Air flotation separation device for high-temperature demulsification wastewater

Abstract

The utility model relates to the technical field of wastewater treatment, in particular to an air flotation separation device for high-temperature demulsification wastewater, which comprises a wastewater high-temperature demulsification structure, a drainage structure, a microbubble air flotation structure, a floating object scraping structure and a scraping storage structure, the microbubble air flotation structure is arranged on the side face of one end of the wastewater high-temperature demulsification structure, the floating object scraping structure is arranged on the edge of the upper surface of the wastewater high-temperature demulsification structure, and the scraping storage structure is arranged on the side, away from the microbubble air flotation structure, of the wastewater high-temperature demulsification structure. According to the utility model, the micro-bubble air flotation structure and the floating object scraping structure are matched with each other, so that a large amount of suspended micro floccules mingled in a water body passively have larger buoyancy, the suspended micro floccules float on the surface layer of the water body, and the floccules in the water body subjected to high-temperature demulsification are more thoroughly scraped.

Description

Technical Field

[0001] This utility model relates to a wastewater treatment device, and more particularly to an air flotation separation device for high-temperature demulsified wastewater. Background Technology

[0002] Oily wastewater, especially oily emulsion wastewater, is one of the most difficult types of wastewater to treat. The presence of surfactants causes a strong bond between oil and water, making conventional filtration methods ineffective. While flocculation can treat some oily emulsion wastewater, it has limited application range and requires a long time for floc formation and sedimentation, resulting in low efficiency. High-temperature demulsification is a method that disrupts the stability of emulsions by increasing temperature. High temperatures reduce the viscosity of the oil-water interface film, intensify molecular motion, and cause the interface film to rupture, achieving oil-water separation. High-temperature demulsification is a highly efficient wastewater treatment method for oily emulsion wastewater, characterized by its wide applicability and high efficiency.

[0003] In the process of treating oily emulsion wastewater using high-temperature demulsification, although large flocs float on the surface of the water after high-temperature demulsification, a large number of suspended micro-flocs are still mixed in the water. Because the micro-flocs have low buoyancy or good suspension, they are difficult to float to the surface of the water in time, and the flocs in the water after high-temperature demulsification cannot be effectively and thoroughly removed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides an air flotation separation device for high-temperature demulsified wastewater that can rapidly remove demulsified flocculent material.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0006] An air flotation separation device for high-temperature demulsification wastewater includes:

[0007] A high-temperature demulsification structure for wastewater is installed on a supporting base plate. The high-temperature demulsification structure for wastewater is used to demulsify wastewater at high temperature and discharge it through a drainage structure.

[0008] A microbubble flotation structure is provided at one end of the high-temperature demulsification structure for wastewater. The bubbles generated by the microbubble flotation structure cause the tiny flocculents produced by the high-temperature demulsification structure to float on the surface of the solution.

[0009] A floating debris removal structure is provided at the edge of the upper surface of the high-temperature demulsification structure for wastewater and is used to quickly remove floating flocculent matter.

[0010] The wastewater high-temperature demulsification structure is provided with a scraping and storage structure on the side away from the microbubble flotation structure. The scraping and storage structure is used to temporarily store the flocculent material scraped off by the floating matter scraping structure.

[0011] Furthermore, the wastewater high-temperature demulsification structure includes a protective shell disposed on the supporting base plate, a high-temperature reaction chamber disposed in the protective shell, and a plurality of electric heating blocks disposed between the protective shell and the high-temperature reaction chamber.

[0012] Furthermore, the microbubble flotation structure includes an air compression assembly, a storage tank disposed at one end of the protective housing, a first unidirectional flow guide tube disposed between the air compression assembly and the storage tank, a ceramic bubble generating plate disposed at the bottom of the high-temperature reaction chamber, and a second unidirectional flow guide tube disposed between the storage tank and the ceramic bubble generating plate.

