Wet finishing wastewater filtering and circulating device

Abstract

The present application relates to sewage treatment technical field, especially point to a kind of wet flatting wastewater filtering circulating device, including magnetic filter box, quartz sand filter box, fiber ball filter box, PP membrane filter and circulating water tank;Waste water is transported to the interior filtration of magnetic filter box, remove iron oxide powder in waste water;Then, waste water is transported to the interior filtration of quartz sand filter box, remove large particle impurity sludge in waste water, after that, waste water is transported to the interior filtration of fiber ball filter box, remove oil stain in waste water, finally, waste water is transported to the interior filtration of PP membrane filter, remove small particle impurity in waste water, obtain pure desalted water, and transported to the interior storage of circulating water tank;To realize the recycling of desalted water, reduce the consumption of desalted water, it is advantageous to reduce cost and increase efficiency and energy saving and emission reduction.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and in particular to a wet-leveling wastewater filtration and circulation device. Background Technology

[0002] The continuous annealing process of strip steel requires the use of a cold rolling leveling mill to improve the mechanical properties, shape, and surface quality of the strip steel. There are two working modes of the cold rolling leveling mill: dry leveling and wet leveling. Dry leveling means that no leveling agent is used when the strip steel passes through the leveling mill. Wet leveling means that demineralized water is added to the upper and lower surfaces of the strip steel when it passes through the cold rolling leveling mill.

[0003] The desalinated water used in wet leveling cleans the surface of the strip steel and improves the working conditions of the leveling machine. This prevents residual iron powder or other impurities from adhering to the work rolls, thus effectively solving problems such as roller marks and color difference defects in the leveling machine. It also extends the replacement cycle of the work rolls in the leveling machine. Therefore, wet leveling is used in most continuous annealing processes for strip steel.

[0004] A large amount of demineralized water is used in the wet leveling process of cold rolling leveling machines. The demineralized water contains impurities such as iron oxide powder and sludge. In order to reduce the consumption of demineralized water and to reduce costs, increase efficiency, and save energy and reduce emissions, the demineralized water is usually filtered to remove impurities before being recycled. When filtering iron oxide powder, magnetic attraction is used to remove iron oxide powder from the wastewater. However, the iron oxide powder will be adsorbed on the magnet and is difficult to clean and separate. It requires manual disassembly and cleaning at regular intervals, which greatly affects the filtration efficiency. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the fact that the demineralized water used in the prior art contains impurities such as iron oxide powder and oil sludge, which cannot be recycled and used, resulting in excessive consumption of demineralized water, which is contrary to the problems of cost reduction, efficiency improvement and energy conservation and emission reduction.

[0006] To solve the above-mentioned technical problems, the present invention provides a wet leveling wastewater filtration and circulation device, comprising: a magnetic filter box, wherein an inlet is provided at the top of the magnetic filter box; an outlet is provided on one side of the bottom of the magnetic filter box; the outlet at the top of the magnetic filter box is connected to a wastewater storage tank; a magnetic filter unit is provided inside the magnetic filter box, and the magnetic filter unit is used to filter and adsorb iron oxide powder in the wastewater; a rinsing unit is provided on the top surface inside the magnetic filter box, and the rinsing unit is used to rinse the magnetic filter unit; the magnetic filter unit includes: a mounting groove, wherein multiple sets of mounting grooves are opened through the magnetic filter box; the mounting grooves are opened at an angle, and the opening angle between adjacent sets of mounting grooves is horizontally symmetrical; a filter plate sleeve, wherein the filter plate sleeve is slidably installed inside the mounting groove, and both ends of the filter plate sleeve are bolted to the outer wall of the magnetic filter box; and a magnetic plate, wherein the magnetic plate is slidably installed inside the filter plate sleeve.

[0007] In one embodiment of the present invention, the rinsing unit includes: a horizontal tube, a pair of which are fixedly connected to both sides of the top surface of the inner cavity of the magnetic filter box; the middle part of the horizontal tube is connected to a clean water tank through a water pipe; a fan-shaped nozzle, a plurality of which are disposed at the bottom of the horizontal tube; and a collection drawer, which is slidably installed at the bottom of the magnetic filter box; the collection drawer is fastened to the outer wall of the magnetic filter box by bolts.

