Air flotation foam collecting structure, air flotation separator, filter box, aquatic organism feeding system and sewage treatment system

Abstract

The air floatation foam collecting structure is provided with a foam collecting container (DPQ), and comprises a secondary accommodating cavity (XQQ) and a foam outlet pipe (XG); the secondary containing cavity (XQQ) is communicated with the bubble collecting container (DPQ); the bubble outlet pipe (XG) is provided with a first opening (XG-1) and a second opening (XG-2), the first opening (XG-1) is located inside the secondary containing cavity (XQQ), and the second opening (XG-2) is located outside the secondary containing cavity (XQQ) and outside the bubble collecting container (DPQ); and under the condition that the secondary accommodating cavity (XQQ) is filled with liquid, the first opening (XG-1) is blocked by the liquid in the secondary accommodating cavity (XQQ). According to the air flotation separator, the foam collecting structure is the air flotation foam collecting structure. A filter box or an aquatic organism feeding system or a sewage treatment system is provided with the air flotation separator. The foam discharging device is more stable in foam discharging, more stable in foam yield, not prone to burst, simple in structure, easy to debug, low in cost and ingenious in design, and a new technical thought is provided.

Description

Technical Field

[0001] The present invention belongs to the field of air flotation, and in particular relates to an air flotation foam collection structure, an air flotation separator, a filter box, an aquatic organism breeding system, and a sewage treatment system. Background Art

[0002] Existing flotation separation purifiers generally use bubble gas lift to partially deliquify and concentrate the flotation foam under the action of gravity to discharge dry bubbles, carrying out substances in the liquid such as but not limited to proteins, fluorescent agents, organic matter, bleaching agents, mineral particles, dust suspended in the water, etc., which can purify the liquid or extract substances in the liquid; foaming substances such as proteins, fluorescent agents, organic matter, bleaching agents are important sources of water pollution. After the protein is decomposed by bacteria, it will produce ammonia nitrogen, nitrite, nitrate and other biologically toxic substances.

[0003] Prior to the present application, the applicant invented the flotation foam collection tube described in application number CN202321599552X, which significantly improved the adaptability of flotation, allowing it to be used in fresh water with a very low content of foaming substances and difficult to foam. This is a breakthrough not seen in hundreds of years, and it has wide adaptability, simple structure, practicality, environmental protection, and low cost.

[0004] However, there are still the following problems that need to be improved:

[0005] Technical problem 1. When improper installation, unexpected rise in liquid level, sudden increase in foam production or sudden increase in the content of foaming substances occurs, it is easy to cause bursting, discharging a large number of wet bubbles that have not been dehydrated, resulting in loss of the effect of concentrating and draining sewage, and causing excessive discharge of liquid; there is a need for improvement.

[0006] Technical Problem 2: After dehydration, the liquid film is relatively thin and easily broken, which affects transportation and causes unstable transport and discharge bubbles; there is a need for improvement.

[0007] Technical Problem 3: Since the foaming material, gas volume and liquid level will cause changes in foam production, the foam production will be unstable; there is a need for improvement.

[0008] Technical problem 4: After dehydration, the liquid film is relatively thin and easily broken, which affects transportation and causes unstable transport and discharge bubbles. Therefore, very patient adjustments are required to ensure that the transported liquid film is thick enough, but it cannot be dehydrated too little (too little dehydration will lose the concentration and extraction effect). Therefore, the thickness of the liquid film must be guaranteed within a relatively narrow range, so debugging is difficult, time-consuming and labor-intensive; there is a need for improvement. Utility Model Content

[0009] To solve the above problems, the present invention adopts the following technical solutions.

[0010] A1. The air flotation foam collection structure has a bubble collection container (DPQ). Its design excellence lies in: including a secondary chamber (XQQ) and a bubble outlet pipe (XG);

[0011] The secondary cavity (XQQ) is connected to the bubble collecting container (DPQ);

[0012] The bubble outlet pipe (XG) has a first opening (XG-1) and a second opening (XG-2), wherein the first opening (XG-1) is located inside the secondary cavity (XQQ), and the second opening (XG-2) is located outside the secondary cavity (XQQ) and outside the bubble collecting container (DPQ);

[0013] When the secondary chamber (XQQ) is filled with liquid, the first opening (XG-1) is blocked by the liquid in the secondary chamber (XQQ).

