Reporter Dong Zhanxuan
The "progress bar" of key projects continues to be full, and the "acceleration" of engineering construction is constantly refreshed...... Walking into the Yuanqu Economic and Technological Development Zone, from the construction site to the production workshop, the roar of the machine came and went, and the production line operated efficiently, setting off a "big grasp of the industry, a big grasp of the enterprise, a big grasp of the project, a big grasp of the transformation" of tackling the upsurge, played the "start of running, hard work to win the whole year" of the spring song. During this period, Shanxi Yijia Environmental Protection Technology Co., Ltd. has an annual processing capacity of 300,000 tons of copper smelting waste slag and two production lines of the first phase of the industrial solid (hazardous) waste comprehensive utilization project (Zhongtiaoshan Group) have all been put into operation, effectively taking into account the economic, social and ecological benefits of the county, and injecting strong momentum into Yuanqu County to promote high-quality development and deepen all-round transformation.
In recent years, the scientific and technological innovation, high-end and green development of the mainland copper industry has continued to accelerate, and a number of major projects have been implemented in copper green manufacturing, copper smelting waste recycling, copper smelting polymetal recycling, etc., effectively making up for the weak links in the industry and leading the green development of the industry. Yuanqu County is located in the hinterland of Zhongtiao Mountain, rich in mineral resources, with proven copper reserves of 300 million tons. At present, 210 million cubic meters of tailings are produced by copper mining and smelting, and the emissions continue to increase at 9 million tons per year. In order to effectively solve the problem of tailings management, promote the development of circular economy, and protect and improve the ecological environment, Yuanqu County takes Yuanqu Economic and Technological Development Zone as the main position, accelerates the construction of a new development pattern, strives to build a nationally renowned comprehensive utilization base of tailings, and takes the comprehensive utilization of copper tailings as an important direction for the development zone to promote green, low-carbon and circular development, and unswervingly takes the road of high-quality development of ecological priority and green and low-carbon.
As the largest non-ferrous metal hazardous waste terminal disposal enterprise in the province, Shanxi Yijia Environmental Protection Technology Co., Ltd. was established in September 2018, with a leading domestic solid (hazardous) waste resource recycling technology integrating oxygen-rich side blowing, chlorine and oxygen roasting, and comprehensive recovery (rare and precious metals), and is a provincial-level "specialized, special and new" enterprise and a provincial-level high-tech enterprise. Its annual treatment (Zhongtiaoshan Group) 300,000 tons of copper smelting waste slag and industrial solid (hazardous) waste comprehensive utilization project, belongs to the key engineering project of Shanxi Province and the "1311" major project of Yuncheng City, mainly using copper smelting waste slag and industrial solid (hazardous) waste as raw materials, effectively separating and recovering valuable metal components such as gold, silver, copper, nickel and other valuable metal components in waste slag, and recycling, harmless, and reducing the disposal of secondary pollutants in mining and dressing, chemical industry, smelting and other industries, so as to realize the "turn" danger "into safety, change " waste "into treasure, 'Green' and 'profit' double harvest".
