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12级矿物加工毕业设计

发表人:本站编辑 来源:本站原创 发表时间:2019-04-29 17:17:13 浏览次数:

 
 


 


 


 


矿物加工专业


 


 


 


      


 


 


 


 


 


 


 


 


中国矿业大学(北京)山西函授站


2009-6-30


 


 


 


 


 


 


选煤专业学生通过毕业设计的形式总结三年来的学习成果,并对所学习的专业理论知识和生产实际有机的联系起来,通过设计提高学生的专业理论水平,为以后走上工作岗位打下坚实的理论基础,同时,掌握初步设计要求的部分内容和绘制图纸的要求。


毕业设计要求完成的内容包括二个部分。


第一部分 初步设计说明书和图纸


     


1、设计的依据、要求和目的。


本课程设计要求学生学会综合、校正煤质资料的方法,并且对煤质资料进行分析;掌握工艺流程的计算原理和方法;掌握工艺设备选型和计算方法;初步掌握车间设备布置的方法和培养绘制工艺图纸的能力。


课程设计包括说明书与图纸两部分。说明书书写要简明、清楚,选用的指标与资料数据要注明来源和依据,要写出主要的计算过程和步骤;准备车间的机组剖面布置图12张,平面图1张,工艺设备联系图1张。对已给定工艺流程计算,将数质量指标填到工艺流程图上,在说明书中对工艺流程分析,并给予评价


2、原料煤基地概况(或对所实习地点的原料煤基地进行描述)。


3、选煤厂的类型及厂型。


4、选后产品的用途及要求。


5、煤质特征、选煤方法、分选上下限及设计过程中的特点。


6、供水、供电、地面运输及地面建筑物概况。


7、待解决的问题。


前言用简洁的文字写成。


第一章 原料煤基地概况


第一节 厂区概况


一、厂区地理位置。


二、厂区地理概况。


三、厂区其它企业及矿产等。


第二节 原料煤基地


一、煤层特征描述。


矿区含煤层数、各煤层的厚度、可采程度等。将入选的原煤煤质特征列表说明。


二、生产矿井及其生产能力、储量等。


第二章 选煤厂类型、厂型


一、选煤厂类型。


二、选煤厂的厂型、工作制度(按设计任务 fc8 书叙述)。


三、选煤厂的生产能力(即日和小时处理能力,按设计任务书叙述)。


 


第三章   选煤工艺


第一节   煤质特征及其可选性


一、            煤质特征:煤的物理性质、化学性质即煤的牌号、灰分、硫分、煤的结焦性等。


检查筛分浮沉资料在煤样试验前后重量与灰分的误差是否符合国标或部标要求,有无错误的数据,以确认资料的正确性和可靠性。


煤质资料的初步分析(原煤特性)


对矸石、硫、磷有害杂质含量有初步的估计,例如,低矸或中矸等矸石含量偏低的原煤,可考虑检查性手选,矸石经过破碎由跳汰机排出。资料合成时不扣除矸石。如果矸石含量大,原煤属于高矸,应考虑使用选择性破碎机等选出矸石,资料合成时应扣除矸石。原煤含硫小于1.5%,可考虑特殊处理。


1    入厂原煤筛分资料综合表



    
        
            
            粒级


            mm


            
            
            A煤层(占?%)


            
            
            B煤层(占?%)


            
            
            综合(100%)


            
        
        
            
            r


             


            
            
            r


            
            
            Ad


            
             < d9e br>            r


            
            
            r


            
            
            Ad


            
            
            Σr


            
            
            Ad


            
        
        
            
            1


            
            
            2


            
            
            3


            
            
            4


            
            
            5


            
            
            6


        &nbs fc8 p;   
            
            7


            
            
            8


            
            
            9


            
        
        
            
             


            


            +100夹矸


            矸石


            小计


             


            
            
             


            14.33


            

0.68


            

5.16


            

20.17


            
            
             


            5.74


            

0.27


            

2.06


            

8.07


            
            
