Harmless treatment equipment for wastewater generated in kitchen waste oil processing

Abstract

The utility model discloses harmless treatment equipment for waste water generated in kitchen waste oil processing, which comprises a cylinder, a liquid outlet is fixed on the outer side wall of the cylinder, a cylinder cover is arranged at the top of the cylinder, and a plurality of fixing mechanisms for fixing the cylinder cover are circularly arranged on the outer side wall of the cylinder at equal intervals. A liquid inlet and an air outlet are formed in the two symmetrical ends of the top of the cylinder cover in a penetrating mode respectively, a two-way lead screw is rotationally connected to the bottom in the cylinder, a rotating shaft is fixed to the top end of the two-way lead screw, second grooves are formed in the two symmetrical sides of the rotating shaft, and a rotating mechanism used for rotating the rotating shaft is arranged on the top of the cylinder cover. The side wall of the bidirectional lead screw is sleeved with a lead screw sliding sleeve, and pin holes are formed in the inner circumferential face of the lead screw sliding sleeve in the radial direction of the lead screw sliding sleeve. Impurities on the surface of the filter screen can be cleaned through the cleaning mechanism and collected through the collecting mechanism, regular stopping of equipment operation and manual cleaning are not needed, a large amount of time is saved, and working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a harmless treatment device for wastewater generated during the processing of kitchen waste oil. Background Technology

[0002] Waste cooking oil refers to waste edible oil generated during the catering process, mainly from cooking methods such as frying and stir-frying. If this waste oil is not properly treated, it will cause serious environmental pollution and affect water and soil quality. With the rapid development of the catering industry, the amount of waste cooking oil generated is increasing year by year. Waste cooking oil not only wastes resources, but also generates a large amount of wastewater during its processing. This wastewater usually contains high concentrations of pollutants such as oil and suspended solids. If it is discharged directly without proper treatment, it will cause serious water pollution and affect the ecological environment and public health. Therefore, there is a need for a harmless treatment device for wastewater generated during the processing of waste cooking oil.

[0003] In the traditional process of treating wastewater generated from kitchen waste oil processing, the wastewater is usually initially filtered using a filter screen to remove solid impurities. However, as the usage time increases, a large amount of impurities and grease gradually accumulates on the surface of the filter screen, causing a decrease in the filtration efficiency. In order to maintain normal operation, the equipment must be stopped periodically for manual cleaning. This cleaning process not only consumes a lot of time and manpower, but also leads to a significant reduction in production efficiency, affecting the overall wastewater treatment process. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose a harmless treatment device for wastewater generated in the processing of kitchen waste oil.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A harmless treatment device for wastewater generated during the processing of kitchen waste oil includes a cylinder with a drain outlet fixed to its outer wall and a cylinder cover at the top. Multiple fixing mechanisms for securing the cylinder cover are arranged in a circular pattern at equal intervals on the outer wall of the cylinder. An inlet and an outlet are respectively provided through the symmetrical ends of the top of the cylinder cover. A bidirectional lead screw is rotatably connected to the bottom of the cylinder, and a rotating shaft is fixed to the top of the bidirectional lead screw. A second groove is provided on each symmetrical side of the rotating shaft. A rotating mechanism for rotating the rotating shaft is provided at the top of the cylinder cover. An annular plate is slidably connected to the inner wall of the cylinder. A lead screw sleeve is fitted onto the side wall of the bidirectional lead screw. A pin hole is provided radially on the inner circumference of the lead screw sleeve, and a crescent-shaped pin that mates with the bidirectional lead screw is placed in the pin hole. A... The device includes a filter screen, which is fixed to the outer wall of the lead screw sleeve. A cleaning mechanism for cleaning the filter screen is provided on the side wall of the rotating shaft. A limiting mechanism for restricting the annular plate is provided on the inner wall of the cylinder. An air blowing mechanism for blowing air into the cylinder is provided at the bottom of the cylinder. A collection mechanism is provided on the outer wall of the cylinder. During use, the rotating mechanism drives the bidirectional lead screw and rotating shaft to rotate. Combined with the lead screw sleeve and limiting mechanism, this causes the annular plate and filter screen to rise and fall along the inner wall of the cylinder. As the annular plate rises, it cleans the inner wall of the cylinder. When the filter screen rises to a certain height, the cleaning mechanism removes impurities from the filter screen surface, which are then collected by the collection mechanism. This eliminates the need for periodic shutdowns for manual cleaning, saving significant time and improving work efficiency.

