CN201529772U - Production device of high-pure nanometer metal ultrafine powder - Google Patents
Production device of high-pure nanometer metal ultrafine powder Download PDFInfo
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- CN201529772U CN201529772U CN2009202454944U CN200920245494U CN201529772U CN 201529772 U CN201529772 U CN 201529772U CN 2009202454944 U CN2009202454944 U CN 2009202454944U CN 200920245494 U CN200920245494 U CN 200920245494U CN 201529772 U CN201529772 U CN 201529772U
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Abstract
The utility model discloses a production device of high-pure nanometer metal ultrafine powder. The production device comprises a raw material conveying and preprocessing device, a supersonic nozzle, a high-temperature liquid mist combustion quick reducer, an inactive gas quick condensing device, a multi-grade metal ultrafine powder grading device and a powder collecting device, wherein the raw material conveying and preprocessing device, the high-temperature liquid mist combustion quick reducer, the inactive gas quick condensing device and the multi-grade metal ultrafine powder grading device are internally communicated in turn to form a production circulation channel for processing raw material to be processed, and the tail portion of the production circulation channel is connected with a draught fan which is communicated with the inside of the production circulation channel. The production device has reasonable design, is suitable for wide raw material, is combined with high pressure rich oxygen to directly oxygenize and burn and generate metal liquid mist, forms high temperature reduction atmosphere by hydrocarbon fuel, finally generates spherical nanometer metal ultrafine powder, has short production flow path and high production efficiency, and can achieve continuous industrial production.
Description
Technical field
The utility model belongs to the nano metal powder technical field of material, especially relates to a kind of production equipment of high-purity nano-metal ultrafine powder.
Background technology
In recent years, along with the develop rapidly of field of new, the sharp increase of nano-metal ultrafine powder demand, the quality and the performance requirement of tackling nano-metal ultrafine powder mutually also improve day by day.With the molybdenum is example, its metal and alloy material have that fusing point height, hardness height, intensity are big, wearability and characteristics such as heat-conductivity conducting is good, the coefficient of expansion is little, corrosion resisting property is good, be widely used in technical fields such as electronics, chemical industry, metallurgy, national defence and aerospace industry, representative as liquid crystal display transparency conducting layer, solar cell, glass heat insulating coating, metal and non metallic decorative coating, surperficial superhard wear coating, corrosion-resistant finishes etc.
Above-mentioned ultra micro preparation method of molybdenum mainly contains following three kinds: the first, use the ammonium paramolybdate activation reduction method, this method is a raw material with the ammonium paramolybdate that adds some ammonium chloride, makes ultrafine molybdenum powder through pure hydrogen reduction once at low temperatures.Compare with conventional method, its technology is simpler, and reduction temperature is low, reduces about 200～300 ℃ than traditional handicraft.The molybdenum powder that obtains, its particle mean size is 0.1 μ m, and powder has good sintering character.Because chloride utilizes hydrogen to carry out reduction reaction, can produce poisonous chlorine, hydrogen chloride in the stove, so also there is the problem of the high equipment such as burn into leakage of process units.The second, adopting nanometer molybdenum trioxide fiber is raw material, reduces under hydrogen atmosphere, obtains superfine metal molybdenum powder.Three, adopt nanoscale eight molybdic acids by being raw material, carry out the reverse reduction reaction of hydrogen under enclosed environment twice, by the furnace temperature and the hydrogen flowing quantity of control reduction for the first time, reduction for the second time, the nano-scale molybdenum powder of preparing is purple, its particle diameter is at 55～92nm, and purity is all more than 99.80%.
Owing to use nano material to be raw material, hydrogen is as reducing gas, thereby existing above-mentioned three kinds of production methods all are expensive production methods.
In sum, existing method of producing nano-metal ultrafine powder all must use nano material to be raw material, use hydrogen as reducing gas, thereby not only raw material is restricted, and the production cost height.
