Industrial oil sludge separation device

Abstract

The utility model provides an industrial oil sludge separation device and relates to the field of waste oil recovery. The separation device comprises a treatment box body, the interior of the treatment box body is sequentially divided and communicated with a water inlet chamber, a demulsification chamber, a separation chamber and a recovery chamber in the horizontal direction, and the water inlet chamber is communicated with a water inlet pipe; the demulsification assembly comprises a nanometer microbubble generation structure and a first ultrasonic generation structure, the nanometer microbubble generation structure is used for conveying nanometer microbubble water to the water inlet chamber or / and the separation chamber, and the first ultrasonic generation structure is used for sending ultrasonic waves to the demulsification chamber; the recovery structure comprises a water outlet pipe and an oil outlet pipe; and the sound wave vibration assembly comprises an ultrasonic vibration grid and a second ultrasonic generation structure, the ultrasonic vibration grid is arranged in the recovery chamber in a liftable mode, and an ultrasonic transducer of the second ultrasonic generation structure is arranged on the ultrasonic vibration grid. The separation device effectively solves the problem of low extraction efficiency caused by adhesion of the high-viscosity oil sludge.

Description

Technical Field

[0001] This utility model relates to the field of waste oil recycling technology, and more specifically, to an industrial oil sludge separation device. Background Technology

[0002] Industrial waste oil refers to expired or contaminated oily substances generated during industrial production, machining, and petroleum refining. It often forms complex oil-water emulsions with water, solid particles, and chemical impurities. These emulsions form stable dispersions due to surfactant adsorption on the oil droplet surfaces, making separation of oil and water difficult by gravity alone and requiring specialized treatment. For example, cutting fluids from machining processes and oily wastewater from refineries are typical oil-water emulsions with complex compositions and high stability. Direct discharge leads to soil and water pollution, while effective separation allows for the recycling and reuse of oil resources.

[0003] The combined use of nano-microbubbles and ultrasound for demulsification is a common technique for separating oil sludge. After separation, the upper oil layer is extracted through an oil outlet pipe, and the lower water layer is discharged through a water outlet pipe. However, for high-viscosity oil sludge, the high viscosity and easy adhesion after separation often lead to low extraction efficiency, and oil droplets are easily left in the aqueous phase, which urgently requires technological improvement. Utility Model Content

[0004] The purpose of this invention is to provide an industrial oil sludge separation device, which aims to solve the technical problems mentioned in the background art.

[0005] The embodiments of this utility model are implemented as follows:

[0006] This application provides an industrial oil sludge separation device, comprising: a processing chamber, which is horizontally divided and connected to a water inlet chamber, a demulsification chamber, a separation chamber, and a recovery chamber, wherein the water inlet chamber is connected to a water inlet pipe, and the inlet end of the water inlet pipe is configured to receive an oil-water mixed emulsion; a demulsification assembly, comprising a nano-microbubble generating structure and a first ultrasonic generating structure, wherein the nano-microbubble generating structure is used to deliver nano-microbubble water to the water inlet chamber and / or the separation chamber, and the first ultrasonic generating structure is used to send ultrasonic waves to the demulsification chamber; a recovery structure, comprising a water outlet pipe and an oil outlet pipe, wherein the water outlet pipe is connected to the bottom region of the recovery chamber, and the oil outlet pipe is connected to the top region of the recovery chamber; and an acoustic vibration assembly, comprising an ultrasonic vibration grid and a second ultrasonic generating structure, wherein the ultrasonic vibration grid is vertically and vertically mounted in the recovery chamber, and the ultrasonic vibration grid is located below the inlet end of the oil outlet pipe, and the ultrasonic transducer of the second ultrasonic generating structure is mounted on the ultrasonic vibration grid for exciting the ultrasonic vibration grid to resonate.

[0007] Furthermore, based on the aforementioned scheme, the processing box is equipped with a hydraulic telescopic rod for driving the ultrasonic vibration grid to rise and fall.

[0008] Furthermore, based on the aforementioned scheme, the ultrasonic vibration grid is provided with a guide slider, and the inner wall of the recovery chamber is provided with a guide groove adapted to the guide slider.

[0009] Furthermore, based on the aforementioned scheme, the inlet end of the oil outlet pipe is threaded with a first adjusting pipe, which extends vertically along the recovery chamber and can adjust the insertion depth.

