CN2488622Y - Device for producing nano-metallic powder - Google Patents
Device for producing nano-metallic powder Download PDFInfo
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- CN2488622Y CN2488622Y CN 01246486 CN01246486U CN2488622Y CN 2488622 Y CN2488622 Y CN 2488622Y CN 01246486 CN01246486 CN 01246486 CN 01246486 U CN01246486 U CN 01246486U CN 2488622 Y CN2488622 Y CN 2488622Y
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Abstract
The utility model relates to a device for producing nano-metallic particle, which is designed for producing nano-metallic particle with large amount. The utility model is characterized in that upper part of shell lined with high temperature resistant material is provided with a plasma gun, correspondingly lower part has a crucible filled with metal liquid. At the same time, the shell has an opening to be connected to the particle controller, the other exit of the particle controller is connected with a particle colleting machine, the particle collector has a discharging opening and an gas phase venting opening which is respectively connected with the shell and the recycling entrance of the particle controller by the pipeline and the pump. The utility model has the advantages that the structure is simple, the output is high, the particle size is easy to be controlled. The utility model is suitable for promoting and using in industry.
Description
Technical field
The utility model relates to a kind of production nano metal powder device technique field.
Background technology
New material is one of the most active field of current development in science and technology, and key industry developed country is all the emphasis of new material research as scientific and technological progress and economic development in the world.Nano material is because the particle scale microminiaturization, the common material that millimeter or micrometer structure particle constituted during its reaction to light, electricity, mechanical stress was different from exceeds 5 times nanometer copper, the nano ceramics that does not fall broken, strength ratio iron and steel as intensity and exceeds 100 times appearance in succession such as CNT.Granularity is less than the superfine metal material of 100 nanometers, has all size premium properties that material is beyond one's reach, at powder metallurgy, fine chemistry industry, there is wide prospect in fields such as electronic information, the method of producing nano metal powder now mainly contains chemical method and physical method, each advantage and limitation are respectively arranged, chemical method such as electrolysis, the carbonyl thermal decomposition method, water slurry pressurised oxygen reducing process etc., generally can not produce fairly largely, certain contaminative is arranged, the physics method has laser method and plasma method, general transferred-arc plasma method is to operate under higher vacuum, and there is not the particle control device, yield poorly so have, particle is grown up and is not easy, shortcomings such as size distribution is bigger, especially at electron trade such as circuit, needing in the coating of electronic elements is the above metal dust of hundreds of nanometer, to prevent nanoparticle agglomerates, the metal nanoparticle of such range scale adopts chemical method and general laser method to obtain not too easily.In the Chinese patent literature storehouse, concentrate report nano metal particles production method morely, few for the process units report of producing the metal nanoparticle powder in enormous quantities, it as the patent No. 00233180.2 Chinese patent " a kind of process units of nano metal ", it is by the discharge-induced explosion tube, valve, cooler, vacuum blower, conveyance conduit, a separation bin, backwind tube, No. two separation bins, No. three separation bins, packing case, support), console, vavuum pump, motor constitutes, it is characterized in that: the discharge-induced explosion tube is by shell, two end cap constitutes a cylindrical shell, be arranged with A within it, B, C chamber and chamber, top, at B, C is provided with inner casing in the chamber, the middle cooling layer that forms, on the B chamber, be provided with delivery outlet, peep hole, return-air hole, vacuumize the hole, funnel, be provided with charging tray in the A chamber of discharge-induced explosion tube, support, cathode terminal, conduit, charging tray is hubbed on the support, cathode carrier in cathode terminal and the B chamber connects, and conduit is installed on the dividing plate between A chamber and the B chamber; In the B chamber, be provided with cathode carrier, cathode taps, insulator, insulator, positive plate, establish cathode taps on the cathode carrier in the B chamber, distance between positive plate and the cathode taps is adjustable, positive plate is located on the anode conducting post, go up sheathed insulator for one section of the close positive plate of anode conducting post, another section is sealed insulator; Connect the damping discharge frame between the anode conducting post in the C chamber, the arcing distance of damping discharge frame is adjustable, sheathed insulator on the anode conducting post of close incoming call one side in the C chamber; In the chamber, top, be provided with insulator and anode terminal, seal insulator on the anode conducting post that anode terminal was communicated with; The discharge-induced explosion tube places on the support, its delivery outlet and valve join, valve is connected with chimney cooler, the other end of cooler connects conveyance conduit, the conveyance conduit other end is connected with the air admission hole of a separation bin, No. one the separation bin lower end is provided with vacuum packaging box, its upper end is provided with venthole and connects conveyance conduit, the conveyance conduit other end connects the air admission hole that valve connects No. two separation bins again, herewith connect separation bin No. three, the venthole of No. three separation bin upper ends connects valve again, valve is connected with backwind tube again, the other end of backwind tube links to each other with vacuum blower, vacuum blower links to each other with conveyance conduit again, and the other end of conveyance conduit is connected with the return-air hole of discharge-induced explosion tube again, forms the operating path of a circulation.Its shortcoming is the process units more complicated, and the nano particle yardstick of producing distributes than broad, and output is big inadequately etc.
