Follow-up efficient air flotation wastewater treatment device

Abstract

The utility model relates to the technical field of wastewater treatment, and discloses a follow-up efficient air floatation wastewater treatment device which comprises a device main body, a treatment tank cavity is arranged in the device main body, and a back pressure control valve is fixedly connected to the outer surface of the device main body. According to the utility model, through the backpressure control valve and the flotation cleaning assembly, the input end of the backpressure control valve is connected with and receives high-pressure dissolved air water, and the dissolved air water is suddenly decompressed at the water inlet end of the backpressure control valve to release a large number of micron-sized bubbles; the bubbles are discharged through the bottom of the dispersion well, are in contact with solid pollutants in a treatment tank cavity, are attached with suspended solids to form a scum layer and quickly float to the water surface, scum is collected through a floating cleaning frame, a floater baffle and an effluent receiving disc, and a sludge shovel arm is combined with a sludge discharge auger to perform anti-blocking discharge and removal of precipitated sludge and scraped slag. Efficient separation of light solids is effectively achieved, and the treatment effect is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a follow-up high-efficiency air flotation wastewater treatment device. Background Technology

[0002] The primary purpose of wastewater treatment is to protect water resources. By treating harmful substances in wastewater, pollution of water sources can be reduced, damage to aquatic ecosystems can be prevented, and the quality of drinking water and agricultural water can be ensured. Wastewater treatment equipment is used in wastewater treatment.

[0003] Wastewater treatment equipment is a device used to filter and purify wastewater discharged from industries such as industry and agriculture, as well as wastewater generated by human activities such as sewers.

[0004] Although the wastewater treatment devices mentioned above achieve the purification of wastewater, when used for solid-liquid separation of light solids such as oil, algae, and fibers, they are prone to causing excessive scum filtration and clogging, requiring manual cleaning, which affects the treatment efficiency and is inconvenient to use. Therefore, a follow-up high-efficiency air flotation wastewater treatment device is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a follow-up high-efficiency air flotation wastewater treatment device, which aims to solve the problem that in the existing technology, when used for solid-liquid separation of light solids such as oil, algae, and fibers, excessive scum filtration can easily cause blockages that require manual cleaning, thus affecting the treatment efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a follow-up high-efficiency air flotation wastewater treatment device, comprising a device body, an internal treatment tank cavity, a back pressure control valve fixedly connected to the outer surface of the device body, a dispersion well fixedly connected to the end of the back pressure control valve extending into the internal treatment tank cavity, an effluent receiving plate fixedly connected to the top of the device body, an annular guide seat fixedly connected to the inner surface of the effluent receiving plate near the treatment tank cavity, a V-groove baffle fixedly connected to the inner wall of the annular guide seat, a sludge discharge pipe fixedly connected to the outer surface of the effluent receiving plate, a maintenance ladder provided between the device body and the upper surface of the effluent receiving plate, a drive motor fixedly connected to the upper surface of the maintenance ladder, and a flotation cleaning assembly provided between the drive motor, the dispersion well, and the sludge discharge pipe;

[0007] The flotation cleaning assembly includes a rotating shaft, the top end of which is fixedly connected to the output end of the bottom of the drive motor. A floating impeller is fixedly sleeved on the outer periphery of the rotating shaft. A floating rod arm is fixedly connected to the upper surface of the floating impeller. A floating cleaning frame is sleeved and connected to the outer end of the floating impeller. A float baffle is fixedly connected to the outer wall of the floating cleaning frame. A connecting frame is fixedly connected to the outer wall of the float baffle. A scraper is fixedly connected to the bottom end of the connecting frame.

[0008] As a further description of the above technical solution:

[0009] The lower surface of the floating impeller is attached to the upper surface of the dispersion well.

[0010] As a further description of the above technical solution:

[0011] The floating booms are arranged in a ring, and an oil skimmer is fixedly connected to the lower surface of each of the four floating booms near the floating impeller.

[0012] As a further description of the above technical solution:

[0013] A sludge shovel arm is fixedly connected to the outer periphery of the rotating shaft, and the bottom end of the sludge shovel arm is fitted against the inner wall of the treatment tank cavity.

[0014] As a further description of the above technical solution:

[0015] A sludge discharge auger is fixedly connected to the bottom of the outer periphery of the rotating shaft, and the outer wall of the sludge discharge auger is fitted to the inner wall of the sludge discharge pipe.

[0016] As a further description of the above technical solution:

[0017] An effluent collection groove is provided between the effluent receiving tray and the annular guide seat, and the outer wall of the scraper is adapted to the inner wall size of the effluent collection groove.

[0018] As a further description of the above technical solution:

[0019] The outer edge of the upper surface of the annular guide seat has a sloping structure.

[0020] As a further description of the above technical solution:

[0021] The upper surface of the V-shaped groove retainer is provided with several V-shaped groove weirs distributed in a ring.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, through a back pressure control valve and a flotation cleaning assembly, the input end of the back pressure control valve is connected to receive high-pressure dissolved air water. The dissolved air water is suddenly depressurized at the inlet end of the back pressure control valve, releasing a large number of micron-sized bubbles. These bubbles are discharged through the bottom of the dispersion well and come into contact with solid pollutants in the treatment tank cavity, attaching to the suspended solids to form a scum layer, which quickly floats to the water surface. The scum is collected by a floating cleaning frame, a float baffle, and an effluent receiving tray. The sludge is scraped and discharged by a sludge scraper arm combined with a sludge discharge auger to prevent blockage and remove the sludge, effectively achieving efficient separation of light solids and significantly improving the treatment effect.

[0024] 2. In this utility model, through the sewage pipe, connecting frame, and scraper, and by using the scraper installed on the connecting frame through the outer wall of the sewage pipe and the float baffle, the scum in the effluent collection tank between the effluent receiving plate and the annular guide seat can be easily and automatically cleaned, thereby improving the wastewater scum treatment efficiency. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a follow-up high-efficiency air flotation wastewater treatment device proposed in this utility model.

[0026] Figure 2 This utility model provides a schematic diagram of the internal structure of the main body, effluent receiving plate, annular guide seat, and sewage pipe of a follow-up high-efficiency air flotation wastewater treatment device.

[0027] Figure 3 This utility model provides a schematic diagram of the internal structure of the main body, sludge discharge pipe, effluent receiving plate, annular guide seat, V-groove baffle, and sewage discharge pipe of a follow-up high-efficiency air flotation wastewater treatment device.

[0028] Figure 4 This is a schematic diagram of the drive motor, flotation cleaning components, connecting frame, and scraper structure of a follow-up high-efficiency air flotation wastewater treatment device proposed in this utility model.

[0029] Legend:

[0030] 1. Main body of the device; 2. Treatment tank chamber; 3. Back pressure control valve; 4. Dispersion well; 5. Sludge discharge pipe; 6. Effluent receiving tray; 7. Annular guide seat; 8. V-groove baffle; 9. Sewage discharge pipe; 10. Maintenance ladder; 11. Drive motor; 12. Flotation cleaning assembly; 121. Rotating shaft; 122. Floating impeller; 123. Floating rod arm; 124. Skimmer; 125. Floating cleaning frame; 126. Float baffle; 127. Sludge shovel arm; 128. Sludge discharge auger; 13. Connecting frame; 14. Scraper. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figures 2-4 This utility model provides an embodiment of a follow-up high-efficiency air flotation wastewater treatment device, comprising a device body 1, a treatment tank 2 inside the device body 1, and a back pressure control valve 3 fixedly connected to the outer surface of the device body 1. The input end of the back pressure control valve 3 is connected to the output end of a high-pressure saturation tank of an external device. Air dissolves in liquid in the high-pressure saturation tank to form high-pressure dissolved air water, which is transported to the back pressure control valve 3 through a pipeline. The end of the back pressure control valve 3 extends into the interior of the treatment tank 2 and is fixedly connected to a colored... The dispersion well 4 is connected to the top of the main body 1 of the device with an effluent receiving plate 6. A maintenance ladder 10 is provided between the main body 1 and the upper surface of the effluent receiving plate 6. A drive motor 11 is fixedly connected to the upper surface of the maintenance ladder 10. A flotation cleaning assembly 12 is provided between the drive motor 11, the dispersion well 4, and the sludge discharge pipe 5. The flotation cleaning assembly 12 includes a rotating shaft 121. The top of the rotating shaft 121 is fixedly connected to the output end of the bottom of the drive motor 11. A floating impeller 122 is fixedly sleeved on the outer periphery of the rotating shaft 121. The lower surface of the floating impeller 122 is attached to the upper surface of the dispersion well 4. A floating rod arm 123 is fixedly connected to the upper surface of the floating impeller 122. Four floating rod arms 123 are arranged in a ring, and an oil skimmer 124 is fixedly connected to the lower surface of the four floating rod arms 123 near the floating impeller 122. A floating cleaning frame 125 is sleeved and connected to the outer end of the floating impeller 122. A float baffle 126 is fixedly connected to the outer wall of the floating cleaning frame 125. A sludge shovel arm 127 is fixedly connected to the outer periphery of the rotating shaft 121. The bottom end of the sludge shovel arm 127 is fitted against the inner wall of the treatment tank cavity 2. A sludge shovel arm 127 is fixedly connected to the bottom end of the outer periphery of the rotating shaft 121. The sludge discharge auger 128 is attached to the inner wall of the sludge discharge pipe 5. The dissolved air water is suddenly depressurized at the back pressure control valve 3 at the inlet end, releasing a large number of micron-sized bubbles. These bubbles are discharged through the bottom of the dispersion well 4 and come into contact with the solid pollutants in the treatment tank chamber 2, attaching to the suspended solids and forming a scum layer that quickly floats to the water surface. Finally, the floating cleaning frame 125 driven by the drive motor 11 and the float baffle 126 are combined with the effluent receiving plate 6 to collect the scum. At the same time, the sludge scraper arm 127 is combined with the sludge discharge auger 128 to scrape and remove the sedimented sludge to prevent blockage.

[0033] Reference Figures 1-3An annular guide seat 7 is fixedly connected to the inner surface of the effluent receiving plate 6 near the treatment tank cavity 2. The outer edge of the upper surface of the annular guide seat 7 has a sloping structure. An effluent collection trough is provided between the effluent receiving plate 6 and the annular guide seat 7. The outer wall of the scraper 14 is adapted to the inner wall size of the effluent collection trough. A V-shaped groove baffle 8 is fixedly connected to the inner wall of the annular guide seat 7. Several V-shaped groove weirs are distributed in a ring on the upper surface of the V-shaped groove baffle 8. A sewage pipe 9 is fixedly connected to the outer surface of the effluent receiving plate 6. A connecting frame 13 is fixedly connected to the outer wall of the float baffle 126. A scraper 14 is fixedly connected to the bottom end of the connecting frame 13. Through the sewage pipe 9 and the outer wall of the float baffle 126, and the scraper 14 installed by the connecting frame 13, it is convenient to automatically push, empty and clean the scum inside the effluent collection trough between the effluent receiving plate 6 and the annular guide seat 7.