[0008] In one embodiment of the present invention, a horizontal pushing assembly is provided on the side of the magnetic filter box; the horizontal pushing assembly includes: a horizontal plate, wherein a plurality of horizontal plates are respectively bolted to the end of each group of magnetic plates; a vertical plate, wherein the vertical plate is bolted to the end of the horizontal plate; a hydraulic cylinder, wherein the hydraulic cylinder is fixedly connected to the side of the magnetic filter box; and the piston rod end of the hydraulic cylinder is bolted to the middle of the vertical plate.

[0009] In one embodiment of the present invention, the flat-push assembly further includes: a sliding sleeve, a pair of sliding sleeves fixed to the side of the magnetic filter box; the two sliding sleeves are respectively disposed on both sides of the hydraulic cylinder; a sliding rod, the sliding rod being slidably installed inside the sliding sleeve; and the end of the sliding rod near the vertical plate being bolted to the vertical plate.

[0010] In one embodiment of the present invention, a convex ring is fixedly connected to the outer ring of the end of the magnetic plate away from the horizontal plate; a plurality of annular grooves are uniformly formed on the inner wall of the filter plate sleeve; the convex ring slides in conjunction with the annular grooves.

[0011] In one embodiment of the present invention, a switching assembly is provided inside the magnetic filter box; the switching assembly is located between the magnetic filter box and the bottom filter plate sleeve; the switching assembly includes: a baffle bolted to one side of the inside of the magnetic filter box; the baffle is disposed at the bottom of the outlet of the magnetic filter box; a rotating plate rotatably mounted on the other side of the inside of the magnetic filter box; the side of the rotating plate near the middle of the magnetic filter box can slide in contact with one side of the middle of the baffle; and a transmission component disposed between the rotating plate and the bottom horizontal plate.

[0012] In one embodiment of the present invention, the transmission component includes: a connecting plate fixedly connected to the middle of the bottom surface of a bottom horizontal plate; an adjusting nut rotatably mounted on the bottom end of the connecting plate; a sliding groove formed in the middle of the bottom surface of a rotating plate; a slider slidably mounted inside the sliding groove and capable of rotating within the sliding groove; and a push rod, one end of which is fixedly connected to the slider; the push rod slidably penetrates the outer wall of the magnetic filter box; and the other end of the push rod is threadedly engaged with the adjusting nut.

[0013] In one embodiment of the present invention, the filtration and circulation device further includes: a quartz sand filter box, wherein an inlet and an outlet are provided on the bottom side of the quartz sand filter box; the outlet of the magnetic filter box is connected to the inlet of the quartz sand filter box via a water pump; the quartz sand filter box has multiple storage units inside, and the storage units are filled with quartz sand; a fiber ball filter box, wherein an inlet and an outlet are provided on the bottom side of the fiber ball filter box; the inlet of the fiber ball filter box is connected to the outlet of the quartz sand filter box via a water pump; the fiber ball filter box is filled with fiber balls; a PP membrane filter, wherein an inlet is provided on the top of the PP membrane filter; an outlet is provided on the bottom of the PP membrane filter; the inlet of the PP membrane filter is connected to the outlet of the fiber ball filter box via a water pump; the PP membrane filter is filled with a PP material filter element; and a circulating water tank, wherein an inlet and an outlet are respectively provided on both sides of the circulating water tank; the inlet of the circulating water tank is connected to the outlet of the PP membrane filter via a water pump.

[0014] In one embodiment of the present invention, the storage unit includes: a fixed slot frame, a plurality of fixed slot frames being uniformly fixed to the bottom of the inner cavity of the quartz sand filter box; a storage frame, the storage frame being slidably disposed inside the fixed slot frame; the storage frame being fixedly connected to the fixed slot frame by bolts; mesh openings being provided on both sides of the storage frame; and the quartz sand being disposed inside the storage frame.

[0015] In one embodiment of the present invention, a top cover is provided on the top surface of the storage frame; the top cover is fixedly connected to the fixing slot frame by bolts passing through the four corners of the storage frame.