[0013] Furthermore, the floating matter scraping structure includes slide rails symmetrically installed at the edge of the high-temperature reaction chamber, drive moving seats movably sleeved on the slide rails, a connecting plate disposed between the two drive moving seats, and a flocculent scraper mounted on the connecting plate.

[0014] Furthermore, the scraping storage structure includes a storage cavity disposed on the protective housing, a flocculent material storage box installed in the storage cavity, and a retrieval lever disposed on the flocculent material storage box. The flocculent material storage box is symmetrically provided with T-shaped limiting sliders, and the inner wall of the storage cavity is provided with a T-shaped limiting groove adapted to the T-shaped limiting sliders.

[0015] Furthermore, the drainage structure includes a Y-shaped pipe connected to the high-temperature reaction chamber, a first electrically controlled switch at both ends of the Y-shaped pipe, and a second electrically controlled switch at the tail end of the Y-shaped pipe.

[0016] Furthermore, the air compression assembly includes a connecting seat, a compression chamber disposed on the connecting seat, a first compression and air delivery gear rotatably mounted in the compression chamber, a second compression and air delivery gear meshing and rotatably connected to the side of the first compression and air delivery gear, a first drive motor disposed on the first compression and air delivery gear, a second drive motor disposed on the second compression and air delivery gear, an air inlet opened on the outer side of the compression chamber, and an air outlet opened on the inner side of the compression chamber.

[0017] Furthermore, a first one-way flow guide tube is connected to the air outlet, and a filter cover is installed on the air inlet. The first one-way flow guide tube includes a first conduit, a first one-way valve disposed on the first conduit, and a third electrically controlled switch disposed on the first conduit. The second one-way flow guide tube includes a second conduit, a second one-way valve disposed on the second conduit, and a fourth electrically controlled switch disposed on the second conduit.

[0018] The beneficial effects of this utility model are as follows:

[0019] Compared with existing technologies, this application can use a microbubble flotation structure in conjunction with a floating matter scraping structure to passively give a large number of suspended micro-flocs in the water a greater buoyancy, so that the suspended micro-flocs float on the surface of the water, thereby more thoroughly scraping away the flocs in the water after high-temperature demulsification. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the microbubble flotation structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the air compression assembly of this utility model;

[0023] Figure 4 This is a schematic diagram of the floating object scraping structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the flocculent material storage box of this utility model;

[0025] Figure 6 This is a schematic diagram of the drainage structure of this utility model;

[0026] Figure 7 This is a schematic diagram of the overall internal structure of this utility model;

[0027] Figure 8 This is a schematic diagram of the overall bottom structure of this utility model.

[0028] In the diagram: 1. Supporting base plate; 2. High-temperature demulsification structure for wastewater; 3. Microbubble flotation structure; 4. Floating matter scraping structure; 5. Scraping and storage structure; 6. Drainage structure; 7. Protective shell; 8. High-temperature reaction chamber; 9. Electric heating block; 10. Air compression assembly; 11. Storage tank; 12. First unidirectional flow guide pipe; 13. Ceramic bubble generating plate; 14. Second unidirectional flow guide pipe; 15. Slide rail; 16. Drive moving base; 17. Connecting plate; 18. Flocculent scraper; 19. Storage chamber; 20. Flocculent storage drawer; 21. 21. Pull rod; 22. T-shaped limit slider; 23. T-shaped limit groove; 24. Y-shaped pipe; 25. First electric control switch; 26. Second electric control switch; 27. Connecting seat; 28. Compression chamber; 29. ​​First compression air supply gear; 30. Second compression air supply gear; 31. First drive motor; 32. Air inlet; 33. Air outlet; 34. Filter cover; 35. First conduit; 36. First one-way valve; 37. Second conduit; 38. Second one-way valve; 39. Fourth electric control switch; 40. Second drive motor; 41. Third electric control switch. Detailed Implementation

