Filtering device for sewage treatment

Abstract

The invention relates to the technical field of sewage treatment, in particular to a filtering device for sewage treatment, which comprises a sedimentation tank, the upper end of the sedimentation tank is fixedly connected with a V-shaped filtering plate, the lower end of the sedimentation tank is fixedly provided with a discharge assembly, the sedimentation tank is connected with a reciprocating moving plate through a driving assembly, and the reciprocating moving plate is fixedly connected with the sedimentation tank. A fixing hole is formed in the reciprocating moving plate in a penetrating mode, a fixing rod is slidably connected into the fixing hole, a pushing plate is fixedly connected to the lower end of the fixing rod, a spring is fixedly connected between the pushing plate and the reciprocating moving plate, a moving hole is formed in the edge of one side of the filtering plate, and the driving assembly drives the pushing plate to remove impurities and prevent blocking. Sewage waste is reduced through the permeable design; when the motor rotates quickly, the roller is driven to act compositely to promote medicament mixing and shorten the precipitation time; when the motor rotates slowly, the roller rolls on the surface layer of the sediment, and the height of the water pumping pipe is adjusted in real time, so that the effluent purity is guaranteed and different sediment quantity requirements are met.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a filtration device for wastewater treatment. Background Technology

[0002] With the deepening of the concept of water environment protection, sewage treatment has become a key link in protecting water resources, especially in small and medium-sized scenarios (such as communities and industrial parks), where efficient and low-cost sewage pretreatment equipment is needed.

[0003] Current wastewater filtration devices have significant limitations: First, filter components are prone to clogging due to impurities, requiring frequent manual cleaning, which not only increases maintenance costs but also interrupts the treatment process and affects wastewater treatment efficiency. Second, uneven mixing of wastewater treatment agents and wastewater prolongs flocculation and sedimentation time, reduces pollutant removal efficiency, and hinders rapid water resource recovery. Third, the pumping process is difficult to precisely match the sediment height, easily drawing in sediment, resulting in low effluent purity or excessive residual clarified wastewater, which violates the water conservation concept and weakens the effectiveness of water environmental protection. In addition, most devices have dispersed functions, requiring multiple devices to work together, making operation complex and energy-intensive, which is difficult to meet the current water environmental protection needs for efficient, convenient, and precise wastewater treatment. Therefore, there is an urgent need to develop an integrated, adaptive wastewater filtration device, and it is necessary to propose a wastewater treatment filtration device. Summary of the Invention

[0004] To address the problems in the prior art, the present invention provides a filtration device for wastewater treatment.

[0005] The technical solution adopted by this invention to solve its technical problem is as follows: a filtration device for sewage treatment, including a sedimentation tank, a V-shaped filter plate fixedly connected to the upper end of the sedimentation tank, a discharge component fixedly installed at the lower end of the sedimentation tank, a reciprocating moving plate connected to the sedimentation tank via a drive component, a fixed hole through the reciprocating moving plate, a fixed rod slidably connected in the fixed hole, a push plate fixedly connected to the lower end of the fixed rod, a spring fixedly connected between the push plate and the reciprocating moving plate, a moving hole opened at one edge of the filter plate, a lifting hole through the reciprocating moving plate, a pumping pipe slidably connected in the lifting hole, the lower end of the pumping pipe passing through the moving hole and extending into the sedimentation tank, a first reciprocating screw fixedly connected to the outer wall of the pumping pipe inside the sedimentation tank, a moving block threadedly connected to the first reciprocating screw, a connecting rod fixedly connected to the moving block, and a roller fixedly connected to the connecting rod.

[0006] Specifically, the drive assembly includes a mounting frame, which is fixedly connected to the upper surface of the sedimentation tank. A second reciprocating screw is rotatably connected to the mounting frame via a bearing. The second reciprocating screw is threadedly connected to a reciprocating moving plate. A drive motor is fixedly mounted on the mounting frame via a fixing bracket. The output end of the drive motor is fixedly connected to the reciprocating screw.

[0007] Specifically, the discharge assembly includes a discharge pipe, which is fixedly installed on the outer wall of the sedimentation tank near the bottom. The discharge pipe is connected to the inner bottom of the sedimentation tank, and one end of the discharge pipe extends outside the sedimentation tank and is fixedly equipped with a control valve.

[0008] Specifically, a baffle plate is fixedly connected to the upper surface of the filter plate located on one side of the moving hole, and one side wall of the push plate abuts against the baffle plate.

