Method for characterizing lamina structure of tobacco leaf

A blade structure and blade technology, which is applied in the field of characterization of tobacco leaf blade structure to achieve the effect of comprehensive structure distribution

Active Publication Date: 2012-02-01
ZHENGZHOU TOBACCO RES INST OF CNTC
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Problems solved by technology

The Chinese patent "on-line detection device and method for tobacco laminar structure" (CN101650316A) introduces a device for detecting leaf area by image method. Intervals are calculated as interval percentages, so there are also limitations to the characterization of the tobacco structure
[0003] In order to comprehensively and meticulously understand the leaf structure (including leaf size distribution, uniformity and overall size), it is necessary to establish a method that can scientifically and accurately characterize leaf size distribution, uniformity and overall size, and overcome the limitations of existing methods. Deficiency of Leaf Structure Characterized by Leaf Mass Percentage on Sieve

Method used

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  • Method for characterizing lamina structure of tobacco leaf
  • Method for characterizing lamina structure of tobacco leaf

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Embodiment

[0022] (1) Sampling of samples: The present invention took samples of leaves of different origins and different grades after threshing, redrying and loosening and regaining moisture. There are 14 samples in total. As shown in Table 1, the sampling amount of each sample is 3.0 kg, in order to ensure the integrity of the blade structure, take the blade on the entire section of the conveyor belt as a test sample.

[0023] (2) Dispersed paving: In order to achieve the ideal dispersing effect and completely separate the blades, the present invention adopts a multi-stage dispersed paving method. The equipment used is shown in the figure: including a multi-stage belt conveying paving device and an image acquisition device , Place the taken leaf sample on the first-level belt 2, the flow of the leaf is controlled by the material limiting roller 1, the second, third, and fourth-level belts 3, 4, 5 speed up step by step, and the blades are gradually diluted and dispersed through the fourth-...

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Abstract

The invention relates to a method for characterizing the lamina structure of a tobacco leaf. The method is characterized by comprising the following steps of: (1) sampling; (2) dispersing and paving materials; (3) collecting a lamia image; (4) measuring a lamina area; (5) calculating the area percentage of intervals; (6) calculating the accumulative area percentage; (7) fitting a distribution equation; (8) calculating a characteristic area; and (9) acquiring the lamina content of the intervals of any areas. The method has the advantages that: the distribution of lamina size is described by using the continuous distribution equation, the uniformity of the distribution of the lamina size and the integral size of the lamina are characterized by utilizing a uniformity coefficient b and the characteristic area x0.5, and simultaneously, the lamina content of the intervals of any areas can be acquired by the distribution equation of the lamina. The method overcomes the defects of the conventional method, and characterizes the structural distribution condition of the lamina comprehensively.

Description

Technical field [0001] The invention belongs to the technical field of tobacco processing, and specifically relates to a method for determining the size and distribution of leaves—a method for characterizing the structure of tobacco leaves. Background technique [0002] Tobacco leaf structure is an important indicator to measure the quality of threshing, and it is also the main factor affecting the structure of shredded tobacco. The latter in turn determines the quality of cigarettes such as the weight of a single cigarette, the density of the cigarette, the amount of end shreds, the short rate and the rolling quality An important factor of stability. At present, the determination of blade structure mainly uses sieving method to separate blades of different sizes, and the result is expressed as the ratio of the cumulative mass of each layer or a certain layer of screen to the total mass. On the one hand, because the blade is a flexible and irregular sheet structure, it is easy t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/28
Inventor 徐大勇邓国栋堵劲松李善莲张玉海朱文魁陈良元
Owner ZHENGZHOU TOBACCO RES INST OF CNTC
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