Extraction device with multi-stage filtration
By employing a multi-stage filtration system and an easily removable filter plate design, the problems of insufficient filtration of impurity particles and filter plate clogging in existing extraction devices are solved, achieving efficient filtration and easy cleaning of the solution, thus improving the extraction effect and practicality.
Patent Information
- Application Number
- CN202520865614.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-06
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-05-06
AI Technical Summary
Existing extraction devices cannot effectively handle impurity particles of different sizes during the filtration process, and the filter plates are prone to clogging, making disassembly and cleaning inconvenient, which affects the extraction effect and practicality.
A multi-stage filtration system is adopted, including a first filter plate, a second filter plate, and a third filter plate, with the pore size decreasing sequentially. The system is easy to disassemble and clean through the structure of retaining strips and guide rods. Combined with the mixing and stirring of the stirring rod and spiral blades, it ensures that the solution is mixed evenly.
It achieves thorough filtration of impurity particles of different sizes in the solution, prevents clogging, simplifies the cleaning process of the filter plate, and improves the flexibility and efficiency of the extraction device.
Smart Images

Figure CN223959227U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of extraction device technology, specifically to an extraction device with multi-stage filtration. Background Technology
[0002] An extraction device is a combination of equipment used for extraction operations. Extraction is an operation method that uses the difference in solubility of solutes in immiscible solvents to extract solutes from a solution composed of one solvent and another solvent. The main purpose of an extraction device is to achieve efficient and accurate separation of substances, and it is widely used in the chemical, pharmaceutical and food industries.
[0003] Existing extraction devices typically require filtration during the extraction process to separate the filter cake from the filtrate, facilitating subsequent extraction and preventing impurities in the filtrate from affecting extraction quality. However, existing extraction devices struggle to effectively filter out impurities of varying sizes in the solution, as the filter plates have uniform pore sizes. Furthermore, after a period of use, the filter plates accumulate, requiring filter cake collection and cleaning. Disassembling the filter plates is cumbersome, requiring the removal of multiple bolts, thus reducing their practicality. Summary of the Invention
[0004] To address the above problems, the purpose of this utility model is to provide an extraction device with multi-stage filtration, which solves the problems that during the filtration process, impurities in the solution are of different sizes, making it impossible to filter them sufficiently and affecting the extraction effect. Furthermore, the filter plates are prone to clogging after prolonged use, and the disassembly and cleaning of the filter plates is quite troublesome.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an extraction device with multi-stage filtration, comprising a fixed frame, a mixing cylinder fixedly connected to the fixed frame, a conveying pipe fixedly connected to the lower end face of the mixing cylinder, a control valve fixedly connected to the conveying pipe, a filter box fixedly connected to the lower end face of the conveying pipe, an installation groove on one side of the filter box, a U-shaped frame movably connected within the installation groove, a first slot, a second slot, and a third slot on the inner walls of both sides of the U-shaped frame, a first filter plate movably connected between two first slots, a second filter plate movably connected between two second slots, and a third filter plate movably connected between two third slots, the pore sizes of the first, second, and third filter plates decreasing sequentially, a sealing plate fixedly connected to one side of the U-shaped frame, a positioning frame fixedly connected to the upper end face of the filter box, a guide rod fixedly connected to the positioning frame, a retaining strip fixedly connected to the guide rod, a spring sleeved on the outer surface of the guide rod, and both ends of the spring fixedly connected to the retaining strip and the positioning frame, respectively.
[0006] The beneficial effects of this utility model are as follows: By using the mixing cylinder, the solution can be fully mixed. With the use of the control valve, the delivery pipe is opened, and the solution is delivered to the filter box. After passing through the first filter plate, the second filter plate, and the third filter plate, impurity particles of different sizes in the solution are fully filtered. With the upward movement of the two locking strips, the locking strips slide on the guide rod and squeeze the spring, thereby separating the locking strips from the sealing plate, which facilitates the disassembly of the sealing plate and the quick cleaning of the first, second, and third filter plates, improving the flexibility of use.
[0007] In order to achieve thorough mixing of the solution;
[0008] As a further improvement to the above technical solution: a drive motor is fixedly connected to the upper end face of the mixing cylinder, and a rotating rod is connected to the output end of the drive motor. Multiple sets of evenly distributed stirring rods and spiral blades are fixedly connected to the rotating rod.
