通过把物料的加热过程视作控制理论中调节器的最优控制对象,结合物料加热过程的最优准则,建立了准则约束的优化方法,利用这一方法不仅可以解决物料加热的分布供热的优化问题,而且也为时变供热问题的优化提供了理论依据,这种方法在均热炉上应用的结果表明:与钢锭加热过程预示模型的计算结果相比,优化后热效率可提高3.1％;与热流分解的优化方法相比、热效率从43.1％提高到43.8％;与实际加热过程相比,可降低能耗7.28％。
A criterion restraining method adopted to the dynamic optimization for materi-als heating process has been developed, regarding it as controlled object of a regulator in controltheory and combining the optimal criterion of it. The method may be available to optimize fuelsupply along furnace length and to provide a theoretical basis for the optimization of fuel supplyin time-varying. For soaking pit, the calculation shows that in case of optimization by criterionrestraining method, the thermal efficiency is 3.1% higher than the modelling prediction result.In comparison with heat flux-decomposing method, the thermal efficiency increased from 43.1to 43.8%, and the energy consumption was reduced by 7.28% relative to the practical produc-tion data.
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