Magnetic coagulation sewage treatment device with self-cleaning function

Abstract

The invention discloses a magnetic coagulation sewage treatment device with a self-cleaning function, and relates to the technical field of sewage treatment.The magnetic coagulation sewage treatment device comprises a treatment chamber and a filtering chamber, the treatment chamber is fixedly arranged above the filtering chamber, and the treatment chamber and the filtering chamber communicate with each other; a stirring shaft for stirring sewage and chemicals is rotationally arranged in the treatment chamber, and a plurality of stirring rods are fixedly arranged on the outer surface of the stirring shaft. According to the magnetic coagulation sewage treatment device with the self-cleaning function, the filter plate is synchronously driven to move up and down when the stirring shaft rotates, so that magnetic flocs can be prevented from being locally accumulated on the surface of the filter plate; meanwhile, the driving assembly and the transmission structure drive the scraping plate to horizontally reciprocate, and impurities attached to the surface of the filter plate can be thoroughly scraped off. Double cleaning actions are matched with each other, so that the filter plate is effectively prevented from being blocked, shutdown for manual cleaning is not needed, the continuous and stable filtering efficiency of the device is ensured, and the maintenance cost and the labor intensity are reduced.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a magnetic coagulation wastewater treatment device with self-cleaning function. Background Technology

[0002] In the field of wastewater treatment, magnetic coagulation technology is widely used in the purification and treatment of various types of wastewater due to its advantages such as fast reaction speed, high sedimentation efficiency, and low sludge moisture content. The core principle of magnetic coagulation wastewater treatment equipment is to add magnetic powder, coagulant, and flocculant to the wastewater, causing pollutants in the wastewater to combine with the magnetic powder to form magnetic flocs. Then, the magnetic flocs are separated from the wastewater by a solid-liquid separation device, thereby achieving wastewater purification.

[0003] However, existing magnetic coagulation wastewater treatment devices still have many shortcomings in practical applications: Firstly, most filter components are fixed, and magnetic flocs easily accumulate and clog the surface of the filter media during the filtration process, requiring frequent shutdowns for manual cleaning. This not only increases the labor intensity of operators but also seriously affects the efficiency of wastewater treatment. Secondly, existing self-cleaning structures mostly use a single cleaning method, such as scraping with a scraper or relying solely on the vibration of the filter medium. The cleaning effect is limited, and it is difficult to completely remove stubborn impurities attached to the surface of the filter medium. After long-term use, the filtration efficiency will still decrease.

[0004] Therefore, the present invention provides a magnetic coagulation wastewater treatment device with self-cleaning function to solve the above-mentioned problems. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a magnetic coagulation wastewater treatment device with self-cleaning function, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a magnetic coagulation wastewater treatment device with self-cleaning function, comprising a treatment chamber and a filtration chamber. The treatment chamber is fixedly disposed above the filtration chamber and the two are interconnected. A stirring shaft for stirring wastewater and chemicals is rotatably disposed inside the treatment chamber. Several stirring rods are fixedly disposed on the outer surface of the stirring shaft. A filter plate for filtering wastewater is disposed inside the filtration chamber. Scrapers for cleaning impurities on the surface of the filter plate are symmetrically disposed inside the filtration chamber. A drive assembly for controlling the rotation of the stirring shaft and the horizontal movement of the scrapers is disposed on the top of the treatment chamber. A lifting mechanism for adjusting the height of the drive assembly is disposed on the top of the treatment chamber. During rotation, the stirring shaft synchronously drives the filter plate to move up and down reciprocally.

[0007] Preferably, a sealing door is symmetrically rotated on the outside of the filter chamber, and the highest position of the filter plate is flush with the bottom of the sealing door.

[0008] Preferably, the lifting mechanism includes an electric push rod fixedly mounted on the top of the processing chamber, and the output end of the electric push rod is fixedly mounted with a mounting bracket.

