露天矿山运输路面复合抑尘剂的研究

Research on complex dust suppressants for transport roadways in open mines

针对露天矿山运输路面的扬尘问题,对复合抑尘剂进行了研究及现场应用.通过理论分析和实验,研制出两种性能优良的复合抑尘剂,并对这两种抑尘剂进行了性能测试和对比分析.采用FLUENT软件,对露天矿山运输路面的粉尘运移规律进行了数值模拟,确定了最佳粉尘监测点.现场实验表明,本文研制的复合抑尘剂能使粉尘质量浓度控制在4mg.m-3以下,有效抑尘时间为6 h.

Aimed at dust raising on transport roadways in open mines,the complex suppressant was researched and applied in practice.Two excellent complex suppressants were developed through theoretical analysis and experiments,and a comparison was made between their performances.The moving rules of dust on transport roadways in open mines were simulated by using FLUENT software,and the most appropriate area was determined for dust monitoring.Practical applications show that by using the complex suppressant the mass concentration of dust is below 4 mg·m-3,and the effective time of dust suppression is 6h.