An assembled flocculator

Abstract

The utility model relates to the technical field of water treatment equipment provides an assembly type flocculator, including two water distribution units, grid unit and hopper unit, two water distribution units are arranged in layers from top to bottom, and the water distribution unit is formed with overflow channel to supply water body flow; The grid unit is clamped between the two water distribution units and is used for disturbing the water flow to promote flocculation reaction, the grid unit is equipped with regular arrangement overflow hole, and a plurality of grid structures for adjusting water flow turbulence intensity are arranged in it; The hopper unit is arranged below the lower water distribution unit to collect and discharge the floc sediment produced in the flocculation process, wherein the water distribution unit, the grid unit and the hopper unit are all independent prefabricated modules, and the modules are detachably connected through the connecting structure to constitute the flocculator. The assembly type flocculator of the utility model is convenient to install on site, thereby greatly shortening the construction or reconstruction period of water plant, and meeting the demand of modern water treatment project on efficient construction.

Description

Technical Field

[0001] This utility model relates to the technical field of water treatment equipment, specifically to a prefabricated flocculant. Background Technology

[0002] Flocculation and sedimentation is a key step in conventional water treatment processes. Its principle involves adding coagulants to the water, causing suspended particles and colloidal substances to destabilize and colloidally aggregate, gradually forming large, settleable flocs. Ultimately, solid-liquid separation is achieved under gravity. Currently, most water plants still commonly use cast-in-place reinforced concrete structures to build hydraulic flocculation tanks.

[0003] While this traditional construction method offers advantages such as structural stability and durability, its inherent drawbacks are becoming increasingly apparent, making it difficult to meet the comprehensive requirements of modern water treatment projects for construction efficiency, operational precision, flexibility, and sustainable development. Firstly, the construction of reinforced concrete flocculation tanks involves a series of complex wet operations, including formwork, rebar tying, concrete pouring, curing, and formwork removal. The concrete curing period is typically no less than 28 days, resulting in an overall construction cycle of several months. This severely restricts the implementation progress of new or expanded water plant projects and extends the investment recovery period. Secondly, the flocculation effect is highly dependent on the precise control of hydraulic parameters such as channel dimensions, folded plate or grid spacing, and installation angles. Manual on-site construction easily leads to dimensional deviations, surface roughness, and accumulated installation errors, making it difficult to guarantee structural consistency and geometric accuracy. This results in uneven flow field distribution, short-circuiting, vortices, or dead water zones, affecting floc growth and reducing the stability of effluent water quality. Thirdly, reinforced concrete structures are permanent rigid structures, integrally cast with the foundation; once completed, they cannot be adjusted or partially replaced. When water plants face expansion, process upgrades, or equipment aging and requiring repair, they often need to be completely demolished and rebuilt. This not only incurs high costs and wastes a large amount of resources and construction waste, but also leads to water outages and production stoppages, resulting in significant social and economic impacts. Furthermore, the construction process is limited by climatic conditions such as low temperatures and rain or snow. In cold regions or severe weather, it is difficult to guarantee concrete quality and curing is challenging, further compressing the effective construction window and affecting project schedules and regional adaptability. Therefore, improvements and developments are needed to address these issues. Utility Model Content

[0004] This invention provides a prefabricated flocculant to solve the problems existing in the background art. The specific implementation is as follows: A prefabricated flocculant includes two water distribution units, which are stacked one on top of the other, and the water distribution units form a flow channel for water circulation. A grid unit is sandwiched between two water distribution units to disturb the water flow and promote flocculation. The grid unit is provided with regularly arranged flow holes and has multiple grid structures arranged inside to adjust the intensity of water flow turbulence. A mud hopper unit is located below the lower water distribution unit to collect and discharge floc sediment generated during the flocculation process. The water distribution unit, grid unit, and sludge hopper unit are all independent prefabricated modules, and the modules are detachably connected by a connecting structure to form a flocculant.

[0005] As a further embodiment of this utility model, the connection structure includes a positioning groove and a positioning block. The positioning groove is located on the top of each module, and the positioning block is located on the bottom of the corresponding module. When adjacent modules are assembled, the positioning block of the lower module is inserted into the positioning groove of the upper module to achieve positioning and connection between modules.

[0006] As a further embodiment of this invention, the inner shape of the positioning groove matches the outer shape of the positioning block.

