Cut stem feeding quality control method and system

Abstract

The invention provides a cut stem feeding quality control method and system, and the method comprises the steps: setting a feed liquid proportion according to a set value, and obtaining a hot air temperature target value and an outlet moisture content target value corresponding to cut stems; 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 the charging machine; obtaining an actual measurement value of the outlet moisture content of the cut stem feeding process, and obtaining a target deviation value of the outlet moisture content according to thetarget value and the actual measurement value; and establishing a moisture content PID feedback control model for adjusting the feed liquid injection amount according to the target deviation value soas to perform feedback control on the outlet moisture content, so that the outlet moisture content of the cut stem feeding process of each batch is controlled according to the target value. The accuracy of the feed liquid proportion of cut stem feeding and the stability of the outlet moisture content can be improved, and the quality control capacity in the production process is improved.

Description

technical field [0001] The invention relates to the technical field of tobacco processing, in particular to a quality control method and system for adding cut stems. Background technique [0002] Stem feeding is an important process in the production and processing of tobacco. The feed liquid is applied to the cut stems according to the formula requirements, and the irritation and miscellaneous gas of tobacco are reduced through the feeding process, and the sensory quality and physical properties of tobacco are improved. At present, the cut stem feeding control is that the feed liquid is applied to the cut stems by the feeding system according to the cut stem flow rate and the feeding ratio during the production process. At the same time, the feed liquid is mixed and sprayed through the nozzle and steam. Therefore, in the moisture control and temperature control, it is necessary to consider the different feed liquid and feed liquid ratio applied during the production of diff...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a quality control method and system for feeding shredded stems, which solves the problem of inaccurate control of the spraying ratio and uniformity of the feed liquid when feeding shredded stems, and can improve the accuracy of the ratio of feed liquid for feeding shredded stems of various brands. stability of water quality and process outlet moisture, and improve the quality control ability of the production process

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