论文部分内容阅读
1、前言随着煤矿采掘工作面移向深部,不但通风、运输方面增加了困难,而且瓦斯涌出量显著增大起来,局部通风使用乙烯树脂布加工的风筒成为通常的方法。上述风筒在材料特性上有利方面虽多,但由于在防静电及防火方面有困难,所以耐静电风筒——以难燃性尼龙为基布,以乙烯树脂加工的风筒,现在被推荐出来,并已相当普及起来了。但是,关于这种风筒在受到煤尘等的接触摩擦时产生静电及其带电性方面还不明确。近几
1, Foreword With the coal mining face moving deeper, not only ventilation, transportation increased difficulties, and gas emission significantly increased, the local ventilation of the use of vinyl cloth processing hairdryer become the usual method. Although the above air duct has many advantages in terms of material properties, it has been recommended as an anti-static air duct due to its antistatic and fireproof properties - an air duct based on a flame-retardant nylon base cloth and a vinyl resin-processed air duct Out, and has become quite popular. However, it is unclear whether such a hair dryer will generate static electricity and its chargeability when it receives frictional contact with coal dust or the like. Recent