A lateral flow fishbone inclined plate assembly and inclined plate sedimentation tank

Abstract

The application discloses a lateral flow fishbone-shaped inclined plate assembly and an inclined plate sedimentation tank. The inclined plate assembly comprises a fishbone support, an inclined plate connecting piece and an inclined plate. The inclined plate is in the form of a flat plate. The mounting portion of the inclined plate connecting piece is in the form of a long and thin plate and is arranged in an inclined manner. The upper end of the inclined plate is mounted on the mounting portion. An extension portion is arranged on the lower side of the mounting portion. A washing assembly for washing the inclined plate is mounted on the lower end of the extension portion. The fishbone support is arranged in a vertical arrangement. A plurality of pairs of inclined plate connecting pieces are arranged along the length direction of the fishbone support. Each pair of inclined plate connecting pieces is oppositely arranged on the two sides of the fishbone support. Each pair of inclined plate connecting pieces is connected with the fishbone support through the connecting portion thereof. The lower end of the mounting portion is inclined towards the direction away from the fishbone support. The application adopts a unique inclined plate structure and a fishbone-shaped inclined plate assembly, and is provided with a washing assembly for effectively washing the inclined plate. The application effectively increases the allowable length of the inclined plate while ensuring the structural stability of the inclined plate assembly and the inclined plate module, reduces the maintenance interval, and improves the sedimentation effect.

Description

A lateral flow fishbone-shaped inclined plate assembly and an inclined plate sedimentation tank Technical Field

[0001] This invention relates to the field of water treatment technology, specifically to a lateral flow fishbone-shaped inclined plate assembly and an inclined plate sedimentation tank. Background Technology

[0002] Sedimentation is a crucial step in water treatment processes, widely used both domestically and internationally, and is considered a fundamental supporting technology in water treatment. Currently, the most commonly used sedimentation tank is the horizontal flow sedimentation tank, which offers advantages such as good treatment efficiency, strong resistance to shock loads, convenient management and maintenance, and low operating costs. However, it requires a large area, making it unsuitable for projects with limited land. Inclined tube sedimentation tanks, based on Hazen's "shallow pool sedimentation theory," improve water flow patterns by installing inclined tubes (25mm~40mm diameter, 1.0m length, 60° inclination) within the tank, significantly enhancing treatment efficiency. According to Article 9.4.20 of the "Outdoor Drainage Design Code" (GB50013-2018), its surface load can reach 5.0m. 3 / (m 2 ·h)~9.0m 3 / (m 2 (·h), for sedimentation tanks of the same treatment capacity, the footprint is significantly reduced. However, for projects with even smaller land areas, sedimentation technologies with higher surface loading are required, such as side-flow inclined plate sedimentation tanks, where the clear water surface loading can reach 6.0m. 3 / (m 2 ·h)~12.0m 3 / (m 2 (·h), the footprint of a sedimentation tank of the same treatment capacity is further reduced.

[0003] However, existing lateral flow inclined plate sedimentation tanks still have some shortcomings and need further improvement. The main problems are as follows:

[0004] (1) Defects in structure and cleaning method restrict the length of the inclined plate, resulting in the need to design many "maintenance intervals" in the sedimentation tank, reducing the effective sedimentation area of ​​the sedimentation zone, and preventing the advantages of the lateral flow inclined plate from being fully utilized, thus affecting the overall liquid surface load level. Combined with relevant standards (such as the "Design Standard for Lateral Flow Inverted V-Shaped Inclined Plate Sedimentation Tanks" T / CECS) Analysis of GB50013-2018 (Outdoor Drainage Design Code) and existing patents (such as CN86200155U and CN220968181U) reveals three main reasons for the failure of inclined plates: First, the installation and fixing of inclined plates often utilizes the external modular support of the steel structure frame (as described in CN86200155U and CN220968181U). While this fixing method offers good overall stability, the inclined plates are typically made of plastic and are relatively thin, resulting in limited stability. If the length of the inclined plate is set too long, it can lead to bending or twisting deformation, causing the inclined plate to fail. Second, existing inclined plates are cleaned using end-mounted hydraulic flushing (this method is not mentioned in existing patents CN86200155U and CN220968181U, nor in GB50013-2018). The "Design Standard for Lateral Flow Inverted V-Shaped Inclined Plate Sedimentation Tanks" (T / CECS) also does not address this issue. The standard GB / T 587-2019 clearly stipulates the use of inclined plate-assisted sludge cleaning devices, and this method has been adopted in many real-world cases. However, due to the small spacing between the inclined plates, operation is inconvenient, resulting in a very limited effective flushing distance and preventing long-distance in-situ cleaning. This further restricts the length of the inclined plates. Thirdly, the long length also makes installation inconvenient. Because the spacing between the inclined plates is small (GB50013-2018, Clause 9.4.23, stipulates that the plate spacing should be 80mm~100mm, and T / CECS 587-2019, Clause 4.1.2, stipulates that the vertical spacing between inclined plates should be 40mm~100mm), when the length is long, manual operation is difficult, and installation is very inconvenient. Therefore, GB50013-2018, Clause 9.4.23, stipulates that the length of the inclined plates should not exceed 1.0m, and T / CECS 587-2019, Clause 4.1.2, stipulates that the vertical spacing between inclined plates should be 40mm~100mm), when the length is long, manual operation is difficult, and installation is very inconvenient. Standard 587-2019, section 4.1.1, specifies that the length of the inclined plate should be 0.99m. The reasons mentioned above all limit the length of existing lateral flow inclined plates. To ensure the effective sedimentation length of the sedimentation tank, the inclined plate must be divided into several sections connected in series, with a "maintenance interval" between each adjacent section for cleaning. This "maintenance interval" typically occupies 35-50% of the total length of the inclined plate module, thus severely restricting the overall liquid level load of the inclined plate module.

