CN2629878Y - Nano metal powder producing apparatus - Google Patents
Nano metal powder producing apparatus Download PDFInfo
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- CN2629878Y CN2629878Y CN 03256047 CN03256047U CN2629878Y CN 2629878 Y CN2629878 Y CN 2629878Y CN 03256047 CN03256047 CN 03256047 CN 03256047 U CN03256047 U CN 03256047U CN 2629878 Y CN2629878 Y CN 2629878Y
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- plasma gun
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- metal powder
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Abstract
The utility model relates to a device protecting the globular nanometer meta powder. Prior production device needs the high-temperature-resistant crucible and the high-temperature-resistant material and thereby the production cost is high; moreover, the plasma gun electrode and the crucible can be replaced only after the temperature in the housing reduces to the indoor temperature so that the production period is limited, influencing the production efficiency. The utility model comprises a reaction vessel and a plasma gun arranged in the upper part and is characterized in that the plasma gun is non-transferred arc and provided with an axial passage therein; the reaction vessel is provided with a cooling jacket; the lower part of the reaction vessel is provided with a gas inlet and the upper part of the sidewall is provided with a power discharging port near the outlet of the plasma gun; and the reaction kettle and a filtering collector form an internally-communicated inertia gas circulation loop through the pipes. The utility model has a simple structure and is easy to control easy and the production cost is low. During the production, brittle articles like the electrode on the plasma gun can be replaced at any time, thereby greatly extending the production period and improving the production efficiency.
Description
Technical field
The utility model relates to a kind of device of producing the ball shaped nano metal powder.
Background technology
Ultrafine powder (comprising nanometer, sub-micron, micron) production technology is along with a development of science and technology and new technology forming in modern age, it is the important component part of material science, all have crucial meaning on theoretical Research And Engineering is used, ultrafine powder all is widely used in fields such as powder metallurgy, fine chemistry industry, electronic information.The method of producing nano-powder at present mainly contains chemical method and physical method, and physical method has laser composite algorithm, blasting, plasma method etc.The patent No. is that the utility model patent of ZL 01246486.4 discloses a kind of production Nano metal powder device, it adopts and shifts the camber plasma method, plasma gun (transfer camber) is settled on the top that is characterised in that the housing of high-temperature resistant material of inner lining, the bottom is mounted with the crucible that contains metal liquid, while housing also opening connects particle controller, and another outlet of particle controller is connected with particle collector.The shortcoming of above-mentioned process units is: the crucible of exotic material and the exotic material that is lining in the housing need higher cost; Crucible is at high temperature worked certain service life, need regularly change crucible, has increased production cost; Need wait the temperature in the housing to drop to room temperature when the electrode of replacing plasma gun and crucible, make the production cycle be subjected to certain limitation, influence production efficiency.
The utility model content
Technical problem to be solved in the utility model is the defective that overcomes above-mentioned prior art, and a kind of ball shaped nano metal powder process units is provided, and crucible and exotic material that it need not special material have reduced production cost; Can change the electrode of plasma gun at any time, prolong the production cycle.
The technical solution of the utility model is achieved in that equipment for preparing nano metal powder, comprises reactor and the plasma gun that is located at its top, it is characterized in that described plasma gun is the untransferable arc type, is provided with axial passage in it; Described reactor is provided with cooling jacket, and reactor sidewall below has gas feed, and there is the meal outlet in close plasma gun exit the sidewall top, and reactor and filters gatherer forms interior logical inert gas by pipe closed circuit.Micron-sized powder arrives untransferable arc by the axial passage of plasma gun, because temperature is up to degree up to ten thousand in the electric arc, and different electric currents changes Arc Temperature, the crystal reorganization can take place in the particle of this moment when the electric arc of process different temperatures, because of being subjected to capillary effect to make powder become sphere, run into the cold air (inert gas) that enters from gas feed and form crystalline nucleation, this process can be described as " gasification is poly-cold ", by gas metal powder is taken out of reactor then and carry out gas solid separation in filtering gatherer.Except that electric arc place high temperature, other is under the lower temperature, as long as stop plasma gun work, just can change the electrode of plasma gun, has prolonged the production cycle, has improved production efficiency in the reactor.
Described equipment for preparing nano metal powder, the import of filtering gatherer communicates with the meal outlet of reactor by a flour extraction pipe, be serially connected with blower fan, heat exchanger and surge tank successively between the gaseous phase outlet of filtration gatherer and the gas feed of reactor, be provided with the cold air carrier pipe between the outlet of heat exchanger and the flour extraction pipe, the cold air that comes out from the cold air carrier pipe is fully cooled off metal powder.
