Hydrogen sulfide distribution law and foam control technology of fully-mechanized gateway driving face
Liu Kui
Abstract：In order to control the hydrogen sulfide danger from the mine fully-mechanized gateway driving face,based on the site measurement analysis on the hydrogen sulfide distribution law of No.71507 fully-mechanized gateway driving face in Dongshan Mine,a new technical plan with the foam absorption liquid was provided to control the hydrogen sulfide.The paper studied the hydrogen sulfide control mechanism with the foam,the foam generator device and layout method.The result showed that,the foam mass fraction 0.4％,absorption liquid flow 40 l/min and absorption liquid mass fraction 0.8％ were obtained to control the hydrogen sulfide emission from the coal cutting by the seam driving machine in the mine fully-mechanized gateway driving face.The average value of the hydrogen sulfide from the coal cutting was reduced from 73.1× 10-6 to 10.6× 10-6,the hydrogen sulfide absorption efficiency reached to 85.5％ and the good control effect of the hydrogen sulfide danger was obtained.
Keywords：fully-mechanized gateway driving facehydrogen sulfidefoam absorption liquidcoal cutting
Publication Date：2017-01-01
Pages：6( 71-75,82 )