CN203791060U - Device for removing nonmetallic inclusions in metallic powder - Google Patents
Device for removing nonmetallic inclusions in metallic powder Download PDFInfo
- Publication number
- CN203791060U CN203791060U CN201420231747.3U CN201420231747U CN203791060U CN 203791060 U CN203791060 U CN 203791060U CN 201420231747 U CN201420231747 U CN 201420231747U CN 203791060 U CN203791060 U CN 203791060U
- Authority
- CN
- China
- Prior art keywords
- powder
- separation chamber
- separation
- conveyer belt
- voltage corona
- 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.)
- Expired - Lifetime
Links
- 239000000843 powder Substances 0.000 title claims abstract description 46
- 238000000926 separation method Methods 0.000 claims abstract description 53
- 239000002184 metal Substances 0.000 claims abstract description 27
- 229910052755 nonmetal Inorganic materials 0.000 claims abstract description 26
- 239000004020 conductor Substances 0.000 claims abstract description 4
- 239000000428 dust Substances 0.000 claims description 22
- 239000007789 gas Substances 0.000 abstract description 9
- 239000002245 particle Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 239000011261 inert gas Substances 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 2
- 230000005684 electric field Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000005261 decarburization Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Landscapes
- Electrostatic Separation (AREA)
Abstract
A device for removing nonmetallic inclusions in metallic powder comprises a separation chamber. A powder feeding mechanism is arranged at an opening in the upper end of the separation chamber, and a powder collecting tank is arranged on the lower portion of the separation chamber. A gas system and a vacuum system are connected to the separation chamber. An electrostatic separation device is arranged in the separation chamber and comprises a high-voltage corona electrode. A high-voltage rectifier is connected to the high-voltage corona electrode. A conveyer belt made of conducting materials is arranged below the high-voltage corona electrode and is grounded, and the included angle between the conveyer belt and the vertical plane is 20-40 degrees. A powder scraper is arranged in back of the conveyer belt. A waste powder collecting channel is formed below the powder scraper and stretches out of the separation chamber. According to the device, a corona electric field generated by the high-voltage corona electrode enables powder particles to carry electric charges, the contact area of the conveyer belt and the powder is enlarged based on the difference of electrical properties of metal and nonmetal, the number of inclusion removing times is increased through the multistage electrostatic separation device, and therefore the separation effect and the separation efficiency can be obviously improved. The whole separation process is carried out under the protection of inert gas, and therefore secondary pollution can be avoided.
Description
Technical field
The utility model belongs to xenogenesis powder particle separation technology field, is specifically related to a kind of device of removing nonmetal inclusion in metal dust.
Background technology
Along with the development of metal powder metallurgy and rapid shaping (3D printing) technology, particularly, in high-end applications such as Aero-Space and medical treatment, the degree of purity of metal dust is had higher requirement.Nonmetal inclusion is one of pollutant common in metal dust, is the main formation of crack in metal material, can make the performance of part after powder compacting significantly reduce.Therefore, must remove before use the nonmetal inclusion particle in metal dust.
Electrostatic separation technique is current more conventional xenogenesis particulate separation technology, is widely used in the fields such as ore dressing, coal dust decarburization and waste and old circuit board recovery, is particularly suitable for the separation of the particle that dielectric properties difference is larger.At metal dust, remove and be mingled with field, electrostatic separation technique application is less.Existing electrostatic separating device can't meet degree of purity requirement aspect nonmetal inclusion removal effect, and production efficiency is lower, and also can introduce the elemental gas such as oxygen, hydrogen in electrostatic separation process, and metal dust is caused to secondary pollution.
Utility model content
The purpose of this utility model is to provide a kind of device of removing nonmetal inclusion in metal dust, has solved existing electrostatic separating device and aspect nonmetal inclusion removal effect, can not meet degree of purity requirement and can cause the problem of secondary pollution.
The technical scheme that the utility model adopts is, a kind of device of removing nonmetal inclusion in metal dust, comprise separation chamber, upper end open place, separation chamber is provided with powder feeding mechanism, bottom is provided with receives powder tank, separation chamber is connected with gas system and vacuum system, in separation chamber, be provided with electrostatic separating device, electrostatic separating device comprises the high-voltage corona utmost point, the high-voltage corona utmost point is connected with high-voltage rectifier, high-voltage corona utmost point below is provided with the conveyer belt that conductive material is made, conveyer belt ground connection and be 20 °～40 ° angles with vertical direction, after conveyer belt, be provided with powder-scraper, powder-scraper below is provided with useless powder collection channel, useless powder collection channel stretches out outside separation chamber.
Feature of the present utility model is also,
Shou Fenguanyu separation chamber connects by thread seal.
Powder feeding mechanism is placed in inside, separation chamber, is bolted with separation chamber.
