Air flotation machine for wastewater treatment and use method

Abstract

The invention discloses an air flotation machine for wastewater treatment and a using method, the air flotation machine comprises a treatment box, symmetrical fixing boxes are arranged at the two ends of the upper side of the treatment box, a threaded rod and a sliding rod which penetrate through the fixing boxes are arranged in the two fixing boxes respectively, attached sliding blocks are arranged in the fixing boxes, a first motor is arranged at one end of the threaded rod, and a second motor is arranged at the other end of the threaded rod. A connecting plate is arranged at the lower end of the sliding block, an air cylinder is arranged at the lower end of the connecting plate, a collecting box is arranged at the lower end of the air cylinder, an opening is formed in the upper end of the side wall of the treatment box, a sealing assembly is arranged at the upper end of the opening, an aeration device is arranged on one side of the treatment box, and a connecting pipe is arranged at the lower end of the aeration device; an output pipe with an air pump is arranged at one end of the connecting pipe, a plurality of groups of aeration discs are arranged on the output pipe, and a stirring assembly is arranged at the center of the treatment box, so that the stability of the air flotation effect is ensured, the device can adapt to the condition of scum generated by wastewater with different concentrations, the combination of impurities and bubbles in water is promoted, and a reliable guarantee is provided for wastewater treatment.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, and more particularly to an air flotation machine for wastewater treatment and a method of using the same. Background Art

[0002] In the existing wastewater treatment field, flotation machines, as devices that use bubbles to absorb suspended impurities in water and make them float and separate, are widely used in treatment scenarios such as industrial wastewater and domestic sewage. However, the flotation machines currently on the market still have many problems that need to be solved in their actual operation.

[0003] Specifically, the collection structure of traditional flotation machines is mostly fixed and cannot be flexibly adjusted according to the thickness and distribution of the scum in the treatment box. When the scum is thick, the collection components are easily stuck, which not only affects the collection efficiency but may also damage the equipment due to excessive force. When the scum is thin, it is difficult to fully collect it, resulting in some scum remaining on the water surface, affecting the subsequent treatment effect.

[0004] At the same time, the aeration devices of existing flotation machines often have the problem of uneven aeration. The bubbles are dense in some areas, while they are sparse in other areas. As a result, the suspended impurities in the water cannot be evenly combined with the bubbles, which in turn affects the floating separation efficiency of the impurities and makes it difficult to adapt to the wastewater treatment needs of different water volumes and different impurity contents.

[0005] In addition, existing flotation machines cannot fully mix the wastewater with the added chemicals, resulting in the chemicals not being able to fully function, affecting the flocculation effect of impurities, and thus reducing the overall treatment efficiency of the flotation machine. Summary of the Invention

[0006] (1) Technical problems solved

[0007] In view of the problems existing in the prior art, the present invention provides an air flotation machine for wastewater treatment to solve the technical problems mentioned in the background art that it is difficult to fully collect scum and cannot fully mix wastewater with added reagents.

[0008] (2) Technical solution

[0009] To achieve the above object, the present invention provides the following technical solutions:

[0010] The air flotation machine for wastewater treatment comprises a treatment box, wherein symmetrical fixing boxes are provided at both ends of the upper side of the treatment box, a screw and a sliding rod are respectively provided in the two fixing boxes, and a fitting slider is provided in each of the fixing boxes, one of the sliders is threadedly connected to the screw, and the other slider is slidably connected to the sliding rod. A first motor is provided at one end of the screw, a connecting plate is provided at the lower ends of the two sliders, a cylinder is provided at the lower ends of the connecting plate, a collecting box is provided at the lower end of the cylinder, an opening is provided at the upper end of the side wall of the treatment box, a sealing assembly is provided at the upper end of the opening, an aeration device is provided on one side of the treatment box, a connecting pipe is provided at the lower end of the aeration device, an output pipe with an air pump is provided at one end of the connecting pipe, and multiple groups of aeration disks are provided on the output pipe, a stirring assembly is provided at the center of the treatment box, a water inlet pipe is provided on the upper side wall of the treatment box, and a water outlet pipe with a valve is provided at the lower end of the side wall.

