Dehydration device with high recovery rate

Abstract

The utility model discloses a high-recovery-rate dehydration device, which belongs to the technical field of centrifugal machines and comprises a support frame. The supporting frame is provided with a circular box body which is provided with a water outlet pipe; the circular box body is provided with a discharge pipe away from the support frame; the circular box body is provided with a feeding pipe; the circular box body is connected with a differential centrifugal dewatering assembly; the differential centrifugal dewatering assembly comprises a differential assembly, a spiral discharging assembly and a centrifugal dewatering assembly, the differential assembly is fixedly connected with the supporting frame, the differential assembly is connected with the spiral discharging assembly and the centrifugal dewatering assembly, the spiral discharging assembly is located on the inner side of the centrifugal dewatering assembly, and the spiral discharging assembly and the centrifugal dewatering assembly are located in the circular box. The discharging end of the feeding pipe is located in the end, close to the supporting frame, of the spiral discharging assembly. The top of the circular box body is connected with a back-flushing unblocking assembly; and the differential assembly is connected with a driving assembly. By means of the mode, high-recovery-rate dehydration can be conveniently carried out; and differential high-recovery-rate dehydration can be realized through a group of driving equipment, so that energy is saved and consumption is reduced.

Description

A high recovery rate dehydration device Technical Field

[0001] This utility model relates to the field of centrifuge technology, specifically to a high recovery rate dehydration device. Background Technology

[0002] Crystalline materials such as copper sulfate require mechanical equipment for dehydration during production.

[0003] For example, Chinese patent CN116351581B describes a high-efficiency horizontal screw discharge filtering centrifuge, comprising a drum, a conveying screw, a concentric dual-shaft mechanism, a feeding mechanism, a discharging mechanism, and a control panel. The drum and the conveying screw are respectively connected to the concentric dual-shaft mechanism, which includes a first concentric shaft, a second concentric shaft, a first variable frequency motor, a second variable frequency motor, and a key phase sensor. The feeding mechanism includes a feeding pipe, a pushing screw, a third variable frequency motor, and a speed sensor. The discharging mechanism includes a discharge channel and a conveyor belt. This invention, by comparing the actual moisture content of the solid phase with the preset moisture content, determines the corresponding adjustment methods for each component in the centrifugation process, thereby better controlling the moisture content of the solid phase and increasing the intelligence of the centrifugation equipment.

[0004] However, the above structure requires two sets of drive structures to achieve differential speed between the drum and the conveying screw. These two sets of drive structures consume a lot of energy, which is not conducive to energy conservation and environmental protection. At the same time, the drum cannot be cleared if it is clogged.

[0005] Based on this, the present invention designs a high recovery rate dehydration device to solve the above problems. Summary of the Invention

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a dehydration device with high recovery rate.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A high-recovery-rate dehydration device includes a support frame;

[0009] A circular box is fixedly connected to one side wall of the support frame, and a water outlet pipe is fixedly connected to the circular box.

[0010] A discharge pipe for discharging material is fixedly connected to the lower side of the end of the circular box away from the support frame;

[0011] A feeding pipe for feeding is fixedly connected to the end of the circular box away from the support frame;

[0012] The circular housing is connected to a differential centrifugal dehydration assembly for centrifugation;

[0013] The differential centrifugal dewatering assembly includes a differential assembly, a screw discharge assembly, and a centrifugal dewatering assembly. The differential assembly is fixedly connected to the support frame and is connected to the screw discharge assembly and the centrifugal dewatering assembly. The screw discharge assembly is located inside the centrifugal dewatering assembly. The screw discharge assembly and the centrifugal dewatering assembly are located inside a circular box. The discharge end of the feeding pipe is located inside the end of the screw discharge assembly near the support frame.

[0014] The top of the circular box is connected to a backflushing unclogging component for unclogging the centrifugal dehydration unit;

[0015] The differential assembly is connected to the drive assembly.

