Multistage filtering structure for sewage treatment

Abstract

The utility model discloses a sewage treatment multistage filtering structure which comprises a shell, one end of the shell is connected with a water inlet, one end of the shell is connected with a water outlet, one end and the other end of the inner wall of the shell are connected with a plurality of groups of sliding rails, two groups of net plates are arranged in the shell, one ends and the other ends of the two groups of net plates are respectively provided with a sliding groove in a connected mode, and the sliding rails are arranged in the sliding grooves. The multiple sets of sliding grooves are connected with the corresponding sliding rails in a sliding mode. A plurality of groups of sliding rails are connected in the shell, the sliding chutes at the two ends of the screen plate move along the sliding rails until the screen plate is attached to one side of the shell, the installation can be completed, then the plate body is inserted into the opening body, the opening body is blocked to prevent sewage from flowing out of the opening body, and a proper number of screen plates, such as sewage with low impurity content and sewage with low impurity content, can be placed according to actual requirements. One or two groups of net plates can be placed to improve the circulation efficiency of sewage, and when the impurity content of the sewage is high, a plurality of groups of net plates can be mounted to improve the filtering effect, so that the applicability is relatively wide to a certain extent.

Description

Technical Field

[0001] This utility model relates to the technical field of wastewater treatment, and in particular to a multi-stage filtration structure for wastewater treatment. Background Technology

[0002] Wastewater treatment is a complex and important engineering project that involves a variety of technologies and processes. Its purpose is to remove pollutants from wastewater so that the treated water meets discharge or reuse standards.

[0003] The existing announcement number is CN218900958U, which discloses a multi-stage filtration structure for wastewater treatment. The structure includes a shell and fixed pipes. Fixed pipes are fixedly connected to both the upper and lower side walls of the shell, and these fixed pipes communicate with the shell. This invention, through the inclusion of a discharge mechanism and multiple filter screens, allows wastewater to enter the inner cavity of the shell through the upper fixed pipe. The multiple filter screens filter and separate solid impurities from the wastewater. Due to the inclined arrangement of the filter screens, solid impurities move towards one side of the circular pipe. A motor drives the spiral blades to rotate, transporting the solid impurities from the filter screen side into the inner cavity of the circular pipe, where they are discharged through the discharge pipe to a designated location. This achieves multi-stage filtration and separation of impurities, facilitating efficient wastewater treatment. This invention also offers advantages in terms of ease of discharge and maintenance.

[0004] While the aforementioned issues can be addressed by unscrewing the bolts to remove the fixing plate and allowing the mounting frame to be pulled out for maintenance of the filter screen inside, the fixed connection between the fixing plate and the mounting frame prevents flexible adjustment of the number of filter screens based on actual needs such as wastewater quality and treatment volume in practical applications. For example, when treating wastewater with low impurity content, fewer filtration stages may be needed, but the existing structure cannot reduce the number of filter screens to improve water flow efficiency. Conversely, when treating high-concentration wastewater with numerous impurities, it is not easy to add more filter screens to enhance the filtration effect, thus affecting the adaptability of the entire filtration structure to different operating conditions. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a multi-stage filtration structure for wastewater treatment.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A multi-stage filtration structure for wastewater treatment includes a housing, with an inlet connected to one end of the housing and an outlet connected to the other end. Multiple sets of slide rails are connected to one and the other ends of the inner wall of the housing. Two sets of mesh plates are provided inside the housing, with sliding grooves connected to one and the other ends of each set of mesh plates. The sliding grooves are slidably connected to corresponding slide rails. Multiple sets of openings are provided at one end of the housing, with plates inserted into each opening, and some of the plates respectively abutting against corresponding mesh plates.

[0008] Preferably, one end of the housing is connected to multiple sets of springs, one end of each set of springs is connected to a block, one end of the housing is connected to multiple sets of rods, the multiple sets of rods are slidably connected to corresponding blocks, and the multiple sets of blocks are respectively attached to corresponding plates.

[0009] Preferably, a lifting rod is connected between every two groups of the blocks.

[0010] Preferably, each of the multiple sets of plates is connected to a handle at one end.

[0011] Preferably, an observation window is embedded at one end of the housing.

[0012] Preferably, rubber pads are adhered to the contact points between the multiple sets of plates and the corresponding openings.

