Automatic oil-water-dregs separation device for kitchen waste oil

Abstract

The present application relates to centrifugal separation equipment technical field, specifically said is a kind of kitchen waste oil automatic oil-water residue separation device, including horizontal screw separator main body, the outer side cover of horizontal screw separator main body is equipped with protective shell, protective shell is composed of upper arc shell and lower arc shell, upper arc shell and lower arc shell one side are hinged by hinged shaft;Through swing outfeed assembly, rely on material adhesion accumulation weight self-adapting swing, and utilize transmission assembly to drive carousel and cleaning assembly synchronous rotation, realize the automatic scraping cleaning of solid-phase discharge cavity inner wall oil dirt residue;Without manual disassembly cleaning, effectively prevent viscous oil dirt residue long-term accumulation scale, guarantee the long-term continuous stable operation of equipment, significantly reduce the cost of manual maintenance, improve the overall processing efficiency of kitchen waste oil.

Description

Technical Field

[0001] This invention relates to the field of centrifugal separation equipment technology, specifically to an automated oil-water-sludge separation device for kitchen waste oil. Background Technology

[0002] Waste cooking oil has a complex composition, containing high-viscosity animal and vegetable oils, fine kitchen residues, sewage, and colloidal impurities. Currently, the industry mainly uses horizontal spiral separators to complete continuous three-phase separation of waste cooking oil. The horizontal screw separator mainly relies on the relative differential rotation of the drum and the screw pusher to achieve stratification of the mixed kitchen materials entering the drum during axial conveying. The denser solid residue is continuously pushed to the solid phase discharge end by the screw pusher, while the medium-density water phase and the less dense oil phase flow out separately through the liquid phase overflow port. This achieves continuous and automatic separation of the three phases of oil, water and residue in kitchen materials, and is currently the mainstream equipment for large-scale treatment of kitchen waste oil. However, in actual long-term operation, due to the high oil content, high viscosity, and large amount of fine residue in the waste cooking oil, a large amount of material will splash and fly onto the inner wall of the outer protective shell of the equipment during high-speed conveying, pushing, and slag discharge. The highly viscous oil and fine residue can easily and firmly adhere to the surface of the inner wall of the shell and cannot be removed on their own. As the equipment operates continuously, the oil stains and residues adhering to the inner wall will continue to accumulate, scale, and harden, which not only occupies the internal space of the equipment and affects the stability of the equipment's operating conditions, but also easily causes malfunctions such as narrow shell flow channels, poor slag discharge, and cavity blockage. Meanwhile, the long-term accumulation of kitchen oil residue on the inner wall of the shell is prone to fermentation and deterioration, producing odors and breeding dirt, which further aggravates the corrosion and scaling of the equipment, leading to a continuous decline in equipment separation efficiency and an increase in failure rate. Frequent shutdowns for manual disassembly and cleaning are necessary. High manual maintenance costs and poor stability of continuous operation of the equipment seriously restrict the automated, continuous, and stable processing of kitchen waste oil. Therefore, an automated oil-water-sludge separation device for kitchen waste oil is proposed, which can adaptively scrape off sticky oil residue on the inner wall of the shell, prevent clogging and scaling, and ensure long-term continuous and stable operation of the equipment. Summary of the Invention

[0003] To address the problems in existing technologies, this invention provides an automated oil-water-sludge separation device for kitchen waste oil, which can adaptively scrape off sticky oil residue from the inner wall of the shell, prevent clogging and scaling, and ensure long-term continuous and stable operation of the equipment.

[0004] The technical solution adopted by this invention to solve its technical problem is an automated oil-water-sludge separation device for kitchen waste oil, including a horizontal spiral separator body. A protective shell is provided on the outside of the horizontal spiral separator body. The protective shell is composed of an upper arc-shaped shell and a lower arc-shaped shell. The upper arc-shaped shell and the lower arc-shaped shell are hinged on one side by a hinge shaft. Semi-annular sealing plates are fixedly connected to the inner walls of the upper arc-shaped shell and the lower arc-shaped shell. The two sets of semi-annular sealing plates are joined together to form an annular sealing structure and are snapped onto the outside of the solid phase discharge end of the horizontal spiral separator body. The semi-annular sealing plates and the end of the protective shell enclose a solid phase discharge chamber. Both the upper and lower arc-shaped shells have mounting grooves on their inner sides at one end. A turntable is sealed and rotatably mounted inside the mounting groove. A cleaning component for scraping oil and residue from the inner wall of the solid discharge chamber is mounted on the outer side of the turntable. The lower end of the lower arc-shaped shell is connected to a vertically arranged discharge pipe. A swing discharge component that self-adapts to the weight of the material adhering and accumulating is mounted at the bottom of the discharge pipe. A transmission component is set on the outer side of the lower arc-shaped shell. When the swing discharge component swings, it drives the turntable and the cleaning component to rotate synchronously through the transmission component, scraping and cleaning the inner wall of the solid discharge chamber.

[0005] Specifically, the oscillating discharge assembly includes two sets of oscillating plates arranged at an angle below the discharge pipe, with a torsion spring hinge shaft passing through the middle of the oscillating plate; the two ends of the torsion spring hinge shaft are fixedly assembled to the side wall of the discharge pipe by support members; an arc-shaped rack is fixed to the upper part of the oscillating plate by a connecting rod, and the arc-shaped rack meshes with the transmission assembly for transmission.

[0006] Specifically, drive slots are provided on the side of the upper arc-shaped housing and the lower arc-shaped housing near the mounting slot; the drive disk is fixedly connected to the side of the turntable away from the cleaning component, the drive disk is located in the drive slot, and the tooth structure is evenly arranged around the outer edge of the drive disk; the tooth structure is driven by meshing with the arc-shaped rack through the transmission component.

[0007] Specifically, the transmission assembly includes a drive shaft, a support base that is rotatably connected to the lower arc-shaped housing, a speed-changing gear that is coaxially connected to the drive shaft, a meshing window that communicates with the drive groove in the lower part of the lower arc-shaped housing, and the speed-changing gear meshing with the tooth structure through the meshing window; the drive shaft is equipped with a transmission gear that meshes with the arc-shaped rack through a one-way bearing.

[0008] Specifically, the inner wall of the upper arc-shaped shell is provided with an arc-shaped assembly groove, and a snap-fit ​​groove is provided on the inner side of the arc-shaped assembly groove; an arc-shaped plate is assembled in the arc-shaped assembly groove, and a positioning slide plate is fixedly connected to the outer side of the arc-shaped plate. The positioning slide plate is slidably snapped into the snap-fit ​​groove, and multiple sets of damping return springs are provided between the lower surface of the positioning slide plate and the bottom wall of the snap-fit ​​groove. The curved plate is equipped with elastic supports at both ends. When a large amount of kitchen waste adheres and accumulates on the surface of the curved plate, the weight of the material causes the curved plate and the positioning slide plate to slide downward slightly and compress the damping return spring. Several one-way air outlets are set on the inner side of the curved plate. A telescopic air supply component is fixedly installed on the top of the upper curved shell. During the downward movement of the curved plate under pressure, the telescopic air supply component automatically connects to the external air source. The high-pressure airflow is ejected through the one-way air outlets to blow away the sticky oil and residues adhering to the inner wall of the solid discharge chamber.

[0009] Specifically, the cleaning component includes multiple fixed tubes evenly distributed circumferentially along the side of the turntable away from the drive plate, and each fixed tube is equipped with an elastic cleaning plate.

