CN214192645U - Combined integrated efficient flocculation precipitation air floatation tank - Google Patents
Combined integrated efficient flocculation precipitation air floatation tank Download PDFInfo
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- CN214192645U CN214192645U CN202022401701.XU CN202022401701U CN214192645U CN 214192645 U CN214192645 U CN 214192645U CN 202022401701 U CN202022401701 U CN 202022401701U CN 214192645 U CN214192645 U CN 214192645U
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Abstract
The utility model discloses a high-efficient flocculation and precipitation air supporting pond of combination integral type, include according to rivers direction zonulae occludens's flocculation basin, sedimentation tank and air supporting pond in proper order, the flocculation basin with between the sedimentation tank with all communicate through the perforation flower wall between the air supporting pond, be equipped with air supporting pond outlet pipe in the air supporting pond, with what the water outlet end of air supporting pond outlet pipe communicates is out the weir. The utility model provides a pair of high-efficient flocculation and precipitation air supporting pond of combination integral type is in the same place flocculation basin, sedimentation tank and air supporting pond zonulae occludens, has removed connecting tube and road and greenbelt between each cell body from, has reduced the area of whole water treatment facility greatly, has reduced the engineering investment, has advantages such as treatment effect is high-efficient.
Description
Technical Field
The utility model relates to a feedwater treatment technical field, in particular to high-efficient flocculation and precipitation air supporting pond of combination formula.
Background
Urban water supply is an important infrastructure for urban construction and social economic development and is an indispensable material condition for enterprise production and people's life. It is closely related to the development of social economy, population growth and the like, and if the water supply is insufficient, the development of society and economy is restricted, the development of cities is hindered, and the life of people is seriously influenced. However, with the great advance of the urbanization process and the rapid increase of economy, land resources become main important factors restricting the urban development, and the land for municipal facilities is correspondingly limited; meanwhile, the comprehensive enforcement of sanitary standards for drinking water (GB5749-2006) also puts higher requirements on the water supply treatment technology. Therefore, it is necessary to design a water treatment process which can save floor space and has high efficiency.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a high-efficient flocculation and precipitation air supporting pond of combination formula just lies in providing, with flocculation basin, sedimentation tank and air supporting pond zonulae occludens together, has removed connecting tube and road and greenbelt between each cell body from, has reduced the area of whole water treatment facility greatly, has reduced the engineering investment, has characteristics such as treatment effect high efficiency.
In order to achieve the technical purpose, the utility model adopts the following technical scheme:
the utility model provides a high-efficient flocculation and precipitation air supporting pond of combination integral type, includes according to rivers direction zonulae occludens in proper order flocculation basin, sedimentation tank and air supporting pond, the flocculation basin with between the sedimentation tank with all communicate through the perforation flower wall between the air supporting pond, be equipped with air supporting pond outlet pipe in the air supporting pond, with what the play water end of air supporting pond outlet pipe communicates is out the weir.
In the technical scheme, the flocculation tank is a folded plate flocculation tank which adopts a vertical flow folded plate and is divided into three sections of flocculation, namely a first section of flocculation, a second section of flocculation and a third section of flocculation, wherein stainless steel opposite folded plates are arranged in the first section of flocculation and the second section of flocculation, a stainless steel straight plate is arranged in the third section of flocculation, and the flow rates of the first section of flocculation, the second section of flocculation and the third section of flocculation are sequentially reduced; the bottom of the flocculation tank is also provided with a first perforated sludge discharge pipe, and the first perforated sludge discharge pipe is provided with a sludge discharge valve.
In the technical scheme, the sedimentation tank is a lateral flow A-type inclined plate sedimentation tank, a plurality of groups of A-type inclined plates are distributed in the lateral flow A-type inclined plate sedimentation tank, an underwater mud scraper is arranged below the plurality of groups of A-type inclined plates, and an automatic flushing device is arranged among the plurality of groups of A-type inclined plates; and a sludge discharge pipe is arranged below the underwater mud scraper in the sedimentation tank, and a sludge discharge valve is arranged on the sludge discharge pipe.
Preferably, the automatic flushing device is washed by water, gas or air-water mixture, and comprises a flushing pipeline, and an automatic valve, a control pump and a metering regulating valve which are arranged on the flushing pipeline.
In the technical scheme, an air dissolving device, an aerating device and a mud scraper are arranged in the air floatation tank, the inlet end of the aerating device is connected with the outlet end of the air dissolving device, and the mud scraper is arranged below the air dissolving device; and a second perforated sludge discharge pipe is arranged at the bottom of the air floatation tank, and a sludge discharge valve is arranged on the second perforated sludge discharge pipe.
