A flocculation and precipitation device for a laboratory comprehensive wastewater treatment system

Abstract

The application discloses a flocculation and precipitation device for a laboratory comprehensive wastewater treatment system, and relates to the technical field of wastewater treatment.The flocculation and precipitation device comprises a flocculation and precipitation tank, symmetrical side plates are fixedly connected to the two sides of the flocculation and precipitation tank, support columns are fixedly connected to the bottom ends of the side plates, a suction pipe is arranged above the flocculation and precipitation tank, a liquid pump is mounted to the outer wall of the suction pipe, a filtering mechanism, and a collecting mechanism.The filtering mechanism is arranged, and a motor drives the movable pipe to displace;when the connecting frame moves downward, the second mounting frame rotates to be horizontal, the first mounting frame and the second mounting frame displace downward, the first filter plate and the second filter plate filter wastewater, the liquid pump is started, the suction pipe performs water pumping operation through the movable pipe, the filtered wastewater is pumped by the suction pipe through the movable pipe, and the precipitate is always located below the first mounting frame and the second mounting frame, so that the precipitate can be prevented from being pumped by the pipe.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically a flocculation and sedimentation device for a comprehensive laboratory wastewater treatment system. Background Technology

[0002] In response to the global call for carbon peaking and compliance, and with my country's economic development and technological progress, research institutions, universities, and enterprises across the country are conducting increasingly in-depth and extensive scientific research, experiments, and testing. This has led to a significant increase in the volume of laboratory wastewater and sewage discharged from these facilities. Furthermore, the quality of this wastewater and sewage is complex, with irregular discharge cycles and volumes. It also contains a wide range of pollutants and harmful substances, including detergents, common solvents, acids, alkalis, toxic and harmful organic compounds, and heavy metals. Although the volume of laboratory wastewater is relatively small, direct discharge after treatment would cause significant environmental pollution. Therefore, wastewater treatment is necessary.

[0003] After flocculation and sedimentation of wastewater, the treated water needs to be extracted. However, during the extraction, some sediment is easily drawn out along with the water through the pipeline, which affects subsequent treatment operations. In order to avoid the sediment being drawn out through the pipeline, a flocculation and sedimentation device for a laboratory integrated wastewater treatment system is provided. Summary of the Invention

[0004] The purpose of this invention is to provide a flocculation and sedimentation device for a laboratory integrated wastewater treatment system in order to avoid the extraction of sediments by pipelines.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a flocculation sedimentation device for a laboratory integrated wastewater treatment system, comprising a flocculation sedimentation tank, side plates symmetrically fixedly connected to both sides of the flocculation sedimentation tank, a support column fixedly connected to the bottom end of the side plates, an extraction pipe disposed above the flocculation sedimentation tank, a liquid pump installed on the outer wall of the extraction pipe, one end of the extraction pipe connected to subsequent treatment equipment, a feed inlet disposed at the top of the flocculation sedimentation tank, a filtration mechanism preventing sediment from entering the extraction pipe, and a collection mechanism for collecting the sediment.

[0006] The filtration mechanism includes a mounting plate, which is fixedly connected to the top of the flocculation sedimentation tank and located on one side of the feed inlet. A motor is mounted on the top of the mounting plate, and the output end of the motor is connected to a first threaded rod. A movable plate is slidably connected to the outer wall of the first threaded rod, and a movable tube is fixedly connected to the outer wall of the movable plate. The movable tube is slidably sleeved on the outer wall of the extraction tube, and a connecting frame is fixedly connected to the bottom outer wall of the movable tube. A first mounting frame is fixedly connected to the bottom end of the connecting frame, and a second mounting frame is rotatably connected to one side of the first mounting frame. The second mounting frame is located below the feed inlet, and a first filter plate is fixedly connected to the inner wall of the first mounting frame, and a second filter plate is fixedly connected to the inner wall of the second mounting frame.

