Flocculation sedimentation tank and filter tank superposed structure

Abstract

The utility model provides a flocculation sedimentation tank and filter tank superposed structure, which relates to the technical field of water supply and drainage related equipment and comprises a sedimentation tank structure and a filter tank structure which are mutually superposed and connected, the sedimentation tank structure comprises a sedimentation tank body as well as a water inlet mechanism, a flocculation mechanism, a sedimentation part and a water collection mechanism which are connected with the sedimentation tank body; the flocculation mechanism is connected with the water inlet mechanism, the flocculation mechanism comprises a flow folded plate assembly, and the flow folded plate assembly is used for blocking sewage flowing through the flocculation mechanism, so that impurities in the sewage are combined into floccules; the water collecting mechanism is connected with the flocculation mechanism through the precipitation part, and the water collecting mechanism is used for collecting sewage after precipitation of the flocculating constituent and conveying the sewage to the filter structure. The technical problems that in the prior art, a water supply treatment structure is large in occupied area, and the sedimentation effect on raw water with many pollutants is poor are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of water supply and drainage related equipment, in particular to a flocculation sedimentation tank superposed filter tank structure. Background Technique

[0002] The coagulation sedimentation tank is a kind of sedimentation tank in water supply and drainage. The coagulation process is the most basic and extremely important process in the treatment of industrial water and domestic water. By adding some chemicals (usually called coagulants and coagulant aids) to the water, the particles that are difficult to precipitate in the water can polymerize with each other to form colloids, and then combine with the impurities in the water body to form larger flocs. And because the flocs have a strong adsorption force, they can not only adsorb suspended solids, but also adsorb some bacteria and dissolved substances; furthermore, through adsorption, the flocs achieve the use effect of increasing in volume and sinking.

[0003] The application of the coagulation sedimentation process in water treatment has a history of hundreds of years. Compared with other physicochemical methods, it has the advantages of good effluent quality, stable and reliable process operation, economy and practicality, and simple operation.

[0004] However, at present, the coagulation sedimentation tank and the filter tank of the water treatment structure are constructed separately, so it will cause problems such as a large floor area and relatively complex process treatment pipelines; and for raw water with more pollutants, the existing coagulation sedimentation tank has poor coagulation sedimentation effect and low removal rate. Content of the Utility Model

[0005] The purpose of the utility model is to provide a flocculation sedimentation tank superposed filter tank structure to alleviate the technical problems of large floor area of the water treatment structure and poor sedimentation effect for raw water with more pollutants existing in the prior art.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme:

[0007] In the first aspect, the utility model provides a flocculation sedimentation tank superposed filter tank structure, including a sedimentation tank structure and a filter tank structure which are superposed and connected to each other;

[0008] The sedimentation tank structure includes a sedimentation tank body and an inlet mechanism, a flocculation mechanism, a sedimentation part and a water collection mechanism connected to the sedimentation tank body;

[0009] The flocculation mechanism is connected to the inlet mechanism, and the flocculation mechanism includes a flow baffle plate assembly, and the flow baffle plate assembly is used to block the raw water flowing through the flocculation mechanism so that the impurities in the raw water combine into flocs;

[0010] The water collection mechanism is connected to the flocculation mechanism through the sedimentation part, and the water collection mechanism is used to collect the raw water after the flocs settle and transport the raw water to the filter tank structure.

[0011] Further, the flow baffle assembly includes a counter-current flow baffle, a co-current flow baffle, and a vertical flow baffle connected to the sedimentation tank body, and the counter-current flow baffle, the co-current flow baffle, and the vertical flow baffle are sequentially distributed along the water flow direction to disorder the water flow pattern and promote the combination of impurities in the raw water into flocs.

[0012] Further, the flocculation mechanism further includes a motor;

[0013] The counter-current flow baffle and the co-current flow baffle are respectively connected to the corresponding motors;

[0014] The motor is used to drive the corresponding flow baffle to vibrate.

[0015] Further, the flocculation mechanism further includes an effluent perforated flower wall connected to the sedimentation tank body. The effluent perforated flower wall is arranged on the side of the vertical flow baffle away from the co-current flow baffle, and the effluent perforated flower wall is provided with honeycomb-shaped through holes.

[0016] Further, the water inlet mechanism includes a U-shaped water tank, a sedimentation tank inlet pipe, and a grid. The U-shaped water tank is connected to the sedimentation tank body, one end of the U-shaped water tank is connected to the sedimentation tank inlet pipe, the other end is provided with a water outlet, and the water outlet is provided with the grid.

