Multi-stage separation device for waste grease

Abstract

The utility model relates to the technical field of waste grease separation, and discloses a multistage separation device for waste grease, which comprises a separation mechanism, the top end of the separation mechanism is slidably connected with a filtering mechanism, the right end of the separation mechanism is fixedly connected with a driving mechanism, and the right end of the driving mechanism is fixedly connected with a centrifugal mechanism. The top side of the centrifugal mechanism is fixedly connected with a power mechanism, the right end of the centrifugal mechanism is fixedly connected with a right-angle pipe, the inside of the right-angle pipe is slidably connected with a filter element mechanism, the outside of the right-angle pipe is slidably connected with a quick release mechanism, and the separation mechanism comprises a separation barrel. According to the utility model, fine impurities are separated through the powerful centrifugal action generated by the rotary drum of the centrifugal mechanism, and finally molecular-level purification is realized through the filter element mechanism, four-layer progressive filtration, filter paper, filter cloth, a microporous filter membrane and a ceramic filter element, so that multi-level separation is realized, and the separation effect is further improved.

Description

Technical Field

[0001] This utility model relates to the field of waste oil separation technology, and in particular to a multi-stage separation device for waste oil. Background Technology

[0002] Waste oil recycling primarily produces biomass oil and aviation fuel. By separating waste oil for reprocessing, multi-stage separation devices can more thoroughly separate different components from the waste oil through multiple separation stages. For example, primary separation removes most solid impurities and moisture, intermediate separation further purifies the oil, and advanced separation yields oil products with even higher purity, thus improving the efficiency of the entire separation process.

[0003] Taking advantage of the density difference between oil and water, wastewater containing grease is introduced into containers such as sedimentation tanks or oil storage tanks for settling, where oil droplets float to the surface and form an oil layer. For example, in the grease traps of small catering businesses, the flow rate of oily wastewater is slowed down in the grease trap, causing the grease to float and accumulate, and then it is collected by an oil skimming device.

[0004] In existing technologies, some waste oil separation processes utilize the density difference between oil and water. Gravity separation technology is mainly suitable for separating suspended and dispersed oil in catering wastewater, but it is not effective in removing dissolved or emulsified oil. If the waste oil contains a large amount of dissolved or emulsified oil, relying solely on gravity separation technology may not achieve the desired separation effect. Therefore, to address these shortcomings, a multi-stage separation device for waste oil is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a multi-stage separation device for waste oil, which aims to improve the problem that some existing waste oil separation devices only use gravity separation technology and cannot completely separate internal impurities.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A multi-stage separation device for waste oil includes a separation mechanism, a filter mechanism slidably connected to the top of the separation mechanism, a drive mechanism fixedly connected to the right end of the separation mechanism, a centrifugal mechanism fixedly connected to the right end of the drive mechanism, a power mechanism fixedly connected to the top side of the centrifugal mechanism, a right-angle tube fixedly connected to the right end of the centrifugal mechanism, a filter element mechanism slidably connected inside the right-angle tube, and a quick-release mechanism slidably connected to the outside of the right-angle tube. The separation mechanism includes a separation barrel, an inverted conical ring fixedly connected to the bottom inside the separation barrel, multiple arc-shaped rings fixedly connected to the top inside the separation barrel, and an auxiliary component fixedly connected to the top inside the separation barrel. The filter mechanism includes a filter screen, the filter screen slidably connected to the top of the separation barrel, side plates fixedly connected to both sides of the filter screen, and a U-shaped column fixedly connected to the top side of the side plates.

[0008] The above technical solution achieves efficient separation through the synergistic action of the separation mechanism, filtration mechanism, drive mechanism, centrifugation mechanism, and filter element mechanism. The inverted conical ring and arc-shaped ring inside the separation tank form a grease settling channel. The filtration mechanism achieves primary solid-liquid separation through the filter screen and side plate. The drive mechanism drives the centrifugation mechanism to rotate and generate centrifugal force. The power mechanism provides rotational power. The filter element mechanism inside the right-angle tube performs fine filtration. The quick-release mechanism facilitates filter element replacement. Auxiliary components enhance the separation effect. The U-shaped column assists in the positioning of the filter screen. This enables multi-stage continuous separation of waste grease, improving separation efficiency and ease of operation.

