Grid for flocculation basin, flocculation module and assembled flocculation basin

Abstract

The invention relates to the technical field of water treatment, in particular to a grid for a flocculation basin, a flocculation module and an assembled flocculation basin. The grid for the flocculation basin comprises a body, a plurality of rotational flow fins and a plurality of first arc-shaped fins, a plurality of meshes are formed in the body, the meshes are arranged in an array mode, and each mesh pair corresponds to a plurality of rotational flow fins and a plurality of first arc-shaped fins; wherein the rotational flow fins corresponding to the meshes are connected to the upper side of the body and arranged around the edges of the meshes at intervals, and the rotational flow fins bend and extend from the edges of the meshes to the areas outside the meshes; the first arc-shaped fins corresponding to the meshes are connected to the lower side of the body and arranged around the edges of the meshes at intervals. By adopting the grid for the flocculation basin, water flow can form streaming after passing through the fins, and a vortex area is formed behind the fins, so that a proper hydraulic condition is provided for flocculation, the effective collision frequency of particles is increased, and the flocculation effect is optimized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water treatment, in particular to a grid for flocculation tank, a flocculation module and a spliced flocculation tank. BACKGROUND

[0002] Flocculation is one of the core links in the water treatment process, and its effect is directly related to the operation load of the subsequent sedimentation and filtration units and the final water quality. At present, most of the water treatment systems at home and abroad adopt steel-concrete structure fixed flocculation tank. Although this technology has a long application history and mature technology, its inherent design mode and structural characteristics have problems such as poor flocculation effect when facing complex working conditions in actual operation. SUMMARY

[0003] The purpose of the present application includes providing a grid for flocculation tank, a flocculation module and a spliced flocculation tank, by using the grid for flocculation tank, the water flow can form a flow around the wing piece, and a vortex area is formed behind the wing piece, thereby providing suitable hydraulic conditions for flocculation, increasing the effective collision times of particles, and thereby optimizing the flocculation effect.

[0004] By adjusting the flow state, the number of small eddies in the water flow is increased; as the flocculation series increases, the flow rate of the water flow through the mesh gradually decreases, forming a good gradually decreasing reaction environment.

[0005] Embodiments of the present application can be implemented as follows: In a first aspect, the present application provides a grid for flocculation tank, the grid for flocculation tank comprising a body, a plurality of rotational flow wing pieces and a plurality of first arc-shaped wing pieces; The body is provided with a plurality of mesh holes, the plurality of mesh holes are arranged in an array, and each mesh hole corresponds to a plurality of rotational flow wing pieces and a plurality of first arc-shaped wing pieces; Each rotational flow wing piece corresponding to each mesh hole is connected to the upper side of the body and is arranged at intervals around the edge of the mesh hole, and the rotational flow wing piece extends and bends from the edge of the mesh hole towards the area outside the mesh hole; each first arc-shaped wing piece corresponding to each mesh hole is connected to the lower side of the body and is arranged at intervals around the edge of the mesh hole.

[0006] In an optional embodiment, the mesh hole is a hexagonal hole, and the mesh hole corresponds to six rotational flow wing pieces and six first arc-shaped wing pieces; Each edge of the upper end of the mesh hole corresponds to one rotational flow wing piece, and each edge of the lower end of the mesh hole corresponds to one first arc-shaped wing piece.

[0007] In an optional embodiment, the first arc-shaped wing piece is made of a memory alloy, and when the water temperature contacted by the first arc-shaped wing piece decreases, the included angle between the first arc-shaped wing piece and the horizontal plane becomes smaller.

[0008] In an optional embodiment, the first arc-shaped fin is made of a nickel-titanium-based memory alloy, and the first arc-shaped fin is used to swing between 45 degrees and 15 degrees when the water temperature it contacts changes in its phase transition temperature interval.

[0009] In a second aspect, the present application provides a flocculation module, which comprises a fixed grid for a flocculation tank, a movable assembly, and the grid for the flocculation tank as described above; The grid for the flocculation tank is located above the fixed grid for the flocculation tank and is movably connected to the fixed grid for the flocculation tank through the movable assembly; The fixed grid for the flocculation tank is provided with a through hole, and the first arc-shaped fin of the grid for the flocculation tank extends to the side of the fixed grid for the flocculation tank away from the grid for the flocculation tank through the through hole; The movable assembly is used to drive the grid for the flocculation tank to move relative to the fixed grid for the flocculation tank under the action of an external force, so that the mesh holes on the grid for the flocculation tank are opposite to the through holes on the fixed grid for the flocculation tank, or the mesh holes on the grid for the flocculation tank are arranged in a staggered manner with the through holes on the fixed grid for the flocculation tank.

