选煤厂设计

r 本

r Ad r 本

r Ad ∑r

34567

8100 煤 14.33 3.7314.517.4112.8811.5816.61 夹矸0.680.1843.66 — — —0.18 矸石 5.16 1.3479.470.120.0983.4 1.43 小记20.17 5.2432.0617.5312.9712.0618.22100-50 煤8.18 2.1316.749.767.2212.589.35夹矸0.240.0645.820.050.0446.60.10矸石 2.90.7577.620.40.3083.28 1.05小计11.32 2.9432.9510.217.5615.5310.5050-2512.68 3.3027.3612.39.1016.812.4025-1310.99 2.8624.24

8.02 5.9317.18.7913—615.45 4.022314.0310.3817.2714.406—314.78 3.8418.8115.5911.5415.0315.383—0.57.98 2.0717.5111.328.3813.7410.45-0.5 6.63 1.7216.7811.008.1414.939.86合计68.5117.8172.2653.47总计

100.00

26.00

25.17

100.00

74.00

15.10

100.00

123

67850-2533.14 2.7137.4831.93 6.5615.379.2725-1319.89 1.6332.8420.51 4.2113.70 5.8413—620.74 1.7029.0720.07 4.1212.26 5.826—311.730.9623.9010.46 2.1510.96 3.113—0.57.420.6119.668.63 1.779.63 2.38-0.57.080.5818.408.40 1.7210.51 2.30总计

100.00

8.18

30.55

100.00

20.53

13.04

28.71

r 本 r r 本 r

1234567850-2518.51 3.3027.3617.029.1016.8012.4025-1316.04 2.8624.2411.10 5.9317.108.7913—622.55 4.0223.0019.4210.3817.2714.406—321.58 3.8418.8121.5811.5415.0315.383-0.511.65 2.0717.5115.678.3813.7410.45-0.59.68 1.7216.7815.228.1414.939.86总计

100.0017.8121.86100.0053.47

15.78

71.29

表1 入厂原煤筛分资料综合表

粒级mm A煤层（占26%）B煤层（占74%）

综合（10表2 +50mm 破碎至-50mm筛分资料综合表

粒级mm A层K 1=8.18B层K 2=20.53重量%重量%

r 本

Ad %r 本r Ad %综合K 1+K 2=28.71

∑r %表3 -50mm 自然级原煤筛分资料

粒级mm A层K 1=17.81%B层K 2=53.47%重量%重量%Ad

%Ad

%综合K1+K2=7∑r %表4 入选原煤-50mm自然级和破碎级筛分资料综合

r 本r r 本r 1234567850-2517.3912.4019.6132.279.2724.2221.6625-1312.338.7919.4220.33 5.8421.4114.6313—620.2014.4018.8720.26 5.8219.5420.226—321.5715.3815.9710.82 3.1117.3418.493—0.514.6610.4514.498.29 2.3814.5712.83—0.513.849.8615.258.02 2.3014.8712.17总计

100.0071.2917.30100.0028.71

20.41

100.00

r 本r r 本r r 本12345678-1.3 5.940.93 4.28 4.230.32 5.10 5.381.3-1.445.617.128.7938.51 2.919.6143.291.4-1.520.82 3.2515.3816.38 1.2416.2819.371.5-1.6 6.43 1.0026.017.220.5525.81 6.691.6-1.8 5.850.9139.01 6.380.4838.50 6.02+1.815.35 2.4073.2227.28 2.0680.1819.24小计100.0015.6222.66100.007.5632.89100.00小计占总计97.0915.6222.6699.497.5632.89

97.86煤泥 2.910.4722.060.510.0424.20 2.14总计100.0016.0922.64100.007.6032.85100.00

r本r r本r r本12345678-1.316.287.11 5.53 4.200.78 4.7412.671.3-1.454.7623.928.6766.5512.398.5458.281.4-1.515.60 6.8115.4316.69 3.1115.8815.931.5-1.6 4.48 1.9625.21 4.350.8124.38 4.441.6-1.8 3.45 1.5135.68 4.010.7531.28 3.62+1.8 5.43 2.3769.61 4.200.7869.18 5.06小计100.0043.6814.19100.0018.6113.75100.00小记占总计96.3743.6814.1998.9618.6113.75

