Multi-stage adsorption precipitation type water recession nitrogen and phosphorus purification device

Abstract

The utility model discloses a multistage adsorption precipitation type recession nitrogen and phosphorus purification device, which relates to the technical field of nitrogen and phosphorus purification devices, and comprises a precipitation tank, an inclined plate is fixedly connected to the inner wall of the precipitation tank, the inclination angle of the inclined plate is 90 degrees, and a silt pump is connected to one side of the lower part of the precipitation tank and is used for pumping out silt; a water circulation mechanism is arranged on one side of the upper part of the sedimentation tank. According to the utility model, the design structure is reasonable, water below the inclined plate flows to the upper part of the inclined plate through the water circulation mechanism, so that the circulation of the water flow is realized, sludge is gathered under the driving of the water flow, and finally, the sludge is pumped out for treatment through the sludge pumping pump during dredging, so that the purpose of gathering the sludge is achieved, the concentrated pumping is facilitated, and the working efficiency is improved. Therefore, the problems that the existing sludge cannot be effectively gathered together after falling at the bottom of the sedimentation tank, the area to be cleaned is too large, and too much labor and time are consumed during cleaning are solved.

Description

Technical Field

[0001] This utility model relates to the technical field of nitrogen and phosphorus purification devices, specifically a multi-stage adsorption-precipitation type nitrogen and phosphorus purification device for dewatering. Background Technology

[0002] Nitrogen and phosphorus purification devices are environmental protection equipment specifically designed to remove nitrogen (N) and phosphorus (P) pollutants from water or wastewater. They are mainly used to prevent eutrophication and improve water quality, and are widely used in the purification of nitrogen and phosphorus-polluted water bodies such as agricultural runoff, industrial wastewater, or rainwater runoff. During the treatment process, zeolite, biochar, modified clay, and other adsorbent materials are typically used to quickly intercept dissolved phosphorus and some ammonia nitrogen, reducing the load on subsequent treatments. Iron / aluminum salts or lime are then added to precipitate residual phosphorus. Finally, ion exchange resins or nanomaterials are used to further remove trace amounts of dissolved nitrogen and phosphorus. Through a progressive multi-stage treatment of "adsorption-precipitation-re-adsorption," deep purification of wastewater is achieved, and this method is now widely used.

[0003] In the process of wastewater purification, wastewater needs to be injected into a sedimentation tank. Under the reaction of additives, sediment is generated, and sludge forms at the bottom of the sediment. It needs to be cleaned regularly. Currently, the sludge is usually removed by a combination of manual and mechanical methods. However, once the sludge falls to the bottom of the sedimentation tank, it cannot be effectively collected. The area to be cleaned is too large, and the cleaning process is too labor-intensive and time-consuming. To address these issues, we provide a multi-stage adsorption sedimentation type nitrogen and phosphorus purification device for wastewater discharge. Utility Model Content

[0004] 1) Technical problems to be solved

[0005] This invention proposes a multi-stage adsorption-sedimentation type nitrogen and phosphorus purification device for wastewater. By incorporating components such as inclined plates and a water circulation mechanism, the water circulation mechanism causes water to flow from below the inclined plates to above them, thus achieving water circulation. Driven by the water flow, the sludge above the inclined plates flows below them and accumulates at the bottom of the sedimentation tank. The inclined surface at the bottom of the sedimentation tank guides the sludge towards the sludge pump, and combined with the water flow, the sludge aggregates. Finally, during sludge removal, the sludge is extracted by the sludge pump for treatment. This achieves the goal of aggregating the sludge for centralized extraction, thus solving the problems of existing methods where sludge, after falling to the bottom of the sedimentation tank, cannot effectively aggregate, resulting in a large area to be cleaned and excessively labor-intensive and time-consuming cleaning processes.

[0006] (ii) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage adsorption sedimentation type dewatering nitrogen and phosphorus purification device, comprising a sedimentation tank, wherein an inclined plate is fixedly connected to the inner wall of the sedimentation tank, the inclined plate having an inclination angle of degrees, and a sludge pump is connected to the lower side of the sedimentation tank for pumping out sludge; a water circulation mechanism is provided on the upper side of the sedimentation tank for pumping water from below the inclined plate to above the inclined plate, and a filter mechanism is provided at the lower water inlet of the water circulation mechanism to prevent sludge from entering the interior of the water circulation mechanism; and a blocking mechanism is provided at the upper part of the inclined plate to allow air to circulate vertically.

