A method for intelligent and stable smelting control of ladle refining furnace

Abstract

The invention relates to a method for intelligent and stable smelting of a ladle refining furnace. Firstly, the refining target parameters are determined and used as self-adaptive factors; Refining outbound parameters and refining inbound parameters; then evaluating and calculating according to the refining inbound parameters and refining outbound parameters, and determining the actual refining operation control parameters; finally, according to the preset control target value and the actual operation control parameters, the The molten steel is intelligently and stably smelted. The invention realizes the intelligent and stable smelting of the ladle refining furnace according to setting the refining target parameters and evaluating and calculating the actual operation control parameters of the refining, and provides key technical support for the intelligent development of the iron and steel process technology.

Description

technical field [0001] The invention relates to the field of iron and steel smelting, in particular to a method for intelligent and stable smelting control of a ladle refining furnace. Background technique [0002] In the entire steelmaking section, the ladle furnace (Ladle Furnace) has the functions of heating, desulfurization, deoxidation and alloying. Due to the relatively simple equipment and low smelting cost, it is suitable for most steel types except ultra-low carbon steel , such as medium and thick plates, rebar for construction, etc.; [0003] Although the existing LF refining model can guide the smelting operation to a certain extent, the guidance of the specific process parameters involved in the entire refining process, the control of the entire refining and smelting time, and the corresponding refining end-point hit rate need to be further improved, especially for different molten steel inputs. Optimal heating time control of furnace temperature conditions, pre...

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Problems solved by technology

[0003] Although the existing LF refining model can guide the smelting operation to a certain extent, the guidance of the specific process parameters involved in the entire refining process, the control of the entire refining and smelting time, and the corresponding refining end-point hit rate need to be further improved, especially for different molten steel inputs. Optimal heating time control of furnace temperature conditions, precise control of molten steel alloy content in LF refining process, and slagging path control of reasonable slag system in LF refining process are things that have not yet been achieved by the existing applied models

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