[0010] Furthermore, based on the aforementioned scheme, it also includes a water outlet sleeve with openings at both ends. One end of the water outlet sleeve is connected to the bottom of the recovery chamber, and the other end extends to the top area of ​​the recovery chamber and terminates therein. The bottom of the water outlet sleeve is provided with a water inlet opening that communicates with the recovery chamber.

[0011] The inlet end of the aforementioned water outlet pipe is connected to the inner cavity of the aforementioned water outlet sleeve, and the outlet end extends to the outer area of ​​the aforementioned processing box. The aforementioned ultrasonic vibration grid is provided with an avoidance opening for the aforementioned water outlet sleeve to pass through.

[0012] Furthermore, based on the aforementioned scheme, a second adjusting pipe is threadedly connected to the top of the aforementioned water outlet sleeve. The second adjusting pipe is coaxially sleeved outside the aforementioned water outlet sleeve and its extension height can be adjusted.

[0013] Furthermore, based on the aforementioned scheme, the processing box above the recycling chamber is provided with an inspection port, and the inspection port is detachably equipped with a sealing cover.

[0014] Furthermore, based on the aforementioned scheme, it also includes multiple separation baffles, which are sequentially arranged in the separation chamber along the fluid flow direction and alternately connected to the inner walls of opposite sides of the separation chamber to form a flow-deflecting channel.

[0015] Furthermore, based on the aforementioned scheme, a water distributor is provided at the outlet end of the aforementioned water inlet pipe to uniformly disperse the oil-water mixed emulsion into the aforementioned water inlet chamber.

[0016] Furthermore, based on the aforementioned scheme, the above-mentioned nano-microbubble generating structure includes a first nano-microbubble generator and a second nano-microbubble generator, wherein the outlet of the first nano-microbubble generator is connected to the water inlet chamber, and the outlet of the second nano-microbubble generator is connected to the separation chamber.

[0017] Compared with the prior art, the embodiments of this utility model have at least the following advantages or beneficial effects:

[0018] The industrial oil sludge separation device of this application utilizes a partitioned design of the processing tank. After the oil-water emulsion enters the inlet chamber through the inlet pipe, a nano-microbubble generating structure delivers nano-microbubble water to the inlet chamber, disrupting the emulsion layer through interfacial adsorption, oxidative free radicals, and kinetic properties. Simultaneously, a first ultrasonic generating structure emits ultrasonic waves in the demulsification chamber, enhancing the demulsification effect through cavitation, vibration, and thermal effects. After demulsification, the mixture enters the separation chamber, completes stratification, and flows into the recovery chamber. At this point, a liftable ultrasonic vibration grid descends below the oil-water separation layer interface, where a second ultrasonic generating structure excites a 20-50kHz high-frequency resonance, forming a shear wave at the bottom of the oil layer. This shear wave cuts the high-viscosity oil sludge into micro-clumps, which flow towards the outlet pipe under the combined action of gravity and vibration. Once the oil phase extraction is complete, the vibration grid switches to a 10-20kHz low-frequency mode, further stripping residual oil droplets from the water layer surface through cavitation. The advantages of this solution are: the ultrasonic vibration grid is precisely positioned below the oil-water interface, effectively solving the problem of low extraction efficiency caused by the adhesion of high-viscosity sludge, promoting the efficient flow of micro-clusters to the oil outlet pipe under the drive of gravity and vibration, while significantly reducing the oil residue in the aqueous phase, and significantly improving the oil sludge separation efficiency and resource recovery rate. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 Axiometric view of an industrial sludge separation device according to an embodiment of this utility model Figure 1 ;

[0021] Figure 2 Axiometric view of an industrial sludge separation device according to an embodiment of this utility model Figure 2 ;

[0022] Figure 3 This is an isometric view of the top plate of an industrial sludge separation device according to an embodiment of the present invention.

[0023] Figure 4 for Figure 3 A magnified view of part A in the image;

[0024] Figure 5 This is a cross-sectional view of an industrial sludge separation device according to an embodiment of the present invention;

[0025] Figure 6 This is a cross-sectional view of the recycling chamber in an embodiment of this utility model.

