A floating sewage treatment decanter

Abstract

This utility model provides a floating wastewater treatment decanter, relating to the field of decanters, comprising: an outlet pipe, one end of which is connected to a collecting pipe, and the other end of the collecting pipe is connected to a bend, and the other end of the bend is connected to a corrugated pipe. A guide rod is provided on the inner side of the corrugated pipe, and an inlet pipe is connected to the outer end of the corrugated pipe. A decanting pipe is connected to the outer end of the inlet pipe. An air pipe and a float are connected to the upper end of the inlet pipe. A filter assembly is provided on the inner side of the decanting pipe, and the filter assembly includes a connector plate. Two sets of filter screens are provided inside the connector plate. A valve is provided at the inlet of the decanting pipe. This utility model facilitates quick disassembly and cleaning of the filter screens and allows for real-time adjustment of the flow rate and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of decanter technology, specifically to a floating sewage treatment decanter. Background Technology

[0002] A decanter is a device used in the SBR process to periodically remove clarified water. It can decant clarified water from the surface of a still tank without disturbing the sediment, thus ensuring the quality of the effluent. It is suitable for SBR processes such as CASS, CAST, ICEAS, and DAT-IAT to treat municipal sewage and industrial wastewater.

[0003] A search revealed existing technology (publication number: CN221370831U), which describes "a floating decanter for sewage treatment, aiming to solve the technical problem that current decanters require tools to loosen and disassemble the corresponding bolts when replacing the float, resulting in inconvenient operation. It includes a drain pipe, an outlet pipe, and an electric push rod body. The outlet end of the drain pipe and the inlet end of the outlet pipe are rotatably connected by a shaft bracket. The extension end of the electric push rod body is rotatably connected to the drain pipe by a bushing bracket. The inlet end of the drain pipe is rotatably provided with a water collection trough. It also includes a float and a limiting structure. Both ends of the float are connected to both ends of the water collection trough via connecting structures. The positioning part of the connecting structure abuts against the end of the float. Two limiting structures are respectively arranged at the top of both ends of the water collection trough. This utility model has the advantages of using a pulling method to position or loosen the float, simple operation, and quick replacement and installation of the float."

[0004] While existing floating decanters for wastewater treatment facilitate float replacement, they still have some shortcomings: Firstly, existing floating decanters draw and transport clear water from the upper layer of the sedimentation tank. However, some floating debris inevitably remains on the surface of this upper layer. Although existing decanters have a filtration structure, long-term clogging makes them difficult to disassemble and clean, thus affecting the device's efficiency. Secondly, existing decanters generally do not have adjustable flow rates and efficiency for drawing clear water, making them unsuitable for various wastewater treatment scenarios. For example, they may require rapid flow and efficiency of drawing clear water, facilitating the subsequent treatment of bottom sludge after water transport, thereby improving the efficiency of re-injection into wastewater treatment. Utility Model Content

[0005] To overcome the shortcomings of the existing technology, a floating wastewater treatment decanter is provided to solve the problems mentioned in the background.

[0006] To achieve the above objectives, a floating wastewater treatment decanter is provided, comprising: an outlet pipe, one end of which is connected to a collecting pipe, and the other end of which is connected to a bend, and the other end of which is connected to a corrugated pipe; a guide rod is provided on the inner side of the corrugated pipe, and an inlet pipe is connected to the outer end of the corrugated pipe, and a decanting pipe is connected to the outer end of the inlet pipe; an air pipe and a float are connected to the upper end of the inlet pipe; a filter assembly is provided on the inner side of the decanting pipe, and the filter assembly includes a plug-in plate, and two sets of filter screens are provided inside the plug-in plate; and a valve is provided at the inlet of the decanting pipe.

[0007] Furthermore, a gate is connected to the outlet pipe, and the outlet pipe and the collecting pipe are connected in a T-shape.

[0008] Furthermore, three sets of bends are connected to one side of the collecting pipe, and each set of bends is connected to a limiting plate, with a support rod connected to one end of the limiting plate.

[0009] Furthermore, the lower end of the guide rod is rotatably connected to the support rod, and the corrugated pipe is sleeved on the outside of the guide rod, while the upper end of the guide rod is connected to the decanting pipe.

[0010] Furthermore, one end of the air tube is connected to the inside of the water inlet pipe, and the other end of the air tube is placed above the water surface.

[0011] Furthermore, the decanting pipe is a square pipe, and the opposite pipe walls of the square pipe have through holes, and the plug plate is slidably inserted through the decanting pipe.

[0012] Furthermore, the plug-in plate has two mounting slots inside, and the upper side of the mounting slots is provided with a positioning slot with a stepped structure. The outer end of the plug-in plate is provided with a limiting block, and the outer end of the limiting block is connected to an end plate.

[0013] Furthermore, the upper side of the filter plate is provided with a solid plate, and the two ends of the solid plate are provided with positioning blocks, and the upper side of the solid plate is provided with a groove.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. By utilizing the plug-in plate included in the filter assembly, the filter screen inside the plug-in plate can filter and intercept floating matter on the surface of the clear water entering the decanting pipe when the valve is opened. When the filter screen becomes contaminated and clogged after long-term use, the plug-in plate can be pulled out through the end plate, allowing another filter screen to be pulled into the decanting pipe. The pulled-out filter screen can then be removed from the mounting slot of the plug-in plate through the groove, thus achieving replacement or cleaning, and facilitating the cleaning of the filter screen.

[0016] 2. With the valves and gates open, the supernatant water enters the inlet pipe through the decanting pipe, then flows through the corrugated pipe and bend into the collecting pipe, and finally exits through the outlet pipe. As the water level drops, the float descends with the liquid level, ensuring the decanting pipe maintains a consistent liquid level for continuous decanting. To accelerate decanting, the other two sets of decanting pipes can be opened, allowing all three sets to operate simultaneously, enabling rapid extraction of supernatant water and improving the overall efficiency of wastewater treatment. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of an embodiment of the present utility model.

[0018] Figure 2 This is a top view of an embodiment of the present invention.

[0019] Figure 3 This is an embodiment of the present utility model. Figure 2 Schematic diagram of the structure at point A in the middle.

[0020] Figure 4 This is a front view cross-sectional structural diagram of the plug-in board according to an embodiment of the present utility model.

[0021] In the diagram: 1. Outlet pipe; 2. Gate; 3. Collecting pipe; 4. Air pipe; 5. Float; 6. Inlet pipe; 61. Decanting pipe; 7. Filter assembly; 70. Connecting plate; 71. End plate; 72. Limiting block; 73. Valve; 74. Mounting groove; 75. Filter screen plate; 76. Positioning groove; 77. Positioning block; 78. Groove; 8. Guide rod; 9. Corrugated pipe; 10. Support rod; 11. Limiting plate; 12. Bend. Detailed Implementation

[0022] 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.

[0023] Reference Figures 1 to 4As shown, this utility model provides a floating sewage treatment decanter, including: an outlet pipe 1, one end of which is connected to a collecting pipe 3, and the other end of the collecting pipe 3 is connected to a bend 12, and the other end of the bend 12 is connected to a corrugated pipe 9. A guide rod 8 is provided on the inner side of the corrugated pipe 9, and an inlet pipe 6 is connected to the outer end of the corrugated pipe 9. A decanting pipe 61 is connected to the outer end of the inlet pipe 6. An air pipe 4 and a float 5 are connected to the upper end of the inlet pipe 6. A filter assembly 7 is provided on the inner side of the decanting pipe 61. The filter assembly 7 includes a plug plate 70, and the plug plate 70 has two sets of filter screens 75 inside. A valve 73 is provided at the opening of the decanting pipe 61. The plug plate 70 has two mounting grooves 74 inside, and the upper side of the mounting grooves 74 has a positioning groove 76 with a stepped structure. The outer end of the plug plate 70 has a limiting block 72, and the outer end of the limiting block 72 is connected to an end plate 71. The upper side of the filter screen 75 has a solid plate, and the two ends of the solid plate have positioning blocks 77. The upper side of the solid plate has a groove 78.

[0024] In this embodiment, the outlet pipe 1, the collecting pipe 3, the float 5, the inlet pipe 6, the filter assembly 7, the guide rod 8, and the corrugated pipe 9 constitute the main structure of the floating sewage treatment decanter involved in this application.

[0025] Specifically, the outer port of the outlet pipe 1 is installed on the outer wall of the sedimentation tank, and a support frame is provided at the bottom of the collecting pipe 3 to fix it to the bottom of the sedimentation tank.

[0026] Specifically, the upper end of the corrugated pipe 9 is connected to the water inlet pipe 6, and the lower end of the corrugated pipe 9 is connected to the bend pipe 12.

[0027] Specifically, the buoyancy setting of the float 5 allows the water inlet pipe 6 to float on the surface of the water.

[0028] Specifically, the limiting block 72 and the positioning groove 76 are matched and plugged in, and the inner wall of the groove 78 is provided with an elliptical groove to facilitate the finger pulling out the filter plate 75.

[0029] like Figures 1 to 3 In the middle, a gate 2 is connected to the outlet pipe 1, and the outlet pipe 1 and the collecting pipe 3 are connected in a T-shape. Three sets of bends 12 are connected to one side of the collecting pipe 3, and each set of bends 12 is connected to a limit plate 11. One end of the limit plate 11 is connected to a support rod 10. The lower end of the guide rod 8 is rotatably connected to the support rod 10, and the corrugated pipe 9 is sleeved on the outside of the guide rod 8. The upper end of the guide rod 8 is connected to the decanting pipe 61. One end of the air pipe 4 is connected to the inside of the inlet pipe 6, and the other end of the air pipe 4 is placed on the upper side of the water surface. The decanting pipe 61 is a square pipe, and the opposite pipe wall of the square pipe has a through hole. The plug plate 70 is slidably inserted through the decanting pipe 61.

