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Control method and system for CAS-OB refining automatic alloying

A control method and alloy technology, which is applied in the field of metallurgy, can solve problems such as unqualified ingredients, errors, and unreasonable input of alloy additions.

Active Publication Date: 2021-04-16
SHOUGANG JINGTANG IRON & STEEL CO LTD
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  • Claims
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Problems solved by technology

However, the addition of alloys is artificially converted. Unreasonable or wrong input of alloy additions caused by human factors will cause quality accidents of unqualified components, and then obtain unqualified molten steel.

Method used

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  • Control method and system for CAS-OB refining automatic alloying

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Embodiment Construction

[0064] In order to enable those skilled in the technical field to which the application belongs to understand the application more clearly, the technical solutions of the application will be described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0065] The invention provides a CAS-OB refining automatic alloying control method, which uses a secondary system to predict the composition of the arrival station, automatically calculate the amount of alloy added according to the composition of the arrival station, automatically perform feeding and preparation, and automatically complete the alloying operation , and predict the end composition according to the arrival composition and the actual alloy addition amount, which improves the efficiency of CAS-OB refining and alloying.

[0066] see below figure 1 , the method includes the following steps:

[0067] Step 101, after the heat starts, calculate the element arrival prediction value...

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Abstract

The invention discloses a control method and system for CAS-OB refining automatic alloying. An arrival component is predicted through a secondary system, the alloy addition amount is automatically calculated according to the arrival component, feeding and material preparation are automatically carried out, the alloying operation is automatically completed, and an end component is predicted according to the arrival component and the actual alloy addition amount, so that the quality accident that the components are unqualified due to unreasonable input or input errors of the alloy addition amount due to human factors is avoided, the component control precision can be effectively improved, the long period and high cost caused by secondary component adjustment are reduced, the labor intensity of operation is reduced, and the automation level of CAS-OB refining is improved.

Description

technical field [0001] The present application relates to the field of metallurgy technology, in particular to a control method and system for CAS-OB refining automatic alloying. Background technique [0002] CAS-OB is a ladle refining treatment process. During CAS-OB refining, the bottom-blown argon gas is firstly used to blow argon to blow away a slag-free area from the molten steel surface of the ladle, and then the CAS-OB cover is lowered to cover the slag-free area. The CAS-OB cover is used to isolate the added alloy from the slag to reduce secondary oxidation and improve the absorption rate of the alloy. The cover is filled with inert gas to form a semi-closed control to avoid secondary oxidation caused by air entry. [0003] In the CAS-OB refining process, the alloy is added into the hood, and the molten steel is circulated by blowing argon to melt the alloy and make the composition uniform, so as to achieve alloying and meet the composition of the molten steel to mee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C7/072C21C7/00
Inventor 温瀚王少军黄财德赵长亮杨晓山陈爱军单伟庞武德高振宇王崇安超张博王雷川王艳军王鑫韩建新闫小柏魏东贾菁菁刘福利张海涛
Owner SHOUGANG JINGTANG IRON & STEEL CO LTD
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