[0017] Further, the water collection mechanism includes finger-shaped grooves, a drain pipe, and a water outlet pipe. The water collection mechanism is communicated with the sedimentation part;

[0018] The finger-shaped grooves are connected to the sedimentation tank body, and the finger-shaped grooves are connected to the filter tank structure through the drain pipe. The finger-shaped grooves are used to discharge the raw water sedimented in the sedimentation part into the filter tank structure through the drain pipe;

[0019] The water outlet pipe is connected to the sedimentation tank body, and the water outlet pipe is used to discharge the wastewater containing flocs precipitated at the bottom of the sedimentation tank body.

[0020] Further, the sedimentation tank structure further includes a sludge suction mechanism;

[0021] The sludge suction mechanism includes a guide rail connected to the sedimentation tank body, and a truss-type siphon sludge machine is slidably connected to the guide rail.

[0022] Further, the sedimentation tank body is provided with sludge discharge pipes at intervals at the positions of the flocculation mechanism and the sedimentation part.

[0023] Further, the filter tank structure includes an inlet pipe and a filter tank body. The inlet pipe is connected to the filter tank body, and the inlet pipe is connected to the water outlet end of the sedimentation tank structure;

[0024] The filter tank body is successively provided with a supporting layer, a fine gravel layer and a quartz sand layer from bottom to top, and the supporting layer, the fine gravel layer and the quartz sand layer are used for filtering raw water.

[0025] Further, an anti-flushing pipeline is arranged in the filter tank body for anti-flushing the filter tank body.

[0026] The utility model can achieve the following beneficial effects:

[0027] In the first aspect, the utility model provides a flocculation sedimentation tank superimposed filter tank structure, which comprises a sedimentation tank structure and a filter tank structure that are superimposed and connected to each other; the sedimentation tank structure comprises a sedimentation tank body and a water inlet mechanism, a flocculation mechanism, a sedimentation part and a water collection mechanism connected to the sedimentation tank body; the flocculation mechanism is connected to the water inlet mechanism, and the flocculation mechanism comprises a flow baffle plate assembly, and the flow baffle plate assembly is used for blocking the raw water flowing through the flocculation mechanism so that impurities in the raw water are combined into flocs; the water collection mechanism is connected to the flocculation mechanism through the sedimentation part, and the water collection mechanism is used for collecting the raw water after the flocs are sedimented and conveying the raw water to the filter tank structure.

[0028] In the utility model, the sedimentation tank structure is arranged directly above the filter tank structure, and the water inlet mechanism, the flocculation mechanism, the sedimentation part and the water collection mechanism are successively arranged in the sedimentation tank body along the water flow direction; during use, the raw water is discharged into the sedimentation tank structure from the water inlet mechanism, and then the flocculation mechanism is used for connecting the impurities in the raw water to each other into flocs, and the flocs with larger volume are sedimented after entering the sedimentation part. At this time, the water in the raw water is located above, while the flocs are located at the bottom, and the water located above is collected by the water collection mechanism and enters the filter tank structure for further filtration treatment.

[0029] Compared with the prior art, the flocculation sedimentation tank superimposed filter tank structure provided by the utility model realizes the reduction of the floor area of the flocculation sedimentation tank superimposed filter tank structure by arranging the sedimentation tank structure directly above the filter tank structure; and through the water inlet mechanism, the flocculation mechanism, the sedimentation part and the water collection mechanism arranged in the sedimentation tank body, the impurities in the raw water are connected into flocs and the sedimentation separation is completed in this process, so as to achieve the effect of preliminarily filtering the raw water.

[0030] In summary, the utility model at least alleviates the technical problems existing in the prior art, such as the large floor area of the water treatment structure and the poor sedimentation effect on the raw water with more pollutants. Description of the Drawings

[0031] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0032] Figure 1 It is a top view structural schematic diagram of the flocculation sedimentation tank superimposed filter tank structure provided by the embodiment of the present invention;

[0033] Figure 2 It is a top view internal structure schematic diagram of the flocculation sedimentation tank superimposed filter tank structure provided by the embodiment of the present invention;

[0034] Figure 3 It is a front view internal structure schematic diagram of the flocculation sedimentation tank superimposed filter tank structure provided by the embodiment of the present invention;

[0035] Figure 4 It is a front view cross-section structure schematic diagram of the flocculation sedimentation tank superimposed filter tank structure provided by the embodiment of the present invention;

[0036] Figure 5 It is a partial structure enlarged schematic diagram of the flocculation sedimentation tank superimposed filter tank structure provided by the embodiment of the present invention;

[0037] Figure 6 It is a front view structural schematic diagram of the filter tank structure of the flocculation sedimentation tank superimposed filter tank structure provided by the embodiment of the present invention.