[0007] Preferably, the air blowing mechanism includes a blower fixed to the outer wall of the cylinder. An annular pipe is provided at the bottom of the cylinder. Multiple branch pipes are fixed in a circular pattern at equal intervals on the side wall of the annular pipe, and the two ends of the multiple branch pipes are respectively connected to the annular pipe and the cylinder. A connecting pipe is fixed to the air outlet of the blower, and the connecting pipe is connected to the annular pipe. The blower is driven to draw outside air into the annular pipe through the connecting pipe and blow it into the cylinder through the multiple branch pipes. At this time, bubbles are generated in the wastewater, so that the wastewater is always in a turbulent state. This allows the flocculant and disinfectant to be fully mixed with the wastewater. The flocculant causes suspended particles, colloids and other pollutants in the water to aggregate into larger flocs, which then settle on the surface of the filter screen. The disinfectant can effectively kill pathogenic microorganisms in the water and reduce the biological hazards of pollutants.

[0008] Preferably, the rotating mechanism includes a motor, which is fixed at the center of the top of the cylinder cover. A disc is rotatably connected to the bottom of the cylinder cover, and the disc and the output shaft of the motor are fixed. Two third protrusions are fixed to the bottom of the disc, and the two third protrusions are respectively adapted to two second grooves. The cleaning mechanism includes an annular sleeve, which is sleeved on the side wall of the rotating shaft. Two second protrusions are fixed to the inner side wall of the annular sleeve, and the two second protrusions are respectively adapted to two second grooves. Two rubber scrapers are symmetrically fixed to the outer side wall of the annular sleeve near the bottom. A spring is sleeved on the side wall of the rotating shaft, and the spring is above the annular sleeve. The limiting mechanism includes two first protrusions, which are symmetrically fixed to the inner side wall of the cylinder. Two first grooves are opened on the outer side wall of the annular plate, and the two first grooves are respectively adapted to the two first protrusions. The collecting mechanism includes a discharge port, which is opened on the outer side wall of the cylinder. A collecting hopper is fixed to the outer side wall of the cylinder near the discharge port, and the top of the collecting hopper is flush with the lower edge of the discharge port. The driving motor drives the disc to rotate, cooperating with... Two third protrusions and two second grooves drive the rotating shaft to rotate, which in turn drives the bidirectional lead screw to rotate. The lead screw sleeve, along with the two first protrusions and two first grooves, moves the annular plate and filter screen upwards along the inner wall of the cylinder. As the annular plate moves upwards, it scrapes and cleans impurities adhering to the inner wall of the cylinder, which then fall onto the surface of the filter screen and move upwards with the precipitated flocculent matter. Because the two second protrusions and two second grooves are compatible, the rotating shaft drives the annular sleeve to rotate, which in turn drives the two rubber scrapers to rotate. When the filter screen contacts the bottom of the two rubber scrapers, the scrapers clean the impurities on the filter screen surface. At this point, the filter screen continues to move upwards, and the spring gradually compresses. The reaction force of this compression keeps the two rubber scrapers in contact with the filter screen surface until the filter screen and the lower edge of the discharge port are flush. At this point, the impurities on the filter screen surface are scraped into the collection hopper through the discharge port and collected. This process eliminates the need for periodic shutdowns for manual cleaning, saving significant time and improving work efficiency.

