Bromine extraction wastewater treatment device

Abstract

The invention relates to the technical field of wastewater treatment, in particular to a bromine extraction wastewater treatment device which comprises a wastewater treatment box and an aeration device and further comprises a supporting assembly, the supporting assembly comprises a support, supporting legs, a top plate, a supporting plate and a flotation assembly, and the flotation assembly comprises a cover body, a motor, a worm, a worm gear, a screw rod, a sliding plate, a lifter, a partition plate and a fishing assembly. A motor drives a worm, the worm drives a worm gear, then a screw rod rotates, a sliding plate and a lifter are driven to drive a partition plate and a fishing assembly to ascend and descend, waste residues in a foam layer are automatically fished, compared with manual fishing, the automatic waste residue fishing device is more efficient and saves manpower, and the problem of impurity residues possibly caused by manual operation can be avoided; due to the design of a hinge rod, a hinge shaft and a hinge frame in the fishing assembly, the fishing frame can rotate around the hinge shaft, and the angle can be conveniently adjusted. And the gear is matched with the rack, so that the angle of the fishing frame can be accurately controlled when the fishing frame reaches a specified position (such as above a scum collecting frame), and the smooth blanking of the waste residues is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment, in particular to a treatment device for bromine extraction wastewater. Background Art

[0002] Bromine extraction wastewater flotation uses highly dispersed tiny bubbles as carriers to make hydrophobic pollutants in the wastewater (such as grease, some suspended solids, etc.) adhere to the bubbles and float to the water surface with the bubbles to form a foam layer. The foam is then scraped off to separate the pollutants from the wastewater. The core lies in the hydrophobicity of the pollutants and the effective attachment of the bubbles. When tiny bubbles come into contact with pollutant particles in the wastewater, if the pollutants have a certain degree of hydrophobicity, the interfacial tension between the gas and the particles will cause the bubbles to adhere to the surface of the particles. As the bubbles continue to float, they carry the pollutants to the water surface, forming a floating foam layer, which separates the pollutants from the water.

[0003] Existing flotation dredging often uses manual dredging, which is time-consuming and labor-intensive, and is prone to impurities remaining. If mechanical dredging is used, it is inconvenient to transfer the waste residue. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In view of the shortcomings of the prior art, the present invention provides a treatment device for bromine extraction wastewater.

[0006] (2) Technical solution

[0007] To achieve the above object, the present invention provides the following technical solution: a bromine extraction wastewater treatment device, comprising a wastewater treatment tank and an aeration device, wherein the wastewater treatment tank is provided with a treatment chamber with an upper opening, and the bottom wall of the treatment chamber is provided with the aeration device, and further comprising:

[0008] A support assembly comprising a bracket, legs, a top plate, and a support plate. The brackets are arranged obliquely at the four corners of the wastewater treatment tank. The legs are provided above one end of the bracket away from the treatment chamber. The top plate is provided above four groups of legs. Support plates are also provided on the two groups of legs located on the same left and right sides.

[0009] Flotation component, the flotation component includes a cover body, a motor, a worm, a worm gear, a screw rod, a slide plate, a lifter, a partition plate and a fishing component. One end of a group of the support plates far from the treatment chamber is provided with the cover body. A worm and two worm gears are arranged in the cover body. The output end of the motor penetrates through the cover body and is connected to the worm. Two screw rods are also rotatably arranged between the two support plates. The corresponding screw rods penetrate through the support plates and the cover body and are connected to the centers of the corresponding worm gears. The slide plate is provided with screw holes adapted to the two screw rods. The lifter penetrates through the center of the slide plate and is connected to the partition plate. Fishing components are arranged on the left and right sides of the partition plate.

[0010] In order to facilitate adjusting the angle of the fishing frame for the discharge of waste residue, the present invention is improved in that the fishing component includes a hinge rod, a hinge shaft, a fishing frame and a hinge bracket. Hinge brackets are symmetrically arranged on the left and right sides of the partition plate. A hinge shaft penetrates through between the two hinge brackets. The side wall of the fishing frame abuts against the partition plate. Hinge rods are symmetrically arranged on the front and back sides above the fishing frame. The hinge shaft penetrates through the corresponding hinge rods on the front and back sides.

