Vacuum ice-making, refrigeration and cooling system for mine shaft

Abstract

The invention relates to a vacuum ice-making, refrigeration and cooling system for a mine shaft. A cooling tower, a water chilling unit, a water pump, a cooling water supply pipe and a cooling water return pipe form a cooling water heat removal circulation system. The water chilling unit, a vacuum ice-making machine, the water pump, a chilled water supply pipe and a chilled water return pipe form a cold water circulation system. The vacuum ice-making machine, an ice conveying device and a shaft ice conveying pipeline are connected with an underground ice thawing pool, and a cold water pump, a cold water supply pipe, a working face air cooler and a cold water return pipe form an underground ice-thawing, refrigeration and cooling circulation system. When the vacuum ice-making, refrigeration and cooling system works, the water chilling unit is used for making cold water at the temperature of 5 DEG C, the cold water is sent to the vacuum ice-making machine, the small part of the cold water is made into granular ice, and the greater part is the water at the temperature of 10 DEG C, which is returned to the water chilling unit for continuously making the cold water at the temperature of 5 DEG C. The granular ice is sent to the underground ice thawing pool for being thawed into the cold water at the temperature of 3 DEG C and sent to the working face air cooler for making cold air at the temperature of 12-18 DEG C, and the cold air is sent to a working place, thereby achieving the cooling purpose. The water absorbing the heat is returned to the underground ice thawing pool for being thawed into the granular ice. The structure is simple, the cost is low, the performances are stable, and the cooing effect is good.

Description

technical field [0001] The invention relates to a system for cooling a mine to create a low-temperature environment. 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. With the continuous increase of the mining depth of the mine, the working environment of the mine work site is getting hotter and hotter, that is, the heat damage is getting more and more serious . According to statistics, the wind flow temperature of the mining face of many mines in my country 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] At pres...

AI Technical Summary

Problems solved by technology

The common disadvantages are: poor reliability and high operating costs

Its structure is complex

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