THEORY OF DYNAMIC OPTIMIZATION FOR MATERIALS HEATING PROCESS——CRITERION RESTRAINING METHOD

A criterion restraining mehod adopted to the dynamic optimization for materials heat-ing process has been developed,by regarding it as controlled object of a regulator incontrol theory and combining the optimal criterion of it.The method may be availableto optimize fuel supply along furnace length and to provide a theoretical basis for theoptimization of fuel supply in time-varying.For soaking pit,the calculation shows thatin case of optimization by criterion restraining method,the thermal efficiency is 3.1higher than the modelling prediction result.In comparison with heat flux-decomposingmethod,the thermal efficiency increased from 43.1 to 43.8%,and the energy consumptionwas reduced by 7.28% relative to the practical production data.