[0010] In an optional embodiment, the side of the fixed grid for the flocculation tank away from the grid for the flocculation tank is provided with a second arc-shaped fin; When the mesh holes on the grid for the flocculation tank are opposite to the through holes on the fixed grid for the flocculation tank, the first arc-shaped fin and the second arc-shaped fin are arranged in sequence along the outer edge of the through hole.

[0011] In an optional embodiment, the mesh holes and the through holes are both hexagonal holes, and the mesh holes correspond to six cyclone fins and two first arc-shaped fins, and each edge of the upper end of the mesh hole is provided with a cyclone fin; the lower end of the through hole is provided with four second arc-shaped fins; When the mesh holes on the grid for the flocculation tank are opposite to the through holes on the fixed grid for the flocculation tank, each edge of the lower end of the through hole corresponds to a first arc-shaped fin or a second arc-shaped fin.

[0012] In an optional embodiment, the slide rail is connected to the fixed grid for the flocculation tank, and the grid for the flocculation tank is slidably connected to the slide rail; the rotary connecting seat is connected to the grid for the flocculation tank; The transmission rod is rotatably connected to the rotary connecting seat, and the transmission rod is threadedly connected to the movable block connected to the grid for the flocculation tank; The driving rod is rotatably connected to the fixed grid for the flocculation tank and is in transmission connection with the transmission rod; The driving rod is used to rotate under the action of an external force, drive the transmission rod to rotate, and thus drive the movable block and the grid for the flocculation tank to slide relative to the slide rail, and the direction in which the grid for the flocculation tank slides relative to the slide rail is a horizontal direction.

[0013] In a third aspect, the present application provides a kind of assembled flocculation tank, and the assembled flocculation tank includes multiple vertical shafts, multiple vertical shafts are arranged in array or side by side, and multiple vertical shafts are communicated along the flow direction; Multiple flocculation modules are arranged in each vertical shaft, multiple flocculation modules are vertically spaced, and multiple flocculation modules are horizontally arranged.

[0014] In an optional embodiment, two adjacent vertical shafts along the flow direction are communicated by flow holes opened at the critical position of the two vertical shafts, and multiple flow holes increase along the flow direction in sequence.

[0015] The beneficial effects of the grid for flocculation tank, flocculation module and assembled flocculation tank provided by the embodiments of the present application include: The grid for flocculation tank includes a body, multiple cyclone fins and multiple first arc-shaped fins; the body is provided with multiple mesh holes, multiple mesh holes are arranged in array, and each mesh hole corresponds to multiple cyclone fins and multiple first arc-shaped fins; wherein, the cyclone fin corresponding to each mesh hole is connected to the upper side of the body and is arranged at intervals around the edge of the mesh hole, and the cyclone fin is curved and extends from the edge of the mesh hole to the area outside the mesh hole; the first arc-shaped fin corresponding to each mesh hole is connected to the lower side of the body and is arranged at intervals around the edge of the mesh hole. By using the grid for flocculation tank, the water flow can form a flow around the fin, and a vortex area is formed behind the fin, thereby providing suitable hydraulic conditions for flocculation, increasing the effective collision times of particles, and optimizing the flocculation effect. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0017] Figure 1 The structure diagram of the grid for flocculation tank provided by the present embodiment is shown in the figure; Figure 2 The structure diagram of the upper side of the grid for flocculation tank provided by the present embodiment is shown in the figure; Figure 3 The structure diagram of the lower side of the grid for flocculation tank provided by the present embodiment is shown in the figure; Figure 4 The structure diagram of the flocculation module provided by the present embodiment is shown in the figure; Figure 5 The structure diagram of the flocculation module provided by the present embodiment is shown in the figure; Figure 6 The structure diagram of the lower side of the fixed grid for flocculation tank provided by the present embodiment is shown in the figure; Figure 7 A structural schematic diagram of the lower side of the flocculation module provided in the embodiment is shown in the figure; Figure 8 A structural schematic diagram of the flocculation module provided in the embodiment is shown in the figure; Figure 9 A structural schematic diagram of the assembled flocculation tank provided in the embodiment is shown in the figure.

[0018] Icon: 100 - grid for flocculation tank; 110 - body; 120 - cyclone fin; 130 - first arc fin; 111 - mesh; 200 - flocculation module; 210 - movable assembly; 220 - fixed grid for flocculation tank; 221 - through hole; 222 - second arc fin; 211 - sliding rail; 212 - rotating connecting seat; 213 - transmission rod; 214 - movable block; 215 - driving rod; 300 - assembled flocculation tank; 310 - shaft. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0021] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0022] In the description of the present application, it should be noted that if the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the present application is used, only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0023] In addition, if the terms "first", "second" and the like appear, they are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0024] It should be noted that the features in the embodiments of the present application can be combined with each other without conflict.