[0016] The technical solution of the present invention has the following advantages compared with the prior art:

[0017] 1. In this invention, wastewater is transported to the internal filtration chamber of a magnetic filter box to remove iron oxide powder; then, the wastewater is transported to the internal filtration chamber of a quartz sand filter box to remove large particulate impurities and sludge; subsequently, the wastewater is transported to the internal filtration chamber of a fiber ball filter box to remove oil; finally, the wastewater is transported to the internal filtration chamber of a PP membrane filter to remove tiny particulate impurities, resulting in pure desalinated water, which is then transported to the internal filtration chamber of a circulating water tank for storage. This achieves the recycling of desalinated water, reduces the consumption of desalinated water, and is beneficial for cost reduction, efficiency improvement, energy conservation, and emission reduction.

[0018] 2. In this invention, when wastewater enters the magnetic filter box from the top, it is guided by multiple sets of filter plates, causing the wastewater to undergo multiple dispersions and guidances. This ensures that the wastewater fully contacts the outer wall of the filter plates inside the magnetic filter box. The iron oxide powder in the wastewater is attracted by the magnetic force of the magnetic plates, causing it to be adsorbed onto the surface of the filter plates, thus completing the filtration and removal of iron oxide powder from the wastewater. When the magnetic plates inside the filter plates are removed, the iron oxide powder detaches from the surface of the filter plates and falls to the bottom of the magnetic filter box, making it easier for staff to clean the iron oxide powder and ensuring the effectiveness of the wastewater filtration and iron oxide powder removal. Attached Figure Description

[0019] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0020] Figure 1 This is a perspective view of the present invention;

[0021] Figure 2 This is a perspective view of the magnetic filter box in this invention;

[0022] Figure 3 This is a diagram showing the internal structure of the magnetic filter box in this invention;

[0023] Figure 4 This is an exploded view of the magnetic filter box in this invention;

[0024] Figure 5 This is a perspective view of the horizontal pushing component in this invention;

[0025] Figure 6 This is a perspective view of the filter plate sleeve and magnetic plate in this invention;

[0026] Figure 7 This is a cross-sectional view of the filter plate sleeve and magnetic plate in this invention;

[0027] Figure 8 This is a perspective view of the switching component in this invention;

[0028] Figure 9 This is a perspective view of the horizontal tube in this invention;

[0029] Figure 10 This is a cross-sectional view of the switching component in this invention;

[0030] Figure 11 This is a diagram showing the internal structure of the quartz sand filter box in this invention;

[0031] Figure 12 This is an exploded view of the quartz sand filter box in this invention;

[0032] Explanation of reference numerals in the instruction manual: 1. Magnetic filter box; 2. Quartz sand filter box; 3. Fiber ball filter box; 4. PP membrane filter; 5. Circulating water tank; 6. Installation channel; 7. Filter plate sleeve; 8. Magnetic plate; 9. Horizontal plate; 10. Vertical plate; 11. Hydraulic cylinder; 12. Sliding sleeve; 13. Sliding rod; 14. Convex ring; 15. Ring groove; 16. Horizontal tube; 17. Fan-shaped nozzle; 18. Collection drawer; 19. Baffle; 20. Rotating plate; 21. Connecting plate; 22. Adjusting nut; 23. Sliding groove; 24. Sliding block; 25. Push rod; 26. Fixed slot frame; 27. Storage frame; 28. Top cover. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0034] Reference Figures 1 to 6 As shown, a wet leveling wastewater filtration and circulation device includes: a magnetic filter box 1, with an inlet at the top and an outlet on one side of the bottom; the outlet at the top of the magnetic filter box 1 is connected to a wastewater storage tank; a magnetic filter unit is installed inside the magnetic filter box 1, and the magnetic filter unit is used to filter and adsorb iron oxide powder in the wastewater; a rinsing unit is installed on the top surface inside the magnetic filter box 1, and the rinsing unit is used to rinse the magnetic filter unit; the magnetic filter unit includes: an installation channel 6, multiple sets of installation channels 6 are opened through the magnetic filter box 1; the installation channels 6 are opened at an angle, and the opening angle between adjacent sets of installation channels 6 is horizontally symmetrical; a filter plate sleeve 7, the filter plate sleeve 7 is slidably installed inside the installation channel 6, and both ends of the filter plate sleeve 7 are bolted to the outer wall of the magnetic filter box 1; and a magnetic plate 8, the magnetic plate 8 is slidably installed inside the filter plate sleeve 7.

