一、前言 随着煤矿采掘工作面的推进,不仅给通风、运输等工作增加了困难,而且瓦斯涌出量也显著增大。通常的解决办法是使用乙烯布风筒进行局部通风。乙烯布风筒在材料性能上有许多优点,但难以解决静电引起火灾的问题。因此煤矿推广一种用防静电、不易燃的尼龙基布加工成的乙烯布风筒。这种风 I. Introduction With the advancing coal mining face, not only to the ventilation, transportation and other work increased difficulties, and gas emission also increased significantly. The usual solution is to use a vinyl duct for local ventilation. Ethylene fabric hairdryer has many advantages in material properties, but difficult to solve the problem of static electricity caused by fire. Therefore, the promotion of a mine with anti-static, non-flammable nylon fabric processed into ethylene cloth hair dryer. This wind