1、34.610.1含量,%40.5 入料灰分,%17.32均方差1.59分选效果作业性质分选密度,Kg/L可能偏差(E),Kg/L0.03处理能力,t/h6001.5不完善度(I)0.06试验历经时间,h4数量效率(1),%99.47备注:分配密度下的总错配物含量(m0),%4.00 等误密度,Kg/L1.494表2 入料和产品的密度分析密度级(Kg/L)精煤中煤产率%灰分%-1.3011.044.5010.654.030.001.3-1.447.559.6565.649.750.2915.171.4-1.4516.4814.4316.030.5919.961.45-1.57.3619.839.
2、2820.395.9023.711.5-1.69.5125.5631.2727.611.6-1.77.0633.4629.7934.891.7-1.86.4440.9325.0742.491.8-2.07.0847.532.00合计100.0015.79表3 分选产品产率计算G0jG1jG2jG0j-G2jG1j-G2j(G0j-G2j)(G1j-G2j)(G1j-G2j)2117.64113.4847.2565.343087.424269.4110.4513.84144.70191.631.463.384.9411.42-21.76-31.27680.38977.72-22.74-29.79
3、677.45887.65-18.63-25.07467.17628.69-7.0850.125229.837130.13注: g01g11表4 平均方差及分配率的计算入料%计算入料离差离方差平均密度(Kg/L)分配率%第一段7.81 0.00 -3.2310.43 1.25 48.14 0.08 48.22 0.68 0.46 1.35 10.59 0.16 10.74 -0.300.09 1.42 1.46 6.81 1.57 8.38 1.02 1.03 1.47 18.77 8.33 -1.181.38 1.55 100.00 7.94 0.88 0.78 1.65 6.68 0.24
4、0.06 1.75 1.89 3.56 2.00 73.35 26.65 17.79 表5 计算入料的生成7.8148.140.0848.229.7610.590.1610.7416.096.811.578.3821.018.337.946.681.89表6 计算入料的可选性浮物累计沉物累计0.1g/L分选密级密级产率4.03 17.32 1.30 56.04 9.76 8.96 92.19 18.44 1.40 75.16 16.09 66.78 10.11 43.96 27.97 1.45 47.40 21.01 11.32 33.22 31.81 1.50 27.45 27.61 83.49 12.95 24.84 35.45 1.60 16.27 34.89 91.43 14.85 16.51 39.41 1.70 14.62 42.49 98.11 16.74 8.57 43.60 1.80 7.63 47.53 表7 错配物的计算占入料%密度(Kg/L)错配物轻产物的沉物重产物的浮物-1.30 65.54 17.39 17.47 7.04 1.81 10.14 18.08 24.76 图一 分配曲线