Converter tapping silicon-manganese alloy addition amount determination method based on yield prediction
A silicon-manganese alloy and determination method technology, applied in the field of iron and steel metallurgy, can solve problems such as difficulty in obtaining a prediction effect model, poor generalization effect, inability to consider the metallurgical mechanism of alloying reaction, etc., so as to improve the generalization ability and improve the economy benefit, the effect of improving the forecast effect
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[0054] Example 1
[0055] In the production of HRB400 series steel in a steelmaking plant, silicon-manganese alloy needs to be added to increase manganese in molten steel during the tapping process to meet the demand of Mn content in the finished steel. In actual production, the amount of silicon-manganese alloy added is estimated by operators with experience, which often leads to waste or multiple additions of silicon-manganese alloy. In order to solve this problem, the method of the present invention is used to establish a prediction model for the yield of Mn element, and the addition amount of silicon-manganese alloy is calculated based on this.
[0056] The production data of a 120t converter in the factory was collected, and 483 sets of valid data were obtained by eliminating the heats whose values fell outside the reasonable range. In order to eliminate the adverse effects of different variable magnitudes on the model, the data are normalized and all mapped to the ran...
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