Adjusting tank based on aeration bias

Abstract

The utility model discloses a regulating tank based on aeration bias, which comprises a tank body, a waste liquid inlet pipe and a waste liquid outlet pipe are arranged on the side wall of the tank body, a plurality of bias pipes are arranged at the bottom of the tank body, each bias pipe extends along the length direction of the tank body, and all the bias pipes are arranged side by side along the width direction of the tank body. The first arranged offset pipe is close to the long side wall of one side of the pool body, and the last arranged offset pipe is close to the middle line of the pool body in the width direction; the ends, on the same side, of all the bias pipes are connected to a distribution pipe in a converged mode, and the distribution pipe is communicated with an external high-pressure air source through a high-pressure air pipe. A plurality of air outlet pipes are uniformly distributed and connected on each bias pipe, an air outlet disc is screwed on each air outlet pipe, and a plurality of aeration heads capable of steering are communicated on the air outlet disc. By means of the arrangement of the bias pipe and the aeration head of the structure, annular surging of mixed liquid in the tank body can be achieved, and the aeration spraying direction can be changed.

Description

Technical Field

[0001] The utility model relates to the field of wastewater treatment, in particular to a regulating tank based on aeration bias. Background Art

[0002] In the field of wastewater treatment, an aeration system is often needed in the process of biological oxidation that continuously consumes oxygen. Traditional aeration systems usually use membrane-type microporous aeration disks to implement aeration. Its main purpose is to use aeration to generate mixing and maintain a certain dissolved oxygen concentration in the wastewater to facilitate the continued biological oxidation.

[0003] For some specific wastewater, such as sodium hypochlorite decolorization wastewater (wastewater after decolorization of fabrics and clothes), before using the activated sludge method to remove COD and sulfite, it is necessary to evenly mix the sodium hypochlorite decolorization wastewater with clean water to evenly dilute the wastewater. The existing diaphragm microporous aeration disc is generally fixed on the air pipe by threaded connection. After installation, the whole cannot be turned, which limits the aeration direction. Moreover, most aeration discs are arranged in a uniformly distributed manner, which makes it difficult to form a circular surge, which is not conducive to overall uniform mixing.

[0004] To this end, how to design a regulating pond, by setting up an aeration system with adjustable aeration direction, and using the microbubble flow formed by aeration to form a circular surge in the pond body, and ultimately achieve the purpose of overall uniform mixing, is the technical problem that this application needs to solve. Utility Model Content

[0005] The main purpose of the utility model is to propose a regulating tank based on aeration bias, aiming to solve the problems of the existing diaphragm type microporous aeration disk mentioned in the above background technology, such as limited aeration direction, inability to form annular surge as a whole, and difficulty in fully achieving uniform mixing.

[0006] In order to solve the above problems, the utility model proposes an aeration bias-based regulating tank, comprising a tank body, wherein a waste liquid inlet pipe and a waste liquid outlet pipe are arranged on the side wall of the tank body, and a plurality of offset pipes are arranged at the bottom of the tank body, each offset pipe extends along the length direction of the tank body, and all the offset pipes are arranged side by side along the width direction of the tank body, the first offset pipe is close to one long side wall of the tank body, and the last offset pipe is close to the center line of the tank body along the width direction; all the offset pipes are selected to be connected to a distribution pipe at one end on the same side, and the distribution pipe is connected to an external high-pressure air source through a high-pressure air pipe; each offset pipe is evenly connected to a plurality of outlet pipes, each outlet pipe is screwed with an outlet disk, and the outlet disk is connected to a plurality of steerable aeration heads.

[0007] In some embodiments, the waste liquid inlet pipe and the waste liquid outlet pipe are arranged on the other long side wall of the tank body, and the waste liquid inlet pipe is arranged close to the bottom of the tank body, while the waste liquid outlet pipe is arranged close to the middle and upper part of the tank body.

[0008] In some embodiments, each offset tube is connected to a support column below the first outlet tube and the last outlet tube to support the offset tube so that it can be suspended at the bottom of the pool body.

