A series-connected wastewater treatment flotation machine

Abstract

This utility model relates to the field of wastewater treatment technology, and in particular to a series-type wastewater treatment flotation machine. It solves the problems of existing technologies where the sludge collection box is fixedly installed, resulting in cumbersome disassembly, difficulty in independent removal for thorough cleaning, long maintenance cycles, and high labor intensity. The series-type wastewater treatment flotation machine includes a flotation machine body and a mounting frame connected to the top of the flotation machine body. A mounting bracket is provided at one end of the flotation machine body, and the mounting bracket is connected to the end of the mounting frame via a connecting structure. A detachable collection chamber and a liquid collection box are provided at the bottom of the mounting bracket. This utility model, through the detachable liquid collection box and collection chamber, significantly improves the convenience of subsequent cleaning and maintenance efficiency, effectively reduces manual labor intensity, and meets the actual needs of efficient and stable equipment operation and rapid maintenance.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a series-type wastewater treatment flotation machine. Background Technology

[0002] The series-connected dissolved air flotation (DAF) unit is a key piece of equipment widely used in industrial wastewater, domestic sewage, and complex water treatment systems. Through the series configuration of multiple flotation units, it achieves highly efficient separation of suspended solids, grease, and fine particles from water. This type of equipment plays a core role in pretreatment or advanced treatment in wastewater treatment processes, significantly improving water clarity and purification efficiency. It is an indispensable and important device in modern environmental engineering and water resource recycling systems.

[0003] Utility model patent CN219098798U discloses a series-type dissolved air flotation (DAF) machine for wastewater treatment, including a DAF machine body with an internal storage chamber. A sludge collection device is installed on one end surface of the DAF machine body, comprising a sludge collection box, a compression cover, a lifting support, an electric push rod, and a support plate. The sludge enters the sludge collection box through the compression cover, where it is squeezed and dehydrated, effectively reducing residual moisture and compressing the volume of the sludge, thereby reducing the unloading frequency. Simultaneously, residual water is filtered through a filter frame and a precision separation screen before being discharged, preventing small particulate pollutants from escaping with the water flow and improving the overall wastewater treatment effect.

[0004] Although the patent makes some improvements in the compression and dehydration of pollutants and the filtration of residual water, there are still obvious technical defects in actual use: the sludge collection box in the device is fixedly installed, the disassembly process is cumbersome, it is not convenient to remove it independently for thorough cleaning, resulting in long maintenance cycles and high labor intensity.

[0005] Therefore, to address the shortcomings of existing technologies, we urgently need a series-type dissolved air flotation (DAF) machine for wastewater treatment to solve the aforementioned problems. This new DAF machine should significantly improve the ease of disassembly and cleaning efficiency of the sludge collection device, enhance the modularity and maintainability of the structure, and better meet the demands of modern wastewater treatment systems for high efficiency and energy saving, providing strong technical support for environmental protection and water resource recycling. Utility Model Content

[0006] The purpose of this invention is to provide a series-type air flotation machine for sewage treatment, which solves the problems of the existing technology where the sludge collection box is fixedly installed, the disassembly process is cumbersome, it is not convenient to remove it independently for thorough cleaning, resulting in long maintenance cycles and high labor intensity.

[0007] To achieve the above objectives, this utility model provides a series-type air flotation machine for sewage treatment, including an air flotation machine body and an installation frame connected to the top of the air flotation machine body. One end of the air flotation machine body is provided with an installation frame, which is connected to the end of the installation frame through a connecting structure. The bottom of the installation frame is provided with a collection chamber that is detachably connected to the top of the connecting structure. The bottom of the collection chamber is provided with a liquid collection box that is detachably connected to the bottom of the connecting structure. The top of the collection chamber is provided with a pressure plate, and the top of the pressure plate is connected to the installation frame through a vertical lifting structure.

[0008] The bottom of the inner cavity of the collection chamber is provided with several drainage holes. A guide plate is inclinedly provided on one side of the top of the collection chamber. Both ends of the guide plate are fixedly connected to the inner wall of the mounting frame. A scraper is provided inside the mounting frame. One side of the scraper is connected to the side wall of the mounting frame through a horizontal pushing structure.

[0009] The connecting structure includes two symmetrically arranged crossbars. One end of each crossbar is connected to the end of the mounting frame via a vertical bar. The bottom sides of the mounting frame are respectively connected to the tops of the two crossbars.