[0007] As a further embodiment of the present invention: the filtering mechanism further includes a first spur gear, which is rotatably connected to the interior of the first mounting bracket. The first spur gear is fixedly connected to the second mounting bracket. A toothed rod is slidably connected to one side of the first spur gear inside the first mounting bracket. The top end of the toothed rod extends above the connecting bracket. A first spring is connected between the bottom end of the toothed rod and the first mounting bracket. A locking block extending from the toothed rod is slidably connected inside the toothed rod. A second spring is connected between the locking block and the toothed rod. A pressing block is slidably connected to the top end of the locking block inside the toothed rod. The pressing block extends above the toothed rod.

[0008] As a further embodiment of the present invention: the collection mechanism includes a collection box, which is sleeved on the bottom end of the flocculation sedimentation box. A connecting groove is provided on the outer wall of the side plate. A connecting block is symmetrically fixedly connected to the top of the collection box. A fixing block extending from the connecting block is slidably connected to the connecting block and the inside of the collection box. A third spring is connected between the fixing block and the collection box. A push plate is slidably connected to the inside of the collection box on one side of the fixing block. A second threaded rod passing through the push plate is rotatably connected to the inside of the collection box. One end of the second threaded rod is fixedly connected to a rotating column on the outer wall of the collection box.

[0009] As a further embodiment of the present invention: the collection mechanism further includes a reinforcing groove, the reinforcing groove being opened on one side of the two connecting blocks that are close to each other; vertical plates are symmetrically and slidably connected to both sides of the inner wall of the flocculation sedimentation tank; a fourth spring is connected between the vertical plates and the flocculation sedimentation tank; a horizontal bar is fixedly connected to the outer wall of the vertical plates; a second spur gear is rotatably connected to the inner side of the side plate located on the outer wall of the horizontal bar; a reinforcing block is slidably connected to the inner side of the side plate located on the outer wall of the second spur gear; one end of the reinforcing block extends into the inner cavity of the connecting groove.

[0010] As a further embodiment of the present invention: the outer wall of the movable plate is provided with a first threaded hole, the first threaded hole is matched with the first threaded rod, and the inner wall of the movable tube is in contact with the outer wall of the extraction tube.

[0011] As a further embodiment of the present invention: the top of the card block is provided with a first inclined surface, and the bottom of the squeezing block is in contact with the first inclined surface.

[0012] As a further embodiment of the present invention: the outer wall of the gear is provided with a first tooth groove, which meshes with the first spur gear.

[0013] As a further embodiment of the present invention: the outer wall of the connecting block is fitted with the inner wall of the connecting groove, and the fixing block extends out of the connecting block and is provided with a second inclined surface.

[0014] As a further embodiment of the present invention: the outer wall of the push plate is provided with a second threaded hole, which matches the second threaded rod.

[0015] As a further embodiment of the present invention: the outer wall of one end of the reinforcing block is in contact with the inner wall of the reinforcing groove, a third inclined surface is provided at one end of the reinforcing block located in the inner cavity of the connecting groove, and a second tooth groove is provided on the outer wall of both the crossbar and the reinforcing block, the second tooth groove meshing with the second spur gear.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. By setting up a filtration mechanism, the motor drives the movable pipe to move; when the connecting frame moves downward, the second mounting frame rotates to a horizontal position, and the first and second mounting frames move downward. The first and second filter plates filter the wastewater. The liquid pump is started, and the extraction pipe pumps water through the movable pipe. The filtered wastewater is extracted through the movable pipe by the extraction pipe. The sediment is always located below the first and second mounting frames to prevent the sediment from being extracted by the pipeline.

[0018] 2. By setting up a collection mechanism, the connecting block is inserted into the connecting groove. The fixed block is displaced and enters the interior of the connecting block, compressing the third spring until the top of the fixed block is at the top of the side plate. The fixed block is then in contact with the top of the side plate by the elastic force of the third spring, thus fixing the collection box. When removing the collection box, the rotating column is rotated, which drives the second threaded rod to rotate. The rotation of the second threaded rod drives the push plate to move, and the displacement of the push plate pushes the fixed block to move. The fixed block is displaced from the side plate, thus allowing the collection box to be removed, facilitating the collection and treatment of the sediment generated in the flocculation sedimentation tank. Attached Figure Description

