Grease separation equipment for kitchen waste treatment
By using motor-driven conveyor rollers and extrusion rollers in conjunction with a mesh belt, the problems of discontinuous grease separation and incomplete cleaning in kitchen waste treatment equipment are solved, achieving efficient grease separation and cleaning results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN KUNYU ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-07-19
- Publication Date
- 2026-06-23
Smart Images

Figure CN224392007U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of kitchen waste treatment technology, and more specifically, to an oil separation device for kitchen waste treatment. Background Technology
[0002] Kitchen waste refers to the waste generated in daily life, food processing, catering services, and institutional catering. Its main sources are family kitchens, restaurants, hotels, canteens, markets, and other food-related industries. Kitchen waste contains extremely high levels of moisture and organic matter, making it easily perishable and producing a foul odor. However, with proper treatment and processing, it can be transformed into new resources. Its high organic matter content allows it to be used as fertilizer or animal feed after strict processing. It can also produce biogas for fuel or power generation, and the grease portion can be used to prepare biofuels, although the grease needs to be separated from the waste.
[0003] A search revealed that utility model patent CN219338704U discloses a kitchen waste oil separation and recycling device, comprising a housing. Inside the housing, a first filter plate and a second filter plate are fixedly installed. A hydraulic jack, fixedly connected to the inner wall of the housing, is positioned above the first filter plate. A pressing plate is fixedly installed at the movable end of the hydraulic jack and slides on the surface of the first filter plate. A feed hopper is fixedly installed on the upper surface of the housing. Two drive sprockets are rotatably installed on the inner wall of the housing, and the two drive sprockets are driven by a first chain. A connecting seat is fixedly installed on one link of the first chain, and a roller brush is rotatably installed in the middle of the connecting seat, with the roller brush in close contact with the surface of the second filter plate. The entire cleaning process is completely automatic, eliminating the need for regular manual cleaning, greatly reducing the workload of workers, and making it more convenient to use.
[0004] However, the above patent still has the following shortcomings: the extrusion plate moves to push the garbage and squeeze out the oil and water inside, but it is not convenient to process the garbage continuously; in addition, the roller brush alone is not convenient to completely clean the oil and small impurities on the filter plate. Therefore, we have proposed an oil separation device for kitchen waste treatment. Utility Model Content
[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide an oil separation device for kitchen waste treatment.
[0006] To solve the above problems, this utility model adopts the following technical solution: an oil separation device for kitchen waste treatment, including a separation box, a discharge chute on one side of the separation box, two conveyor frames fixedly connected to one side of the separation box, conveyor rollers rotatably connected to the inner sides of the two conveyor frames and the inner cavity of the separation box, a mesh belt drivingly connecting the two conveyor rollers, a first motor fixedly installed on the outer side of one of the conveyor frames, the output shaft of the first motor connected to one end of a conveyor roller shaft through a coupling, cleaning mechanisms respectively provided at the ends of the two conveyor frames, a washing mechanism provided on the two conveyor frames, and the inner cavity of the separation box located within the mesh belt. An oil receiving box is fixedly fitted inside the separation box. A pull-out opening is provided on the front of the separation box. A layering box is placed at the bottom of the separation box. The end of the layering box extends through the pull-out opening to the front of the separation box. An oil drain pipe is fixedly fitted on the outside of the oil receiving box. The bottom end of the oil drain pipe extends into the inner cavity of the layering box. Multiple support rollers are rotatably connected to the inner cavity of the separation box and the inner cavity of the mesh belt. Multiple extrusion rollers are rotatably connected to the inner cavity of the separation box and above the mesh belt. Multiple second motors are fixedly installed on the front of the separation box. The output shafts of the second motors are respectively connected to one end of the extrusion roller shaft through couplings. A feed hopper is fixedly fitted on the top of the separation box.
[0007] As a preferred embodiment of this utility model, the cleaning mechanism includes a support frame fixedly connected to the ends of two conveyor frames, a rotating rod rotatably connected between the two support frames, bristles provided on the outer side of the rotating rod, and a third motor fixedly installed on the outer side of one of the support frames. The output shaft of the third motor and the end of the rotating rod are connected by a coupling.
[0008] As a preferred embodiment of this utility model, the cleaning mechanism includes a water spray pipe fixedly sleeved between two conveyor frames. The bottom surface of the water spray pipe is provided with multiple water spray holes. The end of the water spray pipe extends to the outside of the conveyor frame and is fixedly connected to a heating box. The inner cavity of the heating box is provided with an electric heating rod. A water pump is fixedly installed on the outside of the heating box. The output end of the water pump extends to the inner cavity of the heating box. The input end of the water pump is fixedly connected to a water pumping pipe.
