Sewage filtering device for sewage treatment

Abstract

The utility model provides a sewage filtering device for sewage treatment, which relates to the technical field of sewage filtering and comprises a filtering box, a plurality of supporting legs are fixedly mounted on the bottom surface of the filtering box, a control terminal is fixedly arranged on the surface of one side of the filtering box, and a feeding port is connected to the top surface of the filtering box in a penetrating manner. The surface of the bottom end of the filter box is connected with a drainage pipe in a penetrating mode, a main filter assembly is arranged on the surface of one side of the filter box, moving assemblies are arranged at the two ends of the surface of one side of the filter box, an auxiliary filter assembly is arranged on the surface of the other side of the filter box, and a cleaning assembly is arranged on the surface of the inner wall of the top of the filter box. The main filter assembly comprises a plate groove, and the plate groove is formed in the surface of one side of the filter box. According to the sewage filtering device for sewage treatment, filtered impurities can be discharged through movement of the guide frame, the surfaces of the auxiliary filtering plates can be cleaned in real time through the banister brushes, the impurities are prevented from being accumulated on the surfaces of the filtering plates, and the filtering efficiency of the sewage filtering device for sewage treatment is improved.

Description

Technical Field

[0001] This utility model relates to the field of wastewater filtration technology, and in particular to a wastewater filtration device for wastewater treatment. Background Technology

[0002] During environmental engineering construction, some wastewater is generated. This wastewater needs to be treated by a wastewater filtration device before it can be discharged. A wastewater filtration device is an important environmental protection equipment, mainly used to filter and purify wastewater during the wastewater treatment process to achieve the purpose of purifying water quality and eliminating pollution. The core function of a wastewater filtration device is to filter and purify water quality. It uses physical methods to filter out impurities such as suspended solids, particulate matter, and oil from wastewater, thus significantly improving water quality. The water quality after treatment by a wastewater filtration device can meet certain discharge standards, and the impact on the environment is effectively controlled. The treatment capacity of a wastewater filtration device is not limited to improving water quality and eliminating pollution; it can also improve the quality of the ecological environment. The treated wastewater can be used for farmland irrigation, landscaping, and other purposes.

[0003] However, in the existing technology, the filter plates of sewage filtration devices for sewage treatment are mostly fixed inside the filter box, which makes it inconvenient to clean the filtered impurities. As a result, the filtered impurities accumulate on the surface of the filter plates, clogging them and greatly reducing the efficiency of sewage filtration. Utility Model Content

[0004] The purpose of this invention is to solve the problems existing in the prior art.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a wastewater filtration device for wastewater treatment, comprising: a filter box, wherein multiple support legs are fixedly installed on the bottom surface of the filter box, a control terminal is fixedly installed on one side surface of the filter box, a discharge port is connected through the top surface of the filter box, a drain pipe is connected through the bottom surface of the filter box, a main filtration assembly is provided on one side surface of the filter box, movable assemblies are provided at both ends of one side surface of the filter box, a secondary filtration assembly is provided on the other side surface of the filter box, and a cleaning assembly is provided on the top inner wall surface of the filter box. The main filter assembly includes a plate groove, which is formed on one side surface of the filter box and is connected to the filter box. Vertical grooves are formed on both inner walls of the plate groove. Two insertion holes are formed on the bottom inner wall of the plate groove. A main filter plate is movably inserted into the two vertical grooves. Two rods are fixedly installed on the bottom surface of the main filter plate and are inserted into the two insertion holes respectively. Mounting plates are fixedly installed on both sides of the top surface of the main filter plate. Bolts are threaded through the top surface of the two mounting plates and are threaded to the top surface of the filter box.

[0006] In a preferred embodiment, the movable component includes two grooves symmetrically formed on one side surface of the filter box. A first motor is fixedly installed on the top inner wall surface of each of the two grooves. A threaded rod is fixedly installed at the output end of each of the two first motors. The bottom surface of each threaded rod is connected to the bottom inner wall surface of the two grooves via bearings. Movable blocks are threadedly connected to the surface of each threaded rod. The two side surfaces of each movable block are movably fitted to the two side inner wall surfaces of the two grooves.