[0026] Icons: 1-Processing chamber, 101-Water inlet chamber, 102-Demulsification chamber, 103-Separation chamber, 104-Recovery chamber, 2-Water inlet pipe, 3-Maintenance port, 4-First ultrasonic generator structure, 5-First nano-microbubble generator, 6-Second nano-microbubble generator, 7-Drain port, 8-Exhaust port, 9-Oil outlet pipe, 10-Sealing cover plate, 11-Water outlet pipe, 12-Second ultrasonic generator structure, 13-Hydraulic telescopic rod, 14-Ultrasonic vibration grid, 15-Separation baffle plate, 16-First regulating pipe, 17-Water outlet sleeve, 18-Water inlet opening, 19-Water distributor, 20-Avoidance opening, 21-Guide chute, 22-Guide slider, 23-Second regulating pipe. Detailed Implementation

[0027] The embodiments of this application will now be described in detail with reference to the accompanying drawings. Example

[0028] Please refer to Figures 1-6 This application provides an industrial sludge separation device, comprising: a processing tank 1, which is horizontally divided and connected to an inlet chamber 101, a demulsification chamber 102, a separation chamber 103, and a recovery chamber 104; the inlet chamber 101 is connected to an inlet pipe 2, the inlet end of which is configured to connect to an oil-water emulsion; and a demulsification assembly, comprising a nano-microbubble generating structure and a first ultrasonic generating structure 4, wherein the nano-microbubble generating structure is used to deliver nano-microbubble water to the inlet chamber 101 and / or the separation chamber 103, and the first ultrasonic generating structure 4 is used to send ultrasonic waves to the demulsification chamber 102. The system includes a sound wave; a recovery structure comprising a water outlet pipe 11 and an oil outlet pipe 9, wherein the water outlet pipe 11 is connected to the bottom region of the recovery chamber 104 and the oil outlet pipe 9 is connected to the top region of the recovery chamber 104; and a sound wave vibration assembly comprising an ultrasonic vibration grid 14 and a second ultrasonic generating structure 12, wherein the ultrasonic vibration grid 14 is vertically and vertically mounted in the recovery chamber 104 and is located below the inlet end of the oil outlet pipe 9, and the ultrasonic transducer of the second ultrasonic generating structure 12 is mounted on the ultrasonic vibration grid 14 for exciting the ultrasonic vibration grid 14 to resonate.

[0029] The industrial oil sludge separation device of this application, through the partitioned design of the processing tank 1, allows the oil-water mixed emulsion to enter the inlet chamber 101 via the inlet pipe 2. A nano-microbubble generating structure then delivers nano-microbubble water to the inlet chamber 101, disrupting the emulsion layer through interfacial adsorption, oxidative free radicals, and kinetic properties. Simultaneously, the first ultrasonic generating structure 4 emits ultrasonic waves in the demulsification chamber 102, enhancing the demulsification effect through cavitation, vibration, and thermal effects. After demulsification, the mixture enters the separation chamber 103, completes stratification, and flows into the recovery chamber 104. At this point, the liftable ultrasonic vibration grid 14 descends below the oil-water separation layer interface, where the second ultrasonic generating structure 12 excites a 20-50kHz high-frequency resonance, forming a shear wave at the bottom of the oil layer. This shear wave cuts the high-viscosity oil sludge into micro-clusters, which flow towards the oil outlet pipe 9 under the combined action of gravity and vibration. Once the oil phase extraction is complete, the vibration grid switches to a 10-20kHz low-frequency mode, further stripping residual oil droplets from the water layer surface through cavitation. The advantages of this solution are: the ultrasonic vibration grid 14 is precisely positioned below the oil-water interface, effectively solving the problem of low extraction efficiency caused by the adhesion of high-viscosity sludge, promoting the efficient flow of micro-clusters to the oil outlet pipe 9 under the drive of gravity and vibration, while significantly reducing the oil residue in the aqueous phase, and significantly improving the oil sludge separation efficiency and resource recovery rate.

[0030] Optionally, the ultrasonic vibration grid 14 adopts a rectangular frame structure consisting of two parallel vertical bars and multiple horizontal bars connecting them. The multiple horizontal bars are arranged in parallel and spaced intervals along the extension direction of the vertical bars to form a grid matrix. The advantages of this structure are: the rigid connection between the parallel vertical bars and the horizontal bars ensures uniform transmission of vibration energy, and the rectangular frame can be adapted to the cross-sectional dimensions of the recovery chamber 104 to achieve full coverage cutting of the bottom of the oil layer.

[0031] Both the demulsification chamber 102 and the separation chamber 103 are connected to a drain port 7. A flange is installed at the outlet of the drain port 7, which can be connected to an external sealing plate. When not in use, the sealing plate provides a seal; when it is necessary to drain the liquid inside the treatment tank 1, the liquid can be drained through the drain port 7. The top of the treatment tank 1 is provided with an exhaust port 8 and multiple maintenance ports 3, wherein the exhaust port 8 is connected to the separation chamber 103.

