矿物加工工程大作业

1、华北科技学院环境工程学院 矿物加工工程 大作业分配表学号姓名资料分配比例，%厂型（年处理量），万吨资料一资料二资料三24练硕304525150 矿物加工工程B123班 练硕 201201024324资料二 原煤筛分试验结果 粒级/mm产物名称占全样/%Ad/%>100手选煤7.27 12.36夹矸煤0.40 58.25硫铁矿0.01 58.34矸石2.11 85.41小计9.79 30.0310050手选煤6.56 13.52夹矸煤0.23 57.43硫铁矿0.02 51.5矸石1.03 85.33小计7.84 24.34>50合计17.63 27.50 5025煤10.61 19

2、.782513煤18.70 18.98136煤19.00 18.363煤7.31 19.3230.5煤20.42 16.820.50煤6.33 17.74500合计82.37 18.33合计100.00 19.95一、原煤筛分实验结果资料三 原煤粒度组成筛分结果粒度/mm产品名称综合 K=100%数量/%灰分/%占本级占全样>100煤12.09 12.09 22.07 夹矸煤1.24 1.24 52.58 矸石1.29 1.29 79.26 硫铁矿0.04 0.04 61.99 小计14.6614.6629.7910050煤6.33 6.33 23.10 夹矸煤1.05 1.05 53.

3、99 矸石2.43 2.43 80.30 硫铁矿0.05 0.05 65.23 小计9.869.8640.7>50合计24.51 24.51 34.17 5025煤10.74 10.74 34.44 2513煤11.50 11.50 32.34 136煤18.37 18.37 29.81 63煤9.55 9.55 27.41 30.5煤16.20 16.20 23.39 0.50煤9.12 9.12 19.72 500合计75.4875.4827.95原煤总计10010029.47资料一 原煤筛分试验结果 实验前灰分22.96%粒级/mm产物名称占全样/%Ad/%校正灰分/%>10

4、0手选煤0.9530.1229.67 夹矸煤硫铁矿矸石0.7378.4077.95 小计1.6851.1050.65 10050手选煤2.8132.7032.25 夹矸煤0.3662.0761.62 硫铁矿矸石1.373.4973.04 小计4.4746.9346.48 >50合计6.1548.0747.62 5025煤5.9737.0736.62 2513煤10.6330.9630.51 136煤16.6126.2725.82 63煤18.7920.4119.96 31煤18.2216.6716.22 10.5煤11.5215.6515.20 0.50煤12.1115.7915.34

5、500合计93.8521.7921.35 毛煤合计10023.4122.96 原煤合计（除去大于50mm级矸石和硫铁矿）97.9722.3421.89 三层原煤筛分实验结果综合表粒级/mm产品名称一层(k1=30%)二层(k2=45%)三层(k3=25%)综合(k=100%)占本层%占全样%Ad/%占本层%占全样%Ad/%占本层%占全样%Ad/%占本层%占全样%Ad/%1234567891011121314>100手选煤0.950.2929.677.273.2712.3612.093.0222.076.586.5817.57夹矸煤0.000.40.1858.251.240.3152.58

6、0.490.4954.66矸石0.000.010.0058.341.290.3279.260.330.3378.97硫铁矿0.730.2277.952.110.9585.410.040.0161.991.181.1883.82小计1.680.5050.659.794.4130.0314.663.6729.798.578.5731.14>50手选煤2.810.8432.256.562.9513.526.331.5823.15.385.3819.28夹矸煤0.360.1161.620.230.1057.431.050.2653.990.470.4756.48矸石0.000.020.0151.

7、52.430.6180.30.620.6279.88硫铁矿1.30.3973.041.030.4685.330.050.0165.230.870.8779.51小计4.471.3446.487.843.5324.349.862.4740.77.337.3333.89>50合计6.151.8547.6217.637.9327.524.516.1334.1715.9115.9132.405025煤5.971.7936.6210.614.7719.7810.742.6934.449.259.2527.302513煤10.633.1930.5118.78.4218.9811.52.8832.34

8、14.4814.4824.17136煤16.614.9825.82198.5518.318.374.5929.8118.1318.1323.2863煤18.795.6419.967.313.2919.329.552.3927.4111.3111.3121.353-0.5煤29.748.9215.8220.429.1916.8216.24.0523.3922.1622.1617.620.50煤12.113.6315.346.332.8517.749.122.2819.728.768.7617.26500合计93.8528.1621.3582.3737.0718.3375.4818.8727.95

