Air flotation device with efficient removal capacity

Abstract

The invention relates to the technical field of sewage treatment, in particular to an air flotation device with efficient removal capacity. According to the technical scheme, an auxiliary output matching seat is arranged in a pressurized dissolved air outlet conveying pipeline, the auxiliary output matching seat comprises a cylindrical main body matching mounting seat, and an all-through cylindrical main body conveying matching hole is formed in the central axis position of the main body matching mounting seat; the upper end of the main body conveying matching hole is provided with two arc-shaped reinforcing and limiting matching plates which are symmetrically distributed, and the upper ends of the reinforcing and limiting matching plates and the upper end face of the main body matching mounting base are located on the same plane; and a filter screen mounting limiting plate is arranged at the position, between the two reinforcing limiting matching plates, in the main body conveying matching hole. The device has the advantages that gas at the gas outlet position can be buffered and matched, the stability during gas outlet is better, the adhesion effect with impurities in sewage during later use is better, and the more efficient removal effect is achieved.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and in particular to a flotation device with high efficiency in wastewater removal. Background Technology

[0002] In wastewater treatment equipment, dissolved air flotation (DAF) devices are crucial. They are commonly used solid-liquid separation devices that inject or generate numerous fine bubbles into the water, causing impurities to adhere to the bubbles and form floats (less dense than water) that rise to the surface, thus achieving solid-liquid separation. The pressurized dissolved air outlet of the DAF device is typically directly connected to a pipeline. During operation, especially with gases requiring heating, this connection can cause significant damage, resulting in relatively poor structural durability of the pressurized dissolved air outlet, increased maintenance difficulty and costs, and the potential presence of impurities in the gas. If these impurities are not filtered, they can negatively impact the efficiency of the DAF device. Summary of the Invention

[0003] The purpose of this invention is to provide a highly efficient air flotation device. By incorporating an auxiliary structure at the pressurized dissolved air outlet of the air flotation device, in conjunction with a filter screen, it achieves comprehensive filtration of the effluent and provides buffering for the gas at the outlet, ensuring better stability during gas discharge. This results in better adhesion of impurities in wastewater during later use, achieving a more efficient removal effect. During use, it is installed via a sliding engagement mechanism, making installation more convenient. Furthermore, the sliding position can be adjusted as needed to meet different outlet distance requirements, providing greater flexibility in operation.

[0004] The technical solution of the present invention is as follows: A high-efficiency air flotation device is characterized by: an auxiliary output mating seat provided inside the pressurized dissolved gas outlet conveying pipeline; the auxiliary output mating seat includes a cylindrical main body mating mounting seat; a fully open cylindrical main body conveying mating hole is provided at the central axis of the main body mating mounting seat; two symmetrically distributed arc-shaped reinforcing and limiting mating plates are provided at the upper end of the main body conveying mating hole; a filter screen mounting limiting plate is provided inside the main body conveying mating hole, located between the two reinforcing and limiting mating plates; a cylindrical installation precision positioning post is provided at the center of the upper end of the filter screen mounting limiting plate; the filter screen mounting limiting plate and the reinforcing and limiting mating plate are aligned. A filter screen mating and installation area is formed between the panels. The filter screen installation limiting plate has two sets of symmetrically distributed locking and fastening grooves with openings facing the reinforcing limiting mating plate. The lower end of the filter screen installation limiting plate has a heat-resistant safety mating groove, which is cylindrical in shape and communicates with the locking and fastening groove. The outer cylindrical surface of the main body mating mounting base has an integrally formed sliding mounting support plate with uniform circumferential distribution. The outer side of the sliding mounting support plate has an integrally formed combined anti-loosening mating plate. The width of the sliding mounting support plate is smaller than the width of the combined anti-loosening mating plate. The lower end of the main body mating mounting base has a circumferentially distributed arc-shaped mating stop stabilizing groove with an opening facing downwards.

[0005] Furthermore, the upper end of the filter screen mounting limiting plate is provided with a mounting positioning and mating boss, which has a conical structure.

[0006] Furthermore, the lower end of the filter screen mounting limiting plate is provided with an integrally formed reinforcing structure.

[0007] Furthermore, the sliding mounting support plate is located above the position between two adjacent mating stop stabilizing grooves.

[0008] Furthermore, the lower end of the sliding mounting support plate is provided with an inclined guide structure to facilitate installation and fitting.