[0009] Preferably, the fixing mechanism includes a U-shaped plate fixed to the outer wall of the cylinder. An L-shaped plate is rotatably connected to the inner wall of the U-shaped plate. An installation hole is provided at the top of the L-shaped plate. An extrusion block is provided on the inner wall of the installation hole, and the extrusion block is adapted to the installation hole. A threaded rod is rotatably connected to the top of the extrusion block, and one end of the threaded rod passes through the top of the L-shaped plate. A threaded hole is provided at the top of the L-shaped plate, and the threaded hole is adapted to the threaded rod. The cylinder cover is installed on the top of the cylinder, and the three L-shaped plates are rotated so that the tops of the three L-shaped plates are above the cylinder cover. The three threaded rods are rotated to engage with the three threaded holes, causing the three extrusion blocks to move downwards along the direction of the three installation holes until the three extrusion blocks are in close contact with the top of the cylinder cover, thus completing the fixing of the cylinder cover.

[0010] The beneficial effects of this utility model are as follows:

[0011] 1. During use, this device drives the bidirectional lead screw and rotating shaft to rotate through the rotating mechanism. In conjunction with the lead screw sleeve and limiting mechanism, the annular plate and filter screen move up and down along the inner wall of the cylinder. During the upward movement of the annular plate, the inner wall of the cylinder can be cleaned. When the filter screen rises to a certain height, the cleaning mechanism can clean the impurities on the surface of the filter screen, and the impurities are collected by the collection mechanism. There is no need to stop the equipment to operate periodically for manual cleaning, which saves a lot of time and improves work efficiency.

[0012] 2. A certain proportion of flocculant and disinfectant are injected into the wastewater through the inlet. The air bubbles generated by the blowing mechanism allow the wastewater, flocculant, and disinfectant to mix thoroughly, enhancing the flocculation and disinfection effects and improving treatment efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a harmless treatment device for wastewater generated during the processing of kitchen waste oil, as proposed in this utility model.

[0014] Figure 2 This is a cross-sectional schematic diagram of the cylinder and cylinder cover of a harmless treatment device for wastewater generated during the processing of kitchen waste oil proposed in this utility model.

[0015] Figure 3 This utility model provides a schematic diagram of an annular plate, annular sleeve, screw sleeve, and rubber scraper for the harmless treatment of wastewater generated during the processing of kitchen waste oil.

[0016] Figure 4 An exploded view of the annular plate, the first protrusion, and the first groove of a harmless treatment device for wastewater generated during the processing of kitchen waste oil proposed in this utility model;

[0017] Figure 5 An exploded view of the annular sleeve, bidirectional lead screw, spring, second convex strip, and rotating shaft of a harmless treatment device for wastewater generated during the processing of kitchen waste oil proposed in this utility model;

[0018] Figure 6 An exploded view of the rotating shaft, second groove, disc, and third convex strip of a harmless treatment device for wastewater generated during the processing of kitchen waste oil proposed in this utility model;

[0019] Figure 7 This is a schematic diagram of the L-shaped plate cross-section of a harmless treatment device for wastewater generated during the processing of kitchen waste oil, as proposed in this utility model.

