CN102989354B - Device for dispersing nano material in scale via liquid state turbulent flow instant high-pressure cutting method - Google Patents
Device for dispersing nano material in scale via liquid state turbulent flow instant high-pressure cutting method Download PDFInfo
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- CN102989354B CN102989354B CN201210490984.7A CN201210490984A CN102989354B CN 102989354 B CN102989354 B CN 102989354B CN 201210490984 A CN201210490984 A CN 201210490984A CN 102989354 B CN102989354 B CN 102989354B
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Abstract
The invention discloses a device for dispersing nano material in scale via a liquid state turbulent flow instant high-pressure cutting method. The device comprises a feeding opening, a turbulent flow generating chamber, a high-pressure turbulent flow flowing tank and a discharging opening; flow with processed material enters the front end of the feeding opening, and the rear end of the feeding opening is connected to one side of the turbulent flow generating chamber; and the front end of the high-pressure turbulent flow flowing tank is connected to the other side of the turbulent flow generating chamber, and the rear end of the high-pressure turbulent flow flowing tank is connected to the discharging opening. The invention is practical and effective; the device is stable and reliable; and the nanostructure unit suspension of a plurality of materials prepared by the invention is expected to be applied to a plurality of fields such as industry, agriculture and the like.
Description
Technical field
the present invention relates to nano material processing unit (plant) field, be specially a kind of liquid turbulent flow instantaneous pressure shearing method scale dispersing nanometer material apparatus.
Background technology
The special nano effect that nano material has due to nano structured unit (comprising a little, spool, band) wherein, compared with common material, has more excellent performance, more gets more and more people's extensive concerning and apply.But in actual applications, the reunion of nano structured unit has had a strong impact on the performance of nano effect, the excellent properties of nano material has been made to be difficult in the application keep.Thus, developing effective nano material dispersion technology is nano material one of key technology needing solution badly in actual applications.Existing nano material dispersion technology mainly contains ultrasonic, ball milling and high speed shear etc.Wherein, ultrasonic and ball milling has played certain effect in laboratory research; but; in the nano material dispersion application of scale; it is less to there is output energy in ultrasonic technique; output energy distributions is uneven, and ball grinding technique also exists the shortcomings such as energy consumption is higher, is difficult to further be applied and promote.Although high speed shear dispersion technology can form certain scale, however when eliminating the hard aggregation (bond energy is greater than 100 kJ/mol) of nano structured unit poor effect, energy consumption is also very large simultaneously.In addition, above three kinds of dispersion technologies can't solve the problem of nano structured unit secondary agglomeration.Therefore, a kind of practicality, reliable, economic, effective technology design concrete physical unit to prepare mono-dispersed nano material and the secondary agglomeration tool of nano structured unit wherein can be prevented to be of great significance simultaneously is probed into.
Summary of the invention
The object of this invention is to provide a kind of liquid turbulent flow instantaneous pressure shearing method scale dispersing nanometer material apparatus, to solve prior art nano material dispersion technology Problems existing.
In order to achieve the above object, the technical solution adopted in the present invention is:
Liquid turbulent flow instantaneous pressure shearing method scale dispersing nanometer material apparatus, it is characterized in that: the charging aperture including concentrically axle word order, turbulent flow generation chamber, high pressure turbulent flow chute, discharging opening, described charging aperture front end enters for the fluid with machined material, charging aperture end is communicated to turbulent flow generation chamber side, high pressure turbulent flow chute front end is communicated to turbulent flow generation chamber opposite side, high pressure turbulent flow chute end is communicated to discharging opening, by charging aperture, turbulent flow generation chamber, high pressure turbulent flow chute, discharging opening forms high pressure turbulence dispersion chamber jointly, wherein the long-pending turbulent flow generation chamber radial section that is less than of charging aperture radial section amasss, the long-pending charging aperture radial section that is less than of high pressure turbulent flow chute radial section amasss.
Described liquid turbulent flow instantaneous pressure shearing method scale dispersing nanometer material apparatus, is characterized in that: described charging aperture, turbulent flow generation chamber, high pressure turbulent flow chute, discharging opening outer wall materials are diamond.
Described liquid turbulent flow instantaneous pressure shearing method scale dispersing nanometer material apparatus, is characterized in that: the radial section of described high pressure turbulent flow chute is long-pending is less than or equal to 1 square millimeter.
Described liquid turbulent flow instantaneous pressure shearing method scale dispersing nanometer material apparatus; it is characterized in that: described high pressure turbulent flow chute is overall or that the connection of multistage one word is formed rectilinear chute; or be the bent chute of middle one or many bending, or be the branch shape chute of total separation structure.
Described liquid turbulent flow instantaneous pressure shearing method scale dispersing nanometer material apparatus; it is characterized in that: multiple high pressure turbulence dispersion chamber can mutual cascade structure in series; in cascade structure, the long-pending adjacent foregoing stage high pressure turbulence dispersion chamber mesohigh turbulent flow chute radial section that is less than of rear stage high pressure turbulence dispersion chamber mesohigh turbulent flow chute radial section amasss.