[0005] (2) Modular design is often adopted, but the structural design makes it inconvenient to disassemble and install, resulting in a huge transportation volume. Although the weight is not large, the transportation workload is huge and recycling is also inconvenient. Existing patent CN220968181 U has made an improvement on this by using a pole + bracket (with a connecting sleeve) combined with the plug strip (matching the connecting sleeve) designed at the end of the inverted V-shaped inclined plate to form a detachable support for the inverted V-shaped inclined plate. However, because the inclined plate is thin and light, it is very easy to deform when pushed in from the end, making installation very difficult.

[0006] (3) The material of the inclined plate is prone to aging, especially the upper inclined plate, which ages faster under long-term solar radiation. Existing inclined plates are usually made of polypropylene (PP), polyvinyl chloride (PVC) and fiberglass (FRP), all of which are prone to aging under long-term solar radiation, resulting in a limited service life. After aging, the inclined plate cannot be cleaned and will break brittlely when touched, usually requiring complete replacement, which seriously affects the treatment cost of the sedimentation tank.

[0007] Effectively improving or solving the above problems is of great practical significance for further enhancing the efficiency and application range of lateral flow inclined plate sedimentation tanks. Summary of the Invention

[0008] To address the shortcomings of existing technologies, this invention proposes a lateral flow herringbone-shaped inclined plate assembly and an inclined plate sedimentation tank, which effectively increases the length of the inclined plate, significantly reduces the proportion of maintenance intervals in the total length of the inclined plate module, and improves the liquid surface load level of the sedimentation tank.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] In a first aspect, the present invention provides a lateral flow fishbone-shaped inclined plate assembly, comprising a fishbone support, an inclined plate connector, and an inclined plate; the inclined plate is flat.

[0011] The inclined plate connector includes a mounting part, a connecting part, and an extension part; the mounting part is in the shape of a long thin plate and its width direction is inclined, and the upper end of the inclined plate is mounted on the upper surface of the mounting part; the upper side of the mounting part is provided with several connecting parts, and the lower side of the mounting part is provided with an extension part, and the lower end of the extension part is equipped with a rinsing component for rinsing the inclined plate.

[0012] At least one fishbone support is provided, arranged vertically; multiple pairs of inclined plate connectors are provided along the length of the fishbone support, each pair of inclined plate connectors is located opposite each other on both sides of the vertical plane where the fishbone support is located, and each pair of inclined plate connectors is detachably fixed to the fishbone support through the connecting part, so that the lower side of the mounting part is inclined away from the fishbone support.

[0013] As a preferred embodiment of the present invention, the lower end of the extension is provided with a slide rail extending along the length direction of the mounting portion; the flushing assembly includes a flushing nozzle that can slide along the slide rail and a water supply pipe connected to the flushing nozzle; the flushing direction of the flushing assembly is towards the upper and lower inclined plates and the fishbone support.

[0014] As a preferred embodiment of the present invention, the fishbone support is vertically strip-shaped and is evenly arranged along the length of the inclined plate.

[0015] As a preferred embodiment of the present invention, the fishbone support and the inclined plate connector are made of stainless steel or corrosion-resistant carbon steel. Selecting the appropriate material for the inclined plate connector and the fishbone support can ensure the stability of the inclined plate installation, reduce the overall weight of the fishbone-shaped inclined plate assembly, and provide sufficient durability in the sedimentation tank water environment.

[0016] As a preferred embodiment of the present invention, the overlap width between the inclined plate and the mounting part is 1 / 12 to 1 / 8 of the width of the inclined plate, preferably 1 / 10.

