CN220098694U - Polygonal perforated rotational flow flocculation tank - Google Patents

Polygonal perforated rotational flow flocculation tank Download PDF

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Publication number
CN220098694U
CN220098694U CN202321271733.XU CN202321271733U CN220098694U CN 220098694 U CN220098694 U CN 220098694U CN 202321271733 U CN202321271733 U CN 202321271733U CN 220098694 U CN220098694 U CN 220098694U
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vertical shaft
shaft
polygonal
shafts
water
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CN202321271733.XU
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薛英文
吴铭轩
李骁
陈可延
梁佳童
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Wuhan University WHU
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Wuhan University WHU
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Abstract

The utility model discloses a polygonal perforated rotational flow flocculation tank. The horizontal section of the vertical shaft is hexagonal, holes are formed in the side wall of the vertical shaft in an up-down staggered mode, and a guide plate is connected beside the holes at the water inlet position in the vertical shaft. Each vertical shaft is connected with a plurality of layers of grating plates; the mud discharging hopper is positioned at the bottom of the vertical shaft and adopts an inverted circular truncated cone structure. The device provided by the utility model is made of stainless steel, can be modularly manufactured in a factory, is convenient to assemble during site construction, and has the advantages of low construction difficulty and high construction quality. The flocculation equipment is suitable for various water treatment facilities, the flow state of water flow can be improved through the shaft structure with the hexagonal section, and the mixing and flocculation effects can be better achieved; the equipment is made of stainless steel materials, and the occupied area is small; the round bench type mud discharging hopper can improve mud discharging performance and solve the problem of sedimentation of the traditional flocculation tank.

