A kitchen waste solid-liquid impurity separator

Abstract

This invention relates to the field of separation device technology, specifically disclosing a solid-liquid impurity separator for kitchen waste, comprising: a housing; an oil-water collection box disposed within the housing, a signal collection module mounted on the oil-water collection box, and a control module within the signal collection module; an upper submerged electrode mounted on the oil-water collection box, with multiple electrode needles at its bottom; the signal collection module is capable of analyzing and calculating two conductivity step changes of the upper submerged electrode and one conductivity step change of the lower submerged electrode; and an oil collection component mounted inside the oil-water collection box, the oil collection component having an annular collection shell and a fixing cylinder, and capable of reducing the oil surface area and increasing the thickness; this kitchen waste solid-liquid impurity separator accurately determines the layer interface and oil layer thickness, while significantly improving the accuracy of oil-water separation by changing the oil layer thickness.

Description

Technical Field

[0001] This invention relates to the field of separation device technology, specifically to a solid-liquid impurity separator for kitchen waste. Background Technology

[0002] The kitchen waste solid-liquid impurity separator is a specialized device for processing kitchen waste such as vegetable leaves, fruit peels, leftover food, and bones. Its core function is to use physical separation technology to efficiently separate solid impurities such as food scraps and bone fragments from liquid components in kitchen waste, while filtering out fine impurities, thus achieving preliminary reduction, harmlessness, and resource utilization pretreatment of kitchen waste.

[0003] Existing solid-liquid impurity separators separate oil and water into layers through sedimentation, and then collect the separated oil. Traditional methods are easily affected by local bubbles, impurities, etc. It is difficult to accurately identify the oil-water interface by using only a single or a few measurement points, resulting in large errors in oil layer thickness determination and affecting the oil-water separation effect. In particular, when the oil layer thickness is small, the efficiency and effect of oil-water separation will be affected, and the purity of the separated oil phase will not meet the standards, thus losing its reuse value. Summary of the Invention

[0004] This invention provides a solid-liquid impurity separator for kitchen waste, aiming to solve the problem in related technologies where it is difficult to accurately identify the oil-water interface, resulting in large errors in oil layer thickness determination. When the oil layer thickness is small, the efficiency and effect of oil-water separation will be affected, and the purity of the separated oil phase will not meet the standards, thus losing its reuse value.

[0005] The present invention provides a solid-liquid impurity separator for kitchen waste, comprising:

[0006] Box;

[0007] The oil-water collection box is located inside the box, and a signal collection module is installed on the oil-water collection box. The signal collection module contains a control module.

[0008] The upper submersible electrode is raised and lowered on the oil-water collection box. Multiple electrode needles are installed at the bottom of the upper submersible electrode. The upper submersible electrode is inserted into the oil layer by air and moves towards the water layer, and two step changes in conductivity are measured.

[0009] The submerged water electrode is installed in the oil-water collection box. Multiple electrode needles are installed at the top of the submerged water electrode. The submerged water electrode moves from the water layer to the oil layer and measures a step change in conductivity.

[0010] The signal acquisition module can analyze and calculate the two conductivity step changes of the upper submerged water electrode and the one conductivity step change of the lower submerged water electrode. Combined with the multi-needle fusion results of the upper and lower submerged dual electrode groups, the module further calculates and determines the layer interface and oil layer thickness through weighted averaging and feeds it back to the control module.

[0011] The oil collection component is installed inside the oil-water collection box. The oil collection component has an annular collection shell and a fixed cylinder. The fixed cylinder is located at the center of the annular collection shell. The annular space between the annular collection shell and the fixed cylinder is the first oil inlet. The top inlet of the fixed cylinder is the second oil inlet. The control module can change the oil inlet according to the judgment data. The oil collection component can reduce the oil plane and increase the thickness.

[0012] Preferably, each of the inner walls of the oil-water collection box is provided with a support plate, one of the support plates is equipped with a motor at its top, and the output end of the motor is equipped with a gear. The upper submersible electrode is raised and lowered on the support plate, and one side of the outer wall of the upper submersible electrode is provided with teeth that mesh with the gear. The lower submersible electrode is raised and lowered inside the oil-water collection box, and the upper and lower submersible electrodes are located at different positions inside the oil-water collection box. The signal collection module is installed on the support plate and can collect, integrate, and feed back the data.

