Method and device for ventilation in primary tobacco baking in bulk curing barn

A technology of dense curing room and ventilation method, which is applied in the fields of tobacco, tobacco preparation, application, etc., can solve the problems of increased energy consumption, reduced quality of tobacco leaf curing, and prolonged curing time, so as to reduce energy consumption and improve tobacco leaf curing. Quality, reduce the effect of temperature and humidity distribution unevenness

Inactive Publication Date: 2010-07-21
YUNNAN RES INST OF TOBACCO SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The uneven distribution of flow velocity and temperature and humidity, on the one hand, reduces the quality of the tobacco leaves; on the other hand, the different parts of the tobacco leaves have different curing progress, resulting in longer overall curing time and increased energy consumption.

Method used

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  • Method and device for ventilation in primary tobacco baking in bulk curing barn

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Embodiment Construction

[0016] The present invention is further described in conjunction with the accompanying drawings and examples. See figure 1 , the air-supply ventilation device of the present invention is composed of a circulation fan 1, an air-supply main pipe 2, a static pressure box 3, an air-supply standpipe 4, a horizontal air-supply pipe 5, a diffuser 6, and an Pipe support 7, moisture discharge port 8, air return port 9, hot blast stove 10, baffle plate 11, supplementary air port 12 constitute. Taking three rows of tobacco leaves hanging in the smoke chamber as an example, three groups of horizontal air supply pipes 5 are arranged in the horizontal direction. Diffusers 6 are placed on both sides of the horizontal air supply pipe 5 . In order to fully carry out heat exchange between the air returning from the smoke chamber and the hot blast stove, a baffle plate 11 is set in the middle of the heating chamber 13 . The air supply port 12 is located on the outer wall of the heating chambe...

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Abstract

The invention relates to a method and a device for the ventilation in primary tobacco baking in a bulk curing barn, which belong to the technical field of cured tobacco curing. Stratified air supply is adopted according to the layer number of tobacco which is placed in a tobacco chamber of the bulk curing barn; a horizontal blast tube is arranged in the centre of each layer along the length direction of the tobacco chamber to supply air to the two sides; the horizontal blast tubes of all the layers are connected with vertical blast tubes; and the air is returned at the lower part of the tobacco chamber in a centralized way to reduce the temperature distribution non-uniformity in the horizontal and vertical directions in the tobacco chamber. A stratified air supply type ventilation device for the primary tobacco baking in the bulk curing barn consists of a circulating fan, an air supply main, a plenum chamber, the vertical blast tubes, the horizontal blast tubes, an air diffuser, blast tube brackets, a moisture outlet, a return air inlet, an air heating furnace, a baffle and an air tuyere. The method and the device for ventilation in the primary tobacco baking in the bulk cuing barn improve the tobacco baking quality and reduce the energy consumption of tobacco baking.

Description

technical field [0001] The invention relates to a ventilation method and a ventilation device for primary curing of tobacco leaves in a dense curing barn, belonging to the technical field of flue-cured tobacco modulation. Background technique [0002] Curing is a key factor in determining the quality and usability of tobacco leaves. Advanced tobacco leaf curing methods and equipment are the basis for accurately realizing the scientific curing process, improving the quality of tobacco leaves, and reducing labor intensity and production costs. [0003] At present, the ventilation methods of dense barns mainly include air-flow ascending type and air-flow descending type. The airflow ascending type uses a circulating fan to centrally supply air from the lower part of the smoking room, and the hot air sent flows through the suspended tobacco leaves in the smoking room and returns to the heating room from the upper part of the same side of the smoking room. Due to the large size...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24B3/10A24B3/04
Inventor 和智君罗会龙彭金辉张强李红武王伟王永乔简彬王浩雅
Owner YUNNAN RES INST OF TOBACCO SCI
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