[0011] In order to facilitate adjusting the angle of the fishing frame at a specified position for the discharge of waste residue, the present invention is improved in that the fishing component further includes a cross beam, a gear and a rack. Cross beams are symmetrically arranged on the front and back sides below the two support plates. A rack is further arranged on one side of the cross beam far from the treatment chamber. Gears are further arranged on the front and back sides of the hinge shaft. The rack can be meshed with the gear.

[0012] In order to ensure the stability of the gear, the present invention is improved in that the fishing component further includes a limiting component. The limiting component includes a spring, a first anchor column and a second anchor column. A first anchor column is arranged at the lower part of one end of the gear far from the hinge column. Second anchor columns are further arranged on the front and back sides of the partition plate. The upper and lower sides of the spring are respectively connected to the first anchor column and the second anchor column.

[0013] Preferably, an air supply component is further arranged on the front side of the wastewater treatment tank. The air supply component includes a blower, a shunt pipe, a connecting pipe and a gas distribution pipe. Gas distribution pipes in a U shape are symmetrically arranged on the left and right sides of the treatment chamber. The output end of the blower is connected to the shunt pipe. The middle part of the shunt pipe is connected to the aeration device. Connecting pipes connected to the input ends of the gas distribution pipes are arranged on the left and right sides of the shunt pipe.

[0014] Preferably, reinforcing ribs connected to the support are further arranged at the four corners of the wastewater treatment tank.

[0015] Preferably, guide rods penetrating through the slide plate are further arranged on the partition plate. The guide rods are arranged in two groups symmetrically.

[0016] In order to facilitate the collection of waste residues, the present invention has been improved in that scum collection frames with upper openings are further provided on the left and right sides of the wastewater treatment box.

[0017] In order to facilitate the cleaning of the scooping frame, the present invention has been improved in that cleaning components are further provided on the left and right sides of the wastewater treatment tank, and the cleaning components include a mounting plate, a water tank, a water pump, an input pipe, an output pipe and an auxiliary frame. The scum collection frame is provided with a mounting plate at one end away from the wastewater treatment tank, and a water tank is provided on the mounting plate. Auxiliary frames are provided on the two groups of legs located on the same left and right sides, and output pipes with several groups of output heads are provided under the auxiliary frame. The input end of the water pump is connected to the water tank, the output end of the water pump is connected to the input pipe, and the output end of the input pipe is connected to the input end of the output pipe.

[0018] (3) Beneficial effects

[0019] Compared with the prior art, the present invention provides a treatment device for bromine extraction wastewater, which has the following beneficial effects:

[0020] This bromine extraction wastewater treatment device uses a motor to drive a worm, which in turn drives a worm wheel, thereby rotating the screw, driving a slide plate and a lifter to drive a partition and a scooping assembly to rise and fall, thereby automatically scooping out waste residue in the foam layer. Compared with manual scooping, this device is more efficient, saves manpower, and avoids the problem of impurity residues that may be caused by manual operation.

[0021] The design of the hinged rod, hinged shaft, and hinged frame in the scoop assembly allows the scoop frame to rotate around the hinged shaft, facilitating angle adjustment. The coordination of the gear and rack allows precise control of the angle of the scoop frame when it reaches a specified position (such as above the slag collection frame), ensuring smooth slag discharge and resolving the issue of inconvenient slag transfer caused by mechanical scooping.

[0022] The spring, first anchor column and second anchor column in the limit assembly play a limiting and stabilizing role during the movement of the gear, preventing the gear from shaking or displacing, ensuring the stability of the engagement between the gear and the rack, and thereby improving the reliability and stability of the entire scooping assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the main view of the structure of the present invention in the scooping state;

[0025] Figure 3 This is a bottom view schematic diagram of the structure of the present invention in the fishing state;

[0026] Figure 4 The structure of the present invention Figure 2 A partial enlarged schematic diagram in the middle;

[0027] Figure 5 This is a schematic diagram of the main view of the structure of the present invention in the blanking and cleaning state;

[0028] Figure 6 The structure of the present invention Figure 5 A partial enlarged schematic diagram of point B in the middle;

[0029] Figure 7 It is a partial top view schematic diagram of the structure of the present invention;

[0030] Figure 8 It is a partial bottom view schematic diagram of the structure of the present invention;

[0031] Figure 9 The structure of the present invention Figure 8 A partial enlarged schematic diagram of point C in the middle;

[0032] Figure 10 It is a partial explosion schematic diagram of the structure of the present invention.

