Aeration and precipitation integrated treatment device for sewage treatment

Abstract

The invention belongs to the technical field of sewage treatment, and discloses an aeration and precipitation integrated treatment device for sewage treatment, which comprises a treatment box, two side pipe bodies, a feeding pipe, a pump body and an air pump are fixedly arranged on the treatment box, a partition plate is fixedly arranged in the treatment box, and through holes are uniformly formed in the partition plate. A plurality of aeration mechanisms are further fixedly arranged on the partition plate and are jointly communicated with an air inlet pipe group, and the air inlet pipe group is communicated with an air pump; the aeration mechanism comprises an upper shell, a lower barrel, a rotating shaft, an impeller, a plurality of connecting frames, an annular frame and a plurality of air outlet pipes, the upper shell is communicated with the air inlet pipe group after being fixed through the lower barrel, the lower barrel is fixedly arranged on the partition plate, the rotating shaft is rotationally arranged in the upper shell, and the impeller is fixedly arranged on the rotating shaft; according to the invention, the effective air injection range of the air outlet pipe is changed through the plurality of through holes in the annular frame, so that a multi-section aeration range is formed, and the aeration effect is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of sewage treatment, and in particular relates to an aeration and sedimentation integrated treatment device for sewage treatment. Background Art

[0002] In the process of sewage treatment, it is necessary to transport the sewage to the inside of a tank or a box, and then add a flocculant into the sewage to cause the substances in the sewage to flocculate and produce precipitation. In order to further accelerate the flocculation process, the trough uses an aeration device to transport external air into the sewage. On the one hand, it can accelerate the mixing of the flocculant and the sewage, and on the other hand, it can provide the sewage with the oxygen needed in the treatment process. However, conventional aeration devices all use an air pump to directly draw external air into the sewage. For example, according to a patent document with authorization announcement number "CN115583734B", a sewage treatment rotary aeration equipment and an aeration method are disclosed, including a shell, a rotating rod rotatably connected to the top surface of the shell near the middle position, and two inlet ports symmetrically penetrating and connected to the inner bottom surface of the shell. Air connecting pipe. During the use of the invention, gas is introduced into the interior of the shell through the air inlet connecting pipe, and the gas is discharged through the aeration holes to generate bubbles. The bubbles are dissolved in the sewage, so that the microorganisms in the sewage obtain dissolved oxygen. The diameter of the aeration holes is changed by the adjustment part, so that bubbles of different diameters are generated in the sewage, so that the sewage at different positions in the sewage can quickly obtain dissolved oxygen. At the same time, when the rotating rod rotates, the bubbles in the sewage are broken by the auxiliary part, so that the gas can be quickly mixed with the sewage. Through the aerating part, gas is added to the inside of the sewage during the operation of the auxiliary part, so as to further improve the mixing effect of the sewage and the gas. However, since the position of the aeration holes is fixed, the aeration range is relatively limited, which is not conducive to the sewage treatment. Therefore, it is necessary to solve this technical problem. Summary of the invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an integrated aeration and sedimentation treatment device for sewage treatment, which effectively solves the problem that conventional aeration devices directly pump external air into the interior of the sewage through an air pump, thus resulting in a relatively limited aeration range.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solutions: an aeration and sedimentation integrated treatment device for sewage treatment, comprising a treatment box, on which two side pipe bodies, a feeding pipe, a pump body and an air pump are fixedly arranged, respectively; a partition is fixedly arranged inside the treatment box, and circular holes are evenly opened on the partition, and a plurality of aeration mechanisms are also fixedly arranged on the partition, and the plurality of aeration mechanisms are connected to an air intake pipe group, and the air intake pipe group is connected to the air pump;

[0005] The aeration mechanism includes an upper shell, a lower cylinder, a rotating shaft, an impeller, a plurality of connecting frames, an annular frame and a plurality of air outlet pipes, wherein the upper shell is connected to the air inlet pipe group after being fixed through the lower cylinder, and the lower cylinder is fixed on the partition, the rotating shaft is rotatably arranged in the upper shell, the impeller is fixed on the rotating shaft, and the impeller is fixed to the annular frame through a plurality of connecting frames, the annular frame is rotatably matched with the upper shell, and the plurality of air outlet pipes are fixed on the outer side of the upper shell; wherein the annular frame is sequentially provided with a plurality of through holes, and the areas of the plurality of through holes change linearly along the circumference of the annular frame; a pressure relief valve and a one-way valve are also fixedly arranged inside the air outlet pipe, and the pressure relief valve is located between the one-way valve and the upper shell.

