在开采急倾斜煤层的矿井中,产生煤尘的主要来源,除回采工作面以外,还有从运输机或工作面往矿车内装煤的地点。在掩护式机组和采煤机上用洒水法洒大量的水时,虽然能防止产生煤尘,但会引起煤严重过湿现象,这必然造成溜煤口卸煤的困难。因此,煤质要变坏,卸煤速度也要降低。在装煤时采用洒水法,不仅不能收到良好效果,而且还降低煤的质量。因此,选择了泡沫抑尘法,在采煤机、掩护机组和刨煤机工作时采用这种方法已取得良好效果。 在奥尔宗尼启则煤炭生产联合公司的某矿井的装煤地点试验了泡沫抑尘法。泡沫抑 In the mining of steep seam coal mines, the main source of coal dust generated, in addition to the mining face, as well as from the transport aircraft or working face to the place where the coal car loading. Sprinkling a large amount of water on sprinkler systems and coal shearer sprinklers can prevent the occurrence of coal dust, but it can cause serious over-wetting of the coal, which inevitably leads to the difficulty of coal unloading at the coal-slitting mouth. Therefore, the quality of coal to deteriorate, coal removal rate should also be reduced. When using coal-sprinkling method, not only can not receive good results, but also reduce the quality of coal. Therefore, the choice of foam dust suppression method, in the shearer, cover unit and plow work with this method has been achieved good results. The foam-suppression method was tested at the coal-loading site at a mine at the coal company Consolidation in Orzignon. Foam suppression