[0007] In a preferred embodiment, hinge plates are hinged to one side surface of each of the two movable blocks, support rods are fixedly installed at both ends of one side surface of the filter box, limit plates are fixedly installed at one end of each of the two support rods, movable plates are movably fitted onto the outer wall surfaces of each of the two support rods, a guide frame is fixedly installed between the two movable plates, a U-shaped plate is fixedly installed on one side surface of the guide frame, a U-shaped groove is formed on one side surface of the filter box, the U-shaped plate is correspondingly movably inserted into the U-shaped groove, and the ends of the two hinge plates away from the two movable blocks are correspondingly hinged to one side surface of the two movable plates.

[0008] In a preferred embodiment, the secondary filter assembly includes two T-shaped grooves, which are formed on the inner wall surfaces of the two filter boxes on both sides. A through groove is formed on the other side surface of the filter box, and the through groove is connected to the two T-shaped grooves. A T-shaped plate is movably installed inside each of the two T-shaped grooves. A secondary filter plate is fixedly installed between the two T-shaped plates and is correspondingly inserted into the through groove. A sealing plate is fixedly installed on one side surface of the two T-shaped plates, and an extension plate and a handle are fixedly installed on one side surface of the sealing plate.

[0009] In a preferred embodiment, two support plates are fixedly installed on the other side surface of the filter box. A long rod is movably fitted between the two support plates and passes through them. A pull ring is fixedly installed on the top surface of the long rod, and the bottom end of the long rod movably passes through the surface of the extension plate. A circular plate is fixedly sleeved on the outer wall surface of the long rod, and the circular plate is located between the two support plates.

[0010] In a preferred embodiment, the cleaning assembly includes a rotating rod that is mounted on the top inner wall surface of the filter box via bearings. A second motor is fixedly mounted on the top surface of the filter box, and the output end of the second motor movably passes through the top surface of the filter box and is fixedly connected to the top end of the rotating rod.

[0011] In a preferred embodiment, multiple inclined plates are fixedly installed on the outer wall surface of the rotating rod, and soft brushes are fixedly installed on the bottom surface of each of the multiple inclined plates. The multiple soft brushes and the top surface of the auxiliary filter plate are movably attached to each other.

[0012] Compared with the prior art, the advantages and positive effects of the present invention are:

[0013] 1. This utility model discloses a wastewater filtration device for wastewater treatment. When the wastewater needs to be cleaned after treatment, the wastewater is added to the inside of the guide frame. The through holes on the surface of the main filter plate are relatively large compared to those on the surface of the secondary filter plate. Larger impurities in the wastewater are filtered by the main filter plate and remain inside the guide frame. They then continue to be filtered by the secondary filter plate and are finally discharged from the drain pipe. After the wastewater treatment is completed, two bolts are unscrewed, causing the main filter plate to lose its restraint inside the two vertical slots. The main filter plate can then be removed, allowing the two insert rods to move out of the two insert holes. The main filter plate can then be cleaned. The pull ring is then pulled upwards, causing the long rod to move and move out of the extension plate. This causes the two T-shaped plates to lose their restraint inside the two T-shaped slots. The secondary filter plate can then be cleaned by pulling out the handle. Through the cooperation of the above structure, the main filter plate and the secondary filter plate can be quickly disassembled or installed, facilitating the cleaning of impurities on the surface of the filter plates and preventing filter plate blockage from affecting subsequent filtration.

[0014] 2. In this utility model, when it is necessary to prevent filtered impurities from clogging the filter plates, a collection box is placed directly below the guide frame. Wastewater is added into the guide frame. The through holes on the surface of the main filter plate are relatively large compared to those on the surface of the secondary filter plate. Larger impurities in the wastewater are filtered by the main filter plate and remain inside the guide frame. They then continue to be filtered by the secondary filter plate and are finally discharged from the drain pipe. At this time, the control terminal operates two first motors, which drive two threaded rods to rotate. The rotation of the two threaded rods drives two movable blocks to move. The movement of the two movable blocks drives two hinge plates to move. The movement of the two hinge plates drives two movable plates to move on the surfaces of the two support rods. The movement of the two movable plates drives the guide frame to move, causing the impurities inside the guide frame to fall into the collection box. After the impurities inside the guide frame are cleaned, The guide frame can be reset by two first motors, and then the second motor is operated by the control terminal. The second motor drives the rotating rod to rotate, which in turn drives multiple inclined plates to rotate around the rotating rod as the central axis. The rotation of the inclined plates around the rotating rod as the central axis drives multiple soft brushes to rotate around the rotating rod as the central axis. Since the multiple soft brushes are in contact with the sub-filter plate, their rotation cleans the surface of the sub-filter plate, preventing the filtered impurities from accumulating on the surface of the sub-filter plate and affecting the filtration effect. At the same time, the rotation of the rod and the multiple inclined plates can stir the purification agent added to the sewage, ensuring that it is fully mixed and reacts with the sewage. Through the cooperation of the above structure, the guide frame can move to discharge the filtered impurities, and the multiple soft brushes can clean the surface of the sub-filter plate in real time, preventing impurities from accumulating on the surface of the filter plate, thus improving the filtration efficiency of the sewage filtration device for sewage treatment. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram of a wastewater filtration device for wastewater treatment provided by this utility model;

