Shaanxi Huadian Yuheng Coal and Electricity Co., Ltd. (hereinafter referred to as "Yuheng Coal and Electricity") adheres to the energy strategy of "four revolutions and one cooperation", firmly establishes the new development concept of "green mountains and clear waters are as valuable as mountains of gold and silver", actively implements carbon peak and carbon neutrality actions, organically integrates ecological civilization construction with the industrial chain of coal mining, washing and processing, logistics and sales, promotes the synergy of emission reduction and carbon reduction, and continuously improves the environmental protection system and mechanism, strengthens supervision and implementation, and builds a world-class energy enterprise with global competitiveness.

Overview of the factory area

1、 Strengthen top-level design, improve and perfect management system

Yuheng Coal and Electricity has established an ecological and environmental protection leadership group led by the chairman, and has separately set up an environmental protection and water affairs department, further highlighting the importance of ecological and environmental protection, enhancing the power of ecological and environmental protection management, improving the systematic and coordinated management, perfecting the institutional system construction, forming a "1+6+N" environmental protection management system framework, and consolidating the foundation of standardized management.

2、 Using "ecology" as a pen to depict the beauty of green development

The growth of plants and trees is the wealth of a country. From managing mountains and waters to "knowing mountains and waters", Yuheng Coal and Electricity has always adhered to the development policy of safety, greenness, technology, and coordination. It not only emphasizes greening, but also solidifies greening, constantly deepening the understanding and practice of ecological civilization construction. With the basic principles of "overall promotion, ecological priority, comprehensive governance, and responsibility implementation", it adheres to the principle of "mining without seeing mines, mining with green decoration", actively formulates governance plans, establishes a "weekly report" working mechanism, and fully promotes the greening of the factory area, ecological restoration and governance of goaf subsidence areas, and ecological restoration of waste disposal sites. "Ten thousand hectares of coal sea with Wujin surge, and a hundred mile mining area with lush greenery", the cumulative ecological restoration and governance area of Xiaojihan Coal Mine has exceeded 900. hectares, the originally fragile ecological environment has been effectively protected, and resource advantages have been transformed into development advantages, At this point, Yuheng Coal and Electricity has taken solid steps towards green development.

Management of subsidence areas

3、 Increase investment and promote comprehensive utilization of mine water

Xiaojihan Coal Mine has built a mine water pretreatment station, a domestic sewage treatment station, and a deep water treatment station, forming a multi integrated mine water recycling system. The domestic sewage treatment system has a treatment capacity of 1200m3/d and a mine water treatment scale of 1900m3/h. The treated purified water has reached the Class III standard for surface water, about 28% of which is used for mine production and domestic water. The remaining water is transported to Yulin Water Group through the main reuse water transmission line for unified allocation and use, achieving a 100% treatment rate for mine water and production and domestic wastewater, a 100% recycling rate, and all reuse without discharge.

Mine water treatment plant

4、 Anchoring the "dual carbon" goal and building a clean energy enterprise

Yuheng Coal and Electricity actively implements the national "dual carbon" strategy, implements energy-saving management through optimizing construction plans, selecting high-efficiency energy-saving equipment, strengthening energy-saving management and other measures, controls comprehensive energy consumption, and comprehensively promotes the efficient utilization and development of new clean energy. It has initially formed a clean heating mode of "exhaust heat+mine water waste heat+air compressor waste heat+gas boiler", which fully replaces coal-fired boilers and effectively solves the heating needs of wellhead antifreeze, building heating, bath hot water, etc., achieving "green energy intelligent heating" in Xiaojihan Coal Mine. Through the renovation of clean energy heating, it is expected to reduce CO2 emissions by 35435.9 tons, SO2 emissions by 110.97 tons, and NOX emissions by 100.08 tons annually. The energy-saving and emission reduction effect is significant, and low-grade heat sources can be converted into high-grade heat sources. Yuheng Coal and Electricity can further improve energy utilization efficiency, reduce environmental impact and resource consumption, improve energy structure, and achieve sustainable development of mines.

5、 Strive to overcome difficulties and fulfill the mission and responsibility of central enterprises

Yuheng Coal and Electricity actively responds to the call of "green mountains and clear waters are as valuable as mountains of gold and silver", adheres to the principles of "reduction, harmlessness, resource utilization, and high-value", and invests a large amount of resources in the comprehensive utilization of coal gangue. Firstly, it increases capital investment, implements external transportation and disposal projects, accelerates the cleaning of the gangue disposal site, and formulates safety technical measures for the management of the gangue disposal site. The gangue stored in the gangue disposal site is safely cleared in an orderly manner, and timely measures such as covering with dense mesh and setting up interception and drainage measures are taken to effectively prevent gangue spontaneous combustion and dust pollution, eliminate safety and environmental risks in the gangue disposal site. The second is to strengthen scientific research efforts, further study and demonstrate comprehensive utilization methods such as the preparation of ceramic particles and silicon-based materials from coal gangue, underground filling, underground sorting of coal gangue, and underground sorting of low calorific value coal, and formulate suitable approaches for the comprehensive utilization of coal gangue in the company. The third is to improve the level of governance, adopting methods such as platform shaping, loess coverage, and vegetation restoration to change the dirty, messy, and black image of the waste disposal site. Microbial in-situ fire extinguishing and rapid greening technologies are also applied to reconstruct the microbial ecosystem, improve the soil function of the waste disposal site microenvironment, and implement large-scale microbial rapid greening projects on the exposed surface soil of the waste disposal site to ensure harmonious integration with the surrounding environment.

These actions not only reflect the mission and strength of Yuheng Coal and Electricity, but also provide a clear commitment and determination for Yuheng Coal and Electricity to strive for ecological priority and low-carbon development, and provide solid support. Yuheng Coal and Electricity believes that through unremitting efforts, the beauty of green mountains and clear waters will complement the prosperity of mountains of gold and silver, creating a more sustainable, clean, and beautiful future.