A high-efficiency magnetic separation and recovery device for sewage treatment

Abstract

The application provides a high-efficiency magnetic separation and recovery device for sewage treatment, and belongs to the technical field of sewage treatment, and is used for solving the problem of poor magnetic powder recovery efficiency of the prior art. The device comprises a bottom plate and a switching assembly, the switching assembly comprises a plurality of stand columns, the stand columns are all fixed above the bottom plate, an installation plate is fixed above the stand columns, a circular plate II is rotationally arranged above the installation plate, an arc-shaped gear rack is fixed above the circular plate II, a rotating shaft I is fixed above the circular plate II, a circular plate I is fixed above the rotating shaft I, an arc plate is fixed below the circular plate I, a turnover assembly is arranged above the bottom plate, a separation assembly and a scraping assembly are fixed to the turnover assembly, a collecting assembly is arranged on the side of the bottom plate, a crushing assembly is arranged above the collecting assembly, and a cutting assembly is arranged on the side of the crushing assembly. The device can fully recover the magnetic powder, avoids waste of the magnetic powder, and improves the magnetic separation and recovery efficiency.

Description

Technical Field

[0001] This invention belongs to the field of wastewater treatment technology and relates to a high-efficiency magnetic separation and recovery device for wastewater treatment. Background Technology

[0002] Magnetic coagulation is a novel wastewater treatment technology. Magnetic powder, a magnetic material, possesses strong magnetism and can adsorb pollutants, effectively reducing the pollutant content of wastewater. This technology mainly includes two methods: magnetic adsorption and ion exchange. In the wastewater treatment process, when starting the magnetic coagulation process, a coagulant is first added, then PAM (polyacrylamide) is turned on for stirring, followed by the introduction of water. This process ensures the effective binding of the magnetic powder and pollutants in the wastewater. The treated wastewater enters a clarification tank for sedimentation. Part of the precipitate is returned to the mixing tank for further utilization, while the remainder is sent to a magnetic separator for magnetic powder recovery.

[0003] In existing magnetic powder recycling processes, due to the strong magnetic force of the magnetic drum, the rotating brush often cannot completely separate the magnetic powder from the magnetic drum, resulting in magnetic powder waste, decreased magnetic force loss of the magnetic drum, and high energy consumption of the equipment. Therefore, we propose a high-efficiency magnetic separation and recycling device for wastewater treatment. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a high-efficiency magnetic separation and recovery device for wastewater treatment. The technical problem to be solved by this device is: how to fully recover magnetic powder, thereby avoiding waste of magnetic powder and improving magnetic separation and recovery efficiency.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] A high-efficiency magnetic separation and recovery device for wastewater treatment includes a base plate and a switching assembly. The switching assembly includes several columns, all fixed above the base plate. A mounting plate is fixed above the columns. A second circular plate is rotatably mounted above the mounting plate. An arc-shaped rack is fixed above the second circular plate. A first rotating shaft is fixed above the second circular plate. A first circular plate is fixed above the first rotating shaft. An arc plate is fixed below the first circular plate. Both sides of the arc plate are chamfered. A rotating motor is fixed below the mounting plate. The output shaft of the rotating motor is fixed to the first rotating shaft. A tilting assembly is mounted above the base plate. A separation assembly and a scraping assembly are fixed on the tilting assembly. A collecting assembly is mounted on the side of the base plate. A crushing assembly is mounted above the collecting assembly. A cutting assembly is mounted on the side of the crushing assembly.

[0007] The working principle of this invention is as follows: Magnetic precipitate is placed inside the cutting assembly, which initially crushes the precipitate. The crushed precipitate then falls into the crushing assembly, which thoroughly crushes it, separating the magnetic powder from the contaminants. The crushed precipitate is then discharged onto the flipping assembly, which further separates the magnetic powder from the contaminants. When enough magnetic powder is adsorbed onto the flipping assembly, the rotating motor drives the rotating shaft one to rotate via its output shaft. The rotating shaft one drives the circular plates one and two to rotate. The circular plate one drives the arc plate to press against the rotating column, positioning the arc plate between the limiting ball and the gear, thus pressing the rotating column to a horizontal state. The rotating column then drives the flipping assembly to flip, and the scraping assembly scrapes the magnetic powder onto the collecting assembly.