[0010] Specifically, the telescopic connecting air supply assembly includes an air inlet seat fixedly installed on the top surface of the upper arc-shaped housing; a first air inlet hole is opened on the side wall of the air inlet seat, and the first air inlet hole is connected to an external air inlet connector; a hollow sliding tube is vertically sealed and slidably assembled inside the air inlet seat, and a second air inlet hole is opened at the upper end of the hollow sliding tube. Under normal conditions, the second air inlet hole is located above the first air inlet hole. The lower end of the hollow sliding tube passes through the upper arc-shaped shell and is fixedly connected to the arc-shaped plate; the arc-shaped plate has an air inlet cavity that communicates with the one-way air outlet nozzle, and the air inlet cavity is connected to the internal pipeline of the hollow sliding tube.

[0011] Specifically, several air inlet slots are evenly opened on the outer circumference of the turntable, and an annular air inlet chamber is set inside the turntable and connected to the air inlet slots; several sets of air outlet nozzles that exit along the tangential direction of the drive disc are connected to the side of the fixed pipe, and the fixed pipe is connected to the annular air inlet chamber. When the airflow is ejected outward through the air outlet nozzles, it drives the turntable to rotate. A gas guide connector is fixedly installed on the top of the upper arc-shaped shell. A branch gas outlet is provided at the upper end of the hollow sliding tube. The gas guide connector is connected to the branch gas outlet through a hose. Two sets of gas guide holes are opened on the inner wall of the mounting groove. Both sets of gas guide holes are connected to the internal air passage of the gas guide connector.

[0012] Specifically, a mounting base plate is fixedly assembled on the outer side of the upper arc-shaped shell; multiple sets of threaded mounting holes are opened on the mounting base plate, and the threaded mounting holes are locked and fixed to the upper surface of the horizontal screw separator by bolts; a lifting handle is fixed on the outer side of the mounting base plate.

[0013] The beneficial effects of this invention are: (1) The automated oil-water-sludge separation device for kitchen waste oil described in this invention automatically scrapes and cleans the oil residue on the inner wall of the solid discharge chamber by using the swing discharge component to automatically swing based on the weight of the material adhering and accumulating, and using the transmission component to drive the turntable and cleaning component to rotate synchronously; no manual disassembly and cleaning is required, which effectively prevents the long-term accumulation and scaling of sticky oil residue, ensures the long-term continuous and stable operation of the equipment, significantly reduces the cost of manual maintenance, and improves the overall processing efficiency of kitchen waste oil.

[0014] (2) The automated oil-water-sludge separation device for kitchen waste oil described in this invention uses a sliding arc-shaped plate on the inner wall of the upper arc-shaped shell, along with a damping reset spring and a telescopic connecting air supply component. After the equipment stops, the external air source is automatically connected by the weight of the material on the surface. High-pressure air is blown out through the unidirectional air outlet nozzle to sweep away the stubborn oil residue that adheres to the inner wall of the upper part of the solid discharge chamber. After the cleaning is completed, the air source is automatically disconnected. No electromagnetic valve or sensor control is required. This realizes automatic cleaning when the machine stops and automatic air cut-off after the cleaning is completed, which greatly reduces the frequency of manual cleaning and maintenance.

[0015] (3) The automated oil-water-sludge separation device for kitchen waste oil described in this invention divides the same air source into two branches. One branch blows the clumps of oil on the surface of the arc-shaped plate directly downward through the unidirectional air outlet nozzle. The other branch is diverted to the air outlet hole in the inner wall of the mounting groove through the air guide connecting seat. It is sprayed along the tangential direction through the air inlet groove of the turntable, the annular air inlet chamber and the air outlet on the side of the fixed pipe. The air jet reverse thrust is used to drive the turntable and the cleaning components to rotate synchronously. No additional motor drive is required. The entire area can be strengthened by scraping and cleaning using only the blowing air source, which reduces the energy consumption of the whole machine and the configuration of parts, and eliminates the risk of oil clumps in the cavity after shutdown. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is an isometric view of the main body of the horizontal screw separator of the present invention; Figure 2 This is a cross-sectional view of the protective housing portion of the present invention; Figure 3 This is a schematic diagram of the lower arc-shaped shell and the turntable connection structure of the present invention; Figure 4 This is a schematic diagram of the lower arc-shaped shell structure of the present invention; Figure 5 This is a schematic diagram of the turntable connection structure of the present invention; Figure 6 This is a schematic diagram of the assembly of the oscillating discharge component and the transmission gear of the present invention; Figure 7 This is a bottom view of the upper arc-shaped shell structure of the present invention; Figure 8 This is a schematic diagram of the arc-shaped plate connection structure of the present invention; Figure 9 This is a schematic cross-sectional view of the upper arc-shaped shell structure of the present invention; Figure 10 for Figure 9 Enlarged view of region A.

[0017] In the diagram: 1. Main body of the horizontal spiral separator; 2. Upper arc-shaped shell; 3. Lower arc-shaped shell; 4. Semi-annular sealing plate; 5. Solid phase discharge chamber; 6. Mounting groove; 7. Turntable; 8. Discharge pipe; 9. Swing plate; 10. Torsion spring hinge shaft; 11. Support component; 12. Connecting rod; 13. Arc-shaped rack; 14. Drive groove; 15. Drive disc; 16. Tooth structure; 17. Drive shaft; 18. Support base; 19. Speed ​​change gear; 20. Meshing window; 21. One-way bearing; 22. Transmission gear; 23. Arc-shaped assembly groove; 24. Snap-fit ​​groove; 25. 26. Curved plate; 27. Positioning slide plate; 28. Damped return spring; 29. ​​Elastic support; 30. One-way air outlet; 31. Fixing tube; 32. Elastic cleaning plate; 33. Air inlet seat; 34. First air inlet; 35. Air inlet connector; 36. Hollow sliding tube; 37. Second air inlet; 38. Air inlet cavity; 39. Air inlet groove; 40. Annular air inlet cavity; 41. Air guide connecting seat; 42. Branch air outlet; 43. Hose; 44. Air guide through hole; 45. Mounting base plate; 46. Threaded mounting hole; 47. Lifting handle. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0019] Example 1 To facilitate the adaptive scraping of sticky oil residue from the inner wall of the housing, prevent clogging and scaling, and ensure long-term continuous and stable operation of the equipment, as one embodiment of the present invention, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 7 As shown, the automated oil-water-sludge separation device for kitchen waste oil of the present invention includes a horizontal spiral separator body 1. A protective shell is provided on the outside of the horizontal spiral separator body 1. The protective shell is composed of an upper arc-shaped shell 2 and a lower arc-shaped shell 3. The upper arc-shaped shell 2 and the lower arc-shaped shell 3 are hinged on one side by a hinge shaft. Semi-annular sealing plates 4 are fixedly connected to the inner walls of the upper arc-shaped shell 2 and the lower arc-shaped shell 3. The two sets of semi-annular sealing plates 4 are joined together to form an annular sealing structure and are snapped onto the outside of the solid phase discharge end of the horizontal spiral separator body 1. The semi-annular sealing plates 4 and the end of the protective shell enclose a solid phase discharge cavity 5. Both the upper arc-shaped shell 2 and the lower arc-shaped shell 3 have an installation groove 6 on the inner side of one end. The installation groove 6 is sealed and rotatably equipped with a turntable 7. The outer side of the turntable 7 is equipped with a cleaning component for scraping off oil and residue from the inner wall of the solid discharge chamber 5. The lower end of the lower arc-shaped shell 3 is connected to a vertically arranged discharge pipe 8. The bottom of the discharge pipe 8 is equipped with a swing discharge component that swings adaptively based on the weight of the material adhering and accumulating. A transmission component is set on the outer side of the lower arc-shaped shell 3. When the swing discharge component swings, it drives the turntable 7 and the cleaning component to rotate synchronously through the transmission component, scraping and cleaning the inner wall of the solid discharge chamber 5.

