Method for measuring shaping effect of tobacco stem after stem pressing

A measuring method and technology for tobacco stems, which are applied in measurement devices, preparation of test samples, material analysis by optical means, etc., can solve the problem of weak "rebound" ability of tobacco stems, unfavorable blending of shredded leaves, and large test errors. and other problems, to achieve the effect of simple, practical and accurate measurement methods, improving the use value and scope of use, and avoiding large randomness.

Pending Publication Date: 2022-02-18
CHINA TOBACCO YUNNAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, stem pressing technology is still the key technology that restricts shredded tobacco stems into filaments, and the existing technology still has the following problems: different tobacco stems show different effects of pressing stems under the same roller gap condition, that is, some tobacco stems after pressing Stems have strong "rebound" ability, which means that the thickness of tobacco stems is significantly higher than the set roller gap, and there are more flake cut stems in the cut stems processed later, which is not conducive to blending with shredded leaves; After stemming, the "rebound" ability of tobacco stems is weak, the thickness of tobacco stems is close to the set roller gap, and the proportion of shredded tobacco stems is significantly increased after being shredded
Obviously, the traditional tobacco stem test method has the disadvantages of large randomness, large test error, and long test time.

Method used

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  • Method for measuring shaping effect of tobacco stem after stem pressing
  • Method for measuring shaping effect of tobacco stem after stem pressing
  • Method for measuring shaping effect of tobacco stem after stem pressing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1: Determination of the shaping effect of a certain brand of incoming tobacco stem A after pressing the stem. In the tobacco stem thread making section, the moisture content of the tobacco stem A before stalk pressing is 33.5%, the gap between the pressing rollers of the stalk pressing machine is 0.8 mm, and the process flow rate is 3000 kg / h. Proceed as follows:

[0028] 1. Under normal production conditions, the left, middle and right positions of the tank are vibrated in front of the stem press machine, and nine tin bars with a diameter of 2.3 mm and a length of 25 mm are respectively put into the tobacco stems, and three tin bars are put into each position. Tin bar; pick out the tin bar after pressing the stem, measure the thickness of the tin bar with a micrometer, calculate the average value Ds of the thickness of nine tin bars, and keep two valid data, as shown in Table 1:

[0029] Table 1 Test results of tin bar thickness at different positions (unit: m...

Embodiment 2

[0038] Example 2: Determination of the shaping effect of a certain brand of incoming tobacco stem B after being pressed. In the tobacco stem thread making section, the moisture content of the tobacco stem B before stalk pressing is 31.5%, the gap between the pressing rollers of the stalk press machine is 0.8 mm, and the process flow rate is 3000 kg / h. Step is with embodiment 1. The results are shown in Table 3 and Table 4.

[0039] Table 3 Test results of tin strip thickness at different positions (unit: mm)

[0040]

[0041] Table 4 The detection results of related indicators of tobacco stem stereotyping index

[0042]

[0043] stem shape index Belongs to small indicators, this indicator The closer it is to 0, the closer the tobacco stem is to the tin bar after pressing, that is, the better the setting effect of the tobacco stem.

[0044] The results of the above two examples show that although the varieties of tobacco stems are different, the shaping effects of ...

Embodiment 3

[0047] The same section of the cut stem production line as in Example 2, and the same incoming tobacco stem B, increased the moisture content of the tobacco stem, that is, the moisture content of the tobacco stem B before pressing was 33.5%, and the gap between the rollers of the pressing machine was also 0.8mm , The process flow rate is also 3000kg / h. Using the same detection method as in Example 2, the results are shown in Table 5.

[0048] Table 5 The detection results of related indicators of tobacco stem stereotyping index

[0049]

[0050] Comparing Example 2 and Example 3, it can be seen that by increasing the moisture content of tobacco stem B, the stereotyped effect of tobacco stem is obviously improved, that is, the stereotyped index Significantly reduced to close to 0. This shows that the moisture content of the tobacco stem is an important index affecting the setting effect of the tobacco stem, and there is a significant correlation between the two. By incre...

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Abstract

The invention discloses a method for measuring the shaping effect of a tobacco stem after stem pressing. The method comprises the following steps: (1) measuring the average value of the thickness of a tin bar after stem pressing, namely Ds; (2) collecting the image of the pressed tobacco stem to obtain the area S of the pressed tobacco stem; (3) measuring the volume V of the pressed tobacco stem by adopting a liquid replacement method; (4) calculating the actual thickness Dr of the tobacco stem, wherein the formula is Dr = V / S; (5) calculating a tobacco stem shaping index formula; and (6) judging the tobacco stem shaping effect after stem pressing according to the value. The measuring method is simple, practical and accurate.

Description

technical field [0001] The invention belongs to the technical field of tobacco equipment, and in particular relates to a method for measuring the shaping effect of tobacco stems after stalk pressing, which is applied to the quality control of tobacco processing, especially the quality control of stalk pressing in the pretreatment process of tobacco stems. Background technique [0002] In order to pursue the appearance quality of shredded tobacco stems closer to that of shredded leaves, and improve the uniformity and accuracy of blending shredded tobacco stems into shredded leaves, the current cigarette technology adopts hot pressing and thin pressing processes in the process of making shredded tobacco stems and pressing them. The shredded stems have a silky appearance close to shredded leaves. The smaller the gap between the two pressing rollers of the tobacco stem pressing machine, the smaller the thickness of the tobacco stems after pressing the rollers, and the closer the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/84G01N1/28
CPCG01N21/84G01N1/28
Inventor 刘泽左雯何邦华周沅桢李振杰杨志雄何沛胡瑞林张玲田永峰朱勇
Owner CHINA TOBACCO YUNNAN IND
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