Compact cylindrical high-density precipitation equipment

Abstract

A first reaction zone, a second reaction zone and a flocculation zone are arranged in a cylindrical coagulation and flocculation basin of the compact cylindrical high-density sedimentation equipment, and a coagulation and flocculation basin water inlet, a coagulation and flocculation basin water outlet and a dosing port are formed in the side part of the cylindrical coagulation and flocculation basin; a water inlet of the coagulation and flocculation basin is communicated with the first reaction zone, and the first reaction zone is communicated with the second reaction zone; the flocculation zone is provided with a water inlet assembly, a guide cylinder and an adding ring; one end of the water inlet assembly is communicated with the second reaction zone; a water outlet of the coagulation and flocculation basin is communicated with the flocculation area, and a dosing port is communicated with a dosing ring through a pipeline; a clear water area, an inclined pipe area, a settling area and a sludge discharge area are arranged in the cylindrical settling pond, and a settling pond water inlet and a settling pond water outlet are formed in the outer side of the cylindrical settling pond; a water outlet of the coagulation and flocculation basin is communicated with the interior of the sedimentation area. The utility model solves the problems of poor buffering capacity, high manufacturing cost and large occupied area caused by the limitation of transportation and a pool body structure in the traditional structure.

Description

Technical Field

[0001] The utility model relates to a compact cylindrical high-density precipitation device, belonging to the technical field of precipitation equipment. Background Art

[0002] High-density sedimentation tank, also known as high-density tank, is a new type of clarification sedimentation tank that couples inclined tube sedimentation and sludge return. It has the advantages of high integration, strong flexibility and large processing capacity. The steel high-density tank solves the problems of traditional concrete high-density tanks, such as high construction difficulty and inability to move after completion.

[0003] In the prior art, both concrete high-density tanks and steel high-density tanks are mainly square. In actual use, due to the limitation of road transportation size and the structural requirements of high-density tanks, the size of steel high-density tanks is greatly restricted, especially in terms of height, resulting in poor buffering capacity. If manufactured on site, it is restricted by factors such as weather and site, with a long construction period, low processing quality, and poor anti-corrosion effect. The manufacturing cost of steel high-density tanks is high, the internal partition structure is relatively complex, the anti-corrosion construction is difficult, and the anti-corrosion is easy to fall off, causing corrosion of the tank body. In addition, steel high-density tanks occupy a large area and have high civil engineering foundation costs. During operation, since the sludge needs to be continuously refluxed, sludge is easily accumulated around the square structure of the tank body, which causes great difficulties for operation. Utility Model Content

[0004] The utility model aims at the deficiencies in the prior art and provides a compact cylindrical high-density sedimentation equipment to solve the problems that the traditional structure is limited by transportation and pool structure, resulting in poor buffering capacity, high manufacturing cost, large floor space and the like.

[0005] The utility model solves the above technical problems with the following technical solutions: A compact cylindrical high-density sedimentation device, comprising a cylindrical coagulation and flocculation tank and a cylindrical sedimentation tank;

[0006] The cylindrical coagulation and flocculation tank is provided with a first reaction zone, a second reaction zone and a flocculation zone inside, and a coagulation and flocculation tank water inlet, a coagulation and flocculation tank water outlet and a dosing port are provided on the side of the cylindrical coagulation and flocculation tank; the first reaction zone is located below the second reaction zone, and the second reaction zone is located between the first reaction zone and the flocculation zone; the coagulation and flocculation tank water inlet is connected to the first reaction zone, and the first reaction zone is connected to the second reaction zone; the flocculation zone is provided with a water inlet assembly, a guide tube and a dosing ring; one end of the water inlet assembly is connected to the second reaction zone, and the other end of the water inlet assembly is connected to the guide tube; the coagulation and flocculation tank water outlet is connected to the flocculation zone, the dosing ring is fixed on the edge of the guide tube, and the dosing port is connected to the dosing ring through a pipeline;

[0007] The interior of the cylindrical sedimentation tank is provided with a clear water area, an inclined pipe area, a sedimentation area and a mud discharge area, and the outer side of the cylindrical sedimentation tank is provided with a sedimentation tank water inlet and a sedimentation tank water outlet; the clear water area is arranged above the inclined pipe area, the inclined pipe area is between the clear water area and the sedimentation area, and the mud discharge area is below the sedimentation area; the coagulation and flocculation tank outlet is connected to the interior of the sedimentation area through the sedimentation tank water inlet pipe via the sedimentation tank water inlet; the sedimentation tank outlet is connected to the clear water area.