[0009] The beneficial effects of this improvement are as follows: by driving the motor, the rotating rod drives multiple sets of stirring rods to rotate, which fully stirs the solution in the mixing cylinder. Combined with the rotation of the spiral blades, the solution at the bottom of the mixing cylinder is turned upward, ensuring that the solution is fully and evenly mixed.
[0010] In order to achieve stable support for the U-shaped frame;
[0011] As a further improvement to the above technical solution: a fixing rod is fixedly connected to the inner wall of both sides of the filter box, and a connecting groove is opened on the symmetrical side of the two fixing rods. A connecting rod is movably connected in the connecting groove, and the connecting rod is fixedly connected to the U-shaped frame.
[0012] The beneficial effects of this improvement are: by connecting the connecting rod and the connecting groove, the U-shaped frame can be connected to the two fixed rods, ensuring that the U-shaped frame remains sufficiently stable during use and will not tilt or shake.
[0013] In order to achieve a seal at the connection between the sealing plate and the filter box;
[0014] As a further improvement to the above technical solution: a sealing groove is provided on the same side as the sealing plate of the filter box, a sealing frame is movably connected in the sealing groove, and the sealing tube is fixedly connected to the sealing plate;
[0015] The beneficial effects of this improvement are: by using the sealing groove and sealing frame, the connection between the sealing plate and the filter box can be sealed to prevent the filtrate from overflowing from the connection between the sealing plate and the filter box, thus ensuring good sealing performance.
[0016] In order to limit the movement of the card strip and ensure its stability;
[0017] As a further improvement to the above technical solution: a limiting groove is provided on the side of the filter box that contacts the card strip, a limiting block is slidably connected in the limiting groove, and the limiting block is fixedly connected to the card strip;
[0018] The beneficial effects of this improvement are: by using the limiting groove and the limiting block, the card strip can be limited, ensuring that the card strip remains stable enough during use and will not tilt or shake arbitrarily.
[0019] In order to transport and collect the filtered liquid;
[0020] As a further improvement to the above technical solution: an extraction pipe is fixedly connected to the other side of the filter box, a delivery pump is fixedly connected to the side of the extraction pipe away from the filter box, and a recovery pipe is fixedly connected to the end of the delivery pump away from the extraction pipe.
[0021] The beneficial effects of this improvement are as follows: by using the pump, the filtrate filtered at the bottom of the filter box can be effectively transported, preventing the filtrate from accumulating at the bottom of the filter box, facilitating the rapid transport and collection of the filtrate, and making it easier to process the filtrate in subsequent steps.
[0022] In order to add raw materials into the mixing cylinder;
[0023] As a further improvement to the above technical solution: a feed pipe is fixedly connected to the upper end face of the mixing cylinder;
[0024] The beneficial effects of this improvement are: by using a feed pipe, the required solution and additives can be introduced into the mixing cylinder, facilitating mixing and extraction.
[0025] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description
[0026] Figure 1 Schematic diagram of the three-dimensional structure provided by this utility model Figure 1 ;
[0027] Figure 2 Top view provided for this utility model;
[0028] Figure 3 Provided by this utility model Figure 2 A three-dimensional cross-sectional view at point AA;
[0029] Figure 4 Front view provided for this utility model;
[0030] Figure 5 Provided by this utility model Figure 4 3D cross-sectional view at point BB;
[0031] Figure 6 Provided by this utility model Figure 5 Enlarged view of point A in the middle;
[0032] Figure 7 Schematic diagram of the three-dimensional structure provided by this utility model Figure 2 ;
[0033] Figure 8 Schematic diagram of the three-dimensional structure provided by this utility model Figure 3 .
[0034] In the diagram, 1. Fixed frame; 11. Mixing cylinder; 12. Conveying pipe; 13. Control valve; 14. Filter box; 15. Mounting slot; 16. U-shaped frame; 17. First slot; 18. Second slot; 19. Third slot; 20. First filter plate; 21. Second filter plate; 22. Third filter plate; 23. Sealing plate; 24. Positioning frame; 25. Guide rod; 26. Locking strip; 27. Spring; 31. Drive motor; 32. Rotating rod; 33. Stirring rod; 34. Spiral blade; 41. Fixed rod; 42. Connecting slot; 43. Connecting rod; 51. Sealing slot; 52. Sealing frame; 61. Limiting slot; 62. Limiting block; 71. Extraction pipe; 72. Conveying pump; 73. Recovery pipe; 81. Feed pipe. Detailed Implementation
[0035] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.
