CN209537030U - A kind of micro-nano bubble air floatation machine - Google Patents
A kind of micro-nano bubble air floatation machine Download PDFInfo
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- CN209537030U CN209537030U CN201920059813.6U CN201920059813U CN209537030U CN 209537030 U CN209537030 U CN 209537030U CN 201920059813 U CN201920059813 U CN 201920059813U CN 209537030 U CN209537030 U CN 209537030U
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Abstract
The utility model relates to sewage treatment field more particularly to a kind of micro-nano bubble air floatation machine, including micro-nano bubble generator, cabinet and control system, the micro-nano bubble generator is connect by admission line and outlet pipe with cabinet；Water inlet pipe and outlet pipe are provided on the cabinet；The cabinet is divided into two parts, and a part is molten gas release room, and another part is to be separated by solid-liquid separation room；The cabinet top is provided with Slag Scraping Device, and the Slag Scraping Device transverse box top can move in the vertical direction.Utility model has the advantages that using micro-nano bubble generator, reduce the air compressor machine and high pressure dissolving on traditional air floatation machine, replace traditional reflux air dissolving system with multiphase pump, reduce number of devices and maintenance cost and more safe and reliable, bubble smaller (micro/nano level) is more more evenly, greatly improves treatment effect；Collect that deslagging is preposition in water inlet end and to have done cambered design, avoids because sediment is deposited on bottom caused by scraping slag, water flow is more smooth.
Description
Technical field
The utility model relates to sewage-treatment plant more particularly to a kind of micro-nano bubble air floatation machines.
Background technique
Air floatation machine is that air dissolving system generates a large amount of micro air bubble in water, makes air with the micro-bubble shape of high degree of dispersion
Formula is attached on suspended particle, is caused density to be less than the state of water, so that it is kept afloat using law of buoyancy, to realize
The water treatment facilities of solid- liquid separation.Air floatation machine is divided into super efficiency shallow air flotation machine, air flotation turbo, flat flow air floatation machine.Exist at present
There is application in terms of water supply, industrial wastewater and municipal sewage treatment.Air floatation machine advantage is that its solid- liquid separation equipment has investment
Less, the features such as taking up an area minimum face, high degree of automation, convenient operation and management.
Micro-nano bubble generator is the main component for generating micro-nano bubble.People are usually the size being present in water
It is called micron bubble in 10 to tens microns of bubbles；Size is called nano bubble in hundreds of nanometers of bubbles below, and is deposited
Bubble admixture among both sides claims micro-nano bubble.
Existing air floatation machine using air compressor machine, high-pressure container and reflux air dissolving system, number of devices is more, and safeguard at
This is higher, and security reliability is general, and bubble is larger and uneven, and treatment effect is poor.
Utility model content
Subtracted to solve the above problems, we have proposed a kind of micro-nano bubble air floatation machines using micro-nano bubble generator
Air compressor machine and high pressure dissolving on few tradition air floatation machine, traditional reflux air dissolving system is replaced with multiphase pump, reduces number of devices
Amount and maintenance cost and more safe and reliable, bubble smaller (micro/nano level) is more more evenly, greatly improves treatment effect；Collection row
Slag is preposition in water inlet end and to have done cambered design, avoids because sediment is deposited on bottom caused by scraping slag, water flow is more smooth.
To realize the demand, the utility model achieves the above object through the following technical schemes: a kind of micro-nano gas
Air floatation machine is steeped, including micro-nano bubble generator, cabinet and control system, the micro-nano bubble generator pass through admission line
It is connect with outlet pipe with cabinet；Water inlet pipe and outlet pipe are provided on the cabinet；The cabinet is divided into two parts, a part
For molten gas release room, another part is to be separated by solid-liquid separation room；The cabinet top is provided with Slag Scraping Device, the Slag Scraping Device transverse box
Top can move in the vertical direction, and cabinet edge is provided with dump tank and scum pipe, the dump tank and scum pipe and Slag Scraping Device
It is arranged in parallel.
Further, a kind of micro-nano bubble air floatation machine, the baffle and bottom that the cabinet separates are at an angle, molten
Gas release room is open type, and separation of solid and liquid room is closing in type.