[0008] The flipping assembly includes a sleeve and two upright plates, both of which are fixed above the base plate. Rotating columns are fixed on both sides of the sleeve, and the two rotating columns are rotatably mounted on the upright plates at corresponding positions. A rotating column is rotatably mounted inside the sleeve, with a limit ball fixed at one end of the rotating column and a gear fixed on the rotating column. Fixing blocks are provided on the sides of the two upright plates, and a limit column is fixed between the two fixing blocks.

[0009] With the above structure, the arc-shaped rack drives the gear to rotate, and the gear drives the rotating column to rotate.

[0010] The separation assembly includes a flip plate, which is fixed to the other end of the rotating column. The flip plate has two installation chambers inside, and a vibration motor and an electromagnet are respectively installed inside the two installation chambers. Baffles are fixed on both sides of the flip plate.

[0011] With the above structure, the rotating column drives the tilting plate to rotate, thereby tilting the plate. The vibration motor can drive the tilting plate to vibrate, thus facilitating material discharge. When the electromagnet is energized, it can attract magnetic powder, thereby recovering the magnetic powder.

[0012] The collection assembly includes a collection box, which is fixed to the side of the base plate. A material collection bin is provided on the side of the collection box, and a U-shaped plate is fixed on the top of the collection box.

[0013] With the above structure, the collection box can collect the recovered magnetic powder in a centralized manner, and the aggregate box can collect the separated dirt in a centralized manner.

[0014] The crushing assembly includes a crushing cylinder, which is fixed above a U-shaped plate. A second rotating shaft is rotatably installed inside the crushing cylinder, and several crushing blades are fixed on the second rotating shaft. A crushing motor is fixed above the crushing cylinder, and the output shaft of the crushing motor is connected to the second rotating shaft through a coupling. A discharge pipe is fixed below the crushing cylinder, and a control valve is installed above the discharge pipe.

[0015] With the above structure, the crushing motor drives the second rotating shaft to rotate through the output shaft. The second rotating shaft drives several crushing blades to rotate. The crushing blades thoroughly crush the magnetic precipitate. The discharge pipe and control valve work together to discharge the crushed magnetic precipitate from the crushing cylinder.

[0016] The cutting assembly includes a cutting box, which is fixed to the side of the crushing cylinder. A feed hopper is fixed to the side of the cutting box and is connected to the cutting box. A cutting motor is fixed to the side of the cutting box, and a cutting blade wheel is fixed on the output shaft of the cutting motor. The cutting blade wheel is located inside the cutting box. The bottom of the cutting box is V-shaped, and a connecting hole is provided at the bottom of the cutting box and on the crushing cylinder.

[0017] Using the above structure, the magnetic precipitate is placed inside the feed hopper, which then transports it to the inside of the cutting box. At the same time, the cutting motor drives the cutting wheel to rotate via the output shaft. The cutting wheel performs preliminary crushing of the magnetic precipitate, and the crushed magnetic precipitate falls into the crushing cylinder through the connecting hole.

[0018] The scraping assembly includes a first fixing plate and a second fixing plate. The first fixing plate is fixed between two upright plates, and the second fixing plate is fixed above the collection box. Two limiting rods are fixed between the first fixing plate and the second fixing plate. A threaded rod is rotatably provided between the first fixing plate and the second fixing plate. A scraping box is threadedly connected to the threaded rod. The scraping box has a scraping groove inside. A scraping motor is fixed to the side of the first fixing plate. The output shaft of the scraping motor is connected to the threaded rod through a coupling.

