Lotus-type mine explosion door

Abstract

The invention discloses a lotus-type mine explosion door. The lotus-type mine explosion door comprises a base frame and four explosion door bodies, wherein the explosion door bodies are composed of four sectorial explosion door doubling plates, oil cylinders are rotationally installed on one sides of the upper parts of the explosion door doubling plates, the base frame is installed at the upper part of a ventilation shaft, a circle of explosion door foundation is arranged on the periphery of the ventilation shaft in the circumferential direction, and the bottom end of the base frame is fixedlyconnected with the explosion door foundation. Sealing is conducted by adopting a piece of rubber, the sealing surface is wide, the sealing can be effectively conducted, no air leakage is ensured, theproblems of liquid volatilization and freezing in winter of liquid sealing are overcome, the influence of seasons on the sealing is small, liquid is not needed to be supplemented, the oppositely-opening structure of four pieces of explosion door doubling plates are adopted, the opening is easier, when in gas explosion, it is guaranteed that the explosion door cannot be blown up, and the guaranteeis provided for quick reset; and the explosion door doubling plates can be freely opened and closed, the explosion door doubling plates are not easily fly out by a gas flow when in explosion, the explosion door doubling plates are not easy to damage and can be repeatedly used, and the cost is saved.

Description

technical field [0001] The invention relates to an explosion-proof door, in particular to a lotus-shaped mine explosion-proof door, which belongs to the application field of mines. Background technique [0002] The mine mining depth and mining output have been greatly improved, and the gas in the mining face and return airway is increasing. The safe operation of the mine ventilation system is the fundamental premise to ensure the safety of coal mine production. For high gas mines, it is particularly important to ensure ventilation safety. In the primary energy consumption of my country's sustainable economic development, coal will still be the main energy source, its output will continue to grow, and safe production is becoming more and more important. The mine ventilation system plays a pivotal role in the safe production process, and the explosion-proof door at the wellhead is a key link in the ventilation system. The old explosion-proof door has not changed for many year...

AI Technical Summary

Problems solved by technology

[0013] The purpose of the present invention is to provide a lotus-shaped mine explosion-proof door, which can solve the technical problems that the existing explosion-proof doors have low safety performance, cannot be freely opened and closed according to actual needs, cannot be reused, and have high cost

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