Further, a kind of micro-nano bubble air floatation machine, the height of baffle plate that the cabinet separates are equal to box height
1/2。
Further, a kind of micro-nano bubble air floatation machine, the outlet pipe and return pipe setting are being separated by solid-liquid separation room one
Side.
Further, a kind of micro-nano bubble air floatation machine, the water inlet pipe are arranged in molten gas release room side.
Micro-nano bubble feature:
(1) residence time is long in water: after general bubble generates in water, the water surface can be quickly risen to and rupture disappearance,
It is short to there is the time.And micron bubble is even up to a few minutes by generating to final rupture to disappear to have tens seconds in water.
There is data to indicate, the rate of climb of the bubble that diameter is 1mm in water is 6m/min, and the bubble that diameter is 10 μm is in water
In the rate of climb be 3mm/min.As can be seen that the rate of climb of micron bubble in water is very slow, so can be in water
Stay longer.
(2) charging property: micron bubble surface is negatively charged, and relative to common blister, institute is negatively charged relatively high,
The surface loading of general 30 μm of bubbles below in -40mV or so, this be also micron bubble can largely flock together the time compared with
One of the reason of length is without rupturing.Using the negatively charged of micron bubble, substance positively charged in water can be adsorbed, to going to remove water
Good effect is played in the absorption and separation of middle suspended matter or pollutant.
(3) self pressurization is with dissolution: the pressure inside bubble is related with surface tension, and the diameter of bubble is about small, inside pressure
Power is bigger.Due to the diameter very little of micron bubble, specific surface area is very big, so pressure of its internal pressure than environmental liquids
It is much larger, and formally due to this internal pressurization of micron bubble and the advantage of large specific surface area, its gas dissolution capacity is
As many as the hundred times of grade bubble.Because solubility and pressure have much relations, micron bubble internal pressure is increased to
When certain threshold, interface can be made to reach hypersaturated state, while the gas in more bubbles is dissolved into water, itself
It can slowly dissolution disappear.
(4) shrinkage: because itself is pressurized after micron bubble generates in water, the continuous contraction or expansion of meeting, diameter
Change always.It is indicated according to current research, 20 μm~40 μm of bubble can be with the speed search of 1.3 μm/s to 8 μm or so, so
After-contraction speed meeting soil sharply increases, and hereafter may be further split into nano grade air bubbles or completely dissolve in water.
(5) electrokinetic potential is high: the surface of micron bubble can adsorb electrically charged ion such as OH-, and in this OH-ion layer
Around, and it can be distributed counter charges sheath such as H+, the surface of such micron bubble is formed electric double layer, the electricity at electric double layer interface
Position is also known as electrokinetic potential, and the height of electrokinetic potential largely determines the absorption property at micron bubble interface.
Because of the shrinkage of micron bubble, so that charge ion is largely gathered in the interface of bubble within the section time, until bubble is complete
Before full rupture dissolution, electrokinetic potential can all increase always, and it is better to the absorption property of charged particle in water to show.
(6) generate free radicals ion: general water, 10 μm of micron bubbles below are in the case where continuous shrink, double electricity
The density of charge of layer can increase rapidly, when bubbles burst, have reached high concentration positive and negative charge spark by
The energy of savings discharges, and generates a large amount of radical ion, such as oxonium ion, hydrogen ion, hydroxyl ion.And hydroxyl therein is certainly
There is very strong oxidation by base, good purified water can be played with some organic pollutants for being difficult to degrade of oxygenolysis
The effect of matter.
(7) oxygen transfer is high-efficient: during Air Exposure waste water, the mass-transfer efficiency of oxygen is to influence waste water treatment efficiency
One of an important factor for, and the size of bubble diameter is inseparable with the mass-transfer efficiency of oxygen when aeration.Due to micron gas
Bubble has very big specific surface area, in water can stay longer, in addition the pressurization of itself, so that the mass transfer of gas-liquid interface
Efficiency can continue to enhance.
