Multifunctional oil removal and defoaming device and defoaming method based on organic wastewater treatment

Abstract

This invention discloses a multifunctional oil removal and defoaming device and method for treating organic wastewater. The invention relates to the field of oil removal and defoaming equipment technology. It includes a mounting bracket with an installation mechanism for oil removal and defoaming of organic wastewater. The installation mechanism, through the cooperation of an electric push rod, a connecting bracket, and a telescopic sleeve, allows for flexible adjustment of the height of the scraping plate and sealing plate according to the actual height of the wastewater in the defoaming tank. This ensures that the scraping operation closely follows the wastewater surface, avoiding incomplete scraping due to changes in wastewater height. It adapts to the treatment needs of organic wastewater with different volumes. The scraping plate rotates to scrape away foam from the wastewater surface, and its lower first piercing cone punctures large bubbles, achieving physical foam removal. Simultaneously, a spray pipe sprays defoaming reagent, achieving uniform reagent distribution through spray holes. The combination of physical scraping and chemical defoaming significantly improves defoaming efficiency and can thoroughly remove foam from wastewater.

Description

Technical Field

[0001] This invention relates to the field of oil removal and defoaming equipment technology, specifically to a multifunctional oil removal and defoaming device and defoaming method based on organic wastewater treatment. Background Technology

[0002] Organic wastewater is widely generated in industries such as petrochemicals, printing and dyeing, food processing, and pharmaceuticals. Its typical characteristics include a high content of oils and surfactants, which easily form a stable foam layer during wastewater treatment. This foam not only carries oil droplets to the surface, reducing the efficiency of subsequent oil-water separation, but also causes gas retention within treatment equipment, affecting the normal operation of biological treatment units and even posing environmental risks such as wastewater overflow. Therefore, efficient and reliable oil removal and defoaming technologies are crucial in organic wastewater treatment processes.

[0003] In the treatment of organic wastewater, common defoaming methods include physical defoaming and chemical defoaming. Physical defoaming mainly uses mechanical stirring, spraying, etc., to destroy the stability of foam and cause it to break down and dissipate. However, in the defoaming stage, traditional equipment often uses only physical scraping or chemical spraying. Physical scraping is difficult to adjust the height of the scraping component according to changes in wastewater volume, which can easily lead to incomplete scraping. At the same time, operating the two separately increases the number of treatment steps and reduces the overall treatment efficiency. In addition, the wastewater after defoaming may still contain unremoved foam. Existing equipment lacks an effective foam interception structure, and most existing oil removal equipment is static sedimentation equipment. The wastewater is in a relatively static state in the equipment, and oil-water separation mainly relies on gravity, which has a low separation efficiency. Especially for organic wastewater with high gas content, tiny bubbles will adhere to the oil droplets, hindering the oil droplets from floating and further reducing the oil-water separation effect. Therefore, this invention is based on a multifunctional oil removal and defoaming device and defoaming method for organic wastewater treatment. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a multifunctional oil removal and defoaming device and defoaming method for organic wastewater treatment. It solves the problems of traditional equipment using either physical scraping or chemical spraying for defoaming, physical scraping making it difficult to flexibly adjust the height of the scraping component according to changes in wastewater volume, which can easily lead to incomplete scraping. In addition, separating the two processes increases the number of treatment steps and reduces the overall treatment efficiency. Furthermore, the wastewater after defoaming may still contain unremoved foam, and existing equipment lacks an effective foam interception structure.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a multifunctional oil removal and defoaming device for organic wastewater treatment, comprising a mounting bracket, wherein the mounting bracket is provided with a mounting mechanism for oil removal and defoaming of organic wastewater, the mounting mechanism comprising: The defoaming component includes a defoaming barrel mounted on the upper end of a mounting bracket. The inner wall of the defoaming barrel has an opening groove, and a sealing plate is slidably connected inside the opening groove. A support plate connected to the upper end of the defoaming barrel via a lifting assembly is provided. A spray pipe connected to the support plate via a gear assembly is provided inside the support plate. A foam scraper is provided at the lower end of the spray pipe, and first foam-piercing cones are distributed at the lower end of the foam scraper. A filter plate is fixedly and inclined on the inner wall of the defoaming barrel, and a first scraper is provided on the surface of the filter plate. The degreasing assembly includes an degreasing tank mounted on a bracket and positioned on one side of the defoaming tank. The degreasing tank has a drive shaft inside and a stirring plate outside the drive shaft. A conical shell is fixed to the inner wall of the degreasing tank. A second scraper is provided on the inner wall of the conical shell. A second bubble-piercing cone is provided on the inner wall of the second scraper. A vertical tube is provided at the upper end of the conical shell, and a float ball is provided inside the vertical tube.

