Filtering device for preparing engine oil repairing liquid and preparation method

Abstract

The application discloses a filtering device for preparing machine oil repairing liquid and a preparation method, relates to the technical field of machine oil repairing liquid preparation, and comprises a frame seat, a centrifugal tank, a transfer disc and a collecting hopper box, further comprises a centrifugal assembly, a filter pressing assembly and a suction filtration assembly; the centrifugal assembly comprises a centrifugal hopper rotatably installed at the top center of the centrifugal tank, and a pair of arc-shaped filter plates is detachably and fixedly installed at the bottom end of the centrifugal hopper; the application can effectively improve the filtering efficiency of materials by using the action of air pressure; the machine oil repairing liquid uses 93wt% base oil, 6wt% nano molybdenum and 1wt% carbon nanotube as raw materials, is put into a stirring equipment for stirring operation; the stirring is performed at a temperature of 190-200 DEG C for 30-40 min; after the stirring is completed and cooling, the materials are put into the centrifugal hopper in the filtering device, the centrifugal assembly, the filter pressing assembly and the suction filtration assembly are used to remove impurities in the materials, and finally the machine oil repairing liquid is obtained.

Description

Technical Field

[0001] This invention relates to the field of engine oil repair fluid preparation technology, and in particular to a filtration device and preparation method for engine oil repair fluid preparation. Background Technology

[0002] In the preparation process of engine oil restoration fluid, filtration is a core step to ensure product purity and performance stability. Engine oil restoration fluid typically consists of base oil, functional additives, and repair microparticles. Its preparation requires solid-liquid separation technology to remove impurities, unreacted particles, or agglomerates from the raw materials to prevent equipment wear or performance degradation in subsequent processes. However, due to the presence of high-viscosity base oils and micron-sized repair particles in the formulation, the mixture exhibits significantly high viscosity, posing multiple challenges to traditional filtration technologies in terms of efficiency, accuracy, and sustainability.

[0003] Currently, the most commonly used filtration devices in the industry include centrifugal separators, plate and frame filter presses, and vibrating screens. Although these technologies are well-suited for low-viscosity liquids, they have certain drawbacks when processing highly viscous materials: on the one hand, the poor flowability of the material easily forms a retention layer on the surface of the filter media, hindering effective filtration and requiring high pressure differential drive, which significantly increases energy consumption; on the other hand, tiny particles in viscous media easily embed into the pores of the filter element, causing rapid clogging of the filter element, requiring a long downtime for cleaning or replacement, which seriously affects production continuity.

[0004] To address filter cartridge clogging, existing technologies primarily rely on adding backwashing systems or mechanical scraping devices to slow the clogging process, but these solutions still have significant limitations. Backwashing technology requires an additional storage tank and high-pressure pump unit, has limited effectiveness for high-viscosity liquids, and may affect product composition uniformity due to residual flushing fluid. While mechanical scraping devices can remove surface deposits from the filter cartridge, they cannot solve the problem of deep pore clogging. Furthermore, manual replacement is still required when the filter cartridge reaches its lifespan limit, lacking an intelligent switching mechanism.

[0005] In summary, traditional solid-liquid separation methods are not compatible with the rheological properties of viscous materials, resulting in low filtration efficiency and high energy consumption. Secondly, the lack of real-time monitoring and automatic replacement mechanisms for filter element clogging leads to high reliance on manual labor, which restricts production efficiency. Summary of the Invention

[0006] The purpose of this invention is to provide a filtration device and preparation method for preparing engine oil repair fluid, so as to solve the problems mentioned in the background art.

[0007] The technical solution of the present invention is: a filtration device for preparing engine oil repair fluid, comprising a frame base, a centrifuge tank, a transfer tray and a collection hopper, and further comprising a centrifugation assembly, a pressure filtration assembly and a vacuum filtration assembly;

[0008] The centrifugal assembly includes a centrifugal bucket rotatably mounted at the center of the top of the centrifugal tank. A pair of arc-shaped filter plates are detachably and fixedly mounted at the bottom of the centrifugal bucket. The centrifugal tank has an integrated internal bucket end, and an integrated end cylinder is provided at the axis of the internal bucket end. Multiple equidistant oblique support openings are provided near the bottom of the end cylinder.

