An air flotation sewage treatment device for sewage treatment

Abstract

The present invention belongs to the technical field of sewage treatment, and discloses an air flotation sewage treatment device for sewage treatment, including a housing, and further including: a support assembly installed inside the housing; a treatment assembly installed at the bottom of the support assembly. In the present invention, sewage is stored in two sewage treatment cavities for air flotation treatment, which will push the foam generated in the sewage treatment cavity between the first annular cover and the second annular cover into the sewage treatment cavity formed by the third annular cover and the second annular cover. The foam in the sewage treatment cavity between the third annular cover and the second annular cover will flow into the interior of the housing along the guiding ring and can be discharged for unified collection and treatment. As the water injection pipe continuously injects water into the storage tank, it will successively overflow the two sewage treatment cavities to carry away the surface foam, achieving the purpose of quickly removing the foam. At the same time, the water flow can prevent the foam from accumulating, improving the efficiency of foam removal.

Description

Technical Field

[0001] The present invention belongs to the technical field of sewage treatment, and specifically relates to a dissolved air flotation sewage treatment device for sewage treatment. Background Art

[0002] A dissolved air flotation sewage treatment device is a device that uses the adsorption effect of bubbles to achieve the separation of solid particles or oil and water, and is widely used in multiple fields such as sewage treatment, industrial wastewater treatment, and food processing; the working principle of the dissolved air flotation sewage treatment device is mainly to inject gas (usually air or oxygen) into the sewage to form tiny bubbles. When these bubbles rise in the water, they will adhere to the suspended solids in the water and be carried to the water surface together to form a foam layer; subsequently, the foam layer is removed by a scraper or other equipment, thereby achieving the purpose of purifying the water quality. In this process, the size, quantity, and distribution of the bubbles have an important impact on the dissolved air flotation effect. The smaller the bubbles, the larger the surface area, and the larger the contact area with the pollutants, making it easier to float the pollutants; currently, in the process of dissolved air flotation sewage treatment, the foam is scraped off by a rotating scraper. However, due to the large volume of the scraper and the limited rotation speed, the time for the scraper to rotate around the sewage tank for one week is relatively long, making it difficult to quickly and effectively clean the foam floating on the sewage. As the foam continuously rotates and accumulates by the scraper, the foam volume increases and is squeezed and ruptured. Therefore, a dissolved air flotation sewage treatment device for sewage treatment is now proposed. Summary of the Invention

[0003] To solve the problems raised in the above background art, the present invention provides a dissolved air flotation sewage treatment device for sewage treatment, which solves the problem that the foam continuously rotates and accumulates by the existing scraper, and the foam volume increases and is squeezed and ruptured.

[0004] To achieve the above object, the present invention provides the following technical solution: A dissolved air flotation sewage treatment device for sewage treatment, including a housing, and further including:

[0005] A support assembly, the support assembly is installed inside the housing;

[0006] A treatment assembly, the treatment assembly is installed at the bottom of the support assembly;

[0007] An aeration assembly, the aeration assembly is arranged inside the housing and located inside the treatment assembly;

[0008] A pushing assembly, the pushing assembly is installed at the bottom of the housing;

[0009] Among them, the pushing assembly includes a drive motor installed at the bottom of the housing, a cam assembled to the output end of the drive motor, a second guide rod fixedly installed at the bottom of the housing, and a transmission plate movably sleeved outside the second guide rod;

[0010] The processing component includes a storage tank fixedly installed inside the housing. A push rod is movably sleeved inside the storage tank, and the bottom of the push rod is fixedly connected to the transmission plate;

[0011] At the bottom inside the housing, a first annular cover, a second annular cover, and a third annular cover are arranged in sequence from inside to outside. A second support ring is movably sleeved outside the storage tank, and the top of the first annular cover is connected to the second support ring;

[0012] First support rings are fixedly installed at the tops of the third annular cover and the second annular cover. The first support ring, the second support ring are connected to the bottom of the support component;

[0013] A water injection pipe is fixedly installed in the middle of the support component, and the water injection pipe is located inside the storage tank;

[0014] Two sewage treatment cavities are formed between the first annular cover, the second annular cover, and the third annular cover. The heights of the tops of the first annular cover, the second annular cover, and the third annular cover decrease in sequence from inside to outside.