[0013] Preferably, a flow guide block is connected inside the housing, and the flow guide block is located below the water inlet.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. Through the cooperation between the slider, slide groove and screen plate, multiple sets of slide rails are connected inside the housing. Move the slide grooves at both ends of the screen plate along the slide rails until the screen plate is in contact with one side of the housing to complete the installation. Then insert the plate into the inlet and seal the inlet to prevent sewage from flowing out. An appropriate number of screen plates can be placed according to actual needs. For example, if the sewage has a low impurity content, one or two sets of screen plates can be placed to improve the sewage flow efficiency. When the sewage has a high impurity content, multiple sets of screen plates can be installed to improve the filtration effect. It has a wide range of applications to a certain extent.

[0016] 2. Through the cooperation between the spring, block, and plate, after the plate is inserted into the opening, the block moves down and fits against the plate under the action of the spring, which to a certain extent prevents the plate from slipping out of the opening and thus fixes the mesh plate to a certain extent. The design of the spring and block facilitates the disassembly of the mesh plate to a certain extent and has a wide range of applications. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a multi-stage filtration structure for wastewater treatment proposed in this utility model;

[0018] Figure 2 for Figure 1 Cross-sectional structural diagram of the middle plate, inlet, and outlet;

[0019] Figure 3 for Figure 2 A schematic diagram of the structure of the grille, groove, and rubber pad;

[0020] Figure 4 for Figure 1 Cross-sectional structural diagram of the middle block, spring and rod;

[0021] Figure 5 for Figure 4 A schematic diagram of the structure of the middle shell, guide block and slide rail.

[0022] In the diagram: 1. Shell; 2. Inlet; 3. Outlet; 4. Slide rail; 5. Mesh plate; 6. Slide groove; 7. Plate; 8. Spring; 9. Block; 10. Rod; 11. Lifting rod; 12. Observation window; 13. Handle; 14. Rubber pad; 15. Guide block; 16. Inlet. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Example 1, referring to Figures 1 to 5A multi-stage filtration structure for wastewater treatment includes a housing 1. One end of the housing 1 is connected to an inlet 2, and a flange is connected to the outer wall of the inlet 2, connecting the inlet 2 to an inlet pipe. Wastewater is injected into the housing 1 through the inlet 2. One end of the housing 1 is connected to an outlet 3, and a flange is connected to the outer wall of the outlet 3, connecting the outlet 3 to an outlet pipe flange. Filtered water is discharged through the outlet 3. Multiple sets of slide rails 4 are connected to one and the other ends of the inner wall of the housing 1. The slide rails 4 cooperate with the sliding grooves 6 to guide the installation of the screen plates 5 and also provide support for the screen plates 5. Two sets of screen plates 5 are provided inside the housing 1, with the mesh size of the screen plates 5 decreasing from top to bottom. Sliding grooves 6 are connected to one and the other ends of both sets of screen plates 5, and the multiple sets of sliding grooves 6 respectively connect to... The corresponding slide rails 4 are slidably connected. One end of the housing 1 has multiple sets of openings 16, and each set of openings 16 has a plate 7 inserted into it. The plate 7 is used to block the openings 16 and restrict the movement of the mesh plate 5. Some of the plates 7 are respectively attached to the corresponding mesh plates 5. The number of mesh plates 5 can be selected according to actual needs. If the sewage impurity content is low, fewer mesh plates 5 are installed to increase the sewage flow rate. If the sewage impurity content is high, more mesh plates 5 are installed to improve the filtration effect. To install the required number of mesh plates 5, the corresponding number of plates 7 are pulled out, the sliding grooves 6 on both sides of the mesh plate 5 are aligned with the corresponding slide rails 4, and the mesh plate 5 is pushed into the housing 1 until the mesh plate 5 is attached to one side of the housing 1, thus completing the installation of the mesh plate 5. To a certain extent, the number of mesh plates 5 can be adjusted according to actual needs, making it widely applicable.

