Prediction and potential analysis of green metallurgy innovation development situation

The second is to break through disruptive and core key technologies. Vigorously promote the technological change of the metallurgical industry, achieve the improvement of reaction efficiency from the atomic and molecular level, and strive to solve the problems of high energy consumption, high material consumption and high pollution in the metallurgical process from the source. To study and reveal the process mechanism of molecular movement, transfer, collision, adsorption and reaction under various environments and different scales in metallurgical process, and to coordinate the multi-scale regulation of molecular transfer and reaction process; Develop metallurgical process strengthening technologies, such as microreactors, super-gravity, microwave, process coupling, etc., and focus on developing forward-looking technologies such as hydrogen metallurgy, critical metallurgy, unconventional resource metallurgy, carbon-free aluminum metallurgy, arsenic metallurgy, and intelligent metallurgy.

2. Deployment of major innovation projects in the metallurgical industry

The first is the future resource/energy security innovation project. Comprehensive use of remote sensing, information and other technologies, the construction of resource management information system and information sharing mechanism. The main research contents include: (1) Intelligent steel smelting technology, intelligent design of iron and steel smelting from the basic science of materials (molecular and atomic microscopic dimensions), process technology science (process and equipment mesoscopic dimensions), process engineering science (process and factory macroscopic dimensions) and other aspects; ② Big data smelting steel technology, relying on the big data platform for online monitoring, blast furnace physical examination, report query, process calculation, real-time warning, quality traceability, furnace length report, expert consultation, etc.; ③ Intelligent robot full process smelting steel technology, instead of manual steel smelting full process production work, people from the bitter, tired, dirty, poor working environment to liberate, significantly improve production efficiency and product quality. In addition, demonstrate the development strategy of metal resources/energy, improve the constraint and management system related to resource protection; We will support the development of energy and resources in Marine and other fields and expand the channels for industrial resource supply. Encourage enterprises to "go out", high-quality participation in the development of global mineral resources and smelting technology industrialization application.

The second is the smelting innovation project of recycling renewable resources. In view of China has not yet established a perfect waste metal recycling system, facing the problems of weak industrial foundation, low concentration, technical equipment level and product added value to be improved, strengthen the basic research on recycling of renewable resources, establish efficient and clean separation extraction methods, develop primary smelting with urban mineral utilization technology, and achieve efficient recycling of resources. Build an integrated industrial chain including waste - recycling and processing (recycling) - products or production raw materials (recycling), alleviate resource constraints, reduce environmental pollution, and promote the development of social circular economy. The utilization and consumption of bulk solid waste and smelting slag in the process of mining resources development is also a subject of scientific and technological innovation research and development.

Third, clean energy alternative innovation project. Introduce clean energy such as hydrogen energy, solar energy, wind energy, hydropower, coal to gas, break through multi-energy synergistic and complementary technologies, and increase the proportion of clean energy use in the metallurgical industry; Develop new methods and paths for energy recovery such as waste heat utilization, form key processes and equipment, and promote cross-process and cross-industry energy recovery and utilization. The key research contents include: (1) Considering the ecological capacity of clean energy enrichment areas, encouraging the transfer of electrolytic aluminum production capacity to renewable power enrichment areas, from self-provided electricity to grid electricity conversion, and implementing emission reduction from the source; (2) Fully implement the transformation of natural gas to replace producer gas, and eliminate the production process of high energy consumption and high pollution gas; (3) Make full use of the calorific value of municipal waste, freeze and crush and partially replace pulverized coal to achieve circular economy industry link; Encourage enterprises to adjust the energy use structure, make full use of hydropower, wind power, photovoltaic, nuclear power and other resources, focus on promoting the application of hydropower, and promote the metallurgical industry carbon peak action.

The fourth is the clean smelting innovation project of the whole life cycle vision. For key categories such as steel and aluminum, promote the ecological design of the metallurgical industry, precise control of key production and pollution nodes, break through industrial link technologies such as cogeneration, promote the optimization of the whole process of resource and energy allocation, improve the level of pollution control technology, and achieve pollution and carbon reduction. (1) In the steel industry, a calculation method of the life cycle inventory of metallurgical products and a carbon footprint model of the steel industry reflecting the characteristics of closed-loop recycling were established; Combined with the progress of carbon capture technology, the flue gas recovery and treatment technology of CO2 capture in iron and steel smelting is developed, taking into account low-cost carbon capture and resource/productization. (2) In the aluminum industry, the bauxite mining link reduces the phenomenon of "mining rich and abandoning poor" in small mines, and reduces the mining loss by improving mining technology; The recovery rate of alumina in Bayer process was improved by technological progress in alumina smelting. The primary aluminum electrolytic link speeds up the elimination of backward electrolytic cells, and constantly improves the operation management and electrolytic operation level of electrolytic aluminum plants; Aluminum and final product production links to optimize the combination of electrolytic aluminum plant, casting plant, aluminum processing enterprises, improve the direct casting and rolling ratio of aluminum liquid (omits aluminum ingot and remelting links), reduce the amount of burn loss and energy consumption.