Impurity removal device for tea processing

The electrostatic impurity removal device uses an electrostatic generator to electrify the impurity removal rollers, combined with conductive and magnetic plates, which solves the problems of low efficiency and high cost of manual sorting in tea processing, realizes automated impurity removal, and improves the appearance quality of tea.

CN224157019UActive Publication Date: 2026-04-24YIMEIYUAN (FUJIAN) AGRICULTURAL DEVELOPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YIMEIYUAN (FUJIAN) AGRICULTURAL DEVELOPMENT CO LTD
Filing Date
2025-02-28
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

In current tea processing, the removal of hair and impurities relies on manual sorting, which is inefficient and costly, and makes it difficult to guarantee the appearance quality of the tea.

Method used

An electrostatic impurity removal device is used, which uses an electrostatic generator to electrify the impurity removal rollers. The difference in conductivity of tea leaves is used to separate them from light impurities. Combined with conductive plates and magnetic plates, automatic impurity removal is achieved.

Benefits of technology

It achieves automated separation of tea leaves from light impurities, improves impurity removal efficiency, reduces labor costs, and ensures the appearance quality of tea leaves.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224157019U_ABST
    Figure CN224157019U_ABST
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Abstract

The impurity removing device for tea processing comprises a feeding hopper, an impurity removing roller, an electrostatic generator, a guide plate and a material receiving box, the impurity removing roller is connected with the electrostatic generator, the electrostatic generator generates an electrostatic field through a high-voltage power supply, and when the electrostatic field is connected to the impurity removing roller, electric charges can be transmitted to the surface of the impurity removing roller to enable the impurity removing roller to be electrified. A discharging port of the feeding hopper is aligned with the impurity removing roller, the guide plate is obliquely arranged and installed under the impurity removing roller, the receiving box is used for receiving tea falling from the guide plate, and the driving mechanism is connected with the impurity removing roller and drives the impurity removing roller to rotate. When tea leaves in the feeding hopper fall on the surface of the impurity removal roller, the tea leaves can directly fall off from the impurity removal roller due to the fact that the tea leaves contain certain moisture, are high in electrical conductivity and heavy, and static electricity is difficult to adsorb. And other light impurities such as dust and hair can be adhered to the surface of the impurity removal roller, so that electrostatic impurity removal is realized.
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Description

Technical Field

[0001] This utility model relates to the field of tea processing, and in particular to a tea processing impurity removal device. Background Technology

[0002] During the picking, transportation, and processing of tea, workers' hair and airborne dust particles may fall onto the tea products. The presence of hair and impurities will affect the appearance quality of the tea. In order to improve the appearance quality of the tea, it is necessary to remove hair and impurities. The traditional practice of manufacturers is to hire a large number of people to pick the tea. However, due to the varying degrees of diligence and responsibility of the workers, the removal of impurities from the tea after manual picking is not ideal, and the labor required is large, resulting in high costs for manufacturers. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] In order to solve the above-mentioned problems of the prior art, the present invention provides a tea processing impurity removal device.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0007] A tea processing impurity removal device includes a feed hopper, impurity removal rollers, an electrostatic generator, a guide plate, and a receiving box;

[0008] The impurity removal roller is connected to the electrostatic generator, which generates an electrostatic field through a high-voltage power supply. When connected to the impurity removal roller, the charge is transferred to the surface of the impurity removal roller, making it charged.

[0009] The discharge port of the feed hopper is aligned with the impurity removal roller;

[0010] The guide plate is inclined and installed directly below the impurity removal roller;

[0011] The receiving box is used to receive tea leaves falling from the guide plate;

[0012] The drive mechanism is connected to the impurity removal roller and drives the impurity removal roller to rotate.

[0013] Preferably, the drive mechanism includes a drive motor, a drive wheel, a driven wheel, a rotating shaft, a support frame, and a transmission belt;

[0014] The two ends of the impurity removal roller are provided with rotating shafts facing each other;

[0015] The rotating shaft is mounted inside the support frame via a bearing housing;

[0016] The drive wheel is mounted on the rotating shaft;

[0017] The driven wheel is connected to the drive motor;

[0018] The drive belt connects the driving pulley and the driven pulley.

[0019] Preferably, the driving wheel, driven wheel, and support frame are all made of insulating material.

