Documentary on the management of the mining government of Zhongxiang City, Hubei Province
Relying on the rich phosphate mineral resources, choose a Central Purchasing and processing as one of the phosphate fertilizer, phosphorus chemical products base has begun to take shape; difficult to use in low-grade phosphate rock here became the "meat and potatoes", even if the tailings phosphorus The plaster is also transformed into a high-quality decorative material.
Recently, the Ministry of Land and Resources's proven reserves of mineral resources unified registration research team went to Zhongxiang City, Hubei Province, and praised the city's mining enterprises for their efficient use of resources and the path of green development. Management has rules and innovations and is at the forefront of the country."
Consolidate the foundation and promote supervision
Zhongxiang City is a mining city, in which phosphate rock is the dominant mineral, with a total of 827 million tons of proven reserves, ranking second in the province and known as the “Central Plains Phosphorusâ€. In recent years, the city has taken strict resource reserve management as the main line, and has made efficient use of resources as a starting point, innovative ways and means to embark on a path of efficient use of resources.
"Reserve is the basis of mining work. Only by burying the foundation of reserves and understanding the bottom of the family, can the top design, rational layout, and rational development and efficient use of resources." Chen Lin, the director of the Municipal Bureau of Land and Resources, said deeply.
In recent years, the bureau has insisted on establishing basic work such as reserve management accounts as the focus of reserves and “three rates†management, combining annual inspection of mining rights, mining registration of mining enterprises, implementation of mineral resources development and utilization plans, and other special inspections. Implement a system of regular verification of mine reserves and annual survey of mine reserves. For the mines that have been used, they will verify the mining area as a unit every 3-5 years, and prepare a verification report on the mineral resources reserves of the mining area. With the technical support of the Eighth Geological Brigade of Hubei Province and the Geological Exploration Institute of Hubei Province, the actual measurement was carried out and the mine mineral resources reserve report was completed on schedule.
“We implemented dynamic tracking and monitoring of mine reserves, timely grasped the changes in resource reserves, and fully implemented the dynamic management of reserves. It required mining enterprises to regularly submit in-hole downhole comparison maps, mining (exfoliation) project plans, establish reserve management accounts, and regularly press mines. The mineral deposits are settled by the sub-mineralization and sub-mining houses.†Chen Lin introduced that the mining enterprises such as Wangji Phosphate Mine, Dagukou Phosphate Mine, Fangmashan Zhong Phosphorus Company and Longhuishan Mining Company have been carefully prepared and strict. Execute the mining (exfoliation) technical plan, update the in-situ downhole comparison map, mineral resource reserve estimation map and other related maps in time according to the production progress, mark the mined positions on site, and do mine survey and mine geological work.
The full control of the resource family provides a scientific basis for local government scientific decision-making. In recent years, the Zhongxiang Municipal Party Committee and the Municipal Government have incorporated the scientific development and utilization of mineral resources into the overall situation of economic development, and have made overall plans. They have successively completed the integration plan for phosphate resources, the plan for setting up mining rights, and the plan for setting up Jingmen-Suiyang Phosphate Mining Rights. The implementation plan of the Pb-Plumite ore preparation survey and the preparation of the third round of the overall planning of mineral resources have clarified the overall objectives of “poor and rich, combined with total control, mining and selection, and recyclingâ€, providing a scientific basis for comprehensive utilization.
The effective management of reserves has also laid the foundation for mineral development supervision. In recent years, the bureau has intensified on-site inspections, key inspections, daily inspections, increased supervision and inspection of the exploitation and utilization of mineral resources, and timely found and stopped the investigation and investigation of unlicensed mining, indiscriminate mining, super-layer crossing, and poverty-stricken issues. The level and level of rational exploitation and utilization of mineral resources continue to increase. At the same time, the total amount is controlled, and the management method combining the annual mining plan and the monthly mining plan is adopted. The total amount of phosphate rock resources is strictly controlled, the mining volume of limestone mining enterprises is limited, and the mining enterprises are urged to organize production strictly according to plan. Strengthen the integration of mineral resources. In accordance with the scale of mining, bigger and stronger, the phosphate ore mine was rectified and integrated, and the city's phosphate mining enterprises were reduced to 12. At present, the city is working hard to promote the integration and reorganization of building stone mines.
In order to provide sufficient resources for the development of the mining economy, the city has also intensified its geological prospecting efforts, seized the opportunity to be included in the phosphate exploration and exploration area of ​​the province, and successively applied for a number of prospecting projects, and three new mineral deposits. Newly identified 127 million tons of phosphate rock ore and 782.8 million tons of limestone for cement.
Ways to improve transformation
To transform the resource advantage into an economic advantage and promote the transformation and upgrading of the mining economy, we must start from the selection of various links, improve the utilization mode, lengthen the industrial chain, and increase the added value of mineral products. The city is well versed in this.
In recent years, the city relies on advantageous enterprises to vigorously develop the mineral processing industry, promote the rational development and utilization of intensive processing and low-grade phosphate ore, and change the former raw ore of the primary product to the current phosphate or phosphorus chemical products.
"Under the guidance of the government, at present, the integrated production and operation mode of Zhongxiang City has been gradually established. It has built 1.5 million tons of Datunkou Phosphorus Mine and 1 million tons of Wangji Phosphorus Mine. 1.2 million tons of mineral processing project, the city's ore dressing scale reached 4.5 million tons / year." Chen Xiangsong, member of the Standing Committee of Zhongxiang City Municipal Committee.