[0008] Furthermore, the water circulation mechanism includes a water pump, which is fixedly installed on the outer surface of the sedimentation tank. A connecting pipe is connected to one side of the water pump, and both ends of the connecting pipe are fixedly connected to the sedimentation tank, with the lower end located below the inclined plate and the upper end located above the inclined plate.

[0009] Furthermore, the filtration mechanism includes a fixed plate, the upper surface of which is fixedly connected to an inclined plate, and the side surface of which is fixedly connected to a sedimentation tank.

[0010] Furthermore, the inner wall of the fixed plate is provided with a sliding groove, and a filter plate is slidably connected inside the sliding groove. The outer surface of the filter plate is also slidably connected to the inclined plate.

[0011] Furthermore, an mounting plate is fixedly connected to the upper surface of the filter plate, the mounting plate is detachably connected to the upper surface of the inclined plate, and a pull plate is fixedly connected to the upper surface of the mounting plate.

[0012] Furthermore, the blocking mechanism includes an electric telescopic rod, which is fixedly installed on the outer surface of the sedimentation tank, and a lifting plate is fixedly connected to the extended end of the electric telescopic rod.

[0013] Furthermore, a connecting rod is fixedly connected to the lower surface of the lifting plate, and a plug is fixedly connected to the lower surface of the connecting rod. The outer surface of the plug is slidably connected to the inclined plate.

[0014] (iii) Beneficial effects:

[0015] Compared with existing technologies, this multi-stage adsorption-precipitation type dewatering nitrogen and phosphorus purification device has the following beneficial effects:

[0016] I. This multi-stage adsorption sedimentation type nitrogen and phosphorus purification device for wastewater treatment utilizes components such as inclined plates and a water circulation mechanism. The water circulation mechanism causes water to flow from below the inclined plates to above them, thus achieving water circulation. Driven by the water flow, the sludge above the inclined plates flows to below them and accumulates at the bottom of the sedimentation tank. The inclined surface at the bottom of the sedimentation tank guides the sludge towards the sludge pump, and with the influence of the water flow, the sludge is aggregated. Finally, during sludge removal, the sludge is pumped out for treatment, achieving the purpose of sludge aggregation for centralized removal. This solves the problem that existing sludge, once it falls to the bottom of the sedimentation tank, cannot be effectively aggregated, resulting in a large area to be cleaned and excessively labor-intensive and time-consuming cleaning.

[0017] II. This multi-stage adsorption sedimentation type nitrogen and phosphorus purification device for wastewater discharge, through the setting of components such as a blocking mechanism and a filtration mechanism, prevents air from entering below the inclined plate when wastewater is added to the sedimentation tank. The electric telescopic rod drives the lifting plate upward, the lifting plate drives the connecting rod upward, and the connecting rod drives the plug upward, so that the plug no longer blocks the round opening on the inclined plate, so that air can flow upward at the round opening, which is convenient for venting. The filtration mechanism can prevent sediment from entering the interior of the water circulation mechanism, thereby preventing sediment from returning to the top of the inclined plate, so as to facilitate the accumulation of sludge. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

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

[0020] Figure 2 This is a cross-sectional view of the sedimentation tank in this utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of the water circulation mechanism of this utility model;

[0022] Figure 4 This is an exploded structural diagram of the fixing plate in this utility model;

[0023] Figure 5 This is a three-dimensional structural diagram of the blocking mechanism in this utility model.

[0024] In the diagram: 1. Sedimentation tank; 2. Inclined plate; 3. Sludge pump; 4. Water circulation mechanism; 401. Water pump; 402. Connecting pipe; 5. Filtration mechanism; 501. Fixed plate; 502. Sliding groove; 503. Filter plate; 504. Mounting plate; 505. Pulling plate; 6. Blocking mechanism; 601. Electric telescopic rod; 602. Lifting plate; 603. Connecting rod; 604. Plug; 7. Water outlet pipe; 8. Support leg. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] The sludge pump 3, water pump 401 and electric telescopic rod 601 in this utility model are all common electrical devices in the prior art, and this application will not elaborate on their models or internal structures.

