Tobacco curing room with hot air internal circulation

Abstract

The invention discloses a tobacco curing room with hot air internal circulation, which comprises walls and a ceiling fixedly arranged on the walls. A plurality of upper hot air raising channels are arranged in the ceiling with a closed upper end; the upper ends of the upper hot air raising channels are open; the lower ends of the upper hot air raising channels are communicated with lower hot air raising channels arranged in the walls; inlet opening / closing valves are arranged on the lower hot air raising channels; the ceiling consists of a plurality of double-layer insulated blocks with cavity insulated layers; two sides of each double-layer insulated block are provided with vents; and the cavity insulated layers of the longitudinal double-layer insulated blocks of the ceiling are communicated through the vents to form the plurality of upper hot air raising channels. The tobacco curing room with hot air internal circulation has the advantages of simple structure and low manufacturing cost, realizes the hot air internal circulation in the tobacco curing room, and adjusts the temperature and humidity of upper, middle and lower layers of tobacco leaves in the tobacco curing room in abalanced way, so that proper temperature and humidity can be maintained in the tobacco curing room, the curing quality of the tobacco leaves is ensured, the energy is saved and the environment is protected.

Description

technical field [0001] The invention relates to a tobacco drying room for drying tobacco leaves, in particular to a smoking drying room with internal circulation of hot air flow. Background technique [0002] After the tobacco leaves are harvested, their respiration continues until the loss of life activities due to the leaves leaving the parent body. During this process, a series of physiological and biochemical reactions occur inside the leaves through the action of respiratory enzymes: the contents are continuously decomposed, transformed, and synthesized to complete the modulation of tobacco leaves in a suitable temperature and humidity environment. The modulation of air-dried tobacco (burley tobacco, Maryland tobacco) is completely completed under the natural temperature and humidity conditions in the air-drying room. modulation. At present, the relatively advanced smoke-drying room, although the roof adopts double-layer plastic resin tiles and a humidity-regulating l...

AI Technical Summary

Problems solved by technology

At present, the relatively advanced smoke-drying room, although the roof adopts double-layer plastic resin tiles and a humidity-regulating layer to achieve better heat preservation and humidity-regulating effect, but in areas above 8000-1000 meters above sea level, most of the time the smoke-drying room is in a low temperature due to heat preservation. In a closed state, 3-4 layers of tobacco leaves are generally aired in the air-drying room. Due to the high temperature at noon and the direct sunlight on the roof of the air-drying room, it is easy to cause a large difference in temperature and humidity between the upper, middle and lower layers in the air-drying room, and the tobacco leaves are easy to dry. Rotten and rotten, which is not conducive to the modulation quality of the whole shed tobacco leaves and brings great losses to tobacco farmers

In some tobacco-producing areas, the method of installing solar panels on the tobacco drying room to absorb heat and transfer it to the middle and lower layers of tobacco leaves or burning coal to increase the temperature of the middle and lower layers of tobacco leaves is used to solve the above problems. Although certain effects have been achieved, there are still the following: Disadvantages: 1) High cost, serious imbalance between input and output; difficult for enterprises and tobacco farmers to bear; 2) Changing air-dried tobacco into cured and flue-cured tobacco changes the internal components of air-dried tobacco and changes the style of air-dried tobacco, which is not conducive to cigarettes Industrial formula use; 3) Increased carbon emissions, which is not conducive to energy saving and environmental protection; 4) Increased labor, which is not conducive to large-scale promotion and application

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