             


            14.50


            43.66


            79.47


            32.06


            
            
             


            17.41


            -


            0.12


            17.53


            
            
             


            10.45


            -


            0.07


            10.52


            
            
             


            11.58


            -


            83.40


            12.06


            
            
             


            
            
             


            
        
        
            
             


            


            夹矸


            100-50矸石


            小计


             


            
            
             


            8.18


            

0.24


            2.90


            11.32


            
            
             


            3.27


            0.10


            1.16


            4.53


            
            
             


            16.74


            45.82


            77.62


            32.95


            
            
             


            9.76


            0.05


            0.40


            10.21


            
            
             


            5.86


            0.03


            0.24


            6.13


            
            
             


            12.58


            46.60


            83.28


           &nb cae sp;15.53


            
            
             


            
            
             


            
        
        
            
             


            50-25


            25-13


            13-6


            6-3


            3-0.5


            -0.5


            
            
             


            12.68


            10.99


            15.45


            14.78


            7.98


            6.63


            
            
             


            5.07


            4.40


            6.18


            5.91


            3.19


            2.65


            
            
             


            27.36


            24.24


            23.00


            18.81


            17.51


            16.78


            
            
             


            12.30


            8.02


            14.03


            15.59


            11.32


            11.00


            
            
             


            7.38


            4.81


            8.42


            9.35


            6.79


            6.60


            
            
             


            16.88


            17.10


            17.27


            15.03


            13.74


            14.93


            
            
             


            
            
             


            
        
        
            
            总计


             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
        
    

2、煤质资料校正与综合:


首先校正筛分试验资料,校正原则见书(筛分资料的灰分校正)。各煤层筛分试验灰分校正后按表1进行综合。


考虑+50mm的原煤(包括夹矸、矸石)全部破碎,其破碎至-50mm的筛分试验资料见表2。破碎级的总灰分与表1中的灰分有差异,以表1+50mm灰分为准,校正破碎级的灰分,校正后的灰分填入表2的第10栏。


 


2 +50mm破碎至-50mm筛分资料综合表



    
        
            
             


             


            粒级


            mm


            
            
             


            Ak1=


             


            
            
             


            B k2=


             


            
            
             


            综合k1+k2=


            
        
        
             402
            重量%


             


            
            
             


            Ad


            
            
           bbe   重量%


            
            
             


            Ad


            
            
             


            ∑r


            
            
            Ad


            
        
        
            
            r


             


            
            
            r


            
            
            r


            
            
            r


            
            
            校正前


            
            
            校正后


            
        
        
            
            1


             


            
            
            2


            
            
            3


            
            
            4


            
            
            5


            
            
            6


            
            
            7


            
            
            8


            
            
            9


            
            
            10


            
        
       47a ;  
            
            50-25


            
            
            33.14


            
            
             


            
            
          &nbs b46 p; 37.48


            
            
            31.93


            
            
             


            
            
            15.37


            
            
             


            
            
             


            
            
             


            
        
        
            
            25-13


            
            
            19.89


            
            
   fc8            


            
            
            32.84


            
            
            20.51


            
            
             


            
            
            13.70


            
            
             


            
            
             


            
            
             


            
        
        
            
            13-6


            
            
            20.74


            
            
             


            
            
            29.07


            
            
            20.07


           4f2   
            
             


            
            
            12.26


            
            
             


            
            
             


            
&nbs ace p;           
             


            
        
        
            
            6-3


            
            
            11.73


            
            
             


            
            
            23.90


            
            
            10.46


            
            
             


            
            
            10.96


            
            
    &n fc8 bsp;        


            
            
             


            
            
             


            
        
        
            
            3-0.5


            
            
            7.42


            
            
             


            
            
            19.66


            
            
            8.63


            
            
             


            
            
            9.63


            
            
             


            
            
             


            
            
             


            
    56a      
        
            
            -0.5


            
            
            7.08


            
            
             


            
            
            18.40


            
    &nb a56 sp;       
            8.40


            
            