[0014] A1.2. Based on A1, the bubble outlet pipe (XG) and the bubble collecting container (DPQ) are fixedly connected.

[0015] A1.3. Based on A1, when stably installed, the bubble tube (XG) can move up and down relative to the ground.

[0016] A1.4. Based on A1.3, the bubble outlet pipe (XG) and the bubble collecting container (DPQ) are connected in a sealed and movable manner.

[0017] A1.5. Based on A1.3, the bubble collecting container (DPQ) can be extended and retracted up and down.

[0018] A1.6. Based on A1.3, the bubble collecting container (DPQ) can be extended and retracted up and down.

[0019] A1.7. Based on A1, a discharge electrode is installed in the secondary chamber (XQQ) or the bubble collecting container (DPQ). The discharge electrode is connected to a high-voltage power supply. The electrode generates an arc to break the foam about to enter the secondary chamber (XQQ) into liquid, and the liquid flows into the secondary chamber (XQQ).

[0020] A1.8. Based on A1, the edge of the first opening (XG-1) has serrations, grooves, or small holes.

[0021] A1.9. Based on A1, the edge of the first opening (XG-1) is smooth.

[0022] A1.10. Based on A1, the secondary chamber (XQQ) is connected to the bubble collecting container (DPQ), either fixedly or movably.

[0023] A1.11. Based on A1, the secondary chamber (XQQ) is connected to the bubble tube (XG), either fixedly or movably.

[0024] A1.12. Based on A1, the secondary cavity (XQQ) is located in the cavity of the bubble collecting container (DPQ).

[0025] A1.13. Based on A1, the secondary cavity (XQQ) is connected to the cavity of the bubble collecting container (DPQ) through a large number of small holes (XK).

[0026] A1.14. Based on A1, a bubbler is provided in the secondary cavity (XQQ).

[0027] A1.14.1. Based on A1, the bubble generating device in the secondary cavity (XQQ) is a bubble refiner.

[0028] A1.14.1. Based on A1, the secondary cavity (XQQ) floats inside the bubble collection container (DPQ).

[0029] A2, an air flotation separator, including a foam collection structure and a bubble source, has an excellent design in that the foam collection structure is the air flotation foam collection structure described in A1.

[0030] A3. Based on A2, the bubble source is an air pump, venturi tube or application number CN202223298663.5 The disclosed gas-liquid mixing tube.

[0031] A4, the filter box, has an excellent design in that it uses the flotation foam collection structure described in A1 to collect the flotation foam.

[0032] A5. The aquatic organism breeding system has an excellent design in that it uses the flotation foam collection structure described in A1 to collect the flotation foam.

[0033] A6. The sewage treatment system has an excellent design in that it uses the flotation foam collection structure described in A1 to collect flotation foam.

[0034] Working principle: 1. When improper installation or unexpected rise in liquid level or sudden increase in foam production or sudden increase in pressure or sudden increase in the content of foaming substance occurs, a large number of wet bubbles carry a large amount of liquid into the secondary cavity (XQQ), causing the liquid to fill the bubble outlet tube (XG), resulting in liquid blocking the bubble outlet tube (XG), generating hydraulic pressure, and generating a liquid column in the bubble outlet tube (XG), generating a large pressure, resulting in the foam being unable to continue to be pushed out; thereby preventing bursting; solving technical problem 1.