[0009] The filter press assembly includes a collar rotatably mounted on the end cylinder, and a pair of connecting ribs are fixed on the outer peripheral wall of the collar. Each end of the connecting ribs is fixed with a folded scraper. A transmission plumb line is provided at the axis of the centrifugal bucket, and a cylindrical tube adapted to the collar is fixed at the bottom end of the transmission plumb line. A spiral guide groove is provided on the inner peripheral wall of the collar, and a spiral protrusion is provided on the outer peripheral wall of the cylindrical tube to slide with the spiral guide groove.

[0010] A bottom pressure plate is provided at the bottom end of the cylindrical tube, and an elastic membrane end is fixedly connected between the bottom pressure plate and the cylindrical tube. An annular end block is fixed at the bottom end of the cylindrical tube, and an annular plate coaxially arranged with the annular end block is fixed on the bottom pressure plate. The annular plate and the annular end block are provided with a snap-fit ​​mechanism, and a pressure sensor is fixed on the bottom pressure plate.

[0011] Preferably, the annular plate has evenly distributed guide holes, the bottom end of the cylindrical tube is fixedly installed with multiple guide rods that slide with the guide holes, and a connecting spring is fixed between the guide rods and the guide holes. The signal output end of the pressure sensor is electrically connected to an external controller. The top of the centrifuge tank is fixedly installed with a rotary motor, and the output shaft of the rotary motor is fixedly installed with a driving conical tooth. The outer wall of the centrifuge bucket is fixedly installed with a driven conical tooth that meshes with the driving conical tooth. The locking mechanism includes multiple receiving ports opened on the outer peripheral wall of the annular end block, and each receiving port is slidably installed with an arc-head locking block. A compression spring is fixedly connected between the arc-head locking block and the receiving port. The inner peripheral wall of the annular plate has multiple arc-shaped locking grooves that are adapted to the arc-head locking blocks.

[0012] Preferably, a central shaft is rotatably mounted between the centrifuge tank and the collection hopper, and a frame rib is fixed between the outer peripheral wall of the central shaft and the inner peripheral wall of the transfer tray. The transfer tray has multiple equally spaced mounting holes, and a filter element can be detachably and fixedly installed in each mounting hole. A diverter plate is threadedly connected to the center of the bottom of the centrifuge tank. When the diverter plate, the filter element, and the collection hopper are in a coaxial position, they are interconnected. A discharge valve is installed at the bottom of the collection hopper.

[0013] Preferably, a worm gear is fixed on the outer peripheral wall of the central shaft, a bracket is fixed on the frame, and a stepper motor is fixed on the bracket. The output shaft of the stepper motor is fixedly connected to a worm, the worm and the worm gear mesh with each other, and the helix angle between the worm and the worm gear is less than the friction angle. The stepper motor is electrically connected to an external controller.

[0014] Preferably, a pair of supporting side frames are fixed between the outer peripheral wall of the centrifuge tank and the frame base, and a pair of supporting side frames are fixed between the collection hopper and the frame base.

[0015] Preferably, a pair of electric telescopic rods are fixed to the top of the centrifuge tank, and a top cover is fixedly installed on the top of the two electric telescopic rods together, and the top cover can rotate with the centrifuge tank.

[0016] Preferably, a transmission column is provided on one side of the centrifuge tank, and a crossbeam is fixed to the top of the transmission column. A transmission plumb line is fixed to the other end of the crossbeam line, and the bottom end of the transmission plumb line is fixedly connected to the top of the cylindrical tube.

[0017] Preferably, a pair of L-shaped end pipes are fixedly connected to the top of the collection hopper, and a one-way air valve is fixedly installed on each L-shaped end pipe. A U-shaped abutment is slidably connected inside the two L-shaped end pipes. A hydraulic rod is fixedly connected between the middle end of the U-shaped abutment and the frame seat. The top of the U-shaped abutment is fixedly connected to the bottom end of the transmission column.

[0018] Preferably, each of the L-shaped end pipes is fixedly connected to one side of a gas supply pipe, and a one-way gas outlet valve is fixedly installed on each gas supply pipe. Corrugated hoses are fixedly connected between the ends of the two gas supply pipes and the top cover, and a clamp is fixedly connected between the two gas supply pipes and the centrifuge tank.