[0035] During operation, the wet leveling wastewater is stored in a wastewater storage tank and then transported to the inside of the magnetic filter box 1 for filtration to remove iron oxide powder. When the wastewater enters the magnetic filter box 1 from the top, it is guided by multiple sets of filter plate sleeves 7, causing the wastewater to undergo multiple dispersions and guidances. This ensures that the wastewater fully contacts the outer wall of the filter plate sleeves 7 inside the magnetic filter box 1. The iron oxide powder in the wastewater is attracted by the magnetic force of the magnetic plate 8, causing the iron oxide powder to be adsorbed onto the surface of the filter plate sleeves 7, thereby completing the filtration and removal of iron oxide powder from the wastewater.

[0036] After wastewater has been filtered for a period of time, a large amount of iron oxide powder will be adsorbed on the surface of the filter plate sleeve 7, which will reduce the effect of removing iron oxide powder from the wastewater filtration. At this time, the magnetic plate 8 inside the filter plate sleeve 7 is pulled out. At the same time, the flushing unit sprays clean water downward to clean the surface of the filter plate sleeve 7, so that the iron oxide powder is detached from the surface of the filter plate sleeve 7 and falls to the bottom of the magnetic filter box 1. This makes it easier to quickly clean the iron oxide powder, reduces the difficulty of separating iron oxide powder, and reduces the time for cleaning and recovering iron oxide powder. In addition, it ensures the effect of removing iron oxide powder from the wastewater filtration.

[0037] Reference Figure 2 , Figure 3 , Figure 4 and Figure 9 As shown, the rinsing unit includes: a horizontal tube 16, a pair of which are fixedly connected to both sides of the top surface of the inner cavity of the magnetic filter box 1; the middle part of the horizontal tube 16 is connected to the clean water tank through a water pipe; a fan-shaped nozzle 17, a plurality of which are arranged at the bottom of the horizontal tube 16; and a collection drawer 18, which is slidably installed at the bottom of the magnetic filter box 1; the collection drawer 18 is fastened to the outer wall of the magnetic filter box 1 by bolts.

[0038] During operation, when the magnetic plate 8 is pulled out from inside the filter plate sleeve 7, the clean water in the clean water tank is transported to the inside of the horizontal pipe 16, and then diverted to multiple fan-shaped nozzles 17. The fan-shaped nozzles 17 spray a fan-shaped water curtain downwards, which washes the outer wall of the filter plate sleeve 7. The falling iron oxide powder is collected in the inside of the collection drawer 18, thereby further improving the cleanliness of the surface of the filter plate sleeve 7 and facilitating the recycling and cleaning work of the staff.

[0039] Reference Figures 2 to 5 As shown, a horizontal pushing assembly is provided on the side of the magnetic filter box 1; the horizontal pushing assembly includes: a horizontal plate 9, which is bolted to the end of each group of magnetic plates 8; a vertical plate 10, which is bolted to the end of the horizontal plate 9; and a hydraulic cylinder 11, which is fixed to the side of the magnetic filter box 1; the piston rod end of the hydraulic cylinder 11 is bolted to the middle of the vertical plate 10.

[0040] During operation, when it is necessary to remove the magnetic plate 8 from the inside of the filter plate sleeve 7, the hydraulic cylinder 11 pushes the vertical plate 10 to move away from the magnetic filter box 1, which in turn moves multiple horizontal plates 9 to remove multiple magnetic plates 8 from the inside of the filter plate sleeve 7. This facilitates the operation of the staff and improves their work efficiency.

