摘要
为解决烟丝加香瞬时精度较差等问题,对加香系统进行了改进。改进后设计安装了两套加香管路,形成双级串联控制,主要包括加香罐、大流量加香系统和小流量加香系统三大部分。根据物料瞬时流量变化实现动态分级控制,在两个系统之间进行定值控制和跟踪控制切换,以减少系统超调量和滞后量。结果表明:改进后加香瞬时精度由1.84%降低到0.69%,加香总体精度稳定在0.2%以内。该方法有效提升了批次内加香均匀性和稳定性,改善了卷烟加工质量。
In order to enhance the precision of cut tobacco flavoring, a coarse-fine control system was designed. The system was mainly composed of a flavoring tank, a large volume flavoring system and a small volume flavoring system which responded to the instantaneous variation of tobacco flow by switching between constant volume control and tracking control systems to minimize system＇s fluctuations. The results showed that after modification, the instantaneous precision of flavoring decreased from 1.84% to 0.69%, and the overall flavoring precision was under 0.2%. This method effectively promotes the intra-batch uniformity and stability of cut tobacco flavoring, and improves cigarette quality.
出处
《烟草科技》
EI
CAS
CSCD
北大核心
2017年第8期97-102,共6页
Tobacco Science & Technology
关键词
烟丝
加香系统
物料流量
瞬时精度
系统静差
双级串联
Cut tobacco
Flavoring system
Material flow
Instantaneous precision
Static error of system
Two-step cascade