[0019] With the above structure, the scraping motor drives the threaded rod to rotate through the output shaft. The threaded rod drives the scraping box to move. The scraping box scrapes the area below the flip plate, thereby scraping the magnetic powder below the flip plate and scraping the magnetic powder away from the electromagnet range. Then the magnetic powder falls into the interior of the scraping box and falls into the interior of the collection box through the scraping groove for collection.

[0020] Compared with existing technologies, this high-efficiency magnetic separation and recovery device for wastewater treatment has the following advantages:

[0021] By coordinating the switching, flipping, separating, and crushing components, the rotating motor drives the rotating shaft one to rotate via its output shaft. The rotating shaft one drives the circular plates one and two to rotate. The circular plate one drives the arc plate to press against the rotating column, positioning the arc plate between the limiting ball and the gear, thus pressing the rotating column to a horizontal state. The rotating column then drives the flipping plate to rotate, keeping the flipping plate horizontal. Subsequently, the circular plate two drives the arc-shaped rack to rotate. The arc-shaped rack meshes with the gear, thereby driving the rotating column to rotate. The rotating column drives the flipping plate to flip. Afterward, the arc-shaped rack and gear disengage, and the arc plate disengages from the rotating column, thus restoring the flipping plate to its tilted state. The scraping motor drives the threaded rod to rotate via its output shaft. The threaded rod drives the scraping box to move. The scraping box scrapes the area below the flipping plate, thereby scraping away the magnetic powder below the flipping plate, causing the magnetic powder to fall out of the electromagnet's range and fall into the interior of the scraping box. This allows for the full recovery of the magnetic powder, avoiding waste and improving the magnetic separation and recovery efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the front three-dimensional structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the rear three-dimensional structure of the present invention;

[0024] Figure 3 This is a side view of the structure of the present invention;

[0025] Figure 4 This is a cross-sectional structural diagram of the present invention;

[0026] Figure 5 This is a cross-sectional structural diagram of some components in this invention;

[0027] Figure 6 yes Figure 1 Enlarged structural diagram at point A;

[0028] In the diagram: 1. Vertical plate; 2. Limiting post; 3. Circular plate one; 4. Arc plate; 5. Arc-shaped rack; 6. Column; 7. Circular plate two; 8. Base plate; 9. Mounting plate; 10. Fixing plate one; 11. Scraper motor; 12. Collection box; 13. Material collection box; 14. Tilting plate; 15. Crushing cylinder; 16. Crushing motor; 17. Feed hopper; 18. Fixing plate two; 19. Fixing block; 20. Rotating shaft one; 21. 21. Cutting motor; 22. Cutting box; 23. Discharge pipe; 24. Baffle; 25. Gear; 26. Rotating motor; 27. Scraping box; 28. Limiting rod; 29. ​​U-shaped plate; 30. Threaded rod; 31. Vibrating motor; 32. Electromagnet; 33. Control valve; 34. Rotating shaft II; 35. Crushing blade; 36. Cutting wheel; 37. Scraping groove; 38. Rotating column; 39. Sleeve; 40. Rotating column. Detailed Implementation

[0029] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0030] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0031] In the description of this patent, it should be understood that the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this patent 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 patent.

[0032] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0033] Please see Figure 1-6 This embodiment provides a high-efficiency magnetic separation and recovery device for sewage treatment, including a base plate 8 and a switching assembly. The switching assembly includes several columns 6, all of which are fixed above the base plate 8. A mounting plate 9 is fixed above the columns 6. A circular plate 7 is rotatably mounted above the mounting plate 9. An arc-shaped rack 5 is fixed above the circular plate 7. A rotating shaft 20 is fixed above the circular plate 7. A circular plate 3 is fixed above the rotating shaft 20. An arc plate 4 is fixed below the circular plate 3. Both sides of the arc plate 4 are chamfered. A rotating motor 26 is fixed below the mounting plate 9. The output shaft of the rotating motor 26 is fixed on the rotating shaft 20. A flipping assembly is provided above the base plate 8. A separation assembly and a scraping assembly are fixed on the flipping assembly. A collection assembly is provided on the side of the base plate 8. A crushing assembly is provided above the collection assembly. A cutting assembly is provided on the side of the crushing assembly.

