An air flotation device that can improve dissolved air efficiency

By designing spirally rising dividing plates and stirring scrapers in the air flotation device, the bubbles are refined and evenly distributed, solving the problem of low dissolved air efficiency in the air flotation device and enhancing the separation effect of sludge and scum.

CN224279830UActive Publication Date: 2026-05-26GUOZHONG AIHUA TIANJIN MUNICIPAL ENCIRONMENT ENG

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUOZHONG AIHUA TIANJIN MUNICIPAL ENCIRONMENT ENG
Filing Date
2025-05-16
Publication Date
2026-05-26

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Abstract

This utility model relates to the field of dissolved air flotation (DAF) equipment technology, and particularly to a DAF device that can improve dissolved air efficiency. The DAF device includes: a treatment tank body and a DAF assembly; the DAF assembly includes: an air pump, a first air pipe, a second air pipe, an air storage tank, and a mounting frame; the mounting frame is located above the DAF zone and is mounted on the treatment tank body; the air pump is fixed to the top of the mounting frame; the top of the first air pipe is connected to the air pump; there are multiple second air pipes, each with its top connected to the first air pipe; the bottom ends of both the first and second air pipes are connected to the air storage tank; multiple dividing plates are evenly arranged on the lower outer wall of the first and second air pipes. This utility model, through the dividing plates on the first and second air pipes, allows the air bubbles to be refined and float evenly, fully contacting the sludge and scum, thereby improving dissolved air efficiency and enhancing the effect of separating sludge and scum.
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Description

Technical Field

[0001] This utility model relates to the field of air flotation equipment technology, and in particular to an air flotation device that can improve dissolved air efficiency. Background Technology

[0002] Air flotation devices introduce air into water in the form of tiny bubbles, causing the bubbles to adhere to suspended particles in the water, forming a three-phase mixture of water, air, and particles. Once the particles adhere to the bubbles, their density is less than that of water, so they float to the surface, forming a sludge layer that is then separated from the water.

[0003] A flotation device is designed to improve dissolved air efficiency. It can further refine the air bubbles and distribute them evenly, thereby improving dissolved air efficiency and enhancing the separation effect of sludge and scum. Summary of the Invention

[0004] An air flotation device that can improve dissolved air efficiency includes: a treatment tank body and an air flotation component;

[0005] The treatment tank body includes: a dosing zone, an air flotation zone, a treatment zone, and a sludge zone;

[0006] The air flotation assembly includes: an air pump, a first air pipe, a second air pipe, an air storage tank, and a fixing frame;

[0007] The fixed frame is located above the air flotation zone and is mounted on the treatment tank body;

[0008] The air pump is fixed to the top of the mounting bracket;

[0009] The first air tube passes through the fixing frame, and the top of the first air tube is connected to the air pump;

[0010] The second trachea consists of multiple tubes, each connected at the top to the first trachea, and is evenly distributed in a circle.

[0011] The bottom ends of the first and second air pipes are both connected to air storage tanks; the peripheral wall of the air storage tanks is provided with uniform air holes.

[0012] Multiple segmented plates are evenly arranged on the lower outer wall surface of the first and second trachea, and the multiple segmented plates are spirally ascending as a whole.

[0013] Specifically, a support frame is installed in the dosing area, a first motor is installed at the bottom of the support frame, a stirring rod is connected to the output end of the first motor, and a paddle is connected to the stirring rod.

[0014] Specifically, a second motor is fixedly installed on one side of the processing area. The output shaft of the second motor passes through the processing tank body and is connected to two symmetrically arranged scrapers.

[0015] The beneficial effects of this utility model are as follows:

[0016] This invention uses dividing plates on the first and second air pipes to refine the air bubbles and make them float evenly, allowing them to fully contact the sludge and scum, thereby improving the dissolved air efficiency and enhancing the separation effect of sludge and scum. Attached Figure Description

[0017] Figure 1 This is the overall view of the utility model Figure 1 .

[0018] Figure 2 This is the overall view of the utility model Figure 2 .

[0019] Figure 3 This is the internal view of the treatment pool body of this utility model. Figure 1 .

[0020] Figure 4 This is the internal view of the treatment pool body of this utility model. Figure 2 .

[0021] Figure 5 This is a view of the air pump of this utility model.

[0022] Figure 6 This is a view of the first trachea of ​​this utility model.

