Scrap steel slag transforms into a new material for infrastructure construction; dust and mud are converted into points of benefit growth; pulverized blast furnace slag replaces % of the cement in concrete; ... these seemingly "far-fetched" ideas are "real" realities at Shagang.

Entering the steel slag workshop of Shagang New Materials Company, rows of machines are neatly arranged and running, with steel slag passing through a series of deep processing steps such as magnetic separation, crushing, rod milling, and sieving on conveyor belts, transforming from its original "dusty" rough block state into a black, shiny, and fine new material. "The processed steel slag powder feels fine and has uniform particles, with a metal iron content of less than %, making it an ideal building material," said a relevant person in charge of Shagang New Materials Company. "We can also customize the specifications of the steel slag powder according to customer needs, reducing secondary processing and energy consumption for users, thereby further increasing the added value of the product."

It is understood that steel slag powder has high strength and good adhesion with asphalt, effectively enhancing the bearing capacity of roadbeds. Shagang has the largest annual production line in the country for steel slag treatment, capable of processing tens of thousands of tons, achieving 100% recycling of steel slag, and widely applied in urban road sponge transformation and construction brick manufacturing projects.

In the control center of the New Materials Company, another new type of construction material, "slag micro-powder," is continuously being conveyed on the conveyor belt, visible on the large screen. It is made from blast furnace slag generated during iron smelting, dried and ground into a powder finer than flour. "Slag micro-powder has good activity and latent hydraulic properties, which can significantly improve the comprehensive performance of concrete and cement products," said a spokesperson for the New Materials Company. Slag micro-powder can be used as a cement admixture or directly applied in the construction of transportation facilities such as roads and bridges, replacing a portion of the cement in concrete.

Currently, Shagang has an annual production capacity of one million tons of slag powder. Renowned for its superior quality, it is widely used in major domestic projects such as the Shanghai-Suzhou-Nantong Yangtze River Bridge and the Shanghai-Nantong Railway, and has been exported to countries such as the United Arab Emirates and South Korea, earning the title of "Top-Quality Brand of Slag Powder in the Yangtze River Delta Region for the - Year Period."

In addition, Shagang has developed and built a demonstration project for the global largest rotary hearth furnace (RHF) recycling of iron-zinc dust and sludge with independent intellectual property rights. The RHF production line annually processes over 10,000 tons of iron-containing sludge, dust, and other metallurgical solid wastes. Since the Jiangsu Provincial Department of Ecology and Environment and the Suzhou Municipal Bureau of Ecology and Environment approved Shagang's pilot work on the "zero-waste group" construction, Shagang has boldly innovated and taken the lead in trial implementation. Taking the "zero-waste group" construction as an opportunity, Shagang has focused on source control, strictly managed end-of-pipe treatment, conducted technical research on reducing the volume of solid wastes such as steel slag and sludge, established a classification management system based on the "value of solid waste + environmental hazard," innovated "point-to-point" directed utilization pilot projects, and developed an information management system for the entire life cycle of solid wastes... Each project that turns "waste" into "gold" has effectively propelled Shagang's green development into a "one-click acceleration" mode.

For years, Shagang has consistently adhered to the development philosophy of "innovation-driven, environmental protection first," unwaveringly implementing the development strategy of "building a high-quality production base and constructing a green steel city." It has vigorously developed circular economy, invested hundreds of millions, implemented over a hundred environmental improvement projects, comprehensively carried out the "five recycling and utilization projects" for coal gas, furnace slag, by-products of coking, and industrial water, developed "urban mines," fully dry coking production, and created "garden factories" ... Achieving ultra-low emissions across the entire process, the benefits generated annually from the circular economy account for more than "%" of the enterprise's total benefits, truly realizing green production.