High temperature mine ventilation method

A technology of mine ventilation and ventilation mode, which is applied in mine/tunnel ventilation, mining equipment, earthwork drilling and mining, etc. It can solve the problems of unfavorable mine cooling, complex ventilation network, and insufficient ventilation capacity, and achieve the effect of alleviating high temperature heat damage

Inactive Publication Date: 2014-07-30
CHINA UNIV OF MINING & TECH (BEIJING)
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Problems solved by technology

[0005] For high-temperature mines, with the expansion of minefield development area, the length of ventilation routes continues to increase, and the ventilation network becomes more and more complex. Traditional ventilation methods will have problems such as insufficient ventilation capacity, which is not conducive to mine cooling.
In addition, if the mine adopts the press-in ventilation method, the entire mine ventilation system is in a positive pressure state higher than the local atmospheric pressure, which can be approximately regarded as a thermal process of adiabatic compression, which has a significant heating effect on the air flow, and is not conducive to mine ventilation. cool down

Method used

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  • High temperature mine ventilation method

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specific Embodiment

[0024] Such as figure 1 As shown, the fresh wind enters the downhole from the air inlet shaft 1 (auxiliary shaft), enters the underground concentrated air intake lane 5 through the parking lot at the bottom of the shaft, passes through the initial uphill mining area 10 and the lower parking lot 6, enters the initial uphill mining area into the upper mountain 7, and passes through The central parking lot 8 of the initial uphill mining area enters the air inlet level lane 9 of the coal mining face of the initial uphill mining area, enters the return air level lane 12 of the coal mining face of the initial uphill mining area through the working face 11, and enters the return air level lane 14 of the initial uphill mining area , into the concentrated return air alley 26, and finally return to the ground through the air shaft 3 in the central square; at the same time, the fresh air flow enters the initial downhill mining area from the centralized air intake alley 5 into the initial ...

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Abstract

The invention discloses a high temperature mine ventilation method. The method comprises a manner of focused intake air and dispersed return air, and a manner of multi-air shaft draw-out type ventilation. An initial stage mining area and an extending mining area both adopt an intake air manner of an auxiliary well for main air intake, a main well for auxiliary air intake, and a main intake air main roadway for focused air intake; the initial stage mining area adopts a central industrial square air shaft for return air; the extending mining area adopts a well boundary air shaft for return air; main fans are mounted in a central square return air pithead and a well boundary return air pithead; a full mine adopts an exhaust ventilation manner. Through the full mine ventilation of a high temperature mine, the method can effectively alleviate the high temperature heat damage underground.

Description

technical field [0001] The invention relates to a high-temperature coal mine whole mine ventilation technology, in particular to a high-temperature mine ventilation method. Background technique [0002] The mine ventilation system is an important part of the mine production system, and whether its design is reasonable or not has a long-term and important impact on the safe production and economic benefits of the entire mine. Especially in high-temperature mines with heat damage problems, a scientific and reasonable ventilation system (ventilation method) is the guarantee for safe and efficient mine production. [0003] In the prior art, the ventilation systems can be divided into central type, diagonal type, regional type and mixed type according to the different positions of the inlet and return air shafts in the mine field. The central ventilation system has the advantages of less shaft engineering and low initial investment. Therefore, it should be preferred in the init...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F1/00
Inventor 秦跃平杨小彬吴建松孔松刘伟郝永江宋怀涛
Owner CHINA UNIV OF MINING & TECH (BEIJING)
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