[0032] In a preferred embodiment, the processing box 1 is provided with a hydraulic telescopic rod 13 for driving the ultrasonic vibration grid 14 to rise and fall.

[0033] In the above embodiments, the height of the grid can be adjusted in real time according to the thickness of the sludge layers through precise control of the hydraulic telescopic rod 13, ensuring that it is always located below the oil-water separation layer interface and avoiding a decrease in cutting efficiency due to oil layer fluctuations. In addition, the hydraulic drive has a strong load capacity and can drive the grid to rise and fall smoothly in high-viscosity sludge, overcoming the viscous resistance of the sludge.

[0034] Preferably, there are two hydraulic telescopic rods 13, which act on both ends of the ultrasonic vibration grid 14 respectively, thereby improving the stability of the ultrasonic vibration grid 14 during lifting and lowering.

[0035] In a preferred embodiment, the ultrasonic vibration grid 14 is provided with a guide slider 22, and the inner wall of the recovery chamber 104 is provided with a guide groove 21 adapted to the guide slider 22.

[0036] In the above embodiments, the precise fit between the guide slider 22 and the groove provides rigid guidance for the lifting of the grille, ensuring that the grille moves smoothly in the high-viscosity sludge, avoiding skewing or jamming during the lifting process, and ensuring the uniformity of vibration cutting.

[0037] Optionally, the guide slider 22 and the guide groove 21 form a sliding guide structure. There are multiple sets of the above-mentioned sliding guide structures, which are evenly arranged around the ultrasonic vibration grid 14 to further improve the stability of the ultrasonic vibration grid 14 during lifting.

[0038] In a preferred embodiment, the inlet end of the oil outlet pipe 9 is threaded with a first regulating pipe 16, which extends along the vertical direction of the recovery chamber 104 and can adjust the insertion depth.

[0039] In the above embodiment, the insertion depth of the first regulating tube 16 can be flexibly adjusted by the threaded structure, which can accurately control the discharge height of the oil layer in the recovery chamber 104.

[0040] As a preferred embodiment, it also includes a water outlet sleeve 17 with openings at both ends. One end of the water outlet sleeve 17 is connected to the bottom of the recovery chamber 104, and the other end extends to the top area of ​​the recovery chamber 104 and terminates therein. The bottom of the water outlet sleeve 17 is provided with a water inlet opening 18 that communicates with the recovery chamber 104.

[0041] The inlet end of the outlet pipe 11 is connected to the inner cavity of the outlet sleeve 17, and the outlet end extends to the outer area of ​​the treatment box 1. The ultrasonic vibration grid 14 is provided with an avoidance opening 20 for the outlet sleeve 17 to pass through.

[0042] In the above embodiment, the water inlet 18 at the bottom of the outlet sleeve 17 ensures that only the separated bottom clear water enters the sleeve from the bottom of the recovery chamber 104, effectively preventing the entry of upper floating oil and insufficiently separated mixture. The design of the sleeve extending to the top area forces the water to flow in slowly only from the bottom opening and out through the outlet pipe 11, ensuring the reliability of the effluent water quality. In addition, the avoidance opening 20 of the ultrasonic vibration grid 14 is designed to avoid interference of the outlet sleeve 17 with the lifting and vibration of the ultrasonic vibration grid 14, ensuring that the ultrasonic vibration grid 14 can operate freely below the oil-water interface.

[0043] In a preferred embodiment, the top of the water outlet sleeve 17 is threadedly connected to a second adjusting pipe 23, which is coaxially sleeved outside the water outlet sleeve 17 and can adjust the extension height.

[0044] In the above embodiment, the extension height of the second regulating pipe 23 can be flexibly adjusted through the threaded structure, thereby changing the actual height of the water outlet sleeve 17. When it is necessary to increase the water level in the separation chamber 103 to increase the oil layer thickness, the second regulating pipe 23 can be screwed upward to raise its height; conversely, screwing it downward to lower its height can adapt to the separation requirements of different emulsions.

[0045] In a preferred embodiment, the processing box 1 above the recycling chamber 104 is provided with an inspection port, and the inspection port is detachably provided with a sealing cover 10.

[0046] In the above embodiments, the first regulating pipe 16 and the second regulating pipe 23 can be directly screwed or their angles adjusted on-site through the inspection port without disassembling other components, which greatly improves the adjustment efficiency for adapting to working conditions. At the same time, removing the sealing cover plate 10 makes it convenient to clean the sludge or solid impurities adhering to the surface of the ultrasonic vibration grid 14.

