摘要
CO2膨胀烟丝生产线普遍存在着浸渍器盖门开关速度不可控、动作周期长、运行时振动冲击大,以及浸渍器的液态CO2加注量不能精确控制等问题。为此,在济南C式800 kg/h CO2膨胀线中,对浸渍器分别增加了速度控制系统和荷重(重量5000 kg)控制系统。利用速度控制系统,采用模拟量精确控制浸渍器盖门的开关速度,减小振动冲击;在浸渍器的底座加装重量传感器,对加液量采用液位、重量同时控制的方式,精确控制液态CO2加注量。实际应用对比测试结果表明,改进后盖门开关平均每次减少10 s,加液量的变化在10 kg左右,提高了烟丝浸渍效果的稳定性,杜绝了温度误差的不利影响,节约了循环时间,减小了振动冲击。
There are some problems commonly existed in the dry ice expanded tobacco（DIET） system,such as unable to control the opening/closing speed of impregnator lid and associated strong mechanical shock,and unable to accurately control the amount of liquid CO2 applied into the impregnator.Therefore,a speed control system and a loading（weight,5000 kg） control system were added to the Jinan Model C 800 kg/h DIET system.The speed control system accurately controlled the opening/closing speed of the impregnator lid to reduce the dynamic impact.Weighing cells were installed at the base of the impregnator to accurately monitor the input volume of liquid CO2 along with the liquid level control.The comparative test results of practical application showed that the average time of lid opening/closing reduced by 10 seconds,the variation of CO2 volume was about ±10 kg.The improvement raised the stability of tobacco dipping,eliminated the negative influence caused by temperature error,shortened circulation time,and reduced mechanical shock.
出处
《烟草科技》
EI
CAS
北大核心
2010年第1期11-14,共4页
Tobacco Science & Technology
