Downstream type tobacco-dryer exit tobacco-shred water control method

Abstract

The invention discloses a method for controlling moisture of tobacco shreds at an outlet of a parallel-flow tobacco dryer, and relates to a production control method in the tobacco industry. The method is characterized in that: in a production phase, the required value of the moisture of the tobacco shreds at the outlet is taken as a target, the precedence of control and adjustment is determined according to the opening degree of a moisture draining air door and a hot wind air door, the temperature of hot wind and the temperature of a wall; the overall principle is firstly controlling and adjusting the parameters which have little impact on the internal quality of the tobacco shreds and the smoking and then controlling and adjusting the parameters which have great impact on the internal quality of the tobacco shreds and the smoking; the sequence is as follows: (1) first the opening degrees of the moisture draining air door and the hot wind air door are controlled and adjusted; (2) then the hot wind temperature is controlled and adjusted; (3) and finally the wall temperature is controlled and adjusted. The method for controlling moisture content of tobacco shreds has the advantage that the wall temperature is basically kept constant in the production process, which is beneficial to stabilizing and unifying the inner quality and style of the tobacco products. The method can provide a technical means for individualized production and classification processing of the cigarettes.

Description

technical field [0001] The invention relates to a production control method in the tobacco industry, in particular to a method for controlling the moisture content of shredded tobacco at the outlet of a downstream shred dryer in the tobacco industry. Background technique [0002] The production control of the prior art downstream shredded drying machine adopts parameters such as fixing the hot air damper and the damp damper, the hot air temperature, and the rotating speed of the barrel to control the moisture content of the outlet cut tobacco by adjusting the temperature of the barrel wall. Under this silk drying machine control method, other parameters are fixed, and only the temperature of the cylinder wall is adjusted, resulting in large fluctuations in the temperature of the cylinder wall during the production process. In recent years, new research in the tobacco industry has realized that the tube wall temperature is the factor that has the greatest influence on the int...

AI Technical Summary

Problems solved by technology

Under this method of silk dryer control, other parameters are fixed, and only the temperature of the cylinder wall is adjusted, resulting in large fluctuations in the temperature of the cylinder wall during the production process.

In recent years, new research in the tobacco industry has realized that the tube wall temperature is the factor that has the greatest influence on the intrinsic quality and smoking style of cigarette products among all the parameters of the shred dryer. Flavor style is not stable, therefore, there is conflict between the control method of silk drying machine in the prior art and product quality requirement

In addition, at present, the industry puts forward the requirements of individualized production and classified processing of products, and the temperature of the cylinder wall of the silk dryer needs to be processed under different setting values. The control method of the silk drying machine in the prior art obviously cannot meet such requirements

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