[0011] The present invention is further configured as follows: the sealing assembly includes a support frame, an electric push rod and a sealing plate, the support frame is on the upper side wall of the processing box, the electric push rod is on the upper side wall of the support frame, and the sealing plate is at the lower end of the electric push rod. The sealing plate is in contact with the opening and is slidably connected, so that the opening can be quickly opened and closed, and the sealing effect is good.

[0012] The present invention is further configured such that the stirring assembly includes a rotating rod and a stirring rod, the rotating rod is symmetrically arranged in the treatment box, the stirring rod is distributed around the rotating rod, and a driving assembly is provided at one end of the rotating rod, which can fully stir the wastewater in the treatment box, so that the wastewater and the reagent can be mixed more evenly, which helps to flocculate impurities and improve the treatment effect.

[0013] The present invention is further configured as follows: the driving assembly includes a support box, a gear, a connecting chain and a second motor; the support box is on one side of the processing box; the gear is at one end of the rotating rod; the two gears are connected by the connecting chain; the second motor is on the side wall of the support box; one of the rotating rods is connected to the output end of the second motor; the two rotating rods are driven to rotate synchronously by the second motor, the gear and the connecting chain, thereby ensuring efficient operation of the stirring assembly and reducing power loss.

[0014] The present invention is further configured such that the collection box and the cylinder are connected by a detachable snap-fit ​​connection, which facilitates cleaning or replacement of the collection box and saves maintenance time.

[0015] The present invention is further configured such that the side wall of the treatment box is provided with a liquid level scale line, which can visually observe the liquid level height of the wastewater in the box, making it convenient for the operator to adjust water inlet, water outlet and other operations according to the liquid level conditions.

[0016] The present invention is further configured such that support legs are provided at the four corners of the lower end of the processing box, so as to stably support the processing box on the ground.

[0017] (3) Beneficial effects

[0018] Compared with the prior art, the present invention provides an air flotation machine for wastewater treatment and a method of use, which has the following beneficial effects:

[0019] 1. In the symmetrical fixed box on the upper side of the treatment box, the screw and the sliding rod cooperate to form a stable double-track transmission structure. Driven by the first motor, the two sliders move synchronously through the connecting plate, driving the collection box to run smoothly along the horizontal direction of the treatment box, ensuring that it can fully cover the water surface and avoid scum residue. At the same time, the cylinder at the lower end of the connecting plate can flexibly adjust the height of the collection box and accurately control its contact degree with the water surface according to the thickness of the scum. It can not only collect scum efficiently, but also will not disturb the water body due to excessive immersion in the water. This ensures the stability of the flotation effect, can adapt to the scum generated by wastewater of different concentrations, and improves the targetedness and efficiency of collection.

[0020] 2. The collection box and the cylinder are connected by a detachable snap-on connection. The collection box can be quickly disassembled and installed without the help of tools, which improves the continuity of the overall processing flow. The design of the sealing component also takes into account the convenience of operation, realizing the rapid opening and closing of the processing box opening, eliminating the tedious disassembly steps of the traditional sealing structure and reducing the workload of the operator.

[0021] 3. The aeration device is connected to the output pipe with the air pump through a connecting pipe. The multiple sets of aeration disks on the output pipe can evenly release bubbles into the treatment box, providing sufficient attachment carriers for suspended impurities and ensuring the effect of flotation separation.

[0022] 4. The stirring component in the center of the treatment tank can fully stir the wastewater, promote the combination of impurities and bubbles in the water, and at the same time help the possible added chemicals to mix evenly with the wastewater, enhance the flocculation effect, and provide reliable protection for wastewater treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the overall structure of the air flotation machine for wastewater treatment in the present invention;

[0024] Figure 2 This is a second schematic diagram of the overall structure of the air flotation machine for wastewater treatment in the present invention;

[0025] Figure 3 This is a schematic cross-sectional view of a fixing box of an air flotation machine for wastewater treatment in the present invention;

[0026] Figure 4 This is a schematic cross-sectional view of a treatment box for an air flotation machine for wastewater treatment in the present invention;

[0027] Figure 5 This is a schematic diagram of the interior of the support box of the flotation machine for wastewater treatment in the present invention.