The present invention makes plant-scale supplied materials under the instantaneous pressure that device is formed shears the effect of liquid turbulent flow, the suspension that range scale is formed at the dispersed nano construction unit of Nano grade (being evenly distributed on about 40 nm) can be formed, achieve the nano structured unit comprised in prepared suspension nano material and can keep monodispersed state for a long time, can not secondary agglomeration be formed.Practicability and effectiveness of the present invention, equipment is reliable and stable, and the nano structured unit suspension of the multiple material prepared by the present invention is expected to and is applied in many-sided field such as industrial, agriculture.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Structural representation when Fig. 2 is bent high pressure turbulent flow chute of the present invention.
Structural representation when Fig. 3 is branch shape high pressure turbulent flow chute of the present invention.
Structural representation when Fig. 4 is the linear high pressure turbulent flow chute of multistage of the present invention formation.
Fig. 5 is that the titanium nitride nano particle SEM before and after the liquid turbulent shear of instantaneous pressure of the present invention contrasts photo.
Fig. 6 is the TEM photo of the titanium nitride nano particle after the liquid turbulent shear of instantaneous pressure of the present invention.
Fig. 7 is the grain size distribution of the titanium nitride nano particle after the liquid turbulent shear of instantaneous pressure of the present invention.
Detailed description of the invention
As Figure 1-Figure 4.Liquid turbulent flow instantaneous pressure shearing method scale dispersing nanometer material apparatus, include the charging aperture 1 of concentrically axle word order, turbulent flow generation chamber 2, high pressure turbulent flow chute 3, discharging opening 4, charging aperture 1 front end enters for the fluid with machined material, charging aperture 1 end is communicated to turbulent flow generation chamber 2 side, high pressure turbulent flow chute 3 front end is communicated to turbulent flow generation chamber 2 opposite side, high pressure turbulent flow chute 3 end is communicated to discharging opening 4, by charging aperture 1, turbulent flow generation chamber 2, high pressure turbulent flow chute 3, discharging opening 4 forms high pressure turbulence dispersion chamber jointly, wherein long-pending turbulent flow generation chamber 2 radial section that is less than of charging aperture 1 radial section amasss, long-pending charging aperture 1 radial section that is less than of high pressure turbulent flow chute 3 radial section amasss.Charging aperture 1, turbulent flow generation chamber 2, high pressure turbulent flow chute 3, discharging opening 4 outer wall materials are diamond.
The radial section of high pressure turbulent flow chute 3 is long-pending is less than or equal to 1 square millimeter.
High pressure turbulent flow chute 3 is overall or that the connection of multistage one word is formed rectilinear chute, or is the bent chute of middle one or many bending, or is the branch shape chute of total separation structure.
Multiple high pressure turbulence dispersion chamber can mutual cascade structure in series, and in cascade structure, long-pending adjacent foregoing stage high pressure turbulence dispersion chamber mesohigh turbulent flow chute 3 radial section that is less than of rear stage high pressure turbulence dispersion chamber mesohigh turbulent flow chute 3 radial section amasss.
Mesohigh turbulence dispersion chamber of the present invention is combined by the cavity geometry structure of uniqueness and fluid passage, usually connect a radial section by a charging aperture and amass relatively larger turbulent flow generation chamber, turbulent flow generation chamber connects again the very little high pressure turbulent flow chute of a sectional area, finally connects the discharging opening of machined material and forms.The radial section of high pressure turbulent flow chute amasss and not only amasss much smaller than the radial section of turbulent flow generation chamber, is also less than charging aperture radial section simultaneously and amasss, be usually not more than 1 square millimeter.The material in high pressure turbulence dispersion chamber uses diamond to make.When machined material needs less yardstick, can be connected more than 2 grades in high pressure turbulence dispersion chamber of the present invention and use, now from fluid approach axis, the high pressure turbulent flow chute radial section of rear stage amass should process be less than adjacent foregoing stage high pressure turbulent flow chute radial section amass.Workflow of the present invention is as follows: under the effect of circuit control device, machined material is along with fluid (as the dispersant such as water or organic solvent), through the supercharging of fluid pressurized part institute, be admitted to the charging aperture in high pressure turbulence dispersion chamber, enter turbulent flow generation chamber, enter radial section amass larger turbulent flow generation chamber because fluid amasss less chute from radial section under stress, localized liquid pressure drop is low to moderate liquid gasification pressure, liquid generating gasification, form turbulent flow, when continuing to enter into radial section and amassing very little high pressure turbulent flow chute, further define instantaneous pressure and shear liquid turbulent flow, the hard aggregation of the aggregate unit comprised in the suspension fluid of aggregate is opened, prepare mono-dispersed nano construction unit suspension, nano unit suspension can be made to keep monodispersed state to reach 6 months.