[0007] As a further embodiment of this utility model, the mating surface of the module is provided with an annular ridge-like protrusion. The ridge-like protrusion protrudes from the top of the module. When the upper and lower modules are assembled, the ridge-like protrusion tightly abuts against the inner wall of the positioning block of the corresponding module to achieve a sealed connection between adjacent modules.

[0008] As a further embodiment of this utility model, the ridge-like protrusions are arranged to surround the positioning groove.

[0009] As a further embodiment of this utility model, the outer wall of each module is connected to the positioning groove via a guide arc surface, and the corresponding end of the positioning block is provided with a guide angle. When adjacent modules are assembled, the guide angle contacts the guide arc surface and slides along the guide arc surface to achieve rapid assembly of the positioning block and the positioning groove.

[0010] As a further embodiment of this utility model, the water distribution unit is formed by splicing four plates to form a rectangular frame structure with a quadrilateral cross-section. The side wall of the rectangular frame is provided with water passage holes, which are connected to the flow channel formed by the frame.

[0011] As a further embodiment of this utility model, the water passages of the upper and lower water distribution units are staggered in the circumferential direction, and the two water distribution units are not located in the same vertical projection plane after assembly.

[0012] As a further embodiment of this invention, the diameter of the flow holes in the grid unit is set to decrease in a gradient from top to bottom.

[0013] As a further embodiment of this utility model, each module is made of a corrosion-resistant material, such as fiberglass, engineering plastic, or stainless steel.

[0014] Due to the adoption of the above technical solutions, the beneficial technical effects of this utility model are: 1. This utility model sets the water distribution unit, grid unit and mud hopper unit as independent modules, and realizes rapid disassembly and assembly through the connection structure, so as to solve the wet operation process of traditional concrete pouring, such as formwork and curing, which takes several months. On-site installation is convenient, thereby greatly shortening the construction period of water plant construction or expansion and renovation, and adapting to the demand of modern water treatment projects for efficient construction. 2. This utility model arranges the water passages of the upper and lower water distribution units in a staggered manner to form a baffled flow channel, and combines it with a grid flow passage with a reduced gradient, thereby precisely controlling the intensity of water flow turbulence and residence time to promote the full collision and growth of flocs, avoid short flow and dead water zone in the flocculant, and thus significantly improve the flocculation efficiency and the stability of the effluent water quality. 3. Each functional unit of this utility model is a detachable and connectable independent module. When the water plant needs to expand its capacity, adjust its process, or when the components are aging, there is no need to completely dismantle and rebuild it. Only the corresponding modules need to be replaced or added to complete the upgrade. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a prefabricated flocculant in a specific embodiment of the present utility model; Figure 2 This is a cross-sectional view of a prefabricated flocculant in a specific embodiment of this utility model; Figure 3 This utility model Figure 2 Enlarged view of the structure of section A; Figure 4 This is a schematic diagram of the water distribution unit in a specific embodiment of the present invention; Figure 5 This is a schematic diagram of the mud bucket unit in a specific embodiment of the present invention.

[0016] Explanation of reference numerals in the attached figures: 10. Water distribution unit; 11. Water passage hole; 12. Flow channel; 20. Grid unit; 21. Flow hole; 30. Sludge hopper unit; 31. Sludge discharge pipe; 40. Positioning groove; 50. Positioning block; 60. Rounded corner; 70. Chamfer; 80. Guide arc surface; 90. Ridge protrusion. Detailed Implementation

[0017] The specific embodiments of this utility model are described below with reference to the accompanying drawings and examples: It should be noted that the structures, proportions, sizes, etc. shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0018] Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in this specification are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0019] Combination Figures 1 to 5 As shown, this utility model provides a prefabricated flocculant, which is mainly used in the flocculation reaction stage of water treatment processes and can be widely used in waterworks, sewage treatment plants and other scenarios.

[0020] The prefabricated flocculant includes two water distribution units 10, a grid unit 20, and a sludge hopper unit 30. The two water distribution units 10 are stacked one on top of the other, and each water distribution unit 10 forms a flow channel 12 to evenly distribute the water flow and guide it into the flocculation reaction zone. The grid unit 20 is sandwiched between the two water distribution units 10 and is used to disturb the water flow to promote the collision and aggregation of small flocs, thereby enhancing the flocculation reaction effect. The grid unit 20 is provided with regularly arranged flow holes 21 to generate stepwise disturbances to the water flow, effectively adjusting the intensity of water flow turbulence and controlling the distribution of shear force. The sludge hopper unit 30 is located below the lower water distribution unit 10 and is used to collect and discharge the floc sediment generated during the flocculation process, and discharge the sludge through the sludge discharge port at the bottom, thereby ensuring the stability of the water flow in the flocculation zone.