[0009] As a preferred embodiment of this utility model, a placement seat is fixedly connected to one side of the separation box, and a water receiving tank is placed on the top surface of the placement seat.
[0010] As a preferred embodiment of this utility model, a maintenance door is hinged to the other side of the separation box.
[0011] In a preferred embodiment of this utility model, the side of the layered box is in contact with the inner wall of the separation box and the inner wall of the pull-out opening.
[0012] In a preferred embodiment of this utility model, the two sides of the mesh belt are respectively attached to the inner wall of the separation box and the inner side of the two conveyor frames, and the top surface of the support roller is in contact with the top of the inner side of the mesh belt.
[0013] Compared with the prior art, the advantages of this utility model are: (1) In this utility model, the first motor drives the conveying roller and the mesh belt to rotate clockwise, and multiple second motors drive multiple extrusion rollers to rotate counterclockwise. The kitchen waste is put into the mesh belt from the feed hopper, and the mesh belt drives the waste to move forward. The rotating extrusion rollers squeeze the waste on the mesh belt, thereby squeezing out the grease in the waste. The squeezed grease falls into the oil collection box through the holes on the mesh belt. The grease collected in the oil collection box is discharged into the layered box through the oil drain pipe, so that the grease is separated into oil and water in the layered box, and the function of continuously processing kitchen waste is realized.
[0014] (2) In this utility model, after the grease in the garbage is squeezed out, the garbage is discharged from the end of the mesh belt. The third motor drives the rotating rod and brush to rotate counterclockwise. The rotation of the brush brush cleans the end of the mesh belt, so that the garbage and small impurities are swept down. In addition, the electric heating rod and water pump are started at regular intervals. The water pump uses the suction of the water pipe to draw the external water source into the inner cavity of the heating box. The electric heating rod heats the water in the inner cavity of the heating box. The heated water enters the inner cavity of the spray pipe, so that the hot water is sprayed down from the spray hole. The hot water is used to rinse the mesh belt to ensure the quality of cleaning the mesh belt. Attached Figure Description
[0015] Figure 1 is a schematic diagram of the overall structure of this utility model.
[0016] Figure 2 is a schematic cross-sectional view of the present invention.
[0017] Figure 3 is a schematic diagram of the separation box of this utility model.
[0018] Figure 4 is a cross-sectional schematic diagram of the heating box of this utility model.
[0019] The following are the labels in the diagram: 1. Separation box; 2. Conveyor frame; 3. Discharge chute; 4. Conveyor roller; 5. Mesh belt; 6. First motor; 7. Cleaning mechanism; 8. Washing mechanism; 9. Oil receiving box; 10. Oil drain pipe; 11. Pull-out port; 12. Layering box; 13. Support roller; 14. Extrusion roller; 15. Second motor; 16. Feed hopper; 17. Support frame; 18. Rotating rod; 19. Brush bristles; 20. Third motor; 21. Placement seat; 22. Water receiving tank; 23. Water spray pipe; 24. Heating box; 25. Electric heating rod; 26. Water pump; 27. Water suction pipe; 28. Water spray hole; 29. Maintenance door. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example 1
[0023] Please refer to Figures 1-4. An oil separation device for kitchen waste treatment includes a separation box 1. A discharge chute 3 is provided on one side of the separation box 1. Two conveyor frames 2 are fixedly connected to one side of the separation box 1. Conveying rollers 4 are rotatably connected to the inner sides of the two conveyor frames 2 and the inner cavity of the separation box 1. A mesh belt 5 is connected between the two conveyor rollers 4. A first motor 6 is fixedly installed on the outer side of one conveyor frame 2. The output shaft of the first motor 6 is connected to one end of the shaft of a conveyor roller 4 via a coupling. Cleaning mechanisms 7 are respectively provided at the ends of the two conveyor frames 2. A washing mechanism 8 is provided on the two conveyor frames 2. An oil collection box 9 is fixedly sleeved inside the inner cavity of the separation box 1, located within the inner cavity of the mesh belt 5. A pull-out opening 11 is provided on the front of the separation box 1. A layered box 12 is placed at the bottom of the inner cavity of the separation box 1. The end of the layered box 12 extends through the pull-out opening 11 to the front of the separation box 1. An oil drain pipe 10 is fixedly sleeved on the outer side of the oil collection box 9. The bottom end extends into the inner cavity of the layer box 12. Multiple support rollers 13 are rotatably connected to the inner cavity of the separation box 1 and the inner cavity of the mesh belt 5. Multiple extrusion rollers 14 are rotatably connected to the inner cavity of the separation box 1 and above the mesh belt 5. Multiple second motors 15 are fixedly installed on the front of the separation box 1. The output shafts of the second motors 15 are respectively connected to one end of the shaft of the extrusion rollers 14 through couplings. A feed hopper 16 is fixedly sleeved on the top of the separation box 1.