[0038] Icon: 1 - sedimentation tank structure; 11 - water inlet mechanism; 111 - U-shaped water trough; 1111 - cover plate; 1112 - water outlet; 112 - sedimentation tank inlet pipe; 113 - grid; 12 - flocculation mechanism; 121 - countercurrent folding plate; 122 - co-current folding plate; 123 - vertical flow folding plate; 1231 - brush; 124 - effluent perforated flower wall; 125 - motor; 13 - sedimentation part; 14 - water collection mechanism; 141 - finger-shaped groove; 142 - drain pipe; 143 - outlet pipe; 15 - sludge suction mechanism; 151 - guide rail; 152 - truss type siphon sludge machine; 2 - filter tank structure; 21 - inlet pipe; 22 - filter tank body; 221 - backwashing pipeline; 222 - supporting layer; 223 - fine gravel layer; 224 - quartz sand layer; 225 - effluent channel. Specific Embodiments

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. The components of the embodiments of the present utility model described and illustrated herein can be arranged and designed in various different configurations.

[0040] Therefore, the detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0041] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not require further definition and explanation in subsequent drawings.

[0042] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship in which the utility model product is customarily placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and should not be construed as indicating or implying relative importance.

[0043] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0044] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0045] The following will describe in detail some embodiments of the present utility model in conjunction with the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0046] Embodiment 1

[0047] This embodiment provides a flocculation sedimentation tank superimposed filter structure. Referring to Figure 1 or Figure 2 , the flocculation sedimentation tank superimposed filter structure includes a sedimentation tank structure 1 and a filter tank structure 2 that are superimposed and connected to each other; the sedimentation tank structure 1 includes a sedimentation tank body and a water inlet mechanism 11, a flocculation mechanism 12, a sedimentation part 13, and a water collection mechanism 14 connected to the sedimentation tank body; the flocculation mechanism 12 is connected to the water inlet mechanism 11, and the flocculation mechanism 12 includes a flow baffle assembly for blocking the raw water flowing through the flocculation mechanism 12 so that impurities in the raw water combine into flocs; the water collection mechanism 14 is connected to the flocculation mechanism 12 through the sedimentation part 13, and the water collection mechanism 14 is used to collect the raw water after the flocs settle and convey the raw water to the filter tank structure 2.

[0048] The embodiment of the present utility model at least alleviates the technical problems in the prior art that the floor area of the water treatment structure is relatively large and the sedimentation effect on raw water with more pollutants is poor.

[0049] In the embodiment of the present utility model, the sedimentation tank structure 1 is arranged directly above the filter tank structure 2, and the water inlet mechanism 11, the flocculation mechanism 12, the sedimentation part 13, and the water collection mechanism 14 are sequentially arranged in the sedimentation tank body along the water flow direction; during use, the raw water is discharged from the water inlet mechanism 11 into the sedimentation tank structure, and then the flocculation mechanism 12 is used to connect the impurities in the raw water into flocs. The larger-volume flocs settle after entering the sedimentation part 13. At this time, the water in the raw water is located above, and the flocs are located at the bottom. The water located above is collected by the water collection mechanism 14 and enters the filter tank structure 2 for further filtration treatment.

[0050] Compared with the prior art, the flocculation sedimentation tank superimposed filter structure provided by the embodiment of the present utility model realizes the reduction of the floor area of the flocculation sedimentation tank superimposed filter structure by arranging the sedimentation tank structure 1 directly above the filter tank structure 2; and through the water inlet mechanism 11, the flocculation mechanism 12, the sedimentation part 13, and the water collection mechanism 14 arranged in the sedimentation tank body, the impurities in the raw water are connected into flocs and the sedimentation separation is completed during this process, so as to achieve the effect of initially filtering the raw water.