[0010] The horizontal pushing structure includes a pushing cylinder installed at one end of the mounting frame. The output end of the pushing cylinder is connected to one side of the scraper plate, and the bottom of the mounting frame is connected to the top of the air flotation machine body.

[0011] The top of one inner wall of the collection chamber is provided with an inclined surface corresponding to the guide plate, and positioning plates are fixedly connected to both sides of the top of the collection chamber. The positioning plates are connected to the adjacent vertical rods through positioning screws.

[0012] The vertical lifting structure includes a lifting cylinder installed on the top of the mounting frame, and the output end of the lifting cylinder is connected to the top of the pressure plate.

[0013] The two crossbars are provided with insertion slots on their sides that are close to each other, and the liquid collection box is fixedly connected to insertion plates that are compatible with the insertion slots on both sides.

[0014] This utility model discloses a series-connected air flotation machine for wastewater treatment. By incorporating an integrated scum collection and dewatering system consisting of a scraper, guide plate, collection chamber, and drain hole, it achieves efficient collection and dewatering of suspended impurities in water. This avoids the waste of large amounts of clean water caused by the direct discharge of water containing impurities in traditional methods, significantly improving water resource utilization. Secondly, the combined design of the collection chamber and pressure plate allows for preliminary compression of the scum without relying on external power, reducing its moisture content and volume. This not only improves space utilization efficiency but also reduces the amount of subsequent pollutants to be treated. The detachable connection structure between the mounting frame and the mounting bracket allows for independent disassembly of both the collection chamber and the collection box, greatly improving the convenience of subsequent cleaning and replacement. This solves the problems of difficult-to-clean, easily clogged, and inconveniently maintained scum collection structures in traditional equipment. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0017] Figure 2 This is a schematic diagram of the structure of the vertical and horizontal bars in an embodiment of this utility model.

[0018] Figure 3 This is a schematic diagram of the mounting bracket and pressure plate according to an embodiment of the present invention.

[0019] Figure 4 This is a schematic diagram of the positioning plate and positioning screw in an embodiment of the present invention.

[0020] Figure 5 This is a schematic diagram of the liquid collection box and the plug-in plate according to an embodiment of the present utility model.

[0021] In the diagram: 1. Air flotation machine body; 2. Push cylinder; 3. Mounting frame; 4. Scraper; 5. Collection bin; 6. Liquid collection box; 7. Vertical rod; 8. Horizontal rod; 9. Insertion slot; 10. Positioning hole; 11. Pressure plate; 12. Mounting bracket; 13. Lifting cylinder; 14. Guide plate; 15. Drain hole; 16. Positioning plate; 17. Inclined surface; 18. Positioning screw; 19. Insertion plate. Detailed Implementation

[0022] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0023] Example 1

[0024] Please see Figure 1-5 As shown, a series-type air flotation machine for sewage treatment in this embodiment includes an air flotation machine body 1 and an installation frame 3 connected to the top of the air flotation machine body 1. An installation frame 12 is provided at one end of the air flotation machine body 1. The installation frame 12 is connected to the end of the installation frame 3 through a connecting structure. A collection chamber 5 is provided at the bottom of the installation frame 12 and is detachably connected to the top of the connecting structure. A liquid collection box 6 is provided at the bottom of the collection chamber 5 and is detachably connected to the bottom of the connecting structure. A pressure plate 11 is provided at the top of the collection chamber 5. The top of the pressure plate 11 is connected to the installation frame 12 through a vertical lifting structure.

[0025] The bottom of the inner cavity of the collection chamber 5 is provided with several drainage holes 15. A guide plate 14 is inclinedly provided on one side of the top of the collection chamber 5. Both ends of the guide plate 14 are fixedly connected to the inner wall of the mounting frame 3. A scraper 4 is provided inside the mounting frame 3. One side of the scraper 4 is connected to the side wall of the mounting frame 3 through a horizontal pushing structure.