[0009] As a further description of the above technical solution:

[0010] The drive mechanism includes an oil outlet pipe, the left end of which is fixedly connected to the right end of the separator, and a pump body is fixedly connected to the right end of the oil outlet pipe. An oil inlet pipe is fixedly connected to the output end of the pump body.

[0011] The above technical solution achieves grease transport by connecting the oil outlet pipe to the separation tank, and the pump provides power to force the grease through the oil inlet pipe into the centrifugal mechanism, thereby realizing the directional flow and pressure transport of grease in the separation device, providing a continuous and stable feeding guarantee for subsequent centrifugal separation.

[0012] As a further description of the above technical solution:

[0013] The centrifugation mechanism includes a centrifuge barrel, the left end of which is fixedly connected to the right end of the oil inlet pipe. A connecting cone is fixedly connected to the top of the inside of the centrifuge barrel, and a centrifuge cylinder is fixedly connected inside the connecting cone. A cover plate is fixedly connected to the top of the centrifuge barrel by bolts, and the bottom end of the connecting cone is fixedly connected to the right end of the oil inlet pipe.

[0014] The above technical solution achieves grease input by connecting the centrifuge barrel and the oil inlet pipe, the connecting cone and the centrifuge barrel form a centrifugal separation chamber, the cover plate is fixed with bolts to ensure sealing, and the bottom end of the connecting cone is connected to the oil inlet pipe to form a continuous flow channel. Under the drive of the power mechanism, centrifugal force is generated to achieve efficient separation of grease and impurities.

[0015] As a further description of the above technical solution:

[0016] The power mechanism includes a protective column, the bottom of which is fixedly connected to the bottom of the cover plate. A motor is fixedly connected inside the protective column, and a rotating shaft is fixedly connected to the drive end of the motor. Two limiting plates are fixedly connected to the bottom end of the rotating shaft, and multiple rotating drums are fixedly connected to the outside of the rotating shaft.

[0017] The above technical solution provides stable support by fixing protective columns under the cover plate, drives the rotating shaft of the motor to rotate the drum at high speed, and prevents the axial displacement of the rotating shaft by the limiting plate, thus providing stable power for the centrifugal mechanism. At the same time, the centrifugal force generated by the rotation of the drum achieves effective separation of grease and impurities, ensuring the continuity and stability of the separation process.

[0018] As a further description of the above technical solution:

[0019] The filter element mechanism includes a filter tube, the filter tube is slidably connected to the bottom end of the right-angle tube, filter paper is fixedly connected to the top end of the filter tube, filter cloth is fixedly connected to the middle of the inner wall of the filter tube, a microporous filter membrane is fixedly connected to the bottom end of the filter tube, a ceramic filter element is fixedly connected to the bottom end of the filter tube, and the left end of the right-angle tube is fixedly connected to the right end of the centrifuge tank.

[0020] The above technical solution achieves quick assembly and disassembly by sliding the filter tube inside the right-angle tube. The filter paper, filter cloth, microporous filter membrane and ceramic filter element form a multi-stage gradient filtration. The right-angle tube connects to the centrifuge tank to realize the oil transport. This structure realizes the step-by-step separation from coarse filtration to fine filtration, effectively improving the purity of oil and separation efficiency, while facilitating the maintenance and replacement of the filter element.

[0021] As a further description of the above technical solution:

[0022] The quick-release mechanism includes a sliding ring, the inner wall of which is slidably connected to the outside of the right-angle tube. Fixed posts are fixedly connected to both ends of the sliding ring. Springs are sleeved on the outside of the fixed posts. Positioning plates are slidably connected to the outside of the fixed posts. Transmission plates are fixedly connected to the inside of both ends of the sliding ring. Triangular plates are slidably connected to the adjacent sides of the two transmission plates. Semi-rhomboid plates are fixedly connected to the adjacent sides of the two triangular plates.