[0028] In the figure: 1. Processing box; 2. Fixing box; 3. Screw; 4. Sliding rod; 5. Sliding block; 6. First motor; 7. Connecting plate; 8. Cylinder; 9. Collecting box; 10. Aeration device; 11. Connecting pipe; 12. Air pump; 13. Output pipe; 14. Aeration plate; 15. Water inlet pipe; 16. Water outlet pipe; 17. Support frame; 18. Electric push rod; 19. Sealing plate; 20. Rotating rod; 21. Stirring rod; 22. Support box; 23. Gear; 24. Connecting chain; 25. Second motor; 26. Support leg. DETAILED DESCRIPTION

[0029] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0030] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0031] In the present invention, unless otherwise specified, directions such as "up" and "down" are generally used with respect to the directions shown in the drawings, or with respect to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" are generally used with respect to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0032] See also Figure 1-5 A flotation machine for wastewater treatment includes a treatment box 1, symmetrical fixed boxes 2 are provided at both ends of the upper side of the treatment box 1, and a screw 3 and a sliding rod 4 are respectively provided in the two fixed boxes 2. A fitting slider 5 is provided in each of the fixed boxes 2, one of the sliders 5 is threadedly connected to the screw 3, and the other slider 5 is slidably connected to the sliding rod 4. A first motor 6 is provided at one end of the screw 3, and a connecting plate 7 is provided at the lower end of the two sliders 5. A cylinder 8 is provided at the lower end of the connecting plate 7. A collecting box 9 is provided at the lower end of the cylinder 8, an opening is provided at the upper end of the side wall of the treatment box 1, and a sealing assembly is provided at the upper end of the opening. An aeration device 10 is provided on one side of the treatment box 1, and a connecting pipe 11 is provided at the lower end of the aeration device 10. An output pipe 13 with an air pump 12 is provided at one end of the connecting pipe 11, and multiple groups of aeration disks 14 are provided on the output pipe 13. A stirring assembly is provided at the center of the treatment box 1, a water inlet pipe 15 is provided on the upper side wall of the treatment box 1, and a water outlet pipe 16 with a valve is provided at the lower end of the side wall.

[0033] The sealing assembly includes a support frame 17, an electric push rod 18 and a sealing plate 19. The support frame 17 is on the upper side wall of the processing box 1, the electric push rod 18 is on the upper side wall of the support frame 17, and the sealing plate 19 is at the lower end of the electric push rod 18. The sealing plate 19 is in contact with the opening and is slidably connected.

[0034] The collecting box 9 and the cylinder 8 are connected by a detachable buckle.

[0035] In this embodiment, when wastewater needs to be cleaned, the operator introduces the wastewater to be treated into the treatment box 1 through the water inlet pipe 15 on the upper side wall of the treatment box 1. At this time, the sealing assembly is in the closed state, and the electric push rod 18 drives the sealing plate 19 to fit tightly against the opening at the upper end of the side wall of the treatment box 1 to prevent wastewater from overflowing from the opening during the treatment process, thereby ensuring the sealing of the treatment box 1. Next, the aeration device 10 on one side of the treatment box 1 is activated, and the air pump 12 starts to work, delivering air to the output pipe 13 through the connecting pipe 11. The multiple sets of aeration discs 14 on the output pipe 13 then operate, releasing a large number of bubbles into the wastewater in the treatment box 1. These bubbles will adhere to the suspended impurities in the wastewater, reducing the density of the impurities and gradually floating upward to form scum. At the same time as aeration, the stirring assembly at the center of the treatment box 1 is activated. When the stirring assembly is working, it will stir the wastewater, allowing the wastewater to be fully mixed with any added flocculants and other agents, promoting better coagulation of impurities, facilitating the attachment of bubbles, and improving the flotation effect.

[0036] More specifically, when the scum in the wastewater gathers to a certain extent on the water surface, the scum collection operation begins, and the first motor 6 is started. The first motor 6 drives the screw 3 in the fixed box 2 to rotate. Since one of the sliders 5 is threadedly connected to the screw 3, when the screw 3 rotates, the slider 5 will move along the screw 3. At the same time, the other slider 5 slidably connected to the sliding rod 4 will also slide on the sliding rod 4. The two sliders 5 move synchronously through the connecting plate 7. The cylinder 8 at the lower end of the connecting plate 7 will adjust its length according to the thickness of the scum, and drive the collection box 9 to drop to a suitable position so that it can contact the scum on the water surface. As the slider 5 moves, the collection box 9 moves horizontally above the treatment box 1, and the water The scum on the surface is collected in the box. After the collection is completed, the cylinder 8 contracts, driving the collection box 9 to rise and leave the water surface. At this time, the electric push rod 18 that controls the sealing assembly is shortened, driving the sealing plate 19 to move upward, and opening the processing box 1 is opened. The operator can use the detachable snap connection between the collection box 9 and the cylinder 8 to remove the collection box 9 from the lower end of the cylinder 8 to clean or process the collected scum. After cleaning, the collection box 9 is reinstalled on the cylinder 8 through the snap. The electric push rod 18 extends, driving the sealing plate 19 to descend, closing the opening, and preparing for the next treatment. When the wastewater treatment is completed, the outlet pipe 16 with a valve at the lower end of the side wall of the processing box 1 is opened to discharge the treated clean water.

[0037] See also Figure 1-Figure 5 , as an implementation scheme of the stirring assembly: the stirring assembly includes a rotating rod 20 and a stirring rod 21, the rotating rod 20 is symmetrically arranged in the processing box 1, and the stirring rods 21 are distributed around the rotating rod 20, and a driving assembly is provided at one end of the rotating rod 20, and the driving assembly includes a support box 22, a gear 23, a connecting chain 24 and a second motor 25, the support box 22 is on one side of the processing box 1, the gear 23 is at one end of the rotating rod 20, the two gears 23 are connected by the connecting chain 24, and the second motor 25 is on the side wall of the support box 22, and one of the rotating rods 20 is connected to the output end of the second motor 25.

[0038] Specifically, the driving assembly is started, and the second motor 25 on the side wall of the support box 22 starts to operate, and its output end drives one of the rotating rods 20 connected thereto to rotate. Since a gear 23 is provided at one end of the two rotating rods 20, and the two gears 23 are connected by a connecting chain 24, when one of the rotating rods 20 rotates, the transmission action of the gear 23 and the connecting chain 24 will drive the other rotating rod 20 to rotate synchronously. The two rotating rods 20 are symmetrically arranged in the treatment box 1. During their rotation, the stirring rods 21 distributed around the rotating rods 20 rotate accordingly. When the stirring rods 21 rotate, they will stir the wastewater in the treatment box 1, so that the wastewater forms a circulation. In this way, not only can the bubbles released by the aeration device 10 be distributed more evenly in the wastewater, avoiding the bubbles from being concentrated in a certain area, but also the suspended impurities in the wastewater can be fully contacted with the bubbles, thereby improving the adsorption efficiency of the bubbles on the impurities.

[0039] See also Figure 1-Figure 5 As an implementation of the liquid level scale line: the side wall of the processing box 1 is provided with a liquid level scale line.

[0040] Specifically, as wastewater enters treatment tank 1 through inlet pipe 15, operators can visually observe water level changes via the liquid level scale lines on the sidewall of treatment tank 1. As wastewater continues to flow in, the water level gradually rises. Operators use the scale lines to monitor the progress of water inflow, preventing the water level from being too high and overflowing treatment tank 1, or too low and affecting the normal operation of subsequent processes such as aeration and mixing.

[0041] See also Figure 1-Figure 5 As an implementation of the support legs 26 : support legs 26 are provided at the four corners of the lower end of the processing box 1 .

[0042] Specifically, the supporting legs 26 at the four corners of the lower end of the treatment box 1 will lift the entire equipment, so that the bottom of the treatment box 1 maintains a certain distance from the ground, which can avoid direct contact between the treatment box 1 and the ground, and reduce the erosion of the bottom of the treatment box 1 by ground moisture and accumulated water. Especially in the humid sewage treatment workshop environment, it can effectively delay the rust and aging of the equipment and extend its service life.

[0043] The present invention also includes a method for using an air flotation machine for wastewater treatment. When the entire device is in use:

[0044] The wastewater to be treated is introduced into the treatment box 1 through the water inlet pipe 15 on the upper side wall of the treatment box 1. The operator controls the water inlet speed and amount by observing the liquid level scale line on the side wall of the treatment box 1. When the water level reaches the preset height, the water inlet is stopped.