[0017] As a preferred embodiment of the present invention, the vertical spacing between each pair of inclined plate connectors along the length of the fishbone support is typically 80-100mm.

[0018] As a preferred embodiment of the present invention, the tilting direction of the mounting part matches the mounting angle of the inclined plate; the mounting angle of the inclined plate relative to the horizontal plane is generally 60°, therefore the tilting angle of the mounting part relative to the fishbone bracket is 30°.

[0019] As a preferred embodiment of the present invention, the two ends of the fishbone support are provided with mounting components for fixing the fishbone support on the support beam inside the inclined plate sedimentation tank.

[0020] In a second aspect, the present invention provides a lateral flow fishbone-shaped inclined plate sedimentation tank, including a fishbone-shaped inclined plate module, wherein the fishbone-shaped inclined plate module includes a fishbone-shaped inclined plate assembly, a support beam, a support column, and a triangular baffle.

[0021] At least one pair of support beams are provided, and each pair of support beams is arranged vertically opposite each other.

[0022] Several support columns and several fishbone-shaped inclined plate assemblies are installed between the support beams arranged opposite each other at the top and bottom along the length of the support beams. Both ends of the fishbone support in each fishbone-shaped inclined plate assembly are installed on the support beam. The fishbone support and the support columns are arranged alternately, and a mud discharge channel is formed between adjacent fishbone-shaped inclined plate assemblies.

[0023] The triangular baffles are located at the beginning and end of the fishbone-shaped inclined plate module, and between the inclined plate and the support beam at the bottom of each fishbone support.

[0024] As a preferred embodiment of the present invention, in the fishbone-shaped inclined plate assembly, the lower inclined plate is made of plastic, and the upper inclined plate is made of stainless steel or carbon steel (including anti-corrosion material), which can resist solar radiation, improve the overall durability of the fishbone-shaped inclined plate assembly, reduce the replacement frequency, and improve water treatment efficiency and quality.

[0025] The technical principle of this invention is as follows: the inclined plate is set as a flat plate, and the upper end of the inclined plate is fixedly installed on the inclined plate connector, so that the flat plate is arranged in an inclined cantilever shape. The two flat plates form an approximately inverted V-shaped inclined plate structure after being fixed by the inclined plate connector. The upper end of a single inclined plate is supported by the cantilever of the inclined plate connector, and the lower end of the inclined plate remains in a natural state under its own weight. The greater the overlap and fixing length between the inclined plate connector and the inclined plate, the stronger the support for the inclined plate and the more stable the inclined plate is. Since the inclined plate itself has a certain rigidity, it is not easy for the inclined plate to bend and deform under this condition (compared to the traditional inverted V-shaped inclined plate). Furthermore, in this invention, the upper end of the inclined plate is mounted on the inclined plate connector, and it is supported by the cantilever of the inclined plate connector along its length. The length of the inclined plate is much greater than its width, and the bending deformation that the inclined plate can produce is small. In other words, this invention completely changes the stress distribution mode of the traditional inverted V-shaped inclined plate. In addition, the fishbone-shaped inclined plate assembly of this invention is also equipped with a flushing component. The flushing nozzle can slide along the slide rail and can effectively flush the entire length of the inclined plate. The change in the stress distribution mode of the inclined plate and the setting of the flushing component can significantly increase the allowable length of the inclined plate, thereby effectively reducing the setting of "maintenance interval" and improving the overall liquid level load of the sedimentation tank.

[0026] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0027] (1) The traditional integrated inverted V-shaped inclined plate is replaced by a new inverted V-shaped inclined plate structure assembled from flat inclined plates. The inclined plates are installed on the fishbone support through the inclined plate connector to form an inclined plate assembly. This changes the stress mode of the inclined plate and improves the structural stability of the inclined plate. Furthermore, the inclined plate assembly is equipped with a flushing component to facilitate direct cleaning of the inclined plate, which increases the allowable length of the inclined plate and completely breaks through the 1m length limit. This reduces or even eliminates the maintenance gap between the inclined plate modules, thereby improving the overall liquid surface load level and water treatment efficiency of the sedimentation tank. The design of the fishbone-shaped inclined plate assembly reduces the hydraulic radius, lowers the Reynolds number, improves the sedimentation conditions of the lateral flow inclined plate, and has a better sedimentation effect.

[0028] (2) A flushing component is provided on the inclined plate assembly, which can conveniently clean the inclined plate directly. Compared with the traditional cleaning method, a large number of inclined plate auxiliary mud cleaning devices are eliminated, the cost of cleaning equipment is greatly reduced, and the downtime caused by the traditional cleaning method can be shortened. In addition, the inclined plate on the upper part of the inclined plate module is replaced with metal material, which improves the overall durability and service life of the inclined plate module. Attached Figure Description

[0029] Figure 1 is a schematic diagram of the cross-sectional structure of the fishbone-shaped inclined plate module.