[0025] The inventors have found through research that flocculation is one of the core links in the water treatment process, and its effect is directly related to the operation load of the subsequent sedimentation and filtration units and the final effluent water quality. At present, most of the water treatment systems at home and abroad use steel-concrete structure fixed flocculation tank. Although this technology has a long history and mature technology, its inherent design mode and structural characteristics have exposed many insurmountable drawbacks when facing complex working conditions in actual operation.

[0026] (1) Poor adaptability to water quantity changes, difficult to flexibly control. The hydraulic flow pattern (such as flow rate, GT value) of the fixed flocculation tank depends on the fixed corridor size, baffle spacing or blade angle for design, and once it is built, its structure cannot be changed. However, the actual treatment water quantity fluctuates with day and night, seasonal changes. At low load operation, the flow rate in the tank is too low, which may cause the floc to be unable to effectively collide and grow due to insufficient kinetic energy, and even to settle prematurely; at high load operation, the flow rate is too high, which may cause the formed floc to be broken by high-speed water flow, resulting in deterioration of flocculation effect and increase of effluent turbidity. The existing structure lacks effective real-time adjustment means, and the operation personnel can only make extensive adjustment by starting and stopping the water pump group, and cannot realize fine and optimization control of the flocculation process.

[0027] (2) Poor response to water quality fluctuations. Under low temperature conditions, the viscosity coefficient of water increases, the Brownian motion weakens, the flocculant hydrolysis is slow, and the floc is not easy to form and has small density and low strength. The mechanical energy input (water flow rate) of the fixed flocculation tank is fixed, and cannot be adaptively adjusted to the more gentle and longer flocculation conditions required for low temperature and low turbidity water, resulting in poor alum flower formation effect and poor settling performance, which is a long-term technical problem in the field of water treatment.

[0028] (3) High impact load for high turbidity water treatment. When the raw water quality suddenly deteriorates (such as high turbidity water caused by heavy rain), the concentration of colloidal particles in the water increases sharply, and higher flocculant dosage and different energy input gradient are required. The energy input sequence of the fixed flocculation tank is fixed, and it is difficult to quickly enhance the disturbance intensity of the front flocculation to promote colloidal destabilization, and it is also difficult to optimize the flocculation environment of the rear to prevent the overload floc from being broken, which may easily lead to increased chemical consumption and unstable effluent water quality.

[0029] (4) Relatively high operation energy consumption. In order to ensure the treatment effect under the most unfavorable conditions, the design of the fixed flocculation tank often leaves a large margin, and under most normal conditions, its head loss and energy consumption are not in the optimal range, causing waste of energy.

[0030] In summary, traditional fixed hydraulic flocculation tanks with reinforced concrete structures, due to their inherent "fixed" nature, are no longer able to meet the urgent needs of modern water plants for intelligent operation, efficient water quality assurance, and rapid construction. Therefore, the water treatment field urgently needs a new type of flocculation technology and device that can quickly, flexibly, and automatically adjust the flocculation energy input and flow field environment according to changes in influent flow rate and water quality.

[0031] To overcome the shortcomings of the existing technology, please refer to Figures 1-6 The present invention provides a grid 100, a flocculation module 200, and an assembled flocculation tank 300 for a flocculation tank.

[0032] The following is a detailed description of the flocculation tank grid 100, flocculation module 200, and assembled flocculation tank 300 provided in this embodiment.

[0033] First, please refer to Figures 1-3 This embodiment provides a grid 100 for a flocculation tank. The grid 100 for the flocculation tank includes a body 110, a plurality of swirl vanes 120 and a plurality of first arc-shaped vanes 130. The body 110 has multiple mesh holes 111 arranged in an array, and each mesh hole 111 corresponds to multiple swirl vanes 120 and multiple first arc-shaped vanes 130. Each swirl vane 120 corresponding to each mesh 111 is connected to the upper side of the body 110 and is spaced around the edge of the mesh 111. The swirl vane 120 bends and extends from the edge of the mesh 111 toward the area outside the mesh 111. Each first arc-shaped vane 130 corresponding to each mesh 111 is connected to the lower side of the body 110 and is spaced around the edge of the mesh 111.