Description

Polygonal perforated rotational flow flocculation tank
Technical Field
The utility model belongs to the technical field of water treatment, and particularly relates to a polygonal perforated rotational flow flocculation tank.
Background
Flocculation is an important water treatment technology, and can lead smaller particles in water to form large particles after flocculation under the action of a coagulant, and finally realize solid-liquid separation through gravity sedimentation. The perforated rotational flow flocculation tank is used as a common flocculation structure, performs flocculation and sludge discharge by utilizing hydraulic power, has the characteristics of short flocculation time, good flocculation effect, low energy consumption and the like, and is widely applied to various water treatment plants. However, the square structure adopted by the vertical shaft of the traditional perforated rotational flow flocculation tank is unfavorable for forming a water flow dead zone at four corners, vortex is not formed, the mud discharge hopper at the lower part is a quadrangular frustum pyramid, a mud bearing platform exists between the mud discharge hopper and the mud discharge pipe, flocculation is not favorable, and mud accumulation is easy to cause. In addition, the traditional perforated rotational flow flocculation tank adopts a reinforced concrete structure, and has the common problem that the sludge at the bottom of the end tank is a flocculation tank, so that the flocculation tank needs to be cleaned regularly, has certain maintenance cost, and has a single Chi Nengli of 10000-25000 m 3 The single vertical shaft is large in area, so that the total occupied area is large, the construction difficulty is high, and the method is not suitable for small-sized water plants with small investment and small water yield.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provides a novel perforated rotational flow flocculation tank.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a polygonal perforated cyclone flocculation basin comprising:
the mud discharging hopper is connected to a plurality of shafts, the shafts adopt hollow polygon prism structures, adjacent shafts are communicated through holes, and the polygon prism is at least a pentagonal prism. For example, a prismatic shaft, a hexagonal prism, a heptagonal prism, a nonagonal prism, or the like may be employed.
Optionally, the polygonal perforated cyclone flocculation tank has a hollow hexagonal prism structure in a vertical shaft, and the vertical shaft is arranged in a honeycomb shape.
Optionally, in the polygonal perforated cyclone flocculation tank, two vertically staggered perforations are formed in each side wall of the shaft, one perforation is used for water inflow, the other perforation is used for water outflow, and the two perforations are not on the same side face.
Optionally, in the polygonal perforated cyclone flocculation tank, a plurality of layers of grating plates are connected in the vertical shaft, and the grating plates are connected at different heights.
Optionally, in the polygonal perforated cyclone flocculation tank, the number of grid plates in the same shaft is gradually reduced from the water inlet end to the water outlet end.
Optionally, in the polygonal perforated rotational flow flocculation tank, a guide plate is connected to the side of the perforation of the inner wall of the vertical shaft for water inflow.
Optionally, in the polygonal perforated cyclone flocculation tank, the sludge discharge hopper gradually tapers from top to bottom.
Optionally, in the polygonal perforated cyclone flocculation tank, each perforation is an offset perforation, that is, the center point of the perforation is not coincident with the center line of the vertical shaft partition wall.
Optionally, the above-mentioned polygon perforation whirl flocculation tank, shaft and mud bucket all adopt stainless steel material, along the water flow direction, from starting end to terminal, the installation quantity of grid board reduces step by step in the different shafts, and the grid board hole area increases in the different shafts gradually.
Optionally, in the polygonal perforated cyclone flocculation tank, the upper part of the outer wall of the first shaft is connected with the water inlet pipe, the lower part of the outer wall of the last shaft is connected with the water outlet pipe, the bottom of the sludge discharge hopper is connected with the sludge discharge pipe, and the sludge discharge pipes of the shafts are communicated or independent.
Compared with the prior art, the utility model has the following beneficial effects:
1. the horizontal cross section of the vertical shaft is hexagonal.
1) The hexagonal section is more beneficial to forming vortex in the vertical shaft, so that more effective collision is generated among the flocs, and the flocculation efficiency is improved;
2) The hexagonal grating plates are connected in the vertical shaft, so that flocculation effect can be improved;
3) The installation quantity of the grating plates in the vertical shaft is gradually reduced from the starting end to the tail end, so that large flocs can be well formed at the starting end of the vertical shaft, and flocculation and crushing caused by overlarge flow velocity at the tail end are avoided;
4) The hexagonal shape of the flocculation tank can enable the shafts to be closely connected, so that occupied space is saved;
5) A single shaft can be adjacent to at most 6 shafts, so that flocculation Chi Shujing can be combined more, the overall shape of flocculation equipment is more changeable, more possibility is also improved for the water flow direction in the flocculation tank, and the proper flocculation tank can be designed by effectively utilizing irregularly-shaped space.
6) The guide plate is connected beside the perforation of the water inlet part of the inner wall of the vertical shaft, so that the flow state of water is more stable, and the flocculation efficiency is improved.
2. The mud discharging hopper is of an inverted circular truncated cone shape. The inverted circular table-shaped lower opening is circular and can be the same as the diameter of the circular sludge discharge pipe, so that the problem that a sludge accumulation platform exists between the bottom of the prismatic table-shaped sludge sedimentation bucket and the sludge discharge circular pipe is solved. Mud and water deposited at the bottom of the vertical shaft can completely enter the mud discharging pipe under the action of gravity, so that the cleaning is convenient.
3. The vertical shaft and the sludge discharge hopper are made of stainless steel.
1) The stainless steel material has good compression resistance and tensile resistance, stable chemical property, smooth surface and difficult adhesion of organisms, and compared with reinforced concrete materials, the stainless steel material has small site construction difficulty and high construction speed;
2) The modular flocculation basin equipment can also be produced through a factory and installed on site, so that the construction time is shortened and the construction quality is improved.
3) The stainless steel material can produce a vertical shaft with smaller cross section size, so that the flocculation tank can be suitable for a water treatment plant with smaller water yield.
