Copper Stave Application Of 2000m~3 Blast Furnace In Tangshan Iron And Steel Co.

This paper analyzes and summarizes the application of copper stave.In the early stage of the furnace,due to the excellent slag-loading capacity of the copper stave itself,the metallurgical performance of the blast furnace raw fuel deteriorates,the furnace powder rate increases,and the blast furnace operation and other factors cause the blast furnace wall is based on the slag skin of the copper stave,resulting in the thickening of the blast furnace wall from bottom to top,and the furnace type of the blast furnace is damaged.At the same time,the analysis and summary of the blast furnace is due to the copper chiller due to its own physics.The chemical nature and blast furnace operation lead to the loss of effectiveness of the copper stave.In order to ensure the normal operation of the copper stave in the early stage of smelting,the first thing is to determine and deal with the copper stave thickness.Tanggang 2~#blast furnace learns from the experience of domestic blast furnace processing and thickening,through research practice summarized a set of techniques.Within 3 to 5 days of determining the thickness of the furnace wall,first burning off the slag skin of the copper stave,after the wind is closed,the cooling wall cooling water in the direction of the thickening layer is changed to vaporization,and the water is supplied after the air is supplied,and the edge airflow is appropriately opened to form a quenching and rapid thermal shock to the thick body,which is favorable for the falling off of the thick body to achieve the treatment.The purpose of thickening.Second,in the prevention of copper cooling wall thickness,Tangshan No.2 blast furnace put forward the concept of preventing blast furnace thickening in the whole process.In order to ensure the safe operation of the copper stave blast furnace in the late stage of the furnace,Tangshan 2000 m ~3 blast furnace summarized the cause of the damage of the copper stave and the judgment of the broken copper stave.After determining that the copper stave is damaged and leaking,the use of the wind opportunity,the installation of copper cooling column,hook pipe,cooling water pipe to industrial water open circuit cooling and other measures to maintain the safe operation of the blast furnace,thereby extending the generation of furnace age,for the blast furnace overhaul Be prepared to fight for time and reduce the economic loss of the blast furnace.Figure:25;Table:21;Reference:56...