CN1301816C - Continuous production equipment for nano metal - Google Patents
Continuous production equipment for nano metal Download PDFInfo
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- CN1301816C CN1301816C CNB021448817A CN02144881A CN1301816C CN 1301816 C CN1301816 C CN 1301816C CN B021448817 A CNB021448817 A CN B021448817A CN 02144881 A CN02144881 A CN 02144881A CN 1301816 C CN1301816 C CN 1301816C
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Abstract
The present invention relates to a device of the continuous production of nanometer metal, which comprises a powder making mechanism, a forcible mechanism of air flow circulation, a powder collecting mechanism and a packing box, wherein an outlet of the powder making mechanism is connected with a filter of the powder collecting mechanism which is connected with the packing box through a pipeline; an air inlet and an air outlet of an axial flow blower of the forcible mechanism of air flow circulation are connected with the powder collecting mechanism and the powder making mechanism through pipelines; an electric arc gun is inserted in the top of the powder making mechanism; the bottom of the powder making mechanism is provided with a continuous feeding mechanism corresponding to the electric arc gun; the powder making mechanism, the powder collecting mechanism and the packing box are connected with a vacuum pump through pipelines; a feed inlet of the continuous feeding mechanism is provided with a two sealing rings; a differential evacuating device arranged between the sealing rings is communicated with a material feeding cavity. The present invention overcomes the problem that the air tightness of a traditional technology is not good, the purity of nanometer metal powder is low, and the electric arc combustion is not stable, etc. The present invention can be used for the continuous production of the nanometer metal powder or nanometer metal blocks.
Description
Technical field
The present invention relates to the technology of preparing of nano metal, be specially a kind of continuous production equipment of nano metal.
Background technology
At present, nano metal material is widely used in the every field of national economy, owing to have all size premium properties that material is beyond one's reach, at powder metallurgy, fine chemistry industry, there is broad application prospect in fields such as electronic information, existing method of producing nano metal powder mainly contains chemical method and physical method, 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, physical method has laser method and plasma method, the output of its nano powder does not reach the suitability for industrialized production level yet, can not produce continuously.
Chinese invention patent, Granted publication CN2239850Y, November 13 1996 Granted publication day, a kind of generation chamber of continuous production ultramicron is disclosed, it comprises generation chamber, bipolar electrode, friction feeding case, it is characterized in that generating the indoor two pairs of electrodes that are equipped with, the equipped friction feeding case in the outside that generates the chamber, its weak point is: the charging aperture of friction feeding mechanism adopts conventional seals, and there is not the difference air extractor, cause the joint portion gas leakage between two charge bars, thereby influence the purity and the performance of Nano metal powder.
In addition, traditional arc gum can only move up and down, and can not circumferentially swing, and causes arc gum can not scan whole metal bath, and its device of adjusting arc length up and down is a lever, and arc length constantly changes, and makes the arc burning instability; The forced draft cycling mechanism adopts common cushion rubber to carry out sealing, because being with axle, sealing closely cooperates, and motor revolution height, quick abrasion, its life-span only is 50～60 hours, and can not guarantee air-tightness.
Summary of the invention
The object of the present invention is to provide the continuous production equipment of a kind of good sealing effect, arc stability, Nano metal powder that purity is high, it can be used to prepare Nano metal powder and block.
Technical scheme of the present invention is:
A kind of continuous production equipment of nano metal, comprise powder process mechanism, the forced draft cycling mechanism, the powder-recepting machine structure, packing case, the outlet of described powder process mechanism is connected to the filter of powder-recepting machine structure, the powder-recepting machine structure links to each other with packing case by pipeline, the air inlet of the axial flow blower of described forced draft cycling mechanism, exhaust outlet is respectively by pipeline and powder-recepting machine structure, powder process mechanism connects, powder process mechanism top is fitted with arc gum, powder process mechanism is equipped with and the corresponding continuous feed mechanism of arc gum the bottom, described powder process mechanism, powder-recepting machine structure and packing case are connected to vavuum pump by pipeline respectively, the charging aperture of described continuous feed mechanism is provided with the double sealing cushion rubber, is provided with the difference air extractor between the O-ring seal and communicates with feed cavity;
In addition, magnet fluid sealing is adopted in the sealing of described axial flow blower; Described arc gum adopts ball face sealing; Described arc gum adopts the feed screw nut transmission; Can be provided with in the described packing case and give hold-down mechanism, packing case is provided with outlet and is connected with thermosetting sintering mechanism; Described arc gum quantity is 1～4, and is corresponding one by one with continuous feed mechanism.