[0009] Preferably, the drive assembly includes a drive motor that is fixedly mounted on the mounting frame. The output shaft of the drive motor is fixedly mounted with a drive rod via a coupling. A transmission rod is fixedly mounted at the bottom end of the drive rod. The top end of the stirring shaft extends to the outside of the processing chamber, and multiple protrusions are formed on the outer side of the top end of the stirring shaft. The transmission rod has a through-type internal design, and its inner wall has grooves that match the protrusions.

[0010] Preferably, the top of the processing chamber is rotatably provided with a connecting column sleeved on the outer surface of the stirring shaft. The top of the connecting column is provided with several slots. The bottom of the transmission rod is symmetrically fixed with insert rods. The bottom end of the insert rod can be slidably inserted into the inside of the slot. When the insert rod is inserted into the slot, the scraper is driven to move in the horizontal direction through the transmission structure.

[0011] Preferably, the transmission structure includes a transmission gear fixedly mounted on the outer surface of the connecting column, a transmission column symmetrically and rotatably mounted on the top of the processing chamber, a driven gear fixedly mounted on the outer surface of the transmission column, and the driven gear meshing with the transmission gear, a fixing block symmetrically and fixedly mounted on the outer sides of both the processing chamber and the filter chamber, a connecting shaft rotatably mounted through the fixing block, and the top end of the connecting shaft being connected to the outer surface of the transmission column via a belt drive.

[0012] Preferably, a connecting gear is fixedly provided at the bottom end of the connecting shaft, and a connecting toothed plate is fixedly provided on the side of each of the two scrapers that are far apart from each other. One end of the connecting toothed plate passes through and extends to the outside of the filter chamber, and the connecting toothed plate is meshed with the connecting gear.

[0013] Preferably, a rotating shaft is fixedly installed at the bottom of the stirring shaft, and the bottom end of the rotating shaft passes through the inner bottom wall of the processing chamber and the inner top wall of the filter chamber in sequence and is rotatably installed with their inner surfaces. The outer surface of the rotating shaft is provided with external threads, and an extension rod is fixedly installed at the top of the filter plate. The extension rod is connected to the external threads on the surface of the rotating shaft.

[0014] Preferably, a support column is slidably disposed through the filter chamber, the support column is disposed below the sealing door, a stop is fixedly disposed on the outer surface of the support column, and a connecting spring is fixedly disposed between the stop and the outer surface of the filter chamber.

[0015] Beneficial effects: This invention provides a magnetic coagulation wastewater treatment device with a self-cleaning function. Compared with the prior art, it has the following advantages: (1) The magnetic coagulation wastewater treatment device with self-cleaning function drives the filter plate to move up and down synchronously when the stirring shaft rotates, which can prevent magnetic flocs from accumulating locally on the surface of the filter plate; at the same time, the drive component and transmission structure drive the scraper to move horizontally back and forth, which can thoroughly scrape off the impurities attached to the surface of the filter plate. The dual cleaning actions work together to effectively prevent the filter plate from clogging, eliminating the need for manual cleaning during shutdown, ensuring the continuous and stable filtration efficiency of the device, and reducing maintenance costs and labor intensity.

[0016] (2) This magnetic coagulation wastewater treatment device with self-cleaning function drives the stirring shaft through the cooperation of protrusions and grooves, and selectively switches the scraper drive through the insertion and cooperation of the rod and slot. Then, with the help of gear, belt and other transmission structures, the single power source is converted into the power for multiple actions such as stirring, filter plate lifting and scraping cleaning, which simplifies the equipment structure and reduces manufacturing costs. At the same time, the precise cooperation between the various transmission components and the strong coordination of actions reduce the number of failure points and improve the stability and reliability of the equipment operation.