[0034] Working principle: During use, the input end of the back pressure control valve 3 is connected to the output end of the high pressure saturation tank of the external equipment. Air dissolves in the liquid in the high pressure saturation tank to form high pressure dissolved air water, which is transported to the back pressure control valve 3 through the pipeline. The dissolved air water is suddenly depressurized at the inlet end of the back pressure control valve 3, releasing a large number of micron-sized bubbles. These bubbles are discharged through the bottom of the dispersion well 4, come into contact with solid pollutants in the treatment tank chamber 2 and attach to the suspended solids, forming a scum layer that quickly floats to the water surface. The scum is collected by the floating cleaning frame 125 driven by the drive motor 11 and the float baffle 126 in combination with the effluent receiving tray 6. The scum collected in the scum collection trough between the effluent receiving tray 6 and the annular guide seat 7 can be automatically pushed and cleaned by the scraper 14 installed on the outer wall of the drain pipe 9 and the float baffle 126. In addition, the sludge scraper arm 127 and the sludge discharge auger 128 work together to regularly perform anti-clogging and cleaning treatment of the sedimented sludge scraping.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A follow-up high-efficiency air flotation wastewater treatment device, comprising a main body (1), characterized in that: The device body (1) has a treatment tank cavity (2) inside. A back pressure control valve (3) is fixedly connected to the outer surface of the device body (1). A dispersion well (4) is fixedly connected to the end of the back pressure control valve (3) extending into the interior of the treatment tank cavity (2). An effluent receiving plate (6) is fixedly connected to the top of the device body (1). An annular guide seat (7) is fixedly connected to the inner surface of the effluent receiving plate (6) on the side close to the treatment tank cavity (2). A V-groove baffle (8) is fixedly connected to the inner wall of the annular guide seat (7). A sewage pipe (9) is fixedly connected to the outer surface of the effluent receiving plate (6). A maintenance ladder (10) is provided between the device body (1) and the upper surface of the effluent receiving plate (6). A drive motor (11) is fixedly connected to the upper surface of the maintenance ladder (10). A flotation cleaning assembly (12) is provided between the drive motor (11), the dispersion well (4), and the sludge discharge pipe (5). The flotation cleaning assembly (12) includes a rotating shaft (121), the top end of which is fixedly connected to the output end of the bottom of the drive motor (11). A floating impeller (122) is fixedly sleeved on the outer periphery of the rotating shaft (121). A floating rod arm (123) is fixedly connected to the upper surface of the floating impeller (122). A floating cleaning frame (125) is sleeved and connected to the end of the outer periphery of the floating impeller (122). A float baffle (126) is fixedly connected to the outer wall of the floating cleaning frame (125). A connecting frame (13) is fixedly connected to the outer wall of the float baffle (126). A scraper (14) is fixedly connected to the bottom end of the connecting frame (13).

2. The follow-up high-efficiency air flotation wastewater treatment device according to claim 1, characterized in that: The lower surface of the floating impeller (122) is attached to the upper surface of the dispersion well (4).

3. The follow-up high-efficiency air flotation wastewater treatment device according to claim 1, characterized in that: The floating booms (123) are arranged in a ring, and the lower surface of the four floating booms (123) is fixedly connected to the side of the floating impeller (122) with an oil skimmer (124).

4. The follow-up high-efficiency air flotation wastewater treatment device according to claim 1, characterized in that: The outer periphery of the rotating shaft (121) is fixedly connected to a sludge shovel arm (127), and the bottom end of the sludge shovel arm (127) is fitted into the inner wall of the treatment tank cavity (2).

5. The follow-up high-efficiency air flotation wastewater treatment device according to claim 1, characterized in that: The bottom of the outer periphery of the rotating shaft (121) is fixedly connected to a mud discharge auger (128), and the outer wall of the mud discharge auger (128) is attached to the inner wall of the mud discharge pipe (5).

6. The follow-up high-efficiency air flotation wastewater treatment device according to claim 1, characterized in that: An effluent collection groove is provided between the effluent receiving plate (6) and the annular guide seat (7), and the outer wall of the scraper (14) is adapted to the inner wall size of the effluent collection groove.

7. The follow-up high-efficiency air flotation wastewater treatment device according to claim 1, characterized in that: The outer edge of the upper surface of the annular guide (7) has a sloping structure.

8. The follow-up high-efficiency air flotation wastewater treatment device according to claim 1, characterized in that: The upper surface of the V-shaped groove retainer (8) is provided with several V-shaped groove weirs distributed in a ring.

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