Integrated high-efficiency clarification equipment

Abstract

This utility model discloses an integrated high-efficiency clarification device, relating to the technical field of clarification equipment. It includes a vortex grit settling zone, a reaction flocculation zone, a water distribution zone, a sedimentation and clarification zone, and an outlet zone. Wastewater enters the vortex grit settling zone through an inlet pipe, where tiny suspended solids and sand particles are separated, with the sand settling at the lower end of the vortex grit settling zone. After sedimentation, the wastewater flows into the reaction flocculation zone, where flocculants and coagulants are added to cause the suspended particles in the wastewater to aggregate and form flocs, thereby accelerating particle aggregation and achieving solid-liquid separation. The wastewater then flows through the water distribution zone and into the sedimentation and clarification zone. The upper part of the sedimentation and clarification zone is an inclined plate zone, and the lower part is a sludge hopper. The inclined plate zone reduces the size of the settler and improves sedimentation efficiency. The sediment remains in the sludge hopper, and the water is discharged through the outlet zone. This utility model has the advantages of small footprint and good clarification effect.

Description

Technical Field

[0001] This utility model belongs to the field of clarification equipment technology, specifically relating to an integrated high-efficiency clarification equipment. Background Technology

[0002] With rapid economic development, the contradiction between the ever-increasing demand for water and the shortage of water resources has become increasingly prominent. Industrial production has also raised its requirements for water quality, and the national economic development has increased the demand for water treatment systems. At the same time, it has also placed higher demands on the operational effectiveness and stability of water treatment systems.

[0003] Clarification tanks are an important process in raw water pretreatment systems and greywater reuse systems. Clarification tanks are generally classified into sludge circulation (recirculation) and sludge suspension (sludge filtration) types based on the sludge content. A clarification tank is a water treatment device that integrates coagulation and sludge-water separation, with the water flow mostly upwards. Clarification tanks have advantages such as high production capacity and good treatment effect; however, some clarification tanks are significantly affected by changes in influent water quality, quantity, temperature, and flocculant. The tank body is generally made of reinforced concrete, but small tanks can also be made of steel plates. The selection of the clarification tank type is mainly determined after a technical and economic comparison, based on influent water quality, effluent requirements, production scale, water plant layout, topography, geology, drainage conditions, etc. Currently, commonly used clarifier types include mechanical stirring clarifiers, hydraulic circulation clarifiers, pulse clarifiers, and suspended clarifiers. Each type has its own advantages and disadvantages. The disadvantages are that some have complex equipment and are difficult to maintain, some require a large amount of chemicals and have a large head consumption, and some are less adaptable to changes in water quality and temperature and are more sensitive to factors such as influent volume and water temperature. It is difficult to balance the advantages of each type of clarifier.

[0004] Chinese patent publication number CN103466835A, published on December 25, 2013, discloses an integrated clarifier. The clarifier is a circular tank with six working zones: a mixing and distribution zone, an enhanced flocculation zone, a primary clarification zone, a secondary clarification zone, an effluent zone, and a sludge thickening zone. An inlet pipe connects to the mixing and distribution zone from the bottom of the tank. The enhanced flocculation zone is arranged in a ring around the mixing and distribution zone, the primary clarification zone is arranged in a ring around the enhanced flocculation zone, the secondary clarification zone is arranged in a ring around the primary clarification zone, and the effluent zone is arranged in a ring around the secondary clarification zone. The effluent pipe is located at the bottom of the effluent zone and serves as the main effluent pipe for the integrated clarifier. The sludge thickening zone is located at the bottom of the enhanced flocculation zone. A secondary clarification device is installed in the secondary clarification zone, integrating reaction, clarification, and thickening into one unit. The clarification unit spans an integrated clarifier tank, simultaneously functioning in the enhanced flocculation zone, primary clarification zone, and secondary clarification zone. Water distribution holes in the mixing and distribution zone are evenly distributed at the upper end; water outlet holes in the enhanced flocculation zone are evenly distributed in the lower middle part of the outer partition wall; water inlet holes in the secondary clarification zone are evenly distributed in the lower part of the middle partition wall; and water outlet distribution holes are evenly distributed in the upper part of the outer wall. Sludge discharge holes in the secondary clarification zone are evenly distributed at the bottom of the middle partition wall; sludge discharge holes on the inner side of the secondary clarification zone are evenly distributed at the bottom of the inner partition wall; and sludge discharge holes on the inner side of the primary clarification zone are evenly distributed at the bottom of the inner partition wall. Vent pipes and sludge discharge pipes extend from the bottom of the sludge thickening zone, used for venting during clarifier maintenance and for sludge discharge during normal operation, respectively. This unit has the disadvantage of requiring a large footprint. Utility Model Content