[0034] Please refer to Figures 1-3 The working principle of this flocculation tank with a 100-mesh grid is as follows: The flocculation tank grid 100 comprises a body 110, a plurality of cyclone wings 120 and a plurality of first arc wings 130; the body 110 is provided with a plurality of mesh holes 111, the plurality of mesh holes 111 are arranged in an array, and each mesh hole 111 corresponds to a plurality of cyclone wings 120 and a plurality of first arc wings 130; wherein each mesh hole 111 corresponding cyclone wing 120 is connected to the upper side of the body 110, and is arranged at intervals around the edge of the mesh hole 111, and the cyclone wing 120 is curved and extended from the edge of the mesh hole 111 to the area outside the mesh hole 111; each mesh hole 111 corresponding first arc wing 130 is connected to the lower side of the body 110, and is arranged at intervals around the edge of the mesh hole 111. By adopting the flocculation tank grid 100, the water flow can form a flow around the wing after the wing, and a vortex area is formed behind the wing, thereby providing suitable hydraulic conditions for flocculation, increasing the effective collision times of particles, and thereby optimizing the flocculation effect. Moreover, on this basis, by adjusting the flow state, the number of small eddies in the water flow is increased; with the increase of the flocculation stages, the flow rate of the water flow through the mesh hole 111 gradually decreases, forming a good gradual reaction environment.

[0035] Further, please refer to Figures 1-3 In this embodiment, the mesh hole 111 is set as a hexagonal hole, and the mesh hole 111 corresponds to six cyclone wings 120 and six first arc wings 130 (as shown in Figure 2 ); wherein each edge of the upper end of the mesh hole 111 is provided with a cyclone wing 120, and each edge of the lower end of the mesh hole 111 is provided with a first arc wing 130. It should be noted that please refer to Figure 2 and Figure 3 When configuring the first arc wing 130, the six first arc wings 130 can be set (as shown in Figure 2 ), or the two first arc wings 130 can be set (as shown in Figure 3 ), or other number of first arc wings 130, that is, the specific number of first arc wings 130 can be adjusted according to actual needs.

[0036] And in other embodiments of the present application, the size of the mesh hole 111 can be adjusted according to the needs, that is, the shape of the mesh hole 111 can be further optimized, and shapes other than hexagonal can be used. Moreover, the forms of the cyclone wing 120 and the first arc wing 130 can be further optimized to better form micro eddies and optimize the flocculation effect. In addition to the wing material, the main body material can be stainless steel, plastic, high polymer material, etc.

[0037] When the first arc-shaped fin 130 is made, the first arc-shaped fin 130 is made of a memory alloy, and when the water temperature contacted by the first arc-shaped fin 130 decreases, the included angle between the first arc-shaped fin 130 and the horizontal plane decreases, thereby reducing the flow area of the mesh hole 111 and the size of the vortex.

[0038] Specifically, the first arc-shaped fin 130 is made of a nickel-titanium-based memory alloy, and the phase transition temperature of the nickel-titanium memory alloy is precisely controlled by adjusting the proportion of nickel and titanium or adding other elements, so that the first arc-shaped fin 130 is used when the water temperature contacted by the first arc-shaped fin 130 changes in its phase transition temperature range, for example, between 4°C and 30°C. When the water temperature changes from 4°C to 30°C, the first arc-shaped fin 130 can automatically and reversibly swing between 45 degrees and 15 degrees, thereby realizing the function of reducing the flow area of the mesh hole 111 and the size of the vortex by automatically changing the angle of the first arc-shaped fin 130 under low temperature conditions, thereby increasing the G value and automatically adapting to low temperature conditions.

[0039] Based on the above-mentioned grid 100 for flocculation tank, please refer to Figures 1-7 The embodiment also provides a flocculation module 200, which comprises a movable assembly 210, a grid 100 for flocculation tank, and the above-mentioned grid 100 for flocculation tank. The grid 100 for flocculation tank is located above a fixed grid 220 for flocculation tank and is movably connected with the fixed grid 220 for flocculation tank through the movable assembly 210. The fixed grid 220 for flocculation tank is provided with a through hole 221, and the first arc-shaped fin 130 of the grid for flocculation tank extends to the side of the fixed grid 220 for flocculation tank away from the grid 100 for flocculation tank through the through hole 221. It should be noted that the fixed grid 220 for flocculation tank in the embodiment adopts a setting mode of arranging two first arc-shaped fins 130 (as shown in Figure 3 ). The movable assembly 210 is used to drive the grid 100 for flocculation tank to move relative to the fixed grid 220 for flocculation tank under the action of an external force, so that the mesh hole 111 on the grid 100 for flocculation tank is opposite to the through hole 221 on the fixed grid 220 for flocculation tank, or the mesh hole 111 on the grid 100 for flocculation tank is arranged in a staggered manner with the through hole 221 on the fixed grid 220 for flocculation tank.

