Vertical air shaft double-door type explosion-proof system
An anti-explosion system and vertical air shaft technology, which is applied in mine/tunnel ventilation, mining equipment, mining equipment, etc., can solve the problems of air flow short circuit, low anti-explosion ability, accident expansion, etc., and achieve reduced sealing difficulty and high anti-explosion performance and reliability improvement
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[0033] The present invention will be described below with reference to the accompanying drawings and specific embodiments.
[0034] A vertical air shaft double-door explosion-proof system, such as figure 1 As shown, it is mainly composed of a gable body 2, a door body 3, a buffer frame 4, a flexible buffer wall 5, a door shaft hinge 6, a supporting beam 7, a pulley frame 8, a wire rope 9, and a variable mass counterweight 10. The gable body 2 is a triangular steel structure wall body, or a steel-concrete cast wall body, which is used to support the door body 3, and sealing strips 12 are laid on the slopes on both sides thereof. The door body 3 is composed of a door body frame and a door panel. The door body 3 is installed on the buffer frame 4 through the door shaft hinge 6, such as Figure 5 As shown, a flexible buffer sleeve 6-2 is arranged between the shaft seat 6-1 and the bearing bush 6-3 of the door shaft hinge 6, and the buffer frame 4 is composed of 6 beams, 4 long c...
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