[0027] like Figure 1-5 As shown, this utility model provides a technical solution: a multi-stage adsorption sedimentation type dewatering nitrogen and phosphorus purification device, including a sedimentation tank 1, an inclined plate 2 fixedly connected to the inner wall of the sedimentation tank 1, the inclined plate 2 having an inclination angle of 30 degrees, a sludge pump 3 connected to the lower side of the sedimentation tank 1 for pumping out sludge; a water circulation mechanism 4 provided on the upper side of the sedimentation tank 1 for pumping water from below the inclined plate 2 to above the inclined plate 2, a filter mechanism 5 provided at the lower inlet of the water circulation mechanism 4 to prevent sludge from entering the interior of the water circulation mechanism 4; a blocking mechanism 6 provided at the upper part of the inclined plate 2 for allowing air to circulate vertically, the input end of the sludge pump 3 connected to the sedimentation tank 1 to pump out the sludge at the bottom of the sedimentation tank 1, the lower part of the sedimentation tank 1 having a certain inclination. The sludge is directed in the opposite direction to the inclined plate 2, and works with the inclined plate 2 to guide the sludge so that it can accumulate at the input end of the sludge pump 3 for easy sludge removal. The water circulation mechanism 4 is used to make the water below the inclined plate 2 flow to the top of the inclined plate 2, and the sewage then moves down the inclined plate 2. At the position of the inclined plate 2 away from the water circulation mechanism 4, the sewage flows to the bottom of the inclined plate 2, thereby carrying the sediment to the bottom of the inclined plate 2. The filter mechanism 5 prevents the sediment from entering the interior of the water circulation mechanism 4, thereby preventing the sediment from returning to the top of the inclined plate 2. The side of the sedimentation tank 1 away from the sludge pump 3 is also connected to the outlet pipe 7, which is used to release the sewage after sedimentation for further treatment. Four support legs 8 are also fixedly installed on the lower surface of the sedimentation tank 1 to support the whole structure.

[0028] The water circulation mechanism 4 includes a water pump 401, which is fixedly installed on the outer surface of the sedimentation tank 1. A connecting pipe 402 is connected to one side of the water pump 401. Both ends of the connecting pipe 402 are fixedly connected to the sedimentation tank 1, with the lower end located below the inclined plate 2 and the upper end located above the inclined plate 2. The water pump 401 generates suction, which allows sewage to enter from the outside at the lower end of the connecting pipe 402 and flow out from the upper end of the connecting pipe 402, so as to realize the circulation of sewage.

[0029] The filtration mechanism 5 includes a fixed plate 501, the upper surface of which is fixedly connected to the inclined plate 2, and the side of which is fixedly connected to the sedimentation tank 1. There are two fixed plates 501.

[0030] The inner wall of the fixed plate 501 is provided with a sliding groove 502, and a filter plate 503 is slidably connected inside the sliding groove 502. The outer surface of the filter plate 503 is also slidably connected to the inclined plate 2. The two fixed plates 501 sandwich the filter plate 503 in the middle to ensure the stability of the filter plate 503. The filter plate 503 is provided with multiple small holes to prevent solid substances from passing through, so as to filter water.

[0031] A mounting plate 504 is fixedly connected to the upper surface of the filter plate 503. The mounting plate 504 is detachably connected to the upper surface of the inclined plate 2. A pull plate 505 is fixedly connected to the upper surface of the mounting plate 504. The mounting plate 504 is fixed to the inclined plate 2 by bolts. When needed, the bolts can be removed so that the pull plate 505 can be pulled, causing the mounting plate 504 to drive the filter plate 503 upward, thereby pulling out the filter plate 503 for replacement or cleaning of blockages.

[0032] The blocking mechanism 6 includes an electric telescopic rod 601, which is fixedly installed on the outer surface of the sedimentation tank 1. The extended end of the electric telescopic rod 601 is fixedly connected to a lifting plate 602. When the electric telescopic rod 601 extends or retracts, it can drive the lifting plate 602 to move up or down. There are two electric telescopic rods 601, which are located at both ends of the lifting plate 602, thereby increasing the stability of the lifting plate 602 when it moves up and down.

[0033] A connecting rod 603 is fixedly connected to the lower surface of the lifting plate 602, and a plug 604 is fixedly connected to the lower surface of the connecting rod 603. The outer surface of the plug 604 is slidably connected to the inclined plate 2. There are two connecting rods 603 and two plugs 604. Two round holes are opened on the inclined plate 2. The plug 604 is made of rubber and can block the round holes. When needed, the lifting plate 602 is driven to move upward by the electric telescopic rod 601. The lifting plate 602 drives the connecting rod 603 to move upward, and the connecting rod 603 drives the plug 604 to move upward, so that the plug 604 no longer blocks the round opening on the inclined plate 2, so that air can flow up and down at the round opening.