[0020] In the diagram: 1. Cylinder; 2. Cylinder cover; 3. Liquid inlet; 4. Air outlet; 5. Material outlet; 6. Collection hopper; 7. Liquid drain outlet; 8. Motor; 9. Fan; 10. Connecting pipe; 11. Annular pipe; 12. Branch pipe; 13. Annular plate; 14. Annular sleeve; 15. Screw sleeve; 16. Rubber scraper; 17. Bidirectional screw; 18. First convex strip; 19. Spring; 20. Filter screen; 21. First groove; 22. Second convex strip; 23. Rotating shaft; 24. Second groove; 25. Disc; 26. Third convex strip; 27. U-shaped plate; 28. L-shaped plate; 29. ​​Mounting hole; 30. Extrusion block; 31. Threaded rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1 - Figure 7A harmless treatment device for wastewater generated during the processing of kitchen waste oil includes a cylinder 1. A drain port 7 is fixed to the outer wall of the cylinder 1. A cylinder cover 2 is installed at the top of the cylinder 1. Multiple fixing mechanisms for fixing the cylinder cover 2 are arranged in a circular pattern at equal intervals on the outer wall of the cylinder 1. A liquid inlet 3 and an air outlet 4 are symmetrically arranged at both ends of the top of the cylinder cover 2. A bidirectional lead screw 17 is rotatably connected to the bottom of the cylinder 1. A rotating shaft 23 is fixed to the top of the bidirectional lead screw 17. The function of the rotating shaft 23 is to drive the operation of the entire cleaning and moving mechanism. The rotation of the rotating shaft 23... This causes the bidirectional lead screw 17 to rotate, thereby driving the movement of other components. The rotating shaft 23 has second grooves 24 on both symmetrical sides. The top of the cylinder cover 2 is equipped with a rotating mechanism for rotating the shaft 23. An annular plate 13 is slidably connected to the inner wall of the cylinder 1. A lead screw sleeve 15 is fitted onto the side wall of the bidirectional lead screw 17. A pin hole is provided radially on the inner circumference of the lead screw sleeve 15, and a crescent-shaped pin that mates with the bidirectional lead screw 17 is placed inside the pin hole. A filter screen 20 is fixed to the inner wall of the annular plate 13, and the filter screen 20 is fixed to the outer wall of the lead screw sleeve 15. The rotating shaft... The side wall of cylinder 1 is equipped with a cleaning mechanism for cleaning the filter screen 20. The annular plate 13 moves upward along the inner wall of cylinder 1 through its connection with the bidirectional lead screw 17 and the lead screw sleeve 15 to clean and collect impurities. The rising of the annular plate 13 drives the filter screen 20 to move upward, which, in conjunction with the cleaning mechanism, facilitates the removal of precipitated solid matter. The inner side wall of cylinder 1 is equipped with a limiting mechanism for restricting the annular plate 13. The bottom of cylinder 1 is equipped with an air blowing mechanism for blowing air into the inside of cylinder 1. The outer side wall of cylinder 1 is equipped with a collection mechanism. During use, the rotating mechanism drives the bidirectional lead screw 17 and the rotating shaft 23 to rotate. In conjunction with the lead screw sleeve 15 and the limiting mechanism, the annular plate 13 and the filter screen 20 move up and down along the inner wall of the cylinder 1. During the upward movement of the annular plate 13, the inner wall of the cylinder 1 can be cleaned. When the filter screen 20 rises to a certain height, the cleaning mechanism can clean the impurities on the surface of the filter screen 20, and the impurities are collected by the collection mechanism. There is no need to stop the equipment regularly for manual cleaning, which saves a lot of time and improves work efficiency.

[0023] In this invention, the air blowing mechanism includes a blower 9, which is fixed to the outer wall of a cylinder 1. An annular pipe 11 is provided at the bottom of the cylinder 1. Multiple branch pipes 12 are fixed at equal intervals in a circular pattern on the side wall of the annular pipe 11, and the two ends of the multiple branch pipes 12 are respectively connected to the annular pipe 11 and the cylinder 1. A connecting pipe 10 is fixed to the air outlet end of the blower 9, and the connecting pipe 10 is connected to the annular pipe 11. The blower 9 is driven to draw outside air into the annular pipe 11 through the connecting pipe 10 and blow it into the cylinder 1 through the multiple branch pipes 12. At this time, bubbles are generated in the wastewater, so that the wastewater is always in a turbulent state. This allows the flocculant and disinfectant to be fully mixed with the wastewater. The flocculant causes suspended particles, colloids and other pollutants in the water to aggregate into larger flocs, which then settle on the surface of the filter screen 20. The disinfectant can effectively kill pathogenic microorganisms in the water and reduce the biological hazards of pollutants.