[0041] Reference Figures 2 to 5As shown, the horizontal pushing assembly further includes: a sliding sleeve 12, a pair of sliding sleeves 12 fixed to the side of the magnetic filter box 1; the two sliding sleeves 12 are respectively arranged on both sides of the hydraulic cylinder 11; a sliding rod 13, the sliding rod 13 is slidably installed inside the sliding sleeve 12; one end of the sliding rod 13 near the vertical plate 10 is bolted to the vertical plate 10; by sliding the sliding rod 13 along the inside of the sliding sleeve 12, the stability of the movement of the vertical plate 10 and the horizontal plate 9 is improved, thereby improving the stability of the magnetic plate 8 sliding out of the filter plate sleeve 7.

[0042] Reference Figures 6 to 7 As shown, a convex ring 14 is fixedly connected to the outer ring of the end of the magnetic plate 8 away from the horizontal plate 9; a plurality of annular grooves 15 are evenly opened on the inner wall of the filter plate sleeve 7; the convex ring 14 and the annular groove 15 are slidably engaged; during operation, when the magnetic plate 8 is pulled out from the inside of the filter plate sleeve 7, the magnetic plate 8 drives the convex ring 14 to slide through the inside of the filter plate sleeve 7, and the convex ring 14 engages with the annular groove 15, so that the filter plate sleeve 7 generates continuous vibration, thereby improving the effect of iron oxide powder being removed from the surface of the filter plate sleeve 7.

[0043] Reference Figure 2 , Figure 3 , Figure 4 , Figure 8 and Figure 10 As shown, a switching assembly is provided inside the magnetic filter box 1; the switching assembly is located between the magnetic filter box 1 and the bottom filter plate sleeve 7; the switching assembly includes: a baffle 19, which is bolted to one side of the inside of the magnetic filter box 1; the baffle 19 is located at the bottom of the outlet of the magnetic filter box 1; a rotating plate 20, which is rotatably installed on the other side of the inside of the magnetic filter box 1; the side of the rotating plate 20 near the middle of the magnetic filter box 1 can slide in contact with one side of the middle of the baffle 19; and a transmission component, which is located between the rotating plate 20 and the bottom horizontal plate 9.

[0044] The transmission components include: a connecting plate 21, which is fixedly connected to the middle of the bottom surface of the bottom horizontal plate 9; an adjusting nut 22, which is rotatably mounted on the bottom end of the connecting plate 21; a sliding groove 23, which is formed in the middle of the bottom surface of the rotating plate 20; a slider 24, which is slidably mounted inside the sliding groove 23 and can rotate within the sliding groove 23; and a push rod 25, one end of which is fixedly connected to the slider 24; the push rod 25 slides through the outer wall of the magnetic filter box 1; and the other end of the push rod 25 is threadedly engaged with the adjusting nut 22.

[0045] During operation, when filtering wastewater, the hydraulic cylinder 11 is in a retracted state, which drives the vertical plate 10 and the horizontal plate 9 to approach the magnetic filter box 1, pushing the magnetic plate 8 to slide into the filter plate sleeve 7; at the same time, it drives the connecting plate 21 to approach the magnetic filter box 1, pushing the push rod 25 to slide into the magnetic filter box 1, pushing the slider 24 to slide along the slide groove 23, so that the rotating plate 20 rotates upward, and the rotating plate 20 presses against the baffle 19, cutting off the bottom of the magnetic filter box 1 and blocking the collection drawer 18, so that the wastewater that removes iron oxide powder enters the quartz sand filter box 2 along the rotating plate 20 and the baffle 19, preventing the wastewater from entering the collection drawer 18, thereby preventing the sedimentation of impurities and sludge in the wastewater in the collection drawer 18;

[0046] When the surface of the filter plate sleeve 7 needs to be cleaned, the hydraulic cylinder 11 pushes the vertical plate 10 away from the magnetic filter box 1, causing multiple horizontal plates 9 to move and pull multiple magnetic plates 8 out of the filter plate sleeve 7. At the same time, it moves the connecting plate 21 away from the magnetic filter box 1, causing the push rod 25 to slide from the inside of the magnetic filter box 1, causing the slider 24 to slide along the slide groove 23, so that the rotating plate 20 rotates downward, the rotating plate 20 separates from the baffle 19, and exposes the bottom of the magnetic filter box 1 and the collection drawer 18. At this time, the iron oxide powder that has fallen during cleaning falls into the collection drawer 18, which facilitates the recycling and cleaning work of the staff.

