CN108686838A - A kind of nano-bubble generator - Google Patents
A kind of nano-bubble generator Download PDFInfo
- Publication number
- CN108686838A CN108686838A CN201810469282.8A CN201810469282A CN108686838A CN 108686838 A CN108686838 A CN 108686838A CN 201810469282 A CN201810469282 A CN 201810469282A CN 108686838 A CN108686838 A CN 108686838A
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- CN
- China
- Prior art keywords
- copper foil
- air
- nano
- gas
- water
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/02—Froth-flotation processes
- B03D1/025—Froth-flotation processes adapted for the flotation of fines
Abstract
The invention discloses a kind of nano-bubble generators, including shell, horizontal baffle, filter plate and microflow channels, microflow channels include that inner tube, outer tube and the copper foil volume being arranged between inner tube and outer tube, copper foil volume are made of the copper foil for being etched with miniature air-flow conduit on surface;Nanometer foam generator further includes the air pump that air is injected into air cavity and the water pump to gas-liquid mixed intracavitary water filling.Nano-bubble generator of the present invention, it curls into microflow channels using the copper foil for being etched with a large amount of miniature air-flow conduits, high pressure gas forms a large amount of fine air-flow by microflow channels, and fine air-flow is sheared by high-speed rotating blade, to form a large amount of nano bubble in gas-liquid mixed sap cavity.The size for the nano bubble that this nano-bubble generator generates can be controlled by the rotating speed of the diameter and motor that control miniature air-flow conduit, and the dimensionally stable of the nano bubble of generation, bubbles volume is big, can improve flotation efficiency height and mineral recovery rate is high.
Description
Technical field
The present invention relates to mineral floating technical field, more particularly to a kind of device carrying out flotation using nano bubble.
Background technology
Foam flotation method is usually used to sorting fine particle mineral, relative to tabling, high-gradient magnetic separation and stone
Oil aggregation, bubble flotation have better efficiency and lower cost.The main principle of method for floating is to be based on mineral and slag
The difference of surface chemical property is carried out mineral and impurity using the hydrophobic nature of mineral particle surface and the hydrophily of slag
Sorting.
As the mankind continually developing and consuming to mineral resources on the earth, rich ore and tractable ore resource subtract increasingly
It is few, and the demand of metal material increasingly increases, so having to exploit and sort poor, thin, matrix.This kind of ore is necessary
That to be ground carefully could make the sufficient monomer dissociation of valuable mineral, in some cases, reach monomer dissociation and be intended to very
Material is milled down to the granularity less than 10 μm.However, with the reduction of ore grain size, root can occur for the flotation behavior of mineral grain
This variation, conventional flotation technique fully recycle these useful micro-size fraction mines because the foam grain size of its generation is big it is difficult to meet
The requirement of object.
Invention content
In view of this, the object of the present invention is to provide a kind of nano-bubble generator, produced with solving existing foam transmitter
Raw foam grain size is big, can not achieve the problem of fully being recycled to subparticle grade mineral.
Nano-bubble generator of the present invention includes the shell of upper opening, horizontal baffle is provided in the middle part of the shell,
Shell is separated into upper and lower two parts by the horizontal baffle, and lower part is divided into air cavity, and top is divided into gas-liquid mixed chamber, the shell
Upper end be additionally provided with filter plate, the filter plate is for preventing particulate matter from falling into gas-liquid mixed chamber;
The nanometer foam generator further includes several microflow channels being evenly arranged on horizontal baffle, the microflow channels
Including inner tube, outer tube and the copper foil volume being arranged between inner tube and outer tube, the copper foil volume is by being etched with miniature gas on surface
The copper foil in chute road is made, and for the diameter of the miniature air-flow conduit in 10-30um, the inlet end of the copper foil volume is located at air cavity
In, the exhaust end of copper foil volume is located in gas-liquid mixed chamber;The both ends of said inner tube are fixedly installed water-sealed bearing, the waterproof axis
Middle setting is held by shaft, the upper end of the shaft is provided with rolls up the blade that discharge air-flow is sheared to copper foil, in the air cavity
It is provided with the motor of drive shaft;
The nanometer foam generator further includes the air pump of air being injected into air cavity and to gas-liquid mixed intracavitary water filling
Water pump;
The nanometer foam generator further includes water tank, is arranged on water tank water inlet pipe and drainpipe, setting are in water tank
The foam stabiliser of lower part is added mouth and is arranged on water tank for foam stabiliser and water to be mixed to equal blender, institute
The water inlet for stating water pump is connected with the drainpipe being arranged on water tank.
