Industrial waste oil recovery and treatment device

Abstract

This utility model discloses an industrial waste oil recycling and treatment device, relating to the field of waste oil recycling technology. The recycling and treatment device includes: a treatment tank, which is horizontally divided and connected to an inlet chamber, a demulsification chamber, a separation chamber, and a recovery chamber; an inlet assembly, including an inlet pipe and a water distributor, the water distributor being located at the outlet end of the inlet pipe; a nano-microbubble generating structure; an ultrasonic generating structure; multiple separation baffles, 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, forming a baffle channel, wherein any separation baffle is rotatably engaged with the corresponding side wall of the separation chamber and is driven by a motor; and a recovery structure, including an outlet pipe and an oil outlet pipe, the outlet pipe connecting to the bottom area of ​​the recovery chamber and the oil outlet pipe connecting to the top area of ​​the recovery chamber. This application combines nano-microbubbles and ultrasonic waves to achieve chemical-free demulsification, reducing secondary pollution and operating costs.

Description

Technical Field

[0001] This utility model relates to the field of waste oil recycling technology, and more specifically, to an industrial waste oil recycling and treatment 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] Currently, the separation of oil-water emulsions commonly employs chemical or electro-demulsification techniques. Chemical demulsification involves adding demulsifiers (such as surfactants or electrolytes) to the emulsion to disrupt the charge balance or interfacial film structure on the surface of oil droplets, causing them to coalesce and float, thus achieving separation. This method is characterized by its strong applicability, flexible operation, and significant demulsification effect, and can handle different types of emulsions, especially in small and medium-sized industrial settings. However, the continuous addition of demulsifiers significantly increases operating costs, and the introduced chemicals may form new pollutants, increasing the load on subsequent wastewater treatment, which does not meet the requirements of green and environmentally friendly sustainable development.

[0004] Electrodemulsification technology relies on the action of an electric field (such as electrostatic coalescence or pulsed electric field) to cause water droplets in the emulsion to collide and coalesce, accelerating oil-water phase separation, especially effective for microemulsions (oil droplet size less than 1 μm). Its advantages include no need for chemical reagents, high separation efficiency, and good environmental friendliness, making it suitable for scenarios with high water quality requirements or limited reagent use. However, this technology requires complex electrode devices and high-voltage power supply systems, resulting in high equipment investment and maintenance costs. Furthermore, it has poor adaptability to highly conductive emulsions (such as wastewater with high salinity), and the electric field energy is easily lost through ion conduction, leading to a decrease in separation efficiency.

[0005] Therefore, both chemical demulsification and electrodemulsification face bottlenecks in practical applications due to cost, energy consumption, or applicability, and breakthroughs in more efficient and low-consumption separation technologies are urgently needed. Utility Model Content

[0006] The purpose of this utility model is to provide an industrial waste oil recycling and treatment device, which aims to solve the technical problems in the background art mentioned above.

[0007] The embodiments of this utility model are implemented as follows:

[0008] This application provides an industrial waste oil recycling and treatment device, comprising: a treatment tank, the interior of which is horizontally divided into and connected to an inlet chamber, a demulsification chamber, a separation chamber, and a recovery chamber; an inlet assembly, including an inlet pipe and a water distributor, wherein the inlet end of the inlet pipe is used to receive an oil-water mixed emulsion, and the outlet end is connected to the inlet chamber; the water distributor is located at the outlet end of the inlet pipe and is used to uniformly disperse the oil-water mixed emulsion into the inlet chamber; and a nano-microbubble generating structure for conveying nano-microbubbles to the inlet chamber and / or the separation chamber. The system includes: a water-immersion chamber; an ultrasonic wave generating structure for transmitting ultrasonic waves into the demulsification chamber; multiple separation baffles arranged sequentially 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, wherein any of the separation baffles is rotatably engaged with the corresponding side wall of the separation chamber and is connected to a drive motor that drives its rotation; and a recovery structure including a water outlet pipe and an oil outlet pipe, wherein the water outlet pipe is used to connect to the bottom area of ​​the recovery chamber and the oil outlet pipe is used to connect to the top area of ​​the recovery chamber.

[0009] 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.

[0010] Furthermore, based on the aforementioned scheme, the fixed end of any of the aforementioned separation baffles is connected to the front or rear sidewall of the aforementioned separation chamber, and its free end extends to the opposing sidewalls and forms a flow guide gap.

