我国现在使用的防爆盖在数次井下爆炸中都出现被炸飞现象,导致风机虽然完好,但不能尽快恢复通风,造成井下通风絮乱使得事故扩大,伤亡人数骤增。因此备用防爆盖的设计与开发应保证既不影响现有防爆盖的基本功能,又保障防爆盖在爆炸冲击波释放以后备用防爆盖能够快速自动复位。 Explosion-proof covers now used in our country have been blown up in several underground explosions, causing the fan to be ventilated as soon as possible, resulting in the accidental flooding of the underground ventilation causing the number of casualties to surge. Therefore, the design and development of spare explosion-proof covers should ensure that they will not affect the basic functions of existing explosion-proof covers, and also ensure that the spare explosion-proof covers can quickly and automatically reset after the release of explosion shock waves.