[0020] Preferably, the impurity removal roller is connected to the high-voltage end of the electrostatic generator via a slip ring.

[0021] Preferably, a quantitative feeding mechanism is provided at the discharge port at the bottom of the feeding hopper, the quantitative feeding mechanism including a feeding motor, a long shaft and a feeding plate;

[0022] The output end of the feeding motor is fixedly mounted with the long shaft, which extends into the discharge port of the feeding hopper. Multiple feeding plates arranged in a ring at equal intervals are fixedly mounted on the long shaft.

[0023] Preferably, a dust collection hopper with an opening at the top is provided below the impurity removal roller at a location away from the feed hopper.

[0024] Preferably, an electromagnet is installed on the back of the guide plate, and the surface of the guide plate becomes magnetic after the electromagnet is energized.

[0025] (III) Beneficial Effects

[0026] The beneficial effects of this utility model are as follows: By adopting the above technical solution, the impurity removal roller is connected to the high voltage end of the electrostatic generator, so that the surface of the impurity removal roller is statically charged. When the tea leaves in the feed hopper fall onto the surface of the impurity removal roller, because the tea leaves contain a certain amount of moisture and have high conductivity, they are not easily charged. Moreover, the tea leaves are relatively heavy and the static electricity is difficult to attract them, so they will fall directly off the impurity removal roller. Other light impurities such as dust and hair will be adhered to the surface of the impurity removal roller, thereby achieving electrostatic impurity removal. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of a tea processing impurity removal device.

[0028] Figure 2 This is a side view schematic diagram of a tea processing impurity removal device.

[0029] Figure 3 This is a schematic diagram of the drive mechanism.

[0030] [Explanation of Labels in the Attached Image]

[0031] 1. Impurity removal rollers;

[0032] 2. Feed hopper;

[0033] 3. Guide plate;

[0034] 4. Receiving box;

[0035] 5. Dust bucket;

[0036] 6. Quantitative feeding mechanism;

[0037] 7. Electromagnet;

[0038] 8. Drive mechanism;

[0039] 81. Support frame; 82. Driven pulley; 83. Transmission belt; 84. Drive pulley; 85. Drive motor. Detailed Implementation

[0040] To better explain and facilitate understanding of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0041] Please refer to Figures 1 to 3 This utility model provides a tea processing impurity removal device, including a feeding hopper 2, an impurity removal roller 1, an electrostatic generator, a guide plate 3, and a receiving box 4;

[0042] The impurity removal roller 1 is connected to the electrostatic generator. The electrostatic generator generates an electrostatic field through a high-voltage power supply. When connected to the impurity removal roller 1, the charge is transferred to the surface of the impurity removal roller 1, making it charged.

[0043] The discharge port of the feed hopper 2 is aligned with the impurity removal roller 1;

[0044] The guide plate 3 is inclined and installed directly below the impurity removal roller 1;

[0045] The receiving box 4 is used to receive tea leaves falling from the guide plate 3;

[0046] The drive mechanism 8 is connected to the impurity removal roller 1 and drives the impurity removal roller 1 to rotate;

[0047] In use, the impurity removal roller 1 is connected to the high-voltage end of the electrostatic generator, so that the surface of the impurity removal roller 1 is statically charged. When the tea leaves in the feed hopper 2 fall onto the surface of the impurity removal roller 1, because the tea leaves contain a certain amount of moisture and have high conductivity, they are not easily charged. Also, the tea leaves are relatively heavy and the static electricity is difficult to attract them, so they will fall directly off the impurity removal roller 1. Other light impurities such as dust and hair will be adhered to the surface of the impurity removal roller 1, thereby achieving electrostatic impurity removal.

[0048] In this embodiment, the drive mechanism 8 includes a drive motor 85, a drive wheel 84, a driven wheel 82, a rotating shaft, a support frame 81, and a transmission belt 83;

[0049] The two ends of the impurity removal roller 1 are provided with rotating shafts facing each other;

[0050] The rotating shaft is mounted inside the support frame 81 via a bearing housing;

[0051] The drive wheel 84 is mounted on the rotating shaft;

[0052] The driven wheel 82 is connected to the drive motor 85;

[0053] The transmission belt 83 connects the driving pulley 84 and the driven pulley 82;

[0054] The drive motor 85 drives the impurity removal roller 1 to rotate through the cooperation of the drive wheel 84, the driven wheel 82 and the transmission belt 83.