[0011] Furthermore, based on the aforementioned scheme, any of the aforementioned separation baffles includes: a first plate body, rotatably disposed on the front or rear side wall of the separation chamber; a second plate body, disposed on the top of the first plate body, and in a lifting and lowering cooperation with the first plate body; and a hydraulic telescopic rod, which connects the first plate body and the second plate body, and is used to drive the lifting and lowering of the second plate body.

[0012] Furthermore, based on the aforementioned scheme, the first plate is connected to the front or rear side wall of the separation chamber via a pivot, and the pivot is provided with a first guide groove adapted to the lifting and lowering of the second plate; wherein, the first plate is provided with a second guide groove adapted to the lifting and lowering of the second plate.

[0013] Furthermore, based on the aforementioned scheme, a gap is provided between the bottom of any of the aforementioned separation baffles and the bottom surface of the aforementioned separation chamber.

[0014] 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 connects to the recovery chamber. The water inlet end of the water outlet pipe connects to the inner cavity of the water outlet sleeve, and the water outlet end extends through to the outer area of ​​the processing box.

[0015] Furthermore, based on the aforementioned scheme, the top of the water outlet sleeve is threadedly connected to a first adjusting pipe, which is coaxially sleeved outside the water outlet sleeve and can adjust the extension height.

[0016] Furthermore, based on the aforementioned scheme, the port of the oil outlet pipe connecting to the recovery chamber is threadedly connected to a second adjusting pipe, which extends vertically and can adjust the insertion depth.

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

[0018] The industrial waste oil recovery and treatment device provided in this application, in use, involves the oil-water emulsion entering the inlet chamber evenly through the inlet pipe and water distributor. A nano-microbubble generating structure then delivers nano-microbubble water into the inlet chamber, utilizing the surface properties of the nano-microbubbles to adsorb onto the oil droplet surface, weakening the stability of the oil droplet interface film. In the demulsification chamber, an ultrasonic generating structure emits ultrasonic waves, further disrupting the oil droplet interface film and charge balance through cavitation, promoting oil droplet aggregation. After entering the separation chamber, the mixture flows along the baffle channel formed by the separation baffles. Driven by a motor, the separation baffles rotate, changing the fluid flow direction, extending the residence time, and enhancing oil droplet collision and aggregation. Ultimately, the oil phase floats to the top of the recovery chamber, while the water phase settles to the bottom, and is recovered through the oil outlet pipe and water outlet pipe respectively. The advantages of this device are: combining nano-microbubbles and ultrasound to achieve chemical-free demulsification, reducing secondary pollution and operating costs; the rotatable design of the separation baffles enhances fluid turbulence, improving oil-water separation efficiency; and the compartmentalized treatment and baffle channel design achieve continuous and efficient separation, making it suitable for complex industrial waste oil treatment, combining environmental friendliness and economy. 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 An isometric view of an industrial waste oil recycling and treatment device according to an embodiment of this utility model. Figure 1 ;

[0021] Figure 2 An isometric view of an industrial waste oil recycling and treatment device according to an embodiment of this utility model. Figure 2 ;

[0022] Figure 3 This is a top view of an industrial waste oil recycling and treatment device according to an embodiment of the present invention;

[0023] Figure 4 for Figure 3 A cross-sectional view along the AA direction;

[0024] Figure 5 for Figure 4 A magnified view of part B in the image;

[0025] Figure 6 for Figure 4 A magnified view of part C;

[0026] Figure 7 This is a cross-sectional view of an industrial waste oil recycling and treatment device according to an embodiment of the present invention;

[0027] Figure 8 This is an isometric view of the separating folding plate according to an embodiment of the present invention.

[0028] 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-Drive motor, 5-Exhaust port, 6-Oil outlet pipe, 7-Adjusting cover plate, 8-Drainage port, 9-First nano-microbubble generator, 10-Ultrasonic generating structure, 11-Second nano-microbubble generator, 12-Water outlet pipe, 13-Water distributor, 14-Water outlet sleeve, 15-First adjusting pipe, 16-Second adjusting pipe, 17-Water inlet opening, 18-Separation baffle plate, 1801-First plate, 1802-Second plate, 19-Hydraulic telescopic rod, 20-Rotating shaft, 21-First guide groove, 22-Second guide groove. Detailed Implementation

[0029] The embodiments of this application will now be described in detail with reference to the accompanying drawings. Example

