Underground coal mine coal seam gas-bearing capacity and pressure rapid measuring instrument and measuring method

Abstract

The invention provides an underground coal mine coal seam gas-bearing capacity and pressure rapid measuring instrument and measuring method, the underground coal mine coal seam gas-bearing capacity and pressure rapid measuring instrument comprises a main machine and a coal sample tank, the main machine comprises a measuring pipeline, a flow sensor, a display screen, a keyboard, a battery and a charging data sharing serial port and a controller, the flow sensor is set on the measuring pipeline, one end of the measuring pipeline is connected to the coal sample tank through a conveying pipeline,the controller is in signal connection with the flow sensor, the display screen, the keyboard and the charging data sharing serial port, and the battery is in connection with the charging data sharingserial port. The underground coal mine coal seam gas-bearing capacity and pressure rapid measuring instrument has the advantages of convenient operation and strong practicability, coal seam gas pressure P and coal seam true gas content W can be accurately measured in a site of an underground coal mine within 10 min only by sieving of 50 g of a coal sample of 1 to 3 mm, the measurement period of the coal seam gas pressure P and the coal seam true gas content W can be greatly shortened, and the principle and the method of the coal seam gas pressure and the coal seam gas content can be revolutionized.

Description

technical field [0001] The invention relates to the technical field of measuring basic parameters of coal seam gas, in particular to a rapid measuring instrument and a measuring method for coal seam gas content and pressure in an underground coal mine. Background technique [0002] Coal seam gas basic parameters are the basis of all mine gas prevention and development work. Coal seam gas content and pressure are the two most important basic parameters of coal seam gas, which can be directly used for regional and local outburst risk prediction and regional outburst prevention in underground coal mines. It can be used to test the effect of the measures, and can also be used to judge whether the gas drainage is up to standard in the mining face of outburst and high gas coal seam (including Shimen, coal mining face in the well shaft, etc.). A large number of scholars at home and abroad have studied the mechanism of coal and gas outburst. It has been shown that coal seam gas pres...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a rapid measuring instrument and method for measuring the gas content and pressure of the coal seam under the coal mine, so as to solve the problem that it is difficult to accurately and efficiently measure the gas content and pressure of the coal seam under the coal mine

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