Mining winter cooling and mine heat utilization system

Abstract

The invention relates to a mining winter cooling and mine heat utilization system, which consists of a ground part and an underground part. An air cooler of the ground part is connected with a high-pressure cold water supply pipe and a ground cold water return pipe; the high-pressure cold water supply pipe is connected with a water regulating valve, a water inflow regulating valve and a water chiller set respectively; the water chiller set is connected with the high-pressure cold water supply pipe through a water outlet regulating valve; a ground water pump is connected with a shaft cold water supply pipe; an underground cold water supply pipe and a low-pressure cold water return pipe are connected with a mining heat exchanger at an underground part; the mining heat exchanger is connected with a high-pressure combined type air cooler through an underground cold water inlet pipe and an underground cold water return pipe, and is connected with an air cooler through the shaft cold water supply pipe and a shaft cold water return pipe; and the air cooler is connected with a blower and a heat-insulating air pipe. During operation, when the surface air temperature is low enough, the cold water at the temperature about 5 DEG C is obtained to prepare cold air with a temperature ranging from 12 DEG C to 18 DEG C through an underground water pump and the mining high-pressure combined type air cooler, and the cold air is sent to a working site; if the surface air temperature is not cold enough, a natural cold source and the water chiller set are taken as primary and secondary cold sources; and hot air with a temperature ranging from 8 DEG C to 12 DEG C is prepared through the air cooler and the blower for recycle.

Description

technical field [0001] The invention relates to a cooling system for a mine, in particular to a winter cooling and mine heat utilization system for mines. Background technique [0002] Among the proven coal reserves in my country, the coal reserves at a depth of 1000-2000m account for 53.2% of the total reserves, so the mining depth of mines is increasing. Heat, that is, heat damage is becoming more and more serious. According to statistics, there are many pairs of mines in my country where the wind flow temperature of the mining face exceeds 30°C. If there are so many heat-damaged mines, if mature cooling technology and equipment are not developed, the mining and utilization of coal resources will be very difficult, which will affect the sustainable development of the entire national economy. Therefore, high-temperature heat damage in mines has become a problem that cannot be ignored and is urgently needed. solved problem. [0003] The problem of heat damage in deep mines...

AI Technical Summary

Problems solved by technology

If the refrigeration unit is still used to cool down in winter, then the refrigeration unit cannot be stopped after it is started in autumn, but must run all the time, and the use of refrigeration units to cool down the mine in winter wastes electric energy, and there is also a certain degree of difficulty in implementation

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