[0030] Figure 2 is a schematic diagram of the fishbone-shaped inclined plate assembly; wherein, Figure 2(a) is a schematic diagram of the upper part and Figure 2(b) is a schematic diagram of the lower part.

[0031] Figure 3 is a schematic diagram of the inclined plate connector.

[0032] Figure 4 is a schematic diagram of the flushing assembly; Figure 4(a) is a schematic diagram of the flushing nozzle and the slide rail, and Figure 4(b) is the main view.

[0033] Figure 5 is a top view of the fishbone-shaped inclined plate module.

[0034] Figure 6 is a schematic diagram of the structure of a lateral flow fishbone-shaped inclined plate sedimentation tank.

[0035] In the diagram: fishbone-shaped inclined plate assembly 1, fishbone bracket 11, mounting assembly 12, support 121, fixing bolt 122, inclined plate connector 13, connecting part 131, mounting part 132, first bolt 133, second bolt 134, extension part 135, slide rail 136, flushing assembly 14, flushing nozzle 141, water supply pipeline 142, water spray hole 143, inclined plate 15, support beam 2, support column 3, sludge discharge channel 4. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0037] In the description of this invention, it should be noted that the terms "upper end," "lower end," "one end," and "other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" 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; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0039] To address the problems of existing technologies, this invention designs a lateral flow inclined plate assembly resembling a "fishbone". The water-facing surface of the inclined plate assembly is shaped like a fishbone, and the sedimentation tank using this type of inclined plate can be called a "lateral flow fishbone-shaped inclined plate sedimentation tank".

[0040] Example 1;

[0041] Please refer to Figures 1-6. This embodiment provides a lateral flow fishbone-shaped inclined plate assembly 1, including a fishbone support 11, an inclined plate connector 13, and an inclined plate 15; the inclined plate 15 is flat.

[0042] The inclined plate connector 13 includes a mounting part 132, a connecting part 131, and an extension part 135. The mounting part 132 is in the shape of a long thin plate and is inclined in the width direction. The upper end of the inclined plate 15 is mounted on the upper surface of the mounting part 132. A plurality of connecting parts 131 are provided on the upper side of the mounting part 132, and an extension part 135 is provided on the lower side of the mounting part 132. A rinsing assembly 14 for rinsing the inclined plate 15 is installed at the lower end of the extension part 135.

[0043] At least one fishbone support 11 is provided, arranged vertically; multiple pairs of inclined plate connectors 13 are provided along the length of the fishbone support 11, each pair of inclined plate connectors 13 is provided on both sides of the vertical plane where the fishbone support 11 is located, and each pair of inclined plate connectors 13 is detachably fixedly connected to the fishbone support 11 through the connecting part 131, so that the lower side of the mounting part 132 is inclined away from the fishbone support 11.

[0044] Specifically, the mounting part 132 is a long, thin plate structure, and its length matches the length of the inclined plate 15. It can be made of stainless steel or rust-proof carbon steel. A suitable mounting part 132 can ensure the installation stability of the inclined plate 15 (high strength), reduce the overall weight of the fishbone-shaped inclined plate assembly 1 (lightweight), and have sufficient durability (corrosion resistance) in the sedimentation tank water environment. Several second bolts 134 are provided on the mounting part 132 along its length to fix the inclined plate 15. The overlap width between the inclined plate 15 and the mounting part 132 is 1 / 12 to 1 / 8 of the width of the inclined plate 15, preferably 1 / 10. The inclination direction of the mounting part 132 matches the installation angle of the inclined plate 15. The installation angle of the inclined plate 15 relative to the horizontal plane is generally 60°. Therefore, the inclination direction of the mounting part 132 relative to the vertically arranged fishbone support 11 is 30°, and the included angle of the same pair of inclined plate connectors is also 60°.

