Coal mine dynamic disaster multi-factor coupling monitoring device, system and method

A technology for dynamic disasters and monitoring devices, which is applied in mining devices, mining equipment, earthwork drilling, etc., to achieve the effect of reducing drilling costs

Pending Publication Date: 2022-03-11
HEILONGJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to overcome the above-mentioned defects in the prior art, the present invention provides a coal mine dynamic disaster multi-factor coupling monitoring device, system and method, which can solve the problem of simultaneously testing the gas pressure, gas flow, temperature and ground stress of the coal rock mass in underground coal mining. Problems with coupled testing

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  • Coal mine dynamic disaster multi-factor coupling monitoring device, system and method
  • Coal mine dynamic disaster multi-factor coupling monitoring device, system and method
  • Coal mine dynamic disaster multi-factor coupling monitoring device, system and method

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Embodiment Construction

[0042] The purpose of this embodiment is to provide a coupling test device and method capable of simultaneously testing the gas pressure, gas flow, temperature and ground stress of the underground coal mining coal rock mass.

[0043] The purpose of the present invention is achieved through the following technical solutions:

[0044] like figure 1 and 2 As shown, a multi-field coupling test device for coal and rock mass in underground coal mining includes a cylinder carrier 1, a gas pressure sensor 2, a gas flow sensor 3, a temperature sensor 4, an in-situ stress sensor 5 and a data acquisition instrument 6, wherein:

[0045] The cylindrical carrier 1 is integrally formed by steel components, with an opening on the left side, a hollow structure inside, a square hole 11 in the middle, and a polyurethane layer 15 to seal the opening on the left side; the outer circumference of the cylindrical carrier 1 has a diameter of 50mm , length 200mm, thickness 4mm.

[0046] The ground s...

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Abstract

The invention discloses a coal mine dynamic disaster multi-factor coupling monitoring device, system and method, belongs to the technical field of coal underground mining dynamic disaster monitoring, and aims to solve the problem of coupling test for simultaneously testing gas pressure, gas flow, temperature and ground stress of coal and rock masses in coal underground mining. Comprising a cylindrical carrier, a gas pressure sensor, a gas flow sensor, a temperature sensor, a ground stress sensor, a data acquisition instrument, a data transmission line, a metal pipe, a first breathable disc, a second breathable disc, a square hole, a steel plate, a gas pipe, a gas pipe valve, a polyurethane layer, a main control unit, a power supply and a substation. The gas pressure, the gas flow, the temperature and the ground stress parameters of the coal and rock mass under the multi-field coupling effect can be monitored at the same time, basic research data statistics and analysis are provided for coal mine dynamic disaster mechanism research, and monitoring information is provided for disasters.

Description

technical field [0001] The invention relates to the technical field of dynamic disaster monitoring in underground coal mining, in particular to a multi-factor coupling monitoring device, system and method for coal mine dynamic disasters. Background technique [0002] With the increase of coal mining depth, the gas pressure, gas flow rate, temperature and ground stress of coal and rock mass increase gradually. [0003] In the process of underground coal mining, the gas pressure, gas flow rate, temperature and in-situ stress in the underground coal and rock body are important factors affecting the safety of coal mine production. Studies have shown that the occurrence of dynamic disasters such as rock burst in deep coal mining is inseparable from the physical and mechanical properties of coal and rock mass, and is related to the geothermal temperature and the occurrence state of coal and rock mass. result of the action. Abnormal changes in gas pressure, gas flow, temperature ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F17/18
CPCE21F17/18
Inventor 秦涛王磊段燕伟刘刚刘永立
Owner HEILONGJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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