A solid-liquid separation device for kitchen waste

Abstract

This invention relates to the field of food waste treatment technology and discloses a solid-liquid separation device for food waste. The device includes a housing with a conveying chamber and a door connected to it. A feeding trough is connected to the lower end of the conveying chamber, and a semi-circular filter screen is connected to the feeding trough. A screw is positioned above the semi-circular filter screen and is rotatably connected to the feeding trough. One end of the screw is connected to a driving component for rotating the screw. A conveying pipe is connected to one end of the feeding trough. A processing tank is connected inside the housing, and an open pipe is connected to the processing tank. One end of the open pipe is connected to a collection pipe, and a plastic bucket is positioned below one end of the collection pipe. A long pipe is connected inside the processing tank, and a sewage discharge tank is connected to the upper end of the long pipe. A short pipe is connected to the sewage discharge tank. This invention utilizes a screw and a semi-circular filter screen to stably achieve solid-liquid separation of food waste, and uses a shower head to effectively wash away oil stains on the surface of the waste, improving oil collection efficiency.

Description

Technical Field

[0001] This invention relates to the field of food waste treatment technology, and in particular to a solid-liquid separation device for food waste. Background Technology

[0002] With the acceleration of urbanization and the improvement of residents' living standards, the amount of food waste generated is increasing dramatically. This type of waste has a complex composition, containing not only a large amount of organic solids but also sewage and oil stains. If not handled properly, it will not only pollute the environment but also lead to the waste of resources. Therefore, efficient food waste treatment technologies, especially those that achieve solid-liquid separation and oil recycling, have become key issues that urgently need to be addressed in the field of environmental protection.

[0003] Currently, traditional food waste treatment technologies for solid-liquid separation and oil recovery are relatively outdated and severely lack systematic processing equipment. Existing processes often separate solid-liquid separation and oil separation into separate steps, lacking a unified integrated design and failing to achieve efficient connections between each step. For example, in the solid-liquid separation stage, most methods use filter screens, where food waste is poured onto the screen and gravity allows the liquid to seep through naturally, leaving solid residue on the screen surface. This method has extremely low separation efficiency, making it difficult to achieve large-scale, continuous processing, and requires frequent manual operation with high labor intensity. After solid-liquid separation, the oil separation stage generally relies on manual scooping of oil from the surface of the separated liquid using spoons or other simple tools. Due to the lack of precise layer control, a large amount of wastewater inevitably mixes in during the scooping process, resulting in low oil collection purity and poor recycling rates. Furthermore, existing equipment is not specifically designed for low-temperature environments; once the ambient temperature drops, oil easily condenses on the filter screen or the inner wall of the container, significantly reducing its fluidity and making subsequent separation operations even more difficult. Furthermore, traditional equipment typically lacks a built-in cleaning mechanism. After prolonged use, filters and other components easily accumulate stubborn grease and solid residue. Manual cleaning is not only time-consuming and labor-intensive but also difficult to thoroughly remove, easily leading to bacterial growth and secondary pollution, severely impacting the equipment's lifespan and processing efficiency. The decentralized processing at each stage and the limited functionality of the equipment result in inefficient and costly food waste treatment, failing to meet modern environmental protection and resource recycling needs.

[0004] Based on this, a solid-liquid separation device for kitchen waste is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a solid-liquid separation device for kitchen waste in order to solve the above-mentioned problems.

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

[0007] A solid-liquid separation device for kitchen waste includes a box body, a conveying chamber and a door connected to the box body, a feeding trough connected to the lower end of the conveying chamber, a semi-circular filter screen connected to the feeding trough, a screw mounted above the semi-circular filter screen, the screw being rotatably connected to the feeding trough, a driving component connected to one end of the screw to drive the screw to rotate, and a conveying pipe connected to one end of the feeding trough.

[0008] The box contains a processing tank, which has an open pipe connected to it. One end of the open pipe is connected to a collection pipe, and a plastic bucket is placed below the collection pipe. A long pipe is connected inside the processing tank, and a sewage discharge box is connected to its upper end. A short pipe is connected to the sewage discharge box. A sewage discharge chamber is connected to the lower end of the processing tank, and a sewage discharge pipe is connected to the sewage discharge chamber. A water inlet pipe is connected to the processing tank, and a T-connector is connected to one end of the water inlet pipe. One end of the T-connector is connected to a water injection pipe via a solenoid valve, and the other end of the T-connector is connected to a cleaning mechanism for cleaning the processing tank.

