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Method for preventing and controlling heat harm in coal mine

A technology for mines and heat hazards, which is applied to the ventilation of mines/tunnels, mining equipment, earthwork drilling and mining, etc. It can solve the problems that the temperature of the working face cannot be effectively reduced, the investment of mine air-conditioning cooling is large, and fresh air cannot be avoided. Effects of preventing and controlling mine heat damage, shortening residence time, and shortening ventilation distance

Inactive Publication Date: 2017-11-03
HEILONGJIANG UNIV OF TECH
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  • Abstract
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Problems solved by technology

[0038] To sum up, the problems existing in the prior art are: the fresh air flow cannot be avoided from the influence of the local heat source, causing the temperature of the air flow to be too high and causing harm to production; and in the prior art, the mine air-conditioning cooling requires a large investment and operating costs High, low equipment reliability, so that the temperature of the working surface cannot be effectively reduced

Method used

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  • Method for preventing and controlling heat harm in coal mine

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Embodiment Construction

[0078] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0079] The application principle of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments

[0080] like figure 1 As shown, the method for preventing and controlling heat damage in coal mines provided by the embodiments of the present invention adopts non-mine air-conditioning cooling methods such as enhanced ventilation for heat damage control; specifically includes:

[0081] S101: reduce the length of the ventilation route;

[0082] S102: Make the fresh air flow avoid the influence of the local heat source;

[0083] S103: Downward ventilation and coo...

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Abstract

The invention belongs to the technical field of coal mines, and discloses a method for preventing and controlling heat damage in coal mines. The method for preventing and controlling heat damage in coal mines adopts non-mine air-conditioning cooling methods such as enhanced ventilation to control heat damage; specifically, it includes: reducing ventilation routes length; keep the fresh air flow away from the influence of local heat sources; downward ventilation to cool down; appropriately increase the air volume to cool down; reduce air leakage in the goaf; pre-cool the coal seam; mobile refrigeration equipment to cool down locally; personal protection. The present invention increases the air volume to about 1200-1300m3 / min for the existing production working face, and reduces the temperature of the working face by 1-2.0°C.

Description

technical field [0001] The invention belongs to the technical field of coal mines, in particular to a method for preventing and controlling heat damage in coal mines. Background technique [0002] With the extension of mine mining to the deep and the improvement of mechanization level, the problem of heat damage in mines in my country has become increasingly prominent, seriously endangering the health of miners and restricting the further improvement of mine production efficiency. It is of great significance to vigorously carry out the investigation of heat damage in mines with heat damage and correctly analyze the causes of heat damage in order to accurately classify mine heat damage levels and fundamentally prevent mine heat damage. [0003] "Several Regulations on Geothermal Measurement for Geological Exploration of Coal Resources" pointed out that the area with an average geothermal gradient of no more than 3°C / 100m is a normal geothermal area, and the area with an avera...

Claims

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Application Information

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IPC IPC(8): E21F1/00E21F3/00
CPCE21F1/006E21F3/00
Inventor 王丽敏宋欣荣河海屈年华姜楠楠
Owner HEILONGJIANG UNIV OF TECH
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