[0006] Preferably, the lifting assembly includes an electric push rod fixed to the rear side wall of the defoaming tank, a connecting bracket fixed to the upper end of the electric push rod, a support plate fixedly connected to the upper end of the connecting bracket, a foam drainage shell fixed to one end of the sealing plate, and a foam drainage shell fixed to one end of the connecting bracket, the foam scraping plate and the sealing plate being on the same horizontal line, a liquid inlet pipe provided on one side of the defoaming tank, a telescopic sleeve fixed to one side of the defoaming tank, and the upper end of the telescopic sleeve fixedly connected to the bottom of the foam drainage shell.

[0007] Preferably, the gear assembly includes a first motor mounted on the upper end of a support plate, a drive gear connected to the output end of the first motor, a connecting sleeve rotatably connected inside the support plate, a toothed block fixed to the outer wall of the connecting sleeve, the toothed block meshing with the drive gear, a first connecting rod evenly distributed at the lower end of the connecting sleeve, an annular tube fixed to the end of the first connecting rod, a spray pipe evenly distributed inside the annular tube, and spray holes evenly distributed at the lower end of the spray pipe, a hollow outer shell fixed to one end of the spray pipe, an outer connecting pipe connected to the upper end of the hollow outer shell, and the outer connecting pipe extending from the bottom of the connecting sleeve to the outside.

[0008] Preferably, a second connecting rod is fixed below one end of the spray pipe, and a connecting shell is fixed to one end of the second connecting rod. The bubble scrapers are evenly distributed on the outer wall of the connecting shell.

[0009] Preferably, the defoaming barrel has a fixed outer shell fixed inside by a support rod, and a bevel gear set is provided inside the fixed outer shell. A second motor for driving the bevel gear set is fixed to the outside of the defoaming barrel. A fixed plate is fixed to the inner wall of the defoaming barrel. A connecting shaft is rotatably connected inside the fixed plate. The upper end of the connecting shaft is connected to the bevel gear set, and a first scraper is fixedly connected to the lower end of the connecting shaft. A discharge port is provided on one side of the defoaming barrel in the inclined direction of the filter plate. An opening and closing plate connected by bolts is provided inside the discharge port.

[0010] Preferably, an infusion pipe connected to the bottom of the defoaming tank and the oil removal tank is provided through a pump body.

[0011] Preferably, a third motor is provided at the bottom of the oil removal tank, the drive shaft is connected to the output end of the third motor, a connecting ring is fixed to the outer wall of the drive shaft, and the stirring plates are evenly distributed at the upper end of the connecting ring.

[0012] Preferably, the second scraper is fixedly connected to the upper end of the drive shaft, and a drain pipe is provided on one side of the oil removal tank. A rectangular outer shell is provided inside the drain pipe, and a filter screen shell connected by bolts is provided inside the rectangular outer shell.

[0013] Preferably, a second rubber ring is provided at the bottom of the inner wall of the vertical tube, a first rubber ring is provided at the top of the inner wall of the vertical tube, a vertical rod is fixed at the upper end of the float, a horizontal plate is fixed at the inner wall of the top of the vertical tube, the vertical rod and the horizontal plate are slidably connected, a first oil outlet is provided on one side of the vertical tube, a second oil outlet is provided above the first oil outlet on one side of the vertical tube, and a micro pump is provided at the upper end of the second oil outlet.

[0014] This invention also provides a multifunctional oil removal and defoaming method based on organic wastewater treatment, comprising the following steps: Step 1: Send the organic wastewater into the defoaming tank through the inlet pipe, and start the electric push rod to adjust the height of the scraper plate and the sealing plate so that they fit the surface of the wastewater. Step 2: Start the first motor to drive the foam scraper to scrape the foam and the spray pipe to spray the reagent. After defoaming, the wastewater is filtered through the filter plate and the impurities are cleaned by the scraper. Step 3: After filtration, the wastewater is sent to the oil removal tank for stirring and oil separation. The oil is discharged through a vertical pipe, and the wastewater is discharged after filtration through a drain pipe. Waste materials are cleaned up regularly.

[0015] This invention provides a multifunctional oil removal and defoaming device and method for treating organic wastewater. Compared with existing technologies, it has the following advantages: Firstly, this invention, through the cooperation of an electric push rod, connecting bracket, and telescopic sleeve, allows for flexible adjustment of the height of the foam scraper and sealing plate according to the actual height of the wastewater in the defoaming tank. This ensures that the foam scraping operation adheres closely to the wastewater surface, avoiding incomplete foam scraping due to changes in wastewater height. It adapts to the treatment needs of organic wastewater with different volumes. The rotating foam scraper removes foam from the wastewater surface, while the first foam-piercing cone at its lower end punctures large bubbles, achieving physical foam removal. On the other hand, the spray pipe simultaneously sprays defoaming reagent, achieving uniform reagent distribution through spray holes. The combination of physical foam scraping and chemical defoaming significantly improves defoaming efficiency, thoroughly removing foam from the wastewater and preventing foam from carrying oil that could affect subsequent oil removal. By combining foam scraping and spray defoaming, defoaming is performed simultaneously with foam removal, reducing treatment steps and improving the efficiency of organic wastewater treatment.