Further, the copper foil volume is made by the following method:
1) selection obverse and reverse sides roughness is in Ra0.025 copper foils below, using vacuum coated mode at the copper foil back side
It is covered with protective film, then copper foil is placed on spin coater, photoresist is added on the front of copper foil, using spin coater by photoetching
Glue uniformly revolves figure on the front of copper foil;
2) copper foil is dried, the solvent in photoresist is made to escape;
3) miniature air-flow conduit figure is prefabricated in photomask board, copper foil and photomask board are placed on projection aligner
On, projection exposure is carried out to copper foil, it will be in the miniature air-flow conduit pattern transfer to copper foil front on photomask board;
4) copper foil after exposure is put into developer solution, the photoresist being exposed on copper foil is made to be dissolved into developer solution, from
And miniature air-flow conduit figure is manifested on copper foil;
5) circuit board is put into ferric trichloride etching liquid, copper foil is performed etching, it is micro- to be made on copper foil front
Type air-flow conduit;
6) copper foil after etching is put into the photoresist got rid of in sodium hydroxide ethanol solution on copper foil;
7) protective film at the removal copper foil back side;
8) copper foil volume is made in the copper foil for removing protective film on the winder.
Beneficial effects of the present invention:
Nano-bubble generator of the present invention curls into miniflow using the copper foil for being etched with a large amount of miniature air-flow conduits
Pipe, high pressure gas form a large amount of fine air-flow by microflow channels, and fine air-flow is sheared by high-speed rotating blade, in gas
A large amount of nano bubble is formed in liquid mixing sap cavity.The size for the nano bubble that this nano-bubble generator generates can pass through control
The rotating speed control of the diameter and motor of miniature air-flow conduit, the dimensionally stable of the nano bubble of generation, bubbles volume is big, can improve floating
Select efficient and mineral recovery rate high.
Description of the drawings
Fig. 1 is the structural schematic diagram of nano-bubble generator of the present invention;
Fig. 2 is the enlarged diagram in the portions P in Fig. 1.
Specific implementation mode
The invention will be further described with reference to the accompanying drawings and examples.
As shown, the present embodiment nano-bubble generator, includes the shell 1 of upper opening, is set in the middle part of the shell
It is equipped with horizontal baffle 2, shell is separated into upper and lower two parts by the horizontal baffle, and lower part is divided into air cavity 3, and top is divided into gas-liquid
The upper end of mixing chamber 4, the shell is additionally provided with filter plate 5, and the filter plate is for preventing particulate matter from falling into gas-liquid mixed chamber.
The nanometer foam generator further includes several microflow channels 6 being evenly arranged on horizontal baffle, the miniflow
Pipe includes inner tube 61, outer tube 52 and the copper foil volume 63 being arranged between inner tube and outer tube, and the copper foil volume on surface by etching
There is the copper foil of miniature air-flow conduit to be made, the diameter of the miniature air-flow conduit is in 10-30um, the inlet end position of the copper foil volume
In air cavity, the exhaust end of copper foil volume is located in gas-liquid mixed chamber;The both ends of said inner tube are fixedly installed water-sealed bearing 7, institute
Stating setting in water-sealed bearing, by shaft 8, the upper end of the shaft is provided with rolls up the blade 9 that discharge air-flow is sheared to copper foil,
The motor 10 of drive shaft is provided in the air cavity.In the present embodiment, the motor is the height that rotating speed is more than 10000r/min
Speed motor.
The nanometer foam generator further includes the air pump 11 of air being injected into air cavity and to gas-liquid mixed intracavitary water filling
Water pump 12.
The nanometer foam generator further includes water tank 13, is arranged on water tank water inlet pipe 14 and drainpipe 15, setting
Foam stabiliser in water tank lower part is added mouth 16 and is arranged on water tank for foam stabiliser and water to be mixed equal stir
Device 17 is mixed, the water inlet of the water pump is connected with the drainpipe being arranged on water tank.