[0040] Through the above structural arrangement, the flocculation module 200 can drive the flocculation grid 100 to move relative to the fixed flocculation grid 220 by operating the movable assembly 210, so that the mesh holes 111 on the flocculation grid 100 are opposite to the through holes 221 on the fixed flocculation grid 220, or the mesh holes 111 on the flocculation grid 100 are staggered with the through holes 221 on the fixed flocculation grid 220; wherein the mesh holes 111 on the flocculation grid 100 and the through holes 221 on the fixed flocculation grid 220 correspond one by one, and the corresponding two holes form a flow channel for flow. Thus, the area of the mesh holes 111 through which the flocculation grid 100 and the fixed flocculation grid 220 are connected can be adjusted, so that the flow rate and G value of the flow channel formed by the mesh holes 111 and the through holes 221 are in the optimal range.

[0041] Moreover, when the flocculation grid 100 and the fixed flocculation grid 220 are arranged vertically, the flocculation grid 100 and the fixed flocculation grid 220 are both horizontally arranged and abut with each other, at this time, the plurality of mesh holes 111 and the through holes 221 can be sequentially increased from top to bottom, that is, the mesh holes 111 on the flocculation grid 100 are smaller than the mesh holes 111 on the fixed flocculation grid 220.

[0042] On the basis of the above structure, the second arc-shaped flaps 222 are arranged on the side of the fixed flocculation grid 220 away from the flocculation grid 100. When the mesh holes 111 on the flocculation grid 100 are opposite to the through holes 221 on the fixed flocculation grid 220, the first arc-shaped flaps 130 and the second arc-shaped flaps 222 are sequentially arranged along the outer edge of the through holes 221.

[0043] Moreover, in the present embodiment, the mesh holes 111 and the through holes 221 are both hexagonal holes, and the mesh holes 111 correspond to six cyclone flaps 120 and two first arc-shaped flaps 130 (as shown in Figure 3 The lower end of the through hole 221 is provided with four second arc-shaped flaps 222. When the mesh holes on the flocculation grid 100 are opposite to the through holes 221 on the fixed flocculation grid 220, each edge of the lower end of the through hole 221 corresponds to a first arc-shaped flap 130 or a second arc-shaped flap 222.

[0044] Thus, through such a setting mode, the lower end of the through hole 221 can be correspondingly provided with six arc-shaped flaps.

[0045] Please refer to Figures 1-7In the configuration of the active component 210, the active component 210 includes a sliding rail 211, a rotating connecting seat 212, a transmission rod 213, an active block 214 and a driving rod 215; The sliding rail 211 is connected with the fixed grid 220 for the flocculation tank, and the grid 100 for the flocculation tank is slidably connected with the sliding rail 211; the rotating connecting seat 212 is connected with the grid 100 for the flocculation tank; The transmission rod 213 is rotatably connected with the rotating connecting seat 212, and the transmission rod 213 is threadedly connected with the active block 214 connected with the grid 100 for the flocculation tank; The driving rod 215 is rotatably connected with the fixed grid 220 for the flocculation tank, and is drivingly connected with the transmission rod 213; The driving rod 215 is used to rotate under the action of an external force, and drives the transmission rod 213 to rotate, thereby driving the active block 214 and the grid 100 for the flocculation tank to slide relative to the sliding rail 211. The sliding direction of the grid 100 for the flocculation tank relative to the sliding rail 211 is a horizontal direction.

[0046] Thus, on the basis of the above structure, an operation handle connected with the driving rod 215 is configured, thereby conveniently driving the driving rod 215 to rotate. When the driving rod 215 rotates, the driving rod 215 drives the transmission rod 213 to rotate. The transmission rod 213 is rotatably connected with the fixed grid 220 for the flocculation tank, and the active block 214 connected with the grid 100 for the flocculation tank is threadedly connected with the transmission rod 213. Therefore, the rotation of the transmission rod 213 drives the active block 214 and the grid 100 for the flocculation tank to slide relative to the sliding rail 211, thereby enabling the relative movement between the grid 100 for the flocculation tank and the fixed grid 220 for the flocculation tank, so as to adjust the size of the mesh hole 111 through which the grid 100 for the flocculation tank and the fixed grid 220 for the flocculation tank are communicated, thereby adjusting the flow rate and G value of the part of the flow channel communicated through the mesh hole 111 and the through hole 221 to be in an optimal range.