[0008] As a preferred solution of the compact cylindrical high-density precipitation equipment, a first end cap is provided on the top of the first reaction zone, and the first reaction zone is connected to the second reaction zone via the first end cap;

[0009] A second end cap is disposed on the top of the second reaction zone, and the second reaction zone is connected to a water inlet component of the second reaction zone via the second end cap.

[0010] As a preferred solution for compact cylindrical high-density sedimentation equipment, the cylindrical coagulation and flocculation tank is also provided with a stirring mechanism, the stirring mechanism includes a stirring motor and a stirring shaft, the stirring motor is arranged at the top of the cylindrical coagulation and flocculation tank, the stirring shaft is connected to the stirring motor, and the stirring shaft extends into the flocculation zone, the second reaction zone and the first reaction zone in sequence; the stirring shaft also passes through the center holes of the guide cylinder, the water inlet assembly, the second head and the first head;

[0011] The stirring shaft is provided with a first stirring blade in the flocculation zone, the stirring shaft is provided with a second stirring blade in the second reaction zone, and the stirring shaft is provided with a third stirring blade in the first reaction zone.

[0012] As a preferred solution for the compact cylindrical high-density sedimentation equipment, a limit plate is provided inside the sedimentation zone, and the limit plate is located below the end of the water inlet pipe of the sedimentation tank.

[0013] As a preferred solution for the compact cylindrical high-density sedimentation equipment, the mud discharge area is provided with a mud collecting bucket, the opening of the mud collecting bucket faces the sedimentation area, and the side of the mud collecting bucket is connected to a sludge discharge pipe.

[0014] As a preferred solution for the compact cylindrical high-density sedimentation equipment, the inclined tube area is provided with an inclined tube support plate, and the upper end of the inclined tube support plate is provided with an inclined tube body.

[0015] As a preferred solution for the compact cylindrical high-density sedimentation equipment, the clean water area is provided with a water collecting tank, and a triangular weir is provided on the upper part of the water collecting tank.

[0016] As a preferred solution for compact cylindrical high-density sedimentation equipment, a first inspection manhole is provided on the side of the cylindrical coagulation and flocculation tank; a second inspection manhole and a sampling port are provided on the side of the cylindrical sedimentation tank.

[0017] As a preferred solution for the compact cylindrical high-density sedimentation equipment, the top of the cylindrical coagulation and flocculation tank and the top of the cylindrical sedimentation tank are provided with guardrails that are interconnected; the guardrails are connected with a spiral ladder.

[0018] The beneficial effects of the utility model are as follows: a cylindrical coagulation and flocculation tank and a cylindrical sedimentation tank are provided; a first reaction zone, a second reaction zone and a flocculation zone are provided inside the cylindrical coagulation and flocculation tank, and a coagulation and flocculation tank water inlet, a coagulation and flocculation tank water outlet and a dosing port are provided on the side of the cylindrical coagulation and flocculation tank; the first reaction zone is located below the second reaction zone, and the second reaction zone is located between the first reaction zone and the flocculation zone; the coagulation and flocculation tank water inlet is connected to the first reaction zone, and the first reaction zone is connected to the second reaction zone; the flocculation zone is provided with a water inlet assembly, a guide tube and a dosing ring; one end of the water inlet assembly is connected to the second reaction zone , the other end of the water inlet assembly is connected to the guide tube; the water outlet of the coagulation and flocculation tank is connected to the flocculation area, the dosing ring is fixed on the edge of the guide tube, and the dosing port is connected to the dosing ring through a pipeline; the interior of the cylindrical sedimentation tank is provided with a clear water area, an inclined pipe area, a sedimentation area and a mud discharge area, and the outside of the cylindrical sedimentation tank is provided with a sedimentation tank inlet and a sedimentation tank outlet; the clear water area is arranged above the inclined pipe area, the inclined pipe area is between the clear water area and the sedimentation area, and the mud discharge area is below the sedimentation area; the water outlet of the coagulation and flocculation tank is connected to the interior of the sedimentation area through the sedimentation tank inlet pipe and the sedimentation tank inlet; the water outlet of the sedimentation tank is connected to the clear water area. The utility model adopts a cylindrical structure, which is stronger than a square structure. It can not only reduce the wall thickness of the pool body, but also reduce the internal and external reinforcement ribs, reduce weight, and reduce manufacturing and civil engineering costs; and the circular outer wall is smoother, which is convenient for spraying anti-corrosion coatings; considering road transportation, the height of the cylindrical structure sedimentation tank with the same processing capacity can be 2 times or more higher than that of the steel structure, and the buffering capacity is greatly improved. Even if the water quality fluctuates greatly, it will not affect the effluent water quality in a short time, and the stability is stronger; it can effectively use gravity to settle the sludge, saving the purchase and use costs of scrapers; it can reduce the number of mixers and the floor space occupied by motors, and reduce the amount of operation and management costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0020] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0021] Figure 1 It is a schematic diagram of the overall structure of a compact cylindrical high-density precipitation device provided in an embodiment of the utility model;