The utility model content
Technical problem to be solved in the utility model is at above-mentioned deficiency of the prior art, a kind of production equipment of high-purity nano-metal ultrafine powder is provided, its reasonable in design, applicable raw materials is extensive and production procedure is short, production efficiency is high, can realize continuous industry production.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of production equipment of high-purity nano-metal ultrafine powder, it is characterized in that: comprise processed raw material is carried and pretreated raw material conveying and pretreatment unit, be arranged on that raw material is carried and pretreatment unit is inner and the metal oxide that raw material obtains be atomized into the superonic flow nozzzle of metal oxide liquid mist after preliminary treatment, charging aperture and raw material are carried and the discharging opening of pretreatment unit joins and described metal oxide liquid mist high temperature reduction can be reacted into the high temperature spray combustion fast restore device of ball shaped nano metal ultrafine powder, described ball shaped nano metal ultrafine powder is carried out rapid condensation and can prevent effectively that the ball shaped nano metal ultrafine powder that generates from the inert gas rapid condensation device of oxidation further taking place, with multistage metal ultrafine powder grading plant and a plurality of powder gathering-device that is laid in described multistage metal ultrafine powder grading plant below respectively and joins with described multistage metal ultrafine powder grading plant below discharging opening that inert gas rapid condensation device discharging opening joins, described inert gas rapid condensation device is that the discharging opening of charging aperture and high temperature spray combustion fast restore device joins and the inner reaction vessel that inert gas is housed; Described raw material conveying and pretreatment unit, high temperature spray combustion fast restore device, inert gas rapid condensation device and described multistage metal ultrafine powder grading plant inside are communicated with the production circulation passage that composition is handled processed raw material successively, and described production circulation passage afterbody is connected with the air-introduced machine that communicates with its inside, raw material is carried and the charging aperture and the oxygen cylinder of pretreatment unit join, and superonic flow nozzzle and air compressor join; The reaction vessel of described high temperature spray combustion fast restore device for joining by pipeline and reducing atmosphere source of the gas, and correspondence has the reducing atmosphere import on the high temperature spray combustion fast restore device;
Described processed raw material is wire and/or metal-powder, and described raw material is carried and pretreatment unit should be mutually the wire of independent input is carried and pretreated raw material carries and pretreatment unit one, the metal-powder of independent input is carried and pretreated raw material is carried and pretreatment unit two and to the wire of input simultaneously with metal-powder is carried and pretreated raw material is carried and pretreatment unit three; Described raw material carry and pretreatment unit one by have the wire input unit and can to the input wire carry out the device of arc of arc-melting, the charging aperture of high temperature spray combustion fast restore device and the discharging opening of described device of arc join; Described raw material is carried and pretreatment unit two comprises dust feeder, and the charging aperture of high temperature spray combustion fast restore device and the discharging opening of described dust feeder join; Described raw material is carried and pretreatment unit three comprises and has wire input unit and can be to importing the device of arc that wire and metal dust carry out arc-melting simultaneously, and the charging aperture place of described device of arc is provided with dust feeder; Described device of arc and direct-current arc power supply join.
Described high temperature spray combustion fast restore device comprise have before plug and rearward end be uncovered external shell, have feed openings, a plurality of reducing atmosphere import and a plurality of secondary oxygen supply import that feeds for described metal oxide liquid mist on the plug before described; The oxygen that described oxygen cylinder provided enters high temperature spray combustion fast restore device by feed openings; Described external shell inside is provided with corresponding cooling water inlet and the coolant outlet that joins with described water cooling pipeline that have on water cooling pipeline and its sidewall; Feed openings and raw material are carried and the discharging opening of pretreatment unit joins, and the rearward end of external shell is uncovered to communicate with inert gas rapid condensation device inside.
Described external shell is a cylindrical shell, preceding plug is circular, feed openings is arranged on preceding plug center, and a plurality of reducing atmosphere imports along the circumferential direction evenly are laid in the feed openings outside, and a plurality of secondary oxygen supply imports along the circumferential direction evenly are laid in described a plurality of reducing atmosphere imports outside; In described a plurality of reducing atmosphere import the reducing atmosphere jet blower is housed all, in a plurality of secondary oxygen supply imports secondary oxygen jet blower is housed all.
Described raw material conveying and pretreatment unit, high temperature spray combustion fast restore device and inert gas rapid condensation device are assembled into one and the coaxial setting of three.
Described raw material conveying and pretreatment unit are cylindrical structural with high temperature spray combustion fast restore device and the external diameter of the two is identical; Described raw material conveying and pretreatment unit and high temperature spray combustion fast restore device are installed as that the charging aperture from inert gas rapid condensation device penetrates inert gas rapid condensation device inside after the one, and are tightly connected between the sidewall of the charging aperture of inert gas rapid condensation device and raw material conveying and pretreatment unit or high temperature spray combustion fast restore device.
Described multistage metal ultrafine powder grading plant comprises successively three grades of high-pressure electrostatic grading plants that join with inert gas rapid condensation device discharging opening.