[0047] In the embodiment, the driving rod 215 is vertically arranged, and the transmission rod 213 is horizontally arranged. In order to enable the driving rod 215 to be drivingly connected with the transmission rod 213, the driving rod 215 and the transmission rod 213 are drivingly connected through a bevel gear structure, i.e., the bevel gears meshing with each other are arranged on the driving rod 215 and the transmission rod 213, thereby enabling the transmission and the reversing. It should be noted that the transmission rod 213 can be a threaded rod, and the active block 214 is provided with a threaded hole threadedly connected with the transmission rod 213. Alternatively, a threaded section can be arranged on the transmission rod 213 to threadedly connect with the active block 214.

[0048] Based on the flocculation module 200, please refer to Figures 1-9The embodiment also provides a kind of assembled flocculation tank 300, and the assembled flocculation tank 300 includes multiple vertical shafts 310, multiple vertical shafts 310 are arranged or arranged side by side, and multiple vertical shafts 310 are communicated along the flow direction; Multiple flocculation modules 200 described above are arranged in each vertical shaft 310, multiple flocculation modules 200 are vertically spaced, and multiple flocculation modules 200 are horizontally arranged.

[0049] And two adjacent vertical shafts 310 along the flow direction are communicated through overflow holes opened at the critical point of two vertical shafts 310, and multiple overflow holes gradually increase along the flow direction.

[0050] Please refer to Figures 1-9 , combined with the grid 100 for flocculation tank and flocculation module 200 described above, the specific structure of the assembled flocculation tank 300 is as follows: The assembled flocculation tank 300 is composed of several vertical shafts 310, and multiple flocculation modules 200 are arranged in each vertical shaft 310, and the flocculation module 200 includes the grid 100 for flocculation tank. When configuring each layer of the grid 100 for flocculation tank, a plurality of regular hexagonal mesh holes 111 can be uniformly arranged, and the number and size of the vertical shaft 310, the grid and the mesh hole 111 can be set according to the modulus according to different processing scale; and according to the principle of gradually reducing flow rate in the vertical shaft 310, the flocculation tank is divided into several stages, each stage is composed of several vertical shafts 310; overflow holes are arranged between the vertical shafts 310, and the size of the overflow holes is also set according to the principle of gradually reducing flow rate, and the size of the overflow holes gradually increases.

[0051] Multiple flocculation modules 200 are arranged in the vertical shaft 310, which provides suitable hydraulic conditions for flocculation, increases the effective collision times of particles, and increases the number of small eddies in the water flow by adjusting the flow state; with the increase of flocculation stages, the flow rate of water flow through the mesh hole 111 gradually decreases, forming a good gradually decreasing reaction environment. In order to ensure the promotion effect of particle flocculation, the vortex formed should be similar in order of magnitude to the particle size.

[0052] The mesh hole 111 adopts a regular hexagonal structure, the size of the mesh hole 111 gradually increases with the increase of the flocculation stages, the mesh hole 111 is provided with a cyclone wing 120 and a first arc-shaped wing 130 around the periphery, the water flow forms a flow around the wing and forms a vortex area behind the wing after passing through the wing; the upper and lower mesh holes 111 and the through hole 221 of the two grids 100 of the same flocculation module 200 can form a flow channel, wherein the upper mesh hole 111 is provided with six cyclone wings 120 above the grid plane and two first arc-shaped wings 130 below the grid plane around the periphery; and the through hole 221 of the lower layer is provided with four second arc-shaped wings 222 below the grid plane around the periphery, and the first arc-shaped wing 130 and the second arc-shaped wing 222 form a complete flow guide structure; And the upper layer grid can move horizontally, at this time, the upper layer mesh 111 and the lower layer through hole 221 together form a smaller size hexagon, that is, the size of the flow channel is adjusted.

[0053] In adjusting the size of the flow channel described above, the drive rod 215 can be rotated by operating the handle to drive the upper layer flocculation tank grid 100 to move relative to the lower layer flocculation tank grid 100, that is, to drive the upper layer grid to move horizontally; it should be noted that a scale can be provided on the handle, so that the horizontal movement distance of each upper layer flocculation tank grid 100 in the shaft 310 can be set by manually rotating the handle.

[0054] The first arc-shaped wing 130 and the second arc-shaped wing 222 can be made of nickel-titanium-based memory alloy, and the phase transition temperature of the nickel-titanium memory alloy can be precisely controlled by adjusting the proportion of nickel and titanium or adding other elements, so that the first arc-shaped wing 130 and the second arc-shaped wing 222 can automatically and reversibly swing between 45 degrees and 15 degrees when the water temperature changes between 4℃ and 30℃, thereby realizing the function of reducing the flow area of the mesh 111 and the vortex size by automatically changing the angle of the first arc-shaped wing 130 and the second arc-shaped wing 222 under low temperature conditions, thereby increasing the G value and automatically adapting to low temperature conditions.

