Coal and gas outburst simulation testing device
A gas outburst, simulation test technology, applied in measurement devices, fuel testing, material inspection products, etc., can solve the problems of lack of authenticity in simulation, not considering the effect of sudden increase in gas pressure, and achieve the effect of avoiding influence and accurate data
Active Publication Date: 2017-12-26
LIAONING TECHNICAL UNIVERSITY
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Problems solved by technology
But so far, most of the experimental devices used in this research have not considered the impact of the sudden increase of gas pressure on the occurrence of dynamic disasters, and the simulation lacks authenticity.
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[0014] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0015] like figure 1 and figure 2 As shown, the coal and gas outburst simulation test device provided by the present invention is used to simulate the process of coal and gas outburst. The coal and gas outburst simulation test device includes a sample loading device 100 and a high-pressure gas generating device 200. The sample loading device 100 includes a cylinder 2. Confining pressure inlet 21, the left and right ends of the cylinder 2 are respectively provided with a left end cap 1 and a right end cap 10 which are threaded and sealed with the cylinder 2, wherein the left end cap 1 is an open structure with a hole in the middle (with Simulated roadway space), the rig...
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The invention provides a coal and gas outburst simulation testing device. The device comprises a specimen loading device and a high pressure gas generation device, the specimen loading device comprises a cylinder with an ambient pressure inlet, an axial compression inlet is formed in the right end cover of the cylinder, the cylinder is internally provided with a cavity wrapping a specimen, the right end of the cavity is in sleeve joint with an axial compression piston of which the axis is provided with a gas inlet, the left end of the cavity is in sleeve joint with an annular support, and an organic glass plate is arranged between the right end of the annular support and the specimen; the high pressure gas generation device is composed of a gas spray head, a gas cylinder and a gas pressurization device, the gas spray head is composed of an impact head, a connecting pipe and a three-way connecting base, and the three-way connecting base is connected with the connecting pipe, the gas cylinder and the gas pressurization device separately. According to the device, the stress environment of coal rock in a pit is simulated through ambient pressure loading and axial compression loading, sudden high pressure gas is obtained through the high pressure gas generation device, the process that the gas pressure is increased suddenly, so that a coal and gas outburst occurs is simulated, and a means is provided for coal and gas outburst mechanism study and prevention.
Description
Technical field: [0001] The invention relates to a coal and gas outburst simulation test device for carrying out research on coal and gas outburst mechanism. Background technique: [0002] With the increase of coal mining depth, some mines (coal mines) in the world have entered the stage of deep mining. The maximum mining depth of coal mines in Germany, the United Kingdom, Russia, China, Japan and other countries exceeds 1000 meters. Among them, Xinwen, which has the largest mining depth in my country The mining depth of Suncun Coal Mine in the mining area has reached 1518 meters. Under deep conditions, coal seam gas pressure is high, more than half of which are high-gas mines, and coal and gas outburst disasters are serious. After entering a deep well of over 1,000 meters, mine dynamic disasters will be transformed and compounded, making the mechanism of coal and gas outburst disasters more complex. It is complex, and some of the existing shallow mechanisms are not fully ap...
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IPC IPC(8): G01N33/22
CPCG01N33/222
Inventor 郑文红潘一山罗浩邱兆云唐治
Owner LIAONING TECHNICAL UNIVERSITY