Innovative process equipment for phosphorus recovery in sewage treatment

Abstract

The utility model discloses innovative process equipment for phosphorus recovery in sewage treatment, and relates to the technical field of sewage treatment, the innovative process equipment comprises a recovery barrel and an auxiliary component, the left side of the recovery barrel is provided with a pumping pipe, the lower end of the recovery barrel is connected with a blanking pipe, and the outer side of the blanking pipe is provided with a hydraulic rod I; and a sealing cover is installed at the output end of the first hydraulic rod, the auxiliary assembly used for assisting phosphorus crystal recovery is arranged at the top of the recovery barrel, the auxiliary assembly comprises a mounting frame, a second hydraulic rod and an auxiliary blocking plate, and the second hydraulic rod is installed in the middle of the mounting frame. According to the innovative process equipment for phosphorus recovery in sewage treatment, lifting of an auxiliary blocking plate is controlled through stretching and retracting of a hydraulic rod II, and the auxiliary blocking plate moves downwards to block the top of a discharging pipe before crystals are discharged, so that the crystals in the discharging pipe are separated from sewage in a recovery barrel; the magnesium ammonium phosphate crystals are taken out while the sewage in the recycling barrel is continuously crystallized.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to an innovative process and equipment for phosphorus recovery in wastewater treatment. Background Technology

[0002] Phosphorus is a non-renewable natural resource with limited reserves on Earth. With industrial development and population growth, the demand for phosphorus resources is constantly increasing, while the rate of phosphate mining is gradually accelerating, leading to the risk of phosphate resource depletion. Recovering phosphorus from wastewater treatment can convert phosphorus in wastewater into a reusable resource, achieving the recycling of phosphorus resources, reducing dependence on phosphate mines, and helping to ensure a long-term stable supply of phosphorus resources.

[0003] However, existing wastewater phosphorus recovery methods typically require the wastewater to be discharged before phosphorus crystals can be extracted, which is inconvenient. Utility Model Content

[0004] The purpose of this invention is to provide an innovative process and equipment for phosphorus recovery in wastewater treatment, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an innovative process equipment for phosphorus recovery in wastewater treatment, comprising a recovery tank and auxiliary components. A pumping pipe is provided on the left side of the recovery tank, and a feeding pipe is connected to the lower end of the recovery tank. A hydraulic rod is installed on the outside of the feeding pipe, and a closed cover is installed at the output end of the hydraulic rod. The auxiliary components for assisting phosphorus crystallization recovery are located on the top of the recovery tank, and the auxiliary components include a mounting frame, a second hydraulic rod, and an auxiliary blocking plate. The second hydraulic rod is installed in the middle of the mounting frame, and an auxiliary blocking plate is installed at the output end of the second hydraulic rod.

[0006] Furthermore, the lower end of the feeding pipe is connected to a pretreatment tank via a pump body, and a stirring rod is installed inside the pretreatment tank via a motor.

[0007] Furthermore, a side plate is installed on the upper side of the pretreatment bucket, and two side plates are symmetrically arranged about the central axis of the pretreatment bucket.

[0008] Furthermore, a limiting hole is provided in the middle of the side plate, and the side plate and the limiting hole are an integrated structure.

[0009] Furthermore, the limiting hole is provided with a crystallizer adding tube, and there are two crystallizer adding tubes.

[0010] Furthermore, a water inlet tank is connected to the left side of the pretreatment tank, and the pretreatment tank and the water inlet tank are internally connected.

[0011] Furthermore, the upper end of the water inlet tank is provided with a top cover, and a filter assembly for sewage filtration is provided on the right side of the water inlet tank.

[0012] Furthermore, the filter assembly includes an assembly frame and a filter screen, with the filter screen installed on the inner side of the assembly frame.

[0013] This utility model provides an innovative process and equipment for phosphorus recovery in wastewater treatment, which has the following beneficial effects:

[0014] 1. This utility model utilizes the internal structure of a recycling tank to react phosphates, magnesium ions, and ammonium ions in phosphorus-containing wastewater under certain conditions to generate magnesium ammonium phosphate crystals. These crystals are then separated from the wastewater through precipitation, thus achieving phosphorus recovery. A discharge pipe is used to collect the precipitated crystals. A sealing cover is used to open and close the discharge pipe under the drive of hydraulic rod one. Hydraulic rod two controls the raising and lowering of an auxiliary blocking plate through extension and retraction. Before the crystals are discharged, the auxiliary blocking plate moves down to seal the top of the discharge pipe, thus separating the crystals already inside the discharge pipe from the wastewater inside the recycling tank. This allows the magnesium ammonium phosphate crystals to be extracted while the wastewater inside the recycling tank continues to crystallize.