[0016] Furthermore, the differential assembly includes a support cylinder, a horizontal shaft, a first annular plate, a second annular plate, a transmission gear ring, an internal gear ring, a hollow support frame, and an external gear ring. The support cylinder is fixedly connected to the other side wall of the support frame. The end of the support cylinder away from the support frame is rotatably connected to the horizontal shaft through a sealed bearing. The part of the horizontal shaft located inside the support cylinder is fixedly connected to the second annular plate. The side wall of the second annular plate near the support frame is fixedly connected to the hollow support frame. The end of the hollow support frame near the support frame is fixedly connected to the external gear ring. The end of the centrifugal dewatering assembly away from the circular box is fixedly connected to the internal gear ring. The inner wall of the support cylinder is fixedly connected to the first annular plate. The first annular plate rotates circumferentially with a transmission gear ring at equal intervals. The transmission gear ring meshes with the internal gear ring and the external gear ring. The end of the horizontal shaft located inside the circular box is fixedly connected to the spiral discharge assembly. The end of the horizontal shaft away from the support frame is connected to the drive assembly. The internal gear ring is located inside the external gear ring.

[0017] Furthermore, the spiral discharge assembly includes a conical filter cylinder and a horizontal cylinder. The horizontal cylinder is rotatably connected to the support frame via a bearing. An internal gear ring is fixedly installed on the end of the horizontal cylinder away from the circular box. The conical filter cylinder is fixedly connected to the end of the horizontal cylinder inside the circular box.

[0018] Furthermore, the centrifugal dewatering assembly includes a discharge port, an annular baffle, a threaded plate, and a conical cylinder. The conical cylinder is fixedly connected to the end of the horizontal shaft located inside the circular housing. The annular baffle is fixedly connected to the side wall of the conical cylinder near the support frame. The portion of the conical cylinder between the annular baffle and the horizontal shaft has discharge ports at equal intervals along the circumference. The threaded plate is installed at equal intervals along the circumference on the outer wall of the conical cylinder. The outer wall of the conical cylinder is slidably connected to the inner wall of the conical filter cylinder.

[0019] Furthermore, the discharge end of the feeding pipe is located in the horizontal hole opened in the annular partition, and the discharge end of the feeding pipe is coaxial with the horizontal axis.

[0020] Furthermore, an oil inlet pipe is fixedly connected to the top of the support cylinder, and an oil outlet pipe is fixedly connected to the bottom of the support cylinder. Both the oil outlet pipe and the support cylinder are located between the first annular plate and the second annular plate.

[0021] Furthermore, a scraper is fixedly connected circumferentially to the end of the conical cylinder away from the support frame, and the side wall of the scraper is slidably connected to the inner wall of the circular box away from the support frame.

[0022] Furthermore, the backwashing and unclogging assembly includes an inlet pipe, a linear drive assembly, a slide pipe, and an inclined water outlet cover. The linear drive assembly and the inlet pipe are fixedly connected to the top of the circular housing, and the inclined water outlet cover, which is adapted to the outer wall of the conical filter cartridge, is fixedly connected to the bottom of the drive end of the linear drive assembly. The slide pipe is fixedly connected to the inclined water outlet cover, and the upper outer wall of the slide pipe is slidably connected to the inner wall of the inlet pipe.

[0023] Beneficial effects

[0024] This utility model's drive assembly drives the differential component of the differential centrifugal dewatering assembly to rotate. The differential component drives the screw discharge assembly and the centrifugal dewatering assembly to rotate at different speeds. The feeding pipe adds material into the screw discharge assembly, and the rotating screw discharge assembly throws the material into the centrifugal assembly. The rotating centrifugal dewatering assembly then performs centrifugal dewatering. Because the screw discharge assembly and the centrifugal dewatering assembly rotate at different speeds, the screw discharge assembly can scrape the dewatered material from the inner wall of the centrifugal dewatering assembly. Water is discharged through the water outlet pipe, and the dewatered material is discharged from the discharge pipe, facilitating high-recovery-rate dewatering. Moreover, differential high-recovery-rate dewatering can be achieved with just one drive device, saving energy and reducing consumption. In addition, after dewatering, the backflushing and unclogging assembly moves to contact the centrifugal dewatering assembly. High-pressure water is added to the backflushing and unclogging assembly, and the high-pressure water backflushes the centrifugal dewatering assembly, flushing away the material inside the centrifugal dewatering assembly holes, which is beneficial for unclogging the centrifugal dewatering assembly. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 is a perspective view of the main structure of a high-recovery-rate dehydration device according to this utility model.

[0027] Figure 2 is a front view of the structure of a high-recovery-rate dehydration device according to this utility model;

[0028] Figure 3 is a left view of the structure of a high-recovery-rate dehydration device according to this utility model;

[0029] Figure 4 is a perspective view of the main structure of a high-recovery-rate dehydration device according to this utility model.

