Mine working face cooling system

Abstract

The invention provides a cooling system for the working face of the mine. The invention consists of a ground refrigerating unit, a cooling water recycling device, a cold wind preparing device and a cold wind conveying pipeline. The refrigerating unit and the cooling water recycling device comprise a compressor 7, a condenser 3, a throttle 8, a heat exchanger 10, a cooling water pond 1, and a fresh water pump 2. The cold wind preparing device is a wind spraying chamber 11, and uses the cold media water prepared by the refrigerating unit to spray the wind current, can comprises a wind-inlet grille 16, a wind outlet 20, a water squirting pipe 17, a nozzle 18, a breakwater 19, a wind chamber water falling pond 21, a general water inlet pipe 22, a general water outlet pipe 23 and the like. A plurality of rows of vertical water squirting pipes are arranged between the wind-inlet grille and the wind inlet, nozzles are arranged on the top of the water squirting pipes, and the general water inlet pipe introduces the cold media water of the refrigerating unit. The invention adopts the cold media water spray to process, and prepare the cold wind with the high wind volume, high temperature difference, high enthalpy difference; can reduce the times of the heat exchanging process, lower the heat transferring temperature difference, improve the whole efficiency, and reduce the cold volume waste of the middle course; thereby is applicable for cooling the high-temperature hot and harmful circumstance.

Description

technical field [0001] The invention relates to the field of mine working face cooling, in particular to a mine working face cooling system suitable for cooling in an ultra-deep mine mining working face in a high-temperature heat damage environment. Background technique [0002] "Utility Model Patent Bulletin" discloses the patent of "Underground Ice Melting Pool in Mine Ice Cooling System", application number: 200420002465. The mine working face cooling process adopts the ground centralized refrigeration station to produce ice and snow mixture, which cools the air through the heat absorption of ice and snow in the underground, and then transports the cold air to the working face to achieve the purpose of cooling the working face. Due to the increase of the two intermediate processes of ice and snow production and ice and snow melting, the efficiency of the system is greatly reduced, and the investment in equipment and funds is increased, and the economy is reduced; enginee...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies of large investment, low efficiency, and low reliability of the existing mine working face cooling system, the present invention provides a mine working face cooling system, which can meet the refrigeration requirements of large air volume, large temperature difference, and large enthalpy difference required for mine cooling. , simplify the intermediate process to achieve energy saving and efficiency, and improve the reliability of the application

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