[0019] This invention also provides a method for preparing engine oil repair fluid, the method comprising the following steps:

[0020] S1. Using 93wt% base oil, 6wt% nano-molybdenum, and 1wt% carbon nanotubes as raw materials, the mixture is put into a mixing device for mixing.

[0021] S2. Stir at 190℃-200℃ for 30-40 minutes;

[0022] S3. After stirring is completed and the mixture has cooled, the material is put into the centrifuge hopper of the above-mentioned filtration device. The centrifugal component, pressure filter component and suction filter component are used to centrifuge, filter and remove impurities from the material in sequence to finally obtain the engine oil repair fluid.

[0023] The present invention provides an improved filtration device and preparation method for preparing engine oil repair fluid, which, compared with the prior art, has the following improvements and advantages:

[0024] Firstly, this invention utilizes a centrifugal hopper that, when rotating rapidly, works in conjunction with an arc-shaped filter plate to achieve preliminary centrifugal separation of materials. When the cylindrical cylinder moves downwards, the bottom pressure plate applies pressure to the material in the inner hopper, thereby working with the diversion plate and filter element directly below to achieve pressure filtration of the material.

[0025] Secondly, when the filter element gradually becomes clogged after prolonged filtration, the reaction force generated by the bottom pressure plate during the filtration process gradually increases until the reaction force exceeds the supporting force. At this point, the arc head block will disengage from the arc-shaped groove. The pressure sensor will then contact the end face of the annular end block and generate a pressure signal. When the external controller receives the pressure signal, it will control the start of the stepper motor. Through the transmission action of the worm gear and worm wheel, the central shaft and frame ribs will drive the transfer plate to rotate, thereby rotating the adjacent filter element to the bottom of the distribution plate, thus realizing the automatic replacement of the filter element.

[0026] Thirdly, this invention utilizes the operation of a hydraulic rod, which, in conjunction with the transmission column and crossbeam, drives the transmission plumb bob and cylindrical tube to move vertically. Simultaneously, when the hydraulic rod extends, it pushes the U-shaped abutment upwards, creating negative pressure in conjunction with the L-shaped end pipe. This draws air out of the collection hopper, creating a negative pressure state within the hopper, which, in conjunction with the filter element, forms a filtration effect, improving filtration efficiency. When the hydraulic rod retracts, it forces the air from the L-shaped end pipe through a one-way air outlet valve into the air delivery pipe, and then through a corrugated hose to the centrifuge hopper, increasing the internal air pressure and promoting the material's passage through the arc-shaped filter plate, thereby further improving the initial separation efficiency. Attached Figure Description

[0027] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is a first-view perspective three-dimensional structural diagram of the present invention;

[0029] Figure 2 This is a schematic diagram of the overall second-view three-dimensional structure of the present invention;

[0030] Figure 3 This is a three-dimensional structural diagram of the centrifuge tank and collection hopper of the present invention;

[0031] Figure 4 This is a schematic diagram of the cross-sectional structure of the transfer disk of the present invention;

[0032] Figure 5 This is a schematic diagram of the internal structure of the centrifuge tank of the present invention;

[0033] Figure 6 For the present invention Figure 5 Enlarged structural diagram at point A in the middle;

[0034] Figure 7 For the present invention Figure 5 Enlarged structural diagram at point B;

[0035] Figure 8 This is a schematic diagram of the cross-sectional structure of the built-in bucket end of the present invention;

[0036] Figure 9 For the present invention Figure 8 Enlarged structural diagram at point C;

[0037] Figure 10 This is a schematic diagram of the three-dimensional structure of the gas pipeline and U-shaped support frame of the present invention;

[0038] Figure 11 This is a schematic diagram of the three-dimensional structure of the cylindrical tube and the folded scraper of the present invention.