Summary of the invention
The purpose of this utility model with regard to be to provide at above-mentioned prior art present situation a kind of relatively simple for structure, production output is big, the particle size production Nano metal powder device of control easily.
The purpose of this utility model is achieved in that this kind production Nano metal powder device, it is characterized in that being mounted with plasma gun on the top of the housing of high-temperature resistant material of inner lining, the bottom is mounted with the crucible that contains metal liquid accordingly, while housing also opening is connected with particle controller, another outlet of particle controller is connected with particle collector, particle collector has discharging opening and gaseous phase outlet, and gaseous phase outlet is by the loop head of pipeline and pump difference body contact body and particle controller.
Above-mentioned particle controller is a pipeline, is distributed with gas distribution grid in the pipeline, and the loop head of gas distribution grid and particle controller is connected.
Compared with prior art, advantage of the present utility model is to adopt the transferred-arc plasma method, can be pressed onto under 0.5 atmospheric pressure at 1.2 atmosphere and operate, so the metallic vapour evaporation capacity is big, can reach big output, and particle is grown easily, under the particle controller effect, obtain the nano metal powder of narrower particle size distribution, and particle size can reach tens to several thousand nanometers, artificially control, be easy to obtain each type oxide according to feeding the gas difference, nitride and carbide particle, and simple in structure, make easily, be worth in nano metal powder production, applying.
Table 1 is various nano metal powder experimental results
| The experiment number | 1 | 2 | 3 | 4 | 5 |
| Metal | Nickel | Nickel | Nickel | Copper | Aluminium |
| The inlet amount kilogram/hour | 1.1 | 1.8 | 1.8 | 2.4 | 1.5 |
| Plasma power kw | 45 | 55 | 55 | 60 | 50 |
| Plasma gas | N 2 | N 2+20％H 2 | N 2+20％H 2 | Ar+20％H 2 | Ar |
| Operating pressure kPa | 70 | 95 | 95 | 110 | 100 |
| Particle control valve length m | 0.05 | 0.50 | 0.20 | 0.75 | 0.05 |
| Cooldown rate ℃/S | 5100 | 560 | 1500 | 340 | 4000 |
| Specific area m 2/g | 11.13 | 1.36 | 3.40 | 0.49 | 23.39 |
| Average grain diameter nm | 55 | 450 | 180 | 1250 | 95 |
| Size distribution μ m D10 | 0.02 | 0.31 | 0.15 | 0.67 | 0.07 |
| Size distribution μ m D50 | 0.07 | 0.91 | 0.42 | 1.44 | 0.17 |
| Size distribution μ m D90 | 0.15 | 1.68 | 1.06 | 2.28 | 0.49 |
| Size distribution μ m D100 | 0.23 | 2.65 | 1.68 | 3.60 | 0.78 |
Description of drawings
Fig. 1 produces the structure principle chart of Nano metal powder device
Specific implementation method
Below in conjunction with description of drawings embodiment of the present utility model is described in further detail.
