论文部分内容阅读
矿井反风,是防止矿井事故扩大、确保井下人员安全的一项极其重要的安全措施。矿井反风只能在进风井口、进风井筒、井底车场及其硐室等进风侧发生火灾或在上述地点发生煤尘爆炸的特殊条件下才能使用。反风的作用是为了防止烟流和有毒气体进入采掘工作面;在上述的特殊条件下,及时迅速地进行金矿井反风,就能使井下人员处于新风流中,迅速撤退而免受其害。我国历次颁布的《煤矿安全规程》或《化工矿山安全规程》(以下简称规程)中,都有明确的矿井反风规定。但是《规程》中没有针对各种不同条件的矿井来划分反风量的等级,而是笼统地规定:反风后的风量不得小于原风量的60％。为了达到这个规定的标准,就限制了某些反风方式(如反转反风方式)的使用,因而现场中多数矿井只好采用绕道式进行反风。这种反风方式需要构筑70
Anti-wind mine is to prevent the expansion of mine accidents, to ensure the safety of underground personnel is an extremely important safety measure. Anti-wind mine shaft can only be in the intake wellhead, intake shaft, bottom of the pit and its entrance room side of the wind side of the fire or in the above-mentioned locations under the special conditions of coal dust explosion can be used. The purpose of the anti-wind is to prevent smoke and toxic gases from entering the mining face. Under the special conditions mentioned above, timely and promptly carrying out the anti-wind of the gold mine can make the underground personnel in the fresh air flow and quickly retreat from the mining face . China has promulgated the “coal mine safety regulations” or “chemical mine safety regulations” (hereinafter referred to as rules), there is a clear anti-wind mine regulations. However, the “Regulations” do not have different levels of mine for the classification of anti-wind capacity, but generally provides that: the amount of wind after the anti-wind shall not be less than 60% of the original amount of wind. In order to meet the stipulated standard, the use of certain anti-wind modes (such as reverse wind and anti-wind mode) is limited. Therefore, most of the mines in the scene had to adopt a bypass type to carry out the anti-wind operation. This style of anti-wind needs to be constructed 70