[0009] Specifically, a limit block is fixedly connected to the end of the first reciprocating screw away from the water pipe. The first reciprocating screw is made of rigid plastic material and is arranged horizontally.

[0010] Specifically, the push plate is arranged in an inverted U-shape, and the lower end of the push plate abuts against the upper surface of the filter plate. The push plate is arranged as a water-permeable mesh plate.

[0011] Specifically, the spring is sleeved on the wall of the fixed rod, and the two ends of the spring abut against the upper surface of the push plate and the lower surface of the reciprocating moving plate, respectively.

[0012] The beneficial effects of this invention are as follows: The wastewater treatment filtration device of this invention, during use, uses a drive assembly to move a push plate back and forth along a V-shaped filter plate. Combined with continuous pressure from a spring, this ensures a tight fit between the two, automatically pushing filtered solid impurities to both sides to prevent clogging of the filter plate. Furthermore, the push plate employs a permeable mesh design to prevent wastewater from being pushed out. The reciprocating plate drives the pumping pipe and the first reciprocating screw to move synchronously. Combined with the roller's contact and rolling motion against the bottom of the tank, the drive block reciprocates on the screw, allowing the roller to achieve a "movement + rolling" composite action. This efficiently stirs the wastewater and chemicals, promoting a full reaction and shortening the flocculation and sedimentation time. After settling, the drive motor slowly rotates, causing the roller to roll along the surface of the sediment. Utilizing the real-time support of the roller for the sediment height, the lower end of the pumping pipe is automatically adjusted to ensure it remains in the clarified wastewater layer, effectively preventing sediment from being mixed in during extraction, ensuring effluent purity, and adapting to different sedimentation requirements. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1This is a front view of the external structure of a filtration device for wastewater treatment provided by the present invention; Figure 2 This invention provides a front internal sectional view of a wastewater treatment filtration device. Figure 3 This invention provides a rear internal sectional view of a wastewater treatment filtration device. Figure 4 A schematic diagram of the installation structure of a reciprocating moving plate of a wastewater treatment filtration device provided by the present invention; Figure 5 This invention provides a schematic diagram of the structure of a sedimentation tank in a wastewater treatment filtration device. Figure 6 This is a schematic diagram of the mounting base structure of the drum of a wastewater treatment filter device provided by the present invention.

