METHOD AND DEVICE FOR PREDICTING, CONTROLLING AND/OR REGULATING STEELWORKS PROCESSES
The present invention relates to a method for predicting, controlling and/or regulating steelworks processes, comprising the steps of monitoring at least two input variables related to a target variable, determining the relationship between the at least two input variables and at least one target variable by means of regression analysis or classification methods, and using the determined target variable for predicting, controlling and/or regulating the steelworks process.
1 . A method for predicting, controlling and/or regulating steelworks processes, comprising the steps:
monitoring of at least two input variables related to one target variable,
determination of the correlation between the entities to input variables and at least one target variable by means of regression analysis or classification method, and
utilization of the determined target variable for predicting, controlling and/or regulating the steelworks process, wherein a SVM (Support Vector Machine) method is used for determining the target variable, and wherein the SVM is provided both input variables as well as also dynamic input variables.
2 . The method according to claim 1 , wherein the method is carried out in real time.
3 . (canceled)
4 . The method according to claim 1 , wherein multiple input variables and a lesser number of target variables are correlated to one another by means of the SVM method.
5 . The method according to claim 1 , wherein results from model calculations of the SVM method are provided, preferably for broadening the database.
6 . (canceled)
7 . The method according to claim 1 , wherein preprocessing of the input variables is carried out such that static and/or dynamic input variables are combined, dynamic input variables are transformed, and or dynamic, combined and/or transformed input variables are aggregated.
8 . The method according to claim 1 , wherein measuring data are weighted differently, in order to counteract a continuous variation of the measuring errors of the measuring data, preferably by heavier weighting of the most current measuring data.
9 . The method according to claim 1 , wherein for the determination of the tails assay of carbon in the melt, the waste gas composition as well as the radiant power of the converter flame is used as a dynamic input variable.
10 . The method according to claim 1 , wherein for the determination of the tails assay of phosphorus and/or the iron oxide content in the slag the sound at the converter as well as the vibrations of the lance can be used as dynamic input variables.
11 . The method according to claim 1 , wherein for the determination of the tapping temperature, the waste gas temperature as well as the power loss represented in the cooling system of the waste gas, can be used as dynamic input variables.
12 . The method according to claim 1 , wherein operating parameters are determined based upon the target variable determined by means of a SVM method.
13 . The converter comprising a device, which is set up for performing a method according to claim 1 .