烟草科技2016，Vol.49Issue(6)：100-104,5.DOI:10.16135/j.issn1002-0861.20160616
梗丝气流干燥出口含水率控制模式的优化设计
Optimization design of control system for moisture content in cut stems out of pneumatic dryer
杨艳阳 1苏国寿 1任淑本1
作者信息
- 1. 红塔烟草 集团 有限责任公司大理卷烟厂，云南省大理市建设东路191号 671000
- 折叠
摘要
Abstract
To reduce the fluctuation of moisture content in cut stems out of the pneumatic dryer, the control system in the pneumatic dryer was optimized as following: 1) Relocating the testing point of moisture meter from the outlet to the electronic weigher next to pneumatic cut stem conveying. 2) Adding a metering tube to the feeding airlock at the outlet of pneumatic conveying. 3) Optimizing PID control program, resetting the delay time of control points and the data feedback from each processing step and increasing the step of tobacco flow from 2 to 5 kg/s to ensure accurate tobacco flow control. The results showed that after improvement, the moisture content in dried cut stems was 12.61%, which conformed to the technical standard; the qualified rate raised from 78.52% to 99.40%; and the sigma level of process control increased from 2.86 to 4.07. The equipment ran stably, the process control of pneumatic drying and the quality of dried cut stems were promoted.关键词
气流干燥/梗丝/含水率/PID控制程序/水分仪/过程控制能力Key words
Pneumatic drying/Cut stem/Moisture content/PID control program/Moisture meter/Process control capability分类
轻工纺织引用本文复制引用
杨艳阳,苏国寿,任淑本..梗丝气流干燥出口含水率控制模式的优化设计[J].烟草科技,2016,49(6):100-104,5.