4) Adopt the flocculation equipment of mill's modularization preparation, the mud pipe easy dismounting of mud bucket below, when mud pipe or mud valve are to be overhauld, can directly be dismantled and assembled outside the pond, overcome traditional net flocculation basin and need get into the shortcoming of operation in the shaft, the staff overhauls and operates more conveniently.
Drawings
Fig. 1: the utility model relates to a three-dimensional structure schematic diagram of an embodiment 1 of a polygonal perforated rotational flow flocculation tank.
Fig. 2: a schematic top view structure of an embodiment 1 of a polygonal perforated cyclone flocculation basin is shown.
Fig. 3: is schematically shown in the A-A cross-sectional structure of FIG. 2.
Fig. 4: is a schematic view of the B-B cross-sectional structure of FIG. 2.
Fig. 5: is a schematic view of the C-C cross-sectional structure of FIG. 2.
Fig. 6: is a schematic view of the D-D cross-sectional structure of FIG. 2.
Fig. 7: the utility model relates to a schematic diagram of a front view structure of an embodiment 1 of a polygonal perforated rotational flow flocculation tank.
Fig. 8: is a schematic view of the E-E cross-sectional structure of FIG. 7.
Fig. 9: is a schematic view of the F-F cross-sectional structure of FIG. 7.
Fig. 10: the three types of grid plates of the polygonal perforated cyclone flocculation tank are structural schematic diagrams.
Fig. 11: the utility model relates to a three-dimensional structure schematic diagram of an embodiment 2 of a polygonal perforated rotational flow flocculation tank.
Fig. 12: a schematic top view structure of an embodiment 2 of a polygonal perforated cyclone flocculation tank is shown.
In the figure: 1. a water inlet pipe; 2. a shaft; 3. a mud discharging bucket; 4. a mud pipe; 5. a water outlet pipe; 6. a grating plate; 601. a grid plate; 602. a B-type grating plate; 603. a C-shaped grating plate; 7. perforating; 8. and a deflector.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings and specific embodiments, wherein it is apparent that the embodiments described are merely some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art without making any inventive effort, are intended to be within the scope of the present utility model.
Example 1
As shown in figures 1-10, the polygonal perforated rotational flow flocculation tank comprises a water inlet pipe 1, a vertical shaft 2, a sludge discharge hopper 3, a sludge discharge pipe 4, a water outlet pipe 5 and a grating plate 6. In this embodiment, 9 shafts 2 are provided; the horizontal section of the vertical shaft 2 is hexagonal, and a plurality of grating plates 6 perpendicular to the water flow direction can be connected inside the vertical shaft 2; the grid plates 6 have the same shape as the horizontal section of the vertical shaft 2 and are hexagonal; the number of grating plates 6 in the single shaft 2 gradually decreases as the water flow advances; the mesh area of the grating plate 6 gradually becomes larger from the water inlet end to the water outlet end of the flocculation tank, and the grating plate is divided into an A-type grating plate 601, a B-type grating plate 602 and a C-type grating plate 603; adjacent shafts 2 are communicated through perforations 7, and the perforations 7 are staggered up and down; the water inlet of the perforation 7 is connected with a guide plate 8; the mud discharging hopper 3 adopts an inverted circular table; the top of the mud discharging hopper 3 is connected with the bottom of the vertical shaft 2, and the bottom of the mud discharging hopper 3 is connected with the mud discharging pipe 4; the mud pipes 3 can be connected with each other; the water inlet pipe 1 is connected with the vertical shaft 2, and the water outlet pipe 5 is connected with the vertical shaft 2. X in fig. 2: the water flow flows from near to far in the direction of the visual angle, and correspondingly, the water flow flows from top to bottom in the vertical shaft; fig. 2 shows: the water flow flows from far to near in the direction of the visual angle, and correspondingly flows from bottom to top in the vertical shaft.
Example 2
As shown in figures 11-12, the polygonal perforated rotational flow flocculation tank comprises a water inlet pipe 1, a vertical shaft 2, a sludge discharge hopper 3, a sludge discharge pipe 4, a water outlet pipe 5 and a grating plate 6. In this embodiment, 11 shafts 2 are provided; the horizontal section of the vertical shaft 2 is hexagonal, and a plurality of grating plates 6 perpendicular to the water flow direction can be connected inside the vertical shaft 2; the grid plates 6 have the same shape as the horizontal section of the vertical shaft 2 and are hexagonal; the number of grating plates 6 in the single shaft 2 gradually decreases as the water flow advances; the mesh area of the grating plate 6 gradually becomes larger from the water inlet end to the water outlet end of the flocculation tank, and the grating plate is divided into an A-type grating plate 601, a B-type grating plate 602 and a C-type grating plate 603; adjacent shafts 2 are communicated through perforations 7, and the perforations 7 are staggered up and down; the water inlet of the perforation 7 is connected with a guide plate 8; the mud discharging hopper 3 adopts an inverted circular table; the top of the mud discharging hopper 3 is connected with the bottom of the vertical shaft 2, and the bottom of the mud discharging hopper 3 is connected with the mud discharging pipe 4; the mud pipes 3 can be connected with each other; the water inlet pipe 1 is connected with the vertical shaft 2, and the water outlet pipe 5 is connected with the vertical shaft 2. In fig. 12, x represents: the water flow flows from near to far in the direction of the visual angle, and correspondingly, the water flow flows from top to bottom in the vertical shaft; fig. 12 shows: the water flow flows from far to near in the direction of the visual angle, and correspondingly flows from bottom to top in the vertical shaft.
The utility model discloses a polygonal perforated rotational flow flocculation tank. The horizontal cross section of each vertical shaft is hexagonal, two vertically staggered perforations are formed in the side wall of each vertical shaft, the two perforations are not on the same side face, and a guide plate is connected to the water inlet of each perforation. Each vertical shaft is connected with a plurality of layers of hexagonal grating plates; the mud discharging hopper is positioned at the bottom of the vertical shaft and adopts an inverted circular truncated cone structure. The device provided by the utility model is made of stainless steel, can be modularly manufactured in a factory, is convenient to assemble during site construction, and has the advantages of low construction difficulty and high construction quality. The flocculation equipment is suitable for various water treatment facilities, the flow state of water flow can be improved through the shaft structure with the hexagonal section, and the mixing and flocculation effects can be better achieved; the equipment is made of stainless steel materials, and the occupied area is small; the round bench type mud discharging hopper can improve mud discharging performance and solve the problem of sedimentation of the traditional flocculation tank.