The invention has the beneficial effects as follows:
1. good sealing effect, Nano metal powder purity height.Powder process of the present invention mechanism, powder-recepting machine structure and packing case are connected with vavuum pump by pipeline respectively, the charging aperture of continuous feed mechanism is provided with the double sealing cushion rubber, being provided with the difference air extractor between the O-ring seal communicates with feed cavity, thereby overcome the conventional seals in the conventional art, there is not the difference air extractor, cause the joint portion gas leakage between two charge bars, influence the problem of Nano metal powder purity; In addition, magnet fluid sealing is adopted in the sealing of axial flow blower, has overcome owing to adopt common cushion rubber to carry out sealing, sealing is and closely cooperates with axle, quick abrasion, can not guarantee bubble-tight shortcoming, be about 10000 hours its service life, reaches as high as 20000～60000 hours.
2. arc stability.Arc gum of the present invention adopts ball face sealing, arc gum adopts the feed screw nut transmission, having overcome traditional arc gum can only move up and down, can not circumferentially swing, cause arc gum can not scan whole metal bath, its device of adjusting arc length up and down is a lever, and arc length constantly changes, and makes problems such as arc burning instability.
Description of drawings
Fig. 1 is a horizontal layout schematic top plan view of the present invention.
Fig. 2 is an A-A cutaway view among Fig. 1.
Fig. 3 is a forced circulation structural scheme of mechanism among Fig. 1.
The specific embodiment
Embodiment 1
Shown in Fig. 1～3, the present invention includes powder process mechanism 1, forced draft cycling mechanism 2, powder-recepting machine structure 3, packing case 4,1 outlet of described powder process mechanism is connected to the filter 31 of powder-recepting machine structure 3, powder-recepting machine structure 3 links to each other with packing case 4 by pipeline, packing case 4 is provided with outlet and is connected with thermosetting sintering mechanism 7, the air inlet 22 of the axial flow blower 21 of described forced draft cycling mechanism 2, exhaust outlet 23 is respectively by pipeline and powder-recepting machine structure 3, powder process mechanism 1 connects, powder process mechanism 1 top is fitted with two arc gums 11, powder process mechanism is equipped with 1 bottom and arc gum 11 corresponding continuous feed mechanisms 12, described powder process mechanism 1 and powder-recepting machine structure 3 are connected to first vavuum pump 5 by pipeline respectively, packing case 4 is connected to second vavuum pump 6 by pipeline, the charging aperture of described continuous feed mechanism 12 is provided with double sealing cushion rubber 121, is provided with difference air extractor 122 between the O-ring seal and communicates with feed cavity; Magnetic fluid 24 sealings are adopted in the sealing of described axial flow blower 21; Described arc gum 11 adopts sphere 113, sealing ring 114 and ball seat 115 fitted seal; Arc gum 11 adopts the transmission that matches of leading screws 112 and nut 111; Arc gum 11 is by water pipe 116 coolings, and its front end is fixed with tungsten electrode 118 by dop 117; Be provided with in the described packing case 4 and give hold-down mechanism 41.
The course of work of the present invention is:
Start first vavuum pump 5, equipment is pumped into high vacuum, vacuum reaches 0.005Pa, charging into inert gas (Ar gas) pressure from charge valve 9 then is 0.3～0.9 atmospheric pressure, under inert atmosphere, the arc gum 11 at powder process mechanism 1 top, match with powder process mechanism 1 bottom continuous feed mechanism 12, arc gum 11 keeps stable electric arc with charge bar 8 (iron staff), continuous feed mechanism 12 is by the continuous feed of electronic realization charge bar, start the motor 27 of forced draft cycling mechanism 2, its output shaft links to each other with the turning cylinder of axial flow blower 21 by shaft coupling 26, thereby impeller 25 is rotated and is made air-flow successively through powder process mechanism 1, powder-recepting machine structure 3, axial flow blower 21 circulations, when arc gum 11 work, produce plasma arcs, make metallic iron vaporization evaporation, motor speed is 1200 rev/mins, electric current is 400A, and air pressure is 0.8 atmospheric pressure, thereby produces the metal iron particles of 50nm, nanometer metallic iron particle enters the filter 31 of rotation at a high speed, under the cooperation of scraper plate 32, nanometer metallic iron is fallen, nanometer metallic iron can be adorned box by a pair of handle hole 33 of interior dress gloves, be transported to packing case 4, be packaged into bag; In addition, also can by in the packing case give hold-down mechanism 41 with nanometer metallic iron give compress after, deliver to thermosetting sintering mechanism 7 nanometer metallic iron burnt till block.
Difference from Example 1 is to prepare nano metal molybdenum powder and block, and the electrode rotating speed is 1200 rev/mins, and electric current 600A, air pressure are 0.8 atmospheric pressure, produces the metal molybdenum particle of 20nm.
In addition, the arc gum of powder process of the present invention mechanism 1 can be 1～4, corresponding one by one continuous feed mechanism respectively, and charge bar can be unlike material, arc gum is worked simultaneously, thereby produces the composite nanoparticle of different materials.