[0020] When in use, first close and assemble the upper arc-shaped shell 2 and the lower arc-shaped shell 3. The two sets of semi-annular sealing plates 4 are connected to each other to form a complete annular sealing structure and are snapped onto the outside of the solid phase discharge end of the main body 1 of the horizontal screw separator. The annular sealing structure formed by the semi-annular sealing plates 4 can cover the solid phase discharge end, so that the solid phase material is confined inside the solid phase discharge chamber 5. The mixed liquid phase or slurry formed in the front-end processing is transported to the interior of the horizontal screw separator 1. The three-phase centrifugal stratification is completed by the differential high-speed rotation of the drum and the screw pusher. After separation, waste oil, sewage and solid residue can be obtained respectively. Among them, waste oil can be used as a semi-finished product in the direction of biodiesel feedstock, sewage enters the subsequent sewage treatment process, and solid residue enters the residue disposal or domestic waste treatment system according to its properties. During the separation process, the denser solid residue is continuously pushed to the solid phase discharge end by the screw; the high-viscosity oil residue in the kitchen material is splashed at high speed by centrifugal force to the inner wall of the upper arc shell 2 and the inner wall of the lower arc shell 3 corresponding to the solid phase discharge chamber 5; some loose residues fall down into the discharge pipe 8 by their own weight and fall onto the swing discharge component. The grease from kitchen waste is highly viscous, and a large amount of oil residue will continuously adhere to the inner wall of the solid discharge chamber 5 and cannot be detached on its own. With continuous operation, the accumulation of material on the inner wall will continue to thicken. The residue that slides down to the discharge pipe 8 will continue to accumulate on the oscillating discharge component. As the weight of the accumulated material continues to increase, the oscillating discharge component will oscillate adaptively due to the weight of the material. During the oscillation of the oscillating discharge component, the linkage transmission component will move synchronously. When the transmission component is running, it will drive the turntable 7 to rotate synchronously. The cleaning component will follow the turntable 7 to make a circular motion, and perform cyclic scraping and cleaning on the inner walls of the upper arc shell 2 and the lower arc shell 3 corresponding to the solid discharge chamber 5. The cleaning component rotates to scrape off the oil stains and residues that adhere to the inner wall. The scraped-off accumulated material falls directly to the lower discharge pipe 8 and is then discharged outward through the oscillating discharge component. This continuously eliminates the risk of scaling and blockage on the inner wall of the shell, avoids the internal space of the solid discharge chamber 5 being squeezed by the accumulated material and the flow channel being narrowed, avoids equipment slag discharge problems and chamber blockage failures, and ensures that the internal material flow channel is unobstructed for a long time. As the oscillating discharge component expands with the oscillation of the accumulated material, its discharge tilt angle increases synchronously, accelerating the downward conveying and discharge of solid residues in the discharge pipe 8, and reducing the bridging of sticky residues at the bottom of the discharge pipe 8. At the same time, the turntable 7 drives the cleaning component to fully cover and scrape the inner wall of the solid discharge chamber 5, leaving no dead corners for cleaning. The scraped-off oily residues can be discharged synchronously with the falling material, preventing secondary residue accumulation. There is no need to stop the machine midway for manual disassembly and cleaning of the oily residues on the inner wall of the solid discharge chamber 5, which greatly reduces manual maintenance time and operating costs, extends the continuous operation time of the equipment, and improves the overall processing efficiency of kitchen waste oil.

[0021] To accelerate the discharge of residue, for example, such as Figure 2 , Figure 6 As shown, the present invention also includes a swing discharge assembly comprising two sets of swing plates 9 arranged at an incline below the discharge pipe 8, with a torsion spring hinge shaft 10 passing through the middle of the swing plate 9; the two ends of the torsion spring hinge shaft 10 are fixedly assembled to the side wall of the discharge pipe 8 by support members 11; an arc-shaped rack 13 is fixed to the upper part of the swing plate 9 by a connecting rod 12, and the arc-shaped rack 13 meshes with the transmission assembly for transmission.

[0022] During use, the solid residue separated and falling by the horizontal screw separator continuously accumulates above the two sets of swing plates 9. The kitchen waste residue is highly viscous, and the weight of the accumulated material gradually increases. When the material load exceeds the pre-tightening elasticity threshold of the torsion spring inside the torsion spring hinge shaft 10, the material's own weight presses down, causing the two sets of swing plates 9 to expand and swing outward synchronously with the torsion spring hinge shaft 10 as the center. The outward opening of the swing plates 9 can increase the discharge diameter and accelerate the discharge speed of the residue. During the swing of the swing plate 9, the connecting rod 12 is moved synchronously. The connecting rod 12 pulls the arc rack 13 to move synchronously in an arc trajectory. During the movement of the arc rack 13, it forms a meshing transmission with the transmission component. The transmission component drives the turntable 7 and the cleaning component to rotate and scrape off the oil stains and residues on the inner wall of the solid discharge chamber 5. The greater the weight of the accumulated material, the greater the swing amplitude and the longer the transmission stroke of the arc rack 13. The cleaning rotation of the turntable 7 is increased synchronously, which can adaptively match the cleaning needs of sludge on the inner wall with different thicknesses. As the residue continues to be discharged, the weight of the material carried by the swing plate 9 decreases continuously. The torsion spring reset force of the torsion spring hinge shaft 10 is greater than the weight of the material itself, automatically pulling the two sets of swing plates 9 inward to reset. The arc-shaped rack 13 moves back synchronously, completing a single cleaning cycle and waiting for the next round of accumulated material to trigger the cleaning action, thus improving the stability of continuous operation of the equipment.

[0023] To facilitate the rotation of the drive disk 15, for example, such as Figure 3 , Figure 4 , Figure 5 , Figure 9As shown, the present invention also includes a drive groove 14 on the side of the upper arc-shaped housing 2 and the lower arc-shaped housing 3 near the mounting groove 6; a drive disk 15 is fixedly connected to the side of the turntable 7 away from the cleaning component, the drive disk 15 is located in the drive groove 14, and tooth structures 16 are evenly arranged around the outer edge of the drive disk 15; the tooth structures 16 are meshed with the arc-shaped rack 13 through the transmission component.

[0024] When in use, the swing plate 9 expands and swings outward driven by the weight of the material. The connecting rod 12 drives the arc-shaped rack 13 to move synchronously. Through the arc-shaped rack 13, the transmission component, and the tooth structure 16, the drive disk 15 is driven to rotate. During the rotation of the drive disk 15, the turntable 7 is synchronously driven to rotate in the mounting groove 6. The cleaning component on the outside of the turntable 7 moves in a circular motion synchronously with the turntable 7, continuously scraping and cleaning the oil stains and residues adhering to the inner wall of the solid phase discharge chamber 5. The drive groove 14 provides lateral limiting protection for the drive disc 15 and the tooth structure 16, preventing splashed oil sludge from directly adhering to the tooth meshing part and maintaining the long-term stable and continuous separation operation of the equipment.