[0030] Figure 5 is a three-dimensional view of the main structure of a high-recovery-rate dehydration device according to this utility model.

[0031] Figure 6 is a cross-sectional view along the AA direction in Figure 3;

[0032] Figure 7 is an enlarged view of the structure at point B in Figure 6.

[0033] The labels in the diagram represent:

[0034] 1. Support frame 2. Differential centrifugal dewatering assembly 21. Oil outlet pipe 22. Support cylinder 23. Oil inlet pipe 24. Horizontal shaft 25. Conical filter cylinder 26. Discharge hole 27. Horizontal cylinder 28. Annular partition 29. First annular plate 210. Second annular plate 211. Transmission gear ring 212. Inner gear ring 213. Hollow support frame 214. Outer gear ring 215. Threaded plate 216. Conical cylinder 3. Drive assembly 31. Motor 32. First pulley 33. Belt 34. Second pulley 4. Backflushing and unclogging assembly 41. Water inlet pipe 42. Linear drive assembly 43. Sliding pipe 44. Inclined water outlet cover 5. Discharge pipe 6. Circular box 7. Feeding pipe 8. Scraper 9. Water outlet pipe. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0036] The present invention will be further described below with reference to the embodiments.

[0037] Example 1

[0038] Please refer to Figures 1-7 in the instruction manual. A high-recovery-rate dehydration device includes a support frame 1.

[0039] A circular box 6 is fixedly connected to one side wall of the support frame 1, and a water outlet pipe 9 is fixedly connected to the circular box 6.

[0040] A discharge pipe 5 for discharging material is fixedly connected to the lower side of the end of the circular box 6 away from the support frame 1;

[0041] A feeding pipe 7 for feeding is fixedly connected to the end of the circular box 6 away from the support frame 1;

[0042] The circular housing 6 is connected to a differential centrifugal dehydration assembly 2 for centrifugation;

[0043] The differential centrifugal dewatering assembly 2 includes a differential assembly, a screw discharge assembly, and a centrifugal dewatering assembly. The differential assembly is fixedly connected to the support frame 1 and is connected to the screw discharge assembly and the centrifugal dewatering assembly. The screw discharge assembly is located inside the centrifugal dewatering assembly. The screw discharge assembly and the centrifugal dewatering assembly are located inside the circular box 6. The discharge end of the feeding pipe 7 is located inside the end of the screw discharge assembly near the support frame 1.

[0044] The top of the circular box 6 is connected to a backflushing unclogging component 4 for unclogging the centrifugal dehydration component;

[0045] The differential assembly is connected to drive assembly 3;

[0046] Drive component 3 drives the differential component of differential centrifugal dewatering component 2 to rotate. The differential component drives the screw discharge component and the centrifugal dewatering component to rotate at different speeds. The feeding pipe 7 adds material into the screw discharge component. The rotating screw discharge component throws the material into the centrifugal component. The rotating centrifugal dewatering component performs centrifugal dewatering. Since the screw discharge component and the centrifugal dewatering component rotate at different speeds, the screw discharge component can scrape the dewatered material from the inner wall of the centrifugal dewatering component. Water is discharged through the water outlet pipe 9, and the dewatered material is discharged from the discharge pipe 5, which facilitates high recovery rate dewatering. Moreover, differential high recovery rate dewatering can be achieved with one set of drive equipment, saving energy and reducing consumption. In addition, after dewatering, the backflushing and unclogging component 4 moves to contact the centrifugal dewatering component. High-pressure water is added into the backflushing and unclogging component 4. The high-pressure water backflushes the centrifugal dewatering component, flushing away the material in the holes of the centrifugal dewatering component, which is conducive to unclogging the centrifugal dewatering component.

