Throttling expansion type gas dynamic and static exchange detection and treatment device for underground coal mine

Abstract

The invention discloses an underground coal mine throttling expansion type gas dynamic and static exchange detection and treatment device which comprises a positioning frame, a dynamic and static exchange type gas ventilation detection mechanism, a throttling expansion type environment treatment mechanism and a negative pressure recovery mechanism. The dynamic and static exchange type gas ventilation detection mechanism, the throttling expansion type environment treatment mechanism and the negative pressure recovery mechanism are fixedly arranged on the side wall of the positioning frame. The invention belongs to the technical field of coal mine safety equipment, and particularly provides a throttling expansion type gas dynamic and static exchange detection and treatment device for an underground coal mine, which applies a reverse action principle to detection of a mine roadway ventilation effect and gas accumulation, remarkably reduces human input and gas detection risks, and improves the detection efficiency. The automation degree and the detection accuracy of equipment are improved; the intermediary principle and the throttling expansion effect are applied to dust falling treatment and environmental management of the mine laneway, the probability of accidents caused by dust accumulation of a mine is remarkably reduced, and the working environment of the mine is improved.

Description

technical field [0001] The invention belongs to the technical field of coal mine safety equipment, in particular to a throttling expansion type gas dynamic and static exchange detection and treatment device for underground coal mines. Background technique [0002] In the process of coal mining, there will be a certain amount of gas inside the coal mine. The main component of the gas is methane. When the gas in the coal mine reaches a certain concentration, it is easy to cause an explosion, which is a great safety hazard. Mine ventilation system As the lifeline of the coal mine, it can directly control the gas and dust in the mine roadway. However, the ventilation system is poor in the corners of the coal mining face, the high top of the excavation face, the blind road where the wind is stopped, and the cutting place of the excavator. Often, it does not act effectively on the above-mentioned areas so that the gas rapidly accumulates in the above-mentioned areas. [0003] Exi...

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Problems solved by technology

[0002] In the process of coal mining, there will be a certain amount of gas inside the coal mine. The main component of the gas is methane. When the gas in the coal mine reaches a certain concentration, it is easy to cause an explosion, which poses a great safety hazard. Mine ventilation system As the lifeline of the coal mine, it can directly control the gas and dust in the mine roadway, but the upper corner of the coal mining face, the high top of the excavation face, the blind alley where the wind is stopped, and the cutting place of the excavator are poorly ventilated. Often cannot effectively act on the above-mentioned areas so that the gas accumulates rapidly in the above-mentioned areas

[0003] Existing detection technologies during and after coal mine gas treatment mainly include preset fixed monitoring point detection and manual assisted mobile detection. The detection range of preset fixed monitoring points in mine roadways is limited, especially in poorly ventilated areas. When the gas is concentrated in the sky, it is easy to miss the detection of the monitoring points. Manually assisted mobile detection needs to rely on manual hand-held or mobile detection equipment to carry out gas detection in coal mines, which has a great impact on the physical and mental health of operators.

[0004] At present, there is a lack of a device for detecting underground gas control in coal mines, which can automatically judge the effect of gas ventilation control without manual downhole operation, and realize dynamic and static exchange gas detection for various poorly ventilated areas in mine roadways. The gas in each detection area is cooled and purified, so that the mine construction area maintains a good construction environment, and the gas in the gas accumulation area can be recovered, so that the gas can be turned into a profit, and the harm of gas and dust to the coal mine can be significantly reduced

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