Kitchen waste oil purification device adopting multi-component separation technology

Abstract

The utility model provides a kind of kitchen waste grease purification device using multi-component separation technology, including purification device;The purification device is composed of separation tank, first separator, second separation mechanism and conveyor, the first separator bottom end is installed on the left side of separation tank upper end, ultrasonic generator is installed in the left side of separation tank front end, the first separator is composed of separation bucket, stepped cylindrical separation net cylinder and crushing extrusion mechanism, the stepped cylindrical separation net cylinder is installed in separation bucket interior, the crushing extrusion mechanism is installed in stepped cylindrical separation net cylinder interior, the separation bucket bottom end is equipped with discharge pipe, the second separation mechanism is connected in the discharge pipe bottom end, and the complete multi-component separation link of the "crushing pre-separation-solid liquid depth separation-solid concentrated discharge-moisture recovery" is built in this purification device, and the complex component of kitchen waste "large solid+viscous liquid+tiny impurity" is adapted.

Description

Technical Field

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

[0002] Food waste grease separation is the process of extracting and separating waste grease from food waste. First, impurities such as bones and plastics are removed through crushing and sorting. Then, solid grease is melted by heating. Subsequently, methods such as centrifugation, gravity sedimentation, or pressing are used to separate the grease from water and kitchen residue. The separated waste grease can be processed into biodiesel and other resources for recycling, while simultaneously reducing grease buildup in waste treatment equipment and environmental pollution.

[0003] Chinese Patent No. 202421954035.4 discloses a kitchen waste waste oil separation and recycling device, belonging to the technical field of kitchen waste treatment equipment. It includes a device body, with an inlet at the center of the top of the device body. An inlet frame is fixedly connected to the top of the device body and surrounds the inlet. A separation chamber is opened at the top of the inner side of the device body. Electric push rods are fixedly connected to the top of the left and right sides of the outer surface of the device body. A telescopic rod is fixedly connected to the output end of the electric push rod. The top of the telescopic rod penetrates the side wall of the device body and is fixedly connected to a squeezing plate. The squeezing plate slides left and right inside the separation chamber. Three fixed grooves in a rectangular array are opened at the rear of the inner surface of the separation chamber.

[0004] When this utility model is used, the single extrusion process results in a large amount of debris during separation, and it is impossible to separate oil and water after solid-liquid separation. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by providing a kitchen waste oil purification device that employs multi-component separation technology. Through a second separation mechanism and a separation tank, it solves the problems of excessive debris during separation caused by single compression processing, and the inability to separate oil and water after solid-liquid separation.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a kitchen waste oil purification device using multi-component separation technology, comprising a purification device; the purification device consists of a separation tank, a first separator, a second separation mechanism, and a conveyor; the bottom end of the first separator is installed on the upper left side of the separation tank; an ultrasonic generator is installed on the front left side of the separation tank; the first separator consists of a separation bucket, a stepped cylindrical separation screen, and a crushing and extrusion mechanism; an inlet is installed at the upper end of the separation bucket; the stepped cylindrical separation screen is installed inside the separation bucket; the crushing and extrusion mechanism is installed inside the stepped cylindrical separation screen; a discharge pipe is installed at the bottom end of the separation bucket; the bottom end of the discharge pipe is connected to the second separation mechanism; the bottom end of the stepped cylindrical separation screen is connected to the upper right side of the conveyor; a filter screen is installed in the middle of the stepped cylindrical separation screen; the right side of the conveyor and the second separation mechanism is installed on the upper side of a first power mechanism; the bottom end of the first power mechanism is installed on the upper side of the separation tank; and an outlet pipe is connected to the left side of the conveyor and the second separation mechanism.

[0007] Furthermore, the crushing and extrusion mechanism consists of a crushing shaft, a first extrusion screw rod, and a second power mechanism. The crushing shaft is rotatably installed in the center of the stepped cylindrical separation screen inside the separation barrel. The upper end of the crushing shaft passes through the separation barrel and is installed at the bottom end of the second power mechanism. The bottom end of the second power mechanism is installed on the upper side of the separation barrel. The first extrusion screw rod is installed at the bottom end of the crushing shaft, located below the stepped cylindrical separation screen.

[0008] Furthermore, the second power mechanism consists of a second motor and a gearbox, with the gearbox mounted on the upper end of the separator and the bottom end of the second motor mounted on the upper side of the gearbox.

[0009] Furthermore, the conveyor consists of a conveying cylinder and a conveying threaded rod. The right side of the conveying cylinder is installed below the stepped cylindrical separation net cylinder, the left side of the conveying cylinder is connected to the right side of the outlet pipe, the conveying threaded rod is rotatably installed inside the conveying cylinder, and the right side of the conveying threaded rod is installed on the left side of the first power mechanism.