[0005] The purpose of this invention is to solve the problems of existing technologies and provide an integrated, high-efficiency clarification device. Wastewater enters the vortex settling zone through the inlet pipe, where tiny suspended solids and sand particles are separated, with the sand settling at the lower end of the vortex settling zone. After sedimentation, the wastewater flows into the reaction flocculation zone, where flocculants and coagulants are added to cause the suspended particles in the wastewater to aggregate and form flocs, thereby accelerating particle aggregation and achieving solid-liquid separation. The wastewater then flows through the distribution zone and into the sedimentation and clarification zone. The upper part of the sedimentation and clarification zone is an inclined plate zone, and the lower part is a sludge hopper. The inclined plate zone reduces the size of the settler and improves sedimentation efficiency. The sediment remains in the sludge hopper, and the water is discharged through the outlet zone. This invention has the advantages of small footprint and good clarification effect.

[0006] This utility model is achieved through the following technical solution: An integrated high-efficiency clarification device includes a vortex grit settling zone, a reaction flocculation zone, a water distribution zone, a sedimentation and clarification zone, and an outlet zone. The vortex grit settling zone is equipped with an inlet pipe. The vortex grit settling zone is connected to the reaction flocculation zone, which is connected to the water distribution zone. The water distribution zone is connected to the sedimentation and clarification zone. The upper end of the sedimentation and clarification zone is an inclined plate zone, which is filled with packing material. The lower end of the sedimentation and clarification zone is a sludge hopper. The upper end of the inclined plate zone is connected to the outlet zone.

[0007] Preferably, the swirling sedimentation zone is a circular pool.

[0008] Preferably, the axis of the water inlet pipe is tangent to the inner wall of the circular pool.

[0009] Preferably, a first mud discharge pipe is provided at the lower end of the vortex sedimentation zone, and a first mud discharge valve is provided on the first mud discharge pipe.

[0010] Preferably, a stirring device is provided in the reaction flocculation zone.

[0011] Preferably, a pH meter is installed in the reaction flocculation zone.

[0012] Preferably, multiple mud buckets are provided.

[0013] Preferably, a second mud pipe is provided at the lower end of the mud hopper, and a second mud valve is provided on the second mud pipe.

[0014] Preferably, a weir plate is provided in the water outlet area.

[0015] Preferably, the weir plate is a triangular sawtooth weir plate.

[0016] Compared with the prior art, this utility model has the following advantages and beneficial effects: I. The integrated high-efficiency clarification equipment provided by this utility model allows wastewater to enter the vortex settling zone through the inlet pipe. Tiny suspended solids and sand particles are separated in the wastewater, with the sand settling at the lower end of the vortex settling zone. After sedimentation, the wastewater flows into the reaction flocculation zone, where flocculants and coagulants are added to cause the suspended particles in the wastewater to aggregate and form flocs, thereby accelerating particle aggregation and achieving solid-liquid separation. The wastewater then flows through the water distribution zone and into the sedimentation and clarification zone. The upper part of the sedimentation and clarification zone is an inclined plate zone, and the lower part is a sludge hopper. The inclined plate zone reduces the size of the settler and improves sedimentation efficiency. The sediment remains in the sludge hopper, and the water is discharged through the outlet zone. This utility model has the advantages of small footprint and good clarification effect.

[0017] II. The integrated high-efficiency clarification equipment provided by this utility model separates tiny suspended solids and sand particles by tangentially aligning the axis of the inlet pipe with the inner wall of the circular pool. Due to the different centrifugal forces they experience, the sand particles with higher relative density are thrown toward the pool wall and sink to the lower end of the swirling sedimentation zone under the action of gravity. The time for sludge discharge can be automatically set by an electric valve.

[0018] III. The integrated high-efficiency clarification equipment provided by this utility model is equipped with a stirring device in the reaction flocculation zone. The pH value of the wastewater is adjusted by adding acid to meet the effluent requirements (the effluent requirements are a pH value of 6~9, and the pH value in the reaction flocculation zone is monitored in real time by a pH meter). Then, flocculants and coagulants are added to make the suspended particles in the wastewater aggregate and become larger or form flocs, thereby accelerating the sedimentation of particles and achieving the purpose of solid-liquid separation.

