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通过研究降尘泡沫的特点和转载点粉尘的产生机理,有针对性地设计了泡沫降尘的工艺流程。最后根据平顶山一矿明斜井机头转载点的实际情况,构建了转载点泡沫降尘系统,通过在煤仓上方安装能产生大角度的扇形泡沫喷头,覆盖产尘点,阻断粉尘扩散通道,取得了良好的效果,数据显示,泡沫降尘效率可达89.73%,对呼吸性粉尘的降尘效率也达到了83.75%,同时,降尘后悬浮空气的平均全尘浓度为6.32mg/m3,呼吸性粉尘平均浓度为4.64mg/m3,符合国家标准,降尘效果非常明显。
By studying the characteristics of dust-reducing foam and the generation mechanism of dust at the transfer point, the technological process of foam dust-reduction is designed. Finally, according to the actual situation of the head transfer point of Pingdingshan No. 1 inclined shaft, the paper builds a foam dust removal system at the transfer point. By installing a fan-shaped foam nozzle with a large angle on the top of the coal bunker, The data show that the efficiency of foam dust reduction can reach 89.73% and the dust reduction efficiency of respiratory dust reaches 83.75%. Meanwhile, the average total dust concentration of suspended air after dusting is 6.32mg / m3, and the respirable dust The average concentration of 4.64mg / m3, in line with national standards, the dust effect is very obvious.