[0016] Secondly, the filter plate of this invention can effectively block foam and prevent it from entering subsequent processing stages and affecting the processing effect. The first scraper automatically scrapes off the foam on the surface of the filter plate under the drive of the second motor, avoiding the trouble of manual cleaning, improving processing efficiency and automation. The filter plate further removes foam, and the inclined setting of the filter plate, together with the design of the discharge port and the opening and closing plate, allows the scraped impurities to automatically collect at the discharge port under gravity. Opening the opening and closing plate allows for quick discharge, making operation convenient and further reducing maintenance difficulty.

[0017] Thirdly, when the third motor of the present invention starts, the drive shaft connected to its output end rotates, and the stirring plate at the upper end of the connecting ring on the outer wall of the drive shaft rotates accordingly, causing the defoamed wastewater to rotate upward into the conical shell. The stirring plate and the conical shell combine to form a dynamic swirling field, which uses centrifugal force to enhance the separation effect of oil-water density difference. Compared with static sedimentation, it has a higher efficiency. The second bubble-piercing cone continuously pierces the bubbles during rotation, avoiding the adhesion of tiny bubbles to oil droplets and affecting the separation purity. It is especially suitable for organic wastewater with high gas content. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the defoaming tank and the oil removal tank of the present invention. Figure 3 This is a schematic diagram of the electric actuator connection structure of the present invention; Figure 4 This is a schematic diagram of the internal structure of the oil removal tank of the present invention; Figure 5 This is a schematic diagram of the internal structure of the vertical tube of the present invention; Figure 6 This is a schematic diagram of the internal structure of the defoaming bucket of the present invention; Figure 7 This is a schematic diagram of the opening groove structure of the present invention; Figure 8This is a schematic diagram of the first scraper connection structure of the present invention; Figure 9 This is a schematic diagram of the spray pipe structure of the present invention; Figure 10 This is a schematic diagram of the bubble scraper structure of the present invention.

[0019] In the diagram: 1. Mounting bracket; 2. Defoaming tank; 201. Liquid inlet pipe; 202. Electric push rod; 203. Connecting bracket; 204. Support plate; 205. First motor; 206. Drive gear; 207. Connecting sleeve; 208. Tooth block; 3. First connecting rod; 301. Annular pipe; 302. Spray pipe; 303. Spray hole; 304. Hollow outer shell; 305. Outer pipe; 4. Second connecting rod; 401. Connecting outer shell; 402. Bubble scraper; 403. First bubble-piercing cone; 5. Foam drainage outer shell; 501. Sealing plate; 502. Opening groove; 503. Telescopic sleeve; 6. Fixed outer shell; 601. Second motor; 602. Bevel gear set; 603. Fixing plate; 604. Connecting shaft; 605. First scraper; 606. Filter plate; 607. Discharge port; 7. Infusion pipe; 701. Oil removal tank; 702. Third motor; 703. Drive shaft; 704. Connecting ring; 705. Stirring plate; 706. Conical shell; 707. Second scraper; 708. Second bubble cone; 8. Drain pipe; 801. Rectangular shell; 802. Filter screen shell; 9. Vertical pipe; 901. Float; 902. Vertical rod; 903. Horizontal plate; 904. First rubber ring; 905. Second rubber ring; 906. First oil drain port; 907. Second oil drain port. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figures 1 to 10 This invention provides the following three technical solutions. First embodiment: A multifunctional oil removal and defoaming device for organic wastewater treatment, including a mounting bracket 1, on which a mounting mechanism for oil removal and defoaming of organic wastewater is provided, the mounting mechanism including: The defoaming component includes a defoaming tank 2 mounted on the upper end of a mounting bracket 1. The inner wall of the defoaming tank 2 has an opening groove 502. A sealing plate 501 is slidably connected inside the opening groove 502. A support plate 204 connected to the upper end of the defoaming tank 2 via a lifting assembly is provided. A spray pipe 302 connected to the support plate 204 via a gear assembly is provided inside the support plate 204. A bubble scraper 402 is provided at the lower end of the spray pipe 302. First bubble-piercing cones 403 are distributed at the lower end of the bubble scraper 402. A filter plate 606 is fixedly inclined on the inner wall of the defoaming tank 2. A first scraper 605 is provided on the surface of the filter plate 606. The degreasing assembly includes an degreasing tank 701 mounted on a mounting bracket 1 and located on one side of the defoaming tank 2. The degreasing tank 701 has a drive shaft 703 inside and a stirring plate 705 outside. A conical shell 706 is fixed to the inner wall of the degreasing tank 701. A second scraper 707 is provided on the inner wall of the conical shell 706. A second bubble-piercing cone 708 is provided on the inner wall of the second scraper 707. A vertical tube 9 is provided at the upper end of the conical shell 706. A float ball 901 is provided inside the vertical tube 9.

