Automatic tea drying and cooling integrated equipment

Abstract

The invention discloses automatic tea drying and cooling integrated equipment and relates to the technical field of tea drying equipment. The equipment comprises an outer drum, a drive motor, an air heater, a position detecting probe and a control system, multiple inner drying drums for containing tea are arranged in the outer drum, the inner drying drum can revolute around the central axis of theouter drum and rotate around the own central axis, and the air heater has a hot air mode and a natural air mode. When the inner drying drums revolute, circulating flow of hot air or natural air is formed in an inner cavity of the outer drum, uniform temperature field can be formed in the inner cavity of the outer drum, when the inner drying drums rotate, tea contained in the inner drying drums isdriven to turn over, tea is stir-fried and exchanges heat uniformly with hot air or natural air, and the heat exchange efficiency can be improved, so that drying or cooling can be realized. Besides,collision and slight extrusion produced drum tea stir-frying through rotation of the inner drying drums can increase the yield of the tea.

Description

technical field [0001] The invention relates to the technical field of tea drying equipment, in particular to an automatic tea drying and cooling integrated equipment. 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, an...

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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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