December 6, 2025
To advance the coordinated governance of pollution and carbon reduction in the steel industry, foster the construction of an ecological civilization, implement new development concepts, and achieve carbon peak and carbon neutrality goals, it is imperative to accelerate the energy-saving and carbon-reducing transformation of the steel sector. This involves promoting the comprehensive utilization of low-grade waste heat and enhancing the connection technology from molten iron to the end-product, including hot charging and hot delivery of ingots. Specific improvement measures are outlined as follows:
Technical Paths to Minimize Molten Iron Temperature Drop: This includes standardizing, refining, and intelligently managing molten iron transportation, along with implementing insulation measures for molten iron tanks and optimizing tank management practices based on accumulated experience.
Lean Production in Steelmaking: Adopt technologies such as coarse ash recycling, low-slag smelting, and efficient dephosphorization to reduce raw material and alloy consumption while promoting the recycling of solid waste resources.
Converter Composite Blowing Technology Application: Implement a high-intensity, long-life composite blowing process, optimize the design of new oxygen lance nozzles, and enhance large-flow, long-life bottom blowing systems to improve converter efficiency.
Converter Bottom Blowing with CO2: Explore and practice the application of CO2 in converter bottom blowing to reduce carbon emissions and enhance energy efficiency.
Regenerative (Oxygen-Enriched) Baking Technology for Ladles and Tundishes: Utilize regenerative baking techniques to improve energy efficiency during the heating of ladles and tundishes.
Energy and Public Auxiliary Energy-Saving Measures: Implement energy-saving control technologies for steelmaking steam balance, dust removal fans, and converter flue gas waste heat recovery across the full temperature range. Additionally, undertake ultra-low emission transformations to minimize environmental impact.
Key Technologies for Hot Delivery Direct Rolling in Steelmaking-Continuous Casting Process: Develop and apply technologies that facilitate the direct rolling of hot-delivered materials, reducing energy consumption and improving production efficiency.
Steel-Rolling Coupling Synergistic Cost Reduction and Efficiency Enhancement: Identify and implement key technologies that enable synergistic cost reductions and efficiency improvements between the steelmaking and rolling processes.
Lean Management Practice of "Cooling Down, Speeding Up, and Catching the Rhythm": Apply lean management principles throughout the production process to optimize cooling, accelerate production speeds, and maintain a synchronized rhythm, thereby enhancing overall efficiency.
Development and Application of Key Equipment and Process Technologies for Continuous Casting and Rolling: Innovate and deploy advanced equipment and process technologies to support continuous casting and rolling operations, improving product quality and production flexibility.
Digital Planning and Scheduling Technology: Leverage digital technologies for production, supply, and marketing planning and scheduling to minimize inventory levels, maximize capacity utilization, ensure on-time order delivery, and optimize the efficiency of iron-steel and steel-rolling interfaces.
By implementing these measures, the steel industry can achieve significant advancements in low-carbon intelligence, high efficiency, and low consumption, paving the way for a more sustainable and competitive future.
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