             


            
            
            10.51


            
            
             


            
            
             


            
            
             


            
        
        
            
            总计


            
            
             


            
            fc8  
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
        
    

 


 


 用表1的资料将-50mm粒级原煤AB层和综合的结果填入表3,并且计算出占-50mm本粒级的产率。


 2与表3的资料综合为表4


 


3 -50mm自然级原煤筛分资料



    
        
            
            粒级


            mm


            
            
            Ak1=


            

            
            B k2=


            
            
            综合k1+k2=


            
        
        
            
            重量%


            
            
            Ad


   &n 9de bsp;        
            
            重量%


            
            
            Ad


            
            
            ∑r


            
            
            Ad


            
        
        
            
            r


            
            
            r


            
            
            r


             < fc8 br>            
            r


            
        
        
            
            1


            
            
            2


            
            
            3


            
            
            4


            
            
            5


            
            
            6


            
            
            7


            
            
            8


            
            
            9


            
        
        
            
            50-25


            
            
             


            
     & 65a nbsp;      
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
 & 966 nbsp;           


            
            
             


            
        
        
            
            25-13


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


    &nb fc8 sp;       
            
             


            
            
             


            
            
             


            
        
        
            
            13-6


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
        
        
           6d2   
            6-3


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


       8ee       
            
             


            
            
             


            
            
             


            
        
        
            
            3-0.5


            
            
             


            
            
             


            
            
             


       &nbs fc8 p;    
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
        
        
            
            -0.5


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
        
        
            
            总计


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
        
    

 


 


 


 


 


 


 


 


入选原煤-50mm自然级和破碎级筛分资料综合



    
        
 &nb fc8 sp;          
            粒级


            mm


            
            
            Ak1=


            
            
            B k2=


            
            
            综合k1+k2=


            
        
        
            
            重量%


            
            
            Ad


            
            
            重量%


            
            
            Ad


            
            
            ∑r


            
            
            Ad


            
        
        
            
            < 7c2 p align="center">r


            
            
            r


            
            
            r


            
            
            r


            
        
        
            
            1


            
            
            2


            
            
7fe             3


            
            
            4


            
            
            5


            
            
            6


            
            
            7


            
            
            8


            
            
            9


      &n fc8 bsp;     
        
        
            
            50-25


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
        
        
            
            25-13


            
            
             


            
            
             


            
         &nbs 83a p;  
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
        
        
            
            13-6


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


         & fc8 nbsp;  
            
             


            
            
             


            
        
        
            
            6-3


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
        
        
            
            3-0.5


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
      &nb 70e sp;      


            
        
        
            
            -0.5


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
        
        
            
            总计


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             

92a
            
        
    

 


 


入选原煤50-0.5mmr=        Ad=


以筛分资料为基础,计算和煤层的自然级、破碎级的浮沉试验资料(见表5、表6),并将此两表的资料综合,结果列入表7


5 A层煤50-0.5mm自然级和破碎级浮沉试验资料



    
        
            
             


             


            密度级


            
            
            自然级k1=


             


            
            
            破碎级k2=


             696 ;
            
            综合k1+k2=


            
        
        
            
            产率%


            
            
             


            Ad


            
            
            产率%


             


  fc8            
            
             


            Ad


            
            
            产率%


            
            
             


            Ad


            
        
        
            
            r


             


            
            
            r


            
            
            r


            
            
            r


            
            
            r


            
            
            r


            
        
        
            
            1


             


             9a2
            
            2


            
            
            3


            
            
            4


            
            
            5


            
            
            6


            
            
            7


            
            
            8


            
            
            9


    61e          
            
            10


            
        
        
            
            -1.3


            
            
            5.94


            
            
             


            
            
  & fc8 nbsp;         4.28


            
            
            4.23


            
            
             


            
            
            5.10


            
            
             


            
            
             


            
            
             


            
        
        
            
            1.3-1.4


            
            
            45.61


            
            
             


            
            
            8.79


            
            