[0055] Therefore, the flocculation tank can dynamically adjust the structure size according to the water quantity change. Under low water quantity conditions, the low load mode is started, the best mesh 111 flow rate, through hole 221 and mesh 111 size are obtained through AI calculation according to the reading of the water inflow meter and big data analysis, the upper layer flocculation tank grid 100 is driven to move horizontally by rotating the handle, the size of the flow channel formed by the upper and lower relative mesh 111 and through hole 221 is reduced, and the flow rate and G value through the flow channel are ensured to be in the best range; by adjusting the opening and closing state of the channel between the shafts 310, the use or span of part of the shafts 310 is realized, and under low temperature conditions, the number of shafts 310 in use is increased, thereby increasing the flocculation reaction time and GT value, and optimizing the flocculation conditions. The above adjustment can be set in steps to avoid excessive frequent adjustment.

[0056] In summary, please refer to Figures 1-9 The flocculation tank can automatically or manually adjust the size of the flow channel formed by the mesh 111 in the water flow channel inside the flocculation tank according to the real-time change of the water inflow, so as to dynamically change the water flow speed and turbulence intensity, so that the hydraulic conditions are always maintained in the optimal flocculation interval (GT value), avoiding low load precipitation and high load shear problems. And solve the water quality fluctuation (especially low temperature and low turbidity, high turbidity) problem: in the low temperature and low turbidity period, adjust the size of the mesh 111 to create a more gentle and longer flocculation path; in the high turbidity period, adjust the size of the mesh 111 to enhance the disturbance intensity in the front section, optimize the energy input sequence, thereby significantly improving the treatment effect of complex raw water quality.

[0057] Realize intelligent and energy saving: through the above adaptive control mechanism, an intelligent flocculation system that can respond to working condition changes and optimize itself is built, which maximizes the reduction of drug consumption and energy consumption under the premise of ensuring excellent water quality.

[0058] From the above, the multi-layer flocculation module 200 arranged in the shaft 310 is supported by a unitized assembly structure, which can be combined with the intelligent adaptive control system to realize rapid deployment, flexible expansion and precise optimization control of water quantity and quality of the flocculation process.

[0059] Compared with the prior art, the assembly type flocculation tank 300 provided by the embodiment has the following effects by using the above-mentioned grid 100 and flocculation module 200 for flocculation tank: (1) The running efficiency and adaptability are significantly enhanced. By adjusting the size of the mesh 111, the water flow velocity and G value are precisely controlled, so that the flocculation process can maintain the best kinetic conditions under various treatment water quantities, effectively solving the core pain point of poor adaptability of traditional tank bodies to water quantity changes, and the water quality is stable and reliable. By adjusting the opening angle of the fin, a more dense and more tortuous micro-vortex flow field is formed, the hydraulic retention time is prolonged, the effective collision times of flocculation bodies are increased, and at the same time, excessive shear is avoided, successfully solving the problem of alum flower formation difficulty and poor effect under low temperature and low turbidity conditions. By adjusting the opening angle of the fin, a high-intensity disturbance zone is created in the front section to quickly disperse the reagent and promote colloid destabilization; in the rear section, the disturbance is appropriately weakened to protect the growth of large particle alum flowers. This intelligent energy gradient distribution significantly enhances the system's ability to resist impact load. The combination of the mesh 111 and the fin creates a more efficient and controllable micro-vortex flocculation environment, the alum flower generation speed is fast, the particle is dense, the settling performance is good, and the effluent turbidity can be stably controlled at a low level.

[0060] (2) The intelligent and energy saving effect is outstanding. The optimized flocculation conditions reduce the invalid consumption of flocculants, which can reduce the drug consumption by 10%-25%. Compared with traditional fixed flocculation tanks, water head loss and overall energy consumption can be effectively reduced. It can be easily connected to the water plant wisdom platform to realize unattended and fully automatic operation, greatly improving the modern management level of water plants.

[0061] In summary, the assembled flocculation tank 300 provided by the embodiment is integrated with rapid construction, flexible adjustment and intelligent self-adaptation, completely changes the fixed mode of the traditional flocculation tank, and provides a new generation of flocculation technical solution for the water treatment industry, which is efficient, economical, reliable and future-oriented.

[0062] The above merely provides a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which shall be covered within the protection scope of the present application.

