Method for expanding tobacco stems grade by grade

A technology of tobacco stems and tobacco stems, which is applied in the field of step-by-step expansion of tobacco stems, can solve the problems of weak processing strength, low processing cost, and high production cost, and achieve enhanced liquid absorption capacity, less loss of natural tobacco flavor, and crushing The effect of phenomenon reduction

Active Publication Date: 2017-01-11
CHINA TOBACCO YUNAN NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the heterogeneity of the raw material moisture and the difference in physical form of the tobacco stem, the tobacco stem after microwave expansion has a heavy burnt smell, often accompanied by carbonization of the stem core; Low stem utilization
[0003] In order to improve the quality and utilization rate of tobacco stem expansion, a variety of tobacco stem expansion application technologies have been developed in the industry, such as high-temperature and high-humidity expansion technology and superheated steam expansion technology. The treatment is relatively s

Method used

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  • Method for expanding tobacco stems grade by grade

Examples

Experimental program
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Effect test

example 1

[0015] Tobacco stem step-by-step expansion process (such as figure 1 shown): after the tobacco stem passes through the feeding device 1 and the flow metering device 2, it is fed to the screening and vibrating tank device 3, and after dust and impurities are removed, it is put into the drum heating device 4 for the first heating of the tobacco stem At about 10°C, the temperature of the tobacco stems is 30°C, and then the tobacco stems enter the heating and humidifying equipment (HT) 5 for the second heating of the tobacco stems, and the tobacco stems are pretreated at a temperature of 120°C for 30 minutes, and the tobacco stems increase in temperature. The temperature is about 10°C. After the tobacco stems are heated twice, the temperature of the tobacco stems is 40°C, and the moisture content is controlled at about 12%. Then it enters the heat exchange equipment 6 filled with saturated steam, and is pretreated by saturated steam heating or steam solid medium. , so that the hea...

Embodiment 2

[0017] Tobacco stem step-by-step expansion process (such as figure 1 shown): after the tobacco stem passes through the feeding device 1 and the flow metering device 2, it is fed to the screening and vibrating tank device 3, and after dust and impurities are removed, it is put into the drum heating device 4 for the first heating of the tobacco stem At about 15°C, the temperature of the tobacco stems is 35°C, and then the tobacco stems enter the heating and humidifying equipment (HT) 5 for the second heating of the tobacco stems, and the tobacco stems are pretreated at a temperature of 140°C for 20 minutes, and the tobacco stems increase in temperature. After the tobacco stems are heated twice, the temperature of the tobacco stems is about 50°C, and the moisture content is controlled at about 13%. After that, it enters the heat exchange equipment 6 filled with saturated steam, and is heated by saturated steam or preheated by steam solid medium. Treatment, so that the heat-exchan...

Embodiment 3

[0019] After the tobacco stem passes through the feeding device 1 and the flow metering device 2, it is fed to the screening and vibrating tank device 3, after dust and impurities are removed, it is placed in the drum heating device 4 for the first heating of the tobacco stem at about 20°C. The temperature of the tobacco stems is 40°C, and then the tobacco stems enter the heating and humidification device (HT) 5 for the second heating of the tobacco stems, and the tobacco stems are pretreated at a temperature of 160°C for 10 minutes, and the temperature of the tobacco stems is increased by about 20°C , after the tobacco stems are heated twice, the temperature of the tobacco stems is about 60°C, and the moisture content is controlled at about 14%; then it enters the heat exchange equipment 6 filled with saturated steam, and is heated by saturated steam or pretreated by steam solid media, so that after The heat-exchanged tobacco stems are released from high pressure to normal pre...

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Abstract

The invention provides a method for expanding tobacco stems grade by grade. The method comprises the steps of sieving and removing impurities, increasing the temperature of a roller (increasing the temperature for the first time), increasing the temperature and moistening again (increasing the temperature for the second time), carrying out saturated steam heat exchange (increasing the temperature for the third time), expanding by microwaves, cooling by air and removing impurities and the like. According to the tobacco stems expanded grade by grade through the microwaves, the carbonization of stem cores is greatly reduced, the expansion is uniform and the capability of absorbing material liquid is enhanced; the loss of natural cigarette flavor is less, and scorched and wood flavors are alleviated; the smoking quality of cigarettes is remarkably improved. According to the expanded tobacco stems prepared by the method provided by invention, the processing performance is more stable, and the processing performance of subsequent sliced stem and shredded stem products is remarkably improved; the physical form is more approximate to cut tobaccos; in a cutting process, a crushing phenomena are remarkably reduced.

Description

technical field [0001] The invention relates to a method for gradually expanding tobacco stems, belonging to the technical field of tobacco processing. Background technique [0002] Tobacco stem microwave expansion technology uses microwave as an energy source to vaporize the moisture inside the tobacco stem in a very short time, and uses the temperature change to rapidly expand the cells in the tobacco stem, and the volume of the expanded tobacco stem can reach the original 2 ~3 times or even higher. During the rapid expansion process, a certain chemical reaction occurs inside the tobacco stem. Through the test of smoking, the green and woody gas of the expanded tobacco stem is weakened, and it has a more obvious roasted aroma. However, due to the heterogeneity of the raw material moisture and the difference in physical form of the tobacco stem, the tobacco stem after microwave expansion has a heavy burnt smell, often accompanied by carbonization of the stem core; Terrier...

Claims

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Application Information

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IPC IPC(8): A24B5/16
CPCA24B5/16
Inventor 吴雨松张强高则睿吴恒郭生云韩智强孙力
Owner CHINA TOBACCO YUNAN NEW MATERIAL
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