[0024] In this invention, the rotating mechanism includes a motor 8, which is fixed at the top center of the cylindrical cover 2. A disc 25 is rotatably connected to the bottom of the cylindrical cover 2, and the disc 25 is fixed to the output shaft of the motor 8. Two third protrusions 26 are fixed to the bottom of the disc 25, and the two third protrusions 26 are respectively adapted to two second grooves 24. The disc 25 is driven to rotate by the motor 8, which, in conjunction with the two third protrusions 26 and the two second grooves 24, drives the rotating shaft 23 to rotate, thereby driving the bidirectional lead screw 17 to rotate. The cleaning mechanism includes an annular sleeve 14, which is sleeved on the side wall of the rotating shaft 23. Two second protrusions 22 are fixed to the inner side wall of the annular sleeve 14, and the two second protrusions 22 are respectively adapted to two second grooves 24. The outer side of the annular sleeve 14... Two rubber scrapers 16 are symmetrically fixed near the bottom of the wall. The function of the annular sleeve 14 is to rotate with the rotating shaft 23 through the cooperation of the two second protrusions 22 and the two second grooves 24, thereby driving the two rubber scrapers 16 to rotate, which can effectively clean the impurities on the filter screen 20. A spring 19 is sleeved on the side wall of the rotating shaft 23. The function of the spring 19 is to provide a restoring force to ensure that the annular sleeve 14 can maintain appropriate contact pressure during rotation, thereby increasing the cleaning effect. The spring 19 is located above the annular sleeve 14. The limiting mechanism includes two first protrusions 18, which are symmetrically fixed on the inner side wall of the cylinder 1. Two first grooves 21 are opened on the outer side wall of the annular plate 13, and the two first grooves 21 are respectively adapted to the two first protrusions 18. The function of the first protrusion 18 is to match the first groove 21 of the annular plate 13, restricting the radial movement of the annular plate 13 and ensuring its stability and correct movement path within the cylinder 1. The collecting mechanism includes a discharge port 5, which is located on the outer wall of the cylinder 1. A collecting hopper 6 is fixed to the outer wall of the cylinder 1 near the discharge port 5, and the top of the collecting hopper 6 is flush with the lower edge of the discharge port 5. The drive motor 8 drives the disc 25 to rotate, which in turn drives the rotating shaft 23 to rotate in conjunction with the two third protrusions 26 and the two second grooves 24. The rotation of the rotating shaft 23 drives the bidirectional lead screw 17 to rotate, which in conjunction with the lead screw sleeve 15 and the two first protrusions 18 and the two first grooves 21, drives the annular plate 13 and the filter screen 20 to move upward along the inner wall of the cylinder 1 simultaneously. During the upward movement, impurities adhering to the inner wall of the cylinder 1 can be scraped and cleaned, falling onto the surface of the filter screen 20. These impurities, along with the precipitated flocculent matter, move upward with the filter screen 20. Because the two second protrusions 22 and the two second grooves 24 are matched, the rotation of the rotating shaft 23 drives the annular sleeve 14 to rotate, which in turn drives the two rubber scrapers 16 to rotate. When the bottom of the filter screen 20 contacts the two rubber scrapers 16, the two rubber scrapers 16 rotate to clean the impurities on the surface of the filter screen 20. At this time, the filter screen 20 continues to move upward, and the spring 19 gradually compresses. Under the reaction force of the compressed spring 19, the two rubber scrapers 16 remain in contact with the surface of the filter screen 20 until the filter screen 20 and the lower edge of the discharge port 5 are flush.Impurities on the surface of filter screen 20 are scraped into collection hopper 6 through discharge port 5 and collected. This process eliminates the need for periodic equipment shutdowns and manual cleaning, saving significant time and improving work efficiency.

[0025] In this utility model, the fixing mechanism includes a U-shaped plate 27, which is fixed to the outer wall of the cylinder 1. An L-shaped plate 28 is rotatably connected to the inner wall of the U-shaped plate 27. An installation hole 29 is provided at the top of the L-shaped plate 28. An extrusion block 30 is provided on the inner wall of the installation hole 29, and the extrusion block 30 is adapted to the installation hole 29. A threaded rod 31 is rotatably connected to the top of the extrusion block 30, and one end of the threaded rod 31 passes through the top of the L-shaped plate 28. A threaded hole is provided at the top of the L-shaped plate 28, and the threaded hole is adapted to the threaded rod 31. The cylinder cover 2 is installed on the top of the cylinder 1, and the three L-shaped plates 28 are rotated so that the tops of the three L-shaped plates 28 are above the cylinder cover 2. The three threaded rods 31 are rotated to engage with the three threaded holes, causing the three extrusion blocks 30 to move downward along the direction of the three installation holes 29 respectively, until the three extrusion blocks 30 are in close contact with the top of the cylinder cover 2, thus completing the fixing of the cylinder cover 2.