            38.51


            
            
             


          &n a1a bsp; 
            
            9.61


            
            
             


            
            
             


            
            
             


            
        
        
            
            1.4-1.5


            
            
            20.82


            
            
             


            
            
            15.38


    &nbs 5a6 p;       
            
            16.38


            
            
             


            
            
            16.28


            
            
             


            
            
    & fc8 nbsp;        


            
            
             


            
        
        
            
            1.5-1.6


            
            
            6.43


            
            
             


            
            
            26.01


            
            
            7.22


            
            
             


            
            
            25.81


            
            
             


            
            
             


            
            
             


            
        
        
            
            1.6-1.8


            
            
            5.85


            
            
             


            
            
            39.01


            
            
            6.38


            
            
             


            
            
            38.50


            
            
             


            
            
             


            
            
             


            
        
        
            
            +1.8


            
            
            15.35


            
            
             


            
        & fc8 nbsp;   
            73.22


            
            
            27.28


            
            
             


            
            
            80.18


            
            
             


            
            
             


            
            
             


            
        
        
            
            小计


            
            
            100.00


            
            
             


            
            
            22.66


            
            
            100.00


            
            
             


            
            
            32.89


            
            
             


            
            
             


            
            
             


            
        
        
            
            小计占总计


            
            
            97.09


            
            
             


            
            
            22.66


            
            
            99.49


            
            
             


            
            
            32.89


            
            
             


            
         fc8 ;    
             


            
            
             


            
        
        
            
            煤泥


            
            
            2.91


            
            
             


            
            
            22.06


            
            
            0.51


            
            
             


            
            
            24.20


            
            
             


            
            
             


            
            
             


            
        
        
            
            总计


            
            
            100.0


            
            
             


            
            
            22.64


            
            
            100.0


            
            
             


            
            
            32.85


            
            
            100.0


            
            
             


            
            
             


            
        
    

 


 


 


 


 


 


 


 


 


6 B层煤50-0.5mm自然级和破碎级浮沉试验资料


 



    
        
            
             

fc8
             


             


             


            密度级


            
            
             


            自然级k1=


             


            
            
             


            破碎级k2=


            
            
             


            综合k1+k2=


            
        
        
            
             


            产率%


             


            
            
             


            Ad


            
            
             


            产率%


            
            
             


            Ad


            
            
             


            产率%


            
            
             


            Ad


            
        
        
            
            r


             


            
            
            r


            
            
            r


            
            
            r


            
            
            r


            
            
             3c6 r


            
        
        
            
            1


             


            
            
            2


            fc8 ; 
            
            3


            
            
            4


            
            
            5


            
            
            6


            
            
            7


            
            
            8


            
            
            9


            
            
            10


            
        
        
            
            -1.3


            
            
            16.28


            
            
             


            
            
            5.53


            
            
 &nbs c72 p;          4.20


            
            
             


            
            
            4.74


            
            
             


            
            
             


            
            
             


            
        
        
            
            1.3-1.4


            
            
            54.76


            
            
             


            
            
            8.67


            
           & 34e nbsp;
            66.55


            
            
             


            
            
            8.54


        &nb fc8 sp;   
            
             


            
            
             


            
            
             


            
        
        
            
            1.4-1.5


            
            
            15.60


            
            
             


            
            
            15.43


            
            
            16.69


            
            
             


            
            
            15.88


            
            
             


            
            
             


            
            
     &nb cea sp;       


            
        
        
            
            1.5-1.6


            
            
            4.48


            
            
             


            
            
            25.21


            
            
            4.35


            
            
             


            
            
            24.38


            
            
             


            
            
             


            
            
             


            
        
        
            
            1.6-1.8


            
            
            3.45


            
            
             


            
            
            35.68


            
            
            4.01


            
            
             


            
            
            31.28


            
            
             


            
            
             


            
            
             


            
        
        
            
            +1.8


            
            
            5.43


            
            
             


            
            
            69.61


            
       &nbs d62 p;    
            4.20


            
            