[0051] In an optional embodiment of this embodiment, referring to Figure 3, the flow baffle assembly includes a countercurrent flow baffle 121, a co-current flow baffle 122, and a vertical flow baffle 123 connected to the sedimentation tank body, and the countercurrent flow baffle 121, the co-current flow baffle 122, and the vertical flow baffle 123 are distributed in sequence along the water flow direction to disrupt the water flow pattern and promote the combination of impurities in the raw water into flocs.

[0052] Specifically: The flow baffle assembly sequentially includes a countercurrent flow baffle 121, a co-current flow baffle 122, and a vertical flow baffle 123 along the water flow direction, and each type of flow baffle is a plurality of monomers arranged at intervals to block sewage and combine the impurities in the sewage into flocs; among them, both the countercurrent flow baffle 121 and the co-current flow baffle 122 are set as telescopic plates, and by adjusting the distance between the flow baffles, the water flow velocity is affected, that is, by enhancing the degree of disorder of the incoming water flow, the function of strengthening the flocculation effect of the sewage is achieved.

[0053] It should be noted that a brush 1231 is provided on the vertical flow baffle 123, and the brush 1231 helps the impurities to combine into flocs.

[0054] Furthermore, referring to Figure 5 , the flocculation mechanism 12 further includes a motor 125; the countercurrent flow baffle 121 and the co-current flow baffle 122 are respectively connected to the corresponding motor 125; the motor 125 is used to drive the corresponding flow baffle to elongate or shorten, so as to change the distance between adjacent flow baffles, and further change the water flow velocity and the turbulent flow pattern.

[0055] Specifically: The countercurrent flow baffle 121 and the co-current flow baffle 122 are respectively connected to the corresponding motor 125, and the motor 125 can be connected to the sedimentation tank body; during use, the motor 125 is installed on the top of the countercurrent flow baffle 121 or the co-current flow baffle 122, so that the motor 125 drives the telescopic rod to elongate or shorten the corresponding countercurrent flow baffle 121 and co-current flow baffle 122, thereby changing the distance between adjacent flow baffles, and changing the water flow velocity and the turbulent flow pattern.

[0056] In an alternative embodiment of this embodiment, referring to Figure 3 or Figure 5 , the flocculation mechanism 12 further includes an effluent perforated flower wall 124 connected to the sedimentation tank body, the effluent perforated flower wall 124 is arranged on the side of the vertical flow baffle 123 away from the co-current flow baffle 122, and the effluent perforated flower wall 124 is provided with honeycomb-shaped through holes.

[0057] Specifically: The effluent perforated flower wall 124 is connected to the inner bottom of the sedimentation tank body, and the effluent perforated flower wall 124 is provided with honeycomb-shaped through holes; during use, in the sewage passing through multiple flow baffles, the flocs with larger volumes formed will pass through the honeycomb-shaped through holes and settle in the area of the sedimentation part 13.

[0058] In an alternative embodiment of the present embodiment, referring to Figure 1 , Figure 3 or Figure 5 , the water inlet mechanism 11 includes a U-shaped water tank 111, a sedimentation tank inlet pipe 112, and a grid 113. The U-shaped water tank 111 is connected to the sedimentation tank body, one end of the U-shaped water tank 111 is connected to the sedimentation tank inlet pipe 112, and the other end is provided with a water outlet 1112, and a grid 113 is provided at the water outlet 1112.

[0059] Specifically: One end of the U-shaped water tank 111 is connected to the sedimentation tank inlet pipe 112, and the other end is provided with a water outlet 1112 communicating with the flocculation mechanism 12. A grid 113 is provided at the secondary water outlet 1112. During use, sewage enters the U-shaped water tank 111 from the sedimentation tank inlet pipe 112, and then enters the flocculation mechanism 12 through the water outlet 1112. The top of the U-shaped water tank 111 is provided with a cover plate 1111, and the cover plate 1111 is preferably a detachable structure to facilitate cleaning of the U-shaped water tank 111.

[0060] In an alternative embodiment of the present embodiment, referring to Figure 3 or Figure 4 , the water collection mechanism 14 includes finger-shaped grooves 141, a drain pipe 142, and a water outlet pipe 143. The water collection mechanism 14 communicates with the sedimentation part 13; the finger-shaped grooves 141 are connected to the sedimentation tank body, and the finger-shaped grooves 141 are connected to the filter tank structure 2 through the drain pipe 142. The finger-shaped grooves 141 are used to discharge the raw water flowing through the sedimentation part 13 into the filter tank structure 2 through the drain pipe 142; the water outlet pipe 143 is connected to the sedimentation tank body, and the water outlet pipe 143 is used to discharge the wastewater containing flocs precipitated at the bottom of the sedimentation tank body.