[0013] Preferably, the synchronous measurement results of multiple electrode needles on the upper and lower submerged water electrodes are used to determine the overall crossing of the oil-water interface by majority voting, and the oil-water interface depth is determined by combining the multi-needle fusion results of the upper and lower submerged dual electrode groups.

[0014] Preferably, the oil collection component includes: a rotating ring, a connecting piece, and a rotating blade. Multiple rotating blades are provided on the outer circumferential surface of the fixed cylinder and the inner circumferential surface of the annular collection shell, and the multiple rotating blades are evenly spaced circumferentially. When the multiple rotating blades are rotated to a horizontal state, they can form an annular sealing plate. A conical funnel is provided at the bottom of the annular collection shell, and a telescopic tube is provided at the bottom of the conical funnel. The telescopic tube can extend and retract when the oil collection component is raised and lowered. An inclined tube is provided on one side of the inner wall of the oil-water collection box, and one end of the inclined tube is connected to the telescopic tube. A suction pump is provided on the outer wall of the annular collection shell, and a collection hole is provided at the center of the fixed cylinder.

[0015] Preferably, the annular collecting shell is composed of two circular cylinders with different diameters and an annular interlayer between them. A rotating shaft is fixedly installed on the flipping blade. The two ends of the rotating shaft are rotatably connected to the annular collecting shell and the fixed cylinder, respectively. The rotating shaft extends to the interlayer position of the annular collecting shell. A connecting piece is fixedly installed at the end of the extended rotating shaft. The rotating ring is rotatably installed in the annular interlayer of the annular collecting shell and is rotatably connected to the connecting piece, so that the rotating ring controls the rotation of the flipping blade through the connecting piece.

[0016] Preferably, the outer periphery of the annular collection shell is symmetrically provided with two fixing blocks. The bottom wall inside the oil-water collection box is provided with a lead screw and a guide rod. The lead screw is threadedly connected to one of the fixing blocks, and the guide rod is slidably connected to the other fixing block. A motor is provided at the bottom of the oil-water collection box, and the motor is drivenly connected to the lead screw.

[0017] Preferably, the inside of the container is provided with an oil cylinder, which is connected to an inclined pipe, and a one-way valve is provided at the connection point between the two. The outer wall of the container is provided with a lifting component, which is used to lift the garbage can to dump kitchen waste.

[0018] Preferably, the top of the box is provided with a waste trough, and a crushing component is provided inside the box. The crushing component is located below the waste trough and is used to crush the kitchen waste contained in the waste trough. The box is provided with a first compression sleeve and a second compression sleeve. A protective box is provided below the crushing component and is connected to the first compression sleeve so that the crushed kitchen waste enters the interior of the first compression sleeve through the protective box. The diameter of the second compression sleeve is larger than that of the first compression sleeve, and the second compression sleeve is fitted on the outer circumferential surface of the first compression sleeve, and the axes of the two coincide.

[0019] Preferably, the second extrusion sleeve and the first extrusion sleeve are arranged at an inclination inside the housing. The first extrusion sleeve is equipped with a conveying auger, and the second extrusion sleeve is fitted onto one end of the first extrusion sleeve and is equipped with a drive motor. The output end of the drive motor is connected to the conveying auger for transmission.

[0020] Preferably, an elastic sealing element is provided at the end of the first extrusion sleeve away from the drive motor, and a filter hole is provided on the outer peripheral surface of the end of the first extrusion sleeve away from the drive motor. The elastic sealing element is used to intercept and extrude kitchen waste, and a guide tube is provided on the outer peripheral surface of the second extrusion sleeve.

[0021] The beneficial effects of this invention are:

[0022] Accurate determination of oil-water interface and oil layer thickness: By moving the upper and lower water electrodes in opposite directions, the difference in conductivity between water and oil is utilized. Combined with the synchronous measurement results of multiple electrode needles, the interference of local bubbles and impurities is eliminated by majority voting. After multi-needle fusion and weighted average calculation, the layer interface and oil layer thickness are accurately determined. At the same time, changing the oil layer thickness greatly improves the accuracy of oil-water separation.

[0023] The oil collection device can automatically switch between the first and second oil inlets according to the oil layer thickness. It can also reduce the oil plane and increase the thickness through structural design to adapt to different oil layer conditions, improve the targeting and efficiency of oil collection, reduce oil residue, and improve collection efficiency and effect. Attached Figure Description

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0025] Figure 2 This is a schematic diagram of the crushing component structure of the present invention.