The utility model provides a pair of high-efficient flocculation and precipitation air supporting pond of combination integral type is flowed A type inclined plate sedimentation tank and air supporting pond by folded plate flocculation basin, side direction and is adopted combination integral type to arrange, compares with prior art, has following several beneficial effect:
1. the process device adopts combined integral arrangement, has compact arrangement and small occupied area, simultaneously reduces the pipeline connection between the tanks, reduces the head loss, saves the operation cost, greatly saves the occupied area and saves the engineering investment;
2. the flocculation tank of the process device adopts a folded plate flocculation tank, and has the characteristics of short flocculation time, good flocculation effect and the like; the side flow A-type inclined plate sedimentation tank realizes that water flows along the horizontal direction, and sedimentation falls along the vertical direction, so that mutual interference between a water path and a mud path is avoided, the mud-water separation efficiency is greatly improved, and meanwhile, an automatic cleaning device is arranged in a matched manner, so that the sedimentation efficiency is improved, and the labor intensity of personnel is reduced; the air floatation tank enables a large amount of micro bubbles to be generated in water, air is attached to suspended particles in a highly dispersed micro bubble mode to cause the state that the density is less than that of the water, and the air floats on the water surface by utilizing the buoyancy principle, so that solid-liquid separation is realized, and the air floatation process has good removal effect on algae and turbidity;
3. the turbidity of the effluent of the process can be stabilized below 1NTU, and the treatment effect is very good;
4. the process is suitable for water supply treatment of rivers, lakes and reservoirs, is suitable for large, medium and small water plants, and has the characteristic of wide application range.
Drawings
Fig. 1 is a cross-sectional view of the overall process layout of the present invention.
Fig. 2 is a plan view of the overall process layout of the present invention.
Fig. 3 is a sectional view of the folded plate flocculation tank in the combined tank of the utility model.
Fig. 4 is a sectional view of the side flow a-type inclined plate sedimentation tank in the combined tank of the utility model.
Fig. 5 is a schematic diagram of the operation principle of the a-type swash plate in fig. 4.
Fig. 6 is a sectional view of the air floating tank in the combined tank of the present invention.
Shown in the figure:
1-a flocculation tank, 2-a sedimentation tank, 3-an air flotation tank, 4-a perforated wall, 5-an air flotation tank water outlet pipe, 6-an effluent weir, 7-a first perforated sludge discharge pipe, 8-a sludge discharge valve, 9-an underwater mud scraper, 10-an automatic flushing device, 11-a sludge discharge pipe, 12-an air dissolving device, 13-an aeration device, 14-a mud scraper and 15-a second perforated sludge discharge pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-2, this embodiment provides a combined integrated efficient flocculation and sedimentation air-flotation tank, including flocculation tank 1, sedimentation tank 2 and air-flotation tank 3 which are closely connected in sequence according to the water flow direction, flocculation tank 1 with between sedimentation tank 2, sedimentation tank 2 with between the air-flotation tank 3 all communicate through perforation flower wall 4, flocculation tank 1 is connected with raw water inlet tube, be equipped with air-flotation tank outlet pipe 5 in the air-flotation tank 3, with what the play water end of air-flotation tank outlet pipe 5 communicates is play weir 6, through going out weir 6 with the rivers after handling next-stage processing unit.
Specifically, as shown in fig. 3, the flocculation tank 1 is a folded plate flocculation tank, and from the viewpoint of research on the dynamic cause of flocculation and from the viewpoint of dynamic influence of turbulent microscale on coagulation, it is proposed that the inertial effect is the dynamic cause of flocculation, the turbulent shear force is a decisive dynamic factor in flocculation reaction, and coagulation of alum particles in water is caused by small vortex motion; in order to improve the efficiency of coagulation reaction, the proportion of small vortexes in turbulent flow is increased from the viewpoint of dynamics, and according to the theory, the structure of a straight line section of the clapboard flocculation tank is changed to enable water flow to generate turbulent motion effect beneficial to the growth of flocs, so that the aim of improving the flocculation efficiency can be achieved. Therefore, the flocculation tank 1 in this embodiment is a folded plate flocculation tank, which is developed on the basis of a partition plate flocculation tank, and the tank type is that some turbulence units are additionally arranged in the tank to achieve a turbulence state required by flocculation, so that energy loss is fully utilized. The folded plate flocculation tank can be arranged into a vertical flow type or a horizontal flow type, has the characteristics of short flocculation time, good flocculation effect and the like, and can achieve the purpose of improving the flocculation efficiency.
Further, in the embodiment, the designed retention time of the folded plate flocculation tank 1 is 20 minutes to 25 minutes, a vertical flow folded plate is adopted, three sections of flocculation are divided into a first section of flocculation, a second section of flocculation and a third section of flocculation, the first section of flocculation adopts a stainless steel relative folded plate, the designed flow rate is about 0.3m/s, the second section of flocculation adopts a stainless steel relative folded plate, the designed flow rate is about 0.2m/s, the third section of flocculation adopts a stainless steel straight plate, the designed flow rate is about 0.12m/s, a first perforated sludge discharge pipe 7 is arranged at the bottom of the flocculation tank 1, a sludge discharge valve 8 is arranged on the first perforated sludge discharge pipe 7, and silt in the tank is periodically discharged.
