Dynamic deoxidization control system and method of converter

一种控制系统、动态的技术，应用在炼钢领域，能够解决夹杂、脱氧剂加入过多、无法做到精准脱氧等问题，达到提高准确性的效果

Inactive Publication Date: 2018-11-23
SHANDONG IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Too little deoxidizer is added, the molten steel is not fully deoxidized, and the oxygen content of the molten steel is high, and the molten steel needs to be further deoxidized; too much deoxidizer is added, which not only wastes costs, but also causes a large amount of Al 2 o 3 Inclusions, Al during casting 2 o 3 The inclusions are enriched on the inner wall of the nozzle and block the nozzle
At present, the aluminum deoxidation process of major steel mills is controlled by experience, and it is properly adjusted according to the carbon content (oxygen content) at the end of the converter. It is impossible to achieve accurate deoxidation, and there are many phenomena of insufficient deoxidation and excessive deoxidation.

Method used

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Embodiment Construction

[0040] Therefore, the core of the present invention is to provide a converter dynamic deoxidation control system to improve the accuracy of deoxidation.

[0041] In addition, the examples shown below do not limit the content of the invention described in the claims in any way. In addition, all the contents of the configurations shown in the following embodiments are not limited to be essential to the solution of the invention described in the claims.

[0042] see figure 1 , the converter dynamic deoxidation control system disclosed in the embodiment of the present invention includes:

[0043] Oxygen measuring probe 100, used to measure the terminal oxygen content of molten steel before tapping;

[0044] The controller 200 stores in advance the corresponding relationship between the amount of deoxidizer added and the oxygen content at the end point, and the controller 200 obtains the amount of deoxidizer added according to the oxygen content at the end point measured by the o...

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PUM

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Abstract

The invention discloses a dynamic deoxidization control system and method of a converter. The dynamic deoxidization control system comprises an oxygen measurement probe, a controller and a measurementscale, wherein the oxygen measurement probe is used for measuring finishing-point oxygen content of molten steel before tapping; the controller is used for storing a corresponding relation between anadding amount of a deoxidization agent and the finishing-point oxygen content in advance; the controller is used for obtaining the adding amount of the deoxidization agent according to the finishing-point oxygen content measured by the oxygen measurement probe and the corresponding relation between the adding amount of the deoxidization agent and the finishing-point oxygen content; the measurement scale is used for weighing the deoxidization agent according to the adding amount of the deoxidization agent and adding the deoxidization agent. When the dynamic deoxidization control system of theconverter, disclosed by the invention, is used, the adding amount of the deoxidization agent can be accurately controlled through the controller; compared with the prior art, accurate deoxidization can be realized, so that the accuracy of deoxidization is improved.

Description

technical field [0001] The invention relates to the technical field of steelmaking, and more specifically relates to a dynamic deoxidation control system and method for a converter. Background technique [0002] In the aluminum-based deoxidation process, the amount of aluminum-containing deoxidizer added has a direct impact on the deoxidation effect. Too little deoxidizer is added, the molten steel is not fully deoxidized, and the oxygen content of the molten steel is high, and the molten steel needs to be further deoxidized; too much deoxidizer is added, which not only wastes costs, but also causes a large amount of Al 2 o 3 Inclusions, Al during casting 2 o 3 The inclusions are enriched on the inner wall of the nozzle and block the nozzle. At present, the aluminum deoxidation process of major steel mills is controlled by experience, and it is properly adjusted according to the carbon content (oxygen content) at the end of the converter. Accurate deoxidation cannot be a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C7/06
Inventor 薛志高志滨郭伟达李强笃任科社
Owner SHANDONG IRON & STEEL CO LTD
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