[0026] Figure 3 This is a schematic diagram of the second extrusion sleeve structure of the present invention.

[0027] Figure 4 This is a schematic diagram of the conveying auger structure of the present invention.

[0028] Figure 5 This is a schematic diagram of the oil-water collection box structure of the present invention.

[0029] Figure 6 This is the present invention. Figure 5 Enlarged view of point A in the middle.

[0030] Figure 7 This is a schematic diagram of the flip-leaf structure of the present invention.

[0031] Figure 8 This is a schematic diagram of the rotating ring structure of the present invention.

[0032] Figure 9 This is a schematic diagram of the electrode needle structure of the present invention.

[0033] Figure 10 This is a schematic diagram of the oil layer planar thickness according to the present invention.

[0034] Figure 11 This is a schematic diagram of the oil layer thickness after the oil layer plane is reduced in size according to the present invention.

[0035] Figure label:

[0036] 10. Housing; 11. Waste trough; 12. Crushing assembly; 13. Second extrusion sleeve; 14. First extrusion sleeve; 15. Filter hole; 16. Conveying auger; 17. Drive motor; 19. Guide pipe; 20. Oil-water collection box; 21. Upper submersible electrode; 22. Lower submersible electrode; 23. Tooth; 24. Motor; 25. Gear; 27. Signal collection module; 29. ​​Electrode needle; 30. Lifting assembly; 40. Annular collection shell; 41. Tilting blade; 42. Rotating ring; 43. Connecting piece; 44. Rotating shaft; 46. Fixed cylinder; 47. Telescopic pipe; 48. Inclined pipe; 50. Oil cylinder; 60. Collection hole; 70. Suction pump; 80. Fixed block; 81. Lead screw; 82. Guide rod. Detailed Implementation

[0037] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0038] like Figures 1 to 11As shown, a kitchen waste solid-liquid impurity separator of the present invention includes: a housing 10, an oil-water collection box 20, an upper submersible electrode 21, a lower submersible electrode 22, and an oil collection component. The oil-water collection box 20 is disposed on the bottom wall inside the housing 10 and is used to hold the oil and water separated from the solids. The oil collection component is movably disposed inside the oil-water collection box 20. The upper submersible electrode 21 and the lower submersible electrode 22 are movably disposed on the oil-water collection box 20. The oil collection component is movably disposed inside the oil-water collection box 20, and the oil collection component can adjust the collection opening according to the thickness of the oil layer. The oil collection component can also prevent newly separated liquid from disturbing the already separated oil.

[0039] During separation, the upper submerged water electrode 21 and the lower submerged water electrode 22 move in opposite directions. This allows the upper submerged water electrode 21 to move from oil to water, while the lower submerged water electrode 22 moves from water to oil. Since water is a conductor, and its conductivity is even stronger when it contains impurities, while oil is an insulator, the dielectric constants of the two are very different. Therefore, when the upper submerged water electrode 21 moves from oil to water, both electrodes are inserted into the liquid. When the electrodes cross the oil-water interface, the conductivity changes suddenly. Thus, the upper submerged water electrode 21 and the lower submerged water electrode 22 can accurately determine the oil-water interface. At the same time, the depth of descent of the upper submerged water electrode 21 can be used to determine the thickness of the oil layer. This allows the oil collection device to adjust the size of the collection port according to the oil layer thickness, thereby improving the collection efficiency and effect. Furthermore, the oil collection device can buffer the newly separated liquid, improving separation efficiency while ensuring the stability of the stratified system.

[0040] like Figures 1 to 4 As shown, a waste trough 11 is provided on the top of the container 10. The waste trough 11 is square and its opening faces upward. The waste trough 11 is used to temporarily store kitchen waste. A crushing assembly 12 is provided inside the container 10. The crushing assembly 12 is located below the waste trough 11 and is used to crush the kitchen waste in the waste trough 11 so that it can be separated into solid and liquid components by subsequent compression. A first compression sleeve 14 and a second compression sleeve 13 are provided inside the container 10. A protective box is provided below the crushing assembly 12 and is connected to the first compression sleeve 14 so that the crushed kitchen waste can pass through the protective box. The box enters the interior of the first extrusion sleeve 14. The diameter of the second extrusion sleeve 13 is larger than that of the first extrusion sleeve 14, and the second extrusion sleeve 13 is fitted onto the outer circumferential surface of the first extrusion sleeve 14, with their axes coinciding. The second extrusion sleeve 13 and the first extrusion sleeve 14 are installed at an inclination inside the box 10 so that the separated liquid can flow downward by gravity. A conveying auger 16 is installed inside the first extrusion sleeve 14, and a drive motor 17 is installed at one end of the second extrusion sleeve 13 fitted onto the first extrusion sleeve 14. The output end of the drive motor 17 is connected to the conveying auger 16 for transmission.

