A magnetic separation and recovery device based on electromagnetic synergistic sedimentation

Abstract

The utility model relates to wastewater treatment technical field, concretely relates to a kind of magnetic separation recovery device based on electromagnetic cooperative sedimentation, including processing cylinder, the bottom surface of processing cylinder is connected with conical bottom shell, the bottom of processing cylinder lateral wall is connected with water inlet, the top lateral wall of processing cylinder is connected with water outlet, the top surface of processing cylinder is installed with partition ring, several annular cylinders are coaxially arranged in processing cylinder, several annular cylinders are coaxially arranged and have interval, electromagnetic component is arranged in annular cylinder, the top surface of partition ring is equipped with the material scraping component for scraping magnetic material on annular cylinder. By improving magnetic separator, reduce the time of shutdown cleaning, improve the recovery ability of magnetic material.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically to a magnetic separation and recovery device based on electromagnetic synergistic sedimentation. Background Technology

[0002] Nano-zero valent iron or other magnetic materials are increasingly used in the field of water treatment. In order to improve the utilization rate of materials, it is often necessary to separate the materials and then reuse them. At present, common separation methods include: (1) adding flocculants such as PAM and then filtration. The materials are basically ineffective because they are coated by flocculants and cannot be reused; (2) using magnetic separators. At present, the magnetic separation devices on the market are basically made of permanent magnets, which can only separate very high concentrations of magnetic materials and need to be stopped and cleaned after a period of time. They are not good at capturing magnetic materials. Utility Model Content

[0003] The purpose of this invention is to provide a magnetic separation and recycling device based on electromagnetic synergistic sedimentation to solve the above problems. By improving the magnetic separator, the downtime for cleaning is reduced and the recycling capacity of magnetic materials is improved.

[0004] To achieve the above objectives, this utility model provides the following solution:

[0005] A magnetic separation and recycling device based on electromagnetic synergistic sedimentation includes a processing cylinder. The bottom surface of the processing cylinder is connected to a conical bottom shell. The bottom of the side wall of the processing cylinder is connected to a water inlet. The top side wall of the processing cylinder is connected to a water outlet. A partition ring is installed on the top surface of the processing cylinder. Several annular cylinders are coaxially arranged inside the processing cylinder. The several annular cylinders are coaxially nested and spaced apart. Electromagnetic components are provided inside the annular cylinders. The top surface of the partition ring is provided with a scraping component for scraping off magnetic materials from the annular cylinders.

[0006] Preferably, the scraping component includes a top receiving shell fixedly connected to the top surface of the partition ring. A first scraping ring is movably disposed within the top receiving shell. A plurality of second scraping rings are coaxially disposed inside the first scraping ring. The plurality of second scraping rings are coaxially sleeved with gaps between them. A central scraping column is disposed inside the innermost second scraping ring. The top surfaces of the first scraping ring, the second scraping rings, and the central scraping column are fixedly connected to the same mounting plate. A lifting component is mounted on the top surface of the mounting plate. The lifting component is mounted on the top surface of the top receiving shell. The gap between the first scraping ring and the outermost second scraping ring matches the thickness of the outermost annular cylinder. The thickness of the second scraping ring matches the gap between two adjacent annular cylinders. The outer diameter of the central scraping column matches the inner diameter of the innermost annular cylinder.

[0007] Preferably, the lifting component includes a linear servo motor fixedly connected to the top surface of the top receiving shell. The linear servo motor is vertically arranged, and its movable end passes through the top surface of the top receiving shell and is fixedly connected to the top surface of the mounting plate. A plurality of guide rods are fixedly connected to the top surface of the mounting plate. The guide rods are vertically arranged, and a plurality of guide sleeves are installed on the top surface of the top receiving shell. The guide sleeves slide in cooperation with the guide rods.

[0008] Preferably, the bottom surface of the first scraper ring is provided with a first inclined surface and a second inclined surface, the first inclined surface is located on the outer side, the second inclined surface is located on the inner side, and the bottom end of the first inclined surface is lower than the bottom end of the second inclined surface;

[0009] The bottom surface of the second scraper ring is provided with a first V-groove;

[0010] The bottom surface of the central scraper column is provided with a second V-shaped groove.