[0009] In some embodiments, the air outlet disk is constructed as a disk-shaped shell, which encloses a closed air cavity, and a downward connecting air pipe with external threads is constructed at the bottom center of the disk-shaped shell to be threadedly connected to the air outlet pipe.

[0010] In some embodiments, the aeration head includes a base tube, a direction-adjusting ball tube and a plate-type microporous rubber aerator. The base tube is fixedly connected to the top of the disc-shaped shell and is connected to the air cavity. A ball groove is constructed on the top of the base tube. The direction-adjusting ball tube constructs a spherical turning portion that is spherically connected to the ball groove. The direction-adjusting ball tube also constructs a columnar air outlet portion. The plate-type microporous rubber aerator is sealed and installed at the outlet end of the columnar air outlet portion.

[0011] In some embodiments, the plate-type microporous rubber aerator includes a mounting base and a rubber microporous aeration plate fixedly connected to the mounting base. The connecting end of the mounting base is provided with an external thread, and the inner wall of the columnar air outlet is provided with an internal thread matching the external thread.

[0012] In some embodiments, the steering ball tube on the offset tube arranged near the long side wall of the pool body is arranged vertically, while the steering ball tube on the offset tube arranged away from the long side wall of the pool body is inclined at a slight angle away from the long side wall of the pool body.

[0013] Beneficial effects:

[0014] In the present invention, since the first offset tube is arranged close to one long side wall of the pool body, and the last offset tube is arranged close to the center line of the pool body in the width direction, and each offset tube extends in the length direction of the pool body, and all the offset tubes are arranged side by side in the width direction of the pool body, the offset tube forms an offset setting at the bottom of the pool body, and is offset to one side in the length direction of the pool body. In this way, after the high-pressure gas source enters the aeration head through the offset offset tube, the high-pressure gas source forms an upwardly offset microbubble flow after aeration. Under the action of the upwardly offset microbubble flow, an overall annular surge effect is formed in the pool body, thereby realizing the circulation of wastewater in the pool body, and improving the mixing efficiency and uniformity of wastewater and clean water.

[0015] The aeration head of the utility model can realize steering, so that the injection direction of the micro-bubble flow formed by the high-pressure air after aeration can be flexibly adjusted according to the actual treatment requirements, thereby enhancing the adaptability and treatment effect of the aeration system;

[0016] The utility model screws an air outlet disk on each air outlet pipe, and arranges multiple aeration heads on each air outlet disk, thereby realizing that a single air outlet pipe is equipped with multiple aeration heads. Compared with the existing single air outlet pipe equipped with a single aeration head, after the multiple aeration heads are arranged, more independent microbubble flows can be formed, which is more conducive to forming annular surge. At the same time, when a problem occurs in a certain aeration head, the other remaining aeration heads on the same air outlet disk can continue to work, avoiding the situation where a single air outlet pipe is equipped with a single aeration head like the existing structure, when the single aeration head fails, the entire single air outlet pipe stops working. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the layout of the offset pipe in the regulating tank of the utility model;

[0019] Figure 2 It is a schematic diagram of the assembly connection of the offset pipe, high-pressure air pipe, distribution pipe, air outlet pipe, air outlet plate, and aeration head of the utility model (for the sake of clarity and simplicity, the distribution pipe is only shown at one end of the offset pipe, and the other end is not shown);

[0020] Figure 3 It is a partial cross-sectional schematic diagram of the utility model after the gas outlet plate and the aeration head are assembled and connected (for the sake of clarity and simplicity, a plate-type microporous rubber aerator is installed on one aeration head, and not installed on the other aeration heads);

[0021] Figure 4 It is a cross-sectional schematic diagram of the plate-type microporous rubber aerator of the utility model.