Anticipate as shown in the figure, this produces the Nano metal powder device, it has device case 1, liner high temperature resistant composite in the housing 1, make housing 1 inside can tolerate the metal boiling temperature, the top of housing is mounted with plasma gun 3, the bottom is mounted with the crucible 2 formation evaporimeters that contain metal liquid accordingly, when plasma gun 3 work, produce and shift plasma arcs 8, make metal vaporization evaporation, in housing 1, produce steam, housing middle and upper part also opening is connected with particle controller 5, control the particle growth, reach the yardstick that people wish, here particle controller 5 adopts a hollow pipeline, be distributed with a plurality of gas distribution grids in the pipeline successively, the loop head of gas distribution grid and particle controller 5 is connected, the metallic vapour that is evaporated from housing is subjected to the low gas excitation of temperature in particle controller, the cohesion of catching a cold, so particle can constantly be grown up, so by the adjustments of gas temperature, can control the nano particle yardstick to a certain extent, particle controller 5 another outlets are connected with particle collector 6, discharging opening is arranged at particle collector 6 bottoms, and the nano metal particles that meets our demand is from deriving here, and particle collector 6 tops are gaseous phase outlets, this exports the loop head of distinguishing body contact bodies 1 and particle controller 5 by pipeline and pump 7 mutually gas, gas circulation is used, also be provided with the metal charge door, connect metal solid charger 4 with convenient reinforced on housing 1 top.In order to cool off, housing 1 and particle controller 5, particle collector 6 outsides are distributed with the pipeline of logical recirculated cooling water.
Claims (4)
1, a kind of production Nano metal powder device, the top that it is characterized in that the housing (1) at high-temperature resistant material of inner lining is mounted with plasma gun (3), the bottom is mounted with the crucible (2) that contains metal liquid accordingly, while housing also opening is connected with particle controller (5), another outlet of particle controller is connected with particle collector (6), particle collector has discharging opening and gaseous phase outlet, and gaseous phase outlet is by the loop head of pipeline and pump (7) difference body contact body and particle controller.
2, device according to claim 1 is characterized in that described particle controller (5) is a pipeline, is distributed with gas distribution grid in the pipeline, and the loop head of gas distribution grid and particle controller is connected.
3, device according to claim 1 is characterized in that described housing (1) and particle controller (5), particle collector (6) outside are distributed with the pipeline of logical recirculated cooling water.
4, device according to claim 1 is characterized in that described housing (1) is provided with the metal charge door and is connected with metal solid charger (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01246486 CN2488622Y (en) | 2001-07-11 | 2001-07-11 | Device for producing nano-metallic powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01246486 CN2488622Y (en) | 2001-07-11 | 2001-07-11 | Device for producing nano-metallic powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2488622Y true CN2488622Y (en) | 2002-05-01 |
Family
ID=33657500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01246486 Expired - Lifetime CN2488622Y (en) | 2001-07-11 | 2001-07-11 | Device for producing nano-metallic powder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2488622Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102174914A (en) * | 2011-03-10 | 2011-09-07 | 西北工业大学 | Test device for studying distribution of plume condensed-phase particles of spray pipe |
| CN104588670A (en) * | 2014-12-30 | 2015-05-06 | 宁波广博纳米新材料股份有限公司 | Preparation method of nano-grade Mg-Y-Ni hydrogen storage alloy powder |
-
2001
- 2001-07-11 CN CN 01246486 patent/CN2488622Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102174914A (en) * | 2011-03-10 | 2011-09-07 | 西北工业大学 | Test device for studying distribution of plume condensed-phase particles of spray pipe |
| CN104588670A (en) * | 2014-12-30 | 2015-05-06 | 宁波广博纳米新材料股份有限公司 | Preparation method of nano-grade Mg-Y-Ni hydrogen storage alloy powder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20110711 Granted publication date: 20020501 |