[0034] The magnetic precipitate is placed inside the cutting assembly, which initially crushes it. The crushed precipitate then falls into the crushing assembly, which thoroughly crushes it, separating the magnetic powder from the contaminants. The crushed precipitate is then discharged onto the flipping assembly, which separates the magnetic powder from the contaminants. Once enough magnetic powder has been adsorbed onto the flipping assembly, the rotating motor 26 drives the rotating shaft 20 to rotate via its output shaft. The rotating shaft 20 drives the circular plates 3 and 7 to rotate. The circular plate 3 drives the arc plate 4 to press against the rotating column 38, positioning the arc plate 4 between the limiting ball and the gear 25, thus pressing the rotating column 38 to a horizontal position. The rotating column 38 then drives the flipping assembly to flip, and the scraping assembly scrapes the magnetic powder onto the collecting assembly.

[0035] The flipping assembly includes a sleeve 39 and two upright plates 1, both of which are fixed above the base plate 8. Rotating columns 40 are fixed on both sides of the sleeve 39, and the two rotating columns 40 are rotatably mounted on the corresponding upright plates 1. A rotating column 38 is rotatably mounted inside the sleeve 39. A limiting ball is fixed to one end of the rotating column 38, and a gear 25 is fixed on the rotating column 38. Fixing blocks 19 are provided on the sides of the two upright plates 1, and a limiting column 2 is fixed between the two fixing blocks 19. The arc-shaped rack 5 drives the gear 25 to rotate, and the gear 25 drives the rotating column 38 to rotate.

[0036] The separation assembly includes a tilting plate 14, which is fixed to the other end of the rotating column 38. The tilting plate 14 has two installation chambers inside, and a vibration motor 31 and an electromagnet 32 ​​are respectively installed inside the two installation chambers. Baffles 24 are fixed on both sides of the tilting plate 14. The rotating column 38 drives the tilting plate 14 to rotate, thereby tilting the tilting plate 14. The vibration motor 31 can drive the tilting plate 14 to vibrate, thereby facilitating material discharge. When the electromagnet 32 ​​is energized, it can attract magnetic powder, thereby recovering the magnetic powder.

[0037] The collection assembly includes a collection box 12, which is fixed to the side of the base plate 8. A material collection box 13 is provided on the side of the collection box 12, and a U-shaped plate 29 is fixed on the top of the collection box 12. The collection box 12 can collect the recovered magnetic powder in a centralized manner, and the material collection box 13 can collect the separated pollutants in a centralized manner.

[0038] The pulverizing assembly includes a pulverizing cylinder 15, which is fixed above a U-shaped plate 29. A rotating shaft 34 is rotatably mounted inside the pulverizing cylinder 15, and several pulverizing blades 35 are fixed on the rotating shaft 34. A pulverizing motor 16 is fixed above the pulverizing cylinder 15, and the output shaft of the pulverizing motor 16 is connected to the rotating shaft 34 via a coupling. A discharge pipe 23 is fixed below the pulverizing cylinder 15, and a control valve 33 is installed above the discharge pipe 23. The pulverizing motor 16 drives the rotating shaft 34 to rotate via its output shaft, and the rotating shaft 34 drives the several pulverizing blades 35 to rotate. The several pulverizing blades 35 thoroughly pulverize the magnetic precipitate. The discharge pipe 23 and the control valve 33 work together to discharge the magnetic precipitate from the pulverizing cylinder 15.