[0022] In this embodiment of the invention, the lifting assembly includes an electric push rod 202 fixed to the rear side wall of the defoaming tank 2, a connecting bracket 203 fixed to the upper end of the electric push rod 202, a support plate 204 fixedly connected to the upper end of the connecting bracket 203, a foam drainage shell 5 fixed to one end of the sealing plate 501, and a foam drainage shell 5 fixedly connected to one end of the connecting bracket 203, a foam scraping plate 402 and the sealing plate 501 being on the same horizontal line, an inlet pipe 201 provided on one side of the defoaming tank 2, a telescopic sleeve rod 503 fixed to one side of the defoaming tank 2, and an upper end of the telescopic sleeve rod 503 fixedly connected to the bottom of the foam drainage shell 5, wherein wastewater is sent into the interior of the defoaming tank 2 through the inlet pipe 201.

[0023] Specifically, the organic wastewater to be treated is first fed into the defoaming tank 2 through the liquid inlet pipe 201 to complete the initial feeding of wastewater and lay the foundation for subsequent oil removal and defoaming operations. The electric push rod 202 fixed to the rear wall of the defoaming tank 2 is activated. The electric push rod 202 drives the connecting bracket 203 fixed at the upper end to rise and fall, which in turn drives the support plate 204 fixed at the upper end of the connecting bracket 203 to rise and fall synchronously. At the same time, the foam drainage shell 5 fixed at one end of the connecting bracket 203 rises and falls accordingly. The sealing plate 501 fixed at one end of the foam drainage shell 5 slides inside the opening groove 502 opened in the inner wall of the defoaming tank 2 to achieve synchronous rise and fall. The telescopic sleeve rod 503 fixed on one side of the defoaming tank 2 extends and retracts synchronously with the foam drainage shell 5, which plays a role in auxiliary support and ensuring the stability of the rise and fall. During this process, the height of the foam scraping plate 402 connected below the support plate 204 is adjusted according to the actual height of the wastewater in the defoaming tank 2 to ensure that the foam scraping plate 402 and the sealing plate 501 are on the same horizontal line and in contact with the wastewater surface, in preparation for the foam scraping operation.

[0024] In this embodiment of the invention, the gear assembly includes a first motor 205 disposed on the upper end of a support plate 204, a drive gear 206 connected to the output end of the first motor 205, a connecting sleeve 207 rotatably connected inside the support plate 204, a toothed block 208 fixed to the outer wall of the connecting sleeve 207, the toothed block 208 meshing with the drive gear 206, a first connecting rod 3 evenly distributed at the lower end of the connecting sleeve 207, an annular tube 301 fixed to the end of the first connecting rod 3, and spray pipes 302 evenly distributed inside the annular tube 301. The lower end of the spray pipe 302 is evenly distributed with spray holes 303. One end of the spray pipe 302 is fixed with a cavity shell 304. The upper end of the cavity shell 304 is connected to an outer pipe 305. The outer pipe 305 extends from the bottom of the connecting sleeve 207 to the outside. The drive foam scraper 402 scrapes the foam on the surface of the wastewater and sends it into the foam diversion shell 5 at the opening slot 502. The lifting component controls the height of the foam scraper 402 inside the defoaming tank 2 and makes adaptive adjustments according to the height of the wastewater. At the same time, the sealing plate 501 and the foam diversion shell 5 rise and fall synchronously at the opening slot 502.

[0025] In this embodiment of the invention, a second connecting rod 4 is fixed below one end of the spray pipe 302, and a connecting shell 401 is fixed to one end of the second connecting rod 4. The foam scraping plate 402 is evenly distributed on the outer wall of the connecting shell 401. When scraping the foam on the surface of the wastewater, a reagent is simultaneously connected to the outer pipe 305. The spray pipe 302 and the spray holes 303 evenly distributed at the lower end ensure that defoaming is performed while scraping the foam.

