CN218931804U - A high density sedimentation tank for high hardness waste water - Google Patents
A high density sedimentation tank for high hardness waste water Download PDFInfo
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- CN218931804U CN218931804U CN202221321563.7U CN202221321563U CN218931804U CN 218931804 U CN218931804 U CN 218931804U CN 202221321563 U CN202221321563 U CN 202221321563U CN 218931804 U CN218931804 U CN 218931804U
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Abstract
The utility model provides a high-density sedimentation tank for high-hardness wastewater, which comprises a first reaction tank, a second reaction tank, a coagulation tank, a flocculation tank and an inclined plate sedimentation concentration tank, wherein the inner side of the first reaction tank is provided with a water inlet pipe, the first reaction tank is connected with the second reaction tank through a hole at the bottom of the tank, the second reaction tank overflows into the coagulation tank through the top, the coagulation tank is connected with the flocculation tank through a water distribution channel at the bottom, the flocculation tank is communicated with the inclined plate sedimentation concentration tank through a diversion trench at the lower part, and the flocculation tank overflows into the inclined plate sedimentation concentration tank after being lifted by a flocculation tank stirrer. According to the utility model, the coagulation tank and the flocculation tank are separately arranged, the guide cylinder is arranged in the coagulation tank, and the slow stirring lifting stirrer is independently arranged in the flocculation tank, so that the problems of sludge accumulation and scaling generated in the process of removing hardness from high-hardness wastewater can be solved, and the method has the advantages of high surface load, high sludge concentration, good effluent quality, strong shock resistance and the like.
Description
Technical Field
The utility model relates to the technical field of sewage treatment, in particular to a high-density sedimentation tank for high-hardness wastewater.
Background
In the process of removing hardness for treating high-hardness wastewater, the traditional high-density pool sedimentation tank is extremely easy to produce sedimentation in the process of flowing to the inclined plate sedimentation in a coagulation/flocculation area due to large amount of sludge, and generates scaling to block a channel, and thorough descaling and dredging are required to be carried out after stopping every 3-6 months, so that the system cannot continuously run.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides the high-density sedimentation tank for the high-hardness wastewater, which has the advantages of high hardness removal efficiency, no sludge sedimentation and scaling, remarkable coagulation flocculation effect, high sedimentation efficiency, good effluent quality, simple structure, high efficiency, economy and small occupied area.
The technical scheme of the utility model is as follows: a high-density sedimentation tank for high-hardness wastewater comprises a first reaction tank, a second reaction tank, a coagulation tank, a flocculation tank and an inclined plate sedimentation concentration tank, wherein the first reaction tank and the second reaction tank are arranged side by side; the first reaction tank inboard be provided with the inlet tube to first reaction tank pass through the hole at bottom of the pool and be connected with the second reaction tank, the second reaction tank pass through the top overflow and get into the coagulation tank, the coagulation tank with flocculation tank pass through the water distribution channel connection of bottom, flocculation tank and inclined plate sedimentation concentration tank pass through the guiding gutter intercommunication of lower part, just the flocculation tank promote the back overflow through the flocculation tank mixer and get into inclined plate sedimentation concentration tank.
Preferably, a lime or caustic soda dosing pipeline is arranged in the first reaction tank.
Preferably, a sodium carbonate dosing pipeline is arranged in the second reaction tank.
Preferably, the first reaction tank and the second reaction tank are respectively provided with a corresponding reaction tank stirrer.
Preferably, the coagulation tank is internally provided with a coagulant dosing pipe and a guide cylinder, two sides of the guide cylinder are provided with corresponding partition plates, the coagulation tank is divided into two parts by the partition plates, the bottoms of the partition plates are provided with communication holes, and the bottoms of the guide cylinders are provided with buffering gentle sections.
Preferably, the coagulation tank is also internally provided with a coagulation tank stirrer, a stirring paddle of the coagulation tank stirrer stretches into a central cylinder of the coagulation tank, and the coagulant dosing pipe is positioned below the coagulation tank stirrer.
Preferably, a flocculating agent dosing pipe and a flocculating tank stirrer are arranged in the flocculating tank, and the flocculating agent dosing pipe is positioned below the flocculating stirrer.
Preferably, the coagulant dosing pipes and the flocculant dosing pipes are annular dosing pipes.
Preferably, the upper part of the inclined plate sedimentation and concentration tank is provided with an inclined plate, the bottom of the inclined plate sedimentation and concentration tank is provided with a concentration stirring mud scraper and a mud bucket, and the mud bucket is externally connected to a mud dewatering room through a mud discharge pump and is communicated to the bottom of the coagulation tank through a mud reflux pump; the water collecting tank at the upper end of the inclined plate sedimentation concentration tank is externally connected with a water outlet pipe.
Preferably, the inclined plate sedimentation concentration tank is divided into a pre-sedimentation area and an inclined tube sedimentation area by a partition plate.