In the present embodiment, the copper foil volume is made by the following method:
1) selection obverse and reverse sides roughness is in Ra0.025 copper foils below, using vacuum coated mode at the copper foil back side
It is covered with protective film, then copper foil is placed on spin coater, photoresist is added on the front of copper foil, using spin coater by photoetching
Glue uniformly revolves figure on the front of copper foil;The surface of best bright finish can guarantee copper foil, and in follow-up coiling, obverse and reverse sides can be close
Fitting, to form mutually disconnected miniature air-flow conduit.
2) copper foil is dried, the solvent in photoresist is made to escape.
3) miniature air-flow conduit figure is prefabricated in photomask board, copper foil and photomask board are placed on projection aligner
On, projection exposure is carried out to copper foil, it will be in the miniature air-flow conduit pattern transfer to copper foil front on photomask board.
4) copper foil after exposure is put into developer solution, the photoresist being exposed on copper foil is made to be dissolved into developer solution, from
And miniature air-flow conduit figure is manifested on copper foil.
5) circuit board is put into ferric trichloride etching liquid, copper foil is performed etching, it is micro- to be made on copper foil front
Type air-flow conduit.
6) copper foil after etching is put into the photoresist got rid of in sodium hydroxide ethanol solution on copper foil.
7) protective film at the removal copper foil back side.
8) copper foil volume is made in the copper foil for removing protective film on the winder.
It is rolled up using copper foil made of this method, is transferred to the miniature air-flow conduit on photomask board using projection exposure
On copper foil, the width of miniature air-flow conduit can reach nanoscale, while when the depth of miniature air-flow conduit can be etched by controlling
Between controlled, miniature airslide road size control accuracy is high.
The present embodiment nano-bubble generator curls into miniflow using the copper foil for being etched with a large amount of miniature air-flow conduits
Pipe, high pressure gas form a large amount of fine air-flow by microflow channels, and fine air-flow is sheared by high-speed rotating blade, in gas
A large amount of nano bubble is formed in liquid mixing sap cavity, the flotation requirement to Separate Fine-grained Minerals can be met, improve flotation efficiency height and mine
The object rate of recovery is high.
Finally illustrate, the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although with reference to compared with
Good embodiment describes the invention in detail, it will be understood by those of ordinary skill in the art that, it can be to the skill of the present invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the right of invention.
Claims (2)
1. a kind of nano-bubble generator, it is characterised in that:Shell including upper opening is provided with water in the middle part of the shell
Shell is separated into upper and lower two parts by flat partition board, the horizontal baffle, and lower part is divided into air cavity, and top is divided into gas-liquid mixed chamber, institute
The upper end for stating shell is additionally provided with filter plate, and the filter plate is for preventing particulate matter from falling into gas-liquid mixed chamber;
The nanometer foam generator further includes several microflow channels being evenly arranged on horizontal baffle, the miniflow microflow channels
Including inner tube, outer tube and the copper foil volume being arranged between inner tube and outer tube, the copper foil volume is by being etched with miniature gas on surface
The copper foil in chute road is made, and for the diameter of the miniature air-flow conduit in 10-30um, the inlet end of the copper foil volume is located at air cavity
In, the exhaust end of copper foil volume is located in gas-liquid mixed chamber;The both ends of said inner tube are fixedly installed water-sealed bearing, the waterproof axis
Middle setting is held by shaft, the upper end of the shaft is provided with rolls up the blade that discharge air-flow is sheared to copper foil, in the air cavity
It is provided with the motor of drive shaft;
The nanometer foam generator further includes the air pump that air is injected into air cavity and the water pump to gas-liquid mixed intracavitary water filling;
The nanometer foam generator further includes water tank, is arranged on water tank water inlet pipe and drainpipe, setting are in water tank lower part
Foam stabiliser mouth is added and is arranged on water tank for foam stabiliser and water to be mixed to equal blender, the water
The water inlet of pump is connected with the drainpipe being arranged on water tank.
