A prefabricated solid-liquid separation drainage plate and pipe assembly, and a solid-liquid separation device.

Abstract

This utility model belongs to the field of solid-liquid separation and filtration technology, and discloses an assembled solid-liquid separation drainage plate and pipe assembly and a solid-liquid separation device to solve the problems of lack of adaptive adjustment capability and low drainage efficiency in existing drainage structures. The assembly includes a drainage plate and a suction drainage pipe; the drainage plate has a flow-guiding structure extending along its length, and its outer surface is covered with fiber filter cloth to achieve solid-liquid separation; the suction drainage pipe is a plastic pipe with a sealed bottom end and a suction device connected to its upper end, and the pipe wall has at least one set of radially symmetrically distributed slits; during assembly, the drainage plate rotates around the suction drainage pipe to increase the contact area with the surrounding medium, and penetrates the suction drainage pipe through the slits. The connection between the two is sealed with a sealant to form a connected suction channel, thereby improving the accumulation, separation, and flow efficiency of liquids and gases; the penetration relationship between the drainage plate and the suction drainage pipe is one-to-one, one-to-many, many-to-one, or many-to-many.

Description

Technical Field

[0001] This utility model belongs to the field of solid-liquid separation and filtration technology, and more specifically relates to an assembled solid-liquid separation drainage plate and pipe assembly and a solid-liquid separation device. Background Technology

[0002] In the fields of soft soil foundation treatment and industrial wastewater treatment, solid-liquid separation technology is of great significance for improving construction efficiency and reducing treatment costs. A Chinese utility model patent (application number 2025203460941) provides a suction-type drainage pipe fitting, comprising a filter body for infiltrating water and / or air from the soil and a pipe body capable of suctioning water and / or air from the soil; the filter body is a membrane structure with its edges sealed together to form a filter cavity; the pipe body passes through and communicates with the filter cavity, enabling the drainage of water and / or air within the filter cavity to form a suction-type drainage pipe fitting. This technical solution improves upon the inefficiency of traditional drainage technologies that rely solely on natural infiltration through active suction, achieving certain results in ordinary soil drainage scenarios.

[0003] However, existing technologies have significant shortcomings when treating solid-liquid mixtures with extremely high water content (100%-500%), such as sewage tanks, sludge tanks, silt, septic tanks, livestock farm wastewater, tanneries wastewater, landfill leachate, mineral washing pond sludge, and brine tanks. On the one hand, the fixed drainage structure has a limited contact area with high-viscosity fluids, directly leading to reduced suction efficiency. On the other hand, existing structures cannot flexibly adjust the drainage area according to actual working conditions, making it difficult to meet the treatment needs of different viscosities and water contents. Especially for special media containing a large number of suspended particles, such as landfill leachate and mineral washing pond sludge, existing suction-type drainage pipe fittings exhibit rapid decline in suction efficiency and increased energy consumption in practical applications. The main reason for this is that the drainage structure in existing technologies lacks adaptive adjustment capabilities and cannot optimize its drainage area and channel structure for solid-liquid mixtures of different properties. Utility Model Content

[0004] This invention aims to overcome the problems of low suction efficiency and high energy consumption in existing solid-liquid separation devices used in environments with extremely high water content. Specifically, this invention proposes an assembled solid-liquid separation drainage plate and pipe assembly and a solid-liquid separation device to improve adaptability and enhance drainage efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] In a first aspect, this utility model provides an assembled solid-liquid separation drainage plate and pipe assembly, including a drainage plate and a suction drainage pipe; the drainage plate is provided with a flow guiding structure extending along its length, and its outer surface is covered with fiber filter cloth to achieve solid-liquid separation; the suction drainage pipe is a plastic pipe with a sealed bottom port and a suction device connected to the upper port, and the pipe wall is provided with at least one set of radially symmetrically distributed slits; when assembled, the drainage plate rotates around the suction drainage pipe to increase the contact area with the surrounding medium, and penetrates the suction drainage pipe through the slits, and the connection between the two is sealed with a sealing element to form a connected suction channel, thereby improving the accumulation, separation and flow efficiency of liquid and gas; the penetration relationship between the drainage plate and the suction drainage pipe is one-to-one, one-to-many, many-to-one or many-to-many.

[0007] As a preferred embodiment, the drainage plate rotates around the suction drain pipe several times to form a spiral structure; the spiral structure includes a gapless spiral structure and a gapped spiral structure.