[0017] (3) The magnetic coagulation sewage treatment device with self-cleaning function is equipped with a sealed door on the outside of the filter chamber that is flush with the highest moving position of the filter plate. After opening the sealed door, the cleaned impurities can be directly removed without disassembling the equipment, making it easy to operate. The lifting mechanism can adjust the height of the drive component through an electric push rod, and can flexibly switch the working and stopping states of the scraper to adapt to different sewage treatment conditions. The combination of the support column and the connecting spring can effectively support and limit the filter plate, prevent the filter plate from deforming and being damaged, and extend the service life of the filter plate. At the same time, the support column can be automatically reset through elastic force, further improving the practicality of the equipment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the external structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the present invention; Figure 3 This is a schematic diagram of the filter plate installation according to the present invention; Figure 4 This is a schematic diagram of the lifting mechanism structure of the present invention; Figure 5 This is a schematic diagram of the drive component structure of the present invention; Figure 6 This is a schematic diagram of the transmission structure of the present invention; Figure 7 For the present invention Figure 6 Enlarged diagram of point A in the diagram; Figure 8 This is a schematic diagram of the internal structure of the filter chamber of the present invention.

[0019] In the diagram: 1-Processing chamber, 2-Filtering chamber, 3-Stirring shaft, 301-Stirring rod, 4-Filter plate, 5-Scraper, 6-Drive assembly, 601-Drive motor, 602-Drive rod, 603-Transmission rod, 604-Protrusion, 605-Groove, 606-Connecting column, 607-Slot, 608-Insertion rod, 609-Transmission structure, 6091-Transmission gear, 6092-Transmission column, 6093-Driven gear, 6094-Fixing block, 6095-Connecting shaft, 6096-Belt, 6097-Connecting gear, 6098-Connecting toothed plate, 6010-Rotating shaft, 6011-External thread, 6012-Extension rod, 7-Lifting mechanism, 701-Electric push rod, 702-Mounting bracket, 8-Sealing door, 9-Support column, 901-Stop block, 902-Connecting spring. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figures 1-8This invention provides a technical solution: a magnetic coagulation wastewater treatment device with self-cleaning function, comprising a treatment chamber 1 and a filter chamber 2. A sealing door 8 is symmetrically and rotatably mounted on the outside of the filter chamber 2 via hinges. The bottom of the sealing door 8 is rotatably connected to the filter chamber 2, and a sealing strip is installed on the sealing surface of the sealing door 8 to ensure sealing when closed. The treatment chamber 1 is fixedly mounted above the filter chamber 2 by welding, and the bottom of the treatment chamber 1 is connected to the top of the filter chamber 2, realizing mutual communication between their internal spaces. Inside the treatment chamber 1, a stirring shaft 3 is rotatably mounted via bearings to stir the wastewater and chemicals. The axis of the stirring shaft 3 coincides with the central axis of the treatment chamber 1 to ensure uniform stirring. Several stirring rods 301 are fixedly mounted on the outer surface of the stirring shaft 3 by welding. The stirring rods 301 are evenly distributed along the axial direction of the stirring shaft 3, and adjacent stirring rods 301 are staggered to expand the stirring range, avoid dead zones, and improve the mixing effect of wastewater and chemicals. The filter chamber 2 is equipped with filter plates 4 for filtering wastewater. The size of the filter plates 4 is adapted to the internal cross-section of the filter chamber 2. They are made of high-strength filter media and can effectively intercept magnetic flocs and solid impurities. The highest position of the filter plates 4 is flush with the bottom of the sealing door 8. When the sealing door 8 is opened, the impurities cleaned from the surface of the filter plates 4 can be directly removed from the sealing door 8, which also facilitates maintenance of the filter chamber 2. The filter chamber 2 is symmetrically equipped with scrapers 5 for cleaning impurities from the surface of the filter plates 4. When the filter plates 4 are in the highest position, the bottom of the scraper 5 is in close contact with the surface of the filter plates 4. The scraper 5 is made of wear-resistant rubber, which ensures cleaning effect and avoids scratching the filter plates 4.