[0033] In the figure: 1. Wastewater treatment tank; 2. Aeration device; 3. Bracket; 4. Support leg; 5. Top plate; 6. Support plate; 7. Cover; 8. Motor; 9. Worm; 10. Worm gear; 11. Screw; 12. Slide plate; 13. Lifter; 14. Partition; 15. Articulated rod; 16. Articulated shaft; 17. Fishing frame; 18. Articulated frame; 19. Crossbeam; 20. Gear; 21. Rack; 22. Spring; 23. First anchor column; 24. Second anchor column; 25. Fan; 26. Diverter pipe; 27. Connecting pipe; 28. Air distribution pipe; 29. ​​Reinforcement rib; 30. Guide rod; 31. Scum collection frame; 32. Mounting plate; 33. Water tank; 34. Water pump; 35. Inlet pipe; 36. Outlet pipe; 37. Auxiliary frame. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] See also Figures 1-10 A bromine extraction wastewater treatment device includes a wastewater treatment box 1 and an aeration device 2. The wastewater treatment box 1 is provided with a treatment chamber with an upper opening, and the bottom wall of the treatment chamber is provided with the aeration device 2. The wastewater treatment box 1 carries wastewater, which is then aerated by the aeration device 2, and scum is on the surface of the wastewater. The device also includes:

[0036] Support assembly, the support assembly includes a bracket 3, a leg 4, a top plate 5 and a support plate 6. The bracket 3 is arranged obliquely at the four corners of the wastewater treatment tank 1. The leg 4 is provided above one end of the bracket 3 away from the treatment chamber. The top plate 5 is provided above four groups of the legs 4. Support plates 6 are also provided on the two groups of legs 4 on the same left and right sides. The bracket 3 is arranged obliquely at the four corners of the wastewater treatment tank 1. The leg 4 is provided above one end of the bracket 3 away from the treatment chamber. Four groups of legs 4 support the top plate 5. Support plates 6 are provided on the two groups of legs 4 on the same left and right sides. There is no power transmission, which provides stable support for the flotation component;

[0037] The flotation assembly includes a cover 7, a motor 8, a worm 9, a worm gear 10, a screw 11, a slide 12, a lifter 13, a partition 14 and a scooping assembly. A group of support plates 6 are provided with the cover 7 at one end away from the processing chamber. A worm 9 and two groups of worm gears 10 are provided in the cover 7. The output end of the motor 8 passes through the cover 7 and is connected to the worm 9. Two groups of screws 11 are also rotatably provided between the two groups of support plates 6. The corresponding screws 11 pass through the support plates 6 and the cover 7 and are connected to the corresponding The center of the worm gear 10 is connected, the skateboard 12 is provided with screw holes adapted to the two groups of the screw rods 11, the lifter 13 passes through the center of the skateboard 12 and is connected to the partition 14, and the left and right sides of the partition 14 are provided with scooping components, the output end of the motor 8 passes through the cover body 7 and is connected to the worm 9, the worm 9 drives the two groups of worm gears 10 in the cover body 7 to rotate, the screw rod 11 connected to the center of the worm gear 10 passes through the support plate 6 and the cover body 7, the screw hole on the skateboard 12 cooperates with the screw 11, and the lifter 13 passes through the skateboard 12 and is connected to the partition 14. The motor 8 drives the worm 9, the worm 9 drives the worm gear 10, and the worm gear 10 drives the screw 11 to rotate, so that the slide 12 moves left and right on the screw 11, and the lifter 13 drives the partition 14 to move up and down. Initially, when the scooping component is projected into the processing chamber from above, the lifter 13 drives the partition 14 with the scooping component to extend into the processing chamber, and the scooping end of the scooping component is located below the water surface. As the partition 14 moves horizontally, the impurities are pushed to the other end of the water surface by the partition 14, and then the lifter 13 drives the partition 14 with the scooping component to rise, and the impurities are scooped by the partition 14 and the corresponding scooping component, and then the motor 8 continues to feed until the scooping component is misaligned with the processing chamber. At this time, the scooping component is rotated to clean up the waste residue, and the above process is repeated to complete the waste residue scooping operation.