Claims (7)

1. A polygonal perforated cyclone flocculation basin, comprising:
the bottoms of the vertical shafts are connected with a mud discharging hopper, the vertical shafts adopt a hollow polygonal column structure, adjacent vertical shafts are communicated through perforations, and the polygonal columns are at least pentagonal columns;
each vertical shaft side wall is provided with two vertically staggered perforations, one perforation is used for water inflow, the other perforation is used for water outflow, and the two perforations are not on the same side face;
the vertical shaft is connected with a plurality of layers of grating plates, and the grating plates are connected at different heights;
the number of grating plates in the same vertical shaft is gradually reduced from the water inlet end to the water outlet end.
2. A polygonal perforated rotational flow flocculation basin according to claim 1, wherein the shafts are of a hollow hexagonal prism structure, and the shafts are arranged in a honeycomb shape.
3. The polygonal perforated rotational flow flocculation tank of claim 1, wherein a baffle is connected to the side of the perforations in the inner wall of the shaft for water inflow.
4. A polygonal perforated cyclone flocculation basin according to claim 1, wherein the sludge discharge hopper tapers from top to bottom.
5. A polygonal perforated cyclone flocculation basin as claimed in claim 1, wherein each perforation is an off-side perforation, i.e. the centre point of the perforation does not coincide with the centre line of the shaft partition.
6. The polygonal perforated rotational flow flocculation basin of claim 1, wherein the shaft and the sludge discharge hopper are made of stainless steel, the number of the grid plates in different shafts is gradually reduced from the beginning to the end along the water flow direction, and the area of the holes of the grid plates in different shafts is gradually increased.
7. A polygonal perforated rotational flow flocculation basin according to claim 1 or 2, wherein the upper part of the outer wall of the first shaft is connected to a water inlet pipe, the lower part of the outer wall of the last shaft is connected to a water outlet pipe, the bottom of the sludge discharge hopper is connected to sludge discharge pipes, and the sludge discharge pipes of the shafts are communicated or independent.
CN202321271733.XU 2023-05-22 2023-05-22 Polygonal perforated rotational flow flocculation tank Active CN220098694U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321271733.XU CN220098694U (en) 2023-05-22 2023-05-22 Polygonal perforated rotational flow flocculation tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321271733.XU CN220098694U (en) 2023-05-22 2023-05-22 Polygonal perforated rotational flow flocculation tank

Publications (1)

Publication Number Publication Date
CN220098694U true CN220098694U (en) 2023-11-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321271733.XU Active CN220098694U (en) 2023-05-22 2023-05-22 Polygonal perforated rotational flow flocculation tank

Country Status (1)

Country Link
CN (1) CN220098694U (en)

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