Electrostatic separating device is provided with two-stage or more than two-stage.
The beneficial effects of the utility model are, the utility model is removed the device of nonmetal inclusion in metal dust, the corona field producing by the high-voltage corona utmost point makes powder particle carry electric charge, utilize metal and nonmetal electric energy difference, effectively remove nonmetal inclusion in metal dust, by adopting conveyor type design to improve and powder contact area, adopt multistage electrostatic separating device to increase and remove and be mingled with number of times, obviously improve separating effect and the separative efficiency of nonmetal inclusion in powder, in whole separation process, under inert gas shielding, carry out simultaneously, avoid powder second to pollute.
Accompanying drawing explanation
Fig. 1 is the structure chart that the utility model is removed the device of nonmetal inclusion in metal dust.
In figure, 1. separation chamber, 2. powder feeding mechanism, the 3. high-voltage corona utmost point, 4. conveyer belt, 5. powder-scraper, 6. useless powder collection channel, 7. receives powder tank, 8. high-voltage rectifier, 9. gas system, 10. vacuum system, 11. metal dusts, 12, nonmetal inclusion.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
The utility model is removed the device of nonmetal inclusion in metal dust, referring to accompanying drawing 1, comprise separation chamber 1, 1 upper end open place, separation chamber is provided with powder feeding mechanism 2, powder feeding mechanism 2 is placed in 1 inside, separation chamber, be bolted with separation chamber 1, bottom is connected with and is received powder tank 7 by thread seal, separation chamber 1 is connected with gas system 9 and vacuum system 10, in separation chamber 1, be provided with electrostatic separating device, electrostatic separating device comprises the high-voltage corona utmost point 3, the high-voltage corona utmost point 3 is connected with high-voltage rectifier 8, the high-voltage corona utmost point 3 belows are provided with the conveyer belt 4 that conductive material is made, conveyer belt 4 ground connection and be 20 °～40 ° angles with vertical direction, conveyer belt 4 is provided with powder-scraper 5 below, powder-scraper 5 belows are provided with useless powder collection channel 6, useless powder collection channel 6 stretches out outside separation chamber.Electrostatic separating device is provided with two-stage or more than two-stage.
During use, the metal dust that contains nonmetal inclusion is placed in to the opening part of 1 upper end, separation chamber, 1 sealing of Bing Jiang separation chamber, starts vacuum system 10Dui separation chamber and vacuumizes, and the interior vacuum in separation chamber 1 is less than 5 * 10
-3pa closes vacuum system 10, then starts gas system 9 and pour inert protective gas (argon gas or helium) in separation chamber 1, and when separation chamber 1, interior pressure reaches 1.3 * 10
5during Pa (0.13MPa), close gas system 9, opening high-voltage rectifier 8 makes the high-voltage corona utmost point 3 produce high pressure, start conveyer belt 4, open the downward powder feeding of powder feeding mechanism 2, powder obtains electric charge when the corona field producing through the high-voltage corona utmost point 3, and charged powder particle falls to conveyer belt 4, and in nonmetal inclusion 12, electric charge can not pass away and is adsorbed in driving-belt 4 surfaces, by powder-scraper 5, scraped in the wings, fall into useless powder collection channel 6; In metal dust 11, electric charge passes through conveyer belt 4 immediately, and under Action of Gravity Field, landing downwards, falls into next stage electrostatic separation; After secondary or multistage electrostatic separation, metal dust 11 falls into receives powder tank 7, after powder separation completes, receipts powder tank 7 is sealed to Hou Cong separation chamber 1 completely and take off.
The utility model is removed the device of nonmetal inclusion in metal dust; the corona field producing by the high-voltage corona utmost point 3 makes powder particle carry electric charge; utilize metal and nonmetal electric energy difference; effectively remove nonmetal inclusion in metal dust; by adopting conveyor type design to improve and powder contact area; adopt multistage electrostatic separating device to increase and remove and be mingled with number of times; obviously improve separating effect and the separative efficiency of nonmetal inclusion in powder; in whole separation process, under inert gas shielding, carry out, avoid powder second to pollute simultaneously.
Claims (4)
1. a device of removing nonmetal inclusion in metal dust, it is characterized in that, comprise separation chamber (1), upper end open place, described separation chamber (1) is provided with powder feeding mechanism (2), bottom is provided with receives powder tank (7), described separation chamber (1) is connected with gas system (9) and vacuum system (10), described separation chamber is provided with electrostatic separating device in (1), described electrostatic separating device comprises the high-voltage corona utmost point (3), the described high-voltage corona utmost point (3) is connected with high-voltage rectifier (8), the described high-voltage corona utmost point (3) below is provided with the conveyer belt (4) that conductive material is made, described conveyer belt (4) ground connection and be 20 °～40 ° angles with vertical direction, described conveyer belt (4) is provided with powder-scraper (5) below, described powder-scraper (5) below is provided with useless powder collection channel (6), described useless powder collection channel (6) stretches out outside separation chamber (1).
