A magnetic separation riverway side position treatment device suitable for large flow or flood season

Abstract

The utility model discloses a kind of magnetic separation riverway side position management device suitable for large flow or flood season, including power source component, magnetic disk, aluminium check ring, magnetic shaft, mud scraping component;Power source component is connected with magnetic shaft, several magnetic disks are evenly arranged on magnetic shaft, and aluminium check ring is equipped between several magnetic disks;The both sides of magnetic shaft are equipped with bearing seat, bearing seat is installed in reaction tank, and mud scraping component is installed on bearing seat;The side of reaction tank is connected with grating pool, grating pool should be communicated with riverway inlet through pipeline, the other side of reaction tank is connected with magnetic seed recovery pool, and reaction tank is connected with clean water pool through straight-through pipe through magnetic seed recovery pool.This application has the advantage of flexibility, in practical application, a variety of technologies can be flexibly combined, and water purification is carried out in river bank.

Description

Technical Field

[0001] This utility model belongs to the field of magnetic separation river channel side-by-side management device suitable for large flow or flood season. Background Technology

[0002] The restoration and treatment of urban river environments is often a long-term undertaking, requiring segmented and targeted approaches. Therefore, further control and treatment of external pollutants can be implemented through in-situ and adjacent treatment methods based on spatial location. While in-situ river treatment technologies offer advantages such as lower engineering investment, no need for additional pipeline systems, and direct treatment of all river water within the river itself, the effectiveness of some in-situ purification methods is often difficult to maintain sustainably due to limitations in river volume and the influence of factors such as water flow velocity and hydraulic scouring. Utility Model Content

[0003] In view of this, the present invention aims to provide a magnetic separation river channel side-by-side management device suitable for large flow rates or flood seasons, in order to solve at least one technical problem in the background art.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] A magnetic separation river channel bypass treatment device suitable for high flow rates or during the flood season includes a power source assembly, a disk, an aluminum retaining ring, a magnetic shaft, and a sludge scraping assembly;

[0006] The power source assembly is connected to the magnetic shaft, and several disks are evenly arranged on the magnetic shaft, with aluminum retaining rings between each disk.

[0007] Bearing seats are provided on both sides of the magnetic shaft. The bearing seats are installed inside the reaction tank, and the sludge scraping assembly is installed on the bearing seats.

[0008] One side of the reaction tank is connected to the grid tank, which should be connected to the river inlet via a pipe. The other side of the reaction tank is connected to the magnetic seed recovery tank, and the reaction tank is connected to the clear water tank through the magnetic seed recovery tank via a straight pipe.

[0009] Furthermore, a transmission wheel is provided on one side of the magnetic shaft;

[0010] The power source assembly includes a transmission motor, whose output shaft drives a transmission wheel via a transmission belt;

[0011] The disk includes a permanent magnet and an aluminum plate covering, with the aluminum plate covering the outside of the permanent magnet.

[0012] Furthermore, the sludge scraping assembly includes a first sludge scraper, a second sludge scraper, and a sludge scraper frame. The sludge scraper frame is U-shaped, and its two sides are respectively connected to two magnetic shafts.

[0013] Several first scraper bars and two second scraper bars are all mounted on the scraper frame, with the two second scraper bars positioned on either side of the first scraper bars;

[0014] The scraper assembly is tilted on the bearing housing and located on the upper half of the disk;

[0015] The second scraper is equipped with a mud discharge trough.

[0016] Furthermore, the width of the second scraper corresponds to the distance between the disks;

[0017] The first scraper rods are respectively set on the outer side of the two disks.

[0018] Furthermore, mounting plates are provided on both sides of the magnetic shaft, and the mounting plates are connected to the disk by mounting bolts.

[0019] Furthermore, a separation plate is provided on one side of the reaction tank. The separation plate is L-shaped, and the horizontal end of the separation plate is connected to the inner wall of the reaction tank.

[0020] The separation plate is located below the sludge scraper assembly;

[0021] The reaction tank is provided with through holes, which are located on one side of the separation plate;

[0022] The through-tube is positioned above the horizontal end of the separation plate.

[0023] Furthermore, the fence pool is equipped with mechanical fences;

[0024] The magnetic seed recovery pool is equipped with a magnetic drum separation system.

[0025] Furthermore, the clear water tank is equipped with a blower and a connecting pipe. The blower is connected to the connecting pipe through a pipe, the connecting pipe is connected to the horizontal pipe, and the horizontal pipe is connected to the inlet pipe. The length of the inlet pipe is lower than the length of the water surface.

[0026] The horizontal pipe is connected to the output pipe, which outputs water from the clear water tank.