[0023] The above technical solution achieves position adjustment by sliding the sliding ring outside the right-angle tube, the fixed column and spring provide elastic reset function, the positioning plate restricts the movement stroke, and the transmission plate and triangular plate work together to drive the semi-rhomboid plate to move, realizing the rapid locking and releasing of the filter element mechanism. This ensures the sealing during filtration and facilitates quick filter element replacement by operators, improving equipment maintenance efficiency.

[0024] As a further description of the above technical solution:

[0025] The two positioning plates are fixedly connected to the left and right sides of the right-angle tube respectively on their adjacent sides, and the bottom side of the positioning plates is fixedly connected to the top of the spring.

[0026] The above technical solution involves fixing a positioning plate to both sides of the right-angle tube to form a guide structure, with the top of the spring connected to the bottom of the positioning plate to provide elastic support, ensuring the stability of the quick-release mechanism during sliding. At the same time, the elastic reset function of the spring enables the automatic locking of the semi-rhomboid plate, improving the convenience of filter replacement and the reliability of sealing.

[0027] As a further description of the above technical solution:

[0028] The auxiliary component includes multiple square plates, with the far sides of the multiple square plates fixedly connected to the top of the inner wall of the separation mechanism, and the near sides of the multiple square plates fixedly connected to a positive conical ring. A connecting pipe is fixedly connected to the bottom left end of the separation mechanism.

[0029] The above technical solution involves fixing a square plate to the inner wall of the separation mechanism to form a support frame, connecting the inner side of the square plate with a positive conical ring to form a flow guiding structure, and placing the connecting pipe at the bottom of the separation mechanism to achieve directional discharge of the separated grease. This optimizes the flow path of the grease in the separation tank, improves the efficiency of solid-liquid separation, and ensures that the separated grease can be quickly collected and output.

[0030] As a further description of the above technical solution:

[0031] The two semi-rhomboid plates are slidably connected at their adjacent ends to the inside of the left and right ends of the filter tube, respectively, and the two semi-rhomboid plates are slidably connected at their outer ends to the inside of the left and right ends of the right-angle tube, respectively.

[0032] The above technical solution achieves bidirectional limiting through the internal sliding of the filter tube and the right-angle tube. This structure forms an interlock, which not only ensures the stable fixation of the filter tube during filtration, but also enables synchronous displacement during quick disassembly.

[0033] This utility model has the following beneficial effects:

[0034] 1. In this utility model, large particulate impurities are initially filtered through a detachable filter screen. Then, the flow guiding effect of the positive conical ring and the slow flow design of the arc-shaped ring are used, combined with the increased settling area of ​​the inverted conical ring, to achieve gravity settling separation. Next, the centrifugal mechanism generates a strong centrifugal force to separate fine impurities. Finally, the filter cartridge mechanism uses four layers of progressive filtration: filter paper, filter cloth, microporous filter membrane, and ceramic filter cartridge, to achieve molecular-level purification, thereby achieving multi-stage separation and improving the separation effect.

[0035] 2. In this utility model, by pushing the filter tube inside the right-angle tube and then releasing the force on the sliding ring, the spring's restoring force pushes the sliding ring to drive the transmission plate to slide and abut against the triangular plate. Utilizing the inclined surface of the triangular plate, both triangular plates push a half-rhombus plate to slide towards the same side and engage inside the filter tube to complete the installation, thereby improving replacement efficiency. Attached Figure Description

[0036] Figure 1 This is a perspective view of a multi-stage separation device for waste oil proposed in this utility model;

[0037] Figure 2 This is a schematic diagram of the positive conical ring structure of a multi-stage separation device for waste oil proposed in this utility model;

[0038] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0039] Figure 4 This is a schematic diagram of the structure of a centrifuge tank for a multi-stage separation device for waste oil proposed in this utility model;

[0040] Figure 5 This is a schematic diagram of the sliding ring structure of a multi-stage separation device for waste oil proposed in this utility model;

[0041] Figure 6 for Figure 5 Enlarged view of section B in the middle.

