In the mining industry, mine return air waste heat is a potential energy treasure, and its calculation and recycling can not only improve energy utilization efficiency, but also help reduce adverse effects on the environment. Today, we will talk about the calculation method of mine return air waste heat and the feasibility of recycling and utilization, providing new ideas for energy management in the mining industry.

Calculation method for residual heat of mine return air

The source of waste heat: The waste heat of mine return air mainly comes from the mine ventilation system. During the ventilation process, the air passes through the underground working face and roadway, absorbing a large amount of heat and forming recyclable waste heat resources.

Traditional calculation methods: Traditional calculation methods are usually based on the temperature difference and air volume data of the mine ventilation system. By measuring the difference between the return air temperature and the fresh air temperature, combined with the ventilation airflow, the residual heat in the return air can be preliminarily estimated.

Intelligent computing technology: With the continuous progress of technology, modern mine ventilation systems adopt intelligent sensors and monitoring technology. By real-time monitoring of parameters such as temperature and humidity underground, combined with computer models, the residual heat in the mine return air can be calculated more accurately.

Recovery and utilization of waste heat from mine return air

Heating: Using waste heat for heating is another common application. By using a waste heat pump system, the waste heat is transferred to facilities that require heating, such as industrial plants and office buildings, to achieve dual energy utilization.

Hot water production: Waste heat can also be used for hot water production. Through the waste heat recovery system, the heat energy in the mine return air is transferred to the hot water system to meet the needs of domestic and production water.

Air conditioning cooling: In some tropical regions, waste heat can also be used for air conditioning cooling. By using thermal energy to drive absorption refrigeration or heat pumps, waste heat is converted into cold energy, providing cooling effects for buildings or industrial facilities.

The Economic and Environmental Value of Waste Heat from Mine Return Air

Energy conservation and emission reduction: Recycling and utilizing the waste heat of mine return air can not only reduce dependence on traditional energy, but also help reduce greenhouse gas emissions. Under energy scarcity and environmental pressure, this approach has economic and environmental value.

Energy cost reduction: By effectively recovering and utilizing waste heat, mines can reduce energy costs. Especially in the context of continuously rising electricity prices, self-sufficient energy systems will be more competitive.

Improving mining competitiveness: Implementing the recycling and utilization of mine return air waste heat not only benefits the economic benefits of enterprises, but also enhances their sense of social responsibility, establishes a good corporate image, and enhances competitiveness.

The calculation and recycling of waste heat from mine return air is a crucial step in the mining industry to embrace energy transformation and achieve sustainable development. Through technological progress, policy support, and active participation from enterprises, the energy of mine return air waste heat will be more efficiently and sustainably utilized in the future, bringing new development opportunities to mining enterprises and contributing to the sustainable development of society, economy, and environment.