[0039] Figure label:

[0040] 1. Frame base; 2. Centrifuge tank; 201. Built-in hopper end; 3. Centrifuge hopper; 301. Driven conical gear; 302. Rotary motor; 303. Driven conical gear; 304. Arc-shaped filter plate; 4. Hydraulic rod; 5. Collection hopper box; 501. Discharge valve; 6. Transfer tray; 601. Filter element; 602. Central shaft; 603. Frame rib; 7. Support side frame one; 701. Support side frame two; 8. Cylindrical cylinder; 801. End cylinder; 802. Inclined support port; 803. Collar; 804. Connecting rib; 805. Spiral rib; 806. Spiral guide groove; 807. Folded scraper; 9. Diverter plate; 10. Annular end 11. Block; 12. Ring plate; 13. Arc-shaped groove; 14. Guide hole; 15. Guide rod; 16. Pressure sensor; 17. Arc-shaped head block; 18. Compression spring; 19. Elastic diaphragm end; 10. Bottom pressure plate; 11. Stepper motor; 12. Worm gear; 13. Worm wheel; 14. Bracket; 15. Top cover; 16. Electric telescopic rod; 27. L-shaped end pipe; 28. One-way air outlet valve; 29. ​​Hoop; 20. Air supply pipe; 21. Corrugated hose; 22. One-way air outlet valve; 23. U-shaped support frame; 24. Transmission column rod; 25. Crossbeam rod; 26. Transmission plumb rod; 27. Connecting spring. Detailed Implementation

[0041] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] This invention provides an improved filtration device and preparation method for preparing engine oil repair fluid. The technical solution of this invention is as follows:

[0043] like Figures 1 to 11 As shown, this embodiment of the invention provides a filtration device for preparing engine oil repair fluid, including a frame base 1, a centrifuge tank 2, a transfer tray 6, and a collection hopper 5, and also includes a centrifugation assembly, a pressure filtration assembly, and a vacuum filtration assembly;

[0044] The centrifugal assembly includes a centrifugal bucket 3 rotatably mounted at the center of the top of the centrifugal tank 2. A pair of arc-shaped filter plates 304 are detachably and fixedly mounted at the bottom of the centrifugal bucket 3. With this configuration, an inspection door (not shown in the figure) can be installed on the centrifugal tank 2, which allows for quick disassembly of the arc-shaped filter plates 304 for easy maintenance and replacement. The centrifugal tank 2 has an integrated built-in bucket end 201 inside, and an integrated end cylinder 801 is located at the axis of the built-in bucket end 201. The end cylinder 801 has multiple equally spaced inclined support ports 802 near the bottom. Through the above structure, the centrifugal bucket 3, when rotating rapidly, can cooperate with the arc-shaped filter plates 304 to achieve preliminary centrifugal separation of materials. The separated materials will gradually converge towards the multiple inclined support ports 802 under the guidance of the built-in bucket end 201.

[0045] The filter press assembly includes a collar 803 rotatably mounted on the end cylinder 801, and a pair of connecting ribs 804 fixed on the outer peripheral wall of the collar 803. Each end of the connecting ribs 804 is fixed with a folded scraper 807. A transmission vertical rod 27 is provided at the axis of the centrifugal hopper 3, and a cylindrical cylinder 8 adapted to the collar 803 is fixed at the bottom end of the transmission vertical rod 27. A spiral guide groove 806 is provided on the inner peripheral wall of the collar 803, and a groove corresponding to the spiral guide groove 806 is provided on the outer peripheral wall of the cylindrical cylinder 8. The sliding fit of the spiral rib 805 should be noted. The friction angle between the spiral rib 805 and the spiral guide groove 806 is less than the helix angle. This allows the cylindrical cylinder 8 to rotate the collar 803 under the action of the spiral rib 805 and the spiral guide groove 806 when it moves vertically. The collar 803 can then drive the folded scraper 807 to scrape the inner wall of the centrifugal bucket 3 through the connecting rib 804, so as to promote the material to converge at the inclined support 802.

[0046] A bottom pressure plate 17 is provided at the bottom end of the cylindrical cylinder 8, and an elastic membrane end 16 is fixedly connected between the bottom pressure plate 17 and the cylindrical cylinder 8. An annular end block 10 is fixed at the bottom end of the cylindrical cylinder 8. An annular plate 11 is fixed on the bottom pressure plate 17 and is coaxially arranged with the annular end block 10. The annular plate 11 and the annular end block 10 are provided with a snap-fit ​​mechanism. A pressure sensor 14 is fixed on the bottom pressure plate 17. With the above structure, when the cylindrical cylinder 8 moves downward, the bottom pressure plate 17 can apply pressure to the material in the built-in bucket end 201, thereby cooperating with the diversion plate 9 and the filter element 601 directly below to achieve the pressure filtration treatment of the material.