[0041] An elastic sealing element is provided at the end of the first extrusion sleeve 14 away from the drive motor 17, and a filter hole 15 is provided on the outer peripheral surface of the end of the first extrusion sleeve 14 away from the drive motor 17. The elastic sealing element is used to intercept and extrude kitchen waste. A guide tube 19 is provided on the outer peripheral surface of the second extrusion sleeve 13.

[0042] When solid-liquid separation is performed, after the kitchen waste enters the waste tank 11, the crushing component 12 crushes large particles or flexible waste. The crushed waste enters the first extrusion sleeve 14 through the protective box. Then, the drive motor 17 drives the conveying auger 16 to rotate. The rotation of the conveying auger 16 moves the crushed kitchen waste toward the elastic sealing member. As the conveying auger 16 continues to convey, the waste continues to accumulate at the elastic sealing member, and pressure is formed to separate the solid and liquid. The separated liquid will enter the second extrusion sleeve 13 through the filter hole 15. Since the second extrusion sleeve 13 is also in an inclined state, the separated liquid flows from the extrusion end toward the drive motor 17 and enters the oil-water collection box 20 through the guide pipe 19.

[0043] like Figures 4 to 11 As shown, support plates are provided on the inner walls of the oil-water collection box 20. A motor 24 is installed on the top of one of the support plates, and a gear 25 is installed at the output end of the motor 24. The upper submersible electrode 21 is raised and lowered on the support plate. The upper end of the upper submersible electrode 21 is a square rod, and the lower end is provided with multiple electrode needles 29, which are evenly spaced as shown in the figure. Figure 9 As shown, the upper submerged water electrode 21 has teeth 23 on one outer wall, which mesh with gear 25. The lower submerged water electrode 22 is raised and lowered inside the oil-water collection box 20, and multiple electrode needles 29 are also provided on the top of the lower submerged water electrode 22. In this application, the lower submerged water electrode 22 is raised and lowered by a telescopic component, and the upper submerged water electrode 21 and the lower submerged water electrode 22 are located at different positions inside the oil-water collection box 20 to improve the measurement accuracy of both and ensure the accuracy of separation and collection. A signal collection module 27 is provided on the support plate, which can collect, integrate and feed back the data.

[0044] When determining the oil-water interface, the telescopic component drives the submerged water electrode 22 to rise from the water into the oil. When the conductivity suddenly changes by 3-6 orders of magnitude, this is the core signal for interface identification. At the same time, the motor 24 drives the gear 25 to rotate. Since the teeth 23 mesh with the gear 25, the gear 25 and the teeth 23 work together to drive the upper submerged water electrode 21 to move downward and insert into the oil towards the interface. Similarly, when the bottom of the upper submerged water electrode 21 passes through the interface, the conductivity will also change suddenly. Then, the interface is accurately determined by the two submerged water electrodes. At the same time, the oil layer thickness is identified by the difference in conductivity and dielectric constant between air and oil. When the electrode is inserted into the oil layer from the air, the electrical parameters will undergo the first step change. After contacting the oil layer, the conductivity increases slightly but is significantly higher than that of air, and the dielectric constant jumps to 2-3. When the electrode is inserted into the water layer from the oil layer, the electrical parameters will undergo the second step change, and the amplitude is much greater than that of air and oil. After the interface determination is completed, the thickness can be determined by reading the scale of the upper submerged water electrode 21.

[0045] Using the synchronous measurement results of multiple electrode needles 29, the misjudgment of a single electrode needle 29, such as interference from local bubbles or impurities, is eliminated by a "majority vote". Let the total number of electrode needles 29 of the upper submersible electrode 21 and the lower submersible electrode 22 be n. When the conductivity mutation threshold is met... Number of electrode needles 29 At that time, it was determined that the entire system crossed the oil-water interface, among which, For the Real-time conductivity of the root electrode needle 29.