[0025] For example, such as Figure 6 As shown, the present invention also includes a transmission assembly comprising a drive shaft 17, a support seat 18 rotatably connected to the drive shaft 17 and fixedly connected to the lower arc-shaped housing 3, a speed-changing gear 19 coaxially connected to the drive shaft 17, a meshing window 20 communicating with the drive groove 14 being opened at the lower part of the lower arc-shaped housing 3, and the speed-changing gear 19 meshing with the tooth structure 16 through the meshing window 20; and a transmission gear 22 meshing with the arc-shaped rack 13 is mounted on the drive shaft 17 through a one-way bearing 21.

[0026] When in use, the swing plate 9 expands outward under the weight of the accumulated material, the connecting rod 12 drives the arc rack 13 to move, the arc rack 13 meshes with the transmission gear 22 and drives the transmission gear 22 to rotate; the transmission gear 22 drives the drive shaft 17 to rotate synchronously through the one-way bearing 21, the speed change gear 19 rotates with the drive shaft 17, the speed change gear 19 passes through the meshing window 20 and meshes with the tooth structure 16 on the outer edge of the drive disk 15, thereby driving the drive disk 15, the turntable 7 and the cleaning components to rotate, and complete the scraping and cleaning of oil stains and residues on the inner wall of the solid phase discharge chamber 5; When the material is discharged from the swing plate 9 and the load is reduced, the torsion spring hinge shaft 10 pulls the swing plate 9 to retract and reset inward. The arc rack 13 moves back in the opposite direction at the same time and drives the transmission gear 22 to rotate in the opposite direction. At this time, the one-way bearing 21 rotates in the freewheeling position, and the speed change gear 19 remains stationary to prevent the drive plate 15 and the turntable 7 from rotating in the opposite direction with the reset action of the arc rack 13. The cleaning component is driven to operate only during the opening stroke of the swing plate 9. The return stroke does not produce a reverse scraping action, which avoids the reverse rotation from bringing up the scraped residue and oil stains again and adhering them to the inner wall of the cavity, causing secondary scale buildup. The speed change gear 19 can be matched with the transmission speed ratio, and a small amount of material oscillation can achieve sufficient scraping and cleaning, improve the self-cleaning effect of the cavity, and reduce the probability of scale buildup and blockage of the equipment.

[0027] To achieve automatic cleaning of stubborn accumulated material after shutdown, for example, such as Figure 7 , Figure 8 , Figure 9 As shown, the present invention also includes an arc-shaped assembly groove 23 on the inner wall of the upper arc-shaped housing 2, and a snap-fit ​​groove 24 on the inner side of the arc-shaped assembly groove 23; an arc-shaped plate 25 is assembled in the arc-shaped assembly groove 23, and a positioning slide plate 26 is fixedly connected to the outer side of the arc-shaped plate 25; the positioning slide plate 26 is slidably snapped into the snap-fit ​​groove 24; and multiple sets of damping return springs 27 are provided between the lower surface of the positioning slide plate 26 and the bottom wall of the snap-fit ​​groove 24. The curved plate 25 is equipped with elastic supports 28 at both ends. When a large amount of kitchen oil residue adheres and accumulates on the surface of the curved plate 25, the weight of the material causes the curved plate 25 and the positioning slide plate 26 to slide downward slightly and compress the damping return spring 27. Several one-way air outlet nozzles 29 are provided on the inner side of the curved plate 25. A telescopic connecting air supply component is fixedly installed on the top of the upper curved shell 2. During the downward movement of the curved plate 25 under pressure, the telescopic connecting air supply component automatically connects to the external air source. The high-pressure airflow is sprayed out through the one-way air outlet nozzles 29 to blow away the sticky oil and residue adhering to the inner wall of the solid phase discharge chamber 5.

[0028] When the equipment is in normal continuous operation, the material thrown out at high speed from the solid discharge end of the horizontal screw separator continuously impacts the arc plate 25. The impact force can offset the weight of the material on the surface of the arc plate 25, and the arc plate 25 remains in place without moving down. The thin layer of oil residue adhering to the surface of the arc plate 25 is scraped off by the rotating cleaning component of the turntable 7 without starting the air source to purge. When the equipment stops, there is no continuous centrifugal material impacting the arc-shaped plate 25. The oil residue accumulated on the surface of the arc-shaped plate 25 only relies on its own weight to press down on the arc-shaped plate 25. The arc-shaped plate 25 drives the positioning slide plate 26 to slide down along the snap-fit ​​groove 24, simultaneously compressing the bottom damping reset spring 27 and squeezing the elastic supports 28 at both ends to deform. When the arc-shaped plate 25 moves down, it simultaneously pulls the telescopic connecting air supply component to conduct the external high-pressure air source. After the high-pressure gas enters the air inlet cavity 37 inside the arc-shaped plate 25, it is sprayed downward in a directional direction through the one-way air outlet nozzle 29, sweeping away the oil residue that is stuck and clumped on the upper inner wall of the arc-shaped plate 25 and the solid phase discharge cavity 5 in all directions. The waste residue blown off by the airflow slides down the cavity to the discharge pipe 8 to be discharged. After the material accumulated on the surface of the arc-shaped plate 25 is blown off and the load is reduced, the damping return spring 27 rebounds and pushes the positioning slide plate 26 and the arc-shaped plate 25 to return to their original position. The telescopic connecting air supply component simultaneously disconnects the air source, and the blowing operation stops automatically. There is no need for manual disassembly and washing. After the machine stops, the stubborn accumulated material is automatically blown off and cleaned, which greatly reduces the amount of manual maintenance and avoids the long-term adhesion of oil stains, fermentation and corrosion of the shell, ensuring that the cavity is unobstructed for a long time.

[0029] For example, such as Figure 5 As shown, the present invention also includes a cleaning component comprising multiple fixed tubes 30 evenly arranged circumferentially along the side of the turntable 7 away from the drive disc 15, and each fixed tube 30 is equipped with an elastic cleaning plate 31.

[0030] When in use, as the turntable 7 is driven by the transmission component to rotate in a circular motion, multiple fixed tubes 30 rotate synchronously around the turntable 7. The elastic cleaning plate 31 continuously slides and scrapes against the inner wall of the solid phase discharge chamber 5, the surface of the arc-shaped plate 25, and the inner wall of the lower arc-shaped shell 3, removing the attached sticky oil and residue. Multiple fixed pipes 30 are evenly arranged around the turntable 7. During rotation, the inner wall of the cavity can be cleaned repeatedly. The scraped oil residue falls directly to the discharge pipe 8 by its own weight and is discharged. The cleaning plate made of elastic material can buffer the friction of hard residue, avoid long-term scraping and wear on the shell and the arc plate 25 body, and extend the service life of the equipment protective shell.

[0031] To achieve automatic purging upon shutdown and automatic air shut-off upon completion of material cleaning, for example, such as... Figure 1 , Figure 2 , Figure 9 , Figure 10 As shown, the present invention also includes a telescopic and interconnected air supply assembly comprising an air inlet seat 32 fixedly installed on the top surface of the upper arc-shaped housing 2; a first air inlet hole 33 is opened on the side wall of the air inlet seat 32, the first air inlet hole 33 is connected to an external air inlet connector 34; a hollow sliding tube 35 is vertically sealed and slidably assembled inside the air inlet seat 32, a second air inlet hole 36 is opened at the upper end of the hollow sliding tube 35, and the second air inlet hole 36 is located above the first air inlet hole 33 under normal conditions; The lower end of the hollow sliding tube 35 passes through the upper arc-shaped shell 2 and is fixedly connected to the arc-shaped plate 25; the arc-shaped plate 25 has an air inlet cavity 37 that communicates with the one-way air outlet nozzle 29, and the air inlet cavity 37 is connected to the internal pipeline of the hollow sliding tube 35.