The utility model has the beneficial effects that: reducing the pneumatics on traditional air floatation machine using micro-nano bubble generator
Machine and high pressure dissolving replace traditional reflux air dissolving system with multiphase pump, reduce number of devices and maintenance cost and more pacify
Complete reliable, bubble smaller (micro/nano level) is more more evenly, greatly improves treatment effect；Collect that deslagging is preposition in water inlet end and to be done
Cambered design is avoided because sediment is deposited on bottom caused by scraping slag, and water flow is more smooth.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described.It is clear that the accompanying drawings in the following description is this reality
Without creative efforts, may be used also for those of ordinary skill in the art with novel some embodiments
To obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of traditional air floatation machine；
Fig. 2 is the air floatation machine structural schematic diagram of the present embodiment.
In figure, air compressor machine A, venting device B, container tank C, water inlet D, molten gas release room E, be separated by solid-liquid separation room F, Slag Scraping Device G,
It is discharged H, slag-drip opening I, reflux pump J；
It is micro-nano bubble generator 1, water inlet pipe 2, outlet pipe 3, return pipe 4, dump tank 5, scum pipe 6, Slag Scraping Device 7, molten
Gas release room 8 is separated by solid-liquid separation room 9, admission line 10, outlet pipe 11, cabinet 12, baffle 13.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described.Obviously, it is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
Embodiment 1:
A kind of micro-nano bubble air floatation machine, including micro-nano bubble generator 1, cabinet 12 and control system, the micro-nano
Rice bubble generator is connect by admission line 10 and outlet pipe 11 with cabinet；It is provided with water inlet pipe 2 on the cabinet and goes out
Water pipe 3；The cabinet is divided into two parts, and a part is molten gas release room 8, and another part is to be separated by solid-liquid separation room 9；On the cabinet
Portion is provided with Slag Scraping Device 7, and the Slag Scraping Device transverse box top can move in the vertical direction, cabinet edge is provided with dump tank 5
With scum pipe 6, the dump tank and scum pipe are arranged in parallel with Slag Scraping Device.
At an angle, molten gas release room is open type to the baffle 13 and bottom that the cabinet separates, and being separated by solid-liquid separation room is
The height of baffle plate that the cabinet separates that closes up is equal to the 1/2 of box height.
The outlet pipe and the setting of return pipe 4 are being separated by solid-liquid separation room side.
The water inlet pipe is arranged in molten gas release room side.
Micro-nano bubble feature:
(1) residence time is long in water: after general bubble generates in water, the water surface can be quickly risen to and rupture disappearance,
It is short to there is the time.And micron bubble is even up to a few minutes by generating to final rupture to disappear to have tens seconds in water.
There is data to indicate, the rate of climb of the bubble that diameter is 1mm in water is 6m/min, and the bubble that diameter is 10 μm is in water
In the rate of climb be 3mm/min.As can be seen that the rate of climb of micron bubble in water is very slow, so can be in water
Stay longer.
(2) charging property: micron bubble surface is negatively charged, and relative to common blister, institute is negatively charged relatively high,
The surface loading of general 30 μm of bubbles below in -40mV or so, this be also micron bubble can largely flock together the time compared with
One of the reason of length is without rupturing.Using the negatively charged of micron bubble, substance positively charged in water can be adsorbed, to going to remove water
Good effect is played in the absorption and separation of middle suspended matter or pollutant.
(3) self pressurization is with dissolution: the pressure inside bubble is related with surface tension, and the diameter of bubble is about small, inside pressure
Power is bigger.Due to the diameter very little of micron bubble, specific surface area is very big, so pressure of its internal pressure than environmental liquids
It is much larger, and formally due to this internal pressurization of micron bubble and the advantage of large specific surface area, its gas dissolution capacity is
As many as the hundred times of grade bubble.Because solubility and pressure have much relations, micron bubble internal pressure is increased to
When certain threshold, interface can be made to reach hypersaturated state, while the gas in more bubbles is dissolved into water, itself
It can slowly dissolution disappear.
(4) shrinkage: because itself is pressurized after micron bubble generates in water, the continuous contraction or expansion of meeting, diameter
Change always.It is indicated according to current research, 20 μm~40 μm of bubble can be with the speed search of 1.3 μm/s to 8 μm or so, so
After-contraction speed meeting soil sharply increases, and hereafter may be further split into nano grade air bubbles or completely dissolve in water.