[0029] The technical solution of this utility model will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0030] like Figures 1-8 As shown, the air flotation separation device for high-temperature demulsified wastewater provided in this embodiment includes:

[0031] The wastewater high-temperature demulsification structure 2 is installed on the supporting base plate 1. The wastewater high-temperature demulsification structure 2 is used to perform high-temperature demulsification and separation of wastewater and discharge it through the drainage structure 6. The supporting base plate 1 is used to fix and support the wastewater high-temperature demulsification structure 2. The wastewater high-temperature demulsification structure 2 is used to perform high-temperature demulsification treatment on the wastewater to be treated. The drainage structure 6 is used to discharge the water after a series of treatments from the wastewater high-temperature demulsification structure 2.

[0032] The microbubble flotation structure 3 is set on one side of the high-temperature demulsification structure 2. The bubbles generated by the microbubble flotation structure 3 cause the tiny flocs generated after the high-temperature demulsification separation of the wastewater high-temperature demulsification structure 2 to float on the surface of the solution. The microbubble flotation structure 3 is used to generate a large number of microbubbles. The microbubbles are adsorbed on the tiny flocs suspended in the water, which passively increases the buoyancy of the suspended tiny flocs, thereby causing the suspended tiny flocs to float on the surface of the water.

[0033] The floating matter scraping structure 4 is set at the edge of the upper surface of the wastewater high temperature demulsification structure 2 and is used to quickly scrape off the floating flocculent matter. The floating matter scraping structure 4 is used to quickly scrape off the flocculent matter floating on the water surface after high temperature demulsification treatment and microbubble flotation treatment, so as to quickly separate the treated water from the flocculent matter.

[0034] A scraping and storage structure 5 is provided on the side of the wastewater high-temperature demulsification structure 2 away from the microbubble flotation structure 3. The scraping and storage structure 5 is used to temporarily store the flocculent material scraped by the floating material scraping structure 4.

[0035] Furthermore, such as Figure 7 and Figure 8 As shown, the wastewater high-temperature demulsification structure 2 includes a protective shell 7 mounted on a supporting base plate 1, a high-temperature reaction chamber 8 embedded in the protective shell 7, and several electric heating blocks 9 disposed between the protective shell 7 and the high-temperature reaction chamber 8. The protective shell 7 is used to protect and support the high-temperature reaction chamber 8 and the several electric heating blocks 9. The high-temperature reaction chamber 8 is used to store wastewater before and after the reaction. The several electric heating blocks 9 are used to rapidly heat the high-temperature reaction chamber 8, thereby realizing high-temperature demulsification of the wastewater high-temperature demulsification structure 2.

[0036] Furthermore, such as Figure 2 , Figure 7 and Figure 8 As shown, the microbubble flotation structure 3 includes an air compression assembly 10, a storage tank 11 disposed on the protective shell 7, a first unidirectional guide pipe 12 disposed between the air compression assembly 10 and the storage tank 11, a ceramic bubble generating plate 13 disposed at the bottom of the high-temperature reaction chamber 8, and a second unidirectional guide pipe 14 disposed between the storage tank 11 and the ceramic bubble generating plate 13. The air compression assembly 10 is used to quickly draw in air from the outside and compress and transport the drawn-in air to the storage tank 11. The storage tank 11 is used to store the compressed gas transported by the air compression assembly 10. The first unidirectional guide pipe 12 enables the air compression assembly 10 to smoothly transport the compressed gas unidirectionally to the storage tank 11. The ceramic bubble generating plate 13 enables the compressed gas transported from the storage tank 11 to be uniformly miniaturized and distributed at the bottom of the high-temperature reaction chamber 8. The second unidirectional guide pipe 14 enables the compressed gas in the storage tank 11 to be smoothly transported unidirectionally to the ceramic bubble generating plate 13.

