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Tobacco shred drying method

A drying method and shredded tobacco technology, applied in tobacco, tobacco preparation, application, etc., can solve the problems of loss of beneficial chemical components in shredded tobacco, and achieve the effects of good quality characteristics, economical use of heat energy, and low phase equilibrium temperature

Inactive Publication Date: 2012-06-27
HONGYUN HONGHE TOBACCO (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen from this that at this stage, the method of heating and gasification to remove the moisture of the material is adopted for drying the shredded tobacco at the present stage. Inherently good qualities adversely affected

Method used

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  • Tobacco shred drying method
  • Tobacco shred drying method
  • Tobacco shred drying method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The raw material is 2009 C2F tobacco leaves. The specific process steps are: ① balance of moisture content and temperature of cut tobacco: balance the moisture content of cut tobacco to 21%, and balance the temperature to 15°C; ② pre-freezing of cut tobacco: balance the balanced The shredded tobacco is quickly frozen to -40°C at a cooling rate of -0.6°C / min, and kept for 0.5h; ③Sublimation drying of shredded tobacco: put the pre-frozen shredded tobacco into a vacuum chamber for drying, where the absolute pressure in the vacuum chamber is 60Pa, heat The plate temperature is 35°C, and the time is 2 hours; ④Remoisture of shredded tobacco: Pass the freeze-dried shredded tobacco through the moisture resurgence equipment, and rehydrate the shredded tobacco until the moisture content of the shredded tobacco is 12.5%.

[0020] Table 1 shows the comparison of shredded tobacco structure between the conventional process and the process of the present invention, the comparison of sh...

Embodiment 2

[0029] The raw material is 2010 B2F tobacco leaves. The specific process steps are: ① balance of moisture content and temperature of cut tobacco: balance the moisture content of cut tobacco to 23%, and balance the temperature to 20°C; ② pre-freezing of cut tobacco: balance the balanced The shredded tobacco is quickly frozen to -40°C at a cooling rate of -0.8°C / min, and kept for 1.2h; ③Sublimation drying of shredded tobacco: put the pre-frozen shredded tobacco into a vacuum chamber for drying, where the absolute pressure in the vacuum chamber is 55Pa, and heat The temperature of the board is 35°C, and the time is 3 hours; ④Remoisture of shredded tobacco: Pass the freeze-dried shredded tobacco through a moisture resurgence device, and regain moisture until the moisture content of shredded tobacco is 12.0%.

[0030] Table 4 shows the comparison of shredded tobacco structure between the traditional process and the process of the present invention, the comparison of shredded tobacco...

Embodiment 3

[0038] Repeat Example 1, with the following differences: the moisture content of cut tobacco is balanced to 20%, and the temperature is balanced to 10°C; the balanced tobacco is quickly frozen to -35°C at a cooling rate of -0.9°C / min, and Keep for 1.5h; the absolute pressure in the vacuum chamber is 70Pa, the temperature of the heating plate is 20°C, and the time is 2h.

[0039] Table 7 shows the comparison of shredded tobacco structure between the traditional process and the process of the present invention, the comparison of shredded tobacco filling value is shown in Table 8, and the sensory quality evaluation of cigarettes after rolling is shown in Table 9.

[0040] Table 7 Shredded Tobacco Structure Comparison Table

[0041]

[0042] Table 8 Comparison table of shredded tobacco filling value

[0043] Filling value (cm 3 / g)

traditional process

4.7

Process treatment of the present invention

4.5

[0044] Table 9 Sensory Qual...

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Abstract

The invention discloses a tobacco shred drying method. The moisture content of cut tobacco shreds is balanced to 20-24%, and the temperature is balanced to 10-30 DEG C. The balanced tobacco shreds are quickly frozen to be under the temperature of -40 DEG C to -35 DEG C at a cooling rate of -0.06 DEG C / min to -1.0 DEG C / min and maintained for 1-4 hours. Pre-frozen tobacco shreds are placed into a vacuum chamber to be dried, wherein absolute pressure in the vacuum chamber is 50-70 Pa, the temperature of a heating plate is 20-40 DEG C, and drying time is 0.5-4 hours. Finally, the moisture content of tobacco shreds is regained to 11-13%. By means of the method, quality characteristics and original shape of raw materials can be maintained well, and the phenomena including surface hardening, fragrance loss and the like caused by surface precipitation of soluble matter contained in the tobacco shreds are avoided. The method is simple and low in energy consumption, can improve smoking quality of the tobacco shreds remarkably, and has good application prospect.

Description

technical field [0001] The invention belongs to the technical field of shredded cigarette production, and in particular relates to a shredded tobacco drying method capable of effectively improving the quality of cigarettes. Background technique [0002] At present, there are two main ways of drying leaf shreds used in cigarette making silk, namely drum drying and airflow drying. The principle of drum-type shredded drying is: firstly, the steam heats the heating wall and the heating sheet; the shredded tobacco after being heated and humidified by HT is input from the vibrating tank; the heating wall and the heating sheet heat the shredded tobacco by conduction, so that the moisture of the shredded tobacco can be transferred Evaporation; at the same time, the shredded tobacco is heated by the hot air flow, the moisture in the shredded tobacco is absorbed and discharged from the cylinder of the shredded tobacco dryer. The temperature control range of the cylinder wall is 150-18...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24B3/04
Inventor 何邦华曾晓鹰朱勇向成明李水荣申晓峰华一崑陈文周沅帧杨丽萍庄嘉
Owner HONGYUN HONGHE TOBACCO (GRP) CO LTD
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