9、84.0984.0921.50毛煤合计10030.0022.9610045.0019.9410025.0029.48100.00100.0023.23二、原煤破碎级与自然级筛分 资料一 表2 原煤破碎级与自然及筛分试验结果综合表粒 级/mm自然级破碎级综合占本级/%占全样/%Ad/%占本级/%占全样/%Ad/%校正灰分/%占本级/%占全样/%Ad/%123456789101150256.36 5.9736.626.360.3963.3762.896.36 6.36 38.23 251311.33 10.6330.5111.330.70 57.2656.7811.33 11.33 32.13 1

10、3617.70 16.6125.8217.71.0952.5752.0917.70 17.70 27.44 6320.02 18.7919.9620.021.2346.7146.2320.02 20.02 21.57 3119.41 18.2216.2219.411.1942.9742.4919.41 19.41 17.83 10.512.27 11.5215.212.270.7541.9541.4712.27 12.27 16.81 0.5012.90 12.1115.3412.90.7942.0941.6112.90 12.90 16.95 合计10093.8521.35 1006.154

11、8.09 47.62 100.00 100.00 22.97 资料二 表2 原煤破碎级与自然及筛分试验结果综合表粒级/mm自然级破碎级综合占本级/%占全样/%Ad/%占本级/%占全样/%Ad/%校正灰分/%占本级/%占全样/%Ad/%1234567891011502512.8810.6119.7839.076.8929.7529.7317.5017.5023.70251322.7018.718.9826.064.5928.5828.5623.2923.2920.8713623.071918.311.251.9828.1328.1120.9820.9819.23638.877.3119.327.

12、81.3823.8323.818.698.6920.0330.524.7920.4216.8212.842.2621.5321.5122.6822.6817.290.507.686.3317.742.980.5322.1922.176.866.8618.08合计10082.3718.3310017.6327.5227.5010010019.95资料三 表二 原煤破碎级与自然及筛分试验结果综合表 粒级/mm 自然级 破碎级 综合 占本级/% 占全样/% Ad/% 占本级/% 占全样/% Ad/%校正灰分/%占全样/%Ad/%500.5mm灰分30.56 1 2345678910502514.23

13、10.7434.4438.889.5342.6942.7120.2738.32251315.2411.532.3421.695.3233.2133.2316.8232.6213624.3418.3729.8117.94.3929.2629.2822.7629.76312.659.5527.417.711.8928.7328.7511.4427.6330.521.4616.223.3910.152.4921.6421.6618.6923.160.5012.089.1219.723.670.919.3819.410.0219.69合计10075.4827.9510024.5234.1534.171

14、0029.473层原煤自然级与破碎级筛分实验结果综合表粒级/mm自然级破碎级综合占本级/%占全样/%Ad/%占本级/%占全样/%Ad/%占本级/%占全样/%Ad/%1234567891011502511.009.2527.3035.195.6035.9514.8514.8530.56500.5mm灰分为23.78251317.2214.4824.1722.663.6131.9218.0818.0825.7213621.5518.1323.2814.562.3232.0520.4420.4424.286313.4511.3121.359.191.4631.0912.7812.7822.463-0

15、.526.3522.1617.6213.992.2326.9724.3924.3918.470.5010.428.7617.264.400.7027.919.469.4618.05500合计100.0084.0921.50100.0015.9132.41100.00100.0023.243层煤+50mm破碎级筛分试验结果综合表粒 级/mm一层（k1=1.85%）二层（k2=7.93%）三层（k3=6.13%）综合（k=15.91%）占本层/%占本级/%占全样/%Ad/%占本层/%占本级/%占全样/%Ad/%占本层/%占本级/%占全样/%Ad/%占本级/%占全样/%Ad/%校正123456789

16、101112131415161750250.396.360.12 62.896.89 39.073.10 29.739.5338.882.38 42.7135.19 5.60 35.95 35.95 25130.70 11.330.21 56.784.59 26.062.07 28.565.3221.691.33 33.2322.66 3.61 31.92 31.92 1361.0917.70.33 52.091.98 11.250.89 28.114.3917.91.10 29.2814.56 2.32 32.05 32.05 631.2320.020.37 46.231.38 7.80.6

17、2 23.811.897.710.47 28.759.19 1.46 31.09 31.09 30.51.9431.680.59 42.12.26 12.841.02 21.512.4910.150.62 21.6613.99 2.23 26.97 26.97 0.500.7912.90.24 41.610.53 2.980.24 22.170.93.670.22 19.44.40 0.70 27.91 27.91 合计6.151001.85 47.62 17.631007.93 27.50 24.521006.13 34.17100.00 15.91 32.41 32.41 资料一 表3 原

