In today's era of pursuing green and clean energy, various industries are actively seeking innovative energy solutions. In this context, the utilization technology of mine return air waste heat has emerged as an important tool for bringing clean and efficient energy to the mining industry.
Energy Challenges and Responsibilities of the Mining Industry
The threat of energy crisis: With the continuous growth of energy demand, the limited and non renewable nature of traditional energy is gradually exposed. As the main source of energy, mines bear greater energy responsibility.
The huge energy consumption of the mining industry: With its vast equipment and high-intensity production work, the mining industry has a huge demand for energy. How to reduce dependence on limited energy while efficiently producing has become an urgent problem to be solved.
The principle of mine return air waste heat utilization technology
The basic principle of waste heat recovery: During mining operations, the underground hot air is discharged through a ventilation system. The mine waste heat utilization technology captures and upgrades the high-temperature hot air discharged through the exhaust air heat pump system, making it a high-quality energy source that can be utilized.
Utilizing heat pump technology: Heat pump technology is often used to utilize the waste heat of mine return air, upgrading low-temperature hot air to high-temperature thermal energy, which can be applied in multiple fields such as heating and power generation, achieving multiple applications of energy.
Multi domain application: This technical solution can not only meet the energy needs of the mine itself, but also provide clean energy to surrounding communities, achieving energy sharing and win-win situation among multiple parties.
Key advantages of mine return air waste heat utilization technology
Energy efficient utilization: The waste heat in the mine return air is recycled and utilized, improving the overall energy utilization efficiency and achieving efficient energy utilization.
Environmental sustainability: By reducing waste heat emissions, mines have made significant contributions to environmental protection. Clean and sustainable energy utilization also meets the growing expectations of society for environmental protection.
Cost reduction: By reducing reliance on traditional energy, mines can effectively reduce operating costs. The utilization of residual heat from mine return air has brought a win-win situation for both economic and social benefits to the mine.
Successful Cases of Utilizing Waste Heat from Mine Return Air
The exhaust air heat extraction project of Xinwang Coal Mine in Datong, Shanxi is located in Datong, Shanxi. The project is equipped with two two-stage heating medium temperature exhaust air heat pump units, namely KLMK-STS/S-1000/250 and KLMK-STS/S-800/200, with a water supply temperature of ≥ 50 ℃. They have been running smoothly for three heating seasons and are used for fresh air heating at the wellhead and hot water bathing, with good heating effect.
The promotion and application of mine return air waste heat utilization technology not only brings clean and efficient energy solutions to the mining industry itself, but also makes positive contributions to society and the environment. In the future, with the continuous innovation of technology and the demand for green energy in society, the mining industry will actively apply return air waste heat utilization technology, jointly promote the development of clean energy and move towards a beautiful future of sustainable development.
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