[0042] Legend:

[0043] 1. Separation mechanism; 11. Separation tank; 12. Inverted conical ring; 13. Arc-shaped ring; 14. Auxiliary components; 1401. Square plate; 1402. Positive conical ring; 2. Filtration mechanism; 21. Filter screen; 22. Side plate; 23. U-shaped column; 3. Connecting pipe; 4. Drive mechanism; 41. Oil outlet pipe; 42. Pump body; 43. Oil inlet pipe; 5. Centrifugation mechanism; 51. Centrifuge tank; 52. Connecting cone; 53. Centrifuge cylinder; 54. 6. Cover plate; 6. Power mechanism; 61. Protective column; 62. Motor; 63. Rotating shaft; 64. Limiting plate; 65. Rotating drum; 7. Right-angle tube; 8. Filter element mechanism; 81. Filter tube; 82. Filter paper; 83. Filter cloth; 84. Microporous filter membrane; 85. Ceramic filter element; 9. Quick release mechanism; 91. Sliding ring; 92. Fixed column; 93. Spring; 94. Positioning plate; 95. Transmission plate; 96. Triangular plate; 97. Semi-rhomboid plate. Detailed Implementation

[0044] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0045] Reference Figures 1 to 3 This utility model provides an embodiment of a multi-stage separation device for waste oil, including a separation mechanism 1. The separation mechanism 1 includes a separation tank 11 for separating waste oil. An inverted conical ring 12 is fixedly connected to the bottom of the separation tank 11 to increase the area where waste oil stays, thereby improving the separation effect. Multiple arc-shaped rings 13 are fixedly connected to the top of the separation tank 11 to slow down the flow rate of waste oil. An auxiliary component 14 is fixedly connected to the top of the separation tank 11 to assist in separating waste oil. The auxiliary component 14 includes multiple square plates 1401. The opposite sides of the multiple square plates 1401 are fixedly connected to the top of the inner wall of the separation mechanism 1 by welding, thereby providing support for the multiple square plates 1401.

[0046] Multiple square plates 1401 are fixedly connected to a conical ring 1402 on adjacent sides by welding, thereby providing support for the conical ring 1402 and dispersing waste oil to the outside, allowing the waste oil to flow along the inner wall of the separation tank 11. A filter mechanism 2 is slidably connected to the top of the separation mechanism 1 to filter larger impurities in the waste oil. A connecting pipe 3 is fixedly connected to the bottom left end of the separation mechanism 1 by welding, thereby providing support for the connecting pipe 3. The filter mechanism 2 includes a filter screen 21 to filter larger impurities in the waste oil. The filter screen 21 is slidably connected to the top of the separation tank 11. The separation mechanism 1 restricts the filter screen 21 to slide stably. Side plates 22 are fixedly connected to both sides of the filter screen 21 by welding, thereby providing support for the filter screen 21. A U-shaped column 23 is fixedly connected to the top side of the side plate 22, which facilitates lifting the side plate 22 for replacing the filter screen 21.

[0047] Specifically, the separation mechanism 1 uses a separation tank 11 as the main container, which employs multiple separation processes inside. The inverted conical ring 12 welded to the bottom increases the contact area and prolongs the residence time of the grease. Multiple arc-shaped rings 13 set at the top effectively slow down the flow rate of the grease. The specially designed auxiliary component 14 includes a square plate 1401 and a positive conical ring 1402 welded and fixed, which can evenly disperse the grease to the tank wall to form a circulation, significantly improving the separation efficiency. The filtration mechanism 2 realizes the pre-filtration function through the slidingly connected filter screen 21, which can effectively intercept large particulate impurities. The side plates 22 welded on both sides and the top U-shaped column 23 form a convenient replacement system for easy regular maintenance. The bottom connecting pipe 3 is used to discharge the separated grease. This device achieves efficient separation and purification of waste grease through a three-stage treatment process of "filtration-slow flow-diffusion".