(5) electrokinetic potential is high: the surface of micron bubble can adsorb electrically charged ion such as OH-, and in this OH-ion layer
Around, and it can be distributed counter charges sheath such as H+, the surface of such micron bubble is formed electric double layer, the electricity at electric double layer interface
Position is also known as electrokinetic potential, and the height of electrokinetic potential largely determines the absorption property at micron bubble interface.
Because of the shrinkage of micron bubble, so that charge ion is largely gathered in the interface of bubble within the section time, until bubble is complete
Before full rupture dissolution, electrokinetic potential can all increase always, and it is better to the absorption property of charged particle in water to show.
(6) generate free radicals ion: general water, 10 μm of micron bubbles below are in the case where continuous shrink, double electricity
The density of charge of layer can increase rapidly, when bubbles burst, have reached high concentration positive and negative charge spark by
The energy of savings discharges, and generates a large amount of radical ion, such as oxonium ion, hydrogen ion, hydroxyl ion.And hydroxyl therein is certainly
There is very strong oxidation by base, good purified water can be played with some organic pollutants for being difficult to degrade of oxygenolysis
The effect of matter.
(7) oxygen transfer is high-efficient: during Air Exposure waste water, the mass-transfer efficiency of oxygen is to influence waste water treatment efficiency
One of an important factor for, and the size of bubble diameter is inseparable with the mass-transfer efficiency of oxygen when aeration.Due to micron gas
Bubble has very big specific surface area, in water can stay longer, in addition the pressurization of itself, so that the mass transfer of gas-liquid interface
Efficiency can continue to enhance.
The beneficial effect of the present embodiment is: using micro-nano bubble generator, reduces the air compressor machine on traditional air floatation machine
With high pressure dissolving, replace traditional reflux air dissolving system with multiphase pump, reduces number of devices and maintenance cost and safer
Reliably, bubble smaller (micro/nano level) is more more evenly, greatly improves treatment effect；Collect that deslagging is preposition in water inlet end and to have done arc
Shape design, avoids because sediment is deposited on bottom caused by scraping slag, water flow is more smooth.
Claims (5)
1. a kind of micro-nano bubble air floatation machine, it is characterised in that: including micro-nano bubble generator, cabinet and control system, institute
Micro-nano bubble generator is stated to connect by admission line and outlet pipe with cabinet；It is provided with water inlet pipe on the cabinet and goes out
Water pipe；The cabinet is divided into two parts, and a part is molten gas release room, and another part is to be separated by solid-liquid separation room；The cabinet top
It is provided with Slag Scraping Device, the Slag Scraping Device transverse box top can move in the vertical direction, cabinet edge is provided with dump tank and row
Slag pipe, the dump tank and scum pipe are arranged in parallel with Slag Scraping Device.
2. micro-nano bubble air floatation machine as described in claim 1, it is characterised in that: the baffle that the cabinet separates is in bottom
Certain angle, molten gas release room are open type, and separation of solid and liquid room is closing in type.
3. micro-nano bubble air floatation machine as claimed in claim 2, it is characterised in that: the height of baffle plate that the cabinet separates is equal to
The 1/2 of box height.
4. micro-nano bubble air floatation machine as claimed in claim 2, it is characterised in that: the outlet pipe and return pipe setting are solid
Liquid separation chamber side.
5. micro-nano bubble air floatation machine as claimed in claim 2, it is characterised in that: the water inlet pipe is arranged in molten gas release room
Side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920059813.6U CN209537030U (en) | 2019-01-15 | 2019-01-15 | A kind of micro-nano bubble air floatation machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920059813.6U CN209537030U (en) | 2019-01-15 | 2019-01-15 | A kind of micro-nano bubble air floatation machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209537030U true CN209537030U (en) | 2019-10-25 |
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ID=68269731
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920059813.6U Active CN209537030U (en) | 2019-01-15 | 2019-01-15 | A kind of micro-nano bubble air floatation machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209537030U (en) |
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2019
- 2019-01-15 CN CN201920059813.6U patent/CN209537030U/en active Active
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