[0022] The following are the descriptions of the reference numerals:

[0023] 1. Tank body; 2. Waste liquid inlet pipe; 3. Waste liquid outlet pipe; 4. High-pressure air pipe; 5. Distribution pipe; 6. Bias pipe; 7. Support column; 8. Air outlet pipe;

[0024] 9. Air outlet plate; 901. Air cavity; 902. Air pipe connection;

[0025] 10. Aeration head; 101. Base pipe;

[0026] 102, a ball-adjusting tube; 1021, a spherical turning portion; 1022, a columnar air outlet portion;

[0027] 103. Plate-type microporous rubber aerator; 1031. Mounting base; 1032. Rubber microporous aeration plate. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The utility model provides Figure 1-Figure 4 The illustrated regulating tank based on aeration bias includes a tank body 1, and a waste liquid inlet pipe 2 and a waste liquid outlet pipe 3 are arranged on the side wall of the tank body 1. Wastewater enters the tank body 1 through the waste liquid inlet pipe 2, and clean water is introduced through the water pipe (not shown) of the tank body 1 for dilution and regulation. The mixed and diluted wastewater enters the aerobic tank of the next process through the waste liquid outlet pipe 3 for activated sludge treatment to reduce the COD and sulfite concentrations in the wastewater. It should be noted that the ratio between clean water and wastewater is adjusted according to the removal rate of sulfite in the aerobic tank.

[0032] In order to realize the annular surge, the present embodiment adopts the method of biasing the offset pipe 6 to the bottom of the tank body 1, and at the same time, in order to realize the adjustable steering direction of aeration, a steerable aeration head 10 is provided.

[0033] Specifically, refer to Figure 1-Figure 4 , a plurality of offset tubes 6 are arranged at the bottom of the pool body 1, each of which extends along the length direction of the pool body 1, and all the offset tubes 6 are arranged side by side along the width direction of the pool body 1, the first offset tube 6 arranged is close to one long side wall of the pool body 1, and the last offset tube arranged is close to the center line of the pool body along the width direction. With such a structure, the offset tube 6 forms an offset setting at the bottom of the pool body 1, and is basically only set at half of the bottom of the pool body 1.

[0034] In order to form aeration and obtain aeration diversion, all bias tubes 6 are connected to a distribution tube 5 at one end on the same side, and the distribution tube 5 is connected to an external high-pressure gas source through a high-pressure gas pipe 4, and multiple outlet pipes 8 are evenly connected to each bias tube 6, and each outlet pipe 8 is screwed with an outlet plate 9, and the outlet plate 9 is connected to multiple divertable aeration heads 10. In this way, the gas entering the aeration head 10 has sufficient air pressure, so that after aeration, a strong micro-bubble flow can be formed.

[0035] Through the above arrangement, when adjusting and diluting, the external high-pressure gas source passes through the high-pressure gas pipe 4, the distribution pipe 5, the outlet pipe 8, the outlet plate 9 in sequence, and finally converges into the aeration head 10. After aeration by the aeration head 10, a strong and powerful upward microbubble flow is formed, and the microbubble flow forms a biased airflow. The biased microbubble flow carries the wastewater above to surge upward. At this time, the wastewater above the aeration head 10 tends to be vacant, and the wastewater on the side of the biased microbubble flow without the aeration head 10 will surge there to make up for it, and at the aeration head 10 When the wastewater above is compensated, the wastewater on the side will also cause a vacancy trend on the side due to the compensation, and the vacancy there will be compensated by the wastewater above this place. As the wastewater above is compensated, a vacancy trend will also appear on the top, and the vacancy trend there will be compensated by the wastewater above the aeration head 10. In this way, as the aeration continues, in the process of this vacancy trend and the microbubble flow continuing to surge upward, an overall annular surge is gradually formed in the pool body, and this annular overall surge forces the wastewater and clean water in the pool body 1 to be fully and evenly mixed.

[0036] Furthermore, in this embodiment, the waste liquid inlet pipe 2 and the waste liquid outlet pipe 3 are arranged on the other long side wall of the tank body 1, and the waste liquid inlet pipe 2 is arranged near the bottom of the tank body 1, and the waste liquid outlet pipe 3 is arranged near the middle and upper part of the tank body 1. At this time, the waste water flowing into the waste liquid inlet pipe 2 has the same flow direction as the mixed liquid surging in an annular manner at the bottom of the tank body, and the mixed liquid flowing out of the waste liquid outlet pipe 3 has the same flow direction as the mixed liquid surging in an annular manner at the middle and upper part of the tank body, and the flow direction trends are consistent as a whole, thereby not only not causing damage to the annular surging, but also promoting the continuation of the annular surging.

