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Filter tip trapped phenol concentration distribution pattern measuring method

A concentration distribution and filter technology, which is applied in the field of cigarette technology research, can solve problems such as the distribution mode of phenol intercepted by filters.

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 analysis. At present, there is no research report on the distribution mode of phenol intercepted by filters in filters.

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Longitudinal distribution pattern of six filter-tipped phenols

[0037] By cutting the six kinds of filters in different positions horizontally multiple times after suction, analyzing the phenol content in each part of the filter, calculating the concentration of intercepted phenol in different parts of the filter, and analyzing the distribution of phenol concentration in the axial direction By polynomial fitting, the longitudinal distribution patterns of phenol intercepted by six unstructured filters were obtained. figure 2Longitudinal distribution patterns of phenol intercepted by six kinds of filters. The intercepted phenol concentration of ordinary filter showed a decreasing trend from the tobacco end to the smoking end of the filter ( figure 2 , A), and the concentration decreased rapidly in the range of about 10mm from the end of the cut tobacco, and then the concentration at the suction end of the filter (28mm) decreased very little and tended to be stable. T...

Embodiment 2

[0039] Cross-sectional radial distribution patterns of six kinds of filter-tipped phenol

[0040] Different from the longitudinal distribution mode, in the research on the radial distribution of phenol intercepted by the filter, on the basis of the three equal parts in the radial direction of the filter, the filter is cut in concentric circles with different radii in the radial direction. Because the diameter of the filter tip is only about 7.6mm, only two concentric circles with different radii are cut in the radial direction, that is, R 1 =1.26mm, R 2 =2.52mm. Separately analyze the phenol content in the inner and outer filters after cutting (the three-section filter is combined), and calculate and use the relationship model between the radial cutting phenol loss rate and the cutting area to correct and obtain the equidistant distance of the filter. Amount and concentration of phenol trapped internally, centrally and externally. The polynomial fitting was carried out on t...

Embodiment 3

[0042] Spatial Distribution Patterns of Six Kinds of Filters Retaining Phenol

[0043] The research results of the longitudinal and cross-sectional radial distribution patterns of filter-tipped phenol can provide information on the concentration distribution of filter-tipped phenol in the longitudinal and cross-sectional radial directions, respectively. However, it cannot simultaneously display the concentration distribution information of the filter intercepted phenol in the longitudinal direction and the radial direction of the cross section. The simultaneous acquisition of phenol distribution information in the longitudinal and radial directions of the filter, that is, the spatial distribution pattern of phenol in the filter, can more comprehensively reflect the true pattern of smoke trapped by the filter. Firstly, cut the three radial parts of the filter into three sections, namely the shredded tobacco section, the middle section and the smoking section, and then carry out...

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Abstract

The invention discloses a filter tip trapped phenol 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 phenol content in the cut and separated filter tip sections; and after calculating the phenol concentration, carrying out polynomial fitting on filter tip trapped phenol concentration distribution data, or carrying out polynomial fitting and interpolation analysis to obtain the filter tip trapped phenol concentration distribution pattern. By measuring the longitudinal, cross section radial and spatial distribution pattern of different filter tip trapped phenol concentrations, the invention can master the filtration trapped distribution characteristics of phenol in filter tips in different structures, can quantitatively analyze the phenol 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 phenol 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 phenol intercepted by a filter tip, 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 collisio...

Claims

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Application Information

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IPC IPC(8): G01N15/08
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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