Green, low-carbon and intelligent lead the transformation and upgrading of the steel industry

As the world's largest and strongest metallurgical construction contractor and metallurgical enterprise operation service provider, China Metallurgical Group Co., LTD. (referred to as "MCC Group") has always stood at the high-end of the international level and the height of the development of the entire metallurgical industry. With the leading international first-class core technology, continuous innovation and research and development of independent controllable ability, irreplaceable metallurgical industry chain integration and integration advantages, to assume the responsibility of leading China's metallurgy to achieve intelligent, green, low-carbon, efficient development of the "iron and steel power". MCC has made every effort to draw a carbon emission reduction technology roadmap, promote low-carbon and carbon-free smelting, and focus on innovative breakthroughs and iterative upgrades in the fields of hydrogen smelting, electric furnace steelmaking, ultra-low emission, and efficient use of resources and energy. It has accumulated a number of key technologies for independent research and development, and relies on intelligent technologies to accelerate the process of carbon reduction and reduction. Help to achieve green, low-carbon, intelligent and efficient development of the iron and steel metallurgy industry.

Optimize system capacity building to open a new era of green and low-carbon

In order to meet the needs of green and low-carbon development of the steel industry, it is urgent to establish a carbon emission calculation method and a corresponding carbon emission reduction evaluation standard system that adapt to the actual situation of the steel industry. To this end, MCC South is building a "Steel production low-carbon management system", which includes two parts: "Steel production carbon emission intelligent analysis software" and "steel production carbon emission reduction intelligent management system".

The steel production carbon emission intelligent analysis software is deeply compatible with authoritative and common carbon emission accounting methods at home and abroad, fully integrates the differences of raw fuel, process flow and product structure at home and abroad, and has functions and features such as emission source heuristic inventory, emission factor intelligent correction, emission activity data intelligent cleaning, verification and accounting efficient and accurate, and intelligent suggestions for emission reduction activities. It is a skillful helper for iron and steel enterprises to carry out digital carbon asset management. The software presets a variety of normative accounting report templates at home and abroad, and supports highly flexible customization with the wizard mode, which can realize the one-click generation and submission of common reports. The software data interface is deeply integrated with the enterprise energy management system and manufacturing execution system, and the intelligent suggestions and emission reduction potential evaluation of process-level emission reduction activities are given by applying big data analysis.

The steel production carbon emission reduction intelligent management system can realize real-time online collection of emission activity data, and the collected data can be efficiently and intelligentially analyzed, so as to provide real-time and reliable carbon asset prediction and early warning for enterprises, and help enterprises plan future carbon emission reduction activities and carbon emission trading. The instant snapshot can generate a digital label of the carbon footprint of steel products, which can help steel products avoid low-carbon barriers to export overseas.

Promote process technology change to accelerate carbon emission reduction in short process

Focusing on the theme of carbon emission reduction, MCC strives to give full play to the advantages of core process technology, from the perspective of optimizing the production structure, in-depth analysis of key and core technology shortcomings such as technology and equipment, shorten the process flow, optimize the process interface, and provide strong technical support for the green and low-carbon development of the steel industry.

Reducing the carbon emission of "blast furnace + converter" long process steel production is the key work at present. MCC Jingcheng, a subsidiary of MCC Group, has developed low-carbon metallurgical technologies based on long processes, including key technologies such as hydrogen rich sintering, oxygen rich large coal injection, high proportion pellets, low carbon iron making in blast furnaces, thin slab continuous casting, and long wood direct rolling. "Hydrogen based shaft furnace + electric arc furnace short process or scrap electric furnace + headless rolling, direct rolling, casting rolling" is the forefront of green and low-carbon development of the steel industry. MCC Jingcheng overall design, the world's first development and implementation of "coke oven gas self-reforming gas base shaft furnace direct reduction" preparation of high-quality deoxidation pellet technology, can achieve carbon reduction of 60%, while the self-developed CERI-S1-Arc new scrap preheating furnace adopts a new "shaft + push steel mechanism + horizontal charging" composite scrap preheating technology. Through "high temperature flue gas + quench preheating boiler + activated carbon adsorption" the whole process of ultra-clean elimination of dioxins, through "activated carbon adsorption + electrocoagulation coupling bag dust removal" to achieve collaborative emission reduction of particulate matter, dioxins and carbon dioxide.