The Study Of Deep Hole Coal Seam Water Injection In Coal Mining Faces

The paper main research is deep hole coal seam water injection which uses in the experiment mining area .It mainly is in order to solve mine dust to be big, the gas ultra limits in 17228 coal mining faces. After summary seam water injection research history and the main achievement, the article studied the deep hole seam water injection comprehensively the elementary theory. Then mainly introduced deep hole coal seam water injection technology applicated in the mining coal working surface To the deep hole coal seam water injection dust-settling, the preventing and controlling gas and the softened coal body mechanism, has conducted the research, And introduced deep hole coal seam water injection technology and the craft, after analyzed have adopted this technical the effect. Finally has established the deep hole coal seam water injection mathematical model, carries on the value computation simulation and the analysis with the RFPA software .the analysis analogue result chart may obtain the scene implementation plan is correct.The research results show that: The deep hole coal seam water injection technology application has the very good falling dust function, and causes the coal body structure to become loose and easy to shear falls. When coal cutting gushes out part of gas are squeezed out ahead of time in the overhaul class, thus reduced the production class's gas density peak value, reduces number of times which the gas ultra limits.