CN106587306A - High-speed coagulation reactor for feed water treatment - Google Patents
High-speed coagulation reactor for feed water treatment Download PDFInfo
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- CN106587306A CN106587306A CN201611260881.6A CN201611260881A CN106587306A CN 106587306 A CN106587306 A CN 106587306A CN 201611260881 A CN201611260881 A CN 201611260881A CN 106587306 A CN106587306 A CN 106587306A
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- tank body
- reactor
- reactor tank
- agitator
- flow
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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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- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
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- 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)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention particularly relates to a high-speed coagulation reactor for feed water treatment. The high-speed coagulation reactor for feed water treatment comprises a reactor tank body, a water inlet pipe and a water outlet pipe. An L-shaped feeding pipe is arranged on the upper portion of the reactor tank body. Meanwhile, a stirrer and a flow disturbing cylinder are further arranged inside the reactor tank body. The stirrer is arranged in the center of the reactor tank body and connected to a motor through a speed reducer. The flow disturbing cylinder is fixed to the top end of the reactor tank body and located between the stirrer and the reactor tank body. The water inlet pipe and the water outlet pipe are embedded into the outer walls of the left side and the right side of the reactor tank body correspondingly. The high-speed coagulation reactor for feed water treatment can improve the mixing rate, shorten the mixing time and improve the removal rate of organic matter through coagulating sedimentation, so that the follow-up flocculation effect, the sedimentation effect and the filtering effect are further improved, and the quality of water discharged from a filter chamber in the following period is remarkably improved; and meanwhile, the dosage of a coagulant can be further reduced, the volume of a mixing pool is reduced, and the operating cost and the engineering construction investment are reduced.
Description
Technical field
The present invention relates to water-treatment technology field, more particularly to a kind of Water purification high speed coagulation reactor.
Background technology
At present, China is most of all in 1～3NTU, filter tank using water treatment plant's sedimentation tank delivery turbidity of conventional treatment process
Delivery turbidity is usually no more than 1NTU；And adopt external advanced water treatment plant's sedimentation tank delivery turbidity of process similarity flow process not high
In 1NTU, filter tank delivery turbidity is not higher than 0.1NTU, without the need for advanced treating up to direct drinking standard.And domestic conventional treatment process
Needing afterwards to increase can make to reach the not higher than level of 0.1NTU for water turbidity after membrane filtration advanced treating.In order to not increase operation
Under conditions of cost, it is ensured that water supply quality reaches 106 Drinking Water waters standard of national newest promulgation, both at home and abroad from pre-
The many-sides such as process, the reinforcing of common process, advanced treating develop numerous Water purification technologies.
Wherein, coagulation process is used as indispensable preposition key link, the quality of its effect in water treatment technological process
Operating condition, final outflow water quality and the cost of subsequent process flow are often determined, therefore coagulation is in engineering of water treatment
One of important research and development field.
At present, enhanced coagulation technique is typically wadded a quilt with cotton with improving coagulant performance, increase dosage, extending flocculation time, adjustment
Hydraulics of solidifying reactor etc. as main improvement direction, and to first step --- the optimization of mixing of coagulation process
Research is less.Leading technique in as Water purification, the degree direct influence of medicament mixing subsequently flocculates, precipitates, filtering effect
Really.Based on this, the present invention proposes a kind of Water purification high speed coagulation reactor.
The content of the invention
In order to make up the defect of prior art, the invention provides a kind of Water purification of high desulfurization rate is anti-with high speed coagulation
Answer device.
The present invention is achieved through the following technical solutions：
A kind of Water purification high speed coagulation reactor, it is characterised in that：Including reactor tank body, water inlet pipe and outlet pipe, institute
State reactor tank body top and be provided with L-type feed pipe, simultaneous reactions device tank interior is additionally provided with agitator and flow-disturbing cylinder, the stirring
Device is arranged on the central authorities of reactor tank body, and by reductor motor is connected to；The flow-disturbing cylinder is fixed on reactor tank body top,
Between agitator and reactor tank body；The water inlet pipe and outlet pipe are embedded in respectively the outer of the left and right sides of reactor tank body
On wall.
The water inlet pipe is located at reactor tank base, and the outlet pipe is located at the top of reactor tank body.
2 ~ 3 times of a diameter of propeller-blade external diameter of the flow-disturbing cylinder, while uniform cloth hole, percent opening on flow-disturbing cylinder cylinder
Not less than 50%.