[0024] In this embodiment, multiple extrusion rollers 14 are arranged horizontally, and the outer diameter of the multiple extrusion rollers 14 gradually increases, so as to increase the extrusion force on the waste conveyed on the mesh belt 5 by using multiple extrusion rollers 14. In addition, the device is powered by an external power supply and controlled by a controller.
[0025] Specifically, please refer to Figures 1 to 3. The cleaning mechanism 7 includes a support frame 17 fixedly connected to the ends of the two conveyor frames 2. A rotating rod 18 is rotatably connected between the two support frames 17. Brushes 19 are provided on the outer side of the rotating rod 18. A third motor 20 is fixedly installed on the outer side of one support frame 17. The output shaft of the third motor 20 and the end of the rotating rod 18 are connected by a coupling.
[0026] In this embodiment, the end of the bristles 19 can contact the end of the mesh belt 5 so that the end of the mesh belt 5 can be cleaned by using the bristles 19.
[0027] Specifically, please refer to Figures 1, 2 and 4. The cleaning mechanism 8 includes a water spray pipe 23 fixedly sleeved between two conveyor frames 2. The bottom surface of the water spray pipe 23 is provided with multiple water spray holes 28. The end of the water spray pipe 23 extends to the outside of the conveyor frame 2 and is fixedly connected to a heating box 24. The inner cavity of the heating box 24 is provided with an electric heating rod 25. A water pump 26 is fixedly installed on the outside of the heating box 24. The output end of the water pump 26 extends to the inner cavity of the heating box 24. The input end of the water pump 26 is fixedly connected to a water suction pipe 27.
[0028] In this embodiment, the end of the water pump 27 is connected to an external water source so that the water pump 26 can be started to pump the external water source into the inner cavity of the heating box 24.
[0029] Specifically, please refer to Figure 1. A placement seat 21 is fixedly connected to one side of the separation box 1, and a water receiving tank 22 is placed on the top surface of the placement seat 21.
[0030] In this embodiment, the wastewater generated by the cleaning mechanism 8 during the cleaning of the mesh belt 5 is collected through the water receiving tank 22.
[0031] Specifically, please refer to Figure 1. A maintenance door 29 is hinged to the other side of the separation box 1.
[0032] In this embodiment, the inner cavity of the separation box 1 is inspected by opening the maintenance door 29.
[0033] Specifically, please refer to Figures 2 and 3. The side of the layered box 12 fits into the inner wall of the separation box 1 and the inner wall of the pull-out opening 11.
[0034] In this embodiment, the stability of the layered box 12 being inserted into the inner cavity of the separation box 1 from the pull-out port 11 is ensured.
[0035] Specifically, please refer to Figures 1 and 2. The two sides of the mesh belt 5 are respectively attached to the inner wall of the separation box 1 and the inner side of the two conveyor frames 2, and the top surface of the support roller 13 is in contact with the top of the inner side of the mesh belt 5.
[0036] In this embodiment, the inner wall of the separation box 1 and the inner side of the conveyor frame 2 are used to limit the side of the mesh belt 5 to prevent garbage from falling from the side of the mesh belt 5, and the support roller 13 is used to support the mesh belt 5.
[0037] Working Principle: In operation, the first motor 6 is started, driving a conveyor roller 4 to rotate clockwise. The conveyor roller 4 then drives the mesh belt 5 to rotate clockwise. Simultaneously, multiple second motors 15 are started, driving multiple extrusion rollers 14 to rotate counter-clockwise. A third motor 20 is started, driving the rotating rod 18 and brush 19 to rotate counter-clockwise. Kitchen waste is then fed into the inner cavity of the separation box 1 from the feed hopper 16, causing the waste to fall onto the mesh belt 5. The mesh belt 5 propels the waste forward, and the rotating extrusion rollers 14 squeeze the waste on the mesh belt 5, extracting the grease. The extracted grease falls through the holes in the mesh belt 5 into the oil collection box 9. The grease collected in the oil collection box 9 is discharged from the oil drain pipe 10 into the layering box 12, where it settles and separates into oil and water. Finally, the squeezed waste moves from the discharge chute 3 to the outside of the separation box 1 and exits through the mesh belt 5. The ends of the mesh belt 5 are removed, and the brush 19 is rotated to clean the ends of the mesh belt 5, removing debris and small impurities. These are collected in an external collection box. Finally, the electric heating rod 25 and water pump 26 are activated at regular intervals. The water pump 26 uses the suction force of the water pipe 27 to draw water from the external source into the inner cavity of the heating box 24. The electric heating rod 25 heats the water in the inner cavity of the heating box 24. The heated water enters the inner cavity of the spray pipe 23, causing hot water to spray downwards from the spray hole 28. The hot water is used to rinse the mesh belt 5, and the wastewater generated during rinsing is collected in the water receiving tank 22.