[0006] Preferably, the overall shape of the circular hole is conical, and the tip of the conical circular hole faces the bottom of the processing box.

[0007] Preferably, the radius dimension of the end of the lower cylinder close to the upper shell is smaller than the radius dimension of the end of the lower cylinder far from the upper shell.

[0008] Preferably, the areas of the plurality of through holes are sequentially increased in a counterclockwise direction on the annular frame, with the through hole with the smallest area being the starting point.

[0009] Preferably, two outer plates and two inner plates are fixedly arranged inside the air outlet pipe, and the two inner plates are located between the two outer plates, wherein an outer cavity is formed between the two outer plates and the air outlet pipe, a middle cavity is formed between the two outer plates, the two inner plates and the air outlet pipe, and an inner cavity is formed between the two inner plates and the air outlet pipe.

[0010] Preferably, there are three through holes, the longitudinal dimension of the through hole with the largest area is greater than or equal to the diameter of the air outlet pipe, the longitudinal dimension of the through hole with the middle area is equal to the longitudinal dimension between the two outer plates, and the longitudinal dimension of the through hole with the smallest area is equal to the longitudinal dimension between the two inner plates.

[0011] Preferably, an auxiliary mechanism is also provided in the upper shell body, and the auxiliary mechanism includes a driving gear, a plurality of driven gears, a plurality of driven shafts and a plurality of stirring rods, wherein the driving gear is fixedly provided on the rotating shaft, the driving gear is meshed with the plurality of driven gears, the plurality of driven gears are respectively fixedly provided on the plurality of driven shafts, the plurality of driven shafts are rotatably provided on the upper shell body, and the plurality of stirring rods are respectively fixedly provided on the plurality of driven shafts.

[0012] Preferably, the radius of the driving gear is greater than the radius of the driven gear.

[0013] Preferably, two installation chambers are formed inside the upper shell, wherein the driving gear and multiple driven gears in the auxiliary mechanism are all located in the upper installation chamber, the rotating shaft, impeller, multiple connecting frames and annular frame in the aeration mechanism are all located in the lower installation chamber, and the air outlet pipe is connected to the installation chamber located in the lower chamber.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. During operation, through the coordination of the air pump, lower cylinder, upper shell, impeller and outlet pipe, the air flow can drive the impeller to rotate during aeration to drive the annular frame to move, and the effective jet range of the outlet pipe can be changed through the multiple through holes on the annular frame, thereby forming a multi-stage aeration range and improving the aeration effect;

[0016] 2. During operation, the annular frame, the outer plate and the inner plate can be matched with different through holes and the outlet pipe to match the effective outlet area in the vent pipe, thereby further expanding the aeration range and enhancing the aeration effect;

[0017] 3. During operation, the auxiliary mechanism can be driven to move through the impeller and the rotating shaft, so that the stirring rod on the driven shaft stirs the sewage, thereby further enhancing the mixing rate of the flocculant and the sewage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0019] In the attached picture:

[0020] Figure 1 This is a schematic structural diagram of an aeration and sedimentation integrated treatment device for sewage treatment according to the present invention;

[0021] Figure 2 This is one of the schematic diagrams of the partition structure of the present invention;

[0022] Figure 3 This is the second schematic diagram of the partition structure of the present invention;

[0023] Figure 4 It is a schematic diagram of the structure of the aeration mechanism of the present invention;

[0024] Figure 5 It is a schematic cross-sectional structural diagram of the aeration mechanism of the present invention;

[0025] Figure 6 It is a schematic diagram of the auxiliary mechanism structure of the present invention;

[0026] Figure 7It is a schematic diagram of the annular frame and the impeller installation structure of the present invention;

[0027] Figure 8 It is a schematic diagram of the internal structure of the air outlet pipe of the present invention.