[0016] Figure 2 This utility model provides a wastewater filtration device for wastewater treatment. Figure 1 Partial structural diagram;

[0017] Figure 3 This utility model provides a wastewater filtration device for wastewater treatment. Figure 2 A partial diagram of the split structure;

[0018] Figure 4 A schematic diagram of the structure of a guide frame for a wastewater filtration device for wastewater treatment provided by this utility model;

[0019] Figure 5 A schematic diagram of the structure of the first filter plate of a sewage filtration device for sewage treatment provided by this utility model;

[0020] Figure 6 A left-side view of a wastewater filtration device for wastewater treatment provided by this utility model;

[0021] Figure 7 This utility model provides a wastewater filtration device for wastewater treatment. Figure 6 A schematic diagram of the cross-sectional structure;

[0022] Figure 8 This utility model provides a wastewater filtration device for wastewater treatment. Figure 7 Partial structural diagram;

[0023] Figure 9 A schematic diagram of the structure of the second filter plate of a sewage filtration device for sewage treatment provided by this utility model;

[0024] Figure 10 This utility model provides a wastewater filtration device for wastewater treatment. Figure 6 A schematic diagram of the structure of A in the middle.

[0025] Legend:

[0026] 1. Filter box; 2. Support leg; 3. Control terminal; 4. Drain pipe; 5. Main filter assembly; 501. Plate groove; 502. Vertical groove; 503. Insertion hole; 504. Main filter plate; 505. Insert rod; 506. Mounting plate; 507. Bolt; 6. Moving assembly; 601. Groove; 602. First motor; 603. Threaded rod; 604. Movable block; 605. Hinge plate; 606. Support rod; 607. Limiting plate; 608. Movable... 609. Plate; 610. Guide frame; 611. U-shaped plate; 612. U-shaped channel; 7. Secondary filter assembly; 701. T-shaped channel; 702. Through channel; 703. T-shaped plate; 704. Secondary filter plate; 705. Sealing plate; 706. Extension plate; 707. Support plate; 708. Long rod; 709. Pull ring; 710. Circular plate; 8. Cleaning assembly; 801. Rotating rod; 802. Second motor; 803. Inclined plate; 804. Soft brush; 9. Dispensing port. Detailed Implementation

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Please see Figure 1-10 This utility model provides a technical solution: a sewage filtration device for sewage treatment, comprising: a filter box 1, multiple support legs 2 fixedly installed on the bottom surface of the filter box 1, a control terminal 3 fixedly installed on one side surface of the filter box 1, a discharge port 9 connected through the top surface of the filter box 1, a drain pipe 4 connected through the bottom surface of the filter box 1, a main filter assembly 5 provided on one side surface of the filter box 1, moving components 6 provided at both ends of one side surface of the filter box 1, a secondary filter assembly 7 provided on the other side surface of the filter box 1, and a cleaning component 8 provided on the top inner wall surface of the filter box 1. The main filter assembly 5 includes a plate groove 501, which is formed in the filter... On one side surface of the box 1, the plate groove 501 and the filter box 1 are connected through. Vertical grooves 502 are opened on both sides of the inner wall surface of the plate groove 501. Two insertion holes 503 are opened on the bottom inner wall surface of the plate groove 501. The main filter plate 504 is movably inserted into the two vertical grooves 502. Two insertion rods 505 are fixedly installed on the bottom surface of the main filter plate 504. The two insertion rods 505 are correspondingly inserted into the two insertion holes 503. Mounting plates 506 are fixedly installed on both sides of the top surface of the main filter plate 504. Bolts 507 are threaded through the top surface of the two mounting plates 506. The two bolts 507 are threadedly connected to the top surface of the filter box 1.

