System and method by means of power plant waste heat for conducting aeration cooling on mine

Abstract

The invention relates to a system and method by means of power plant waste heat for conducting aeration cooling on a mine. The system by means of the power plant waste heat for conducting the aeration cooling on the mine comprises an air inlet mine, an air exhaust mine, an air cooler and a lithium bromide absorption type refrigerating machine. The air cooler is arranged on an air inlet, and an air door is arranged on a person/material inlet. When the air door is closed, negative pressure is generated on an air inlet mine opening by a mine ventilator, cooling and dehumidification processing is carried out on the ground air through the air cooler, and then the ground air is pumped into the mine. The lithium bromide absorption type refrigerating machine is arranged on the ground, waste heat provided by a mine pithead thermal power plant drives the lithium bromide absorption type refrigerating machine to conduct cooling, the lithium bromide absorption type refrigerating machine generates cold water, and the cold water is used as a cold source to be used by the air cooler. The invention further relates to the corresponding cooling method. The system and method have the advantages of being small in investment, low in operation cost, high in energy utilization rate and good in cooling effect, and is applied to cooling of a seasonal heat damage mine.

Description

technical field [0001] The invention belongs to the field of mine cooling, and in particular relates to a system and method for ventilating and cooling mines by using waste heat from power plants. Background technique [0002] Mine heat hazard control is an important issue facing coal production in my country, and it is also a worldwide engineering problem. With the increase of my country's coal demand, the gradual reduction of shallow resources, and the continuous increase of mine mining depth, the problem of mine heat damage has become prominent. The high-temperature and high-humidity underground environment will not only make people feel uncomfortable, produce excessive heat stress and destroy the thermal balance of the human body, but also may cause heat stroke, which will make people's psychological and physiological reactions abnormal, thereby reducing labor productivity and increasing the accident rate. Seriously affect coal mine safety production. [0003] For this...

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Problems solved by technology

This method requires a large investment, the greater the excavation depth, the greater the pressure on the underground pipeline, the higher the operation and maintenance costs, and the equipment must have an explosion-proof function. Because the mine covers a large area and the cold locations are scattered, the centralized arrangement of refrigeration stations will inevitably cause serious damage. The cold water delivery pipeline is too long, the temperature rises greatly after reaching the cooling point, and the effective cooling capacity is insufficient. It is only suitable for mines with serious heat damage and shallow mining depth.

[0005] The ice cooling system mainly consists of ground refrigeration, ice making and heat dissipation systems, and underground ice delivery, ice melting, cold delivery and cooling systems. It requires special ice delivery channels and equipment, and the energy consumption of ice delivery is also large, and the investment is large. high energy consumption

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