Air floatation liquid removal structure, air floatation separation device, water treatment device

Abstract

The air floatation liquid separation structure comprises a bubble gathering channel (1) and a U-shaped return channel (2). After liquid seal is formed in the U-shaped return channel (2), the foam flows out from the top of the bubble gathering channel (1) and generates large bubbles, and the large bubbles continuously separate liquid. The liquid separated by the foam at the top of the bubble gathering channel (1) sequentially returns from a first end (2-1), a lowest point of the U-shaped return channel (2) and a second end (2-2). Liquid seal is formed in the U-shaped return channel (2), so that the bubbles are prevented from rising upward from the U-shaped return channel (2), and the channel function isolation effect is achieved. The air floatation separation device, the water treatment device and the foam collecting device have the air floatation liquid separation structure. The liquid return is reduced, the foam drying rate and the liquid separation stability are improved, and a new technical idea is provided.

Description

Technical Field

[0001] This invention belongs to the field of air flotation, specifically relating to air flotation desolvation structures, air flotation separation devices, and water treatment devices. Background Technology

[0002] Air flotation is a process that involves introducing air bubbles into a liquid, which then carry impurities to the surface of the liquid.

[0003] Prior art CN202223218555.2 discloses a protein separator for aquaculture, which mentions a bubble-forming component including a bubble-forming block 461. The bubble-forming block 461 is provided with bubble-forming holes 463 and several return holes 462. This design separates bubble-forming and return processes, reducing the situation where the liquid expelled from the upper bubbles is absorbed by the lower bubbles, thus improving the liquid separation efficiency; it is an excellent design. However, in this design, the airflow channels between the bubble-forming holes 463 and the return holes 462 are interconnected. The airflow drives the bubbles to rise from the return holes 462, causing the rising bubbles in the return holes 462 to re-absorb the liquid flowing back down from the return holes 462, reducing the separation efficiency and leaving room for improvement. Summary of the Invention

[0004] To address the above problems, the present invention proposes the following technical solution.

[0005] 1. The air flotation desliming structure is excellent in that it includes a foaming channel (1) and a U-shaped reflux channel (2). The U-shaped return channel (2) has a first end (2-1) and a second end (2-2); The first end (2-1) is higher than the second end (2-2); The first end (2-1) receives the expelled liquid; The second end (2-2) is connected to the bubble channel (1); The second end (2-2) is higher than the lowest point of the U-shaped return channel (2); The second end (2-2) is lower than the upper end of the bubble channel (1).

[0006] Furthermore: the first end (2-1) is directly connected to the bubble channel (1).

[0007] Furthermore: the first end (2-1) is an open port.

[0008] Furthermore: the first end (2-1) is lower than the upper end of the bubble channel (1).

[0009] Furthermore: the second end (2-2) is directly connected to the bubble channel (1).

[0010] Furthermore: the second end (2-2) is indirectly connected to the bubble channel (1).

[0011] Furthermore: the cavity shape of the bubble channel (1) is cylindrical.

[0012] Furthermore: the bubble channel (1) is a straight tube.

[0013] Furthermore: the cross-section of the cavity of the U-shaped reflux channel (2) is circular.

[0014] Furthermore: the U-shaped return channel (2) is generated by the cooperation of multiple parts.

[0015] Furthermore, the air flotation dehydration structure is manufactured using 3D printing.

[0016] 2. The air flotation separation device has a foam collection device. Its advantage is that the foam collection device has the aforementioned air flotation deliquescence structure.

[0017] 3. The water treatment device has a foam collection device, and its advantage is that the foam collection device has the aforementioned air flotation desiccant structure.

[0018] Working principle: A1. When starting, the air flotation foam enters from the bottom of the foaming channel (1) and then enters the U-shaped return channel (2) through the second end (2-2), so that a liquid seal is formed in the U-shaped return channel (2); A2. After the liquid seal is formed in the U-shaped reflux channel (2), the foam flows out from the top of the foaming channel (1) and generates large bubbles, which continue to deliquinate. A3. The liquid that escapes from the top of the foaming channel (1) flows back from the first end (2-1), the lowest point of the U-shaped return channel (2), and the second end (2-2) in sequence. Beneficial effects

[0019] A liquid seal is formed inside the U-shaped reflux channel (2), thereby preventing bubbles from rising from the U-shaped reflux channel (2) and playing a role in channel functional isolation. The structural design can realize the functional isolation between the foaming channel and the reflux channel, reduce the situation of rising bubbles "re-adsorbing reflux liquid", reduce liquid back-carrying, and improve foam drying rate and deliquescence stability.

[0020] It provides new technical ideas.

[0021] Compared to prior art CN202223218555.2, which only uses bubble-forming holes and reflux holes on the bubble-forming block to achieve liquid reflux, the prior art has interconnected gas and liquid paths, and bubbles may flow back through the reflux holes, reducing the liquid removal efficiency. This invention introduces a height difference and a U-shaped reflux channel to form a closed liquid path structure, physically separating the gas and liquid paths, significantly improving liquid removal stability and preventing bubbles from interfering with the reflux process. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of Example 1.