[0015] In the diagram: 1. Sedimentation tank; 2. Filter plate; 3. Reciprocating moving plate; 4. Fixing hole; 5. Fixing rod; 6. Push plate; 7. Spring; 8. Moving hole; 9. Lifting hole; 10. Pumping pipe; 11. First reciprocating screw; 12. Moving block; 13. Connecting rod; 14. Roller; 15. Mounting bracket; 16. Second reciprocating screw; 17. Drive motor; 18. Control valve; 19. Baffle plate; 20. Limiting block; 21. Discharge pipe. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0017] like Figures 1-6 As shown, the present invention provides the following technical solution: Example 1: A filtration device for wastewater treatment includes a sedimentation tank 1. A V-shaped filter plate 2 is fixedly connected to the upper end of the sedimentation tank 1. A discharge assembly is fixedly installed at the lower end of the sedimentation tank 1. A reciprocating moving plate 3 is connected to the sedimentation tank 1 via a drive assembly. A fixing hole 4 is opened through the reciprocating moving plate 3. A fixing rod 5 is slidably connected in the fixing hole 4. A push plate 6 is fixedly connected to the lower end of the fixing rod 5. A spring 7 is fixedly connected between the push plate 6 and the reciprocating moving plate 3. A moving hole 8 is opened at one edge of the filter plate 2. A lifting hole 9 is opened through the reciprocating moving plate 3. A water pumping pipe 10 is slidably connected in the lifting hole 9. The lower end of the water pumping pipe 10 passes through the moving hole 8 and extends into the sedimentation tank 1. A first reciprocating screw 11 is fixedly connected to the outer wall of the water pumping pipe 10 inside the sedimentation tank 1. A moving block 12 is threadedly connected to the first reciprocating screw 11. A connecting rod 13 is fixedly connected to the moving block 12. A roller 14 is fixedly connected to the connecting rod 13. The drive assembly includes a mounting frame 15, which is fixedly connected to the upper surface of the sedimentation tank 1. A second reciprocating screw 16 is rotatably connected to the mounting frame 15 via a bearing. The second reciprocating screw 16 is threadedly connected to the reciprocating moving plate 3. A drive motor 17 is fixedly mounted on the mounting frame 15 via a fixing frame. The output end of the drive motor 17 is fixedly connected to the reciprocating screw 16. When using it, the following steps are included: Step 1: First, the pumping equipment's pipe is connected to the upper end of the pumping pipe 10. Then, sewage is transported into the sedimentation tank 1 through the external sewage pipe. The filter plate 2 will retain solid impurities in the sewage. After filtration, the sewage enters the sedimentation tank 1. At the same time, anionic polyacrylamide (PAM) + cationic chitosan (the weight ratio can be set to 3:1) can be added to the sedimentation tank 1. PAM can quickly flocculate suspended particles in sewage, and chitosan is naturally degradable and does not cause secondary pollution. The "ecological cementing network" formed by the two can enhance the stability of the flocs, prevent small particles from redispersing, and shorten the sedimentation time. At the same time, the antibacterial properties of chitosan can inhibit the reproduction of harmful microorganisms in sewage and improve the quality of effluent. The second step is to start the drive motor 17 to rotate rapidly. The drive motor 17 will drive the second reciprocating screw 16 to rotate, and the second reciprocating screw 16 will drive the reciprocating moving plate 3 to move back and forth. The reciprocating moving plate 3 will drive the push plate 6 to move back and forth through the fixed rod 5. At the same time, the reciprocating moving plate 3 will push the push plate 6 against the filter plate 2 through the spring 7, so that when the push plate 6 moves, it will push the impurities left on the surface of the filter plate 2 to both sides, so as to avoid the accumulation of impurities and affect the filtration of the filter plate 2. In the third step, when the reciprocating moving plate 3 moves, it will drive the first reciprocating screw 11 to move through the water pumping pipe 10. At this time, the sewage has just entered and has not accumulated sediment at the bottom of the tank. The roller 14 is against the bottom of the sedimentation tank 1. When the first reciprocating screw 11 drives the roller 14 to move, the roller 14 rolls at the bottom of the sedimentation tank 1. The roller 14 drives the moving block 12 to rotate, so that the moving block 12 moves back and forth on the first reciprocating screw 11. The roller 14 is driven by the moving block 12, so that the roller 14 performs bidirectional reciprocating motion, thereby mixing the sewage and sewage treatment agent. Step 4: After the sedimentation tank 1 is filled with sewage and the sewage treatment agents are mixed, the drive motor 17 can be stopped and the sewage can be allowed to stand until the mud and pollutants in the sewage flocculate and settle. Step 5: Start the drive motor 17 to rotate slowly, thereby driving the reciprocating moving plate 3 to move slowly back and forth. The reciprocating moving plate 3 drives the water suction pipe 10 and the first reciprocating screw 11 to move synchronously. The first reciprocating screw 11 drives the drum 14 to move slowly. The slowly moving drum 14 will slowly separate the water without stirring up the sediment. Because the water suction pipe 10 can be raised and lowered within the lifting hole 9, the first reciprocating screw 11 and the drum 14 will also be raised and lowered. And because the drum 14 is relatively wide, it can move slowly during the process. The roller 14 will rise upwards with the support of the sediment on one side, and then roll on the upper surface of the sediment. When the height of the roller 14 is stable, the roller 14 supports the first reciprocating screw 11 and the water pumping pipe 10. At this time, the water pumping equipment is started, and the water pumping equipment draws water from the sedimentation tank 1 through the water pumping pipe 10. The roller 14 drives the height of the water pumping pipe 10 to adjust in real time according to the height of the sediment, keeping the height of the water pumping pipe 10 above the sediment, so as to facilitate the drawing of water from the sedimentation tank 1 under different conditions.

[0018] Example 2: The technical solutions in this example that differ from Example 1 include: The discharge assembly includes a discharge pipe 21, which is fixedly installed on the outer wall of the sedimentation tank 1 near the bottom. The discharge pipe 21 is connected to the bottom of the sedimentation tank 1. One end of the discharge pipe 21 extends outside the sedimentation tank 1 and is fixedly installed with a control valve 18. After the upper layer of water is pumped out, the drive motor 17 can be started to rotate quickly, thereby driving the first reciprocating screw 11 and the drum 14 to move quickly, thereby stirring up the sediment at the bottom and mixing it with the remaining water. Then the control valve 18 can be opened, and the sediment can be discharged to the sediment treatment equipment for treatment through the discharge pipe 21.