[0028] In the figure: 1. treatment box; 2. side pipe body; 3. feeding pipe; 4. pump body; 5. air pump; 6. partition; 7. round hole; 8. air inlet pipe group; 9. installation room; 10. upper shell; 11. lower cylinder; 12. rotating shaft; 13. impeller; 14. connecting frame; 15. annular frame; 16. air outlet pipe; 17. through hole; 18. pressure relief valve; 19. one-way valve; 20. outer plate body; 21. inner plate body; 22. outer cavity body; 23. middle cavity body; 24. inner cavity body; 25. driving gear; 26. driven gear; 27. driven shaft; 28. stirring rod. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0030] Depend on Figure 1-Figure 8 The present invention relates to an aeration and sedimentation integrated treatment device for sewage treatment, comprising a treatment box 1, on which two side pipe bodies 2, a feeding pipe 3, a pump body 4 and an air pump 5 are fixedly arranged, respectively; a partition 6 is fixedly arranged inside the treatment box 1, and circular holes 7 are evenly opened on the partition 6; a plurality of aeration mechanisms are also fixedly arranged on the partition 6, and the plurality of aeration mechanisms are connected to an air intake pipe group 8, and the air intake pipe group 8 is connected to the air pump 5;

[0031] With such a design, when in use, the sewage is transported to the interior of the treatment box 1 through one of the side pipe bodies 2 by an external power device, and a flocculant is added to the interior of the treatment box 1 through the feeding pipe 3. The flocculant causes the substances in the sewage to flocculate and precipitate quickly, and the precipitate subsequently passes through the circular hole 7 on the partition 6 and falls to the bottom of the treatment box 1 for storage. When there is too much flocculation and precipitation, the flocculation and precipitation can be pumped out by the pump body 4 and enter the subsequent process for treatment, and the treated sewage can be pumped out by the external power device in conjunction with the other side pipe body 2 to enter the next process; in the process of sewage flocculation, the outside air is pumped into the interior of the air inlet pipe group 8 by the air pump 5, and then discharged through a plurality of aeration mechanisms, thereby accelerating the flocculation process of the sewage by aeration and providing oxygen for the sewage treatment process.

[0032] However, if the outside air is simply pumped into the treatment box 1 in a conventional manner, the air distribution will be relatively concentrated, and the air bubbles generated will be too large, which will easily reduce the aeration effect of the sewage. Therefore, the following technical solutions are provided:

[0033] The aeration mechanism includes an upper shell 10, a lower cylinder 11, a rotating shaft 12, an impeller 13, a plurality of connecting frames 14, an annular frame 15 and a plurality of air outlet pipes 16, wherein the upper shell 10 is connected to the air inlet pipe group 8 after being fixed through the lower cylinder 11, and the lower cylinder 11 is fixedly arranged on the partition 6, the rotating shaft 12 is rotatably arranged in the upper shell 10, the impeller 13 is fixedly arranged on the rotating shaft 12, and the impeller 13 is fixedly arranged with the annular frame 15 through a plurality of connecting frames 14, the annular frame 15 is rotatably matched with the upper shell 10, and the plurality of air outlet pipes 16 are all fixedly arranged on the outer side of the upper shell 10; wherein the annular frame 15 is sequentially provided with a plurality of through holes 17, and the areas of the plurality of through holes 17 change linearly along the circumference of the annular frame 15; the interior of the air outlet pipe 16 is also fixedly provided with a pressure relief valve 18 and a one-way valve 19, and the pressure relief valve 18 is located between the one-way valve 19 and the upper shell 10;

[0034] With such a design, when air enters the interior of the upper shell 10 through the air inlet pipe group 8 and the lower cylinder 11, the air flow discharged from the lower cylinder 11 will impact the impeller 13 on the rotating shaft 12, thereby causing the impeller 13 to rotate. The impeller 13 drives the annular frame 15 to move through the connecting frame 14. As air continues to enter, it eventually reaches the threshold of the pressure relief valve 18, causing the air in the upper shell 10 to be discharged through the outlet pipe 16. During the rotation of the annular frame 15, the multiple through holes 17 on the annular frame 15 are sequentially fitted with the outlet pipe 16, thereby changing the effective communication area between the outlet pipe 16 and the upper shell 10, thereby changing the flow rate of the air flow entering the outlet pipe 16, so that the effective distance of the air flow after being discharged through the outlet pipe 16 is different, thereby expanding the effective aeration range of the outlet pipe 16.

[0035] Specifically, the overall shape of the circular hole 7 is conical, and the tip of the conical circular hole 7 faces the bottom of the treatment box 1; this design makes it difficult for the precipitate produced by flocculation to move back through the circular hole 7 to the top of the circular hole 7 after passing through the circular hole 7, so that the precipitate is concentrated at the bottom of the treatment box 1.

[0036] Specifically, the radius dimension of the end of the lower cylinder 11 close to the upper shell 10 is smaller than the radius dimension of the end of the lower cylinder 11 away from the upper shell 10; such a design can increase the flow rate of the air flow discharged from the lower cylinder 11 by reducing the effective ventilation cross-sectional area to ensure the impact force on the impeller 13 to cause it to move.