[0047] Reference Figure 1 As shown, the filtration and circulation device further includes: a quartz sand filter box 2, with an inlet and an outlet on its bottom side; the outlet of the magnetic filter box 1 is connected to the inlet of the quartz sand filter box 2 via a water pump; the quartz sand filter box 2 has multiple storage units inside, and each storage unit contains quartz sand; and a fiber ball filter box 3, with an inlet and an outlet on its bottom side; the inlet of the fiber ball filter box 3 is connected to the outlet of the quartz sand filter box 2 via a water pump. The system includes: a fiber ball filter box 3 containing fiber balls; a PP membrane filter 4 with an inlet at the top and an outlet at the bottom; the inlet of the PP membrane filter 4 being connected to the outlet of the fiber ball filter box 3 via a water pump; a PP filter element inside the PP membrane filter 4; and a circulating water tank 5 with an inlet and an outlet on both sides; the inlet of the circulating water tank 5 being connected to the outlet of the PP membrane filter 4 via a water pump.

[0048] During operation, wastewater is transported to the internal filtration chamber 1 of the magnetic filter box to remove iron oxide powder. Then, the wastewater is transported to the internal filtration chamber 2 of the quartz sand filter box to remove large particulate impurities and sludge. After that, the wastewater is transported to the internal filtration chamber 3 of the fiber ball filter box to remove oil. Finally, the wastewater is transported to the internal filtration chamber 4 of the PP membrane filter to remove small particulate impurities, resulting in pure desalinated water, which is then transported to the internal filtration chamber 5 for storage. This process achieves the recycling of desalinated water, reduces the consumption of desalinated water, and is beneficial for cost reduction, efficiency improvement, energy conservation, and emission reduction.

[0049] Reference Figure 1 , Figure 11 and Figure 12 As shown, the storage unit includes: a fixed slot frame 26, multiple fixed slot frames 26 are evenly fixed to the bottom of the inner cavity of the quartz sand filter box 2; a storage frame 27, the storage frame 27 is slidably disposed inside the fixed slot frame 26; the storage frame 27 and the fixed slot frame 26 are fixed together by bolts; both sides of the storage frame 27 are provided with mesh holes; the quartz sand is disposed inside the storage frame 27;

[0050] The top surface of the storage frame 27 is provided with a top cover 28; the top cover 28 is fixedly connected to the fixing slot frame 26 by bolts passing through the four corners of the storage frame 27.

[0051] During operation, wastewater is transported into the quartz sand filter box 2 and then filtered through the quartz sand in multiple storage frames 27, effectively removing large particles of impurities and sludge from the wastewater. The spacing between the multiple storage frames 27 allows the wastewater to collect before filtration, thus effectively improving the filtration effect. The top cover 28 on the top of the storage frames 27 effectively prevents the quartz sand from being pushed out of the storage frames 27 by the wastewater. The storage frames 27 also facilitate the replacement and cleaning of the quartz sand by the staff.

[0052] Working principle: When filtering wastewater, the hydraulic cylinder 11 is in a retracted state, which drives the vertical plate 10 and the horizontal plate 9 to approach the magnetic filter box 1, pushing the magnetic plate 8 to slide into the filter plate sleeve 7; at the same time, it drives the connecting plate 21 to approach the magnetic filter box 1, pushing the push rod 25 to slide into the magnetic filter box 1, pushing the slider 24 to slide along the slide groove 23, so that the rotating plate 20 rotates upward, and the rotating plate 20 presses against the baffle 19, cutting off the bottom of the magnetic filter box 1 and blocking the collection drawer 18;