[0030] Please refer to Figures 1-8This application provides an industrial waste oil recycling and treatment device, comprising: a treatment tank 1, the interior of which is horizontally divided and connected to an inlet chamber 101, a demulsification chamber 102, a separation chamber 103, and a recovery chamber 104; an inlet assembly, including an inlet pipe 2 and a water distributor 13, wherein the inlet end of the inlet pipe 2 is used to receive an oil-water mixed emulsion, and the outlet end is connected to the inlet chamber 101; the water distributor 13 is located at the outlet end of the inlet pipe 2 and is used to uniformly disperse the oil-water mixed emulsion into the inlet chamber 101; and a nano-microbubble generating structure for conveying nano-microbubbles to the inlet chamber 101 and / or the separation chamber 103. The system includes: bubbled water; an ultrasonic generator 10 for sending ultrasonic waves to the demulsification chamber 102; multiple separation baffles 18 arranged sequentially in the separation chamber 103 along the fluid flow direction and alternately connected to the inner walls of opposite sides of the separation chamber 103 to form a flow channel, wherein any of the separation baffles 18 is rotatably engaged with the corresponding side wall of the separation chamber 103 and is connected to a drive motor 4 that drives its rotation; and a recovery structure including a water outlet pipe 12 and an oil outlet pipe 6, wherein the water outlet pipe 12 is used to connect to the bottom area of ​​the recovery chamber 104 and the oil outlet pipe 6 is used to connect to the top area of ​​the recovery chamber 104.

[0031] When the industrial waste oil recycling and treatment device provided in this application is in use, the oil-water mixed emulsion enters the inlet chamber 101 evenly through the inlet pipe 2 and the water distributor 13. The nano-microbubble generating structure delivers nano-microbubble water to the inlet chamber 101. The surface characteristics of the nano-microbubbles are used to adsorb onto the surface of the oil droplets, weakening the stability of the oil droplet interface film. The ultrasonic generating structure 10 in the demulsification chamber 102 sends ultrasonic waves, which further destroy the oil droplet interface film and charge balance through the cavitation effect, promoting the aggregation of oil droplets. After the mixed liquid enters the separation chamber 103, it flows along the baffle channel formed by the separation baffle 18. The separation baffle 18 rotates under the drive motor 4 to change the fluid flow direction, prolong the residence time and enhance the collision and aggregation of oil droplets. Finally, the oil phase floats to the top of the recovery chamber 104 and the water phase sinks to the bottom, and is recovered through the oil outlet pipe 6 and the water outlet pipe 12 respectively. The advantages of this device are: combining nano-microbubbles and ultrasound to achieve chemical-free demulsification, reducing secondary pollution and operating costs; the rotatable design of the separation baffle 18 enhances fluid disturbance and improves oil-water separation efficiency; the compartment processing and baffle channel design achieve continuous and efficient separation, making it suitable for the treatment of complex industrial waste oil, and combining environmental protection and economy.

[0032] Optionally, both the demulsification chamber 102 and the separation chamber 103 are connected to a drain port 8. A flange is installed at the outlet of the drain port 8, which can be connected to an external sealing plate. When not in use, the sealing plate achieves a seal; when it is necessary to drain the liquid inside the treatment tank 1, the liquid inside can be drained through the drain port 8.

[0033] The top of the processing box 1 is provided with an exhaust port 5 and multiple maintenance ports 3, wherein the exhaust port 5 is connected to the separation chamber 103.

[0034] In a preferred embodiment, the above-mentioned nano-microbubble generating structure includes a first nano-microbubble generator 9 and a second nano-microbubble generator 11. The outlet of the first nano-microbubble generator 9 is connected to the water inlet chamber 101, and the outlet of the second nano-microbubble generator 11 is connected to the separation chamber 103.

[0035] In the above embodiment, the structure of connecting the inlet chamber 101 and the separation chamber 103 with a first nano-microbubble generator 9 and a second nano-microbubble generator 11 respectively enables precise demulsification and separation in stages. In the inlet chamber 101 stage, the first nano-microbubble generator 9 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 nano-microbubbles injected by the second nano-microbubble generator 11 focus on air flotation separation, extending the contact time between bubbles and oil droplets and enhancing adsorption efficiency, thus promoting the rapid floating of the "bubble-oil droplet" complex. This dual-generator design with different regions and functions avoids functional conflicts between a single bubble source in the demulsification and separation stages, improving both demulsification efficiency and air 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.

[0036] In a preferred embodiment, the fixed end of any of the separation baffles 18 is connected to the front or rear sidewall of the separation chamber 103, and its free end extends to the opposite sidewall and forms a flow guide gap.