[0019] Figure 1 This is a wastewater treatment flow chart of the present invention;

[0020] Figure 2 This is a schematic diagram of the flocculation sedimentation tank of the present invention;

[0021] Figure 3 This is a cross-sectional view of the flocculation sedimentation tank of the present invention;

[0022] Figure 4 This is a cross-sectional view of the active tube of the present invention;

[0023] Figure 5 This is a schematic diagram of the installation of the rack of the present invention;

[0024] Figure 6 This is a partial cross-sectional view of the toothed rod of the present invention;

[0025] Figure 7 This is a schematic diagram of the installation of the collection box of the present invention;

[0026] Figure 8 This is a cross-sectional view of the collection box of the present invention;

[0027] Figure 9 This is a schematic diagram of the installation of the vertical plate of the present invention.

[0028] In the diagram: 1. Flocculation sedimentation tank; 2. Side plate; 3. Support column; 4. Extraction pipe; 5. Liquid pump; 6. Feed inlet; 7. Filtration mechanism; 701. Mounting plate; 702. Motor; 703. First threaded rod; 704. Movable plate; 705. Movable pipe; 706. Connecting frame; 707. First mounting frame; 708. Second mounting frame; 709. First filter plate; 710. Second filter plate; 711. First spur gear; 712. Gear rack; 7 13. First spring; 714. Locking block; 715. Second spring; 716. Pressing block; 8. Collection mechanism; 801. Collection box; 802. Connecting groove; 803. Connecting block; 804. Fixing block; 805. Third spring; 806. Push plate; 807. Second threaded rod; 808. Rotating column; 809. Reinforcing groove; 810. Vertical plate; 811. Fourth spring; 812. Horizontal bar; 813. Second spur gear; 814. Reinforcing block. Detailed Implementation

[0029] 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.

[0030] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The following describes embodiments of the invention based on its overall structure.

[0031] Please see Figures 1 to 9 In this embodiment of the invention, a flocculation sedimentation device for a laboratory integrated wastewater treatment system includes a flocculation sedimentation tank 1. Side plates 2 are symmetrically fixedly connected to both sides of the flocculation sedimentation tank 1, and a support column 3 is fixedly connected to the bottom of the side plates 2. An extraction pipe 4 is provided above the flocculation sedimentation tank 1, and a liquid pump 5 is installed on the outer wall of the extraction pipe 4. One end of the extraction pipe 4 is connected to subsequent treatment equipment. An inlet 6 is provided at the top of the flocculation sedimentation tank 1. The extraction pipe 4 is protected from entering the extraction pipe 4 by a filter mechanism 7, and the sediment is collected by a collection mechanism 8.

[0032] In this embodiment: wastewater is collected in a collection tank, and then injected into an acid-base neutralization tank. The pH of the wastewater is monitored, and the pH value is adjusted by adding alkali or acid. The adjusted wastewater is then injected into a flocculation sedimentation device, and flocculant is added. The resulting precipitate is placed in a sludge processor for treatment. The wastewater is treated by a heavy metal capture device, a photocatalytic reactor, a micro-electrolysis reactor, and a microbial reactor. After further treatment by a biological active adsorption device, a precision filter, and a PVDF membrane, the wastewater meets the discharge standards.