[0021] The water distribution unit 10, the grid unit 20, and the mud hopper unit 30 are all independent prefabricated modules. The modules are detachably connected by a connecting structure to form a flocculant, thereby achieving the purpose of standardized factory production and rapid on-site assembly, and thus significantly improving construction efficiency and the controllability of project quality.

[0022] Preferably, each module is made of corrosion-resistant materials, such as fiberglass (FRP), engineering plastics (such as PP, PVC) or stainless steel, to adapt to long-term underwater operating environments and improve equipment durability.

[0023] In one specific embodiment, such as Figure 4As shown, the water distribution unit 10 is a rectangular frame structure with a quadrilateral cross-section, formed by splicing four plates. A flow channel 12 is formed inside the rectangular frame, and water passage holes 11 are provided on its side wall. The water passage holes 11 are connected to the flow channel 12 and serve as channels for water to enter and exit.

[0024] Preferably, the water passages 11 of the upper and lower water distribution units 10 are staggered in the circumferential direction and are not located in the same vertical projection plane after assembly. For example, the upper water passage 11 is located on the front side wall, and the corresponding lower passage is located on the right side wall, so that the water flow changes direction as it passes through each stage, forming a "Z"-shaped or spiral flow path, effectively extending the actual residence time of the water flow, thereby enhancing the sufficiency of the flocculation reaction, avoiding the generation of short-circuit and dead zones, and thus improving the stability of flocculation.

[0025] In one specific embodiment, such as Figure 2 As shown, there are three grid units 20, which are arranged between the two water distribution units 10 and stacked vertically to form a multi-level grid structure. This structure is used to disturb the water flow, adjust the turbulence intensity, and promote effective floc collision. In actual production and application, by reasonably designing the size of the flow holes 21, moderate turbulence can be formed in the early stage of the flocculation reaction, promoting the destabilization of colloidal particles in the water and the frequent collision and aggregation of small flocs. In the later stage of the reaction, the shear intensity of the water flow is gradually reduced, thereby effectively preventing the large flocs that have been generated from breaking due to hydraulic impact.

[0026] Preferably, the diameter of the flow holes 21 of the grid unit 20 is arranged in a gradient decreasing from top to bottom, that is, the upper hole diameter is larger and the lower hole diameter is smaller, in order to adapt to the gradually increasing size of the flocs and provide a low shear force environment to avoid the breakage of large flocs, thereby improving the flocculation efficiency.

[0027] In one specific embodiment, such as Figure 5 As shown, the mud hopper unit 30 has an inverted cone or inclined plate structure, and a mud discharge pipe 31 is provided at the bottom. The mud discharge pipe 31 has a mud discharge port, which is connected to an electric or pneumatic mud discharge valve to discharge the deposited flocculent sludge at regular intervals or continuously, thereby avoiding the impact of mud accumulation on the water flow pattern.

[0028] In one specific embodiment, such as Figure 2 , Figure 3 As shown, the modules are connected by a detachable connection structure to achieve rapid assembly and positioning. The connection structure includes a positioning groove 40 on the top of each module and a positioning block 50 on the bottom of each module. When the upper and lower modules are stacked, the positioning block 50 of the lower module is inserted into the positioning groove 40 of the upper module, thereby achieving axial alignment and preliminary positioning.

[0029] Furthermore, the inner cavity shape of the positioning groove 40 matches the outer shape of the positioning block 50. Preferably, the inner cavity of the positioning groove 40 has a rectangular cross-section, and the outer shape of the positioning block 50 corresponds to it. After the two are inserted and matched, they can effectively limit lateral displacement, thereby ensuring that the connection between adjacent modules is stable and without loosening or shaking, thereby improving the assembly accuracy and stability of the overall structure.

[0030] To achieve a leak-proof seal between adjacent modules, an annular ridge-like protrusion 90 is provided on the mating surface of the module. The ridge-like protrusion 90 protrudes from the top of the module and is arranged around the periphery of the positioning groove 40. When the modules are assembled, the ridge-like protrusion 90 abuts tightly against the inner wall of the positioning block 50 of the corresponding module to form a surface seal between the two adjacent modules, thereby effectively preventing water leakage from the connection.

