Extractor with self-cleaning function
By designing synchronously rotating pressure plates and automatic cleaning devices in the extractor, the problems of oil residue and oil adhesion are solved, realizing the self-cleaning function of the extractor and improving the efficiency and quality of oil processing.
Patent Information
- Application Number
- CN202520542412.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-03-26
AI Technical Summary
Existing rotary extractors lack self-cleaning functions during oil extraction, resulting in oil residue and oil adhesion, which affects processing efficiency and quality.
Design a leaching device with a self-cleaning function. During the leaching process, the downward-moving pressure plate rotates synchronously with the material container to squeeze the oil to extract the oil liquid and discharge the oil residue. It is equipped with an automatic reset and cleaning device, including brush strips and elastic reset components, to achieve automatic cleaning.
It improves the cleanliness of the container, increases the processing efficiency and quality of edible oil, reduces oil residue and oil adhesion, and simplifies the cleaning process.
Smart Images

Figure CN223823534U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of edible oil processing technology, specifically to an extractor with a self-cleaning function. Background Technology
[0002] Leaching is one of the most critical processes in oil refining. It utilizes the miscibility of oil and solvent; the solvent penetrates into the solid oil, dissolving the oil to form a concentrated mixture. Due to the concentration difference, the concentrated mixture inside the solid oil diffuses into the dilute mixture on the outside, extracting the oil. The main equipment in the leaching process is the leaching unit. Currently, the main leaching units used in production can be divided into rotary leaching units, annular leaching units, and cable-driven leaching units, etc. Among them, rotary leaching units are the most common in small and medium-sized oil plants. The rotary extractor has a cylindrical internal structure with evenly distributed rotating grids. There are approximately one spray pipe above each grid, and an oil collection grid below. The oil collection grid is connected to the spray pipes via an oil pump. During operation, the grids and oil collection grids move in opposite directions. The oil pump draws the mixed oil from the oil collection grid to the spray pipes, which spray the material in the grids to extract the oil, which then falls back into the oil collection grid. Each grid's material needs to be drained after one or two sprays before being sprayed again, until finally exiting through the final outlet. While the mechanism is simple and convenient, it lacks a cleaning and pressure-down structure. The residue in the grids falls off naturally by gravity, leaving residues on the wall after discharge, affecting subsequent feeding and processing. Furthermore, simply draining leaves a significant amount of oil residue in the residue, indicating room for improvement. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide an extractor with a self-cleaning function. When extracting oil, the downward-moving pressure plate can rotate synchronously with the container, and squeeze the oil at the same time, thereby facilitating the extrusion of oil and the discharge of oil residue, improving the cleanliness of the container, and can automatically rotate and reset, which can effectively solve the problems in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a leaching device with a self-cleaning function, comprising a leaching tank, wherein the leaching tank is provided with a supporting filter plate, a supporting shaft is provided on the bottom wall of the leaching tank, the upper end of the supporting shaft extends through the upper surface of the supporting filter plate and is rotatably connected to a uniformly distributed material container, the lower end of the material container is slidably connected to the supporting filter plate, a slag discharge plate is provided at the notch of the supporting filter plate, the end of the slag discharge plate away from the supporting shaft extends out of the leaching tank, and a rotating frame is rotatably connected to the upper end of the supporting shaft. A vertically movable sliding column is slidably connected to one end of the support shaft. A cleaning pressure plate is provided at the lower end of the sliding column, and an elastic reset component is provided at the upper end of the support shaft. The elastic reset component is used to control the reset of the rotating frame after it rotates with the material container. When leaching oil, the downward-moving pressure plate can rotate synchronously with the material container, and squeeze the oil at the same time, which facilitates the extrusion of oil and the discharge of oil residue, thus improving the cleanliness of the material container. At the same time, it can automatically rotate and reset. The leacher with self-cleaning function improves the processing efficiency and processing quality of edible oil.
[0005] Furthermore, the elastic reset assembly includes a support frame, a positioning shaft, and a tension spring. The support frame is located at the upper end of the support shaft, and the positioning shaft is located at the end of the lower surface of the support frame away from the support shaft. A tension spring is located at the upper end of the outer arc surface of the positioning shaft, and the left end of the tension spring is fixedly connected to the rotating frame to facilitate the control of the reset of the rotating frame.