[0015] Preferably, a guide ring is fixedly installed at the upper end outside the third annular cover;

[0016] Clear water overflows from the water injection pipe inside the storage tank and then enters the two sewage treatment cavities in sequence. Through the water flow, the foam floating in the two sewage treatment cavities is pushed along the guide ring into the housing.

[0017] Preferably, the top angles of the inner wall of the first support ring are arc-shaped, and the cross-sections of the first annular cover, the second annular cover, and the third annular cover are serrated, so that the cross-sections of the two sewage treatment cavities are serrated;

[0018] The inclination angles of the tops of the third annular cover, the second annular cover, and the first annular cover are the same.

[0019] Preferably, the support component includes a fixing plate fixedly installed on the inner wall of the top of the housing. Two first guide rods are movably sleeved on the fixing plate, and two threaded rods are threadedly sleeved on the fixing plate. The two threaded rods and the two first guide rods are arranged diagonally.

[0020] Preferably, a docking plate is movably installed at the bottom of the threaded rod. The water injection pipe is fixedly installed on the docking plate, and the bottom of the docking plate is connected to the first support ring through a docking rod.

[0021] Preferably, the processing component further includes a first stabilizing block fixedly installed on the inner wall of the first annular cover. A vertical sliding groove for the first stabilizing block to slide is formed outside the storage tank.

[0022] Preferably, the aeration assembly includes an aeration pipe fixedly installed at the bottom inside the housing through a second stabilizing block in an annular array. Two adjacent aeration pipes are connected by a docking pipe, so that the aeration pipe and the docking pipe form a closed ring, and the ring is located inside the two sewage treatment cavities.

[0023] Preferably, aeration holes are provided at the tops of the docking pipe and the aeration pipe, and the ring is inflated through an injection pipe.

[0024] Preferably, the pushing assembly includes a through groove opened at the bottom of the housing, and the through groove corresponds to the docking pipe;

[0025] A connecting frame is fixedly installed at the bottom of the docking pipe, the connecting frame penetrates through the inside of the through groove, and a protective cover for blocking the through groove is provided between the docking pipe and the housing.

[0026] Preferably, a support frame is fixedly installed at the top of the transmission plate, a transmission rod is installed on the support frame, and a rectangular through groove for the transmission rod to slide is opened at the lower end of the connecting frame.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0028] In the present invention, sewage is stored in two sewage treatment cavities for flotation treatment. Clear water is injected into the storage tank through a water injection pipe, the water overflows the top of the storage tank, and enters the sewage treatment cavity between the second annular cover and the first annular cover along the surface of the second support ring. Since the sewage in the sewage treatment cavity is in a saturated state, as the clear water enters the sewage treatment cavity, the foam generated in the sewage treatment cavity between the first annular cover and the second annular cover will be pushed into the sewage treatment cavity formed by the third annular cover and the second annular cover, and the foam in the sewage treatment cavity between the third annular cover and the second annular cover will flow into the inside of the housing along the guide ring, and then can be discharged for unified collection and treatment. As the water injection pipe continuously injects water into the storage tank, the two sewage treatment cavities are successively overflowed to take away the surface foam, achieving the purpose of quickly removing the foam. At the same time, the phenomenon of foam accumulation can be avoided through the water flow, and the efficiency of foam removal is improved;