[0008] As a preferred embodiment, it also includes a flow-guiding mesh interlayer that rotates synchronously around the suction drain pipe with the drainage plate; the flow-guiding mesh interlayer has a cross-grid structure; during drainage, the liquid sequentially passes through the flow-guiding mesh interlayer, the fiber filter cloth, and the flow-guiding structure into the suction channel.

[0009] As a preferred embodiment, the flow guiding structure is trough-shaped, a cross-layered plastic strip mesh, or a cylindrical boss-shaped structure.

[0010] As a preferred embodiment, the width of the drainage board ranges from [10cm to 30cm], and the thickness ranges from [3mm to 6mm].

[0011] As a preferred embodiment, the diameter of the suction drain pipe is in the range of [30cm, 150cm].

[0012] As a preferred embodiment, the wall of the suction drain pipe is provided with at least two sets of the cuts, and the axial spacing between adjacent sets is in the range of [10cm, 100cm].

[0013] Secondly, this utility model provides a solid-liquid separation device, including at least one assembled solid-liquid separation drainage plate and pipe assembly as described in the first aspect; the upper port of the suction drainage pipe is connected to one or more horizontally arranged discharge pipes, and the discharge pipes are connected to the suction device; the suction method of the suction device is positive pressure or negative pressure suction.

[0014] As a preferred embodiment, it further includes: an outer shell, which is a cylinder or cuboid with through holes or mesh; the assembled solid-liquid separation drainage plate and pipe assembly is installed in the outer shell.

[0015] As a preferred embodiment, it also includes: a buoyancy component, fixed to the suction drain pipe.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This invention achieves dynamic contact area adjustment through four penetration relationships between the drainage plate and the suction drainage pipe. Combined with the spiral winding structure of the drainage plate, it further enhances the guiding and distribution effect of the liquid. This invention can adaptively adjust according to actual conditions during drainage, greatly improving the flexibility and efficiency of drainage. Compared with existing drainage devices with fixed contact area and single flow pattern, it has significant advantages.

[0018] 2. This utility model achieves a three-stage filtration mechanism through "flow-guiding mesh interlayer → fiber filter cloth → flow-guiding drainage structure". Compared with the existing single-stage or double-stage filtration devices, it can more effectively remove impurities from liquids, improve filtration accuracy and efficiency, and meet the strict requirements for liquid purity in different scenarios.

[0019] 3. This utility model achieves modular design and rapid assembly of each component through prefabricated assembly. The prefabricated structure allows components such as the drainage board, suction drainage pipe, and flow guide mesh interlayer to be produced and processed independently, and then assembled using simple connection methods (such as detachable plastic clips). This design not only improves production efficiency and reduces production costs, but also makes the installation and disassembly of the equipment more convenient and faster.

[0020] 4. The buoyancy component described in this utility model enables the assembled solid-liquid separation drainage plate and pipe assembly to float on the water or liquid surface in the treated storage tank, achieving adaptive liquid level adjustment and thus ensuring the solid-liquid separation filtration effect.

[0021] Further or more detailed beneficial effects will be described in conjunction with specific embodiments in the detailed implementation. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a structural schematic diagram of the assembled solid-liquid separation drainage plate and pipe assembly described in this utility model.

[0024] Figure 2This is a partially enlarged schematic diagram of the assembled solid-liquid separation drainage plate and pipe assembly described in this utility model.

[0025] Figure 3 This is a partially enlarged schematic diagram of the assembled solid-liquid separation drainage plate and pipe assembly described in this utility model.

[0026] Figure 4 This is a schematic diagram of the sealing element described in this utility model.

[0027] Figure 5 This is a schematic diagram showing the penetration relationship between the drainage board and the suction drainage pipe described in this utility model.

[0028] Figure 6 This is a schematic diagram of the solid-liquid separation device described in this utility model.

[0029] Figure 7 This is a schematic diagram of a preferred embodiment of the solid-liquid separation device described in this utility model.

[0030] Figure 8 This is a schematic diagram of another preferred embodiment of the solid-liquid separation device described in this utility model.

[0031] Figure 9 This is a top view schematic diagram of a preferred embodiment of the buoyancy component described in this utility model.

