Residual grease extraction equipment for spent bleaching clay

By designing a filter press device that combines a rotating ring and an extrusion block, the problems of low extraction efficiency and difficulty in removing waste bleaching clay were solved, achieving efficient continuous extraction and automated operation, thus improving oil extraction efficiency and operational convenience.

CN224199341UActive Publication Date: 2026-05-05CHANGZHOU JINTAN LIANGYOU OIL & FATS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU JINTAN LIANGYOU OIL & FATS CO LTD
Filing Date
2025-05-14
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Existing filter press devices have low extraction efficiency for waste bleaching clay, and the waste bleaching clay, which is pressed into lumps, is not easy to remove from the device.

Method used

A filter press device including a rotating ring and an extrusion block was designed. Through the cooperation of the storage groove on the rotating ring and the extrusion block, continuous filter press and automatic removal of waste bleaching clay are realized. The automated operation is achieved by using the engagement of hydraulic rods and motor-driven gears.

Benefits of technology

It improves the extraction efficiency of oil from waste bleaching clay and simplifies the extraction process, reducing operation time and labor intensity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of spent bleaching clay grease extraction, in particular to residual grease extraction equipment for spent bleaching clay, which comprises a filter pressing part, a through arc-shaped through hole is formed in the side wall of the filter pressing part, and a rotating ring rotationally arranged in the through hole is sleeved on the filter pressing part. The top of the rotating ring is uniformly provided with three vertically-through storage grooves, each storage groove is internally provided with a liftable filter plate, the top of the inner cavity of the through opening is provided with a top groove in a clamping manner, the top groove is internally and movably provided with an extrusion block matched with the storage groove in size, the bottom of the side wall of the filter pressing part is provided with a bottom groove, the bottom end of the through opening is communicated with the bottom groove, and the bottom end of the through opening is communicated with the bottom groove. According to the waste clay filter pressing device disclosed by the utility model, through the three storage grooves in the rotating ring, the filter pressing efficiency of waste clay can be improved, and blocky waste clay after filter pressing can be conveniently taken out.
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Description

Technical Field

[0001] This utility model relates to the field of oil extraction technology from waste bleaching clay, and in particular to a device for extracting residual oil from waste bleaching clay. Background Technology

[0002] In the oil processing process, bleaching clay is used as an adsorbent to remove impurities from oils, such as pigments, colloids, and free fatty acids. After a period of use, the adsorption capacity of the bleaching clay becomes saturated, and it becomes waste bleaching clay. This waste bleaching clay contains a large amount of oil (usually accounting for about 10%-50%), impurities, and substances adsorbed from the oil. Therefore, it is necessary to extract the residual oil from the waste bleaching clay. Usually, pressure filtration is used to extract the residual oil from the waste bleaching clay. However, common pressure filtration devices have low extraction efficiency for waste bleaching clay. Each extraction requires removing the filtered waste bleaching clay from the device and then adding new waste bleaching clay to be filtered, which wastes a lot of time. In addition, the waste bleaching clay that has been filtered into lumps is not easy to remove from the device. Therefore, this application proposes a residual oil extraction device for waste bleaching clay. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a residual oil extraction device for waste bleaching clay, so as to solve the problems of low extraction efficiency of waste bleaching clay by the filter press device in the above-mentioned background technology, and the difficulty in removing the lumpy waste bleaching clay from the device.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: It includes a filter press, with a through arc-shaped opening on the side wall of the filter press. A rotating ring, rotatably disposed inside the opening, is fitted onto the filter press. Three vertically penetrating storage slots are evenly distributed on the top of the rotating ring, and each of the three storage slots contains a liftable filter plate. A top groove is fitted into the top of the inner cavity of the opening, and a pressing block adapted to the size of the storage slot is movably installed in the top groove. A bottom groove is formed at the bottom of the side wall of the filter press, and the bottom end of the opening communicates with the bottom groove. A collection box is movably inserted into the bottom groove. A base located at the bottom of the rotating ring is fixedly installed on the outside of the filter press.

[0005] Optionally, the size of the opening at the bottom of the storage trough is smaller than the size of the filter plate. An inverted L-shaped plate groove is provided on both sides of the inner wall of each storage trough. A rod groove is provided at the horizontal part of each plate groove. A connecting plate located in the corresponding plate groove is fixedly connected to both ends of each filter plate. A second hydraulic rod is fixedly installed in each rod groove. The telescopic end of each second hydraulic rod is fixedly connected to the bottom of the horizontal part of the corresponding connecting plate.