[0011] Preferably, the bottom surface of the conical bottom shell is connected to a discharge pipe, and a solenoid valve is installed on the discharge pipe.

[0012] Preferably, the outer wall of the first scraper ring is in a sealing sliding fit with the inner wall of the partition ring, and a gap is reserved between the outer wall of the first scraper ring and the inner wall of the processing cylinder.

[0013] Preferably, the electromagnetic component is an electromagnetic coil, which is installed inside the side wall of the annular cylinder 3 and is coaxially arranged with the annular cylinder.

[0014] This utility model has the following technical effects:

[0015] The electromagnetic component in this invention can be energized by pulsed electromagnetic control, which can adsorb nano-scale magnetic particles in wastewater onto the annular cylinder. The bottom of the treatment cylinder is provided with a conical bottom shell, which can cause large magnetic particles to settle under gravity, reducing the load of electromagnetic adsorption. The scraping component provided on the top surface of the partition ring is used to scrape the magnetic material off the annular cylinder. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2for Figure 1 Schematic diagram of the cross-sectional structure of AA;

[0019] Figure 3 This is a partial structural schematic diagram of Embodiment 2 of the present invention.

[0020] The components include: 1. Processing cylinder; 101. Inlet; 102. Outlet; 2. Conical bottom shell; 201. Discharge pipe; 203. Solenoid valve; 3. Annular cylinder; 4. Isolation ring; 5. Top receiving shell; 6. First scraper ring; 601. First inclined surface; 602. Second inclined surface; 7. Second scraper ring; 701. First V-groove; 8. Central scraper column; 801. Second V-groove; 9. Mounting plate; 10. Linear servo motor; 11. Guide rod; 12. Guide sleeve; 13. Mounting component; 14. Annular demagnetizer; 15. Connecting ring; 16. Lifting motor; 17. Lifting screw. Detailed Implementation

[0021] 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.

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0023] Example 1:

[0024] Reference Figures 1 to 2 As shown, this embodiment provides a magnetic separation and recycling device based on electromagnetic synergistic sedimentation, including a processing cylinder 1. The bottom surface of the processing cylinder 1 is connected to a conical bottom shell 2. The bottom of the side wall of the processing cylinder 1 is connected to a water inlet 101. The top side wall of the processing cylinder 1 is connected to a water outlet 102. A partition ring 4 is installed on the top surface of the processing cylinder 1. Several annular cylinders 3 are coaxially arranged inside the processing cylinder 1. The several annular cylinders 3 are coaxially nested and spaced apart. Electromagnetic components are provided inside the annular cylinders 3. The top surface of the partition ring 4 is provided with a scraping component for scraping off the magnetic material on the annular cylinders 3.

[0025] The electromagnetic component in this invention can be energized by pulsed electromagnetic control, which can adsorb nano-scale magnetic particles in wastewater onto the annular cylinder 3. The bottom of the treatment cylinder 1 is provided with a conical bottom shell 2, which can allow large magnetic particles to settle under gravity, reducing the load of electromagnetic adsorption. The scraping component provided on the top surface of the partition ring 4 is used to scrape the magnetic material off the annular cylinder 3.

[0026] Further optimization of the design: The scraping component includes a top receiving shell 5 fixedly connected to the top surface of the partition ring 4. A first scraping ring 6 is movably disposed inside the top receiving shell 5. Several second scraping rings 7 are coaxially disposed inside the first scraping ring 6. The several second scraping rings 7 are coaxially sleeved with gaps. A central scraping column 8 is disposed inside the innermost second scraping ring 7. The top surfaces of the first scraping ring 6, the second scraping rings 7, and the central scraping column 8 are fixedly connected to the same mounting plate 9. A lifting component is installed on the top surface of the mounting plate 9. The lifting component is installed on the top surface of the top receiving shell 5. The gap between the first scraping ring 6 and the outermost second scraping ring 7 matches the thickness of the outermost annular cylinder 3. The thickness of the second scraping ring 7 matches the gap between two adjacent annular cylinders 3. The outer diameter of the central scraping column 8 matches the inner diameter of the innermost annular cylinder 3.

