Slag splashing method for converter

A technology of slag splashing and slag splashing, which is applied in the manufacture of converters, steel manufacturing processes, climate sustainability, etc., can solve problems such as misoperation and judgment error, reduce nitrogen consumption, stabilize the effect, and improve slag splashing to protect the furnace effect of effect

Inactive Publication Date: 2020-06-23
ANGANG STEEL CO LTD
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  • Application Information

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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.

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  • Slag splashing method for converter
  • Slag splashing method for converter

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Embodiment Construction

[0025] Below in conjunction with embodiment the present invention is further described:

[0026] The following examples describe the present invention in detail. These examples are only to describe the best embodiment of the present invention, and do not limit the scope of the present invention.

[0027] A converter slag splashing method, comprising:

[0028] 1) The primary control system presets a variety of slag splash models corresponding to different slag states;

[0029] The converter achieves the purpose of protecting the furnace through nitrogen slag splashing. The slag splashing model includes the total time of slag splashing, the amount of slag splashing agent, the setting of the oxygen lance to grab the position, and the oxygen lance time. The time of slag splashing starts from the time when the oxygen lance is turned on with nitrogen, and the position of the oxygen lance is directly lowered to the gun position set in step 1, and then step 1 is executed to reach th...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C5/44
CPCC21C5/443C21C2300/06Y02P10/25
Inventor 尹宏军贾春晖李超刘文飞马宁金百刚王富亮赵自鑫
Owner ANGANG STEEL CO LTD
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