[0047] Optionally, the sealing cover 10 and the access port are detachably connected by bolts to enable quick disassembly or installation of the sealing cover 10.

[0048] The fixed end of the hydraulic telescopic rod 13 is rigidly connected to the sealing cover plate 10, and the movable end is firmly connected to the ultrasonic vibration grid 14. The guide groove 21 extends to the inspection port. When the sealing cover plate 10 is removed, the hydraulic telescopic rod 13 and the ultrasonic vibration grid 14 can be simultaneously pulled out of the recovery chamber 104 along the guide groove 21. The advantages of this design are: the linkage structure between the sealing cover plate 10 and the hydraulic telescopic rod 13 enables the rapid overall disassembly of the grid assembly without disassembling bolts or pipelines one by one, greatly shortening maintenance time; the design of the guide groove 21 extending to the inspection port provides full guidance for the lifting and disassembly of the grid, avoiding equipment collision damage due to deviation during extraction; the integrated extraction maintenance method allows for comprehensive inspection of the hydraulic telescopic rod 13, the vibration grid, and the guide assembly at the same time, which is especially suitable for rapid cleaning after high-viscosity sludge adhesion, significantly improving the convenience and efficiency of equipment maintenance.

[0049] In a preferred embodiment, a plurality of separation baffles 15 are also included, which are sequentially arranged in the separation chamber 103 along the fluid flow direction and are alternately connected to the inner walls of opposite sides of the separation chamber 103 to form a flow-deflecting channel.

[0050] In the above embodiments, the baffle channel extends the flow path and residence time of the fluid in the separation chamber 103, allowing the nanobubbles and oil droplets to have more sufficient contact and adsorption time, thereby improving the air flotation separation efficiency.

[0051] Optionally, a flow space is left between the bottom of the separation baffle 15 and the bottom surface of the separation chamber 103, allowing the separated water phase to flow through from the bottom, reducing turbulence disturbances caused by the flow of fluid between the baffle and the tank wall, and providing a waste liquid flow channel for cleaning the separation chamber 103, which facilitates sludge removal and maintenance.

[0052] As a preferred embodiment, the outlet end of the water inlet pipe 2 is provided with a water distributor 19, which is used to evenly disperse the oil-water emulsion into the water inlet chamber 101.

[0053] In the above embodiments, uniform water distribution allows the emulsion and nano-microbubble water to mix more thoroughly, improving the contact efficiency between nano-microbubbles and oil droplets and enhancing the demulsification effect.

[0054] In a preferred embodiment, the above-mentioned nano-microbubble generating structure includes a first nano-microbubble generator 5 and a second nano-microbubble generator 6. The outlet of the first nano-microbubble generator 5 is connected to the water inlet chamber 101, and the outlet of the second nano-microbubble generator 6 is connected to the separation chamber 103.

[0055] In the above embodiment, the structure of connecting the inlet chamber 101 and the separation chamber 103 with a first nano-microbubble generator 5 and a second nano-microbubble generator 6 respectively enables precise demulsification and separation in stages. In the inlet chamber 101 stage, the first nano-microbubble generator 5 pre-injects nano-microbubbles into the emulsion, utilizing their interfacial adsorption and oxidation effects to initially disrupt the stability of the emulsion layer, laying the foundation for subsequent ultrasonic demulsification. In the separation chamber 103 stage, the second nano-microbubble generator 6 supplements the injection with nano-microbubbles focused on flotation separation, extending the contact time between the bubbles and oil droplets and enhancing adsorption efficiency, thus promoting the rapid floating of the "bubble-oil droplet" complex. This dual-generator design, with its regional and functional division, avoids functional conflicts between a single bubble source in the demulsification and separation stages, improving both demulsification efficiency and flotation separation effect. Furthermore, the bubble injection volume and particle size can be independently adjusted according to the needs of different stages, further optimizing energy consumption and separation efficiency.

[0056] Furthermore, unless otherwise explicitly specified or limited, the terms "installation" and "connection" in this application embodiment should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. The terms "upper," "lower," "left," "right," "inner," "outer," and "side," etc., are merely for reference to the direction in the accompanying drawings or the usual placement of the product during use. They are only for clearly describing this application and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limitations on this application. The terms "first," "second," etc., are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance; "multiple" refers to at least two. In this application embodiment, the limitations on relative positional relationships such as parallel, perpendicular, and aligned are all relative to the current technological level and are not absolutely strict limitations. Slight deviations are allowed; approximations of parallel, perpendicular, and aligned are all acceptable. For example, "A and B are parallel" means that A and B are parallel or approximately parallel, and the angle between A and B can be between 0 degrees and 10 degrees.