[0061] Specifically: The finger-shaped grooves 141 include a groove body and struts arranged at intervals for supporting the groove body. After being sedimented by the sedimentation part 13, the water above the raw water flows through the finger-shaped grooves 141 and then enters the filter tank structure 2 through the drain pipe 142, while the raw water below the groove body is discharged through the water outlet pipe 143.

[0062] In an alternative embodiment of the present embodiment, referring to Figure 3 or Figure 4 , the sedimentation tank structure 1 further includes a sludge suction mechanism 15; the sludge suction mechanism 15 includes a guide rail 151 connected to the sedimentation tank body, and a truss-type siphon sludge machine 152 is slidably connected to the guide rail 151.

[0063] Specifically: A truss-type siphon sludge machine 152 is slidably connected to the guide rail 151, and preferably, the truss-type siphon sludge machine 152 can be arranged in the sedimentation part 13 to absorb the sediment in the sedimentation part 13.

[0064] In an alternative embodiment of the present embodiment, referring to Figure 1 or Figure 2, sludge discharge pipes are provided at intervals between the flocculation mechanism 12 and the sedimentation section 13 of the sedimentation tank body.

[0065] Specifically: sludge discharge pipes are provided on both sides of the sedimentation tank body. The sludge at the bottom of the sedimentation section 13 is sucked out by the truss type siphon sludge machine 152 and discharged into the sludge discharge pipes, and the sludge discharge pipes discharge the sludge from one end of the sedimentation tank body.

[0066] In an optional implementation manner of this embodiment, refer to Figure 6 , the filter tank structure 2 includes a water inlet pipe 21 and a filter tank body 22. The water inlet pipe 21 is connected to the filter tank body 22, and the water inlet pipe 21 is connected to the water outlet end of the sedimentation tank structure 1; the filter tank body 22 is successively provided with a supporting layer 222, a fine gravel layer 223 and a quartz sand layer 224 from bottom to top, and the supporting layer 222, the fine gravel layer 223 and the quartz sand layer 224 are used for filtering raw water.

[0067] Specifically: the filter tank body 22 is preferably a V-type filter tank with a cuboid concrete box structure and is symmetrically distributed; the water inlet pipe 21 is respectively connected to the box structures on both sides and first enters the sewage to the bottom of the V-type filter tank; the filter layer of the V-type filter tank is successively the supporting layer 222, the fine gravel layer 223 and the quartz sand layer 224 from bottom to top. It should be noted that the filter layer of the V-type filter tank is generally between 0.95 and 1.5 m, and the filtration rate of the filter layer is generally about 12.5 to 15.0 m / h; among them, the filter material particle size of the quartz sand layer 224 of the filter layer is generally 0.95 to 1.35 mm, and is allowed to be enlarged to 0.7 to 2.0 mm, and the non-uniformity coefficient is between 1.2 and 1.6 or 1.8.

[0068] And a water outlet channel 225 is provided at the top of the side wall of the filter tank body 22. During use, the raw water flows upward from the bottom, and after successively passing through the supporting layer 222, the fine gravel layer 223 and the quartz sand layer 224, it finally flows to the water outlet channel 225 and is discharged.

[0069] Furthermore, refer to Figure 6 , an anti-flushing pipeline 221 is provided in the filter tank body 22 for anti-flushing the filter tank body 22.

[0070] Specifically: a layer of anti-flushing pipeline 221 is provided at the bottom of the filter tank body 22. The anti-flushing process generally adopts air flushing, air-water simultaneous backwashing and water flushing; among them, the air flushing intensity is 13 to 16 L / s·m, the clean water flushing intensity is 3.6 to 4.1 L / s·m, the surface sweeping uses raw water, and is generally 1.4 to 2.2 L / s·m.

[0071] Finally, it should be noted that the embodiments in this specification are all described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same and similar parts among the embodiments, reference can be made to each other. The above embodiments in this specification are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A flocculation sedimentation tank superimposed filter tank structure, characterized in that: It comprises a sedimentation tank structure (1) and a filter tank structure (2) which are superimposed and connected to each other; The sedimentation tank structure (1) comprises a sedimentation tank body, and a water inlet mechanism (11), a flocculation mechanism (12), a sedimentation part (13) and a water collection mechanism (14) connected to the sedimentation tank body; The flocculation mechanism (12) is connected to the water inlet mechanism (11), and the flocculation mechanism (12) comprises a flow baffle assembly, wherein the flow baffle assembly is used to block the raw water flowing through the flocculation mechanism (12) so that impurities in the raw water are combined into floccules; The water collection mechanism (14) is connected to the flocculation mechanism (12) via the sedimentation portion (13), and the water collection mechanism (14) is used to collect raw water after the floccules are precipitated, and to transport the raw water to the filter tank structure (2).