[0029] In the present invention, by rotating the threaded rod to push down the docking plate, the docking rod, the first annular cover, the second annular cover and the third annular cover, the first annular cover, the second annular cover and the third annular cover are gradually compressed, reducing the corner of the cross section of the two sewage treatment cavities, thereby increasing the residence time of the bubbles generated by the aeration assembly in the sewage treatment cavity, ensuring sufficient contact between the bubbles and the suspended matter, and improving the sewage treatment effect;

[0030] In the present invention, a driving motor drives a cam to rotate, pushing a transmission plate, a support frame and a transmission rod upward, and pushing a connecting frame and a docking pipe to rotate at the hinge joint with an aeration pipe. Meanwhile, air is injected into the aeration pipe through an injection pipe, and the gas is discharged through aeration holes in two sewage treatment chambers. During the rotation of the docking pipe, the direction of air injection through the aeration holes is changed, so that the bubbles are more evenly dispersed in the two sewage treatment chambers, improving the sewage treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic diagram of the overall external structure of the present invention;

[0032] Figure 2 is a schematic diagram of the internal structure of the present invention;

[0033] Figure 3 is of the present invention Figure 2 schematic diagram of the enlarged structure at A in;

[0034] Figure 4 is a schematic diagram of the cooperation structure of the treatment component and the support component of the present invention;

[0035] Figure 5 is a schematic diagram of the cooperation structure of the pushing component, the treatment component and the aeration component of the present invention;

[0036] Figure 6 is a schematic diagram of the external structure of the pushing component and the aeration component of the present invention;

[0037] Figure 7 is a schematic diagram of the cross-sectional structure of the pushing component and the treatment component of the present invention;

[0038] Figure 8 is of the present invention Figure 7 schematic diagram of the enlarged structure at B in;

[0039] Figure 9 is a schematic diagram of the disassembled structure of the aeration component of the present invention;

[0040] Figure 10 is a schematic diagram of the cross-sectional structure of the aeration component of the present invention.

[0041] In the figure: 1. Housing; 2. Support assembly; 21. Fixed plate; 22. First guide rod; 23. Docking plate; 24. Threaded rod; 3. Pushing assembly; 31. Transmission plate; 32. Support frame; 33. Transmission rod; 34. Connecting frame; 35. Through groove; 36. Second guide rod; 37. Protective cover; 38. Cam; 4. Treatment assembly; 41. Storage tank; 411. First annular cover; 412. Third annular cover; 413. Second annular cover; 414. Guide ring; 42. Pushing rod; 43. Vertical chute; 44. First stabilizing block; 45. Docking rod; 46. First support ring; 47. Second support ring; 48. Water injection pipe; 5. Aeration assembly; 51. Second stabilizing block; 52. Aeration pipe; 53. Docking pipe; 54. Aeration holes; 55. Gas injection pipe. Detailed implementation manner

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0043] As Figures 1 to 10 shown, the present invention provides an air flotation sewage treatment device for sewage treatment, including a housing 1, and further including:

[0044] A support assembly 2, the support assembly 2 is installed inside the housing 1;

[0045] A treatment assembly 4, the treatment assembly 4 is installed at the bottom of the support assembly 2;

[0046] An aeration assembly 5, the aeration assembly 5 is arranged inside the housing 1 and is located inside the treatment assembly 4;

[0047] A pushing assembly 3, the pushing assembly 3 is installed at the bottom of the housing 1;

[0048] Among them, the pushing assembly 3 includes a driving motor installed at the bottom of the housing 1, a cam 38 assembled on the output end of the driving motor, a second guide rod 36 is fixedly installed at the bottom of the housing 1, and a transmission plate 31 is movably sleeved outside the second guide rod 36;

[0049] The treatment assembly 4 includes a storage tank 41 fixedly installed inside the housing 1, a pushing rod 42 is movably sleeved inside the storage tank 41, and the bottom of the pushing rod 42 is fixedly connected to the transmission plate 31;

[0050] Inside the bottom of the housing 1, a first annular cover 411, a second annular cover 413 and a third annular cover 412 are successively arranged from inside to outside. A second support ring 47 is movably sleeved outside the storage tank 41, and the top of the first annular cover 411 is connected to the second support ring 47;

