Gas flow characteristic testing device of fragmented coal rock mass

A technology of flow characteristics and gas, applied in the field of test equipment for gas flow characteristics of scattered coal and rock mass

Inactive Publication Date: 2015-04-08
CHINA UNIV OF MINING & TECH (BEIJING)
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Problems solved by technology

The usual gas flow characteristics test is to use secondary formed coal samples or take samples in the coal rock body in the area not affected by mining. The coal rock samples obtained in this way are relatively complete, but they cannot completely simulate the gas flow after the impact of mining. Gas Flow Characteristics in Coal and Rock Body

Method used

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  • Gas flow characteristic testing device of fragmented coal rock mass
  • Gas flow characteristic testing device of fragmented coal rock mass

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Embodiment Construction

[0020] Refer to the following Figure 1-2 Examples of the present invention will be described.

[0021] In order to make the above objects, features and advantages more clearly understood, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0022] A gas flow characteristic test device for scattered coal and rock mass, comprising a sealed cavity, a loading system 15, a gas supply and control system, a gas flow characteristic monitoring system and a collection computer; one side of the sealed cavity is made of a high-strength soft elastic material 5. It is sealed and in contact with the loading system 15. The side of the sealed cavity is provided with an air inlet 12 and an air outlet 8. The gas supply and control system, the gas flow characteristic monitoring system and the acquisition computer are respectively connected with the air inlet 12 and the air outlet 8. connected.

[0023] like fig...

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Abstract

The invention discloses a gas flow characteristic testing device of fragmented coal rock mass. The device comprises a sealed cavity, a loading system, a gas supply and control system, a gas flow characteristic monitoring system and an acquisition computer, wherein one side of the sealed cavity is sealed with a high-strength flexible elastic matter, and keeps surface contact with the loading system; an air inlet and an air outlet are formed on the side surface of the sealed cavity; and the gas supply and control, the gas flow characteristic monitoring system and the acquisition computer are respectively connected with the air inlet and the air outlet. The testing device can realize the laboratory experimental study on the gas flow characteristic in the coal rock mass with different fragmentation degrees, and is a reliable, economic and simple experimental means.

Description

technical field [0001] The invention relates to the technical field of gas flow characteristic testing, in particular to a gas flow characteristic testing device of scattered coal rock mass. Background technique [0002] The experimental study of gas flow characteristics is carried out based on field sampling and combined with test equipment, and the use of instruments and equipment to change the external stress, deformation, environment and other conditions of the coal and rock samples to simulate the gas flow characteristics of coal and rock in the process of underground coal mining. Research. Scattered coal rock mass is formed after the coal mass is affected by mining in the process of underground coal mining, and is a common manifestation of coal rock mass in the underground stope area. . The usual gas flow characteristics test is to use secondary formed coal samples or samples from the coal rock within the unaffected range. The obtained coal rock samples are relativel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M9/00
Inventor 赵洪宝杜秋浩吴仁伦蒋军军孙书伟李启超张正新
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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