[0022] Figure 2 It is a cross-sectional schematic diagram of a cylindrical coagulation and flocculation tank in a compact cylindrical high-density sedimentation device provided in an embodiment of the utility model;

[0023] Figure 3 It is a top view schematic diagram of a cylindrical coagulation and flocculation tank in a compact cylindrical high-density sedimentation device provided in an embodiment of the utility model;

[0024] Figure 4 It is a cross-sectional schematic diagram of a cylindrical sedimentation tank in a compact cylindrical high-density sedimentation device provided in an embodiment of the utility model;

[0025] Figure 5 It is a top view schematic diagram of a cylindrical sedimentation tank in a compact cylindrical high-density sedimentation device provided in an embodiment of the utility model;

[0026] Figure 6 It is a schematic diagram of the stirring mechanism of the compact cylindrical high-density precipitation equipment provided in the embodiment of the utility model.

[0027] In the figure, 1, cylindrical coagulation and flocculation tank; 2, cylindrical sedimentation tank; 3, stirring mechanism; 4, spiral ladder; 11, first reaction zone; 111, first end cap; 12, second reaction zone; 121, second end cap; 13, flocculation zone; 131, water inlet assembly; 132, guide tube; 133, dosing ring; 14, guardrail; 15, first inspection manhole; 16, coagulation and flocculation tank inlet; 17, coagulation and flocculation tank outlet; 18, dosing port; 21, sludge discharge zone; 211, sludge collecting bucket; 212, sludge discharge pipe; 22, sedimentation zone; 221, limit Plate; 222, sedimentation tank water inlet pipe; 23, inclined pipe area; 231, inclined pipe support plate; 232, inclined pipe body; 24, clean water area; 241, water collecting trough; 242, triangular weir; 26, second inspection manhole; 27, sampling port; 28, sedimentation tank water outlet; 29, sedimentation tank water inlet; 31, third stirring blade; 32, second stirring blade; 33, first stirring blade; 34, stirring motor; 35, stirring shaft. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0030] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , the embodiment of the utility model provides a compact cylindrical high-density sedimentation equipment, including a cylindrical coagulation and flocculation tank 1 and a cylindrical sedimentation tank 2;

[0031] Among them, the cylindrical coagulation and flocculation tank 1 is provided with a first reaction zone 11, a second reaction zone 12 and a flocculation zone 13 inside, and a coagulation and flocculation tank water inlet 16, a coagulation and flocculation tank water outlet 17 and a dosing port 18 are provided on the side of the cylindrical coagulation and flocculation tank 1; the first reaction zone 11 is located below the second reaction zone 12, and the second reaction zone 12 is located between the first reaction zone 11 and the flocculation zone 13; the coagulation and flocculation tank water inlet 16 is connected to the first reaction zone 11, and the first reaction zone 11 is connected to the second reaction zone 12; the flocculation zone 13 is provided with a water inlet component 131, a guide tube 132 and a dosing ring 133; one end of the water inlet component 131 is connected to the second reaction zone 12, and the other end of the water inlet component 131 is connected to the guide tube 132; the coagulation and flocculation tank water outlet 17 is connected to the flocculation zone 13, the dosing ring 133 is fixed on the edge of the guide tube 132, and the dosing port 18 is connected to the dosing ring 133 through a pipeline;