Be connected and sealed by sealing ring between described external shell and preceding plug, to be cylindrical shell and its be made up of overcoat and the interior cover that is sleeved on overcoat inside external shell.
The utility model compared with prior art has the following advantages:
1, reasonable in design, the use raw material is extensive, production efficiency is high, cost is low, the metal ultrafine powder particle diameter that generates controlled, be specially the metal ultrafine powder of 10 nanometers～1 micron grain size.
2, powder purity is equal to high pure raw material self purity, can not introduce impurity in the preparation process, and powder has kept original metal phase.
3, production procedure is short and production efficiency is high, can realize continuous industry production.
But 4, use extensive, the applied widely and industrialization production of raw material, can be applicable to the production preparation of multiple metalloid and alloy, oxidate nano ultra micro powder.
In sum, the present invention is reasonable in design, the use raw material is extensive, production efficiency is high, cost is low, can effectively solve existing existing number of drawbacks of Apparatus and method for and deficiency of producing nano-metal ultrafine powder.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of the utility model high temperature spray combustion fast restore device.
Fig. 3 is the right view of Fig. 2.
Fig. 4 produces the technological process of production figure of high-purity nano-metal ultrafine powder for adopting the utility model.
Fig. 5 by the utility model to the fundamental diagram of input wire when carrying out arc-melting.
Ignition temperature distribution map when Fig. 6 carries out arc-melting for the utility model.
Description of reference numerals:
The 1-raw material is carried and preliminary treatment dress 1-1-ignition tip; The 1-2-conducting block;
Put;
The 2-wire pushing roller; The 3-superonic flow nozzzle; 4-high temperature spray combustion is fast
The speed reductor;
The 4-1-external shell; The 4-11-overcoat; Cover in the 4-12-;
Plug before the 4-2-; The 4-3-feed openings; The import of 4-4-reducing atmosphere;
4-5-secondary oxygen supply import; The 4-6-cooling water inlet; The 4-7-coolant outlet;
The 4-8-sealing ring; 4-9-powder feeding passage; The 5-high temperature reaction stove;
The 6-air-introduced machine; The 8-oxygen cylinder; The 9-air compressor;
10-high-pressure electrostatic grading plant; 11-powder gathering-device; 13-direct-current arc power supply.
The specific embodiment
As shown in Figure 1, the utility model comprises to be carried and pretreated raw material conveying and pretreatment unit 1 processed raw material, be arranged on that raw material is carried and pretreatment unit 1 is inner and the metal oxide that raw material obtains after preliminary treatment is atomized into the superonic flow nozzzle 3 of metal oxide liquid mist, charging aperture and raw material are carried and the discharging opening of pretreatment unit 1 joins and described metal oxide liquid mist high temperature reduction can be reacted into the high temperature spray combustion fast restore device 4 of ball shaped nano metal ultrafine powder, described ball shaped nano metal ultrafine powder is carried out rapid condensation and can prevent effectively that the ball shaped nano metal ultrafine powder that generates from the inert gas rapid condensation device 5 of oxidation further taking place, with multistage metal ultrafine powder grading plant and a plurality of powder gathering-device 11 that is laid in described multistage metal ultrafine powder grading plant below respectively and joins with described multistage metal ultrafine powder grading plant below discharging opening that inert gas rapid condensation device 5 discharging openings join, described inert gas rapid condensation device 5 joins and the inner reaction vessel that inert gas is housed for the discharging opening of charging aperture and high temperature spray combustion fast restore device 4.Described raw material is carried and pretreatment unit 1, high temperature spray combustion fast restore device 4, inert gas rapid condensation device 5 and described multistage metal ultrafine powder grading plant inside are communicated with the production circulation passage that composition is handled processed raw material successively, and described production circulation passage afterbody is connected with the air-introduced machine 6 that communicates with its inside, raw material is carried and the charging aperture and the oxygen cylinder 8 of pretreatment unit 1 join, and superonic flow nozzzle 3 joins with air compressor 9.The reaction vessel of described high temperature spray combustion fast restore device 4 for joining by pipeline and reducing atmosphere source of the gas, and correspondence has reducing atmosphere import 4-4 on the high temperature spray combustion fast restore device 4.