[0053] The wet leveling wastewater is stored in a wastewater storage tank. The wastewater is then transported to the top of the magnetic filter box 1. As the wastewater enters the magnetic filter box 1 from the top, it is guided by multiple sets of filter plate sleeves 7, resulting in multiple dispersion and guidance processes. This ensures that the wastewater fully contacts the outer wall of the filter plate sleeves 7 inside the magnetic filter box 1. The iron oxide powder in the wastewater is attracted by the magnetic force of the magnetic plates 8, causing the iron oxide powder to be adsorbed onto the surface of the filter plate sleeves 7, thus removing the iron oxide powder from the wastewater. Then, the wastewater is transported to the quartz sand... Inside the filter box 2, the wastewater is filtered through quartz sand in multiple storage frames 27, effectively removing large particles of impurities and sludge. Then, the wastewater is transported to the fiber ball filter box 3 for further filtration to remove oil. Finally, the wastewater is transported to the PP membrane filter 4 for further filtration to remove fine particles of impurities, resulting in pure desalinated water, which is then stored in the circulating water tank 5. This process achieves the recycling of desalinated water, reduces its consumption, and is beneficial for cost reduction, efficiency improvement, energy conservation, and emission reduction.

[0054] After the wastewater has been filtered for a period of time, a large amount of iron oxide powder will be adsorbed on the surface of the filter plate sleeve 7, which will reduce the effect of removing iron oxide powder from the wastewater. At this time, the hydraulic cylinder 11 pushes the vertical plate 10 to move away from the magnetic filter box 1, which will drive multiple horizontal plates 9 to move and pull multiple magnetic plates 8 out of the inside of the filter plate sleeve 7.

[0055] Simultaneously, the connecting plate 21 is moved away from the magnetic filter box 1, causing the push rod 25 to slide from the inside of the magnetic filter box 1, and the slider 24 to slide along the slide groove 23, causing the rotating plate 20 to rotate downwards. The rotating plate 20 separates from the baffle 19, exposing the bottom of the magnetic filter box 1 and the collection drawer 18. The magnetic plate 8 drives the convex ring 14 to slide through the inside of the filter plate sleeve 7. The convex ring 14 cooperates with the ring groove 15, causing the filter plate sleeve 7 to vibrate continuously. The clean water in the clean water tank is transported to the inside of the horizontal pipe 16 and then diverted to multiple fan-shaped nozzles 17. The fan-shaped nozzles 17 spray a fan-shaped water curtain downwards, which washes the outer wall of the filter plate sleeve 7. The falling iron oxide powder gathers inside the collection drawer 18. This improves the cleanliness of the surface of the filter plate sleeve 7, ensures the effect of removing iron oxide powder from the wastewater, and facilitates the recycling and cleaning work of the staff.

[0056] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A wet leveling wastewater filtration and circulation device, characterized in that: include: A magnetic filter box (1) is provided with an inlet at the top and an outlet at one side of the bottom. The outlet at the top of the magnetic filter box (1) is connected to a wastewater storage tank. A magnetic filter unit is provided inside the magnetic filter box (1), and the magnetic filter unit is used to filter and adsorb iron oxide powder in the wastewater. A rinsing unit is provided on the top surface inside the magnetic filter box (1), and the rinsing unit is used to rinse the magnetic filter unit. The magnetic filtering unit includes: Installation slots (6), multiple sets of installation slots (6) are opened through the magnetic filter box (1); the installation slots (6) are opened at an angle, and the opening angle between two adjacent sets of installation slots (6) is horizontally symmetrical; The filter plate sleeve (7) is slidably installed inside the mounting slot (6), and both ends of the filter plate sleeve (7) are bolted to the outer wall of the magnetic filter box (1). Magnetic plate (8), which is slidably mounted inside the filter plate sleeve (7); the rinsing unit includes: A pair of horizontal tubes (16) are fixed to both sides of the top surface of the inner cavity of the magnetic filter box (1); the middle part of the horizontal tubes (16) is connected to the clean water tank through a water pipe. Fan-shaped nozzles (17), a plurality of said fan-shaped nozzles (17) are disposed at the bottom of the horizontal tube (16); A collection drawer (18) is slidably installed on the bottom of the magnetic filter box (1); the collection drawer (18) is fastened to the outer wall of the magnetic filter box (1) by bolts; A horizontal pushing assembly is provided on the side of the magnetic filter box (1); the horizontal pushing assembly includes: A horizontal plate (9), and multiple horizontal plates (9) are respectively bolted to the end of each group of magnetic plates (8); Vertical plate (10), the ends of which are bolted to horizontal plate (9); A hydraulic cylinder (11) is fixed to the side of the magnetic filter box (1); the piston rod end of the hydraulic cylinder (11) is bolted to the middle of the vertical plate (10); The pushing component also includes: Sliding sleeves (12), a pair of said sliding sleeves (12) are fixed to the side of the magnetic filter box (1); the two said sliding sleeves (12) are respectively arranged on both sides of the hydraulic cylinder (11); A slide rod (13) is slidably installed inside a sliding sleeve (12); one end of the slide rod (13) near the vertical plate (10) is bolted to the vertical plate (10); A switching assembly is provided inside the magnetic filter box (1); the switching assembly is located between the magnetic filter box (1) and the bottom filter plate sleeve (7); the switching assembly includes: A baffle (19) is bolted to one side of the inside of the magnetic filter box (1); the baffle (19) is located at the bottom of the outlet of the magnetic filter box (1); A rotating plate (20) is rotatably mounted on the other side of the interior of the magnetic filter box (1); the side of the rotating plate (20) near the middle of the magnetic filter box (1) can slide in contact with the side of the middle of the baffle (19); A transmission component is disposed between the rotating plate (20) and the bottom horizontal plate (9).

