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Method and system for controlling outlet moisture content of loosening and dampening process

A loose moisture regain and control method technology, applied in the field of tobacco processing, can solve problems such as unevenness, inaccurate control of outlet moisture content, etc.

Active Publication Date: 2020-03-20
CHINA TOBACCO HENAN IND
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Problems solved by technology

[0003] The invention provides a method and system for controlling the outlet moisture content of the loosening and regaining process, which solves the problem of inaccurate and uneven control of the outlet moisture content of the existing loosening and regaining process, and can improve the consistency of the outlet moisture content of each batch of loosening and regaining To improve the quality control ability of the production process

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  • Method and system for controlling outlet moisture content of loosening and dampening process

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Embodiment Construction

[0050] In order to enable those skilled in the art to better understand the solutions of the embodiments of the present invention, the embodiments of the present invention will be further described in detail below in conjunction with the drawings and implementations.

[0051]Aiming at the inaccurate spraying accuracy and uniformity of the material liquid in the current loosening and regaining process, which may easily cause inconsistent quality of tobacco leaves within or between batches and affect the quality of tobacco, the present invention provides a control of the outlet moisture content of the loosening and regaining process The method and system, in the same batch, the PID feedback control model is set to adjust the flow rate of the tobacco sheets to control the outlet moisture content, which solves the problem of inaccurate and uneven control of the outlet moisture content in the existing loose moisture regain process, and can improve the looseness of each batch. The co...

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Abstract

The invention provides a method and a system for controlling the outlet moisture content of a loosening and dampening process, and the method comprises the steps: setting the inlet moisture content and water adding amount of a loosening and dampening machine according to a set value, and setting a target value of the outlet moisture content of the loosening and dampening process; obtaining an actual measurement value of the outlet moisture content of the loosening and dampening process, and obtaining a target deviation value of the outlet moisture content according to the target value and theactual measurement value; and establishing a PID feedback control model for adjusting the flow of the tobacco flakes 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 loosening and dampening process in the batch is controlled according to the target value. The consistency of the loosening and dampening uniformity of all batches 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 method and system for controlling the outlet moisture content of the loosening and moisture regaining process. Background technique [0002] Loose moisture is an important processing procedure that affects the quality of shredded tobacco in the tobacco factory. The moisture content at the outlet of loose moisture is an important process index of this process, and its process stability has a direct impact on the process indicators of subsequent processes. At present, there are many problems in the control of outlet moisture in the process of loosening and regaining moisture, and there are two most prominent points: First, the loosening and regaining control system cannot adjust the amount of water added according to the outlet moisture content measured in real time, thus affecting the stability of outlet moisture content . Second, because the water absorption capacit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24B3/04A24B3/06A24B9/00
CPCA24B3/04A24B3/06A24B9/00
Inventor 靳毅李文伟陈霞刘玉叶郑乾光王海宇段李华王慧娟马宁王慧于光伟李超
Owner CHINA TOBACCO HENAN IND
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