[0019] IV. The integrated high-efficiency clarification equipment provided by this utility model allows sludge from multiple sludge hoppers to be discharged into the sludge tank by gravity through the second sludge discharge pipe.

[0020] V. The integrated high-efficiency clarification device provided by this utility model has a sawtooth design that can increase the pressure of the water head. Due to the specific structure of the sawtooth, the water flow will form a backflow vortex when it flows through. The interaction between this vortex and the mainstream will generate additional pressure and energy, thereby increasing the pressure of the water head. This increase in pressure helps to better control the water flow and ensure that the outlet weir plate can play its role more effectively. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 Sectional view at point AA; The components are: 1. Swirl sedimentation zone; 2. Reaction flocculation zone; 3. Water distribution zone; 4. Sedimentation and clarification zone; 41. Inclined plate zone; 42. Packing material; 43. Sludge hopper; 5. Water outlet zone; 6. Water inlet pipe; 7. First sludge pipe; 8. Agitator; 9. Second sludge pipe; 10. Weir plate. Detailed Implementation The present invention will be further described in detail below with reference to the embodiments, but the implementation of the present invention is not limited thereto.

[0022] Example 1 like Figure 1 and Figure 2As shown, the integrated high-efficiency clarification equipment includes a vortex grit settling zone 1, a reaction flocculation zone 2, a water distribution zone 3, a sedimentation and clarification zone 4, and an outlet zone 5. The vortex grit settling zone 1 is equipped with an inlet pipe 6. The vortex grit settling zone 1 is connected to the reaction flocculation zone 2. The reaction flocculation zone 2 is connected to the water distribution zone 3. The water distribution zone 3 is connected to the sedimentation and clarification zone 4. The upper end of the sedimentation and clarification zone 4 is an inclined plate zone 41, and the inclined plate zone 41 is equipped with packing material 42. The lower end of the sedimentation and clarification zone 4 is a sludge hopper 43. The upper end of the inclined plate zone 41 is connected to the outlet zone 5.

[0023] Example 2 like Figure 1 and Figure 2 As shown, the integrated high-efficiency clarification equipment includes a vortex grit settling zone 1, a reaction flocculation zone 2, a water distribution zone 3, a sedimentation and clarification zone 4, and an outlet zone 5. The vortex grit settling zone 1 is equipped with an inlet pipe 6. The vortex grit settling zone 1 is connected to the reaction flocculation zone 2. The reaction flocculation zone 2 is connected to the water distribution zone 3. The water distribution zone 3 is connected to the sedimentation and clarification zone 4. The upper end of the sedimentation and clarification zone 4 is an inclined plate zone 41, and the inclined plate zone 41 is equipped with packing material 42. The lower end of the sedimentation and clarification zone 4 is a sludge hopper 43. The upper end of the inclined plate zone 41 is connected to the outlet zone 5.

[0024] The vortex sedimentation zone 1 is a circular pool.

[0025] The axis of the water inlet pipe 6 is tangent to the inner wall of the circular pool.

[0026] The vortex settling zone 1 is equipped with a first sludge discharge pipe 7 at its lower end, and a first sludge discharge valve is installed on the first sludge discharge pipe 7. The first sludge discharge valve is an electric valve; the first sludge discharge pipe 7 is connected to the sludge tank.

[0027] A stirring device 8 is provided in the reaction flocculation zone 2.

[0028] A pH meter is installed in the reaction flocculation zone 2.

[0029] Multiple mud buckets 43 are provided.

[0030] The sludge hopper 43 is equipped with a second sludge discharge pipe 9 at its lower end, and a second sludge discharge valve is installed on the second sludge discharge pipe 9. The second sludge discharge valve is an electric valve; the second sludge discharge pipe 9 is connected to the sludge tank.

[0031] A weir plate 10 is provided in the water outlet area 5.

[0032] The water weir plate 10 is a triangular sawtooth weir plate.

[0033] The first mud discharge valve, the stirring device 8, the pH meter, the second mud discharge valve, and the triangular sawtooth weir plate are all existing technologies and will not be described in detail here.

