Coal is the main energy source in China and plays an extremely important role in social and economic development. The development and utilization of coal not only play a huge driving role in the social economy, but also have a significant impact on the environment. Coal gangue and coal-bed methane are the main wastes generated in the process of coal development, and have long been regarded as harmful substances and disastrous gases by the coal industry. After the Third Plenary Session of the 11th Central Committee of the Communist Party of China, with the continuous deepening of economic system reform and the healthy and rapid development of China's industry and agriculture, people have gradually realized that these waste materials still have a usable side in the face of increasingly scarce energy. Especially in the past twenty years, the coal sector has conducted many explorations and production experiments in the development and utilization of coal gangue and coalbed methane, and has achieved a number of results. Practice has proven that as long as we change our mindset, strengthen scientific research, and pay attention to development according to local conditions, the secondary utilization of mineral resources in the coal production process is not only completely feasible, but also has enormous potential; Not only can harm be turned into profit and waste into treasure, but it can also save energy and achieve significant social and economic benefits. Coal gangue is solid waste discharged during the excavation, mining, and washing processes of coal. It is a mixture of carbonaceous, muddy, and sandy shale with low calorific value. Contains 20% to 30% carbon, and some contain humic acids. China has accumulated about 1000Mt of coal gangue over the years, and continues to discharge about 100Mt annually. Not only does it accumulate land, but it can also self ignite and pollute the air or cause fires. In recent years, with the rapid rise of research awareness on the comprehensive utilization of coal gangue in various industries, how can coal gangue be turned into treasure? Many utilization channels have been developed both domestically and internationally. The basic principle is to distinguish and utilize coal gangue based on its properties, and combine various utilization methods to form a certain development scale and comprehensive utilization system, in order to achieve the best economic benefits. According to the actual situation in China, its use can be roughly divided into five aspects: 1. Underground filling in coal mines. On the basis of gradually reforming the coal mining process, use coal gangue to directly fill the goaf underground or to fill the goaf underground after processing on the ground. 2. Filling, reclamation, and paving of coal mine surface subsidence areas. 3. Coal gangue power generation. Coal gangue with high carbon content and high heat generation can be used as a fluidized bed and circulating fluidized bed for power generation. 4. Production of building materials such as coal gangue bricks, cement, and lightweight aggregates. 5. Extract sulfur concentrate and other chemical products from coal gangue. No matter which way coal gangue is used, the final coal gangue is comprehensively utilized by classification processing equipment such as jaw crusher, impact crusher, Raymond mill, overpressure trapezoidal mill, vertical mill, European trapezoidal mill, etc. With excellent quality, comprehensive technical support, and professional after-sales service, Shibang Machine Crusher and Pulverizer equipment provide integrated and complete production design solutions for many users in the power, cement, and mining industries, which have been strongly recognized and welcomed by customers. Shibang Machinery will continue to uphold the corporate philosophy of piety, precision, rigor, and harmony, striving for excellence, and serving customers both domestically and internationally with its consistent and perfect quality. The jaw crusher of Shanghai Shibang Machinery Co., Ltd. has the characteristics of large crushing ratio, uniform product particle size, simple structure, reliable operation, easy maintenance, and economic operating costs. Composed of a complete crushing production system, widely used in mining, cement, chemical, railway, construction, and other fields. The impact crusher (impact crusher) can handle various coarse, medium, and fine materials (coal gangue, granite, limestone, concrete, etc.) with a side length of no more than 500mm and a compressive strength of no more than 350MPa. It is widely used in industries such as hydropower, highways, artificial sand and gravel, and crushing. Shanghai Shibang conducted on-site survey, utilizing terrain trends, reasonable configuration, compact equipment connection, small footprint, increased production, and saved belt conveyor length and project investment. The product has a unique structure, keyless connection, high chromium plate hammer, and a unique impact lining plate; Hard rock crushing, efficient and energy-saving; The product has the advantages of being cubic in shape, adjustable discharge particle size, and simplified crushing process. The LM vertical grinding machine is the latest type of grinding machine designed by experts from Shibang Company based on their long-term experience in mill research and development, and in accordance with the requirements and suggestions of Chinese users from mill experts in the United States, Germany, Japan, and other countries. It is based on the original high-pressure suspension roller grinding machine and has been carefully researched and designed. The LM series vertical grinding machine mainly consists of a powder selection machine, a grinding roller device, a grinding disc device, a pressure device, a reducer, an electric motor, a shell, and other parts. The separator is an efficient and energy-saving powder selection device. Grinding roller is a component used to crush and crush materials. The grinding disc is fixed on the output shaft of the reducer and is the place where the grinding roller compacts the material. The pressurization device is a component that provides sufficient pressure to the grinding roller to crush the material in order to provide grinding pressure. It is a new type of large-scale industrial milling equipment with advantages such as low investment cost, low operating cost, strong drying ability, easy operation, reliable operation, convenient maintenance, and environmental protection. It is widely used in industries such as power generation, cement, metallurgy, chemical industry, non-metallic minerals, etc. It is an ideal equipment for the milling industry that integrates crushing, drying, grinding, and grading transportation. The super pressure trapezoidal mill and the European trapezoidal mill series are mainly suitable for grinding of metallurgical, building materials, chemical, mining and other mineral products, such as gangue, quartz, feldspar, calcite, talc, barite, fluorite, rare earth, marble, ceramics, bauxite, manganese ore, iron ore, copper ore, phosphate rock, zircon sand, slag, water slag, cement, etc. The complete machines of the overpressure trapezoidal mill and the European trapezoidal mill series are of vertical structure, with a small footprint and strong completeness. Moreover, the main transmission device adopts a sealed gearbox, ensuring smooth transmission. The important components of the grinding machine are all made of high-quality steel, so the entire machine is wear-resistant and reliable. The electrical equipment of the grinding machine adopts centralized control, and the selection is advanced and reasonable, with a high degree of automation. The vibrating feeder is small in size, light in weight, easy to adjust and maintain, and very energy-efficient. The comprehensive utilization of coal gangue is only a part of it, and there are many mineral resources that can be reused during the coal development process. For example, mine water is also a major threat to coal mining. As long as management is strengthened and a combination of drainage and supply is implemented, it can not only turn harm into profit, but also effectively solve the water resource problems required by mining areas. In coal seams and their surrounding rocks of different times in China, paragenetic associated mineral resources and beneficial elements are very rich. High alumina clay, kaolin, bentonite, diatomite, oil shale, germanium, gallium, uranium, vanadium, etc. can be enriched in some mining areas or coal seams to meet industrial requirements. Therefore, for comprehensive utilization of coal resources, investment in secondary utilization of coal resources should be strengthened.