[0047] Furthermore, the annular plate 11 has evenly distributed guide holes 12. Multiple guide rods 13 are fixedly installed at the bottom of the cylindrical tube 8, slidingly engaging with the guide holes 12. A connecting spring 28 is fixed between the guide rods 13 and the guide holes 12. The signal output terminal of the pressure sensor 14 is electrically connected to an external controller. A rotary motor 302 is fixedly installed at the top of the centrifuge tank 2, and a drive conical gear 303 is fixedly installed on the output shaft of the rotary motor 302. A driven conical gear 301 that meshes with the drive conical gear 303 is fixedly installed on the outer wall of the centrifuge bucket 3. The locking mechanism includes multiple openings on the annular end block 1. The outer peripheral wall of the ring plate 11 has a receiving port, and each receiving port has a sliding arc head locking block 15. A compression spring 151 is fixedly connected between the arc head locking block 15 and the receiving port. Multiple arc-shaped locking grooves 111 adapted to the arc head locking blocks 15 are opened on the inner peripheral wall of the ring plate 11. Through the above structure, the starting rotary motor 302 can be controlled to drive the centrifugal bucket 3 to rotate rapidly through the transmission action of the driving conical teeth 303 and the driven conical teeth 301, so as to realize the centrifugal operation. The arc-shaped locking grooves 111 are engaged with the arc head locking blocks 15, and the connecting spring 28 provided in cooperation applies a supporting force to the bottom pressure plate 17 for filter pressing.

[0048] Furthermore, a central shaft 602 is rotatably installed between the centrifuge tank 2 and the collection hopper 5, and a frame rib 603 is fixed between the outer peripheral wall of the central shaft 602 and the inner peripheral wall of the transfer plate 6. The transfer plate 6 has multiple equally spaced installation ports, and a filter element 601 can be detachably and fixedly installed in each installation port. A diversion plate 9 is threadedly connected to the center of the bottom end of the centrifuge tank 2. The diversion plate 9 allows the material to flow more evenly to the filter element 601. When the diversion plate 9, the filter element 601, and the collection hopper 5 are in a coaxial position, they are interconnected. A discharge valve 501 is installed at the bottom end of the collection hopper 5.

[0049] As a further embodiment of the present invention, such as Figures 3-4As shown, a worm gear 182 is fixed on the outer peripheral wall of the central shaft 602, a bracket 183 is fixed on the frame 1, and a stepper motor 18 is fixed on the bracket 183. The output shaft of the stepper motor 18 is fixedly connected to a worm 181, which meshes with the worm gear 182. The helix angle between the worm gear 181 and the worm gear 182 is less than the friction angle. The stepper motor 18 is electrically connected to an external controller. With the above structure, when the filter element 601 gradually becomes clogged after long-term filtration, the bottom pressure plate 17 generates a back pressure during the filtration process. As the force is gradually increased until the reaction force exceeds the supporting force, the arc head locking block 15 will disengage from the arc-shaped locking groove 111. At this time, the pressure sensor 14 will come into contact with the end face of the annular end block 10 and generate a pressure signal. When the external controller receives the pressure signal, it will control the start of the stepper motor 18, and through the transmission action of the worm gear 181 and worm wheel 182, it will drive the transfer disk 6 to rotate in conjunction with the central shaft 602 and the frame rib 603, thereby rotating the adjacent filter element 601 to directly below the diversion disk 9, thus realizing the automatic replacement of the filter element 601.

[0050] As a further embodiment of the present invention, such as Figures 1-3 As shown, a pair of supporting side frames 701 are fixed between the outer peripheral wall of the centrifuge tank 2 and the frame base 1, and a pair of supporting side frames 7 are fixed between the collection hopper 5 and the frame base 1.

[0051] Furthermore, a pair of electric telescopic rods 191 are fixed to the top of the centrifuge tank 2, and a top cover 19 is fixedly installed on the top of the two electric telescopic rods 191. The top cover 19 can rotate with the centrifuge hopper 3. With the above structure, the electric telescopic rods 191 can be used to pull the top cover 19 downward after the material is fed in, thereby sealing the top of the centrifuge hopper 3.