[0037] Specifically, the areas of the plurality of through holes 17 are increased in a counterclockwise direction on the annular frame 15, starting from the through hole 17 with the smallest area. Such a design enables the airflow discharged from the air outlet pipe 16 to form multiple jet distances of different distances.

[0038] Furthermore, two outer plates 20 and two inner plates 21 are fixedly disposed inside the air outlet pipe 16, and the two inner plates 21 are located between the two outer plates 20, wherein an outer cavity 22 is formed between the two outer plates 20 and the air outlet pipe 16, a middle cavity 23 is formed between the two outer plates 20, the two inner plates 21 and the air outlet pipe 16, and an inner cavity 24 is formed between the two inner plates 21 and the air outlet pipe 16;

[0039] There are three through holes 17, the longitudinal dimension of the through hole 17 with the largest area is greater than or equal to the diameter of the air outlet pipe 16, the longitudinal dimension of the through hole 17 with the middle area is equal to the longitudinal dimension between the two outer plates 20, and the longitudinal dimension of the through hole 17 with the smallest area is equal to the longitudinal dimension between the two inner plates 21;

[0040] With such a design, when in use, when the through hole 17 with the largest area is in contact with the air outlet pipe 16, the interior of the air outlet pipe 16 is completely connected, and the outer cavity 22, the middle cavity 23 and the inner cavity 24 are all connected. Since the effective ventilation area of ​​the air outlet pipe 16 is the largest, under a constant pressure, its effective jet distance is the smallest; when the through hole 17 with a middle area is in contact with the air outlet pipe 16, it will block the corresponding outer cavity 22, and only the middle cavity 23 and the inner cavity 24 are connected, and under a constant pressure, its effective jet distance will be expanded; when the through hole 17 with the smallest area is in contact with the air outlet pipe 16, it will block the corresponding outer cavity 22 and the middle cavity 23, and only the inner cavity 24 is connected, and its effective ventilation area is the smallest. Therefore, under a constant pressure, its effective jet distance is the largest; thereby forming a three-stage jet range and improving the effective aeration range.

[0041] An auxiliary mechanism is also provided in the upper housing 10, and the auxiliary mechanism includes a driving gear 25, a plurality of driven gears 26, a plurality of driven shafts 27, and a plurality of stirring rods 28, wherein the driving gear 25 is fixedly provided on the rotating shaft 12, the driving gear 25 and the plurality of driven gears 26 are all meshed and matched, the plurality of driven gears 26 are respectively fixedly provided on the plurality of driven shafts 27, the plurality of driven shafts 27 are all rotatably provided on the upper housing 10, and the plurality of stirring rods 28 are respectively fixedly provided on the plurality of driven shafts 27;

[0042] With such a design, when the impeller 13 drives the rotating shaft 12 to rotate, the rotating shaft 12 also drives the driving gear 25 to rotate. The driving gear 25 drives multiple driven gears 26 to rotate through meshing. The driven gear 26 drives the stirring rod 28 to rotate through the corresponding driven shaft 27, so that the sewage is stirred by the stirring rod 28, thereby accelerating the mixing process of the flocculant and the sewage.

[0043] Specifically, the radius of the driving gear 25 is greater than the radius of the driven gear 26 ; such a design enables the driven shaft 27 to rotate at a higher speed when the driving gear 25 rotates at a low speed, thereby ensuring the use effect of the stirring rod 28 .