[0045] Specifically, the lower end of the extension 135 is provided with a slide rail 136 extending along the length of the mounting part 132. The length of the slide rail 136 matches the length of the mounting part 132 and the inclined plate 15. The rinsing assembly 14 includes a rinsing nozzle 141 that can slide along the slide rail 136 and a water supply pipe 142 connected to the rinsing nozzle 141. The rinsing nozzle 141 is provided with a plurality of water spray holes 143. The water spray holes 143 need to be evenly arranged in the length direction and circumferential direction of the rinsing nozzle 141 (Figure 4 is only a simplified illustration and does not represent the arrangement of the water spray holes). It can achieve rinsing in 360° direction. The rinsing direction of the rinsing assembly 14 is towards the surface of the upper and lower inclined plates 15 and the fishbone support. The extension 135 can be configured according to specific circumstances. For example, it can be a long, thin plate-like structure, connecting the mounting part 132 and the slide rail 136 along its length. Alternatively, it can be several blocks, connecting the mounting part 132 and the slide rail 136 at partial locations. The connection must be secure and able to withstand the weight of the flushing assembly 14 and the flushing water pressure. It should be noted that the water supply pipe 142 is also connected to a high-pressure flushing device. The high-pressure flushing device sprays high-pressure water onto the inclined plate 15 through the water supply pipe 142 and the flushing nozzle 141. During use, since the flushing nozzle 141 is not fixed, it moves away from the water flow under the reaction force of the water flow, requiring no additional power. If necessary, the inclined plate 15 can also be cleaned by pushing the water supply pipe 142 and pulling the flushing nozzle 141.

[0046] Specifically, the connecting part 131 is located on the upper side of the mounting part 132. The other end of the connecting part 131 can extend upward (making the inclined plate connector 13 approximately S-shaped) or downward (making the inclined plate connector 13 approximately groove-shaped). However, since the mounting part 132 is located on the lower side of the connecting part 131, the upward extension of the other end of the connecting part 131 makes it easier to install and fix the inclined plate connector 13 and the fishbone bracket 11.

[0047] Specifically, the fishbone support 11 is strip-shaped vertically and is arranged uniformly along the length direction of the inclined plate 15. For example, the fishbone support 11 is rod-shaped or bar-shaped or narrow plate-shaped, and its cross-sectional shape can be circular or rectangular, and it can be solid or hollow, as long as the structure of the fishbone-shaped inclined plate assembly is ensured to be stable. Taking the vertical plane where the axis of the fishbone support 11 is located as the reference, a number of screw holes are provided on the left and right sides along the axis direction (i.e., the length direction) of the fishbone support 11 for installing the inclined plate connecting member 13, and the number of screw holes is symmetric about this vertical plane. Along the length direction of the fishbone support 11, the vertical spacing between each pair of inclined plate connecting members 13 is 80 - 100 mm, and the number of pairs of the inclined plate connecting members 13 can be set according to the depth of the sedimentation tank and actual needs. The more pairs of the inclined plate connecting members 13, the higher the requirements for the fishbone support 11. The number of screw holes can match the number of pairs of the inclined plate connecting members 13 or exceed the number of pairs of the inclined plate connecting members 13. When the number of screw holes is greater than the number of pairs of the inclined plate connecting members 13, the layout spacing of the inclined plate connecting members 13 can be further adjusted according to actual needs.

[0048] Specifically, along the length direction of the inclined plate 15, the fishbone supports 11 are arranged uniformly. When the fishbone-shaped inclined plate assembly is provided with the flushing assembly 14, the theoretical length of the inclined plate 15 is no longer restricted. The inclined plate 15 actually used in the sedimentation tank is usually determined according to the length of the sedimentation tank and the transportation length (transport vehicle) of the inclined plate 15, such as 6 m, 9 m, 12 m, etc. In a few cases, the length of the inclined plate 15 may also be less than 2 m. Therefore, the specific number of the fishbone supports 11 needs to be determined according to the actual length of the inclined plate 15. Usually, a single fishbone support 11 bears the inclined plate 15 within the length range of 1 m - 1.5 m. When the number of the fishbone supports 11 is 1, the connecting portion 131 is arranged at the middle position on the upper side of the mounting portion 132, making the mounting portion 132 symmetric about the connecting portion 131 to ensure the force balance between the inclined plate connecting member 13 and the inclined plate 15. A number of first bolts 133 are provided on the connecting portion 131, and the connecting portion 131 can be fixedly installed on the fishbone support 11 through the first bolts 133. When the number of the fishbone supports 11 is 2, the two connecting portions 131 are respectively arranged at the end positions on the upper side of the mounting portion 132 or positions close to the ends (i.e., a cantilever section can be set). When the number of the fishbone supports 11 is 3 or more, except for the aforementioned two connecting portions 131, the other connecting portions 131 are evenly arranged at equal intervals between the two connecting portions 131. The width direction can be determined according to the width of the sedimentation tank and design requirements.

[0049] Specifically, both ends of the fishbone support 11 are further provided with a mounting component 12 for fixedly installing the fishbone support 11 on the support beam 2 in the sedimentation tank. The mounting component 12 includes a support 121. One end of the support 121 is connected to the fishbone support 11, and the other end can be connected to the support beam 2. The support 121 can be made of metal sheet, and its vertical section is approximately in the shape of the Chinese character 'er'.