[0015] 2. This utility model uses a pretreatment tank to fully mix crystallizer and sewage under the action of a stirring rod. The side plate and limiting hole are used to limit the crystallizer addition pipe so that the crystallizer addition pipe can add crystallizer into the pretreatment tank. The assembly frame is used to separate the water inlet tank and the interior of the pretreatment tank. At the same time, the assembly frame and the filter screen filter the sewage and discharge larger impurities in the sewage. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an innovative process equipment for phosphorus recovery in wastewater treatment according to this utility model;

[0017] Figure 2 This is a schematic diagram of the auxiliary components of an innovative process equipment for phosphorus recovery in wastewater treatment according to this utility model.

[0018] Figure 3 This is a schematic diagram of the filter component structure of an innovative process equipment for phosphorus recovery in wastewater treatment according to this utility model.

[0019] In the diagram: 1. Recycling bin; 2. Pumping pipe; 3. Discharge pipe; 4. Hydraulic rod one; 5. Sealing cover; 6. Auxiliary components; 601. Mounting frame; 602. Hydraulic rod two; 603. Auxiliary blocking plate; 7. Pretreatment bin; 8. Stirring rod; 9. Side plate; 10. Limiting hole; 11. Crystallizer addition pipe; 12. Water inlet tank; 13. Top cover; 14. Filter assembly; 1401. Assembly frame; 1402. Filter screen. Detailed Implementation

[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0021] like Figure 1 As shown, an innovative process device for phosphorus recovery in wastewater treatment includes a recovery tank 1 and auxiliary components 6. A pumping pipe 2 is installed on the left side of the recovery tank 1. Inside the recovery tank 1, phosphate, magnesium ions, and ammonium ions in the phosphorus-containing wastewater react under certain conditions to generate magnesium ammonium phosphate crystals, which are then separated from the wastewater through precipitation, thus achieving phosphorus recovery. A feed pipe 3 is connected to the lower end of the recovery tank 1 for collecting the precipitated crystals. A hydraulic rod 4 is installed on the outside of the feed pipe 3, and a sealing cover 5 is installed at the output end of the hydraulic rod 4. The sealing cover 5 opens and closes the feed pipe 3 under the drive of the hydraulic rod 4. An auxiliary component 6 for assisting in the recovery of phosphorus crystals is installed on the top of the recovery tank 1. The auxiliary component 6 includes a mounting frame 601, a hydraulic rod 602, and an auxiliary blocking plate 603. The hydraulic rod 602 is installed in the middle of the mounting frame 601. The hydraulic rod 602 controls the raising and lowering of the auxiliary blocking plate 603 by telescopic control. The auxiliary blocking plate 603 is installed at the output end of the hydraulic rod 602. Before the crystals are discharged, the auxiliary blocking plate 603 moves down to block the top of the feed pipe 3, thereby separating the crystals already inside the feed pipe 3 from the wastewater inside the recovery tank 1. This allows the wastewater inside the recovery tank 1 to continue crystallizing while the magnesium ammonium phosphate crystals are being extracted.

[0022] like Figure 2 As shown, the lower end of the feed pipe 3 is connected to the pretreatment tank 7 via the pump body. The pretreatment tank 7 is used to fully mix the crystallizer and sewage under the action of the stirring rod 8. The stirring rod 8 is installed inside the pretreatment tank 7 via a motor. A side plate 9 is installed on the upper side of the pretreatment tank 7. The side plate 9 and the limiting hole 10 are used to limit the crystallizer adding pipe 11 so that the crystallizer adding pipe 11 can add the crystallizer into the pretreatment tank 7. Two side plates 9 are symmetrically arranged about the central axis of the pretreatment tank 7. The limiting hole 10 is opened in the middle of the side plate 9. The side plate 9 and the limiting hole 10 are integrated structures. The crystallizer adding pipe 11 is installed inside the limiting hole 10. The number of crystallizer adding pipes 11 is set to two. The upper end of the water inlet tank 12 is provided with a top cover 13.