             


            
            
            69.18


            
            
             


            
            
             


            
            
             


            
        
        
            
            小计


            
            
            100.00


            
            
             


            
            
            14.19


            
            
            100.0


            
            
             


            
            
            13.75


            
            
             


            
            
             


            
            
             


            
        
        
            
            小计占总计


            
            
            96.37


            
            
             


            
            
            14.19


            
            
            98.96


            
            
             


            
            
            13.75


            
            
             


            
            
             


            
         &nbs dda p;  
             


            
        
        
            
            煤泥


            
            
            3.63


            
            
             


            
            
            20.10


            
            
            1.04


            
            
             


            
            
            19.81


            
            
             


            
            
             


            
            
             


            
         1e6
        
            
            总计


            
            
            100.0


            
            
             


            
            
            14.40


            
            
            100.0


            
            
             


            
            
            13.81


            
            
            100.0


            
            
             


            
            
             


            
        
    

 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


7 AB层煤50-0.5mm自然级和破碎级浮沉试验资料


 



    
        
            
       &n e52 bsp;     


             


             


             


            密度级


            
            
             


            自然级k1=


             


            
            
             


            破碎级k2=


            
            
             


            综合k1+k2=


            
        
        
            
             


            产率%


             


            
            
             


            Ad


            
            
             


            产率%

< 16e br>            
            
             


      &nb fc8 sp;     Ad


            
            
             


            产率%


            
            
             


            Ad


            
        
        
            
            r


             


            
            
            r


            
            
            r


            
            
            r


            
            
            r


            
            
            r


            
        
        
            
            1


             


            
            
            2


&nbs eca p;           
            
            3


            
            
            4


            
            
            5


            
            
            6


            
            
            7


            
            
            8


            
            
            9


            
            
            10


            
        
        
            
            -1.3


            
            
             


            
            
             


            
            
    & f6 nbsp;        


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
        
        
            
            1.3-1.4


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
        
        
            
            1.4-1.5


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             
            
        
        
            
            1.5-1.6


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
        
        
            
            1.6-1.8


            
            
             


            
 &nb fba sp;          
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
        
        
            
            +1.8


            
            
             


            
            
             


            
            
             


            
            
             


6   fc8            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
        
        
            
            小计


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
      & fc8 nbsp;      


            
            
             


            
            
             


            
        
        
            
            小计占总计


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
        
  6a        
         & f56 nbsp;  
            煤泥


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
        
        
            
            总计


            
            
            100.0


            
            
      fc8 ;        


            
            
             


            
            
            100.0


            
            
             


            
            
             


            
            
            100.0


            
            
             


            
            
             


            
        
    

 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


8     50-0.5mm入选原煤浮沉资料校正表


 



    
        
            
             


            密度级


            
& e2 nbsp;           
             ede  


            全级综合


             


            
            
             


            校正后


            
            
             


            浮物累计


            
            
             


            沉物累计


            
        
        
            
             


            


            
            
             


            Ad


             


            
            
             


            r


            
            
             


            Ad


            
            
          &nb fc8 sp;  


            r


            
            
             


            Ad


            
            
             


            r


            
            
             


            Ad


            
        
        
            
             


            1


             


            
            
             


            2


            
            
             


            3


            
            
             


            4


            
            
             


            5


            
            
        &nb 15a sp;    


            6


            
            
             


            7


            
            
             


            8


            
            
             


            9


            
        
        
            
             


            -1.3


             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
&nb fc8 sp;           
             


            
            
             


            
        
        
            
             


            1.3-1.4


             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
        
        
            
             


            1.4-1.5


             


            
            
   dee            


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
        
        
            
             


            1.5-1.6


             


            
            
             


            
            
             


        & fc8 nbsp;   
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
        
        
            
             


            1.6-1.8


             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


         &n 24a bsp;  
            
             


            
            
             


    &nbs d76 p;       
            
             


            
        
        
            
             


            +1.8


             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


         &nbs fc8 p;  
        
