“We have accelerated the construction of the project with quality and quantity guaranteed in accordance with the established time node. The main project of the theater has been completed, the internal lighting, sound, dance and scenery making equipment have been installed, and the business and hotels are making preparations before opening.” The reporter recently learned from Jinneng holding equipment manufacturing group that the Huayi Brothers Media Corporation(300027) Star Theater project developed by Jinneng holding equipment manufacturing group has entered the final sprint stage. According to Wu Zhendong, chairman of the group’s Taihang ancient academy Cultural Tourism Co., Ltd., after completion, it is expected to provide more than 2600 jobs and expand new channels for the transformation of old mines and the diversion of personnel.
“Laokuang” is the predecessor of the theater – Gushuyuan Mine, which was founded in 1958. After more than 60 years of mining, it was officially closed in November 2017. In May of the next year, Gushuyuan Mine determined the cross-border model of “coal mine + culture + tourism” and began to extend to the emerging cultural tourism industry.
The well is sealed, and the coal and roadway left underground are still there; The mine is closed, and the land and idle factories on the ground are still there. It’s a pity that people are scattered in the mine and simply abandon all kinds of resources. It is particularly noteworthy that if the mine is closed properly, it will not only pollute the environment, but also have great potential safety hazards. According to the prediction of major consulting and research projects of the Chinese Academy of engineering, the number of coal mines to be closed in China will reach 15000 by 2030. It is urgent to close the mine for disposal, but how to deal with it scientifically and properly and turn “abandoned children” into “favorite children” has become a difficult problem in the industry.
closed pit mine is by no means closed
Closing a mine does not mean there is no value. The reporter learned that Gushuyuan Mine is one of the few large-scale mines located in the center of the city, surrounded by historical buildings such as Cheng Hao academy and Wenchang Pavilion opened by Cheng Hao, a famous educator in the Northern Song Dynasty. The Huayi Brothers Media Corporation(300027) Star Theater, transformed from traditional coal mines, has revived the “exhausted” resources.
Will the new model work? In fact, Jinneng holding group, which belongs to the mine, has tried for a long time. The reporter visited Shanxi Datong Jinhuagong National Mine Park earlier. Nanshan well of Jinhuagong mine, which once produced millions of tons of raw coal, has become a national 4A scenic spot. In addition to visiting the century old winch, coal flow system and other production relics on the ground, the site can go more than 300 meters underground to observe the Jurassic coal measures dating back to 140 million years, and list the changes of coal mining technologies such as original coal mining, blasting mining, general mining and fully mechanized mining at the original site of the working face. The full “smell of coal” has attracted nearly 2 million tourists in the past 10 years.
The environmental problems that make many closed mines headache have also been properly solved here. Liu Wei, a staff member of Jinhuagong National Mine Park, said that in line with the concept of “solving the problem of coal enterprise transformation and protecting the ecological environment”, the mining environment has been reshaped. “The 2.7 million ton Nanshan gangue hill in the park is the key area. Through rolling and covering soil greening layer by layer, reshaping the landform in stages, batches and subregions, planting pine, Chinese pine and other plants, and adopting anti-seepage technology to ensure the survival rate of vegetation, the greening area of gangue hill is 80000 square meters, and the greening coverage rate reaches 86%.”
“The closed pit mine is by no means closed.” Song Nan, a specialist in the Environmental Protection Office of the planning department of Shaanxi coal group Tongchuan Mining (bureau) Co., Ltd., also has experience, “From 2014 to 2016, five pairs of mines were closed successively, production stopped, and work continued. For example, a large number of stacked gangue hills not only occupied the land, but also caused dust pollution and spontaneous combustion, which were incompatible with the surrounding environment. We adopted the method of ‘waste elimination and slope protection, loess coverage, reclamation and greening’, of which four mines had completed treatment works at the end of last year, and their ecological functions were basically restored.”
related to pollution reduction, carbon reduction and resource reuse
To be responsible for the closure of mines is not only the task of one mine and one enterprise, but also related to the “double carbon” strategy. Li Shuzhi, vice chairman of the Special Committee on land reclamation and ecological restoration of China coal society, admitted that due to its large scale and high intensity, the impact of coal development is also reflected in the “carbon effect”. “As one of the three major carbon pools of the earth, the soil texture changes due to mining, which may affect the carbon cycle in the soil. The destruction of surface vegetation will affect the carbon absorption capacity of the mining area.”