[0032] When the equipment is stopped, the weight of the material on the surface of the arc-shaped plate 25 presses down on the arc-shaped plate 25 and the positioning slide plate 26. The arc-shaped plate 25 simultaneously pulls the hollow sliding tube 35 connected to the bottom to slide vertically downward along the inside of the air inlet seat 32. The hollow sliding tube 35 moves down to the second air inlet 36 and aligns with the first air inlet 33 on the side wall of the air inlet seat 32. External high-pressure air enters the hollow sliding tube 35 through the air inlet connector 34, the first air inlet 33, and the second air inlet 36 in sequence, and then flows into the air inlet cavity 37 inside the arc-shaped plate 25. Finally, it is sprayed downward in a directional direction from the one-way air outlet 29 on the inner side of the arc-shaped plate 25 to blow away and clean the clumps of oil and residues adhering to the upper inner wall of the arc-shaped plate 25 and the solid phase discharge chamber 5. Once the surface oil residue is blown off by the airflow and the load on the arc-shaped plate 25 is significantly reduced, the damping return spring 27 pushes the positioning slide plate 26 and the arc-shaped plate 25 to slowly return to their original position. Simultaneously, the hollow sliding tube 35 slides upward, and the second air inlet 36 rises again above the first air inlet 33. The two air inlet channels are disconnected, the air source is automatically cut off, and the purging operation stops. No electromagnetic valves, sensors, or other electronic control components are required, making it suitable for harsh working conditions with high oil and high humidity in kitchens. It achieves automatic purging upon shutdown and automatic air cut-off upon completion of cleaning. The structure is simple and stable, reduces the adhesion of stubborn oil residue, and lowers the cost of manual cleaning and maintenance.

[0033] To eliminate the risk of oil sludge buildup in the cavity after shutdown and reduce the frequency of manual disassembly and maintenance, for example, such as Figure 7 , Figure 8 , Figure 9 As shown, the present invention also includes a plurality of air inlet grooves 38 evenly opened on the outer circumference of the turntable 7, and an annular air inlet cavity 39 connected to the air inlet grooves 38 inside the turntable 7; a plurality of air outlet nozzles 40 connected to the side of the fixed pipe 30, which are tangential to the drive disc 15, and the fixed pipe 30 is connected to the annular air inlet cavity 39. When the airflow is ejected outward through the air outlet nozzles 40, the turntable 7 is driven to rotate. A gas guide connecting seat 41 is fixedly installed on the top of the upper arc-shaped shell 2. A branch gas outlet 42 is provided at the upper end of the hollow sliding tube 35. The gas guide connecting seat 41 is connected to the branch gas outlet 42 through a hose 43. Two sets of gas guide holes 44 are opened on the inner wall of the mounting groove 6. Both sets of gas guide holes 44 are connected to the internal air passage of the gas guide connecting seat 41.

[0034] During use, after the equipment stops, the arc-shaped plate 25 is pressed down, and the first air inlet 33 and the second air inlet 36 are connected, allowing high-pressure airflow into the hollow sliding tube 35. Part of the airflow enters the air inlet cavity 37 of the arc-shaped plate 25 and blows down the slag accumulated in the upper part of the cavity through the one-way air outlet 29. The other part flows out from the branch air outlet 42, is transported to the air guide connecting seat 41 through the hose 43, and then splits to the two sets of air guide holes 44 on the inner wall of the mounting groove 6 and sprays outward. During the rotation of the turntable 7, at least one air inlet groove 38 is always aligned and connected with the air guide hole 44. The airflow flows into the annular air inlet cavity 39 inside the turntable 7 through the air inlet groove 38, and then splits to each fixed pipe 30 and sprays out from the air outlet 40. The airflow sprayed in the tangential direction drives the turntable 7 to drive the cleaning components to rotate synchronously, and completes the full-area enhanced scraping cleaning of the solid phase discharge cavity 5 in conjunction with the airflow. The turntable 7 rotates autonomously by jet thrust, and the one-way bearing 21 prevents the swing plate 9 from swinging in conjunction with the drive, thus avoiding the problem of irregular opening and closing of the swing plate 9 and the secondary falling and accumulation of materials. After the surface material on the arc-shaped plate 25 is blown and scraped off, the damping return spring 27 drives the arc-shaped plate 25 and the hollow sliding tube 35 to return to the upward position. The first air inlet 33 and the second air inlet 36 are staggered to disconnect the air source. The air guide connecting seat 41 has no air supply. The air outlet 40 stops spraying air. The turntable 7 automatically stops rotating after losing the jet thrust. The entire pneumatic self-cleaning mechanism stops at the same time. This structure divides the same air source into two purging branches. One branch blows downwards directly onto the surface of the curved plate 25 to remove clumps of oil stains, while the other branch uses tangential jets to drive the rotating disc 7 to scrape, significantly improving the removal effect of stubborn sticky residues. No additional motor is needed to drive the disc 7; mechanical scraping can be achieved using only the purging air source, reducing overall energy consumption and component configuration, eliminating the risk of oil stains accumulating in the cavity after shutdown, and reducing the frequency of manual disassembly and maintenance.

[0035] For example, such as Figure 1 , Figure 7 , Figure 8 As shown, the present invention also includes a mounting base plate 45 fixedly assembled on the outer side of the upper arc-shaped housing 2; multiple sets of threaded mounting holes 46 are opened on the mounting base plate 45, and the threaded mounting holes 46 are locked and fixed to the upper surface of the horizontal spiral separator by bolts; a lifting handle 47 is fixedly provided on the outer side of the mounting base plate 45.

[0036] When using the protective housing, the mounting base plate 45 is attached to the top surface of the horizontal spiral separator, the threaded mounting holes 46 are aligned, and the bolts are inserted and tightened to complete the firm connection between the upper arc-shaped housing 2 and the main unit, and quickly complete the sealed assembly of the solid phase discharge chamber 5. When the equipment is under maintenance, the bolts are loosened, and the upper arc-shaped housing 2 can be lifted directly with the help of the lifting handle 47 to facilitate opening the inside of the chamber for maintenance.