[0037] In the above embodiments, this design guides the fluid flow by forming a flow guide gap, extending the residence time to enhance the air flotation separation effect.

[0038] Optionally, the connection between the water inlet chamber 101 and the demulsification chamber 102 is located at the bottom of the processing tank 1, and the connection between the demulsification chamber and the separation chamber 103 is located at the top of the processing tank 1.

[0039] In a preferred embodiment, any of the aforementioned separation baffles 18 includes: a first plate 1801, rotatably disposed on the front or rear side wall of the separation chamber 103; a second plate 1802, disposed on top of the first plate 1801, and in a lifting and lowering cooperation with the first plate 1801; and a hydraulic telescopic rod 19, which connects the first plate 1801 and the second plate 1802, and is used to drive the lifting and lowering of the second plate 1802.

[0040] In the above embodiment, the second plate 1802 is disposed on top of the first plate 1801 and can rise and fall with it to form a layered flow guiding structure. The upper layer of oil has a lower density and can flow directly through the area above the second plate 1802 without entering the baffle channel to participate in the flow guiding. This avoids the oil from being re-emulsified due to repeated disturbances during the baffle process and ensures that the separated oil layer remains stable.

[0041] In a preferred embodiment, the first plate 1801 is connected to the front or rear side wall of the separation chamber 103 via a pivot 20, and the pivot 20 is provided with a first guide groove 21 adapted to the lifting and lowering of the second plate 1802; wherein, the first plate 1801 is provided with a second guide groove 22 adapted to the lifting and lowering of the second plate 1802.

[0042] In the above embodiment, the first plate 1801 is rotatable via the rotating shaft 20, providing a mechanical basis for adjusting the angle of the separating baffle 18, allowing the fluid to form a flexible and variable flow path within the separation chamber 103. The first guide groove 21 on the rotating shaft 20 and the second guide groove 22 on the first plate 1801 form a double-limiting guide structure, ensuring that the second plate 1802 maintains a vertical movement trajectory during lifting and lowering, avoiding sealing failure or flow field disturbance caused by tilting or offset. The combined design of the double grooves also enhances the overall stability of the separating baffle 18 structure. When the hydraulic telescopic rod 19 drives the first plate 1801 to lift and lower, the rigid constraint of the grooves reduces wear and shaking between components, extending the service life of the equipment.

[0043] In a preferred embodiment, the bottom of any of the separation baffles 18 is provided with a gap between it and the bottom surface of the separation chamber 103.

[0044] In the above embodiment, the flow guide gaps at the bottom of the multiple separation baffles 18 form a flow space. This flow space provides an independent flow channel for the separated water, allowing it to bypass the turbulent area between the separation baffles 18 and the tank wall, and be discharged directly and smoothly from the bottom, reducing the disturbance of turbulence to the air flotation separation layer and improving the separation efficiency.

[0045] In addition, during cleaning, the cleaning fluid can quickly flush away impurities deposited at the bottom of the tank 1 through this flow space, achieving efficient cleaning of the separation chamber 103 and reducing maintenance difficulty.

[0046] In a preferred embodiment, the system further includes a water outlet sleeve 14 with openings at both ends. One end of the water outlet sleeve 14 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 14 is provided with a water inlet opening 17 that communicates with the recovery chamber 104. The water inlet end of the water outlet pipe 12 communicates with the inner cavity of the water outlet sleeve 14, and the water outlet end extends through to the outer area of ​​the processing tank 1.

[0047] In the above embodiment, the water inlet 17 at the bottom of the outlet sleeve 14 ensures that only the separated bottom water enters the sleeve from the bottom of the recovery chamber 104, effectively preventing the upper floating oil and the unseparated mixture from entering; the design of the sleeve extending to the top area forces the water to flow slowly from the bottom opening and out through the outlet pipe 12, ensuring the reliability of the water quality.

[0048] In a preferred embodiment, the top of the water outlet sleeve 14 is threadedly connected to a first adjusting pipe 15, which is coaxially sleeved outside the water outlet sleeve 14 and can adjust the extension height.

[0049] In the above embodiments, the extension height of the first regulating pipe 15 can be flexibly adjusted through the threaded structure, thereby changing the actual height of the water outlet sleeve 14. When it is necessary to increase the water level in the separation chamber 103 to increase the oil layer thickness, the first regulating pipe 15 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.

[0050] In a preferred embodiment, the port of the oil outlet pipe 6 that connects to the recovery chamber 104 is threadedly connected to a second adjusting pipe 16, which extends vertically and can adjust the insertion depth.