Described equipment for preparing nano metal powder, the plasma gun upper end is connected to a powder charger, and the outlet of this powder charger communicates with axial passage, and the plasma gun below is provided with the residue that places in the reactor and holds bucket.
The utility model is simple in structure, control is easy, has following beneficial effect: 1) need not crucible and special insulation material, production cost is low; 2) can change easily-consumed products such as electrode on the plasma gun in process of production at any time, prolong the production cycle greatlyyer, improve production efficiency; 3) raw material makes its crystal reorganization by of short duration untransferable arc, obtains the nano-powder of certain particle diameter, this diameter of particle narrowly distributing, degree of crystallinity height, and glomeration shape; 4) voltage, electric current, charging rate, the air velocity by the control plasma gun can obtain the nanometre metal powder of different-grain diameter.
The utility model is described in further detail below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
As shown in the figure, equipment for preparing nano metal powder comprise reactor 1, be located at its top untransferable arc type plasma gun 2, filter gatherer 7, be serially connected in blower fan 9, heat exchanger 10 and surge tank 11 between the gas feed 5 of the gaseous phase outlet that filters gatherer 7 and reactor successively.Establish axial passage 3 in the plasma gun 2, the import department of passage 3 connects powder charger 13, and the outlet of this powder charger 13 communicates with axial passage 3, and plasma gun 2 belows are provided with the residue that places in the reactor 1 and hold bucket 14.Reactor 1 is provided with cooling jacket 4, and the meal outlet 6 of reactor communicates with the import of filtering gatherer 7 by flour extraction pipe 8, is provided with cold air carrier pipe 12 between the outlet of heat exchanger 10 and the flour extraction pipe 8.
Production process is as follows: logical recirculated cooling water in the cooling jacket of reactor, open the powder charger, micron order (2-20um) powder in it passes axial passage by inert gas (process gas), be sent to non-transferred arc 15 places that plasma gun forms, because temperature is up to degree up to ten thousand in the electric arc, change current value, different electric currents changes Arc Temperature, the crystal reorganization can take place in the particle of this moment when the electric arc of process different temperatures, because of being subjected to capillary effect to make powder become sphere, run into the cold air that enters from inert gas import and form crystalline nucleation, by inert gas particle is taken out of reactor from meal outlet then, arrive by the cooling of the cold air in flour extraction pipe back and filter gatherer.In filtering gatherer gas-solid is separated, the gas feed that the gas that comes out from the gaseous phase outlet that filters gatherer is back to reactor after by blower fan, heat exchanger and surge tank recycles.The size by regulating arc current and voltage and the speed of gas can obtain the particle of different scale, per hour for example advance 3 kilograms of powder speed, voltage 160V, electric current 600A, 20 cubes of gas velocities per hour, the finished powder average grain diameter be 400nm.
Claims (3)
1, equipment for preparing nano metal powder comprises reactor (1) and is located at the plasma gun (2) on its top, it is characterized in that described plasma gun (2) is the untransferable arc type, is provided with axial passage (3) in it; Described reactor (1) is provided with cooling jacket (4), reactor sidewall below has gas feed (5), there is the meal outlet (6) in close plasma gun exit the sidewall top, and reactor (1) and filters gatherer (7) forms interior logical inert gas by pipe closed circuit.
2, equipment for preparing nano metal powder according to claim 1, the import that it is characterized in that described filtration gatherer (7) communicates with the meal outlet (6) of reactor by a flour extraction pipe (8), be serially connected with blower fan (9), heat exchanger (10) and surge tank (11) successively between the gaseous phase outlet of filtration gatherer (7) and the gas feed (5) of reactor, be provided with cold air carrier pipe (12) between the outlet of heat exchanger (10) and the flour extraction pipe (8).