[0037] In use, the upper arc-shaped shell 2 is attached to the top surface of the horizontal spiral separator via the mounting base plate 45, and bolts are inserted and locked in place through the threaded mounting holes 46. Then, the shell is fastened with the hinge shaft between the upper arc-shaped shell 2 and the lower arc-shaped shell 3 as the rotating shaft. The two sets of semi-annular sealing plates 4 are spliced ​​together to form an annular sealing structure, which completely covers the solid phase discharge end of the horizontal spiral separator and forms a closed solid phase discharge chamber 5. The mixed liquid phase or slurry generated from the pretreatment is transported to the interior of the horizontal screw separator 1. The oil, water and slag three-phase separation is completed by the differential rotation of the drum and the screw pusher. After separation, waste oil that can be used to make biodiesel, sewage to be treated and solid waste residue are produced respectively. The densest sticky kitchen waste residue is continuously pushed to the solid phase discharge end. It is splashed at high speed by centrifugal force and adheres to the inner wall of the upper and lower arc shells 3 of the solid phase discharge chamber 5. The loose residue slides down by its own weight onto the two sets of swing plates 9 at the bottom of the discharge pipe 8 and continues to accumulate. As the weight of the waste residue accumulated above the swing plate 9 increases, and the load exceeds the preset elasticity threshold of the torsion spring hinge shaft 10, the two sets of swing plates 9 expand outward synchronously, and the discharge port diameter expands synchronously, accelerating the falling speed of the waste residue and avoiding bridging and blockage of the pipe by the residue; the swing plate 9 pulls the arc-shaped rack 13 to make arc-shaped displacement through the connecting rod 12, and the arc-shaped rack 13 meshes with the transmission gear 22 to drive it to rotate. The power is transmitted to the speed change gear 19 through the one-way bearing 21 and the drive shaft 17. The speed change gear 19 passes through the meshing window 20 and meshes with the outer edge teeth of the drive disk 15, driving the turntable 7 and the circumferential elastic cleaning plate 31 to rotate in a circular motion; the elastic cleaning plate 31 on the multiple fixed pipes 30 closely adheres to the inner wall of the upper arc-shaped shell 2, the lower arc-shaped shell 3, and the arc plate 25 and scrapes back and forth, scraping off all the adhering oil stains to the discharge pipe 8 and being discharged with the waste residue. No motor, sensor or other electronic control components are required, making it suitable for oily and humid working conditions; As waste residue continues to be discharged from the swing plate 9 and the load-bearing weight decreases, the torsion spring hinge shaft 10 rebounds and pulls the two swing plates 9 inward to reset. The arc rack 13 moves back in the opposite direction with the swing plate 9 and drives the transmission gear 22 to rotate freely. At this time, the one-way bearing 21 slips and cuts off the reverse power. The speed change gear 19, drive disc 15, and turntable 7 remain stationary. The elastic cleaning plate 31 stops scraping and waits for the next round of waste residue accumulation to trigger the self-cleaning action. After the equipment stops, there is no continuous impact of high-speed material on the arc-shaped plate 25. The material on the surface of the arc-shaped plate 25 presses down on the positioning slide plate 26 by its own weight, and moves down along the snap-fit ​​groove 24 to compress the damping return spring 27 and squeeze the elastic supports 28 at both ends. The arc-shaped plate 25 simultaneously pulls the hollow sliding tube 35 to slide vertically down. The second air inlet 36 on the hollow sliding tube 35 is aligned with the first air inlet 33 of the air inlet seat 32 to conduct the external high-pressure air source. The airflow is divided into two paths that work simultaneously. The first path of airflow flows into the air intake cavity 37 inside the arc-shaped plate 25 and is sprayed downwards from the one-way air outlet 29 to blow away stubborn oil stains on the surface of the arc-shaped plate. The second path of airflow is delivered to the air guide connecting seat 41 through the branch air outlet 42 and the hose 43, and then splits to the air guide through hole 44 in the mounting groove 6. The airflow continues to flow into the annular air intake cavity 39 of the turntable 7 and is sprayed out from the tangential air outlet 40 of the fixed pipe 30. Relying on the reverse thrust, the turntable 7 and the elastic cleaning plate 31 are driven to rotate again, which, together with the airflow, strengthens the blowing and scraping of the entire cavity. This achieves automatic start of pneumatic deep cleaning after shutdown, without the need for manual disassembly and rinsing. After the oil stains on the surface of the arc-shaped plate 25 are completely blown off by the airflow and the load is greatly reduced, the damping return spring 27 rebounds and pushes the positioning slide plate 26 and the arc-shaped plate 25 to move upward as a whole. The hollow sliding tube 35 rises synchronously, the first air inlet 33 and the second air inlet 36 are misaligned and disconnect the air source, the two airflows stop output synchronously, the jet thrust disappears, the turntable 7 stops rotating automatically, and the whole pneumatic purging mechanism resets and goes into standby mode. After the equipment is completely shut down and depressurized, loosen the locking bolts of the mounting base plate 45, and lift the upper arc-shaped housing 2 by holding the lifting handle 47. This will fully open the internal structure of the solid phase discharge chamber 5, the turntable 7, and the transmission components, allowing for the inspection and replacement of parts. After the inspection and maintenance are completed, the housing locking bolts can be tightened again to restore the equipment to use.

[0038] Example 2 This embodiment further defines the circumferential fit between the two sets of air guide holes 44 and the several air inlet slots 38.

[0039] To solve the above problems, this embodiment uses the circumference corresponding to the outer periphery of the turntable 7 as a reference, and determines the arc length formed along the circumference between the circumferential center lines of two adjacent air intake slots 38 as one air intake slot circumferential pitch.

[0040] Two sets of air guide holes 44 are offset along the circumference of the mounting groove 6. The interval between the circumferential center lines of the two sets of air guide holes 44 is formed by an integer number of complete circumferential pitches of the air intake groove and half of the circumferential pitch of the air intake groove, so that the circumferential position of one set of air guide holes 44 relative to the air intake groove 38 is offset from the circumferential position of the other set of air guide holes 44 relative to the air intake groove 38 by half of the circumferential pitch of the air intake groove.

[0041] The circumferential pitch of one-half of the air intake slot constitutes the main geometric constraint between the two sets of air guide holes 44 in this embodiment. The two sets of air guide holes 44 are in mutually staggered circumferential positions within a periodic distribution range of the air intake slot 38, such that when one set of air guide holes 44 corresponds to the middle or near the middle of the air intake slot 38, the other set of air guide holes 44 corresponds to the transition position between two adjacent air intake slots 38; as the turntable 7 continues to rotate, the overlap state between the two sets of air guide holes 44 and the air intake slot 38 changes sequentially.

[0042] To ensure that the above-mentioned circumferential misalignment can form an actual ventilation area when the turntable 7 is in any stopped position, the sum of the effective opening width of each group of air guide holes 44 along the circumference of the turntable 7 and the opening width of a single air inlet groove 38 along the circumference of the turntable 7 is greater than half of the circumferential pitch of one air inlet groove.

[0043] The effective circumferential opening width of the air guide hole 44 is the actual opening width that allows the air guide hole 44 to form airflow communication with the air intake groove 38; the circumferential opening width of the air intake groove 38 refers to the actual opening width of the air intake groove 38 facing the air guide hole 44 and able to receive airflow.

[0044] Through the aforementioned coordination, the two sets of air guide holes 44 each have a margin of overlap in the air coverage area formed upward around the 7th circumference of the turntable. As one set of air guide holes 44 gradually moves away from the corresponding air intake slot 38, the other set of air guide holes 44 gradually enters the opening range of the other air intake slot 38, thereby preventing the two sets of air guide holes 44 from simultaneously completely corresponding to the solid portion between adjacent air intake slots 38.

[0045] After the equipment stops, the oil residue adhering to the surface of the arc-shaped plate 25 moves downwards along with the positioning slide plate 26 due to its own weight, compressing the damping return spring 27. Simultaneously, the arc-shaped plate 25 drives the hollow sliding tube 35 to slide downwards along the air inlet seat 32, aligning and connecting the second air inlet 36 with the first air inlet 33.

[0046] The external high-pressure airflow enters the hollow sliding tube 35 sequentially through the air inlet connector 34, the first air inlet 33, and the second air inlet 36. Part of the airflow enters the air inlet cavity 37 inside the arc-shaped plate 25 and is ejected through the one-way air outlet 29; the other part enters the air guide connecting seat 41 through the branch air outlet 42 and the hose 43, and is then delivered to the two sets of air guide holes 44 respectively.