[0046] The submerged electrode 21 is calculated based on the interface depth of the multi-electrode needle 29, where the interface depth of a single needle is: the... The interface depth of the submerged electrode needle 29 is:

[0047]

[0048] in, For the The distance from the surface of the oil layer to the point of abrupt change in conductivity of the upper electrode needle 29 of the submerged electrode 21. Outlier removal: Remove Outliers deviating from the mean by more than two standard deviations, and extreme values ​​caused by local disturbances, are retained in the valid dataset. ;

[0049] Finally, the interface depth measured by the submerged electrode 21 after data fusion is:

[0050]

[0051] The calculation of the interface depth of the submerged water electrode 22 based on the multi-electrode needle 29 is the same as the steps described above, and is measured by multiple electrode needles 29. I will not go into too much detail here.

[0052] Combining the multi-needle fusion results of the upper and lower dual-electrode groups, the systematic error is further reduced by weighted averaging, satisfying the following calculation formula:

[0053]

[0054] in, The final determined oil-water interface depth, The depth of the oil-water interface measured by the submerged water electrode 21. The depth of the oil-water interface is measured by the submerged water electrode 22.

[0055] At this time, the signal collection module 27 can feed back the processed information to the control module. The control module can accurately calculate the layer interface and thickness based on the information, so as to control the size of the oil collection port and the descent speed of the oil collection component according to the oil layer thickness, so as to improve the oil collection efficiency and ensure the collection effect. When the oil layer thickness becomes thinner, the control module controls the oil collection port of the oil collection component to become smaller. When the oil layer thickness reaches the set threshold, the control module controls the oil collection component to change the oil layer thickness, and then quickly and accurately extracts the oil layer again.

[0056] like Figures 5 to 11 As shown, the oil collection component includes: an annular collection housing 40, a rotating ring 42, a connecting piece 43, a rotating shaft 44, a tilting blade 41, and a fixed cylinder 46. The annular collection housing 40 is vertically mounted inside the oil-water collection box 20. The fixed cylinder 46 is located at the center of the annular collection housing 40, and the axis of the fixed cylinder 46 coincides with that of the annular collection housing 40, and the two are fixedly connected. Multiple tilting blades 41 are provided on the outer circumferential surface of the fixed cylinder 46 and the inner annular surface of the annular collection housing 40, and the multiple tilting blades 41 are circumferentially uniform. The multiple rotating blades 41 are spaced apart and can form a ring-shaped sealed plate when rotated to a horizontal state to prevent odors from floating upwards. A conical funnel is provided at the bottom of the annular collection shell 40, and a telescopic tube 47 is provided at the bottom of the conical funnel. The telescopic tube 47 can extend and retract when the oil collection component is raised and lowered. An inclined tube 48 is provided on one side of the inner wall of the oil-water collection box 20, and one end of the inclined tube 48 is connected to the telescopic tube 47. A suction pump 70 is provided on the outer wall of the annular collection shell 40, and a collection hole 60 is provided at the center of the fixed cylinder 46.

[0057] The annular collection housing 40 consists of two annular cylinders of different diameters with an annular interlayer between them. A rotating shaft 44 is fixedly installed on the flipping blade 41. The two ends of the rotating shaft 44 are rotatably connected to the annular collection housing 40 and the fixed cylinder 46, respectively. The rotating shaft 44 extends to the interlayer position of the annular collection housing 40. A connecting piece 43 is fixedly installed at the end of the extended rotating shaft 44. A rotating ring 42 is rotatably installed in the annular interlayer of the annular collection housing 40 and is rotatably connected to the connecting piece 43, so that the rotating ring 42 can rotate the flipping blade 41 under the control of the connecting piece 43 to change the size of the collection port of the oil collection component.

[0058] After the signal collection module 27 determines the layering interface and thickness, when it is necessary to collect the layered oil, the control module controls the rotating ring 42 to rotate. The rotation of the rotating ring 42 drives the connecting piece 43 to rotate around the connection point of the rotating shaft 44, thereby driving the rotating shaft 44 to rotate. The rotation of the rotating shaft 44 drives the tilting blades 41 to rotate, so that the multiple tilting blades 41 form a vortex shape. When the oil collection component moves downward as a whole, the oil can quickly enter the inner ring surface of the annular collection shell 40. The oil flows downward through the gaps between the tilting blades 41 into the conical funnel, and... The oil and water collection box 20 is discharged through the telescopic pipe 47 and the inclined pipe 48. When the oil layer reaches the preset threshold, the control module controls the rotating ring 42 to reset and rotate, so that the multiple flipping blades 41 rotate to a horizontal state and a sealed state. Then the oil collection component moves downward to collect the thin oil layer to the top of the flipping blades 41, causing the oil plane to shrink and the thickness to increase, and the oil is precisely separated into layers again. The suction pump 70 draws the water inside the oil and water collection box 20 to the top of the flipping blades 41 to make the liquid level rise. The oil enters the telescopic pipe 47 and the inclined pipe 48 through the collection hole 60 and is finally discharged.

