JOURNAL OF LIGHT INDUSTRY

CN 41-1437/TS  ISSN 2096-1553

Volume 37 Issue 2
May 2022
Article Contents
LIU Ying, LIU Suijun, FENG Kaidi, et al. Precision control strategy of outlet moisture content in tobacco cut stem airflow drying based on trend prediction and partition feedback[J]. Journal of Light Industry, 2022, 37(2): 65-70. doi: 10.12187/2022.02.009
Citation: LIU Ying, LIU Suijun, FENG Kaidi, et al. Precision control strategy of outlet moisture content in tobacco cut stem airflow drying based on trend prediction and partition feedback[J]. Journal of Light Industry, 2022, 37(2): 65-70. doi: 10.12187/2022.02.009 shu

Precision control strategy of outlet moisture content in tobacco cut stem airflow drying based on trend prediction and partition feedback

  • Received Date: 2021-06-16
    Accepted Date: 2021-09-07
  • Aiming at the problem of insufficient stability of outlet moisture content in tobacco cut stem airflow drying, an integrated model combining trend prediction adjustment control and zoning feedback adjustment control was designed based on the original PID control model. The gap between the actual value and the set value of outlet moisture content was divided into several different intervals in this model, and a real-time control strategy was determined by the interval of gap lied in and the change trend in the interval. At the same time, according to the change trend of inlet moisture content, the change of outlet moisture content was predicted and necessary adjustments were taken. The practical application research results showed that the standard deviation of outlet moisture content in tobacco cut stem airflow drying was reduced by 27.9% after applying the integrated control model, CPK increased by 45.4%. The integrated control model could effectively improve the stability of outlet moisture content in tobacco cut stem airflow drying.
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