[0051] At the tops of the third annular cover 412 and the second annular cover 413, a first support ring 46 is fixedly installed. The first support ring 46, the second support ring 47 are connected to the bottom of the support assembly 2;

[0052] In the middle of the support assembly 2, a water injection pipe 48 is fixedly installed. The water injection pipe 48 is located inside the storage tank 41;

[0053] Between the first annular cover 411, the second annular cover 413 and the third annular cover 412, two sewage treatment cavities are formed. The heights of the tops of the first annular cover 411, the second annular cover 413 and the third annular cover 412 decrease successively from inside to outside;

[0054] At the upper end outside the third annular cover 412, a guide ring 414 is fixedly installed;

[0055] The clear water passes through the water injection pipe 48 and overflows the top of the storage tank 41 into the two sewage treatment cavities in turn. Through the water flow, the foam floating in the two sewage treatment cavities is successively pushed along the guide ring 414 into the housing 1.

[0056] Sewage is injected into the storage tank 41 through the support assembly 2. The sewage overflows along the top of the storage tank 41 and enters the treatment cavity between the first annular cover 411 and the second annular cover 413, and at the same time overflows the top of the second annular cover 413 and enters the treatment cavity between the third annular cover 412 and the second annular cover 413. As the sewage in the two treatment cavities reaches saturation, air is injected into the two treatment cavities through the aeration assembly 5. The suspended matter in the sewage is carried by the floating bubbles, and the generated foam floats in the two sewage treatment cavities. At this time, the water injection device is connected to the water injection pipe 48, and clear water is injected into the storage tank 41 through the water injection pipe 48. The water overflows the top of the storage tank 41 and enters the sewage treatment cavity between the second annular cover 413 and the first annular cover 411 along the surface of the second support ring 47. Since the sewage in the sewage treatment cavity is in a saturated state, as the clear water enters the sewage treatment cavity, the foam generated in the sewage treatment cavity between the first annular cover 411 and the second annular cover 413 will be pushed into the sewage treatment cavity formed by the third annular cover 412 and the second annular cover 413, and the foam in the sewage treatment cavity between the third annular cover 412 and the second annular cover 413 will flow into the inside of the housing 1 along the guide ring 414, and then can be discharged for unified collection and treatment. As the water injection pipe 48 continuously injects water into the storage tank 41, the two sewage treatment cavities are successively overflowed to carry away the surface foam, achieving the purpose of quickly removing the foam. At the same time, the water flow can prevent the foam from accumulating, improving the efficiency of foam removal.

[0057] As shown Figures 2 - 4 in FIG., the top corners of the inner wall of the first support ring 46 are arc-shaped, and the cross-sections of the first annular cover 411, the second annular cover 413 and the third annular cover 412 are serrated, so that the cross-sections of the two sewage treatment cavities are serrated;

[0058] The inclination angles of the tops of the third annular cover 412, the second annular cover 413 and the first annular cover 411 are the same.

[0059] The water injection device injects clean water into the storage tank 41 through the water injection pipe 48. The water overflows the storage tank 41 and enters the sewage treatment cavity formed by the first annular cover 411 and the second annular cover 413 along the outer edge of the top of the second support ring 47 and the first annular cover 411, carrying the foam and overflowing the first support ring 46 into the sewage treatment cavity formed by the third annular cover 412 and the second annular cover 413. The inclined design of the tops of the first annular cover 411, the second annular cover 413 and the third annular cover 412 can reduce the impact force of the water flow on the foam and avoid the phenomenon of foam rupture.

