Long campaign design and operation technology for Baosteel No.3 blast furnace

By now,the service life,accumulative iron production and iron output per unit volume of the first campaign of Baosteel No.3 blast furnace have all created new records among domestic blast furnaces.Therefore the blast furnace has realized high efficiency and longevity.This paper reviews the production course of the No.3 blast furnace,analyzes the lessons and experience in long campaign design,and studies the matching relationship between the design and the operation methods,technologies and habits of the blast furnace.It also explores the technical improvement direction of long campaign design.In addition,on the basis of the operation practice of the No.3 blast furnace,this paper demonstrates the successful technology and experience for the longevity operation and maintenance of the No.3 blast furnace.At the same time,it analyzes the potential relationship between the design and operation of the blast furnace from the angle of prolonging the campaign life,and thus provides reference for the progress of blast furnace long campaign technology.