Explosion-proof equipment fixed on lower top plate of coal mine

Abstract

The invention discloses explosion-proof equipment fixed on a lower top plate of a coal mine, and belongs to the technical field of coal mine mining. An explosion suppression assembly is arranged on the bottom surface of a lower top plate assembly, a power linkage assembly is arranged in the explosion suppression assembly, an output end of the power linkage assembly is connected with a cleaning assembly, and an outlet end of the cleaning assembly is connected with a pipeline assembly. According to the equipment, flame-proof powder is continuously filled into a cavity chamber, the flame-proof powder collides with a material dispersing plate at a high speed, the dispersing of the flame-proof powder is facilitated, a rotating frame is driven to rotate, a movable rack drives a eccentric disc tomove, so that an upper transmission gear and a lower transmission gear do reverse rotation action, on one hand, the dispersed flame-proof powder is discharged into air through an exhaust impeller, flame immediately following a shock wave is extinguished, meanwhile, the doped sporadic flame communicates with the flame-proof powder and enters into a flame-proof cylinder, so that the occurrence of subsequent safety accidents caused by explosion is greatly reduced, the safety is improved, and the subsequent working strength is reduced.

Description

technical field [0001] The invention relates to the technical field of coal mine mining, in particular to an explosion-proof device fixed on the roof of a coal mine underground. Background technique [0002] Coal mines are areas where human beings exploit coal resources in coal-rich mining areas, and are generally divided into underground coal mines and open-pit coal mines. When the coal seam is far away from the surface, it is generally selected to excavate the coal by digging the roadway underground, which is an underground coal mine. When the distance between the coal seam and the surface is very short, it is generally chosen to directly strip the surface soil layer to excavate coal, which is an open-pit coal mine. The vast majority of coal mines in my country are underground coal mines. Coal mines include large areas above and below ground and associated facilities. A coal mine is a reasonable space excavated by humans when excavating geological layers rich in coal, u...

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Problems solved by technology

[0003] In the process of coal mining, it is difficult to completely extract the underground gas. When the gas accumulates to a certain amount, it will cause an explosion. At present, an explosion-proof plate is generally installed on the lower roof, but it cannot effectively extinguish the flames generated during the explosion. , the spread of the fire is likely to cause follow-up safety accidents, and the impurities generated in the passage cannot be effectively discharged, which increases the intensity of follow-up work and increases the difficulty of work. equipment

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