Tea winnowing machine

Abstract

The invention discloses a tea winnowing machine. The tea winnowing machine comprises a winnowing chamber and a fan; a feeding opening and a returning opening are arranged in the top part of the winnowing chamber and are communicated with each other through a screening device, wherein the screening device is equipped with an oscillator; the left side of the winnowing chamber is connected with the fan through an S-shaped pipeline; the mounting position of an air opening of the S-shaped pipeline is lower than that of the screening device; a dust discharging opening is arranged in the right side of the winnowing chamber and is connected with a dust recovering bag; a plurality of tea discharging buckets are arranged at the bottom part of the winnowing chamber; tea discharging openings are formed in the bottom parts of the tea discharging buckets; vortex type rotating plates which are vertically positioned in the centers of the tea buckets are fixedly mounted above the tea discharging openings; an observing window is mounted in the front side of the winnowing chamber. The tea winnowing machine is simple in structure and easy to be implemented; the air speed is uniform and stable; the winnowing quality is high; the waste and pollution are avoided; the tea winnowing machine is specially applied to tea winnowing.

Description

technical field [0001] The invention relates to a tea production equipment, in particular to a tea winnowing machine. Background technique [0002] Tea is a traditional drink in China. It can not only preserve health but also prevent diseases, and is deeply loved by consumers. In the tea production process, the screening process is the subsequent process of tea processing, and most of them use wind separators for tea screening. The principle of the tea winnowing machine is to use the aerodynamic characteristics of tea particles. Under the action of wind, the characteristics of the drift distance are different. According to the position of the drift of the tea, the quality of the tea is distinguished. It is the key equipment in the commercial tea processing equipment. The air-selected tea requires that the aerodynamic characteristic parameters and drift coefficient of the tea flowing out from the same tea outlet of the air-selected machine are within the specified range. If ...

AI Technical Summary

Problems solved by technology

This invention has a simple structure, although it realizes the effect of separating tea leaves from sand and grading tea leaves, it has the following defects: First, the forward air flow velocity in the body is basically in a stable state, but at the edge of the body, due to the resistance of the flow velocity, the flow velocity A large vortex of tea leaves is formed near the tea outlet and on the upper part of the body, and the tea leaves are rerolled into other tea outlets or re-selected by air, which affects the quality of air selection and wastes energy; second, the wind in the body directly comes from the cyclone , the wind speed is not uniform and stable, the wind speed distribution in the body changes from large to small, relatively more tea leaves fall near the tea outlet of the cyclone, which affects the quality of tea winnowing; in addition, the dust outlet is not equipped with a filter, and the lighter The tea is mixed with the dust and discharged, resulting in a waste of resources

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