[0047] The differential assembly includes a support cylinder 22, a transverse shaft 24, a first annular plate 29, a second annular plate 210, a transmission gear ring 211, an internal gear ring 212, a hollow support frame 213, and an external gear ring 214. The support cylinder 22 is fixedly connected to the other side wall of the support frame 1. The end of the support cylinder 22 away from the support frame 1 is rotatably connected to the transverse shaft 24 via a sealed bearing. The portion of the transverse shaft 24 located inside the support cylinder 22 is fixedly connected to the second annular plate 210. The hollow support frame 213 is fixedly connected to the side wall of the second annular plate 210 near the support frame 1. An outer gear ring 214 is fixedly connected to the end near the support frame 1. An inner gear ring 212 is fixedly connected to the end of the centrifugal dewatering assembly away from the circular box 6. A first annular plate 29 is fixedly connected to the inner wall of the support cylinder 22. A transmission gear ring 211 rotates at equal intervals along the circumference of the first annular plate 29. The transmission gear ring 211 meshes with the inner gear ring 212 and the outer gear ring 214. The end of the horizontal shaft 24 located inside the circular box 6 is fixedly connected to the spiral discharge assembly. The end of the horizontal shaft 24 away from the support frame 1 is connected to the drive assembly 3. The inner gear ring 212 is located inside the outer gear ring 214.

[0048] The first annular plate 29 is located between the second annular plate 210 and the support frame 1;

[0049] The side wall of the second annular plate 210 is connected to the inner wall of the support cylinder 22 by a sealing ring;

[0050] The spiral discharge assembly includes a conical filter cylinder 25 and a horizontal cylinder 27. The horizontal cylinder 27 is rotatably connected to the support frame 1 via a bearing. An internal gear ring 212 is fixedly installed on the end of the horizontal cylinder 27 away from the circular box 6. The end of the horizontal cylinder 27 located inside the circular box 6 is fixedly connected to the conical filter cylinder 25.

[0051] The inner wall of the end of the internal gear ring 212 away from the circular housing 6 is slidably connected to the outer wall of the horizontal shaft 24 through a sealing ring.

[0052] The centrifugal dewatering assembly includes a discharge hole 26, an annular partition 28, a threaded plate 215, and a conical cylinder 216. The end of the horizontal shaft 24 located inside the circular housing 6 is fixedly connected to the conical cylinder 216. The annular partition 28 is fixedly connected to the side wall of the conical cylinder 216 near the support frame 1. The portion of the conical cylinder 216 located between the annular partition 28 and the horizontal shaft 24 has discharge holes 26 at equal intervals along the circumference. The threaded plate 215 is installed at equal intervals along the circumference on the outer wall of the conical cylinder 216. The outer wall of the conical cylinder 216 is slidably connected to the inner wall of the conical filter cylinder 25.

[0053] The discharge end of the feeding pipe 7 is located in the horizontal hole opened in the annular partition 28, and the discharge end of the feeding pipe 7 is coaxial with the horizontal axis 24.

[0054] The drive assembly 3 drives the horizontal shaft 24 of the differential centrifugal dewatering assembly 2 to rotate. The horizontal shaft 24 drives the second annular plate 210 to rotate, which in turn drives the outer gear ring 214 to rotate. The outer gear ring 214 drives the transmission gear ring 211 to rotate, which in turn drives the inner gear ring 212 to rotate. The inner gear ring 212 drives the horizontal cylinder 27 of the centrifugal dewatering assembly to rotate, which in turn drives the conical filter cylinder 25 to rotate. The horizontal shaft 24 drives the conical cylinder 216 to rotate. Because the size of the inner gear ring 212 is smaller than that of the outer gear ring 214, the rotational speed of the inner gear ring 212 is greater than that of the outer gear ring 214, and thus the rotational speed of the conical filter cylinder 25 is greater than that of the conical cylinder 216. The centrifugal dewatering assembly achieves high-speed differential rotation between the conical filter cartridge 25 and the conical cylinder 216. The feeding pipe 7 adds material into the chamber formed between the annular partition 28 and the conical cylinder 216. The rotating conical cylinder 216 throws the material through the discharge hole 26 into the conical filter cartridge 25 of the centrifugal assembly. The rotating conical filter cartridge 25 of the centrifugal dewatering assembly performs centrifugal dewatering. Since the conical filter cartridge 25 and the conical cylinder 216 can scrape the dewatered material from the inner wall of the conical filter cartridge 25 by the rotating threaded plate 215, the water is discharged through the water outlet pipe 9, and the dewatered material is discharged from the discharge pipe 5, which facilitates high-recovery dewatering. Moreover, differential high-recovery dewatering can be achieved through a set of drive equipment, saving energy and reducing consumption.