[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.
Claims
1. A grease separation device for kitchen waste treatment, comprising a separation box (1), characterized in that: A discharge chute (3) is provided on one side of the separation box (1). Two conveyor frames (2) are fixedly connected to one side of the separation box (1). Conveyor rollers (4) are rotatably connected to the inner sides of the two conveyor frames (2) and the inner cavity of the separation box (1). A mesh belt (5) is connected between the two conveyor rollers (4). A first motor (6) is fixedly installed on the outer side of one of the conveyor frames (2). The output shaft of the first motor (6) is connected to one end of the shaft of a conveyor roller (4) through a coupling. Cleaning mechanisms (7) are provided at the ends of the two conveyor frames (2). A cleaning mechanism (8) is provided on the two conveyor frames (2). An oil receiving box (9) is fixedly fitted into the inner cavity of the separation box (1) and the inner cavity of the mesh belt (5). A pull-out opening (11) is provided on the front of the separation box (1). A layered box (12) is placed at the bottom of the inner cavity of the separation box (1). The end of the layered box (12) extends through the pull-out port (11) to the front of the separation box (1). An oil drain pipe (10) is fixedly sleeved on the outside of the oil receiving box (9). The bottom end of the oil drain pipe (10) extends to the inner cavity of the layered box (12). Multiple support rollers (13) are rotatably connected to the inner cavity of the separation box (1) and the inner cavity of the mesh belt (5). Multiple extrusion rollers (14) are rotatably connected to the inner cavity of the separation box (1) and above the mesh belt (5). Multiple second motors (15) are fixedly installed on the front of the separation box (1). The output shafts of the second motors (15) are connected to one end of the shaft of the extrusion rollers (14) through a coupling. A feed hopper (16) is fixedly sleeved on the top of the separation box (1).
2. The grease separation device for kitchen waste treatment according to claim 1, characterized in that: The cleaning mechanism (7) includes a support frame (17) fixedly connected to the ends of two conveyor frames (2), a rotating rod (18) rotatably connected between the two support frames (17), bristles (19) are provided on the outer side of the rotating rod (18), and a third motor (20) is fixedly installed on the outer side of one of the support frames (17). The output shaft of the third motor (20) and the end of the rotating rod (18) are connected by a coupling.
3. The grease separation device for kitchen waste treatment according to claim 1, characterized in that: The cleaning mechanism (8) includes a water spray pipe (23) fixedly sleeved between two conveyor frames (2). The bottom surface of the water spray pipe (23) is provided with multiple water spray holes (28). The end of the water spray pipe (23) extends to the outside of the conveyor frame (2) and is fixedly connected to a heating box (24). The inner cavity of the heating box (24) is provided with an electric heating rod (25). A water pump (26) is fixedly installed on the outside of the heating box (24). The output end of the water pump (26) extends to the inner cavity of the heating box (24). The input end of the water pump (26) is fixedly connected to a water pump pipe (27).
4. The grease separation device for kitchen waste treatment according to claim 1, characterized in that: A placement seat (21) is fixedly connected to one side of the separation box (1), and a water receiving tank (22) is placed on the top surface of the placement seat (21).
5. The grease separation device for kitchen waste treatment according to claim 1, characterized in that: A maintenance door (29) is hinged to the other side of the separation box (1).
6. The grease separation device for kitchen waste treatment according to claim 5, characterized in that: The side of the layered box (12) is in contact with the inner wall of the separation box (1) and the inner wall of the pull-out opening (11).
7. The grease separation device for kitchen waste treatment according to claim 1, characterized in that: The two sides of the mesh belt (5) are respectively attached to the inner wall of the separation box (1) and the inner side of the two conveyor frames (2), and the top surface of the support roller (13) is in contact with the top of the inner side of the mesh belt (5).