18、生煤泥小筛分试验报告表 粒级mm产率%灰分%0.2534.2815.170.250.1771.3317.840.1770.14910.0715.970.1490.12520.7916.080.1250.07520.8517.220.0750.0458.0219.4<0.0454.6619.73合计10016.45资料二 表3 原生煤泥小筛分试验报告表粒级mm产率%灰分%0.2529.0116.80.250.12527.2616.790.1250.07518.9517.090.0750.0455.116.68<0.04519.6824.9合计10018.44资料三 0.5-0筛分实验

19、粒级mm占本级/%灰分/%0.50.250.2725.710.250.12529.9820.440.1250.07513.0819.860.0750.05513.5119.210.0550.0458.3119.38<0.04534.8519.38合计10019.75原生煤泥小筛分实验综合表粒级/mm一层 30%二层 45%三层 25%综合 校正占本级%占全样%灰分%占本级%占全样%灰分%占本级%占全样%灰分%占本级%占全样%灰分%占全样%灰分%1234567891011121314150.2534.281.24 15.1729.010.83 16.80 0.27 0.01 25.7120

20、.07 2.08 15.85 2.08 1.58 0.250.12532.191.17 16.1227.260.78 16.79 29.98 0.68 20.4425.40 2.63 17.44 2.63 2.13 0.1250.07520.850.76 17.2218.950.54 17.09 13.08 0.30 19.8615.41 1.60 17.67 1.60 1.10 0.0750.0458.020.29 19.45.10.15 16.68 21.82 0.50 19.279.02 0.93 18.91 0.93 0.43 <0.0454.660.17 19.7319.680

21、.56 24.90 34.85 0.79 19.3814.73 1.52 21.45 1.52 1.02 合计1003.6316.451002.8518.441002.2819.7584.637681168.7617.96 8.76 17.2617.26-17.96=-0.50<0.2 校正灰分 资料二 表5 -0.5mm原生煤泥浮沉试验综合表密度级产率/%灰分/%<1.3029.746.111.30-1.4036.0610.261.40-1.5015.5118.521.50-1.607.6133.631.60-1.803.0544.29>1.808.0374.94合计100

22、18.32资料一 表5 -0.5mm原生煤泥浮沉试验综合表密度级产率/%灰分/%<1.309.222.571.30-1.4047.56.871.40-1.5015.7312.151.50-1.6013.1822.41.60-1.805.2737.08>1.809.167.4合计10016.45表5 原生煤泥浮沉试验综合密度级/kg/L占本级/%占全样/%灰分/%<1.3019.61.79 2.851.301.4030.62.79 8.671.401.5016.221.48 18.321.501.608.040.73 22.671.601.808.710.79 31.1>

23、1.8016.831.53 52.28合计1009.1219.51原煤-0.5mm煤泥浮沉实验结果综合实验表密度级/Kg.L-1一层二层三层综合校正占本级/%占全样/%Ad/%占本级/%占全样/%Ad/%占本级/%占全样/%Ad/%占本级/%占全样/%Ad/%占本级/%占全样%灰分%<1.309.220.33 2.5729.740.85 6.1119.60.45 2.8518.60 1.63 4.49 18.60 1.63 3.90 1.30-1.4047.51.72 6.8736.061.03 10.2630.60.70 8.6739.38 3.45 8.24 39.38 3.45 7

24、.65 1.40-1.5015.730.57 12.1515.510.44 18.5216.220.37 18.3215.79 1.38 15.84 15.79 1.38 15.25 1.50-1.6013.180.48 22.47.610.22 33.638.040.18 22.6710.03 0.88 25.23 10.03 0.88 24.64 1.60-1.805.270.19 37.083.050.09 44.298.710.20 31.15.44 0.48 35.90 5.44 0.48 35.31 >1.809.10.33 67.48.030.23 74.9416.830.

25、38 52.2810.76 0.94 63.08 10.76 0.94 62.49 合计1003.6316.451002.8518.321002.28 19.51100.00 8.76 17.85 100.00 8.76 17.26原生煤泥小筛分综合灰分为17.26 =17.26-17.85=-0.59<0.2 校正灰分表4 50-0.5浮沉实验密度级占本级/%占全样/%灰分/%1234<1.3015.03 13.05 6.07 1.301.4026.84 23.31 13.04 1.401.5019.05 16.54 21.69 1.501.6010.20 8.86 30.05

26、1.601.808.65 7.51 41.33 >1.8020.23 17.57 75.10 小计100.00 86.85 30.38 煤泥3.48 3.13 35.04 总计100.00 89.98 30.54 表4 500.5mm原煤浮沉试验综合表密度级产率，%灰分，%<1.3016.195.871.30-1.3528.18.811.35-1.4012.1113.761.40-1.509.2718.61.50-1.6010.0627.771.60-1.70637.821.70-1.804.4246.311.80-2.004.4657.09>2.009.3975.56合计1