[0023] like Figure 3As shown, the pretreatment tank 7 is connected to the inlet tank 12 on the left side, and the pretreatment tank 7 and the inlet tank 12 are internally connected. The inlet tank 12 is provided with a filter assembly 14 for sewage filtration on the right side. The filter assembly 14 includes an assembly frame 1401 and a filter screen 1402. The filter screen 1402 is installed on the inner side of the assembly frame 1401. While the assembly frame 1401 serves to separate the inlet tank 12 and the pretreatment tank 7, the assembly frame 1401 and the filter screen 1402 filter the sewage and discharge larger impurities in the sewage.

[0024] In summary, the innovative process and equipment for phosphorus recovery in this wastewater treatment are first based on... Figures 1-3 The structure shown connects the sewage pipe to the pipe on the top cover 13, allowing sewage to enter the inlet tank 12. After entering, the sewage passes through two layers of filter screens 1402 and enters the pretreatment tank 7. Then, the stirring rod 8 is driven by a motor to rotate, and at the same time, two crystallizer addition pipes 11 deliver crystallizer into the pretreatment tank 7. Under the action of the stirring rod 8, the crystallizer and sewage are thoroughly mixed. Then, the pump pipe 2 transports the pretreated sewage to the recovery tank 1 for sedimentation. Inside the recovery tank 1, the phosphates in the phosphorus-containing sewage react with magnesium ions and ammonium ions. Under certain conditions, the crystals react to form magnesium ammonium phosphate crystals, which are separated from the wastewater through precipitation and fall into the feed pipe 3. Then, the hydraulic rod 602 extends to control the movement of the auxiliary blocking plate 603, so that the auxiliary blocking plate 603 moves down to seal the top of the feed pipe 3 before the crystals are discharged, thus separating the crystals inside the feed pipe 3 from the wastewater inside the recovery tank 1. Then, the sealing cover 5 is driven by the hydraulic rod 4 to open and close the feed pipe 3 for the discharge of crystals, so that the wastewater inside the recovery tank 1 continues to crystallize while the magnesium ammonium phosphate crystals are removed.

[0025] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. An innovative process equipment for phosphorus recovery in wastewater treatment, comprising a recovery bucket (1) and an auxiliary assembly (6), characterized in that, A pumping pipe (2) is provided on the left side of the recycling bin (1), and a feeding pipe (3) is connected to the lower end of the recycling bin (1). A hydraulic rod (4) is installed on the outside of the feeding pipe (3), and a sealing cover (5) is installed at the output end of the hydraulic rod (4). The auxiliary component (6) for assisting in the recovery of phosphorus crystals is located on the top of the recycling bin (1), and the auxiliary component (6) includes a mounting frame (601), a hydraulic rod (602), and an auxiliary blocking plate (603). The hydraulic rod (602) is installed in the middle of the mounting frame (601), and an auxiliary blocking plate (603) is installed at the output end of the hydraulic rod (602).

2. The innovative process equipment for phosphorus recovery in sewage treatment according to claim 1, characterized in that, The lower end of the feed pipe (3) is connected to a pretreatment tank (7) via a pump body, and a stirring rod (8) is installed inside the pretreatment tank (7) via a motor.

3. The innovative process equipment for phosphorus recovery in sewage treatment according to claim 2, characterized in that, The pretreatment barrel (7) is equipped with a side plate (9) on the upper side, and two side plates (9) are symmetrically arranged about the central axis of the pretreatment barrel (7).

4. The innovative process equipment for phosphorus recovery in sewage treatment according to claim 3, characterized in that, The side plate (9) has a limiting hole (10) in the middle, and the side plate (9) and the limiting hole (10) are an integrated structure.

5. The innovative process equipment for phosphorus recovery in sewage treatment according to claim 4, characterized in that, The limiting hole (10) is provided with a crystallizer adding tube (11), and there are two crystallizer adding tubes (11).

6. The innovative process equipment for phosphorus recovery in sewage treatment according to claim 2, characterized in that, The pretreatment tank (7) is connected to a water inlet tank (12) on its left side, and the pretreatment tank (7) and the water inlet tank (12) are connected internally.

7. The innovative process equipment for phosphorus recovery in sewage treatment according to claim 6, characterized in that, The upper end of the water inlet tank (12) is provided with a top cover (13), and a filter assembly (14) for sewage filtration is provided on the right side of the water inlet tank (12).

8. The innovative process equipment for phosphorus recovery in sewage treatment according to claim 7, characterized in that, The filter assembly (14) includes an assembly frame (1401) and a filter screen (1402), and the filter screen (1402) is installed on the inner side of the assembly frame (1401).

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