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Coal rock torsional friction comprehensive experiment system

An experimental system, a technology of coal and rock, applied in material inspection products, using stable torsional force to test material strength, instruments, etc., can solve problems such as less tectonic coal involved

Active Publication Date: 2021-02-05
ANHUI UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] It can be seen that the study of frictional surfaces in tectonic coal plays a vital role in revealing the mechanism of coal deformation and metamorphism.

Method used

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  • Coal rock torsional friction comprehensive experiment system

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0025] Such as figure 1 As shown, a coal-rock torsional friction comprehensive experimental system includes: a pressure control unit, a rotational speed control unit, a torsion test bench, a reactor body 32, a gas detection unit and a gas injection unit;

[0026] The torsion test bench includes a pressure bearing shaft 7, a pressure transmission shaft 9, a thrust shaft, a slide rail 11, a fixer 12, a base 14, and two support arms 5; the two support arms 5 are symme...

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Abstract

The invention discloses a coal rock torsional friction comprehensive experiment system, and belongs to the field of coal geology. The coal rock torsional friction comprehensive experiment system comprises a pressure control unit, a rotating speed control unit, a torsional experiment table, a reaction kettle body, a gas detection unit and a gas injection unit. The pressure control unit, the rotating speed control unit and the reaction kettle body are all arranged on the torsional experiment table; and the gas injection unit and the gas detection unit are connected outside the reaction kettle body. Compared with the prior art, the coal rock torsional friction comprehensive experiment system provided by the invention has the advantages that: a torsional coal body friction experiment can be realized, the coal body friction speed is precisely controlled, the gas environment atmosphere of friction can be changed, and a fluid-solid coupling friction experiment is realized, and products generated in the coal friction experiment process can be collected and detected on line in real time, and the experiment system is reasonable in structure, convenient to disassemble and high in safety coefficient.

Description

technical field [0001] The invention relates to the field of coal geology, in particular to a coal-rock torsional friction comprehensive experiment system. Background technique [0002] Coal and gas outburst is still one of the major hidden dangers of coal mining safety. Studies have shown that structural coal is one of the necessary conditions for coal and gas outburst, especially ductile deformed structural coal. In the process of coal and gas outburst, the amount of gas outburst is often much higher than the actual gas content of the outburst coal body, as many as dozens or even hundreds of times, even considering the gas existing in the surrounding rock during the process of gas production and gas outburst, It is also far from being able to make up the gap between the gas content and the Rankine adsorption capacity. At present, geologists generally believe that the dynamic metamorphism of tectonic coal can provide the source and storage space for excess gas in the proce...

Claims

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Application Information

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IPC IPC(8): G01N30/02G01N30/06G01N3/56G01M3/26
CPCG01N30/02G01N30/06G01N3/56G01M3/26G01N33/24G01N3/22G01N2203/0021G01N19/02G01N33/222G01N2030/022
Inventor 刘和武徐楠宋帅兵倪廉钦
Owner ANHUI UNIV OF SCI & TECH
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