Method for drying tobacco shreds

A drying method and technology for cut tobacco, which are applied in the treatment of cutting cut tobacco by stages and in the field of cut tobacco drying, can solve the problems of reducing the filling value of cut leaves, loss of aroma quantity of cut tobacco, and low filling value, so as to maintain the aroma and quality characteristics, and improve the effect of Fragrance ingredient content, effect of resolving adverse effects

Inactive Publication Date: 2013-01-02
YUNNAN RES INST OF TOBACCO SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problems in this patent are: ①Although the moisture content of cut tobacco is well controlled, it does not solve the problem of low filling value; ②The entire drying process is divided into many stages, and the requirements for heating, measuring, and control equipment are relatively high, and the equipment cost is relatively high. high
However, this method has the following disadvantages: the process temperature in the airflow drying step is 70°C to 100°C, which cannot achieve rapid dehydration of high-humidity leaf silk, and the filling value of dried leaf silk is

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Example 1: Drying of leaf shreds in the upper module

[0020] A method for drying shredded tobacco, comprising shredded tobacco HT tunnel-type warming and humidifying pretreatment, a drum drying stage and a microwave drying and setting stage; details are as follows:

[0021] ⑴HT tunnel-type heating and humidification pretreatment: the shredded tobacco cut by the cutting machine enters the HT tunnel-type heating and humidification equipment through conveying and feeding equipment, and the shredded tobacco is pretreated with steam at a temperature of 110°C and a pressure of 6bar to 7bar , the temperature of the cut tobacco after pretreatment is 50°C-60°C, and the moisture content is controlled at 21%-22%;

[0022] (2) The first drying stage——drum drying stage: the pretreated shredded tobacco enters the drum drying equipment, the temperature of the drum wall is controlled at 85°C to 90°C, and the outlet moisture of the control system is set to 15±1%, so that the drum outle...

Embodiment 2

[0024] Embodiment 2: Middle module leaf shreds drying

[0025] A method for drying shredded tobacco, comprising shredded tobacco HT tunnel-type warming and humidifying pretreatment, a drum drying stage and a microwave drying and setting stage; details are as follows:

[0026] ⑴HT tunnel-type heating and humidification pretreatment: the shredded tobacco cut by the cutting machine enters the HT tunnel-type heating and humidification equipment through conveying and feeding equipment, and the shredded tobacco is pretreated with steam at a temperature of 110°C and a pressure of 6bar to 7bar , the temperature of the cut tobacco after pretreatment is 50°C-60°C, and the moisture content is controlled at 20%-21%;

[0027] (2) The first drying stage——drum drying stage: the pretreated shredded tobacco enters the drum drying equipment, the temperature of the drum wall is controlled at 70°C to 75°C, and the outlet moisture of the control system is set to 15±1%, so that the drum outlet The...

Embodiment 3

[0029] Embodiment 3: drying of lower module shredded leaves or shredded stems

[0030] A method for drying shredded tobacco, comprising shredded tobacco HT tunnel-type warming and humidifying pretreatment, a drum drying stage and a microwave drying and setting stage; details are as follows:

[0031] ⑴HT tunnel-type heating and humidification pretreatment: the shredded tobacco cut by the cutting machine enters the HT tunnel-type heating and humidification equipment through conveying and feeding equipment, and the shredded tobacco is pretreated with steam at a temperature of 110°C and a pressure of 6bar to 7bar , the temperature of the cut tobacco after pretreatment is 50°C-60°C, and the moisture content is controlled at 21%-22%;

[0032] (2) The first drying stage——drum drying stage: the pretreated shredded tobacco enters the drum drying equipment, the temperature of the drum wall is controlled at 80°C to 85°C, and the outlet moisture of the control system is set to 15±1%, so t...

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PUM

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Abstract

The invention relates to a method for drying tobacco shreds, and belongs to the technical field of tobacco processing. The method for drying the tobacco shreds comprises tobacco shred hyper transport (HT) tunnel type heating and humidifying pretreatment, rotary drum drying stage and microwave drying and shaping stage. HT tunnel type heating and humidifying equipment, rotary drum drying equipment and a control system which are adopted by the method are all purchased from the market, wherein microwave drying equipment which is purchased from the market is reconstructed, microwave magnetrons with ultrahigh frequency (2450 megahertz) and monotube miniwatt (1.5 kilowatts) are adopted instead and are controlled in group, and a rotary drum conveying mode is adopted. The method adopts the combination of two drying modes, and the extensive drying and fine drying of the tobacco shreds are sequentially combined; the method has the advantages that the tobacco shreds are dried and expanded uniformly, and have stable quality; the adverse effects which are caused to the aroma and quality of the tobacco shreds during the conventional high-temperature drying process are effectively solved, so that the purposes of improving the quality and increasing the aroma are realized; and the tobacco shreds are stably shaped, and are high in filling value and good in processing resistance.

Description

Technical field: [0001] The invention relates to a method for drying shredded tobacco, in particular to a method for drying shredded tobacco in stages, and belongs to the technical field of tobacco processing. Background technique: [0002] In the cigarette production process, the technological task of the drying process of shredded tobacco (including shredded leaves, shredded stems, shredded shreds, etc.) is to remove part of the water to meet the processing requirements of subsequent processes, and to improve the filling value and process resistance of shredded tobacco, improve Objectives for the organoleptic quality of cigarettes. At present, there are two main online drying methods for shredded tobacco widely used by cigarette companies in my country. One is drum drying. The process temperature must be 130±20°C to reduce the moisture content of shredded tobacco from 20%~28% to 12±1%. After drying, the aroma of shredded tobacco is better, but the expansion rate is not hig...

Claims

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Application Information

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IPC IPC(8): A24B3/04
Inventor 张强杨威李红武孙力王理珉卢伟张天剑郭生云
Owner YUNNAN RES INST OF TOBACCO SCI
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