[0009] Preferably, the driving component includes a motor, and the output end of the motor is connected to one end of a screw via a chain.

[0010] Preferably, one end of the conveying pipe is bolted to a sealing plate, and the sealing plate has a groove.

[0011] Preferably, a deflection bar is connected to the outside of the collection pipe, and an arc frame is connected to the outside of the processing box, with the deflection bar slidably connected to the arc frame.

[0012] Preferably, the cleaning mechanism includes a spray gun, a third-way pipe 1 is connected to a second third-way pipe via a connecting pipe, the spray gun is connected to one end of the second third-way pipe, a sealing pipe is connected to the drain pipe, the upper end of the sealing pipe passes through the treatment box and enters the treatment box, a T-shaped plug is provided above the sealing pipe, an electric push rod is connected to the upper end of the T-shaped plug, and the electric push rod is connected to the inner wall of the treatment box.

[0013] Preferably, the processing box is connected to a partition, which is alternately and equidistantly connected to the inner wall of the processing box.

[0014] Preferably, a limit switch is connected to the inner wall of the processing box, a float ball is connected to the limit switch, a sleeve is slidably fitted on the short tube, and a heating rod is connected inside the processing box.

[0015] Preferably, one end of the three-way pipe is connected to a rinsing pipe, the other end of the rinsing pipe passes through the conveying bin and is connected to a shower head seat, the shower head seat is located directly above one end of the screw, and a cleaning window is rotatably connected to the outside of the discharge trough.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0017] 1. This application adopts a screw structure, which, in conjunction with a semi-circular filter screen, can stably achieve solid-liquid separation of kitchen waste. The shower head can effectively wash away oil stains on the surface of the waste, improving the oil collection efficiency. When the equipment needs to be cleaned regularly, the spray gun can be inserted into the cleaning window to clean the semi-circular filter screen and screw. Controlling the T-shaped plug to move upward can accelerate the discharge of sewage and improve the cleaning effect.

[0018] 2. This application adopts an open pipe structure, which can adjust the height of oil collection by rotating the open pipe. Combined with the sleeve structure, it can collect the oil that has entered the short pipe again, so that the oil that moves with the discharged sewage flow floats back to the surface of the recovery liquid, thereby improving the recovery efficiency. In addition, the heating rod can ensure the temperature of the sewage in the treatment tank, prevent the oil from condensing on the inner wall of the equipment, and improve the fluidity of the oil. Attached Figure Description

[0019] Figure 1 A schematic diagram of the overall structure of the separation device provided according to an embodiment of the present invention is shown;

[0020] Figure 2 A schematic diagram of the connection between the conveying bin and the processing box according to an embodiment of the present invention is shown;

[0021] Figure 3 An exploded structural diagram of the cleaning window connection provided according to an embodiment of the present invention is shown;

[0022] Figure 4 A schematic diagram of the structure of the arc frame connection provided according to an embodiment of the present invention is shown;

[0023] Figure 5 A schematic diagram of the structure of the partition connection provided according to an embodiment of the present invention is shown;

[0024] Figure 6 A schematic diagram of a T-joint connection provided according to an embodiment of the present invention is shown;

[0025] Figure 7 A schematic diagram of the structure of the short pipe connection provided according to an embodiment of the present invention is shown;

[0026] Figure 8 A schematic diagram of the structure of the sealing tube connection provided according to an embodiment of the present invention is shown.

[0027] Legend:

[0028] 1. Box body; 2. Conveying chamber; 3. Box door; 4. Water inlet pipe; 5. Spray gun; 6. Sewage drain pipe; 7. Screw; 8. Semi-circular filter screen; 9. Plastic bucket; 10. Rinse pipe; 11. Processing box; 12. Collection pipe; 13. Discharge chute; 14. Cleaning window; 15. Chain; 16. Motor; 17. Conveying pipe; 18. Sealing plate; 19. Bolt; 20. Heating rod; 21. T-joint pipe 22. Connecting pipe; 23. T-junction; 24. Limit switch; 25. Solenoid valve; 26. Electric push rod; 27. Arc frame; 28. Sewage chamber; 29. ​​Deflector bar; 30. Sewage box; 31. Open pipe; 32. Partition plate; 33. Float ball; 34. T-plug; 35. Long pipe; 36. Short pipe; 37. Water inlet pipe; 38. Sleeve; 39. Sealing pipe; 40. Shower head holder. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figures 1-8 The present invention provides a technical solution:

[0031] A solid-liquid separation device for kitchen waste includes a housing 1, a conveying chamber 2 and a door 3 connected to the housing 1. The upper end of the conveying chamber 2 is open for the disposal of kitchen waste, while the door 3 can be opened to accommodate a plastic bucket 9. A feeding trough 13 is connected to the lower end of the conveying chamber 2. The feeding trough 13 has a square cross-section and is inclined to facilitate the movement of the separated liquid along the feeding trough 13. A semi-circular filter screen 8 is connected to the feeding trough 13, allowing the separated liquid to pass through the semi-circular filter screen. 8 drops fall onto the feeding trough 13. A screw 7 is installed above the semi-circular filter screen 8. The semi-circular filter screen 8 and the screw 7 are on the same axis. As the screw 7 rotates, the waste can be conveyed from bottom to top. The semi-circular filter screen 8 is fixedly connected to the feeding trough 13. The semi-circular filter screen 8 is located below the screw 7. The screw 7 is rotatably connected to the feeding trough 13. One end of the screw 7 is connected to a driving component to drive the screw 7 to rotate. One end of the feeding trough 13 is connected to a conveying pipe 17. The conveying pipe 17 is located above the processing box 11.

[0032] Inside the housing 1 is a processing tank 11, with an open pipe 31 connected to the processing tank 11. One end of the open pipe 31 is connected to a collection pipe 12. Both the open pipe 31 and the collection pipe 12 are rotatable; rotation is achieved by simply turning the deflector bar 29. A plastic bucket 9 is located below one end of the collection pipe 12, allowing oily waste discharged from the collection pipe 12 to automatically flow into the plastic bucket 9. A long pipe 35 is connected inside the processing tank 11, with its lower end penetrating the processing tank 11 and connecting to a sludge discharge chamber 28. The upper end of the long pipe 35 is connected to a sludge discharge box 30, with the upper end of the long pipe 35 and the bottom surface of the sludge discharge box 30 at the same level. A short pipe 36 is connected to the sludge discharge box 30, with its upper end higher than the bottom surface of the sludge discharge box 30 and its lower end lower than the lower end of the partition 32. The lower end of the processing tank 11 is connected to the sludge discharge chamber 28. A drain pipe 6 is connected to the upper part of the treatment tank 11. One end of the drain pipe 6 extends out of the tank body 1 and the other end extends into the drain chamber 28. A sealing pipe 39 is connected to the extended part. A water inlet pipe 4 is connected to the treatment tank 11. One end of the water inlet pipe 4 extends out of the tank body 1 and connects to the tap water pipe. A small water heater is installed at the connection point so that the water supplied to the water inlet pipe 4 is hot water. A three-way pipe 21 is connected to one end of the water inlet pipe 4. A water injection pipe 37 is connected to one end of the three-way pipe 21 through a solenoid valve 25. The opening of the water injection pipe 37 is related to the detection of the limit switch 24. When the water level in the treatment tank 11 is detected to drop, the solenoid valve 25 connected to one end of the water injection pipe 37 is opened, so that water is injected into the treatment tank 11 through the water injection pipe 37. A cleaning mechanism for cleaning the treatment tank 11 is connected to the other end of the three-way pipe 21.

[0033] Specifically, such as Figure 3 As shown, the driving component includes a motor 16. The output end of the motor 16 is connected to one end of the screw 7 via a chain 15. After the device is started, the motor 16 will only start running when the water level in the processing tank 11 rises to the standard height. The motor 16, in conjunction with the chain 15, can stably drive the screw 7 to rotate, thereby completing the conveying of waste.

[0034] Specifically, such as Figure 3 As shown, one end of the conveying pipe 17 is connected to a sealing plate 18 by a bolt 19. The sealing plate 18 has a groove, and the position of the bolt 19 connected to the groove can be adjusted to adjust the area of ​​the sealing plate 18 blocking one end of the conveying pipe 17, thereby adjusting the sewage conveying efficiency. The structure of the sealing plate 18 is fixed by the bolt 19, which can clamp the sealing plate 18 onto the conveying pipe 17.

