Dustproof and accumulated-water-proof air door for coal mine main ventilation system

Abstract

The invention discloses a dustproof and accumulated-water-proof air door for a coal mine main ventilation system, and relates to the technical field of mine ventilation equipment. The dustproof and accumulated-water-proof air door for the coal mine main ventilation system is characterized in that a side-opening air door is arranged in an air passage, and a plurality of traveling wheels are arranged at the top of the air door; a rack with the tooth surface facing downwards is arranged at the bottom of the side-opening air door, and an air door external box body is rotationally connected with a tail gear engaged with the rack; the tail gear is connected with a transmission device used for driving the side-opening air door to move in a horizontal reciprocating mode; a dustproof device is arranged on the inner side of the bottom of the air door external box body, and a manual driving device for driving a dustproof shaft to rotate is arranged in a transmission box; and a drainage device is arranged at the bottom of the air door external box body and comprises a drainage groove and a drainage groove eddy current heating device. The problems that as for an existing air door, dust is accumulated and is difficult to clear, and accumulated water is not prone to being discharged are solved.

Description

Technical field [0001] The present invention relates to the technical field of mine ventilation equipment, and more specifically, it relates to a dust-proof and water-repellent air door used in a coal mine's main ventilation system. Background technique [0002] The coal mine automatic damper is a damper for the main ventilator that controls the ventilation volume and direction of the input coal mine underground, cuts off the air flow, and prevents the ventilation system from being disordered. The main fan of the coal mine plays an important role in the safety of coal mine production. It is responsible for the important functions of conveying fresh air underground, discharging dirty wind and dust, and ensuring safe production. The national coal mine safety regulations require that each mine’s main ventilator be used and prepared. In order to facilitate the switching of the operation of the two fans, different types of dampers are installed between each fan and the air tunnel for...

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Problems solved by technology

[0005] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a dust-proof and water-proof damper for the main ventilation system of coal mines, so as to solve the problems existing in the existing damper that the dust accumulation is difficult to clean and the accumulated water is not easy to discharge.

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