[0037] It should be noted that, in this embodiment, each offset pipe 6 is connected to a support column 7 below the first outlet pipe 8 and the last outlet pipe 8 to support the offset pipe 6 to be suspended at the bottom of the tank body 1. With such a structure, the offset pipe 6 can be suspended at the bottom of the tank body 1 to avoid direct contact with the siltation formed over the years at the bottom of the tank body 1, so that the aeration head 10 can be as far away from the siltation as possible, but not too far away from the bottom of the tank body 1.

[0038] There are many possible implementation structures for the structure of the gas outlet disc 9. In this embodiment, the following structures are mainly disclosed. Specifically, the gas outlet disc 9 is constructed as a disc-shaped shell, which encloses a closed air cavity 901. A downward connecting air pipe 902 with external threads is constructed at the bottom center of the disc-shaped shell to be screwed with the gas outlet pipe 8. The gas outlet disc 9 of this structure can realize a detachable connection with the connecting air pipe 902 on the one hand, and can construct an air cavity 901 with a large enough space on the other hand, so as to provide sufficient high-pressure gas for aeration and form a strong micro-bubble flow.

[0039] Similarly, there are multiple implementation structures for the aeration head 10. In this embodiment, specifically, it is implemented in the following structure: the aeration head 10 includes a base tube 101, a direction-adjusting ball tube 102, and a plate-type microporous rubber aerator 103. The base tube 101 is fixedly connected to the top of the disc-shaped shell and connected to the air cavity 901. The top of the base tube 101 is configured with a ball groove (not marked). The direction-adjusting ball tube 102 is configured with a spherical turning portion 1021 that is spherically connected to the ball groove. The direction-adjusting ball tube 102 is also configured with a columnar air outlet 1022. The plate-type microporous rubber aerator 103 is sealed and installed at the outlet end of the columnar air outlet 1022. The aeration head 10 can realize the micro-angle rotation adjustment of the direction-adjusting ball tube 102 relative to the base tube 101 through the coordinated arrangement of the ball groove and the spherical turning portion 1021, thereby adjusting the injection direction of the aeration airflow.

[0040] In this embodiment, the spray direction of the aerated airflow is adjusted as follows: the direction-adjusting ball tube 102 on the bias tube 6 disposed near the long side wall of the pool body 1 is disposed vertically, while the direction-adjusting ball tube 102 on the bias tube 6 disposed far from the long side wall of the pool body 1 is disposed at a slight angle in the direction of the long side wall away from the pool body 1. With such an arrangement, after aeration, an upward microbubble flow is formed at the long side wall near the pool body 1, and a microbubble flow slightly inclined toward the other long side wall is formed at the middle position of the pool body 1, so that under the joint action of most of the upward microbubble flow and a small part of the slightly inclined upward microbubble flow, a more annular overall surge is formed. It should be noted that after the slight steering angle is determined, the steering ball tube 102 can be positioned at the angle without being easily rotated. To achieve this positioning, the gap between the ball groove and the spherical steering portion 1021 can be used to achieve this. The gap is sufficient to allow the steering ball tube 102 to be rotated under the operator's pull without causing unnecessary steering under the jet of the aeration airflow.

[0041] In order to make the plate-type microporous rubber aerator 103 sealably fixedly installed at the outlet end of the columnar air outlet 1022, in the present embodiment, the plate-type microporous rubber aerator 103 includes a mounting base 1031, a rubber microporous aeration plate 1032 fixedly connected to the mounting base 1031, the connecting portion of the mounting base 1031 is provided with an external thread, and the inner wall of the columnar air outlet 1022 is provided with an internal thread matching the external thread. It can be seen that the plate-type microporous rubber aerator 103 can be fixed and sealed by means of internal and external threads and screw connection. It should be noted that the rubber microporous aeration plate 1032 has a skeleton and a diaphragm, the skeleton is used to support the diaphragm, and there are several micropores on the diaphragm. After the high-pressure gas passes through, a large number of tiny bubbles can be generated to form a microbubble flow. Since the plate-type microporous rubber aerator 103 can be customized and produced by the aerator manufacturer according to the structural requirements, it is a common aeration accessory, so the specific structure is not described in detail here.