The beneficial effects of the utility model are as follows:
1. according to the utility model, the coagulation tank and the flocculation tank are separately arranged, the guide cylinder is arranged in the coagulation tank, and the slow stirring lifting stirrer is independently arranged in the flocculation tank, so that the problems of sludge accumulation and scaling generated in the process of removing hardness of high-hardness wastewater can be solved, and the method has the advantages of high surface load, high sludge concentration, good effluent quality, strong shock resistance and the like;
2. the sedimentation tank has the advantages of high hardness removal efficiency, no sludge sedimentation and scaling, remarkable coagulation flocculation effect, high sedimentation efficiency, good effluent quality, simple structure, high efficiency, economy and small occupied area.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic cross-sectional view of the present utility model;
FIG. 3 is a schematic structural view of a reaction tank according to the present utility model;
FIG. 4 is a schematic view of a guide shell according to the present utility model;
in the figure, a first reaction tank, a second reaction tank, a 3-coagulation tank, a 4-flocculation tank and a 5-inclined plate sedimentation concentration tank are arranged in the figure;
6-reaction tank stirrer, 7-coagulation tank stirrer, 8-central cylinder, 9-guide cylinder, 10-flocculation tank stirrer, 11-concentration stirring mud scraper, 12-inclined plate, 13-mud bucket and 14-water collecting tank; 15-a pre-sedimentation zone, 16-an inclined tube sedimentation zone, 17-a partition plate and 18-a partition plate.
Detailed Description
The following is a further description of embodiments of the utility model, taken in conjunction with the accompanying drawings:
as shown in fig. 1-3, the embodiment provides a high-density sedimentation tank for high-hardness wastewater, which comprises a first reaction tank 1, a second reaction tank 2, a coagulation tank 3, a flocculation tank 4 and an inclined plate sedimentation concentration tank 5, wherein the first reaction tank 1 and the second reaction tank 2 are arranged side by side; the first reaction tank 1 inboard be provided with the inlet tube to first reaction tank 1 pass through the hole at bottom of the pool and be connected with second reaction tank 2, second reaction tank 2 pass through top overflow and get into coagulating basin 3, coagulating basin 3 with flocculation basin 4 pass through the water distribution channel of bottom and be connected, flocculation basin 4 and swash plate sedimentation concentration tank 5 pass through the guiding gutter intercommunication of lower part, just flocculation basin 4 promote the back overflow through flocculation basin mixer 10 and get into swash plate sedimentation concentration tank 5.
In this embodiment, the first reaction tank 1, the second reaction tank 2 and the coagulation tank 3 have square structures, and the flocculation tank 4 has rectangular structures.
As a preferred embodiment, a lime or caustic soda dosing pipeline is arranged in the first reaction tank 1.
As a preferable example, a sodium carbonate dosing pipeline is arranged in the second reaction tank 2.
As a preferred embodiment, the first reaction tank 1 and the second reaction tank 2 are respectively provided with a corresponding reaction tank stirrer 6.
As the preferred embodiment, the coagulation tank 3 is provided with a coagulant adding pipe and a guide cylinder 9, as shown in FIG. 4, two sides of the guide cylinder 9 are provided with corresponding partition plates 17, the coagulation tank 3 is divided into two parts by the partition plates 17, the bottom of the partition plates 17 is provided with a communication hole, and the bottom of the guide cylinder 9 is provided with a buffering gentle section.
As the preferred embodiment, the coagulation tank 3 is also internally provided with a coagulation tank stirrer 7, the stirring paddle of the coagulation tank stirrer 7 extends into the central cylinder 8 of the coagulation tank 3, and the coagulant dosing pipe is positioned below the coagulation tank stirrer 7.
As the preferred embodiment, a flocculating agent adding pipe and a flocculating tank stirrer 10 are arranged in the flocculating tank 4, and the flocculating agent adding pipe is positioned below the flocculating tank stirrer 10.
As the preferred embodiment, the coagulant dosing pipe and the flocculant dosing pipe are annular dosing pipes.
As the preferred embodiment, the inclined plate sedimentation and concentration tank 5 is provided with an inclined plate 12 at the upper part and a concentration stirring mud scraper 11 and a mud bucket 13 at the bottom, wherein the mud bucket 13 is externally connected to a sludge dewatering room through a sludge discharge pump and is communicated to the bottom of the coagulation tank 3 through a sludge reflux pump; the water collecting tank 14 at the upper end of the inclined plate sedimentation concentration tank 5 is externally connected with a water outlet pipe.
As a preferred embodiment, the inclined plate sedimentation concentration tank 5 is divided into a pre-sedimentation area 15 and an inclined tube sedimentation area 16 by a partition plate 18.
