浮选尾煤再选的试验研究
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摘要
浮选尾煤具有高黏度、高灰分且粒度较小的特征,对尾煤进行再选可提高煤炭的利用率。进行了浮选尾煤再选的试验,分析了不同参数对浮选尾煤再选效果的影响程度。认为浮选所用的煤油用量应该控制到600g/mL,煤油用量为120g/L,磨矿时间应该控制在3min。试验发现,对尾煤进行再选得到了较高产率的精煤。
The flotation tailings has the characteristics of high viscosity,high ash content and smaller grain size.The tailings re-election can improve the utilization rate of coal.The test of flotation tailings re-election is conducted.The influence degree of different parameters on the flotation reelection efficiency is analyzed.It is considered that the kerosene flotation dosage should be controlled to 600 g/ml,and kerosene dosage is 120 g/L.Grinding time should be controlled within 3 minutes.The results show that the tailings re-election got higher yield of coal.
The flotation tailings has the characteristics of high viscosity,high ash content and smaller grain size.The tailings re-election can improve the utilization rate of coal.The test of flotation tailings re-election is conducted.The influence degree of different parameters on the flotation reelection efficiency is analyzed.It is considered that the kerosene flotation dosage should be controlled to 600 g/ml,and kerosene dosage is 120 g/L.Grinding time should be controlled within 3 minutes.The results show that the tailings re-election got higher yield of coal.
引文
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[4]郝明景.曙光煤矿选煤厂尾煤压滤系统的改造[J].煤炭加工与综合利用,2017(3):28-29,34.
[2]于跃先,马力强,张仲玲,等.浮选尾煤再选试验研究[J].煤炭工程,2014(4):109-111.
[3]王甲,夏新茹,浑宝炬.尾煤泥加工提质技术改进与应用[J].煤炭技术,2017(4):299-301.
[4]郝明景.曙光煤矿选煤厂尾煤压滤系统的改造[J].煤炭加工与综合利用,2017(3):28-29,34.