CN114835219B - Vortex flocculation system based on impact impeller - Google Patents
Vortex flocculation system based on impact impeller Download PDFInfo
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- CN114835219B CN114835219B CN202210493306.XA CN202210493306A CN114835219B CN 114835219 B CN114835219 B CN 114835219B CN 202210493306 A CN202210493306 A CN 202210493306A CN 114835219 B CN114835219 B CN 114835219B
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- flocculation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a vortex flocculation system based on an impact impeller, which solves the problems of insufficient mechanical stirring and high maintenance cost in the prior art. The flocculation stirring device comprises a cross support plate which is arranged up and down, the two cross support plates are connected through a fixed rod, the cross support plate is connected with a grid plate through a connecting shaft, a single face of the cross support plate is provided with a hole, two ends of the grid plate are provided with a plurality of holes, one end of the connecting shaft is inserted into the hole of the cross support plate, and the other end of the connecting shaft is inserted into the hole of the grid plate; the water inlet system comprises an impact impeller, the impeller comprises blades, the blades are in threaded rotary connection with a central rotating shaft, the central rotating shaft is connected with a fixing rod, and the fixing rod is connected with an upper cross fixing plate in a bearing mode. The cross fixed plate is fixedly connected with the top of the flocculation tank body, and the fixed rod simultaneously passes through the two cross support plates.
Description
Technical field:
the invention belongs to the technical field of water treatment equipment, and relates to a vortex flocculation system based on an impact impeller.
The background technology is as follows:
in the field of water treatment, flocculation processes and equipment are important. At present, a flocculating agent is mainly added into a flocculating agent through a water inlet pipe at the upper part of a flocculating tank body, and the stirring mode is mainly to independently set stirring equipment for mechanical stirring, so that the conditions that the stirring is insufficient, the mechanical equipment works under water usually, the flocculating agent is easy to damage and the maintenance cost is high can exist;
the vortex flocculation can lead the flocculation particles to be affected by different speeds at two sides of the advancing direction, thereby increasing the radius of the flocculation body and improving the flocculation effect.
The invention comprises the following steps:
the invention aims to provide a vortex flocculation system based on an impact impeller, which solves the problems of insufficient mechanical stirring, easy damage and high maintenance cost in the prior art. The invention has the advantages of safety, reliability, good treatment effect, energy conservation, environmental protection and low cost.
In order to achieve the above purpose, the invention adopts the following technical scheme:
vortex flocculation system based on impact impeller, its characterized in that: the flocculation stirring device comprises a cross support plate which is arranged up and down, the two cross support plates are connected through a fixed rod, the cross support plate is connected with a grid plate through a connecting shaft, a single face of the cross support plate is provided with a hole, two ends of the grid plate are provided with a plurality of holes, one end of the connecting shaft is inserted into the hole of the cross support plate, and the other end of the connecting shaft is inserted into the hole of the grid plate; the water inlet system comprises an impact impeller, the impact impeller comprises blades, the blades are rotationally connected with a central rotating shaft through threads, the central rotating shaft is connected with a fixed rod, and the fixed rod is connected with an upper cross fixed plate in an embedded manner; the cross fixed plate is fixedly connected with the top of the flocculation tank body, and the fixed rod simultaneously passes through the two cross support plates. Every two grid plates are arranged in opposite directions, and water flows out through the holes among the grid plates when impacting the grid plates; the body of water first passes through the narrow opening and then through the flare.
The angle of the grid plate is adjusted within the range of 45-60 degrees.
The water inlet system comprises a water inlet pipe, and the water inlet of the water inlet pipe is tangential.
A sealing bearing is arranged in the central rotating shaft and is connected with the fixed rod.
The top of the flocculation tank is provided with a water outlet system, the water outlet system comprises a water outlet overflow weir, a water outlet overflow groove is arranged at the outer side of the water outlet overflow weir, and a water outlet pipe is arranged on the water outlet overflow groove.
The bottom of the flocculation tank is provided with a sludge discharge system, the sludge discharge system comprises a cone hopper, the cone hopper is connected with a sludge discharge pipe, the sludge discharge pipe is provided with a sludge discharge valve, and the inclination angle of the cone hopper is 45-60 degrees.