[0038] In this embodiment, the scooping assembly includes a hinged rod 15, a hinged shaft 16, a scooping frame 17 and a hinged frame 18. The hinged frames 18 are symmetrically arranged on the left and right sides of the partition 14, and a hinged shaft 16 is provided between the two groups of the hinged frames 18. The side walls of the scooping frame 17 are attached to the partition 14. The hinged rods 15 are symmetrically arranged on the front and back sides above the scooping frame 17. The corresponding hinged rods 15 are passed through the front and back sides of the hinged shaft 16. The hinged frame 18 on the partition 14 provides stable support for the hinged shaft 16 with the hinged rod 15. The hinged rod 15 is fixedly connected to the scooping frame 17 at the bottom. Several groups of drainage holes are provided on the scooping frame 17 to facilitate the drainage of waste liquid and then the cleaning of waste residue.

[0039] During actual use, if the angle of the scooping assembly is adjusted manually, it will be time-consuming and labor-intensive. For this reason, the scooping assembly also includes a crossbeam 19, a gear 20 and a rack 21. The crossbeams 19 are symmetrically arranged on the front and rear sides below the two groups of support plates 6. The crossbeam 19 is also provided with a rack 21 on the side away from the processing chamber. Gears 20 are also provided on the front and rear sides of the hinge shaft 16. The rack 21 can engage with the gear 20. When the salvage operation is completed, the partition 14 and the corresponding scooping assembly are just above the wastewater treatment tank 1, and the gear 20 is located below the rack 21. When the slide 12 is attached to the support plate 6, the lifter 13 continues to contract, and the corresponding gear 20 can engage with the rack 21, so that the angle of the scooping frame 17 changes, and the scooping chamber enclosed by the scooping frame 17 and the partition 14 is opened, and the waste residue falls.

[0040] During the scooping operation, it is necessary to ensure that the scooping frame 17 and the partition 14 are stably fitted together to avoid the scooping frame 17 and the partition 14 being separated by mistake after the scooping is completed, resulting in impurities being spilled into the processing chamber. The scooping assembly also includes a limiting assembly, and the limiting assembly includes a spring 22, a first anchor column 23 and a second anchor column 24. The gear 20 is provided with a first anchor column 23 at the lower part of the end away from the hinge column, and the partition 14 is also provided with a second anchor column 24 on the front and rear sides. The upper and lower sides of the spring 22 are respectively connected to the first anchor column 23 and the second anchor column 24. Initially, When the gear 20 is engaged with the rack 21, the spring 22 is connected to the first anchor column 23 and the second anchor column 24, and the scooping frame 17 is stably fitted to the partition 14. After the rack 21 contacts the gear 20, the gear 20 drives the hinge shaft 16 to rotate a certain angle (this angle is an acute angle to ensure the stability of the overall operation of the equipment). At this time, the spring 22 is in an elongated state. When the gear 20 is no longer engaged with the rack 21, the hinge frame is affected by gravity and the tension of the spring 22, and is stably fitted to the partition 14. During the scooping operation, the second anchor column 24 is located above the wastewater treatment tank 1.

