Composite constructed wetland purification filter material
By designing an adjustable mesh bag structure, the problem that the filter mesh frame in the existing artificial wetland purification system cannot be adapted to wet areas in different sizes is solved, and flexible adaptation of filter materials and efficient operation of the system are achieved.
Patent Information
- Application Number
- CN202421814826.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-30
AI Technical Summary
In the existing artificial wetland purification system, the filter grid cannot be adapted to wet area blocks of different sizes, resulting in limited system versatility and practicality.
A composite artificial wetland purification filter material is designed, including the filter material body, mesh bag and wet area block. The mesh bag is composed of a fixing frame and a filter mesh. The fixing frame includes adjustable short rods, long rods and vertical rods. Through the design of sliders and slide chutes, the size of the short rods can be accurately adjusted to accommodate wet area blocks of different sizes.
This design allows the filter material to be flexible to adapt to wet area blocks of different sizes, improves the versatility and practicality of the system, ensures the stability and durability of the mesh bag during use, and simplifies the replacement and cleaning process of the filter material.
Smart Images
Figure CN222907724U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of purification of constructed wetlands, in particular to a composite constructed wetland purification filter material. Background Art
[0002] Purification filter materials in constructed wetlands play an important role. Through multiple action mechanisms such as physical, chemical, and biological ones, they can effectively purify sewage.
[0003] In current constructed wetlands, during the initial stage of filling purification filter materials, the wetland is divided into several blocks, and then the purification filter materials are filled. Since the filter materials need to be replaced later, people put the filter materials into a filter mesh frame, and during the later recovery and treatment, they can directly lift out the filter mesh frame. However, due to the different sizes of the wetland blocks and the standard size of the filter mesh frame during production, the filter mesh frame cannot adapt to various wetland blocks of different sizes. Summary of the Utility Model
[0004] Based on this, the purpose of the utility model is to provide a composite constructed wetland purification filter material to solve the technical problem that the filter mesh frame cannot adapt to various wetland blocks of different sizes.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A composite constructed wetland purification filter material, including a filter material body, a mesh bag, and a wetland block. The mesh bag is composed of a fixing frame and a filter mesh. The fixing frame includes short rods, long rods, and vertical rods. A filter mesh is fixed between the short rods, long rods, and vertical rods. The short rod includes a first telescopic rod and a second telescopic rod.
[0006] By adopting the above technical solution, the filter material body can flexibly adapt to wetland blocks of different sizes. This design enables the filter material to easily adapt to various wetland environments, improving the versatility and practicality of the system.
[0007] Further, the filter material body is located inside the mesh bag. The filter material body is composed of an anti-seepage layer, a gravel layer, a zeolite layer, and a ceramsite layer. The anti-seepage layer, gravel layer, zeolite layer, and ceramsite layer are arranged in sequence from bottom to top.
[0008] By adopting the above technical solution, each layer of the filter material can play its specific function, thereby maximizing the efficiency of sewage purification. The anti-seepage layer can effectively prevent sewage from seeping into the underlying soil or water body, protecting groundwater from pollution.
[0009] Further, a "convex"-shaped sliding strip is fixed on one side of the second telescopic rod. A sliding groove adapted to the sliding of the sliding strip is formed on the opposite side of the first telescopic rod. The first telescopic rod and the second telescopic rod are movably arranged.
[0010] By adopting the above technical solution, the design of the sliding bar and the sliding groove enables the relative position between the telescopic rods to be precisely adjusted, thereby ensuring that the net pocket can accurately adapt to wetland blocks of different sizes. The tight fit between the sliding bar and the sliding groove guarantees the stability of the telescopic rods during the adjustment process, avoiding deformation or damage of the net pocket caused by improper adjustment.
[0011] Furthermore, the short rod, the long rod, and the vertical rod are fixedly welded together, and the filter screen is welded between the short rod, the long rod, and the vertical rod.
[0012] By adopting the above technical solution, the overall structure of the net pocket is ensured to be stable and not easily deformed or damaged. The welded filter screen can firmly adhere to the fixing frame, preventing displacement or detachment during use.
[0013] Furthermore, a number of net pockets with the same specifications are neatly arranged in the wetland block, and the net pockets are made of stainless steel.
[0014] By adopting the above technical solution, stainless steel has excellent corrosion resistance and can resist the erosion of various chemical substances and microorganisms in water, ensuring that the net pocket will not rust or be corroded in other forms during long-term use. Stainless steel has high strength and toughness and can withstand large tensile and compressive forces, ensuring that the net pocket maintains a stable shape and structure in the wetland environment.
[0015] Furthermore, the first telescopic rod and the second telescopic rod form a movable short rod, and four movable short rods are provided in each net pocket.
[0016] By adopting the above technical solution, the four short rods are connected to other fixed rods by welding or other fixing methods to jointly form the framework of the net pocket.
[0017] In summary, the present utility model mainly has the following beneficial effects:
[0018] 1. In the present utility model, by placing the filter media body into the net pocket, the net pocket adopts adjustable short rods. After being welded and fixed, the net pocket is divided into two parts. By pulling the long rods on both sides, the size of the short rods can be adjusted. The staff can arrange several net pockets in sequence on the wetland block, and then use the adjustable net pocket for the last net pocket with an inappropriate size. The size of the short rods of the net pocket is adjustable, so as to adapt to different wetland blocks.