[0034] Compared with the prior art, this utility model has the following advantages and beneficial effects: I. The integrated high-efficiency clarification equipment provided by this utility model allows wastewater to enter the vortex settling zone 1 through the inlet pipe 6. During this process, tiny suspended solids and sand particles are separated, with the sand settling at the lower end of the vortex settling zone 1. The settled wastewater then flows into the reaction flocculation zone 2, where flocculants and coagulants are added to cause the suspended particles in the wastewater to aggregate and form flocs, thereby accelerating particle aggregation and achieving solid-liquid separation. The wastewater then flows through the distribution zone 3 and into the sedimentation and clarification zone 4. The upper part of the sedimentation and clarification zone 4 is an inclined plate zone 41, and the lower part is a sludge hopper 43. The inclined plate zone 41 reduces the size of the settler and improves sedimentation efficiency. The sediment remains in the sludge hopper 43, and the water is discharged through the outlet zone 5. This utility model has advantages such as small footprint and good clarification effect.

[0035] II. The integrated high-efficiency clarification equipment provided by this utility model has an inlet pipe 6 whose axis is tangential to the inner wall of the circular pool, which separates the tiny suspended solids and sand particles. Due to the different centrifugal forces, the sand particles with higher relative density are thrown towards the pool wall and sink into the lower end of the vortex sedimentation zone 1 under the action of gravity. The time for sludge discharge can be automatically set by an electric valve.

[0036] III. The integrated high-efficiency clarification equipment provided by this utility model is equipped with a stirring device 8 in the reaction flocculation zone 2. The pH value of the wastewater is adjusted by adding acid to meet the effluent requirements (the effluent requirements are a pH value of 6~9, and the pH value in the reaction flocculation zone 2 is monitored in real time by a pH meter). Then, flocculants and coagulants are added to make the suspended particles in the wastewater aggregate and become larger or form flocs, thereby accelerating the sedimentation of particles and achieving the purpose of solid-liquid separation.

[0037] IV. The integrated high-efficiency clarification equipment provided by this utility model allows 43 types of sludge from multiple sludge buckets to be discharged into the sludge tank by gravity through the second sludge discharge pipe 9.

[0038] V. The integrated high-efficiency clarification device provided by this utility model has a sawtooth design that can increase the pressure of the water head. Due to the specific structure of the sawtooth, the water flow will form a backflow vortex when it flows through. The interaction between this vortex and the mainstream will generate additional pressure and energy, thereby increasing the pressure of the water head. This increase in pressure helps to better control the water flow and ensure that the outlet weir plate 10 can play its role more effectively.

[0039] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. An integrated, high-efficiency clarification device, characterized in that: It includes a vortex sedimentation zone (1), a reaction flocculation zone (2), a water distribution zone (3), a sedimentation and clarification zone (4), and an outlet zone (5). The vortex sedimentation zone (1) is equipped with an inlet pipe (6). The vortex sedimentation zone (1) is connected to the reaction flocculation zone (2). The reaction flocculation zone (2) is connected to the water distribution zone (3). The water distribution zone (3) is connected to the sedimentation and clarification zone (4). The upper end of the sedimentation and clarification zone (4) is an inclined plate zone (41). The inclined plate zone (41) is equipped with packing material (42). The lower end of the sedimentation and clarification zone (4) is a mud hopper (43). The upper end of the inclined plate zone (41) is connected to the outlet zone (5).

2. The integrated high-efficiency clarification equipment according to claim 1, characterized in that: The swirling sedimentation zone (1) is a circular pool.

3. The integrated high-efficiency clarification equipment according to claim 2, characterized in that: The axis of the water inlet pipe (6) is tangent to the inner wall of the circular pool.

4. The integrated high-efficiency clarification equipment according to claim 1, characterized in that: The lower end of the swirling sedimentation zone (1) is provided with a first mud discharge pipe (7), and a first mud discharge valve is provided on the first mud discharge pipe (7).

5. The integrated high-efficiency clarification equipment according to claim 1, characterized in that: A stirring device (8) is provided in the reaction flocculation zone (2).

6. The integrated high-efficiency clarification equipment according to claim 1, characterized in that: A pH meter is installed in the reaction flocculation zone (2).

7. The integrated high-efficiency clarification equipment according to claim 1, characterized in that: Multiple mud buckets (43) are provided.

8. The integrated high-efficiency clarification equipment according to claim 1, characterized in that: The lower end of the mud hopper (43) is provided with a second mud pipe (9), and a second mud valve is provided on the second mud pipe (9).

9. The integrated high-efficiency clarification equipment according to claim 1, characterized in that: A weir plate (10) is installed in the water outlet area (5).

10. The integrated high-efficiency clarification equipment according to claim 9, characterized in that: The water weir plate (10) is a triangular sawtooth weir plate.

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