Multi-stage composite sewage filter

Abstract

The utility model relates to a multi-stage composite sewage filter in the technical field of sewage filtration, which comprises a fixed frame, and a plurality of filter plates I are fixedly connected in the fixed frame; when the sewage treatment device is used, impurities with different sizes in sewage are filtered step by step through the first filter plates with different pore sizes, the cleanliness of the sewage is improved, meanwhile, part of the filtered and separated impurities can roll onto the second filter plate along the first filter plate, so that the impurities are separated from the first filter plate, and the sewage treatment effect is improved. When the impurities are taken out, a movable rod can be rotated to drive a second filter plate and an inclined plate to rotate upwards by 90 degrees, the impurities on the second filter plate are made to fall into a collecting box, cleaning of the impurities is conveniently completed in cooperation with washing of water flow, time is saved, convenience is achieved, and the practicability is high. The sewage treatment efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to a multi-stage composite sewage filter, and more particularly to a multi-stage composite sewage filter applied in the field of sewage filtration. Background Technology

[0002] Filtration is a common method of wastewater treatment. Filtering wastewater effectively removes harmful substances, protecting the environment and human health. Wastewater filtration systems can bring treated water up to certain water quality standards, thus enabling water resource reuse. This not only helps alleviate water shortages but also improves water resource utilization efficiency.

[0003] Chinese patent CN114797235B discloses a composite sewage filter, comprising two drainage pipes; a connecting assembly disposed on the two drainage pipes; an annular filter screen disposed inside the connecting assembly; and a transmission assembly disposed on one side of the annular filter screen and located inside the connecting assembly. Through the cooperation of the connecting assembly, the annular filter screen, and the transmission assembly, the flow of sewage drives the transmission assembly to operate. The operation of the transmission assembly causes the annular filter screen to move repeatedly and change its shape repeatedly, reducing the accumulation rate of impurities in the sewage on the annular filter screen. This reduces the phenomenon of impurities clogging the annular filter screen, improves the service life of the annular filter screen and the drainage pipes, and increases the filtration efficiency of the annular filter screen. Furthermore, this invention does not require an external power source, utilizing the power of the sewage itself to drive the transmission assembly, thus saving energy.

[0004] The aforementioned filter uses a transmission component to drive the annular filter screen to move repeatedly and change its shape, reducing the accumulation rate of impurities in the wastewater on the annular filter screen. However, as the usage time increases, the amount of impurities accumulated on the filter screen will continue to increase, which will affect the speed at which the filter screen filters wastewater. Furthermore, cleaning the impurities on the filter screen will require more downtime, thus reducing the efficiency of wastewater treatment. Utility Model Content

[0005] In view of the above-mentioned prior art, the technical problem to be solved by this utility model is that existing sewage filters are inconvenient for personnel to filter sewage.

[0006] To solve the above problems, this utility model provides a multi-stage composite sewage filter, including a fixed frame, with multiple filter plates fixedly connected inside the fixed frame, a water tank fixedly connected to the lower end of the fixed frame, an inlet at the upper end of the water tank, multiple movable rods with handles rotatably connected inside the fixed frame, filter plates fixedly connected to the outer ends of the movable rods, inclined plates fixedly connected to the upper ends of the filter plates, a circular block fixedly connected to the outer end of the movable rods, a limiting tube movably inserted inside the circular block, and multiple limiting grooves movably inserted into the limiting tubes at the outer end of the fixed frame.

[0007] In the aforementioned multi-stage composite sewage filter, not only is the probability of impurities clogging the filter pores reduced, but it also makes it easier for personnel to remove the impurities.

[0008] As a further improvement of this application, filter plate two is rotatably connected to the fixed frame, and the side end of filter plate two is in contact with the side end of filter plate one.

[0009] As a further improvement of this application, a water intake pipe with a sealing cap is fixedly connected to the side end of the water tank. From top to bottom, the aperture of multiple filter plates decreases sequentially, and the apertures of adjacent filter plates are the same.