[0050] Embodiment 2;

[0051] Please refer to Figures 1-6. This embodiment provides a lateral flow fishbone-shaped inclined plate sedimentation tank, including a fishbone-shaped inclined plate module. The fishbone-shaped inclined plate module includes a fishbone-shaped inclined plate assembly 1, a support beam 2, a support column 3, and a triangular baffle.

[0052] At least one pair of support beams 2 are provided, with each pair of support beams 2 arranged vertically opposite each other.

[0053] Several support columns 3 and several fishbone-shaped inclined plate assemblies 1 are installed between the support beams 2 arranged opposite each other at the top and bottom along the length of the support beams 2. Both ends of the fishbone support 11 in each fishbone-shaped inclined plate assembly 1 are installed on the support beam 2. The fishbone support 11 and the support column 3 are arranged alternately, and a mud discharge channel 4 is formed between adjacent fishbone-shaped inclined plate assemblies 1.

[0054] Triangular baffles (not shown in the figure) are provided at the beginning and end of the fishbone-shaped inclined plate module, and are located between the inclined plate 15 at the bottom of each fishbone support 11 and the support beam 2.

[0055] It should be noted that the difference between this embodiment and the traditional side-flow inclined plate sedimentation tank is that a fishbone-shaped inclined plate module is used. Other structural components in the sedimentation tank, except for the fishbone-shaped inclined plate module, can be the structural components in the traditional technology, and will not be described in detail in this embodiment.

[0056] Besides providing support, the support column 3 has another important function: blocking the water flow on the water-facing side, forcing the water to flow only through the inclined plate area for sedimentation and preventing it from directly impacting the sludge discharge channel. Therefore, under normal circumstances, the herringbone-shaped inclined plate module should ideally have no fewer than two pairs of support beams 2, and the herringbone-shaped inclined plate assembly 1 should have no fewer than two herringbone supports 11. These two pairs of support beams 2 and two herringbone supports 11 are located at both ends of the inclined plate 15. The herringbone-shaped inclined plate module consisting of a pair of support beams 2 and a herringbone support 11 is generally not used alone, but needs to be used in conjunction with other types of herringbone-shaped inclined plate modules to prevent the water flow from impacting the sludge discharge channel. In addition, the triangular baffle, located at the very bottom of each herringbone support 11, is also used to block the water flow, specifically to prevent the water flow from impacting the sludge area at the bottom of the sedimentation tank.

[0057] Specifically, the supporting columns 3 and the herringbone-shaped inclined plate components 1 are preferably staggered to provide structural stability for the herringbone-shaped inclined plate modules.

[0058] Besides the herringbone-shaped inclined plate module, the lateral flow herringbone-shaped inclined plate sedimentation tank mainly consists of the tank body (including inlet and outlet flow stabilizing walls, adjustable outlet weirs, etc.) and a sludge removal system (using bucket sludge removal, perforated pipe sludge removal, or hydraulic reciprocating sludge removal machine, etc.). The inclined plate module is the core part of the sedimentation tank. The inclined plate assembly consists of a herringbone support, inclined plates, and inclined plate connectors. The inclined plate module itself is composed of upper and lower support beams, support columns, inclined plate components, and end triangular baffles.

[0059] The functions of each component of the inclined plate assembly and inclined plate module are as follows: (1) The fishbone bracket 11 provides support for all inclined plates 15. At the same time, the fishbone bracket 11 is designed with regular mounting screw holes with positioning function, which facilitates the flexible and quick fixing of the inclined plates 15. The installation spacing of the inclined plates 15 can be adjusted as needed to adapt to different requirements. It is fixed to the support by screws; (2) In addition to providing support for the fishbone bracket 11, the mounting component 12 will also enhance the overall stability of the inclined plate module; (3) The inclined plates 15 divide the sedimentation tank from a single sedimentation surface into multiple "shallow sedimentation units", which greatly increases the effective sedimentation area. The inclined plates 15 and the fishbone bracket 11 are connected by screws. (4) The inclined plate connector 13 is not only responsible for efficiently connecting the fishbone support 11 and the inclined plate 15, but also provides a slide rail 136 for the flushing assembly 14, which facilitates the operation and maintenance of the inclined plate 15; (5) The support system of the inclined plate module (i.e., support beam 2 and support column 3) is responsible for providing support for the entire module. The support beam 2 is fixed on the side walls on both sides of the sedimentation tank, and at the same time, it provides support for the fishbone inclined plate assembly 1. The fishbone inclined plate assembly 1 is connected to it by bolts; In addition to providing support for the system, the support column 3 is also responsible for limiting the fishbone inclined plate assembly 1, and at the same time, it effectively prevents the sludge settling in the sludge discharge channel 4 from being disturbed by the water flow before and after sedimentation.

