Abstract
Based on the characteristics of the sintering process, a long and short term control strategy of sintering burn through point was put forward, with the burn through point optimised with a fuzzy controller. Long term control was realised by adjusting bed height or density according to the state of preignition permeability and vertical sintering speed. The rising position of gas temperature was stabilised by adjustment of pallet speed, enabling short term control to be carried out. By using vertical sintering speed to represent bed permeability a prediction model of vertical sintering speed was established. The predicted results are in accordance with calculated values and accuracy of the model is >95%. The application of system shows that the accuracy of guidance is >95% and this system can be used to industry production.
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