[0010] As a further improvement of this application, a collection box is placed against the side of the water tank, and one end of the limiting tube extends from inside the round block to the outside.

[0011] As another improvement of this application, a rectangular block is fixedly connected to each of the two sides of the collection box, and an L-shaped block is movably fitted on the outer end of the rectangular block. The side end of the L-shaped block is in contact with the water tank. A pair of fixed blocks are fixedly connected to the side end of the water tank. A vertical pipe is fixedly connected to the upper end of the fixed block, and a circular groove is opened at the lower end of the L-shaped block for movably inserting into the vertical pipe.

[0012] As a further improvement to this application, the inner wall of the circular groove is coated with a magnetic coating one, and the outer end of the vertical tube is coated with a magnetic coating two.

[0013] In summary, this application, when in use, filters impurities of different sizes in wastewater through filter plates of different pore sizes in stages, improving the cleanliness of the wastewater. At the same time, some of the impurities separated by filtration can roll down filter plate one to filter plate two, so that the impurities are separated from filter plate one, reducing the probability of impurities clogging the filter pores on filter plate one and ensuring the smooth operation of filtration. When removing impurities, the lever can be rotated to rotate filter plate two and the inclined plate upward by 90 degrees, causing the impurities on filter plate two to fall into the collection box. Combined with the rinsing of water flow, the impurities are easily cleaned, which is time-saving and convenient, and greatly improves the efficiency of wastewater treatment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the first and second embodiments of this application;

[0015] Figure 2 This is a perspective view of a filter plate according to the first embodiment of this application;

[0016] Figure 3 This is a schematic diagram of the rotation of the filter plate 2 according to the first embodiment of this application;

[0017] Figure 4This is a perspective view of the water tank according to the first embodiment of this application;

[0018] Figure 5 This is a three-dimensional schematic diagram of the vertical pipe in the second embodiment of this application;

[0019] Figure 6 This is a schematic cross-sectional view of the filter plate according to the second embodiment of this application.

[0020] Explanation of the labels in the diagram:

[0021] 1. Fixed frame; 2. Filter plate one; 3. Water tank; 4. Water inlet; 5. Moving rod; 6. Filter plate two; 7. Inclined plate; 8. Circular block; 9. Magnetic coating one; 10. Magnetic coating two; 11. Limiting tube; 12. Limiting groove; 13. Collection box; 14. Water intake pipe; 15. Rectangular block; 16. L-shaped block; 17. Fixed block; 18. Vertical pipe; 19. Circular groove. Detailed Implementation

[0022] The two embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0023] First implementation method:

[0024] Figure 1-4 A multi-stage composite sewage filter is shown, including a fixed frame 1. Multiple filter plates 2 are fixedly connected inside the fixed frame 1. A water tank 3 is fixedly connected to the lower end of the fixed frame 1. A water inlet 4 is opened at the upper end of the water tank 3. Multiple moving rods 5 with handles are rotatably connected inside the fixed frame 1. A filter plate 6 is fixedly connected to the outer end of the moving rod 5. An inclined plate 7 is fixedly connected to the upper end of the filter plate 6. The inclined plate 7 can intercept the filtered sewage and impurities. A circular block 8 is fixedly connected to the outer end of the moving rod 5. A limiting tube 11 is movably inserted inside the circular block 8. Multiple limiting grooves 12 are opened at the outer end of the fixed frame 1 and are movably inserted into the limiting tube 11. In the horizontal state, the distance between an adjacent pair of filter plates 6 is greater than the length of the filter plates 6 so that the filter plates 6 can rotate upward smoothly.

[0025] The filter plate 26 is rotatably connected to the fixed frame 1. The side end of the filter plate 26 is in contact with the side end of the filter plate 12. The side end of the water tank 3 is fixedly connected to the water intake pipe 14 with a sealing cover. From top to bottom, the aperture of multiple filter plates 12 decreases sequentially. The aperture of adjacent filter plates 12 and filter plate 26 is the same. The collection box 13 is placed against the side end of the water tank 3. One end of the limiting tube 11 extends out from the round block 8 and extends to the outside.