[0026] Specifically, the first motor 205 installed on the upper end of the support plate 204 is activated. The output end of the first motor 205 drives the drive gear 206 to rotate. Since the drive gear 206 is meshed with the tooth block 208 fixed on the outer wall of the connecting sleeve 207, the connecting sleeve 207 is driven to rotate inside the support plate 204. The first connecting rod 3 evenly distributed at the lower end of the connecting sleeve 207 drives the annular tube 301 fixed at the end to rotate synchronously. The spray pipes 302 evenly distributed inside the annular tube 301 rotate together with the annular tube 301. At the same time, the outer pipe 305 connected to the upper end of the cavity shell 304 fixed at one end of the spray pipe 302 is connected to the defoaming reagent. The reagent enters the spray pipe 302 through the cavity shell 304 and is then sprayed onto the wastewater surface through the spray holes 303 evenly distributed at the lower end of the spray pipe 302. Furthermore, the second connecting rod 4 fixed at one end of the spray pipe 302 drives the connecting shell 401 fixed at one end to rotate. The foam scraping plates 402 evenly distributed on the outer wall of the connecting shell 401 rotate synchronously to scrape off the foam on the surface of the wastewater. The scraped foam is sent into the foam drainage shell 5 at the opening groove 502 to achieve the initial collection and removal of foam. In addition, the first bubble-piercing cone 403 distributed at the lower end of the foam scraping plate 402 can pierce larger foams. With the help of the sprayed defoaming agent, the defoaming efficiency is improved.

[0027] The second implementation differs from the first in that: a fixed outer shell 6 is fixed inside the defoaming tank 2 via a support rod; a bevel gear set 602 is installed inside the fixed outer shell 6; a second motor 601 for driving the bevel gear set 602 is fixed to the outside of the defoaming tank 2; a fixed plate 603 is fixed to the inner wall of the defoaming tank 2; a connecting shaft 604 is rotatably connected inside the fixed plate 603; the upper end of the connecting shaft 604 is connected to the bevel gear set 602; and a first scraper 605 is fixedly connected to the lower end of the connecting shaft 604. A discharge port 607 is provided on one side of the defoaming tank 2 in the inclined direction of the filter plate 606; an opening and closing plate connected by bolts is installed inside the discharge port 607. After the defoaming tank 2 scrapes off the foam from the wastewater, the filter plate 606 further filters and blocks the foam. After filtration on the surface of filter plate 606, the wastewater is fed into the oil removal tank 701. Then, the second motor 601 is started to drive the first scraper 605 to adhere to the surface of filter plate 606 and discharge it through discharge port 607. After the defoaming tank 2 performs preliminary treatment such as foam removal on the wastewater, the foam in the wastewater is blocked on the surface of filter plate 606. The second motor 601 is started, driving the bevel gear set 602 to rotate. The bevel gear set 602 drives the connecting shaft 604 to rotate inside the fixed plate 603. The first scraper 605 at the lower end of the connecting shaft 604 rotates accordingly and adheres to the surface of filter plate 606, scraping off the foam on the surface of filter plate 606. The opening and closing plate inside discharge port 607, which is connected by bolts, is opened to discharge the scraped foam through discharge port 607. The filtered wastewater is sent into the oil removal tank 701 for further treatment.

[0028] The third embodiment differs from the first and second embodiments in that: a delivery pipe 7 connected to the bottom of the defoaming tank 2 and the oil removal tank 701 via a pump body is provided; a third motor 702 is provided at the bottom of the oil removal tank 701; a drive shaft 703 is connected to the output end of the third motor 702; a connecting ring 704 is fixed to the outer wall of the drive shaft 703; and stirring plates 705 are evenly distributed at the upper end of the connecting ring 704; a second scraper 707 is fixedly connected to the upper end of the drive shaft 703; a drain pipe 8 is provided on one side of the oil removal tank 701; a rectangular shell 801 is provided inside the drain pipe 8; and a filter screen shell 802 connected by bolts is provided inside the rectangular shell 801; the defoamed wastewater is sent into the oil removal tank 701 through the delivery pipe 7 and the pump body; the stirring plate 705 rotates, causing the defoamed wastewater to rotate upwards into the conical shell 706; and the oil, being less dense, gathers at the narrow opening at the upper end of the conical shell 706.

[0029] In this embodiment of the invention, a second rubber ring 905 is provided at the bottom of the inner wall of the vertical pipe 9, a first rubber ring 904 is provided at the top of the inner wall of the vertical pipe 9, a vertical rod 902 is fixed at the upper end of the float 901, a horizontal plate 903 is fixed at the inner wall of the top of the vertical pipe 9, the vertical rod 902 and the horizontal plate 903 are slidably connected, a first oil outlet 906 is provided on one side of the vertical pipe 9, a second oil outlet 907 is provided above the first oil outlet 906 on one side of the vertical pipe 9, a micro pump is provided at the upper end of the second oil outlet 907, when oil enters the vertical pipe 9, it pushes the float 901, and the oil is discharged through the first oil outlet 906, the float 901 is continuously subjected to the upward force of the oil, and the second oil outlet 907 further discharges the oil through the micro pump, and wastewater can be discharged through the discharge pipe 8.

