Slag splashing method for converter

Abstract

The invention relates to a slag splashing method for a converter. The slag splashing method for the converter comprises the steps that step (1). a primary control system is used for preseting slag splashing models corresponding to different slag states, wherein each slag splashing model comprises the total slag splashing time, the amount of a slag splashing agent, and the setting of the oxygen lance position and the oxygen lance time; and step (2). a secondary control system is used for judging the slag state according to the converter age, the TSO test temperature of a sublance, the oxygen value, the point blowing condition of the converter, the BL value and the drawing-up carbon-oxygen equilibrium at the time of each tapping from the converter, and the primary control system is used forselecting the corresponding slag splashing model according to the slag state. The slag splashing method for the converter reduces the workload of operators, shortens the slag splashing time, increasesthe operation rate of the converter, improves the effect of protecting the converter by slag splashing, ensures the safe, stabile and long-period direct motion of the whole furnace campaign, stabilizes the bottom blowing effect of the converter under the premise of guaranteeing a furnace lining, and reduces the nitrogen consumption.

Description

technical field [0001] The invention relates to the technical field of iron and steel smelting, in particular to a converter slag splashing method. Background technique [0002] There are two main ways to maintain the lining of the converter: repairing and slag splashing, especially after adopting slag splashing to protect the furnace, the service life of the converter has been greatly improved. Currently, converter slag splashing is mainly done manually by operators. [0003] However, on the one hand, there are human factors such as misoperation and wrong judgment in manual operation. On the other hand, with the development of iron and steel enterprises, operators are becoming more and more streamlined, so many operations need to be completed by automation. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a converter slag splashing method, which can maintain the converter lining while ensuring the bottom blowing...

AI Technical Summary

Problems solved by technology

[0003] However, on the one hand, there are human factors such as misoperation and wrong judgment in manual operation. On the other hand, with the development of iron and steel enterprises, operators are becoming more and more streamlined, so many operations need to be completed by automation.

Images