2. nano-bubble generator according to claim 1, it is characterised in that:The copper foil volume is made by the following method
At:
1) selection obverse and reverse sides roughness is covered with using vacuum coated mode at the copper foil back side in Ra0.025 copper foils below
Then copper foil is placed on spin coater by protective film, photoresist is added on the front of copper foil, using spin coater that photoresist is equal
Even rotation figure is on the front of copper foil;
2) copper foil is dried, the solvent in photoresist is made to escape;
3) copper foil and photomask board are placed in projection aligner in photomask board by miniature air-flow conduit figure is prefabricated,
Projection exposure is carried out to copper foil, it will be in the miniature air-flow conduit pattern transfer to copper foil front on photomask board;
4) copper foil after exposure is put into developer solution, the photoresist being exposed on copper foil is made to be dissolved into developer solution, thus
Miniature air-flow conduit figure is manifested on copper foil;
5) circuit board is put into ferric trichloride etching liquid, copper foil is performed etching, to make miniature gas on copper foil front
Chute road;
6) copper foil after etching is put into the photoresist got rid of in sodium hydroxide ethanol solution on copper foil;
7) protective film at the removal copper foil back side;
8) copper foil volume is made in the copper foil for removing protective film on the winder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810469282.8A CN108686838B (en) | 2018-05-16 | 2018-05-16 | Nanometer bubble generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810469282.8A CN108686838B (en) | 2018-05-16 | 2018-05-16 | Nanometer bubble generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108686838A true CN108686838A (en) | 2018-10-23 |
| CN108686838B CN108686838B (en) | 2020-01-10 |
Family
ID=63846353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810469282.8A Expired - Fee Related CN108686838B (en) | 2018-05-16 | 2018-05-16 | Nanometer bubble generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108686838B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112170472A (en) * | 2019-07-02 | 2021-01-05 | 西南科技大学 | Novel emergency remediation technology for heavy metal contaminated soil |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2630837Y (en) * | 2003-08-12 | 2004-08-04 | 上海交通大学 | Apparatus for forming nano air bubble o nmica surface based on alcohol-water substitution |
| JP2007308544A (en) * | 2006-05-17 | 2007-11-29 | Hitachi Ltd | Nano composite material having low dielectric constant and low refractive index |
| CN102010038A (en) * | 2010-12-30 | 2011-04-13 | 波鹰(厦门)科技有限公司 | Nano catalytic electrolysis flocculation device |
| CN102626560A (en) * | 2012-04-24 | 2012-08-08 | 中国科学院力学研究所 | Rotational flow air flotation oil-water separation device and air flotation generator |
| CN202519115U (en) * | 2012-04-19 | 2012-11-07 | 波鹰(厦门)科技有限公司 | Nano-catalysis, electrolysis, flocculation and air-floatation device |
| KR20130112997A (en) * | 2012-04-05 | 2013-10-15 | 충남대학교산학협력단 | Production appararatus of gas-phase hollow nanoparticle using non-metallic template particle and method thereof |
| CN205838609U (en) * | 2016-06-08 | 2016-12-28 | 岳阳长岭设备研究所有限公司 | A kind of modified model air floatation machine |
-
2018
- 2018-05-16 CN CN201810469282.8A patent/CN108686838B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2630837Y (en) * | 2003-08-12 | 2004-08-04 | 上海交通大学 | Apparatus for forming nano air bubble o nmica surface based on alcohol-water substitution |
| JP2007308544A (en) * | 2006-05-17 | 2007-11-29 | Hitachi Ltd | Nano composite material having low dielectric constant and low refractive index |
| CN102010038A (en) * | 2010-12-30 | 2011-04-13 | 波鹰(厦门)科技有限公司 | Nano catalytic electrolysis flocculation device |
| KR20130112997A (en) * | 2012-04-05 | 2013-10-15 | 충남대학교산학협력단 | Production appararatus of gas-phase hollow nanoparticle using non-metallic template particle and method thereof |
| CN202519115U (en) * | 2012-04-19 | 2012-11-07 | 波鹰(厦门)科技有限公司 | Nano-catalysis, electrolysis, flocculation and air-floatation device |
| CN102626560A (en) * | 2012-04-24 | 2012-08-08 | 中国科学院力学研究所 | Rotational flow air flotation oil-water separation device and air flotation generator |
| CN205838609U (en) * | 2016-06-08 | 2016-12-28 | 岳阳长岭设备研究所有限公司 | A kind of modified model air floatation machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112170472A (en) * | 2019-07-02 | 2021-01-05 | 西南科技大学 | Novel emergency remediation technology for heavy metal contaminated soil |
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| Publication number | Publication date |
|---|---|
| CN108686838B (en) | 2020-01-10 |
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Granted publication date: 20200110 Termination date: 20200516 |
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