2. the device of nonmetal inclusion in removal metal dust according to claim 1, is characterized in that, described receipts powder tank (7) is connected by thread seal with separation chamber (1).
3. the device of nonmetal inclusion in removal metal dust according to claim 1, is characterized in that, described powder feeding mechanism (2) is placed in inside, separation chamber (1), is bolted with separation chamber (1).
4. the device of nonmetal inclusion in removal metal dust according to claim 1, is characterized in that, described electrostatic separating device is provided with two-stage or more than two-stage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420231747.3U CN203791060U (en) | 2014-05-07 | 2014-05-07 | Device for removing nonmetallic inclusions in metallic powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420231747.3U CN203791060U (en) | 2014-05-07 | 2014-05-07 | Device for removing nonmetallic inclusions in metallic powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203791060U true CN203791060U (en) | 2014-08-27 |
Family
ID=51373335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420231747.3U Expired - Lifetime CN203791060U (en) | 2014-05-07 | 2014-05-07 | Device for removing nonmetallic inclusions in metallic powder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203791060U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104308167A (en) * | 2014-09-25 | 2015-01-28 | 西安欧中材料科技有限公司 | Preparation method of IN718 alloy spherical powder |
| CN104550945A (en) * | 2014-12-29 | 2015-04-29 | 苏州米莫金属科技有限公司 | Powder recycling device |
| CN105170900A (en) * | 2015-09-08 | 2015-12-23 | 宁国市南方耐磨材料有限公司 | Sand mold recovery equipment |
| CN105618775A (en) * | 2016-04-11 | 2016-06-01 | 西安欧中材料科技有限公司 | Method for preparing Ti-6Al-7Nb medical titanium alloy spherical powder |
| CN105839232A (en) * | 2016-05-27 | 2016-08-10 | 石河子大学 | Tower type multi-stage electrostatic zero-damage foreign fiber separating device |
| CN106769348A (en) * | 2016-12-19 | 2017-05-31 | 西安欧中材料科技有限公司 | A kind of method for checking electrostatic separation equipment removal of inclusions ability |
| CN107252734A (en) * | 2017-03-13 | 2017-10-17 | 中国能源建设集团江苏省电力设计院有限公司 | The separator of soot particle and carbon granule in a kind of fly ash in electric power plant |
| CN107309090A (en) * | 2017-06-29 | 2017-11-03 | 西安欧中材料科技有限公司 | Electrostatic separation removes the method and device of high temperature alloy spherical powder nonmetal inclusion |
| CN113856910A (en) * | 2021-09-08 | 2021-12-31 | 西安欧中材料科技有限公司 | Device and method for removing non-metal impurities in high-temperature alloy powder |
-
2014
- 2014-05-07 CN CN201420231747.3U patent/CN203791060U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104308167A (en) * | 2014-09-25 | 2015-01-28 | 西安欧中材料科技有限公司 | Preparation method of IN718 alloy spherical powder |
| CN104550945A (en) * | 2014-12-29 | 2015-04-29 | 苏州米莫金属科技有限公司 | Powder recycling device |
| CN105170900A (en) * | 2015-09-08 | 2015-12-23 | 宁国市南方耐磨材料有限公司 | Sand mold recovery equipment |
| CN105618775A (en) * | 2016-04-11 | 2016-06-01 | 西安欧中材料科技有限公司 | Method for preparing Ti-6Al-7Nb medical titanium alloy spherical powder |
| CN105839232A (en) * | 2016-05-27 | 2016-08-10 | 石河子大学 | Tower type multi-stage electrostatic zero-damage foreign fiber separating device |
| CN106769348A (en) * | 2016-12-19 | 2017-05-31 | 西安欧中材料科技有限公司 | A kind of method for checking electrostatic separation equipment removal of inclusions ability |
| CN107252734A (en) * | 2017-03-13 | 2017-10-17 | 中国能源建设集团江苏省电力设计院有限公司 | The separator of soot particle and carbon granule in a kind of fly ash in electric power plant |
| CN107309090A (en) * | 2017-06-29 | 2017-11-03 | 西安欧中材料科技有限公司 | Electrostatic separation removes the method and device of high temperature alloy spherical powder nonmetal inclusion |
| CN113856910A (en) * | 2021-09-08 | 2021-12-31 | 西安欧中材料科技有限公司 | Device and method for removing non-metal impurities in high-temperature alloy powder |
| CN113856910B (en) * | 2021-09-08 | 2023-09-19 | 西安欧中材料科技有限公司 | Device and method for removing nonmetallic inclusions in superalloy powder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140827 |