[0029] Specifically: the device can be powered by connecting to an external power supply device via a line; the control terminal 3 controls the operation of the first motor 602 and the second motor 802; the two plug rods 505 and the plug hole 503 prevent the main filter plate 504 from shaking; the drain pipe 4 is equipped with an electrically controlled valve, which is controlled by the control terminal 3 to discharge sewage.

[0030] In one embodiment, the movable component 6 includes two grooves 601, which are symmetrically formed on one side surface of the filter box 1. A first motor 602 is fixedly installed on the top inner wall surface of each of the two grooves 601. A threaded rod 603 is fixedly installed on the output end of each of the two first motors 602. The bottom surface of each of the two threaded rods 603 is connected to the bottom inner wall surface of each of the two grooves 601 via bearings. Movable blocks 604 are threadedly connected to the surface of each of the two threaded rods 603. The two side surfaces of each of the two movable blocks 604 are movably fitted to the two side inner wall surfaces of each of the two grooves 601.

[0031] Specifically: Both first motors 602 are reversible motors, which drive the two threaded rods 603 to rotate in the forward and reverse directions. The threaded rods 603 drive the movable block 604 to move up and down inside the groove 601.

[0032] In one embodiment, hinge plates 605 are hinged to one side surface of each of the two movable blocks 604, support rods 606 are fixedly installed at both ends of one side surface of the filter box 1, limit plates 607 are fixedly installed at one end of each of the two support rods 606, movable plates 608 are movably fitted onto the outer wall surfaces of each of the two support rods 606, guide frames 609 are fixedly installed between the two movable plates 608, U-shaped plates 610 are fixedly installed on one side surface of the guide frames 609, U-shaped grooves 611 are formed on one side surface of the filter box 1, and U-shaped plates 610 are correspondingly movably inserted into the interior of the U-shaped grooves 611. The ends of the two hinge plates 605 away from the two movable blocks 604 are hinged to one side surface of the two movable plates 608.

[0033] Specifically: the two hinge plates 605 drive the two movable plates 608 to move on the surfaces of the two support rods 606, and the multiple outer wall surfaces of the U-shaped plate 610 correspond to the multiple inner wall surfaces of the U-shaped groove 611, thus preventing sewage from leaking to the side.

[0034] In one embodiment, the secondary filter assembly 7 includes two T-shaped grooves 701, which are formed on the inner wall surfaces of the two filter boxes 1 on both sides. A through groove 702 is formed on the other side surface of the filter box 1, and the through groove 702 is connected to the two T-shaped grooves 701. A T-shaped plate 703 is movably installed inside each of the two T-shaped grooves 701. A secondary filter plate 704 is fixedly installed between the two T-shaped plates 703, and the secondary filter plate 704 is correspondingly inserted into the through groove 702. A sealing plate 705 is fixedly installed on one side surface of the two T-shaped plates 703, and an extension plate 706 and a handle are fixedly installed on one side surface of the sealing plate 705.

[0035] Specifically: the secondary filter plate 704 is installed between the two T-shaped plates 703, which serves to support the secondary filter plate 704. One side of the sealing plate 705 is connected to a sealing gasket that fits against the outer wall of the filter box 1 for sealing.

[0036] In one embodiment, two support plates 707 are fixedly installed on the other side surface of the filter box 1. A long rod 708 is movably fitted between the two support plates 707 and passes through them. A pull ring 709 is fixedly installed on the top surface of the long rod 708. The bottom end of the long rod 708 movably passes through the surface of the extension plate 706. A circular plate 710 is fixedly sleeved on the outer wall surface of the long rod 708. The circular plate 710 is located between the two support plates 707.

[0037] Specifically: the long rod 708 moves through the extension plate 706, which prevents the secondary filter plate 704 from moving, and the circular plate 710 prevents the long rod 708 from detaching from the two support plates 707.

[0038] In one embodiment, the cleaning component 8 includes a rotating rod 801, which is mounted on the top inner wall surface of the filter box 1 via a bearing. A second motor 802 is fixedly mounted on the top surface of the filter box 1, and the output end of the second motor 802 movably passes through the top surface of the filter box 1 and is fixedly connected to the top end of the rotating rod 801.

[0039] Specifically: the second motor 802 plays the role of driving the rotating rod 801 to rotate.

[0040] In one embodiment, a plurality of inclined plates 803 are fixedly installed on the outer wall surface of the rotating rod 801, and soft brushes 804 are fixedly installed on the bottom plate surface of the plurality of inclined plates 803. The plurality of soft brushes 804 and the top surface of the auxiliary filter plate 704 are movably attached.