[0026] The application is used in the following steps:

[0027] Step 1: Filtration. Wastewater is injected into the frame 1. The uppermost filter plate 2 performs the initial filtration, separating larger impurities from the wastewater. Simultaneously, due to the inclined design of filter plate 2, the downward flow of wastewater has a certain flushing effect on the impurities on filter plate 2, causing some impurities to roll onto filter plate 6. This prevents impurities from accumulating excessively on filter plate 2, reducing the probability of impurities clogging the filter pores. Afterward, the wastewater will sequentially pass through filter plate 2 in the middle and the lowermost filter plate 2, utilizing these filters to further filtration different impurities in the wastewater. Impurities of different sizes are filtered in stages to further improve the cleanliness of the wastewater. At the same time, some of the filtered impurities can roll from filter plate 1 2 to filter plate 2 6 in contact with it (the filter holes on filter plate 1 2 and the filter holes on filter plate 2 6 in contact with it have the same diameter), so that the impurities stay on filter plate 2 6 for a certain period of time to filter the wastewater adhering to the impurities and reduce the amount of water adhering to the impurities. Then the wastewater enters the water tank 3 through the inlet 4. Finally, the water outlet pipe 14 is opened to take out the wastewater in the water tank 3 for further processing.

[0028] Step Two; Cleaning: When cleaning impurities on filter plate 26, pull one end of the limiting tube 11 out of the limiting groove 12 to remove the limiting effect of the limiting tube 11 on the round block 8 and the moving rod 5. Then, hold the handle and rotate the moving rod 5 and all its components upwards by 90 degrees (in conjunction with...). Figure 3 (As shown), this allows impurities on filter plate 6 to easily fall into collection box 13. Some impurities that do not fall off can be washed into collection box 13 by water flow. After collection, rotate lever 5 to rotate filter plate 6 to... Figure 1 The moving rod 5 and the filter plate 6 are fixed in the middle position, and the limiting tube 11 is inserted into the limiting groove 12 to fix the moving rod 5 and the filter plate 6, thereby completing the cleaning of impurities on the filter plate 6. The operation steps are simple and time-saving. Finally, the wastewater can be filtered.

[0029] When impurities remain on filter plate 2, water can be poured into it to flush it, so that the impurities remaining on filter plate 2 are flushed onto filter plate 6. The water will pass through filter plate 2 and enter the water tank 3. At the same time, it can also clean filter plate 2 and improve its cleanliness. Finally, rotate filter plate 6 to move the impurities flushed down from filter plate 2 into the collection box 13. (Supplementary explanation: Generally speaking, filter plate 2 can be restored to cleanliness after being flushed with water. However, after long-term use, a small amount of impurities will inevitably clog the filter holes of filter plate 2, which is difficult to rinse, especially filter plate 2 located on the lower side. At this time, it is necessary to use the gap between the adjacent inclined plates 7 and manually use cleaning tools, such as cleaning brushes, to reach into the inside of the frame 1 to brush the surface of filter plate 2 and remove the impurities clogging the filter holes.)

[0030] In summary, when this application is used, it filters impurities of different sizes in wastewater step by step through filter plates 2 with different pore sizes, thereby improving the cleanliness of the wastewater. At the same time, some of the impurities separated by filtration can roll down filter plates 2 to filter plates 6, so that the impurities are separated from filter plates 2, reducing the probability of impurities clogging the filter pores on filter plates 2 and ensuring the smooth operation of filtration. When removing impurities, the lever 5 can be rotated to make filter plates 6 and inclined plates 7 rotate upward by 90 degrees, causing the impurities on filter plates 6 to fall into the collection box 13. With the rinsing of water flow, the impurities are easily cleaned, which is time-saving and convenient, and greatly improves the efficiency of wastewater treatment.

