en.Wedoany.com Reported - The Pressurization Operation Area of the Gas Branch under the Energy and Power Plant of China's Ansteel Group recently completed the anti-corrosion coating project for the side panels of the No. 1 300,000 m³ blast furnace gas holder. The project, which lasted over seventy days, involved systematic anti-corrosion treatment for this giant gas holder exceeding 100 meters in height, including repair of severely corroded areas, leakage treatment, and regional standardization construction. During construction, the project team strictly implemented safety control measures to ensure full-process safety and controllability.
Headquartered in Anshan City, Liaoning Province, Ansteel Group is one of the earliest large-scale integrated steel enterprises restored and built in New China, and is now China's second-largest steel producer. The blast furnace gas holder is a core piece of equipment in the gas recovery and distribution system of steel enterprises, used to store by-product gas generated during the blast furnace smelting process, which is then pressurized and supplied to various production processes. The No. 1 300,000 m³ blast furnace gas holder is a key facility of Ansteel's energy power system, and its safe operation directly affects the overall plant gas balance and production stability.
According to the project contractor, the anti-corrosion project faced three major challenges: first, the gas holder's height exceeding 100 meters made it an ultra-high-altitude operation with high construction risks; second, the gas holder had to remain operational during construction without affecting the plant's gas supply; third, the treatment of corroded areas on the side panels required high precision, involving high-altitude welding and coating work. Before construction, the project team conducted multiple rounds of risk assessment and formulated targeted safety measures for each item. During construction, they strictly adhered to the safety principle of "no construction without safety, immediate halt in adverse weather." After the anti-corrosion coating was completed, the side panels of the gas holder were renewed, with a blue-and-white appearance complementing the adjacent 150,000 m³ coke oven gas holder.
As an important facility in steel enterprises, gas holders are exposed to industrial atmospheric environments for long periods, and corrosion of their steel structures directly affects equipment lifespan and operational safety. The completion of this anti-corrosion project not only eliminated equipment safety hazards and extended the service life of the gas holder but also improved the overall appearance of the plant area. This project is a concrete practice of Ansteel in advancing plant infrastructure maintenance and standardized safety production construction.
