CN103537704A - Pneumatic atomization production method of high-purity fine spherical metal magnesium powder - Google Patents
Pneumatic atomization production method of high-purity fine spherical metal magnesium powder Download PDFInfo
- Publication number
- CN103537704A CN103537704A CN201310082862.9A CN201310082862A CN103537704A CN 103537704 A CN103537704 A CN 103537704A CN 201310082862 A CN201310082862 A CN 201310082862A CN 103537704 A CN103537704 A CN 103537704A
- Authority
- CN
- China
- Prior art keywords
- magnesium
- ball
- nitrogen
- powder
- argon gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
Provided is a pneumatic atomization production method of high-purity fine spherical metal magnesium powder. Argon with relatively high pressure is used for pneumatic atomization of metal magnesium liquid, preliminary cooling is carried out on the metal magnesium liquid to lower the temperature of the metal magnesium liquid below 300 DEG C and produce spherical magnesium powder, the fact that the magnesium powder does not have chemical reactions at high temperature is kept, meanwhile nitrogen with the temperature lower than 10 DEG C is introduced to the middle of an atomization cooling chamber for further cooling, transportation, collecting and packaging of the spherical magnesium powder, and the nitrogen and the argon can be separated from mixed gas after gas-particle separation and used in a recycling mode.
Description
Technical field
The present invention is a kind of method that adopts pneumatic nebulization mode production high-purity minute spherical metal magnesium powder, be adopt argon gas by the magnesium metal hydraulic pneumatic spray atomization of high temperature and be cooled to spherical magnesium powder and the lower nitrogen of serviceability temperature carries out the method for further cooling and conveying, collecting packing, belong to metal powder material processing technique field.
Background technology
Magnesium is a kind of more active metal, under normal temperature, just can generate magnesia with airborne oxygen reaction, is heated to 350 ℃ and just can reacts with nitrogen generation magnesium nitride.What the production of magnesium powder adopted now is mechanical smear metal method, the magnesium Powder Particle Size of producing is more than 0.1 millimeter, and be irregularly shaped, because production process is exposed in air, Surface Creation has magnesia, because need to there be solvent cooling at smear metal working face, be also mixed with organic substance in magnesium chips again, the magnesium flour gold of producing belongs to content of magnesium below 96%.
Summary of the invention
The present invention is the performance that application magnesium does not react and do not react with nitrogen at temperature below 350C with argon gas; be atomized into argon shield the preliminary cooling for process of powder; be reduced to below 300 ℃ to temperature; nitrogen protection, the conveying of input lower temperature also continues to cool to normal temperature, then under the protection of nitrogen, argon gas, collects and packing.
The process that high-purity fine ball-shaped magnesite powder method is produced in pneumatic nebulization is: (1) is fused into magnesium liquid with electric melting magnesium furnace by magnesium metal, and temperature reaches 660 ℃, has argon shield to make it not oxidized on magnesium liquid; Argon gas pipeline is enclosed within outside the earthenware duct of extracting magnesium liquor, stretches into atomization cooling chamber; With gas compressor purity at more than 99.9% argon pressurization to being greater than 1MP, argon stream rapid flow produces negative pressure at earthenware road junction, 660 ℃ of magnesium liquid of temperature in molten magnesium stove are sucked out at atomization cooling chamber and spray at a high speed and be atomized into tiny magnesium drop with earthenware duct, drop because of surface tension effects spherical in shape, argon gas carries out when the atomization coolingly because of step-down heat absorption fast to drop, magnesium droplet solidification just forms ball-shaped magnesite powder and reduces the temperature to below 300 ℃.In atomization, form the process of ball-shaped magnesite powder, among the protection in argon gas.(2) owing to not reacting with nitrogen at temperature below 350C magnesium, when argon gas forms ball-shaped magnesite powder to the atomization of magnesium liquid, purity being greater than to 99.99% nitrogen reduces after temperature is less than 10 ℃ and passes into atomization cooling chamber middle part through gas cooler, mix with argon gas and ball-shaped magnesite powder, make ball-shaped magnesite powder further be cooled to 40 ℃ below and be transported to rotational flow settlement chamber.Most of ball-shaped magnesite powder in rotational flow settlement chamber is collected into the rewinding tank of bottom, can by this rewinding tank with discharge valve emit packing.A small amount of ball-shaped magnesite powder enters pneumatic filter with nitrogen, argon gas, and pneumatic filter filters down the ball-shaped magnesite powder in gas collect in the rewinding tank of its underpart, can by this rewinding tank with discharge valve emit packing.(3) nitrogen, the argon gas mist of through pneumatic filter, removing ball-shaped magnesite powder enter film separate type nitrogen filtering device, and nitrogen and argon gas are separated, and pass through respectively pipeline recycling.
