Shredded tobacco baking experiment method

An experimental method and shredded tobacco technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as unfavorable competitiveness, difficult testing, and difficulty in obtaining all data, so as to improve market competitiveness and save production costs , The effect of speeding up the development process

Inactive Publication Date: 2010-11-10
CHINA TOBACCO GUANGDONG IND
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  • Application Information

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Problems solved by technology

Because the airflow movement and temperature distribution in the shredded tobacco dryer are difficult to test, it is difficult to obtain all the data through conventional methods
At present, there are experimental methods for obtaining tobacco processing parameters through experimental machines, but there are defects such as difficulty in organizing experiments, rel

Method used

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  • Shredded tobacco baking experiment method
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Examples

Experimental program
Comparison scheme
Effect test

Example

[0041] Example 1. Airflow drying method

[0042] Airflow tube drying is used in the drying and separation of powder and granular materials. At present, the airflow drying equipment used in the domestic tobacco industry mainly includes the HXD high temperature airflow leaf dryer of Dickinson legg company and the HDT superheated steam dryer of Germany HAUNI company. In this way, in addition to establishing the aerodynamic model and the geometric model of the airflow drying equipment, the following factors can be further considered:

[0043] The heat transfer of the airflow dryer is mainly based on convection heat transfer between the airflow and the tobacco in the airflow dryer, so the convection heat transfer equation needs to be introduced;

[0044] The mass transfer of the air dryer machine needs to introduce the mass transfer process model between the air stream and the tobacco in the air dryer;

[0045] In the droplet evaporation model, an equation that considers the droplet evapor...

Example

[0063] Example 2: Drum drying method

[0064] Compared with airflow drying, drum drying has the advantages of high heat energy utilization efficiency, stable product drying quality, and less product aroma loss. However, it is difficult to test the air flow in this kind of drying equipment on site. For this reason, a mathematical model needs to be established:

[0065] Firstly, introduce the airflow continuity equation, momentum equation and energy equation; secondly, according to the actual size of the drum drying equipment, establish the drum drying geometric model, including the drum (including hot air duct, exhaust duct, inlet, outlet ) Geometric model, geometric model of the inner plate of the drum, etc.;

[0066] Third, mesh the geometric model to establish a topological grid system of the geometric space model;

[0067] Finally, the process parameters of the drying equipment are used as boundary conditions, and the continuity equation, momentum equation, and energy equation des...

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Abstract

The invention discloses a shredded tobacco baking experiment method, which comprises the following steps: receiving experiment type instructions; selecting the experiment types; selecting corresponding shredded tobacco baking mathematical models from a preset model base according to the selected experiment types, wherein the shredded tobacco baking mathematical models include an air flow aerodynamic model and a drying equipment geometric model; receiving the experiment parameters corresponding to the selected experiment types; adding the experiment parameters into the selected mathematical models; and carrying out simulation operation on the selected mathematical models to obtain the shredded tobacco baking experiment results. Distribution parameters of air flow parameters, temperature and the like in the shredded tobacco baking process can be conveniently obtained through numerical value simulation of the shredded tobacco baking process by a computer, the experiment cost can be saved, and the experiment period can be accelerated.

Description

technical field [0001] The invention relates to a method for using a computer to perform a numerical simulation experiment, in particular to an experiment method for drying shredded tobacco. Background technique [0002] Tobacco drying is an important production process in the tobacco industry, and processing parameters have a very important impact on the sensory quality and chemical composition of the product. Because the airflow movement and temperature distribution in the shredded tobacco dryer are difficult to test, it is difficult to obtain all the data through conventional methods. At present, there are experimental methods for obtaining tobacco processing parameters through experimental machines, but there are defects such as difficulty in organizing experiments, relatively high cost and time, and are not conducive to popularization and use. Due to the limitation of cut tobacco drying experimental methods, the product development and production cycle is longer, which...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 江威
Owner CHINA TOBACCO GUANGDONG IND
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