基于模型的JN60型焦?fàn)t加熱控制

介紹了JN60型焦?fàn)t的加熱控制研究與應(yīng)用，并采用了火道溫度串級控制和煙道吸力的前饋控制的系統(tǒng)控制方案與模糊控制策略，建立了相關(guān)的控制數(shù)學(xué)模型和工藝模型，利用計(jì)算所得的煉焦指數(shù)為在線參數(shù)對焦炭質(zhì)量指標(biāo)進(jìn)行控制。系統(tǒng)運(yùn)行結(jié)果表明節(jié)能約3.5％左右，爐溫平均波動(dòng)小于3℃，安定系數(shù)均在0.95以上。
關(guān) 鍵 詞 焦?fàn)t; 煉焦指數(shù); 火道溫度; 加熱控制

Abstract It is described in this paper for the heating control study on JN60’ coke oven and application, the scheme of cascade control for flue temperature and feedforward control for draft used in the system, the strategy of fuzzy inference, establish of the mathematical model for heating control and technology, utilizes the coking index as the parameter on line to control coke quality. The results indicates that average energy conservation is about 3.5％, the temperature fluctuation is below 3℃,the steady coefficient of temperature is above 0.95.
Key words coke oven; coking index; heating control; flue temperature