System and method for forecasting molten steel components in RH refining process in online manner

A technology of molten steel composition and refining process, applied in the system field of online prediction of molten steel composition in the RH refining process, can solve the problems of high cost, lack of accurate analysis, and vacuum degassing, etc., achieve high degree of automation and reduce labor intensity , to ensure the effect of reasonableness and accuracy

Inactive Publication Date: 2013-11-06
NORTHEASTERN UNIV +1
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  • Abstract
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Problems solved by technology

The document "RH-MFB Decarburization Process Model and Process Optimization" (Tangshan: Master Thesis of Hebei University of Technology, Liu Posson, 2005) only describes the prediction of decarburization in the RH refining process, and the description of the decarburization mechanism is not detailed enough
However, the document "Design and Realization of RH Refining Control Model System" (Metallurgical Automation, 2008, 32(1):12-16, Lin Yun, etc.) did not consider vacuum degassi

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  • System and method for forecasting molten steel components in RH refining process in online manner
  • System and method for forecasting molten steel components in RH refining process in online manner
  • System and method for forecasting molten steel components in RH refining process in online manner

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[0050] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0051] as attached figure 1 As shown, the system for online prediction of molten steel composition in the RH refining process in this embodiment includes: an information acquisition module 1 for acquiring molten steel volume, molten steel composition, target steel grade composition, alloy composition, alloy yield of the corresponding composition, and Corresponding silo number; degassing judgment module 2, which judges whether molten steel needs to be degassed. If necessary, the system transmits an instruction to the degassing module for degassing. If not, the system transmits an instruction to the gas content display module; The degassing module 3 degass the molten steel according to the inbound composition of the molten steel and the smelting target requirements of the steel grade; the gas content comparison module 4 compares the real-time ...

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Abstract

The invention discloses a system and a method for forecasting molten steel components in the RH refining process in an online manner, and belongs to the technical field of production and control of metallurgical refining. The system comprises an information acquisition module, a degasification judgment module, a gas content comparison module, a gas content display module, a decarburization judgment module, a decarburization module, a temperature real-time acquisition module, a carbon content comparison module, a carbon content display module, an alloying judgment module, an alloying module, a silicon and manganese content correction module, an alloy component content comparison module, an alloy content display module and a molten steel component display module. According to the method, degasification treatment includes removal of hydrogen, nitrogen and oxygen in molten steel, the requirement of corresponding steel types for target component contents is met, decarburization treatment is performed until the requirement of the corresponding steel types for the carbon content is met, alloying treatment is performed until alloy components needing fine adjustment meet the range required by target components, and the contents of gas, carbon, silicon, manganese, chromium and titanium in the molten steel can be accurately forecasted.

Description

technical field [0001] The invention belongs to the production control field of metallurgical refining, and more specifically relates to a system and method for online prediction of molten steel composition in the RH refining process. Background technique [0002] The RH vacuum treatment process has been continuously developed due to its characteristics of easy operation, large processing capacity and high production efficiency. On the basis of the original dehydrogenation, functions such as decarburization, deoxidation, oxygen blowing temperature rise, powder spraying desulfurization and composition control have been developed. It developed into a versatile vacuum refining method. The development of RH vacuum refining better meets the steel quality requirements of the modern steel production and steel industry. It is an important means to improve product quality, reduce production costs, increase steelmaking production capacity, ensure smooth continuous casting, and optimiz...

Claims

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Application Information

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IPC IPC(8): C21C7/10C21C7/072
Inventor 罗森陈永朱苗勇曾建华祭程孙维松盛国良陈亮张敏
Owner NORTHEASTERN UNIV
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