Specifically, as shown in FIGS. 4 to 5, the sedimentation tank 2 is a side flow A-type inclined plate sedimentation tank, and the sedimentation velocity of the particles is designed to be about 0.16 mm/s. The horizontal flow velocity is 5-10 mm/s, the effective water depth is 3m, the particle settling time is 6-10 min, water is distributed by the perforated tracery wall 4 when water is fed, uniform water feeding in each inclined plate area can be ensured, water is discharged by the perforated tracery wall 4 when water is discharged, a water collecting tank is not arranged, the water quality of the discharged water can be ensured, and the engineering investment is saved. A plurality of groups of A-shaped inclined plates are distributed in the side flow A-shaped inclined plate sedimentation tank, an automatic flushing device 10 is arranged among the A-shaped inclined plates, the automatic flushing device 10 is used for water washing, gas washing or gas-water mixed cleaning, the automatic flushing device 10 comprises a flushing pipeline, and an automatic valve, a control pump and a metering regulating valve which are arranged on the flushing pipeline, and can automatically flush the inclined plates according to water quality, water quantity and time, so that the water outlet effect of the sedimentation tank is ensured; the underwater mud scraper 9 is arranged below the A-shaped sloping plates, a mud discharge pipe 11 is arranged below the underwater mud scraper 9 in the sedimentation tank 2, a mud discharge valve 8 is arranged on the mud discharge pipe 11, and mud settled in the sedimentation tank is periodically discharged.
Further, as shown in fig. 5, in the lateral flow a-type inclined plate sedimentation tank 1 of the present embodiment, a plurality of groups of a-type inclined plates are arranged, an angle α of each a-type inclined plate is 60 °, and an arrangement distance between two adjacent a-type inclined plates is h0The opening length of each A-shaped sloping plate is b1, the arrangement distance between two adjacent groups of A-shaped sloping plates is b2,the settled mud slides downwards through two inclined edges of the A-shaped inclined plate (see B in figure 5), and the water flow direction is shown as A in figure 5; flows into the bottom of the tank through the space b2 between the two groups of A-shaped inclined plates, and then is discharged through the underwater mud scraper 9, the mud discharge pipe 11 and the mud discharge valve 8.
The technological principle of the lateral flow A-type inclined plate sedimentation tank is as follows:
the side flow A-type inclined plate sedimentation tank utilizes the theory of a shallow sedimentation tank to fully exert the advantages of a horizontal flow sedimentation tank, adopts the tank type of the original upward flow inclined plate sedimentation process, changes the arrangement of the open pores of the water inlet rectification wall, changes the upward flow sedimentation process into the side flow propulsion process sedimentation, namely avoids the defect that the falling of the sediment is influenced by the fact that the water flow in the upward flow inclined tube sedimentation supports the sediment particles, also avoids the possibility that the lower inclined plate of the early side flow inclined plate sedimentation tank collapses due to the sediment accumulation, and the independent sediment channel enables the descending process of the sediment particles to be more smooth. The lateral flow inclined plate sedimentation tank has high efficiency and small occupied space, and the vacant part at the rear end is used as a water outlet stable area of the sedimentation tank, so that the uniform distribution of water flow of the sedimentation tank through the inclined plate can be ensured, the water outlet speed flow field of the sedimentation tank is ensured not to interfere the water passing uniformity of the inclined plate, and the inclined plate sedimentation tends to be in an ideal state of a shallow tank sedimentation theory. The main advantages and disadvantages are as follows: the water flow flows along the horizontal direction, the settled mud descends along the vertical direction, the mutual interference between a water path and a mud path is avoided, and the mud-water separation efficiency is greatly improved. In addition, a micro-disturbance structure is arranged in the plate A, and flocculation is properly enhanced, so that residual fine suspended particles are further coagulated, particle loss is reduced, and the defects of large occupied area of a horizontal flow sedimentation tank and poor sedimentation effect of an inclined tube sedimentation tank are well overcome.
Specifically, as shown in fig. 6, the designed retention time of the air flotation tank 3 is about 20 minutes, an air dissolving device 12, an aeration device 13 and a mud scraper 14 are arranged in the air flotation tank 3 in a matching manner, the inlet end of the aeration device 13 is connected with the outlet end of the air dissolving device 12, the mud scraper 14 is arranged below the air dissolving device 12, a second perforated mud discharge pipe 15 is arranged at the bottom of the air flotation tank 3, and a mud discharge valve 8 is arranged on the second perforated mud discharge pipe 15 to discharge settled mud at regular intervals. Furthermore, the air floatation process mainly comprises the steps of dissolving and super-saturating the gas, and finally releasing the gas into an air floatation tank to achieve the air floatation effect. A large amount of micro bubbles are generated in water, so that air is attached to suspended particles in a highly dispersed micro bubble form to cause the state that the density is lower than that of the water, and the air floats on the water surface by utilizing the buoyancy principle, thereby realizing solid-liquid separation, and the air floatation process has good removal effect on algae and turbidity.
