基于模型的JN60型焦炉加热控制

介绍了JN60型焦炉的加热控制研究与应用，并采用了火道温度串级控制和烟道吸力的前馈控制的系统控制方案与模糊控制策略，建立了相关的控制数学模型和工艺模型，利用计算所得的炼焦指数为在线参数对焦炭质量指标进行控制。系统运行结果表明节能约3.5％左右，炉温平均波动小于3℃，安定系数均在0.95以上。
关 键 词 焦炉; 炼焦指数; 火道温度; 加热控制

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