97.13煤泥 3.63 1.6520.10 1.040.2019.81 2.87总计100.0045.3314.40100.0018.8113.81

100.00

r本r r本r r本12345678-1.3 5.38 1.25 4.4912.677.89 5.4510.691.3-1.443.2910.049.0358.2836.318.6354.221.4-1.519.37 4.4915.6315.939.9215.5716.861.5-1.6 6.69 1.5525.94 4.44 2.7724.97 5.051.6-1.8

6.02 1.4038.83 3.62 2.2534.22

4.27

表7 A和B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=23.69%破碎级K2=64.14%综合K1产率%产率%Ad %Ad %产率%密度级自然级K1=16.09%破碎级K2=7.60%

产率%产率%Ad %Ad

综合K1

产率%表6 B层煤50-0.5自然级和破碎级浮沉试验资料

密度级自然级K1=45.33%破碎级K2=18.81%

产率%Ad %产率%Ad

产率%综合K1综合K 1+K 2=100.00%∑r %表5 A层煤50-0.5mm自然级和破碎级浮沉试验资料

粒级mm 自然级K 1=71.29%重量%Ad %破碎级K 2=28.71%

重量%Ad

+1.819.24 4.4676.44 5.06 3.1569.508.91小计100.0023.1826.00100.0062.3014.06100.00小记占总计

97.8623.1826.0097.1362.3014.0697.33煤泥 2.140.5122.22 2.87 1.8420.07 2.67总计100.0023.6925.92100.0064.1414.23100.00

234678-1.39.14 5.329.02 5.329.02 5.3285.481.3-1.446.358.7145.728.7154.748.1576.461.4-1.514.4115.5914.2215.5968.959.6930.741.5-1.6 4.3225.32 4.2625.3273.2110.6016.521.6-1.8 3.6535.99 3.6035.9976.8111.7912.27+1.87.6173.578.6773.5785.4818.058.67

小计85.4817.3085.4818.05小记占总计

85.4817.3085.4818.05煤泥 2.3520.53 2.3520.53总计

87.8317.38

87.8318.11

精煤82.5010.0080.009.5086.0010.5075.00中煤 4.5030.007.0028.57 1.0057.0012.00矸石13.0065.0013.0065.0013.0065.0013.00合计

100.00

18.05

100.0018.05100.0018.05100.00

5.237.272.383.187.794.9

γδ±

δ±0.

表8 50-0.5mm 入选原煤浮沉资料校正表

密度级

全级综合r %Ad %

校正后浮物累计沉物累计r %Ad %r %Ad %

表9 选煤产品理论平衡表产品δ1= 1.52δ

2=1.76δ1= 1.49δ2=1.76δ1= 1.60δ2=1.76δ1= 1.45δ2=1.76r %Ad %r %Ad %r %Ad %r %

r Ad ζr r本Ad r入12345678-1.310.55 5.320.000.000.00 5.3210.551.3-1.453.498.710.020.010.108.7153.471.4-1.516.6315.590.660.11 1.0315.5916.521.5-1.6 4.9825.32 5.140.26 2.4025.32 4.731.6-1.8 4.2135.9926.92 1.1310.6535.99 3.08+1.810.1473.5790.159.1485.8273.57 1.00小记

100.00

18.05

—

10.65100.0067.7489.35

r本r全精煤55.6144.289.06中煤33.7426.8617.97矸石10.658.4867.74小计100.0079.6218.31小计占总计91.65//次生煤泥7.00 6.1520.4520.45189273

浮沉煤泥 2.35 2.0620.53原生煤泥12.1712.1715.1887.83

总计100.00100.0018.11

ζr r本Ad

r入12345678-1.3 1.00 5.320.000.000.00 5.32 1.001.3-1.443.848.710.020.010.148.7143.831.4-1.536.2115.590.770.28 4.4815.5935.941.5-1.612.1125.32 5.710.6911.1025.3211.421.6-1.88.9235.9928.67 2.5641.0435.99 6.36+1.8 2.9673.5791.02 2.6943.2473.570.27小记100.00