3, equipment for preparing nano metal powder according to claim 1 and 2, it is characterized in that described plasma gun (2) upper end is connected to a powder charger (13), the outlet of this powder charger (13) communicates with axial passage (3), and plasma gun (2) below is provided with the residue that places in the reactor (1) and holds bucket (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03256047 CN2629878Y (en) | 2003-07-25 | 2003-07-25 | Nano metal powder producing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03256047 CN2629878Y (en) | 2003-07-25 | 2003-07-25 | Nano metal powder producing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2629878Y true CN2629878Y (en) | 2004-08-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03256047 Expired - Fee Related CN2629878Y (en) | 2003-07-25 | 2003-07-25 | Nano metal powder producing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2629878Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101927352A (en) * | 2010-09-21 | 2010-12-29 | 李立明 | Novel technology for continuously producing nano powder by using ultra-high temperature plasma and preparation process thereof |
| CN102416308A (en) * | 2011-09-29 | 2012-04-18 | 北京航空航天大学 | Quenching plasma jet reactor with lateral diversion and preparation method thereof |
| CN102528065A (en) * | 2012-03-02 | 2012-07-04 | 常熟市碧溪新城特种机械厂 | Production device for nano metal powder |
| CN103128302A (en) * | 2011-12-01 | 2013-06-05 | 昭荣化学工业株式会社 | Plasma device for manufacturing metal powder |
| CN104722764A (en) * | 2015-03-11 | 2015-06-24 | 江永斌 | Cyclically-cooled metal powder evaporation preparation device |
| CN105252012A (en) * | 2015-11-18 | 2016-01-20 | 长春工业大学 | Device and method for continuously manufacturing metal powder through multi-electrode plasma arcs |
| CN105458277A (en) * | 2015-12-19 | 2016-04-06 | 江永斌 | Device and method for producing high-purity metal powder through multi-head non-transferred arc plasma polymerization |
| CN105817634A (en) * | 2016-05-24 | 2016-08-03 | 施嘉豪 | Device for preparing nanometer and micrometer particle size metal powder through non-transferred arc plasma torch |
| CN108788172A (en) * | 2018-06-26 | 2018-11-13 | 西安欧中材料科技有限公司 | A kind of equipment preparing ultra-fine pure metal powder |
| CN110000394A (en) * | 2019-05-29 | 2019-07-12 | 马榕彬 | A kind of metal nano powder production system |
| US11000868B2 (en) | 2016-09-07 | 2021-05-11 | Alan W. Burgess | High velocity spray torch for spraying internal surfaces |
-
2003
- 2003-07-25 CN CN 03256047 patent/CN2629878Y/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101927352A (en) * | 2010-09-21 | 2010-12-29 | 李立明 | Novel technology for continuously producing nano powder by using ultra-high temperature plasma and preparation process thereof |
| CN102416308A (en) * | 2011-09-29 | 2012-04-18 | 北京航空航天大学 | Quenching plasma jet reactor with lateral diversion and preparation method thereof |
| CN102416308B (en) * | 2011-09-29 | 2013-11-27 | 北京航空航天大学 | Quenching plasma jet reactor with lateral diversion and preparation method thereof |
| CN103128302A (en) * | 2011-12-01 | 2013-06-05 | 昭荣化学工业株式会社 | Plasma device for manufacturing metal powder |
| CN103128302B (en) * | 2011-12-01 | 2015-04-29 | 昭荣化学工业株式会社 | Plasma device for manufacturing metal powder |
| CN102528065A (en) * | 2012-03-02 | 2012-07-04 | 常熟市碧溪新城特种机械厂 | Production device for nano metal powder |
| CN104722764A (en) * | 2015-03-11 | 2015-06-24 | 江永斌 | Cyclically-cooled metal powder evaporation preparation device |
| CN105252012A (en) * | 2015-11-18 | 2016-01-20 | 长春工业大学 | Device and method for continuously manufacturing metal powder through multi-electrode plasma arcs |
| CN105458277A (en) * | 2015-12-19 | 2016-04-06 | 江永斌 | Device and method for producing high-purity metal powder through multi-head non-transferred arc plasma polymerization |
| CN105817634A (en) * | 2016-05-24 | 2016-08-03 | 施嘉豪 | Device for preparing nanometer and micrometer particle size metal powder through non-transferred arc plasma torch |
| US11000868B2 (en) | 2016-09-07 | 2021-05-11 | Alan W. Burgess | High velocity spray torch for spraying internal surfaces |
| US11684936B2 (en) | 2016-09-07 | 2023-06-27 | Alan W. Burgess | High velocity spray torch for spraying internal surfaces |
| CN108788172A (en) * | 2018-06-26 | 2018-11-13 | 西安欧中材料科技有限公司 | A kind of equipment preparing ultra-fine pure metal powder |
| CN110000394A (en) * | 2019-05-29 | 2019-07-12 | 马榕彬 | A kind of metal nano powder production system |
| CN110000394B (en) * | 2019-05-29 | 2023-10-17 | 纳华(宁波)新材料科技有限公司 | Metal nano powder production system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |