Large-flow high-speed air flotation treatment device

Abstract

The utility model relates to the field of air flotation treatment, and discloses a large-flow high-speed air flotation treatment device which comprises a fixing frame, a precipitation bin is fixedly connected to the interior of the fixing frame, a supporting frame is fixedly connected to the upper surface of the precipitation bin, and a motor is fixedly installed at the left end of the front surface of the supporting frame. A driving shaft is fixedly mounted on an output shaft of the motor, a conveying belt is in transmission connection with the outer wall of the driving shaft, an auxiliary assembly is arranged on the upper surface of the conveying belt, an air flotation assembly is arranged on the left surface of the precipitation bin and comprises a water inlet, and a sewage collection bin is connected to the lower surface of the precipitation bin through a pipeline. According to the utility model, through mutual cooperation of connection relations among parts such as the precipitation bin, the sewage pipe and the sewage collection bin in the air flotation assembly, the separation efficiency of the equipment on residues in wastewater is improved, solid substances are prevented from being removed too early, accumulation of sludge is reduced, and the air flotation effect of the equipment on the wastewater is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of air flotation treatment, and in particular to a high-flow-rate, high-speed air flotation treatment device. Background Technology

[0002] Air flotation (AF) systems play a crucial role in water treatment, particularly wastewater treatment. Their basic principle is based on Archimedes' principle, utilizing the buoyancy of air bubbles to lift suspended solids to the surface, thus achieving solid-liquid separation. However, traditional AF systems often suffer from uneven water distribution and low treatment efficiency when treating large volumes of wastewater.

[0003] A search revealed Chinese Patent Publication No. CN216191217U, which discloses a high-speed air flotation device specifically designed for large-flow-rate wastewater treatment. The device comprises a tank body, a left release device, a left buffer zone, a left inlet pipe, a left water distribution zone, a left sludge hopper, a left separation zone, a left forced inclined plate separation module, a left collection pipe, a left clear water zone, a right release device, a right buffer zone, a right inlet pipe, a right water distribution zone, a right sludge hopper, a right separation zone, a right forced inclined plate separation module, a right collection pipe, a right clear water zone, a sludge collection tank, and a dissolved air pump. This invention effectively solves the problem of uneven water distribution in air flotation when treating large-flow-rate wastewater through its design of inlet water on both sides and collection water in the middle. Compared with traditional processes, it offers more stable operation, more reliable effluent, and simpler operation. It can meet the requirements of large-flow-rate wastewater treatment, can be shipped as a complete unit, is easy to install on-site, and can be transferred to other projects for reuse after the project is completed, ensuring reliable and stable effluent. This overcomes the shortcomings of traditional civil-constructed air flotation tanks.

[0004] The above-mentioned device has the following drawbacks: existing technologies have some shortcomings in treating wastewater with high flow rate and high suspended solids content. The overflow rate of traditional plate separators is usually low, which cannot meet the treatment requirements of high flow rate wastewater, and the sludge treatment capacity is limited, resulting in high subsequent treatment costs. Therefore, a high flow rate high speed air flotation treatment device is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a high-flow-rate high-speed air flotation treatment device, which aims to improve the problem of poor separation effect in the treatment of wastewater in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-flow-rate, high-speed air flotation treatment device, comprising a fixed frame, a sedimentation tank fixedly connected inside the fixed frame, a support frame fixedly connected to the upper surface of the sedimentation tank, a motor fixedly installed at the left end of the front surface of the support frame, a drive shaft fixedly installed on the output shaft of the motor, a transmission belt connected to the outer wall of the drive shaft, an auxiliary component provided on the upper surface of the transmission belt, an air flotation component provided on the left surface of the sedimentation tank, the air flotation component including an inlet, a sludge collection tank connected to the lower surface of the sedimentation tank via a pipe, a sludge collection tank connected to the left end of the sludge collection tank via a pipe, and a sewage outlet connected to the upper end of the sludge collection tank via a pipe.

[0007] As a further description of the above technical solution: the auxiliary component includes a water outlet box, a bubble float plate is detachably connected to the upper surface of the water outlet box, positioning blocks are fixedly connected to both the front and rear ends of the water outlet box, and multiple sets of evenly distributed drainage grooves are formed on the lower surface of the water outlet box.

[0008] As a further description of the above technical solution: the front and rear surfaces of the sedimentation tank are both connected to slag collection tanks by pipes, and the right surface of the slag collection tank is connected to a slag discharge pipe by pipes.

[0009] As a further description of the above technical solution: the lower surface of the slag discharge pipe is connected to a transport pipe, and the transport pipe is fixedly installed between the fixed frame and the sedimentation tank.

[0010] As a further description of the above technical solution: a fixing groove is provided on the lower surface of the inner wall of the water outlet box, and an abutment is elastically connected to the inner wall of the fixing groove by an elastic element.

[0011] As a further description of the above technical solution: the top of the elastic element is fixedly installed on the lower surface of the abutment, and the bottom of the elastic element is fixedly installed in the inner wall of the fixing groove.

[0012] As a further description of the above technical solution: the water outlet box is detachably connected to the node on the upper surface of the conveyor belt via a positioning block.

[0013] As a further description of the above technical solution: the water inlet is located at the center of the left surface of the sedimentation tank.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, by utilizing the mutual cooperation between the components such as the sedimentation tank, sewage pipe, and sludge collection tank in the air flotation assembly, the efficiency of the equipment in separating residues in wastewater is improved, the premature removal of solid matter is avoided, the accumulation of sludge is reduced, and the air flotation effect of the equipment on wastewater is enhanced.

[0016] 2. In this utility model, the auxiliary components such as the bubble float, elastic parts, and water outlet box are connected and cooperate with each other to effectively handle large flow rates with high suspended solids content, making the equipment a compact system with high processing capacity. The unique sludge dewatering and removal system enhances the equipment's treatment effect on sewage. Attached Figure Description

[0017] Figure 1 This is a frontal view of the main body of a high-flow-rate high-speed air flotation treatment device proposed in this utility model;

[0018] Figure 2 This is a side view of the main body of a high-flow-rate high-speed air flotation treatment device proposed in this utility model;

[0019] Figure 3 This is a partial schematic diagram of the flotation plate area of ​​a high-flow-rate, high-speed air flotation treatment device proposed in this utility model.

[0020] Figure 4 This is a partial exploded view of the components in the outlet box of a high-flow-rate, high-speed air flotation treatment device proposed in this utility model.

[0021] Legend:

[0022] 1. Fixed frame; 2. Sedimentation tank; 3. Support frame; 4. Motor; 5. Drive shaft; 6. Conveyor belt; 7. Auxiliary components; 71. Bubble float; 72. Water outlet box; 73. Drainage trough; 74. Fixed trough; 75. Positioning block; 76. Elastic element; 77. Support block; 8. Sludge collection tank; 9. Sludge discharge pipe; 10. Sewage pipe; 11. Water inlet; 12. Sewage outlet; 13. Sludge collection tank. Detailed Implementation

[0023] 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.

[0024] Reference Figure 1 - Figure 3This utility model provides an embodiment of a high-flow-rate, high-speed air flotation treatment device, comprising a fixed frame 1 made of high-strength material to ensure the stability and durability of the device. A sedimentation tank 2 is fixedly connected inside the fixed frame 1, and the sedimentation tank 2 is installed inside the fixed frame 1 for the initial sedimentation of large suspended particles in wastewater. Its design ensures the initial purification of wastewater before it enters subsequent treatment stages. A support frame 3 is fixedly connected to the upper surface of the sedimentation tank 2, providing an installation platform for a motor 4 and other components. A motor 4 is fixedly installed at the left end of the front surface of the support frame 3, providing power to a drive shaft 5 to ensure the normal operation of the device. The output shaft of the motor 4 is fixedly installed with the drive shaft 5, which drives other components through a transmission belt 6. The outer wall of the drive shaft 5 is connected to the transmission belt 6, and an auxiliary component 7 is provided on the upper surface of the transmission belt 6. An air flotation component is provided on the left surface of the sedimentation tank 2.

[0025] Reference Figure 1 - Figure 3 The air flotation component includes an inlet 11, which is located at the center of the left surface of the sedimentation tank 2. The inlet 11 is used for the input of wastewater. A sludge collection tank 13 is connected to the lower surface of the sedimentation tank 2. The sludge collection tank 13 is used to collect sludge generated during the treatment process. A sewage outlet 12 is connected to the left end of the sludge collection tank 13. The sewage outlet 12 is used for the discharge of sludge. A sewage pipe 10 is connected to the upper end of the sludge collection tank 13. The sewage pipe 10 is used to transport wastewater. Sludge collection tanks 8 are connected to the front and rear surfaces of the sedimentation tank 2. Sludge collection tanks 8 are used to collect scum. A sludge discharge pipe 9 is connected to the right surface of the sludge collection tank 8. The sludge discharge pipe 9 is used for the discharge of scum. A transport pipe is connected to the lower surface of the sludge discharge pipe 9. The transport pipe is used for the transport of sludge and scum. The transport pipe is fixedly installed between the fixed frame 1 and the sedimentation tank 2.

[0026] Reference Figure 2 - Figure 4 The auxiliary component 7 includes a water outlet box 72, which is detachably connected to the node on the upper surface of the conveyor belt 6 via positioning blocks 75. The water outlet box 72 is used for further treatment of wastewater. A bubble float plate 71 is detachably connected to the upper surface of the water outlet box 72. The bubble float plate 71 is used to generate microbubbles to enhance the air flotation effect. Positioning blocks 75 are fixedly connected to both the front and rear ends of the water outlet box 72 to ensure the stable installation of the water outlet box 72. Multiple sets of evenly distributed drainage channels 73 are opened on the lower surface of the water outlet box 72 for wastewater discharge. A fixing groove 74 is opened on the lower surface of the inner wall of the water outlet box 72. An abutment block 77 is elastically connected to the inner wall of the fixing groove 74 via an elastic member 76. The top of the elastic member 76 is fixedly installed on the lower surface of the abutment block 77, and the bottom of the elastic member 76 is fixedly installed in the inner wall of the fixing groove 74. The elastic member 76 provides a buffering and stabilizing effect, and the abutment block 77 is used to enhance the structural stability of the water outlet box 72.

[0027] Working Principle: Wastewater enters sedimentation tank 2 through inlet 11. The design of sedimentation tank 2 ensures that large suspended particles are initially settled before entering subsequent treatment stages. This initial sedimentation helps reduce the load on subsequent treatment and improves overall treatment efficiency. The wastewater mixes with microbubbles in sedimentation tank 2. The air flotation component generates microbubbles ranging from 30 to 50 micrometers through aerators. These microbubbles adhere to suspended particles, oil, grease, and solid flocs, increasing their buoyancy and causing them to float to the surface, forming scum. This process utilizes DAF dissolved air flotation technology, significantly improving separation efficiency. The scum is collected through scum collection tank 8 and discharged from the system through scum discharge pipe 9. The lower surface of scum discharge pipe 9 is connected to a transport pipe, which is fixed between the fixing frame 1 and sedimentation tank 2, ensuring smooth discharge of scum for subsequent treatment. Sludge generated during treatment is collected through sludge collection tank 13, with a drain outlet 12 connected to the left end for sludge discharge. The bottom sludge is fixed and partially dewatered by a shaftless screw conveyor. This design allows operators to control the sludge thickness, avoiding premature removal of solids and reducing sludge accumulation. Remaining sludge is then transported to a central discharge point and discharged via an automatic pneumatic valve. This discharge cycle is self-cleaning, ensuring that particles inside the system do not adhere to the walls, thus maintaining long-term stable operation. Auxiliary component 7 is installed on the upper surface of conveyor belt 6 for further wastewater treatment. The effluent box 72 is detachably connected to the nodes on the upper surface of conveyor belt 6 via positioning blocks 75, ensuring uniform distribution of wastewater during transport. Bubble flotation plates 71 are detachably connected to the upper surface of effluent box 72 to generate additional microbubbles, enhancing the flotation effect. Multiple evenly distributed drainage channels 73 are formed on the lower surface of effluent box 72 for wastewater discharge. The design of the drainage channels 73 ensures uniform wastewater discharge, preventing localized accumulation. Motor 4 provides power to the entire system via drive shaft 5 and conveyor belt 6. The auxiliary component 7 is located on the upper surface of conveyor belt 6 to ensure uniform distribution of wastewater during transport and further treatment. The rotation of drive shaft 5 drives the conveyor belt 6 to move, ensuring that the wastewater can be fully mixed and treated in sedimentation tank 2. The system's discharge cycle is designed for self-cleaning.

[0028] Any particles adhering to the system walls or sides will loosen during discharge and follow their initial flow path, ensuring long-term stable operation of the system. This self-cleaning function reduces maintenance frequency and costs, and improves system reliability. As standard, the system is equipped with aerators, a circulation module, pneumatic switches, and a control panel. These components enable precise control of the aeration module and sediment discharge valve, ensuring efficient system operation. The control panel monitors and adjusts the influent flow rate, flotation process, and sludge discharge, enabling automated management.

[0029] 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 large flow high speed air floatation treatment device comprising a fixed frame (1), characterized in that: A sedimentation tank (2) is fixedly connected inside the fixed frame (1). A support frame (3) is fixedly connected to the upper surface of the sedimentation tank (2). A motor (4) is fixedly installed on the left end of the front surface of the support frame (3). A drive shaft (5) is fixedly installed on the output shaft of the motor (4). A transmission belt (6) is connected to the outer wall of the drive shaft (5). An auxiliary component (7) is provided on the upper surface of the transmission belt (6). An air flotation component is provided on the left surface of the sedimentation tank (2). The air flotation component includes an inlet (11). A sludge collection tank (13) is connected to the lower surface of the sedimentation tank (2). A sewage outlet (12) is connected to the left end of the sludge collection tank (13). A sewage pipe (10) is connected to the upper end of the sludge collection tank (13).

2. The high-flow-rate, high-speed air flotation treatment device according to claim 1, characterized in that: The auxiliary component (7) includes a water outlet box (72), on the upper surface of which a bubble float plate (71) is detachably connected. Positioning blocks (75) are fixedly connected to both the front and rear ends of the water outlet box (72). Multiple sets of evenly distributed drainage grooves (73) are opened on the lower surface of the water outlet box (72).

3. The high-flow-rate, high-speed air flotation treatment device according to claim 1, characterized in that: The sedimentation tank (2) has a slag collection tank (8) connected to the front and rear surfaces by pipes, and the slag collection tank (8) has a slag discharge pipe (9) connected to the right surface by pipes.

4. The high-flow-rate, high-speed air flotation treatment device according to claim 3, characterized in that: The lower surface of the slag discharge pipe (9) is connected to a transport pipe, which is fixedly installed between the fixed frame (1) and the sedimentation tank (2).

5. The high-flow-rate, high-speed air flotation treatment device according to claim 2, characterized in that: A fixing groove (74) is provided on the lower surface of the inner wall of the water outlet box (72), and an abutment (77) is elastically connected to the inner wall of the fixing groove (74) by an elastic member (76).

6. The high-flow-rate, high-speed air flotation treatment device according to claim 5, characterized in that: The top of the elastic element (76) is fixedly installed on the lower surface of the abutment (77), and the bottom of the elastic element (76) is fixedly installed in the inner wall of the fixing groove (74).

7. The high-flow-rate, high-speed air flotation treatment device according to claim 2, characterized in that: The water outlet box (72) is detachably connected to the node on the upper surface of the conveyor belt (6) via a positioning block (75).

8. The high-flow-rate, high-speed air flotation treatment device according to claim 1, characterized in that: The inlet (11) is located at the center of the left surface of the sedimentation tank (2).

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