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Excavation tunnel heat-insulation flow-dividing heat discharge cooling method

A technology of shunting row and roadway, which is applied in the direction of earth drilling, mine/tunnel ventilation, mining equipment, etc.

Active Publication Date: 2012-11-07
盐城捷晶科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0030] Through the analysis of the above methods, we can see that the traditional cooling methods have their limitations.

Method used

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  • Excavation tunnel heat-insulation flow-dividing heat discharge cooling method
  • Excavation tunnel heat-insulation flow-dividing heat discharge cooling method

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Embodiment Construction

[0038] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0039] see figure 1 , figure 2 , the present embodiment includes being arranged in the roadway 1, imitating the shape of the roadway surrounding wall, that is, the shape of the roof and the two states of the roadway, and the heat insulation board 4 with a certain size from the roadway surrounding wall. The heat insulation board 4 is made of heat insulating material with thermal conductivity less than 0.05W / M.K, and is fixed on the roadway support. The heat insulation board 4 divides the roadway 1 into a main channel 5 in the middle of the roadway and a secondary flow channel 6 between the heat insulation board 4 and the surrounding rock of the roadway wall. It can be seen from the figure that the heat shield 4 is located at the end of the excavation face 7 and is connected with an angle-adjustable deflector 8 , the deflector 8 is inclined toward the ...

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Abstract

The invention discloses an excavation tunnel heat-insulation flow-dividing heat discharge cooling method. In the method, a closed heat insulation board with a shape similar to the shape of the peripheral wall of a tunnel is disposed at a distance from the peripheral wall of the tunnel and along the excavation direction; the heat insulation board divides the air flow inside the tunnel into a main flow channel air flow in the middle of the tunnel and an auxiliary flow channel air flow between the heat insulation board and the peripheral wall surrounding rock of the tunnel; in the main flow channel is disposed an air duct connected with an auxiliary fan; partial harmful gas / dust and heat / moisture of a heading face and heat / moisture of the tunnel surrounding rock are discharged via the auxiliary flow channel; and convection heat transfer and moisture exchange between surrounding air of the tunnel surrounding rock and air in the middle of the tunnel are blocked by the heat insulation board. The inventive method increases heat resistance of heat transfer of the tunnel peripheral wall, reduces the quantity of heat transferred to the middle of the tunnel from the tunnel surrounding rock, blocks convection heat transfer and moisture exchange between surrounding air of the tunnel surrounding rock and air in the middle of the tunnel, and has the characteristics of simple structure, convenient maintenance, economical operation and remarkable cooling efficiency, compared with other cooling methods.

Description

technical field [0001] The invention belongs to the technical field of cooling in mines, and in particular relates to a cooling method for heat insulation, diversion, exhaustion, and cooling of tunnels. Background technique [0002] With the continuous increase of mine mining depth, the ground temperature continues to rise, and the air humidity in the mine gradually increases. High temperature and high humidity environment will seriously affect the production efficiency and safety of underground operators. According to investigations, the heat source of high-temperature mines mainly comes from the rock temperature on the roadway wall. Miners work in a high temperature and high humidity environment for a long time, which will cause body temperature to rise, metabolism to be disordered, the body to lose a lot of water, and the normal functions of some physiological systems to change, causing heatstroke, and even death in severe cases. Miners work in a high-humidity environme...

Claims

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Application Information

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IPC IPC(8): E21F3/00
Inventor 邹声华张登春宁齐元肖国清
Owner 盐城捷晶科技有限公司
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