[0027] The design is further optimized so that the lifting component includes a linear servo motor 10 fixedly connected to the top surface of the top housing 5. The linear servo motor 10 is vertically arranged, and the movable end of the linear servo motor 10 passes through the top surface of the top housing 5 and is fixedly connected to the top surface of the mounting plate 9. Several guide rods 11 are fixedly connected to the top surface of the mounting plate 9. The guide rods 11 are vertically arranged, and several guide sleeves 12 are installed on the top surface of the top housing 5. The guide sleeves 12 slide with the guide rods 11.

[0028] The linear servo motor 10 is mounted on the top surface of the top housing 5 via the mounting part 13. The electromagnetic component is controlled by switching on and off. When the power is off, the linear servo motor 10 is extended, which pushes the mounting plate 9 downward, thereby pushing the first scraping ring 6, the second scraping ring 7, and the central scraping column 8 downward to scrape off the magnetic material adsorbed on the side wall of the annular cylinder 3. In this way, when the electromagnetic component is powered on again, there will be no magnetic material on the annular cylinder 3, which can increase the separation efficiency.

[0029] The scheme is further optimized by providing a first inclined surface 601 and a second inclined surface 602 on the bottom surface of the first scraper ring 6. The first inclined surface 601 is located on the outer side, and the second inclined surface 602 is located on the inner side. The bottom end of the first inclined surface 601 is lower than the bottom end of the second inclined surface 602.

[0030] This configuration of the first inclined surface 601 and the second inclined surface 602 on the bottom surface of the first scraper ring 6 ensures that while the second inclined surface 602 scrapes down the magnetic material during the downward movement of the first scraper ring 6, the first inclined surface 601 gathers the magnetic material inside, reducing the phenomenon of the magnetic material being pushed and diffused by water during the downward movement of the first scraper ring 6.

[0031] The bottom surface of the second scraper ring 7 is provided with a first V-groove 701;

[0032] The bottom surface of the central scraper column 8 is provided with a second V-shaped groove 801.

[0033] The first V-groove 701 and the second V-groove 801 are designed to make it easier to scrape off the magnetic material from the annular cylinder 3.

[0034] In a further optimized design, the bottom surface of the conical bottom shell 2 is connected to a discharge pipe 201, and a solenoid valve 203 is installed on the discharge pipe 201.

[0035] The discharge pipe 201, in conjunction with the solenoid valve 203, allows the magnetic material inside the conical bottom shell 2 to be discharged after the equipment has been running for a period of time.

[0036] The scheme is further optimized so that the outer wall of the first scraper ring 6 and the inner wall of the partition ring 4 are sealed and slidably fitted, and a gap is reserved between the outer wall of the first scraper ring 6 and the inner wall of the processing cylinder 1.

[0037] This configuration ensures that during the downward movement of the first scraper ring 6, the water inside the treatment cylinder 1 can be discharged through the gap between the outer wall of the first scraper ring 6 and the inner wall of the treatment cylinder 1. The sealing sliding fit between the outer wall of the first scraper ring 6 and the inner wall of the partition ring 4 is to ensure that the water inside the treatment cylinder 1 does not enter the top receiving shell 5.

[0038] In a further optimized design, the electromagnetic component is an electromagnetic coil, which is installed inside the side wall of the annular cylinder 3 and is coaxially arranged with the annular cylinder 3.

[0039] Example 2:

[0040] Reference Figure 3 As shown, the difference between the electromagnetic synergistic sedimentation magnetic separation and recovery device of this embodiment and Embodiment 1 is only that a connecting ring 15 is vertically slidably connected inside the top receiving shell 5, and an annular demagnetizer 14 is installed on the inner side of the connecting ring 15. The annular demagnetizer 14 is movably sleeved on the outer side of the first scraping ring 6. A lifting screw 17 is threadedly connected to one side of the connecting ring 15. The lifting screw 17 is vertically arranged, and the top end of the lifting screw 17 passes through the top wall of the top receiving shell 5 and is axially connected to the output shaft of the lifting motor 16. The lifting motor 16 is fixedly connected to the top wall of the top receiving shell 5.