27、0023.57 煤泥1.5926.69总计10023.62表4 500.5mm原煤浮沉试验综合表密度级产率，%灰分，%<1.3018.854.251.30-1.4044.759.161.40-1.5015.6718.211.50-1.605.1927.871.60-1.803.6939.5>1.8011.8678.46合计10019.96煤泥6.8220.79总计10020.02三层煤500.5级浮沉实验综合表密度级/Kg.L-1一层二层三层综合校正占本级/%占全样/%Ad/%占本级/%占全样/%Ad/%占本级/%占全样/%Ad/%占本级/%占全样/%Ad/%占本级/%占全样/%A

28、d/%12345678910111213141516<1.3016.194.335.8718.857.164.2515.033.286.0717.1314.775.1317.0614.775.18 1.301.4040.2110.7510.344.7516.999.1626.845.8613.0438.9733.6010.2038.8333.6010.25 1.401.509.272.4818.615.675.9518.2119.054.1621.6914.6012.5919.4414.5512.5919.49 1.501.6010.062.6927.775.191.9727.8710.

29、22.2330.057.996.8928.547.966.8928.59 1.601.8010.422.7941.423.691.4039.58.651.8941.337.056.0840.957.026.0841.00 >1.8013.853.7069.6111.864.5078.4620.234.4275.114.6412.6274.6914.5912.6274.74 小计(去煤泥)10026.7323.5710037.9619.9610021.8530.3810086.5423.71100.0086.5423.76煤泥1.590.4326.696.822.7820.793.480.

30、7935.042.984.0024.234.424.0024.23总计10027.1623.6210040.7420.0210022.6435.5410090.5424.9810090.5423.78 =23.76-23.71=0.05<0.2,校正灰分密度级50-0.5浮沉0.5-0综合占本级%占全样/%Ad/%占本级%占全样%Ad/%占本级%占全样/%Ad/%<1.3017.0614.775.1818.601.633.4516.9216.405.011.301.4038.8333.6010.2539.383.457.5638.2437.0510.001.401.5014.551

31、2.5919.4915.791.3814.4714.4213.9718.991.501.607.966.8928.5910.030.8823.228.027.7727.981.601.807.026.0841.005.440.4835.196.766.5540.58>1.8014.5912.6274.7410.760.9461.8914.0013.5773.85总计100.0086.5423.78100.0010.3517.51100.0096.8923.09以上是对入选原煤的资料性质的分析,下面继续进行流程计算:工艺流程的计算1.工艺流程计算的目的、依据和原则 在选煤厂设计的过程中，工

32、艺流程的计算是其中一项重要的环节，是在已确定的工艺流程和工作制度下进行的。工艺流程计算应达到以下目的： 计算出各作业入料和排料的数量和质量； 使整个工艺流程的煤、水、介质数质量和质量达到平衡，为绘制数、质量工艺流程图提供可靠的依据；为计算所需各工艺设备的数量提供资料和依据； 为投资概算提供分析的依据； 为投产后的生产技术管理，生产指标分析对比提供参考。为保证工艺流程计算结果的准确性和提供数据的可靠性，在流程计算时必须依据： 已经科学合理的选择确定的工艺流程； 已经整理合格的入厂（入选）原料煤的筛分、浮沉及可选性试验资料； 设计规范规定并符合实际的各种技术参数； 根据选煤厂的生产能力和工作制度，

33、可退算出的小时处理量： Q=Q0/Tt 式中Q选煤厂小时处理量，t/h；Q0选煤厂年生产能力，t/h；T选煤厂年工作日数，d/a；t选煤厂日工作小时数，h/d。非用户型选煤厂年工作日数可选为300天，每日两班生产，工作按16小时计，即T=300，t=16；用户行选煤厂的年工作制度可以与所服务的用户厂一致。工艺流程计算的原则和应注意的事项：工艺流程计算时必须遵守数、质量平衡的原则，即进入某作业各种物料数、质量总和应等于该作业排出的各种物料数、质量总和。计算时应注意以下几点：（1）.对于灰分、硫分等指标必须用加权平均的方法进行计算。（2）水分指标采用水量平衡原理进行计算。（3）百分数必须是同一基础