[0006] Furthermore, a support tube is rotatably connected to the middle of the outer arc surface of the support shaft, and multiple material containers are fixedly connected to the support tube through vertical plates, providing support for the material containers.
[0007] Furthermore, the lower end of the outer arc surface of the support tube is provided with evenly distributed brush strips, all of which are slidably connected to the upper surface of the support filter plate. A ring of brush strips is provided around the outer arc surface of the cleaning pressure plate to improve the cleaning effect.
[0008] Furthermore, a controller is provided on the outer arc surface of the leaching tank, and the input end of the controller is electrically connected to an external power source to facilitate automatic control of electrical appliances.
[0009] Furthermore, the upper end of the rotating frame is provided with an electric push rod, the telescopic end of which is fixedly connected to the upper end of the sliding column. A proximity switch is provided in the middle of the rotating frame, and the upright plates are all configured to cooperate with the proximity switch. The input end of the electric push rod is electrically connected to the output end of the controller, and the output end of the proximity switch is electrically connected to the input end of the controller, which facilitates the control of the movement of the cleaning pressure plate.
[0010] Furthermore, a large gear is provided at the upper end of the outer arc surface of the support tube, a motor is provided at the upper end of the support shaft via a motor mount, a small gear is provided at the lower end of the motor's output shaft, the small gear meshes with the large gear, and the input end of the motor is electrically connected to the output end of the controller to facilitate driving the rotation of the support tube.
[0011] Furthermore, a protective cover is provided at the upper end of the support shaft, and the motor is located inside the protective cover, which can provide protection for the internal components.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This leachator with self-cleaning function has the following advantages:
[0013] During the leaching of oil, the downward-moving pressure plate can rotate synchronously with the container, squeezing the oil and facilitating the extraction of oil and discharge of oil residue, thus improving the cleanliness of the container. It can also automatically rotate and reset, and the leaching device with self-cleaning function improves the processing efficiency and quality of edible oil. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a cross-sectional view of the leaching tank of this utility model;
[0016] Figure 3 This is an enlarged structural diagram of point A in this utility model;
[0017] Figure 4 This is a schematic diagram of the support frame of this utility model.
[0018] In the diagram: 1 Leaching tank, 2 Support shaft, 3 Material container, 4 Support filter plate, 5 Rotating frame, 6 Support frame, 7 Positioning shaft, 8 Tension spring, 9 Sliding column, 10 Cleaning pressure plate, 11 Annular brush strip, 12 Controller, 13 Electric push rod, 14 Proximity switch, 15 Support tube, 16 Vertical plate, 17 Large gear, 18 Motor, 19 Small gear, 20 Protective cover, 21 Brush strip, 22 Slag chute. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Please see Figure 1-4This embodiment provides a technical solution: a leachator with a self-cleaning function, including a leach tank 1, a supporting filter plate 4, and a supporting shaft 2 on the bottom wall of the leach tank 1. The upper end of the supporting shaft 2 passes through the upper surface of the supporting filter plate 4 and is rotatably connected to uniformly distributed material collection cylinders 3, with more than four material collection cylinders 3. The lower end of the material collection cylinders 3 is slidably connected to the supporting filter plate 4. Pressed oil is added into the material collection cylinder 3 on the left side, and the oil moves synchronously with the material collection cylinder 3. The solvent pipe on the rear side sprays the oil passing below, leaching out the grease in the oil. The grease dissolves to form a mixed oil that falls downward through the supporting filter plate 4 to the bottom of the leach tank 1, and then is discharged through the liquid outlet pipe. A slag chute 22 is provided at the notch of the supporting filter plate 4. The end of the slag plate 22 away from the support shaft 2 extends out of the leaching tank 1. A rotating frame 5 is rotatably connected to the upper end of the support shaft 2. A vertically movable sliding column 9 is slidably connected to the end of the rotating frame 5 away from the support shaft 2. A cleaning pressure plate 10 is provided at the lower end of the sliding column 9. The material container 3 will rotate synchronously with the sliding column 9 and the rotating frame 5 through the cleaning pressure plate 10. The cleaning pressure plate 10 squeezes the material inside the material container 3 to facilitate the extrusion of oil. At the same time, the material container 3 will gradually align with the slag chute 22, thereby facilitating the discharge of oil slag. An elastic reset component is provided at the upper end of the support shaft 2. The elastic reset component is used to control the reset of the rotating frame 5 after it rotates with the material container 3. The elastic reset component includes a support frame 6, a positioning shaft 7, and a tension spring 8. The support