[0048] Reference Figure 1 , Figure 2 and Figure 4The right end of the separation mechanism 1 is fixedly connected to the drive mechanism 4, which is used to extract the waste oil after preliminary filtration. The drive mechanism 4 includes an oil outlet pipe 41, which is used to draw out the waste oil inside the separation mechanism 1. The left end of the oil outlet pipe 41 is fixedly connected to the right end of the separation tank 11 and is fixed by welding process, thereby providing support for the oil outlet pipe 41. The right end of the oil outlet pipe 41 is fixedly connected to the pump body 42. By starting the pump body 42, the oil outlet pipe 41 at the input end is used to extract the waste oil inside the separation mechanism 1. The output end of the pump body 42 is fixedly connected to the oil inlet pipe 43, which is used to input the waste oil. The right end of the drive mechanism 4 is fixedly connected to the centrifugal mechanism 5, which is used to further centrifuge the waste oil. The centrifugal mechanism 5 includes a centrifugal tank 51, which provides support for the centrifugation of waste oil. The left end of the centrifugal tank 51 is fixedly connected to the right end of the oil inlet pipe 43 and is fixed by welding process, thereby providing support for the oil inlet pipe 43.

[0049] A connecting cone 52 is fixedly connected to the top of the centrifuge tank 51 via welding, providing support for the connecting cone 52. A centrifuge cylinder 53 is fixedly connected inside the connecting cone 52, used to store waste oil. A cover plate 54 is bolted to the top of the centrifuge tank 51 for easy removal. The bottom of the connecting cone 52 is fixedly connected to the right end of the oil inlet pipe 43, through which waste oil is introduced into the connecting cone 52. A power mechanism 6 is fixedly connected to the top side of the centrifuge mechanism 5. The power mechanism 6 includes a protective column 61, which provides protection. The bottom side of the protective column 61 is fixedly connected to the bottom side of the cover plate 54 by welding, thereby providing support for the protective column 61. The inside of the protective column 61 is fixedly connected to the motor 62 to provide a drive source. The drive end of the motor 62 is fixedly connected to the rotating shaft 63. The rotating shaft 63 is driven to rotate by starting the motor 62. The bottom end of the rotating shaft 63 is fixedly connected to two limiting plates 64. The limiting plates 64 fit against the inner wall of the connecting cone 52, so that the rotating shaft 63 can rotate stably. The outside of the rotating shaft 63 is fixedly connected to multiple rotating drums 65. The rotating drums 65 rotate at high speed under the drive of the rotating shaft 63, generating a strong centrifugal force on the grease, thereby achieving further separation of different components in the grease.

[0050] Specifically, efficient secondary separation is achieved through the drive mechanism 4 and the centrifugal mechanism 5. The drive mechanism 4 includes an oil outlet pipe 41 welded to the right end of the separation tank 11, which is connected to the pump body 42 to pump the initially separated grease into the centrifugal tank 51 through the oil inlet pipe 43. The centrifugal mechanism 5 includes a connecting cone 52 and a centrifugal cylinder 53 welded inside to form a separation chamber. The removable cover plate 54 facilitates maintenance. The power mechanism 6 at the top drives the rotating shaft 63 through the motor 62, which drives the rotating drum 65 to rotate at high speed to generate centrifugal force. The limiting plate 64, which is attached to the inner wall of the connecting cone 52, ensures the stability of operation. This combined mechanism realizes the continuous processing of waste grease from primary separation to centrifugal refining, which greatly improves the purity of grease and separation efficiency. The protective column 61 provides protection for the motor 62. The whole process forms a complete grease purification production line.

