CN207951947U - A kind of tea screening classifying equipoment - Google Patents

Abstract

The utility model relates to tea screening and grading equipment, which comprises a box body, a feed hopper and a discharge port arranged on the box body, two or more screens are arranged obliquely in the box, and the lower ends of each screen are A discharge port is provided, and a vibrating device is arranged on the box to drive the whole box to vibrate. The utility model is equipped with multi-layer screens with different apertures inside the screening and grading equipment to realize the fine grading of tea leaves and meet the needs of different tea products, and the screening is completed at one time with high efficiency; it is installed on the top of the screening box A vibrating motor drives the box to vibrate, and uses the spring base to support the box. The spring base can improve the freedom of vibration of the box, assist the box to vibrate, reduce the number of driving motors, reduce the cost of equipment, and reduce the energy consumption of the machine .

Description

A kind of tea screening and grading equipment

technical field

The utility model relates to tea making equipment, in particular to a tea screening and grading equipment.

Background technique

After primary processing, the tea is called raw tea, and its intrinsic quality characteristics have been basically formed during the primary processing. However, due to the scattered production of tea leaves, different picking ages and tenderness, and different primary processing techniques, the quality specifications of raw tea are complicated. In order to increase the commercial value of tea and standardize product quality, it must be refined and processed to meet the needs of domestic and foreign markets. The purpose of tea sieving operation is to separate the length and thickness of raw tea, and sieve off the tea dust, so that the shape is neat and meets the specifications; at the same time, the thick and large tea is sieved, which needs to be shredded and then sieved again. Therefore, screening machinery is the most basic machinery in tea refining and processing, and its screening effect not only has a great impact on product value, but also directly has an important impact on the efficiency of the next step of operation.

At present, flat circular sieves are generally used for primary screening of tea in the tea processing industry. Only one standard can be used to screen tea raw materials at a time, which results in uneven thickness of tea raw materials and relatively high impurities after one screening. In many cases, multiple screenings are required to achieve the classification of tea leaves, and the efficiency is low. Moreover, in the existing mechanical vibrating screen, each screen needs to be matched with a vibrating device.

Contents of the invention

The purpose of the utility model is to provide a tea screening and grading equipment to solve the problems of low screening efficiency, large energy consumption and high cost of the existing screening equipment.

In order to achieve the above object, the technical scheme that the utility model takes is:

A tea screening and grading equipment, comprising a box body, a feed hopper and a discharge port arranged on the box body, characterized in that two or more screens are arranged obliquely in the box, and the lower ends of each screen are A discharge port is provided, and a vibrating device is arranged on the box to drive the whole box to vibrate.

The sieves are layered up and down, and the apertures of the sieves decrease sequentially from top to bottom.

Wherein, a guide baffle plate opposite to the inclination direction of the screen is arranged between the upper and lower adjacent screens to make the tea leaves fall to the top of the lower screen.

The surface of the guide baffle is smooth and flat to facilitate the sliding of tea leaves.

A 10-15cm wide opening is reserved below the guide baffle.

The bottom of the box is provided with a spring base to support the whole box and assist the vibration of the box.

Fans with adjustable air volume are arranged above the sieve to prevent the fine tea from falling to the outlet and cannot be sifted out in time.

The feed hopper is provided with a feed control valve to control the tea flow.

The vibrating device is a piston type reciprocating motor.

Advantages and beneficial effects of the utility model:

3. The utility model is equipped with multi-layer screens with different apertures inside the screening and grading equipment to realize the fine grading of tea leaves and meet the needs of different tea products, and the screening is completed at one time with high efficiency; in the screening box A vibrating motor is installed on the top to drive the cabinet to vibrate, and the spring base is used to support the cabinet. The spring base can improve the freedom of vibration of the cabinet, assist the vibration of the cabinet, reduce the number of driving motors, reduce equipment costs, and reduce the cost of the machine. energy consumption.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Description of the serial numbers of the accompanying drawings: 1. Spring base, 2. Box body, 3. Secondary screen, 4. Guide baffle, 5. Primary screen, 6. Feed control valve, 7. Feed hopper, 8. Vibration device, 9, fan, 10, primary discharge port, 11, secondary discharge port, 12, tertiary discharge port.