[0027] Compared with existing technologies, the magnetic separation river channel bypass treatment device of this utility model, suitable for large flow rates or flood seasons, has the following advantages:

[0028] 1. This application has the advantage of flexibility, allowing for the combination of various technologies in practical applications to purify water in riverbank zones. The purified water is then returned to the river, achieving the goal of high efficiency and low consumption. Furthermore, the adjacent treatment method falls between in-situ and ex-situ methods, ensuring the preservation of the river's original functions without the need for large-scale pipeline construction.

[0029] 2. Among various side-site treatment methods, supermagnetic separation technology has the advantages of being fast, efficient, and requiring little space. However, attention needs to be paid to magnetic seed recovery and ecological safety, and the long-term impact of residual magnetic seeds on the aquatic ecosystem needs to be monitored to avoid sediment magnetization caused by magnetic powder accumulation. Therefore, this invention uses a permanent magnet separator as the main process component, which retains the advantages of supermagnetic separation technology while further avoiding the problems of magnetic seed recovery and ecological safety. Attached Figure Description

[0030] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0031] Figure 1 This is a schematic diagram of a magnetic separation river channel bypass treatment device suitable for high flow rates or flood season, as described in an embodiment of this utility model;

[0032] Figure 2 This is a schematic diagram of the magnetic shaft installation of a magnetic separation riverbank treatment device suitable for high flow rates or flood season, as described in an embodiment of this utility model.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Disk; 2. Aluminum retaining ring; 3. Magnetic shaft; 4. Bearing housing; 5. Reaction tank; 6. Grating tank; 7. Magnetic seed recovery tank; 8. Clear water tank; 9. Drive wheel; 10. First scraper bar; 11. Second scraper bar; 12. Scraper frame; 13. Sludge discharge trough; 14. Mounting plate; 15. Mounting bolt; 16. Separation plate; 17. Through hole; 18. Straight through pipe; 19. Machine fence; 20. Fan; 21. Connecting pipe; 22. Water inlet pipe; 23. Horizontal pipe; 24. Output pipe. Detailed Implementation

[0035] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0036] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0039] like Figures 1 to 2 As shown, a magnetic separation river channel bypass treatment device suitable for high flow rates or during flood season includes a power source assembly, a magnetic disk 1, aluminum retaining rings 2, a magnetic shaft 3, and a sludge scraping assembly. The power source assembly is connected to the magnetic shaft 3. Several magnetic disks 1 are evenly arranged on the magnetic shaft 3, and aluminum retaining rings 2 are provided between each of the magnetic disks 1. Bearing seats 4 are provided on both sides of the magnetic shaft 3. The bearing seats 4 are installed in a reaction tank 5, and the sludge scraping assembly is installed on the bearing seats 4. One side of the reaction tank 5 is connected to a grid tank 6, which is connected to the river inlet via a pipe. The other side of the reaction tank 5 is connected to a magnetic seed recovery tank 7, and the reaction tank 5 is connected to a clear water tank 8 through a straight pipe 18 passing through the magnetic seed recovery tank 7. A drive wheel 9 is provided on one side of the magnetic shaft 3. The power source assembly includes a transmission motor, and the output shaft of the transmission motor drives the transmission wheel to move via a conveyor belt. The magnetic disk 1 includes a permanent magnet block and an aluminum plate covering, with the aluminum plate covering the outside of the permanent magnet block.

[0040] The scraping assembly includes a first scraper bar 10, a second scraper bar 11, and a scraper frame 12. The scraper frame 12 is U-shaped, and its two sides are connected to two magnetic shafts 3 respectively. Several first scraper bars 10 and two second scraper bars 11 are all arranged on the scraper frame 12, with the two second scraper bars 11 arranged on both sides of the first scraper bars 10. The scraping assembly is inclinedly arranged on the bearing seat 4 and is located in the upper half of the disk 1. The second scraper bars 11 are provided with a mud discharge groove 13. The width of the second scraper bars 11 corresponds to the distance between the disks 1. The first scraper bars 10 are respectively arranged on the outer sides of the two disks 1. Mounting plates 14 are provided on both sides of the magnetic shafts 3, and the mounting plates 14 are connected to the disks 1 by mounting bolts 15.

[0041] A separation plate 16 is provided on one side of the reaction tank 5. The separation plate 16 is L-shaped, and its horizontal end is connected to the inner wall of the reaction tank 5. The separation plate is located below the sludge scraping assembly. A through hole 17 is provided on the reaction tank 5, and the through hole 17 is located on one side of the separation plate 16. A straight pipe 18 is located above the horizontal end of the separation plate 16. Furthermore, a mechanical fence is provided in the fence pool; a magnetic drum separation system is provided in the magnetic seed recovery pool 7.

