Coal seam crushing and desorbing gas anti-blocking and desorbing amount automatic metering device

Abstract

The invention relates to a coal seam crushing and desorbing gas anti-blocking and desorbing amount automatic metering device, and belongs to the field of coal mines. The device comprises a coal samplecrushing and anti-blocking system, a gas filtering and drying system and a gas volume data acquisition instrument; the coal sample crushing and anti-blocking system comprises a sealed crusher, a gascollecting pipe communicated with the crusher and an anti-blocking mechanism arranged in the gas collecting pipe and used for preventing pulverized coal from being blocked, and a crusher used for crushing a coal sample is arranged in the crusher; the gas filtering and drying system comprises a sealed gas collecting bottle, the gas collecting bottle is communicated with the gas collecting pipe, andfiltrate is contained in the gas collecting bottle so as to filter pulverized coal in gas from the gas collecting pipe; the gas collecting bottle is further communicated with a gas outlet guide pipe,a solid drying agent and a gas flow meter are sequentially arranged on the gas outlet guide pipe in the flow direction, and the gas flow meter is connected with a gas volume data acquisition instrument. The gas loss in the crushing process is reduced, impurities in the gas are removed, and the test accuracy and the data reliability are improved.

Description

technical field [0001] The invention belongs to the field of coal mines, and relates to a coal seam pulverization desorption gas anti-blocking and desorption automatic metering device. Background technique [0002] Gas is one of the major disasters and safety hazards in coal mines, and the prevention and control of gas in the process of coal mining is the most important thing to ensure the safety of coal mine production. Since parameters such as the gas content of the coal seam are necessary parameters required by various technical methods in the process of gas prevention and control, obtaining effective basic parameters of the original coal seam gas through different technical methods can ensure the normal progress of gas prevention and control work and promote the development of coal mines. Efficient, safe production, and the implementation of various technical methods for gas prevention and control work provide a basis. [0003] In order to obtain the parameters of coal ...

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Problems solved by technology

[0004] In view of this, the object of the present invention is to provide a coal seam crushing and desorption gas anti-blocking and desorption automatic metering device to solve the problem of low accuracy of test data existing in coal seam crushing and desorption gas

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