[0019] 2. By producing standard net pockets and cooperating with a small number of adjustable net pockets, the present utility model is beneficial to the efficient production of the factory, improves production efficiency, and solves the problem of the adaptation of the net pocket to the wetland block, facilitating the replacement and cleaning of the filter media in the later stage. Description of the Drawings
[0020] Figure 1This is a schematic diagram of the structure of the net bag of the utility model;
[0021] Figure 2 It is a schematic diagram of the short rod structure of the utility model;
[0022] Figure 3 This is a schematic diagram of the filter material body structure of the utility model;
[0023] Figure 4 This is a schematic diagram of the short rod adjustment structure of the utility model;
[0024] Figure 5 It is a schematic diagram of the side cross-sectional structure of the short rod of the utility model;
[0025] Figure 6 It is a schematic diagram of the wetland block structure of the utility model.
[0026] In the figure: 1. filter material body; 11. anti-seepage layer; 12. gravel layer; 13. zeolite layer; 14. expanded clay layer; 2. net bag; 3. fixing frame; 31. short rod; 32. long rod; 33. vertical rod; 311. first telescopic rod; 312. second telescopic rod; 4. filter screen; 5. wetland block. DETAILED DESCRIPTION
[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.
[0028] In the description of the present invention, it should be noted that the terms "center", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.
[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0030] The following will describe the embodiments of the present utility model according to its overall structure.
[0031] Embodiment 1:
[0032] A composite artificial wetland purification filter material, as Figure 1 , Figure 3 , Figure 6 shown, includes a filter material body 1, a net bag 2 and a wetland block 5. The net bag 2 is composed of a fixing frame 3 and a filter screen 4. The fixing frame 3 includes a short rod 31, a long rod 32 and a vertical rod 33. A filter screen 4 is fixed between the short rod 31, the long rod 32 and the vertical rod 33. The short rod 31 includes a first telescopic rod 311 and a second telescopic rod 312. The filter material body can flexibly adapt to wetland blocks 5 of different sizes. This design enables the filter material to easily adapt to various wetland environments, improving the versatility and practicality of the system. The combined use of the standard-size net bag 2 and the adjustable net bag 2 not only ensures the high efficiency of factory production but also makes the later maintenance operation more convenient. When it is necessary to replace or clean the filter material, only the net bag needs to be taken out without large-scale modification of the entire wetland block.
[0033] Please refer to Figure 3 . The filter material body 1 is located inside the net bag 2. The filter material body 1 is composed of an anti-seepage layer 11, a gravel layer 12, a zeolite layer 13 and a ceramsite layer 14. The anti-seepage layer 11, the gravel layer 12, the zeolite layer 13 and the ceramsite layer 14 are arranged in sequence from bottom to top, enabling each layer of filter material to play its specific function, thereby maximizing the efficiency of sewage purification. The anti-seepage layer 11 can effectively prevent sewage from seeping into the underlying soil or water body, protecting groundwater from pollution. The gravel layer 12 has a large porosity and can filter out large particulate impurities in the sewage, playing a preliminary filtering role. The zeolite layer 13 has good adsorption performance and can effectively remove pollutants such as heavy metal ions and ammonia nitrogen in the sewage. The ceramsite layer 14 further removes pollutants such as organic matter and nutrient salts in the sewage through the biofilm on its surface.
[0034] Please refer to Figure 5 . On one side of the second telescopic rod 312, a "convex"-shaped slide bar is fixed. On the opposite side of the first telescopic rod 311, there is a slide groove adapted to slide with the slide bar. The first telescopic rod 311 and the second telescopic rod 312 are movably arranged. The design of the slide bar and the slide groove enables the relative position between the telescopic rods to be precisely adjusted, thereby ensuring that the net bag can precisely adapt to wetland blocks 5 of different sizes. The tight fit of the slide bar and the slide groove ensures the stability of the telescopic rods during adjustment, avoiding deformation or damage of the net bag caused by improper adjustment. By adjusting the length of the telescopic rods, the net bag can adapt to wetland blocks of different shapes and sizes, increasing its scope of application and flexibility.
[0035] Please refer to Figure 1 , Figure 2 ,Figure 4 , the short rod 31, the long rod 32 and the vertical rod 33 are fixedly welded together, and the filter screen 4 is welded between the short rod 31, the long rod 32 and the vertical rod 33, ensuring the overall structure of the mesh bag 2 is stable and not easily deformed or damaged. The welded filter screen 4 can firmly adhere to the fixing frame, preventing displacement or detachment during use. The mesh bag 2 can withstand large tensile and compressive forces and is suitable for various complex environments. The welded filter screen 4 has better wear resistance and corrosion resistance and can maintain its filtering performance for a long time.