[0039] The cutting assembly includes a cutting box 22, which is fixed to the side of the crushing cylinder 15. A feed hopper 17 is fixed to the side of the cutting box 22 and is connected to the cutting box 22. A cutting motor 21 is fixed to the side of the cutting box 22, and a cutting blade wheel 36 is fixed on the output shaft of the cutting motor 21. The cutting blade wheel 36 is located inside the cutting box 22. The bottom of the cutting box 22 is V-shaped, and both the bottom of the cutting box 22 and the crushing cylinder 15 have connecting holes. Magnetic precipitate is placed inside the feed hopper 17, which transports the magnetic precipitate into the cutting box 22. At the same time, the cutting motor 21 drives the cutting blade wheel 36 to rotate through the output shaft. The cutting blade wheel 36 performs preliminary crushing of the magnetic precipitate, and the crushed magnetic precipitate falls into the crushing cylinder 15 through the connecting holes.

[0040] The scraping assembly includes a first fixing plate 10 and a second fixing plate 18. The first fixing plate 10 is fixed between two upright plates 1, and the second fixing plate 18 is fixed above the collection box 12. Two limiting rods 28 are fixed between the first fixing plate 10 and the second fixing plate 18. A threaded rod 30 is rotatably provided between the first fixing plate 10 and the second fixing plate 18. A scraping box 27 is threadedly connected to the threaded rod 30. The scraping box 27 has a scraping groove 37 inside. A scraping motor 11 is fixed to the side of the first fixing plate 10. The output shaft of the scraping motor 11 is connected to the threaded rod 30 through a coupling. The scraping motor 11 drives the threaded rod 30 to rotate through the output shaft. The threaded rod 30 drives the scraping box 27 to move. The scraping box 27 scrapes the area below the flipping plate 14, thereby scraping the magnetic powder below the flipping plate 14, causing the magnetic powder to be scraped away from the range of the electromagnet 32. Then the magnetic powder falls into the interior of the scraping box 27 and falls into the interior of the collection box 12 through the scraping groove 37 for collection.

[0041] Working principle of the invention:

[0042] The magnetic precipitate generated from wastewater treatment is placed inside the feed hopper 17, which transports it to the cutting box 22. Simultaneously, the cutting motor 21 drives the cutting wheel 36 to rotate via its output shaft. The cutting wheel 36 initially crushes the magnetic precipitate. The crushed mixture of dirt and magnetic powder falls into the crushing cylinder 15 through the connecting hole. The crushing motor 16 drives the rotating shaft 34 to rotate via its output shaft. The rotating shaft 34 drives several crushing blades 35 to rotate, which thoroughly crush the magnetic precipitate, thus separating the magnetic powder and pollutants. The control valve 33 is opened, and the discharge pipe 23 discharges the mixture of magnetic powder and pollutants. The discharged magnetic powder and pollutants fall onto the tilting plate 14. The electromagnet 32 ​​is energized to attract the magnetic powder. The vibration motor 31 drives the tilting plate 14 to vibrate, moving the pollutants into the collection box 13. The collection box 13 collects the separated pollutants.

[0043] Once sufficient magnetic powder is adsorbed onto the flip plate 14, the rotating motor 26 drives the rotating shaft 20 to rotate via its output shaft. The rotating shaft 20 then rotates the circular plates 3 and 7. The circular plate 3 causes the arc plate 4 to press against the rotating column 38, positioning the arc plate 4 between the limiting sphere and the gear 25, thus pressing the rotating column 38 to a horizontal position. The rotating column 38 then drives the flip plate 14 to rotate, maintaining its horizontal position. Subsequently, the circular plate 7 drives the arc-shaped rack 5 to rotate. The arc-shaped rack 5 meshes with the gear 25, causing the rotating column 38 to rotate. The rotating plate 14 is rotated, and then the arc rack 5 and gear 25 disengage, and the arc plate 4 and rotating column 38 disengage, so that the rotating plate 14 returns to the tilted state. The scraping motor 11 drives the threaded rod 30 to rotate through the output shaft. The threaded rod 30 drives the scraping box 27 to move. The scraping box 27 scrapes the area below the rotating plate 14, thereby scraping the magnetic powder below the rotating plate 14, so that the magnetic powder is scraped away from the range of the electromagnet 32. Then the magnetic powder falls into the interior of the scraping box 27 and falls into the interior of the collection box 12 through the scraping groove 37, so that the magnetic powder is collected and recycled.