[0045] The aeration device 10 on one side of the treatment box 1 is started (this is a mature technology well known to technicians and will not be described in detail in this article), and the air pump 12 starts working, transporting the outside air to the output pipe 13 through the connecting pipe 11. The multiple groups of aeration disks 14 on the output pipe 13 release a large number of tiny bubbles into the wastewater in the treatment box 1.

[0046] During aeration, the driving assembly of the stirring assembly is started, and the second motor 25 on the side wall of the support box 22 is running. Its output end drives a rotating rod 20 connected to it to rotate. Since the gears 23 at one end of the two rotating rods 20 are connected by a connecting chain 24, the other rotating rod 20 also rotates synchronously. The stirring rods 21 around the rotating rod 20 rotate with the rotating rod 20 to stir the wastewater in the treatment box 1. As aeration and stirring continue, a large number of bubbles absorb pollutants and continue to float up, gradually gathering on the water surface to form a certain thickness of scum.

[0047] When the scum thickness reaches the collection requirement, the first motor 6 is started, and the first motor 6 drives the screw 3 in the fixed box 2 to rotate. The slider 5 threadedly connected to the screw 3 moves along the screw 3 under the action of the screw 3. At the same time, the other slider 5 slidingly connected to the sliding rod 4 also slides on the sliding rod 4. The two sliders 5 move synchronously through the connecting plate 7. The cylinder 8 at the lower end of the connecting plate 7 adjusts its length according to the scum thickness (through observation or preset program), driving the collecting box 9 to descend to a suitable height in contact with the scum. As the slider 5 moves, the collecting box 9 moves horizontally above the processing box 1 to scrape the scum on the water surface into the box.

[0048] After the scum is collected, the cylinder 8 contracts, driving the collection box 9 to rise out of the water surface, and the first motor 6 drives the collection box 9 to the opening. At this time, the electric push rod 18 that controls the sealing assembly is shortened, driving the sealing plate 19 to move upward, opening the opening of the processing box 1, and the operator removes the collection box 9 through the detachable snap connection between the collection box 9 and the cylinder 8, cleans the scum in the box, and reinstalls the collection box 9 on the cylinder 8 after cleaning. The electric push rod 18 extends, driving the sealing plate 19 to descend, and closes the opening.

[0049] After the scum is collected and cleaned, the outlet pipe 16 with a valve at the lower end of the side wall of the treatment box 1 is opened, and the treated clean water is discharged through the outlet pipe 16.

[0050] In all the solutions mentioned above, the connection between two components can be selected according to actual conditions by welding, bolt and nut connection, bolt or screw connection or other well-known connection methods, which will not be described in detail here. In the above, whenever there is a fixed connection, welding is preferably considered. Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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.

[0051] In all the schemes mentioned above, the operation of electrical components is controlled by controllers. Since the devices matched with the controllers are commonly used devices, their control principles and line connections are all well-known and mature technologies. Their electrical connection relationships and specific circuit structures will not be described in detail here.

Claims

1. A flotation machine for wastewater treatment, comprising a treatment box (1), characterized in that: Symmetrical fixing boxes (2) are provided at both ends of the upper side of the processing box (1), and a screw (3) and a sliding rod (4) are respectively provided in the two fixing boxes (2). Fitted sliders (5) are provided in each of the fixing boxes (2), one of the sliders (5) is threadedly connected to the screw (3), and the other slider (5) is slidably connected to the sliding rod (4). A first motor (6) is provided at one end of the screw (3), and a connecting plate (7) is provided at the lower end of the two sliders (5). A cylinder (8) is provided at the lower end of the connecting plate (7). A collecting box (9) is provided. An opening is provided at the upper end of the side wall of the treatment box (1). A sealing component is provided at the upper end of the opening. An aeration device (10) is provided on one side of the treatment box (1). A connecting pipe (11) is provided at the lower end of the aeration device (10). An output pipe (13) with an air pump (12) is provided at one end of the connecting pipe (11). Multiple groups of aeration discs (14) are provided on the output pipe (13). A stirring component is provided at the center of the treatment box (1). A water inlet pipe (15) is provided on the upper side wall of the treatment box (1), and a water outlet pipe (16) with a valve is provided at the lower end of the side wall.