[0030] Specifically, the filtered wastewater enters the oil removal tank 701 located on the side of the defoaming tank 2 on the mounting bracket 1. The drive shaft 703 inside the oil removal tank 701 drives the stirring plate 705 on the outside to rotate, stirring the wastewater and making the oil in the wastewater fully separate from the water. Since the density of oil is less than that of water, the separated oil will float upward and enter the conical shell 706 fixed on the inner wall of the oil removal tank 701. The second scraper 707 provided on the inner wall of the conical shell 706 can scrape off the oil adhering to the inner wall of the conical shell. The second bubble-piercing cone 708 provided on the inner wall of the second scraper 707 can pierce the tiny foam mixed in the oil, further improving the oil removal effect. Furthermore, the separated oil enters the vertical pipe 9 located at the upper end of the conical outer shell 706. Inside the vertical pipe 9, the float 901 floats upwards under the pushing force of the oil. The oil is first discharged through the first drain port 906 located on one side of the vertical pipe 9. As oil continues to enter, the float 901 continues to rise. At this time, the micro pump located at the upper end of the second drain port 907 starts, further discharging the remaining oil and achieving complete oil removal. After the oil enters the vertical pipe 9, it pushes the float 901 to rise. The vertical rod 902 at the upper end of the float 901 slides in the horizontal plate 903, maintaining vertical movement.

[0031] The first rubber ring 904 and the second rubber ring 905 respectively limit the upper and lower limit positions of the float 901 to prevent excessive displacement.

[0032] The wastewater after oil removal is discharged through the drain pipe 8 set on one side of the oil removal tank 701, completing the entire oil removal and defoaming process. At the same time, the discharge port at the bottom of the oil removal tank 701 can be used to regularly clean the waste and impurities deposited at the bottom, ensuring the normal operation of the oil removal tank.

[0033] This invention also provides a multifunctional oil removal and defoaming method based on organic wastewater treatment, comprising the following steps: Step 1: Organic wastewater is fed into the defoaming tank 2 through the inlet pipe 201. The electric push rod 202 is activated to adjust the height of the foam scraper 402 and the sealing plate 501 so that they are in contact with the wastewater surface. Specifically, the electric push rod 202, which is fixed to the side wall of the defoaming tank 2, is activated. The electric push rod 202 drives the connecting bracket 203 fixed at the upper end to move up and down, which in turn drives the support plate 204 fixed at the upper end of the connecting bracket 203 to move up and down synchronously. At the same time, the foam drainage shell 5 fixed at one end of the connecting bracket 203 also moves up and down. The sealing plate 501, which is fixed at one end, slides inside the opening groove 502 opened in the inner wall of the defoaming tank 2 to achieve synchronous lifting and lowering. The telescopic sleeve 503, which is fixed on one side of the defoaming tank 2, extends and retracts synchronously with the foam drainage shell 5, playing a role in auxiliary support and ensuring the stability of lifting and lowering. During this process, the height of the foam scraping plate 402 connected below the support plate 204 is adjusted according to the actual height of the wastewater in the defoaming tank 2 to ensure that the foam scraping plate 402 and the sealing plate 501 are on the same horizontal line and in contact with the wastewater surface, in preparation for the foam scraping operation. Step 2: Start the first motor 205 to drive the foam scraper 402 to scrape bubbles and the spray pipe 302 to spray reagents. After defoaming, the wastewater is filtered by the filter plate 606, and impurities are cleaned by the scraper. Specifically, the second connecting rod 4 fixed at one end of the spray pipe 302 drives the connecting shell 401 fixed at one end to rotate. The foam scraper 402, which is evenly distributed on the outer wall of the connecting shell 401, rotates synchronously to scrape the foam on the surface of the wastewater. The scraped foam is sent into the foam drainage shell 5 at the opening groove 502 to achieve the initial collection and removal of foam. In addition, the first bubble-piercing cone 403 distributed at the lower end of the foam scraper 402 can pierce larger bubbles. With the sprayed defoaming reagent, the defoaming efficiency is improved. Step 3: After filtration, the wastewater is sent to the oil removal tank 701 for stirring and oil separation. The oil is discharged through the vertical pipe 9, and the wastewater is discharged after filtration through the drain pipe 8. Waste materials are cleaned regularly.

[0034] The aforementioned electric actuator is a DTW type electric actuator, with the first and second motors being Y2-90S-4, the third motor being Y2-100L-4, and the micro pump being a 12V micro gear pump.