[0042] The regulating pool of the utility model can form an overall annular surge in the pool body by arranging the offset pipe and the steerable aeration head, so that the waste water and the clean water can be uniformly mixed as a whole.

[0043] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A regulating pond based on aeration bias, characterized in that: The invention comprises a tank body (1), wherein a waste liquid inlet pipe (2) and a waste liquid outlet pipe (3) are arranged on the side wall of the tank body (1), and a plurality of offset pipes (6) are arranged at the bottom of the tank body (1), each of the offset pipes (6) extends along the length direction of the tank body (1), and all the offset pipes (6) are arranged side by side along the width direction of the tank body (1), the first offset pipe (6) arranged is close to one long side wall of the tank body (1), and the last offset pipe arranged is close to the center line of the tank body along the width direction; All the bias tubes (6) are connected to a distribution tube (5) at one end on the same side, and the distribution tube (5) is connected to an external high-pressure gas source through a high-pressure gas pipe (4); A plurality of air outlet pipes (8) are evenly connected to each offset pipe (6), and an air outlet disk (9) is screwed onto each air outlet pipe (8), and a plurality of steerable aeration heads (10) are connected to the air outlet disk (9).

2. A regulating pond based on aeration bias as claimed in claim 1, characterized in that: The waste liquid inlet pipe (2) and the waste liquid outlet pipe (3) are arranged on the other long side wall of the tank body (1), and the waste liquid inlet pipe (2) is arranged close to the bottom of the tank body (1), while the waste liquid outlet pipe (3) is arranged close to the middle and upper part of the tank body (1).

3. A regulating pond based on aeration bias as claimed in claim 1, characterized in that: Each bias pipe (6) is connected to a support column (7) below the first air outlet pipe (8) and the last air outlet pipe (8) to support the bias pipe (6) so that it can be suspended at the bottom of the pool body (1).

4. A regulating pond based on aeration bias as claimed in claim 1, characterized in that: The air outlet disc (9) is constructed as a disc-shaped shell, which encloses a closed air cavity (901). A downward connecting air pipe (902) with external threads is constructed at the bottom center of the disc-shaped shell to be threadedly connected to the air outlet pipe (8).

5. A regulating pond based on aeration bias as claimed in claim 4, characterized in that: The aeration head (10) comprises a base tube (101), a direction-adjusting ball tube (102) and a plate-type microporous rubber aerator (103); the base tube (101) is fixedly connected to the top of the disc-shaped shell and is connected to the air cavity (901); a ball groove is formed at the top of the base tube (101); the direction-adjusting ball tube (102) is formed with a ball-shaped turning portion (1021) spherically connected to the ball groove; the direction-adjusting ball tube (102) is also formed with a columnar air outlet portion (1022); and the plate-type microporous rubber aerator (103) is sealed and installed at the outlet end of the columnar air outlet portion (1022).

6. A regulating pond based on aeration bias as claimed in claim 5, characterized in that: The plate-type microporous rubber aerator (103) comprises a mounting base (1031) and a rubber microporous aeration plate (1032) fixedly connected to the mounting base (1031); an external thread is provided at the connecting end of the mounting base (1031); and an internal thread matching the external thread is provided on the inner wall of the columnar air outlet portion (1022).

7. A regulating pond based on aeration bias as claimed in claim 5, characterized in that: The direction-adjusting ball tube (102) on the bias tube (6) disposed close to the long side wall of the pool body (1) is disposed vertically, while the direction-adjusting ball tube (102) on the bias tube (6) disposed away from the long side wall of the pool body (1) is disposed at a slight angle in a direction away from the long side wall of the pool body (1).

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