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Method for controlling moisture of threshing and temperature of re-dryingbased on tobacco mechanical properties

A temperature control method and a technology of mechanical properties, applied in the fields of tobacco, food science, and tobacco preparation, can solve the problems of loss of aroma in tobacco sheets, high moisture content of tobacco leaf raw materials, poor stability of cigarette rolling quality, etc., and achieve a reduction in moisture content , Improving the technical level and the comprehensive quality of tobacco sheets, and improving the effect of using value

Active Publication Date: 2018-09-21
ZHENGZHOU TOBACCO RES INST OF CNTC +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The setting method of the threshing water not only guarantees the loss of threshing leaves, but also brings some incompatibility to cigarette production: ①The rate of large slices in the tobacco slices is too high (generally around 50%), resulting in If the filament rate is too high, the stability of cigarette rolling quality will eventually be poor; ②The moisture content of the raw material of Errun export tobacco leaves is too high, resulting in too high re-roasting temperature in the re-baking process of the leaves, which in turn causes the loss of tobacco aroma and reduces the quality of cigarettes. The use value of tobacco raw materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The tobacco leaf raw material in this example is the 2016 Fujian Nanping Lower Tobacco Leaf.

[0033] (1) Determination of mechanical properties of tobacco leaf raw materials

[0034] Take out 5 parts of tobacco leaf raw materials, and each part of tobacco leaf raw materials is not less than 50 complete tobacco leaves, and then adjust the moisture of 5 parts of tobacco leaf raw materials to (16±0.5)%, (17±0.5)%, (18±0.5)% respectively , (19±0.5)%, (20±0.5)% moisture range, and the 4 indicators of the moisture-adjusted tobacco leaf raw materials, such as shearing force, pulling force, penetrating force, and leaf stem separation strength, were tested. The specific test results See Table 2.

[0035] Table 2 The moisture adjustment and mechanical properties test results of tobacco leaf raw materials in this example

[0036] Adjust moisture (%)

Measured moisture (%)

Shear force (N)

Pull force (N)

Penetration (N)

Leaf stem separation strength (N...

Embodiment 2

[0047] The tobacco leaf raw material in this example is the 2016 Henan Xuchang central tobacco leaf.

[0048] (1) Determination of mechanical properties of tobacco leaf raw materials

[0049] Take out 5 parts of tobacco leaf raw materials, and each part of tobacco leaf raw materials is not less than 50 complete tobacco leaves, and then adjust the moisture of 5 parts of tobacco leaf raw materials to (16±0.5)%, (17±0.5)%, (18±0.5)% respectively , (19±0.5)%, (20±0.5)% moisture range, and tested the four indicators of the moisture-adjusted tobacco leaf raw materials, such as shearing force, pulling force, penetrating force, and leaf stem separation strength, and the specific test results See Table 4.

[0050] Table 4 The moisture adjustment and mechanical properties test results of tobacco leaf raw materials in this example

[0051] Adjust moisture (%)

Measured moisture (%)

Shear force (N)

Pull force (N)

Penetration (N)

Leaf stem separation strength ...

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PUM

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Abstract

The invention relates to a method for controlling the moisture of stemming and the temperature of re-drying based on the tobacco mechanicalproperties, which includethe index of the shearing force, tension, penetrating force and leaf stem separating strength. According to the test results of the mechanical properties of the raw tobacco, the suitable threshing moisture is determined.It is suggestedto adjust the moisture uniformity of the prepared tobacco leaf raw to beoptimal by adjusting the water ratio and the hot air temperature and other technical parameters for the process of the first-wetting and the second-wetting tobacco. Finally, the re-drying temperature of the tobacco is determined according to the leaf moisture. Based on the analysis of the mechanical properties of the raw tobacco, the threshing strength is ensured and the method for controlling the moisture of threshing and the temperature of re-drying is proposed in order to solve the problems that the rate of large leaf is too high and the strength of re-drying is too much. Moreover, the methodimproves the technical level of the tobaccore-drying processing and the overall quality of the flue-cured tobacco.

Description

technical field [0001] The invention belongs to the technical field of leaf threshing and redrying technology, and specifically relates to a method for controlling the moisture content of leaf threshing and redrying temperature based on the mechanical properties of tobacco leaves, mainly based on the change of the moisture content of tobacco leaves according to the mechanical property indexes such as tobacco leaf shear force and penetration force. Change trend, by adjusting the leaf moistening technical parameters such as the first hot air moistening, the amount of water added to the second hot air moistening, and the hot air temperature, the moisture content of the tobacco leaf raw materials at the second moistening outlet is reduced, and the moisture uniformity of the tobacco leaf raw materials in the leaf moistening link is improved, and then achieved. In the re-baking process, the re-baking temperature is reduced to achieve the purpose of "low temperature and slow roasting"...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24B9/00A24B3/10A24B5/00
CPCA24B3/10A24B5/00A24B9/00
Inventor 张玉海姜焕元卢敏瑞胡宗玉欧明毅堵劲松王芳王兵刘朝贤徐波
Owner ZHENGZHOU TOBACCO RES INST OF CNTC