[0041] Specifically: the rotating rod 801 drives multiple soft brushes to rotate around the rotating rod 801 as the central axis. The soft brush 804 cleans the impurities filtered on the surface of the secondary filter plate 704 and prevents impurities from accumulating and clogging the secondary filter plate 704. The filter holes on the surface of the main filter plate 504 are larger than those on the surface of the secondary filter plate 704.

[0042] Working principle: This wastewater treatment filtration device can perform wastewater treatment operations. When wastewater is injected into the filter box 1, a purifying agent can be added to the inside of the filter box 1 through the inlet 9. When the filter plates need to be cleaned after wastewater treatment, wastewater is added to the inside of the guide frame 609. The through holes on the surface of the main filter plate 504 are larger than those on the surface of the secondary filter plate 704. Larger impurities in the wastewater are filtered by the main filter plate 504 and remain inside the guide frame 609. They then continue to be filtered by the secondary filter plate 704 and finally discharged from the drain pipe 4. After the wastewater treatment is completed, two bolts 507 are unscrewed, causing the main filter plate 504 to lose its restraint inside the two vertical grooves 502. When the main filter plate 504 is removed, the two insert rods 505 are moved out of the two insert holes 503. Then the main filter plate 504 can be cleaned. Then pull the pull ring 709 upward. The pull ring 709 moves and drives the long rod 708 to move. The long rod 708 moves and moves out of the extension plate 706, so that the two T-shaped plates 703 lose their restraint inside the two T-shaped grooves 701. At this time, the auxiliary filter plate 704 can be pulled out by the handle and cleaned. Through the cooperation of the above structure, the main filter plate 504 and the auxiliary filter plate 704 can be quickly disassembled or installed, which facilitates the cleaning of impurities on the surface of the filter plate and avoids the filter plate clogging from affecting subsequent filtration.When it is necessary to prevent filtered impurities from clogging the filter plates, a collection box is placed directly below the guide frame 609. Wastewater is added into the guide frame 609. The through holes on the surface of the main filter plate 504 are larger than those on the surface of the secondary filter plate 704. Larger impurities in the wastewater are filtered by the main filter plate 504 and remain inside the guide frame 609. They then continue to be filtered by the secondary filter plate 704 and are finally discharged from the drain pipe 4. At this time, the control terminal 3 operates two first motors 602. The operation of the two first motors 602 drives the two threaded rods 603 to rotate. The rotation of the two threaded rods 603 drives the two movable blocks 604 to move. The movement of the two movable blocks 604 drives the two hinge plates 605 to move. The movement of the two hinge plates 605 drives the two movable plates 608 to move on the surface of the two support rods 606. The movement of the two movable plates 608 drives the guide frame 609 to move. The movement of the guide frame 609 causes the impurities inside the guide frame 609 to fall into the collection box. Once the impurities inside the guide frame 609 are cleaned, the wastewater can be discharged through the two... The first motor 602 resets the guide frame 609, and then the second motor 802 is activated via the control terminal 3. The second motor 802 drives the rotating rod 801 to rotate, which in turn drives multiple inclined plates 803 to rotate around the rotating rod 801 as the central axis. The rotation of the inclined plates 803 around the rotating rod 801 drives multiple soft brushes 804 to rotate around the rotating rod 801 as the central axis. Because the multiple soft brushes 804 are in contact with the sub-filter plate 704, their rotation cleans the surface of the sub-filter plate 704, preventing impurities from accumulating on its surface and affecting the filtration effect. Simultaneously, the rotating rod 801 drives the multiple inclined plates 803 to rotate, stirring the purification agent added to the wastewater to ensure thorough mixing and purification. Through the coordination of these structures, the guide frame 609 can move to discharge filtered impurities, and the multiple soft brushes 804 can clean the surface of the sub-filter plate 704 in real time, preventing impurities from accumulating on the filter plate surface, thus improving the filtration efficiency of the wastewater treatment filtration device.