[0052] Furthermore, a transmission rod 25 is provided on one side of the centrifuge tank 2, and a crossbeam rod 26 is fixed to the top of the transmission rod 25. A transmission plumb rod 27 is fixed to the other end of the crossbeam rod 26, and the bottom end of the transmission plumb rod 27 is fixedly connected to the top of the cylindrical tube 8.

[0053] Furthermore, a pair of L-shaped end pipes 20 are fixedly connected to the top of the collection hopper 5, and a one-way air vent valve 21 is fixedly installed on each L-shaped end pipe 20. A U-shaped abutment 24 is slidably connected inside the two L-shaped end pipes 20. A hydraulic rod 4 is fixedly connected between the middle end of the U-shaped abutment 24 and the frame base 1. The top of the U-shaped abutment 24 is fixedly connected to the bottom end of the transmission column 25. Through the above structure, the operation of the hydraulic rod 4 can cooperate with the transmission column 25 and the crossbeam 26 to drive the transmission vertical rod 27 and the cylindrical tube 8 to move vertically. At the same time, when the hydraulic rod 4 extends, it pushes the U-shaped abutment 24 to move upward, thereby forming a negative pressure with the L-shaped end pipes 20, which draws out the air in the collection hopper 5, so that the collection hopper 5 is in a negative pressure state, and forms a suction filtration effect with the filter element 601 to improve the filtration efficiency.

[0054] Furthermore, each L-shaped end pipe 20 is fixedly connected to one side of an air supply pipe 23, and a one-way air outlet valve 232 is fixedly installed on each air supply pipe 23. A corrugated hose 231 is fixedly connected between the ends of the two air supply pipes 23 and the top cover 19, and a clamp 22 is fixedly connected between the two air supply pipes 23 and the centrifuge tank 2. Through the above structure, when the hydraulic rod 4 retracts, the air in the L-shaped end pipe 20 can be forced into the air supply pipe 23 through the one-way air outlet valve 232, and then transported to the centrifuge hopper 3 through the corrugated hose 231, thereby increasing the air pressure inside the centrifuge hopper 3, thereby promoting the material to pass through the arc-shaped filter plate 304, so as to further improve the initial separation efficiency.

[0055] The specific working method is as follows: When in use, the material to be filtered is added to the centrifugal hopper 3. The electric telescopic rod 191 is used to pull the top cover 19 downward, thereby sealing the top of the centrifugal hopper 3. The rotary motor 302 is started, and through the transmission action of the driving conical teeth 303 and the driven conical teeth 301, the centrifugal hopper 3 is driven to rotate rapidly to achieve centrifugation. When the cylindrical cylinder 8 moves downward, the bottom pressure plate 17 applies pressure to the material in the inner bucket end 201, thereby cooperating with the diversion plate 9 and the filter element 601 below to achieve pressure filtration of the material. The friction angle between the spiral rib 805 and the spiral guide groove 806 is less than the rise angle, so that when the cylindrical cylinder 8 moves vertically, the spiral rib 805 and the spiral guide groove 806 can drive the collar 803 to rotate. The collar 803 can then drive the folded scraper 807 to scrape the inner wall of the centrifugal hopper 3 through the connecting rib 804, so as to promote the material to converge towards the inclined support 802.

[0056] After prolonged filtration, the filter element 601 gradually becomes clogged. During the filtration process, the reaction force generated by the bottom pressure plate 17 gradually increases until it exceeds the supporting force. At this point, the arc-shaped locking block 15 disengages from the arc-shaped locking groove 111. The pressure sensor 14 then contacts the end face of the annular end block 10 and generates a pressure signal. Upon receiving the pressure signal, the external controller starts the stepper motor 18, which, through the transmission of the worm gear 181 and worm wheel 182, drives the transfer disc 6 to rotate, thereby rotating the adjacent filter element 601 directly below the distribution disc 9, thus achieving automatic replacement of the filter element 601. The operation of the hydraulic rod 4, in conjunction with the transmission... The moving rod 25 and the crossbeam 26 drive the transmission plumb rod 27 and the cylindrical tube 8 to move vertically. At the same time, when the hydraulic rod 4 extends, it pushes the U-shaped abutment 24 to move upward, thereby forming a negative pressure with the L-shaped end pipe 20, which draws out the air from the collection hopper 5, so that the collection hopper 5 is in a negative pressure state, and forms a suction filtration effect with the filter element 601 to improve the filtration efficiency. When the hydraulic rod 4 retracts, the air in the L-shaped end pipe 20 is forced into the air supply pipe 23 through the one-way air outlet valve 232, and then transported to the centrifugal hopper 3 through the corrugated hose 231, thereby increasing the air pressure inside the centrifugal hopper 3, thereby promoting the material to pass through the arc-shaped filter plate 304, so as to further improve the initial separation efficiency.

