Accurate converter slag splashing method

Abstract

The invention discloses an accurate converter slag splashing method. The accurate converter slag splashing method comprises the steps that during tapping, a converter body is checked, the erosion situation of various parts of the converter body is determined, and the bottom blow gun flow of corresponding parts is correspondingly adjusted according to the erosion situation of various parts of the converter body; after tapping is finished, a converter is rocked to the assigned position according to the converter body erosion situation; gun lowering is conducted for slag splashing, the slag splashing base gun position and flow are determined according to the erosion situation of various parts of the converter body, the slag splashing gun position is lowered within the optimal slag splashing gun position range along with increasing of the height of the erosion part, and the slag splashing flow is increased within the optimal slag splashing flow range along with increasing of the height ofthe erosion part; and after slag splashing is finished, the converter is rocked to the loading position for loading. By means of the method, the thickness of slag splashing layers of various parts ofthe converter body is accurately controlled, scientific and standard control over the converter profile is achieved, and running safety of the converter body is ensured. Through accurate control overthe slag splashing amount, scientific control over the converter profile is achieved, accordingly, operation stability is improved, the slag overflow amount in the smelting process is reduced, various economic indexes are increased, and the smelting cost is reduced.

Description

technical field [0001] The invention relates to the technical field of metallurgy, and more specifically, to a method for precise slag splashing in a converter. Background technique [0002] During the charging and smelting process of the converter, various parts of the furnace lining are impacted and scoured by scrap steel and molten iron, and the erosion speed of slag and molten steel is different, so some parts are often severely corroded. Currently, slag splashing is often used to repair the furnace lining. However, the amount of slag splashed in each part of the furnace body is basically the same during slag splashing. After slag splashing, the slag splash layer of each part cannot be precisely controlled as required. As a result, when some parts of the furnace lining are severely corroded, they cannot be repaired in time, and the furnace shutdown method is forced to be used. Maintenance has a great impact on production stability and smelting costs. [0003] In additio...

AI Technical Summary

Problems solved by technology

[0005] In view of this, the purpose of the present invention is to provide a method for precise slag splashing of converters, which can effectively solve the problem of low precision of slag splashing layer of converter slag splash repair furnace lining, which has a greater impact on converter smelting

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