What is more gratifying is that these advantageous enterprises have also exerted technological advantages while expanding their mineral processing capacity, and have overcome the problem of mineral processing technology that is difficult to utilize medium and low grade phosphate rock. In particular, after the major breakthrough in the low-grade phosphate ore flotation technology, the grade of phosphate ore was reduced from 20% to 15%, and 299 million tons of low-grade phosphate rock was revitalized.
The city also strengthened the support and guidance of phosphating market research and high-tech phosphating industry, strictly controlled the production of phosphate fertilizer, and guided existing enterprises to improve production technology, improve product quality, and upgrade phosphating products. At the same time, we will work hard to find and expand the market share of phosphorus chemical products, and gradually increase the proportion of high-concentration multi-element phosphate compound fertilizer in the phosphating industry, relying on high-grade one-mine mine and phosphate concentrate after beneficiation as raw materials, relying on Dagukou Key enterprises such as Chemical Co., Ltd., Yangfeng Zhong Pho Chemical Co., and Ezhong Chemical Company have developed new fertilizer production such as phosphorus slow-control fertilizer. At present, the city has initially built a production base of phosphate fertilizer and phosphorus chemical products with a certain scale.
“Dayukou Chemical Co., Ltd. has two mines, Dagukou and Wangji, and reserves more than 160 million tons of phosphate rock resources. It has now formed 2.3 million tons of mining, 2.7 million tons of ore, and 1.4 million tons of sulfuric acid. /year, phosphoric acid 400,000 tons / year, 1 million tons of monoammonium phosphate / year, phosphoric acid diamine 830,000 tons / year production scale. At present, they are working hard to build a domestic low-grade phosphate rock comprehensive utilization and phosphate fertilizer production demonstration base ', strive to achieve annual sales income of more than 3 billion yuan." Chen Lin introduced.
Promote green development with technology
It is necessary to Jinshan Silver Hill, but also to Guanghui. In recent years, the city has placed green mines and developed green mining in a prominent position, and advanced technology to achieve green development and sustainable development of the mining industry.
Phosphate mining enterprises in the city's jurisdiction have adopted the new technology of mining filling to prevent and conserve the cultivated land resources while preventing and controlling mining subsidence.
"By actively researching waste rock, tailings, and phosphogypsum cementation filling technology to treat the waste rock and beneficiation tailings, the mine waste rock can not be discharged from the wellhead and the beneficiation tailings are concentrated and disposed of, effectively protecting the cultivated land. The 'three rate' indicator requires the use of advanced scientific mining technology to fully recover the phosphate rock resources that cannot be recovered within the scope of the original goaf and caving area, and improve the mining recovery rate of phosphate rock."
Promote the application of comprehensive use of green technology, and dry and clean resources can not only use resources efficiently, but also protect the ecological environment. The city's coat margin company through eight years of testing, research and development, creating the only one in the utilization of low grade phosphate rock, 50,000 tons of gypsum-generation nano-crystal to be 30,000 tons of calcium magnesium ammonium phosphate green technology production lines. In October 2015, the technology was promoted by the Ministry of Land and Resources as “Advanced and Applicable Technology for Mineral Resources Saving and Comprehensive Utilizationâ€.
"China's low-grade phosphate ore resources below 20% are abundant, and the calcium content is higher than that of phosphorus. We use these phosphate ore and industrial by-product hydrochloric acid to adopt the process route of 'first calcium after magnesium' and finally create two high New quality products - nano whisker gypsum, ammonium phosphate, calcium and magnesium, and the development of nano-spindle gypsum to develop downstream high-value-added products, achieving the recycling economy of waste-grade phosphate rock and turning waste into treasure." The person in charge of the company said, "We are currently taking advantage of the exclusivity of technology, the uniqueness of the project, the originality of the product, and vigorously develop low-grade phosphate ore resources to replace natural gypsum to produce nano-whisker gypsum. Now we are planning a supporting investment of 200 million. Yuan, completed an annual output of 40,000 tons of B-nano whisker gypsum conversion and interface treatment equipment, 20 million green nano-whisker gypsum architectural decoration wire, 10,000 tons of nano-nour whisker gypsum automatic production line, 30,000 tons The ammonium phosphate calcium magnesium production unit can realize an annual sales income of 155 million yuan and a profit of 73 million yuan after being put into production."
Chen Lin is also full of praise for this technology: “A technology can change an industry. This technology not only achieves efficient use of low-grade phosphate rock, but also creates an inexhaustible and endless quality regeneration. Resources-gypsum can not only greatly improve the utilization period of phosphate rock resources in China, but also effectively contain the safety hazards caused by mining gypsum resources and save the mining of gypsum mines."
At the same time, the city also strongly supports and promotes the Chuan Chemical Company and Chunxiang Chemical Company's annual output of 110 million square meters of paper gypsum board project, and strives to make more than 80% of phosphogypsum comprehensively utilized to achieve "resources, products, "Renewable resources" and the circular economy growth mode of ecological environment protection.
The city also vigorously guides phosphate mine enterprises to build green mines, and mainly builds large mines such as Dagukou Company and Fangmashan Zhong Phosphorus Mining, and carries out the construction of green mines and green mining demonstration zones, and implements mine restoration and management and mine land reclamation. It has built a diversified, multi-channel and multi-form mine ecological geological environment restoration and management mechanism.
Introduction
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