Claims (6)
1. the continuous production equipment of a nano metal, comprise powder process mechanism (1), forced draft cycling mechanism (2), powder-recepting machine structure (3), packing case (4), described powder process mechanism (1) outlet is connected to the filter (31) of powder-recepting machine structure (3), powder-recepting machine structure (3) links to each other with packing case (4) by pipeline, the air inlet (22) of the axial flow blower (21) of described forced draft cycling mechanism (2), exhaust outlet (23) is respectively by pipeline and powder-recepting machine structure (3), powder process mechanism (1) connects, powder process mechanism (1) top is fitted with arc gum (11), powder process mechanism (1) is equipped with and the corresponding continuous feed mechanism of arc gum (11) (12) bottom, it is characterized in that: described powder process mechanism (1), powder-recepting machine structure (3) and packing case (4) are connected to vavuum pump by pipeline respectively, the charging aperture of described continuous feed mechanism (12) is provided with double sealing cushion rubber (121), is provided with difference air extractor (122) between the O-ring seal and communicates with feed cavity.
2. according to the continuous production equipment of the described nano metal of claim 1, it is characterized in that: be provided with in the described packing case (4) and give hold-down mechanism (41), packing case (4) is provided with outlet and is connected with thermosetting sintering mechanism (7).
3. according to the continuous production equipment of claim 1 or 2 described nano metals, it is characterized in that: magnet fluid sealing is adopted in the sealing of described axial flow blower (21).
4. according to the continuous production equipment of claim 1 or 2 described nano metals, it is characterized in that: described arc gum (11) adopts ball face sealing.
5. according to the continuous production equipment of claim 1 or 2 described nano metals, it is characterized in that: described arc gum (11) adopts the feed screw nut transmission.
6. according to the continuous production equipment of claim 1 or 2 described nano metals, it is characterized in that: described arc gum (11) quantity is 1～4, and is corresponding one by one with continuous feed mechanism (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021448817A CN1301816C (en) | 2002-11-20 | 2002-11-20 | Continuous production equipment for nano metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021448817A CN1301816C (en) | 2002-11-20 | 2002-11-20 | Continuous production equipment for nano metal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1502435A CN1502435A (en) | 2004-06-09 |
| CN1301816C true CN1301816C (en) | 2007-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB021448817A Expired - Fee Related CN1301816C (en) | 2002-11-20 | 2002-11-20 | Continuous production equipment for nano metal |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103962566B (en) * | 2014-05-05 | 2016-03-02 | 大连理工大学 | A kind of multi-source direct-current arc automation nano-powder production system and method |
| CN105483759B (en) * | 2014-09-18 | 2018-01-12 | 有研亿金新材料有限公司 | High-temperature metal product strike off and collection device |
| CN108941604A (en) * | 2018-08-01 | 2018-12-07 | 浙江埃普瑞纳米材料有限公司 | A kind of preparation method of novel simple block nanometer iron powder |
| CN109759600B (en) * | 2019-01-25 | 2024-02-06 | 大连理工大学 | Laser evaporation multi-cavity nano powder preparation device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5460701A (en) * | 1993-07-27 | 1995-10-24 | Nanophase Technologies Corporation | Method of making nanostructured materials |
| CN2239850Y (en) * | 1994-04-27 | 1996-11-13 | 沈阳工业大学 | Formation chamber for continuous producing submicron particle |
| CN2311329Y (en) * | 1997-11-17 | 1999-03-24 | 褚炎明 | Metal superfine powder production equipment |
| US6274875B1 (en) * | 1999-04-19 | 2001-08-14 | Applied Materials, Inc. | Fluid bearing vacuum seal assembly |
| CN2578021Y (en) * | 2002-11-20 | 2003-10-08 | 中国科学院沈阳科学仪器研制中心 | Nano-metal continuous producing apparatus |
-
2002
- 2002-11-20 CN CNB021448817A patent/CN1301816C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5460701A (en) * | 1993-07-27 | 1995-10-24 | Nanophase Technologies Corporation | Method of making nanostructured materials |
| CN2239850Y (en) * | 1994-04-27 | 1996-11-13 | 沈阳工业大学 | Formation chamber for continuous producing submicron particle |
| CN2311329Y (en) * | 1997-11-17 | 1999-03-24 | 褚炎明 | Metal superfine powder production equipment |
| US6274875B1 (en) * | 1999-04-19 | 2001-08-14 | Applied Materials, Inc. | Fluid bearing vacuum seal assembly |
| CN2578021Y (en) * | 2002-11-20 | 2003-10-08 | 中国科学院沈阳科学仪器研制中心 | Nano-metal continuous producing apparatus |
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| CN1502435A (en) | 2004-06-09 |
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