Compared with the prior art, the invention has the following advantages and effects:
1. the water inlet of the invention is provided with 6-8 tangential water inlet pipes. The water flow is rotated relative to the axis of the flocculation tank through the tangential water inlet pipe. Further, the water flow directly impacts the wall surface of the reactor to generate boundary layer separation, so as to achieve the effect of primarily mixing water and the medicament; further, the water flow entering from the different water inlet pipes pushes the impact impeller and drives the grid plate to rotate, so that turbulence is generated on the water flow. Further, when the water flow impacts the impeller, the water flow can change in flow state, so that the medicament is dispersed in the water body.
2. According to the invention, the grid plate with the adjustable angle is arranged in the stirring system, and the grid plate rotates to disturb the water body to form vortex, so that the probability of particle collision is increased, the size of floccule particles is increased, and the sedimentation of the particles is facilitated; in addition, the inclination angles of every two grid plates are opposite, so when water flows from a narrow opening to a flaring, boundary layer separation further occurs due to the change of the angle of the wall surface, thereby increasing the probability of collision and contact of particles, enabling micro flocculation particles to form larger and more compact flocs, and improving the flocculation effect and the treatment load of equipment.
3. Furthermore, the device discharges water from the overflow weir above, so that the upper liquid overflows uniformly, and the water discharge stability and water discharge quality are improved.
4. The device has the advantages of good treatment effect, compact structure, modularization, small occupied area, investment saving, no redundant mechanical equipment, quick installation, simple maintenance, repeated transition use and high automation degree, and is suitable for raw water with various types. When the raw water source and the equipment have a certain height difference, the potential energy of the raw water can be converted into the kinetic energy of the equipment, so that unpowered operation of the water treatment equipment is realized. .
Description of the drawings:
FIG. 1 is a block diagram of a flocculation agitation system.
FIG. 2 is a top view of a flocculation agitation system.
Fig. 3 is a block diagram of an impeller system.
Fig. 4 is a top view of the impeller system.
FIG. 5 is a block diagram of a flocculation tank and a water outlet system.
FIG. 6 is a top view of a flocculation tank and a water outlet system.
Fig. 7 is a structural view of the sludge discharging system.
Fig. 8 is a top view of the mud discharging system.
Fig. 9 is a structural diagram of the overall system.
Fig. 10 is a top view of the overall system.
In the figure: 13-a water inlet pipe,
141-blades, 142-a central rotating shaft, 144-a cross fixing plate,
31-a flocculation tank,
321-cross support plates, 322-grid plates, 323-connecting shafts, 324-fixing rods,
41-a water outlet overflow weir, 42-a water outlet overflow groove, 43-a water outlet pipe,
51-cone hopper, 52-mud discharging pipe and 53-mud discharging valve.
The specific embodiment is as follows:
the present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The invention relates to a vortex flocculation system based on an impact impeller, which comprises a flocculation tank, a water inlet system, a dosing system, a flocculation stirring system, a water outlet system and a sludge discharge system. The flocculation stirring system comprises a grid plate, a cross supporting plate, a connecting shaft, a fixing rod and the like; the water enters the flocculation tank tangentially from a water inlet system at the bottom, and then the impeller is pushed to rotate the water body. Further, the water body collides with the grid plate in the flocculation stirring system, so that the water body fully reacts with the medicament, vortex flocculation can occur due to the existence of the impact impeller and the grid plate, and the collision opportunity of particles in the water is greatly increased.
The present invention will be described in detail below:
the vortex flocculation system based on the impact impeller comprises a water inlet system, a dosing system, a flocculation stirring system, a water outlet system and a sludge discharge system.
The water inlet system comprises a water inlet valve, a flowmeter, a water inlet pipe 13 and an impact impeller. Wherein 8 water inlet pipes 13 and water inlet valves are respectively arranged, and the water inlet pipes 13 are uniformly arranged along the outer cylinder wall of the flocculation tank 31. The water flows through the outer wall surface of the pipeline flocculation tank 31 tangentially and enters the tank, the water flows enter the tank in a rotational flow mode relative to the axis of the tank body, one part of water flow impacts the blades 141 to drive the grid plate 322 to rotate, and the other part of water flow collides with the wall surface in the rotational flow process to generate boundary layer stripping to generate vortex.