[0010] Furthermore, the second separation mechanism consists of a seepage cylinder, a second extrusion screw, and a water collection tank. The water collection tank is installed on the upper left side of the separation tank, the seepage cylinder is installed inside the water collection tank, the left side of the seepage cylinder is connected to the left side of the outlet pipe, the second extrusion screw is rotatably installed inside the seepage cylinder, the right side of the second extrusion screw is installed on the upper side of the first power mechanism, and the upper right side of the seepage cylinder is connected to the bottom end of the discharge pipe.

[0011] Furthermore, the first power mechanism consists of a synchronous belt, a synchronous pulley, and a first motor. The synchronous pulley is installed on the right side of the second extrusion screw and the conveying threaded rod. The synchronous belt wraps around the outside of the synchronous pulley. The synchronous pulley located on the right side of the second extrusion screw is installed on the right side of the first motor. The bottom end of the first motor is installed on the upper left side of the separation tank.

[0012] Furthermore, multiple baffles are evenly installed inside the separation tank, forming multiple separation channels between the baffles and the separation tank. A conduit is installed between adjacent separation channels on the outside of the separation tank. A drain pipe is installed on the right side of the separation tank, and an oil drain pipe is installed on the left side of the separation tank. Control valves are installed on the upper side of the drain pipe, the oil drain pipe, and the conduit.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. By constructing a complete multi-component separation chain of "crushing and pre-separation - deep solid-liquid separation - centralized discharge of solids - moisture recovery", it is adapted to the complex composition of kitchen waste of "large solids + viscous liquids + tiny impurities".

[0015] 2. The concentrated oil, after dehydration by the second separation unit, flows into the first separation tank of the separation pool. An ultrasonic generator assists in the initial stratification of oil and water. When the first separation tank is full, the control valve of the conduit between the first and second separation tanks is opened, allowing the lower layer of water to flow into the second separation tank for secondary separation. This process is repeated through multiple separation tanks to achieve staged separation, with each stage further reducing the oil content in the water. Finally, the purified pure oil is discharged from the left-side drain pipe, and the separated wastewater is discharged from the right-side drain pipe. The separation process of each stage can be independently controlled by the control valve. This multi-tank, staged separation design significantly improves oil-water separation efficiency and oil purity, avoiding the problem of incomplete separation in a single tank. Each separation tank, equipped with a control valve, can be operated independently, facilitating adjustment of the separation stages based on the oil's water content to meet different purification needs. The structure is simple and the separation effect is stable. Combined with ultrasonic assistance, the separation effect is further enhanced, providing a guarantee for the final purification stage of the multi-component separation process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the separation tank of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the first separator of this utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the first separator of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the second separation mechanism of this utility model.

[0021] The labels in the attached diagram are as follows: 1. Purification device; 2. Separation tank; 3. Conduit; 4. Control valve; 5. Ultrasonic generator; 6. Oil drain pipe; 7. Drain pipe; 8. Baffle plate; 9. Second separation mechanism; 10. Outlet pipe; 11. Conveyor; 12. First separator; 13. Second power mechanism; 14. Feed inlet; 15. Separation tank; 16. First power mechanism; 17. Synchronous pulley; 18. Synchronous belt; 19. First motor; 20. Water collection tank; 21. Second motor; 22. Gearbox; 23. Stepped cylindrical separation screen cylinder; 24. Crushing shaft; 25. First extrusion screw; 26. Discharge pipe; 27. Filter screen; 28. Conveying cylinder; 29. ​​Conveying threaded rod; 30. Water seepage cylinder; 31. Second extrusion screw; 32. Crushing and extrusion mechanism. Detailed Implementation

[0022] 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.

[0023] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," 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 component 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 or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of those features. In the description of this utility model, the meaning of "" is two or more, unless otherwise explicitly specified.