17.97

—

6.23100.00

50.10

93.77

产品名称

r本r全

精煤45.3214.7112.42中煤48.4515.7219.03矸石 6.23 2.0250.10小计100.0024.9823.34小计占总计93.00//次生煤泥7.00 1.88(53.41)总计100.0026.8617.97

表10 主选产品计算表

密度级原煤矸石段δ1　=1.81 0.16

δ2　=1

产品

产率%Ad

表11 主选产品实际平衡表

δ2

产品产率%

Ad%

表13 再选产品实际平衡表

表14 50—0.5mm主再选产品实际

洗精煤表12 再选产品计算表密度级

入料

矸石段δ1=1.82 I=0.18

再选中煤

洗矸石煤泥

主选精煤

再选精煤

精煤小记

主选矸石

再选矸石

矸石小计主选浮沉煤泥主选次生煤泥

24.98m 3/h m 3/h

11.36精煤带走水量17.43

主选用水681.81中煤带走水量 5.36

矸石带走水量 5.97

煤泥带走水量12.65818.22小计41.40块精分级筛0.00末煤脱泥筛20.11浓缩溢流748.3820.11796.93838.33

838.33

产率γ/%日产量/t

年产量/t

水洗精煤58.992145.065168707871.50549.913

浮选精煤16.43597.447376197157.63419.9合计精煤75.422742.512544

905029.1395

9.9

中煤尾煤矸石总计

煤泥

再选次生煤泥原生煤泥煤泥小计48.55总计

表15 水量平衡表

洗煤过程用水量原煤带入水量循环

水

再选用水125.04

选煤过程排出水量损

失

水

全部用水

排出水量

小计清水

浮精溜槽澄

清水

压缩溢流

小计小计0.00

表16 最终产品数质量平衡表

产品

名称小时产量/t 灰分Ad/%水分Mt/%

134.06657337.340461171.407034

12.2443.6679.7117.82

13.5346.1179.2220.41

19.61A自然级A破碎级19.4216.097.6023.6918.87B自然级B破碎级15.9745.3318.8164.14

14.4915.2517.72

91021.8424.2219.0321.4117.1619.5414.9617.3412.1914.5712.4914.8718.03

20.41

919.6119.4218.8715.9714.4915.2517.30

合（100%)

综合K 1+K 2=28.71

Ad%

校正前校正后校正20.41-18.03=2.38

+K2=71.29%

Ad %

921.58

20.2219.06

18.607816.20

14.50

87.8315.1818.19

87.83

r 9101.25 4.4910.049.034.4915.631.5525.941.4038.834.4676.4423.1826.0023.1826.000.5122.2223.6925.92

r 9107.89 5.4536.318.639.9215.572.7724.972.2534.223.1569.5062.3014.0662.3014.061.8420.0764.1414.23

r 9109.14 5.320.144423

10.5546.358.710.73220953.4914.4115.5911.78607

0.22769516.634.3225.320.068204 4.983.6535.99

0.057661 4.21

50-0.5mm

灰分产率综合K1+K2=87.83%产率%Ad

%综合K1+K2=23.69%产率%Ad

%产率%综合K1+K2=64.14%Ad

%1+K 2=100.00%

Ad %

7.6173.57校正数据

10.1485.4817.30A 筛=18.06A浮=17.3061.78

100.00

85.4817.30A+1.8=73.57%2.3520.53A-1.8=11.79%87.8317.38

△　=0.7618.06

1.230172

91.09

918.0519.5535.6752.9462.5473.57

产率%灰分%产率%灰分%密度级1

345678-1.310.55 5.3210.55 5.32100.0018.05 1.31.3-1.453.498.7164.038.1589.4519.55 1.49.00 1.4-1.516.6315.5980.679.6935.9635.67 1.523.75 1.5-1.6 4.9825.3285.6510.6019.3352.94 1.665.00 1.6-1.8 4.2135.9989.8611.7914.3562.54 1.718.05