[0026] The workflow is as follows: When the wastewater to be treated enters the storage chamber inside the flotation unit 1, the tiny bubbles generated by the dissolved air system carry the suspended solids and impurities in the water to the surface, forming a scum layer. The scraper 4 inside the mounting frame 3 moves reciprocally along the inner wall of the flotation unit under the action of the horizontal pushing structure, concentrating and pushing the scum to the guide plate 14 inclined on one side of the top. The guide plate 14 guides the scum into the collection chamber 5. The top of the collection chamber 5 is equipped with a pressure plate 11, which is connected to the mounting frame 12 through a vertical lifting structure. Under the downward pressure of the pressure plate 11, the scum entering the collection chamber 5 is compressed. The scum undergoes preliminary compression and dewatering to reduce its water content and volume. The dewatered residue accumulates inside the collection chamber 5, while the separated liquid is discharged through several drainage holes 15 at the bottom of the collection chamber 5 into the collection box 6 below, achieving effective solid-liquid separation. Meanwhile, the mounting frame 12 is connected to the end of the mounting frame 3 via a connecting structure, and the collection chamber 5 and the collection box 6 are detachably connected to the top and bottom of the connecting structure, respectively. This facilitates the quick disassembly of the collection chamber 5 and the collection box 6 after the equipment has finished operating, allowing for independent cleaning and maintenance, thereby effectively improving the flexibility and convenience of subsequent cleaning.

[0027] Example 2

[0028] Please see Figure 1-5As shown in this embodiment, a series-connected wastewater flotation machine includes a connecting structure with two symmetrically arranged horizontal bars 8. One end of each horizontal bar 8 is connected to the end of the mounting frame 3 via a vertical bar 7. The bottom sides of the mounting frame 12 are connected to the tops of the two horizontal bars 8 respectively. Specifically, through the coordinated arrangement of the horizontal bars 8, vertical bars 7, and mounting frame 12, during equipment operation, the two symmetrically arranged horizontal bars 8 are connected to the end of the mounting frame 3 via the vertical bars 7, and the bottom sides of the mounting frame 12 are connected to the tops of the two horizontal bars 8 respectively. This achieves stable support for the mounting frame 12 and the collection chamber 5 and liquid collection box 6 below it, while ensuring the rigidity and anti-eccentric load capacity of the overall structure during operation, thereby enhancing the overall structural stability, load-bearing capacity, and operational reliability of the equipment.

[0029] The top of one inner wall of the collection bin 5 is provided with an inclined surface 17 corresponding to the guide plate 14. Positioning plates 16 are fixedly connected to both sides of the top of the collection bin 5. The positioning plates 16 are connected to the adjacent vertical rods 7 through positioning screws 18. The vertical rods 7 have positioning holes 10 on one side that are adapted to the positioning screws 18. Specifically, through the coordinated arrangement of the inclined surface 17, the positioning plates 16 and the positioning screws 18, when the scum is guided into the collection bin 5 by the guide plate 14, the inclined surface 17 on one side of its top can form a good connection with the guide plate 14 to prevent the scum from getting stuck or overflowing. At the same time, the positioning plates 16 on both sides of the top of the collection bin 5 are connected to the vertical rods 7 through positioning screws 18 to achieve stable positioning of the collection bin 5, thereby optimizing the material conveying path, improving the structural connection accuracy and enhancing the installation stability of the collection bin 5.

[0030] Both crossbars 8 have insertion slots 9 on their sides that are close to each other. Both sides of the liquid collection box 6 are fixedly connected with insertion plates 19 that are compatible with the insertion slots 9. Specifically, through the matching of the insertion slots 9 and the insertion plates 19, during the equipment shutdown maintenance phase, the insertion plates 19 on both sides of the liquid collection box 6 can be inserted into the insertion slots 9 on the crossbars 8 to achieve quick disassembly and installation. The replacement and cleaning of the liquid collection box 6 can be completed without the use of complicated tools, which improves the convenience of later maintenance, shortens maintenance time, and reduces the intensity of manual labor.

[0031] Example 3

[0032] Please see Figure 1-5As shown in the figure, a series-type wastewater flotation machine in this embodiment includes a horizontal pushing structure comprising a pushing cylinder 2 installed at one end of an installation frame 3. The output end of the pushing cylinder 2 is connected to one side of a scraper plate 4. The bottom of the installation frame 3 is connected to the top of the flotation machine body 1. Specifically, through the cooperative arrangement of the pushing cylinder 2 and the scraper plate 4, when the flotation machine is working, the pushing cylinder 2 is installed at one end of the installation frame 3 and connected to the scraper plate 4 through its output end, driving the scraper plate 4 to reciprocate horizontally along the inner wall of the installation frame 3, concentrating and pushing the scum to the guide plate 14, avoiding uneven accumulation or residue of scum that affects subsequent treatment efficiency, and achieving the effects of improving scum cleaning efficiency, ensuring the continuity of flotation treatment, and reducing manual intervention.