        
            
             


            小计


             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
        
        
            
             


            小计占总计


             


            
            
             


  &nbs 2c2 p;         
            
             


            
            
             


            
    &n cfe bsp;       
             


            
            
             


            
            
             


            
            
             


            
            
             


            
        
        
            
             


            煤泥


             


            
            
             


            
            
             


            
            
             


            
            
             


  &nbs fc8 p;         
            
             


            
            
             


            
            
             


            
            
             


            
        
        
            
             


            总计


             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


     33a         
            
             


            
        
    

 


 


3、原煤的可选性、选煤方法的限制、工艺流程的确定


各选煤方法的优缺点,来煤的性质,可选性曲线,分选作业计算等综合考虑确定工艺流程。 c86


            线


 


4、原煤处理能力、工作制度和服务年限


参照设计任务书的要求


5、工艺流程的计算


设计任务;


计算目的;


工艺流程的计算:


数质量流程的计算、水量流程的计算(写出主要计算公式)


选煤产品理论平衡表 (方案比较)



    
        
            
             


            


            


            
            
            

δ1=     δ2=


            
            
            

δ1=      δ2=


            
            
            

δ1=     δ2=


            
            
            

δ1=     δ2=


            
       &nb fc8 sp;
        
            
            


            
            
            Ad


            
            
            


            
            
            Ad


            
            
            


            
            
            Ad


            
            
            


            
            
            Ad


            
        
        
            
             


            精煤


             


            
            
             


            
            
             


            
            
      &n 3b2 bsp;      


            
            
             


            
            
             


            
            
          &nb c0e sp;  


            
            
             


            
            
             


            
        
        
            
             


            中煤


             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
      &n fc8 bsp;      


            
            
             


            
            
             


            
        
        
            
             


            矸石


             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
        
        
       &nbs 42a p;    
            合计


             


            
            
            100.00


            
            
             


            
         & b96 nbsp;  
            100.00


            
            
             


            
            
            100.00


            
            
             


            
            
            100.00


            
            
             


            
        
    

 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


10   主选产品计算表    I=


 



    
        
            
            密度级


            
fc8             
            原煤


            
            
            矸石段δ1=


            
            
            中煤段δ2=


            
            
            精煤


            
        
        
            
            


            
            
            Ad


            
            
            &<593;


            
            
            r


            
            
            r


            
            
            Ad


            
            
            r


            
            
            &<593;


            
            
            r


            
            
            r


            
            
            Ad


            
            
 &nbs b1e p;          r


            
            
            r


            
            
            Ad


            
        
        
            
            1


            
            
            2


            
            
            3


            
            
            4


            
            
            5


            
            
            6


            
            
            7


            
            
            8


            
            
            9


            
            
            10


            
            
            11


            
            
            12


            
            
            13


            
            
            14


            
            
            15


            
        
        
            
            -1.3


            
            
             


            
            
             


            
            
      51a         


            
            
             


            
            
             


            
            
             


            
            
             

            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
        
        
            
            1.3-1.4


            
         &nb fc8 sp;  
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
        
        
            
            1.4-1.5


            
            
             


            
            
             


            
            
           a2e    


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
    fc8          
             


            
            
             


            
            
             


            
        
        
            
            1.5-1.6


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


   &n 60a bsp;        
            
             


            
            
             


            
            
             


            
            
             


            
            
             


     & 9b6 nbsp;      
        
        
            
            1.6-1.8


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
        fc8       


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
        
        
            
            +1.8


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
            & 93e nbsp;


            
            
             


            
            
             


            
            
             


            
            
             


            
        
        
            
            小计


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
        
    

 


 


11           



    
        
            
            产品


            
            
                   %


            
            
            Ad%


            
        
        
            
            r


       &nbs 8c6 p;    
            
            r


            
        
        
            
            精煤


             


            
            
             


            
            
             


            
            
             


            
        
        
            
            中煤


       & fc8 nbsp;     


            
            
             


            
            
             


