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A Characterization Method of Thin Sheet Drying Processing Strength

A thin plate, drying technology, applied in the direction of weighing by removing certain components, weighing of materials, thermal analysis of materials, etc.

Active Publication Date: 2022-02-11
CHINA TOBACCO ANHUI IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The research on the method of characterizing the processing strength in the drying process is of positive significance for ascertaining the variation law in the drying process, but each existing method has limitations

Method used

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  • A Characterization Method of Thin Sheet Drying Processing Strength
  • A Characterization Method of Thin Sheet Drying Processing Strength

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Step 1. The moisture content of the shredded tobacco leaves of the Huangshan A brand sheet drying group is 18.50%, and the temperature and humidity are not increased by using a tunnel-type temperature-increasing and humidifying machine. The material flow rate of the shredded tobacco before entering the thin plate shred dryer is 3500kg / h, and the moisture content of the output after the thin plate is dried is 12.82%. Calculate the dehydration amount M of the drying process 1 It is 228.0kg / h.

[0029] Step 2. Adjust the wind balance of the thin plate dryer so that the feed end of the thin plate dryer is adjusted to a slight negative pressure of 0~-20 micropascals, and the discharge end is adjusted to a negative pressure of -5~-20 micropascals. Measuring holes are set on the air inlet duct of the horizontal section in front of the thin plate wire drying machine, as the hot air wind speed detection point;

[0030] Measure the pipe diameter r of the air inlet pipe as 400mm...

Embodiment 2

[0035] Step 1. The moisture content of cut tobacco leaves of Huangshan A brand sheet drying group is 18.50% after being cut into shreds, and the moisture content of shredded tobacco is 22.46% after being heated and humidified by a tunnel-type warming and humidifying machine. The material flow rate of shredded tobacco before entering the sheet drying machine is 5000kg / h, the moisture content of the output after the thin plate is dried is 12.35%. Calculate the dehydration amount M of the drying process 1 It is 576.7kg / h.

[0036] Step 2. Adjust the wind balance of the thin plate dryer so that the feed end of the thin plate dryer is adjusted to a slight negative pressure of 0~-20 micropascals, and the discharge end is adjusted to a negative pressure of -5~-20 micropascals. Measuring holes are set on the air inlet duct of the horizontal section in front of the thin plate wire drying machine, as the hot air wind speed detection point;

[0037] Measure the pipe diameter r of the ...

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Abstract

The invention discloses a method for characterizing the processing strength of thin plate drying, which is based on the analysis of the two main objects of mass transfer in the thin plate drying process, leaf shreds and hot air. The volatilization of water in the leaf shreds is transferred to the hot air, and the volatilization of the water in the leaf shreds is used to characterize the volatilization of the low boiling point components in the leaf shreds, and the saturation of the hot air, that is, the moisture content, is used to control the speed of water mass transfer , to characterize the processing strength of sheet drying from two aspects of the total amount and speed of mass transfer between shreds and hot air in the sheet drying process. The invention adopts a quantitative method to characterize the processing intensity in the thin plate drying process, and selects different processing intensities of shredded tobacco according to the quality characteristics of cigarette products and consumption requirements, so as to effectively guide the shredded tobacco processing technology.

Description

technical field [0001] The invention relates to a method for characterizing the dry processing strength of thin plates. Background technique [0002] In the tobacco industry, the process of making shreds is mainly to store the leaves after cutting them into shreds, heat and humidify (or not heat and humidify), and then dry them. After the dried shredded tobacco is cooled and shaped, it is blended and flavored. [0003] The drying process is a key process in the cigarette processing process, the purpose is to reduce the moisture content of the shredded leaf, improve the filling performance of the shredded leaf, and improve and enhance the sensory quality of the shredded leaf. At present, the drying methods commonly used in the tobacco industry include sheet drying and airflow drying. The setting of drying process parameters directly affects the physical quality and sensory quality of dried leaf shreds. Compared with other silk-making processes Especially obvious. The settin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N5/04G01N21/3554G01N21/3563G01N25/00
CPCG01N5/045G01N21/3554G01N21/3563G01N25/00
Inventor 瞿先中蒋士盛邵名伟程雷平谢鹏何金华张超卢幼祥严志景雷振徐辉
Owner CHINA TOBACCO ANHUI IND CO LTD
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