[0032] Among them, the interior of the cylindrical sedimentation tank 2 is provided with a clear water area 24, an inclined pipe area 23, a sedimentation area 22 and a mud discharge area 21, and the outside of the cylindrical sedimentation tank 2 is provided with a sedimentation tank water inlet 29 and a sedimentation tank water outlet 28; the clear water area 24 is arranged above the inclined pipe area 23, the inclined pipe area 23 is between the clear water area 24 and the sedimentation area 22, and the mud discharge area 21 is below the sedimentation area 22; the coagulation and flocculation tank outlet 17 is connected to the interior of the sedimentation area 22 through the sedimentation tank water inlet pipe 222 via the sedimentation tank water inlet 29; the sedimentation tank outlet 28 is connected to the clear water area 24.

[0033] In this embodiment, a first end cap 111 is provided on the top of the first reaction zone 11, and the first reaction zone 11 is connected to the second reaction zone 12 via the first end cap 111; a second end cap 121 is provided on the top of the second reaction zone 12, and the second reaction zone 12 is connected to the water inlet assembly 131 of the second reaction zone 12 via the second end cap 121; the cylindrical coagulation and flocculation tank 1 is also provided with a stirring mechanism 3, and the stirring mechanism 3 includes a stirring motor 34 and a stirring shaft 35, and the stirring motor 34 is arranged at the cylindrical coagulation and flocculation tank 1 At the top, the stirring shaft 35 is connected to the stirring motor 34, and the stirring shaft 35 extends into the flocculation zone 13, the second reaction zone 12 and the first reaction zone 11 in sequence; the stirring shaft 35 also passes through the guide tube 132, the water inlet assembly 131, the second head 121 and the center hole of the first head 111; the stirring shaft 35 is provided with a first stirring blade 33 in the flocculation zone 13, the stirring shaft 35 is provided with a second stirring blade 32 in the second reaction zone 12, and the stirring shaft 35 is provided with a third stirring blade 31 in the first reaction zone 11.

[0034] Specifically, the outer shell of the cylindrical coagulation and flocculation tank 1 is provided with a coagulation and flocculation tank water inlet 16, a coagulation and flocculation tank water outlet 17, a dosing port 18 and a first inspection manhole 15. The dosing port 18 is a collection of all dosing ports of the first reaction zone 11 and the second reaction zone 12, and the number and size can be adjusted according to actual process requirements.

[0035] There is a certain gap between the limit plate 221 and the water inlet pipe of the flocculation zone 13 to facilitate water flow; the upper surface of the upper limit baffle is only opened at the center position to facilitate the transmission of the stirring shaft 35, and the rest of the position is closed to prevent the sludge from sinking to the reaction zone. The lower part of the dosing ring 133 is opened to facilitate the uniform addition of PAM; the dosing ring 133 also has a flushing water outlet to prevent blockage.

[0036] The stirring mechanism 3 is provided with a first stirring blade 33, a second stirring blade 32, and a third stirring blade 31 from bottom to top, and the stirring shaft 35 is provided with a sleeve shaft structure, so that the second stirring blade 32, the third stirring blade 31 in the reaction zone and the first stirring blade 33 in the flocculation zone 13 have different rotation speeds to meet the use requirements of different partitions. The stirring mechanism 3 can adjust parameters such as blade diameter and rotation speed according to actual needs.

[0037] Specifically, the sleeve shaft structure of the stirring mechanism 3 is an internal shaft that penetrates the flocculation zone 13, the second reaction zone 12 and the first reaction zone 11, and drives two layers of blades to stir the first reaction zone 11 and the second reaction zone 12 respectively. The blade surfaces of the second stirring blade 32 and the third stirring blade 31 are inclined upward, which promotes uniform dissolution and reaction of the reagent and drives the water flow upward; the external shaft drives the first stirring blade 33 to stir in the guide tube 132, drives the water flow to circulate rapidly in the guide tube 132, promotes the PAM to play a role, and forms a large number of flocs.