[0035] 2. During normal operation, the partially dehydrated dry bubble enters the secondary chamber (XQQ) and turns into liquid. Under the action of air pressure, it turns into foam or liquid film and is discharged from the bubble outlet tube (XG). The principle of the liquid in the secondary chamber (XQQ) turning into a liquid film is explained as follows: when the liquid level is blocked at the first opening (XG-1), the airflow lifts the liquid in the bubble outlet tube (XG) upward, and the liquid level in the secondary chamber (XQQ) drops slightly. A liquid bridge is formed between the first opening (XG-1) and the liquid level in the secondary chamber (XQQ). The air pressure squeezes and cuts the liquid bridge from the side, causing the liquid in the bubble outlet tube (XG) to appear The liquid film is formed into a film or foam (depending on the structure of the first opening (XG-1)), and a secondary film or foam is formed. Since the liquid film is thicker when it is formed into a film or foam for the second time, it is not easy to break and is more easily transported by the air flow. Therefore, the technical solution of the present application is more stable in liquid discharge compared with the prior art, and solves technical problem 2. Since the film or foam produced by the secondary film or foam formation is the previous dry foam, the secondary film or foam formation does not affect the content of the foaming substance in the sewage discharge. Compared with the prior art, the difficulty of adjustment is greatly reduced, and technical problem 4 is solved.

[0036] 3. During normal operation, when the pressure is within the appropriate range and the liquid level in the secondary cavity (XQQ) blocks the first opening (XG-1), the internal pressure of the bubble collecting container (DPQ) is increased, thereby controlling the foam production. Therefore, the technical solution of this application has a more stable foam production compared to the prior art, and solves technical problem 3. Beneficial effects

[0037] In summary, the present invention has more stable bubble discharge, more stable bubble production, is not prone to bursting, has a simple structure, is easy to debug, and has low cost. It solves a large number of technical problems with a simple structure and has an exquisite design, providing new technical ideas. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a schematic diagram of Example 1.

[0039] Figure 2 This is a schematic diagram of Example 2.

[0040] Figure 3 This is a schematic diagram of Example 3.

[0041] Figure 4 This is a schematic diagram of Example 4.

[0042] Figure 5 This is a schematic diagram of Example 5.

[0043] Figure 6 This is a schematic diagram of Example 6.

[0044] Figure 7 This is a schematic diagram of Example 7.

[0045] Figure 8 This is a schematic diagram of Example 8.

[0046] Figure 9 This is a schematic diagram of Example 9.

[0047] Figure 10 This is a schematic diagram of Example 10.

[0048] Figure 11 This is a schematic diagram of Example 11.

[0049] Figure 12 This is a schematic diagram of Example 11. DETAILED DESCRIPTION

[0050] Example 1, as Figure 1 As shown, the air flotation foam collection structure has a bubble collection container (DPQ). Its design excellence lies in: including a secondary cavity (XQQ) and a bubble outlet pipe (XG);

[0051] The secondary cavity (XQQ) is connected to the bubble collecting container (DPQ);

[0052] The bubble outlet pipe (XG) has a first opening (XG-1) and a second opening (XG-2), wherein the first opening (XG-1) is located inside the secondary cavity (XQQ), and the second opening (XG-2) is located outside the secondary cavity (XQQ) and outside the bubble collecting container (DPQ);

[0053] When the secondary cavity (XQQ) is filled with liquid, the first opening (XG-1) is blocked by the liquid in the secondary cavity (XQQ); the secondary cavity (XQQ) floats inside the bubble collecting container (DPQ).

[0054] Example 2, as Figure 2 As shown, the flotation separator includes an air pump (QB), a refiner (QT), and a flotation foam collection structure. The flotation foam collection structure is different from that of Example 1 in that: the bubble outlet pipe (XG) and the bubble collecting container (DPQ) are fixedly connected by a first connecting block (LJA); the lower end of the bubble collecting container (DPQ) is located in the water body (ST), and the refiner (QT) is located in the bubble collecting container (DPQ).

[0055] Example 3, as Figure 3 As shown, the air flotation separator is different from that of Example 2 in that the secondary chamber (XQQ) and the bubble outlet pipe (XG) are fixedly connected by a second connecting block (LJB).

[0056] Example 4: Figure 4 As shown, the air flotation separator is different from that of Example 3 in that the bubble outlet pipe (XG) is a curved pipe and a sewage tank (WSC) is provided for storing sewage.

