Circulating water distribution device in hydrolysis acidification pool

Abstract

The utility model provides a circulation water distribution device in a hydrolysis acidification pool, which comprises a hydrolysis acidification sedimentation pool and a hydrolysis acidification pool group, the hydrolysis acidification pool group comprises two hydrolysis acidification pools, a water distribution assembly is arranged between the hydrolysis acidification sedimentation pool and the hydrolysis acidification pools, and the hydrolysis acidification pool group comprises a water inlet and a water outlet. A first water distribution pipeline and a second water distribution pipeline are arranged in the hydrolysis acidification pool, the water distribution assembly is communicated with the first water distribution pipeline and the second water distribution pipeline, the second water distribution pipeline is arranged above the first water distribution pipeline, and the second water distribution pipeline can rotate. Through the arrangement of the double-layer water distribution pipeline, water flow can be more uniform, sewage can be more uniformly distributed in the treatment process, the treatment efficiency is improved, and the situation that the concentration of a local area is too high or too low is avoided. According to the utility model, the fourth conveying pipe stirs sewage in the hydrolysis acidification pool through the stirring blades while rotating to distribute water, so that the treatment efficiency is improved.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of sewage treatment, and in particular to a circulating water distribution device in a hydrolysis acidification tank. Background Art

[0002] Hydrolysis and acidification are the early stages of anaerobic treatment in sewage treatment. Mechanistically, hydrolysis and acidification are the first two stages of the anaerobic digestion process. The purpose is to convert the insoluble organic matter in the original wastewater into soluble organic matter, and convert the difficult-to-biodegrade organic matter into easily biodegradable organic matter, so as to improve the biodegradability of the wastewater and facilitate subsequent aerobic treatment. The hydrolysis and acidification tank is divided into a sludge bed area and a clear water area. Through the sludge bed, the particulate matter and colloidal matter in the influent are quickly intercepted and adsorbed. Under the action of a large number of hydrolytic acid-producing bacteria, the intercepted substances hydrolyze the insoluble organic matter into soluble substances, and convert the large molecular and difficult-to-biodegrade substances into small molecular organic substances (such as organic acids) that are easily biodegradable.

[0003] For example, Chinese patent publication number CN213141545U discloses a circulating water distribution device in a hydrolysis acidification tank, including a hydrolysis acidification tank group, wherein the hydrolysis acidification tank group includes at least one hydrolysis acidification tank, and the hydrolysis acidification tank group is connected to a hydrolysis acidification sedimentation tank, and muddy water slowly flows from the hydrolysis acidification tank into the hydrolysis acidification sedimentation tank by gravity, and the hydrolysis acidification tank group is also connected to the hydrolysis acidification sedimentation tank through a reflux water distribution system.

[0004] The above application solves the problem of excessive stirring force and sludge deposition at the bottom of the pool, allowing the sludge at the bottom of the pool to rise evenly and fully mix with the sewage, adsorbing and degrading macromolecular substances, thereby making the effluent effect more ideal. However, in the prior art, single-layer pipe water distribution is used, which may cause uneven distribution of sewage in the hydrolysis and acidification tank. If the water cannot be evenly distributed in the hydrolysis and acidification tank, it may cause inconsistent reaction rates in different areas, affecting the effects of hydrolysis and acidification, and reducing the efficiency and quality of sewage treatment. Utility Model Content

[0005] 1. Technical problems to be solved by the utility model:

[0006] The utility model provides a circulating water distribution device in a hydrolysis acidification tank, which is used to solve the technical problems existing in the above-mentioned background technology.

[0007] 2. Technical solution:

[0008] To achieve the above-mentioned purpose, the technical solution provided by the utility model is: a circulating water distribution device in a hydrolysis acidification tank, comprising a hydrolysis acidification sedimentation tank and a hydrolysis acidification tank group, the hydrolysis acidification tank group comprising two hydrolysis acidification tanks, a water distribution assembly is arranged between the hydrolysis acidification sedimentation tank and the hydrolysis acidification tank, a first water distribution pipeline and a second water distribution pipeline are arranged in the hydrolysis acidification tank, the water distribution assembly is connected with the first water distribution pipeline and the second water distribution pipeline, the second water distribution pipeline is arranged above the first water distribution pipeline, and the second water distribution pipeline is rotatable.

[0009] Preferably, a connecting pipe is provided between the two hydrolysis acidification tanks, a connecting pipe is provided between the hydrolysis acidification sedimentation tank and one hydrolysis acidification tank, a drain pipe is provided on the hydrolysis acidification sedimentation tank, and a water inlet pipe is provided on the hydrolysis acidification tank away from the hydrolysis acidification sedimentation tank.

[0010] Preferably, the water distribution assembly includes a delivery pump, an input end of the delivery pump is connected to the hydrolysis acidification sedimentation tank, and an output end thereof is connected to a first delivery pipe, the first delivery pipe is connected to an adapter, the adapter is installed on the hydrolysis acidification tank, the adapter is connected to a second water distribution pipeline, and the adapter is connected to the first water distribution pipeline through the second delivery pipe.

