Investigation and Practice of High Coal Ratio Boundary in 1 350 m3 Shiheng Special Steel Blast Furnace
WANG Liyong
CHEN Hongjiao
ZHANG Bo
Abstract：Shiheng Special Steel's 3#1 350 m3 blast furnace carried out coal ratio operation research under the condition of low-grade materials entering the furnace.Through the correlation analysis between the carbon content of dust removal ash and coal ratio,coke ratio,and blast furnace pressure difference,as well as the longitudinal and transverse comparison analysis between itself and the blast furnace,the coal ratio boundary suitable for the strong metallurgical conditions of 1 350 m3 blast furnace was explored,ensuring high combustion efficiency and high displacement ratio of coal powder injection,and achieving the goal of improving coal ratio and reducing coke ratio.
Keywords：blast furnacehigh coal ratiocoke ratiohigh combustion efficiencyreplacement ratio
Publication Date：2025-10-20
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：4( 1-4 )