Airflow lift type flue-cure tobacco scattered leaf cuttage layered curing method

Abstract

The invention discloses an airflow lift type flue-cure tobacco scattered leaf cuttage layered curing method. The method comprises the following steps of: at a preheating stage, raising the temperature of tobacco leaves from room temperature to proper temperature as soon as possible to promote softening of the leaves; at a yellowing and lodging stage, raising temperature to yellow and lodge the tobacco leaves at a bottom shed, a middle shed and a top shed in layers; at a withering and collapsing stage, raising the temperature, controlling the wet bulb temperature and the curing time, withering and collapsing the tobacco leaves at the bottom shed, the middle shed and the top shed in layers by using vertical temperature difference and safely fixing color; at a slice drying stage, controlling dry and wet bulb temperature to dry the tobacco leaves in layers; at a stem drying stage, controlling the dry and wet bulb temperature to cure until the tobacco stems are fully dried, flaming out, dampening and discharging from a kang. According to the method, the yellowing and lodging stage, the withering and collapsing stage and the slice drying stage are stepped in the curing process and are divided into two obvious processes respectively to perform the layered curing; the method is easy, convenient and safe to operate; the layered curing can be performed aiming at the bottom shed, the middle shed and the top shed of a curing house; black tobaccos, yellow slices and green stems are obviously reduced; the color and the oil of the tobacco leaves are increased; the tobacco leaf curing quality is obviously improved.

Description

Technical field [0001] The invention belongs to the field of tobacco leaf roasting, and particularly relates to a layered roasting method of flue-cured tobacco loose leaf inserting (skewer) with airflow. Background technique [0002] With the rapid development of society, people have more and more demands for high-quality tobacco. In the production of flue-cured tobacco, variety and cultivation are the basis, and baking is the key. [0003] At present, the roasted tobacco leaves are mostly roasted with loose leaf inserts (skewers). This roasting method has a large amount of tobacco, which is more than 25% more than that of hanging rods. It is easy to operate and the inner quality of the roasted tobacco is good and labor-saving. , Energy-saving, suitable for family farms, workshop-based baking operations. [0004] At present, the intensive roasting process promoted by China Tobacco Company is a universal technical specification. Some process indicators cannot be adapted to the roasti...

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Problems solved by technology

[0011] The purpose of implementing the present invention is to provide a layered baking method for flue-cured tobacco loose leaves with rising airflow, which aims to solve the problem that the temperature of dry and wet bulbs does not change significantly in stages during the yellowing stage and the color fixing stage. Shed, middle shed, ceiling (high temperature zone, transition zone, low temperature zone) the tobacco leaf curing is not targeted, resulting in low quality of tobacco leaf curing

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