Pretreatment technology for reducing carbonization of tobacco stems after being expanded by microwave

A microwave expansion and pretreatment technology, applied in tobacco, tobacco preparation, application, etc., can solve the problems of carbonization of the core, poor expansion uniformity, processing characteristics of tobacco stem products and influence of smoking quality, etc. The effect of uniform temperature, improved cut stem quality and usage ratio

Inactive Publication Date: 2014-04-23
YUNNAN RES INST OF TOBACCO SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above existing technologies all have shortcomings such as poor expansion uniformity and carbonization of the core, which will have a great

Method used

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  • Pretreatment technology for reducing carbonization of tobacco stems after being expanded by microwave

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Experimental program
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Effect test

Embodiment 1

[0018] The present invention is an improvement based on the present technology. The pretreatment process of the present invention for reducing carbonization of tobacco stems after microwave expansion includes the steps of tobacco stem preparation, feeding 1, screening, cutting, wind feeding, feeding 2, temperature increasing and humidifying, and microwave expansion. The equipment used in the present invention is purchased on the market.

[0019] The implementation process of the present invention is as follows:

[0020] a. The tobacco stems prepared according to the conventional method are controlled by an electronic belt scale to control the constant flow rate and enter the screening process; and the tobacco stems in the temperature increasing and humidifying process are controlled by an electronic belt scale to control the constant flow rate.

[0021] b. Tobacco stems are sieved by a vibrating sieving machine with a sieving aperture of 5 mm;

[0022] c. cutting the sieved ...

Embodiment 2

[0028] Process a, b, c, d are the same as embodiment 1. The differences are:

[0029] Tobacco stems enter the temperature increasing and humidifying process through the electronic belt scale to control the flow rate constant. Moisture is 14.5% by mass percentage.

[0030] The tobacco stems after the warming and humidification process enter the microwave expansion equipment, and the moisture content of the tobacco stems after the microwave expansion process is controlled to be 4.5% by mass.

Embodiment 3

[0032] Process a, b, c, d are the same as embodiment 1. The differences are:

[0033] Tobacco stems enter the heating and humidification process through electronic belt scales to control the flow rate to be constant. Moisture is 15% by mass percentage.

[0034] The tobacco stems after the warming and humidifying process enter the microwave expansion equipment, and the moisture content of the tobacco stems after the microwave expansion process is controlled to be 5% by mass.

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Abstract

The invention relates to a pretreatment technology for reducing carbonization of tobacco stems after being expanded by microwave, and belongs to the technical field of tobacco processing. The pretreatment technology for reducing carbonization of tobacco stems after being expanded by microwave is the improvement on basis of prior art. The pretreatment technology for reducing carbonization of tobacco stems after being expanded by microwave provided by the invention comprises the following steps: preparing tobacco stems, primary feeding, screening, slitting, air-conveying, secondary feeding, warming and wetting, and expanding by microwave. The pretreatment technology for reducing carbonization of tobacco stems after being expanded by microwave has the advantages that, the production flow is controlled by quantitatively feeding, and obvious effect is provided for keeping stable quality of each process; when the tobacco stems are in the warming and wetting process, the tobacco stem slitting technology is used for enabling moisture and temperature of the core parts, cambiums and cortexes of the tobacco stems to be more uniform, and the carbonization of the core part in the microwave expansion process due to that the core part has more moisture and lower heat radiating effect than the surface is reduced. The method provided by the invention is significant in improving cut stem quality and use ratio, and reducing the cost of cigarette enterprises.

Description

Technical field: [0001] The invention relates to a pretreatment process for reducing carbonization of tobacco stems after microwave expansion, and belongs to the technical field of tobacco processing. Background technique: [0002] Tobacco stems are an important part of tobacco leaves. At present, expanded tobacco stems have been widely used in the production of cigarettes. Expanded tobacco stems can effectively reduce the carbon monoxide and tar produced when cigarettes are burned and smoked, and have a certain effect of reducing harm and tar. After puffing, the miscellaneous gas of the tobacco stems is significantly reduced, and the smoking quality is improved. Tobacco stems contain polar water molecules, which have dielectric properties that strongly absorb microwaves. When heated by microwave radiation, they collide and rub violently with microwave frequencies to generate a large amount of heat, thereby causing water to evaporate rapidly and generate vapor pressure. Pre...

Claims

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Application Information

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IPC IPC(8): A24B3/18
Inventor 张强杨威董高峰王理珉向明田丽梅
Owner YUNNAN RES INST OF TOBACCO SCI
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