[0022] The top of the processing chamber 1 is equipped with a drive assembly 6 for controlling the rotation of the stirring shaft 3 and the horizontal movement of the scraper 5, providing power for the core operation of the device. The top of the processing chamber 1 is also equipped with a lifting mechanism 7 for adjusting the height of the drive assembly 6, allowing for flexible switching of the scraper 5's operating state. During rotation, the stirring shaft 3 synchronously drives the filter plate 4 to move up and down reciprocally via a transmission structure 609, preventing impurities from accumulating on the surface of the filter plate 4 and thus improving the filtration and cleaning effect.

[0023] The lifting mechanism 7 includes an electric push rod 701 that is fixed to the top of the processing chamber 1 by bolts. The electric push rod 701 is a model with precise extension stroke and stable thrust. The output end of the electric push rod 701 is fixed to a mounting bracket 702 by bolts. The mounting bracket 702 is a frame structure used to support and fix the drive assembly 6. The overall lifting of the drive assembly 6 is achieved by the extension and retraction of the electric push rod 701.

[0024] The drive assembly 6 includes a drive motor 601 that passes through and is fixed to the mounting bracket 702 by bolts. The drive motor 601 is a servo motor, which has the characteristics of stable speed and large output torque. The output shaft of the drive motor 601 is fixed to a drive rod 602 by a coupling. The drive rod 602 is coaxial with the output shaft of the drive motor 601. The bottom end of the drive rod 602 is fixed to a transmission rod 603 by welding. The transmission rod 603 is coaxial with the drive rod 602. The top end of the stirring shaft 3 extends to the outside of the processing chamber 1, and multiple protrusions 604 are formed on the outer side of the top end of the stirring shaft 3 along the circumferential direction. The protrusions 604 are evenly distributed. The interior of the transmission rod 603 is designed to be through, and its inner wall is provided with a groove 605 that matches the protrusions 604. The protrusions 604 can slide in the groove 605 to realize the torque transmission between the transmission rod 603 and the stirring shaft 3, while allowing the two to move relative to each other along the axial direction.

[0025] To explain, the drive rod 602 has a hollow interior, and the diameter of the drive rod 602 is greater than the sum of the diameter of the stirring shaft 3 and the diameter of the protrusion 604, so that when the drive rod 602 moves downward, the protrusion 604 can move completely into the interior of the drive rod 602.

[0026] A connecting column 606 is rotatably mounted on the top of the processing chamber 1 via a bearing and sleeved on the outer surface of the stirring shaft 3. The connecting column 606 is coaxial with the stirring shaft 3 and does not interfere with each other. Several slots 607 are evenly distributed around the top of the connecting column 606. Insert rods 608 are symmetrically fixed around the bottom of the transmission rod 603 by welding. The number and position of the insert rods 608 are matched with those of the slots 607. The bottom end of the insert rod 608 can be slidably inserted into the interior of the slot 607. When the insert rod 608 is inserted into the slot 607, the transmission rod 603 can drive the connecting column 606 to rotate synchronously, thereby driving the scraper 5 to move horizontally through the transmission structure 609. When the insert rod 608 is disengaged from the slot 607, the scraper 5 stops moving, and only the stirring shaft 3 continues to rotate.

[0027] The transmission structure 609 includes a transmission gear 6091 fixedly mounted on the outer surface of the connecting column 606 by welding, the transmission gear 6091 being coaxial with the connecting column 606; a transmission column 6092 is symmetrically mounted on the top of the treatment chamber 1 via bearings, the axis of the transmission column 6092 being parallel to the axis of the connecting column 606; a driven gear 6093 is fixedly mounted on the outer surface of the transmission column 6092 by welding, and the driven gear 6093 meshes with the transmission gear 6091 to realize the conversion and transmission of power direction; fixing blocks 6094 are symmetrically fixed on the outer sides of both the treatment chamber 1 and the filter chamber 2 by bolts, the fixing blocks 6094 having an L-shaped structure; a connecting shaft 6095 is mounted through the fixing block 6094 and rotatably mounted via bearings, the connecting shaft 6095 being vertically mounted; pulleys are fixedly sleeved on the top of the connecting shaft 6095 and the outer surface of the transmission column 6092, and the two are connected by a belt 6096 to realize long-distance power transmission.