[0057] Example 2

[0058] This embodiment provides a method for preparing engine oil repair fluid, the method comprising the following steps:

[0059] S1. Using 93wt% base oil, 6wt% nano molybdenum, and 1wt% carbon nanotubes as raw materials, the mixture is put into a mixing device for mixing. The nano molybdenum is used to improve the corrosion resistance of the engine, while the carbon nanotubes have the functions of electrical conductivity, thermal conductivity, lubrication, and rapid repair of steel walls.

[0060] S2. Stir at 190℃-200℃ for 30-40 minutes;

[0061] S3. After stirring is completed and the mixture has cooled, the material is put into the centrifugal hopper 3 of the above-mentioned filtration device. The centrifugal assembly, pressure filter assembly and suction filter assembly are used to centrifuge, filter and remove impurities from the material in sequence to finally obtain the oil repair fluid.

[0062] The foregoing description enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A filtration device for preparing engine oil repair fluid, comprising a frame base (1), a centrifuge tank (2), a transfer tray (6), and a collection hopper (5), characterized in that, It also includes centrifugation components, pressure filtration components, and vacuum filtration components; The centrifugal assembly includes a centrifugal bucket (3) rotatably mounted at the center of the top of the centrifugal tank (2). A pair of arc-shaped filter plates (304) are detachably and fixedly mounted at the bottom of the centrifugal bucket (3). The centrifugal tank (2) has an integrated built-in bucket end (201) inside. An integrated end cylinder (801) is provided at the axis of the built-in bucket end (201). The end cylinder (801) has multiple equally spaced oblique support openings (802) near the bottom. The filter press assembly includes a collar (803) rotatably mounted on the end cylinder (801), and a pair of connecting ribs (804) are fixed on the outer peripheral wall of the collar (803). The ends of the connecting ribs (804) are all fixed with folded scrapers (807). A transmission plumb line (27) is provided at the axis of the centrifugal bucket (3), and a cylindrical tube (8) adapted to the collar (803) is fixed at the bottom end of the transmission plumb line (27). A spiral guide groove (806) is provided on the inner peripheral wall of the collar (803), and a spiral protrusion (805) that slides with the spiral guide groove (806) is provided on the outer peripheral wall of the cylindrical tube (8). The bottom end of the cylindrical tube (8) is provided with a bottom pressure plate (17), and an elastic membrane end (16) is fixedly connected between the bottom pressure plate (17) and the cylindrical tube (8). An annular end block (10) is fixed at the bottom end of the cylindrical tube (8). An annular plate (11) is fixed on the bottom pressure plate (17) and is coaxially arranged with the annular end block (10). The annular plate (11) and the annular end block (10) are provided with a snap-fit ​​mechanism. A pressure sensor (14) is fixed on the bottom pressure plate (17). The ring plate (11) has evenly distributed guide holes (12). The bottom end of the cylindrical tube (8) is fixedly installed with multiple guide rods (13) that slide with the guide holes (12). A connecting spring (28) is fixed between the guide rods (13) and the guide holes (12). The signal output end of the pressure sensor (14) is electrically connected to an external controller. The top of the centrifuge tank (2) is fixedly installed with a rotary motor (302). The output shaft of the rotary motor (302) is fixedly installed with a drive bevel gear (303). The centrifugal hopper (3) has a driven conical tooth (301) fixedly installed on its outer wall to mesh with the driving conical tooth (303). The snap-fit ​​mechanism includes multiple receiving ports opened on the outer peripheral wall of the annular end block (10), and each receiving port has an arc-head snap-fit ​​block (15) slidably installed in it. A compression spring (151) is fixedly connected between the arc-head snap-fit ​​block (15) and the receiving port. The inner peripheral wall of the ring plate (11) has multiple arc-shaped slots (111) adapted to the arc-head snap-fit ​​block (15). The centrifugal tank (2) and the collecting hopper A central shaft (602) is rotatably mounted between the boxes (5), and a frame rib (603) is fixed between the outer peripheral wall of the central shaft (602) and the inner peripheral wall of the transfer tray (6). The transfer tray (6) has multiple equally spaced mounting holes, and a filter element (601) can be detachably and fixedly installed in each mounting hole. A diversion plate (9) is threadedly connected to the center of the bottom of the centrifuge tank (2). When the diversion plate (9), the filter element (601), and the collection hopper (5) are in a coaxial position, they are interconnected. The bottom end of the device is equipped with a discharge valve (501), a worm gear (182) is fixed on the outer peripheral wall of the central shaft (602), a bracket (183) is fixed on the frame (1), and a stepper motor (18) is fixed on the bracket (183). The output shaft of the stepper motor (18) is fixedly connected to a worm (181). The worm (181) and the worm gear (182) mesh with each other, and the helix angle between the worm (181) and the worm gear (182) is less than the friction angle. The stepper motor (18) is electrically connected to an external controller.