Claims

1. A grid for flocculation tank, characterized in that: the grid for flocculation tank comprises a body, a plurality of cyclone wings and a plurality of first arc wings; the body is provided with a plurality of mesh holes, the plurality of mesh holes are arranged in an array, and each mesh hole corresponds to a plurality of cyclone wings and a plurality of first arc wings; wherein, the cyclone wings corresponding to each mesh hole are connected to the upper side of the body and are arranged at intervals around the edge of the mesh hole, and the cyclone wings extend from the edge of the mesh hole to the area outside the mesh hole; the first arc wings corresponding to each mesh hole are connected to the lower side of the body and are arranged at intervals around the edge of the mesh hole. 2.The grid for flocculation tank according to claim 1, characterized in that: the mesh hole is a hexagonal hole, and the mesh hole corresponds to six cyclone wings and six first arc wings; wherein, one cyclone wing is arranged on each edge of the upper end of the mesh hole, and one first arc wing is arranged on each edge of the lower end of the mesh hole. 3.The grid for flocculation tank according to claim 1 or 2, characterized in that: the first arc wing is made of a memory alloy, and when the water temperature contacted by the first arc wing decreases, the angle between the first arc wing and the horizontal plane becomes smaller. 4.The grid for flocculation tank according to claim 3, characterized in that: the first arc wing is made of a nickel-titanium-based memory alloy, and the first arc wing is used to swing between 45 degrees and 15 degrees when the water temperature contacted by the first arc wing changes in the phase transition temperature interval. 5.A flocculation module, characterized in that: the flocculation module comprises a fixed grid for flocculation tank, a movable assembly and the grid for flocculation tank according to any one of claims 1-4; the grid for flocculation tank is located above the fixed grid for flocculation tank and is movably connected to the fixed grid for flocculation tank through the movable assembly; the fixed grid for flocculation tank is provided with a through hole, and the first arc wings of the grid for flocculation tank extend to the side of the fixed grid for flocculation tank away from the grid for flocculation tank through the through hole; wherein, the movable assembly is used to drive the grid for flocculation tank to move relative to the fixed grid for flocculation tank under the action of an external force, so that the mesh holes on the grid for flocculation tank are opposite to the through holes on the fixed grid for flocculation tank, or the mesh holes on the grid for flocculation tank are arranged at intervals with the through holes on the fixed grid for flocculation tank. 6.The flocculation module according to claim 5, characterized in that: the side of the fixed grid for flocculation tank away from the grid for flocculation tank is provided with a second arc wing; when the mesh holes on the grid for flocculation tank are opposite to the through holes on the fixed grid for flocculation tank, the first arc wings and the second arc wings are arranged along the outer edge of the through hole in sequence. 7.The flocculation module according to claim 6, characterized in that: The mesh hole and the through hole are both hexagonal holes, and the mesh hole corresponds to six cyclone vanes and two first arc vanes, and each edge of the upper end of the mesh hole is provided with a cyclone vane; the lower end of the through hole is provided with four second arc vanes; When the mesh hole on the grid of the flocculation tank is opposite to the through hole on the fixed grid of the flocculation tank, each edge of the lower end of the through hole corresponds to a first arc vane or a second arc vane.

8. The flocculation module according to claim 5, characterized in that: The movable assembly comprises a sliding rail, a rotating connecting seat, a transmission rod, a movable block and a driving rod; The sliding rail is connected with the fixed grid of the flocculation tank, and the grid of the flocculation tank is slidably connected with the sliding rail; the rotating connecting seat is connected with the grid of the flocculation tank; The transmission rod is rotatably connected with the rotating connecting seat, and the transmission rod is threadedly connected with the movable block connected with the grid of the flocculation tank; The driving rod is rotatably connected with the fixed grid of the flocculation tank and is in transmission connection with the transmission rod; The driving rod is used for rotating under the action of an external force, and drives the transmission rod to rotate, so as to drive the movable block and the grid of the flocculation tank to slide relative to the sliding rail, and the grid of the flocculation tank slides relative to the sliding rail in a horizontal direction.

9. A spliced flocculation tank, characterized in that: The spliced flocculation tank comprises a plurality of vertical shafts, the vertical shafts are arranged in an array or side by side, and the vertical shafts are communicated along a flow guide direction; A plurality of flocculation modules according to any one of claims 5-7 are arranged in each vertical shaft, the flocculation modules are vertically spaced, and the flocculation modules are horizontally arranged.

10. The spliced flocculation tank according to claim 9, characterized in that: Two adjacent vertical shafts along the flow guide direction are communicated through flow holes opened at the critical positions of the two vertical shafts, and the flow holes are sequentially increased along the flow guide direction.

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