[0057] Example 5: Figure 5 As shown, the flotation separator is different from Example 3 in that: the bubble outlet pipe (XG) is a straight pipe, the bubble outlet pipe (XG) is surrounded by a splash-proof space, the splash-proof space is connected to the sewage pipe (PWG), and the foamed sewage discharged from the bubble outlet pipe (XG) is discharged from the sewage pipe (PWG) to the sewage tank (WSC).

[0058] Example 6: Figure 6 As shown, the flotation separator is different from Example 5 in that a movable sealing connection (KDMF) is formed between the bubble outlet pipe (XG) and the bubble collecting container (DPQ). Specifically, an elastic O-ring is used to achieve sealing. The elastic O-ring contacts the outer wall of the bubble outlet pipe (XG). When the bubble outlet pipe (XG) is manually operated, the bubble outlet pipe (XG) can move up and down; when the bubble outlet pipe (XG) is not operated, the bubble outlet pipe (XG) is fixed by the friction force of the contact surface of the sealing ring.

[0059] Example 7, Figure 7 As shown, the air flotation separator is different from that of Example 5 in that the bubble collecting container (DPQ) is a telescopic structure with two ends connected.

[0060] Example 8, Figure 8 As shown, the air flotation separator is different from Example 7 in that the secondary cavity (XQQ) and the cavity of the bubble collecting container (DPQ) are connected through a large number of small holes (XK).

[0061] Example 9: Figure 9 As shown, the air flotation separator is different from that of Example 1 in that the secondary cavity (XQQ) is located outside the cavity of the bubble collecting container (DPQ).

[0062] Example 10: Figure 10 As shown, the air flotation separator is different from Example 9 in that a valve (F) is provided below the secondary chamber (XQQ) to facilitate the discharge of sediment deposited in the secondary chamber (XQQ).

[0063] Example 11: Figure 11 As shown, the air flotation separator is different from Example 9 in that a bubbling device is provided in the secondary chamber (XQQ), the bubbling device is a refiner (QT), and the bubbling device is connected to the air pump (QB) via an air valve (J).

[0064] Example 12: Figure 12 As shown, the air flotation separator is different from Example 9 in that the bubble collecting container (DPQ) has a tapered portion and the bottom of the secondary cavity (XQQ) is tapered.

[0065] Example 13, air flotation separator, which is different from Example 12 in that the conical portion of the bubble collecting container (DPQ) is an eccentric cone, and the bottom of the secondary cavity (XQQ) is also an eccentric cone.

[0066] Example 14: A filter box, an aquatic organism breeding system, or a sewage treatment system uses the flotation separator described in Examples 2-9 to separate proteins or other macromolecules that can be separated by flotation from water.

Claims

1. Air flotation foam collection structure, with a bubble collection container (DPQ), characterized by: Including secondary cavity (XQQ) and bubble tube (XG); The secondary cavity (XQQ) is connected to the bubble collecting container (DPQ); The bubble outlet pipe (XG) has a first opening (XG-1) and a second opening (XG-2), wherein the first opening (XG-1) is located inside the secondary cavity (XQQ), and the second opening (XG-2) is located outside the secondary cavity (XQQ) and outside the bubble collecting container (DPQ); When the secondary chamber (XQQ) is filled with liquid, the first opening (XG-1) is blocked by the liquid in the secondary chamber (XQQ).

2. The air flotation foam collection structure according to claim 1, characterized in that: The secondary cavity (XQQ) floats inside the bubble collection container (DPQ).

3. The air flotation foam collection structure according to claim 1, characterized in that: The secondary chamber (XQQ) is connected to the bubble collecting container (DPQ).

4. The air flotation foam collection structure according to claim 1, characterized in that: The secondary chamber (XQQ) is connected to the bubble outlet pipe (XG).

5. The air flotation foam collection structure according to claim 1, characterized in that: The secondary cavity (XQQ) is located in the cavity of the bubble collecting container (DPQ).

6. An air flotation separator, including a foam collection structure and a bubble source, characterized in that: The foam collection structure is the air-floating foam collection structure according to claim 1.

7. Filter box, characterized by: A flotation separator according to claim 6.

8. Aquatic organism breeding system, characterized by: A flotation separator according to claim 6.

9. Sewage treatment system, characterized by: A flotation separator according to claim 6.

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