The impact impeller comprises a blade 141, a central rotating shaft 142 with a plurality of screw threads on the periphery, a fixed rod 324 and a cross fixed plate 144. The center rotation shaft 142, and the vane 141 is rotatably coupled to the center rotation shaft 142 by screw threads. During operation, the angle of the vane 141 may be adjusted to accommodate different conditions. When the water inflow is smaller, the impeller 14 and the central rotating shaft 142 form 45 degrees in the axial direction, so that energy dissipation caused by direct impact of water flow on the impeller 14 is avoided; when the water inflow is large, the impeller 14 rotates, and the water flow directly impacts the impeller 14 to generate a part of energy dissipation. The fixing rod 324 is socket-connected with the upper cross fixing plate 144. The cross fixing plate 144 is fixedly connected with the top of the flocculation tank body, and the blades 141 drive the grid plate 322 and the central rotating shaft 142 to rotate simultaneously when impacted by raw water, so that the purpose that the grid plate 322 disturbs water body to generate vortex is achieved.
The dosing system comprises a dosing pump and a dosing pipe. And the three-way is utilized to realize the synchronous completion of dosing and water inflow.
The flocculation agitation system includes a flocculation tank 31 and an agitation device. The stirring device includes upper and lower cross support plates 321, a louver 322, a connecting shaft 323 connecting the cross support plates 321 and the louver 322, and a fixing rod 324 connecting the upper and lower cross support plates 321. The cross support plate 321 is provided with a single-sided opening, and two ends of the grid plate 322 are provided with a plurality of holes (ensuring that the insertion direction of the grid plate can be adjusted). In use, the connecting shaft 323 has one end inserted into the hole of the cross support plate 321 and the other end inserted into the hole of the louver 322 so that the louver 322 can rotate. When the water inflow is changed, the angle of the grid plate 322 can be adjusted to adapt to different water inflow, and the angle of the grid plate 322 is adjusted to be 45-60 degrees.
The tangential angles between each two louvers are opposite, and the water flow first passes through the narrow opening and then through the flaring. Since the wall surface is no longer a flat plate in the forward direction but has a certain expansion angle, the effect is that the speed of the main flow in the flow direction is decreasing and the corresponding pressure is increasing again. According to boundary layer theory, the fluid is uniformly mixed after passing through the grid plate.
The water flow enters the flocculation tank to apply force to the impeller, and the impeller applies reaction force to the water flow to force the water flow state to change, so that the medicament is further dispersed in the water body, and the effect of energy dissipation is achieved. In addition, the water flow drives the grid plate to rotate, the grid plate rotates to disturb the water flow to generate small vortex, and the small vortex has a promotion effect on the growth of micro flocs.
After passing through the bearings of the central shaft 142, the fixing rod 324 passes through both cross support plates 321 and finally reaches the cross fixing plate 144 above the flocculation tank 31. The fixing structures are respectively two cross support plates 321 in the stirring system and a cross fixing plate 144 above the flocculation tank 31, and the three structures firmly fix the impeller 14 and the whole stirring device 32 in the water inlet system inside the flocculation tank 31.
The water outlet system comprises a water outlet overflow weir 41, a water outlet overflow groove 42 and a water outlet pipe 43. The effluent weir 41 is a triangular weir at the upper end of the flocculation tank 31. The liquid uniformly flows out through the triangular overflow weir to the effluent overflow trough 42 and then is discharged or flowed to the next treatment unit through the outlet pipe 43.
The mud discharging system comprises a cone hopper 51 at the bottom, a mud discharging pipe 52 and a mud discharging valve 53. The cone hopper 51 is connected with the mud discharging pipe 52, the mud discharging valve 53 is arranged on the mud discharging pipe 52, when the reactor continuously intakes water, mud residues are continuously generated in the reactor, the mud residues have the functions of adsorbing and intercepting fine particles, the mud residues are continuously piled up in the reactor after full reaction, the inclination angle of the cone hopper is 45 degrees to 60 degrees, and the piled mud residues can be discharged better by utilizing the inclination angle.