[0055] An oil inlet pipe 23 is fixedly connected to the top of the support cylinder 22, and an oil outlet pipe 21 is fixedly connected to the bottom of the support cylinder 22. Both the oil outlet pipe 21 and the support cylinder 22 are located between the first annular plate 29 and the second annular plate 210.

[0056] The oil inlet pipe 23 is connected to the output end of the external lubricating oil cooling device, and the oil outlet pipe 21 is connected to the input end of the external lubricating oil cooling device.

[0057] The external lubricating oil cooling device adds cooled lubricating oil into the support cylinder 22 through the oil inlet pipe 23. The hollow support frame 213 provides a flow channel, which helps the lubricating oil flow in the first annular plate 29 and the second annular plate 210, which helps to lubricate the transmission gear ring 211, the inner gear ring 212 and the outer gear ring 214. At the same time, it can cool down the transmission gear ring 211, the inner gear ring 212 and the outer gear ring 214, extending their service life. The lubricating oil after use returns to the external lubricating oil cooling device through the oil outlet pipe 21 for reuse.

[0058] A scraper 8 is fixedly connected circumferentially to the end of the conical cylinder 216 away from the support frame 1. The side wall of the scraper 8 is slidably connected to the inner wall of the circular box 6 away from the support frame 1.

[0059] When the conical cylinder 216 rotates, it drives the scraper 8 to rotate. The scraper 8 scrapes the material on the inner wall of the circular box 6, reducing the material from sticking to the inner wall of the circular box 6 and providing the power for the material to be discharged from the discharge pipe 5, which is conducive to the discharge of the material.

[0060] The backwashing and unclogging assembly 4 includes an inlet pipe 41, a linear drive assembly 42, a slide pipe 43, and an inclined water outlet cover 44. The linear drive assembly 42 and the inlet pipe 41 are fixedly connected to the top of the circular housing 6. The inclined water outlet cover 44, which is adapted to the outer wall of the conical filter cartridge 25, is fixedly connected to the bottom of the drive end of the linear drive assembly 42. The slide pipe 43 is fixedly connected to the inclined water outlet cover 44. The upper outer wall of the slide pipe 43 is slidably connected to the inner wall of the inlet pipe 41.

[0061] The inlet pipe 41 is connected to an external high-pressure water source.

[0062] When it is necessary to clear the blockage of the conical filter cartridge 25, the conical filter cartridge 25 continues to rotate, and the linear drive assembly 42 drives the inclined water outlet cover 44 to move downward until it contacts the outer wall of the conical filter cartridge 25. High-pressure water enters the slide tube 43 through the water inlet pipe 41, and then enters the inclined water outlet cover 44. The high-pressure water rushes towards the conical cylinder 216 through the filter holes of the conical filter cartridge 25 to clear the blockage of the conical filter cartridge 25.

[0063] The drive assembly 3 includes a motor 31, a first pulley 32, a belt 33, and a second pulley 34. The first pulley 32 is fixedly connected to the drive end of the motor 31. The belt 33 is rotatably connected to the first pulley 32, and the second pulley 34 is rotatably connected to the belt 33. The horizontal shaft 24 is fixedly installed in the mounting hole of the second pulley 34.

[0064] The motor 31 drives the first pulley 32 to rotate, and the first pulley 32 drives the second pulley 34 to rotate via the belt 33. The second pulley 34 drives the horizontal shaft 24 to rotate, providing power to the horizontal shaft 24.

[0065] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A high-recovery-rate dehydration device, comprising a support frame (1), characterized in that: A circular box (6) is fixedly connected to one side wall of the support frame (1), and a water outlet pipe (9) is fixedly connected to the circular box (6); a discharge pipe (5) for discharging material is fixedly connected to the lower side of the end of the circular box (6) away from the support frame (1); a feeding pipe (7) for feeding material is fixedly connected to the end of the circular box (6) away from the support frame (1); a differential centrifugal dewatering assembly (2) for centrifugation is connected to the circular box (6); the differential centrifugal dewatering assembly (2) includes a differential assembly and a spiral discharge assembly. The centrifugal dewatering component, the differential component and the support frame (1) are fixedly connected. The differential component is connected to the screw discharge component and the centrifugal dewatering component. The screw discharge component is located inside the centrifugal dewatering component. The screw discharge component and the centrifugal dewatering component are located inside the circular box (6). The discharge end of the feeding pipe (7) is located inside the end of the screw discharge component near the support frame (1). The top of the circular box (6) is connected to a backflushing unblocking component (4) for unblocking the centrifugal dewatering component. The differential component is connected to a drive component (3).

