Tea polyphenol blanking opening

Abstract

The invention provides a tea polyphenol blanking opening. The tea polyphenol blanking opening comprises a cyclone cylinder used for separating tea polyphenols, wherein an unloading valve is arranged at the lower end of the cyclone cylinder, and an air pipe for blowing air to the unloading valve is arranged in the cyclone cylinder. According to the scheme, by blowing air flows into the cyclone cylinder, the temperature of tea polysaccharides can be effectively reduced, thus melting and coking of the tea polysaccharides are avoided, and when the powdery tea polyphenols pile up in the unloading valve to form a bridge, the powdery tea polyphenols can be blown away by the air pipe so that it is guaranteed that the tea polysaccharides can smoothly pass the unloading valve.

Description

technical field [0001] The invention relates to the field of preparation of tea polysaccharides, in particular to a tea polyphenol feeding port. Background technique [0002] The preparation and extraction method of tea polyphenols is mainly to pulverize tea leaves and undergo processes such as soaking and heating to form a solid-gas mixture containing tea polyphenols, and then separate the tea polyphenols in the solid-gas mixture to obtain powdered tea polyphenols. [0003] In the prior art, it is generally necessary to pass the solid-gas mixture with a temperature of 100-120°C into the cyclone, and the powdered tea polyphenols will settle along the wall of the cyclone to the discharge port, and the top of the cyclone is provided with a The suction pipe that extracts water vapor from the cyclone is powered by a fixed-speed air pump, and the separated water vapor is discharged into the atmosphere. Powdered tea polyphenols contain some tea polysaccharides, and the temperatur...

AI Technical Summary

Problems solved by technology

Powdered tea polyphenols contain some tea polysaccharides, and the temperature will reach 110-120°C when they pass through the feeding port. However, this temperature will melt and coke the sugar in the tea polysaccharides, which will stick to the valve of the feeding port and block the feeding. mouth

At the same time, powdered tea polysaccharides are easy to accumulate at the valve and cause bridging, which seriously affects the smoothness of feeding.

And in the prior art, the valve at the feeding port is generally a gate valve. When the melted and solidified sugar gathers at the valve core, the gate valve will not close tightly, resulting in material leakage, wasting tea polysaccharide and polluting the workshop environment.

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