[0028] A connecting gear 6097 is fixedly welded to the bottom end of the connecting shaft 6095, and the connecting gear 6097 is coaxial with the connecting shaft 6095. A connecting toothed plate 6098 is fixedly bolted to the side of each of the two scrapers 5 that are far apart from each other, and the connecting toothed plate 6098 is horizontally arranged. One end of the connecting toothed plate 6098 passes through and extends to the outside of the filter chamber 2. The side wall of the filter chamber 2 is provided with a strip groove for the connecting toothed plate 6098 to slide, and the connecting toothed plate 6098 is meshed with the connecting gear 6097, so as to convert the rotational power of the connecting shaft 6095 into the horizontal linear motion of the connecting toothed plate 6098, thereby driving the scraper 5 to move.

[0029] A rotating shaft 6010 is fixedly welded to the bottom of the stirring shaft 3. The rotating shaft 6010 is coaxial with the stirring shaft 3. The bottom end of the rotating shaft 6010 passes through the inner bottom wall of the treatment chamber 1 and the inner top wall of the filter chamber 2 in sequence, and is rotatably connected to the two walls through bearings to ensure rotational stability. The outer surface of the rotating shaft 6010 is provided with an external thread 6011. The external thread 6011 is a bidirectional thread, which allows the extension rod 6012 to automatically reverse direction when it moves to the end of the external thread 6011. An extension rod 6012 is fixedly bolted to the top of the filter plate 4. The extension rod 6012 has an internal thread hole that matches the external thread 6011. The extension rod 6012 is threadedly connected to the external thread 6011 on the surface of the rotating shaft 6010. When the rotating shaft 6010 rotates, it drives the filter plate 4 to move up and down reciprocally through the threaded transmission.

[0030] A support column 9 is slidably installed through the filter chamber 2. The support column 9 is horizontally positioned and made of high-strength steel. The support column 9 is located below the sealing door 8. When the filter plate 4 descends to its highest position, it contacts the bottom of the scraper 5. The support column 9 provides auxiliary support for the filter plate 4 and limits its movement, while preventing damage to the filter plate 4 due to excessive force. A stop block 901 is fixedly welded to the outer surface of the support column 9. The stop block 901 is circular or square. A connecting spring 902 is fixed between the stop block 901 and the outer surface of the filter chamber 2. The connecting spring 902 is sleeved on the outside of the support column 9. The elastic force of the connecting spring 902 facilitates the reset of the support column 9.

[0031] To explain, in the initial state, when the connecting spring 902 is at its original length, the end of the support column 9 near the filter plate 4 is completely located inside the side wall of the filter chamber 2, so that it will not affect the up and down movement of the filter plate 4. When cleaning the surface of the filter plate 4, when the filter plate 4 is at its highest point and in contact with the bottom of the scraper 5, the power is cut off. At this time, the sealing door 8 is opened, so that the sealing door 8 rotates with its bottom as the center until the outer surface of the sealing door 8 contacts the end of the support column 9, and overcomes the elastic force of the connecting spring 902, squeezing the support column 9, so that the support column 9 moves into the interior of the filter chamber 2 and contacts the bottom of the filter plate 4, thus limiting the position of the filter plate 4.