[0059] like Figures 1 to 4 As shown, two fixing blocks 80 are symmetrically arranged on the outer periphery of the annular collection shell 40. The bottom wall of the oil-water collection box 20 is provided with a lead screw 81 and a guide rod 82. The lead screw 81 is threadedly connected to one of the fixing blocks 80, and the guide rod 82 is slidably connected to the other fixing block 80 to ensure the stability of the oil collection component's lifting and lowering and improve the accuracy of oil separation. A motor is provided at the bottom of the oil-water collection box 20, and the motor is drivenly connected to the lead screw 81.

[0060] When the oil collection component needs to be raised or lowered, the motor will drive the lead screw 81 to rotate. The rotation of the lead screw 81 will drive the fixed block 80 to rise or fall, so that the entire oil collection component can be raised or lowered. The guide rod 82 improves the stability of the oil collection component during movement.

[0061] like Figures 1 to 2As shown, the inside of the container 10 is equipped with an oil cylinder 50, which is connected to the inclined pipe 48, and a one-way valve is provided at the connection point between the two. The outer wall of the container 10 is equipped with a lifting assembly 30, which is used to lift the garbage can and dump kitchen waste.

[0062] In the description of this invention, 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," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0063] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0064] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A solid-liquid impurity separator for kitchen waste, characterized in that, include: Box (10); The oil-water collection box (20) is installed inside the box (10), and a signal collection module (27) is installed on the oil-water collection box (20). The signal collection module (27) contains a control module. The upper submersible electrode (21) is raised and lowered on the oil-water collection box (20). Multiple electrode needles (29) are provided at the bottom of the upper submersible electrode (21). The upper submersible electrode (21) is inserted into the oil layer by air and moves towards the water layer, and two step changes in conductivity are measured. The sinking water electrode (22) is set up in the oil-water collection box (20). Multiple electrode needles (29) are set on the top of the sinking water electrode (22). The sinking water electrode (22) moves from the water layer to the oil layer and measures a step change in conductivity. The signal collection module (27) can analyze and calculate the two conductivity step changes of the upper submerged water electrode (21) and the one conductivity step change of the lower submerged water electrode (22). Combined with the multi-needle fusion results of the upper and lower submerged dual electrode groups, the layer interface and oil layer thickness are further calculated and determined by weighted average and fed back to the control module. The oil collection component is installed inside the oil and water collection box (20). The oil collection component has an annular collection shell (40) and a fixed cylinder (46). The fixed cylinder (46) is located at the center of the annular collection shell (40). The annular space between the annular collection shell (40) and the fixed cylinder (46) is the first oil inlet. The top inlet of the fixed cylinder (46) is the second oil inlet. The control module can change the oil inlet according to the judgment data. The oil collection component can reduce the oil plane and increase the thickness.

2. The kitchen waste solid-liquid impurity separator according to claim 1, characterized in that, The oil-water collection box (20) is provided with support plates on the inner walls of the two sides. A motor (24) is provided on the top of one of the support plates. A gear (25) is provided at the output end of the motor (24). The upper submersible electrode (21) is raised and lowered on the support plate. A tooth (23) is provided on one side of the outer wall of the upper submersible electrode (21). The tooth (23) meshes with the gear (25). The lower submersible electrode (22) is raised and lowered inside the oil-water collection box (20). The upper submersible electrode (21) and the lower submersible electrode (22) are located at different positions inside the oil-water collection box (20). The signal collection module (27) is provided on the support plate. The signal collection module (27) can collect, integrate and feed back the data.

3. The kitchen waste solid-liquid impurity separator according to claim 2, characterized in that, The synchronous measurement results of multiple electrode needles (29) on the upper submerged water electrode (21) and the lower submerged water electrode (22) are used to determine the overall crossing of the oil-water interface by majority voting, and the oil-water interface depth is determined by combining the multi-needle fusion results of the upper and lower submerged dual electrode groups.