[0047] Since the two sets of air guide holes 44 are offset from the air intake slot 38 by half the circumferential pitch of the air intake slot, even if the turntable 7 stops at any circumferential position formed by the previous scraping action, the two sets of air guide holes 44 will not be in the same position in the periodic distribution of the air intake slot 38 at the same time.

[0048] When one set of air guide holes 44 approaches the solid portion between adjacent air intake slots 38, the other set of air guide holes 44 is offset from the air intake slot 38 by half a circumferential pitch, thus corresponding to the opening range of the other air intake slot 38. Furthermore, the sum of the circumferential opening widths of the air guide holes 44 and the air intake slot 38 is greater than half a circumferential pitch of the air intake slot, ensuring that at least one set of air guide holes 44 can form an overlapping area with one of the air intake slots 38, possessing an actual flow cross-section.

[0049] Therefore, after the high-pressure airflow is connected between the first air inlet 33 and the second air inlet 36, it can enter the annular air inlet chamber 39 in a timely manner, and is not easily completely blocked by the outer solid part of the turntable 7 due to the different stopping positions of the turntable 7. After the airflow enters the annular air inlet chamber 39, it is distributed to each fixed pipe 30 along the annular air inlet chamber 39, and is ejected from the air outlet 40 on the side of the fixed pipe 30 along the tangential direction of the drive disc 15.

[0050] The airflow ejected from the air outlet 40 generates a circumferential reverse thrust on the fixed pipe 30 and the turntable 7, enabling the turntable 7 to overcome the sealing rotation resistance between itself and the mounting groove 6, as well as the initial frictional resistance between the elastic cleaning plate 31 and the inner wall of the solid phase discharge chamber 5, thus driving the fixed pipe 30 and the elastic cleaning plate 31 to start rotating.

[0051] During the rotation of turntable 7, the air intake groove 38 rotates synchronously with turntable 7. When the overlapping area between one set of air guide holes 44 and the corresponding air intake groove 38 gradually decreases, the overlapping area between the other set of air guide holes 44 and the other air intake groove 38 gradually increases, and the two sets of air guide holes 44 thus form an alternating air supply state along the circumference of turntable 7.

[0052] This alternating sequence prevents two sets of air guide holes 44 from simultaneously entering the non-open area between adjacent air intake slots 38, ensuring a continuous total effective ventilation area into the annular air intake chamber 39. When the air supply capacity of one set of air guide holes 44 decreases, the other set of air guide holes 44 can supplement the airflow into the annular air intake chamber 39, reducing periodic fluctuations in airflow and pressure within the annular air intake chamber 39.

[0053] The annular air intake chamber 39 circumferentially distributes the airflow alternately input from the two sets of air guide holes 44, enabling the air outlets 40 on each fixed pipe 30 to maintain a relatively continuous airflow state. The reverse thrust of the airflow on the turntable 7 remains relatively stable, reducing intermittent pauses and repeated starts during the rotation of the turntable 7.

[0054] The turntable 7 drives the elastic cleaning plate 31 to continuously pass over the surfaces to be cleaned, corresponding to the arc-shaped plate 25, the upper arc-shaped shell 2, and the lower arc-shaped shell 3, scraping the oil residue adhering to the inner wall of the solid phase discharge chamber 5. Because the airflow thrust fluctuation decreases during the rotation of the turntable 7, the elastic cleaning plate 31 can maintain relatively continuous relative sliding with the surface to be cleaned, reducing the jerking caused by the repeated switching between static friction and sliding friction.

[0055] The continuous rotation of turntable 7 can also reduce the intermittent impact of the leading edge of the elastic cleaning plate 31 on the inner wall of the housing and the clump of oil residue, so that the elastic cleaning plate 31 can smoothly pass over the local accumulation area within its own elastic deformation range. The scraped oil residue enters the discharge pipe 8 along the inner wall of the solid phase discharge chamber 5 and is discharged outward by the swing discharge assembly.

[0056] After the accumulated material on the surface of the arc-shaped plate 25 is blown away and scraped off, the load on the arc-shaped plate 25 is reduced, and the damped return spring 27 pushes the positioning slide plate 26 and the arc-shaped plate 25 to return to their original position. The hollow sliding tube 35 moves upward with the arc-shaped plate 25, causing the second air inlet 36 to be misaligned with the first air inlet 33. The air guide connecting seat 41 loses its airflow supply, the two sets of air guide holes 44 stop supplying air to the air inlet slot 38, the airflow back thrust of the air outlet nozzle 40 disappears, and the turntable 7 and the elastic cleaning plate 31 stop rotating.

[0057] This embodiment limits the two sets of air guide holes 44 to be offset from the uniformly distributed air inlet slots 38 by half a circumferential pitch, so that the turntable 7 can retain the initial air intake passage when it is in different stopping positions, thereby improving the pneumatic start reliability of the turntable 7 after the air source is connected; through the circumferential opening covering relationship between the air guide holes 44 and the air inlet slots 38, the two sets of air guide holes 44 form an alternating continuous air supply during the rotation of the turntable 7, reducing the periodic fluctuation of the airflow back thrust, and making the rotation and scraping action of the elastic cleaning plate 31 more continuous and stable.

[0058] When encountering difficulties in pneumatically starting the turntable 7, increasing the opening size of the air guide holes 44 or the air inlet slot 38 can be considered. However, simply enlarging the opening cannot change the relationship between the synchronous entry and exit of the two sets of air guide holes 44 into the opening area in the periodic distribution of the air inlet slot. If the two sets of air guide holes 44 are in the same or similar circumferential phase, their effective ventilation area may still decrease simultaneously, and the periodic fluctuation of airflow will still exist.

[0059] Simply changing the distance between the two sets of air guide holes 44 cannot guarantee that they will form a stable alternating connection in every intake slot distribution cycle. The misalignment between the two sets of air guide holes 44 needs to correspond to the circumferential pitch of the adjacent intake slots 38 so that when one set of air guide holes 44 leaves the intake slot 38, the other set of air guide holes 44 enters the other intake slot 38.

[0060] In this embodiment, the misalignment between the two sets of air guide holes 44 is limited to the sum of the circumferential pitch of an integer number of complete air intake slots and half the circumferential pitch of one air intake slot, so that the two sets of air guide holes 44 maintain a phase difference of half a pitch in each air intake slot distribution cycle. This positional relationship is further coordinated with the circumferential opening coverage relationship of the air guide holes 44 and the air intake slot 38, so that the two staggered ventilation areas have an overlap margin.

[0061] The above-mentioned limitations first eliminate the initial air intake dead point that may be formed when the turntable 7 stops at any position, so that the turntable 7 can start reliably after the air source is connected; at the same time, the two sets of air guide holes 44 alternately supplement the airflow into the annular air intake chamber 39 during the rotation of the turntable 7, reducing the periodic fluctuation of the jet thrust of the air outlet 40, thereby reducing the jerking and intermittent impact during the rotation and scraping process of the elastic cleaning plate 31.

[0062] This scheme addresses the periodic alignment contradiction between the air guide holes 44 and the air intake slots 38 by providing targeted geometric constraints. Its effectiveness stems from the mutual matching between the circumferential phase difference of the two sets of air guide holes 44 and the circumferential pitch and opening coverage of the air intake slots 38.