[0042] The clear water tank 8 is equipped with a blower 20 and a connecting pipe 21. The blower 20 is connected to the connecting pipe 21 through a pipe. The connecting pipe 21 is connected to the horizontal pipe 23. The horizontal pipe 23 is connected to the inlet pipe 22. The length of the inlet pipe 22 is lower than the length of the water surface. The horizontal pipe 23 is connected to the outlet pipe 24. The outlet pipe 24 outputs water from the clear water tank 8.

[0043] Example 1

[0044] This technology uses a permanent magnet separator as the main process unit. When the magnetic field strength of disk 1 is ≥3000Gs, the single-unit design processing capacity can reach 1500m³ / h, which can meet the water quality treatment needs of rivers with conventional large flow rates or small to medium flow rates during the flood season. Furthermore, since this process equipment does not produce any secondary pollutants other than sludge, the main body of the equipment has an extremely long service life, and the magnetic seeds can be recycled, thus exhibiting a certain degree of environmental friendliness and further reducing the overall river treatment cost.

[0045] The main structure of this technology is: a pre-treatment grid with an aperture of ≤5mm + a permanent magnet disk separator 1 + a magnetic seed recovery pool 7.

[0046] In this process, the bar screen should be connected to the river inlet via a pipe.

[0047] In this process system, the reaction tank 5, where the permanent magnet disk 1 separator is located, is connected to the aforementioned grid tank.

[0048] In this process, the magnetic seed recovery tank 7 used for recovering magnetic seeds should be connected to the main reaction tank 5 (the reaction tank 5 where the permanent magnet disk 1 separator is located).

[0049] In this process, the clear water tank 8 used for end-of-pipe water collection should be connected to the magnetic seed recovery tank 7 mentioned above.

[0050] In this process, the treated river water should be discharged back into the water body from the clear water pool 8 after being fully mixed with air through the water vapor discharge pipe to achieve the purpose of water purification. The blower 20 blows air into the connecting pipe 21, and the water inlet pipe 22 enters the horizontal pipe 23. Under the action of the blower, the water is discharged from the clear water pool 8, which can be fully mixed with air.

[0051] In this process system, the front-end pretreatment uses conventional mechanical bar screens, with a mesh size ≤5mm selected as the pretreatment equipment. This is mainly used to intercept large particulate impurities in the river, such as branches and plastics, to prevent damage to the equipment.

[0052] In this process system, the main reaction tank 5, permanent magnet disk 1, and separator are the core components of the process design and must ensure the following parameters:

[0053] Magnetic field strength of disk 1: ≥3000Gs (neodymium iron boron magnet) to ensure adsorption efficiency.

[0054] Disk 1 pitch: 10-15mm (too wide reduces adsorption efficiency, too narrow easily causes clogging).

[0055] Rotation speed: 3-5 r / min (too fast will cause flocs to fall off, too slow will reduce the processing capacity).

[0056] The following are some precautions to take when applying this process to the main reaction tank with 5 disks and 1 separator:

[0057] Regularly flush the disk 1 gap with a mixture of high-pressure water and steam (2-3 times a day) to prevent the disk 1 gap from becoming clogged (high-pressure water and steam can be used for direct flushing here).

[0058] Disk 1 needs to be pre-treated by sealing it with epoxy resin and then spraying an aluminum oxide coating (aluminum plate covering) to further prevent corrosion from water and extend its service life.

[0059] Install a level sensor (the level sensor is set on the side wall of reaction tank 5, and the level sensor adopts existing technology. The level sensor is connected to the controller, and the controller adopts existing PLC technology, which is not shown in the figure) to automatically adjust the rotation speed of the turntable according to the inlet water flow rate, so as to better adapt to the operation under different water volumes.

[0060] The magnetic seed particle size needs to be selected according to the disk gap to avoid leakage or blockage.

[0061] The following are some precautions to take when applying this process to other reactor 5 equipment:

[0062] The magnetic drum separation system in magnetic seed recovery tank 7 must be compatible with the magnetic coating to prevent the coating from peeling off and contaminating the sludge. The magnetic drum separation system uses existing technology.

[0063] For the clear water tank, pay attention to the connection of the aeration system pipes to ensure that the treated water discharged back into the river is in a state of full mixing of water and air. Utilize the airlift system for oxygenation, aeration, and drainage to further save energy and reduce the overall power consumption of the equipment.

[0064] Advantages of applying this technology to riverbank remediation:

[0065] With the same treatment capacity, the hydraulic retention time is only 4-6 minutes, which is one-tenth to one-twentieth of the traditional sedimentation process, and pollutants can be separated in a short time.

[0066] It has a large processing capacity and is suitable for rivers with high flow rates. The equipment has a small footprint and is more suitable for rivers with limited space.

[0067] In addition to removing conventional pollutant indicators, this process has a high selective adsorption capacity for heavy metals (iron, zinc, nickel, etc.) and is especially suitable for the treatment of rivers polluted by chemical plants or industries.

