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Cascaded PID based charging moisture control device in tobacco shred processing technology

A control device and cascading technology, applied in tobacco, tobacco preparation, tobacco processing, etc., can solve the problems of poor moisture control ability, untimely human intervention, low moisture completion rate, etc., to eliminate hysteresis and reduce human intervention. The effect of timely and stable fluctuation range

Active Publication Date: 2013-09-25
CHINA TOBACCO ZHEJIANG IND
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing silk feeder has problems such as poor moisture control ability, large fluctuations, low moisture completion rate, untimely human intervention, staggered intervention, and low accuracy.

Method used

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  • Cascaded PID based charging moisture control device in tobacco shred processing technology

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Embodiment Construction

[0012] The specific implementation manner of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0013] Such as figure 1 Shown is a cascaded PID-based feeding moisture control device in the tobacco shredded process, which includes a PID main controller 1, a cascaded PID controller 2, a linear compensator 3, a main loop 4, an auxiliary loop 5, Steam meter and moisture meter. The two PIDs of the PID master controller 1 and the cascade PID controller 2 are connected in series, and the linear compensator 3 is connected in series between the PID master controller 1 and the cascade PID controller 2, and the The main loop 4 feeds back the outlet moisture PV1 to the input end of the PID main controller 1, and the auxiliary loop 5 feeds back the current cylinder wall temperature PV2 to the input end of the cascaded PID controller 2. The PID master controller 1 determines the set point of the cascaded PID controller 2, and the PID m...

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Abstract

The invention relates to a cascaded PID based charging moisture control device in a tobacco shred processing technology. The cascaded PID based charging moisture control device comprises a PID main controller, a cascaded PID controller, a linear compensator, a main loop and an auxiliary loop, wherein the PIDs of the PID main controller and the cascaded PID controller are connected in series; the linear compensator is connected in series between the PID main controller and the cascaded PID controller; the main loop feeds back moisture PV1 at an outlet to an input end of the PID main controller; the auxiliary loop feeds back a current temperature PV2 of a cylinder wall to an input end of the cascaded PID controller. As the temperature of the cylinder wall of a charging machine is PID-cascaded into a moisture control loop, so that influence such as hysteresis and fluctuation from the temperature to the moisture control is reduced efficiently. The cascaded PID based charging moisture control device in the tobacco shred processing technology realizes an automatic control function, increase a charging moisture control capability, stabilizes a moisture fluctuation range, removes moisture control hysteretic nature and lowers influences from the factors such as that human intervention is no in time and inexact.

Description

technical field [0001] The invention relates to an automatic moisture control device applied to tobacco shredded technology, in particular to a cascaded PID-based feeding moisture control device. Background technique [0002] Cigarette dosing refers to the process of applying "feed liquid" on tobacco leaves during the production of cigarettes. The ultimate purpose of adding ingredients is to improve the smoking quality of cigarettes and form a unique style to meet the requirements of smokers. [0003] In the shredded process, the moisture control ability of the feed material seriously affects the quality of shredded tobacco products. The existing silk feeder has problems such as poor moisture control ability, large fluctuations, low moisture completion rate, untimely human intervention, staggered intervention, and low accuracy. The main factors that affect the moisture control are factors such as the sudden change of the temperature of the cylinder wall and the large error...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24B9/00A24B3/12
Inventor 郭奔李汉莹朱辉平闫洪喜王有利
Owner CHINA TOBACCO ZHEJIANG IND
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