Described processed raw material is wire and/or metal-powder, and described raw material is carried and pretreatment unit 1 should be mutually the wire of independent input is carried and pretreated raw material carries and pretreatment unit one, the metal-powder of independent input is carried and pretreated raw material is carried and pretreatment unit two and to the wire of input simultaneously with metal-powder is carried and pretreated raw material is carried and pretreatment unit three.Described raw material carry and pretreatment unit one by have the wire input unit and can to the input wire carry out the device of arc of arc-melting, the charging aperture of high temperature spray combustion fast restore device 4 and the discharging opening of described device of arc join.Described raw material is carried and pretreatment unit two comprises dust feeder, and the charging aperture of high temperature spray combustion fast restore device 4 and the discharging opening of described dust feeder join.Described raw material is carried and pretreatment unit three comprises and has wire input unit and can be to importing the device of arc that wire and metal dust carry out arc-melting simultaneously, and the charging aperture place of described device of arc is provided with dust feeder; Described device of arc and direct-current arc power supply 13 join.
In conjunction with Fig. 2, Fig. 3, described high temperature spray combustion fast restore device 4 comprise have before plug 4-2 and rearward end be uncovered external shell 4-1, have feed openings 4-3, a plurality of reducing atmosphere import 4-4 and a plurality of secondary oxygen supply import 4-5 that feeds for described metal oxide liquid mist on the plug 4-2 before described.The oxygen that described oxygen cylinder 8 is provided enters high temperature spray combustion fast restore device 4 by feed openings 4-3.Described external shell 4-1 inside is provided with corresponding cooling water inlet 4-6 and the coolant outlet 4-7 that joins with described water cooling pipeline that have on water cooling pipeline and its sidewall.Described feed openings 4-3 and raw material are carried and the discharging opening of pretreatment unit 1 joins, and the rearward end of external shell 4-1 is uncovered to communicate with inert gas rapid condensation device 5 inside.Described external shell 4-1 is a cylindrical shell, preceding plug 4-2 is circular, feed openings 4-3 is arranged on preceding plug 4-2 center, a plurality of reducing atmosphere import 4-4 along the circumferential direction evenly are laid in the feed openings 4-3 outside, and a plurality of secondary oxygen supply import 4-5 along the circumferential direction evenly are laid in described a plurality of reducing atmosphere import 4-4 outside.On described a plurality of reducing atmosphere import 4-4 the reducing atmosphere jet blower is housed all, on a plurality of secondary oxygen supply import 4-5 secondary oxygen jet blower is housed all.Be connected and sealed by sealing ring 4-8 between described external shell 4-1 and preceding plug 4-2, to be cylindrical shell and its be made up of overcoat 4-11 and the interior cover 4-12 that is sleeved on overcoat 4-11 inside external shell 4-1.
In conjunction with Fig. 5, Fig. 6, in the present embodiment, described device of arc is an arc gum, and described wire feeder is the wire pushing roller 2 that is used with arc gum.The conducting block 1-2 that described arc gum inside is provided with ignition tip 1 and is arranged on ignition tip 1-1 outside and joins with direct-current arc power supply 13.
As shown in Figure 4, when utilizing the utility model to produce high-purity nano-metal ultrafine powder, may further comprise the steps:
Step 1, raw material are carried and preliminary treatment: when the processed raw material of import is wire, adopt described device of arc that the metal to be treated silk of sending into by wire feeder is carried out arc-melting; When the processed raw material of import is wire and metal dust, adopt described device of arc that metal to be treated silk and the metal dust of sending into by wire feeder and dust feeder carried out arc-melting simultaneously; When carrying out arc-melting, the output voltage of described direct-current arc power supply 13 is that 26-36V and its output current are 20-400A; When sending into wire or wire and metal dust are carried out arc-melting, under the effect of oxygen cylinder 8 oxygen that provides, the metal melt that is generated behind the arc-melting is carried and pretreatment unit 1 inner generation high-temperature oxydation reaction at raw material, and the corresponding metal oxide that generates.The output voltage of described 26-36V is respectively six grades of 26V, 28V, 30V, 32V, 34V and 36V.
When the processed raw material of import is metal dust, adopts described dust feeder and be that source of the gas carries out powder feeding, and should will light before the powder feeding described HC fuel with the HC fuel; Under the effect of oxygen cylinder 8 oxygen that provides, the metal-powder after lighting is carried and pretreatment unit 1 inner generation high-temperature oxydation reaction at raw material, and the corresponding metal oxide that generates.