[0035] Working principle: First, the electric push rod 202 fixed to the rear side wall of the defoaming tank 2 is started, which drives the connecting bracket 203, support plate 204, foam diversion shell 5 and sealing plate 501 to rise and fall synchronously. The telescopic sleeve rod 503 provides auxiliary support to ensure stability. The height of the foam scraping plate 402 is adjusted according to the wastewater height so that it is at the same level as the sealing plate 501 and in contact with the wastewater surface. The first motor 205 at the upper end of the support plate 204 is started, and its output end drives the drive gear 206 to rotate, which in turn drives the connecting sleeve 207 to rotate. The first connecting rod 3 drives the annular pipe 301 and spray pipe 302 to rotate. The outer pipe 305 is connected to the defoaming reagent and sprayed onto the wastewater surface through the spray hole 303. At the same time, the second connecting rod 4 drives the connecting shell 401 and the foam scraping plate 402 to rotate, scraping off the foam on the wastewater surface and sending it into the foam diversion shell 5. The first bubble piercing cone 403 pierces the larger foam, which, together with the defoaming reagent, improves the defoaming efficiency. Then, after the defoaming tank 2 scrapes off the foam from the wastewater, the filter plate 606 further filters and blocks the foam on the surface. The filtered wastewater is sent into the oil removal tank 701. The second motor 601 is started to drive the bevel gear set 602 to rotate, which in turn drives the connecting shaft 604 and the first scraper 605 to rotate, scraping off the foam from the surface of the filter plate 606. The inner opening and closing plate of the discharge port 607 is opened to discharge the foam. Finally, the defoamed wastewater is sent to the oil removal tank 701 through the infusion pipe 7 and the pump body. The third motor 702 is started to drive the drive shaft 703 and the stirring plate 705 to rotate, so that the wastewater rotates upward into the conical shell 706. The oil, due to its low density, floats upward and enters the conical shell 706. The second scraper 707 scrapes off the oil adhering to the inner wall of the conical shell, and the second bubble-piercing cone 708 pierces the tiny bubbles mixed in the oil. The separated oil enters the vertical pipe 9, pushing the float 901 to rise. The oil is first discharged through the first oil outlet 906. As the oil continues to enter, the float 901 continues to rise. The micro pump at the upper end of the second oil outlet 907 starts to further discharge the remaining oil. The first rubber ring 904 and the second rubber ring 905 limit the upper and lower limit positions of the float 901 to prevent excessive displacement.

[0036] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multifunctional oil removal and defoaming device based on organic wastewater treatment, comprising a mounting bracket (1), characterized in that: The mounting bracket (1) is equipped with a mounting mechanism for defoaming and oil removal of organic wastewater. The mounting mechanism includes: The defoaming component includes a defoaming tank (2) mounted on the upper end of a mounting bracket (1). The inner wall of the defoaming tank (2) has an opening groove (502). A sealing plate (501) is slidably connected inside the opening groove (502). A support plate (204) connected by a lifting assembly is mounted on the upper end of the defoaming tank (2). A spray pipe (302) connected by a gear assembly is mounted inside the support plate (204). A foam scraper (402) is mounted on the lower end of the spray pipe (302). A first foam-piercing cone (403) is distributed on the lower end of the foam scraper (402). A filter plate (606) is fixedly inclined on the inner wall of the defoaming tank (2). A first scraper (605) is mounted on the surface of the filter plate (606). The degreasing assembly includes an oil-removing tank (701) mounted on a mounting bracket (1) and located on one side of the defoaming tank (2). The oil-removing tank (701) has a drive shaft (703) inside and a stirring plate (705) on the outside of the drive shaft (703). A conical shell (706) is fixed to the inner wall of the oil-removing tank (701). A second scraper (707) is provided on the inner wall of the conical shell (706). A second bubble-piercing cone (708) is provided on the inner wall of the second scraper (707). A vertical tube (9) is provided at the upper end of the conical shell (706). A float ball (901) is provided inside the vertical tube (9).

2. The multifunctional oil removal and defoaming device based on organic wastewater treatment according to claim 1, characterized in that: The lifting assembly includes an electric push rod (202) fixed to the rear side wall of the defoaming tank (2), a connecting bracket (203) fixed to the upper end of the electric push rod (202), a support plate (204) fixedly connected to the upper end of the connecting bracket (203), a foam drainage shell (5) fixed to one end of the sealing plate (501), and a foam drainage shell (5) fixed to one end of the connecting bracket (203), a foam scraping plate (402) and a sealing plate (501) on the same horizontal line, an inlet pipe (201) provided on one side of the defoaming tank (2), a telescopic sleeve rod (503) fixed to one side of the defoaming tank (2), and the upper end of the telescopic sleeve rod (503) fixedly connected to the bottom of the foam drainage shell (5).