[0033] Please refer to this carefully. Figures 2 to 6The filtration mechanism 7 includes a mounting plate 701, which is fixedly connected to the top of the flocculation sedimentation tank 1 and located on one side of the inlet 6. A motor 702 is mounted on the top of the mounting plate 701. The output end of the motor 702 is connected to a first threaded rod 703. A movable plate 704 is slidably connected to the outer wall of the first threaded rod 703. A movable tube 705 is fixedly connected to the outer wall of the movable plate 704. The movable tube 705 is slidably sleeved on the outer wall of the extraction tube 4. A connecting frame 706 is fixedly connected to the bottom outer wall of the movable tube 705. A first mounting frame 707 is fixedly connected to the bottom end of the connecting frame 706. A second mounting frame 708 is rotatably connected to one side of the first mounting frame 707. The second mounting frame 708 is located below the inlet 6. A first filter plate 709 is fixedly connected to the inner wall of the first mounting frame 707. The inner wall of the filter 708 is fixedly connected to a second filter plate 710. The filter mechanism 7 also includes a first spur gear 711, which is rotatably connected to the inside of the first mounting bracket 707. The first spur gear 711 is fixedly connected to the second mounting bracket 708. Inside the first mounting bracket 707, a toothed rod 712 is slidably connected to one side of the first spur gear 711. The top end of the toothed rod 712 extends above the connecting bracket 706. The bottom end of the toothed rod 712 is connected to the first mounting bracket 707 by a first spring 713. Inside the toothed rod 712, a locking block 714 extends out of the toothed rod 712. A second spring 715 is connected between the locking block 714 and the toothed rod 712. Inside the toothed rod 712, at the top end of the locking block 714, a pressing block 716 is slidably connected to the toothed rod 712. The pressing block 716 extends above the toothed rod 712.

[0034] In this embodiment: the motor 702 drives the first threaded rod 703 to rotate, the rotation of the first threaded rod 703 drives the movable plate 704 to move, the displacement of the movable plate 704 drives the movable tube 705 to move, at this time the movable tube 705 slides along the outer wall of the extraction tube 4, and the displacement of the movable tube 705 drives the first mounting bracket 707 to move through the connecting bracket 706.

[0035] When the connecting frame 706 moves upward, causing the first mounting frame 707 to move upward, the extrusion block 716 first contacts the top of the inner wall of the flocculation sedimentation tank 1, pushing the extrusion block 716 to move. The displacement of the extrusion block 716 pushes the locking block 714 to move. The locking block 714 moves into the toothed rod 712 and separates from the connecting frame 706, causing compression on the second spring 715, so that the toothed rod 712 can move downward relative to the connecting frame 706. Then, the toothed rod 712 contacts the top of the inner wall of the flocculation sedimentation tank 1, pushing the toothed rod 712 to move, causing compression on the first spring 713. The displacement of the toothed rod 712 drives the first spur gear 711 to rotate. The rotation of the first spur gear 711 drives the second mounting frame 708 to rotate. The second mounting frame 708 rotates to a vertical position and moves away from below the feed inlet 6. At this time, wastewater and flocculant can be injected into the flocculation sedimentation tank 1 through the feed inlet 6.

[0036] When the connecting frame 706 moves downward, the toothed rod 712 separates from the flocculation sedimentation tank 1. The toothed rod 712 is displaced and reset by the elastic force of the first spring 713. The displacement of the toothed rod 712 drives the first spur gear 711 to rotate. The rotation of the first spur gear 711 drives the second mounting frame 708 to rotate horizontally. At this time, the locking block 714 is displaced to the top of the connecting frame 706. The locking block 714 is displaced by the elastic force of the second spring 715 and contacts the top of the connecting frame 706, positioning the toothed rod 712. The first mounting frame 707 and the second mounting frame 708 move downward. The first filter plate 709 and the second filter plate 710 filter the wastewater. The liquid pump 5 is started, and the extraction pipe 4 pumps water through the movable pipe 705. The filtered wastewater is extracted by the extraction pipe 4 through the movable pipe 705. The sediment is always located below the first mounting frame 707 and the second mounting frame 708 to prevent the sediment from being extracted by the pipeline.

[0037] Please refer to this carefully. Figures 7 to 9The collection mechanism 8 includes a collection box 801, which is sleeved on the bottom end of the flocculation sedimentation tank 1. A connecting groove 802 is provided on the outer wall of the side plate 2. A connecting block 803 is symmetrically fixedly connected to the top of the collection box 801. A fixing block 804 extending from the connecting block 803 is slidably connected to the inside of the collection box 801. A third spring 805 connects the fixing block 804 and the collection box 801. A push plate 806 is slidably connected to the inside of the collection box 801 on one side of the fixing block 804. A second threaded rod 807, passing through the push plate 806, is rotatably connected inside the collection box 801. One end of the second threaded rod 807... A rotating column 808 is fixedly connected to the outer wall of the collection box 801. The collection mechanism 8 also includes a reinforcing groove 809. The reinforcing groove 809 is opened on one side of the two connecting blocks 803 that are close to each other. Vertical plates 810 are symmetrically slidably connected to both sides of the inner wall of the flocculation sedimentation box 1. A fourth spring 811 is connected between the vertical plates 810 and the flocculation sedimentation box 1. A horizontal bar 812 is fixedly connected to the outer wall of the vertical plates 810. A second spur gear 813 is rotatably connected to the inner wall of the side plate 2 located on the outer wall of the horizontal bar 812. A reinforcing block 814 is slidably connected to the inner wall of the side plate 2 located on the outer wall of the second spur gear 813. One end of the reinforcing block 814 extends into the inner cavity of the connecting groove 802.

