Application of Negative Pressure Ventilation and Dust Removal System for Gas Drilling
Based on the technical problems such as the waste of water,poor dust removal effect and low safety factor when using traditional air-water jet dust removal device to reduce the dust of coal seams produced by drilling construction in the process of coal mine gas extraction drilling,BaiDong Mining Service Team 2 designed a set of gas drilling negative-pressure ventilation and dust removal system by technical research,which is composed of aperture collector,dust collector,dust bag and ancillary equipment,etc.Through the actual application effect in the field,the system was found to be effective.The system is mainly composed of hole collector,dust collector,dust bag and supporting equipment,etc.Through the actual application effect in the field,the dust removal rate of the drill hole is increased to 96％after the system is put into use,and the rate of hole formation is increased to more than 88％,which has achieved remarkable application results.
gas extraction drillingdust removal systemstructureprinciple
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