Research on process and application of airborne synchronous hydrogen sulfide absorption equipment in mining face
In view of the problem that a large amount of hydrogen sulfide gushes out during coal cutting in the mining face,which seri-ously endangers the health of workers,taking No.1303 working face of Jinniu Coal Mine as an example,the underground airborne syn-chronous hydrogen sulfide treatment device was used to lead the hydrogen sulfide at the head and tail of the shearer to the alkali tank at the moment of coal cutting and coal breaking.The spray nozzle installed at the alkali tank can quickly eliminate hydrogen sulfide.The research results show that this set of airborne synchronous hydrogen sulfide elimination device can not only control the hydrogen sulfide produced by the shearer in the process of coal cutting,but also enhance the flow speed of air flow near the head and tail of the shearer,prevent the accumulation of hydrogen sulfide at the head and tail,and improve the safety of coal cutting at the working face of the shear-er,so as to reduce the concentration of hydrogen sulfide in the working face.The test at No.1303 working face shows that the average concentration of hydrogen sulfide in the mining face is reduced from 125 × 10-6 to 50 × 10-6,with a reduction of up to 60％,by using the airborne synchronous hydrogen sulfide treatment device.The hydrogen sulfide treatment effect in the mining face is remarkable,which greatly reduces the labor cost and engineering construction input,and ensures the safe and efficient production of the mining face while pumping hydrogen sulfide.
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