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分析了煤矿现有回风立井防爆盖存在的漏风、密封液选择困难和启闭不便等问题及其原因,并针对这些问题对防爆盖的结构进行了改进性设计,旨在提高煤矿风井防爆盖的安全可靠性。
The existing air leakage, sealing liquid selection difficulty, inconvenient opening and closing of the existing blasting gas shield in coal mines are analyzed and the reasons for the problems are also analyzed. The structure of the explosion-proof covering is improved for these problems so as to improve the explosion proof performance of coal mine shafts Cover the safety and reliability.