[0051] In the above embodiment, the insertion depth of the second regulating pipe 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.

[0052] Optionally, the processing box 1 directly above the recycling chamber 104 is provided with an inspection opening, which is hinged to an adjustment cover 7, through which the first adjustment pipe 15 and the second adjustment pipe 16 can be adjusted.

[0053] 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.

[0054] 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 waste oil recovery and treatment apparatus, characterized by comprising: include: The processing tank (1) is divided into and connected in the horizontal direction by an inlet chamber (101), a demulsification chamber (102), a separation chamber (103), and a recovery chamber (104); The water inlet assembly includes a water inlet pipe (2) and a water distributor (13). The inlet end of the water inlet pipe (2) is used to connect to the oil-water mixed emulsion, and the outlet end is connected to the water inlet chamber (101). The water distributor (13) is located at the outlet end of the water inlet pipe (2) and is used to evenly disperse the oil-water mixed emulsion into the water inlet chamber (101). A nano-microbubble generating structure is used to deliver nano-microbubble water to the water inlet chamber (101) and / or the separation chamber (103); An ultrasonic wave generating structure (10) is used to send ultrasonic waves to the demulsification chamber (102); Multiple separation baffles (18) are sequentially arranged in the separation chamber (103) along the fluid flow direction and alternately connected to the inner walls of opposite sides of the separation chamber (103) to form a flow-bending channel. In this configuration, each of the separation baffles (18) is rotatably engaged with the side wall of the corresponding separation chamber (103) and is connected to a drive motor (4) that drives its rotation; and The recycling structure includes a water outlet pipe (12) and an oil outlet pipe (6), wherein the water outlet pipe (12) is used to connect the bottom area of ​​the recycling chamber (104) and the oil outlet pipe (6) is used to connect the top area of ​​the recycling chamber (104).

2. The industrial oil recovery processing device according to claim 1, wherein The nano-microbubble generating structure includes a first nano-microbubble generator (9) and a second nano-microbubble generator (11). The outlet of the first nano-microbubble generator (9) is connected to the water inlet chamber (101), and the outlet of the second nano-microbubble generator (11) is connected to the separation chamber (103).

3. The industrial oil recovery processing device according to claim 1, wherein The fixed end of any of the separation baffles (18) is connected to the front or rear sidewall of the separation chamber (103), and its free end extends to the opposite sidewall and forms a flow guide gap.

4. The industrial waste oil recycling and treatment device according to claim 3, characterized in that, Any of the separation baffles (18) includes: The first plate (1801) is rotatably disposed on the front or rear side wall of the separation chamber (103); The second plate (1802) is disposed on top of the first plate (1801) and is raised and lowered in coordination with the first plate (1801); A hydraulic telescopic rod (19) connects the first plate (1801) and the second plate (1802) and is used to drive the second plate (1802) to rise and fall.

5. The industrial waste oil recycling and treatment device according to claim 4, characterized in that, The first plate (1801) is connected to the front or rear side wall of the separation chamber (103) via a rotating shaft (20), and the rotating shaft (20) is provided with a first guide groove (21) adapted to the lifting and lowering of the second plate (1802); The first plate (1801) is provided with a second guide groove (22) adapted to the lifting and lowering of the second plate (1802).

6. The industrial waste oil recycling and treatment device according to claim 3, characterized in that, The bottom of any of the separation baffles (18) is provided with a gap between it and the bottom surface of the separation chamber (103).

7. The industrial waste oil recycling and treatment device according to claim 1, characterized in that, It also includes a water outlet sleeve (14) with openings at both ends, one end of which 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 thereon. The bottom of the water outlet sleeve (14) is provided with a water inlet opening (17) that connects to the recovery chamber (104), the water inlet end of the water outlet pipe (12) connects to the inner cavity of the water outlet sleeve (14), and the water outlet end extends to the outer area of ​​the treatment box (1).

8. The industrial waste oil recycling and treatment device according to claim 7, characterized in that, The top of the water outlet sleeve (14) is threadedly connected to a first adjusting pipe (15), which is coaxially sleeved outside the water outlet sleeve (14) and can adjust the extension height.

9. An industrial waste oil recycling and treatment device according to claim 8, characterized in that, The oil outlet pipe (6) is connected to the recovery chamber (104) by a threaded connection to a second regulating pipe (16), which extends vertically and can adjust the insertion depth.

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