[0044] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A high-efficiency magnetic separation and recovery device for wastewater treatment, comprising a base plate (8) and a switching assembly, characterized in that, The switching assembly includes several columns (6), all of which are fixed above the base plate (8). A mounting plate (9) is fixed above the columns (6). A circular plate (7) is rotatably mounted above the mounting plate (9). An arc-shaped rack (5) is fixed above the circular plate (7). A rotating shaft (20) is fixed above the circular plate (7). A circular plate (3) is fixed above the rotating shaft (20). An arc plate (4) is fixed below the circular plate (3). Both sides of the arc plate (4) are chamfered. A rotating motor (26) is fixed below the mounting plate (9). The output shaft of the rotating motor (26) is fixed on the rotating shaft (20). The upper part of the base plate (8) is... The base plate (8) is equipped with a flipping component, on which a separation component and a scraping component are fixed. A collection component is provided on the side of the base plate (8), and a crushing component is provided above the collection component. A cutting component is provided on the side of the crushing component. The flipping component includes a sleeve (39) and two upright plates (1). The two upright plates (1) are fixed above the base plate (8). Rotating columns (40) are fixed on both sides of the sleeve (39). The two rotating columns (40) are rotatably set on the upright plates (1) at corresponding positions. A rotating column (38) is rotatably set inside the sleeve (39). A limiting ball is fixed at one end of the rotating column (38). A gear (25) is fixed on the rotating column (38). The side of the plate (1) is provided with fixing blocks (19), and a limit post (2) is fixed between the two fixing blocks (19). The separation component includes a flip plate (14), which is fixed to the other end of the rotating post (38). The flip plate (14) has two installation chambers inside, and a vibration motor (31) and an electromagnet (32) are respectively installed inside the two installation chambers. Baffles (24) are fixed on both sides of the flip plate (14). The collection component includes a collection box (12), which is fixed to the side of the bottom plate (8). A collection box (13) is provided on the side of the collection box (12), and a U-shaped plate (29) is fixed above the collection box (12). The scraping assembly includes a first fixing plate (10) and a second fixing plate (18). The first fixing plate (10) is fixed between two upright plates (1), and the second fixing plate (18) is fixed above the collection box (12). Two limiting rods (28) are fixed between the first fixing plate (10) and the second fixing plate (18). A threaded rod (30) is rotatably provided between the first fixing plate (10) and the second fixing plate (18). A scraping box (27) is threadedly connected to the threaded rod (30). A scraping groove (37) is provided inside the scraping box (27). A scraping motor (11) is fixed to the side of the first fixing plate (10). The output shaft of the scraping motor (11) is connected to the threaded rod (30) through a coupling.

2. The high-efficiency magnetic separation and recovery device for wastewater treatment according to claim 1, characterized in that, The crushing assembly includes a crushing cylinder (15), which is fixed above a U-shaped plate (29). A rotating shaft (34) is rotatably installed inside the crushing cylinder (15). Several crushing blades (35) are fixed on the rotating shaft (34). A crushing motor (16) is fixed above the crushing cylinder (15). The output shaft of the crushing motor (16) is connected to the rotating shaft (34) via a coupling. A discharge pipe (23) is fixed below the crushing cylinder (15). A control valve (33) is installed above the discharge pipe (23).

3. The high-efficiency magnetic separation and recovery device for wastewater treatment according to claim 2, characterized in that, The cutting assembly includes a cutting box (22), which is fixed to the side of the crushing cylinder (15). A feeding hopper (17) is fixed to the side of the cutting box (22), and the feeding hopper (17) is connected to the cutting box (22). A cutting motor (21) is fixed to the side of the cutting box (22), and a cutting blade wheel (36) is fixed on the output shaft of the cutting motor (21). The cutting blade wheel (36) is located inside the cutting box (22). The bottom of the cutting box (22) is V-shaped, and a connecting hole is provided on the bottom of the cutting box (22) and the crushing cylinder (15).

Images