[0038] In this embodiment, a limit plate 221 is provided inside the sedimentation area 22, and the limit plate 221 is located below the end of the sedimentation tank inlet pipe 222; the mud discharge area 21 is provided with a mud collecting bucket 211, the opening of the mud collecting bucket 211 faces the sedimentation area 22, and the side of the mud collecting bucket 211 is connected to the sludge discharge pipe 212; the inclined pipe area 23 is provided with an inclined pipe support plate 231, and the upper end of the inclined pipe support plate 231 is distributed with an inclined pipe body 232; the clean water area 24 is provided with a water collecting trough 241, and the upper part of the water collecting trough 241 is provided with a triangular weir 242.

[0039] Specifically, under the action of the limit plate 221, the water flows upward. The flocs with larger particles directly settle to the sludge collecting bucket 211, and the flocs with small particles settle to the sludge collecting bucket 211 after contacting the inclined tube body 232 in the inclined tube area 23. The water flows through the triangular weir 242 and the water collecting tank 241 of the clean water area 24, and finally discharges the produced water through the water outlet 28 of the sedimentation tank. The sludge in the sludge collecting bucket 211 settles by gravity and is discharged through the sludge discharge pipe 212. At the same time, the discharged sludge can be returned to the guide tube 132 by a sludge pump.

[0040] In a possible embodiment, a first inspection manhole 15 is provided on the side of the cylindrical coagulation and flocculation tank 1; a second inspection manhole 26 and a sampling port 27 are provided on the side of the cylindrical sedimentation tank 2. The first inspection manhole 15 facilitates the inspection of the cylindrical coagulation and flocculation tank 1, the second inspection manhole 26 facilitates the inspection of the cylindrical sedimentation tank 2, and the sampling port 27 facilitates sampling of the cylindrical sedimentation tank 2.

[0041] In a possible embodiment, the top of the cylindrical coagulation and flocculation tank 1 and the top of the cylindrical sedimentation tank 2 are provided with mutually connected guardrails 14; the guardrails 14 are connected with a spiral ladder 4. The design of the guardrails 14 and the spiral ladder 4 facilitates the maintenance of the tops of the cylindrical coagulation and flocculation tank 1 and the cylindrical sedimentation tank 2.

[0042] In a possible embodiment, a certain gap is left between the limiting plate 221 and the sedimentation tank water inlet pipe 222 to facilitate water flow; the upper surface of the limiting plate 221 is only opened at the center position to facilitate the transmission of the stirring shaft 35 of the stirring mechanism 3, and the remaining positions of the limiting plate 221 are closed to prevent the sludge from sinking to the reaction zone. The limiting plate 221 prevents the influent from short-flowing and impacting the inclined tube body 232; the limiting plate 221 can also prevent the influent water flow from impacting the sludge in the sludge collecting bucket 211.

[0043] In a possible embodiment, the mud collecting bucket 211 has an inclination angle of 45° to 60°, which is convenient for sludge to be discharged by gravity and does not require a mud scraper, thereby reducing costs.

[0044] The operating principle of the utility model is as follows:

[0045] The raw water enters the first reaction zone 11 of the cylindrical coagulation and flocculation tank 1 from the water inlet 16 of the coagulation and flocculation tank, and fully reacts with the reagent added at the dosing port 18 through the stirring and lifting action of the third stirring blade 31 of the first reaction zone 11. After staying in the first reaction zone 11 for 2 minutes, it passes upward through the first end cap 111 to enter the second reaction zone 12. After the stirring and lifting action of the second stirring blade 32 of the second reaction zone 12, it fully reacts with the reagent added at the dosing port 18. After staying in the second reaction zone 12 for 2 minutes, it passes upward through the second end cap 121 and the water inlet assembly 131 to enter the guide tube 132. The upper surface of the top baffle of the water inlet assembly 131 has only a hole in the center position to facilitate the transmission of the stirring mechanism 3, and the rest of the positions are closed to prevent the sludge from sinking into the reaction zone. Under the stirring and circulation action of the first stirring blade 33, the influent and return sludge and the PAM added by the dosing ring 133 fully react to form a large number of flocs. After staying in the flocculation area 13 for 8-15 minutes, the water flows into the sedimentation area 22 in the cylindrical sedimentation tank 2 through the coagulation flocculation tank outlet 17 and the sedimentation tank inlet pipe 222. Under the action of the limit plate 221 in the sedimentation area 22, the water flows upward. The flocs with larger particles directly settle to the sludge collecting bucket 211, and the flocs with small particles settle to the sludge collecting bucket 211 after contacting the inclined tube body 232 in the inclined tube area 23. The water flow finally passes through the triangular weir 242 and the water collection tank 241 of the clear water area 24, and the produced water is discharged through the sedimentation tank outlet 28. The sludge in the sludge collecting bucket 211 settles by gravity, and is discharged through the sludge discharge pipe 212 or returned to the guide tube 132 by a sludge pump.