It is to carry out in argon gas and the lower nitrogen of temperature mixed gas protected that the present invention produces magnesium powder; can there is not chemical reaction; production process continuously, do not have impurity to mix; and be shaped as spherical; granularity is between 0.8 micron to 50 microns; magnesium metal content can reach more than 99.9%, and the argon gas of atomization and protective effect, nitrogen circulation are used and can be reduced costs.
Accompanying drawing explanation
Accompanying drawing 1: high-purity fine spherical metal magnesium powder production procedure
1, molten magnesium stove, 2, earthenware duct, 3, atomization cooling chamber, 4, rotational flow settlement chamber, 5, pneumatic filter, 6, blower fan, 7, film separate type nitrogen filtering device, 8, gas compressor, 9, argon storage tank, 10, gas cooler, 11, nitrogen storage tank, 12, argon gas pipeline, 13, nitrogen pipeline, 14, rewinding tank, 15, earth connection, 16, pan feeding valve, 17, discharge valve
The specific embodiment
1, magnesium metal is put into molten magnesium stove (1) and be melted into liquid state, control magnesium metal liquid temp at 660 ℃, magnesium liquid surface has argon shield not oxidized, connects earthenware duct (2).
2, the discharge valve (17) that checks rewinding tank (14), in closed condition, checks that earth connection (15) keeps being communicated with, and opens the pan feeding valve (16) of rewinding tank (14).
3, start blower fan (6) and gas cooler (10), the purity of carrying in nitrogen pipeline (13) is controlled at below 10 ℃ at 99.99% above nitrogen temperature.
4, when starting blower fan (6) and gas cooler (10), start gas compressor (8), the purity of argon storage tank (9) output is greater than to 99.9% argon pressurization to after more than 1MP, through entangling the argon gas pipeline (12) of earthenware duct (2), spraying into atomization cooling chamber (3) is decompressed to normal pressure at a high speed, the negative pressure producing is sprayed on magnesium metal liquid in atomization cooling chamber (3) and is atomized into magnesium drop from molten magnesium stove (1) sucking-off through earthenware duct (2), argon gas decompression absorbing and cooling temperature makes magnesium drop be cooled to ball-shaped magnesite powder, by the pressure of adjustments of gas compressor (8) output argon gas, the mixture temperature that control ball-shaped magnesite powder forms rear and argon gas is below 300 ℃.
5, the ball-shaped magnesite powder producing mixes with the nitrogen below 10 ℃ in atomization cooling chamber (3) with the mixture of argon gas, continue to reduce temperature, by adjustments of gas cooler (10), control the nitrogen temperature in nitrogen pipeline (13), the temperature of ball-shaped magnesite powder is reduced in below 40 °.
6, the gas grain mixture of nitrogen, argon gas and ball-shaped magnesite powder enters behind rotational flow settlement chamber (4), and a large amount of ball-shaped magnesite powder eddy flows declines, and through the pan feeding valve (16) of opening, enters in the rewinding tank (14) of bottom, rotational flow settlement chamber (4).
7, a small amount of ball-shaped magnesite powder is carried and enters in pneumatic filter (5) by nitrogen, argon gas, separated from the gas after filtering, through the pan feeding valve (16) of opening, enters in the rewinding tank (14) of pneumatic filter (5) bottom.
8, close after pan feeding valve (16), opening discharge valve (17) can pack ball-shaped magnesite powder into packing material containing under a small amount of nitrogen, argon shield atmosphere.
9, close after discharge valve (17), open pan feeding valve (16) and can continue to collect the ball-shaped magnesite powder of producing.
10, after pneumatic filter (5) filters, do not contain nitrogen, the argon gas mist of ball-shaped magnesite powder, entering film separate type nitrogen filtering device (7) separates nitrogen and argon gas, nitrogen enters gas cooler (10) and recycles, and argon gas enters argon storage tank (9) and recycles.