[0035] Specifically, such as Figure 5As shown, a deflector strip 29 is connected to the outside of the collection pipe 12, and an arc frame 27 is connected to the outside of the treatment box 11. The deflector strip 29 is slidably connected to the arc frame 27. Moving the deflector strip 29 can change the height of the opening of the opening pipe 31, thereby realizing the collection of oil stains on the sewage. Different heights affect the purity of oil stain collection in the sewage in the treatment box 11. When the height is lower, the probability of water in the sewage entering the collection pipe 12 increases. That is, the deflection angle of the deflector strip 29 needs to be adjusted during actual use of the equipment to achieve high-precision separation of oil stains.

[0036] Specifically, such as Figure 3 and Figure 7 As shown, the cleaning mechanism includes a spray gun 5, a three-way pipe 21 connected to a two-way pipe 23 via a connecting pipe 22, and the spray gun 5 connected to one end of the two-way pipe 23. The spray gun 5 needs to be inserted into the cleaning window 14 on one side of the discharge trough 13 for cleaning. A sealing pipe 39 is connected to the drain pipe 6. The upper end of the sealing pipe 39 is connected to the treatment box 11. The upper end of the sealing pipe 39 passes through the treatment box 11 and enters the treatment box 11. A T-shaped plug 34 is set above the sealing pipe 39. An electric push rod 26 is connected to the upper end of the T-shaped plug 34. When the electric push rod 26 moves down, the T-shaped plug 34 can be used to seal the drain pipe 6. The electric push rod 26 is connected to the inner wall of the treatment box 11.

[0037] Specifically, such as Figure 8 As shown, a partition 32 is connected inside the processing box 11. The partition 32 is connected to the inner wall of the processing box 11 alternately and at equal intervals. This partition 32 structure can guide oil into the open pipe 31, improve the oil separation efficiency, increase the oil movement stroke, and ensure orderly oil separation.

[0038] Specifically, such as Figure 7 and Figure 8 As shown, a limit switch 24 is connected to the inner wall of the treatment tank 11, and a float 33 is connected to the limit switch 24. The float 33 can detect changes in the liquid level inside the treatment tank 11 by changing the buoyancy. A sleeve 38 is slidably fitted onto the short pipe 36. The structure of the sleeve 38 can adjust the discharge height of the upper end of the short pipe 36. Since the oil content of different kitchen wastes is different, the oily sewage with a high oil content is more likely to enter the short pipe 36. At this time, the height of the sleeve 38 needs to be increased to prevent oil from entering the long pipe 35. Conversely, the height of the adjustable sleeve 38 can be decreased. Since the amount of oil entering the short pipe 36 is less, the treatment cycle of oil in the sewage tank 30 is longer, and there is no need to clean the oil in the sewage tank 30 frequently. A heating rod 20 is connected inside the treatment tank 11 to maintain the temperature of the sewage in the treatment tank 11 and prevent problems such as oil condensation.

[0039] Specifically, such as Figure 2 and Figure 3As shown, one end of the three-way pipe 23 is connected to the washing pipe 10, and the other end of the washing pipe 10 passes through the conveying bin 2 and is connected to the shower seat 40. The shower seat 40 is located directly above one end of the screw 7. A cleaning window 14 is rotatably connected to the outside of the discharge trough 13. When the equipment is running, the washing pipe 10 is always in operation. A valve can also be installed at the connection between the three-way pipe 23 and the washing pipe 10 to control the operation of the washing pipe 10. Hot water is delivered to the shower seat 40 through the washing pipe 10 to wash away the oil stains attached to the surface of the waste and improve the separation efficiency.

[0040] In summary, the kitchen waste solid-liquid separation device provided in this embodiment allows the waste to be placed on the conveying bin 2 when kitchen waste needs to be processed. Driven by the screw 7, the waste can move from bottom to top. A collection bin for solid waste can be placed on one side of the device, whereby the solid waste can be effectively collected. Meanwhile, the wastewater containing oil can pass through the semi-circular filter 8 and enter the discharge trough 13. The shower head 40 located above the higher end of the screw 7 can clean the waste during the solid-liquid separation process by spraying water, effectively removing the oil stains carried on the surface of the waste. The shower head 40 is fixedly connected to the conveying bin 2, and the screw 7, the semi-circular filter 8, and the discharge trough 13 are all set in an inclined state.