            
            
             


            
        
        
            
            矸石


             


            
            
             


            
            
             


            
            
             


            
        
        
            
            小计


             


            
            
            100


            
            
             


            
            
             


            < 772 /td>
        
        
            
            小计占总计


             


            
            
             


            
            
             


            
            
             


            
        
        
            
            次生煤泥


         &nbs 84e p;   


            
            
             


            
            
             


            
            
             


            
        
        
            
            浮沉煤泥


             


            
            
             


            
            
             


            
            
             


            
        
        
            
            总计


             


            
            
            100


            
            
             


            
            
             


            
        
    

 


 


 


 


 


 


12 再选产品计算表    I=



    
        
            
            密度级


            
            
            入料


            
            
            矸石段δ1=


            
            
            中煤段δ2=


            
            
         & 7ea nbsp;  精煤


            
        
        
            
            


            
            
            Ad


            
            
            &<593;


            
            
            r


            
            
            r


            
            
     &n 7d6 bsp;      Ad


            
            
            r


            
            
            &<593;


            
            
            r


            
            
            r


            
            
            Ad


            
            
            r


            
            
            r


            
            
            Ad


            
        
        
            
            1


            
            
            2


            
            
            3


            
            
            4


            
            
            5


            
            
            6


            
            
            7


            
            
            8


            
            
            9


            
            
            10


            
&nb 862 sp;           
            11


            
            
            12


            
            
            13


            
            
            14


            
            
            15


            
        
        
            
            -1.3


            
            
   &nb 75e sp;         


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
            fc8 ;  


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
        
        
            
            1.3-1.4


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             < 6e6 /p>
            
            
             


            
            
             


            
        
        
            
            1.4-1.5


            
            
             


            
            
             


            
   fc8           
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
        
        
            
            1.5-1.6


  &n 952 bsp;         
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
          66e     


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


         & fc8 nbsp;  
            
             


            
        
        
            
            1.6-1.8


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
        
        
            
            +1.8


            
            
             


            
            
             


            
            
             


            
            
 &nb 5f6 sp;           


            
            
             


            
            
             


            
            
             


            
            
             


            
            
fc8              


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
        
        
            
            小计


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
       a42       
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
        
    

 


 


13           



    
        
            
             


            产品


            
            
                   %


            
            
             


            Ad%


            
        
        
            
            r


            
            
            r


            
        
        
            
             


            精煤


            
            
             


            
            
             


            
            
             


            
        
        
            
             


            中煤 


            
            
             


            
            
             


            
            
             


          aba    
        
        
            
             


            矸石 


            
            
             


            
            
             


            
            
             


            
        
        
            
             


            小计


            
            
             


            
            
             


            
            
             


            
        
        
            
             


            小计占总计


            
            
             


            
            
             


            
            
             


            
        
        
            
             


            次生煤泥


             


            
            
             


            
            
             


            
            
             


            
        
        
            
             


            总计


             


            
            
             


            100


            
            
             


            
            
             


            
        
    

 


 


 


 


 


 


 


 


14 50-0.5mm b32 主再选产品实际综合平衡表



    
        
            
            产 品


            
            
               


            
            
            r


            
            
            

Ad %


            
        
        
            
             


             


            洗精煤


             


             


            
            
            主选精煤


            
            
             


            
            
             


            
        
        
            
            再选精煤


            
            
             


            
            
             


            
        
        
            
            精煤小计


            
            
             


            
            
             


            
        
        
            
            再选中煤


            
            
             


            
            
             


            
        
        
            
             


            洗精煤


            
            
            主选矸石


            
            
             


            
            
             


           baa ;  
        
        
            
            再选矸石


            
            
             


            
            
             


            
        
        
            
            矸石小计


            
            
             


            
            
             


            
        
        
            
             


             


            煤 泥


            
            
        &nbs 416 p;   主选浮沉煤泥


            
            
             


            
            
             


            
        
        
            
     &nbs fc8 p;      主选次生煤泥


            
            