[0024] Example 1

[0025] like Figure 1-5As shown, this embodiment provides a kitchen waste oil purification device using multi-component separation technology, including a purification device 1; characterized in that: the purification device 1 consists of a separation tank 2, a first separator 12, a second separation mechanism 9, and a conveyor 11; the bottom end of the first separator 12 is installed on the upper left side of the separation tank 2, and an ultrasonic generator 5 is installed on the front left side of the separation tank 2; the first separator 12 consists of a separation barrel 15, a stepped cylindrical separation screen 23, and a crushing and extrusion mechanism 32; the upper end of the separation barrel 15 is equipped with a feed inlet 14, and the stepped cylindrical separation screen 23 is installed on... Inside the separation barrel 15, the crushing and extrusion mechanism 32 is installed inside the stepped cylindrical separation screen cylinder 23. A discharge pipe 26 is installed at the bottom of the separation barrel 15, and the bottom of the discharge pipe 26 is connected to the second separation mechanism 9. The bottom of the stepped cylindrical separation screen cylinder 23 is connected to the upper right side of the conveyor 11. A filter screen 27 is installed in the middle of the stepped cylindrical separation screen cylinder 23. The right side of the conveyor 11 and the second separation mechanism 9 is installed on the upper side of the first power mechanism 16. The bottom of the first power mechanism 16 is installed on the upper side of the separation pool 2. An outlet pipe 10 is connected to the left side of the conveyor 11 and the second separation mechanism 9.

[0026] Preferably, the crushing and extrusion mechanism 32 consists of a crushing shaft 24, a first extrusion screw 25, and a second power mechanism 13. The crushing shaft 24 is rotatably installed in the center of the stepped cylindrical separation screen 23 inside the separation tank 15. The upper end of the crushing shaft 24 passes through the separation tank 15 and is installed at the bottom of the second power mechanism 13. The bottom end of the second power mechanism 13 is installed on the upper side of the separation tank 15. The first extrusion screw 25 is installed at the bottom of the crushing shaft 24 below the stepped cylindrical separation screen 23. The second power mechanism 13 drives the crushing shaft 24 to rotate at high speed, first crushing large pieces of kitchen waste such as bones and vegetable leaves into fine particles, breaking the solid's coating on the oil. Then, the first extrusion screw 25 at the bottom of the crushing shaft 24 rotates with the shaft, continuously extruding the crushed mixture, squeezing out the oil and water from the solid particles. The squeezed oily mixture permeates to the outside through the mesh of the stepped cylindrical separation screen 23, while the solid residue is pushed to the conveyor 11 by the screw.

[0027] Preferably, the second power mechanism 13 consists of a second motor 21 and a gearbox 22. The gearbox 22 is installed on the upper end of the separation tank 15, and the bottom end of the second motor 21 is installed on the upper side of the gearbox 22. After the second motor 21 is started, the output speed is adjusted by the gearbox 22. For hard kitchen waste such as hard bones, the speed is increased to enhance the crushing ability of the crushing shaft 24. For wet and easily sticky waste such as leftover soup, the speed is reduced to ensure the crushing efficiency of the first extrusion screw 25 and avoid splashing of the mixture. Finally, stable power is transmitted to the crushing shaft 24 to ensure that the crushing and extrusion actions are carried out in a coordinated manner.

[0028] Preferably, the conveyor 11 consists of a conveying cylinder 28 and a conveying threaded rod 29. The right side of the conveying cylinder 28 is installed below the stepped cylindrical separation screen cylinder 23, and the left side of the conveying cylinder 28 is connected to the right side of the outlet pipe 10. The conveying threaded rod 29 is rotatably installed inside the conveying cylinder 28, and the right side of the conveying threaded rod 29 is installed on the left side of the first power mechanism 16. The first power mechanism 16 drives the conveying threaded rod 29 to rotate inside the conveying cylinder 28. Solid residues such as crushed bone fragments and vegetable scraps intercepted by the stepped cylindrical separation screen cylinder 23 fall into the right side of the conveying cylinder 28. The rotating conveying threaded rod 29 pushes the solid residues to the left along the inner wall of the conveying cylinder 28, and finally discharges them out of the device through the outlet pipe 10, thus achieving complete separation of the solid residues and the oily mixture.

[0029] Preferably, the second separation mechanism 9 consists of a seepage cylinder 30, a second extrusion screw 31, and a water collection tank 20. The water collection tank 20 is installed on the upper left side of the separation tank 2, and the seepage cylinder 30 is installed inside the water collection tank 20. The left side of the seepage cylinder 30 is connected to the left side of the outlet pipe 10. The second extrusion screw 31 is rotatably installed inside the seepage cylinder 30, and the right side of the second extrusion screw 31 is installed on the upper side of the first power mechanism 16. The upper right side of the seepage cylinder 30 is connected to the bottom end of the discharge pipe 26. The oily mixture containing liquid and small solid waste flowing in from the discharge pipe 26 of the first separator 12 enters the seepage cylinder 30. The first power mechanism 16 drives the second extrusion screw 31 to rotate, performing secondary extrusion on the mixture. Small solid waste such as small vegetable leaf fragments and impurity particles are pushed to the left by the screw and discharged through the outlet pipe 10. The squeezed water permeates through the seepage holes in the wall of the seepage cylinder 30 to the outer water collection tank 20. The water in the water collection tank 20 then flows into the separation tank 2 to participate in subsequent oil-water separation.