[0037] Furthermore, such as Figure 4 , Figure 7 and Figure 8As shown, the floating debris removal structure 4 includes slide rails 15 symmetrically installed at the edge of the high-temperature reaction chamber 8, drive moving seats 16 movably sleeved on the slide rails 15, a connecting plate 17 disposed between the two drive moving seats 16, and a flocculent scraper 18 installed on the connecting plate 17. The two slide rails 15 and the two drive moving seats 16 cooperate with each other so that the flocculent scraper 18 can move back and forth on the high-temperature reaction chamber 8, thereby realizing the removal of flocculent material on the surface of the water by the floating debris removal structure 4. The connecting plate 17 is used to connect the two drive moving seats 16 together so that the two drive moving seats 16 can move synchronously, and at the same time facilitates the fixed support of the flocculent scraper 18. The flocculent scraper 18 is used to clean and remove the flocculent material floating on the surface of the water.

[0038] Furthermore, such as Figure 5 , Figure 7 and Figure 8 As shown, the scraping and storage structure 5 includes a storage cavity 19 on the protective shell 7, a flocculent material storage box 20 embedded in the storage cavity 19, and a retrieval lever 21 on the flocculent material storage box 20. T-shaped limiting sliders 22 are symmetrically arranged on the flocculent material storage box 20. A T-shaped limiting groove 23, adapted to the T-shaped limiting slider 22, is opened on the inner wall of the storage cavity 19. The storage cavity 19 is used to store the flocculent material storage box 20, which is used to temporarily store the scraped flocculent material. The retrieval lever 21 is used to remove the flocculent material storage box 20 from the storage cavity 19. The T-shaped limiting slider 22 and the T-shaped limiting groove 23 cooperate to fix and limit the flocculent material storage box 20, preventing it from shaking.

[0039] Furthermore, such as Figure 6 and Figure 7 As shown, the drainage structure 6 includes a Y-shaped pipe 24 connected to the high-temperature reaction chamber 8, a first electric control switch 25 at both ends of the Y-shaped pipe 24, and a second electric control switch 26 at the tail end of the Y-shaped pipe 24. The Y-shaped pipe 24 is used to quickly discharge the water after the reaction. The first electric control switch 25 is used to prevent unreacted water from flowing into the Y-shaped pipe 24 during the reaction. The second electric control switch 26 is used to control the opening and closing of the Y-shaped pipe 24 or the speed of the outflow of the water after the reaction.

[0040] Furthermore, such as Figure 3 , Figure 7 and Figure 8As shown, the air compression assembly 10 includes a connecting seat 27, a compression chamber 28 disposed on the connecting seat 27, a first compression and air delivery gear 29 rotatably mounted in the compression chamber 28, a second compression and air delivery gear 30 meshing and rotating beside the first compression and air delivery gear 29, a first drive motor 31 disposed on the first compression and air delivery gear 29, a second drive motor 40 disposed on the second compression and air delivery gear 30, an air inlet 32 ​​opened on the outer side of the compression chamber 28, and an air outlet 33 opened on the inner side of the compression chamber 28. The connecting seat 27 is used to connect the air compression assembly 10 to the protective housing 7. At the same time, the connecting seat 27 is used to fix and support the compression chamber 28, the first drive motor 31, and the second drive motor 40. The compression chamber 28 is used to support the rotation of the first compression air delivery gear 29 and the second compression air delivery gear 30, and to provide a working space for compressed air. The first compression air delivery gear 29 and the second compression air delivery gear 30 cooperate to quickly draw outside air into the compression chamber 28 and compress the drawn air quickly. The first drive motor 31 is used to provide driving force for the rotation of the first compression air delivery gear 29, and the second drive motor 40 is used to provide driving force for the rotation of the second compression air delivery gear 30. The air inlet 32 ​​is used to draw outside air into the compression chamber 28, and the air outlet 33 is used to discharge the compressed air in the compression chamber 28.