34、量时才可以运算；计量单位必须相同才可以运算。例如，计算各作业的质量百分数时，必须以入厂（或入选）原煤100%为基数；又例如，水量必须均采用t/h或m3/h同一计算单位方可进行运算。（4）计算固体物料数量平衡时，应采用干燥基进行。（5）进行工艺流程计算时，必须按照作业顺序进行。2.工艺流程计算(一) 准备作业的计算按照选煤厂设计工艺流程,先进行准备作业的计算,即主选跳汰前筛分作业的计算。图中编号表示计算过程 根据公式Q=Q0/Tt 得到： Q=1500000/(300*16)=312.5 t/h A=23.23% 筛下物： 3=100%*84.090%=84.09% Q3=3*Q=262.78t

35、/h A3=21.50% 筛上物： Q2=Q-Q3=312.5-262.78=49.72t/h 2=100%-84.09%=15.91% A2=（100%*A-3*A3)/(100%-3)=32.37% 手选矸石杂物认为产率为0%，所以Q4=0 A4=0 4=0% 所以进入破碎的Q5=Q2=49.72t/h A5=A2=32.37% 5=2=15.91% .破碎后与筛下物混合 Q6=Q5+Q3=312.5 t/h 6=5+3=100% A6=(5*A5+3*A3)/(5+3)=21.78%下面进入分选机算：根据500mm浮沉综合资料,500.5mm浮沉综合资料和0.50mm浮沉综合资料的可选性

36、曲线：三层煤500.5级浮沉实验综合表密度级/Kg.L-1产率/%灰分/%累计分选密度±0.1/（g/³）浮物沉物产率/%灰分/%产率/%灰分/%密度级 /(g/³)产率/%123456789<1.3017.06 5.18 17.06 5.18 100.00 23.75 1.30 55.89 1.301.4038.83 10.25 55.89 8.70 82.94 27.58 1.40 53.37 1.401.5014.55 19.49 70.44 10.93 44.11 42.82 1.50 22.51 1.501.607.96 28.59 78.40 1

37、2.72 29.57 54.30 1.60 11.47 1.601.807.02 41.00 85.42 15.05 21.61 63.78 1.70 7.02 >1.8014.59 74.74 100.00 23.75 14.59 74.74 小计(去煤泥)100.00 23.76 煤泥4.42 24.23 总计100.00 23.78 0.550可选性曲线坐标计算数据基元灰分曲线浮物累计曲线沉物累计曲线密度曲线±0.1曲线X1Y1X1Y1X1Y1X2Y2X2Y2灰分/100%产率/%灰分/100%产率/%灰分/100%产率/%密度曲线产率/%密度产率/%303023.75

38、0.00 1.30 82.94 1.30 44.11 5.18 8.53 5.18 17.06 27.58 17.06 1.40 44.11 1.40 46.63 10.25 36.48 8.70 55.89 42.82 55.89 1.50 29.56 1.50 77.49 19.49 63.16 10.93 70.44 54.30 70.43 1.60 21.60 1.60 88.53 28.59 74.42 12.72 78.40 63.78 78.39 1.80 14.58 1.70 92.98 41.00 81.91 15.05 85.42 74.74 85.41 74.74 92.

39、71 23.75 100.00 8610086100三层煤00.5级浮沉实验综合表密度级/Kg.L-1产率/%灰分/%累计分选密度±0.1/（g/³）浮物沉物产率/%灰分/%产率/%灰分/%密度级 /(g/³)产率/%123456789<1.3018.60 3.90 18.60 3.90 100.00 17.27 1.30 57.98 1.301.4039.38 7.65 57.98 6.45 81.40 20.32 1.40 55.17 1.401.5015.79 15.25 73.76 8.33 42.02 32.19 1.50 25.82 1.501.

40、6010.03 24.64 83.79 10.28 26.24 42.38 1.60 12.75 1.601.805.44 35.31 89.24 11.81 16.21 53.36 1.70 5.44 >1.8010.76 62.49 100.00 17.27 10.76 62.49 总计100.00 16.72 00.5可选性曲线坐标计算数据基元灰分曲线浮物累计曲线沉物累计曲线密度曲线±0.1曲线X1Y1X1Y1X1Y1X2Y2X2Y2灰分/100%产率/%灰分/100%产率/%灰分/100%产率/%密度产率/%密度产率/%1.00 0.00 1.00 0.00 17.27 0.00 1.30 81.40 1.30 42.02 3.90 9.30 3.90 18.60 20.32 18.60 1.40 42.02 1.40 44.83 7.65 38.29 6.45 57.98 32.19 57.98 1.50 26.24 1.50 74.18 15.25 65.87 8.33 73.76 42.38 73.76 1.60 16.21 1.60 87.25 24.64 78.78 10.28 83.79 53.36 83.79 1.80 10.76 1.70 94.56 35.31 86.51 11.81 89.2