“Even if it is to withdraw from the coal mine, the ecological environment problem can not be ignored.” Li Shuzhi, for example, pointed out that comprehensive utilization of gangue hills after ecological treatment can directly reduce carbon emissions, reduce environmental pollution and avoid waste of land resources; Reclamation and utilization of damaged land or construction waste land that has reached the production life. The construction land has the function of carbon source. The renovation of forest, grassland and wetland can increase the vegetation coverage and realize the conversion from carbon source to carbon sink.
Song Nan further told reporters that in the early stage, the investment in the treatment of each mine was about 7.5 million yuan, and in the later stage, maintenance, custody and other work should be carried out continuously. “We are also discussing plans, such as using the repaired land to develop photovoltaic projects, hoping to revitalize valuable ecological assets and give full play to the sustainable value of idle assets of closed mines.”
Realizing the reuse of closed mines — this is also a long-term concern of Yuan Liang, academician of the Chinese Academy of engineering and President of Anhui University of technology. “By 2020, more than 12000 mines have been closed nationwide, with a large amount of available resources.” Yuan Liang, for example, according to the prediction that 15000 mines will be closed in 2030, the available underground space is about 7.2 billion cubic meters, the land resources are about 30 square kilometers / mine, and many mining areas are rich in renewable energy resources. “For example, more than two-thirds of China has good Cecep Solar Energy Co.Ltd(000591) resources, basically covering all abandoned mine areas, especially Xinjiang, Gansu and Inner Mongolia, with more favorable utilization conditions. Another example is the huge underground space with high drop formed by underground mining and open-pit coal mining, which provides conditions for the construction of underground distributed pumped storage power stations.”
take the road of energy, resource and function
“The development and utilization of abandoned mine resources is not only an important strategic deployment for building a clean, low-carbon, safe and efficient energy system, but also an important measure to practice the goal of ‘double carbon’.” Based on the investigation of closed mines in Shanxi, Shaanxi, Inner Mongolia, Ningxia and Gansu in recent 10 years, Yuan Liang put forward the idea of classification, accurate development and utilization.
Yuan Liang said that due to the large number of phased abandoned mines in China and the extremely complex geological conditions, it is difficult to copy the existing models abroad. However, at the same time, the overall development and utilization strategy is lack, the basic theory is weak, and the key technology is immature. Only functional utilization such as gas and oil storage and industrial tourism have been explored. It is suggested to systematically study the ways and schemes of development and utilization from the perspective of energy, resource and functionality. “For example, we will carry out demonstration construction of projects such as pumped storage and energy storage in abandoned mines, strengthen policy guidance, improve systems and mechanisms, and gradually expand the promotion. We will strengthen the basic research on ‘pumped storage + multi energy complementary distributed smart energy system’ in abandoned mines, list key technology research into the national key R & D plan, and strengthen the research on common basic technologies and key equipment manufacturing.”
Li Shuzhi believes that restoring the ecosystem function of the mining area is not a simple vegetation reconstruction, but an overall improvement of the function of the damaged or degraded ecosystem, so as to improve the carbon sequestration and storage capacity of the ecosystem the restoration and treatment of abandoned mines should transition from single land remediation and greening to comprehensive restoration of ecological functions, and rebuild a complete functional ecosystem as a whole. “Comprehensively consider the diversity, complexity, multifactorial and regional characteristics of ecological problems in the mining area, give full play to the leading role of land and space planning, and according to the land use determined in the planning, it is suitable for forest, farming, water, construction and waste.”
\u3000\u3000 “Our wangshiao coal mine was the largest mechanized shaft in Northwest China at that time. After the mine was closed, relying on the landscape, forest, field and lake ecological protection and restoration project of the local government, the original gangue hill was restored and treated, which is coordinated and unified with the Coal Mine Industrial Heritage Park we are implementing, so as to not only solve the contradiction between coal gangue pollution and environmental treatment, but also give full play to the ecological role and scenic tourism function while repairing and rebuilding. There will be another kind in the future We also hope to have the opportunity to participate in projects that seem good. ” Song Nan spoke out.