[0031] Second implementation method:

[0032] This embodiment adds the following structure based on the first embodiment, while the rest remains the same as the first embodiment, as detailed below:

[0033] Figure 5-6 Rectangular blocks 15 are fixedly connected to a pair of side ends of the collection box 13. An L-shaped block 16 is movably fitted onto the outer end of the rectangular block 15. The side end of the L-shaped block 16 is in contact with the water tank 3. A pair of fixed blocks 17 are fixedly connected to the side end of the water tank 3. A vertical tube 18 is fixedly connected to the upper end of the fixed block 17. A circular groove 19 is opened at the lower end of the L-shaped block 16, which is movably inserted into the vertical tube 18. A magnetic coating 9 is coated on the inner wall of the circular groove 19. A magnetic coating 10 is coated on the outer end of the vertical tube 18. After the L-shaped block 16 is fitted onto the vertical tube 18, the magnetic coating 9 and the magnetic coating 10 will be attracted together to improve the stability of the L-shaped block 16 on the vertical tube 18.

[0034] Once a certain amount of impurities have been collected in the collection box 13, the L-shaped block 16 needs to be moved upwards to separate it from the vertical pipe 18, thereby releasing the limiting effect on the rectangular block 15. Then, the collection box 13 is moved to separate it from the water tank 3 to clean the impurities inside. After cleaning, the collection box 13 is reset, and the L-shaped block 16 is then placed on the vertical pipe 18 and the rectangular block 15 to limit the rectangular block 15 and the collection box 13, thereby improving the stability of the collection box 13.

[0035] In light of current practical needs, the above-described embodiments adopted in this application are not limited to these. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. A multi-stage composite wastewater filter, comprising a frame (1), characterized in that: The fixed frame (1) is internally connected to multiple filter plates (2), the lower end of the fixed frame (1) is fixedly connected to a water tank (3), the upper end of the water tank (3) is provided with a water inlet (4), the fixed frame (1) is internally connected to multiple moving rods (5) with handles, the outer end of the moving rod (5) is fixedly connected to a filter plate (6), the upper end of the filter plate (6) is fixedly connected to an inclined plate (7), the outer end of the moving rod (5) is fixedly connected to a round block (8), the round block (8) is internally movably inserted with a limiting tube (11), and the outer end of the fixed frame (1) is provided with multiple limiting grooves (12) that are movably inserted with the limiting tube (11).

2. The multi-stage composite wastewater filter according to claim 1, characterized in that: The second filter plate (6) is rotatably connected to the fixed frame (1), and the side end of the second filter plate (6) is in contact with the side end of the first filter plate (2).

3. A multi-stage composite wastewater filter according to claim 2, characterized in that: The side end of the water tank (3) is fixedly connected to a water intake pipe (14) with a sealing cap. From top to bottom, the aperture of the multiple filter plates (2) decreases sequentially, and the apertures of adjacent filter plates (2) and filter plates (6) are the same.

4. A multi-stage composite wastewater filter according to claim 3, characterized in that: A collection box (13) is placed against the side of the water tank (3), and one end of the limiting tube (11) extends out from the round block (8) and out to the outside.

5. A multi-stage composite wastewater filter according to claim 4, characterized in that: A rectangular block (15) is fixedly connected to each of the two sides of the collection box (13). An L-shaped block (16) is movably fitted onto the outer end of the rectangular block (15). The side end of the L-shaped block (16) is in contact with the water tank (3). A pair of fixed blocks (17) are fixedly connected to the side end of the water tank (3). A vertical pipe (18) is fixedly connected to the upper end of the fixed block (17). A circular groove (19) is opened at the lower end of the L-shaped block (16) and is movably inserted into the vertical pipe (18).

6. A multi-stage composite wastewater filter according to claim 5, characterized in that: The inner wall of the circular groove (19) is coated with a magnetic coating one (9), and the outer end of the vertical tube (18) is coated with a magnetic coating two (10).

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