[0036] like Figures 1 to 8As shown in the figure, an extraction device with multi-stage filtration provided by this utility model includes a fixed frame 1, a mixing cylinder 11 fixedly connected to the fixed frame 1, a conveying pipe 12 fixedly connected to the lower end face of the mixing cylinder 11, a control valve 13 fixedly connected to the conveying pipe 12, and a filter box 14 fixedly connected to the lower end face of the conveying pipe 12. By opening the control valve 13, the mixed solution in the mixing cylinder 11 can be conveyed to the filter box 14. A mounting groove 15 is provided on one side of the filter box 14, and a U-shaped frame 16 is movably connected in the mounting groove 15. A first slot 17, a second slot 18, and a third slot 19 are provided on the inner walls of both sides of the U-shaped frame 16. A first filter plate 20 is movably connected between the two first slots 17, and a filter plate 20 is movably connected between the two second slots 18. A second filter plate 21 is connected, and a third filter plate 22 is movably connected between two third slots 19. The pore sizes of the first filter plate 20, the second filter plate 21, and the third filter plate 22 decrease sequentially. Using the first filter plate 20, the second filter plate 21, and the third filter plate 22, impurity particles of different sizes in the solution are thoroughly filtered. A sealing plate 23 is fixedly connected to one side of the U-shaped frame 16. A positioning frame 24 is fixedly connected to the upper end face of the filter box 14. A guide rod 25 is fixedly connected to the positioning frame 24, and a retaining strip 26 is fixedly connected to the guide rod 25. A spring 27 is sleeved on the outer surface of the guide rod 25. The two ends of the spring 27 are fixedly connected to the retaining strip 26 and the positioning frame 24 respectively, and move upwards simultaneously with the two retaining strips 26. The spring 27 is compressed, causing the two retaining strips 26 to disengage from the sealing plate 23, thus facilitating the disassembly of the sealing plate 23 and the cleaning of the first filter plate 20, the second filter plate 21, and the third filter plate 22. A drive motor 31 is fixedly connected to the upper end of the mixing cylinder 11, and a rotating rod 32 is connected to the output end of the drive motor 31. Multiple sets of evenly distributed stirring rods 33 and spiral blades 34 are fixedly connected to the rotating rod 32. The operation of the drive motor 31 causes the rotating rod 32 to carry the multiple sets of evenly distributed stirring rods 33 for thorough stirring. Fixed rods 41 are fixedly connected to the inner walls of both sides of the filter box 14. A connecting groove 42 is opened on the symmetrical side of the two fixed rods 41, and a connecting rod 43 is movably connected in the connecting groove 42. The two connecting rods 43 are fixedly connected to the U-shaped frame 16, and their respective connecting grooves 42 are aligned to ensure the stability of the U-shaped frame 16 during use. A sealing groove 51 is provided on the same side as the sealing plate 23, and a sealing frame 52 is movably connected within the sealing groove 51. The sealing tube is fixedly connected to the sealing plate 23. The sealing groove 51 and sealing frame 52 effectively seal the connection between the sealing plate 23 and the filter box 14, preventing filtrate overflow. A limiting groove 61 is provided on the side of the filter box 14 that contacts the retaining strip 26. A limiting block 62 is slidably connected within the limiting groove 61 and is fixedly connected to the retaining strip 26. The limiting groove 61 and limiting block 62 limit the retaining strip 26.To ensure sufficient stability during use, the card strip 26 is fixedly connected to another side of the filter box 14 via an extraction pipe 71. A delivery pump 72 is fixedly connected to the side of the extraction pipe 71 furthest from the filter box 14, and a recovery pipe 73 is fixedly connected to the end of the delivery pump 72 furthest from the extraction pipe 71. Through the use of the delivery pump 72 and the extraction pipe 71, the filtrate at the bottom of the filter box 14 can be transported and collected. Combined with the use of the recovery pipe 73, the filtrate is collected for subsequent processing. A feed pipe 81 is fixedly connected to the upper end of the mixing cylinder 11, allowing the addition of the required material solution into the mixing cylinder 11.