frame 6 is set on the support shaft 22. At the upper end of shaft 2, a positioning shaft 7 is provided on the lower surface of support frame 6 away from support shaft 2. A tension spring 8 is provided on the upper end of the outer arc surface of positioning shaft 7. The left end of tension spring 8 is fixedly connected to rotating frame 5. Rotating frame 5 stretches tension spring 8, and cleaning pressure plate 10 moves out to the outside of material container 3. Tension spring 8 drives rotating frame 5 to rotate clockwise to reset. Support frame 6 and positioning shaft 7 provide installation position for tension spring 8 and positioning for rotating frame 5. Support tube 15 is rotatably connected to the middle of the outer arc surface of support shaft 2. Multiple material containers 3 are fixedly connected to support tube 15 through vertical plate 16. Support tube 15 drives material containers 3 to move along the upper surface of support filter plate 4 through vertical plate 16. The lower end of the outer arc surface of support tube 15 is provided with evenly distributed brush strips 21. All components 1 are slidably connected to the upper surface of the support filter plate 4. The brush strips 21 can rotate synchronously with the support tube 15 to clean the upper surface of the support filter plate 4. A ring-shaped brush strip 11 is provided around the outer arc surface of the cleaning pressure plate 10. The ring-shaped brush strip 11 has a certain degree of flexibility to facilitate the cleaning of the inner wall of the material container 3. A controller 12 is provided on the outer arc surface of the leaching tank 1. The input end of the controller 12 is electrically connected to an external power source. An electric push rod 13 is provided at the upper end of the rotating frame 5. The telescopic end of the electric push rod 13 is fixedly connected to the upper end of the sliding column 9. A proximity switch 14 is provided in the middle of the rotating frame 5. The upright plates 16 are all set in cooperation with the proximity switch 14. The input end of the electric push rod 13 is electrically connected to the output end of the controller 12, and the output end of the proximity switch 14 is electrically connected to the input end of the controller 12.When the cleaning pressure plate 10 corresponds to the material container 3, the upright plate 16 also corresponds to the proximity switch 14. The proximity switch 14 sends an electrical signal to the controller 12, and the electric push rod 13 operates. The telescopic end of the electric push rod 13 drives the cleaning pressure plate 10 to extend into the material container 3 through the sliding column 9. A large gear 17 is provided at the upper end of the outer arc surface of the support tube 15. A motor 18 is provided at the upper end of the support shaft 2 through the motor mount. A small gear 19 is provided at the lower end of the output shaft of the motor 18. The small gear 19 meshes with the large gear 17. The input end of the motor 18 is electrically connected to the output end of the controller 12. The motor 18 drives the support tube 15 to rotate counterclockwise around the support shaft 2 through the small gear 19 and the large gear 17. A protective cover 20 is provided at the upper end of the support shaft 2. The motor 18 is located inside the protective cover 20, which protects the internal components.
[0021] The working principle of the self-cleaning leaching device provided by this utility model is as follows: The controller 12 and motor 18 drive the support tube 15 to rotate counterclockwise around the support shaft 2 via the small gear 19 and large gear 17. The support tube 15 drives the material container 3 to move along the upper surface of the support filter plate 4 via the vertical plate 16. Then, the pressed oil is added into the material container 3 on the left side. The oil moves synchronously with the material container 3. The solvent pipe at the rear sprays the oil passing below, leaching out the grease. The grease dissolves to form a mixed oil that falls downward through the support filter plate 4 to the bottom of the leaching tank 1, and then is discharged through the outlet pipe. When the cleaning plate 10 corresponds to the material container 3, the vertical plate 16 also corresponds to the proximity switch 14. The proximity switch 14 sends an electrical signal to the controller 12, and the controller 12 controls the motor 18 to... After a brief pause, the electric push rod 13 operates. The telescopic end of the electric push rod 13, via the sliding column 9, drives the cleaning pressure plate 10 to extend into the material container 3. The motor 18 continues to operate, and the material container 3, through the cleaning pressure plate 10, drives the sliding column 9 and the rotating frame 5 to rotate synchronously with the material container 3. The rotating frame 5 stretches the tension spring 8, and the cleaning pressure plate 10 squeezes the material inside the material container 3, facilitating the extrusion of oil. Simultaneously, the material container 3 gradually aligns with the slag chute 22, facilitating the discharge of oil slag. After the vertical plate 16 aligns with the next proximity switch 14, the motor 18 briefly stops. Then, the telescopic end of the electric push rod 13 retracts, causing the cleaning pressure plate 10 to move out of the material container 3. The tension spring 8 drives the rotating frame 5 to rotate clockwise to reset. The cleaning pressure plate 10 then continues to insert into the next material container 3 for cleaning.