[0011] Preferably, the first water distribution pipeline includes a third delivery pipe, the third delivery pipe is connected to the second delivery pipe, a plurality of water distribution pipes are equidistantly arranged on both sides of the third delivery pipe, and a plurality of first through holes are equidistantly opened on the water distribution pipes.

[0012] Preferably, the second water distribution pipeline includes a fourth delivery pipe, a plurality of second through holes are provided on the fourth delivery pipe at equal distances, and both ends of the fourth delivery pipe are rotatably installed in the hydrolysis acidification tank via a rotating joint.

[0013] Preferably, a plurality of stirring blades are arranged at equal distances on the fourth conveying pipe, and the fourth conveying pipe is connected to the motor shaft of the motor.

[0014] 3. Beneficial effects:

[0015] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0016] The utility model provides a first water distribution pipeline and a second water distribution pipeline in a hydrolysis acidification tank. The hydrolysis acidification sedimentation tank is connected with the first water distribution pipeline and the second water distribution pipeline through a water distribution component. The double-layer water distribution pipeline can make the water flow more uniform, ensure that the sewage is more evenly distributed during the treatment process, improve the treatment efficiency, and avoid excessively high or low concentrations in local areas.

[0017] The two ends of the fourth delivery pipe of the utility model are rotatably installed in the hydrolysis acidification tank through a rotating joint, and the fourth delivery pipe is driven to rotate by a motor. Water can be rotated and distributed through the fourth delivery pipe and the second through hole, which can ensure that the sewage is fully mixed in the hydrolysis acidification tank, and the macromolecular substances are adsorbed and degraded, so that the water output effect is more ideal.

[0018] The fourth conveying pipe of the utility model stirs the sewage in the hydrolysis acidification tank through the stirring blades while rotating, which can increase the solubility of oxygen, promote the growth and metabolism of bacteria, accelerate the degradation rate of organic matter, and improve the treatment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the overall structure of the utility model from another angle;

[0021] Figure 3 It is an enlarged schematic diagram of area A of the utility model;

[0022] Figure 4 This is a schematic diagram of the first water distribution pipeline structure of the utility model.

[0023] Reference numerals:

[0024] 1. Hydrolysis acidification sedimentation tank; 2. Hydrolysis acidification tank; 3. Water distribution assembly; 31. Delivery pump; 32. First delivery pipe; 33. Adapter; 34. Second delivery pipe; 4. First water distribution pipeline; 41. Third delivery pipe; 42. Water distribution pipe; 43. First through hole; 5. Second water distribution pipeline; 51. Fourth delivery pipe; 52. Second through hole; 53. Rotary joint; 54. Stirring blade; 6. Motor; 7. Connecting pipe; 8. Connecting pipe; 9. Drain pipe; 10. Water inlet pipe. DETAILED DESCRIPTION

[0025] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "provided with", etc. should be understood in a broad sense, for example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] It should be noted that the structures not introduced in the present invention are not related to the design points and improvement directions of the present invention, and are the same as the prior art or can be implemented by using the prior art, and will not be described in detail here. Example

[0030] Refer to the attached Figures 1 to 4 A circulating water distribution device in a hydrolysis acidification tank comprises a hydrolysis acidification sedimentation tank 1 and a hydrolysis acidification tank group, wherein the hydrolysis acidification tank group comprises two hydrolysis acidification tanks 2, a water distribution component 3 is arranged between the hydrolysis acidification sedimentation tank 1 and the hydrolysis acidification tank 2, a first water distribution pipeline 4 and a second water distribution pipeline 5 are arranged in the hydrolysis acidification tank 2, the water distribution component 3 is connected with the first water distribution pipeline 4 and the second water distribution pipeline 5, the second water distribution pipeline 5 is arranged above the first water distribution pipeline 4, and the second water distribution pipeline 5 is rotatable.

[0031] A connecting pipe 7 is provided between the two hydrolysis acidification tanks 2, a connecting pipe 8 is provided between the hydrolysis acidification sedimentation tank 1 and one hydrolysis acidification tank 2, a drain pipe 9 is provided on the hydrolysis acidification sedimentation tank 1, and a water inlet pipe 10 is provided on the hydrolysis acidification tank 2 away from the hydrolysis acidification sedimentation tank 1.

[0032] The water distribution assembly 3 includes a delivery pump 31, the input end of the delivery pump 31 is connected to the hydrolysis acidification sedimentation tank 1, and the output end is connected to the first delivery pipe 32, the first delivery pipe 32 is connected to the adapter 33, the adapter 33 is installed on the hydrolysis acidification tank 2, the adapter 33 is connected to the second water distribution pipeline 5, and the adapter 33 is connected to the first water distribution pipeline 4 through the second delivery pipe 34.

[0033] The first water distribution pipeline 4 includes a third delivery pipe 41, which is connected to the second delivery pipe 34. A plurality of water distribution pipes 42 are equidistantly arranged on both sides of the third delivery pipe 41, and a plurality of first through holes 43 are equidistantly opened on the water distribution pipes 42.