[0031] Furthermore, in terms of assembly guidance, a guide arc surface 80 is provided between the outer wall of each module and the positioning groove 40, and a chamfer 70 is provided at the top of the positioning block. When the upper and lower modules are docked, the chamfer 70 first contacts the guide arc surface 80 and slides along the guide arc surface 80 to automatically correct the position, thereby guiding the positioning block 50 to be smoothly inserted into the positioning groove 40, thus realizing rapid assembly between adjacent modules, which is especially suitable for space-constrained or high-altitude operation scenarios.

[0032] Furthermore, the end of the positioning block 50 is also provided with a rounded corner 60, which is provided on the other end face of the positioning block 50 relative to the chamfer 70, so as to further enhance the guiding performance during the assembly process, reduce assembly resistance, and avoid damage caused by the edge collision of the two modules.

[0033] The working principle of this invention is as follows: When the flocculant is working, raw water first enters the flocculant through the upper water distribution unit 10. The raw water enters the flow channel 12 through the water passage 11, and under the disturbance of the grid unit 20, turbulence is formed, the suspended particles destabilize and gradually agglomerate into large flocs. After the water flows through the grid structure of the multi-layer grid unit 20 and reacts step by step, it enters the sludge hopper unit 30. The large flocs settle under the action of gravity and are discharged from the sludge discharge port. The clarified water flows out from the lower water distribution unit 10 and enters the subsequent sedimentation tank.

[0034] Many other changes and modifications can be made without departing from the concept and scope of this utility model. It should be understood that this utility model is not limited to the specific embodiments, and the scope of this utility model is defined by the appended claims.

Claims

1. A prefabricated flocculant, characterized in that, It includes two water distribution units (10), which are stacked one on top of the other. The water distribution units (10) form a flow channel (12) for water circulation. A grid unit (20) is sandwiched between two water distribution units (10) to disturb the water flow in order to promote flocculation reaction. The grid unit (20) is provided with regularly arranged flow holes (21) and multiple grid structures are arranged inside to adjust the intensity of water flow turbulence. Mud hopper unit (30), which is located below the lower water distribution unit (10), is used to collect and discharge the floc sediment generated during the flocculation process; The water distribution unit (10), grid unit (20) and mud hopper unit (30) are all independent prefabricated modules, and the modules are detachably connected by a connecting structure to form a flocculant.

2. The prefabricated flocculant according to claim 1, characterized in that, The connection structure includes a positioning groove (40) and a positioning block (50). The positioning groove (40) is located on the top of each module, and the positioning block (50) is located on the bottom of the corresponding module. When adjacent modules are assembled, the positioning block (50) of the lower module is inserted into the positioning groove (40) of the upper module to realize the positioning and connection between modules.

3. The prefabricated flocculant according to claim 2, characterized in that, The inner shape of the positioning groove (40) matches the outer shape of the positioning block (50).

4. A prefabricated flocculant according to claim 2, characterized in that, The mating surface of the module is provided with an annular ridge-like protrusion (90). The ridge-like protrusion (90) protrudes from the top of the module. When the upper and lower modules are assembled, the ridge-like protrusion (90) abuts tightly against the inner wall of the positioning block (50) of the corresponding module to achieve a sealed connection between the two adjacent modules.

5. A prefabricated flocculant according to claim 4, characterized in that, The ridge-like protrusions (90) are arranged around the positioning groove (40).

6. A prefabricated flocculant according to claim 2, characterized in that, The outer wall of each module is connected to the positioning groove (40) by a guide arc surface (80). The corresponding end of the positioning block (50) is provided with a guide angle (70). When adjacent modules are assembled, the guide angle (70) contacts the guide arc surface (80) and slides along the guide arc surface (80) to achieve rapid assembly of the positioning block (50) and the positioning groove (40).

7. A prefabricated flocculant according to claim 1, characterized in that, The water distribution unit (10) is a rectangular frame structure with a quadrilateral cross section formed by splicing four plates. The side wall of the rectangular frame is provided with water passage holes (11), which are connected to the flow channel (12) formed by the frame.

8. A prefabricated flocculant according to claim 7, characterized in that, The water passages (11) of the upper and lower water distribution units (10) are staggered in the circumferential direction, and the two water distribution units (10) are not in the same vertical projection plane after assembly.

9. A prefabricated flocculant according to claim 1, characterized in that, The diameter of the flow holes (21) of the grid unit (20) is set to decrease in a gradient from top to bottom.

10. A prefabricated flocculant according to claim 1, characterized in that, Each module is made of a corrosion-resistant material, such as fiberglass, engineering plastic, or stainless steel.

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