In conclusion, the combined efficient flocculation precipitation air floatation tank provided by the embodiment adopts the combined arrangement of the folded plate flocculation tank, the lateral flow A-shaped inclined plate sedimentation tank and the air floatation tank, so that the pipeline connection between the tanks is reduced, the head loss is reduced, and the operation cost is saved; meanwhile, the occupied area is greatly saved, and the engineering investment is saved.
The parts not described in the specification are prior art or common general knowledge. The present embodiment is only used for illustrating the present invention, and is not used to limit the scope of the present invention, and modifications such as equivalent replacement made by those skilled in the art to the present invention are all considered to fall within the protection scope of the claims of the present invention.
Claims (8)
1. The utility model provides a high-efficient flocculation and precipitation air supporting pond of combination style which characterized in that: including according to rivers direction in proper order zonulae occludens's flocculation basin (1), sedimentation tank (2) and air supporting pond (3), flocculation basin (1) with between sedimentation tank (2) with all communicate through perforation tracery wall (4) between air supporting pond (3), be equipped with air supporting pond outlet pipe (5) in air supporting pond (3), with what the play water end of air supporting pond outlet pipe (5) communicates is play weir (6).
2. The combined integrated efficient flocculation and precipitation air flotation tank as claimed in claim 1, is characterized in that: the flocculation tank (1) is a folded plate flocculation tank which adopts a vertical flow folded plate and is divided into three sections of flocculation, namely a first section of flocculation, a second section of flocculation and a third section of flocculation, wherein stainless steel opposite folded plates are arranged in the first section of flocculation and the second section of flocculation, a stainless steel straight plate is arranged in the third section of flocculation, and the flow rates of the first section of flocculation, the second section of flocculation and the third section of flocculation are sequentially reduced.
3. The combined type efficient flocculation and precipitation air flotation tank as claimed in claim 2, is characterized in that: the bottom of the flocculation tank (1) is provided with a first perforated sludge discharge pipe (7), and the first perforated sludge discharge pipe (7) is provided with a sludge discharge valve (8).
4. The combined integrated efficient flocculation and precipitation air flotation tank as claimed in claim 1, is characterized in that: the sedimentation tank (2) is a side flow A-type inclined plate sedimentation tank, a plurality of groups of A-type inclined plates are arranged in the side flow A-type inclined plate sedimentation tank, an underwater mud scraper (9) is arranged below the A-type inclined plates, and an automatic flushing device (10) is arranged among the A-type inclined plates.
5. The combined type efficient flocculation and precipitation air flotation tank as claimed in claim 4, wherein: the automatic flushing device (10) is used for water washing, gas washing or air-water mixed washing, and the automatic flushing device (10) comprises a flushing pipeline, and an automatic valve, a control pump and a metering regulating valve which are arranged on the flushing pipeline.
6. The combined type efficient flocculation and precipitation air flotation tank as claimed in claim 4, wherein: a sludge discharge pipe (11) is arranged below the underwater mud scraper (9) in the sedimentation tank (2), and a sludge discharge valve (8) is arranged on the sludge discharge pipe (11).
7. The combined integrated efficient flocculation and precipitation air flotation tank as claimed in claim 1, is characterized in that: an air dissolving device (12), an aeration device (13) and a mud scraper (14) are arranged in the air flotation tank (3), the inlet end of the aeration device (13) is connected with the outlet end of the air dissolving device (12), and the mud scraper (14) is arranged below the air dissolving device (12).
8. The combined type efficient flocculation and precipitation air flotation tank as claimed in claim 7, wherein: and a second perforated sludge discharge pipe (15) is arranged at the bottom of the air floatation tank (3), and a sludge discharge valve (8) is arranged on the second perforated sludge discharge pipe (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022401701.XU CN214192645U (en) | 2020-10-26 | 2020-10-26 | Combined integrated efficient flocculation precipitation air floatation tank |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022401701.XU CN214192645U (en) | 2020-10-26 | 2020-10-26 | Combined integrated efficient flocculation precipitation air floatation tank |
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| Publication Number | Publication Date |
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| CN214192645U true CN214192645U (en) | 2021-09-14 |
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| CN202022401701.XU Active CN214192645U (en) | 2020-10-26 | 2020-10-26 | Combined integrated efficient flocculation precipitation air floatation tank |
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- 2020-10-26 CN CN202022401701.XU patent/CN214192645U/en active Active
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