[0033] The vertical lifting structure includes a lifting cylinder 13 installed on the top of the mounting frame 12. The output end of the lifting cylinder 13 is connected to the top of the pressure plate 11. Specifically, through the cooperation between the lifting cylinder 13 and the pressure plate 11, after the scum collection in the collection bin 5 is completed, the lifting cylinder 13 installed on the top of the mounting frame 12 drives the pressure plate 11 to move downward, applying pressure to the scum in the collection bin 5 to compress and dehydrate it, effectively reducing its water content and shrinking its volume, thereby achieving the effects of improving solid-liquid separation efficiency, reducing pollutant volume, and facilitating subsequent transportation and treatment.

[0034] When the entire device is running, the wastewater to be treated first enters the storage chamber inside the air flotation machine body 1. The dissolved air system generates tiny bubbles that carry the suspended solids in the water to the surface to form a scum layer. The scraper plate 4, under the action of the push cylinder 2, concentrates and pushes the scum to the guide plate 14. The scum is guided into the collection chamber 5 through the guide plate 14, and is compressed and dehydrated by the pressure plate 11 driven by the lifting cylinder 13. The dehydrated liquid flows into the collection box 6 through the drain hole 15, while the residue is retained in the collection chamber 5 for cleaning. When the equipment stops running, the operator can disassemble the collection chamber 5 and the collection box 6 in sequence for independent cleaning and maintenance, which greatly improves the flexibility and convenience of subsequent cleaning.

[0035] In summary, this series-connected wastewater treatment flotation unit, through the coordinated operation of its components, achieves a complete treatment process from wastewater influent, scum separation, scraping, conveying, compression dewatering to liquid recovery and subsequent cleaning. Its beneficial effects are mainly reflected in: effectively solving the problems of complex impurity removal structures and serious water waste in existing drinking water treatment devices; improving impurity removal efficiency and water resource utilization through an integrated scum collection and dewatering system; a simple and reasonable structural design, eliminating the need for complex electrical controls, reducing manufacturing costs and maintenance difficulty; and enhanced flexibility and convenience of subsequent cleaning through the detachable collection chamber 5 and liquid collection box 6. It also possesses excellent modularity and strong adaptability, meeting the diverse needs of modern aquaculture and various wastewater treatment scenarios for water conservation, energy saving, environmental protection, and intelligent management systems.

[0036] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A series type sewage treatment air floatation machine, characterized by, include: The air flotation machine body and the mounting frame connected to the top of the air flotation machine body are provided. One end of the air flotation machine body is provided with a mounting frame. The mounting frame is connected to the end of the mounting frame through a connecting structure. The bottom of the mounting frame is provided with a collection chamber that is detachably connected to the top of the connecting structure. The bottom of the collection chamber is provided with a liquid collection box that is detachably connected to the bottom of the connecting structure. The top of the collection chamber is provided with a pressure plate. The top of the pressure plate is connected to the mounting frame through a vertical lifting structure. The bottom of the inner cavity of the collection chamber is provided with several drainage holes. A guide plate is inclinedly provided on one side of the top of the collection chamber. Both ends of the guide plate are fixedly connected to the inner wall of the mounting frame. A scraper is provided inside the mounting frame. One side of the scraper is connected to the side wall of the mounting frame through a horizontal pushing structure.

2. The series wastewater treatment air flotation machine according to claim 1, characterized in that, The connecting structure includes two symmetrically arranged crossbars, one end of each crossbar being connected to the end of the mounting frame via a vertical bar, and the bottom sides of the mounting frame being connected to the tops of the two crossbars respectively.

3. The series wastewater treatment airflotation machine according to claim 1, characterized in that, The horizontal pushing structure includes a pushing cylinder installed at one end of the mounting frame. The output end of the pushing cylinder is connected to one side of the scraper plate, and the bottom of the mounting frame is connected to the top of the air flotation machine body.

4. The series wastewater treatment airflotation machine according to claim 2, characterized in that, The top of one inner wall of the collection chamber is provided with an inclined surface corresponding to the guide plate. Positioning plates are fixedly connected to both sides of the top of the collection chamber. The positioning plates are connected to the adjacent vertical rods through positioning screws.

5. A series-type wastewater treatment flotation machine according to claim 3, characterized in that, The vertical lifting structure includes a lifting cylinder mounted on the top of the mounting frame, the output end of which is connected to the top of the pressure plate.

6. The series wastewater treatment airflotation machine according to claim 4, wherein Both of the two crossbars have insertion slots on their sides that are close to each other, and both sides of the liquid collection box are fixedly connected with insertion plates that are compatible with the insertion slots.

Images