Blast furnace multi-element molten iron quality prediction control method and system
A quality prediction and control method technology, applied in general control systems, control/regulation systems, program control, etc., can solve the problems of effective control of difficult multi-element molten iron quality indicators, high degree of nonlinearity, and various types of raw materials and fuels.
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[0072] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0073] A method for predicting and controlling the quality of blast furnace multi-element molten iron, such as figure 1 shown, including:
[0074] Step 1, setting the expected value of the multi-element molten iron quality index of the blast furnace, the multi-element molten iron quality index includes silicon content, molten iron temperature;
[0075] Step 2. Obtain the historical data of blast furnace production, and establish a blast furnace multi-element molten iron quality prediction model. The model takes hot blast temperature, hot air pressure, oxygen enrichment rate, and set coal injection amount as input, and multi-output multi-element molten iron quality index as output Least squares support vector regression model;
[0076] Such as figure 2 As shown, the step 2 includes:
[0077] Step 2-1, obtaining the historica...
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