[0041] During actual use, an air supply component is further provided on the front side of the wastewater treatment tank 1. The air supply component includes a fan 25, a shunt pipe 26, a connecting pipe 27, and a gas distribution pipe 28. The gas distribution pipes 28 in the shape of a "C" are symmetrically arranged on the left and right sides of the treatment chamber. The output end of the fan 25 is connected to the shunt pipe 26. The middle part of the shunt pipe 26 is connected to the aeration device 2. The left and right sides of the shunt pipe 26 are provided with connecting pipes 27 connected to the input ends of the gas distribution pipes 28. The fan 25 supplies air to the aeration device 2 and the air distribution pipes. The air distribution pipes are used to blow the impurities on the water surface towards the middle part of the treatment chamber. So when the partition 14 with the fishing frame 17 descends for the fishing operation, according to requirements, the output holes of the gas distribution pipes 28 can be arranged obliquely with respect to the wastewater surface. The gas distribution pipes 28 can be embedded in the wastewater treatment tank 1 to make the side walls of the treatment chamber flush, so as to ensure the stability of the operation of the fishing frame 17, that is, there is no movement interference between the fishing frame 17 and the gas distribution pipes 28. According to requirements, the impurities on the periphery of the gas distribution pipes 28 can also be manually fished. Since the fishing operation position is on both sides of the wastewater treatment tank 1, the operation is convenient. The structures of the connecting pipes 27 and the gas distribution pipes 28 are only a preferred embodiment of this example. If there are no connecting pipes 27 and gas distribution pipes 28, since the fishing frames 17 on both sides of the partition 14 are right-angled triangles, when they fall into the wastewater, the floating scum will also float to the wastewater surface through the inclined surfaces of the fishing frames 17, and will not affect the subsequent fishing operation.

[0042] In this embodiment, reinforcing ribs 29 connected to the support 3 are further provided at the four corners of the wastewater treatment tank 1. The reinforcing ribs 29 ensure the strength of the support 3.

[0043] During actual use, guide rods 30 penetrating through the sliding plate 12 are further provided on the partition 14. The guide rods 30 are arranged in two groups symmetrically, and the guide rods 30 ensure the stable lifting of the partition 14.

[0044] After the waste residue is fished out, it is also necessary to collect the waste residue in a centralized manner. For this purpose, a scum collecting frame 31 with an upper opening is further provided on the left and right sides of the wastewater treatment tank 1. A cleaning assembly is further provided on the left and right sides of the wastewater treatment tank 1. The cleaning assembly includes a mounting plate 32, a water tank 33, a water pump 34, an input pipe 35, an output pipe 36 and an auxiliary frame 37. The scum collecting frame 31 is provided with a mounting plate 32 at one end away from the wastewater treatment tank 1. The water tank 33 is provided on the mounting plate 32. An auxiliary frame 37 is provided on the two groups of legs 4 on the same left and right sides. An output pipe 36 with several groups of output heads is provided below the auxiliary frame 37. The input end 34 is connected to the water tank 33, the output end of the water pump 34 is connected to the input pipe 35, and the output end of the input pipe 35 is connected to the input end of the output pipe 36. The mounting plate 32 provides stable support for the water tank 33. The water pump 34 sends the liquid in the water tank 33 into the input pipe 35. The auxiliary frame 37 provides stable support for the output pipe 36. The liquid in the output pipe 36 flushes the opened scooping frame 17 and one side wall of the partition 14, and the waste residue and liquid fall into the wastewater treatment tank 1. When the scooping frame 17 is separated from the partition 14, the scooping frame 17 is tilted at a certain angle, and the scooping frame 17 and the hinged rod 15 will not interfere with the movement of the cleaning component.

[0045] References to "embodiments" herein mean that the specific features, structures, or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the word "embodiment" in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or relevance to other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the various technical features mentioned in the embodiments can be combined in any manner to form a corresponding implementable technical solution.

[0046] Unless otherwise defined, the technical terms used herein have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms herein is only for describing specific embodiments and is not intended to limit this application.

[0047] While the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions, and alterations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A bromine extraction wastewater treatment device, comprising a wastewater treatment box (1) and an aeration device (2), wherein the wastewater treatment box (1) is provided with a treatment chamber with an upper opening, and the bottom wall of the treatment chamber is provided with the aeration device (2), characterized in that: Also includes: A support assembly, the support assembly comprising a bracket (3), legs (4), a top plate (5) and a support plate (6); the brackets (3) are arranged obliquely at four corners of the wastewater treatment box (1); the legs (4) are arranged above one end of the bracket (3) away from the treatment chamber; the top plate (5) is arranged above four groups of legs (4); and the support plates (6) are also arranged on two groups of legs (4) located on the same left and right sides; A flotation assembly, the flotation assembly comprising a cover (7), a motor (8), a worm (9), a worm wheel (10), a screw (11), a slide plate (12), a lifter (13), a partition (14) and a scooping assembly, wherein the cover (7) is arranged at one end of a group of support plates (6) away from the processing chamber, the cover (7) is provided with a worm (9) and two groups of worm wheels (10), the output end of the motor (8) passes through the cover (7) and is connected to the worm (9). The two groups of support plates (6) are connected, and two groups of screw rods (11) are rotatably arranged between the two groups of support plates (6). The corresponding screw rods (11) penetrate the support plates (6) and the cover body (7) and are connected to the center of the corresponding worm gear (10). The slide plate (12) is provided with screw holes that are compatible with the two groups of screw rods (11). The lifter (13) penetrates the center of the slide plate (12) and is connected to the partition plate (14). The left and right sides of the partition plate (14) are provided with scooping components.