[0019] A baffle plate 19 is fixedly connected to the upper surface of the filter plate 2 located on one side of the moving hole 8. The baffle plate 19 blocks impurities on the filter plate 2, preventing them from falling into the sedimentation tank 1 through the moving hole 8. One side wall of the pushing plate 6 abuts against the baffle plate 19. A limiting block 20 is fixedly connected to the end of the first reciprocating screw 11 away from the water pumping pipe 10. The limiting block 20 limits the first reciprocating screw 11, preventing the moving block 12 from detaching through the port of the first reciprocating screw 11. The first reciprocating screw 11 is made of hard plastic material, making it lightweight and easy to be supported by the roller 14. A reciprocating screw 11 is horizontally positioned, and a push plate 6 is inverted U-shaped with its lower end abutting against the upper surface of the filter plate 2. The push plate 6 is a permeable mesh plate. When the push plate 6 pushes impurities, the residual impurities and the sewage left by the filter will be filtered and retained by the push plate 6, thus preventing a large amount of sewage from being pushed outward by the push plate 6. A spring 7 is sleeved on the wall of the fixed rod 5, and the two ends of the spring 7 abut against the upper surface of the push plate 6 and the lower surface of the reciprocating moving plate 3, respectively. The spring 7 pushes the push plate 6 downward under the support of the reciprocating moving plate 3, so that the lower end of the push plate 6 always abuts against the filter plate 2.

[0020] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filtration device for wastewater treatment, comprising a sedimentation tank (1), wherein a V-shaped filter plate (2) is fixedly connected to the upper end of the sedimentation tank (1), and a discharge assembly is fixedly installed at the lower end of the sedimentation tank (1), characterized in that, The sedimentation tank (1) is connected to a reciprocating moving plate (3) via a drive assembly. A fixing hole (4) is provided through the reciprocating moving plate (3). A fixing rod (5) is slidably connected in the fixing hole (4). A push plate (6) is fixedly connected to the lower end of the fixing rod (5). A spring (7) is fixedly connected between the push plate (6) and the reciprocating moving plate (3). A moving hole (8) is provided at one edge of the filter plate (2). A lifting hole is provided through the reciprocating moving plate (3). (9) A water pumping pipe (10) is slidably connected inside the lifting hole (9). The lower end of the water pumping pipe (10) passes through the moving hole (8) and extends into the sedimentation tank (1). A first reciprocating screw (11) is fixedly connected to the outer wall of the water pumping pipe (10) inside the sedimentation tank (1). A moving block (12) is threadedly connected to the first reciprocating screw (11). A connecting rod (13) is fixedly connected to the moving block (12). A roller (14) is fixedly connected to the connecting rod (13).

2. The wastewater treatment filtration device according to claim 1, characterized in that: The drive assembly includes a mounting frame (15), which is fixedly connected to the upper surface of the sedimentation tank (1). A second reciprocating screw (16) is rotatably connected to the mounting frame (15) via a bearing. The second reciprocating screw (16) is threadedly connected to the reciprocating moving plate (3). A drive motor (17) is fixedly mounted on the mounting frame (15) via a fixing frame. The output end of the drive motor (17) is fixedly connected to the reciprocating screw (16).

3. The wastewater treatment filtration device according to claim 1, characterized in that: The discharge assembly includes a discharge pipe (21), which is fixedly installed on the outer wall of the sedimentation tank (1) near the bottom. The discharge pipe (21) is connected to the inner bottom of the sedimentation tank (1). One end of the discharge pipe (21) extends to the outside of the sedimentation tank (1) and is fixedly installed with a control valve (18).

4. A filtration device for wastewater treatment according to claim 1, characterized in that: A baffle plate (19) is fixedly connected to the upper surface of the filter plate (2) located on one side of the moving hole (8), and one side wall of the push plate (6) abuts against the baffle plate (19).

5. A filtration device for wastewater treatment according to claim 1, characterized in that: The end of the first reciprocating screw (11) away from the water pipe (10) is fixedly connected to a limit block (20). The first reciprocating screw (11) is made of hard plastic material and is arranged horizontally.

6. A filtration device for wastewater treatment according to claim 1, characterized in that: The push plate (6) is arranged in an inverted U-shape, and the lower end of the push plate (6) abuts against the upper surface of the filter plate (2). The push plate (6) is arranged as a water-permeable mesh plate.

7. A filtration device for wastewater treatment according to claim 1, characterized in that: The spring (7) is sleeved on the wall of the fixed rod (5), and the two ends of the spring (7) abut against the upper surface of the push plate (6) and the lower surface of the reciprocating moving plate (3), respectively.

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