4. The kitchen waste solid-liquid impurity separator according to claim 3, characterized in that, The oil collection component includes: a rotating ring (42), a connecting piece (43), and a flipping blade (41). Multiple flipping blades (41) are provided on the outer circumferential surface of the fixed cylinder (46) and the inner circumferential surface of the annular collection shell (40). The multiple flipping blades (41) are evenly spaced in the circumferential direction. When the multiple flipping blades (41) are flipped to the horizontal state, they can form an annular sealing plate. A conical funnel is provided at the bottom of the annular collection shell (40). A telescopic tube (47) is provided at the bottom of the conical funnel. The telescopic tube (47) can extend and retract when the oil collection component is raised and lowered. An inclined tube (48) is provided on one side of the inner wall of the oil-water collection box (20). One end of the inclined tube (48) is connected to the telescopic tube (47). A suction pump (70) is provided on the outer wall of the annular collection shell (40). A collection hole (60) is provided at the center of the fixed cylinder (46).

5. A kitchen waste solid-liquid impurity separator according to claim 4, characterized in that, The annular collection shell (40) is composed of two annular cylinders with different diameters and an annular interlayer between them. A rotating shaft (44) is fixedly installed on the flipping blade (41). The two ends of the rotating shaft (44) are rotatably connected to the annular collection shell (40) and the fixed cylinder (46) respectively. The rotating shaft (44) extends to the interlayer position of the annular collection shell (40). A connecting piece (43) is fixedly installed at the end of the rotating shaft (44). A rotating ring (42) is rotatably installed in the annular interlayer of the annular collection shell (40). The rotating ring (42) is rotatably connected to the connecting piece (43) so that the rotating ring (42) controls the rotation of the flipping blade (41) through the connecting piece (43).

6. A kitchen waste solid-liquid impurity separator according to claim 5, characterized in that, The outer periphery of the annular collection shell (40) is symmetrically provided with two fixing blocks (80). The bottom wall of the oil-water collection box (20) is provided with a lead screw (81) and a guide rod (82). The lead screw (81) is threadedly connected to one of the fixing blocks (80), and the guide rod (82) is slidably connected to the other fixing block (80). The bottom of the oil-water collection box (20) is provided with a motor, and the motor is connected to the lead screw (81) for transmission.

7. A kitchen waste solid-liquid impurity separator according to claim 6, characterized in that, The inside of the box (10) is provided with an oil cylinder (50), which is connected to the inclined pipe (48), and a one-way valve is provided at the connection point between the two. The outer wall of the box (10) is provided with a lifting component (30), which is used to lift the garbage can and dump kitchen waste.

8. A kitchen waste solid-liquid impurity separator according to claim 1, characterized in that, The top of the box (10) is provided with a waste trough (11). The inside of the box (10) is provided with a crushing component (12). The crushing component (12) is located below the waste trough (11) and is used to crush the kitchen waste contained in the waste trough (11). The inside of the box (10) is provided with a first extrusion sleeve (14) and a second extrusion sleeve (13). A protective box is provided below the crushing component (12) and is connected to the first extrusion sleeve (14) so ​​that the crushed kitchen waste enters the inside of the first extrusion sleeve (14) through the protective box. The diameter of the second extrusion sleeve (13) is larger than that of the first extrusion sleeve (14), and the second extrusion sleeve (13) is fitted on the outer circumferential surface of the first extrusion sleeve (14), and the axes of the two coincide.

9. A kitchen waste solid-liquid impurity separator according to claim 8, characterized in that, The second extrusion sleeve (13) and the first extrusion sleeve (14) are arranged in an inclined manner inside the box (10). The first extrusion sleeve (14) is provided with a conveying auger (16). The second extrusion sleeve (13) is sleeved on one end of the first extrusion sleeve (14) and a drive motor (17) is provided thereon. The output end of the drive motor (17) is connected to the conveying auger (16) for transmission.

10. A kitchen waste solid-liquid impurity separator according to claim 9, characterized in that, The first extrusion sleeve (14) is provided with an elastic sealing member at the end away from the drive motor (17), and a filter hole (15) is opened on the outer peripheral surface of the first extrusion sleeve (14) away from the drive motor (17). The elastic sealing member is used to intercept and extrude kitchen waste. The second extrusion sleeve (13) is provided with a guide tube (19) on its outer peripheral surface.

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