[0026] Working principle: During use, the cylinder cover 2 is first installed on top of the cylinder 1, and the three L-shaped plates 28 are rotated so that the tops of the three L-shaped plates 28 are above the cylinder cover 2. Then, the three threaded rods 31 are rotated to engage with the three threaded holes, causing the three extrusion blocks 30 to move downwards along the three mounting holes 29 until all three extrusion blocks 30 are in close contact with the top of the cylinder cover 2, thus fixing the cylinder cover 2. At this time, the two third protrusions 26 are inserted into the inner walls of the two second grooves 24 respectively, and wastewater and a certain proportion of flocculant and disinfectant are simultaneously injected into the cylinder 1 through the inlet 3. At the same time, the power switch of the ventilator 9 is turned on. The drive fan 9 draws external air into the annular pipe 11 through the connecting pipe 10, and blows it into the cylinder 1 through multiple branch pipes 12. At this time, bubbles are generated in the wastewater, keeping it in a turbulent state. This allows the flocculant and disinfectant to be fully mixed with the wastewater. The flocculant causes suspended particles, colloids, and other pollutants in the water to aggregate into larger flocs, which then settle on the surface of the filter screen 20. The disinfectant effectively kills pathogenic microorganisms in the water, reducing the biological hazards of pollutants. At this time, when the power switch of the motor 8 is turned on, the drive motor 8 drives the disc 25 to rotate, cooperating with the two third protrusions 26 and the two second grooves. 24 drives the rotating shaft 23 to rotate, and the rotation of the rotating shaft 23 drives the bidirectional lead screw 17 to rotate. The lead screw sleeve 15, together with the two first protrusions 18 and the two first grooves 21, drives the annular plate 13 and the filter screen 20 to move upwards along the inner wall of the cylinder 1. During the upward movement of the annular plate 13, impurities adhering to the inner wall of the cylinder 1 are scraped and cleaned, falling onto the surface of the filter screen 20 and moving upwards along with the precipitated flocculent matter. Because the two second protrusions 22 and the two second grooves 24 are compatible, the rotation of the rotating shaft 23 drives the annular sleeve 14 to rotate, which in turn drives the two rubber scrapers 16 to rotate. When the filter screen 20 and the two rubber scrapers 16 rotate... When the bottom of the filter screen 20 is in contact with the filter screen 20, the two rubber scrapers 16 rotate to clean the impurities on the surface of the filter screen 20. At this time, the filter screen 20 continues to move upward, and the spring 19 gradually compresses. Under the reaction of the spring 19 in the compressed state, the two rubber scrapers 16 are always in contact with the surface of the filter screen 20 until the filter screen 20 and the lower edge of the discharge port 5 are flush. At this time, the impurities on the surface of the filter screen 20 are scraped into the collection hopper 6 through the discharge port 5 and collected. During the process, there is no need to stop the equipment from running periodically for manual cleaning. This operation method saves a lot of time and improves work efficiency. After processing, the drain port 7 is opened to discharge the wastewater.