[0036] Embodiment 2:
[0037] Please refer to Figure 6 , several mesh bags 2 of the same specification are neatly arranged in the wetland block 5. The mesh bags 2 are made of stainless steel. The stainless steel material has excellent corrosion resistance and can resist the erosion of various chemical substances and microorganisms in water, ensuring that the mesh bags 2 will not rust or be corroded in other forms during long-term use. The stainless steel material has high strength and toughness and can withstand large tensile and compressive forces, ensuring that the mesh bags 2 maintain a stable shape and structure in the wetland environment. The stainless steel material is an environmentally friendly metal material that can be recycled, reducing resource waste. At the same time, the filter media system purifies water quality through efficient filtration, helping to protect the wetland ecological environment and achieve sustainable development.
[0038] Please refer to Figure 2 , clamping blocks for clamping are provided at the ends of the first telescopic rod 311 and the second telescopic rod 312 to prevent the first telescopic rod 311 and the second telescopic rod 312 from detaching. The first telescopic rod 311 and the second telescopic rod 312 form a movable short rod 31. Four movable short rods 31 are provided in each mesh bag 2. The four short rods 31 are connected to other fixed rods such as the long rod 32 and the vertical rod 33 by welding or other fixing methods to jointly form the frame of the mesh bag 2. Since the short rod 31 is movable, the size and shape of the mesh bag 2 can be adjusted according to needs to meet the requirements of different wetland blocks 5 or filter media bodies 1.
[0039] The implementation principle of the present utility model is as follows: According to the size and treatment requirements of the wetland, an appropriate amount of composite artificial wetland purification filter media is prepared, including an anti-seepage layer 11, a gravel layer 12, a zeolite layer 13, a ceramsite layer 14, etc. The selected fillers should have good physical and chemical properties, such as stability, porosity, water permeability, etc. According to the size of the wetland block 5, a corresponding number of standard-sized mesh bags 2 and an appropriate amount of adjustable mesh bags 2 are selected. The mesh bags 2 are laid at the bottom of the wetland block, and the mesh bags 2 are arranged in sequence on the wetland block 5 to ensure that the mesh bags 2 are closely fitted to each other without gaps. The last mesh bag 2 with an inappropriate size is an adjustable mesh bag, and the short rod size of the mesh bag 2 is adjustable to adapt to the last area of the wetland block. Then, the anti-seepage layer 11 is filled into the mesh bag 2, and in the order from bottom to top, the gravel layer 12, the zeolite layer 13, and the ceramsite layer 14 are filled in sequence. Each layer should be evenly laid to ensure that the thickness of the filter media is uniform without voids. Regularly check the state of the filter media, including the thickness, color, smell, etc. of the filter media, to judge whether replacement or cleaning is required. When the filter media is severely contaminated, blocked, etc., the filter media needs to be replaced in time. At this time, only the mesh bag 2 that needs to be replaced is taken out of the wetland block, and a new mesh bag 2 filled with filter media is replaced. For the reusable mesh bag, after replacing the filter media, it can be cleaned for the next use. When cleaning, the surface and inside of the mesh bag 2 can be rinsed with clean water to remove the remaining dirt and impurities.
[0040] Although the embodiments of the present utility model have been shown and described, the specific embodiments are only explanations of the present utility model and do not limit the utility model. The specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art can make modifications, substitutions, and variations that do not contribute creatively to the embodiments according to needs, but as long as they are within the scope of the claims of the present utility model, they are protected by the patent law.
Claims
1. A composite artificial wetland purification filter material, characterized in that: The invention comprises a filter material body (1), a net bag (2) and a wetland block (5); the net bag (2) is composed of a fixing frame (3) and a filter screen (4); the fixing frame (3) comprises a short rod (31), a long rod (32) and a vertical rod (33); a filter screen (4) is fixed between the short rod (31), the long rod (32) and the vertical rod (33); the short rod (31) comprises a first telescopic rod (311) and a second telescopic rod (312).
2. The composite artificial wetland purification filter material according to claim 1, characterized in that: The filter material body (1) is located in the net bag (2), and the filter material body (1) is composed of an anti-seepage layer (11), a gravel layer (12), a zeolite layer (13) and a ceramsite layer (14), and the anti-seepage layer (11), the gravel layer (12), the zeolite layer (13) and the ceramsite layer (14) are arranged in sequence from bottom to top.
3. The composite artificial wetland purification filter material according to claim 1, characterized in that: A "convex"-shaped sliding bar is fixed on one side of the second telescopic rod (312), and a sliding groove adapted to slide with the sliding bar is provided on the opposite side of the first telescopic rod (311), and the first telescopic rod (311) and the second telescopic rod (312) are movably arranged.
4. The composite artificial wetland purification filter material according to claim 1, characterized in that: The short rod (31), the long rod (32) and the vertical rod (33) are welded and fixed, and the filter screen (4) is welded between the short rod (31), the long rod (32) and the vertical rod (33).
5. The composite artificial wetland purification filter material according to claim 1, characterized in that: A plurality of net bags (2) of the same specifications are neatly arranged in the wetland block (5), and the net bags (2) are made of stainless steel.
6. The composite artificial wetland purification filter material according to claim 1, characterized in that: The first telescopic rod (311) and the second telescopic rod (312) form a movable short rod (31), and four movable short rods (31) are provided in each net bag (2).