Mine management: green mountains will eventually deliver

From the roar of machines, the dust flying, the mountains covered with scars, to the restoration of green, birds singing and flowers, everywhere green, one by one according to the high standard of construction of green mines springing up in the land of China. According to the announcement issued by the Ministry of Natural Resources, in 2020, 301 mines in the country will be included in the list of green mines, which are reasonable, intensive and efficient development and utilization of mineral resources under the premise of safety and environmental protection, and realize the harmonious unity of man and nature.

State action

"The sky is clear and full of dust, it is raining and covered with mud, it looks very vicissitudes, and it is all wooden houses and wooden shelves." Sewage treatment, environmental protection facilities, nothing." "The sun is the same as the moon, the sunny day is the same as the cloudy day, the nostrils are the same as the chimney." An industry insider introduced that this is the traditional mining environment, just for mining and mining, there are no environmental protection measures, there is no long-term planning.

The traditional extensive mining method wastes resources and destroys the environment. "Entering a high-quality development stage and continuing on the same path will not work. Mining companies should abandon the past concept and change the way of life." China green mine promotion Association president Shi Jingxi said. More and more enterprises also realize that mine resources and ecological environment are the life of enterprises, maintain the source of living water, build green mines, in order to achieve sustainable development.

Green mine is not simply greening, but in the whole process of mineral resources development to achieve comprehensive utilization of resources, energy conservation and emission reduction, protection of the ecological environment, mine harmony and other requirements, not only to strictly implement scientific and orderly mining, but also to control the disturbance of the mining area and the surrounding environment within a controllable range, is a complex systematic project.

This system project started at the beginning of this century. In 2008, the National Mineral Resources Plan (2008-2015) took the development of green mining and the construction of green mines as a key task, and various localities began to pilot and explore the green mine model. In 2017, the programmatic document for promoting the construction of green mines - the "Implementation Opinions on Accelerating the construction of green Mines" jointly issued by six ministries and commissions was issued, requiring that through five years of efforts, the overall image of the traditional extensive and wasteful mining industry should be basically reversed, and a new model and new pattern of mining development should be formed in line with the requirements of ecological civilization construction. At this point, the construction of green mines has risen to the national action.

Green mining

Greatly reduce solid waste discharge, underground filling green mining, three-dimensional intensive factory construction, mine land reclamation, mining heritage tourism development after reclamation and greening, waste and energy reuse, repair damaged vegetation and surrounding environment... In accordance with the strategic policy of "giving priority to conservation, protection and natural restoration", for more than a decade, batches of national green mine construction pilots have landed and blossomed in the country, and constantly innovate a new model of green mine construction.

Green and orderly mining can fundamentally eliminate the damage to the environment and ecology caused by mining. Green mining begins with green exploration. The new technology of "drilling instead of trough", such as air diving hammer and pipe core drilling, developed by Chengdu Prospecting Technology Institute of China Land Survey Bureau, has transformed the disturbed area from a big ditch in the past to a drill hole, which can not only achieve the expected prospecting effect in the thicker section, but also reduce the disturbance to the ecological environment to the greatest extent.

In the mining process, scientific and efficient green mining technology and energy-saving and efficient equipment must be adopted to ensure that the mining recovery rate, mineral processing recovery rate and comprehensive recovery rate of resources meet the new requirements of environmental protection.

On the intelligent centralized control platform of Shanbei Mining Hanjiawan Coal Company, a worker sits in front of a computer screen and adjusts the position of the roller and the support mode according to the changes in the work site, which can minimize the inflow of gangue. A shearer driver of Hanjiawan Coal Company said: "In the past, when I controlled the cylinder cutting coal on the working face, when I encountered large coal dust, I relied on my experience to adjust the position of the top and bottom knives, and if I was not careful, I would cut gangue." Now, you can see the work surface clearly on the screen, and the operation is more accurate."