[0009] Furthermore, the upper end of the combined anti-loosening mating plate is located below the plane of the upper end surface of the main body mating mounting base.

[0010] The beneficial effects of this invention are: This invention incorporates an auxiliary structure at the pressurized dissolved air outlet of the flotation device. This structure, in conjunction with a filter screen, enables comprehensive filtration of the effluent and provides buffering for the gas at the outlet, ensuring greater stability during gas discharge. Furthermore, it allows for better adhesion of impurities in wastewater during later use, resulting in more efficient removal. The device is installed via a sliding engagement mechanism, making installation more convenient and allowing for adjustment based on the required outlet distance, thus providing greater flexibility in operation. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the auxiliary output mating seat in this invention; Figure 2 This is a front view of the auxiliary output mating seat in this invention; Figure 3 This is a schematic diagram of the left side of the auxiliary output mating seat in this invention; Figure 4 This is a schematic diagram of the right side of the auxiliary output mating seat in this invention; Figure 5 This is a top view of the auxiliary output mating seat in this invention; Figure 6 This is a bottom view of the auxiliary output mating seat in this invention; Figure 7 This is a three-dimensional structural diagram of the auxiliary output mating seat in the second direction of the present invention; In the diagram: 1. Main body mounting base, 2. Main body conveying mounting hole, 3. Reinforcing and limiting mounting plate, 4. Filter screen mounting limiting plate, 5. Precision positioning post, 6. Locking and fastening groove, 7. Heat-resistant safety groove, 8. Sliding mounting support plate, 9. Combined anti-loosening mounting plate, 10. Positioning stabilizing groove. Detailed Implementation

[0012] like Figures 1 to 7As shown, a high-efficiency air flotation device for gas removal has an auxiliary output fitting seat inside the pressurized dissolved gas outlet conveying pipe. The auxiliary output fitting seat includes a cylindrical main body fitting mounting base 1. A fully open cylindrical main body conveying fitting hole 2 is located at the central axis of the main body fitting mounting base 1, which is the main body fitting channel communicating with the outlet. Two symmetrically distributed arc-shaped reinforcing and limiting fitting plates 3 are provided at the upper end of the main body conveying fitting hole 2, increasing the strength of the top structure and also acting as a stop, allowing gas from the outlet to enter from the middle position. The upper end of the reinforcing and limiting fitting plate 3 is on the same plane as the upper end surface of the main body fitting mounting base 1. Inside the main body conveying fitting hole 2, between the two reinforcing and limiting fitting plates 3, a filter screen installation limiting plate 4 is provided, which can cooperate with the filter screen for gas filtration and allows the incoming gas to exit downwards from the side, achieving a buffering effect. The filter installation limiting plate 4 has a cylindrical precision positioning post 5 at its upper center. A filter installation area is formed between the filter installation limiting plate 4 and the reinforcing limiting plate 3, allowing for the stacking and installation of multiple filter layers as needed. The filter installation limiting plate 4 has two sets of symmetrically distributed locking grooves 6 with openings facing the reinforcing limiting plate 3, which are used with fasteners for locking and fixing. The lower end of the filter installation limiting plate 4 has a heat-resistant safety groove 7, which is cylindrical in shape, providing reliable heat resistance and better load-bearing strength to the main structure. The heat-resistant safety groove 7 communicates with the locking groove 6, allowing for better airflow at the bottom during heat-resistant use. The outer cylindrical surface of the main body mounting base 1 is provided with an integrally formed sliding mounting support plate 8 that is evenly distributed around the circumference. An integrally formed combined anti-loosening mounting plate 9 is provided on the outer side of the sliding mounting support plate 8, forming a slide rail mounting space between them. The width of the sliding mounting support plate 8 is smaller than the width of the combined anti-loosening mounting plate 9, providing a reliable anti-detachment effect during engagement, ensuring better stability and safety. The lower end of the main body mounting base 1 is provided with evenly distributed, downward-opening arc-shaped engagement stop stabilizing grooves 10, providing a more stable stop engagement during vertical movement, ensuring a larger engagement area and more reliable engagement stability. It adopts a brand-new structural design. By setting an auxiliary structure at the pressurized dissolved air outlet of the flotation device, it can achieve comprehensive filtration of the effluent and buffer the gas at the outlet position, ensuring better stability during gas discharge. In later use, it can better adhere to impurities in wastewater, achieving a more efficient removal effect. During use, it is installed in a snap-fit ​​manner through a sliding fit, which not only makes installation and fit more convenient, but also allows for adjustment of the sliding position as needed, thereby meeting the needs of different outlet distances and providing greater flexibility in use.