The propeller-blade external diameter be 200～400mm, blade angle be 5～20 °, agitator speed be 800～
1200r/min。
The L-type feed pipe is located inside flow-disturbing cylinder, and its discharging opening is located at 10 ~ 30mm of agitator lower section.
The invention has the beneficial effects as follows：Water purification high speed coagulation reactor, it is possible to increase mixing rate, reduces mixed
The conjunction time, coagulant is uniformly mixed rapidly within the shortest time with water-borne glue body granule, improve coagulating sedimentation to Organic substance
Clearance, and then improve follow-up flocculation, precipitation, filter effect, make effluent quality substantially excellent improvement behind filter tank；Simultaneously can also
Dosage of PAC is reduced, reduces mixing pit volume, reduce operating cost and engineering construction investment.
Description of the drawings
Accompanying drawing 1 is Water purification high speed coagulation reactor structural representation of the present invention.
Accompanying drawing 2 is Water purification high speed coagulation reactor A-A cross-sectional views of the present invention.
Accompanying drawing 3 is Water purification high speed coagulation reactor B-B cross-sectional views of the present invention.
In accompanying drawing, 1 reactor, 2 motors, 3 reductors, 4 propeller-blades, 5 flow-disturbing cylinders, 6 water inlet pipes, 7 outlet pipes, 8 add
Pencil.
Specific embodiment
In order that the technical problem to be solved, technical scheme and beneficial effect become more apparent, below tie
Drawings and Examples are closed, the present invention will be described in detail.It should be noted that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
Water purification high speed coagulation reactor, including reactor tank body 1, water inlet pipe 6 and outlet pipe 7, the reaction
Device tank body top is provided with L-type feed pipe 8, and agitator 4 and flow-disturbing cylinder 5, the agitator are additionally provided with inside simultaneous reactions device tank body 1
4 central authorities for being arranged on reactor tank body 1, by reductor 3 motor 2 is connected to；The flow-disturbing cylinder 5 is fixed on reactor tank body 1
Top, between agitator 4 and reactor tank body 1；The water inlet pipe 6 and outlet pipe 7 are embedded in respectively a left side for reactor tank body 1
On the outer wall of right both sides.
The water inlet pipe 6 is located at the bottom of reactor tank body 1, and the outlet pipe 7 is located at the top of reactor tank body 1.
2 ~ 3 times of a diameter of blade external diameter of agitator 4 of the flow-disturbing cylinder 5, while uniform cloth hole on the cylinder of flow-disturbing cylinder 5, opens
Porosity is not less than 50%.
The blade external diameter of the agitator 4 be 200～400mm, blade angle be 5～20 °, the rotating speed of agitator 4 be 800～
1200r/min。
The L-type feed pipe 8 is located inside flow-disturbing cylinder 5, and its discharging opening is located at 10 ~ 30mm of the lower section of agitator 4.
Embodiment 1
The agitator 4 is 960r/min using the vertical installation of formula, rotating speed is totally submerged, and blade external diameter is 400mm, and angle is
15°；2 times of a diameter of blade external diameter of agitator 4 of flow-disturbing cylinder 5, the mesh on flow-disturbing cylinder 5 is circular hole, and percent opening is 70%；L-type is entered
The discharging opening of expects pipe 8 is placed in the blade of agitator 4 lower section 15mm.Add the mixed source water of aluminium polychlorid mixed into high-speed stirred
Reactor is closed, in the case where driving means drive, high-speed mixing equipment is stirred to water body, and the response time is 10s, is then entered successively
Enter original flocculation basin, sedimentation tank, sand filter.
Embodiment 2
The agitator 4 is 800r/min using the vertical installation of formula, rotating speed is totally submerged, and blade external diameter is 360mm, and angle is
20°；2.5 times of a diameter of blade external diameter of agitator 4 of flow-disturbing cylinder 5, the mesh on flow-disturbing cylinder 5 is circular hole, and percent opening is 50%；L-type
The discharging opening of feed pipe 8 is placed in the blade of agitator 4 lower section 10mm.The mixed source water of aluminium polychlorid is added to enter high-speed stirred
Mixing reactor, in the case where driving means drive, high-speed mixing equipment is stirred to water body, and the response time is 8s, then successively
Into original flocculation basin, sedimentation tank, sand filter.