2. The filtration device for preparing engine oil repair fluid according to claim 1, characterized in that: A pair of supporting side frames (701) are fixed between the outer peripheral wall of the centrifuge tank (2) and the frame base (1), and a pair of supporting side frames (7) are fixed between the collection hopper (5) and the frame base (1).

3. The filtration device for preparing engine oil repair fluid according to claim 1, characterized in that: The top of the centrifuge tank (2) is fixed with a pair of electric telescopic rods (191), and the top of the two electric telescopic rods (191) is fixedly installed with a top cover (19), which can rotate with the centrifuge bucket (3).

4. The filtration device for preparing engine oil repair fluid according to claim 3, characterized in that: A transmission rod (25) is provided on one side of the centrifuge tank (2), and a crossbeam rod (26) is fixed at the top of the transmission rod (25). A transmission plumb rod (27) is fixed at the other end of the crossbeam rod (26), and the bottom end of the transmission plumb rod (27) is fixedly connected to the top of the cylindrical tube (8).

5. The filtration device for preparing engine oil repair fluid according to claim 3, characterized in that: The top of the collection hopper (5) is fixedly connected to a pair of L-shaped end pipes (20), and a one-way air valve (21) is fixedly installed on each of the L-shaped end pipes (20). A U-shaped support frame (24) is slidably connected inside the two L-shaped end pipes (20). A hydraulic rod (4) is fixedly connected between the middle end of the U-shaped support frame (24) and the frame seat (1). The top of the U-shaped support frame (24) is fixedly connected to the bottom end of the transmission column (25).

6. The filtration device for preparing engine oil repair fluid according to claim 5, characterized in that: Each of the L-shaped end pipes (20) is fixedly connected to one side of a gas supply pipe (23), and a one-way gas outlet valve (232) is fixedly installed on each gas supply pipe (23). Corrugated hoses (231) are fixedly connected between the ends of the two gas supply pipes (23) and the top cover (19), and a clamp (22) is fixedly connected between the two gas supply pipes (23) and the centrifuge tank (2).

7. A method for preparing engine oil repair fluid, wherein the method is applied to the filter device for preparing engine oil repair fluid according to any one of claims 1-6, characterized in that: The method includes the following steps: S1. Using 93wt% base oil, 6wt% nano-molybdenum, and 1wt% carbon nanotubes as raw materials, the mixture is put into a mixing device for mixing. S2. Stir at 190℃-200℃ for 30-40 minutes; S3. After stirring is completed and the material is cooled, put the material into the centrifugal hopper (3) in the above-mentioned filtration device. Using the centrifugal assembly, pressure filter assembly and suction filter assembly, the material is centrifuged and separated in sequence, and pressure filter and suction filter are applied to remove impurities from the material and finally obtain the oil repair fluid.

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