[0032] Icon labels:

[0033] 01. Drainage board;

[0034] 02. Suction drain pipe; 021. Bottom port; 022. Top port; 023. Cutout;

[0035] 03. Sealing components;

[0036] 04. Outer shell;

[0037] 05. Buoyancy components. Detailed Implementation

[0038] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Those skilled in the art will be able to implement the present invention based on these descriptions. Furthermore, the embodiments of the present invention described below are generally only a part of the embodiments of the present invention, and not all of the embodiments. Therefore, all other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort should fall within the scope of protection of the present invention. Additionally, the terms "vertical," "horizontal," "front," "rear," etc., mentioned in the embodiments of the present invention, indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product is in use. They are only for the convenience of describing the present invention and 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, and therefore should not be construed as a limitation of the present invention. It should be further noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," and "fixing" in the description should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] Example 1:

[0040] This embodiment provides a prefabricated solid-liquid separation drainage plate and pipe assembly. Through an innovative rotary penetration structure design, it effectively solves the technical bottlenecks of traditional drainage structures, such as fixed contact area and poor adaptability. Figures 1-4 As shown, the assembled solid-liquid separation drainage plate and pipe assembly includes a drainage plate 01 and a suction drainage pipe 02.

[0041] The drainage plate 01 is provided with a flow-guiding structure extending along its length, and its outer surface is covered with a fiber filter cloth to achieve solid-liquid separation. Preferably, the flow-guiding structure is trough-shaped, a cross-laminated plastic strip mesh, or a cylindrical boss-shaped structure. The form of the flow-guiding structure can be selected according to the actual working conditions and the characteristics of the solid-liquid mixture to optimize the drainage effect. For example, the trough-shaped flow-guiding structure is suitable for situations where the liquid has good fluidity and the solid particles are large, and can quickly guide the liquid flow; the cross-laminated plastic strip mesh flow-guiding structure can increase the contact area between the liquid and the drainage plate 01, and improve the filtration efficiency; the cylindrical boss-shaped flow-guiding structure can block larger particles to a certain extent while ensuring that the liquid passes through smoothly.

[0042] The suction drain pipe 02 is a plastic pipe with a sealed bottom port 021 and an upper port 022 connected to a suction device (not shown in the figure). The pipe wall has at least one set of radially symmetrically distributed slits 023. The main function of the suction drain pipe 02 is to provide a channel for suctioning liquids and gases. Its bottom sealing design prevents liquid leakage, while the connection between the upper port 022 and the suction device ensures the transmission of suction power. The slits 023 on the pipe wall are the key parts through which the drain plate 01 penetrates and connects. The slits 023 enable communication between the drain plate 01 and the suction drain pipe 02, forming a complete suction channel.

[0043] During assembly, the drainage plate 01 rotates around the suction drainage pipe 02 and penetrates the suction drainage pipe 02 through the cut 023. The connection between the two is sealed with a sealing element 03, forming a connected suction channel. This assembly method greatly increases the contact area between the drainage plate 01 and the surrounding medium. Compared with the traditional straight drainage structure, the assembly method of this embodiment allows the drainage plate 01 to cover a larger area within a limited space, thereby improving the accumulation capacity of liquids and gases. More liquids and gases can be collected in the drainage plate 01 and then discharged through the suction channel, effectively improving the efficiency of solid-liquid separation. On the other hand, the connected suction channel provides a smooth path for the flow of liquids and gases. The negative pressure generated by the suction device can quickly extract the liquids and gases collected by the drainage plate 01, avoiding the accumulation of liquids and gases in the drainage plate 01 and ensuring the continuity and stability of the entire solid-liquid separation process.

[0044] Understandably, existing drainage structures lack adaptive adjustment capabilities and cannot optimize their drainage area for solid-liquid mixtures of different properties. For example... Figure 5 The embodiment shown provides a preferred method for the penetration relationship between the drainage plate 01 and the suction drainage pipe 02, including a one-to-one (corresponding) method. Figure 5 (1) part), one-to-many (corresponding) Figure 5 (Part 2) and many-to-one (corresponding) Figure 5 (3) part) or many-to-many (corresponding) Figure 5 (Part 4). This diverse penetration relationship can be flexibly adjusted according to the concentration, particle size, and flowability of the solid-liquid mixture. For example, when the concentration of the solid-liquid mixture is high and the solid particles are large, a one-to-many penetration relationship can be used to increase the connection points between the drainage plate 01 and the suction drainage pipe 02, thereby improving the drainage capacity; when the solid-liquid mixture has good flowability, a one-to-one or many-to-one penetration relationship can be used to simplify the structure and reduce costs.