[0060] As shown Figures 2 - 4 in FIG., the support assembly 2 includes a fixing plate 21 fixedly installed on the inner wall of the top end of the housing 1. Two first guide rods 22 are movably sleeved on the fixing plate 21. Two threaded rods 24 are threadedly sleeved on the fixing plate 21. The two threaded rods 24 and the two first guide rods 22 are arranged diagonally;

[0061] The bottom of the threaded rod 24 is movably installed with a docking plate 23. The water injection pipe 48 is fixedly installed on the docking plate 23. The bottom of the docking plate 23 is connected to the first support ring 46 through a docking rod 45;

[0062] The treatment assembly 4 further includes a first stabilizing block 44 fixedly installed on the inner wall of the first annular cover 411. A vertical sliding groove 43 for the first stabilizing block 44 to slide is opened outside the storage tank 41.

[0063] By rotating the threaded rod 24 to push the docking plate 23, the docking rod 45, the first annular cover 411, the second annular cover 413 and the third annular cover 412 downward, the first annular cover 411, the second annular cover 413 and the third annular cover 412 are gradually compressed, reducing the corner angle of the cross-sections of the two sewage treatment cavities, thereby increasing the residence time of the bubbles generated by the aeration assembly 5 in the sewage treatment cavities, ensuring sufficient contact between the bubbles and the suspended matter, and improving the sewage treatment effect.

[0064] As shown Figures 5 - 10 in FIG., the aeration assembly 5 includes an aeration pipe 52 fixedly installed at the bottom inside the housing 1 through a second stabilizing block 51 in a circular array. Adjacent two aeration pipes 52 are connected through a docking pipe 53, so that the aeration pipe 52 and the docking pipe 53 form a closed ring, and the ring is located inside the two sewage treatment cavities;

[0065] Both the top of the docking pipe 53 and the aeration pipe 52 are provided with aeration holes 54, and the ring injects gas into its interior through the gas injection pipe 55;

[0066] The pushing component 3 includes a through groove 35 opened at the bottom of the housing 1, and the through groove 35 corresponds to the docking pipe 53;

[0067] A connecting frame 34 is fixedly installed at the bottom of the docking pipe 53. The connecting frame 34 penetrates through the interior of the through groove 35. A protective cover 37 for blocking the through groove 35 is arranged between the docking pipe 53 and the housing 1;

[0068] A support frame 32 is fixedly installed at the top of the transmission plate 31. A transmission rod 33 is installed on the support frame 32. A rectangular through groove for the transmission rod 33 to slide is opened at the lower end of the connecting frame 34.

[0069] By driving the cam 38 to rotate through the driving motor, the transmission plate 31, the support frame 32 and the transmission rod 33 are pushed upward, the connecting frame 34 and the docking pipe 53 are pushed to rotate at the hinge joint with the aeration pipe 52. At the same time, gas is injected into the aeration pipe 52 through the gas injection pipe 55, and the gas is discharged through the aeration holes 54 in the two sewage treatment chambers. During the rotation of the docking pipe 53, the injection direction of the aeration holes 54 is changed. At the same time, the protruding part of the cam 38 disengages from the contact with the transmission plate 31. At this time, the transmission plate 31 moves downward to drive the connecting frame 34 and the docking pipe 53 to rotate in the reverse direction, and reciprocates in turn to make the bubbles more evenly dispersed in the two sewage treatment chambers, improving the sewage treatment effect;

[0070] At the same time, the transmission plate 31 moves upward to push the push rod 42 upward to discharge the water stored in the storage tank 41 through the top, and then enters the two sewage treatment chambers in turn to achieve the purpose of foam discharge.