[0030] Specifically, the connection between the manifold 3 and the bend 12 is set to at least three sets, which facilitates the selective opening and closing of the decanting pipe 61 in different needs, thereby adjusting the real-time flow rate and efficiency of the decanting.

[0031] Specifically, when the water level drops, the guide rod 8 and the support rod 10 are hinged together, causing the inlet pipe 6 to move downward in sync with the water level.

[0032] Specifically, the upper and lower ends of the plug plate 70 are provided with sealing rings. After the plug plate 70 is plugged into the decanting pipe 61, the sealing rings can seal the through holes opened in the decanting pipe 61.

[0033] In use, the plug-in plate included in the filter assembly allows the filter screen inside the plug-in plate to filter and trap floating debris on the surface of the clear water entering the decanting pipe when the valve is opened. When the filter screen becomes clogged after prolonged use, the plug-in plate can be pulled out via the end plate, allowing another filter screen to be pulled into the decanting pipe. The pulled-out filter screen can then be removed from the mounting slot of the plug-in plate through the groove, enabling replacement or cleaning, thus facilitating filter cleaning. With the valves and gates open, the supernatant flows through the decanting pipe into the inlet pipe, then through the corrugated pipe and bend into the collecting pipe, and finally out through the outlet pipe. As the water level drops, the float descends with the liquid level, ensuring the decanting pipe maintains a consistent liquid level for continuous decanting. To accelerate decanting, the other two decanting pipes can be opened, allowing all three sets to operate simultaneously, enabling rapid extraction of supernatant and improving the overall efficiency of wastewater treatment.

[0034] The floating wastewater decanter of this invention can effectively solve the problems mentioned in the background technology. Based on the existing floating wastewater decanter technology, it can facilitate the quick disassembly and cleaning of the filter screen and adjust the real-time flow rate and efficiency.

[0035] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A floating sewage treatment decanter comprising: The water outlet pipe (1) is characterized in that: one end of the water outlet pipe (1) is connected to a collecting pipe (3), and the other end of the collecting pipe (3) is connected to a bend pipe (12), and the other end of the bend pipe (12) is connected to a corrugated pipe (9). The corrugated pipe (9) is provided with a guide rod (8) on its inner side, and the corrugated pipe (9) is connected to an inlet pipe (6) on its outer side, and the inlet pipe (6) is connected to a decanting pipe (61) on its outer side. At the same time, the upper end of the inlet pipe (6) is connected to an air pipe (4) and a float (5). The decanting pipe (61) is provided with a filter assembly (7) on its inner side, and the filter assembly (7) includes a plug plate (70), and the plug plate (70) is provided with two sets of filter screens (75) inside, and a valve (73) is provided at the opening of the decanting pipe (61).

2. A floating sewage treatment decanter according to claim 1, characterised in that The outlet pipe (1) is connected to a gate (2), and the outlet pipe (1) and the collecting pipe (3) are connected in a T-shape.

3. A floating sewage treatment decanter according to claim 1, wherein The collecting pipe (3) is connected to three sets of bends (12) on one side, and each set of bends (12) is connected to a limiting plate (11), and one end of the limiting plate (11) is connected to a support rod (10).

4. The floating sewage treatment decanter according to claim 1, characterized in that, The lower end of the guide rod (8) is rotatably connected to the support rod (10), and the corrugated pipe (9) is sleeved on the outside of the guide rod (8), and the upper end of the guide rod (8) is connected to the decanting pipe (61).

5. The floating sewage treatment decanter according to claim 1, characterized in that, One end of the air pipe (4) is connected to the inside of the water inlet pipe (6), and the other end of the air pipe (4) is placed on the upper side of the water surface.

6. A floating sewage treatment decanter according to claim 1, wherein The decanting pipe (61) is a square pipe, and the opposite pipe wall of the square pipe has a through hole, and the plug plate (70) is slidably inserted through the decanting pipe (61).

7. The floating sewage treatment decanter according to claim 1, characterized in that, The plug plate (70) has two mounting slots (74) inside, and the upper side of the mounting slot (74) is provided with a positioning slot (76) with a stepped structure. The outer end of the plug plate (70) is provided with a limiting block (72), and the outer end of the limiting block (72) is connected to an end plate (71).

8. The floating sewage treatment decanter according to claim 1, characterized in that, The filter plate (75) has a solid plate on its upper side, and positioning blocks (77) are provided at both ends of the solid plate. A groove (78) is opened on the upper side of the solid plate.

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