2. The flocculation sedimentation tank superimposed filter tank structure according to claim 1, characterized in that: The flow baffle assembly comprises a different-direction flow baffle (121), a same-direction flow baffle (122) and a vertical flow baffle (123) connected to the sedimentation tank body, and the different-direction flow baffle (121), the same-direction flow baffle (122) and the vertical flow baffle (123) are sequentially distributed along the water flow direction to disturb the flow state of the water body and promote the impurities in the raw water to combine into flocs.

3. The flocculation sedimentation tank superimposed filter tank structure according to claim 2, characterized in that: The flocculation mechanism (12) further includes a motor (125); The different-direction flow baffles (121) and the same-direction flow baffles (122) are respectively connected to corresponding motors (125); The motor (125) is used to drive the corresponding flow deflectors to lengthen or shorten, so as to change the spacing between adjacent flow deflectors, thereby changing the water flow velocity and turbulent flow state.

4. The flocculation sedimentation tank superimposed filter tank structure according to claim 2, characterized in that: The flocculation mechanism (12) further comprises a water outlet perforated flower wall (124) connected to the sedimentation tank body, the water outlet perforated flower wall (124) being arranged on a side of the vertical flow deflector (123) away from the co-directional flow deflector (122), and the water outlet perforated flower wall (124) is provided with honeycomb-shaped through holes.

5. The flocculation sedimentation tank superimposed filter tank structure according to claim 1, characterized in that: The water inlet mechanism (11) comprises a U-shaped water trough (111), a sedimentation tank water inlet pipe (112) and a grid (113); the U-shaped water trough (111) is connected to the sedimentation tank body, and one end of the U-shaped water trough (111) is connected to the sedimentation tank water inlet pipe (112), and the other end is provided with a water outlet (1112), and the water outlet (1112) is provided with the grid (113).

6. The flocculation sedimentation tank superimposed filter tank structure according to claim 1, characterized in that: The water collection mechanism (14) comprises a finger-shaped groove (141), a drainage pipe (142) and a water outlet pipe (143); the water collection mechanism (14) is in communication with the sedimentation portion (13); The finger-shaped groove (141) is connected to the sedimentation tank body, and the finger-shaped groove (141) is connected to the filter tank structure (2) through the drainage pipe (142), and the finger-shaped groove (141) is used to discharge the raw water after flowing through the sedimentation part (13) and sedimentation into the filter tank structure (2) through the drainage pipe (142); The outlet pipe (143) is connected to the sedimentation tank body, and the outlet pipe (143) is used to discharge the wastewater containing floccules that is deposited at the bottom of the sedimentation tank body.

7. The flocculation sedimentation tank superimposed filter tank structure according to claim 2, characterized in that: The sedimentation tank structure (1) further comprises a mud suction mechanism (15); The mud suction mechanism (15) comprises a guide rail (151) connected to the sedimentation tank body, and a truss-type siphon mud suction machine (152) is slidably connected to the guide rail (151).

8. The flocculation sedimentation tank superimposed filter tank structure according to any one of claims 2 to 7, characterized in that: The sedimentation tank body is provided with mud discharge pipes at intervals between the flocculation mechanism (12) and the sedimentation part (13).

9. The flocculation sedimentation tank superimposed filter tank structure according to claim 1, characterized in that: The filter tank structure (2) comprises a water inlet pipe (21) and a filter tank body (22), wherein the water inlet pipe (21) is connected to the filter tank body (22), and the water inlet pipe (21) is connected to the water outlet end of the sedimentation tank structure (1); The filter tank body (22) is provided with a supporting layer (222), a fine gravel layer (223) and a quartz sand layer (224) in sequence from bottom to top, and the supporting layer (222), the fine gravel layer (223) and the quartz sand layer (224) are used to filter raw water.

10. The flocculation sedimentation tank superimposed filter tank structure according to claim 9, characterized in that: A backwashing pipe (221) is provided in the filter body (22) for backwashing the filter body (22).

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