Working principle:
raw water enters the first reaction tank 1 through a water inlet pipe, a certain speed gradient is ensured under the stirring action of a reaction tank stirrer 6, the raw water is quickly mixed and reacted with a reagent added by a lime slurry or caustic soda dosing pipe, then enters the second reaction tank 2, is quickly mixed and reacted with a reagent added by a sodium carbonate dosing pipe, then enters the coagulation tank 3, is mixed with a coagulant added by a coagulant dosing pipe and sludge returned by an inclined plate sedimentation concentration tank 5 under the stirring action of multiple circulation rate of the coagulation tank stirrer 7, then enters a flocculation tank 4, suspended solids in water are sheared by the flocculation tank stirrer 10, large floccules which are easy to settle are formed again, then enters the inclined plate sedimentation concentration tank 5, floccules which are easy to settle in a pre-settling zone 15 are quickly settled, missed floccules which are easy to settle and micro floccules which are difficult to settle are captured by an inclined plate 12, and finally high-quality effluent is collected through a water collecting tank 14 and discharged to a lower-level structure.
The foregoing embodiments and description have been provided merely to illustrate the principles and best modes of carrying out the utility model, and various changes and modifications can be made therein without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (9)
1. A high density sedimentation tank for high hardness waste water, its characterized in that: the device comprises a first reaction tank (1), a second reaction tank (2), a coagulation tank (3), a flocculation tank (4) and an inclined plate sedimentation concentration tank (5), wherein the first reaction tank (1) and the second reaction tank (2) are arranged side by side;
the inner side of the first reaction tank (1) is provided with a water inlet pipe, the first reaction tank (1) is connected with the second reaction tank (2) through a hole at the bottom of the tank, the second reaction tank (2) overflows into a coagulation tank (3) through the top, the coagulation tank (3) is connected with a flocculation tank (4) through a water distribution channel at the bottom, the flocculation tank (4) is communicated with an inclined plate sedimentation concentration tank (5) through a diversion trench at the lower part, and the flocculation tank (4) overflows into the inclined plate sedimentation concentration tank (5) after being lifted by a flocculation tank stirrer (10);
the coagulation tank (3) in be equipped with coagulant charge pipe and draft tube (9), draft tube (9) both sides be equipped with corresponding baffle (17), through baffle (17) with coagulation tank (3) split into two parts, just baffle (17) bottom have set up the intercommunicating pore, draft tube (9) bottom be equipped with buffering mild section.
2. A high density sedimentation tank for high hardness wastewater as claimed in claim 1, wherein: the first reaction tank (1), the second reaction tank (2) and the coagulation tank (3) are square structures, and the flocculation tank (4) is rectangular.
3. A high-density sedimentation tank for high hardness wastewater as claimed in claim 2, wherein: the first reaction tank (1) is internally provided with a lime or caustic soda dosing pipeline, and the second reaction tank (2) is internally provided with a sodium carbonate dosing pipeline.
4. A high-density sedimentation tank for high hardness wastewater as claimed in claim 2, wherein: corresponding reaction tank mixers (6) are arranged in the first reaction tank (1) and the second reaction tank (2).
5. A high-density sedimentation tank for high hardness wastewater as claimed in claim 2, wherein: the coagulation tank (3) is internally provided with a coagulation tank stirrer (7), a stirring paddle of the coagulation tank stirrer (7) stretches into a central cylinder (8) of the coagulation tank (3), and a coagulant dosing pipe is positioned below the coagulation tank stirrer (7).
6. A high-density sedimentation tank for high hardness wastewater as claimed in claim 5, wherein: the flocculation tank (4) is internally provided with a flocculant dosing pipe and a flocculation tank stirrer (10), and the flocculant dosing pipe is positioned below the flocculation tank stirrer (10).
7. A high-density sedimentation tank for high hardness wastewater as claimed in claim 6, wherein: the coagulant dosing pipe and the flocculant dosing pipe are annular dosing pipes.
8. A high density sedimentation tank for high hardness wastewater as claimed in claim 1, wherein: the upper part of the inclined plate sedimentation concentration tank (5) is provided with an inclined plate (12), the bottom of the inclined plate sedimentation concentration tank is provided with a concentration stirring mud scraper (11) and a mud bucket (13), and the mud bucket (13) is externally connected to a mud dewatering room through a mud discharge pump and is communicated to the bottom of the coagulation tank (3) through a mud reflux pump;
the water collecting tank (14) at the upper end of the inclined plate sedimentation concentration tank (5) is externally connected with a water outlet pipe.
9. A high-density sedimentation tank for high hardness wastewater as claimed in claim 8, wherein: the inclined plate sedimentation concentration tank (5) is divided into a pre-sedimentation area (15) and an inclined tube sedimentation area (16) by a separation plate (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221321563.7U CN218931804U (en) | 2022-05-30 | 2022-05-30 | A high density sedimentation tank for high hardness waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221321563.7U CN218931804U (en) | 2022-05-30 | 2022-05-30 | A high density sedimentation tank for high hardness waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218931804U true CN218931804U (en) | 2023-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221321563.7U Active CN218931804U (en) | 2022-05-30 | 2022-05-30 | A high density sedimentation tank for high hardness waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218931804U (en) |
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2022
- 2022-05-30 CN CN202221321563.7U patent/CN218931804U/en active Active
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