Dynamic impact experiment system and method of corrosion coal containing gas
A technology of impact experiment and dissolution of coal, applied in the field of experimental research in coal and rock laboratories
Inactive Publication Date: 2016-06-01
ANHUI UNIV OF SCI & TECH
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Problems solved by technology
However, there are relatively few supporting experimental methods and means for coal, such as the gas-containing coal seepage test system (ZL201520349249.3) invented by Wang Dengke et al.; Measures There are no means and methods for experimental research on the response characteristics of coal under the action of working fluid dissolution after being subjected to impact dynamics. Therefore, in order to better study the mechanical properties of coal under various conditions, it is necessary to invent a method based on SHPB The dynamic impact experiment system and method of gas-containing dissolved coal based on the method has theoretical and engineering practical significance
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[0020] The present invention will be further elaborated below in conjunction with the accompanying drawings and embodiments.
[0021] Such as figure 1 Shown is a schematic diagram of the structure of the present invention, the gas-containing dissolved coal dynamic impact test system includes an impact component system, an exhaust system, an air intake system and a dissolution working system; wherein the impact component system includes an incident rod 1, a transmission rod 2, and a flexible patch 3. Coal sample 4, steel chamber 5, sealing washer 6, pin bolt 7, nut 8, Y X Type sealing ring 9, pressure sensor 10, pressure gauge 11, data acquisition instrument 12, tempered glass 41, O-type sealing gasket 42 and bolt 43 (such as figure 2 shown); the exhaust system includes an exhaust valve 13, a vacuum pump 14; the intake system includes an intake valve 15, a solenoid valve 16, a pressure reducing valve 17, and a high-pressure gas cylinder 18; the erosion working system includes...
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The invention discloses a dynamic impact experiment system and method of corrosion coal containing gas. The system comprises an impact member system, an exhausting system, a gas feeding system and a corrosion working system, wherein the impact member system comprises an incidence rod, a transmission rod, a flexible patch, a coal sample, a steel cavity, a sealing washer, a fastening bolt, a nut, a YX-type sealing ring, a pressure sensor, a pressure gauge, a data acquisition instrument, tempered glass, an O-shaped sealing washer and a bolt; the exhausting system comprises an exhausting valve and a vacuum pump; the gas feeding system comprises a gas feeding valve, a solenoid valve, a decompression valve and a high-pressure gas bottle; and the corrosion working system comprises a solution box, a corrosion solution, a heater, a first brake valve, a first liquid pump, a first flow meter, a second brake valve, a third brake valve, a second liquid pump, a second flow meter and a fourth brake valve. According to the invention, response properties of the coal which is deeply influenced by environment temperatures and is corroded by underwater or a hydraulic measurement working solution can be researched after the coal is subjected to impact power, and the dynamic impact experiment system and method have theory and engineering practice meanings.
Description
technical field [0001] The invention relates to the technical field of laboratory experiment research on coal and rock, in particular to a dynamic impact test system and method for gas-containing dissolved coal. Background technique [0002] In the process of coal mining, impact loads such as gas explosions, explosive explosions, and rock bursts are often encountered. Since the mechanical response of objects under impact loads is significantly different from that under static loads, inertial effects and strain rate effects must be considered. That is to say, understanding the mechanical response of coal and rock under impact load is of great significance for coal mining and disaster prevention and control. In 1914, B. Hopkinson designed the Hopkinson Pressure Bar (HPB for short) to study the pressure-time relationship when explosives explode or bullets shoot into the rod end. In 1949, Kolsky turned the Hopkinson compression bar into a separate type to study the dynamic resp...
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IPC IPC(8): G01N3/30
CPCG01N3/30
Inventor 李重情刘泽功穆朝民刘健张文清张曦
Owner ANHUI UNIV OF SCI & TECH