2. The wet leveling wastewater filtration and circulation device according to claim 1, characterized in that: The magnetic plate (8) has a convex ring (14) fixedly connected to the outer ring of the end away from the horizontal plate (9); the inner wall of the filter plate sleeve (7) is evenly provided with multiple annular grooves (15); the convex ring (14) and the annular grooves (15) are in sliding fit.

3. The wet leveling wastewater filtration and circulation device according to claim 1, characterized in that: The transmission component includes: A connecting plate (21) is fixed to the middle of the bottom surface of the bottom horizontal plate (9); Adjusting nut (22), which is rotatably mounted on the bottom end of connecting plate (21); The slide (23) is formed in the middle of the bottom surface of the rotating plate (20); A slider (24) is slidably mounted inside a groove (23) and is capable of rotating within the groove (23); Push rod (25), one end of which is fixedly connected to slider (24); push rod (25) slides through the outer wall of magnetic filter box (1); the other end of push rod (25) is threadedly engaged with adjusting nut (22).

4. The wet leveling wastewater filtration and circulation device according to claim 1, characterized in that: The filtration and circulation device further includes: Quartz sand filter box (2), the bottom side of the quartz sand filter box (2) is provided with an inlet and an outlet; the outlet of the magnetic filter box (1) is connected to the inlet of the quartz sand filter box (2) through a water pump; the quartz sand filter box (2) is provided with multiple storage units inside, and the storage units are provided with quartz sand. The fiber ball filter box (3) has an inlet and an outlet on its bottom side; the inlet of the fiber ball filter box (3) is connected to the outlet of the quartz sand filter box (2) by a water pump; the fiber ball filter box (3) is equipped with fiber balls inside. A PP membrane filter (4) is provided with an inlet at the top and an outlet at the bottom. The inlet of the PP membrane filter (4) is connected to the outlet of the fiber ball filter box (3) via a water pump. The PP membrane filter (4) is provided with a PP material filter element inside. Circulating water tank (5); the circulating water tank (5) is provided with an inlet and an outlet on both sides respectively; the inlet of the circulating water tank (5) is connected to the outlet of the PP membrane filter (4) through a water pump.

5. The wet leveling wastewater filtration and circulation device according to claim 4, characterized in that: The storage unit includes: Fixed slots (26), a plurality of fixed slots (26) are evenly fixed to the bottom of the inner cavity of the quartz sand filter box (2); Storage frame (27) is slidably disposed inside the fixed slot frame (26); the storage frame (27) and the fixed slot frame (26) are fixedly connected by bolts; mesh holes are provided on both sides of the storage frame (27); the quartz sand is disposed inside the storage frame (27).

6. The wet leveling wastewater filtration and circulation device according to claim 5, characterized in that: The storage frame (27) is provided with a top cover (28); the top cover (28) is fixed to the fixed slot frame (26) by bolts passing through the four corners of the storage frame (27).

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