[0055] In this embodiment, the driving wheel 84, the driven wheel 82, and the support frame 81 are all made of insulating material.

[0056] In this embodiment, the impurity removal roller 1 is connected to the high-voltage end of the electrostatic generator via a slip ring, which prevents the wire from getting tangled or broken due to rotation.

[0057] In this embodiment, a quantitative feeding mechanism 6 is provided at the discharge port at the bottom of the feeding hopper 2. The quantitative feeding mechanism 6 includes a feeding motor, a long shaft, and a feeding plate.

[0058] The output end of the feeding motor is fixedly installed with the long shaft, which extends into the discharge port of the feeding hopper 2. Multiple feeding plates arranged in a ring at equal intervals are fixedly installed on the long shaft.

[0059] The long shaft is driven to rotate by the feeding motor, so that the tea leaves between the adjacent feeding plates fall onto the impurity removal roller 1, thereby achieving quantitative feeding and avoiding the accumulation of a large amount of tea leaves on the surface of the impurity removal roller 1 in a short time, which would affect the impurity removal effect of the tea leaves.

[0060] In this embodiment, a dust collection hopper 5 with an opening at the top is provided below the impurity removal roller 1, away from the feed hopper 2. The dust collection hopper 5 is used to collect impurities adsorbed on the surface of the impurity removal roller 1.

[0061] In this embodiment, an electromagnet 7 is installed on the back of the guide plate 3. When the electromagnet 7 is energized, the surface of the guide plate 3 becomes magnetic, and the magnetic guide plate 3 can sieve out metal impurities in the tea leaves.

[0062] The working principle of this utility model is as follows:

[0063] The impurity removal roller 1 is connected to the high-voltage end of the electrostatic generator, so that the surface of the impurity removal roller 1 is statically charged. When the tea leaves in the feed hopper 2 fall onto the surface of the impurity removal roller 1, because the tea leaves contain a certain amount of moisture and have high conductivity, they are not easily charged. Also, the tea leaves are relatively heavy and the static electricity is difficult to attract them, so they will fall directly off the impurity removal roller 1. Other light impurities such as dust and hair will be adhered to the surface of the impurity removal roller 1, thereby achieving electrostatic impurity removal.

[0064] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0065] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

[0066] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A tea processing impurity removal device, characterized in that, Includes a feed hopper, impurity removal rollers, an electrostatic generator, guide plates, and a receiving box; The impurity removal roller is connected to the electrostatic generator, which generates an electrostatic field through a high-voltage power supply. When connected to the impurity removal roller, the charge is transferred to the surface of the impurity removal roller, making it charged. The discharge port of the feed hopper is aligned with the impurity removal roller; The guide plate is inclined and installed directly below the impurity removal roller; The receiving box is used to receive tea leaves falling from the guide plate; The drive mechanism is connected to the impurity removal roller and drives the impurity removal roller to rotate; A quantitative feeding mechanism is provided at the discharge port at the bottom of the feeding hopper. The quantitative feeding mechanism includes a feeding motor, a long shaft, and a feeding plate. The output end of the feeding motor is fixedly mounted with the long shaft, which extends into the discharge port of the feeding hopper. Multiple feeding plates arranged in a ring at equal intervals are fixedly mounted on the long shaft. An electromagnet is installed on the back of the guide plate, and the surface of the guide plate becomes magnetic when the electromagnet is energized.

2. The tea processing impurity removal device according to claim 1, characterized in that, The drive mechanism includes a drive motor, a drive wheel, a driven wheel, a rotating shaft, a support frame, and a transmission belt; The two ends of the impurity removal roller are provided with rotating shafts facing each other; The rotating shaft is mounted inside the support frame via a bearing housing; The drive wheel is mounted on the rotating shaft; The driven wheel is connected to the drive motor; The drive belt connects the driving pulley and the driven pulley.

3. The tea processing impurity removal device according to claim 2, characterized in that, The driving wheel, driven wheel, and support frame are all made of insulating material.

4. The tea processing impurity removal device according to claim 1, characterized in that, The impurity removal roller is connected to the high-voltage end of the electrostatic generator via a slip ring.

5. The tea processing impurity removal device according to claim 1, characterized in that, A dust collection hopper with an opening at the top is provided below the impurity removal roller, away from the feed hopper.