[0041] In this embodiment, by controlling the rotation of the lifting motor 16, the lifting screw 17 can be driven to rotate, which in turn causes the connecting ring 15 to drive the annular demagnetizer 14 to move up and down. When the first scraping ring 6, the second scraping ring 7, and the central scraping column 8 are not scraping material downwards, the up and down movement of the annular demagnetizer 14 can eliminate the magnetism attached to the first scraping ring 6, the second scraping ring 7, and the central scraping column 8 during the scraping process, which is more conducive to the operation of the entire device.

[0042] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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 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.

[0043] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A magnetic separation and recovery device based on electromagnetic synergistic sedimentation, characterized in that, The device includes a processing cylinder (1), the bottom surface of which is connected to a conical bottom shell (2), the bottom of the side wall of the processing cylinder (1) is connected to a water inlet (101), the top side wall of the processing cylinder (1) is connected to a water outlet (102), a partition ring (4) is installed on the top surface of the processing cylinder (1), and several annular cylinders (3) are coaxially arranged inside the processing cylinder (1). The several annular cylinders (3) are coaxially fitted and spaced apart. An electromagnetic component is provided inside the annular cylinder (3), and a scraping component for scraping off magnetic material from the annular cylinder (3) is provided on the top surface of the partition ring (4).

2. The magnetic separation and recovery device based on electromagnetic synergistic sedimentation according to claim 1, characterized in that, The scraping component includes a top receiving shell (5) fixedly connected to the top surface of the partition ring (4). A first scraping ring (6) is movably disposed inside the top receiving shell (5). A plurality of second scraping rings (7) are coaxially disposed inside the first scraping ring (6). The plurality of second scraping rings (7) are coaxially sleeved and spaced apart. A central scraping column (8) is disposed inside the innermost second scraping ring (7). The top surfaces of the first scraping ring (6), the second scraping ring (7), and the central scraping column (8) are fixedly connected to the same mounting plate (9). A lifting component is installed on the top surface of the mounting plate (9). The lifting component is installed on the top surface of the top receiving shell (5). The interval between the first scraping ring (6) and the outermost second scraping ring (7) matches the thickness of the outermost annular cylinder (3). The thickness of the second scraping ring (7) matches the interval between two adjacent annular cylinders (3). The outer diameter of the central scraping column (8) matches the inner diameter of the innermost annular cylinder (3).

3. The magnetic separation and recovery device based on electromagnetic synergistic sedimentation according to claim 2, characterized in that, The lifting component includes a linear servo motor (10) fixedly connected to the top surface of the top housing (5). The linear servo motor (10) is vertically arranged. The movable end of the linear servo motor (10) passes through the top surface of the top housing (5) and is fixedly connected to the top surface of the mounting plate (9). A plurality of guide rods (11) are fixedly connected to the top surface of the mounting plate (9). The guide rods (11) are vertically arranged. A plurality of guide sleeves (12) are installed on the top surface of the top housing (5). The guide sleeves (12) slide in cooperation with the guide rods (11).

4. The magnetic separation and recovery device based on electromagnetic synergistic sedimentation according to claim 3, characterized in that, The bottom surface of the first scraper ring (6) is provided with a first inclined surface (601) and a second inclined surface (602). The first inclined surface (601) is located on the outside and the second inclined surface (602) is located on the inside. The bottom end of the first inclined surface (601) is lower than the bottom end of the second inclined surface (602). The bottom surface of the second scraper ring (7) is provided with a first V-groove (701); The bottom surface of the central scraper column (8) is provided with a second V-shaped groove (801).

5. A magnetic separation and recovery device based on electromagnetic synergistic sedimentation according to claim 1, characterized in that, The bottom surface of the conical bottom shell (2) is connected to a discharge pipe (201), and a solenoid valve (203) is installed on the discharge pipe (201).

6. A magnetic separation and recovery device based on electromagnetic synergistic sedimentation according to claim 2, characterized in that, The outer wall of the first scraper ring (6) is sealed and slidably fitted with the inner wall of the partition ring (4), and a gap is reserved between the outer wall of the first scraper ring (6) and the inner wall of the processing cylinder (1).

7. A magnetic separation and recovery device based on electromagnetic synergistic sedimentation according to claim 1, characterized in that, The electromagnetic component is an electromagnetic coil, which is installed inside the side wall of the annular cylinder (3) and is coaxially arranged with the annular cylinder (3).

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