[0023] Figure 2 This is a schematic diagram of Example 2.

[0024] Figure 3 This is a schematic diagram of Example 3.

[0025] Figure 4 This is a schematic diagram of Example 4.

[0026] Figure 5 This is a schematic diagram of Example 5.

[0027] Figure 6 This is a schematic diagram of Example 6.

[0028] Figure 7 This is a schematic diagram of Example 7.

[0029] Figure 8 This is a schematic diagram of Example 8.

[0030] Figure 9 This is a schematic diagram of Example 9.

[0031] Explanation of reference numerals in the attached diagram: 1. Bubble-forming channel; 2. U-shaped reflux channel; 2-1. First end; 2-2. Second end; 3. Enclosure space; 4. Pipe; 5. Bubble-forming cavity; 6. Bubble refiner; 7. Air pump. Specific Implementation

[0032] Example 1: As Figure 1 The air flotation desliming structure is excellent in that it includes a foaming channel (1) and a U-shaped reflux channel (2). The U-shaped return channel (2) has a first end (2-1) and a second end (2-2); The first end (2-1) is higher than the second end (2-2); The second end (2-2) is higher than the lowest point of the U-shaped return channel (2); The second end (2-2) is connected to the bubble channel (1); The second end (2-2) is higher than the lower end of the bubble channel (1); The first end (2-1) is lower than the upper end of the bubble channel (1).

[0033] The first end (2-1) is an open port.

[0034] Example 2: As Figure 2 The air flotation dehydration structure, based on Example 1, adds an enclosure space 3.

[0035] Example 3: As Figure 3The air flotation dehydration structure, based on Example 2, has the enclosure space 3 formed by the wall of the pipe 4.

[0036] Example 4: Figure 4 The air flotation separation device has a foam collection device. Its advantage is that the foam collection device has the air flotation deliquescence structure described in Example 3; it also has a bubble stacking chamber (5), and a bubble refiner (6) is located below the bubble stacking chamber (5). The bubble refiner (6) is connected to the air pump (7) through an air pipe.

[0037] Example 5: Figure 5 The air flotation desliming structure differs from that in Example 3 in that the second end (2-2) is indirectly connected to the foaming channel (1).

[0038] Example 6: As Figure 6 The air flotation dehydration structure differs from that in Example 5 in that it has an inverted conical cavity at the upper end.

[0039] Example 7: Figure 7 The air flotation dehydration structure differs from that in Example 6 in that the upper end of the inverted conical cavity is higher than that of tube 4.

[0040] Example 8: As Figure 8 The air flotation desolvation structure differs from that in Example 1 in that the foaming channel (1) is a straight pipe, with the first end (2-1) directly connected to the foaming channel (1).

[0041] Example 9: As Figure 9 The air flotation desliming structure differs from that in Example 8 in that the bubble channel (1) is a bent pipe.

Claims

1. An air flotation dehydration structure, characterized in that: It includes a bubble channel (1) and a U-shaped reflux channel (2); The U-shaped return channel (2) has a first end (2-1) and a second end (2-2); The first end (2-1) is higher than the second end (2-2); The first end (2-1) receives the expelled liquid; The second end (2-2) is connected to the bubble channel (1); The second end (2-2) is higher than the lowest point of the U-shaped return channel (2); The second end (2-2) is lower than the upper end of the bubble channel (1); After a liquid seal is formed in the U-shaped reflux channel (2), foam flows out from the top of the foaming channel (1) and generates large bubbles, which continue to deliquinate. The liquid that escapes from the top of the foaming channel (1) flows back sequentially from the first end (2-1), the lowest point of the U-shaped return channel (2), and the second end (2-2); A liquid seal is formed inside the U-shaped reflux channel (2), thereby preventing air bubbles from rising from the U-shaped reflux channel (2) and playing a role in channel functional isolation.

2. The air flotation dehydration structure as described in claim 1, characterized in that: The first end (2-1) is lower than the upper end of the bubble channel (1).

3. The air flotation dehydration structure as described in claim 1, characterized in that: The second end (2-2) is directly connected to the bubble channel (1).

4. The air flotation dehydration structure as described in claim 1, characterized in that: The second end (2-2) is indirectly connected to the bubble channel (1).

5. The air flotation dehydration structure as described in claim 1, characterized in that: The first end (2-1) is an open port.

6. The air flotation dehydration structure as described in claim 1, characterized in that: The bubble channel (1) is a straight tube.

7. The air flotation dehydration structure as described in claim 1, characterized in that: The cross-section of the cavity of the U-shaped reflux channel (2) is circular.

8. The air flotation dehydration structure as described in claim 1, characterized in that: The first end (2-1) is directly connected to the bubble channel (1).

9. An air flotation separation device, comprising a foam collection device, characterized in that: The foam collection device has the air flotation deliquescence structure as described in claim 1.

10. A water treatment device, comprising a foam collection device, characterized in that: The foam collection device has the air flotation deliquescence structure as described in claim 1.

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