Testing device for simulating temperature reduction of driving face of deep mine

Abstract

The invention relates to a testing device for simulating temperature reduction of a driving face of deep mine. The testing device comprises a main simulated driving face structure, an air inlet and return system, a cooling system, and a data acquisition and control system. The air inlet and return system and the cooling system are arranged at the main simulated driving face structure; and with thedata acquisition and control system, testing for simulating temperature reduction of the driving face of deep mine is realized. According to the testing device, the environmental conditions of the deep driving face of the mine are simulated truly. The device having a simple structure is operated conveniently; and a theoretical basis is provided for taking cooling measures and determining parameters at the field by the driving face of the deep mine. The testing device has the important scientific significance and great engineering practical value.

Description

technical field [0001] The invention belongs to the technical field of mine safety equipment, and in particular relates to a cooling test device for simulated driving face in deep mines. Background technique [0002] With the increase of mining depth, mine geothermal, rock burst, coal and gas outburst and other disasters are becoming more and more serious, especially heat damage is an inevitable disaster in deep mines. Underground high temperature not only affects the safe production of coal mines, but also seriously threatens the health of workers. Scholars at home and abroad have done a lot of work on the prevention and control of mine heat damage, and have made good progress. At present, the main cooling methods in practical application are non-refrigeration cooling and cooling cooling. The non-refrigeration cooling methods mainly include mining deployment and Adjust the air flow, arrange the air inlet lane in the low-temperature rock formation, and use the transportation...

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Problems solved by technology

Scholars at home and abroad have done a lot of work on the prevention and control of mine heat damage, and have made good progress. At present, the main cooling methods in practical application are non-refrigeration cooling and cooling cooling. The non-refrigeration cooling methods mainly include mining deployment and Adjust the air flow, arrange the air inlet lane in the low-temperature rock formation, and use the transportation level roadway of the mining face as the return air lane to implement downward ventilation to facilitate the discharge of heat released by the transportation equipment and increase the mine air volume; , Underground centralized water-cooled air-conditioning system; there are also mixed water-cooled air-conditioning systems up and down the well and distributed underground water-cooled systems; the existing practically applied devices are mainly aimed at the entire mining area or the entire level, cooling the large system and large-scale of the mine; and the mine excavation The working face has the characteristics of small space, concentrated mechanical and electrical equipment, few personnel, serious heat damage, and is a single head that is constantly moving forward. Face cooling measures and related parameters, etc., need a test device that can realistically simulate the conditions and cooling of deep mine excavation working faces. The test can provide a basis for the determination of on-site cooling measures and related parameters.

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