It is worthy of note, in dispersion process, it is huge that instantaneous pressure shears liquid turbulent flow energy, very harsh requirement is proposed to the design of the shape and structure of cavity and material practicality, common material is difficult to the requirement realizing long-time continuous and effective running under instantaneous pressure shears liquid turbulent flow, the present invention is by unique cavity body structure and flowpath form design, novelty have employed the material of diamond as high pressure turbulence dispersion room, the problem of equipment actual life and stability in the harsh environments under the liquid turbulent flow long term of high shear that efficiently solves is (as adopted carborundum or silicon nitride as cavity material, its useful life only has 6 months, and when adopting diamond, through actual Using statistics, practically continuously within 6 years, functional deterioration problem can be there will not be).
As shown in Figure 5-Figure 7.The present invention can realize the preparation to the multiple inorganic nano material comprising silicon nitride, aluminium nitride, boron nitride, carborundum, titanium carbide, zirconium carbide etc., has apply very widely in many-sided fields such as industry and agriculturals.Titanium nitride aggregate as being several microns to tens microns by 4 kilograms of range scales adds the ethylene glycol of 185 kilograms, ten kilograms of anion surfactant styrene and KH550 silane coupler totally 200 kilograms under 1.5 atmospheric pressure, enter high pressure turbulence dispersion chamber, the effect of liquid turbulent flow is sheared through 1 hour instantaneous pressure, obtain hard aggregation-free, prevent the suspension of secondary agglomeration nanoscale high dispersive, its domain size distribution is narrower.This suspension can suspend nearly 6 months at room temperature shady place, occurs without precipitation.And for example the imvite of 20g being joined 50g breaks in solution that larynx crossbow and 300 ml waters configure, after the processing of this dispersing apparatus, pesticide can be inserted into the interlayer of nano imvite, avoid its rapid evaporation under Yanguan Pass, achieve slow releasing, improve insecticide efficiency, on the original basis (one week 3 times) extend the desinsection cycle and reach 15 days, save the use cost of agricultural chemicals and the impact on environment.
Claims (4)
1. liquid turbulent flow instantaneous pressure shearing method scale dispersing nanometer material apparatus, it is characterized in that: the charging aperture including concentrically axle word order, turbulent flow generation chamber, high pressure turbulent flow chute, discharging opening, described charging aperture front end enters for the fluid with machined material, charging aperture end is communicated to turbulent flow generation chamber side, high pressure turbulent flow chute front end is communicated to turbulent flow generation chamber opposite side, high pressure turbulent flow chute end is communicated to discharging opening, by charging aperture, turbulent flow generation chamber, high pressure turbulent flow chute, discharging opening forms high pressure turbulence dispersion chamber jointly, wherein the long-pending turbulent flow generation chamber radial section that is less than of charging aperture radial section amasss, the long-pending charging aperture radial section that is less than of high pressure turbulent flow chute radial section amasss, the mutual cascade structure in series of multiple high pressure turbulence dispersion chambers, in cascade structure, the long-pending adjacent foregoing stage high pressure turbulence dispersion chamber mesohigh turbulent flow chute radial section that is less than of rear stage high pressure turbulence dispersion chamber mesohigh turbulent flow chute radial section amasss.
2. liquid turbulent flow instantaneous pressure shearing method scale dispersing nanometer material apparatus according to claim 1, is characterized in that: described charging aperture, turbulent flow generation chamber, high pressure turbulent flow chute, discharging opening outer wall materials are diamond.
3. liquid turbulent flow instantaneous pressure shearing method scale dispersing nanometer material apparatus according to claim 1, is characterized in that: the radial section of described high pressure turbulent flow chute is long-pending is less than or equal to 1 square millimeter.
4. liquid turbulent flow instantaneous pressure shearing method scale dispersing nanometer material apparatus according to claim 1; it is characterized in that: described high pressure turbulent flow chute is overall or that the connection of multistage one word is formed rectilinear chute; or be the bent chute of middle one or many bending, or be the branch shape chute of total separation structure.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1336427A1 (en) * | 2002-02-18 | 2003-08-20 | Kyowa Vacuum Engineering Co., Ltd. | Method and apparatus for preparing slurry from starting materials |
| CN1724133A (en) * | 2004-07-13 | 2006-01-25 | 安藤成雄 | High pressure homogenizing apparatus and method thereof |
| JP2010274243A (en) * | 2009-06-01 | 2010-12-09 | Shibaura Mechatronics Corp | Micro bubble generation apparatus and micro bubble generating method |
| CN101961616A (en) * | 2010-10-20 | 2011-02-02 | 合肥开尔纳米能源科技股份有限公司 | Liquid phase dispersion device of nano-powder material |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1336427A1 (en) * | 2002-02-18 | 2003-08-20 | Kyowa Vacuum Engineering Co., Ltd. | Method and apparatus for preparing slurry from starting materials |
| CN1724133A (en) * | 2004-07-13 | 2006-01-25 | 安藤成雄 | High pressure homogenizing apparatus and method thereof |
| JP2010274243A (en) * | 2009-06-01 | 2010-12-09 | Shibaura Mechatronics Corp | Micro bubble generation apparatus and micro bubble generating method |
| CN101961616A (en) * | 2010-10-20 | 2011-02-02 | 合肥开尔纳米能源科技股份有限公司 | Liquid phase dispersion device of nano-powder material |
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