[0046] In summary, the utility model is provided with a cylindrical coagulation and flocculation tank 1 and a cylindrical sedimentation tank 2; the cylindrical coagulation and flocculation tank 1 is provided with a first reaction zone 11, a second reaction zone 12 and a flocculation zone 13, and the side of the cylindrical coagulation and flocculation tank 1 is provided with a coagulation and flocculation tank water inlet 16, a coagulation and flocculation tank water outlet 17 and a dosing port 18; the first reaction zone 11 is located below the second reaction zone 12, and the second reaction zone 12 is located between the first reaction zone 11 and the flocculation zone 13; the coagulation and flocculation tank water inlet 16 is connected to the first reaction zone 11, and the first reaction zone 11 is connected to the second reaction zone 12; the flocculation zone 13 is provided with a water inlet assembly 131, a guide tube 132 and a dosing ring 133; one end of the water inlet assembly 131 is connected to the second reaction zone 12, and the water inlet assembly 133 is connected to the second reaction zone 12. The other end is connected to the guide tube 132; the coagulation and flocculation tank outlet 17 is connected to the flocculation zone 13, the dosing ring 133 is fixed on the edge of the guide tube 132, and the dosing port 18 is connected to the dosing ring 133 through a pipeline; the interior of the cylindrical sedimentation tank 2 is provided with a clear water area 24, an inclined pipe area 23, a sedimentation area 22 and a mud discharge area 21, and the outer side of the cylindrical sedimentation tank 2 is provided with a sedimentation tank inlet 29 and a sedimentation tank outlet 28; the clear water area 24 is arranged above the inclined pipe area 23, the inclined pipe area 23 is between the clear water area 24 and the sedimentation area 22, and the mud discharge area 21 is below the sedimentation area 22; the coagulation and flocculation tank outlet 17 is connected to the interior of the sedimentation area 22 through the sedimentation tank inlet pipe 222 via the sedimentation tank inlet 29; the sedimentation tank outlet 28 is connected to the clear water area 24. The utility model adopts a cylindrical structure, which is stronger than a square structure. It can not only reduce the wall thickness of the pool body, but also reduce the internal and external reinforcement ribs, reduce weight, and reduce manufacturing and civil engineering costs; and the circular outer wall is smoother, which is convenient for spraying anti-corrosion coatings; considering road transportation, the height of the cylindrical structure sedimentation tank with the same processing capacity can be 2 times or more higher than that of the steel structure, and the buffering capacity is greatly improved. Even if the water quality fluctuates greatly, it will not affect the effluent water quality in a short time, and the stability is stronger; it can effectively use gravity to settle the sludge, saving the purchase and use costs of scrapers; it can reduce the number of mixers and the floor space occupied by motors, and reduce the amount of operation and management costs.