[0045] The drainage plate 01 rotates several times around the suction drain pipe 02 to form a spiral structure. This spiral structure guides the liquid flow along the spiral direction, making the liquid distribution within the drainage plate 01 more uniform, avoiding localized accumulation, and improving liquid flow efficiency. Furthermore, the spiral structure formed by the drainage plate 01 can be of two forms: a gapless spiral structure and a gapped spiral structure. The gapless spiral structure provides a continuous and complete liquid flow channel, ensuring that the liquid does not leak or divert during flow, making it suitable for scenarios with high liquid sealing requirements. The gapped spiral structure, on the other hand, allows the liquid to flow laterally to a certain extent between the spiral coils, increasing the flexibility of liquid flow, and is suitable for scenarios where the liquid needs to mix or diffuse within the drainage plate 01. Even further, when the drainage plate 01 is a gapped spiral structure, the spacing between adjacent spiral coils ranges from [10mm, 50mm], preferably 10mm, 20mm, 30mm, 40mm, or 50mm. The choice of different spacings has a significant impact on the technical performance of the drainage plate 01. When the spacing is small, such as 10mm, the liquid flow channel between the spiral coils is relatively narrow, which enhances the guiding effect of liquid flow in the spiral direction and improves the uniformity of liquid distribution, but may increase the resistance to liquid flow. When the spacing is large, such as 50mm, the lateral flow space of liquid between the spiral coils increases, which is beneficial to improving the liquid flow efficiency, but may reduce the uniformity of liquid distribution to some extent. Therefore, in practical applications, it is necessary to rationally select the spacing between adjacent spiral coils based on specific drainage requirements, liquid properties, and operating environment factors to achieve the best drainage effect.

[0046] The assembled solid-liquid separation drainage plate and pipe assembly also includes a flow-guiding mesh interlayer, which rotates synchronously around the suction drainage pipe 02 along with the drainage plate 01. The flow-guiding mesh interlayer has a cross-grid structure, which allows for preliminary filtration of the liquid, blocking larger particles of impurities, reducing the burden on the fiber filter cloth, and improving filtration accuracy and efficiency. Furthermore, the mesh size of the flow-guiding mesh interlayer ranges from [2μm, 5μm], preferably 2μm, 3μm, 4μm, and 5μm. Through the structural design of the flow-guiding mesh interlayer, this embodiment forms a three-stage filtration mechanism. During drainage, the liquid sequentially passes through the flow-guiding mesh interlayer, the fiber filter cloth, and the flow-guiding structure into the suction channel. This three-stage filtration mechanism works in tandem, layer by layer, greatly improving the solid-liquid separation effect, resulting in higher quality discharged liquid and meeting the stringent requirements for liquid purity in different scenarios. Furthermore, the flow-guiding mesh interlayer can be fixed between adjacent spiral coils using detachable plastic clips. The detachable plastic clips make the installation and removal of the flow guide mesh interlayer more convenient and quick, reducing installation costs and maintenance difficulty. When the flow guide mesh interlayer is damaged or needs to be replaced, it can be easily disassembled and replaced without large-scale disassembly of the entire assembly.

[0047] More specifically, the width of the drainage board 01 ranges from [10cm to 30cm], preferably 10cm, 15cm, 20cm, 25cm, or 30cm. The thickness of the drainage board 01 ranges from [3mm to 6mm], preferably 3mm, 4mm, 5mm, or 6mm.

[0048] More specifically, the diameter of the suction drain pipe 02 is in the range of [30cm, 150cm], preferably 30cm, 40cm, 50cm, 60cm, 70cm, 80cm, 90cm, 100cm, 110cm, 120cm, 130cm, 140cm, or 150cm.

[0049] More specifically, the wall of the suction drain pipe 02 is provided with at least two sets of the cuts 023, and the axial spacing between adjacent sets is in the range of [10cm to 100cm], preferably 10cm, 20cm, 30cm, 40cm, 50cm, 60cm, 70cm, 80cm, 90cm, and 100cm.