Examples:
as shown in fig. 1 to 10, a vortex flocculation system based on an impact impeller comprises a water inlet system comprising a water inlet valve, a flow meter, a water inlet pipe and an impeller 14. The water pump introduces water into the device through a main pipe, a water inlet valve is arranged on the main pipe, then a flowmeter is connected to regulate the flow, then the main pipe is divided into a plurality of branch pipes, each branch pipe is provided with a valve to control the flow switch, each branch pipe is connected with a flowmeter to control the flow of each water inlet, each branch pipe is connected to the water inlet pipe 13, and after the water inlet valve is opened, the water body can impact on the impeller 14.
The dosing device is connected to the water inlet main pipe through a water inlet three-way pipe, and the dosing amount can be controlled according to the water quantity.
The flocculation agitation system includes a flocculation tank 31 and an agitation device 32. The stirring device 32 includes upper and lower cross support plates 321, a louver 322, a connecting shaft 323 connecting the cross support plates and the louver, and a fixing rod 324 connecting between the upper and lower cross support plates 321. The water inlet system and the flocculation stirring system are connected through a flange, and when the flocculation stirring system is installed, the fixing rod is fixed at first, and then the flocculation stirring system is installed from bottom to top.
The working process of the invention comprises the following steps:
when the reactor starts to work, the water inlet valve is firstly opened, and the water inlet pump is started, and because the system is a vortex flocculation system based on the impact impeller, the system does not need a large lift, and the water inlet pump needs to be a low-lift and high-flow sewage pump. After the water pump is started, the sewage and wastewater to be treated enter the reactor in a rotational flow mode in a plurality of tangential directions. The water can push the impeller, so that the size and the direction of the water flow are changed, the water does not continue to flow along with the original streamline, and unnecessary flow is avoided. The rotation of the impeller causes the water to have a rotating power at the bottom, which forces the water entering the reactor to rotate all the way to the upper part of the reactor. The water forming the vortex collides with the grid plate 322 installed inside the flocculation tank 31 to form a plurality of vortices of various sizes, increasing the number of particle collisions. Since each two of the louvers 322 are positioned in a set of opposite sides, the body of water will also flow out through the apertures between the louvers 322 when striking the louvers 322. The water will first pass through the narrow opening and then through the flaring, where it will continue to create boundary layer separation due to the angled wall surface, creating a myriad of large and small vortices.
After the water in the flocculation tank 31 is fully mixed with the chemical for flocculation reaction, the upper layer liquid becomes clear, then flows into the water outlet overflow groove 42 through the water outlet overflow weir 41 above the flocculation tank 31, and then the treated water is discharged or flows into the next reaction unit through the water outlet pipe 43 in the water outlet overflow groove 42.
After the water body and the coagulant fully react in the flocculation tank, a large amount of suspended sludge is generated, and when the sludge is accumulated to a certain height, the sludge discharge valve 53 is opened, so that the sludge is discharged through the sludge discharge pipe 52.
In addition, the invention is also suitable for treating the sewage and the wastewater flowing down from the mountain, and the invention is also suitable for treating the sewage and the wastewater flowing down from the mountain because the sewage and the wastewater flowing down from the mountain have relatively large flow and lift.
The foregoing description is only illustrative of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, and all changes that may be made in the equivalent structures described in the specification and drawings of the present invention are intended to be included in the scope of the invention.
