Roller type tea leaf drying box

Abstract

The invention discloses a roller type tea leaf drying box and relates to the technical field of tea leaf drying equipment. The roller type tea leaf drying box comprises an outer barrel, wherein the outer barrel is internally provided with a plurality of drying inner barrels for containing tea leaves; the drying inner barrels can do revolution motion along the middle axis of the outer barrel; the drying inner barrels can do spinning motion along the middle axis of the drying inner barrels; a plurality of ventilation holes are formed in side walls of the drying inner barrels. According to the roller type tea leaf drying box disclosed by the invention, when the drying inner barrels do the revolution motion like a stirring paddle in an inner cavity of the stirring outer barrel, so that convolutional flow of hot air is formed in the inner cavity of the outer barrel, and a uniform hot temperature field is easily formed in the inner cavity of the outer barrel; when the drying inner barrels dothe spinning motion, the tea leaves contained in the drying inner barrels are driven to overturn and the tea leaves are overturned and fried, so that uniform heat exchange between the tea leaves andthe hot air can be realized; the heat efficiency is easy to improve and the yield of the tea leaves is also easy to improve.

Description

technical field [0001] The invention relates to the technical field of tea drying equipment, in particular to a drum-type tea drying box. Background technique [0002] The tea drying process is a crucial step in the tea preparation process, and the quality of the tea directly depends on whether the drying process is good or not. In the traditional tea preparation process, the tea leaves are dried by drying them in the sun. This method has a long production cycle and requires a lot of labor. In addition, it also depends on the weather. [0003] In the prior art, the drying process of tea leaves is gradually transformed into mechanical drying, which is mainly divided into two categories: one is to put the tea leaves on a continuous belt conveyor, so that the tea leaves form a thin layer on the belt conveyor, and then dry them on the belt conveyor. An electric heating wire along the direction of the belt conveyor is set above the belt conveyor, and the tea leaves laid on the b...

AI Technical Summary

Problems solved by technology

In the traditional tea preparation process, the tea leaves are dried by drying them in the sun. This method takes a long time to make and requires a lot of labor. In addition, it also depends on the quality of the weather.

[0003] In the prior art, the drying process of tea leaves is gradually transformed into mechanical drying, which is mainly divided into two categories: one is to put the tea leaves on a continuous belt conveyor, so that the tea leaves form a thin layer on the belt conveyor, and then dry them on the belt conveyor. An electric heating wire along the direction of the belt conveyor is set above the belt conveyor, and the tea leaves laid on the belt conveyor are dried through the electric heating wire. To be able to fully dry under a small temperature gradient, it is necessary to set up a long belt conveyor and heating wire, which not only needs to occupy more space, but also increases the fixed cost of the enterprise; the other is to put the tea into the In the drum, and the hot air is passed into the drum, and the rotation of the drum is used to drive the tea leaves to turn over. It achieves the purpose of frying the tea leaves, so that the hot air can dry the tea leaves and make the tea leaves heated evenly. However, in this method, in order to improve the equipment The utilization rate of the tea leaves in the drum reaches half or more of the volume of the inner cavity of the drum. During the drying process of so many tea leaves, the extrusion and collision of the tea leaves are likely to cause damage to the tea leaves during the drying process and affect the quality of the tea leaves. yield of tea

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