[0032] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0033] During operation, check whether the sealing door 8 is closed properly, ensuring that the sealing strip is tightly fitted to the filter chamber 2 to prevent sewage leakage; adjust the initial position of the drive assembly 6 through the lifting mechanism 7. At this time, the insertion rod 608 at the bottom of the transmission rod 603 and the slot 607 at the top of the connecting column 606 remain separated, and the scraper 5 is in a stationary state; check whether the support column 9 is reset, the connecting spring 902 is at its original length, and the end of the support column 9 near the filter plate 4 is completely located inside the side wall of the filter chamber 2, without affecting the movement of the filter plate 4; inject the sewage to be treated into the treatment chamber 1, and add magnetic coagulant and magnetic powder in proportion, ready to start the treatment program; The drive motor 601 in the drive assembly 6 is started. The output shaft of the drive motor 601 drives the drive rod 602 and the transmission rod 603 to rotate synchronously through the coupling. Since the groove 605 on the inner wall of the transmission rod 603 slides and engages with the protrusion 604 at the top of the stirring shaft 3, the torque is transmitted to the stirring shaft 3 through the protrusion 604 and the groove 605, which drives the stirring shaft 3 and the stirring rod 301 on the outer surface to rotate in the treatment chamber 1. The stirring rods 301 are arranged in an alternating pattern, which stirs the sewage, chemicals and magnetic powder in all directions without dead angles, so as to promote the full reaction of pollutants in the sewage with magnetic powder and chemicals, and quickly form a dense magnetic floc, which is ready for subsequent filtration and separation. While the stirring shaft 3 rotates, the rotating shaft 6010 at its bottom rotates synchronously. Since the external thread 6011 on the surface of the rotating shaft 6010 is threadedly connected to the internal thread hole of the extension rod 6012 at the top of the filter plate 4, the rotational power is converted into linear motion, driving the filter plate 4 to move up and down reciprocally in the filter chamber 2. The wastewater that has completed the coagulation reaction in the treatment chamber 1 flows into the filter chamber 2 through the connecting channel between the treatment chamber 1 and the filter chamber 2. Under the interception effect of the filter plate 4, magnetic flocs and other solid impurities are left on the surface of the filter plate 4. The purified water passes through the filter plate 4 and is discharged from the drain at the bottom of the filter chamber 2, realizing solid-liquid separation. The up and down reciprocating movement of the filter plate 4 can avoid the local accumulation of impurities, ensure the smooth flow of the filtration channel, and improve the filtration efficiency. After the device has been running for a period of time, a lot of impurities accumulate on the surface of the filter plate 4, and the self-cleaning function needs to be activated: the electric push rod 701 of the control lifting mechanism 7 drives the mounting frame 702 and the drive assembly 6 to descend as a whole until the insertion rod 608 at the bottom of the transmission rod 603 is inserted into the slot 607 at the top of the connecting column 606. At this time, the torque of the drive motor 601 is synchronously transmitted to the connecting column 606 through the transmission rod 603, which drives the connecting column 606 and the transmission gear 6091 on the outer surface to rotate. The transmission gear 6091 meshes with the driven gear 6093 at the top of the treatment chamber 1, driving the driven gear 6093 and the transmission column 6092 to rotate. The transmission column 6092 is connected to the connecting shaft 6095 on the fixed block 6094 through the belt 6096, which drives the connecting shaft 6095 and the connecting gear 6097 at the bottom to rotate. The connecting gear 6097 meshes with the connecting toothed plate 6098 on one side of the scraper 5, converting the rotational power into horizontal linear motion, driving the two scrapers 5 to move back and forth along the surface of the filter plate 4 in opposite or opposite directions.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A magnetic coagulation wastewater treatment device with self-cleaning function, comprising a treatment chamber (1) and a filtration chamber (2), wherein the treatment chamber (1) is fixedly disposed above the filtration chamber (2) and the two are interconnected, characterized in that: The treatment chamber (1) is equipped with a stirring shaft (3) for stirring wastewater and chemicals. Several stirring rods (301) are fixedly installed on the outer surface of the stirring shaft (3). The filter chamber (2) is equipped with a filter plate (4) for filtering wastewater. The filter chamber (2) is symmetrically equipped with scrapers (5) for cleaning impurities on the surface of the filter plate (4). The top of the treatment chamber (1) is equipped with a drive assembly (6) for controlling the rotation of the stirring shaft (3) and the horizontal movement of the scraper (5). The top of the treatment chamber (1) is equipped with a lifting mechanism (7) for adjusting the height of the drive assembly (6). During the rotation of the stirring shaft (3), the filter plate (4) is driven to move up and down repeatedly.

