Development of Smelting Reduction Ironmaking Process

Abstract

The production practice of COREX 3000 shows that COREX is a new type of ironmaking production method that has become mature in recent years. While achieving good environmental and social benefits, it also faces many problems. Production found that COREX 3000 has a high fuel cost and high production costs. Coal injection through the tuyere can effectively use the pulverized coal generated during transportation, reduce production costs, and obtain better economic benefits. During the COREX coal injection process, pulverized coal passes through the tuyere of the melter and gasifier and enters the swirling zone for combustion. Generate hot gas to meet the needs of metallurgical reactions. Unburned pulverized coal moves up, participates in metallurgical reactions, or stays somewhere. This has a certain effect on the melting gasifier.