Solidification experience method for defining splashing in converter blowing period

Abstract

The invention relates to the field of converter blowing, and discloses a solidification experience method for defining splashing in a converter blowing period. The method comprises the following steps: collecting gas concentration data in converter blowing records without splashing in the blowing process of a plurality of converters to form a gas concentration minimum curve, acquiring a gas concentration real-time change curve in the actual steelmaking process, and when the gas concentration real-time change curve exceeds the gas concentration minimum curve at a certain blowing time point, prompting the risk of splashing, and timely taking corresponding measures for adjusting lance positions; and after the gas concentration real-time change curve returns to the lower part of the gas concentration minimum curve, removing the alarm. According to the solidification experience method for defining the splashing in the converter blowing period, a steelmaking operator can timely predict the impending splashing of the converters, and the splashing problem of the converters is avoided by timely adjusting the lance positions of converter oxygen lances.

Description

technical field [0001] The invention relates to the field of converter blowing, in particular to an empirical solidification method for defining splashing during converter blowing. Background technique [0002] During the production process of the converter, the problem of "splashing" will occur due to various reasons. In the time period when the "splash" occurs, it is divided into the early "splash", the middle "splash" and the late "splash". [0003] Among them, the "splash" in the early stage is mainly due to the concentration of feeding materials, the temperature in the molten pool is relatively low, the slag is not in good condition or the "silicon" content of molten iron is high; the "splash" in the later stage is mainly caused by improper control of the gun position during operation. The pollution caused by "splash" in the early and late stages is relatively small, and the occurrence of "splash" problems can be avoided by adjusting the operation method. [0004] How...

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Problems solved by technology

[0004] However, the "splash" that appeared in the middle period is mainly manifested in the severe carbon-oxygen reaction, the rapid temperature rise in the furnace, the accumulation of iron oxide in the slag, and the "liquid" metal ejection during the "splash" process, forming an overflow The flue gas concentration is high and the pressure is high, and the existing secondary dust removal facilities are unable to effectively recover, eventually forming a long-term "red dust on the roof"

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