[0038] In this embodiment: when installing the collection box 801, the connecting block 803 is inserted into the connecting groove 802, and the fixing block 804 is displaced into the interior of the connecting block 803, compressing the third spring 805 until the top of the fixing block 804 is located at the top of the side plate 2. The fixing block 804 is in contact with the top of the side plate 2 under the elastic force of the third spring 805, thereby fixing the collection box 801. When removing the collection box 801, the rotating column 808 is rotated, which drives the second threaded rod 807 to rotate. The rotation of the second threaded rod 807 drives the push plate 806 to move, and the displacement of the push plate 806 pushes the fixing block 804 to move. The fixing block 804 is displaced and separated from the side plate 2, thereby allowing the collection box 801 to be removed.

[0039] When the first mounting bracket 707 and the second mounting bracket 708 are located at the upper part of the flocculation sedimentation tank 1, the reinforcing block 814 engages in the reinforcing groove 809 and the connecting block 803 engages in the connecting groove 802 to prevent the collection tank 801 from becoming loose. When the first mounting bracket 707 and the second mounting bracket 708 move downwards, they both come into contact with the vertical plate 810, pushing the vertical plate 810 to move and compressing the fourth spring 811. The displacement of the vertical plate 810 causes the horizontal bar 812 to move, which in turn causes the second spur gear 813 to rotate. The rotation of the second spur gear 813 causes the reinforcing block 814 to move, and the reinforcing block 814 moves out of the reinforcing groove 809, thus removing the fixation of the connecting block 803. At this time, the collection tank 801 can be disassembled to process the sediment in the collection tank 801, facilitating the collection and processing of the sediment generated in the flocculation sedimentation tank 1.

[0040] Please refer to this carefully. Figures 2 to 6 The outer wall of the movable plate 704 is provided with a first threaded hole, which matches the first threaded rod 703. The inner wall of the movable tube 705 is in contact with the outer wall of the extraction tube 4.

[0041] In this embodiment: the motor 702 drives the first threaded rod 703 to rotate, the rotation of the first threaded rod 703 drives the movable plate 704 to move, the displacement of the movable plate 704 drives the movable tube 705 to move, at this time the movable tube 705 slides along the outer wall of the extraction tube 4, and the displacement of the movable tube 705 drives the first mounting bracket 707 to move through the connecting bracket 706.

[0042] Please refer to this carefully. Figures 2 to 6 The top of the card block 714 is provided with a first inclined surface, and the bottom of the pressing block 716 is in contact with the first inclined surface.

[0043] In this embodiment: when the connecting frame 706 moves upward and drives the first mounting frame 707 to move upward, the squeezing block 716 first contacts the top of the inner wall of the flocculation sedimentation tank 1, pushing the squeezing block 716 to move. The displacement of the squeezing block 716 pushes the locking block 714 to move. The locking block 714 moves into the toothed rod 712 and separates from the connecting frame 706, squeezing the second spring 715, so that the toothed rod 712 can move downward relative to the connecting frame 706.

[0044] Please refer to this carefully. Figures 2 to 6 The outer wall of the rack 712 is provided with a first tooth groove, which meshes with the first spur gear 711.

[0045] In this embodiment: the toothed rod 712 contacts the top of the inner wall of the flocculation sedimentation tank 1, pushing the toothed rod 712 to move. The displacement of the toothed rod 712 drives the first spur gear 711 to rotate. The rotation of the first spur gear 711 drives the second mounting bracket 708 to rotate. The second mounting bracket 708 rotates to a vertical position and moves away from below the feed inlet 6.

