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Filter tip trapped benzopyrene concentration distribution pattern measuring method

A concentration distribution, benzopyrene technology, applied in the field of cigarette technology research

Inactive Publication Date: 2013-09-11
CHINA TOBACCO HUNAN INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the above is to evaluate the filtering effect of various filters on smoke components through smoke analy

Method used

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  • Filter tip trapped benzopyrene concentration distribution pattern measuring method
  • Filter tip trapped benzopyrene concentration distribution pattern measuring method
  • Filter tip trapped benzopyrene concentration distribution pattern measuring method

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0029] Example 1

[0030] Six longitudinal distribution patterns of benzopyrene retained by filters

[0031] By cutting the six kinds of filters in different positions in the radial direction multiple times after suction, the content of benzopyrene in each part of the filter is analyzed, and the concentration of benzopyrene retained in the different parts of the filter is calculated. Polynomial fitting was performed on the concentration distribution of benzopyrene, and six longitudinal distribution modes of benzopyrene rejection by unstructured filters were obtained.

[0032] figure 2 The longitudinal distribution pattern of benzopyrene retention for six kinds of filters. Ordinary filter, external groove filter, column cavity filter, paper / vinegar composite filter, the longitudinal distribution pattern of retained benzopyrene concentration is similar ( figure 2 , A, B, E, F), showing a decreasing trend from the tobacco end of the filter tip to the smoking end. The built-in groove...

Example Embodiment

[0033] Example 2

[0034] Six cross-sectional radial distribution modes of benzopyrene retained by filters

[0035] In the study on the radial distribution of benzopyrene retained by the filter, on the basis of the radial cutting of the filter, the filter is cut in concentric circles with different radii in the radial direction. Analyze the amount of benzopyrene in the inner and outer parts of the cut filter separately (the three-segment filter is combined), and the filter can be obtained by calculating and using the relationship model between the radial cutting benzopyrene loss rate and the cutting area to correct The amount of benzopyrene and the concentration of benzopyrene retained in the mouth equidistant from the inside, middle and outside. A polynomial fitting was performed on the change law of the concentration of benzopyrene in the radial direction of the cross section of the filter, and the radial distribution pattern of the cross section of benzopyrene in different filt...

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Abstract

The invention discloses a filter tip trapped benzopyrene concentration distribution pattern measuring method which comprises the following steps: concentrically cutting a sucked filter tip along the axis after radially cutting with a laser, or radially cutting a sucked filter tip after concentrically cutting along the axis; after finishing cutting, separating the annular filter tip sections from the corresponding number of cylindrical filter tip sections, carrying out quantitative analysis on the benzopyrene content in the cut and separated filter tip sections; and after calculating the benzopyrene concentration, carrying out polynomial fitting on filter tip trapped benzopyrene concentration distribution data, or carrying out polynomial fitting and interpolation analysis to obtain the filter tip trapped benzopyrene concentration distribution pattern. By measuring the longitudinal and cross section radial distribution pattern of different filter tip trapped benzopyrene concentrations, the invention can master the filtration trapped distribution characteristics of benzopyrene in filter tips in different structures, can quantitatively analyze the benzopyrene trapping efficiency and contribution of all parts of filter tips in different structures in flue gas, and can be used for evaluation of flue gas benzopyrene filtering quality of functional filter tips and design improvement of the functional filter tips.

Description

technical field [0001] The invention relates to a method for measuring the concentration distribution pattern of benzopyrene intercepted by a filter, and belongs to the field of cigarette technology research. Background technique [0002] Cigarette filters can effectively intercept tar and other harmful components in mainstream smoke. When developing low-tar cigarette products, improving the smoke retention efficiency of filters is often the first choice of researchers. With the continuous expansion of the market for low-tar and ultra-low-tar cigarette products, more and more researches have been conducted on the interception efficiency, interception law and interception mechanism of various components in mainstream smoke by filters of various materials and specifications. Pay attention to. Keith first studied the mechanism of smoke filtering by filters, and the research results showed that there are three main ways of filtering smoke particles in filters: inertial collisi...

Claims

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Application Information

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IPC IPC(8): G01N33/00
Inventor 文建辉杜文钟科军彭斌张晓兵刘惠民
Owner CHINA TOBACCO HUNAN INDAL CORP
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