[0006] Optionally, each of the four corners at the top of the storage compartment has a groove, a screw is fixedly installed in each groove, and a nut is threaded onto each screw.

[0007] Optionally, the bottom of the outer wall of the rotating ring is provided with toothed grooves, a fixing plate is fixedly installed on the side wall of the base, a motor is fixedly installed on the fixing plate, a gear that meshes with the toothed groove is fixedly installed at the output end of the motor, and a limiting component that contacts the inner wall of the rotating ring is fixedly installed on the side wall of the filter press.

[0008] Optionally, the limiting component includes a fixed frame with a cross-shaped cross section. One end of the fixed frame is fixedly connected to the outer wall of the filter press. Rotatable rollers are provided at the other three ends of the fixed frame, and the side wall of each roller is in contact with the inside of the rotating ring.

[0009] Optionally, the bottom of the rotating ring is evenly provided with three sets of ball grooves, each set of ball grooves is located between every two adjacent storage slots, and each ball groove is provided with a rotatable ball, the part of each ball extending out of the ball groove abutting against the top of the base.

[0010] Optionally, a first hydraulic rod is fixedly installed on the top of the filter press section. The telescopic end of the first hydraulic rod extends into the top groove and is fixedly connected to the top of the extrusion block. A handle is fixedly installed at the center of the outer side of the collection box, and a scale cylinder is provided on the side of the collection box. A connecting pipe connected to the bottom of the collection box is fixedly connected to the bottom of the collection box.

[0011] The beneficial effects of this utility model are:

[0012] 1. By controlling the first hydraulic rod to push the extrusion block down into a movable storage slot on the rotating ring, the extrusion block extrudes the waste clay in the storage slot, thereby squeezing out the residual oil in the waste clay. Then, the motor is operated so that the gear at its output end meshes with the tooth groove on the outer wall of the rotating ring, causing another storage slot at the top of the rotating ring to move into the opening in the filter press section, while the storage slot containing the extruded waste clay moves out of the filter press section. In this way, the waste clay can be continuously filtered, thereby improving the extraction efficiency of oil from the waste clay.

[0013] 2. When the squeezed waste bleaching soil is removed from the filter press, the second hydraulic rod in the control rod groove causes its telescopic end to push the connecting plate upward in the plate grooves on both sides of the storage groove, thereby driving the filter plate in the storage groove to move upward. In this way, the squeezed waste bleaching soil can be pushed out of the storage groove, making it easier to remove the waste bleaching soil. Attached Figure Description

[0014] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a side view of the structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the filter press, rotating ring and base of this utility model;

[0018] Figure 4 This is a schematic diagram of the rotating ring structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the filter press, collection box and base of this utility model;

[0020] Figure 6 This is a schematic diagram of the structure of the bottom of the rotating ring of this utility model;

[0021] In the diagram: 1. Filter press; 2. Inlet; 3. Bottom groove; 4. Extrusion block; 5. First hydraulic rod; 6. Collection box; 7. Scale cylinder; 8. Rotating ring; 9. Storage groove; 10. Plate groove; 11. Rod groove; 12. Filter plate; 13. Connecting plate; 14. Second hydraulic rod; 15. Groove; 16. Toothed groove; 17. Base; 18. Fixing plate; 19. Motor; 20. Gear; 21. Limiting component; 22. Ball bearing. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] Please see Figures 1-6This utility model provides a technical solution: it includes a filter press 1, with a through arc-shaped opening 2 on the side wall of the filter press 1. A rotating ring 8 is rotatably mounted inside the opening 2 and fitted onto the filter press 1. Three vertically penetrating storage slots 9 are evenly distributed on the top of the rotating ring 8, and each of the three storage slots 9 contains a liftable filter plate 12. A top groove is fitted into the top of the inner cavity of the opening 2, and a pressing block 4 adapted to the size of the storage slot 9 is movably installed in the top groove. A bottom groove 3 is formed at the bottom of the side wall of the filter press 1, and the bottom end of the opening 2 communicates with the bottom groove 3. A collection box 6 is movably inserted into the bottom groove 3. A base 17 located at the bottom of the rotating ring 8 is fixedly installed on the outside of the filter press 1. The first hydraulic rod 5 is controlled to push the extrusion block 4 down into a movable storage slot 9 on the rotating ring 8. The extrusion block 4 extrudes the waste clay in the storage slot 9, thereby squeezing out the residual oil in the waste clay. The squeezed oil drips through the filter plate 12 into the collection box 6 below. Then, the motor 19 is operated so that the gear 20 at its output end meshes with the tooth groove 16 on the outer wall of the rotating ring 8, thereby driving the rotating ring 8 to rotate so that another storage slot 9 at its top moves into the opening 2 in the filter press 1. The storage slot 9 containing the squeezed waste clay moves out of the filter press 1. In this way, the waste clay can be continuously filtered, thereby improving the extraction efficiency of oil from the waste clay.