[0051] Reference Figures 4 to 6 A right-angle tube 7 is fixedly connected to the right end of the centrifuge mechanism 5. The waste oil after centrifugation moves upward and flows out through the right-angle tube 7. A filter element mechanism 8 is slidably connected inside the right-angle tube 7 for further fine filtration of the waste oil. The filter element mechanism 8 includes a filter tube 81, which is slidably connected to the bottom end of the right-angle tube 7. The right-angle tube 7 restricts the filter tube 81 to slide stably. A filter paper 82 is fixedly connected to the top of the filter tube 81 to further enhance the filtration effect. A filter cloth 83 is fixedly connected to the middle of the inner wall of the filter tube 81. The filter cloth 83 can intercept finer particles. The filter tube 81 is fixedly connected to the bottom of the filter tube 81. The microporous filter membrane 84 has extremely small pore size, which can filter out impurities at the micron level and perform fine filtration of oil. The bottom of the filter tube 81 is fixedly connected to the ceramic filter element 85. The ceramic filter element 85 has good adsorption performance and filtration accuracy, which can further remove odors and trace impurities from the oil and improve the quality of the oil. The left end of the right-angle tube 7 is fixedly connected to the right end of the centrifuge tank 51 by welding process, thereby providing support for the right-angle tube 7.

[0052] The right-angle tube 7 is externally slidably connected to a quick-release mechanism 9 for easy disassembly. The quick-release mechanism 9 includes a sliding ring 91, the inner wall of which is slidably connected to the outside of the right-angle tube 7. The right-angle tube 7 restricts the sliding ring 91 so that it can slide stably. The left and right ends of the sliding ring 91 are fixedly connected to fixed posts 92. The sliding ring 91 drives the two fixed posts 92 to slide synchronously during the sliding process. The fixed posts 92 are fitted with springs 93. By restricting the springs 93, they can be evenly stressed. The fixed posts 92 are externally slidably connected to positioning plates 94. By restricting the fixed posts 92, they can slide stably. The two positioning plates 94 are fixedly connected to the left and right sides of the right-angle tube 7 respectively by welding, thereby providing support for the two positioning plates 94. The bottom side of the positioning plates 94 is fixedly connected to the top of the springs 93. By fixing the springs 93, they can be evenly stressed.

[0053] Transmission plates 95 are fixedly connected to the inside of both the left and right ends of the sliding ring 91. During the sliding process, the sliding ring 91 drives the two centrifugal mechanisms 5 to slide synchronously. Triangular plates 96 are slidably connected to the adjacent sides of the two transmission plates 95. The transmission plates 95 abut against the triangular plates 96 to prevent the triangular plates 96 from moving. Semi-rhomboid plates 97 are fixedly connected to the adjacent sides of the two triangular plates 96. The triangular plates 96 provide a restriction for the semi-rhomboid plates 97 to prevent them from slipping. The adjacent ends of the two semi-rhomboid plates 97 are slidably connected to the inside of the left and right ends of the filter tube 81. The restriction of the semi-rhomboid plates 97 provides a limiting fixation for the filter tube 81. The outside of the two semi-rhomboid plates 97 are slidably connected to the inside of the left and right ends of the right-angle tube 7. The restriction of the right-angle tube 7 allows the two semi-rhomboid plates 97 to slide stably.

[0054] Specifically, three-stage fine filtration is achieved through the right-angle tube 7 and the filter element mechanism 8. The right-angle tube 7 is welded to the right end of the centrifuge tank 51, and a sliding filter tube 81 is installed inside. The internal structure employs a four-layer progressive filtration system: the top filter paper 82 performs primary filtration, the middle filter cloth 83 intercepts fine impurities, the bottom microporous filter membrane 84 achieves micron-level filtration, and the bottom ceramic filter element 85 adsorbs odors and trace impurities, forming a complete fine filtration channel. The innovatively designed quick-release mechanism 9 includes a sliding ring 91 connected to a fixed column 92 and... Spring 93 provides elastic positioning, driving transmission plate 95 to control the linkage of triangular plate 96 and semi-rhomboid plate 97. When sliding ring 91 is pressed down, semi-rhomboid plate 97 retracts from both sides of filter tube 81, achieving quick disassembly. After being released, spring 93 automatically resets, and semi-rhomboid plate 97 re-clamps filter tube 81. This structure ensures sealing during filtration, simplifies the filter element replacement process, and greatly improves maintenance efficiency. The whole system forms a continuous treatment system from centrifugal separation to multi-stage fine filtration, significantly improving the purification quality of waste oil.

