Ventilation device for coal mine underground operation

Abstract

The invention discloses a ventilation device for coal mine underground operation. The ventilation device comprises a coal mine well, a ventilation device body is arranged in the coal mine well, an auxiliary supporting device is arranged in the ventilation device body, and an automatic connecting assembly, an automatic sealing assembly and an automatic jointing device are arranged in the ventilation device. The ventilation device is in pipeline connection with a ventilation opening adjusting device, the ventilation device is used for supplying air into the coal mine well, the auxiliary supporting device is used for improving the strength of the ventilation device, and the ventilation device can be rapidly spliced through the automatic connecting assembly, the automatic sealing assembly andthe automatic connecting device. The installation time of the ventilation device is shortened, and the ventilation device can automatically supply the air to areas with the low oxygen content preferentially according to the oxygen content in the area through the ventilation opening adjusting device. The ventilation device for the coal mine underground operation has the advantages of convenience ininstallation, difficulty in failure, being provided with a hydraulic system without discharging hydraulic oil, and capability of preferentially supplying the air to the area with insufficient oxygen.

Description

technical field [0001] The invention relates to the technical field of industrial machinery, in particular to a ventilation device for underground operations in coal mines. 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. [0003] It is troublesome to disassemble and assemble the existing ventilation devices for underground operations in coal mines. When the coal mine collapses, the ventilation pipes are easy...

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Problems solved by technology

[0003] It is troublesome to disassemble and assemble the existing ventilation devices for underground operations in coal mines. When the coal mine collapses, the ventilation pipes are easy to break, causing the trapped people to lose oxygen supply; when the liquid oxygen pipeline is installed, the hydraulic oil needs to be discharged first. The support of the coal mine needs to be disassembled from time to time, and the support is easy to fail, so the coal mine usually uses a poor support device; at the same time, the commonly used ventilation device is used together with a light supply of air in the coal mine, and the area with less oxygen is difficult to be timely oxygen supply

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