卷烟生产中叶片加料循环温度稳定性的优化

The optimization of cycle temperature stability for leaf feeding in cigarette production

以叶片加料循环温度西格玛水平为评价指标,考察了卷烟生产中预热温度、循环热风温度设定值、PID控制P值对循环温度西格玛水平的影响.通过单因素和正交实验确定了最佳工艺条件:预热温度及循环热风温度设定值为循环热风温度标准值,PID控制P值为500.根据优化条件对WQ3318—SJ1525型加料机的温控程序进行优化,叶片加料循环温度的西格玛水平从原来的2.0提高到3.94.

The effects of preheat temperature, cyclic hot air temperature setting value and the P value of PID control were investigated in cigarette production based on the comprehensive evaluation which were guided by the Sigma level of cyclic temperature. The optimum conditions obtained by single factor and or- thogonal methodology were as follows：preheat temperature and cyclic temperature setting value were its standard value, the P value of PID control was 500. Under these conditions, the temperature control program of WQ3318 -SJ1525 was optimized, and the Sigma level of cycle temperature in leaf feeding increased from 2.0 to 3.94.