[0071] The working principle and usage process of the present invention:

[0072] Sewage is injected into the storage tank 41 through the support component 2. The sewage overflows along the top of the storage tank 41 and enters the treatment cavity between the first annular cover 411 and the second annular cover 413. At the same time, it overflows the top of the second annular cover 413 and enters the treatment cavity between the third annular cover 412 and the second annular cover 413. As the sewage in the two treatment cavities reaches saturation, the driving motor drives the cam 38 to rotate, pushing the transmission plate 31, the support frame 32 and the transmission rod 33 upward, and pushing the connecting frame 34 and the docking pipe 53 to rotate at the hinge joint with the air distribution pipe 52. At the same time, air is injected into the air distribution pipe 52 through the air injection pipe 55, and the gas is discharged through the air holes 54 in the two sewage treatment cavities. During the rotation of the docking pipe 53, the direction of air injection through the air holes 54 is changed. At the same time, the protruding part of the cam 38 disengages from the contact with the transmission plate 31. At this time, the transmission plate 31 moves downward, driving the connecting frame 34 and the docking pipe 53 to rotate in the opposite direction, reciprocating in turn to make the bubbles more evenly dispersed in the two sewage treatment cavities, improving the sewage treatment effect;

[0073] At the same time, the water injection device is connected to the water injection pipe 48, and clean water is injected into the storage tank 41 through the water injection pipe 48. The transmission plate 31 moves upward to push the push rod 42 upward, and the water stored in the storage tank 41 is discharged through the top. The water overflows the top of the storage tank 41 and enters the sewage treatment cavity between the second annular cover 413 and the first annular cover 411 along the surface of the second support ring 47. Since the sewage in the sewage treatment cavity is saturated, as the clean water enters the sewage treatment cavity, the foam generated in the sewage treatment cavity between the first annular cover 411 and the second annular cover 413 will be pushed into the sewage treatment cavity formed by the third annular cover 412 and the second annular cover 413. The foam in the sewage treatment cavity between the third annular cover 412 and the second annular cover 413 will flow into the interior of the housing 1 along the guide ring 414 and can be discharged for unified collection and treatment. As the water injection pipe 48 continuously injects water into the storage tank 41, it overflows the two sewage treatment cavities in turn to carry away the surface foam, achieving the purpose of quickly removing the foam. At the same time, the water flow can prevent the foam from accumulating, improving the efficiency of foam removal;

[0074] The water overflows the storage tank 41 and enters the sewage treatment cavity formed by the first annular cover 411 and the second annular cover 413 along the outer edge of the top of the second support ring 47 and the first annular cover 411, carrying the foam and overflowing the first support ring 46 into the sewage treatment cavity formed by the third annular cover 412 and the second annular cover 413. The inclined design of the tops of the first annular cover 411, the second annular cover 413 and the third annular cover 412 can reduce the impact force of the water flow on the foam and prevent the foam from breaking;

[0075] Meanwhile, by rotating the threaded rod 24 downward, the docking plate 23, the docking rod 45, the first annular cover 411, the second annular cover 413 and the third annular cover 412 are pushed downward, so that the first annular cover 411, the second annular cover 413 and the third annular cover 412 are gradually compressed, reducing the rotation angle of the cross-sections of the two sewage treatment cavities, thereby increasing the residence time of the bubbles generated by the aeration assembly 5 in the sewage treatment cavities, ensuring sufficient contact between the bubbles and the suspended substances, and improving the sewage treatment effect.

