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1.序言 生产过程的机械化,使生产不断集中、劳动强度不断增大,因而使矿井空气中的粉尘大量增多。 粉尘的大量堆积是危险的,它不仅可能发生爆炸,而且还危及人体健康。此外,工作条件的恶化也必然使劳动生产率下降。 不久的将来,由于井巷空气中的粉尘过量将极大地影响着采掘工作的发展。所以,减少矿井粉尘问题已成为采矿部门最困难、最迫切需要解决的问题之一。 目前,水是广为使用的降尘物质。可将水注入煤体,打钻时可用各种各样的形式和方法湿润钻孔,代替炮泥和在一切产生粉尘的地方降尘。用水降尘这一方法之所以使用得如此之广泛,是由于:
1. Preface The mechanization of the production process, the continuous concentration of production, increasing labor intensity, resulting in a large number of mine dust in the air increased. The accumulation of dust is dangerous, it can not only explode, but also endanger human health. In addition, the deterioration of working conditions will inevitably reduce the productivity of labor. In the near future, due to excessive dust in the air of mine shaft, the development of extractive work will be greatly affected. Therefore, reducing mine dust has become one of the most difficult and urgent problems to be solved in the mining sector. At present, water is widely used as a dust-reducing material. Water can be injected into the coal and drilling can be used to wet the borehole in a wide variety of forms and methods, replacing shotgun and dusting in all areas where dust is generated. This method of dusting water use is so widespread because: