A multi-stage impurity removal and electrostatic separation of tea stem and leaf separation system

Abstract

The utility model relates to the field of tea processing discloses a multistage edulcoration and electrostatic selection's tea stem and leaf separation system, including the feeding stand, the bottom of feeding stand is provided with the preliminary processing mechanism, the bottom of preliminary processing mechanism is provided with the separation processing mechanism, the bottom of separation processing mechanism is provided with the electrostatic screening mechanism, the preliminary processing mechanism includes the sundry processing bin, the outer wall of sundry processing bin sets up in the bottom of feeding stand, the outer wall top of sundry processing bin is connected with the threaded column in the screw thread, the top fixed connection of feeding stand has the buffer assembly. Through the high -voltage static electricity negative pole of electrode cylinder and the distribution board of grounding positive pole form stable electric field gap after the roller motor is connected, let the selected raw material in the electric field realizes accurate separation according to the dielectric characteristic difference, improves the continuity of raw material conveying and the accuracy of separation screening, and further improves the efficiency and quality of separation.

Description

Technical Field

[0001] This invention relates to the field of tea processing technology, specifically to a multi-stage impurity removal and electrostatic separation system for tea stems and leaves. Background Technology

[0002] In the process of processing tencha, the mixing of stems and leaves, as well as the dust and fine impurities contained in the raw materials, are key issues affecting the quality of tencha. Traditional tencha stem and leaf separation mostly relies on manual screening or single mechanical sieving, which not only has the problems of low separation efficiency and high manual labor intensity, but also makes it difficult to accurately separate stems and leaves with similar shapes, and cannot completely remove fine impurities. At the same time, with the increasing demands of consumers for the quality of tencha and the large-scale development of tea processing, traditional processes can no longer meet the needs of efficient, precise and automated production.

[0003] Traditional separation methods rely heavily on manual screening or single mechanical sieving, which is difficult to adapt to the needs of large-scale production. They can only achieve rough separation of stems and leaves, and cannot accurately distinguish stems and leaves with similar shapes, resulting in insufficient separation precision. Traditional technologies lack a systematic multi-stage impurity removal design, and cannot thoroughly remove dust and fine debris impurities mixed in the raw materials, which are easily left in the finished product and affect the quality of the tea. Existing technologies do not incorporate electrostatic separation methods for precise separation, and cannot achieve deep separation based on the differences in physical characteristics between stems and leaves. Moreover, each processing step is mostly independent and does not form a coherent automated processing flow, which limits the overall processing efficiency and makes it difficult to meet the modern tea industry's demand for high-quality, high-efficiency, and low-loss production. It also cannot guarantee the stability and consistency of the finished product quality. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a multi-stage impurity removal and electrostatic separation system for tea stems and leaves, which solves the problems of low impurity removal accuracy and high separation time in traditional methods.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: a multi-stage impurity removal and electrostatic separation system for tea stems and leaves, including a feeding rack, a preliminary processing mechanism at the bottom of the feeding rack, a separation processing mechanism at the bottom of the preliminary processing mechanism, and an electrostatic screening mechanism at the bottom of the separation processing mechanism. The preliminary processing mechanism includes a waste processing bin, the outer wall of which is located at the bottom of the feeding rack. A threaded post is threadedly connected to the upper part of the outer wall of the waste processing bin. A buffer assembly is fixedly connected to the top of the feeding rack. An inclined plate is provided on the top of the waste processing bin. A waste pipe is connected to the rear side of the waste processing bin. A processing box is provided inside the waste processing bin. A grinding assembly is provided on the top of the processing box. A trough is opened on the front side of the bottom of the processing box. A filter assembly is fixedly connected to the bottom of the processing box.

[0006] Preferably, the separation and processing mechanism includes an installation chamber, the outer wall of which is located at the bottom of the preliminary processing mechanism, a separation plate fixedly connected to the inner wall of the installation chamber, a sliding frame slidably connected to the top of the inner wall of the installation chamber, a plurality of baffle plates fixedly connected to the inner wall of the sliding frame, a discharge port on the top right side of the separation plate, a second processing component on the left side of the separation plate, a storage component on the rear side of the installation chamber, an air inlet on the left side of the installation chamber, and a material distribution component fixedly connected to the left side of the air inlet.

[0007] Preferably, the electrostatic screening mechanism includes a support base, the outer wall of which is located outside the installation chamber, a fixing frame is provided on the outer wall of the support base, a connecting plate is provided on the outer wall of the fixing frame, a transmission component is provided on the inner wall of the connecting plate, a support plate is fixedly connected to the right outer wall of the connecting plate, a second motor is provided on the front side of the connecting plate, a transmission belt is rotatably connected to the output end of the second motor, a rotating shaft is rotatably connected to the inner wall of the transmission belt, and a roller ionization is provided on the outer wall of the rotating shaft.

[0008] Preferably, the buffer assembly includes a cross-shaped separation bar, the outer wall of which is rotatably connected to the inner wall of the feed rack, and a buffer block is fixedly connected to the top outer wall of the feed rack.

[0009] Preferably, the grinding assembly includes a motor, the outer wall of which is fixedly connected to the top of the processing box, and a grinding plate is fixedly connected to the output end of the motor.

[0010] Preferably, the repetitive assembly includes a gear, the outer wall of which is disposed at the output end of the motor, and a movable plate is slidably connected to the outer wall of the gear.

[0011] Preferably, the second processing component includes a second discharge port, which is located in the middle of the separation plate, and a second baffle plate is fixedly connected to the left side of the outer wall of the sliding frame.

[0012] Preferably, the storage component includes a processing port, which is located on the rear side of the installation compartment, and a rotating door is rotatably connected to the outer wall of the processing port.

[0013] Preferably, the material distribution assembly includes a protective cover, the outer wall of which is located on the left side of the installation chamber, and a fan is provided on the inner wall of the protective cover.

[0014] Preferably, the transmission component includes a rotating column, the outer wall of which is rotatably connected to the inner wall of the connecting plate, and a conveyor belt is rotatably connected to the outer wall of the rotating column. The ionization component includes a roller motor, the outer wall of which is fixedly connected to the outside of the rotating shaft, an electrode barrel is provided on the outer wall of the roller motor, and a distribution plate is provided on the outer wall of the ionization component.

[0015] This invention provides a multi-stage impurity removal and electrostatic separation system for tea stems and leaves. It has the following beneficial effects: 1. This invention integrates a support base and a fixing frame on the outer wall of the installation chamber to achieve a stable connection between the connecting plate and various functional components. This ensures that the raw materials, after being screened by the separation and processing mechanism, can be accurately transported to the subsequent processing stage by the conveyor belt driven by the rotating column. Furthermore, relying on the motor fixed on the support plate, the conveyor belt and rotating shaft are synchronously driven, driving the ionization component to operate efficiently. After the drum motor is powered on, the electrode cylinder is connected to the high-voltage electrostatic negative pole and the grounded distribution plate is connected to the positive pole to form a stable electric field gap. This allows the raw materials to be selected to be accurately separated in the electric field based on the difference in dielectric properties, improving the continuity of raw material transportation and the accuracy of separation and screening, thereby improving the efficiency and quality of tea stem and leaf separation.

[0016] 2. This invention utilizes the characteristic that the raw materials entering the installation chamber are blown away at different distances due to the weight difference of raw materials with different moisture contents under the action of the fan. It also uses the baffle plate and separation plate on the sliding frame to achieve precise screening. Then, the raw materials with different moisture contents are collected separately through the discharge port 1 and discharge port 2 with different openings. This meets the needs of subsequent processing scenarios with different requirements for the moisture content of raw materials, and improves the utilization rate of raw materials and the stability of product quality.

[0017] 3. This invention uses a buffer block at the top of the feeding rack to break up the raw materials, and the cross-shaped separation strips transport them in batches to avoid accumulation. The inclined plate in the waste treatment chamber precisely guides the raw materials to the treatment box. The motor drives the grinding plate to rotate clockwise to achieve uniform grinding. After grinding, the raw materials enter the filter assembly through the trough. The inclined screen on the inner wall of the separation layer can efficiently separate waste materials and discharge them through the waste pipe. At the same time, the threaded connection between the feeding rack and the waste treatment chamber is stable and reliable. The overall structure ensures continuous operation of raw materials from pretreatment, grinding to waste separation, reducing manual intervention and improving the utilization rate of raw materials. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the present invention; Figure 3 This is a schematic diagram of the present invention; Figure 4 This is a schematic diagram of the present invention; Figure 5 This is a schematic diagram of the present invention; Figure 6 This is a schematic diagram of the present invention; Figure 7 This is a schematic diagram of the present invention; Figure 8 This is a schematic diagram of the present invention; Figure 9 This is a schematic diagram of the present invention; Figure 10 This is a schematic diagram of the present invention.

[0019] Among them, 10. Feed rack; 201. Waste treatment bin; 202. Threaded column; 203. Buffer assembly; 2031. Cross separator bar; 2032. Buffer block; 204. Inclined plate; 205. Processing box; 206. Grinding assembly; 2061. Motor one; 2062. Grinding plate; 207. Waste pipe; 208. Filter assembly; 2081. Separation layer; 2082. Screen; 209. Slot; 30. Separation processing mechanism; 301. Installation bin; 302. Separation plate; 303. Sliding frame; 304. Barrier plate one; 305. Discharge port one; 306. Second processing assembly; 3061. 1. Discharge port 2; 3062. Barrier plate 2; 307. Storage assembly; 3071. Processing port; 3072. Rotating door; 308. Distributing assembly; 3081. Protective cover; 3082. Fan; 309. Air inlet; 40. Electrostatic screening mechanism; 401. Support base; 402. Fixing frame; 403. Connecting plate; 404. Transmission assembly; 4041. Rotating column; 4042. Conveyor belt; 405. Support plate; 406. Motor 2; 407. Conveyor belt; 408. Rotating shaft; 409. Ionization assembly; 4091. Drum motor; 4092. Electrode barrel; 4010. Distribution plate. Detailed Implementation

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see the appendix Figure 1 - Appendix Figure 10 This invention provides a multi-stage impurity removal and electrostatic separation system for tea stems and leaves, including a feeding rack 10, a preliminary processing mechanism at the bottom of the feeding rack 10, a separation processing mechanism at the bottom of the preliminary processing mechanism, and an electrostatic screening mechanism at the bottom of the separation processing mechanism. The preliminary processing mechanism includes a waste processing bin 201. The outer wall of the waste processing bin 201 is located at the bottom of the feed rack 10. A threaded hole is provided at the top of the waste processing bin 201. A connecting block is provided on the outside of the feed rack 10. A threaded post 202 is threadedly connected to the connecting block, and the threaded post 202 is threadedly connected to the threaded hole on the waste processing bin 201. This allows the waste processing bin 201 to be connected and fixed to the feed rack 10 through the threaded post 202.

[0022] A buffer assembly 203 is fixedly connected to the top of the feeding rack 10 to reduce the speed of material entering. The buffer assembly 203 includes a cross-shaped separating bar 2031, the outer wall of which is rotatably connected to the inner wall of the feeding rack 10. A buffer block 2032 is fixedly connected to the top outer wall of the feeding rack 10. An inclined plate 204 is provided on the top of the waste treatment bin 201. The inclined plate 204 is used to guide the waste to slide smoothly into the bin. A treatment box 205 is fixedly installed in the waste treatment bin 201. A grinding assembly 206 is provided on the top of the treatment box 205. A trough 209 is opened on the front side of the bottom of the treatment box 205. A filter assembly 208 is fixedly connected to the bottom of the treatment box 205. A waste pipe 207 is connected to the rear side of the waste treatment bin 201. Among them, the grinding component 206 is responsible for the initial grinding and crushing of the impurities entering the chamber. The trough 209 is designed to facilitate the smooth discharge of the ground raw materials. In order to further purify the impurities, a filter component 208 is also fixedly connected to the bottom of the treatment box 205. The filter component 208 can effectively intercept impurities and ensure that the discharged waste is discharged from the waste pipe 207. The rear side of the impurity treatment chamber 201 is connected to the outside through a waste pipe 207 to ensure that the processed waste can be discharged smoothly. Specifically, the grinding assembly 206 includes a motor 2061, the outer wall of which is fixedly connected to the top of the processing box 205, and a grinding plate 2062 is fixedly connected to the output end of the motor 2061. The filter assembly 208 includes a separation layer 2081, the outer wall of which is fixedly connected to the bottom of the processing box 205, and a screen 2082 is fixedly connected to the inner wall of the separation layer 2081. The outer wall of motor 2061 is fixed to the top of the processing box 205 to ensure its stability during operation. The output end of motor 2061 is fixedly connected to grinding plate 2062, so that the power of motor 2061 can be efficiently transmitted to grinding plate 2062, thereby achieving effective grinding of materials. The filter assembly 208 includes a separation layer 2081, wherein the outer wall of separation layer 2081 is fixed to the bottom of processing box 205 to ensure that it will not shift during filtration. The inner wall of separation layer 2081 is tightly connected to screen 2082, and the function of screen 2082 is to filter out leaf stems in the material.

[0023] The separation and processing mechanism 30 includes an installation chamber 301. The outer wall of the installation chamber 301 is located at the bottom of the preliminary processing mechanism 20. A separation plate 302 is fixedly connected to the inner wall of the installation chamber 301. A sliding frame 303 is slidably connected to the top of the inner wall of the installation chamber 301. Multiple baffle plates 304 are fixedly connected to the inner wall of the sliding frame 303. A discharge port 305 is opened on the top right side of the separation plate 302. A second processing component 306 is opened on the left side of the separation plate 302. A storage component 307 is opened on the rear side of the installation chamber 301. An air inlet 309 is opened on the left side of the installation chamber 301. A material distribution component 308 is fixedly connected to the left side of the air inlet 309. Specifically, the outer wall of the installation chamber 301 is located at the bottom of the preliminary processing mechanism 20. A separation plate 302 is fixedly connected to the inner wall of the installation chamber 301 for material separation. A sliding frame 303 is slidably connected to the top of the inner wall of the installation chamber 301, allowing the sliding frame 303 to move flexibly when needed. Multiple baffle plates 304 are fixedly connected to the inner wall of the sliding frame 303 to block the separation of materials. A discharge port 305 is opened on the top right side of the separation plate 302, through which the lighter processed materials can be discharged smoothly. A second processing component 306 is opened on the left side of the separation plate 302. A storage component 307 is opened on the rear side of the installation chamber 301. An air inlet 309 is also provided on the left side of the installation chamber 301. A material distribution component 308 is fixedly connected to the left side of the air inlet 309. The material distribution component 308 blows the material to separate the incoming material.

[0024] The second processing component 306 includes a second discharge port 3061, which is located in the middle of the separating plate 302. A second baffle plate 3062 is fixedly connected to the left side of the outer wall of the sliding frame 303. The storage component 307 includes a processing port 3071, which is located at the rear of the installation chamber 301. A rotating door 3072 is rotatably connected to the outer wall of the processing port 3071. The material distribution component 308 includes a protective cover 3081, whose outer wall is located on the left side of the installation chamber 301. A fan 3082 is provided on the inner wall of the protective cover 3081. Specifically, the discharge port 3061 is located in the middle of the separation plate 302 to ensure smooth and efficient material flow. A baffle plate 3062 is fixedly connected to the left side of the outer wall of the sliding frame 303 to prevent material from overflowing during sliding, thereby ensuring the stable operation of the entire system. The receiving component 307 includes a processing port 3071, which is located at the rear of the installation chamber 301. The outer wall of the processing port 3071 is rotatably connected to the rotating door 3072, improving ease of use. The material distribution component 308 consists of a protective cover 3081, the outer wall of which is located on the left side of the installation chamber 301. A fan 3082 is installed on the inner wall of the protective cover 3081 to assist in the uniform distribution and efficient separation of materials through wind power.

[0025] The transmission assembly 404 includes a rotating column 4041, the outer wall of which is rotatably connected to the inner wall of the connecting plate 403, and a conveyor belt 4042 rotatably connected to the outer wall of the rotating column 4041. The ionization assembly 409 includes a roller motor 4091, the outer wall of which is fixedly connected to the outside of the rotating shaft 408, an electrode barrel 4092 is provided on the outer wall of the roller motor 4091, and a distribution plate 4010 is provided on the outer wall of the ionization assembly 409. The transmission assembly 404 includes a rotating column 4041, the outer wall of which is rotatably connected to the inner wall of the connecting plate 403, and a conveyor belt 4042 rotatably connected to the outer wall of the rotating column 4041. Specifically, a fixing frame 402 is installed on the outer wall of the support base 401. The main function of the fixing frame 402 is to provide stable support and fixation. A connecting plate 403 is set on the outer wall of the fixing frame 402. The connecting plate 403 is used for connection to ensure the stability of the overall structure. A transmission component 404 is set on the inner wall of the connecting plate 403. A support plate 405 is fixedly connected to the right outer wall of the connecting plate 403 to provide additional support. A second motor 406 is installed on the front side of the connecting plate 403. The output end of the second motor 406 is rotatably connected to the conveyor belt 407. The conveyor belt 407 rotates under the drive of the second motor 406, thereby realizing the transmission of materials. A rotating shaft 408 is rotatably connected to the inner wall of the conveyor belt 407. The function of the rotating shaft 408 is to support and stabilize the operation of the conveyor belt 407. An ionization component 409 is set on the outer wall of the rotating shaft 408. The ionization component 409 ionizes the material during the transmission process to ensure that the material maintains a good state during the transmission process. The transmission component 404 includes a rotating column 4041. The outer wall of the rotating column 4041 is rotatably connected to the inner wall of the connecting plate 403 to ensure that the rotating column 4041 can rotate flexibly. A conveyor belt 4042 is rotatably connected to the outer wall of the rotating column 4041. The conveyor belt 4042 rotates under the drive of the rotating column 4041 to realize the transmission and distribution of materials.

[0026] The buffer assembly 203 includes a separation block 2031, the outer wall of which is rotatably connected to the inner wall of the feed rack 10, and a rotating blade 2032 is fixedly connected to the top outer wall of the feed rack 10. The grinding assembly 206 includes a motor 2061, the outer wall of which is fixedly connected to the top of the processing layer 205, and a grinding plate 2062 is fixedly connected to the output end of the motor 2061. The filter assembly 208 includes a separation layer 2081, the outer wall of which is fixedly connected to the bottom of the processing layer 205, and a screen 2082 is fixedly connected to the inner wall of the separation layer 2081. Specifically, the outer wall of the separating block 2031 is mounted on the inner wall of the feeding rack 10 via a rotatable connection, ensuring that the two can rotate flexibly while maintaining a stable structural relationship. The top outer wall of the feeding rack 10 is fixedly connected to the rotating blade 2032, enabling the rotating blade 2032 to play an important role in the feeding process and ensuring that the material enters smoothly. The grinding assembly 206 includes a motor 2061, the outer wall of which is fixed at the top of the processing layer 205 to ensure its stability during operation. The output end of the motor 2061 is fixedly connected to the grinding plate 2062, so that the power of the motor 2061 can be efficiently transmitted to the grinding plate 2062, thereby achieving effective grinding of the material. The filtering assembly 208 includes a separating layer 2081, the outer wall of which is fixed to the bottom of the processing layer 205 to ensure that it will not shift during the filtering process. The inner wall of the separating layer 2081 is tightly connected to the screen 2082, the function of which is to filter out leaf stems in the material.

[0027] The second processing component 306 includes a second discharge port 3061, which is located in the middle of the separating plate 302. A second baffle plate 3062 is fixedly connected to the left side of the outer wall of the sliding frame 303. The storage component 307 includes a processing port 3071, which is located at the rear of the installation chamber 301. A rotating door 3072 is rotatably connected to the outer wall of the processing port 3071. The material distribution component 308 includes a protective cover 3081, whose outer wall is located on the left side of the installation chamber 301. A fan 3082 is provided on the inner wall of the protective cover 3081. Specifically, the discharge port 3061 is located in the middle of the separation plate 302 to ensure smooth and efficient material flow. A baffle plate 3062 is fixedly connected to the left side of the outer wall of the sliding frame 303 to prevent material from overflowing during sliding, thereby ensuring the stable operation of the entire system. The receiving component 307 includes a processing port 3071, which is located at the rear of the installation chamber 301. The outer wall of the processing port 3071 is rotatably connected to the rotating door 3072, improving ease of use. The material distribution component 308 consists of a protective cover 3081, the outer wall of which is located on the left side of the installation chamber 301. A fan 3082 is installed on the inner wall of the protective cover 3081 to assist in the uniform distribution and efficient separation of materials through wind power.

[0028] Working principle: A buffer block 2032 is provided on the top of the feeding rack 10 to break up the input raw materials. Under the rotation of the cross separation bar 2031, the raw materials enter the waste treatment bin 201 in batches. The bottom of the feeding rack 10 is connected to the waste treatment bin 201 through the outer wall of the threaded column 202. After the raw materials enter, they are guided by the inclined plate 204 on the top of the waste treatment bin 201 and enter the treatment box 205. After the motor 2061 is started, it drives the grinding plate 2062 to start clockwise. After the raw materials are ground once, they are discharged from the trough 209 and fall into the filter assembly 208. There is an inclined screen 2082 on the inner wall of the separation layer 2081 to separate the raw materials. The waste is filtered on the screen 2082 and discharged through the waste pipe 207 to achieve the separation effect while ensuring the continuity of processing. After passing through the preliminary processing mechanism 20, the raw materials enter the installation chamber 301. Under the blowing of the blower 3082, due to the inconsistent moisture content of the raw materials, their weights are different, resulting in different distances being blown by the blower 3082. After being screened by the first baffle plate 304 on the sliding frame 303, they fall onto the separation plate 302. At the same time, the different openings of the first discharge port 305 and the second discharge port 3061 separate the different raw materials and let them fall to the bottom. A collection component 307 is rotatably connected to the rear side for cleaning the installation chamber 301. A support base 401 is connected to the outer wall of the installation chamber 301. A fixing frame 402 is provided in the middle of the support base 401 for docking with the connecting plate 403. After the raw material is screened by the separation and processing mechanism 30, it falls onto the conveyor belt 4042 and is driven by the rotating column 4041. A second motor 406 is provided on the right side of the connecting plate 403 and is fixed by the support plate 405. Driven by the second motor 406, the conveyor belt 407 rotates, which in turn causes the rotating shaft 408 to rotate, driving the ionization component 409 to perform ionization screening. After being energized by the drum motor 4091, it is combined with the outer distribution plate 4010. The negative electrode of the high voltage static electricity is connected to the electrode cylinder 4092, and the positive electrode is connected to the distribution plate 4010 and grounded. An electric field exists in the gap between the two, causing the raw material to be screened to fall into the gap of the electric field for separation, thereby achieving the purpose of material selection.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-stage impurity removal and electrostatic separation system for tea stems and leaves, comprising a feeding rack (10), characterized in that, The bottom of the feed rack (10) is provided with a preliminary processing mechanism (20), the bottom of the preliminary processing mechanism (20) is provided with a separation processing mechanism (30), and the bottom of the separation processing mechanism (30) is provided with an electrostatic screening mechanism (40). The preliminary processing mechanism includes a waste processing bin (201), the outer wall of which is located at the bottom of the feed rack (10), a threaded post (202) is threadedly connected to the upper part of the outer wall of the waste processing bin (201), a buffer assembly (203) is fixedly connected to the top of the feed rack (10), an inclined plate (204) is provided on the top of the waste processing bin (201), a waste pipe (207) is connected to the rear side of the waste processing bin (201), a processing box (205) is provided inside the waste processing bin (201), a grinding assembly (206) is provided on the top of the processing box (205), a trough (209) is opened on the front side of the bottom of the processing box (205), and a filter assembly (208) is fixedly connected to the bottom of the processing box (205).