The conveying of the reaction of step 3, high temperature fast restore and the ball shaped nano metal ultrafine powder that generates: after the high pressure oxygen that described metal oxide liquid mist is provided together with supersonic airstream and oxygen cylinder 8 is admitted to high temperature spray combustion fast restore device 4 inside, correspondingly in inside is high temperature spray combustion fast restore device 4 under the reducing atmosphere, carry out the high temperature reduction reaction, and generate the size-controllable spherical nano-metal ultrafine powder; The ball shaped nano metal ultrafine powder that is generated is admitted to inert gas rapid condensation device 5 under the effect of superonic flow nozzzle 3 supersonic airstream that produces.And, the corresponding secondary oxygen supply import 4-5 that joins with secondary oxygen supply source of the gas that has on the described high temperature spray combustion fast restore device 4.
Step 4, rapid condensation: after described ball shaped nano metal ultrafine powder is admitted to inert gas rapid condensation device 5, carry out described ball shaped nano metal ultrafine powder by the inert gas rapid condensation device 5 inner inert gases that are full of and carry out rapid condensation, described indifferent gas physical efficiency effectively prevents described ball shaped nano metal ultrafine powder generation secondary oxidation simultaneously.
Step 5, particle classifying and collection: successively the nano-metal ultrafine powder after rapid condensation is carried out multiple fractionation by described multistage metal ultrafine powder grading plant, and corresponding to a plurality of powder gathering-device 11 corresponding other ball shaped nano metal ultrafine powders of a plurality of grain-size grades of collecting respectively; Carry out in particle classifying and the collection process, under the acting in conjunction of supersonic airstream that described production circulation passage head superonic flow nozzzle 3 is produced and the set air-introduced machine 6 of afterbody, finish whole particle classifying and collection process.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection domain of technical solutions of the utility model according to the utility model technical spirit.
Claims (7)
1. the production equipment of a high-purity nano-metal ultrafine powder, it is characterized in that: comprise processed raw material is carried and pretreated raw material conveying and pretreatment unit (1), be arranged on that raw material is carried and pretreatment unit (1) is inner and the metal oxide that raw material obtains be atomized into the superonic flow nozzzle (3) of metal oxide liquid mist after preliminary treatment, charging aperture and raw material are carried and the discharging opening of pretreatment unit (1) joins and described metal oxide liquid mist high temperature reduction can be reacted into the high temperature spray combustion fast restore device (4) of ball shaped nano metal ultrafine powder, described ball shaped nano metal ultrafine powder is carried out rapid condensation and can prevent effectively that the ball shaped nano metal ultrafine powder that generates from the inert gas rapid condensation device (5) of oxidation further taking place, with multistage metal ultrafine powder grading plant and a plurality of powder gathering-device (11) that is laid in described multistage metal ultrafine powder grading plant below respectively and joins with described multistage metal ultrafine powder grading plant below discharging opening that inert gas rapid condensation device (5) discharging opening joins, described inert gas rapid condensation device (5) joins and the inner reaction vessel that inert gas is housed for the discharging opening of charging aperture and high temperature spray combustion fast restore device (4); Described raw material is carried and pretreatment unit (1), high temperature spray combustion fast restore device (4), inert gas rapid condensation device (5) and described multistage metal ultrafine powder grading plant inside are communicated with the production circulation passage that composition is handled processed raw material successively, and described production circulation passage afterbody is connected with the air-introduced machine (6) that communicates with its inside, raw material is carried and the charging aperture and the oxygen cylinder (8) of pretreatment unit (1) join, and superonic flow nozzzle (3) joins with air compressor (9); The reaction vessel of described high temperature spray combustion fast restore device (4) for joining by pipeline and reducing atmosphere source of the gas, and the last correspondence of high temperature spray combustion fast restore device (4) has reducing atmosphere import (4-4);
Described processed raw material is wire and/or metal-powder, and described raw material is carried and pretreatment unit (1) should be mutually the wire of independent input is carried and pretreated raw material carries and pretreatment unit one, the metal-powder of independent input is carried and pretreated raw material is carried and pretreatment unit two and to the wire of input simultaneously with metal-powder is carried and pretreated raw material is carried and pretreatment unit three; Described raw material carry and pretreatment unit one by have the wire input unit and can to the input wire carry out the device of arc of arc-melting, the charging aperture of high temperature spray combustion fast restore device (4) and the discharging opening of described device of arc join; Described raw material is carried and pretreatment unit two comprises dust feeder, and the charging aperture of high temperature spray combustion fast restore device (4) and the discharging opening of described dust feeder join; Described raw material is carried and pretreatment unit three comprises and has wire input unit and can be to importing the device of arc that wire and metal dust carry out arc-melting simultaneously, and the charging aperture place of described device of arc is provided with dust feeder; Described device of arc and direct-current arc power supply (13) join.