Detailed ways

The technical solutions of the present utility model will be further specifically described below through the embodiments and in conjunction with the accompanying drawings.

As shown in Figure 1, the utility model comprises a box body 2, the top is provided with a piston type reciprocating motor 8 that drives the vibration of the whole device, the box body 2 is supported by a spring base and assists the box body to vibrate. The top of the box body 2 is provided with a tea feed hopper 7, and the bottom is provided with a three-stage outlet 12, and the feed hopper is provided with a feed control valve to regulate the tea flow.

The inside of the box body 2 is obliquely provided with a primary screen 5 and a secondary screen 3, wherein the mesh of the primary screen is larger than the mesh of the secondary screen, and the lower ends of the primary screen 5 and the secondary screen 3 are respectively A primary discharge port 10 and a secondary discharge port 11 are connected. Between the primary screen 5 and the secondary screen 3, there is a tea guide baffle 4 opposite to the inclination direction of the screen. There is a 10cm or 15cm wide opening under the baffle 4. The surface of the baffle 4 is smooth and smooth to facilitate the tea leaves. It falls on the top of the secondary screen 3; fans 9 with adjustable air volume are arranged above the screens at all levels.

During work, the tea leaves are poured into the feed hopper 7, and the feed control valve 6 is adjusted to make the tea leaves fall slowly and not pile up on the primary screen 5. Under the vibration and gravity of the vibration motor 8, the tea leaves are relatively Coarse tea leaves roll down along the primary screen 5 to the primary outlet 10 for output, and finer tea leaves fall from the mesh to the guide baffle 4 and fall along the baffle 4 to the secondary screen 3 Similarly, the slightly thicker tea leaves are rolled along the secondary screen 3 and exported from the secondary outlet 11, and the finer tea leaves fall from the mesh to the bottom of the casing and are output from the third outlet 12. The fan 9 is used to assist tea sieving. When the fine tea leaves do not leak out from the mesh, the air volume of the fan 9 is adjusted so that the fine tea leaves will not directly roll to the outlet for output, but stay on the sieve to continue sieving.

It should be noted that when an element is considered to be “disposed” or “connected” to another element, it may be directly disposed or connected to another element or an intervening element may exist at the same time.

The utility model is not limited by the above-mentioned embodiments, and on the premise of not departing from the design idea of the utility model, various modifications and improvements made to the technical solution of the utility model shall fall into the protection scope of the utility model. The scope of protection requested by the utility model has been fully recorded in the claims.

Claims (9)

1. a kind of tea screening classifying equipoment, including babinet, the feed hopper and discharge port being arranged on babinet, which is characterized in that Described tilted two or more sieves of setting of babinet, each sieve lower end is respectively provided with discharge port, is arranged on the babinet and shakes Dynamic device drives entire babinet vibration.

2. tea screening classifying equipoment according to claim 1, it is characterised in that lower leaf is arranged on the sieve, from upper It is sequentially reduced to the aperture of lower screen cloth.

3. tea screening classifying equipoment according to claim 1 or 2, it is characterised in that set between upper and lower two adjacent screen mesh It is equipped with the guide baffle plate opposite with screen slope direction.

4. tea screening classifying equipoment according to claim 3, it is characterised in that the guide baffle plate surface is smooth.

5. tea screening classifying equipoment according to claim 3, it is characterised in that there are 10- below the guide baffle plate The opening of 15cm wide.

6. tea screening classifying equipoment according to claim 1, it is characterised in that it is whole that the bottom of box is provided with support A babinet and the spring pedestal of auxiliary chamber vibration.

7. tea screening classifying equipoment according to claim 1, it is characterised in that being equipped with air quantity above the sieve can The fan of tune.

8. tea screening classifying equipoment according to claim 1, it is characterised in that be provided with control tea on the feed hopper The inlet control valve of leaf flow.

9. tea screening classifying equipoment according to claim 1, it is characterised in that the vibrating device is that piston type is reciprocal Motor.