[0050] Example 2:

[0051] This embodiment provides a solid-liquid separation device, including at least one assembled solid-liquid separation drainage plate and pipe assembly as described in Embodiment 1. The upper port 022 of the suction drainage pipe 02 is connected to one or more horizontally arranged discharge pipes (not shown in the figure). The discharge pipes (not shown in the figure) are connected to the suction device (not shown in the figure). This connection method allows the suction device to simultaneously perform suction operations on multiple drainage plate and pipe assemblies, improving the overall processing capacity of the device. The suction device uses positive or negative pressure suction to ensure that the liquid separated from the solid-liquid mixture can be further processed to meet discharge or reuse standards. More specifically, the suction device is configured as a vacuum pump or a water pump. A vacuum pump, by generating negative pressure, can quickly and effectively extract the liquid and gas collected in the drainage plate and pipe assembly, suitable for situations requiring high suction speed and high gas content in the solid-liquid mixture; a water pump, by providing power, extracts the liquid, suitable for situations with high liquid viscosity and requiring greater suction force. Depending on different working conditions and the characteristics of the solid-liquid mixture, a suitable suction device can be selected to achieve the best solid-liquid separation effect. It is understandable that this embodiment, through the use of prefabricated assembled solid-liquid separation drainage plate and pipe assemblies and reasonable equipment connection and suction equipment selection, has achieved significant improvements in the solid-liquid separation equipment in terms of processing efficiency, processing effect, maintenance management and operating cost, and has high practical value.

[0052] like Figure 6As shown, the solid-liquid separation device also includes an outer shell 04, which is a cylinder or cuboid with through holes or mesh. This diverse shape design can adapt to different installation spaces and working conditions. For example, in relatively long and regular spaces, the cuboid outer shell can better fit the spatial layout and improve space utilization; while in scenarios requiring uniform force or specific requirements for fluid flow, the cylindrical outer shell has better mechanical properties and fluid characteristics. More specifically, the shape of the through holes can be at least circular, square, triangular, or a combination thereof. Different shapes of through holes have different functions. For example, circular through holes have better stress distribution characteristics, can withstand greater pressure, and have relatively low resistance when fluid passes through, making them suitable for situations requiring high fluid flow smoothness. Square through holes have a regular structure, are easy to process and install, and can provide a larger opening area for the same area, which is beneficial for the entry and separation of solid-liquid mixtures. The unique shape of triangular through holes can, to some extent, change the flow direction of the fluid, increase the contact opportunity between the fluid and the drainage plate assembly, and improve the solid-liquid separation effect. The combination-shaped through-holes can be combined according to actual needs, giving full play to the advantages of various shapes and achieving more efficient solid-liquid separation. The assembled solid-liquid separation drainage plate and pipe assembly is installed inside the outer shell 04, which not only protects the assembled solid-liquid separation drainage plate and pipe assembly from interference and damage from the external environment, but also, through the constraint of the outer shell 04, allows the solid-liquid mixture to contact the drainage plate and pipe assembly more concentratedly, thereby improving separation efficiency.

[0053] like Figures 7-9 As shown, the solid-liquid separation device also includes a buoyancy component 05, fixed to the suction drain pipe 02. In this embodiment, by setting the buoyancy component 05, the assembled solid-liquid separation drain plate assembly achieves the function of floating on the water or liquid surface within the treated storage tank. In practical applications, the liquid level in the storage tank may change as the treatment process progresses. Through the action of the buoyancy component 05, the solid-liquid separation device can automatically adapt to changes in liquid level, always maintaining a suitable depth. This not only avoids the problem of the solid-liquid separation device being unable to effectively contact the solid-liquid mixture due to excessively low liquid level, leading to low treatment efficiency, but also prevents the solid-liquid separation device from being completely submerged in liquid due to excessively high liquid level, increasing the load on the equipment and the risk of damage. Furthermore, the material selection for the buoyancy component 05 can include at least hollow plastic floats, foamed foam bodies, hollow plastic pipes, plastic plates, and bamboo. Even further, the buoyancy component 05 can be a single unit (corresponding to...). Figure 9 The middle (1) and (2) parts can also be in the form of a combination of multiple parts (corresponding to Figure 9(Parts 3, 4, 5, and 6). Hollow plastic floats have advantages such as simple structure, high strength, and corrosion resistance. When set as a whole float, they can provide stable buoyancy. If set as multiple combined and spliced, they can meet actual needs and flexibly adjust the size and shape of buoyancy, making them suitable for solid-liquid separation devices of different sizes and shapes. Foamed foam has the characteristics of low density and high buoyancy, and is low in cost and easy to process and mold, providing reliable buoyancy support for the device. Hollow plastic pipes and plastic plates also have the characteristics of being lightweight and high-strength. Through reasonable combination and installation, they can meet the buoyancy requirements of different devices. Bamboo, as a natural floating material, has the advantages of being widely available, environmentally friendly, and renewable. After proper treatment, it can provide stable buoyancy for the device, while conforming to the concept of sustainable development. These diverse buoyancy component material choices provide more possibilities for the design and application of solid-liquid separation devices, and can meet the needs of different scenarios and users.