[0023] Figure 7 This is a view of the second trachea of ​​this utility model.

[0024] Figure 8 This is a view of the separator of this utility model. Detailed Implementation

[0025] Preferred embodiments of this utility model will be described in detail with reference to the accompanying drawings, which will facilitate the implementation of these embodiments by those skilled in the art. However, this utility model can be implemented in various different forms, and therefore is not limited to the embodiments described below. Furthermore, for clarity, components not connected to this utility model will be omitted from the drawings.

[0026] An air flotation device that can improve dissolved air efficiency includes: a treatment tank body and an air flotation component;

[0027] like Figure 1-4 As shown, the treatment tank body 1 includes: a chemical dosing zone 11, an air flotation zone 12, a treatment zone 13, and a sludge zone 14;

[0028] A support 111 is installed in the dosing area 11. A first motor 112 is installed at the bottom of the support 111. The output end of the first motor 112 is connected to a stirring rod 114. A paddle 113 is connected to the stirring rod 114.

[0029] A second motor 131 is fixedly installed on one side of the processing area 13. The output shaft of the second motor 131 passes through the processing tank body 1 and is connected to two symmetrically arranged scrapers 132.

[0030] like Figure 5-8 As shown, the air flotation assembly includes: an air pump 21, a first air pipe 22, a second air pipe 23, an air storage tank 24, and a fixing frame 25;

[0031] The fixed frame 25 is located above the air flotation zone 12 and is mounted on the treatment tank body 1;

[0032] The air pump 21 is fixed to the top of the mounting bracket 25;

[0033] The first air pipe 22 passes through the fixing frame 25, and the top of the first air pipe 22 is connected to the air pump 21;

[0034] The second trachea 23 has multiple branches, each of which is connected to the first trachea 22 at its top and is evenly distributed around the circumference.

[0035] The bottom ends of the first air pipe 22 and the second air pipe 23 are both connected to an air storage tank 24; the peripheral wall of the air storage tank 24 is provided with uniform air holes 241; the gas generated by the air pump 21 flows into the air storage tank 24 through the first air pipe 22 and the second air pipe 23, and then flows out from the air holes 241.

[0036] Multiple dividing plates 231 are evenly arranged on the lower outer wall of the first air pipe 22 and the second air pipe 23. The multiple dividing plates 231 are spirally rising in an overall manner. The dividing plates 231 are used to divide the air bubbles flowing out of the air holes 241 on the one hand, and on the other hand, they also make the air bubbles float evenly and fully contact the sludge and scum, thereby improving the dissolved air efficiency.

[0037] In the description of this technical solution, it should be specifically noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" used herein should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model creation based on the specific circumstances.

Claims

1. A flotation device for improving dissolved air efficiency, comprising: Treatment tank body and air flotation components; The treatment tank body (1) includes: a dosing zone (11), an air flotation zone (12), a treatment zone (13), and a sludge zone (14). The air flotation assembly is characterized by comprising: an air pump (21), a first air pipe (22), a second air pipe (23), an air storage tank (24), and a fixing frame (25). The fixed frame (25) is located above the air flotation zone (12) and is mounted on the treatment tank body (1); The air pump (21) is fixed to the top of the mounting bracket (25); The first air tube (22) passes through the fixing frame (25), and the top of the first air tube (22) is connected to the air pump (21); The second trachea (23) has multiple branches, each of which is connected to the first trachea (22) at the top and is evenly distributed around the circumference. The bottom ends of the first air pipe (22) and the second air pipe (23) are both connected to an air storage tank (24); the peripheral wall of the air storage tank (24) is provided with uniform air holes (241). Multiple segmented pieces (231) are evenly arranged on the lower outer wall surface of the first trachea (22) and the second trachea (23), and the multiple segmented pieces (231) are spirally ascending as a whole.

2. The air flotation device for improving dissolved air efficiency according to claim 1, characterized in that: A support (111) is installed in the dosing area (11). A first motor (112) is installed at the bottom of the support (111). A stirring rod (114) is connected to the output end of the first motor (112). A paddle (113) is connected to the stirring rod (114).

3. The air flotation device for improving dissolved air efficiency according to claim 1, characterized in that: A second motor (131) is fixedly installed on one side of the processing area (13). The output shaft of the second motor (131) passes through the processing tank body (1) and is connected to two symmetrically arranged scrapers (132).