[0027] 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 the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A device for the harmless treatment of wastewater generated during the processing of kitchen waste oil, comprising a cylinder (1), characterized in that, A drain port (7) is fixed to the outer wall of the cylinder (1). A cylinder cover (2) is provided on the top of the cylinder (1). Multiple fixing mechanisms for fixing the cylinder cover (2) are arranged in a circular pattern at equal intervals on the outer wall of the cylinder (1). A liquid inlet (3) and an air outlet (4) are respectively provided through the symmetrical ends of the top of the cylinder cover (2). A bidirectional screw (17) is rotatably connected to the bottom of the cylinder (1). A rotating shaft (23) is fixed to the top of the bidirectional screw (17). A second groove (24) is provided on both sides of the rotating shaft (23). A rotating mechanism for rotating the rotating shaft (23) is provided on the top of the cylinder cover (2). An annular plate (1) is slidably connected to the inner wall of the cylinder (1). 3) The side wall of the bidirectional lead screw (17) is fitted with a lead screw sleeve (15). The inner circumferential surface of the lead screw sleeve (15) is provided with a pin hole along its radial direction. A crescent pin that cooperates with the bidirectional lead screw (17) is provided in the pin hole. A filter screen (20) is fixed on the inner side wall of the annular plate (13), and the filter screen (20) and the outer side wall of the lead screw sleeve (15) are fixed. A cleaning mechanism for cleaning the filter screen (20) is provided on the side wall of the rotating shaft (23). A limiting mechanism for limiting the annular plate (13) is provided on the inner side wall of the cylinder (1). An air blowing mechanism for blowing air into the cylinder (1) is provided at the bottom of the cylinder (1). A collection mechanism is provided on the outer side wall of the cylinder (1).

2. The harmless treatment equipment for wastewater generated during the processing of kitchen waste oil according to claim 1, characterized in that, The blowing mechanism includes a blower (9), which is fixed on the outer wall of the cylinder (1). An annular pipe (11) is provided at the bottom of the cylinder (1). Multiple branch pipes (12) are fixed in a circular shape at equal intervals on the side wall of the annular pipe (11). The two ends of the multiple branch pipes (12) are respectively connected to the annular pipe (11) and the cylinder (1). A connecting pipe (10) is fixed at the air outlet end of the blower (9), and the connecting pipe (10) is connected to the annular pipe (11).

3. The harmless treatment equipment for wastewater generated during the processing of kitchen waste oil according to claim 1, characterized in that, The rotating mechanism includes a motor (8), which is fixed at the top center of the cylinder cover (2). A disc (25) is rotatably connected to the bottom of the cylinder cover (2), and the disc (25) and the output shaft of the motor (8) are fixed. Two third protrusions (26) are fixed to the bottom of the disc (25), and the two third protrusions (26) are respectively adapted to two second grooves (24).

4. The harmless treatment equipment for wastewater generated during the processing of kitchen waste oil according to claim 1, characterized in that, The cleaning mechanism includes an annular sleeve (14), which is fitted onto the side wall of the rotating shaft (23). The inner side wall of the annular sleeve (14) has two second protrusions (22) fixed, and the two second protrusions (22) are respectively adapted to two second grooves (24). The outer side wall of the annular sleeve (14) has two rubber scrapers (16) symmetrically fixed near the bottom. The side wall of the rotating shaft (23) is fitted with a spring (19), and the spring (19) is located above the annular sleeve (14).

5. The harmless treatment equipment for wastewater generated during the processing of kitchen waste oil according to claim 1, characterized in that, The limiting mechanism includes two first protrusions (18), which are symmetrically fixed on the inner wall of the cylinder (1). The outer wall of the annular plate (13) has two first grooves (21), which are adapted to the two first protrusions (18) respectively.

6. The harmless treatment equipment for wastewater generated during the processing of kitchen waste oil according to claim 1, characterized in that, The collecting mechanism includes a discharge port (5), which is located on the outer wall of the cylinder (1). A collecting hopper (6) is fixed on the outer wall of the cylinder (1) near the discharge port (5), and the top of the collecting hopper (6) is flush with the lower edge of the discharge port (5).

7. The harmless treatment equipment for wastewater generated during the processing of kitchen waste oil according to claim 1, characterized in that, The fixing mechanism includes a U-shaped plate (27), which is fixed to the outer wall of the cylinder (1). An L-shaped plate (28) is rotatably connected to the inner wall of the U-shaped plate (27). An installation hole (29) is provided at the top of the L-shaped plate (28). An extrusion block (30) is provided on the inner wall of the installation hole (29), and the extrusion block (30) and the installation hole (29) are adapted to each other. A threaded rod (31) is rotatably connected to the top of the extrusion block (30), and one end of the threaded rod (31) passes through the top of the L-shaped plate (28). A threaded hole is provided at the top of the L-shaped plate (28), and the threaded hole and the threaded rod (31) are adapted to each other.

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