[0022] It is worth noting that the motor 18, proximity switch 14, controller 12, and electric actuator 13 disclosed in the above embodiments can be freely configured according to the actual application scenario. The motor 18 can be a geared motor of model S57DRS71M4, the proximity switch 14 can be a proximity switch of model E2E-X5MF1, the controller 12 can be a PLC controller of model S7-1200, and the electric actuator 13 can be an electric actuator of model LX-700. The controller 12 controls the operation of the motor 18, proximity switch 14, and electric actuator 13 using methods commonly used in the prior art.
[0023] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A leaching device with a self-cleaning function, comprising a leaching tank (1), wherein the leaching tank (1) is provided with a supporting filter plate (4), and a supporting shaft (2) is provided on the bottom wall of the leaching tank (1). The upper end of the supporting shaft (2) extends through the upper surface of the supporting filter plate (4) and is rotatably connected to uniformly distributed material collection cylinders (3). The lower end of the material collection cylinders (3) is slidably connected to the supporting filter plate (4). A slag discharge plate (22) is provided at the notch of the supporting filter plate (4), and one end of the slag discharge plate (22) away from the supporting shaft (2) extends out of the outside of the leaching tank (1), characterized in that: The upper end of the support shaft (2) is rotatably connected to a rotating frame (5). The end of the rotating frame (5) away from the support shaft (2) is slidably connected to a vertically movable sliding column (9). The lower end of the sliding column (9) is provided with a cleaning pressure plate (10). The upper end of the support shaft (2) is provided with an elastic reset component. The elastic reset component is used to control the reset of the rotating frame (5) after it rotates with the material container (3).
2. The leaching device with self-cleaning function according to claim 1, characterized in that: The elastic reset assembly includes a support frame (6), a positioning shaft (7), and a tension spring (8). The support frame (6) is located at the upper end of the support shaft (2). The lower surface of the support frame (6) away from the support shaft (2) is provided with a positioning shaft (7). The upper end of the outer arc surface of the positioning shaft (7) is provided with a tension spring (8). The left end of the tension spring (8) is fixedly connected to the rotating frame (5).
3. An extractor with a self-cleaning function according to claim 1, characterized in that: The outer arc surface of the support shaft (2) is rotatably connected to the support tube (15), and multiple material cylinders (3) are fixedly connected to the support tube (15) through the vertical plate (16).
4. An extractor with a self-cleaning function according to claim 3, characterized in that: The lower end of the outer arc surface of the support tube (15) is provided with uniformly distributed brush strips (21), and the brush strips (21) are all slidably connected to the upper surface of the support filter plate (4). The outer arc surface of the cleaning pressure plate (10) is provided with annular brush strips (11).
5. An extractor with a self-cleaning function according to claim 3, characterized in that: The outer arc surface of the leaching tank (1) is provided with a controller (12), and the input end of the controller (12) is electrically connected to an external power source.
6. An extractor with a self-cleaning function according to claim 5, characterized in that: The upper end of the rotating frame (5) is provided with an electric push rod (13). The telescopic end of the electric push rod (13) is fixedly connected to the upper end of the sliding column (9). The middle part of the rotating frame (5) is provided with a proximity switch (14). The upright plate (16) is set in conjunction with the proximity switch (14). The input end of the electric push rod (13) is electrically connected to the output end of the controller (12), and the output end of the proximity switch (14) is electrically connected to the input end of the controller (12).
7. An extractor with a self-cleaning function according to claim 5, characterized in that: The upper end of the outer arc surface of the support tube (15) is provided with a large gear (17), the upper end of the support shaft (2) is provided with a motor (18) through a motor seat, the lower end of the output shaft of the motor (18) is provided with a small gear (19), the small gear (19) meshes with the large gear (17), and the input end of the motor (18) is electrically connected to the output end of the controller (12).
8. An extractor with a self-cleaning function according to claim 7, characterized in that: The upper end of the support shaft (2) is provided with a protective cover (20), and the motor (18) is located inside the protective cover (20).