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Method and device for controlling oxygen content in drum type cut tobacco drying process

A drying process, oxygen content technology, applied in the preparation of tobacco, application, tobacco, etc., can solve the problem of unable to control the oxygen content of shredded tobacco, and achieve the effect of control accuracy and stability

Inactive Publication Date: 2014-02-12
CHINA TOBACCO FUJIAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the traditional drum-type shredded tobacco drying equipment cannot control the oxygen content in the shredded tobacco drying process. In the actual production process, it is impossible to set different drying oxygen content conditions according to the quality characteristics of different shredded tobacco incoming materials, so as to improve the taste and smoking quality of shredded tobacco after drying.

Method used

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  • Method and device for controlling oxygen content in drum type cut tobacco drying process
  • Method and device for controlling oxygen content in drum type cut tobacco drying process
  • Method and device for controlling oxygen content in drum type cut tobacco drying process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Take grade A cigarettes and shred the shredded tobacco, and carry out drum drying according to the process parameters in Table 1.

[0022] Table 1 Embodiment 1 parameter setting

[0023] parameter name

[0024] Implementation effect evaluation: Organize professional cigarette smokers to conduct sensory evaluation on the shredded tobacco produced by parameter 1 and parameter 2 respectively. The results showed that the shredded tobacco produced by parameter 2 had more aroma, less miscellaneous gas and less irritating smoke than the shredded tobacco produced by parameter 1. The implementation effect shows that the oxygen content in the shredded tobacco drying process is reduced, which is conducive to improving the taste and smoking quality of shredded tobacco.

Embodiment 2

[0026] Take B brand cigarettes and shred the shredded tobacco, and carry out drum drying under the condition of oxygen content of 1%-5% according to the process parameters in Table 2.

[0027] Table 2 Parameter setting of Embodiment 2

[0028] parameter name

[0029] Implementation effect evaluation: Professional cigarette smokers are organized to conduct sensory evaluation on the shredded tobacco produced by the five parameters. The results showed that the cut tobacco of B brand was dried under the condition of parameter 2, that is, the oxygen content was controlled at 2%, and the taste and smoking quality of the shredded tobacco were the best. Therefore, for the production of brand B cigarettes, the oxygen content in the drying process should be set at 2%.

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Abstract

The invention relates to a method and a device for controlling the oxygen content in the drum type cut tobacco drying process. An oxygen-nitrogen separation system is added in front of the traditional drum fresh air quantity control device, and can be used for enabling the oxygen content of the gas entering a drying drum to be adjustable; two cut tobacco feeding gas-locking devices are respectively added at a drum cut tobacco inlet and a drum cut tobacco outlet, so that the oxygen content in the drum is avoided being influenced by the ambient air which permeates into the drum through an inlet and an outlet of the drum; an oxygen content detection device is added into a drum hot air moisture removal pipeline and can be used for detecting the oxygen content in the moisture removal hot air in real time; a proportion integration differentiation (PID) control unit is added, and can be used for automatically adjusting the oxygen-nitrogen separation system by comparing the detection result of the oxygen content in the moisture removal hot air with the set control target value of the oxygen content in the moisture removal hot air so as to control the oxygen content of the hot air entering the drum and finally realize the control accuracy and stability of the oxygen content in the moisture removal hot air.

Description

technical field [0001] The invention relates to a production process and equipment in the tobacco industry, in particular to a method and device for controlling the oxygen content in the drying process of drum shredded tobacco in the tobacco processing process. Background technique [0002] Cut tobacco drying process is one of the key processes in the production process of cigarette shreds. In this process, the shredded tobacco is heated and loses moisture at the same time through the conduction heat transfer of the tube wall and the convective heat transfer of hot air, so as to realize the purpose of loosening and curling the shredded tobacco and increasing the filling capacity of the shredded tobacco; The chemical reaction improves the taste and smoking quality of shredded tobacco. The drum device has the advantages of large processing capacity, flexible operation, and relatively low cost, and has become the main method for drying materials in the tobacco shred process. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24B3/04
Inventor 陈河祥王锐亮李跃锋姜焕元曾强林志平黄宣康阙文豪周跃飞李清华邱玉春
Owner CHINA TOBACCO FUJIAN IND
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