Quality control method and system based on drum-type cut tobacco moisture regaining

Abstract

The invention provides a quality control method and system based on drum-type cut tobacco moisture regaining. The quality control method comprises the steps of obtaining a hot air temperature target value and an outlet moisture content target value corresponding to cut tobacco moisture regaining; establishing a temperature feedback control model of the hot air temperature and the steam valve opening degree, and controlling the steam valve opening degree according to the temperature feedback control model and the hot air temperature target value so as to control the hot air temperature in a drum; obtaining an actual measurement value of the outlet moisture content of the cut tobacco moisture regaining process, and obtaining a target deviation value of the outlet moisture content according to the target value and the actual measurement value; and establishing a moisture content PID feedback control model for adjusting the warm water spraying flow according to the target deviation value so as to perform feedback control on the outlet moisture content, so that the outlet moisture content of the cut tobacco moisture regaining process in the batch is controlled according to the target value. The method can improve the consistency of moisture contents of moisture regaining outlets of various batches of cut tobaccos, and improves the quality control capability in the production process.

Description

technical field [0001] The invention relates to the technical field of tobacco processing, in particular to a method and system for quality control based on remoisture of drum-type leaf shreds. Background technique [0002] Shred re-moisturization is an essential process before air-drying of shredded shreds. The outlet moisture content and hot air temperature of shredded shreds re-moisturization are important process indicators of this process. The process stability has a direct impact on the process indicators of subsequent processes. At present, the drum-type silk resurgence is controlled by spraying warm water at 45±5°C. However, there are many problems in outlet moisture control and hot air temperature during the resurgence of leaf shreds. The outlet water content measured in real time adjusts the amount of water added, thereby affecting the stability of the outlet water content. Second, because the water absorption capacity of the tobacco sheets on the silk production ...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a quality control method and system based on roller-type shredded shredded moisture resurgence, which solves the problem of unstable and uneven control of outlet water content in the existing shredded shredded moisture resurgence process, and can improve the consistency of outlet moisture content of each batch of shredded shredded shreds. To improve the quality control ability of the production process

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