Heat pipe device for deep heat transfer of coal gangue dump

Abstract

The invention discloses a heat pipe device for deep heat transfer of a coal gangue dump. The heat pipe device for deep heat transfer of the coal gangue dump is applied to the technical field of coal gangue dump spontaneous combustion prevention. The heat pipe device for deep heat transfer of the coal gangue dump comprises a pipe body closed at both ends, wherein the upper end of the pipe body is closed by a coupling device; the lower end of the pipe body is closely connected to a drill bit; the inside of the pipe body is sequentially provided with an evaporation section, an adiabatic section and a condensation section from bottom to top; an absorption medium is arranged in the evaporation section of the pipe body; the capacity of the absorption medium is 35-40% of the whole pipe volume; and the outer wall of the evaporation section is provided with spiral ribs. The heat pipe device for deep heat transfer of the coal gangue dump has the advantages of simple structure, novel design and high practical value; and the heat pipe is adopted in the technology of heat pipe heat transfer, and under the action of the drilling bit, the device drills into the coal gangue; and the heat of the coal gangue is scientifically transferred outside, so that the temperature of the coal gangue is lowered to 80 DEG C or less, the problem of spontaneous combustion of the coal gangue dump is completelysolved, and it is necessary to widely promote the heat pipe device.

Description

technical field [0001] The invention relates to the technical field of spontaneous combustion prevention and control of coal gangue hills, in particular to a heat pipe device for deep heat removal of coal gangue hills. Background technique [0002] my country is the country with the largest coal production. Coal gangue is an accompanying product in coal production. With the increase of coal mining intensity, the output of coal gangue also increases. After the coal has been washed, the gangue is separated, and a very small part of it is used as construction materials or as backfill materials and reused underground. [0003] Spontaneous combustion of coal gangue releases a large amount of SO 2 , CO 2 , CO, H 2 Harmful gases such as S seriously pollute the surrounding environment. In addition, spontaneous combustion of coal gangue dumps will also cause disasters such as collapse and explosion. Spontaneous combustion of coal gangue dumps is extremely harmful and needs to be ...

AI Technical Summary

Problems solved by technology

[0006] The traditional technology is to drill holes in the coal gangue first, and then lower the heat pipes into the drilled holes. In this way, a large amount of air will be brought into the coal gangue during the process of lowering the heat pipes into the drilled holes. A large amount of air and The high-temperature coal gangue mixing creates conditions for the spontaneous combustion of coal gangue. There are fatal drawbacks in the implementation of this method, and new solutions are urgently needed to be developed.

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