[0037] The working principle and usage process of this utility model are as follows: First, the solution is fed into the mixing cylinder 11 via the feed pipe 81. Under the action of the drive motor 31, the rotating rod 32 rotates, carrying multiple sets of stirring rods 33 and spiral blades 34, to fully stir the solution. After stirring, the control valve 13 is opened, allowing the solution to be fed into the filter box 14. Under the action of the first filter plate 20, the second filter plate 21, and the third filter plate 22, impurities of different sizes are fully filtered. With the help of the extraction pipe 71 of the delivery pump 72, the filtrate is transported and recovered for subsequent processing. By simultaneously moving the two locking strips 26, the locking strips 26 can move upwards along the guide rod 25, squeezing the spring 27, thereby separating the locking strips 26 from the sealing plate 23. This allows the sealing plate 23 to move along with the U-shaped frame 16, thus pulling out the first filter plate 20, the second filter plate 21, and the third filter plate 22 for quick cleaning. This completes the usage process of the multi-stage filtration extraction device.
[0038] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0039] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. An extraction device with multi-stage filtration, comprising a fixed frame (1), characterized in that: The fixed frame (1) is fixedly connected with a mixing barrel (11), the lower end surface of the mixing barrel (11) is fixedly connected with a conveying pipe (12), the conveying pipe (12) is fixedly connected with a control valve (13), the lower end surface of the conveying pipe (12) is fixedly connected with a filter box (14), one side of the filter box (14) is provided with a mounting groove (15), the mounting groove (15) is movably connected with a U-shaped frame (16), the inner walls of the two sides of the U-shaped frame (16) are provided with a first insertion slot (17), a second insertion slot (18) and a third insertion slot (19). The first insertion slots (17) are movably connected with a first filter plate (20), the second insertion slots (18) are movably connected with a second filter plate (21), and the third insertion slots (19) are movably connected with a third filter plate (22), the filter hole diameters of the first filter plate (20), the second filter plate (21) and the third filter plate (22) are sequentially reduced, one side of the U-shaped frame (16) is fixedly connected with a sealing plate (23), the upper end surface of the filter box (14) is fixedly connected with a positioning frame (24), the positioning frame (24) is fixedly connected with a guide rod (25), the guide rod (25) is fixedly connected with a clamping strip (26), the outer surface of the guide rod (25) is sleeved with a spring (27), and the two ends of the spring (27) are fixedly connected with the clamping strip (26) and the positioning frame (24) respectively.
2. The extraction device with multi-stage filtration according to claim 1, characterized in that: The upper end surface of the mixing barrel (11) is fixedly connected with a driving motor (31), the output end of the driving motor (31) is connected with a rotating rod (32), and the rotating rod (32) is fixedly connected with a plurality of groups of uniformly distributed stirring rods (33) and spiral leaves (34) respectively.
3. The extraction device with multi-stage filtration according to claim 1, characterized in that: The inner walls of the two sides of the filter box (14) are fixedly connected with fixed rods (41), the sides of the two fixed rods (41) are symmetrically provided with connecting grooves (42), the connecting grooves (42) are movably connected with connecting rods (43), and the connecting rods (43) are fixedly connected with the U-shaped frame (16).
4. The extraction device with multi-stage filtration according to claim 1, characterized in that: The same side of the filter box (14) and the sealing plate (23) is provided with a sealing groove (51), the sealing groove (51) is movably connected with a sealing frame (52), and the sealing plate (23) is fixedly connected with a sealing pipe.
5. The extraction device with multi-stage filtration according to claim 1, characterized in that: The side of the filter box (14) in contact with the clamping strip (26) is provided with a limiting groove (61), the limiting groove (61) is slidably connected with a limiting block (62), and the limiting block (62) is fixedly connected with the clamping strip (26).
6. The extraction device with multi-stage filtration according to claim 1, characterized in that: The other side of the filter box (14) is fixedly connected with a suction pipe (71), the side, away from the filter box (14), of the suction pipe (71) is fixedly connected with a conveying pump (72), and the end, away from the suction pipe (71), of the conveying pump (72) is fixedly connected with a recovery pipe (73).
7. The extraction device with multi-stage filtration according to claim 1, characterized in that: The upper end surface of the mixing barrel (11) is fixedly connected with a feeding pipe (81).