A method and system for controlling the moisture content of shredded tobacco dried with thin plates
A thin-plate drying and control method technology, which is applied to tobacco, tobacco processing, tobacco preparation, etc., can solve the problems of inaccurate and uneven control of the moisture content at the exit of thin-plate drying, so as to improve the quality control ability, improve consistency, Resolve inaccurate and uneven control effects
Active Publication Date: 2021-10-22
CHINA TOBACCO HENAN IND
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Problems solved by technology
[0003] The invention provides a method and system for controlling the moisture content of shredded tobacco, which solves the problem of inaccurate and uneven control of the outlet moisture content of existing shredded shreds, and can improve the outlet moisture content of each batch of shredded shreds. Consistency, improve the quality control ability of the production process
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[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 and uneven control of outlet moisture content in thin-plate dried shreds, which may easily cause inconsistencies in the quality of tobacco leaves within or between batches and affect the quality of tobacco, the invention provides a method for controlling the moisture content of shredded tobacco in thin-plate dried shreds In the same batch, the PID feedback control model is set to adjust the hot air speed to control the outlet moisture content, which solves the problem of inaccurate and uneven control of the outlet moisture content of the existing sheet-dried shreds, and can improve the performance of each batch of thin-dried shreds. The consistency of uniformity improves the quality...
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The present invention provides a method and system for controlling moisture content of shredded shredded tobacco. The method includes: setting the hot air temperature of shredded shredded shredded sheet according to a set value, and setting the target value of outlet moisture content of shredded shredded shredded sheet; The actual measured value of the outlet moisture content of silk process, and obtain the target deviation value of outlet moisture content according to described target value and described actual measurement value; Establish PID feedback control model, be used for adjusting hot blast wind speed according to described target deviation value to control outlet The moisture content is feedback controlled, so that the outlet moisture content of the thin plate dried shreds in the batch is controlled according to the target value. The invention can improve the consistency of the uniformity of each batch of thin plate drying silk, and improve the quality control ability of 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 controlling the water content of shredded tobacco dried with thin plates. Background technique [0002] In the process of tobacco processing, the drying process is the most important part of the silk processing. The thin plate drying machine is used for drying and dehydration. In the thin plate drying process, the outlet moisture is often adjusted by the cylinder temperature. By adjusting the temperature of the cylinder Set the value to change the opening of the steam valve, and then adjust the outlet moisture. However, in the actual production process, the temperature of the hot air is controlled by adjusting the opening of the hot air door to ensure that the temperature of the hot air remains in a relatively stable range. Silk cannot be subjected to appropriate high-temperature air drying treatment in time. Ultimately, the moisture content o...
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IPC IPC(8): A24B9/00A24B3/10A24B3/04
CPCA24B3/04A24B3/10A24B9/00
Inventor 李文伟靳毅王晖陈霞郑乾光刘玉叶赵伟民程韦王慧娟王卫江李培培赵海娟李超
Owner CHINA TOBACCO HENAN IND