[0034] The second water distribution pipeline 5 includes a fourth delivery pipe 51, and a plurality of second through holes 52 are provided at equal intervals on the fourth delivery pipe 51. Both ends of the fourth delivery pipe 51 are rotatably installed in the hydrolysis acidification tank 2 through a rotary joint 53, and the rotary joint 53 is connected to the adapter 33. A plurality of stirring blades 54 are provided at equal intervals on the fourth delivery pipe 51, and the fourth delivery pipe 51 is connected to the motor shaft of the motor 6.

[0035] Working principle:

[0036] When in use, sewage enters the hydrolysis acidification tank 2 through the water inlet pipe 10, and the delivery pump 31 and the motor 6 are controlled to operate. The operation of the delivery pump 31 allows the muddy water at the bottom of the hydrolysis acidification sedimentation tank 1 to enter the first water distribution pipeline 4 or the second water distribution pipeline 5 through the first delivery pipe 32, the second delivery pipe 34 and the adapter 33 respectively, and then be discharged. A part of the sewage passes through the third delivery pipe 41 and the water distribution pipe 42 of the first water distribution pipeline 4 in sequence and is discharged from the first through hole 43, and another part of the sewage passes through the fourth delivery pipe 51 and is discharged from the second through hole 52. The multi-layer water distribution makes the sludge at the bottom of the hydrolysis acidification tank 2 rise and mix with the sewage. At the same time, the motor 33 drives the fourth delivery pipe 51 to rotate, which not only rotates and sprays water, but also rotates the stirring blade 54 to mix the sludge with the sewage. The sewage after the muddy water is mixed slowly flows into the hydrolysis acidification sedimentation tank 1 through the connecting pipe 8, and the sludge settles to the bottom thereof under the action of gravity. The upper effluent of the hydrolysis acidification sedimentation tank 1 flows out through the drain pipe 9.

[0037] The above-described embodiments only express a certain implementation method of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the patent of the utility model shall be based on the attached claims.

Claims

1. A circulating water distribution device in a hydrolysis acidification tank, comprising a hydrolysis acidification sedimentation tank (1) and a hydrolysis acidification tank group, characterized in that: The hydrolysis acidification tank group comprises two hydrolysis acidification tanks (2); a water distribution assembly (3) is arranged between the hydrolysis acidification sedimentation tank (1) and the hydrolysis acidification tank (2); a first water distribution pipeline (4) and a second water distribution pipeline (5) are arranged in the hydrolysis acidification tank (2); the water distribution assembly (3) is connected to the first water distribution pipeline (4) and the second water distribution pipeline (5); the second water distribution pipeline (5) is arranged above the first water distribution pipeline (4); and the second water distribution pipeline (5) is rotatable.

2. The water circulation device in the hydrolysis acidification tank according to claim 1, characterized in that: A connecting pipe (7) is provided between the two hydrolysis acidification tanks (2), a connecting pipe (8) is provided between the hydrolysis acidification sedimentation tank (1) and one of the hydrolysis acidification tanks (2), a drainage pipe (9) is provided on the hydrolysis acidification sedimentation tank (1), and a water inlet pipe (10) is provided on the hydrolysis acidification tank (2) away from the hydrolysis acidification sedimentation tank (1).

3. The water circulation device in the hydrolysis acidification tank according to claim 2, characterized in that: The water distribution assembly (3) comprises a delivery pump (31), the input end of the delivery pump (31) being connected to the hydrolysis acidification sedimentation tank (1), and the output end of the delivery pump (31) being connected to a first delivery pipe (32), the first delivery pipe (32) being connected to an adapter (33), the adapter (33) being installed on the hydrolysis acidification tank (2), the adapter (33) being connected to a second water distribution pipeline (5), and the adapter (33) being connected to the first water distribution pipeline (4) via a second delivery pipe (34).

4. The water circulation device in the hydrolysis acidification tank according to claim 3, characterized in that: The first water distribution pipeline (4) comprises a third delivery pipe (41), the third delivery pipe (41) being connected to the second delivery pipe (34), a plurality of water distribution pipes (42) being arranged at equal distances on both sides of the third delivery pipe (41), and a plurality of first through holes (43) being arranged at equal distances on the water distribution pipes (42).

5. The water circulation device in the hydrolysis acidification tank according to claim 3, characterized in that: The second water distribution pipeline (5) comprises a fourth delivery pipe (51), a plurality of second through holes (52) are provided on the fourth delivery pipe (51) at equal intervals, and both ends of the fourth delivery pipe (51) are rotatably mounted in the hydrolysis acidification tank (2) via a swivel joint (53).

6. The water circulation device in the hydrolysis acidification tank according to claim 5, characterized in that: A plurality of stirring blades (54) are arranged at equal distances on the fourth conveying pipe (51), and the fourth conveying pipe (51) is connected to the motor shaft of the motor (6).

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