[0041] Furthermore, such as Figure 2 , Figure 3 , Figure 7 and Figure 8 As shown, a first one-way guide pipe 12 is connected to the air outlet 33, and a filter cover 34 is installed on the air inlet 32. The first one-way guide pipe 12 includes a first conduit 35, a first one-way valve 36 disposed on the first conduit 35, and a third electric control switch 41 disposed on the first conduit 35. The second one-way guide pipe 14 includes a second conduit 37, a second one-way valve 38 disposed on the second conduit 37, and a fourth electric control switch 39 disposed on the second conduit 37. The filter cover 34 prevents foreign objects from entering the compression chamber 28, and the first conduit 35 ensures that the air is clean and dry. The gas compression assembly 10 draws in compressed gas and enters the storage tank 11. The first one-way valve 36 is used to realize the one-way nature of the first one-way guide tube 12 to prevent backflow. The third electric control switch 41 is used to control the opening and closing of the first conduit 35 or the flow rate. The second conduit 37 is used to ensure that the compressed gas in the storage tank 11 can smoothly enter the ceramic bubble generating plate 13. The second one-way valve 38 is used to realize the one-way nature of the second conduit 37 to prevent backflow. The fourth electric control switch 39 is used to control the opening and closing of the second conduit 37 or the flow rate.

[0042] like Figures 1-8As shown, the principle of the air flotation separation device for high-temperature demulsified wastewater provided in this embodiment is as follows: When the device is in use, the wastewater to be treated is first discharged into the high-temperature reaction chamber 8. Several electric heating blocks 9 rapidly heat the wastewater in the high-temperature reaction chamber 8. During treatment, specific reaction reagents can be selectively added according to the types of pollutants in the wastewater. Subsequently, under the action of high temperature and reaction reagents, the impurities in the water condense into flocculent matter.

[0043] Larger flocculent materials will float autonomously on the surface of the water. The first drive motor 31 drives the first compression and air delivery gear 29 to rotate, and the second drive motor 40 drives the second compression and air delivery gear 30 to rotate. The first compression and air delivery gear 29 and the second compression and air delivery gear 30 mesh and rotate. During the meshing and rotation, the first compression and air delivery gear 29 and the second compression and air delivery gear 30 quickly draw in outside air into the compression chamber 28 and compress and deliver the drawn-in air. The third electronic control switch 41 is turned on and the compressed air enters the storage tank 11 in one direction through the first conduit 35.

[0044] Compressed gas in storage tank 11 enters ceramic bubble generating plate 13 unidirectionally through second conduit 37. Fourth electronic control switch 39 controls the compressed gas entering ceramic bubble generating plate 13 to form microbubbles. Microbubbles rise from the bottom of high temperature reaction chamber 8 to the surface of water. During the rising process of microbubbles, they will be adsorbed onto the suspended micro-flocculents in the water, so that the micro-flocculents in the water float on the surface of the water along with the rising of microbubbles.

[0045] Two drive moving seats 16 drive the floc scraper 18 to move along the two slide rails 15 toward the floc storage box 20. The floc scraper 18 pushes the floc floating on the water into the floc storage box 20. Then the two drive moving seats 16 drive the floc scraper 18 back to the initial position. The operation is repeated when floc reappears on the surface of the water.

[0046] Once the treated water reaches the specified standard, the electric heating block 9 can be stopped, the fourth electric control switch 39 can be turned off, and then the two first electric control switches 25 and the second electric control switch 26 can be turned on to release the treated water in the high-temperature reaction chamber 8. After that, the flocculent storage box 20 is taken out from the storage chamber 19, and the flocculent in the flocculent storage box 20 is taken out. During this process, the third electric control switch 41 can remain on, and the first drive motor 31 and the second drive motor 40 do not need to stop operating, because the compressed gas generated by the air compression assembly 10 can be stored in the storage tank 11 for subsequent wastewater treatment.

