Method for preparing tobacco stalk particles

A technology of tobacco stems and granules, which is applied in the field of preparation of expanded tobacco stem granules, which can solve the problems of incomplete opening of the micropore structure, uneven heating of tobacco stem raw materials, low filling value and expansion rate, etc., and achieve reduction of processing steps, Ensure the qualified rate of products and reduce the effect of crushing

Active Publication Date: 2009-12-16
云南瑞升香料技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above three patents all adopt the method of "expanding first and then cutting". The disadvantage is that the microwave expansion method using solid medium is difficult to operate during the expansion process, and the raw material of the tobacco stem is heated unevenly, which will affect the quality of smoking to a certain extent.
Granular expanded tobacco stems can be obtained after using this process, but the microporous structure of the prepared granular expanded tobacco stem cells is not completely opened, and the filling value and expansion rate are low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The tobacco stem raw material is subjected to vacuum rehydration treatment to make it have a certain flexibility, and the treated tobacco stem is granulated and screened to obtain tobacco stem particles with a particle size of less than 1 mm. The container is preheated to 20° C. to 30° C., and then the tobacco stem particles are added, and the tobacco stem particles are decompressed in the container to reduce the pressure to 0.006 MPa. Next, inject dimethyl ether vapor into the container, keep the pressure of 0.5 MPa for about 40 minutes, make the dimethyl ether vapor fully impregnate the tobacco stem particles, and reduce the pressure to close to atmospheric pressure without destroying the cell micropore structure, and start the process. Vacuum pump to 0.02MPa. Then inject superheated steam into the container to quickly raise the surface temperature of the tobacco stem particles in the container to 90°C, keep the pressure in the container for 10 seconds and then reduce...

Embodiment 2

[0025] The tobacco stem raw material is subjected to solvent extraction treatment to make it have certain flexibility, and the treated tobacco stem is granulated and screened to obtain tobacco stem granules with a particle diameter of 1 mm to 3 mm. The container is preheated to 45° C. to 50° C., and the tobacco stem particles are decompressed in the container to reduce the pressure to 0.001 MPa. Next, inject dimethyl ether vapor into the container, keep the pressure of 0.9 MPa for about 30 minutes, so that the dimethyl ether vapor can fully impregnate the tobacco stem particles, and reduce the pressure to close to atmospheric pressure without destroying the micropore structure of the cells, and start the process. Vacuumize to 0.03MPa with a vacuum pump; inject heated nitrogen into the container to quickly raise the surface temperature of the tobacco stem particles in the container to 70°C-80°C. After keeping for 55s, reduce the pressure inside the container to 0.04MPa. Microw...

Embodiment 3

[0027] The raw material of the tobacco stem is pre-treated by moisture regain or solvent extraction to make it have a certain degree of flexibility, and the treated tobacco stem is granulated and screened to obtain tobacco stem granules with a particle size of 4 mm to 6 mm. Preheat the container to 50-60°C, decompress the tobacco stem particles in the container, reduce the pressure to 0.003MPa, pass dimethyl ether vapor into the container, keep the pressure at 1.2MPa for about 10min, and make the dimethyl ether Fully impregnate the tobacco stem particles with ether vapor, reduce the pressure to close to atmospheric pressure without destroying the microporous structure of the cells, and start the vacuum pump to evacuate to 0.02MPa; inject water vapor into the container to quickly make the surface of the tobacco stem particles in the container The temperature rises to 80°C to 85°C. After keeping for 30s, reduce the pressure in the container, use the flash evaporation method to d...

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Abstract

The invention relates to a method for preparing tobacco stalk particles. Tobacco stalks are subjected to pretreatment, pelletization, sieving, decompression, soaking, expansion, drying and shaping to prepare the tobacco stalk particles. The method can effectively control the shape and the particle diameter of the tobacco stalk particles, can reach the quality requirement of a product process with only once expansion and shaping treatment, has good expansion effect and can effectively reduce a machining process link, thereby reducing the broken particles and ensuring the qualification rate of a product.

Description

technical field [0001] The invention belongs to the technical field of preparation methods of tobacco stem granules, and in particular relates to a preparation method of expanded tobacco stem granules. Background technique [0002] As the porous and multi-cavity structure of expanded tobacco stem particles and its excellent properties of reducing tar and carbon monoxide are gradually recognized by people, expanded tobacco stem particles are more and more used in cigarette formulations. [0003] The existing technology for preparing expanded tobacco stem particles mainly utilizes microwaves to heat and evaporate moisture in the tobacco stems instantaneously to expand the tobacco stems. [0004] Chinese patents CN 1518906A and CN 1698481A disclose a pretreatment process for tobacco stems. Microwave low-loss solid medium particles are used as the heat medium. Put it into the microwave heating chamber to heat, so that the volume of the tobacco stem increases and the density dec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24B5/16
Inventor 杨伟祖王保兴李军段安凌陈婉宋莲英李金华资文华
Owner 云南瑞升香料技术有限公司
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