A dosing structure for a wastewater flotation device

By introducing a dispersion component and an electric adjustment system into the flotation machine, the problem of the reagent being difficult to disperse evenly was solved, achieving efficient mixing of the reagent and wastewater and improving the effect of flotation treatment.

CN224430277UActive Publication Date: 2026-06-30JIANGSU QISHENG ENVIRONMENTAL PROTECTION TECH DEV CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU QISHENG ENVIRONMENTAL PROTECTION TECH DEV CO LTD
Filing Date
2025-08-06
Publication Date
2026-06-30

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    Figure CN224430277U_ABST
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Abstract

This utility model discloses a dosing structure for a wastewater flotation device, including a flotation machine body. A U-shaped frame is fixedly connected to the top of the flotation machine body. A through hole is opened on the outer wall of the U-shaped frame, and a fixed pipe is fixedly connected to the inner wall of the through hole. Two inclined pipes are fixedly interconnected at the top of the fixed pipe, and a material bin is fixedly connected to the top of each of the two inclined pipes. In this utility model, the wastewater treatment agent is transported to the dispersing blades through the inclined pipes, the fixed pipe, and the inner pipe. A waterproof motor drives the dispersing blades to rotate in advance, so that the agent after contact can be quickly dispersed by the rotational force, solving the problem of the agent being difficult to disperse evenly in the prior art and greatly improving the efficiency of the agent synergy. The conical disc guides the agent to diffuse obliquely downwards, enhancing the mixing effect with the wastewater. The electric push rod can adjust the height of the inner pipe and related components, changing the dispersion range, adapting to different working conditions, and significantly improving applicability.
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Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment equipment technology, and in particular to a dosing structure for a wastewater flotation device. Background Technology

[0002] Oil drilling processes generate large amounts of suspended solids, colloidal substances, and oily wastewater, which require the use of dissolved air flotation (DAF) machines for treatment. A DAF machine is a water treatment device that combines suspended solids in water with air bubbles, causing them to float and be removed. However, untreated wastewater often contains large amounts of suspended solids and emulsified oil that are difficult to settle naturally, making these pollutants difficult to remove effectively during DAF. Therefore, to improve DAF efficiency, chemicals are usually added to alter the physicochemical properties of the pollutants, making them easier to combine with air bubbles and float.

[0003] In existing technologies, when dispensing flocculants and coagulants into air flotation machines, a simple direct discharge method through pipelines is often used. The agents lack an effective dispersion and mixing mechanism before entering the wastewater, making it difficult for the agents to disperse quickly and evenly after contact. This greatly reduces the synergistic effect between the agents and affects the subsequent mixing effect with the wastewater. Therefore, we propose a dosing structure for a wastewater air flotation device to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a dosing structure for a wastewater flotation device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A wastewater flotation device dosing structure includes a flotation machine body. A U-shaped frame is fixedly connected to the top of the flotation machine body. A through hole is opened on the outer wall of the U-shaped frame. A fixed pipe is fixedly connected to the inner wall of the through hole. Two inclined pipes are fixedly interconnected at the top of the fixed pipe. A hopper is fixedly connected to the top of each of the two inclined pipes. An electric push rod is fixedly connected to the outer wall of the U-shaped frame. A circular top plate is fixedly connected to the bottom of the output end of the electric push rod. A conical disk is fixedly fitted on the outer wall of the circular top plate. An inner pipe is fixedly interconnected at the top of the circular top plate. A dispersion component is provided at the bottom of the circular top plate.

[0007] Preferably, the dispersion component includes four cylinders, the bottom of the circular top plate is fixedly connected to the top of the four cylinders, the bottom of the four cylinders is fixedly connected to the same circular base plate, the bottom of the circular base plate is fixedly connected to a waterproof motor, and the top of the output shaft of the waterproof motor is fixedly connected to a dispersion blade. By setting the dispersion component, the water treatment agent is dispersed into the sewage.

[0008] Preferably, a U-shaped frame is fixedly connected to the top of the U-shaped frame, and the inner wall of the U-shaped frame is fixedly connected to the outer walls of the two hoppers, thereby supporting the two hoppers.

[0009] Preferably, electronic valves are fixedly installed on the outer walls of both inclined tubes, and the opening and closing of the inclined tubes are controlled by the electronic valves.

[0010] Preferably, the outer wall of the inner tube is slidably connected to the inner wall of the fixed tube, and the inner tube moves up and down along the fixed tube.

[0011] Preferably, the bottom of the circular base plate has a circular hole, and the inner wall of the circular hole is rotatably connected to the outer wall of the output shaft of the waterproof motor.

[0012] Compared with the prior art, the advantages of this utility model are:

[0013] In this solution, the water treatment agent is delivered to the dispersing blades via an inclined tube, a fixed tube, and an inner tube. A waterproof motor drives the dispersing blades to rotate in advance, allowing the agent to disperse rapidly upon contact using the rotational force. This solves the problem of uneven agent dispersion in existing technologies and significantly improves the synergistic effect of the agents. The conical disc guides the agent to diffuse downwards at an angle, enhancing the mixing effect with the wastewater. The electric push rod can adjust the height of the inner tube and related components, changing the dispersion range and adapting to different working conditions, thus significantly improving applicability. Attached Figure Description

[0014] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a cross-sectional structural diagram of the dosing structure of a wastewater flotation device proposed in this utility model.

[0016] Figure 2 This is a partial cross-sectional structural diagram of the dosing structure of a wastewater flotation device proposed in this utility model.

[0017] Figure 3 This is a partial three-dimensional structural diagram of the dosing structure of a wastewater flotation device proposed in this utility model.

[0018] In the diagram: 1. Air flotation machine body; 2. U-shaped frame; 3. Fixed pipe; 4. Inclined pipe; 5. Material bin; 6. U-shaped frame; 7. Electronic valve; 8. Electric push rod; 9. Circular top plate; 10. Inner pipe; 11. Conical disc; 12. Cylinder; 13. Circular bottom plate; 14. Waterproof motor; 15. Dispersion blades. Detailed Implementation

[0019] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0020] Depend on Figures 1-3 As shown, a wastewater flotation device dosing structure is disclosed, including a flotation machine body 1 (FPF-5). A U-shaped frame 2 is fixedly connected to the top of the flotation machine body 1 (FPF-5). The through hole at the top of the U-shaped frame 2 provides a stable installation position for the fixing pipe 3, which can firmly fix the fixing pipe 3 and support the entire dosing-related structure to ensure the stability of the dosing process.

[0021] The outer wall of the U-shaped frame 2 has a through hole, and the inner wall of the through hole is fixedly connected to a fixed pipe 3. The fixed pipe 3 receives water treatment agent from the inclined pipe 4 on one hand, providing a channel for agent delivery; on the other hand, it is slidably connected to the inner pipe 10, allowing the inner pipe 10 to move up and down inside it.

[0022] The top of the fixed pipe 3 is connected to two inclined pipes 4. The top of each inclined pipe 4 is fixedly connected to a hopper 5. The inclined pipe 4 connects the hopper 5 and the fixed pipe 3. Because it is inclined, it can guide the medicine in the hopper 5 to flow smoothly to the fixed pipe 3, reduce the retention of medicine in the transportation process, and ensure the smoothness of medicine transportation.

[0023] The top of the U-shaped frame 2 is fixedly connected to the U-shaped frame 6. The inner wall of the U-shaped frame 6 is fixedly connected to the outer wall of the two hoppers 5. The U-shaped frame 6 fixes the two hoppers 5 to the top of the U-shaped frame 2, further enhancing the stability of the hopper 5 installation and preventing the hopper 5 from shifting due to gravity or vibration during the dosing process.

[0024] Electronic valves 7 are fixedly installed on the outer walls of both inclined tubes 4. The electronic valves 7 are installed on the inclined tubes 4 and can precisely control the opening and closing of the inclined tubes 4, thereby enabling the two agents to be added simultaneously or sequentially, meeting different dosing requirements and improving the flexibility of dosing.

[0025] An electric push rod 8 is fixedly connected to the outer wall of the U-shaped frame 2. A circular top plate 9 is fixedly connected to the bottom of the output end of the electric push rod 8. When the electric push rod 8 is running, it can drive the circular top plate 9 and the inner tube 10 to move up and down, thereby changing the height of the dispersing blade 15 and the conical disk 11, thereby adjusting the dispersion range of the agent on the water surface to adapt to different working conditions.

[0026] A conical disc 11 is fixedly fitted on the outer wall of the circular top plate 9. The conical disc 11 has a guiding function, which can guide the agent dispersed by the dispersing blade 15 to diffuse obliquely downward, expand the contact range between the agent and the sewage, and help the agent and sewage mix better. An inner tube 10 is fixedly connected to the top of the circular top plate 9. The outer wall of the inner tube 10 is slidably connected to the inner wall of the fixed tube 3.

[0027] The bottom of the circular top plate 9 is provided with a dispersion component, which includes four cylinders 12. The bottom of the circular top plate 9 is fixedly connected to the top of the four cylinders 12. The bottom of the four cylinders 12 is fixedly connected to the same circular base plate 13. The bottom of the circular base plate 13 is fixedly connected to a waterproof motor 14 (YX3-100L-4). The bottom of the circular base plate 13 has a circular hole. The inner wall of the circular hole is rotatably connected to the outer wall of the output shaft of the waterproof motor 14 (YX3-100L-4). The top of the output shaft of the waterproof motor 14 (YX3-100L-4) is fixedly connected to a dispersion blade 15. The waterproof motor 14 (YX3-100L-4) provides power for the rotation of the dispersion blade 15. Its waterproof performance can adapt to the sewage environment and ensure normal operation in humid or even water-contact conditions.

[0028] Working principle: During use, two water treatment agents (flocculator and coagulant aid) are placed inside the two hoppers 5 respectively. When dosing is required, the two electronic valves 7 are opened simultaneously or sequentially, allowing the water treatment agent to enter the fixed pipe 3 through the two inclined pipes 4, then enter the inner pipe 10 through the fixed pipe 3, and finally enter the dispersing blades 15 through the inner pipe 10. The waterproof motor 14 starts in advance, driving the dispersing blades 15 to rotate. The rotational force disperses the water treatment agent upon contact and, guided by the conical disc 11, disperses it obliquely downwards, falling into the sewage. This helps the water treatment agent mix with the sewage. The operation of the electric push rod 8 can drive the circular top plate 9 and the inner pipe 10 to move downwards, thereby changing the height of the dispersing blades 15 and the conical disc 11, which can adjust the dispersion range of the water treatment agent on the water surface and improve its applicability.

[0029] It should be noted that when actually put into use, an existing PLC controller can be added. The PLC controller is electrically connected to the air flotation machine body 1, electronic valve 7, electric push rod 8 and waterproof motor 14 to facilitate the control of the overall operation.

[0030] All standard parts used in this utility model can be purchased from the market. Irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. Furthermore, the structure and principle of the components known to those skilled in the art can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0031] Although embodiments of this application 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 this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dosing structure for a wastewater flotation device, comprising a flotation unit body (1), characterized in that, The top of the air flotation machine body (1) is fixedly connected to a U-shaped frame (2). The outer wall of the U-shaped frame (2) is provided with a through hole. The inner wall of the through hole is fixedly connected to a fixed pipe (3). The top of the fixed pipe (3) is fixedly connected to two inclined pipes (4). The top of the two inclined pipes (4) is fixedly connected to a hopper (5). The outer wall of the U-shaped frame (2) is fixedly connected to an electric push rod (8). The bottom of the output end of the electric push rod (8) is fixedly connected to a circular top plate (9). The outer wall of the circular top plate (9) is fixedly fitted with a conical disc (11). The top of the circular top plate (9) is fixedly connected to an inner pipe (10). The bottom of the circular top plate (9) is provided with a dispersion component.

2. The dosing structure of a wastewater flotation device according to claim 1, characterized in that, The dispersing assembly includes four cylinders (12), the bottom of the circular top plate (9) is fixedly connected to the top of the four cylinders (12), the bottom of the four cylinders (12) is fixedly connected to the same circular bottom plate (13), the bottom of the circular bottom plate (13) is fixedly connected to a waterproof motor (14), and the top of the output shaft of the waterproof motor (14) is fixedly connected to a dispersing blade (15).

3. The dosing structure of a wastewater flotation device according to claim 1, characterized in that, The top of the U-shaped frame (2) is fixedly connected to a spiral frame (6), and the inner wall of the spiral frame (6) is fixedly connected to the outer wall of the two hoppers (5).

4. The dosing structure of a wastewater flotation device according to claim 1, characterized in that, Electronic valves (7) are fixedly installed on the outer walls of both inclined tubes (4).

5. The dosing structure of a wastewater flotation device according to claim 1, characterized in that, The outer wall of the inner tube (10) is slidably connected to the inner wall of the fixed tube (3).

6. The dosing structure of a wastewater flotation device according to claim 2, characterized in that, The bottom of the circular base plate (13) has a circular hole, and the inner wall of the circular hole is rotatably connected to the outer wall of the output shaft of the waterproof motor (14).