Auxiliary anti-explosion door system for wind guide tunnel of coal mine air shaft

Abstract

The invention discloses an auxiliary anti-explosion door system for a wind guide tunnel of a coal mine air shaft. The auxiliary anti-explosion door system is arranged on a top plate of a gate section of the wind guide tunnel and comprises a base, supporting strips, a door body, stand columns, a side buffering mechanism, a supporting rod mechanism, a top buffering mechanism and a top cover, the base is fixed to the top plate of the wind guide tunnel, the base is of a plate-shaped structure with rectangular explosion venting holes formed in the middle, a plurality of supporting strips are arranged in the rectangular explosion venting holes, the door body is located at the upper ends of the rectangular explosion venting holes, a plurality of round through holes are evenly distributed in the door body, an explosion-proof film is pasted on the door body, the four stand columns are perpendicularly fixed to the base, the tops of the stand columns are fixedly connected to the top buffering mechanism, the top cover is arranged on the stand columns in a penetrating and sleeve mode and installed at the lower end of the top buffering mechanism through the supporting rod mechanism, and the side buffering mechanism is fixed to the base and located at the side end of the door body. The auxiliary anti-explosion door system is good in explosion venting assisting effect, simpler in overall structure, lower in manufacturing, installation and maintenance cost and easy to apply and popularize.

Description

technical field [0001] The invention relates to the technical field of coal mine safety, in particular to an auxiliary explosion-proof door system used in a coal mine air shaft guide tunnel, which is used to reduce the explosion impact suffered by the main ventilator at the coal mine face. Background technique [0002] The main ventilator on the ground of the coal mine is responsible for delivering fresh air to the underground and discharging toxic and harmful gases. It is called the "lung of the mine". Its continuous, safe and reliable operation is related to the safety of the entire mine. In order to protect the main ventilator from being damaged by the shock wave of the underground explosion, the main ventilator should usually be arranged on the side of the wellhead of the air shaft, and communicate with the air shaft through a branch roadway called the air guide tunnel, and an explosion-proof Door. When a gas or coal dust explosion occurs underground, when the explosion...

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Problems solved by technology

But for a long time, it has not attracted people's attention. This method, which is expected to significantly improve the safety protection level of the main ventilator, has not been applied, and there are few specific and feasible technical implementation plans.

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