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Air exhaust system and method for forming roadway atmospheric pressure support

An atmospheric pressure and air extraction system technology, which is applied in tunnels, temporary shields, earthwork drilling, etc., can solve the problems of high labor intensity, insufficient support strength, and slow construction speed, so as to ensure the efficiency of air extraction and reduce the The effect of manual labor intensity and reducing time-consuming

Active Publication Date: 2021-01-15
CCTEG COAL MINING RES INST +1
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Problems solved by technology

[0005] For this reason, the first purpose of this application is to propose an air extraction system that forms roadway atmospheric pressure support, for solving the needs existing in the prior art Manual handling for support, slow construction speed, insufficient support strength, poor support quality, and high manual labor intensity

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  • Air exhaust system and method for forming roadway atmospheric pressure support
  • Air exhaust system and method for forming roadway atmospheric pressure support
  • Air exhaust system and method for forming roadway atmospheric pressure support

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Embodiment Construction

[0047] In order to better understand the above-mentioned technical solutions, exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0048] figure 1 It is a schematic diagram of an air extraction method for forming roadway atmospheric pressure support disclosed in an embodiment of the present application. Wherein, the formation method of the support in the roadway includes multiple operation cycle units, such as figure 1 As shown, each operation cycle unit includes the following steps:

[0...

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Abstract

The invention discloses an air exhaust system and method for forming roadway atmospheric pressure support. The system comprises a spraying device, a vacuumizing subsystem, an air pressure sensor and acontroller, wherein the spraying device is used for spraying a spraying material onto the surface of a newly formed roadway so as to form a sealing spraying layer on the surface of surrounding rock,the vacuumizing subsystem is used for extracting gas in a surrounding rock gap from a non-spraying area on the surface of the surrounding rock so as to enable the surrounding rock to be in a negativepressure state, the air pressure sensor is used for detecting current air pressure in the surrounding rock gap in the air exhaust process, and the controller is used for controlling the vacuumizing subsystem and adjusting working parameters of the vacuumizing subsystem according to the current air pressure. Pressure difference is formed between the inner surface and the outer surface of the surrounding rock by automatically extracting the gas in the surrounding rock gap, namely the interior of the surrounding rock is in the negative pressure state, and therefore the newly formed roadway can beeffectively supported through atmospheric pressure; and in addition, the current air pressure in the surrounding rock gap is detected in real time, the working parameters of the vacuumizing subsystemare adjusted according to the current air pressure, and the forming efficiency of temporary support in the roadway is guaranteed.

Description

technical field [0001] The present application relates to the technical field of coal mining, in particular to an air extraction system and method for forming roadway atmospheric pressure support. Background technique [0002] Coal is the main energy source in our country, and has played an important role in promoting the national industrial development and national economic progress. The rapid excavation of coal mine roadways has become a "stuck neck" problem that restricts the safe and efficient mining of coal. Optimizing the tunneling and support process, developing efficient, safe and reliable temporary support, and improving the efficiency of permanent support are the fundamental ways to increase the speed of roadway formation. [0003] The traditional temporary support methods are metal probe beams, single hydraulic props, etc., which require manual handling for support. The construction speed is slow, the support strength is insufficient, the support quality is poor,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/00E21D11/10E21D19/00E21F17/18
CPCE21D11/00E21D11/10E21D19/00E21F17/18
Inventor 康红普姜鹏飞王子越韦尧中刘畅郭吉昌罗超曹晓明陈志良郑仰发杨建威孙志勇王涛
Owner CCTEG COAL MINING RES INST
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