Respirable dust detection and optimization of dust prevention measures in fully mechanized face of coal mine

Abstract

Abstract With the deepening of coal mining depth, mining scale and mechanization, the widespread use of high-power, high-performance automated coal mining equipment has increased the amount of dust generated in coal mines during various operations, which has seriously affected the coal mines normal mining and the health of miners. In order to study the harm of respirable dust in fully mechanized coal mining face and reduce the degree of dust hazard, individual sampling and fixed-point sampling method were used to detect the contact level of dust in different types of fully mechanized coal mining face in Shaanxi Province. The test results show that shearer drivers, stent workers and other five types of jobs are the most serious in fully mechanized coal mining face. Analyze the reasons for the excessive concentration of dust in different positions, put forward the optimization measures, so as to further improve the efficiency of mine dust control.