At 11:18 on July 18, the construction of the Baosteel Zhanjiang Steel Zero Carbon High-grade Thin Steel Plate Factory Project ushered in a critical moment. As the 200t crawler crane steadily hoisted the silver-gray steel structure column into the 10-column foundation of the scrap steel plant A column, it marked the successful hoisting of the first steel structure of the plant. This project is the first near-zero-carbon production line in China that produces high-grade thin steel plates with a short process of "hydrogen-based vertical furnace + electric furnace". It is of milestone significance for promoting the green and low-carbon transformation and development of the steel industry.

It took 3 months, which is a significant reduction of the traditional 6-month construction period by half! This is the hard work of the on-site team day and night, the efficient collaboration of the Zhanjiang Steel self-produced high-strength steel team, and the result of the intelligent planning of the digital construction model and the refined control of the entire process.

For the first time, the zero-carbon plant steel structure uses the self-produced Q390 and Q420 high-quality steel of Zhanjiang Steel. These steels are widely used in various structural systems due to their high strength, high toughness, and excellent welding performance, significantly enhancing the bearing and seismic resistance, and creating a precedent for the use of self-produced steel in Zhanjiang Steel in engineering construction.

Among them, in the steelmaking project and continuous casting project of the zero-carbon production line, about 30,000 tons of steel are used for steel structures. Among them, high-strength steel accounts for about 30%. Through the efficient use of materials, the team effectively reduced resource consumption and carbon emissions and deeply rooted the concept of green development in every step of engineering construction.

The steel structure of the zero-carbon demonstration factory adopted "digital design" and "modular installation" for the first time. From the selection of structural materials to processing and manufacturing, and on-site installation, every link embodies the project team's ultimate pursuit of quality and strict control of safety.

The project management team carefully selected steel structure manufacturers, dispatched professional personnel to the factory for full-process supervision, and relied on digital construction models to implement strict standards and precise control of temperature, humidity, salt control, shot peening, and painting processes in the anti-corrosion treatment of steel structures. Each component is equipped with a unique QR code, which is like its identity, and records in detail the acceptance process of hidden processes such as size specifications, weld inspection, shot blasting, and paint coating, ensuring transparent and traceable information, achieving full-cycle life management, and adhering to the zero-defect quality commitment, so that the quality of steel structures shines at every node of manufacturing and installation.

Faced with the technically complex and high-risk challenge of steel structure hoisting, the project team not only accurately grasps the hoisting process, but also carefully plans a detailed hoisting plan, striving to make every detail perfect. To ensure the scientificity and feasibility of the plan, the project team sincerely invites experts from various parties to conduct in-depth reviews. Through brainstorming, they accurately identify and evaluate various potential risks that may be encountered during the hoisting process.

On this basis, the team formulated a thorough risk prevention and control strategy and built a solid hoisting safety guarantee system. This system not only covers technical safety prevention and control measures but also involves emergency response mechanisms and personnel training. It ensures the safety of hoisting operations in all directions and from multiple angles, laying a solid foundation for the smooth progress of the entire subsequent installation project.

The successful application of self-produced steel products of Q390 and Q420 indicates that Zhanjiang Iron and Steel has achieved remarkable results in the transformation of integrated production, sales, and research. Faced with market challenges, Zhanjiang Iron and Steel dares to break tradition and strengthen the leadership of the manufacturing department. The steelmaking project team has joined hands with Ouye Industrial Products, Southern Company, Investment Management Department, Design Institute, and Metallurgical Construction Unit to accurately capture the pulse of steel demand in zero-carbon factories and build an efficient cross-departmental coordination mechanism.

The project team closely focuses on key construction nodes, flexibly responds to market fluctuations, and ensures a seamless connection between production, sales, and research and development. In this process, Zhanjiang Iron and Steel has always adhered to the user-centric approach, deeply exploring and fully meeting the diversified needs of users, which not only demonstrates its simple, efficient, and low-cost operational advantages but also injects strong impetus into the high-quality development of the enterprise.