             


            
            
             


            
        
        
            
            再选次生煤泥


            
            
             


            
            
             


            
        
        
            
            原生煤泥


            
            
             


            
            
             


            
        
        
            
            煤泥小计


            
            
             


            
            
             


            
        
&nb c22 sp;       
            
                  


            
            
            100.00


            
            
             


            
        
    

 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


 


15     



    
        
            
             


            选煤过程用水量


             


      & 39e nbsp;     
            
             


            m3/h


            
            
             


            选煤过程排出水量


         &nbs fc8 p;  
            
             


            m3/h


            
        
        
            
             


            原煤带入水量


             


            
            
             


            
            
             


            


             


            


             


            


            
            
             


            
            
             


            
        
        
            
             


            


             


            


             


            


            
     & c9a nbsp;      
             


            主选用水


             


            
            
             


            
            
             


            
            
             


            
        
        
            
             


            再选用水


             


            
            
             


            
            
             


            
            
             


            
        
        
            
             


             


             


            
            
             


            
  &nb fc8 sp;         
             


            
            
             


            
            
             


            
        
        
            
             


            


             


             


             


            


            
            
             


            块精分级筛


             


            
            
             


            
            
             


            
            
             


            
            
             


            
        
        
            
             


            末煤脱泥筛


             


            
            
             


            
            
             


            


             


            


             


            


            
            
             


            
            
             


            
        
        
            
             


            浮精溜槽


             


            
            
             


            
            
         & 2ae nbsp;   


            
            
             


            
        
        
            
             


             


            
            
             


            
            
             


             


             


            
            
             


            
        
        
            
             


            全部用水


            
            
             


            
            
             


            排出水量


             


            
            
             


            
        
        
            
            
            
            
            
            
   & d8a nbsp;        
        
    

第二节 选煤方法、分选粒级及工艺流程说明


一、选煤方法及分选粒级。


二、工艺流程说明。


1、原煤准备流程;


2、重力选煤流程:说明选择工艺流程的方案比较过程,及选择流程的依据和理由。


3、选煤作业的计算: 


近似公式计算三产品实际结果见表5


4、工艺流程制定的依据


第三节    选煤工艺流程的计算


一、数质量流程计算。写出计算公式


二、水量流程计算。水量平衡计算结果见表


选煤产品最终平衡表


三、洗选产品总平衡表。



    
        
            
            产品名称


            
            
            数量


            
            
            灰分


            Ad%


            
            
            水分


            Mt%


            
        
        
            
            r%


     &nbs 236 p;      
            
            t/h


            
            
            t/d


            
            
            104t/a


            
        
        
            
             


             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
            
             


            
        
        
            
             


             


            
            
             


            
            
             


            
            < e02 td valign="top" width="81">
             


            
            
             


            
            
             


            
            
             


            
        
    

四、介质流程计算(重介选时用)。


第四节   主要工艺设备的选择与计算


一、根据工艺布置选择设备的不均匀系数。


二、依照工艺流程图中各作业的处理量乘以不均匀系数选择设备。


三、考虑设备的备用台数,并与工艺布置的要求相配合。


四、根据处理量计算出所需台数,并列出表格。


                         主要设备选型计算表




    
        
            
            序号


            
            
            设备名称


            
            
            主要技术规格


            
            
            入料量


            t/h


            
            
            单位处理量t/h


            
            
            计算面积㎡


            
            
            计算台数(台)


            
            
            选择台数(台)


            
            
            备注


            
        
        
            
             


             


             


             


             


             


             


             


             


             


             


             


             


            
            
             


            
            
             


            
            
             


            
        &nb b42 sp;   
             


            
            
             


            
            
             


            
            
             


            
            
             


            
        
    

山西煤炭职业技术学院
Shanxi Vocationnal and Technical College of Coal
学院电话(传真):0351-7975199
唐槐校区:山西综改区唐槐园区、太原市西贾北街72号
晋ICP备09009816 晋公网安备14010502050233号
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