2. The magnetic coagulation wastewater treatment device with self-cleaning function according to claim 1, characterized in that: A sealing door (8) is symmetrically rotated on the outside of the filter chamber (2), and the highest position of the filter plate (4) is flush with the bottom of the sealing door (8).

3. The magnetic coagulation wastewater treatment device with self-cleaning function according to claim 1, characterized in that: The lifting mechanism (7) includes an electric push rod (701) fixedly installed on the top of the processing chamber (1), and the output end of the electric push rod (701) is fixedly provided with a mounting bracket (702).

4. A magnetic coagulation wastewater treatment device with self-cleaning function according to claim 3, characterized in that: The drive assembly (6) includes a drive motor (601) that is fixedly mounted on the mounting bracket (702). The output shaft of the drive motor (601) is fixedly mounted with a drive rod (602) via a coupling. A transmission rod (603) is fixedly mounted at the bottom end of the drive rod (602). The top end of the stirring shaft (3) extends to the outside of the processing chamber (1), and the outer side of the top end of the stirring shaft (3) extends outward to form multiple protrusions (604). The transmission rod (603) has a through-hole design inside and a groove (605) that matches the protrusions (604) is opened on its inner wall.

5. A magnetic coagulation wastewater treatment device with self-cleaning function according to claim 1, characterized in that: The top of the processing chamber (1) is rotatably provided with a connecting column (606) sleeved on the outer surface of the stirring shaft (3). The top of the connecting column (606) is provided with several slots (607). The bottom of the transmission rod (603) is symmetrically fixed with insert rods (608). The bottom end of the insert rod (608) can be slidably inserted into the inside of the slot (607). When the insert rod (608) is inserted into the slot (607), the scraper (5) is driven to move in the horizontal direction through the transmission structure (609).

6. A magnetic coagulation wastewater treatment device with self-cleaning function according to claim 1, characterized in that: The transmission structure (609) includes a transmission gear (6091) fixedly mounted on the outer surface of the connecting column (606). A transmission column (6092) is symmetrically rotatably mounted on the top of the processing chamber (1). A driven gear (6093) is fixedly mounted on the outer surface of the transmission column (6092), and the driven gear (6093) meshes with the transmission gear (6091). Fixing blocks (6094) are symmetrically fixedly mounted on the outer sides of both the processing chamber (1) and the filter chamber (2). A connecting shaft (6095) is rotatably mounted through the fixing block (6094). The top end of the connecting shaft (6095) is connected to the outer surface of the transmission column (6092) via a belt (6096).

7. A magnetic coagulation wastewater treatment device with self-cleaning function according to claim 6, characterized in that: A connecting gear (6097) is fixedly provided at the bottom end of the connecting shaft (6095), and a connecting toothed plate (6098) is fixedly provided on the side of the two scrapers (5) that are far apart from each other. One end of the connecting toothed plate (6098) passes through and extends to the outside of the filter chamber (2), and the connecting toothed plate (6098) meshes with the connecting gear (6097).

8. A magnetic coagulation wastewater treatment device with self-cleaning function according to claim 1, characterized in that: A rotating shaft (6010) is fixedly installed at the bottom of the stirring shaft (3). The bottom end of the rotating shaft (6010) passes through the inner bottom wall of the processing chamber (1) and the inner top wall of the filter chamber (2) and rotates with its inner surface. An external thread (6011) is provided on the outer surface of the rotating shaft (6010). An extension rod (6012) is fixedly installed on the top of the filter plate (4). The extension rod (6012) is connected to the external thread (6011) on the surface of the rotating shaft (6010).

9. A magnetic coagulation wastewater treatment device with self-cleaning function according to claim 1, characterized in that: A support column (9) is slidably disposed through the filter chamber (2). The support column (9) is located below the sealing door (8). A stop block (901) is fixedly disposed on the outer surface of the support column (9). A connecting spring (902) is fixedly disposed between the stop block (901) and the outer surface of the filter chamber (2).

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