[0030] Preferably, the first power mechanism 16 consists of a synchronous belt 18, a synchronous pulley 17, and a first motor 19. The synchronous pulley 17 is installed on the right side of the second extrusion screw 31 and the conveying threaded rod 29. The synchronous belt 18 wraps around the outside of the synchronous pulley 17. The synchronous pulley 17, located on the right side of the second extrusion screw 31, is installed on the right side of the first motor 19. The bottom end of the first motor 19 is installed on the upper left side of the separation tank 2. After the first motor 19 starts, it drives the right synchronous pulley 17 to rotate. Through the synchronous belt 18, it synchronously drives the synchronous pulley 17 on the right side of the second extrusion screw 31 and the conveying threaded rod 29 to rotate synchronously. This ensures that the secondary extrusion action of the second extrusion screw 31 and the residue conveying action of the conveying threaded rod 29 maintain a coordinated rhythm. A single motor achieves synchronous drive of the two mechanisms through the synchronous belt 18 and the synchronous pulley 17, simplifying the equipment structure and reducing energy consumption and manufacturing costs. Synchronous transmission ensures that the residue conveying and secondary dewatering actions are in sync, avoiding equipment blockage or efficiency reduction due to asynchronous actions. The transmission structure is simple and reliable, easy to maintain, and adaptable to the needs of multi-mechanism coordinated operation in continuous purification operations, improving the overall operational stability of the equipment.

[0031] Preferably, multiple baffles 8 are evenly installed inside the separation tank 2, forming multiple separation tanks between the baffles 8 and the separation tank 2. A conduit 3 is installed between adjacent separation tanks on the outside of the separation tank 2. A drain pipe 7 is installed on the right side of the separation tank 2, and an oil drain pipe 6 is installed on the left side of the separation tank 2. Control valves 4 are installed on the upper side of the drain pipe 7, the oil drain pipe 6, and the conduit 3. The concentrated oil after dehydration by the second separation mechanism 9 flows into the first separation tank of the separation tank 2. The ultrasonic generator 5 assists in the initial separation of oil and water. When the first separation tank is full, the control valve 4 of the conduit 3 between the first and second separation tanks is opened, and the water in the lower layer flows into the second separation tank for secondary separation. In this way, separation is achieved step by step through multiple separation tanks, and each separation tank further reduces the oil content in the water. Finally, the purified pure oil is discharged from the oil drain pipe 6 on the left side, and the separated wastewater is discharged from the drain pipe 7 on the right side. The separation process of each separation tank can be independently controlled by the control valve 4. The multi-stage separation design significantly improves oil-water separation efficiency and oil purity, avoiding the problem of incomplete separation in a single tank. Each separation tank can be operated independently with control valve 4, making it easy to adjust the number of separation stages according to the water content of the oil and adapt to different purification needs. The structure is simple and the separation effect is stable. Combined with ultrasonic assistance, the separation effect is further enhanced, providing a guarantee for the final purification stage of the multi-component separation process.

[0032] Work steps

[0033] Food waste is first fed into the separation bin 15 of the first separator 12. The crushing and squeezing mechanism 32 crushes and squeezes large pieces of waste to achieve preliminary separation of grease, water and solid residue. Solid residue is intercepted by the stepped cylindrical separation screen 23 and falls into the conveyor 11. The oily mixture contains liquid and small solid waste, which pass through the stepped cylindrical separation screen 23 and flow into the second separation mechanism 9 through the discharge pipe 26. The conveyor 11 discharges the solid residue through the outlet pipe 10. The small solid waste separated by the second separation mechanism 9 is also discharged through the outlet pipe 10. The separated oil-water mixture flows into the water collection tank 20 and then into the separation pool 2. The ultrasonic generator 5 enhances the oil-water separation in the separation pool 2. Finally, the purified grease and wastewater are discharged from the corresponding pipes. By constructing a complete multi-component separation chain of "crushing and pre-separation - deep solid-liquid separation - centralized solid discharge - moisture recovery", it is adapted to the complex composition of kitchen waste of "large solids + viscous liquids + tiny impurities"; the outlet pipe 10 centrally collects and discharges solid waste, avoiding scattered pollution and improving the convenience of operation. The stepped separation design greatly improves the purity of oil purification and reduces the load of subsequent processing.

