Open AccessDevelopment of Smelting Reduction Ironmaking Process
Author(s) -
Xiaolei Zhou,
Song Pu,
Ningbin Liu
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/768/2/022003
Subject(s) - pulverized coal fired boiler , tuyere , wood gas generator , smelting , blast furnace , waste management , coal , combustion , raceway , production (economics) , environmental science , coal combustion products , metallurgy , engineering , process engineering , materials science , chemistry , mechanical engineering , lubrication , organic chemistry , economics , macroeconomics
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.