+1.810.1473.57100.0018.0510.1473.57合计100.0018.05煤泥 2.3520.53总计

100.00

18.11

产率%灰分%产率%灰分%产率%灰分%密度产率5.27 5.3210.55 5.320.0018.05 1.389.4537.298.7164.038.1510.5519.55 1.435.9772.3515.5980.679.6964.0435.67 1.519.3383.1625.3285.6510.6080.6752.94 1.614.3587.7635.9989.8611.7985.6562.54 1.810.1494.9373.57

100.0018.0589.8673.570.00

γδ±0.1（去矸）=γδ±0.1（不去矸）×100%/（100%-γ＞1.8）=17.0%×100%/（100%-10.14%) =1δ±0.1的含量为18.92%，得知为中等可选煤

18.91832

附表2 可选性曲线坐标数据计算基元灰分曲线浮物累积曲线沉物累积曲线密度曲线物累计

Ad %

附表1 50-0.5mm粒度可选性曲线

1= 1.45δ2=1.76

Ad %密度级

产率%

灰分%累积

浮物沉物

δ±0.1含量

ζr r本Ad

r r本Ad 91011121314153.190.34 1.00 5.3210.2118.36 5.3227.6614.7943.848.7138.6869.568.7163.6510.5236.2115.59 6.0110.8015.5986.45 4.0912.1125.320.64 1.1525.3297.74 3.018.9235.990.070.1335.9999.99 1.00 2.9673.570.000.0073.57—33.74100.00

17.9755.61

100.00

9.06

1.368矸石0.14-0.161.444中煤0.16-0.18

1.672

1.824跳汰再选0.18-0.2

ζr r本Ad

r r本Ad 91011121314151.980.020.04 5.320.98 2.16 5.3223.4910.3021.258.7133.5473.998.7160.7921.8545.0915.5914.0931.0915.5985.779.7920.2225.32 1.62 3.5925.3297.87 6.2312.8535.990.140.3035.9999.990.270.5573.570.000.0073.57—48.45100.00

19.0345.32

100.00

12.42

R全Ad%44.289.0614.7112.4258.999.9015.7219.038.4867.742.0250.1010.5064.352.0620.536.1520.45

表 I=0.16

中煤段δ2　=1.41 0.18精煤精煤中煤段δ2=1.44

品实际综合平衡表

1.88(53.41)

12.1715.18

22.2611.34

100.0018.1118.11

5710

含量

64.03

70.12

21.61

4.21

密度产率%

1.335.97

1.429.88

1.578.39

1.690.25

1.795.79

7.0%×100%/（100%-10.14%) =18.92%

δ±0.1临近物曲线±0.1含量

δ2=1.36I2=0.20

δ1=1.81平均密度t值分配率t值分配率

t值-1.3 1.2-5.03283 2.41651E-07-2.202430.013817317

-5.896111.3-1.4 1.35-2.673840.003749435-0.105560.45796725

-3.537121.4-1.5 1.45-1.614450.0532144540.8361180.798455754-2.477741.5-1.6 1.55-0.768550.221079367 1.588030.943860268-1.631841.6-1.8 1.70.2480350.597946154 2.4916640.993642683

-0.61525+1.8 2.1 2.1533190.984353208 4.185250.999985757

1.290035

1.368

1.444

1.672

1.824δp为实际分选密度，它与可选性曲线上查得的理论分选密度δi可以参考以下指标选用：

中煤段：δp=δi-（0.05～0.1）δp＜δi；

矸石段：δp=δi+（0.1～0.2）δp＞δi ；

根据跳汰选I值参考表选取I=0.18。

近似公式t=（1.553lg（（δe-1）/（δp-1）））/I

再

选

δ1=1.66 I1=0.18

I1=0.18δ2=1.43I2=0.20分配率t值分配率1.86085E-09-2.868210.002064 0.000202256-0.771330.220257 0.0066108960.1703470.567632 0.0513568760.922260.821803 0.269194861 1.8258930.966067 0.901480753 3.519480.999784