CN111974095A - Tea polyphenol feed opening - Google Patents

Abstract

The invention provides a tea polyphenol feeding port, which comprises a cyclone cylinder for separating tea polyphenols, a discharge valve is arranged at the lower end of the cyclone cylinder, and an air pipe for blowing air to the discharge valve is arranged in the cyclone cylinder. The above scheme can effectively reduce the temperature of tea polysaccharides by blowing air flow into the cyclone to prevent them from melting and coking, and when powdered tea polyphenols are stacked and bridged at the discharge valve, they can be blown away through the trachea to ensure that the tea polysaccharides can be blown away. Smooth through the dump valve.

Description

Tea polyphenol feeding port

technical field

The invention relates to the field of preparation of tea polysaccharides, in particular to a tea polyphenol feeding port.

Background technique

The preparation and extraction method of tea polyphenols is mainly to pulverize the tea leaves through 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.

In the prior art, it is generally necessary to pass a solid-gas mixture with a temperature of 100-120°C into the cyclone, and the powdered tea polyphenols will settle down to the discharge port along the wall of the cyclone. The suction pipe that extracts water vapor from the cyclone is powered by a constant speed air pump, and the separated water vapor is discharged into the atmosphere. 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 cause the sugar in the tea polysaccharides to melt and coke, which will adhere to the valve of the feeding port and block the feeding. mouth. At the same time, the powdered tea polysaccharide is easy to accumulate at the valve to cause bridging phenomenon, which seriously affects the smoothness of feeding. In addition, in the prior art, the valve at the discharge port is generally a gate valve. When the melted and solidified sugar accumulates at the valve core, the gate valve will not be closed tightly, causing material leakage, wasting tea polysaccharide and polluting the workshop environment.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a tea polyphenol feeding port, which ensures that the tea polysaccharide can smoothly pass through the feeding port in powder form.

In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a tea polyphenol discharge port, comprising a cyclone for separating tea polyphenols, a discharge valve is arranged at the lower end of the cyclone, and a directional discharge valve is arranged in the cyclone. Air pipe for blowing air at the discharge valve.

The above scheme can effectively reduce the temperature of tea polysaccharides by blowing air flow into the cyclone to prevent them from melting and coking, and when powdered tea polyphenols build up bridges at the discharge valve, they can be blown away through the trachea to ensure that the tea polysaccharides can be blown away. Smooth through the dump valve.

Description of drawings

Fig. 1, 2 are structural representations of the present invention;

3 is a sectional view of the present invention;

Figure 4 is a schematic diagram of the structure of the hoop.

Detailed ways

A tea polyphenol feeding port, comprising a cyclone 10 for separating tea polyphenols, a discharge valve 20 is arranged at the lower end of the cyclone 10, and a trachea for blowing air to the discharge valve 20 is arranged in the cyclone 10 30.

The above-mentioned scheme can also be used for the feeding port of other sugar preparations. By blowing the air flow into the cyclone 10, the temperature of the tea polysaccharide can be effectively reduced to avoid melting and coking, and the air pipe blowing to the unloading valve 20 can effectively reduce the temperature of the tea polysaccharide. The blocking material of the bridge is blown away, so that the tea polyphenols can pass through the discharge valve 20 smoothly.

The air pipe 30 passes through the air pipe seat 31 and is fixedly connected with it. The air pipe seat 31 and the side pipe 11 on the cyclone barrel 10 that communicate with the inside and outside of the cyclone barrel 10 constitute a detachable fit. The trachea 30 outside the trachea seat 31 is connected to the air supply device, so that the trachea 30 and the trachea seat 31 are formed into a whole, which is convenient for disassembly and maintenance.

A hoop 40 is fastened at the flange of the connecting end of the trachea seat 31 and the side pipe 11 . The hoop 40 can quickly disassemble and assemble the two tubular parts.

The hugging hoop 40 is formed by hinged connection of two semicircular rings, the open end of the hoop 40 is provided with a locking lug 41 for the bolt 42 to be locked and connected, and the inner ring of the hoop 40 is provided with an annular groove 43 for accommodating a flange. In this way, the annular groove 43 can limit the position of the flange in its axial direction, and it is extremely difficult for the connecting parts to fall off after the bolts 42 are locked.

The lower section of the cyclone tube 10 is in the shape of a trumpet with a large upper and a lower small. The powdered tea polyphenols are gathered in the lower section of the cyclone 10 to facilitate collection.

There are three air outlets at the bifurcation of the air pipe 30 in the cyclone cylinder 10 , at least one of which blows air to the closing part of the lower section of the cyclone cylinder 10 , and the other air outlets blow air to the discharge valve 20 . Multiple air outlets can obtain a larger purging area, and can purify the blocked materials everywhere in the cyclone 10 .

The discharge valve 20 is a star discharge valve. Ordinary gate valve is very prone to blockage of tea polysaccharide and sticking to it, so a star-shaped discharge valve is set up.

Claims (7)

1. a tea polyphenol feeding port, comprising a cyclone (10) for separating tea polyphenols, the cyclone (10) lower end is provided with a discharge valve (20), it is characterized in that: the cyclone (10) ) is provided with an air pipe (30) for blowing air to the discharge valve (20). 2. The tea polyphenol feeding port according to claim 1, characterized in that: the trachea (30) passes through the trachea seat (31) and is fixedly connected with it, and the trachea seat (31) is on the cyclone (10) The provided side pipes (11) communicating with the inside and outside of the cyclone (10) constitute a detachable fit. 3 . The tea polyphenol feeding port according to claim 2 , wherein a hoop ( 40 ) is fastened at the flange of the connecting end of the trachea seat ( 31 ) and the side pipe ( 11 ). 4 . 4. The tea polyphenol feeding port according to claim 3, characterized in that: the hoop (40) is hinged by two semicircular rings, and the open end of the hoop (40) is provided with a supply bolt (42). ) to lock the connected locking lugs (41), and the inner ring of the hoop (40) is provided with an annular groove (43) for accommodating the flange. 5. The tea polyphenol feeding port according to claim 1, characterized in that: the lower section of the cyclone (10) is in the shape of a trumpet with a large upper and a lower small. 6. The tea polyphenol feeding port according to claim 5 is characterized in that: three air outlets at the bifurcation of the trachea (30) in the cyclone (10), wherein at least one is directed to the lower section of the cyclone (10). The air outlet for blowing air at the closing mouth, and the other air outlets blow air to the discharge valve (20). 7 . The tea polyphenol feeding port according to claim 1 , wherein the discharge valve ( 20 ) is a star discharge valve. 8 .

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