Method for promoting reaction equilibrium of converter

Abstract

The invention relates to the technical field of converter smelting, in particular to a method for promoting the reaction equilibrium of a converter. The method comprises the following steps: measuringand obtaining the endpoint carbon content of the converter and the endpoint oxygen content of the converter at the blowing endpoint of a top-bottom combined blowing converter; adjusting the bottom argon gas blowing time and bottom argon gas blowing flow of the top-bottom combined blowing converter according to the endpoint carbon content of the converter and the endpoint oxygen content of the converter; tapping steel after the end of bottom blowing of the top-bottom combined blowing converter. According to the method, the endpoint carbon content and the endpoint oxygen content of the converter are obtained at the blowing endpoint of the top-bottom combined blowing converter, and then the bottom argon gas blowing time and the bottom argon gas blowing flow of the top-bottom combined blowingconverter are adjusted according to the endpoint carbon content and the endpoint oxygen content of the converter, so that steel slag reaction equilibrium can be prompted, the risk of excessively highphosphorus content and oxygen content of molten steel is lowered, and the product quality is improved.

Description

Technical field [0001] The invention relates to the technical field of converter smelting, in particular to a method for promoting the balance of converter reaction. Background technique [0002] With the deterioration of raw materials and the increasingly stringent requirements for downstream products, for converter steelmaking, the refining process requires lower end-point carbon content, oxygen content, and phosphorus content in the converter. It also requires a good mixing effect of molten steel to avoid During the refining process, the temperature fluctuation in the refining process is abnormal due to the poor mixing effect of molten steel. [0003] In the prior art, the reaction of steel slag in the converter at the end of the converter is often not balanced. If the steel is tapped at this time, the phosphorus content and oxygen content will be higher, which will eventually lead to an increase in deoxidized alloys and inclusions, which affects product quality. Summary of the...

AI Technical Summary

Problems solved by technology

[0003] In the existing technology, the reaction of steel slag in the converter is often not balanced at the end of the converter. If the steel is tapped at this time, the phosphorus content and oxygen content will be high, which will eventually lead to an increase in deoxidized alloys and inclusions, which will affect product quality.

Images