2. The multi-stage impurity removal and electrostatic separation system for tea stems and leaves according to claim 1, characterized in that, The separation processing mechanism (30) includes an installation chamber (301), the outer wall of which is located at the bottom of the preliminary processing mechanism (20). A separation plate (302) is fixedly connected to the inner wall of the installation chamber (301). A sliding frame (303) is slidably connected to the top of the inner wall of the installation chamber (301). A plurality of baffle plates (304) are fixedly connected to the inner wall of the sliding frame (303). A discharge port (305) is opened on the top right side of the separation plate (302). A second processing component (306) is opened on the left side of the separation plate (302). A storage component (307) is opened on the rear side of the installation chamber (301). An air inlet (309) is opened on the left side of the installation chamber (301). A material distribution component (308) is fixedly connected to the left side of the air inlet (309).

3. The multi-stage impurity removal and electrostatic separation system for tea stems and leaves according to claim 1, characterized in that, The electrostatic screening mechanism (40) includes a support base (401), the outer wall of which is located outside the installation chamber (301). A fixing frame (402) is provided on the outer wall of the support base (401), and a connecting plate (403) is provided on the outer wall of the fixing frame (402). A transmission component (404) is provided on the inner wall of the connecting plate (403). A support plate (405) is fixedly connected to the right outer wall of the connecting plate (403). A second motor (406) is provided on the front side of the connecting plate (403). A transmission belt (407) is rotatably connected to the output end of the second motor (406). A rotating shaft (408) is rotatably connected to the inner wall of the transmission belt (407). An ionization component (409) is provided on the outer wall of the rotating shaft (408).

4. The multi-stage impurity removal and electrostatic separation system for tea stems and leaves according to claim 1, characterized in that, The buffer assembly (203) includes a cross-shaped separating bar (2031), the outer wall of which is rotatably connected to the inner wall of the feed rack (10), and a buffer block (2032) is fixedly connected to the top outer wall of the feed rack (10).

5. The multi-stage impurity removal and electrostatic separation system for tea stems and leaves according to claim 1, characterized in that, The grinding assembly (206) includes a motor (2061), the outer wall of which is fixedly connected to the top of the processing box (205), and a grinding plate (2062) is fixedly connected to the output end of the motor (2061).

6. The multi-stage impurity removal and electrostatic separation system for tea stems and leaves according to claim 1, characterized in that, The filter assembly (208) includes a separation layer (2081), the outer wall of which is fixed to the bottom of the processing box (205), and a screen (2082) is fixedly connected to the inner wall of the separation layer (2081).

7. The multi-stage impurity removal and electrostatic separation system for tea stems and leaves according to claim 2, characterized in that, The second processing component (306) includes a discharge port two (3061), which is located in the middle of the separation plate (302), and a barrier plate two (3062) is fixedly connected to the left side of the outer wall of the sliding frame (303).

8. The multi-stage impurity removal and electrostatic separation system for tea stems and leaves according to claim 2, characterized in that, The storage component (307) includes a processing port (3071), which is located on the rear side of the installation compartment (301), and a rotating door (3072) is rotatably connected to the outer wall of the processing port (3071).

9. The multi-stage impurity removal and electrostatic separation system for tea stems and leaves according to claim 2, characterized in that, The material distribution assembly (308) includes a protective cover (3081), the outer wall of which is located on the left side of the installation chamber (301), and a fan (3082) is provided on the inner wall of which.

10. A multi-stage impurity removal and electrostatic separation system for tea stems and leaves according to claim 3, characterized in that, The transmission component (404) includes a rotating column (4041), the outer wall of which is rotatably connected to the inner wall of the connecting plate (403), and a conveyor belt (4042) is rotatably connected to the outer wall of the rotating column (4041). The ionization component (409) includes a roller motor (4091), the outer wall of which is fixedly connected to the outside of the rotating shaft (408), and an electrode barrel (4092) is provided on the outer wall of the roller motor (4091). A distribution plate (4010) is provided on the outer wall of the ionization component (409).

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