[0044] Specifically, two installation chambers 9 are formed inside the upper shell 10, wherein the driving gear 25 and multiple driven gears 26 in the auxiliary mechanism are all located in the upper installation chamber 9, and the rotating shaft 12, impeller 13, multiple connecting frames 14 and annular frame 15 in the aeration mechanism are all located in the lower installation chamber 9, and the air outlet pipe 16 is connected to the installation chamber 9 located below; such a design facilitates separation of the parts related to the transmission part from the conversion space of the air flow.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An aeration sedimentation integrated treatment device for sewage treatment, comprising a treatment box (1), on which two side pipe bodies (2), a feeding pipe (3), a pump body (4) and an air pump (5) are fixedly arranged respectively, a partition (6) is fixedly arranged inside the treatment box (1), circular holes (7) are evenly opened on the partition (6), and a plurality of aeration mechanisms are also fixedly arranged on the partition (6), the plurality of aeration mechanisms are connected to an air intake pipe group (8), and the air intake pipe group (8) is connected to the air pump (5); It is characterized in that The aeration mechanism comprises an upper shell (10), a lower cylinder (11), a rotating shaft (12), an impeller (13), a plurality of connecting frames (14), an annular frame (15) and a plurality of air outlet pipes (16), wherein the upper shell (10) is connected to the air inlet pipe group (8) after being fixed through the lower cylinder (11), and the lower cylinder (11) is fixedly arranged on the partition (6), the rotating shaft (12) is rotatably arranged in the upper shell (10), the impeller (13) is fixedly arranged on the rotating shaft (12), and the impeller (13) is connected to the air inlet pipe group (8) through the plurality of connecting frames. (14) is fixedly arranged with the annular frame (15), the annular frame (15) is rotatably matched with the upper shell (10), and a plurality of air outlet pipes (16) are fixedly arranged on the outer side of the upper shell (10); wherein a plurality of through holes (17) are sequentially opened on the annular frame (15), and the areas of the plurality of through holes (17) change linearly along the circumference of the annular frame (15); a pressure relief valve (18) and a one-way valve (19) are also fixedly arranged inside the air outlet pipe (16), and the pressure relief valve (18) is located between the one-way valve (19) and the upper shell (10).

2. The aeration and sedimentation integrated treatment device for sewage treatment according to claim 1, characterized in that: The overall shape of the circular hole (7) is conical, and the tip of the conical circular hole (7) faces the bottom of the processing box (1).

3. The aeration and sedimentation integrated treatment device for sewage treatment according to claim 1, characterized in that: The radius dimension of the end of the lower cylinder (11) close to the upper shell (10) is smaller than the radius dimension of the end of the lower cylinder (11) far from the upper shell (10).

4. The aeration and sedimentation integrated treatment device for sewage treatment according to claim 1, characterized in that: The through hole (17) with the smallest area among the plurality of through holes (17) is used as a starting point, and the areas of the plurality of through holes (17) increase in sequence in a counterclockwise direction on the annular frame (15).

5. The aeration and sedimentation integrated treatment device for sewage treatment according to claim 4, characterized in that: Two outer plates (20) and two inner plates (21) are fixedly arranged inside the air outlet pipe (16), and the two inner plates (21) are located between the two outer plates (20), wherein an outer cavity (22) is formed between the two outer plates (20) and the air outlet pipe (16), a middle cavity (23) is formed between the two outer plates (20), the two inner plates (21) and the air outlet pipe (16), and an inner cavity (24) is formed between the two inner plates (21) and the air outlet pipe (16).

6. The aeration and sedimentation integrated treatment device for sewage treatment according to claim 5, characterized in that: The through holes (17) are provided with three holes, the longitudinal dimension of the through hole (17) with the largest area is greater than or equal to the diameter of the air outlet pipe (16), the longitudinal dimension of the through hole (17) with the middle area is equal to the longitudinal dimension between the two outer plates (20), and the longitudinal dimension of the through hole (17) with the smallest area is equal to the longitudinal dimension between the two inner plates (21).

7. The aeration and sedimentation integrated treatment device for sewage treatment according to claim 1, characterized in that: An auxiliary mechanism is also arranged in the upper shell (10), and the auxiliary mechanism comprises a driving gear (25), a plurality of driven gears (26), a plurality of driven shafts (27) and a plurality of stirring rods (28), wherein the driving gear (25) is fixedly arranged on the rotating shaft (12), the driving gear (25) and the plurality of driven gears (26) are meshed and matched, the plurality of driven gears (26) are respectively fixedly arranged on the plurality of driven shafts (27), the plurality of driven shafts (27) are all rotatably arranged on the upper shell (10), and the plurality of stirring rods (28) are respectively fixedly arranged on the plurality of driven shafts (27).

8. The aeration and sedimentation integrated treatment device for sewage treatment according to claim 7, characterized in that: The radius size of the driving gear (25) is greater than the radius size of the driven gear (26).

9. The aeration and sedimentation integrated treatment device for sewage treatment according to claim 8, characterized in that: Two installation chambers (9) are formed inside the upper shell (10), wherein a driving gear (25) and a plurality of driven gears (26) in the auxiliary mechanism are all located in the upper installation chamber (9), and a rotating shaft (12), an impeller (13), a plurality of connecting frames (14) and an annular frame (15) in the aeration mechanism are all located in the lower installation chamber (9), and an air outlet pipe (16) is communicated with the lower installation chamber (9).

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