[0057] The above are only some embodiments and implementation methods of this application. The protection scope of this application is not limited thereto. In the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. Any combination of features in different embodiments is also within the protection scope of this application. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the protection scope of this application.

Claims

1. An industrial oil sludge separation device, characterized in that, include: The processing tank (1) is divided and connected in the horizontal direction by a water inlet chamber (101), a demulsification chamber (102), a separation chamber (103) and a recovery chamber (104). The water inlet chamber (101) is connected to a water inlet pipe (2), and the inlet end of the water inlet pipe (2) is configured to be connected to an oil-water mixed emulsion. The demulsification assembly includes a nano-microbubble generating structure and a first ultrasonic generating structure (4), wherein the nano-microbubble generating structure is used to deliver nano-microbubble water to the water inlet chamber (101) and / or the separation chamber (103), and the first ultrasonic generating structure (4) is used to send ultrasonic waves to the demulsification chamber (102). The recycling structure includes a water outlet pipe (11) and an oil outlet pipe (9), wherein the water outlet pipe (11) is connected to the bottom region of the recycling chamber (104) and the oil outlet pipe (9) is connected to the top region of the recycling chamber (104); as well as The acoustic vibration assembly includes an ultrasonic vibration grid (14) and a second ultrasonic generating structure (12). The ultrasonic vibration grid (14) is vertically and vertically mounted in the recovery chamber (104) and is located below the inlet end of the oil outlet pipe (9). The ultrasonic transducer of the second ultrasonic generating structure (12) is mounted on the ultrasonic vibration grid (14) to excite the ultrasonic vibration grid (14) to resonate.

2. The industrial oil sludge separation device according to claim 1, characterized in that, The processing box (1) is equipped with a hydraulic telescopic rod (13) for driving the ultrasonic vibration grid (14) to rise and fall.

3. An industrial oil sludge separation device according to claim 2, characterized in that, The ultrasonic vibration grid (14) is provided with a guide slider (22), and the inner wall of the recovery chamber (104) is provided with a guide groove (21) adapted to the guide slider (22).

4. An industrial oil sludge separation device according to any one of claims 1-3, characterized in that, The inlet end of the oil outlet pipe (9) is threaded with a first regulating pipe (16), which extends along the vertical direction of the recovery chamber (104) and can adjust the insertion depth.

5. An industrial oil sludge separation device according to claim 4, characterized in that, It also includes a water outlet sleeve (17) with openings at both ends. One end of the water outlet sleeve (17) is connected to the bottom of the recovery chamber (104), and the other end extends to the top area of ​​the recovery chamber (104) and terminates therein. The bottom of the water outlet sleeve (17) is provided with a water inlet opening (18) that communicates with the recovery chamber (104). The inlet end of the outlet pipe (11) is connected to the inner cavity of the outlet sleeve (17), and the outlet end extends to the outer area of ​​the treatment box (1). The ultrasonic vibration grid (14) is provided with an avoidance opening (20) for the outlet sleeve (17) to pass through.

6. An industrial oil sludge separation device according to claim 5, characterized in that, The top of the water outlet sleeve (17) is threadedly connected to a second adjusting pipe (23), which is coaxially sleeved outside the water outlet sleeve (17) and can adjust the extension height.

7. An industrial oil sludge separation device according to claim 6, characterized in that, The processing box (1) above the recycling chamber (104) is provided with an inspection port, and the inspection port is detachably provided with a sealing cover (10).

8. An industrial oil sludge separation device according to claim 1, characterized in that, It also includes multiple separation baffles (15), which are arranged sequentially in the separation chamber (103) along the fluid flow direction and are alternately connected to the inner walls of opposite sides of the separation chamber (103) to form a flow channel.

9. An industrial oil sludge separation device according to claim 1, characterized in that, The outlet end of the water inlet pipe (2) is equipped with a water distributor (19) for uniformly dispersing the oil-water emulsion into the water inlet chamber (101).

10. An industrial oil sludge separation device according to claim 1, characterized in that, The nano-microbubble generating structure includes a first nano-microbubble generator (5) and a second nano-microbubble generator (6). The outlet of the first nano-microbubble generator (5) is connected to the water inlet chamber (101), and the outlet of the second nano-microbubble generator (6) is connected to the separation chamber (103).

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