[0046] Please refer to this carefully. Figures 7 to 9 The outer wall of the connecting block 803 fits against the inner wall of the connecting groove 802, and the fixing block 804 extends out of the connecting block 803 and is provided with a second inclined surface.

[0047] In this embodiment: the connecting block 803 is inserted into the connecting groove 802, and the fixing block 804 is displaced into the interior of the connecting block 803, which compresses the third spring 805 until the top of the fixing block 804 is located at the top of the side plate 2. The fixing block 804 is in contact with the top of the side plate 2 by the elastic force of the third spring 805, thereby fixing the collection box 801.

[0048] Please refer to this carefully. Figures 7 to 9 The outer wall of the push plate 806 is provided with a second threaded hole, which matches the second threaded rod 807.

[0049] In this embodiment: Rotating the rotating column 808 causes the second threaded rod 807 to rotate, and the rotation of the second threaded rod 807 causes the push plate 806 to move. The displacement of the push plate 806 pushes the fixing block 804 to move, and the fixing block 804 moves and separates from the side plate 2, thereby allowing the collection box 801 to be dismantled.

[0050] Please refer to this carefully. Figures 7 to 9 One end of the outer wall of the reinforcing block 814 is in contact with the inner wall of the reinforcing groove 809. The reinforcing block 814 is provided with a third inclined surface at one end of the inner cavity of the connecting groove 802. The outer walls of the crossbar 812 and the reinforcing block 814 are both provided with second tooth grooves, which mesh with the second spur gear 813.

[0051] In this embodiment: when the first mounting bracket 707 and the second mounting bracket 708 move downwards, both the first mounting bracket 707 and the second mounting bracket 708 come into contact with the vertical plate 810, pushing the vertical plate 810 to move, which compresses the fourth spring 811. The displacement of the vertical plate 810 causes the horizontal bar 812 to move, and the displacement of the horizontal bar 812 causes the second spur gear 813 to rotate. The rotation of the second spur gear 813 causes the reinforcing block 814 to move, and the reinforcing block 814 moves out of the reinforcing groove 809, thus canceling the fixation of the connecting block 803.

[0052] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A flocculation sedimentation device for a laboratory integrated wastewater treatment system, comprising a flocculation sedimentation tank (1), characterized in that, The flocculation sedimentation tank (1) is symmetrically fixedly connected to two side plates (2), and a support column (3) is fixedly connected to the bottom of the side plates (2). An extraction pipe (4) is provided above the flocculation sedimentation tank (1), and a liquid pump (5) is installed on the outer wall of the extraction pipe (4). One end of the extraction pipe (4) is connected to the subsequent processing equipment. An inlet (6) is provided at the top of the flocculation sedimentation tank (1). The extraction pipe (4) is protected from entering the extraction pipe (4) by a filter mechanism (7). The sediment is collected by a collection mechanism (8). The filter mechanism (7) includes an installation plate (701). The installation plate (701) is fixedly connected to the top of the flocculation sedimentation tank (1) and located on one side of the inlet (6). A motor (702) is installed at the top of the installation plate (701). The output end of 02) is connected to a first threaded rod (703), the outer wall of the first threaded rod (703) is slidably connected to a movable plate (704), the outer wall of the movable plate (704) is fixedly connected to a movable tube (705), the movable tube (705) is slidably sleeved on the outer wall of the extraction tube (4), the bottom outer wall of the movable tube (705) is fixedly connected to a connecting frame (706), the bottom end of the connecting frame (706) is fixedly connected to a first mounting frame (707), one side of the first mounting frame (707) is rotatably connected to a second mounting frame (708), the second mounting frame (708) is located below the feed inlet (6), the inner wall of the first mounting frame (707) is fixedly connected to a first filter plate (709), and the inner wall of the second mounting frame (708) is fixedly connected to a second filter plate (710). The filtration mechanism (7) further includes a first spur gear (711), which is rotatably connected to the interior of the first mounting bracket (707). The first spur gear (711) is fixedly connected to the second mounting bracket (708). A rack (712) is slidably connected to the interior of the first mounting bracket (707) on one side of the first spur gear (711). The top end of the rack (712) extends above the connecting bracket (706). A first spring (713) is connected between the bottom end of the toothed rod (712) and the first mounting bracket (707). A locking block (714) extending out of the toothed rod (712) is slidably connected inside the toothed rod (712). A second spring (715) is connected between the locking block (714) and the toothed rod (712). A pressing block (716) is slidably connected inside the toothed rod (712) at the top of the locking block (714). The pressing block (716) extends above the toothed rod (712).