[0041] Wastewater flowing along the feed trough 13 can enter the conveying pipe 17 connected at the tail end. One end of the conveying pipe 17 is slidably connected to a sealing plate 18. The opening size of the tail end of the conveying pipe 17 can be controlled by adjusting the position of the sealing plate 18, thereby adjusting the flow rate of wastewater entering the treatment tank 11. After adjustment, the sealing plate 18 structure is fixed by bolts 19.

[0042] A certain amount of tap water is pre-stored in the treatment tank 11. The tap water enters through the inlet pipe 4 and is injected into the tank 1 through the water injection pipe 37. The lower end of the partition 32 is not connected to the bottom of the treatment tank 11. The water level of the stored tap water is higher than the lowest end of the partition 32. The float 33 installed in the treatment tank 11 can detect the liquid level in real time according to the pressure change and in conjunction with the limit switch 24. When the liquid level is found to be low, and the sewage discharged into the treatment tank 11 is insufficient to support the liquid level to maintain the original height, the solenoid valve 25 can inject tap water into the treatment tank 11 through the water injection pipe 37 to maintain the liquid level.

[0043] When the equipment is running, the shower pipe 10 can always supply tap water to the shower head seat 40. That is, the water in the three-way pipe 21 and the three-way pipe 23 is always in a flowing state. In order to improve the showering effect and prevent the temperature of the sewage in the treatment tank 11 from dropping, the water inlet pipe 4 needs to be connected to a small water heater, so as to effectively wash the oil stains on the surface of the garbage and prevent the oil stains from condensing due to the injection of cold water into the treatment tank 11.

[0044] To ensure the temperature balance of the wastewater in the treatment tank 11 and to prevent the wastewater temperature from dropping because hot water cannot be continuously injected into the treatment tank 11 when the wastewater level is balanced, a heating rod 20 structure is installed. This structure can detect the temperature of the wastewater in the treatment tank 11 in real time and automatically activate the heating rod 20 to heat the wastewater when the temperature is low, thus preventing oil from condensing.

[0045] The wastewater entering the treatment tank 11 from one end of the conveying pipe 17 consists of water and oil. The water can quickly dissolve into the tap water pre-placed in the treatment tank 11, while the oil floats on the water surface. The accumulated oil can flow along the "S"-shaped loop formed by the baffles 32 to the opening pipe 31. Since the oil floats on the water surface, the opening height of the opening pipe 31 can be adjusted to allow the oil to enter the opening pipe 31 and flow into the plastic bucket 9 from the collection pipe 12. The opening height of the opening pipe 31 can be adjusted by rotation. The oil flowing into the plastic bucket 9 can be collected well, greatly improving the purity of the oil and facilitating subsequent refining and processing.

[0046] To ensure the dynamic balance of the wastewater level within the treatment tank 11, a wastewater discharge structure is also provided. Wastewater enters the discharge tank 30 through the short pipe 36, and then flows into the discharge chamber 28 through the long pipe 35. To prevent oil in the wastewater from failing to rise to the surface due to water flow and thus being discharged from the discharge tank 30, a sleeve 38 is connected to the upper end of the short pipe 36 within the discharge tank 30. The upper end of the sleeve 38 is closer to the upper end of the discharge tank 30 than to the lower end, allowing the oil in the wastewater flowing from the upper end of the short pipe 36 to be more readily discharged. It easily floats to the upper liquid surface of the sewage tank 30 and will not continue to flow into the long pipe 35 along the water flow, thereby further reducing the oil content of the sewage discharged to the outside. The sewage entering the sewage tank 28 can enter the sewage pipe 6 and then complete the sewage discharge. By setting the structure of sealing pipe 39 and T-type plug 34, when the T-type plug 34 moves down, it can pass through the sealing pipe 39 to seal the sewage pipe 6. The sewage discharge efficiency of the sewage pipe 6 can be adjusted by controlling the descent height of the T-type plug 34. When the equipment is running, the upper end of the sealing pipe 39 is in a closed state.

[0047] Under normal conditions, the height of the top of the sewage tank 30 is higher than the liquid level in the treatment tank 11. As the oil collected on the liquid surface of the sewage tank 30 accumulates more and more as the equipment operates, water can be injected into the treatment tank 11 and the opening pipe 31 can be rotated to increase the opening height, preventing sewage from directly entering the collection pipe 12. Adjust the T-type plug 34 to close the sewage pipe 6. At this time, sewage can directly enter the sewage tank 30, allowing the oil stored inside to be released into the treatment tank 11. Then, all structures are reset, and sewage separation continues.