[0034] Working principle: During use, wastewater and additives are injected into the sedimentation tank 1. After sedimentation, the water below the inclined plate 2 flows to the top of the inclined plate 2 through the water circulation mechanism 4. Then, the wastewater moves down the inclined plate 2 and flows to the bottom of the inclined plate 2 at a position away from the water circulation mechanism 4, and then re-enters the water circulation mechanism 4, thus realizing water circulation. Under the action of the water flow, the solid sediments in the tank move with the water flow, causing the sludge above the inclined plate 2 to enter the bottom of the inclined plate 2 and accumulate at the bottom of the sedimentation tank 1. The sludge is guided towards the sludge pump 3 by the slope of the bottom of the sedimentation tank 1. With the influence of the water flow, the sludge is aggregated. Finally, during sludge removal, the sludge is pumped out by the sludge pump 3 for treatment, achieving the purpose of sludge aggregation for centralized pumping.

[0035] When adding sewage into sedimentation tank 1, in order to prevent air from appearing below inclined plate 2, the electric telescopic rod 601 drives the lifting plate 602 to move upward. The lifting plate 602 drives the connecting rod 603 to move upward. The connecting rod 603 drives the plug 604 to move upward, so that the plug 604 no longer blocks the round opening on inclined plate 2, so that air can flow upward at the round opening and facilitate exhaust.

[0036] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A multi-stage adsorption-sedimentation type nitrogen and phosphorus purification device for wastewater, comprising a sedimentation tank (1), characterized in that: The inner wall of the sedimentation tank (1) is fixedly connected with an inclined plate (2), and a sludge pump (3) is connected to the lower side of the sedimentation tank (1) for pumping out sludge. The sedimentation tank (1) is provided with a water circulation mechanism (4) on the upper side, which is used to pump the water below the inclined plate (2) to the upper part of the inclined plate (2). The water inlet end of the water circulation mechanism (4) is provided with a filter mechanism (5) to prevent sludge from entering the interior of the water circulation mechanism (4). The upper part of the inclined plate (2) is provided with a blocking mechanism (6) to allow air to circulate vertically.

2. The multi-stage adsorption-precipitation type nitrogen and phosphorus purification device for dewatering according to claim 1, characterized in that: The water circulation mechanism (4) includes a water pump (401), which is fixedly installed on the outer surface of the sedimentation tank (1). A connecting pipe (402) is connected to one side of the water pump (401). Both ends of the connecting pipe (402) are fixedly connected to the sedimentation tank (1), with the lower end located below the inclined plate (2) and the upper end located above the inclined plate (2).

3. The multi-stage adsorption-precipitation type nitrogen and phosphorus purification device for wastewater treatment according to claim 1, characterized in that: The filtration mechanism (5) includes a fixed plate (501), the upper surface of which is fixedly connected to the inclined plate (2), and the side of which is fixedly connected to the sedimentation tank (1).

4. The multi-stage adsorption-precipitation type nitrogen and phosphorus purification device for dewatering according to claim 3, characterized in that: The inner wall of the fixed plate (501) is provided with a sliding groove (502), and a filter plate (503) is slidably connected inside the sliding groove (502). The outer surface of the filter plate (503) is also slidably connected to the inclined plate (2).

5. The multi-stage adsorption-precipitation type nitrogen and phosphorus purification device for wastewater treatment according to claim 4, characterized in that: The upper surface of the filter plate (503) is fixedly connected to an mounting plate (504), the mounting plate (504) is detachably connected to the upper surface of the inclined plate (2), and the upper surface of the mounting plate (504) is fixedly connected to a pull plate (505).

6. The multi-stage adsorption-precipitation type nitrogen and phosphorus purification device for wastewater treatment according to claim 1, characterized in that: The blocking mechanism (6) includes an electric telescopic rod (601), which is fixedly installed on the outer surface of the sedimentation tank (1), and the extended end of the electric telescopic rod (601) is fixedly connected to a lifting plate (602).

7. The multi-stage adsorption-precipitation type nitrogen and phosphorus purification device for wastewater treatment according to claim 6, characterized in that: A connecting rod (603) is fixedly connected to the lower surface of the lifting plate (602), and a plug (604) is fixedly connected to the lower surface of the connecting rod (603). The outer surface of the plug (604) is slidably connected to the inclined plate (2).

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