2. The flocculation and sedimentation device for a comprehensive laboratory wastewater treatment system according to claim 1, characterized in that, The collection mechanism (8) includes a collection box (801), which is fitted onto the bottom end of the flocculation sedimentation box (1). A connecting groove (802) is provided on the outer wall of the side plate (2). A connecting block (803) is symmetrically fixedly connected to the top of the collection box (801). A fixing block (804) extending from the connecting block (803) is slidably connected to the inside of the connecting block (803) and the collection box (801). A third spring (805) is connected between the fixing block (804) and the collection box (801). A push plate (806) is slidably connected to the inside of the collection box (801) on one side of the fixing block (804). A second threaded rod (807) passing through the push plate (806) is rotatably connected to the inside of the collection box (801). A rotating column (808) is fixedly connected to one end of the second threaded rod (807) on the outer wall of the collection box (801).

3. The flocculation and sedimentation device for a comprehensive laboratory wastewater treatment system according to claim 2, characterized in that, The collection mechanism (8) also includes a reinforcing groove (809), which is located on the side where the two connecting blocks (803) are close to each other. Vertical plates (810) are symmetrically slidably connected to both sides of the inner wall of the flocculation sedimentation tank (1). A fourth spring (811) is connected between the vertical plate (810) and the flocculation sedimentation tank (1). A crossbar (812) is fixedly connected to the outer wall of the vertical plate (810). A second spur gear (813) is rotatably connected to the inner wall of the side plate (2) located on the outer wall of the crossbar (812). A reinforcing block (814) is slidably connected to the inner wall of the side plate (2) located on the outer wall of the second spur gear (813). One end of the reinforcing block (814) extends into the inner cavity of the connecting groove (802).

4. The flocculation and sedimentation device for a comprehensive laboratory wastewater treatment system according to claim 1, characterized in that, The outer wall of the movable plate (704) is provided with a first threaded hole, which matches the first threaded rod (703). The inner wall of the movable tube (705) is in contact with the outer wall of the extraction tube (4).

5. The flocculation and sedimentation device for a comprehensive laboratory wastewater treatment system according to claim 1, characterized in that, The top of the card block (714) is provided with a first inclined surface, and the bottom of the pressing block (716) is in contact with the first inclined surface.

6. The flocculation and sedimentation device for a comprehensive laboratory wastewater treatment system according to claim 1, characterized in that, The outer wall of the rack (712) is provided with a first tooth groove, which meshes with the first spur gear (711).

7. The flocculation and sedimentation device for a comprehensive laboratory wastewater treatment system according to claim 3, characterized in that, The outer wall of the connecting block (803) fits against the inner wall of the connecting groove (802), and the fixing block (804) extends out of the connecting block (803) and is provided with a second inclined surface.

8. The flocculation and sedimentation device for a comprehensive laboratory wastewater treatment system according to claim 3, characterized in that, The outer wall of the push plate (806) is provided with a second threaded hole, which matches the second threaded rod (807).

9. The flocculation and sedimentation device for a comprehensive laboratory wastewater treatment system according to claim 3, characterized in that, One end of the outer wall of the reinforcing block (814) is in contact with the inner wall of the reinforcing groove (809). The reinforcing block (814) is provided with a third inclined surface at one end of the inner cavity of the connecting groove (802). The outer walls of the crossbar (812) and the reinforcing block (814) are both provided with a second tooth groove, which meshes with the second spur gear (813).

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