2. The high recovery rate dehydration device according to claim 1, characterized in that, The differential assembly includes a support cylinder (22), a transverse shaft (24), a first annular plate (29), a second annular plate (210), a transmission gear ring (211), an internal gear ring (212), a hollow support frame (213), and an external gear ring (214). The support cylinder (22) is fixedly connected to the other side wall of the support frame (1). The end of the support cylinder (22) away from the support frame (1) is rotatably connected to the transverse shaft (24) through a sealed bearing. The part of the transverse shaft (24) located inside the support cylinder (22) is fixedly connected to the second annular plate (210). The side wall of the second annular plate (210) near the support frame (1) is fixedly connected to the hollow support frame (213). An external gear ring (214) is fixedly connected to the end near the support frame (1), and an internal gear ring (212) is fixedly connected to the end of the centrifugal dewatering assembly away from the circular box (6). A first annular plate (29) is fixedly connected to the inner wall of the support cylinder (22). A transmission gear ring (211) rotates at equal intervals along the circumference of the first annular plate (29). The transmission gear ring (211) meshes with the internal gear ring (212) and the external gear ring (214). The end of the horizontal shaft (24) located inside the circular box (6) is fixedly connected to the spiral discharge assembly. The end of the horizontal shaft (24) away from the support frame (1) is connected to the drive assembly (3). The internal gear ring (212) is located inside the external gear ring (214).

3. The high recovery rate dehydration device according to claim 2, characterized in that, The spiral discharge assembly includes a conical filter cylinder (25) and a horizontal cylinder (27). The horizontal cylinder (27) is rotatably connected to the support frame (1) via a bearing. An internal gear ring (212) is fixedly installed on the end of the horizontal cylinder (27) away from the circular box (6). The end of the horizontal cylinder (27) located inside the circular box (6) is fixedly connected to the conical filter cylinder (25).

4. The high recovery rate dehydration device according to claim 3, characterized in that, The centrifugal dewatering assembly includes a discharge hole (26), an annular partition (28), a threaded plate (215), and a conical cylinder (216). The end of the horizontal shaft (24) located inside the circular box (6) is fixedly connected to the conical cylinder (216). The side wall of the conical cylinder (216) near the support frame (1) is fixedly connected to the annular partition (28). The part of the conical cylinder (216) between the annular partition (28) and the horizontal shaft (24) has discharge holes (26) at equal intervals along the circumference. The threaded plate (215) is installed at equal intervals along the circumference on the outer wall of the conical cylinder (216). The outer wall of the conical cylinder (216) is in close contact with the inner wall of the conical filter cylinder (25).

5. The high recovery rate dehydration device according to claim 4, characterized in that, The discharge end of the feeding pipe (7) is located in the horizontal hole opened in the annular partition (28), and the discharge end of the feeding pipe (7) is coaxial with the horizontal axis (24).

6. The high-recovery-rate dehydration apparatus according to any one of claims 2-5, characterized in that, The top of the support cylinder (22) is fixedly connected to an oil inlet pipe (23), and the bottom of the support cylinder (22) is fixedly connected to an oil outlet pipe (21). The oil outlet pipe (21) and the support cylinder (22) are both located between the first annular plate (29) and the second annular plate (210).

7. The high recovery rate dehydration device according to claim 6, characterized in that, A scraper (8) is fixedly connected circumferentially to the end of the conical cylinder (216) away from the support frame (1). The side wall of the scraper (8) is slidably connected to the inner wall of the circular box (6) away from the support frame (1).

8. The high-recovery-rate dehydration apparatus according to any one of claims 1-7, characterized in that, The backwash cleaning assembly (4) includes an inlet pipe (41), a linear drive assembly (42), a slide pipe (43), and an inclined water outlet cover (44). The top of the circular box (6) is fixedly connected to the linear drive assembly (42) and the inlet pipe (41). The bottom of the drive end of the linear drive assembly (42) is fixedly connected to the inclined water outlet cover (44) which is adapted to the outer wall of the conical filter cartridge (25). The slide pipe (43) is fixedly connected to the inclined water outlet cover (44). The upper outer wall of the slide pipe (43) is slidably connected to the inner wall of the inlet pipe (41).

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