It is understood that Shanxi Yijia Environmental Protection Technology Co., Ltd. annual processing (Zhongtiaoshan Group) 300,000 tons of copper smelting waste and industrial solid (hazardous) waste comprehensive utilization project has started construction since 2020, the project is divided into two phases, the first phase of the new annual processing (Zhongtiaoshan Group) 300,000 tons of copper smelting waste slag production line, environmental protection facilities, raw material storage and batching workshop, product storage plant, equipment purchase and installation, etc. "At present, Shanxi Yijia Environmental Protection Technology Co., Ltd. has an annual processing capacity of 300,000 tons of copper smelting waste and industrial solid (hazardous) waste comprehensive utilization project of 300,000 tons of copper smelting waste and industrial solid (hazardous) waste comprehensive utilization project, and the first two production lines have been put into operation, and the development momentum is good. Du Lun, director of the comprehensive management department of Shanxi Yijia Environmental Protection Technology Co., Ltd., told reporters, "The two production lines can digest and dispose of 300,000 tons of copper smelting waste and 150,000 tons of industrial solid (hazardous) waste every year, so as to achieve 'zero emission' of waste residue and waste gas, and truly realize resource recycling." ”
Walking into the smelting workshop of Shanxi Yijia Environmental Protection Technology Co., Ltd., the reporter saw that the "material bricks" made of copper, nickel and precious metal materials were neatly stacked. Huge production facilities rumble, batches of "bricks" into the production line, are refined out of nickel, nickel copper, nickel-copper alloy and other valuable metals, the remaining tailings through other processes into new building materials products, effectively realize the copper smelting waste slag and industrial solid (hazardous) waste "eat dry and squeeze" "stone into gold" and full resource utilization. "As far as the extraction of iron concentrate powder is concerned, we mainly extract the valuable metal iron from copper smelting waste and industrial solid (hazardous) waste through the wet washing process in five steps, and the ceramic filter behind me is the last step. Du Lun told reporters, "through vacuum adsorption and dehydration to extract iron concentrate powder, at present, our production line technology is very mature, the equipment has been automated, can process 1,000 tons of copper smelting waste slag per day, and produce 500 tons of iron concentrate powder." ”
In recent years, taking advantage of the "provincial-school cooperation" and "talent prosperity", Shanxi Yijia Environmental Protection Technology Co., Ltd. has cooperated with Mining and Metallurgical Technology Group Co., Ltd., Shanxi Chemical Industry Society, Taiyuan University of Technology, Shaoxing New Material Industry Technology Research Institute of Science and Technology, etc., to build a technical exchange platform for industry-university-research cooperation and promote the transformation of more scientific and technological achievements into real productivity. At the same time, the company has established a scientific and technological research and development center, set up a strong scientific research team, formed a solid technical support, and strived to enhance the company's scientific and technological innovation capabilities and core competitiveness. At present, with a total investment of 75 million yuan, the annual processing of 300,000 tons of copper smelting waste slag chlorination roasting workshop production line project has been put into use. The chlorinated roasting production line is the fourth chlorine and oxygen roasting production line jointly developed by Shanxi Yijia Environmental Protection Technology Co., Ltd. and Mining and Metallurgical Technology Group Co., Ltd., which adopts the national key energy-saving and low-carbon new technology, with an annual output of 200,000 tons of iron pellets, a metal recovery rate of 95%, a balling rate of 99%, and tailings can be used to produce new building materials and effectively realize resource recycling. Zhang Hao, deputy general manager of Shanxi Yijia Environmental Protection Technology Co., Ltd., told reporters.
In 2023, Shanxi Yijia Environmental Protection Technology Co., Ltd. will closely focus on the development goal of "expanding the scale of hazardous waste disposal and deepening the comprehensive utilization of resources", continuously increase technology investment, introduce advanced technology and equipment, and play a good role in increasing production and reducing consumption, achieving an output value of 500 million yuan and profits and taxes of 20 million yuan.
"Entering a new era, the mainland's determination to promote the construction of ecological civilization is unprecedented, Shanxi Yijia Environmental Protection Technology Co., Ltd. is growing up step by step in the trend of ecological priority and green development. Duan Chao, chairman of Shanxi Yijia Environmental Protection Technology Co., Ltd., told reporters, "With the care and support of party committees, governments and relevant functional departments at all levels, Shanxi Yijia Environmental Protection Technology Co., Ltd. is based on the company's own development orientation and market demand, focusing on the comprehensive utilization of solid (hazardous) waste, expanding the scale of production, actively promoting the chlorine and oxygen roasting project to be put into operation to achieve results, continuously improving the level of production technology and equipment and production capacity, and making every effort to build a national industrial solid (hazardous) waste resource comprehensive recycling. The high-tech industrial base of scientific research innovation and technology transformation has made positive contributions to accelerating the construction of a new development pattern and striving to build a nationally renowned comprehensive utilization base for tailings in Yuanqu County while helping the ecological protection and high-quality development of the Yellow River Basin with practical actions. ”