Original Article

Research and management of the charging system for the main blast furnaces at Ansteel

¹ Institute of Iron and Steel Research, Ansteel Group Corporation, Anshan, Liaoning 114009, PR China
² State Key Laboratory of Metal Material for Marine Equipment and Application, Anshan, Liaoning 114009, PR China
³ Ansteel Beijing Research Institute CO. LTD., Beijing 102209, PR China
⁴ Ironmaking General Plant, Ansteel Co., Ltd., Anshan, Liaoning 114021, PR China

* e-mail: sunmm0211@163.com

Received: 29 July 2024
Accepted: 2 January 2025

Abstract

Based on the 8 main blast furnaces at Ansteel, a database was established using charging system parameters and blast furnace smelting parameters to conduct correlation studies. The effects of specific blast furnace charging parameters on furnace performance were analyzed, revealing the influence patterns of edge coke load, drop point distance, and ore-free zone proportion. A comprehensive management system for the charging process was developed, translating the burden matrix into a set of characteristic parameters. By defining control intervals for these parameters, the system enhances the precision and effectiveness of charge regulation, ensuring a more scientifically optimized charging operation. After implementation in 2022, the economic indicators of the blast furnace group showed significant improvement, with the overall fuel consumption per ton of molten iron decreasing by 5 kg/t compared to 2021.