Mine well mouth anti-freezing air heating device based on methyl alcohol nano catalytic oxidation

Abstract

The invention discloses a mine well mouth anti-freezing air heating device based on methyl alcohol nano catalytic oxidation, and belongs to the technical field of mine well mouth anti-freezing air heating devices. The improvement of the structure of the mine well mouth anti-freezing air heating device based on methyl alcohol nano catalytic oxidation is provided in order to solve the technical problem. According to the technical scheme used for solving the technical problem, the mine well mouth anti-freezing air heating device comprises a reaction device and a heating device, wherein the reaction device and the heating device are arranged on a mounting base and arranged side by side; and the reaction device is a multi-cavity box body formed by multiple steel plates, a reaction bed waste heat cavity, a new air exchange cavity and an initial air heat exchange cavity are sequentially formed in the reaction device from bottom to top, an evaporation heat exchange cavity is formed in the heating device, multiple exchanger heat pipes are vertically arranged in the evaporation heat exchange cavity, a hot air outlet is formed in one end of the heating device, and a hot air inlet is formed inthe other end of the heating device. The mine well mouth anti-freezing air heating device is applied to the field of mine well mouth air heating devices.

Description

technical field [0001] The invention is based on methanol nano-catalyzed oxidation mine wellhead antifreeze air heating device, and belongs to the technical field of mine wellhead antifreeze air heating device. Background technique [0002] In winter, when the cold wind enters the coal mine intake wellhead, it will come into contact with the water vapor and humid air in the well, and it is easy to freeze on the well wall and the shaft beam. The mine safety regulations require that the air temperature in the wellhead must be kept above 2°C, so the antifreeze at the wellhead is an important guarantee for the safe production of coal mines in winter. [0003] At present, there are mainly three antifreeze heating methods for the antifreeze of each air inlet wellhead in coal mines. The hot blast stove that burns coal as the heat source, and the boiler that burns liquefied petroleum gas or natural gas to provide hot air. High labor operation cost, and the exhaust gas emitted by th...

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Problems solved by technology

[0002] In winter, when the cold wind enters the coal mine intake wellhead, it will come into contact with the water vapor and humid air in the well, and it is easy to freeze on the well wall and the shaft beam. The mine safety regulations require that the air temperature in the wellhead must be kept above 2°C, so the antifreeze at the wellhead is an important guarantee for the safe production of coal mines in winter

[0003] At present, there are mainly three antifreeze heating methods for the antifreeze of each air inlet wellhead in coal mines. The hot blast stove that burns coal as the heat source, and the boiler that burns liquefied petroleum gas or natural gas to provide hot air. High labor operation cost, and the exhaust gas emitted by the boiler will also pollute the environment; the above-mentioned type of boiler will produce a large amount of nitrogen oxides during the heating process, and the environmental protection department requires the emission standard of nitrogen oxides below 30mg, which needs to be Corresponding technological and structural improvements are made to the existing boiler system in order to meet the requirements of emission indicators; in addition, since most of the coal mines are located in remote locations and the vehicle transportation distance is long, it is necessary to build a natural gas storage and gasification device in the coal mine, which will bring more pollution to the coal mine. Corresponding storage and use risks

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