[0068] The structure of the main reaction tank 5 and disk 1 in this process is shown in the figure:

[0069] It consists of nine parts. The base plate of disk 1 is made of stainless steel, with a diameter of 800-1000mm. Permanent magnet blocks are bonded to both sides of the base plate in a single-layer, densely packed manner with alternating polarities. A stainless steel or aluminum plate is then placed on each side to form disk 1. The number of layers varies depending on the required electric field strength, typically ranging from 2 to 4 layers. The number of disk 1 platters is determined based on the water treatment capacity.

[0070] The device works by using the magnetic force of disk 1 to attract the mixture of river water and magnetic powder onto the rotating disk 1. As disk 1 rotates, sludge mixed with magnetic seeds is carried to the water surface, scraped off by the tube plate, and then re-enters the water to re-attract particles from the water. This process is repeated continuously. The magnetic seeds are recycled by the magnetic drum and reused. The amount of sludge generated depends on the amount, and the treatment options are either on-site composting and greening or large-scale centralized treatment.

[0071] Important considerations for components of disk 1: Except for disk 1, all other structures, including the magnetic shaft 3 and scraper, must be made of stainless steel or other non-magnetic materials to prevent breakage of magnetic lines of force. The rotational speed of disk 1 should not be too high, approximately 0.5-2 r / min. Excessive speed will increase the water content of the sludge and reduce processing efficiency.

[0072] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A magnetic separation river channel bypass treatment device suitable for high flow rates or during flood season, characterized in that: Includes power source components, disk, aluminum retaining ring, magnetic shaft, and scraper assembly; The power source assembly is connected to the magnetic shaft, and several disks are evenly arranged on the magnetic shaft, with aluminum retaining rings between each disk. Bearing seats are provided on both sides of the magnetic shaft. The bearing seats are installed inside the reaction tank, and the sludge scraping assembly is installed on the bearing seats. One side of the reaction tank is connected to the grid tank, which should be connected to the river inlet via a pipe. The other side of the reaction tank is connected to the magnetic seed recovery tank, and the reaction tank is connected to the clear water tank through the magnetic seed recovery tank via a straight pipe.

2. The magnetic separation river channel bypass treatment device suitable for high flow rates or flood seasons according to claim 1, characterized in that: A drive wheel is provided on one side of the magnetic shaft; The power source assembly includes a transmission motor, whose output shaft drives a transmission wheel via a transmission belt; The disk includes a permanent magnet and an aluminum plate covering, with the aluminum plate covering the outside of the permanent magnet.

3. The magnetic separation river channel bypass treatment device suitable for high flow rates or flood seasons according to claim 1, characterized in that: The sludge scraping assembly includes a first sludge scraper, a second sludge scraper, and a sludge scraper frame. The sludge scraper frame is U-shaped, and its two sides are connected to two magnetic shafts respectively. Several first scraper bars and two second scraper bars are all mounted on the scraper frame, with the two second scraper bars positioned on either side of the first scraper bars; The scraper assembly is tilted on the bearing housing and located on the upper half of the disk; The second scraper is equipped with a mud discharge trough.

4. A magnetic separation river channel bypass treatment device suitable for high flow rates or flood seasons according to claim 3, characterized in that: The width of the second scraper corresponds to the distance between the disks; The first scraper rods are respectively set on the outer side of the two disks.

5. A magnetic separation river channel bypass treatment device suitable for high flow rates or flood seasons according to claim 1, characterized in that: Mounting plates are provided on both sides of the magnetic shaft, and the mounting plates are connected to the disk by mounting bolts.

6. A magnetic separation river channel bypass treatment device suitable for high flow rates or flood seasons according to claim 3, characterized in that: A separation plate is provided on one side of the reaction tank. The separation plate is L-shaped, and the horizontal end of the separation plate is connected to the inner wall of the reaction tank. The separation plate is located below the sludge scraper assembly; The reaction tank is provided with through holes, which are located on one side of the separation plate; The through-tube is positioned above the horizontal end of the separation plate.

7. A magnetic separation river channel bypass treatment device suitable for high flow rates or flood seasons according to claim 3, characterized in that: The fence pool is equipped with mechanical fences; The magnetic seed recovery pool is equipped with a magnetic drum separation system.

8. A magnetic separation river channel bypass treatment device suitable for high flow rates or flood seasons according to claim 3, characterized in that: The clear water tank is equipped with a blower and a connecting pipe. The blower is connected to the connecting pipe through a pipe, the connecting pipe is connected to the horizontal pipe, and the horizontal pipe is connected to the inlet pipe. The length of the inlet pipe is lower than the length of the water surface. The horizontal pipe is connected to the output pipe, which outputs water from the clear water tank.

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