Tobacco curing barn

Abstract

The invention discloses a tobacco curing barn, and relates to the technical field of tobacco curing, the tobacco curing barn comprises a heating chamber and a tobacco loading chamber, a partition wall is arranged between the heating chamber and the tobacco loading chamber, a coal furnace and a heat exchanger arranged above the coal furnace are arranged in the heating chamber, a chimney is arranged at the top of the heating chamber, and the chimney is arranged in the heating chamber. An air inlet groove is formed in the position, corresponding to the heat exchanger, of the side, away from the partition wall, of the heating chamber. The partition wall is of a hollow structure, a tobacco loading door is arranged on the side, away from the partition wall, of the tobacco loading chamber, and an air supplementing channel is arranged at the top of the tobacco loading chamber. Air is indirectly heated through the heat exchanger with water as a carrier, the induced draft fan is arranged at the position, close to the tail, of the air inlet duct, and the air inlet duct and the air return duct communicate with an inner cavity of the tobacco loading chamber through multiple air inlets and air outlets which are formed at intervals, so that the hot air distribution effect is achieved, and the uniformity degree of airflow is improved; therefore, the airflow temperature deviation at different positions is reduced, and the quality and consistency of tobacco leaves are improved.

Description

technical field [0001] The invention relates to the technical field of tobacco leaf preparation, in particular to a tobacco leaf preparation barn. Background technique [0002] Tobacco leaf processing is inseparable from the tobacco leaf conditioning barn, through which the tobacco leaves are processed such as baking, drying, humidification, and redrying. The common tobacco leaf curing barn includes two parts: heating and baking. The heating part is used to provide heat, and the tobacco leaves in the curing part are dehumidified through air circulation to reduce the moisture content of the tobacco leaves. The heating part is divided into coal-fired heating, electric heating, heat pump heating, etc. according to the energy used. The baking part is divided into air-flow descending type curing barn and air-flow ascending type curing barn according to the direction of air flow. Although different types of tobacco leaf conditioning barns There are differences in the composition ...

AI Technical Summary

Problems solved by technology

Among the currently used tobacco leaf curing barns, the air-flow descending intensive barn heated by coal is more commonly used. The heating part of this barn is directly connected to the roasting part through the air inlet channel at the top and the air outlet channel at the bottom. Since there are many tobacco leaves hanging in the curing room, they are hung in layers in the vertical direction and equidistant in the horizontal direction. In this way, in the curing room, the distance between the tobacco leaves at different positions and the air inlet and return air channels Different, the flow rate and temperature of hot air around the tobacco leaves are not the same at different positions, so the quality of the tobacco leaves near the inside and outside of the curing barn is different, and the quality of the top and bottom of the tobacco leaves is different, resulting in tobacco leaves Baking quality control is very troublesome, and it is difficult to ensure the consistency of quality

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