[0024] like Figure 3 and Figure 4 As shown, the size of the bottom opening of the storage trough 9 is smaller than the size of the filter plate 12. Inverted L-shaped plate grooves 10 are provided on both sides of the inner wall of each storage trough 9. A rod groove 11 is provided at the horizontal part of each plate groove 10. Connecting plates 13 located in the corresponding plate groove 10 are fixedly connected to both ends of each filter plate 12. A second hydraulic rod 14 is fixedly installed in each rod groove 11. The telescopic end of each second hydraulic rod 14 is fixedly connected to the bottom of the horizontal part of the corresponding connecting plate 13. By controlling the second hydraulic rod 14 in the rod groove 11, the telescopic end of the connecting plate 13 is pushed upward in the plate grooves 10 on both sides of the storage trough 9, thereby driving the filter plate 12 in the storage trough 9 to move upward. In this way, the squeezed waste white clay can be pushed out of the storage trough 9, which makes it easier to remove the waste white clay.

[0025] like Figure 3 and Figure 4 As shown, each of the four corners at the top of each storage trough 9 has a groove 15. A screw is fixedly installed in each groove 15, and a nut is threaded onto each screw. A filter cloth for filtration is laid in each storage trough 9, and the four corners of the filter cloth are fixed to the screw in the groove 15 and secured with nuts. In this way, the filter cloth can be laid in the storage trough 9. After the waste white soil placed between the filter cloth is squeezed, the grease passes through the filter cloth and the filter plate 12 at the bottom of the storage trough 9 and drips into the collection box 6 in the bottom trough 3, thus completing the collection of grease.

[0026] like Figure 1 and Figure 3 As shown, the bottom of the outer wall of the rotating ring 8 is provided with toothed grooves 16. A fixing plate 18 is fixedly installed on the side wall of the base 17. A motor 19 is fixedly installed on the fixing plate 18. A gear 20 that meshes with the toothed grooves 16 is fixedly installed at the output end of the motor 19. A limiting component 21 that contacts the inner wall of the rotating ring 8 is fixedly installed on the side wall of the filter press 1. By running the motor 19, the gear 20 at its output end meshes with the toothed grooves 16 on the side wall of the rotating ring 8, thereby driving the rotating ring 8 to rotate on the base 17. This allows the three storage slots 9 on the rotating ring 8 to enter the through-hole 2 in the filter press 1 in sequence, so that the extrusion block 4 in the top groove above the through-hole 2 can extrude the waste bleaching clay in the storage slots 9, thereby extruding the grease from the waste bleaching clay.

[0027] like Figure 1 and Figure 5 As shown, the limiting component 21 includes a fixed frame with a cross-shaped cross section. One end of the fixed frame is fixedly connected to the outer wall of the filter press 1. Rotatable rollers are provided at the other three ends of the fixed frame. The side wall of each roller is in contact with the inside of the rotating ring 8. The limiting component 21 can constrain the position of the rotating ring 8, so that the rotating ring 8 will not wobble or deviate when rotating, thereby allowing the rotating ring 8 to rotate more stably in the opening 2 on the side of the filter press 1.

[0028] like Figure 6 As shown, the bottom of the rotating ring 8 is evenly provided with three sets of ball grooves. Each set of ball grooves is located between every two adjacent storage slots 9. Each ball groove is provided with a rotatable ball 22. The part of each ball 22 that extends out of the ball groove abuts against the top of the base 17. The ball 22 can reduce the contact area between the bottom of the rotating ring 8 and the top of the base 17, thereby reducing the friction between the two and making it easier for the rotating ring 8 to rotate on the base 17.