[0063] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automated oil-water-sludge separation device for kitchen waste oil, characterized in that, The system includes a horizontal spiral separator body (1), which is covered with a protective shell. The protective shell consists of an upper arc-shaped shell (2) and a lower arc-shaped shell (3). The upper arc-shaped shell (2) and the lower arc-shaped shell (3) are hinged on one side by a hinge shaft. The inner walls of the upper arc-shaped shell (2) and the lower arc-shaped shell (3) are fixedly connected with semi-annular sealing plates (4). The two sets of semi-annular sealing plates (4) are joined together to form an annular sealing structure and are snapped onto the outside of the solid phase discharge end of the horizontal spiral separator body (1). The semi-annular sealing plates (4) and the end of the protective shell enclose a solid phase discharge cavity (5). The upper arc-shaped shell (2) and the lower arc-shaped shell (3) are both provided with an installation groove (6) on the inner side of one end. The installation groove (6) is sealed and rotated with a turntable (7). The turntable (7) is equipped with a cleaning component for scraping off oil stains and residues on the inner wall of the solid discharge chamber (5) on the outer side. The lower end of the lower arc-shaped shell (3) is connected to a vertically arranged discharge pipe (8). The bottom of the discharge pipe (8) is equipped with a swing discharge component that swings adaptively based on the weight of the material adhesion and accumulation. A transmission component is provided on the outer side of the lower arc-shaped shell (3). When the swing discharge component swings, the turntable (7) and the cleaning component are driven to rotate synchronously through the transmission component to scrape and clean the inner wall of the solid discharge chamber (5).

2. The automated oil-water-sludge separation device for kitchen waste oil according to claim 1, characterized in that, The oscillating discharge assembly includes two sets of oscillating plates (9) arranged at an angle below the discharge pipe (8). A torsion spring hinge shaft (10) passes through the middle of the oscillating plate (9). The two ends of the torsion spring hinge shaft (10) are fixedly assembled to the side wall of the discharge pipe (8) by support members (11). An arc-shaped rack (13) is fixed on the upper part of the oscillating plate (9) by a connecting rod (12). The arc-shaped rack (13) meshes with the transmission assembly for transmission.

3. The automated oil-water-sludge separation device for kitchen waste oil according to claim 2, characterized in that, Both the upper arc-shaped housing (2) and the lower arc-shaped housing (3) have drive slots (14) on the side near the mounting slot (6); the turntable (7) is fixedly connected to the drive disk (15) on the side away from the cleaning component, the drive disk (15) is located in the drive slot (14), and the tooth structure (16) is evenly arranged around the outer edge of the drive disk (15); the tooth structure (16) meshes with the arc-shaped rack (13) through the transmission component.

4. The automated oil-water-sludge separation device for kitchen waste oil according to claim 3, characterized in that, The transmission assembly includes a drive shaft (17), which is rotatably connected to a support seat (18) fixed to the lower arc-shaped housing (3). A speed-changing gear (19) is coaxially connected to the drive shaft (17). The lower part of the lower arc-shaped housing (3) has a meshing window (20) that communicates with the drive groove (14). The speed-changing gear (19) meshes with the tooth structure (16) through the meshing window (20). The drive shaft (17) is equipped with a transmission gear (22) that meshes with the arc-shaped rack (13) through a one-way bearing (21).

5. The automated oil-water-sludge separation device for kitchen waste oil according to claim 4, characterized in that, The inner wall of the upper arc-shaped shell (2) is provided with an arc-shaped assembly groove (23), and a snap-fit ​​groove (24) is provided on the inner side of the arc-shaped assembly groove (23); an arc-shaped plate (25) is assembled in the arc-shaped assembly groove (23), and a positioning slide plate (26) is fixedly connected to the outer side of the arc-shaped plate (25). The positioning slide plate (26) is slidably snapped into the snap-fit ​​groove (24), and multiple sets of damping return springs (27) are provided between the lower surface of the positioning slide plate (26) and the bottom wall of the snap-fit ​​groove (24). The arc-shaped plate (25) is equipped with elastic supports (28) at both ends. When a large amount of kitchen oil residue adheres and accumulates on the surface of the arc-shaped plate (25), the weight of the material causes the arc-shaped plate (25) and the positioning slide plate (26) to slide slightly downward and compress the damping reset spring (27). Several one-way air outlet nozzles (29) are set on the inner side of the arc-shaped plate (25). The top of the upper arc-shaped shell (2) is fixedly installed with a telescopic connecting air supply component. During the process of the arc-shaped plate (25) being pressed down, the telescopic connecting air supply component automatically connects to the external air source. The high-pressure airflow is sprayed out through the one-way air outlet nozzles (29) to blow away the sticky oil stains and residues attached to the inner wall of the solid phase discharge chamber (5).

6. The automated oil-water-sludge separation device for kitchen waste oil according to claim 5, characterized in that, The cleaning component includes multiple fixed tubes (30) evenly distributed circumferentially along the side of the turntable (7) away from the drive plate (15), and each fixed tube (30) is equipped with an elastic cleaning plate (31).

7. The automated oil-water-sludge separation device for kitchen waste oil according to claim 6, characterized in that, The telescopic connecting air supply assembly includes an air inlet seat (32) fixedly installed on the top surface of the upper arc-shaped housing (2); a first air inlet hole (33) is opened on the side wall of the air inlet seat (32), and the first air inlet hole (33) is connected to an external air inlet connector (34); a hollow sliding tube (35) is vertically sealed and slidably assembled inside the air inlet seat (32), and a second air inlet hole (36) is opened at the upper end of the hollow sliding tube (35). Under normal conditions, the second air inlet hole (36) is located above the first air inlet hole (33); The lower end of the hollow sliding tube (35) passes through the upper arc-shaped shell (2) and is fixedly connected to the arc-shaped plate (25); the arc-shaped plate (25) has an air inlet cavity (37) that communicates with the one-way air outlet nozzle (29), and the air inlet cavity (37) is connected to the internal pipeline of the hollow sliding tube (35).

8. The automated oil-water-sludge separation device for kitchen waste oil according to claim 7, characterized in that, The turntable (7) has several air inlet slots (38) evenly distributed around its outer circumference. The turntable (7) has an annular air inlet chamber (39) connected to the air inlet slots (38). The fixed pipe (30) has several sets of air outlet nozzles (40) connected to the side of the fixed pipe (30) that are tangential to the drive disc (15). The fixed pipe (30) is connected to the annular air inlet chamber (39). When the airflow is ejected outward through the air outlet nozzles (40), the turntable (7) is driven to rotate. The top of the upper arc-shaped shell (2) is fixedly provided with a gas guide connecting seat (41), and the upper end of the hollow sliding tube (35) is provided with a branch gas outlet (42). The gas guide connecting seat (41) is connected to the branch gas outlet (42) through a hose (43). Two sets of gas guide holes (44) are opened on the inner wall of the mounting groove (6). Both sets of gas guide holes (44) are connected to the internal air passage of the gas guide connecting seat (41).

9. An automated oil-water-sludge separation device for kitchen waste oil according to claim 8, characterized in that, An mounting base plate (45) is fixedly mounted on the outer side of the upper arc-shaped shell (2); multiple sets of threaded mounting holes (46) are opened on the mounting base plate (45), and the threaded mounting holes (46) are locked and fixed to the upper surface of the horizontal spiral separator by bolts; a lifting handle (47) is fixed on the outer side of the mounting base plate (45).

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