The transportation roadway in 3603 working face of A Coal Mine in Shanxi Province is a semi-coal rock roadway,Due to various factors such as large cutting section,fast speed,and low water content of coal and rock during cutting,the high concentration of dust in the front face of excavation restricts the rapid excavation of tunnels to a certain extent.Therefore,on the basis of analyzing the driving conditions and dust sources of the transport roadway,it was proposed to comprehensively use the cutting drum spray system,airborne dust control and dust removal system,and air flow purification device for dust control,and analyze the layout of each dust suppression system and device in detail.After engineering application,the mass concentration of total dust and respiratory dust at the driver's position in the transportation roadway excavation of 3603 working face decreased to below 55.99,31.32 mg/m3,respectively.The high dust mass concentration and adverse environmental problems in the excavation face were significantly improved,and the application effect of the comprehensive dust prevention system was significant.
关键词
半煤岩巷道/综掘/防尘系统/粉尘治理
Key words
semi-coal rock roadway/fully mechanized excavating/dust removal system/dust control
维普
万方数据