[0013] Preferably, the upper end of the filter screen installation limiting plate 4 is provided with an installation positioning and mating boss. The installation positioning and mating boss has a conical structure, which provides higher precision and better stability when installing the filter screen.

[0014] Preferably, the lower end of the filter screen mounting limiting plate 4 is provided with an integrally formed reinforcing structure, which makes the overall load-bearing capacity of the internal structure stronger and the structural stability more reliable.

[0015] Preferably, the sliding mounting support plate 8 is located above the position between two adjacent mating stop stabilizing grooves 10, so that the combined load-bearing capacity of the sliding mating structure is stronger during installation.

[0016] Preferably, the lower end of the sliding mounting support plate 8 is provided with an inclined guide structure that facilitates installation and mating, which provides better guidance during the initial installation and mating process and makes the connection operation more convenient.

[0017] Preferably, the upper end of the combined anti-loosening mating plate 9 is located below the plane of the upper surface of the main body mating mounting base 1, so that the installation position occupies less space and the mating operation during installation is more convenient.

[0018] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements or substitutions without departing from the principles of the present invention, and these improvements or substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A high-efficiency air flotation device, characterized in that: An auxiliary output mating seat is provided inside the pressurized dissolved gas outlet conveying pipeline. The auxiliary output mating seat includes a cylindrical main body mating mounting seat (1). A fully open cylindrical main body conveying mating hole (2) is provided at the central axis position of the main body mating mounting seat (1). Two symmetrically distributed arc-shaped reinforcing and limiting mating plates (3) are provided at the upper end of the main body conveying mating hole (2). The upper end of the reinforcing and limiting mating plate (3) is on the same plane as the upper end surface of the main body mating mounting seat (1). A filter screen installation limiting plate (4) is provided inside the main body conveying mating hole (2) between the two reinforcing and limiting mating plates (3). A cylindrical installation precision positioning column (5) is provided at the center of the upper end of the filter screen installation limiting plate (4). A filter screen mating installation area is formed between the filter screen installation limiting plate (4) and the reinforcing and limiting mating plate (3). The filter screen mounting limiting plate (4) is provided with two sets of symmetrically distributed locking and fastening grooves (6) with openings facing the reinforcing limiting and fastening plate (3). The lower end of the filter screen mounting limiting plate (4) is provided with a heat-resistant safety mating groove (7). The heat-resistant safety mating groove (7) is a cylindrical structure. The heat-resistant safety mating groove (7) is connected to the locking and fastening groove (6). The outer cylindrical surface of the main body mating mounting base (1) is provided with an integrally formed sliding mounting support plate (8) with uniform circumferential distribution. The outer side of the sliding mounting support plate (8) is provided with an integrally formed combined anti-loosening mating plate (9). The width of the sliding mounting support plate (8) is smaller than the width of the combined anti-loosening mating plate (9). The lower end of the main body mating mounting base (1) is provided with a circumferentially distributed arc-shaped mating stop stabilizing groove (10) with openings facing downwards.

2. The air flotation device with high-efficiency removal capability according to claim 1, characterized in that: The upper end of the filter screen installation limiting plate (4) is provided with an installation positioning and mating boss, which is a conical structure.

3. The air flotation device with high-efficiency removal capability according to claim 1, characterized in that: The lower end of the filter screen installation limiting plate (4) is provided with an integrally formed reinforcement structure.

4. The air flotation device with high-efficiency removal capability according to claim 1, characterized in that: The sliding mounting support plate (8) is located above the position between two adjacent mating stop stabilizing grooves (10).

5. The air flotation device with high-efficiency removal capability according to claim 1, characterized in that: The lower end of the sliding mounting support plate (8) is provided with an inclined guide structure to facilitate installation and fitting.

6. The air flotation device with high-efficiency removal capability according to claim 1, characterized in that: The upper end of the combined anti-loosening mating plate (9) is located below the plane of the upper surface of the main body mating mounting base (1).

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