To realize coordinated and sustainable development of mine ecology and economy

With the development of China's mining resources integration trend, the traditional model of "small scale, large quantity and low efficiency" will definitely be eliminated and reformed, and the existing sand and gravel mining enterprises need to take the high-quality construction of green mines as an opportunity to accelerate the whole process of energy saving and environmental protection.

China's non-metallic sand mining industry needs to strengthen the efficient application of energy saving and environmental protection measures to promote the early realization of high-quality development of the industry.

Measures for efficient utilization of mining and production resources

First of all, the sand and gravel mine to green mining as the overall requirements, combined with clean production and green storage technology, to achieve the source and process of green and modern scientific and technological overall layout, put an end to the traditional extensive development model and production methods. Secondly, through technical means, improve the level of resource utilization efficiency of sand and stone, with the level of high-tech equipment to improve unit production efficiency, for sand mining and utilization, to eat dry squeeze, for the production process of the side material, residual material to achieve 100% utilization, do not leave tailings, all become resource utilization, such as: Stone powder collection can be used for the production of cement, concrete, mud powder for new wall materials or environmental protection engineering construction materials around the mining area; For the main, common and associated resources of the mining area, comprehensive exploration should be done in the early stage, comprehensive mining and utilization plans should be set up, and the principle of high quality and optimal use and cascade utilization should be taken as the general goal to improve the comprehensive benefit. Finally, the topsoil and residue produced in the mining process should be used 100% in combination with environmental management, pipe ditch backfilling, original landform restoration, land reclamation, etc. For a large amount of sediment in the waste water of sand and gravel production, the process of sludge cleaning and dehydration is adopted to separate the water and sediment and use them as resources respectively, and the sediment is used for the surrounding ecological utilization. Sand and stone deposits come from ecological resources and should be fully utilized.

Energy saving and energy efficient application measures

According to the requirements of the country to promote the green and low-carbon transformation of energy development, China's energy supply mode has also changed to the direction of green and efficient, safe and stable, close to users, and local materials. The sand and gravel mining industry needs to establish an energy low-carbon application layout plan and establish a whole-process energy consumption monitoring and accounting system. The use of the Internet of Things, information technology and automation technology management system to achieve the purpose of energy saving, electricity saving and money saving, which is also an inevitable trend of technological development.

How to reasonably plan to reduce the energy consumption in the process of mining, production and overall operation, and realize the synchronous operation of energy saving, electricity saving and economic benefits is not only a matter that the management of mining enterprises must consider, but also a matter that the industry must pay attention to, and the government and competent departments must do a good job. It is very important to strengthen energy saving and efficiency increase in mining area. For example, the selection of advanced energy-saving and efficient construction machinery, one-time investment long-term benefit; In the automatic operation, the energy recovery system is added, and the potential energy generation technology can be used to save energy for the mining area with large drop. In addition, gravity potential energy can be continuously recovered in the mining process to improve energy recycling efficiency. For example, in the top-down conveying process of mineral materials, with the increase of mineral materials on the conveyor belt, the gravity of the mineral itself gradually increases along the conveyor belt, so that the conveyor belt pulls the drum to accelerate rotation, so that the gravity potential energy can be recovered through the drum to drive the generator to generate electricity. In addition, in the selection of mining technology, new blasting technology and measures to increase the efficiency of blasting energy are adopted. According to the natural conditions of different mining areas, solar energy, wind energy, geothermal energy, etc., can be selected to achieve multi-energy complementarity; Promote the planning of transportation links and the green and low carbonization of transportation means, such as the construction of closed pipeline transportation from mining areas to transfer stations or the adoption of new energy transportation means; In addition, the mining area can also use photoelectric conversion to achieve LED automatic lighting and domestic electricity, conditional enterprises can also make full use of biomass energy as a supplementary energy in the mining area, for heating or canteen gas supply. In short, it is necessary to adopt comprehensive measures and means to form a global efficient energy application model in mining areas.