Claims (4)
1. the pneumatic nebulization production method of a high-purity minute spherical metal magnesium powder, the argon gas that it is characterized in that adopting pressure to be greater than 1MP is to the magnesium metal hydraulic pneumatic atomization of 660 ℃ of temperature and coolingly produce ball-shaped magnesite powder and reduce below temperature to 300 ℃, and chemical reaction does not occur while keeping magnesium powder high temperature; At atomization cooling chamber middle part, pass into simultaneously temperature lower than the nitrogen of 10 ℃, ball aluminum powder is carried out further cooling and deliver into that collect rotational flow settlement Shi,Qi Li separation chamber and rewinding is packed, to the mist after the separation of gas grain isolate nitrogen, argon gas recycles.
2. the pneumatic nebulization production method of a kind of high-purity minute spherical metal magnesium powder according to claim 1, it is characterized in that: argon gas pipeline is enclosed within outside the earthenware duct of extracting magnesium liquor, stretch into atomization cooling chamber, with purity more than 99.9%, the pressure argon stream that is greater than 1MP produces negative pressure, 660 ℃ of magnesium liquid of temperature in molten magnesium stove are sucked out at atomization cooling chamber and spray at a high speed and be atomized into tiny magnesium drop with earthenware duct, and argon gas absorbs heat and makes magnesium droplet solidification just form ball-shaped magnesite powder and reduce the temperature to below 300 ℃ because of step-down.
3. the pneumatic nebulization production method of a kind of high-purity minute spherical metal magnesium powder according to claim 1, it is characterized in that: when the atomization of magnesium liquid forms ball-shaped magnesite powder, purity being greater than to 99.99% nitrogen reduces after temperature is less than 10 ℃ and passes into atomization cooling chamber middle part through gas cooler, mix with argon gas and ball-shaped magnesite powder, make ball-shaped magnesite powder further be cooled to 40 ℃ below and be transported to rotational flow settlement chamber, most of ball-shaped magnesite powder is in rotational flow settlement chamber is collected into the rewinding tank of bottom, can by this rewinding tank with discharge valve emit packing, a small amount of ball-shaped magnesite powder is with nitrogen, argon gas enters pneumatic filter, pneumatic filter filters down the ball-shaped magnesite powder in gas collect in the rewinding tank of its underpart, can by this rewinding tank with discharge valve emit packing.
4. the pneumatic nebulization production method of a kind of high-purity minute spherical metal magnesium powder according to claim 1, it is characterized in that: nitrogen, the argon gas mist of through pneumatic filter, removing ball-shaped magnesite powder enter film separate type nitrogen filtering device, nitrogen and argon gas are separated, by pipeline, reclaim cycling and reutilization respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310082862.9A CN103537704A (en) | 2013-03-15 | 2013-03-15 | Pneumatic atomization production method of high-purity fine spherical metal magnesium powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310082862.9A CN103537704A (en) | 2013-03-15 | 2013-03-15 | Pneumatic atomization production method of high-purity fine spherical metal magnesium powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103537704A true CN103537704A (en) | 2014-01-29 |
Family
ID=49961777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310082862.9A Pending CN103537704A (en) | 2013-03-15 | 2013-03-15 | Pneumatic atomization production method of high-purity fine spherical metal magnesium powder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103537704A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104762541A (en) * | 2015-03-17 | 2015-07-08 | 华南协同创新研究院 | Rare earth magnesium-alloy material for 3D printing and preparation method of same |
| CN106853534A (en) * | 2016-12-19 | 2017-06-16 | 西安欧中材料科技有限公司 | A kind of device for improving titanium alloy powder yield rate |
| CN116275063A (en) * | 2022-09-08 | 2023-06-23 | 四川万邦胜辉新能源科技有限公司 | Method for preparing high-activity spherical fine magnesium powder/magnesium lithium alloy powder by airflow atomization method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1116974A (en) * | 1994-08-17 | 1996-02-21 | 戴自梁 | Producing method for -325 mesh zinc powder |
| CN1465460A (en) * | 2002-07-03 | 2004-01-07 | 刘锦铭 | Method for producing ultrafine spherical magnesium powder |