2. according to the production equipment of the described a kind of high-purity nano-metal ultrafine powder of claim 1, it is characterized in that: described high temperature spray combustion fast restore device (4) comprises and has preceding plug (4-2) and rearward end is uncovered external shell (4-1), has feed openings (4-3), a plurality of reducing atmosphere import (4-4) and a plurality of secondary oxygen supply imports (4-5) that feed for described metal oxide liquid mist on the plug (4-2) before described; The oxygen that described oxygen cylinder (8) is provided enters high temperature spray combustion fast restore device (4) by feed openings (4-3); Described external shell (4-1) inside is provided with corresponding cooling water inlet (4-6) and the coolant outlet (4-7) that joins with described water cooling pipeline that have on water cooling pipeline and its sidewall; Feed openings (4-3) is carried with raw material and the discharging opening of pretreatment unit (1) joins, and the rearward end of external shell (4-1) is uncovered to communicate with inert gas rapid condensation device (5) inside.
3. according to the production equipment of the described a kind of high-purity nano-metal ultrafine powder of claim 2, it is characterized in that: described external shell (4-1) is a cylindrical shell, preceding plug (4-2) is circular, feed openings (4-3) is arranged on preceding plug (4-2) center, a plurality of reducing atmosphere imports (4-4) along the circumferential direction evenly are laid in feed openings (4-3) outside, and a plurality of secondary oxygen supply imports (4-5) along the circumferential direction evenly are laid in described a plurality of reducing atmosphere imports (4-4) outside; In described a plurality of reducing atmosphere imports (4-4) the reducing atmosphere jet blower is housed all, secondary oxygen jet blower all is housed in a plurality of secondary oxygen supply imports (4-5).
4. according to the production equipment of claim 2 or 3 described a kind of high-purity nano-metal ultrafine powders, it is characterized in that: described raw material is carried and pretreatment unit (1), high temperature spray combustion fast restore device (4) and inert gas rapid condensation device (5) are assembled into one and the coaxial setting of three.
5. according to the production equipment of the described a kind of high-purity nano-metal ultrafine powder of claim 4, it is characterized in that: described raw material carries and pretreatment unit (1) is cylindrical structural with high temperature spray combustion fast restore device (4) and the external diameter of the two is identical; Described raw material is carried and pretreatment unit (1) and high temperature spray combustion fast restore device (4) are installed as that the charging aperture from inert gas rapid condensation device (5) penetrates inert gas rapid condensation device (5) inside after the one, and is tightly connected between the sidewall of the charging aperture of inert gas rapid condensation device (5) and raw material conveying and pretreatment unit (1) or high temperature spray combustion fast restore device (4).
6. according to the production equipment of claim 1,2 or 3 described a kind of high-purity nano-metal ultrafine powders, it is characterized in that: described multistage metal ultrafine powder grading plant comprises successively the three grades of high-pressure electrostatic grading plants (10) that join with inert gas rapid condensation device (5) discharging opening.
7. according to the production equipment of the described a kind of high-purity nano-metal ultrafine powder of claim 2, it is characterized in that: be connected and sealed by sealing (4-8) between described external shell (4-1) and preceding plug (4-2), external shell (4-1) is made up of overcoat (4-11) and the interior cover (4-12) that is sleeved on overcoat (4-11) inside for cylindrical shell and its.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009202454944U CN201529772U (en) | 2009-11-27 | 2009-11-27 | Production device of high-pure nanometer metal ultrafine powder |
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| CN2009202454944U CN201529772U (en) | 2009-11-27 | 2009-11-27 | Production device of high-pure nanometer metal ultrafine powder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101716683B (en) * | 2009-11-27 | 2011-11-30 | 西安慧维纳米金属材料有限公司 | Equipment and method for producing high-purity nano-metal ultrafine powder |
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2009
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101716683B (en) * | 2009-11-27 | 2011-11-30 | 西安慧维纳米金属材料有限公司 | Equipment and method for producing high-purity nano-metal ultrafine powder |
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Granted publication date: 20100721 Effective date of abandoning: 20091127 |