[0048] When cleaning is required, stop putting garbage into the equipment, open the cleaning window 14, and aim one end of the spray gun 5 at the opening of the cleaning window 14. Use the spray gun 5 to rinse the material trough 13. At this time, the T-shaped plug 34 moves up, so that the upper end of the sealing pipe 39 opens. At this time, the wastewater generated during cleaning can enter the treatment box 11 and be discharged directly from the sealing pipe 39 into the drain pipe 6, which improves the cleaning efficiency.

[0049] The above description of the embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A solid-liquid separation device for kitchen waste, comprising a housing (1), characterized in that, The box (1) is connected to a conveying chamber (2) and a door (3). The lower end of the conveying chamber (2) is connected to a feeding trough (13). A semi-circular filter screen (8) is connected to the feeding trough (13). A screw (7) is provided above the semi-circular filter screen (8). The screw (7) is rotatably connected to the feeding trough (13). One end of the screw (7) is connected to a driving component for rotating the screw (7). One end of the feeding trough (13) is connected to a conveying pipe (17). The box (1) is connected to a processing box (11), and an open pipe (31) is connected to the processing box (11). One end of the open pipe (31) is connected to a collection pipe (12), and a plastic bucket (9) is set below one end of the collection pipe (12). A long pipe (35) is connected to the processing box (11), and a sewage box (30) is connected to the upper end of the long pipe (35). A short pipe (36) is connected to the sewage box (30). A sewage chamber (28) is connected to the lower end of the processing box (11), and a sewage pipe (6) is connected to the sewage chamber (28). A water inlet pipe (4) is connected to the processing box (11), and a three-way pipe (21) is connected to one end of the water inlet pipe (4). A water injection pipe (37) is connected to one end of the three-way pipe (21) through a solenoid valve (25). A cleaning mechanism for cleaning the processing box (11) is connected to the other end of the three-way pipe (21). A limit switch (24) is connected to the inner wall of the processing box (11), a float ball (33) is connected to the limit switch (24), a sleeve (38) is slidably fitted on the short tube (36), and a heating rod (20) is connected inside the processing box (11). The upper end of the short pipe (36) is higher than the bottom surface of the sewage box (30), and the lower end of the short pipe (36) is lower than the lower end of the partition (32).

2. The solid-liquid separation device for kitchen waste according to claim 1, characterized in that, The driving component includes a motor (16), the output end of which is connected to one end of a screw (7) via a chain (15).

3. The solid-liquid separation device for kitchen waste according to claim 1, characterized in that, One end of the conveying pipe (17) is connected to a sealing plate (18) by bolts (19), and the sealing plate (18) has a groove.

4. The solid-liquid separation device for kitchen waste according to claim 1, characterized in that, The outside of the collection tube (12) is connected to a deflection bar (29), and the outside of the processing box (11) is connected to an arc frame (27). The deflection bar (29) is slidably connected to the arc frame (27).

5. A solid-liquid separation device for kitchen waste according to claim 1, characterized in that, The cleaning mechanism includes a spray gun (5), a three-way pipe (21) is connected to a three-way pipe (23) through a connecting pipe (22), the spray gun (5) is connected to one end of the three-way pipe (23), a sealing pipe (39) is connected to the drain pipe (6), the upper end of the sealing pipe (39) passes through the treatment box (11) and enters the treatment box (11), a T-shaped plug (34) is provided above the sealing pipe (39), an electric push rod (26) is connected to the upper end of the T-shaped plug (34), and the electric push rod (26) is connected to the inner wall of the treatment box (11).

6. The solid-liquid separation device for kitchen waste according to claim 1, characterized in that, The processing box (11) is connected to a partition (32), which is alternately and equidistantly connected to the inner wall of the processing box (11).

7. A solid-liquid separation device for kitchen waste according to claim 5, characterized in that, One end of the three-way pipe (23) is connected to a rinsing pipe (10), and the other end of the rinsing pipe (10) passes through the conveying chamber (2) and is connected to a shower head seat (40). The shower head seat (40) is located directly above one end of the screw (7), and a cleaning window (14) is rotatably connected to the outside of the discharge trough (13).

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