| CN1597196A (en) * | 2004-08-06 | 2005-03-23 | 营口恒大实业有限公司 | Manufacturing method of ultra fine ball-shaped magnesium powder |
| CN1923414A (en) * | 2006-07-24 | 2007-03-07 | 林刚 | Production facility and production method for atomized producing ball-shaped magnesite powder |
| CN101837461A (en) * | 2010-05-18 | 2010-09-22 | 张耀平 | Method for producing metal powder by isoionic atomization |
| US20110256250A1 (en) * | 2004-12-22 | 2011-10-20 | Taiyo Nippon Sanso Corporation | Process for producing metallic ultrafine powder |
-
2013
- 2013-03-15 CN CN201310082862.9A patent/CN103537704A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1116974A (en) * | 1994-08-17 | 1996-02-21 | 戴自梁 | Producing method for -325 mesh zinc powder |
| CN1465460A (en) * | 2002-07-03 | 2004-01-07 | 刘锦铭 | Method for producing ultrafine spherical magnesium powder |
| CN1597196A (en) * | 2004-08-06 | 2005-03-23 | 营口恒大实业有限公司 | Manufacturing method of ultra fine ball-shaped magnesium powder |
| US20110256250A1 (en) * | 2004-12-22 | 2011-10-20 | Taiyo Nippon Sanso Corporation | Process for producing metallic ultrafine powder |
| CN1923414A (en) * | 2006-07-24 | 2007-03-07 | 林刚 | Production facility and production method for atomized producing ball-shaped magnesite powder |
| CN101837461A (en) * | 2010-05-18 | 2010-09-22 | 张耀平 | Method for producing metal powder by isoionic atomization |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104762541A (en) * | 2015-03-17 | 2015-07-08 | 华南协同创新研究院 | Rare earth magnesium-alloy material for 3D printing and preparation method of same |
| CN104762541B (en) * | 2015-03-17 | 2017-03-15 | 华南协同创新研究院 | A kind of rare earth magnesium alloy material for 3D printing and preparation method thereof |
| CN106853534A (en) * | 2016-12-19 | 2017-06-16 | 西安欧中材料科技有限公司 | A kind of device for improving titanium alloy powder yield rate |
| CN116275063A (en) * | 2022-09-08 | 2023-06-23 | 四川万邦胜辉新能源科技有限公司 | Method for preparing high-activity spherical fine magnesium powder/magnesium lithium alloy powder by airflow atomization method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205414417U (en) | Device of plasma atomizing preparation high performance powder for vibration material disk | |
| CN102689015B (en) | Metal powder preparation device and method therefor | |
| CN103785860B (en) | Metal dust of 3D printer and preparation method thereof | |
| CN106378460A (en) | Plasma atomization method and apparatus for preparing pure titanium or titanium alloy powder | |
| CN101660012B (en) | Anhydrous granulating technique of metallurgical slag and device thereof | |
| CN107282934B (en) | A kind of catalytic behavior of materials refractory powder spheroidization apparatus | |
| CN109808049A (en) | A kind of method that high-temperature gas aerosolization prepares spherical powder | |
| CN101618458A (en) | Preparation method of sub-micron zinc powder and preparation device thereof | |
| CN103537704A (en) | Pneumatic atomization production method of high-purity fine spherical metal magnesium powder | |
| CN107601537B (en) | Method for preparing high-purity alumina powder by high-purity aluminum atomization fast combustion method and special device | |
| CN107225252A (en) | A kind of passivation of lithium microballoon production method | |
| CN202684094U (en) | Device for preparing metal powder | |
| CN102826736A (en) | Method for preparing hollow glass bead by using glass powder process | |
| CN104070173A (en) | Preparation method of spherical tungsten powder | |
| CN103043665B (en) | Preparation method for silicon powder | |
| JP4668751B2 (en) | Powder manufacturing method | |
| CN103537685A (en) | Method for producing sintering metal powder wrapped by rosin thin film | |
| CN109592691A (en) | A kind of device and method of gas heating countercurrent spray method production high-purity ultra-fine sphere silicon micro-powder | |
| CN105345018A (en) | Preparation method for micron-size activated aluminum powder and aluminum powder | |
| CN211514416U (en) | Spray cooling granulation device | |
| CN107127349B (en) | A kind of method of high temperature liquid iron aerosolization decarburization steel-making | |
| CN102329901A (en) | Liquid-state steel slag micronization recycling device | |
| CN206631542U (en) | A kind of efficient Granulation Equipments for chemical fertilizer production | |
| CN206351253U (en) | A kind of rapid solidification prepares the device of refining metallic powder | |
| CN1221349C (en) | Method for producing ultrafine spherical magnesium powder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140129 |