基于来料状态的滚筒烘丝机参数设置预测方法
2021-10-03关欣朱波高依萍
关欣 朱波 高依萍



摘 要:为了使滚筒烘丝头料出口水分能够快速精准地到达产品工艺要求的范围,减少后馈造成的调节滞后,使过程中出口水分更加稳定,该研究对影响滚筒烘丝机出口水分的相关工艺参数进行了分析,了解物料流量、热风风速、筒壁温度与来料水分的关系,建立了基于来料状态的滚筒烘丝机参数设置预测方法。结果表明:(1)出口水分到达工艺要求范围内的时间由6.32min降低到5.45min,头料水分能够更快地到达要求范围内;(2)整批次相关参数调节频次由6.2次降低到2.7,减轻了劳动强度,提高了生产效率;(3)出口水分标准偏差由0.107%降低到0.069%,过程出口水分更稳定。
关键词:滚筒烘丝机;参数设置;预测方法
中图分类号 TS452 文献标识码 A文章编号 1007-7731(2021)18-0107-03
Prediction Method of Drum Dryer Parameter Setting Based on Incoming Material State
GUAN Xin et al.
(Qingdao Cigarette Factory, Shandong China Tobacco Industry Co. LTD., Qingdao 266100, China)
Abstract: This paper studies the relevant process parameters that affect the moisture at the outlet of the drum dryer, analyzes the relationship between the material flow, hot air speed, barrel wall temperature and the incoming material moisture, and establishes a method for predicting the parameter settings of the drum dryer based on the incoming material state, in order to make the outlet moisture of the drum dryer to reach the product process requirements quickly and accurately, reduce the adjustment lag caused by the back feed, and ensure that the outlet moisture is more stable during the process. According to the results: (1) it needs from 6.32min to 5.45min for the outlet moisture to reach the process requirement range, which reduces time , and the water content of the raw material can reach the required range faster; (2) The adjustment frequency is reduced from 6.2 to 2.7 for the whole batch, which reduces labor intensity and improves production efficiency; (3) The standard deviation decreases from 0.107% to 0.069% in terms of export moisture, which provides a more stable process for export moisture.
Key words: Drum dryer; Parameter setting; Prediction method
滾筒干燥设备是卷烟制丝生产过程中的关键设备之一,其工艺任务是将膨胀后的叶丝脱水干燥,使其含水率符合工艺要求[1-2]。对于滚筒烘丝机,烟草行业有着较多的研究和分析[3-6]。受加料出口水分、加料出口温度、贮叶时间、环境温湿度等因素的影响,烘前来料水分波动较大。为满足滚筒干燥出口叶丝含水率的指标要求,滚筒干燥设备具备多个控制参数[7]。生产过程中,当来料水分出现波动时,需要操作人员依据经验对关键工艺参数进行调节。不同的控制参数经过一段时间的反馈调节,均能满足出口叶丝含水率的指标要求,但基于出口水分的后馈调节,调节滞后,调节的反应时间较长,加之参数调节后出口水分显示滞后5min的时间,是否调节到位并不确定[8-9]。……