Claims (6)
1. Vortex flocculation system based on impact impeller, its characterized in that: the flocculation stirring device comprises a water inlet system and a flocculation stirring system, wherein the water inlet system is connected with the flocculation stirring system through a flange, the flocculation stirring system comprises a flocculation tank (31), a stirring device is arranged in the flocculation tank (31), the stirring device comprises a cross support plate (321) which is arranged up and down, the two cross support plates (321) are connected through a fixing rod (324), the cross support plate (321) is connected with a grid plate (322) through a connecting shaft (323), a single surface of the cross support plate (321) is provided with holes, two ends of the grid plate (322) are provided with a plurality of holes, one end of the connecting shaft (323) is inserted into the holes of the cross support plate (321), and the other end of the connecting shaft is inserted into the holes of the grid plate (322); the water inlet system comprises an impact impeller, the impact impeller comprises blades (141), the blades (141) are rotationally connected with a central rotating shaft (142) through threads, the central rotating shaft (142) is connected with a fixed rod (324), and the fixed rod (324) is connected with an upper cross fixed plate (144) in an embedded mode; the cross fixing plate (144) is fixedly connected with the top of the flocculation tank (31) body, and the fixing rod (324) simultaneously passes through the two cross supporting plates (321); every two grid plates (322) are arranged in opposite directions, and water flows out through the holes between the grid plates (322) when impacting the grid plates (322); the body of water first passes through the narrow opening and then through the flare.
2. The impact impeller-based vortex flocculation system of claim 1, wherein: the angle of the grid plate (322) is adjusted within the range of 45 DEG to 60 deg.
3. A vortex flocculation system based on an impact impeller according to claim 2, characterized in that: the water inlet system comprises a water inlet pipe (13), and a water inlet of the water inlet pipe (13) is tangential.
4. A vortex flocculation system based on an impact impeller according to claim 3, characterized in that: a sealing bearing is arranged in the central rotating shaft (142) and is connected with a fixed rod (324).
5. A vortex flocculation system based on an impact impeller according to claim 3, characterized in that: the top of the flocculation tank (31) is provided with a water outlet system, the water outlet system comprises a water outlet overflow weir (41), a water outlet overflow groove (42) is arranged on the outer side of the water outlet overflow weir (41), and a water outlet pipe (43) is arranged on the water outlet overflow groove (42).
6. A vortex flocculation system based on an impact impeller according to claim 3, characterized in that: the bottom of the flocculation tank (31) is provided with a sludge discharge system, the sludge discharge system comprises a cone hopper (51), the cone hopper (51) is connected with a sludge discharge pipe (52), the sludge discharge pipe (52) is provided with a sludge discharge valve (53), and the inclination angle of the cone hopper (51) is 45-60 degrees.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210493306.XA CN114835219B (en) | 2022-05-07 | 2022-05-07 | Vortex flocculation system based on impact impeller |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210493306.XA CN114835219B (en) | 2022-05-07 | 2022-05-07 | Vortex flocculation system based on impact impeller |
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| CN114835219A CN114835219A (en) | 2022-08-02 |
| CN114835219B true CN114835219B (en) | 2023-10-10 |
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| CN112551664A (en) * | 2020-12-15 | 2021-03-26 | 浦华环保有限公司 | Grid type stirrer |
| CN213141478U (en) * | 2020-06-29 | 2021-05-07 | 中铁第一勘察设计院集团有限公司 | Multi-tooth micro-vortex generator |
| CN114057270A (en) * | 2022-01-13 | 2022-02-18 | 河北粤海水务集团有限公司 | Cyclone column, flocculator containing cyclone column and application of flocculator |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101142862B1 (en) * | 2010-01-14 | 2012-05-15 | (주)범한엔지니어링 종합건축사 사무소 | Vertical type flocculator attached eddycurent generator |
| CN102068955A (en) * | 2010-12-15 | 2011-05-25 | 天津大学 | Flocculation reactor with special-shaped spoiler |
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- 2022-05-07 CN CN202210493306.XA patent/CN114835219B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201543280U (en) * | 2009-09-29 | 2010-08-11 | 汉川市洁波净化有限公司 | ABS three-dimensional grid and flocculoreaction device applied by same |
| CN204981286U (en) * | 2015-07-02 | 2016-01-20 | 昆明佳晓自来水工程技术股份有限公司 | Novel whirl sedimentation tank thoughtlessly congeals device |
| CN206126924U (en) * | 2016-06-07 | 2017-04-26 | 北京中电加美环保科技有限公司 | Microvovtex revolves flocculation reaction tank |
| CN213141478U (en) * | 2020-06-29 | 2021-05-07 | 中铁第一勘察设计院集团有限公司 | Multi-tooth micro-vortex generator |
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| CN114835219A (en) | 2022-08-02 |
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