Embodiment 3
The agitator 4 is 1200r/min using the vertical installation of formula, rotating speed is totally submerged, and blade external diameter is 200mm, and angle is
5°；3 times of a diameter of blade external diameter of agitator 4 of flow-disturbing cylinder 5, the mesh on flow-disturbing cylinder 5 is circular hole, and percent opening is 80%；L-type is entered
The discharging opening of expects pipe 8 is placed in the blade of agitator 4 lower section 30mm.Add the mixed source water of aluminium polychlorid mixed into high-speed stirred
Reactor is closed, in the case where driving means drive, high-speed mixing equipment is stirred to water body, and the response time is 5s, is then entered successively
Enter original flocculation basin, sedimentation tank, sand filter.
Water purification high speed coagulation reactor, to mixed in terms of improving diffusion velocity, forming micro swirl diffusion two
The optimization that conjunction is carried out.
First, diffusion velocity is improved
The effect of coagulation has substantial connection with diffusion velocity of the medicament in water.Add in raw water after coagulant, produce two kinds of effects
Should：1. diffusion of the coagulant in water with mix；2. coagulant hydrolysis, hydrolyzate makes it de- steady with colloidal solid effect.By
Diffusion rate of the coagulant in water is far longer than in hydrolysis, de- steady speed, if coagulant can not be rapid and equal in water
Even mixing, then at the position that coagulant is more, rapidly de- steady knot is big for colloidal solid, and colloidal solid is just where coagulant deficiency
Lack the big condition of knot, so may result in water-borne glue body granule can not uniformly take off surely, flocculating effect is deteriorated.
The hydrolysis morphon of such as aluminium salt can be in several microseconds（~10-4s）Interior formation, while some low cohesion and morphologies can be
Formed in 1s, charge neutrality cohesion must be completed in its hydrolysis and before hydroxide precipitation, it is therefore desirable to shorten fast
Fast incorporation time, makes coagulant mix within the shortest time with colloidal solid.So mix stages require to carry out water body strongly
Stirring, make coagulant it is rapid, equably with water mixing.
The mixing section incorporation time of existing water treatment plant is usually 30s, using folding dasher more than mechanical stirring equipment, stirs
Mixing equipment rotating speed is 100～200r/min；Propeller-blade external diameter is 500～1500mm.
Water purification high speed coagulation reactor, is stirred by reducing propeller-blade external diameter to 200～400mm, raising
Device rotating speed is mixed to 800～1200r/min, shortening dosing outlet and blade distance to 10～30mm, is realized in mixing reactor
High gradient after dispensing quickly mixes, Reasonable adjustment stirring intensity, it is ensured that at short notice formed and primary particles are collided
Gather required water flow structure.The time of hybrid reaction shorten to 5～10s, by the reaction controlling of mixing section maximally effective
In time, the invalid hybrid reaction of follow-up 20s is reduced or remitted, made coagulant mix homogeneously within the shortest time with colloidal solid, with
Improve the de- steady effect of follow-up colloidal solid.Simultaneously incorporation time shortens reduces can mixing pit volume, reduce engineering construction and throw
Money.
2nd, micro swirl diffusion is formed
During hybrid reaction, the blade energy transmission feedwater body of agitator rotation makes the liquid in reactor that local to occur
Shear flow, causes to generate the large and small vortex group of different scale, and water body is quick in formation subrange and the convection current of disorder is transported
It is dynamic.Convention diffusion in this subrange caused by vortex movement is referred to as eddy diffusivity.Eddy diffusivity speed depends on quilt
The turbulence state of stirring water body.Less turbulence is higher, and mixing rate is faster.
Water purification high speed coagulation reactor, by arranging mesh flow-disturbing cylinder in high speed agitator periphery, works as turbine
When the blade of agitator is rotated, fluid outwardly, forms high rapid by the mesh of flow-disturbing cylinder between agitator and flow-disturbing cylinder
Dynamic is sufficiently mixed area, and goes out at stream to produce one high-speed jet in mesh, makes fluid have higher pressure head, promotes liquid to exist
Reactor internal circulation flow, further forms micro swirl diffusion, increases the flow field less turbulence in reactor, promotes material microcosmic
Mixing on yardstick, improves mixing effect.Under the guide functions of flow-disturbing cylinder, current flow into cylinder from cylinder top and bottom
It is interior, a circulation is formed, the radial flow and axial direction stream of high speed are produced, reduce slipstream, change original agitator flow field uneven
Problem that is even, being also easy to produce " swirl phenomenon ", makes mixing more rapidly uniform.
