A kind of automatic coal seam permeability testing device and method
A testing device and automatic testing technology, which is applied in measuring devices, permeability/surface area analysis, earthwork drilling, etc., can solve the problems of authenticity and accuracy errors, cumbersome and complicated, large scale gap between small coal samples and coal seams, etc. Achieve the effect of improving efficiency and solving cumbersome steps
Active Publication Date: 2021-09-24
CHINA UNIV OF MINING & TECH
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Problems solved by technology
[0004] The traditional method of testing the permeability of underground coal seams in coal mines is very cumbersome and complicated. The multi-step testing process requires multiple sets of equipment to complete. Correspondingly, multiple operators are required to handle it. This runs counter to the trend of automation and intelligence in the mining industry.
In addition, there is a method of testing the permeability of small coal samples in the ground laboratory, but the test devices and methods are of simulation nature, and the test operation is carried out in an off-site environment, and due to the small coal sample and coal seam scale The gap is too large, and there is always a certain error between the authenticity and accuracy of the permeability obtained by this method and the actual situation
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[0014] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0015] Figure 1 to Figure 3 shows a schematic structural view of a preferred embodiment of the present invention, figure 1 and figure 2 A kind of automatic coal seam permeability test device in, comprises piezometric tube 1 and automatic test module, and described automatic test module comprises device casing 24 and is arranged in the gas...
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An automatic coal seam permeability testing device and method, the device includes a pressure measuring tube and an automatic testing module, the automatic testing module includes a device casing and a gas pressure gauge with data recording and transmission functions, and a data recording Gas flow meter, control unit, electromagnetic flow valve and power supply with transmission function, gas inlet, gas outlet, input device, data output interface and display screen are arranged on the shell of the device shell; gas pressure gauge, gas inlet and electromagnetic flow The valves are all connected through pressure-resistant pipes, the gas flow meter is connected with the electromagnetic flow valve and the gas outlet through the pressure-resistant pipe, the control unit is connected with the gas pressure gauge, gas flow meter, electromagnetic flow valve, power supply, input device, data output interface and display The screens are connected by wires; the pressure measuring tube is connected to the gas inlet of the device shell through the pressure tube I. The invention realizes the automatic and precise test of the coal seam permeability, and improves the efficiency of the coal seam permeability test.
Description
technical field [0001] The invention relates to an automatic coal seam permeability testing device and method, belonging to the field of mine safety. Background technique [0002] Coal is the main energy in our country, accounting for about 60% of the primary energy. Gas is an accompanying product in the process of coal mining, and it is one of the main factors that seriously threaten the safe production of coal mines. Gas disasters cause a large number of casualties and huge property losses every year. Draining and utilizing the gas in the coal seam before the mining of coal resources can not only ensure the safe mining of coal resources, promote the utilization of efficient and clean energy such as coal mine gas, but also protect the atmospheric environment and realize "safety, energy, environment" triple benefit. [0003] The key factor controlling the effect of gas drainage is the coal seam permeability, which reflects the difficulty of gas passing through the coal se...
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IPC IPC(8): E21B49/00G01N15/08
CPCE21B49/00G01N15/082
Inventor 刘清泉程远平王亮郝从猛蒋炤南王成浩
Owner CHINA UNIV OF MINING & TECH