风筒逆向隔断装置在大林煤矿的应用与改进

摘要

The paper introduces the innovation and transformation on reversible isolating device of air pipe in reversed air valve wall pier, which improves the reliability and reduces the failure probability of reversible isolating device,increasing the safety coefficient of reversely isolating the air flow to the utmost in case of coal and gas outburst.%大林煤矿在对经过反向风门墙垛的风筒逆向隔断装置进行革新改造后，增强了逆向隔断装置的可靠性，降低了逆向隔断装置的破坏率，从而最大限度地提高了发生煤与瓦斯突出时逆向隔断风流的保险系数。