Method for characterizing lamina structure of tobacco leaf

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

Active Publication Date: 2011-02-09
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

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

[0024] (1) Sample sampling: In the present invention, samples were taken from different origins and different grades of leaves after threshing, rebaking, and loosening and regaining moisture. There were 14 samples in total, as shown in Table 1. The sampling volume of each sample was 3.0 kg, in order to ensure the integrity of the blade structure, take the blades on the entire section of the conveyor belt as test samples.

[0025] (2) Dispersed material spreading: In order to achieve the ideal dispersion effect and completely separate the blades, the present invention adopts a multi-stage dispersed material spreading method, and the equipment used is as shown in the figure: including a multi-level belt conveying material spreading device and an image acquisition device , Place the sample of the leaf on the first-stage belt 2, the flow of the leaf is controlled by the material limiting roller 1, the speed of the second, third, and fourth-stage belts 3, 4, and 5 is gradually accel...

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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 in particular relates to a method for measuring the size and distribution of leaves—a method for characterizing the leaf structure of tobacco leaves. Background technique [0002] Tobacco leaf structure is an important index to measure the quality of threshing leaves, and it is also the main factor affecting the structure of cut tobacco, which in turn determines the quality of cigarette rolling, such as single weight, cigarette density, end falling volume, short rate and rolling quality important factor of stability. At present, the determination of leaf structure is mainly to separate leaves of different sizes by sieving, and the result is expressed by the ratio of the accumulated mass on each layer or a certain layer of sieve to the total mass. On the one hand, due to the flexible and irregular sheet-like structure of the blades, phenomena such as "super-sieving", "leaking sievi...

Claims

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Application Information

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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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