[0055] Working principle: First, waste oil is poured into the filter screen 21. Then, the filter screen 21 filters out larger impurities. At the same time, the filter screen 21 is removed and cleaned by pulling the U-shaped column 23 through the side plate 22. The waste oil after preliminary filtration falls onto the positive cone ring 1402. The inclined surface of the positive cone ring 1402 allows the waste oil to flow to the inner wall of the separation tank 11 and flow slowly on the inner wall of the separation tank 11. After passing through multiple arc rings 13, the flow rate of the waste oil is further slowed down, and then it falls into the inside of the inverted cone ring 12. The inverted cone ring 12 allows more particles to settle at the same time, and then falls to the bottom of the separation mechanism 1. It is further filtered by gravity settling, with impurities falling to the bottom and waste oil floating on the upper layer.

[0056] After gravity settling, the waste grease is extracted by starting the pump body 42 and using the oil outlet pipe 41 at the input end. Then, the waste grease is input into the interior of the connecting cone 52 through the oil inlet pipe 43 at the output end. At this time, the motor 62 drives the rotating shaft 63 to rotate, which in turn drives multiple rotating drums 65 to rotate, so that it can generate centrifugal force on the waste grease, causing impurities to adhere to the inner wall of the connecting cone 52. Then, the waste grease will be transported upward and enter the interior of the filter tube 81 through the right-angle tube 7. The filter paper 82, filter cloth 83, microporous filter membrane 84, and ceramic filter element 85 inside the filter tube 81 will work together to further finely filter the waste grease, thereby completing multi-stage separation.

[0057] To prevent blockage inside the filter element mechanism 8, the sliding ring 91 is pulled upwards. Supported by the positioning plate 94, the sliding ring 91 compresses the spring 93, causing the spring 93 to release its elastic potential energy. This provides a counterforce to the sliding ring 91 for resetting. During the sliding process, the sliding ring 91 also drives the transmission plate 95 to slide, preventing it from pressing against the triangular plate 96. The filter tube 81 is then pulled downwards, pressing against the two semi-rhomboid plates 97 and sliding them to opposite sides. This allows the filter tube 81 to be quickly raised for replacement or maintenance. The filter tube 81 is then pushed into the right-angle tube 7. The force on the sliding ring 91 is released, and the resetting force of the spring 93 pushes the sliding ring 91, causing the transmission plate 95 to slide and press against the triangular plate 96. The inclined surface of the triangular plate 96 causes each of the two triangular plates 96 to push one of the semi-rhomboid plates 97 to slide to the nearest side and engage inside the filter tube 81, completing the installation and improving replacement efficiency.

[0058] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-stage separation device for waste oil, comprising a separation mechanism (1), characterized in that: The top of the separation mechanism (1) is slidably connected to a filter mechanism (2), the right end of the separation mechanism (1) is fixedly connected to a drive mechanism (4), the right end of the drive mechanism (4) is fixedly connected to a centrifugal mechanism (5), the top side of the centrifugal mechanism (5) is fixedly connected to a power mechanism (6), the right end of the centrifugal mechanism (5) is fixedly connected to a right-angle tube (7), the inside of the right-angle tube (7) is slidably connected to a filter element mechanism (8), and the outside of the right-angle tube (7) is slidably connected to a quick-release mechanism (9). The separation mechanism (1) includes a separation barrel (11), an inverted conical ring (12) is fixedly connected to the bottom of the separation barrel (11), a plurality of arc-shaped rings (13) are fixedly connected to the top of the separation barrel (11), and an auxiliary component (14) is fixedly connected to the top of the separation barrel (11). The filtration mechanism (2) includes a filter screen (21), which is slidably connected to the top of the separation tank (11). Side plates (22) are fixedly connected to both the left and right sides of the filter screen (21), and a U-shaped column (23) is fixedly connected to the top side of the side plate (22).

