High-reliability synchronous balance weight cover type mine explosion door

Abstract

The invention discloses a high-reliability synchronous balance weight cover type mine explosion door. The high-reliability synchronous balance weight cover type mine explosion door comprises an anti-explosion cover of a traditional synchronous balance weight cover type explosion door, a well body, direction changing frames, a balance weight frame, a balance weight body, a guide system, a buffer device, a condensation water guide plate, a steel oil trough and the like, wherein the guide system, the buffer device, the condensation water guide plate and the steel oil trough are developed in orderto improve reliability of the synchronous balance weight cover type explosion door. On the basis of analyzing reliability of the traditional synchronous cover type explosion door, in order to improvereliability of motion of the anti-explosion cover and the balance weight body, the guide system of the anti-explosion cover and the balance weight body is additionally mounted; in order to reduce thepossibility that the anti-explosion cover is blown off due to exploding and reduce impacting generated when the balance weight body falls to the ground, the buffer device of the anti-explosion coverand the balance weight body is additionally mounted; and in order to avoid the phenomenon that air leaking and failures of the anti-explosion cover are caused by rubber aging and improve the strengthand rigidity of the anti-explosion cover, sealed rubber connection between sector blocks of the anti-explosion cover is changed into continuous welding. The synchronous balance weight explosion door has higher reliability.

Description

technical field [0001] The invention relates to the technical field of mine ventilation systems, in particular to a highly reliable synchronous counterweight cover type mine explosion-proof door. Background technique [0002] The explosion-proof door is one of the most important safety components of the mine ventilation system. It is a special sealing device installed in parallel with the main ventilator at the head of the return air shaft. During normal ventilation, the explosion-proof door remains closed to prevent short-circuiting of the air flow; when the main fan stops running, the explosion-proof door opens automatically, so that the mine with a certain natural wind pressure can be ventilated by natural wind pressure; when an explosion occurs underground, the explosion-proof door is impacted by the gas , automatically open to protect the fan from damage. [0003] The main failure modes of traditional cover-type explosion-proof doors are as follows: because there is no...

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Problems solved by technology

[0003] The main failure modes of traditional cover-type explosion-proof doors are as follows: because there is no limit and guide device, when an explosion occurs in the mine, the explosion-proof cover may be blown off, causing the explosion-proof cover to be distorted, deformed, or even damaged, and the explosion-proof cover may not be reset correctly; When the explosion-proof cover is opened, the counterweight will have a huge impact on the ground; during long-term use, the rubber between the sectors of the explosion-proof cover will age, resulting in air leakage and the explosion-proof cover cannot be opened; the temperature in the well is higher than the air temperature, and the inside of the explosion-proof cover A large amount of condensed water accumulates on the surface and flows into the oil tank, which will replace the sealing oil in the oil tank with condensed water. The evaporation or freezing of the condensed water will cause the explosion-proof cover to fail to open; the well body is poured with cement, so that the sealing oil in the oil tank will seep Leakage, the leakage of sealing oil will cause the explosion-proof cover to fail to open

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