[0029] like Figure 2 and Figure 5 As shown, a first hydraulic rod 5 is fixedly installed on the top of the filter press 1. The telescopic end of the first hydraulic rod 5 extends into the top groove and is fixedly connected to the top of the extrusion block 4. A handle is fixedly installed at the center of the outer side of the collection box 6, and a scale cylinder 7 is provided on the side of the collection box 6. A connecting pipe connected to the bottom of the collection box 6 is fixedly connected to the bottom of the collection box 6. The collection box 6 and the scale cylinder 7 can be connected through the connecting pipe. The scale cylinder 7 is made of transparent material, so the amount of oil collected in the collection box 6 can be seen in real time.

[0030] 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. 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 device for extracting residual oil from waste bleaching clay, comprising a filter press (1), characterized in that, The side wall of the filter press (1) is provided with a through arc-shaped opening (2). A rotating ring (8) is fitted on the filter press (1) and rotated inside the opening (2). The top of the rotating ring (8) is provided with three vertically connected storage slots (9). Each of the three storage slots (9) is provided with a liftable filter plate (12). The top of the cavity of the opening (2) is provided with a top groove. A pressing block (4) that matches the size of the storage slot (9) is movably installed in the top groove. A bottom groove (3) is provided at the bottom of the side wall of the filter press (1). The bottom end of the opening (2) is connected to the bottom groove (3). A collection box (6) is movably inserted into the bottom groove (3). A base (17) located at the bottom of the rotating ring (8) is fixedly installed on the outside of the filter press (1).

2. The equipment for extracting residual oil from waste bleaching clay according to claim 1, characterized in that, The bottom opening of the storage trough (9) is smaller than the size of the filter plate (12). An inverted L-shaped plate groove (10) is provided on both sides of the inner wall of each storage trough (9). A rod groove (11) is provided at the horizontal part of each plate groove (10). A connecting plate (13) located in the corresponding plate groove (10) is fixedly connected to both ends of each filter plate (12). A second hydraulic rod (14) is fixedly installed in each rod groove (11). The telescopic end of each second hydraulic rod (14) is fixedly connected to the bottom of the horizontal part of the corresponding connecting plate (13).

3. The equipment for extracting residual oil from waste bleaching clay according to claim 1, characterized in that, Each of the four corners at the top of each storage slot (9) is provided with a groove (15), and a screw is fixedly installed in each groove (15), and a nut is threaded onto each screw.

4. The equipment for extracting residual oil from waste bleaching clay according to claim 1, characterized in that, The bottom of the outer wall of the rotating ring (8) is provided with toothed grooves (16). A fixing plate (18) is fixedly installed on the side wall of the base (17). A motor (19) is fixedly installed on the fixing plate (18). A gear (20) that meshes with the toothed groove (16) is fixedly installed at the output end of the motor (19). A limiting component (21) that contacts the inner wall of the rotating ring (8) is fixedly installed on the side wall of the filter press (1).

5. The residual oil extraction equipment for waste bleaching clay according to claim 4, characterized in that, The limiting component (21) includes a fixed frame with a cross-shaped cross section. One end of the fixed frame is fixedly connected to the outer wall of the filter press (1). Rotatable rollers are provided at the other three ends of the fixed frame. The side wall of each roller is in contact with the inside of the rotating ring (8).

6. The equipment for extracting residual oil from waste bleaching clay according to claim 1, characterized in that, The bottom of the rotating ring (8) is evenly provided with three sets of ball grooves. Each set of ball grooves is located between two adjacent storage slots (9). Each ball groove is provided with a rotatable ball (22). The part of each ball (22) extending out of the ball groove abuts against the top of the base (17).

7. The equipment for extracting residual oil from waste bleaching clay according to claim 1, characterized in that, A first hydraulic rod (5) is fixedly installed on the top of the filter press (1). The telescopic end of the first hydraulic rod (5) extends into the top groove and is fixedly connected to the top of the extrusion block (4). A handle is fixedly installed at the center of the outer side of the collection box (6). A scale cylinder (7) is provided on the side of the collection box (6). A connecting pipe that communicates with the bottom of the collection box (6) is fixedly connected to the bottom of the scale cylinder (7).