2. The multi-stage separation device for waste oil according to claim 1, characterized in that: The drive mechanism (4) includes an oil outlet pipe (41), the left end of which is fixedly connected to the right end of the separator (11), and the right end of which is fixedly connected to a pump body (42). The output end of the pump body (42) is fixedly connected to an oil inlet pipe (43).

3. The multi-stage separation device for waste oil according to claim 2, characterized in that: The centrifugal mechanism (5) includes a centrifugal barrel (51), the left end of which is fixedly connected to the right end of the oil inlet pipe (43). A connecting cone (52) is fixedly connected to the top of the inside of the centrifugal barrel (51), and a centrifugal cylinder (53) is fixedly connected inside the connecting cone (52). A cover plate (54) is fixedly connected to the top of the centrifugal barrel (51) by bolts, and the bottom end of the connecting cone (52) is fixedly connected to the right end of the oil inlet pipe (43).

4. The multi-stage separation device for waste oil according to claim 3, characterized in that: The power mechanism (6) includes a protective column (61), the bottom side of which is fixedly connected to the bottom side of the cover plate (54). A motor (62) is fixedly connected inside the protective column (61), and a rotating shaft (63) is fixedly connected to the drive end of the motor (62). Two limiting plates (64) are fixedly connected to the bottom end of the rotating shaft (63), and multiple rotating drums (65) are fixedly connected to the outside of the rotating shaft (63).

5. A multi-stage separation device for waste oil according to claim 3, characterized in that: The filter element mechanism (8) includes a filter tube (81), the outside of which is slidably connected to the bottom end of the right-angle tube (7), a filter paper (82) is fixedly connected to the top end of the inside of the filter tube (81), a filter cloth (83) is fixedly connected to the middle of the inner wall of the filter tube (81), a microporous filter membrane (84) is fixedly connected to the bottom end of the inside of the filter tube (81), a ceramic filter element (85) is fixedly connected to the bottom end of the filter tube (81), and the left end of the right-angle tube (7) is fixedly connected to the right end of the centrifuge bucket (51).

6. The multi-stage separation device for waste oil according to claim 5, characterized in that: The quick-release mechanism (9) includes a sliding ring (91), the inner wall of which is slidably connected to the outside of the right-angle tube (7). The left and right ends of the sliding ring (91) are fixedly connected to a fixing post (92). A spring (93) is sleeved on the outside of the fixing post (92). A positioning plate (94) is slidably connected to the outside of the fixing post (92). The left and right ends of the sliding ring (91) are fixedly connected to a transmission plate (95). A triangular plate (96) is slidably connected to the adjacent side of the two transmission plates (95). A semi-rhomboid plate (97) is fixedly connected to the adjacent side of the two triangular plates (96).

7. A multi-stage separation device for waste oil according to claim 6, characterized in that: The two positioning plates (94) are fixedly connected to the left and right sides of the right-angle tube (7) respectively on their adjacent sides, and the bottom side of the positioning plate (94) is fixedly connected to the top of the spring (93).

8. A multi-stage separation device for waste oil according to claim 6, characterized in that: The two semi-rhomboid plates (97) are slidably connected at their respective ends to the left and right ends of the filter tube (81), and the two semi-rhomboid plates (97) are slidably connected at their respective ends to the left and right ends of the right-angle tube (7).

9. A multi-stage separation device for waste oil according to claim 1, characterized in that: The auxiliary component (14) includes multiple square plates (1401), with the far sides of the multiple square plates (1401) fixedly connected to the top of the inner wall of the separation mechanism (1), and the near sides of the multiple square plates (1401) fixedly connected to a positive cone ring (1402), and the bottom left end of the separation mechanism (1) fixedly connected to a connecting pipe (3).

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