2. The air flotation machine for wastewater treatment according to claim 1, characterized in that: The sealing assembly includes a support frame (17), an electric push rod (18) and a sealing plate (19), wherein the support frame (17) is on the upper side wall of the processing box (1), the electric push rod (18) is on the upper side wall of the support frame (17), and the sealing plate (19) is at the lower end of the electric push rod (18), and the sealing plate (19) is in contact with the opening and is slidably connected.

3. The air flotation machine for wastewater treatment according to claim 1, wherein: The stirring assembly comprises a rotating rod (20) and a stirring rod (21), wherein the rotating rod (20) is symmetrically arranged in the processing box (1), and the stirring rods (21) are distributed around the rotating rod (20), and a driving assembly is provided at one end of the rotating rod (20).

4. The air flotation machine for wastewater treatment according to claim 3, characterized in that: The driving assembly comprises a supporting box (22), a gear (23), a connecting chain (24) and a second motor (25), wherein the supporting box (22) is located on one side of the processing box (1), the gear (23) is located at one end of the rotating rod (20), the two gears (23) are connected by the connecting chain (24), the second motor (25) is located on the side wall of the supporting box (22), and one of the rotating rods (20) is connected to the output end of the second motor (25).

5. The air flotation machine for wastewater treatment according to claim 2, characterized in that: The collecting box (9) and the cylinder (8) are connected in a detachable snap-fit ​​manner.

6. The air flotation machine for wastewater treatment according to claim 1, characterized in that: The side wall of the processing box (1) is provided with a liquid level scale line.

7. The air flotation machine for wastewater treatment according to claim 1, characterized in that: Support legs (26) are provided at the four corners of the lower end of the processing box (1).

8. The present invention also includes a method for using an air flotation machine for wastewater treatment, which is characterized by: The following steps are involved: The wastewater to be treated is introduced into the treatment box (1) through the water inlet pipe (15) on the upper side wall of the treatment box (1). The operator controls the water inlet speed and water inlet amount by observing the liquid level scale line on the side wall of the treatment box (1). When the water level reaches a preset height, the water inlet is stopped. The aeration device (10) on one side of the treatment box (1) is started, and the air pump (12) starts to work, and the outside air is transported to the output pipe (13) through the connecting pipe (11). The multiple groups of aeration discs (14) on the output pipe (13) release a large number of tiny bubbles into the wastewater in the treatment box (1); During aeration, the driving assembly of the stirring assembly is started, and the second motor (25) on the side wall of the support box (22) is operated. The output end of the motor drives a rotating rod (20) connected thereto to rotate. Since the gears (23) at one end of the two rotating rods (20) are connected by a connecting chain (24), the other rotating rod (20) also rotates synchronously. The stirring rods (21) around the rotating rod (20) rotate with the rotating rod (20) to stir the wastewater in the treatment box (1). As aeration and stirring continue, a large number of bubbles absorb pollutants and continuously float up, gradually gathering on the water surface to form a certain thickness of scum. When the scum thickness reaches the collection requirement, the first motor (6) is started, and the first motor (6) drives the screw (3) in the fixed box (2) to rotate. The slider (5) threadedly connected to the screw (3) moves along the screw (3) under the action of the screw (3), and at the same time, another slider (5) slidably connected to the sliding rod (4) also slides on the sliding rod (4). The two sliders (5) move synchronously through the connecting plate (7). The cylinder (8) at the lower end of the connecting plate (7) adjusts its length according to the scum thickness, and drives the collection box (9) to descend to a suitable height for contacting the scum. As the slider (5) moves, the collection box (9) moves horizontally above the processing box (1) to scrape the scum on the water surface into the box. After the scum is collected, the cylinder (8) contracts, driving the collection box (9) to rise and leave the water surface, and the first motor (6) drives the collection box (9) to the opening. At this time, the electric push rod (18) controlling the sealing assembly is shortened, driving the sealing plate (19) to move upward, opening the opening of the processing box (1). The operator removes the collection box (9) through the detachable buckle connection between the collection box (9) and the cylinder (8), cleans the scum in the box, and reinstalls the collection box (9) on the cylinder (8) after cleaning. The electric push rod (18) extends, driving the sealing plate (19) to descend, closing the opening; After the scum is collected and cleaned, the outlet pipe (16) with a valve at the lower end of the side wall of the treatment box (1) is opened, and the treated clean water is discharged through the outlet pipe (16).

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