Novel online drying method for heating cigarette tobacco shreds

A drying method and shredded tobacco technology, which is applied in the fields of tobacco, tobacco preparation, application, etc., can solve the problems of increased shredded shreds and waste of shredded tobacco, and achieves the effect of improving the shredded shred rate

Active Publication Date: 2021-05-07
CHINA TOBACCO ZHEJIANG IND
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the technical problem that the cut tobacco moisture is too low in the production process of cut tobacco, the amount of shredded shreds increases sharply to cause waste of shredded tobacco. The present invention adopts the combined drying production mode of "high-temperature airflow drying + warming and moistening + low-temperature drum drying" to ensure the moisture content of cut tobacco. Under the condition of less than 3%, increase the whole filament rate to more than 80%; at present, there is no similar production technology and production line for new heating cigarettes in the industry

Method used

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  • Novel online drying method for heating cigarette tobacco shreds
  • Novel online drying method for heating cigarette tobacco shreds

Examples

Experimental program
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Effect test

Embodiment 1

[0029] Combination drying production mode of embodiment 1 "high temperature air drying + low temperature drum drying"

[0030] Step 1) Raise the moisture content of the natural tobacco leaves to 18.5% through the leaf making section, shred the tobacco leaves, and control the width of the shredded tobacco to 1.0 mm;

[0031] Step 2) Drying the shredded tobacco with high-temperature air flow, controlling the temperature of the process gas to 230°C, the flow rate of the expansion steam to 40kg / h, the negative pressure of moisture removal to -7mbar, the speed of the fan to 2470rpm, and the anti-agglomeration steam to 0.5bar;

[0032] Step 3) Carry out drum drying treatment on shredded tobacco, control production negative pressure to be -20ubar, cylinder wall temperature to 130°C, drum rotation speed to 17rpm, hot air temperature to 130°C, moisture removal negative pressure to -20mbar, moisture content of shredded tobacco to 2.7 %, the whole silk rate is 80.5%. It meets the requir...

Embodiment 2

[0033] Example 2: Combination drying production mode of "high temperature air drying + warming and moistening + low temperature drum drying"

[0034] Step 1) Raise the moisture content of the natural tobacco leaves to 19.0% through the leaf making section, shred the tobacco leaves, and control the width of the shredded tobacco to 1.0 mm;

[0035] Step 2) Drying the shredded tobacco with high-temperature airflow, controlling the process gas temperature to 230°C, the expansion steam flow rate to 40kg / h, the moisture exhaust negative pressure to -7mbar, the fan speed to 2470rpm, and the anti-agglomeration steam to 1bar;

[0036] Step 3) Carry out warming and conditioning treatment again, control the gas flow rate of temperature increasing and conditioning to 60kg / h, increase the temperature of the shredded tobacco to 83°C, and control the content of humectant 1,2-propylene glycol in the shredded tobacco to 4%;

[0037] Step 4) Carry out drum drying treatment on shredded tobacco, ...

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Abstract

The invention aims to provide a novel online drying method for heating cigarette tobacco shreds. The method comprises the following two steps of 1) increasing the moisture of natural tobacco leaves to 18.5-20.5% through a leaf making section, shredding, and controlling the width of the tobacco shreds to 0.9-1.1 mm; (2) carrying out high-temperature airflow drying treatment on the tobacco shreds to reduce the moisture content of the tobacco shreds to 9.5-10.5%, (3) carrying out temperature increasing and tobacco shred moistening treatment on the tobacco shreds to increase the temperature of the tobacco shreds to 86+/-3 DEG C and control the content of a humectant in the tobacco shreds to 2-6%, and (4) carrying out roller drying treatment on the tobacco shreds to reduce the moisture content to 3% or below.

Description

technical field [0001] The invention belongs to the field of novel tobacco, and in particular relates to an online drying technology for heating shredded tobacco of cigarettes. Background technique [0002] Compared with traditional cigarettes, the basic condition for smoking new heated cigarettes is that the shredded tobacco needs to be preheated to about 300°C. If the moisture in the shredded tobacco is not sufficiently treated, water vapor will be generated during smoking, resulting in high smoke temperature. According to research, if natural tobacco leaves are to be used in heated cigarettes, the moisture content of cut tobacco must be reduced to less than 3%, so as to avoid excessively high smoke temperature caused by water vapor during smoking. Contents of the invention [0003] Aiming at the technical problem that the cut tobacco moisture is too low in the production process of cut tobacco, the amount of shredded shreds increases sharply to cause waste of shredded t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24B3/04
CPCA24B3/04
Inventor 周国俊吴键储国海许式强蒋健王骏鲁端峰黄锋李斌张明建夏倩蔡兴华徐建
Owner CHINA TOBACCO ZHEJIANG IND
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