综采工作面新型风助喷雾降尘装置研制及应用

以平山煤矿31016工作面为研究背景,针对该工作面粉尘浓度较大,普通喷雾降尘装置无法有效降低粉尘浓度等问题,研制出一种新型液压支架风力负压喷雾降尘装置和采煤机湿式喷雾降尘器.通过数值模拟以及现场试验,该装置能够促使喷雾范围有效扩大,喷雾浓度明显上升,综采工作面粉尘浓度得到有效控制,平均降尘率最终达到85％以上.

Development and Application of New Wind-assisted Spray Dust Control Device in Fully Mechanized Mining Face

Taking the 31016 working face of Pingshan Coal Mine as the research background,aiming at the problem that the dust concentration of the working flour is large and the ordinary spray dust reduction device can not effectively reduce the dust concentration,a new type of wind powered negative pressure spray dust reduction device and a shearer wet spray dust collector are developed.Through numerical simulation and field tests,the device can effectively expand the spray range and spray concentration.The dust concentration of fully mechanized working face was effectively controlled,and the average dust reduction rate finally reached more than 85%.