2. A bromine extraction wastewater treatment device according to claim 1, characterized in that: The scooping assembly comprises a hinged rod (15), a hinged shaft (16), a scooping frame (17) and a hinged frame (18); the hinged frames (18) are symmetrically arranged on the left and right sides of the partition (14); a hinged shaft (16) is arranged between two groups of the hinged frames (18); the side wall of the scooping frame (17) is in contact with the partition (14); the hinged rods (15) are symmetrically arranged on the front and rear sides above the scooping frame (17); the front and rear sides of the hinged shaft (16) pass through the corresponding hinged rods (15).

3. A bromine extraction wastewater treatment device according to claim 2, characterized in that: The scooping assembly further comprises a crossbeam (19), a gear (20) and a rack (21); the crossbeams (19) are symmetrically arranged on the front and rear sides below the two groups of support plates (6); a rack (21) is also arranged on the side of the crossbeam (19) away from the processing chamber; the gears (20) are also arranged on the front and rear sides of the hinge shaft (16); and the rack (21) can mesh with the gear (20).

4. A bromine extraction wastewater treatment device according to claim 3, characterized in that: The scooping assembly also includes a limiting assembly, which includes a spring (22), a first anchor column (23) and a second anchor column (24). The first anchor column (23) is arranged at the lower part of one end of the gear (20) away from the hinge column, and the second anchor column (24) is also arranged on the front and rear sides of the partition (14). The upper and lower sides of the spring (22) are respectively connected to the first anchor column (23) and the second anchor column (24).

5. A bromine extraction wastewater treatment device according to claim 4, characterized in that: A gas supply assembly is also provided on the front side of the wastewater treatment tank (1). The gas supply assembly includes a fan (25), a shunt pipe (26), a connecting pipe (27), and a gas distribution pipe (28). The gas distribution pipes (28) in the shape of a "C" are symmetrically arranged on the left and right sides of the treatment chamber. The output end of the fan (25) is connected to the shunt pipe (26). The middle part of the shunt pipe (26) is connected to the aeration device (2). Connecting pipes (27) connected to the input ends of the gas distribution pipes (28) are arranged on the left and right sides of the shunt pipe (26).

6. A bromine extraction wastewater treatment device according to claim 5, characterized in that: Reinforcing ribs (29) connected to the support (3) are also provided at the four corners of the wastewater treatment tank (1).

7. A bromine extraction wastewater treatment device according to claim 6, characterized in that: Guide rods (30) penetrating through the sliding plate (12) are also provided on the partition plate (14). The guide rods (30) are arranged in two groups symmetrically.

8. A bromine extraction wastewater treatment device according to claim 7, characterized in that: Scum collection frames (31) with upper openings are also provided on the left and right sides of the wastewater treatment tank (1).

9. A bromine extraction wastewater treatment device according to claim 8, characterized in that: Cleaning assemblies are also provided on the left and right sides of the wastewater treatment tank (1). The cleaning assemblies include mounting plates (32), water tanks (33), water pumps (34), input pipes (35), output pipes (36), and auxiliary frames (37). Mounting plates (32) are provided at one end of the scum collection frames (31) away from the wastewater treatment tank (1). Water tanks (33) are provided on the mounting plates (32). Auxiliary frames (37) are provided on two sets of legs (4) on the same left or right side. Output pipes (36) with a number of output heads are provided below the auxiliary frames (37). The input ends of the water pumps (34) are connected to the water tanks (33). The output ends of the water pumps (34) are connected to the input pipes (35). The output ends of the input pipes (35) are connected to the input ends of the output pipes (36).

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