3. The multifunctional oil removal and defoaming device based on organic wastewater treatment according to claim 1, characterized in that: The gear assembly includes a first motor (205) mounted on the upper end of a support plate (204), a drive gear (206) connected to the output end of the first motor (205), a connecting sleeve (207) rotatably connected inside the support plate (204), a toothed block (208) fixed to the outer wall of the connecting sleeve (207), the toothed block (208) meshing with the drive gear (206), a first connecting rod (3) evenly distributed at the lower end of the connecting sleeve (207), an annular tube (301) fixed to the end of the first connecting rod (3), a spray pipe (302) evenly distributed inside the annular tube (301), and spray holes (303) evenly distributed at the lower end of the spray pipe (302), a cavity shell (304) fixed to one end of the spray pipe (302), an outer pipe (305) connected to the upper end of the cavity shell (304), and the outer pipe (305) extending from the bottom of the connecting sleeve (207) to the outside.

4. The multifunctional oil removal and defoaming device based on organic wastewater treatment according to claim 1, characterized in that: A second connecting rod (4) is fixed below one end of the spray pipe (302), and a connecting shell (401) is fixed to one end of the second connecting rod (4). The bubble scraper (402) is evenly distributed on the outer wall of the connecting shell (401).

5. The multifunctional oil removal and defoaming device based on organic wastewater treatment according to claim 1, characterized in that: The defoaming tank (2) is fixed with a fixed outer shell (6) by a support rod. A bevel gear set (602) is provided inside the fixed outer shell (6). A second motor (601) for driving the bevel gear set (602) is fixed on the outside of the defoaming tank (2). A fixed plate (603) is fixed on the inner wall of the defoaming tank (2). A connecting shaft (604) is rotatably connected inside the fixed plate (603). The upper end of the connecting shaft (604) is connected to the bevel gear set (602), and the first scraper (605) is fixedly connected to the lower end of the connecting shaft (604). A discharge port (607) is provided on one side of the defoaming tank (2) in the inclined direction of the filter plate (606). An opening and closing plate connected by bolts is provided inside the discharge port (607).

6. The multifunctional oil removal and defoaming device based on organic wastewater treatment according to claim 1, characterized in that: A delivery pipe (7) connected to the pump body is provided between the bottom of the defoaming tank (2) and the oil removal tank (701).

7. The multifunctional oil removal and defoaming device based on organic wastewater treatment according to claim 1, characterized in that: The bottom of the oil removal tank (701) is provided with a third motor (702), the drive shaft (703) is connected to the output end of the third motor (702), the outer wall of the drive shaft (703) is fixed with a connecting ring (704), and the stirring plates (705) are evenly distributed at the upper end of the connecting ring (704).

8. The multifunctional oil removal and defoaming device based on organic wastewater treatment according to claim 1, characterized in that: The second scraper (707) is fixedly connected to the upper end of the drive shaft (703). A drain pipe (8) is provided on one side of the oil removal tank (701). A rectangular shell (801) is provided inside the drain pipe (8). A filter screen shell (802) is provided inside the rectangular shell (801) by bolts.

9. The multifunctional oil removal and defoaming device based on organic wastewater treatment according to claim 1, characterized in that: A second rubber ring (905) is provided at the bottom of the inner wall of the vertical tube (9), a first rubber ring (904) is provided at the top of the inner wall of the vertical tube (9), a vertical rod (902) is fixed at the upper end of the float (901), a horizontal plate (903) is fixed at the inner wall of the top of the vertical tube (9), the vertical rod (902) and the horizontal plate (903) are slidably connected, a first oil outlet (906) is provided on one side of the vertical tube (9), a second oil outlet (907) is provided above the first oil outlet (906) on one side of the vertical tube (9), and a micro pump is provided at the upper end of the second oil outlet (907).

10. A multifunctional oil removal and defoaming method based on organic wastewater treatment, applicable to the multifunctional oil removal and defoaming device based on organic wastewater treatment as described in any one of claims 1-9, characterized in that, Includes the following steps: Step 1: Send organic wastewater into defoaming tank (2) through inlet pipe (201), start electric push rod (202) to adjust the height of scraper plate (402) and sealing plate (501) so that they fit the surface of wastewater; Step 2: Start the first motor (205) to drive the foam scraper (402) to scrape bubbles and spray the reagent through the spray pipe (302). After defoaming, the wastewater is filtered through the filter plate (606) and the impurities are cleaned by the scraper. Step 3: After filtration, the wastewater is sent to the oil removal tank (701) for stirring and oil separation. The oil is discharged through the vertical pipe (9), and the wastewater is discharged after filtration through the drain pipe (8). Waste materials are cleaned regularly.

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