[0076] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0077] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flotation sewage treatment device for sewage treatment, comprising a housing (1), characterized in that: Also includes: A support assembly (2), the support assembly (2) being installed inside the housing (1); A processing assembly (4), the processing assembly (4) being mounted on the bottom of the supporting assembly (2); an aeration component (5), the aeration component (5) being arranged inside the shell (1) and located inside the processing component (4); A pushing component (3), the pushing component (3) being mounted on the bottom of the housing (1); The pushing assembly (3) comprises a driving motor mounted on the bottom of the housing (1), a cam (38) mounted on the output end of the driving motor, a second guide rod (36) fixedly mounted on the bottom of the housing (1), and a transmission plate (31) being provided on the outer movable sleeve of the second guide rod (36); The processing assembly (4) comprises a storage tank (41) fixedly mounted inside the housing (1), a push rod (42) being provided in a movable sleeve inside the storage tank (41), and a bottom of the push rod (42) being fixedly connected to the transmission plate (31); The bottom of the shell (1) is provided with a first annular cover (411), a second annular cover (413) and a third annular cover (412) in order from the inside to the outside, the outer movable sleeve of the storage tank (41) is provided with a second support ring (47), and the top of the first annular cover (411) is connected to the second support ring (47); The tops of the third annular cover (412) and the second annular cover (413) are both fixedly mounted with first support rings (46), and the first support ring (46) and the second support ring (47) are connected to the bottom of the support assembly (2); A water injection pipe (48) is fixedly mounted in the middle of the support assembly (2), and the water injection pipe (48) is located inside the storage tank (41); Two sewage treatment chambers are formed between the first annular cover (411), the second annular cover (413) and the third annular cover (412), and the heights of the tops of the first annular cover (411), the second annular cover (413) and the third annular cover (412) decrease from the inside to the outside; The aeration assembly (5) comprises an aeration pipe (52) fixed to the bottom of the shell (1) in an annular array via a second stabilizing block (51), and two adjacent aeration pipes (52) are connected via a butt joint pipe (53), so that the aeration pipe (52) and the butt joint pipe (53) form a closed circular ring, and the circular ring is located inside the two sewage treatment chambers; The butt joint pipe (53) and the aeration pipe (52) are both provided with aeration holes (54) at the top, and the circular ring is injected with air through an air injection pipe (55); The pushing assembly (3) comprises a through groove (35) formed at the bottom of the housing (1), and the through groove (35) corresponds to the butt joint (53); A connecting frame (34) is fixedly mounted on the bottom of the butt-joint pipe (53), the connecting frame (34) passes through the interior of the through slot (35), and a protective cover (37) for sealing the through slot (35) is provided between the butt-joint pipe (53) and the housing (1); A support frame (32) is fixedly mounted on the top of the transmission plate (31), a transmission rod (33) is mounted on the support frame (32), and a rectangular through groove for the transmission rod (33) to slide is formed at the lower end of the connecting frame (34).

2. The flotation sewage treatment device for sewage treatment according to claim 1 is characterized in that: A guide ring (414) is fixedly mounted on the upper end of the exterior of the third annular cover (412); Clean water flows through the water injection pipe (48) over the top of the storage tank (41) and enters the two sewage treatment chambers in sequence, and the water flow pushes the floating foam in the two sewage treatment chambers in sequence along the guide ring (414) and discharges it into the shell (1).

3. The flotation sewage treatment device for sewage treatment according to claim 2 is characterized in that: The cross-sections of the first annular cover (411), the second annular cover (413) and the third annular cover (412) are sawtooth-shaped, so that the cross-sections of the two sewage treatment chambers are sawtooth-shaped; The inclination angles of the top ends of the third annular cover (412), the second annular cover (413) and the first annular cover (411) are consistent.

4. The flotation sewage treatment device for sewage treatment according to claim 3 is characterized in that: The support assembly (2) comprises a fixing plate (21) fixedly mounted on the inner wall of the top end of the housing (1), two first guide rods (22) being movably sleeved on the fixing plate (21), two threaded rods (24) being threaded sleeved on the fixing plate (21), and the two threaded rods (24) being arranged diagonally to the two first guide rods (22).

5. The flotation sewage treatment device for sewage treatment according to claim 4 is characterized in that: A docking plate (23) is movably mounted at the bottom of the threaded rod (24), the water injection pipe (48) is fixedly mounted on the docking plate (23), and the bottom of the docking plate (23) is connected to the first support ring (46) via a docking rod (45).

6. The flotation sewage treatment device for sewage treatment according to claim 5 is characterized by: The processing assembly (4) further comprises a first stabilizing block (44) fixedly mounted on the inner wall of the first annular cover (411), and a vertical sliding groove (43) for the first stabilizing block (44) to slide is provided on the outside of the storage tank (41).

Images