[0025] In this embodiment, one end of the housing 1 is connected to multiple sets of springs 8, which exert a downward force on the blocks 9. Each set of springs 8 has a block 9 connected to one end. One end of the housing 1 is connected to multiple sets of rods 10, which are slidably connected to their respective blocks 9. Each set of blocks 9 is in contact with its corresponding plate 7. The rods 10 guide the movement of the blocks 9 and can also, to some extent, prevent the blocks 9 from moving due to impact from the plate 7, thus avoiding the problem of the plate 7's movement being unrestricted. After the plate 7 is inserted into the opening 16, the blocks 9 move downward under the action of the springs 8, restricting the plate 7's movement and, to some extent, fixing the mesh plate 5. This facilitates the user's disassembly and installation of the mesh plate 5 and has a wide range of applicability. A lifting rod 11 connects each pair of blocks 9, allowing both sets of blocks 9 to move simultaneously. This allows one user to complete the replacement of the mesh plate 5, further enhancing its applicability. Each set of plates 7 has a handle 13 connected to one end, making it easier to pull the plates 7. An observation window 12 is embedded at one end of the housing 1, allowing observation of the accumulation of impurities on the screen plate 5 to determine whether it needs replacement. Rubber gaskets 14 are adhered to the contact points between the multiple sets of plates 7 and their corresponding inlets 16, improving the sealing at these points and preventing sewage leakage. A flow guide block 15 is connected inside the housing 1, located below the inlet 2. The triangular flow guide block 15, with its inclined sides, guides the sewage, reducing its flow velocity and preventing prolonged direct impact of sewage on the screen plate 5, thus extending its service life.

[0026] The working principle of this embodiment is as follows: In use, the inlet 2 is connected to the inlet pipe to inject sewage into the housing 1, and the outlet 3 is connected to the outlet pipe to discharge the filtered water. Multiple sets of slide rails 4 are connected inside the housing 1, which can cooperate with the slide grooves 6 on both sides of the screen plate 5 to complete the installation of the screen plate 5. The number of screen plates 5 can be selected according to actual needs. For example, if the sewage impurity content is low, fewer screen plates 5 can be installed to increase the sewage flow rate; if the sewage impurity content is high, more screen plates 5 can be installed to improve the filtration effect. The mesh size of the screen plate 5 decreases from top to bottom, making it widely applicable. After the screen plate 5 is installed, the plate body 7 is inserted into the opening 16 to prevent sewage from flowing out of the opening 16. At the same time, the block 9 moves down under the action of the spring 8 to fit against the plate body 7, preventing the plate body 7 from sliding out of the opening 16, thus fixing the screen plate 5 to a certain extent. The design of the spring 8 and the block 9 facilitates the user's disassembly of the screen plate 5, making it widely applicable.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A multi-stage filtration structure for wastewater treatment, comprising a housing (1), characterized in that, One end of the housing (1) is connected to a water inlet (2), and the other end of the housing (1) is connected to a water outlet (3). One end and the other end of the inner wall of the housing (1) are connected to multiple sets of slide rails (4). Two sets of mesh plates (5) are provided inside the housing (1). One end and the other end of the two sets of mesh plates (5) are connected to slide grooves (6). The multiple sets of slide grooves (6) are slidably connected to the corresponding slide rails (4). One end of the housing (1) is provided with multiple sets of openings (16). Each set of openings (16) has a plate (7) inserted into it. Some of the plates (7) are respectively attached to the corresponding mesh plates (5).

2. The multi-stage filtration structure for wastewater treatment according to claim 1, characterized in that, One end of the housing (1) is connected to multiple sets of springs (8), and one end of each set of springs (8) is connected to a block (9). One end of the housing (1) is connected to multiple sets of rods (10), and the multiple sets of rods (10) are slidably connected to the corresponding blocks (9). The multiple sets of blocks (9) are respectively attached to the corresponding plates (7).

3. The multi-stage filtration structure for wastewater treatment according to claim 2, characterized in that, A lifting rod (11) is connected between each pair of blocks (9).

4. The multi-stage filtration structure for wastewater treatment according to claim 1, characterized in that, Each of the multiple sets of plates (7) has a handle (13) connected to one end.

5. The multi-stage filtration structure for wastewater treatment according to claim 1, characterized in that, An observation window (12) is embedded at one end of the housing (1).

6. The multi-stage filtration structure for wastewater treatment according to claim 1, characterized in that, Each of the multiple sets of plates (7) has a rubber pad (14) attached to the corresponding opening (16).

7. The multi-stage filtration structure for wastewater treatment according to claim 1, characterized in that, A flow guide block (15) is connected inside the housing (1), and the flow guide block (15) is located below the water inlet (2).

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