[0034] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements 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 device for purifying grease from kitchen waste using multi-component separation technology, comprising a purification device (1); characterized in that: The purification device (1) consists of a separation tank (2), a first separator (12), a second separation mechanism (9), and a conveyor (11). The bottom of the first separator (12) is installed on the upper left side of the separation tank (2). An ultrasonic generator (5) is installed on the front left side of the separation tank (2). The first separator (12) consists of a separation barrel (15), a stepped cylindrical separation screen (23), and a crushing and extrusion mechanism (32). The upper end of the separation barrel (15) is equipped with a feed inlet (14). The stepped cylindrical separation screen (23) is installed inside the separation barrel (15). The crushing and extrusion mechanism (32) is installed on the stepped cylindrical screen. Inside the cylindrical separating screen (23), a discharge pipe (26) is installed at the bottom of the separating barrel (15), and the bottom of the discharge pipe (26) is connected to the second separating mechanism (9). The bottom of the stepped cylindrical separating screen (23) is connected to the upper right side of the conveyor (11). A filter screen (27) is installed in the middle of the stepped cylindrical separating screen (23). The right side of the conveyor (11) and the second separating mechanism (9) is installed on the upper side of the first power mechanism (16). The bottom of the first power mechanism (16) is installed on the upper side of the separating pool (2). The left side of the conveyor (11) and the second separating mechanism (9) is connected to the outlet pipe (10).

2. The kitchen waste oil purification device using multi-component separation technology according to claim 1, characterized in that, The crushing and extrusion mechanism (32) consists of a crushing shaft (24), a first extrusion screw rod (25), and a second power mechanism (13). The crushing shaft (24) is rotatably installed in the center of the stepped cylindrical separation screen (23) inside the separation barrel (15). The upper end of the crushing shaft (24) passes through the separation barrel (15) and is installed at the bottom of the second power mechanism (13). The bottom end of the second power mechanism (13) is installed on the upper side of the separation barrel (15). The first extrusion screw rod (25) is installed at the bottom end of the crushing shaft (24) below the stepped cylindrical separation screen (23).

3. The kitchen waste oil purification device using multi-component separation technology according to claim 2, characterized in that, The second power mechanism (13) consists of a second motor (21) and a gearbox (22). The gearbox (22) is installed on the upper end of the separator (15), and the bottom end of the second motor (21) is installed on the upper side of the gearbox (22).

4. The kitchen waste oil purification device using multi-component separation technology according to claim 3, characterized in that, The conveyor (11) consists of a conveying cylinder (28) and a conveying threaded rod (29). The right side of the conveying cylinder (28) is installed below the stepped cylindrical separation net cylinder (23). The left side of the conveying cylinder (28) is connected to the right side of the outlet pipe (10). The conveying threaded rod (29) is rotatably installed inside the conveying cylinder (28). The right side of the conveying threaded rod (29) is installed on the left side of the first power mechanism (16).

5. The kitchen waste oil purification device using multi-component separation technology according to claim 4, characterized in that, The second separation mechanism (9) consists of a seepage cylinder (30), a second extrusion screw rod (31), and a water collection tank (20). The water collection tank (20) is installed on the upper left side of the separation tank (2). The seepage cylinder (30) is installed inside the water collection tank (20). The left side of the seepage cylinder (30) is connected to the left side of the outlet pipe (10). The second extrusion screw rod (31) is rotatably installed inside the seepage cylinder (30). The right side of the second extrusion screw rod (31) is installed on the upper side of the first power mechanism (16). The upper right side of the seepage cylinder (30) is connected to the bottom end of the discharge pipe (26).

6. The kitchen waste oil purification device using multi-component separation technology according to claim 5, characterized in that, The first power mechanism (16) consists of a synchronous belt (18), a synchronous pulley (17) and a first motor (19). The synchronous pulley (17) is installed on the right side of the second extrusion screw (31) and the conveying threaded rod (29). The synchronous belt (18) wraps around the outside of the synchronous pulley (17). The synchronous pulley (17) located on the right side of the second extrusion screw (31) is installed on the right side of the first motor (19). The bottom end of the first motor (19) is installed on the upper left side of the separation tank (2).

7. The kitchen waste oil purification device according to claim 1, characterized in that, Multiple baffles (8) are evenly installed inside the separation tank (2). Multiple separation tanks are formed between the baffles (8) and the separation tank (2). A conduit (3) is installed between adjacent separation tanks on the outside of the separation tank (2). A drain pipe (7) is installed on the right side of the separation tank (2). An oil drain pipe (6) is installed on the left side of the separation tank (2). A control valve (4) is installed on the upper side of the drain pipe (7), the oil drain pipe (6) and the conduit (3).

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