[0060] Specifically, the construction process is briefly described as follows: (1) Transport the fishbone-shaped inclined plate assembly 1 and each component in the inclined plate module to the construction site; (2) Install the bottom support beam 2 inside the sedimentation tank; (3) Assemble the fishbone-shaped inclined plate assembly 1 on the open ground outside the sedimentation tank; (4) Hoist the fishbone-shaped inclined plate assembly 1 above the bottom support beam 2, and fix the fishbone-shaped inclined plate assembly 1 to the bottom support beam 2 through the installation component 12 at the lower end of the fishbone bracket 11; (5) Install the support column 3 while installing the fishbone-shaped inclined plate assembly 1; (6) Install the top support beam 2, and fix the fishbone-shaped inclined plate assembly 1 to the top support beam 2 through the installation component 12 at the upper end of the fishbone bracket 11; (7) Install triangular baffles at the beginning and end of the fishbone-shaped inclined plate module.

[0061] Specifically, the following material selection recommendations are made: the fishbone-shaped inclined plate assembly 1 and the support beams 2 and support columns 3 in the inclined plate module can all be made of stainless steel or carbon steel (including corrosion protection). The fishbone bracket 11 can also be made of stainless steel or carbon steel (including corrosion protection). Due to the innovative structure, the inclined plate 15 itself does not need to bear too much load. Therefore, in the fishbone-shaped inclined plate assembly 1, the lower inclined plate 15 can continue to be made of plastic material, while the upper inclined plate 15 should be made of stainless steel or carbon steel (including corrosion protection) to resist solar radiation. This will improve the overall durability of the fishbone-shaped inclined plate assembly 1, reduce the frequency of replacement, and improve water treatment efficiency and quality.

[0062] The main advantages of this invention are as follows:

[0063] (1) Compared with the existing lateral flow inverted V-shaped inclined plate technology, the design of the fishbone-shaped inclined plate assembly reduces the hydraulic radius, lowers the Reynolds number, improves the sedimentation conditions of the horizontal flow inclined plate, and has a better sedimentation effect;

[0064] (2) The fishbone bracket design with positioning screw holes is not only easy to install, but also adaptable to different needs and can be flexibly assembled into fishbone inclined plate components with different inclined plate spacing.

[0065] (3) Through the ingenious structural design of the inclined plate assembly and the inclined plate module as a whole, the stability of the inclined plate assembly itself and the inclined plate module as a whole is effectively guaranteed;

[0066] (4) The structural strength and load-bearing capacity are significantly improved by adopting a fishbone-shaped support. In addition, the design of the flushing slide rail on the inclined plate connector effectively solves the limitation that the length of the inclined plate should not exceed 1m. The length of the inclined plate can be determined according to the needs of convenient transportation (such as 6m, 9m, 12m, etc.), which greatly increases the effective sedimentation area, improves the liquid surface load, and significantly reduces the floor space.

[0067] (5) The inclined plate at the top of the inclined plate module is made of stainless steel or carbon steel (including anti-corrosion), which effectively solves the problems of material stability and durability. At the same time, it is more rigid and less prone to deformation, effectively ensuring the 60° slope of the inclined plate, making the solid-liquid separation effect and sludge removal effect more guaranteed.

[0068] (6) Large-size modular assembly, enabling faster on-site installation;

[0069] (7) Both the inclined plate assembly and the inclined plate module can be disassembled into small parts that are easy to arrange closely for transportation, which greatly improves transportation efficiency and reduces transportation costs;

[0070] (8) The inclined plate assembly and the inclined plate module are all connected by bolts, which makes it easy to disassemble and reuse, and also makes it easy to further modify and upgrade. By reducing the spacing between the inclined plates, the particle interception accuracy can be effectively improved, and the water treatment quality and efficiency can be improved.

[0071] Taking the case shown in Figure 6 as an example, a 6m long effective sedimentation area, if designed according to traditional methods, would require three sedimentation zones, spaced 2 meters apart, with two 1m maintenance intervals in between. This would mean the same 6m effective sedimentation area would require 8m to meet the requirements, necessitating the installation of corresponding sludge removal devices and extending the lower hydraulic reciprocating scraper by 2m. If the space is limited to 6m for sedimentation, then according to regulations, two sedimentation zones would be arranged in a 2+1+2 configuration (the extra 1m is unusable), reducing the processing capacity to only 4 / 6, or 2 / 3.

[0072] By using the inclined plate sedimentation tank of this invention, maintenance intervals are not required; that is, a 6m long effective sedimentation zone can be equipped with a 6m long inclined plate, allowing the liquid surface load to reach 18m. 3 / (m 2 •h), if the effective water depth increases from 2.5m to 5m, the surface load can reach 36m. 3 / (m 2 •h).

