Staged online monitoring method for steelmaking by refining furnace

Abstract

The invention discloses a staged online monitoring method for steelmaking by a refining furnace. The method comprises the following steps: monitoring an argon blowing signal in an argon blowing stage,a first heating stage signal and a second heating stage signal of the refining furnace to obtain a plurality of monitoring signals; comparing and classifying the monitoring signals with a normal working signal to obtain an identifier which represents the operating state of the refining furnace; determining the operating condition of the refining furnace according to the identifier of the operating state of the refining furnace; and when the identifier of the monitoring state is not available, giving out an operating type of the monitored signals according to a neural network model, wherein the step of giving out the operating type of the monitored signals comprises the steps of constructing the neural network model by the monitoring signals obtained by monitoring and analyzing and outputting the monitored signals in a neural network; and inputting an output result to a fuzzy controller to obtain an output vector group which represents the adjusting type as an adjusting key output. Bymonitoring steelmaking processes in stages in the refining furnace, the refining process is carried out smoothly.

Description

technical field [0001] The invention relates to a stage-by-stage online monitoring method for steelmaking in a refining furnace, which belongs to the application of metal materials. Background technique [0002] With the continuous improvement of steel quality requirements in all walks of life, the requirements for steel composition control and cleanliness are becoming more and more stringent. In addition, the iron and steel industry needs to improve efficiency and reduce consumption. The traditional one-step smelting in the furnace can no longer adapt The needs of social development, in this form, contributed to the development of refining technology outside the furnace. The reason why out-of-furnace refining can be produced and developed is that out-of-furnace refining is a process of deoxidation, desulfurization, dephosphorization, removal of inclusions and denaturation treatment of inclusions, and adjustment of molten steel temperature in a controlled atmosphere of vacuu...

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Problems solved by technology

[0002] With the continuous improvement of steel quality requirements in all walks of life, the requirements for steel composition control and cleanliness are becoming more and more stringent. In addition, the iron and steel industry needs to improve efficiency and reduce consumption. The traditional one-step smelting in the furnace can no longer adapt The needs of social development, in this form, contributed to the development of out-of-furnace refining technology

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