[0054] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to this application. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to this application.

[0055] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0056] The foregoing description is merely an exemplary embodiment of this disclosure and should not be construed as limiting the scope of this disclosure. Any equivalent changes and modifications made in accordance with the teachings of this disclosure shall still fall within the scope of this disclosure. Those skilled in the art will readily conceive of embodiments of this disclosure upon considering the specification and practicing the disclosure herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not described herein. The specification and embodiments are to be considered exemplary only, and the scope and spirit of this disclosure are defined by the claims.

Claims

1. A prefabricated solid-liquid separation drainage plate and pipe assembly, characterized in that: Includes a drainage board (01) and a suction drain pipe (02); The drainage board (01) is provided with a flow guiding structure extending along the length direction, and its outer surface is covered with fiber filter cloth to achieve solid-liquid separation. The suction drain pipe (02) is a plastic pipe with a sealed bottom port (021) and a suction device connected to the upper port (022). The pipe wall is provided with at least one set of radially symmetrically distributed cuts (023). The drainage plate (01) rotates around the suction drain pipe (02) during assembly to increase the contact area with the surrounding medium, and penetrates the suction drain pipe (02) through the cut (023). The connection between the two is sealed with a sealing element (03) to form a connected suction channel, thereby improving the efficiency of liquid and gas accumulation, separation and flow. The penetration relationship between the drainage board (01) and the suction drainage pipe (02) is one-to-one, one-to-many, many-to-one, or many-to-many.

2. The prefabricated solid-liquid separation drain board pipe assembly according to claim 1, characterized in that: The drainage plate (01) rotates around the suction drainage pipe (02) several times to form a spiral structure; The spiral structure includes a gapless spiral structure and a gapped spiral structure.

3. The prefabricated solid-liquid separation drain board pipe assembly according to claim 2, characterized in that: It also includes a flow-guiding mesh interlayer, which rotates synchronously around the suction drain pipe (02) with the drainage plate (01); the flow-guiding mesh interlayer has a cross-grid structure; During drainage, the liquid sequentially passes through the guide mesh interlayer, the fiber filter cloth, and the guide structure into the suction channel.

4. The prefabricated solid-liquid separation drain board pipe assembly according to claim 1, characterized in that: The flow guiding structure is in the form of a trough, a cross-layered plastic strip mesh, or a cylindrical boss.

5. The prefabricated solid-liquid separation drain board pipe assembly according to claim 1, characterized in that: The width of the drainage board (01) ranges from [10cm to 30cm], and the thickness ranges from [3mm to 6mm].

6. The prefabricated solid-liquid separation drain board pipe assembly according to claim 1, characterized in that: The diameter range of the suction drain pipe (02) is [30cm, 150cm].

7. The prefabricated solid-liquid separation drain board pipe assembly according to claim 1, characterized in that: The wall of the suction drain pipe (02) is provided with at least two sets of the cuts (023), and the axial distance between adjacent sets is in the range of [10cm, 100cm].

8. A solid-liquid separation device, characterized in that: Includes at least one assembled solid-liquid separation drainage plate and pipe assembly as described in any one of claims 3-7; The upper port (022) of the suction drain pipe (02) is connected to one or more horizontally arranged discharge pipes, and the discharge pipes are connected to the suction device; The suction device uses either positive or negative pressure suction.

9. A solid-liquid separation device according to claim 8, wherein, Also includes: The outer shell (04) is a cylinder or cuboid with through holes or mesh; The assembled solid-liquid separation drainage pipe assembly is installed inside the outer casing (04).

10. A solid-liquid separation device according to claim 9, wherein Also includes: The buoyancy component (05) is fixed to the suction drain pipe (02).

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