[0073] The key points of this invention are: (1) By designing the fishbone-shaped steel structure support and flushing components, the limitation that the length of the lateral flow inclined plate should not exceed 1m is effectively solved, the number of maintenance intervals is greatly reduced, the effective sedimentation area is greatly increased, the water treatment quality and efficiency are improved, and the liquid surface load is increased and the floor area is reduced; (2) The inclined plate assembly and inclined plate module with structural stability are constructed by the support beam, support column, inclined plate connector, fishbone bracket and its installation components; (3) A large number of regular positioning screw holes are designed on the fishbone-shaped bracket, which facilitates the flexible assembly of inclined plates with different spacings; (4) The components in the inclined plate assembly and inclined plate module are detachable and can be arranged closely for transportation, which greatly improves transportation efficiency and reduces transportation costs; (5) The whole is bolted, can be disassembled twice, recycled and reused, and is low-carbon and environmentally friendly.

[0074] The above description is only used to illustrate the technical solution of the present invention and is not intended to limit it. Any modifications or substitutions made by other people skilled in the art to the technical solution, as long as they do not depart from the connotation of the technical solution of the present invention, should be covered within the scope of the claims of the present invention.

Claims

1. A lateral flow herringbone-shaped inclined plate assembly, characterized in that: The device includes a fishbone support, inclined plate connectors, and an inclined plate. The inclined plate is flat. The inclined plate connector includes a mounting part, a connecting part, and an extension part. The mounting part is a long, thin plate with an inclined orientation in its width direction. The upper end of the inclined plate is mounted on the upper surface of the mounting part. The upper side of the mounting part has several connecting parts, and the lower side of the mounting part has an extension part. The lower end of the extension part is equipped with a rinsing component for rinsing the inclined plate. There is at least one fishbone support, arranged vertically. Multiple pairs of inclined plate connectors are provided along the length of the fishbone support. Each pair of inclined plate connectors is located opposite each other on both sides of the vertical plane of the fishbone support. Each pair of inclined plate connectors is detachably fixed to the fishbone support through the connecting part, so that the lower side of the mounting part is inclined away from the fishbone support.

2. The lateral flow herringbone-shaped inclined plate assembly according to claim 1, characterized in that: The lower end of the extension is provided with a slide rail extending along the length of the mounting section; the flushing assembly includes a flushing nozzle that can slide along the slide rail and a water supply pipe connected to the flushing nozzle.

3. The lateral flow herringbone-shaped inclined plate assembly according to claim 2, characterized in that: The fishbone support is vertically strip-shaped and evenly arranged along the length of the inclined plate.

4. The lateral flow herringbone-shaped inclined plate assembly according to claim 3, characterized in that: The fishbone support and inclined plate connectors are made of stainless steel or corrosion-resistant carbon steel.

5. The lateral flow herringbone-shaped inclined plate assembly according to claim 4, characterized in that: The overlap width between the inclined plate and the mounting part is 1 / 12 to 1 / 8 of the width of the inclined plate.

6. The lateral flow herringbone-shaped inclined plate assembly according to claim 4, characterized in that: Along the length of the fishbone support, the vertical spacing between each pair of inclined plate connectors is 80-100mm.

7. The lateral flow herringbone-shaped inclined plate assembly according to claim 4, characterized in that: The mounting part is tilted at an angle of 30° relative to the fishbone support.

8. The lateral flow herringbone-shaped inclined plate assembly according to claim 4, characterized in that: The fishbone support is provided at both ends with mounting components for fixing the fishbone support to the support beam inside the inclined plate sedimentation tank.

9. A lateral flow fishbone-shaped inclined plate sedimentation tank, characterized in that: The system includes a fishbone-shaped inclined plate module, comprising a fishbone-shaped inclined plate assembly, support beams, support columns, and triangular baffles. At least one pair of support beams are provided, with each pair arranged vertically opposite each other. Several support columns and several fishbone-shaped inclined plate assemblies are installed along the length of the support beams between the vertically opposite support beams. Both ends of the fishbone support in each fishbone-shaped inclined plate assembly are mounted on the support beams. The fishbone support and support columns are arranged alternately, and a mud-discharging channel is formed between adjacent fishbone-shaped inclined plate assemblies. The triangular baffles are installed at the beginning and end of the fishbone-shaped inclined plate module and are located between the bottom inclined plate and support beam of each fishbone support.

10. The lateral flow fishbone-shaped inclined plate sedimentation tank according to claim 9, characterized in that: In the fishbone-shaped inclined plate assembly, the lower inclined plate is made of plastic, while the upper inclined plate is made of stainless steel or corrosion-resistant carbon steel.

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