[0047] Place the flocculent material storage box 20 into the storage chamber 19, and turn off the two first and second electrical control switches 25 and 26. Inject new wastewater to be treated into the high-temperature reaction chamber 8 to start a new round of operation.

[0048] The foregoing description illustrates and describes preferred embodiments of the present invention. It should be understood that the present invention is not limited to the forms disclosed herein. Any modifications and variations made by those skilled in the art without departing from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A gas floatation separation device for high temperature demulsified wastewater, characterized in that, The utility model relates to a high temperature demulsification structure of waste water, microbubble air floatation structure, floating matter scraping structure and drainage structure. The utility model relates to a high temperature demulsification structure of waste water, microbubble air floatation structure, floating matter scraping structure and drainage structure. The utility model relates to a high temperature demulsification structure of waste water, microbubble air floatation structure, floating matter scraping structure and drainage structure. The utility model relates to a high temperature demulsification structure of waste water, microbubble air floatation structure, floating matter scraping structure and drainage structure. The utility model relates to a high temperature demulsification structure of waste water, microbubble air floatation structure, floating matter scraping structure and drainage structure.

2. The high temperature de-emulsified wastewater gas floatation separation device according to claim 1, characterized in that: The utility model relates to a high temperature demulsification structure of waste water, microbubble air floatation structure, floating matter scraping structure and drainage structure.

3. The high temperature de-emulsified wastewater gas floatation separation device according to claim 2, characterized in that: The utility model relates to a high temperature demulsification structure of waste water, microbubble air floatation structure, floating matter scraping structure and drainage structure.

4. The high temperature de-emulsified wastewater gas floatation separation device according to claim 2, characterized in that: The utility model relates to a high temperature demulsification structure of waste water, microbubble air floatation structure, floating matter scraping structure and drainage structure.

5. The high temperature de-emulsified wastewater gas floatation separation device according to claim 2, characterized in that: The utility model relates to a high temperature demulsification structure of waste water, microbubble air floatation structure, floating matter scraping structure and drainage structure.

6. The high temperature de-emulsified wastewater gas floatation separation device according to claim 2, characterized in that: The utility model relates to a high temperature demulsification structure of waste water, microbubble air floatation structure, floating matter scraping structure and drainage structure. The utility model relates to a high temperature demulsification structure of waste water, microbubble air floatation structure, floating matter scraping structure and drainage structure. The utility model relates to a high temperature demulsification structure of waste water, microbubble air floatation structure, floating matter scraping structure and drainage structure. The utility model relates to a high temperature demulsification structure of waste water, microbubble air floatation structure, floating matter scraping structure and drainage structure. 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The high temperature de-emulsified wastewater gas floatation separation device according to claim 3, characterized in that: The air compression assembly (10) comprises a connecting seat (27), a compression cavity (28) arranged on the connecting seat (27), a first compression air feeding gear (29) rotatably installed in the compression cavity (28), a second compression air feeding gear (30) rotatably connected to the side of the first compression air feeding gear (29), a first driving motor (31) arranged on the first compression air feeding gear (29), a second driving motor (40) arranged on the second compression air feeding gear (30), an air inlet (32) formed on the outer side of the compression cavity (28), and an air outlet (33) formed on the inner side of the compression cavity (28).

8. The high temperature de-emulsified wastewater gas floatation separation device according to claim 7, characterized in that: A first one-way flow guide pipe (12) is arranged in communication on the air outlet (33), a filter cover (34) is mounted on the air inlet (32), the first one-way flow guide pipe (12) comprises a first flow guide pipe (35), a first one-way valve (36) arranged on the first flow guide pipe (35), and a third electric control switch (41) arranged on the first flow guide pipe (35), the second one-way flow guide pipe (14) comprises a second flow guide pipe (37), a second one-way valve (38) arranged on the second flow guide pipe (37), and a fourth electric control switch (39) arranged on the second flow guide pipe (37).

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