Claims (5)
1. a kind of Water purification high speed coagulation reactor, it is characterised in that：Including reactor tank body（1）, water inlet pipe（6）With go out
Water pipe（7）, the reactor tank body（1）Top is provided with L-type feed pipe（8）, simultaneous reactions device tank body（1）Inside is additionally provided with stirring
Device（4）With flow-disturbing cylinder（5）, the agitator（4）It is arranged on reactor tank body（1）Central authorities, by reductor（3）It is connected to electricity
Machine（2）；The flow-disturbing cylinder（5）It is fixed on reactor tank body（1）Top, between agitator（4）With reactor tank body（1）Between；
The water inlet pipe（6）And outlet pipe（7）Reactor tank body is embedded in respectively（1）The left and right sides outer wall on.
2. Water purification according to claim 1 high speed coagulation reactor, it is characterised in that：The water inlet pipe（6）Position
In reactor tank body（1）Bottom, the outlet pipe（7）Positioned at reactor tank body（1）Top.
3. Water purification according to claim 1 high speed coagulation reactor, it is characterised in that：The flow-disturbing cylinder（5）Directly
Footpath is agitator（4）2 ~ 3 times of blade external diameter, while flow-disturbing cylinder（5）Uniform cloth hole on cylinder, percent opening is not less than 50%.
4. Water purification according to claim 3 high speed coagulation reactor, it is characterised in that：The agitator（4）Oar
Leaf external diameter is 200～400mm, and blade angle is 5～20 °, agitator（4）Rotating speed is 800～1200r/min.
5. Water purification according to claim 1 high speed coagulation reactor, it is characterised in that：The L-type feed pipe（8）
Positioned at flow-disturbing cylinder（5）Inside, its discharging opening is located at agitator（4）At 10 ~ 30mm of lower section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611260881.6A CN106587306B (en) | 2016-12-30 | 2016-12-30 | High-speed coagulation reactor for water supply treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611260881.6A CN106587306B (en) | 2016-12-30 | 2016-12-30 | High-speed coagulation reactor for water supply treatment |
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| Publication Number | Publication Date |
|---|---|
| CN106587306A true CN106587306A (en) | 2017-04-26 |
| CN106587306B CN106587306B (en) | 2023-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611260881.6A Active CN106587306B (en) | 2016-12-30 | 2016-12-30 | High-speed coagulation reactor for water supply treatment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112062242A (en) * | 2020-08-25 | 2020-12-11 | 山东华城城建设计工程有限公司 | Device and method for mixing and stirring water |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102050529A (en) * | 2009-10-28 | 2011-05-11 | 轻工业环境保护研究所 | Immersed water treatment device of inner circulating membrane coagulation reactor |
| CN202893246U (en) * | 2012-11-27 | 2013-04-24 | 北京市可持续发展促进会 | Coagulating mixer |
| CN106215840A (en) * | 2016-08-31 | 2016-12-14 | 薛建萍 | A kind of sound mix and blend reactor |
-
2016
- 2016-12-30 CN CN201611260881.6A patent/CN106587306B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102050529A (en) * | 2009-10-28 | 2011-05-11 | 轻工业环境保护研究所 | Immersed water treatment device of inner circulating membrane coagulation reactor |
| CN202893246U (en) * | 2012-11-27 | 2013-04-24 | 北京市可持续发展促进会 | Coagulating mixer |
| CN106215840A (en) * | 2016-08-31 | 2016-12-14 | 薛建萍 | A kind of sound mix and blend reactor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112062242A (en) * | 2020-08-25 | 2020-12-11 | 山东华城城建设计工程有限公司 | Device and method for mixing and stirring water |
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| Publication number | Publication date |
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| CN106587306B (en) | 2023-08-08 |
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Address after: 8th Floor, Building C, Yinhe Building, No. 2008 Xinluo Street, High tech Zone, Jinan City, Shandong Province, 250101 Applicant after: Shandong Huacheng Engineering Technology Co.,Ltd. Address before: 8th Floor, Building C, Yinhe Building, No. 2008 Xinluo Street, High tech Zone, Jinan City, Shandong Province, 250101 Applicant before: SHANDONG HUACHENG URBAN CONSTRUCTION DESIGN ENGINEERING CO.,LTD. |
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