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On-line detection method for cut tobacco filling value

A detection method and filling value technology, applied in the field of tobacco, can solve the problems affecting the accurate measurement of filling value, complex processing, and large temperature fluctuations of materials, and achieve accurate and reliable detection results, good data stability, and real-time output. Effect

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

[0003] At present, the filling value determination method is industry standard YC / T 152-2001 "Determination of Filling Value of Cigarette Shredded Tobacco", YC / T163-2003 "Determination of Filling Rate of Cigarette Expanded Cut Stem"; this method has the following shortcomings in detecting filling value : (1) The filling value data is not representative enough, and the filling value detection frequency of most manufacturers is 1 time / batch, which cannot truly reflect the fluctuation of filling value within a batch; (2) The detection efficiency of this method is low, and its pre-processing is complicated, and 10 parallel detections are required to further limit the increase of filling value detection frequency; (3) This method has obvious hysteresis, such regular sampling and static measurement methods are far from being able to accurately reflect the filling of shredded tobacco and stems in actual production in a timely manner. Recharge, so the quality of cigarettes cannot be guaranteed
The actual material temperature corresponding to the cut tobacco weight test point fluctuates greatly, and the regression modeling process does not fully consider the influence of material temperature, and the model verification is not carried out, resulting in a large limitation in the accuracy and practicability of the regression model
At the same time, under different temperature conditions, there are large differences in material volume, accumulation state, and material moisture retention capacity, which is one of the bottleneck problems that affect the accurate determination of filling value.
(3) With the advancement of laser volume detection technology, there are some patent reports for on-line filling value measurement, such as CN 110514553 A, which has obvious advantages in obtaining the material accumulation state on the conveyor belt, but the shredded tobacco is naturally There is a nonlinear correspondence between bulk density and filling value, and the natural bulk density cannot directly and intuitively reflect the fluctuation level of filling value

Method used

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  • On-line detection method for cut tobacco filling value
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  • On-line detection method for cut tobacco filling value

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Example 1: Detection and calculation of finished shredded tobacco.

[0020] The tobacco filling value d of a kind of "88 tobacco" of the finished tobacco is detected and calculated. Since it is finished shredded tobacco, a in the formula takes 6.0, b takes 0.017, c takes 40, and e takes 90. The process flow rate on the production line is designed to be 5000kg / h, and the corresponding m and v actual data within 1 hour of measurement are substituted into the formula for calculation.

[0021] The detection and calculation of the shredded tobacco filling value d of a batch (production date is October 10, 2019, see the second row of Table 1 below) of "88 shredded tobacco" is as follows; the cumulative mass m of shredded tobacco measured within 1 hour is 5014.1 kg, using a laser volume scanner to measure the cumulative volume v of shredded tobacco within 1 hour is 45.6m 3 ; The water content X is 12.7%, and the temperature Y is 29.5°C. Substituting the formula d=a-b×m / v+(X...

Embodiment 2

[0028] Example 2: Detection and calculation of shredded stems.

[0029] Detect and calculate the filling value d of the shredded stems for a certain brand of "HBS shredded stems". Since it is cut stem, a in the formula is 7.2, b is 0.0095, c is 162, and e is 22. The process flow rate on the production line is designed to be 2400kg / h, and the corresponding m and v actual data within 1 hour of measurement are substituted into the formula for calculation.

[0030] The cut tobacco filling value d of a batch (production date is January 3, 2020, see the second row of Table 2 below) of "HBS cut stems" is detected and calculated as follows; the cumulative mass m of cut tobacco measured within 1 hour is 2402.3 kg, using a laser volume scanner to measure the cumulative volume v of shredded tobacco within 1 hour is 60.6m 3 ; The water content X is 12.6%, and the temperature Y is 27.5°C. Substituting the formula d=a-b×m / v+(X-12.6%)×c+(Y-25) / e for calculation, the filling value d of shr...

Embodiment 3

[0036] Example 3: Detection and calculation of leaf shreds.

[0037]To detect and calculate the tobacco filling value d of shredded shreds "88 shredded shreds". Since it is shredded leaves, a in the formula is 6.0, b is 0.018, c is 40, and e is 90. The process flow rate on the production line is designed to be 4500kg / h, and the corresponding m and v actual data within 1 hour of measurement are substituted into the formula for calculation.

[0038] The detection and calculation of the filling value d of "88 shredded leaves" of a batch (production date is October 10, 2019, see the second row of Table 3 below) is as follows; the cumulative mass m of shredded tobacco measured within 1 hour is 4502.6 kg, using a laser volume scanner to measure the cumulative volume v of shredded tobacco within 1 hour is 38.3m 3 ; The water content X is 12.8%, and the temperature Y is 30.6°C. Substituting the formula d=a-b×m / v+(X-12.6%)×c+(Y-25) / e to calculate the filling value d of shredded toba...

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Abstract

The invention discloses an on-line detection method for a cut tobacco filling value. The method comprises the following steps: (1) measuring cut tobacco mass m and cut tobacco volume v in unit time on line; and (2) substituting the data of the cut tobacco mass m and the cut tobacco volume v into the following formula for calculation: d = a-b * m / v + (X-12.6%) * c + (Y-25) / e to obtain the cut tobacco filling value d. The precision of the filling value obtained by the method is higher than that of a detection method in the prior art, and the efficiency is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of tobacco, and in particular relates to an online detection method for the filling value of shredded tobacco based on laser volume detection Background technique [0002] Filling value of shredded tobacco is one of the important indicators of cigarette shredded tobacco quality. This index is used to evaluate the filling capacity of shredded tobacco in finished cigarettes, and has a relatively direct and important impact on physical indicators of cigarettes such as hardness and cigarette density distribution. Filling value is also an important indicator affecting the quality of cigarettes. It has an important impact on the burning temperature, dynamic draw resistance and release of safety components of cigarettes. It is one of the key indicators for quality control of cigarette industry enterprises. [0003] At present, the filling value determination method is industry standard YC / T 152-2001 "Determination ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N9/02G01N9/36
CPCG01N9/02G01N9/36G01N2009/024
Inventor 刘泽周沅桢徐淑浩何邦华胡瑞林杨继
Owner CHINA TOBACCO YUNNAN IND