[0043] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A wastewater filtration device for wastewater treatment, characterized in that, include: A filter box (1) has multiple support legs (2) fixedly installed on its bottom surface. A discharge port (9) is connected through the top surface of the filter box (1). A control terminal (3) is fixedly installed on one side surface of the filter box (1). A drain pipe (4) is connected through the bottom surface of the filter box (1). A main filter assembly (5) is provided on one side surface of the filter box (1). Moving components (6) are provided at both ends of one side surface of the filter box (1). A secondary filter assembly (7) is provided on the other side surface of the filter box (1). A cleaning assembly (8) is provided on the top inner wall surface of the filter box (1). The main filter assembly (5) includes a plate groove (501), which is located on one side surface of the filter box (1). (501) and filter box (1) are connected in a through manner. Vertical grooves (502) are provided on both sides of the inner wall surface of the plate groove (501). Two insertion holes (503) are provided on the bottom inner wall surface of the plate groove (501). The main filter plate (504) is movably inserted into the two vertical grooves (502). Two insertion rods (505) are fixedly installed on the bottom surface of the main filter plate (504). The two insertion rods (505) are correspondingly inserted into the two insertion holes (503). Mounting plates (506) are fixedly installed on both sides of the top surface of the main filter plate (504). Bolts (507) are threaded through the top surface of the two mounting plates (506). The two bolts (507) are threadedly connected to the top surface of the filter box (1).

2. The wastewater filtration device for wastewater treatment according to claim 1, characterized in that: The moving component (6) includes two grooves (601), which are symmetrically opened on one side surface of the filter box (1). A first motor (602) is fixedly installed on the top inner wall surface of each of the two grooves (601). A threaded rod (603) is fixedly installed on the output end of each of the two first motors (602). The bottom surface of each of the two threaded rods (603) is connected to the bottom inner wall surface of the two grooves (601) through bearings. A movable block (604) is threadedly connected to the surface of each of the two threaded rods (603). The two sides of each movable block (604) are in movable contact with the two sides of the inner wall surface of the two grooves (601).

3. A wastewater filtration device for wastewater treatment according to claim 2, characterized in that: Hinged plates (605) are hinged to one side surface of each of the two movable blocks (604). Support rods (606) are fixedly installed at both ends of one side surface of the filter box (1). Limiting plates (607) are fixedly installed at one end of each of the two support rods (606). Movable plates (608) are fitted and movably sleeved on the outer wall surface of each of the two support rods (606). A guide frame (609) is fixedly installed between the two movable plates (608). A U-shaped plate (610) is fixedly installed on one side surface of the guide frame (609). A U-shaped groove (611) is opened on one side surface of the filter box (1). The U-shaped plate (610) is correspondingly movably inserted into the U-shaped groove (611). The ends of the two hinged plates (605) away from the two movable blocks (604) are hinged to one side surface of the two movable plates (608).

4. A wastewater filtration device for wastewater treatment according to claim 1, characterized in that: The secondary filter assembly (7) includes two T-shaped grooves (701), which are formed on the inner wall surfaces of the two filter boxes (1) on both sides. A through groove (702) is formed on the other side surface of the filter box (1). The through groove (702) is connected to the two T-shaped grooves (701). A T-shaped plate (703) is movably installed inside each of the two T-shaped grooves (701). A secondary filter plate (704) is fixedly installed between the two T-shaped plates (703). The secondary filter plate (704) is inserted into the through groove (702). A sealing plate (705) is fixedly installed on one side surface of the two T-shaped plates (703). An extension plate (706) and a handle are fixedly installed on one side surface of the sealing plate (705).

5. A wastewater filtration device for wastewater treatment according to claim 1, characterized in that: Two support plates (707) are fixedly installed on the other side surface of the filter box (1). A long rod (708) is movably attached between the two support plates (707). A pull ring (709) is fixedly installed on the top surface of the long rod (708). The bottom end of the long rod (708) movably passes through the surface of the extension plate (706). A circular plate (710) is fixedly sleeved on the outer wall surface of the long rod (708). The circular plate (710) is located between the two support plates (707).

6. A wastewater filtration device for wastewater treatment according to claim 1, characterized in that: The cleaning assembly (8) includes a rotating rod (801), which is mounted on the top inner wall surface of the filter box (1) via a bearing. A second motor (802) is fixedly mounted on the top surface of the filter box (1). The output end of the second motor (802) movably penetrates the top surface of the filter box (1) and is fixedly connected to the top end of the rotating rod (801).

7. A wastewater filtration device for wastewater treatment according to claim 6, characterized in that: Multiple inclined plates (803) are fixedly installed on the outer wall surface of the rotating rod (801). Soft brushes (804) are fixedly installed on the bottom plate surface of each of the multiple inclined plates (803). The multiple soft brushes (804) and the top surface of the auxiliary filter plate (704) are movably attached.

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