[0047] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0048] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A compact cylindrical high-density precipitation device, characterized in that: It comprises a cylindrical coagulation and flocculation tank (1) and a cylindrical sedimentation tank (2); The cylindrical coagulation and flocculation tank (1) is provided with a first reaction zone (11), a second reaction zone (12) and a flocculation zone (13) inside, and a coagulation and flocculation tank water inlet (16), a coagulation and flocculation tank water outlet (17) and a dosing port (18) on the side of the cylindrical coagulation and flocculation tank (1); the first reaction zone (11) is located below the second reaction zone (12), and the second reaction zone (12) is located between the first reaction zone (11) and the flocculation zone (13); the coagulation and flocculation tank water inlet (16) is connected to the first reaction zone (11), and the second reaction zone (12) is connected to the first reaction zone (11). A reaction zone (11) is connected to the second reaction zone (12); the flocculation zone (13) is provided with a water inlet assembly (131), a flow guide tube (132) and a dosing ring (133); one end of the water inlet assembly (131) is connected to the second reaction zone (12), and the other end of the water inlet assembly (131) is connected to the flow guide tube (132); the water outlet (17) of the coagulation and flocculation tank is connected to the flocculation zone (13), the dosing ring (133) is fixed to the edge of the flow guide tube (132), and the dosing port (18) is connected to the dosing ring (133) through a pipeline; The cylindrical sedimentation tank (2) is provided with a clear water area (24), an inclined tube area (23), a sedimentation area (22) and a mud discharge area (21) inside, and the outside of the cylindrical sedimentation tank (2) is provided with a sedimentation tank water inlet (29) and a sedimentation tank water outlet (28); the clear water area (24) is arranged above the inclined tube area (23), the inclined tube area (23) is located between the clear water area (24) and the sedimentation area (22), and the mud discharge area (21) is located below the sedimentation area (22); the coagulation and flocculation tank outlet (17) is connected to the inside of the sedimentation area (22) through the sedimentation tank water inlet pipe (222) via the sedimentation tank water inlet (29); and the sedimentation tank water outlet (28) is connected to the clear water area (24).

2. A compact cylindrical high-density precipitation device according to claim 1, characterized in that: A first sealing head (111) is provided on the top of the first reaction zone (11), and the first reaction zone (11) is connected to the second reaction zone (12) via the first sealing head (111); A second end cap (121) is provided at the top of the second reaction zone (12), and the second reaction zone (12) is connected to a water inlet assembly (131) of the second reaction zone (12) via the second end cap (121).

3. A compact cylindrical high-density precipitation device according to claim 2, characterized in that: The cylindrical coagulation and flocculation tank (1) is also provided with a stirring mechanism (3), the stirring mechanism (3) comprising a stirring motor (34) and a stirring shaft (35), the stirring motor (34) being arranged at the top of the cylindrical coagulation and flocculation tank (1), the stirring shaft (35) being connected to the stirring motor (34), the stirring shaft (35) extending into the flocculation zone (13), the second reaction zone (12) and the first reaction zone (11) in sequence; the stirring shaft (35) also passes through the center holes of the guide tube (132), the water inlet assembly (131), the second end cap (121) and the first end cap (111); The stirring shaft (35) is provided with a first stirring blade (33) in the flocculation zone (13), the stirring shaft (35) is provided with a second stirring blade (32) in the second reaction zone (12), and the stirring shaft (35) is provided with a third stirring blade (31) in the first reaction zone (11).

4. A compact cylindrical high-density precipitation device according to claim 1, characterized in that: A limiting plate (221) is provided inside the sedimentation area (22), and the limiting plate (221) is located below the end of the sedimentation tank water inlet pipe (222).

5. A compact cylindrical high-density precipitation device according to claim 4, characterized in that: The mud discharge area (21) is provided with a mud collecting bucket (211), the opening of the mud collecting bucket (211) faces the sedimentation area (22), and the side of the mud collecting bucket (211) is connected to a mud discharge pipe (212).

6. A compact cylindrical high-density precipitation device according to claim 4, characterized in that: The inclined tube area (23) is provided with an inclined tube support plate (231), and an inclined tube body (232) is distributed on the upper end of the inclined tube support plate (231).

7. A compact cylindrical high-density precipitation device according to claim 4, characterized in that: The clean water area (24) is provided with a water collecting trough (241), and a triangular weir (242) is provided on the upper part of the water collecting trough (241).

8. A compact cylindrical high-density precipitation device according to claim 1, characterized in that: A first inspection manhole (15) is provided on the side of the cylindrical coagulation and flocculation tank (1); a second inspection manhole (26) and a sampling port (27) are provided on the side of the cylindrical sedimentation tank (2).

9. A compact cylindrical high-density precipitation device according to claim 1, characterized in that: The top of the cylindrical coagulation and flocculation tank (1) and the top of the cylindrical sedimentation tank (2) are provided with guardrails (14) that are interconnected; the guardrails (14) are connected to a spiral ladder (4).

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