JPH01215358A - Method for selecting particulate superconducting material - Google Patents
Method for selecting particulate superconducting materialInfo
- Publication number
- JPH01215358A JPH01215358A JP63040445A JP4044588A JPH01215358A JP H01215358 A JPH01215358 A JP H01215358A JP 63040445 A JP63040445 A JP 63040445A JP 4044588 A JP4044588 A JP 4044588A JP H01215358 A JPH01215358 A JP H01215358A
- Authority
- JP
- Japan
- Prior art keywords
- superconducting
- powder
- superconducting material
- particulate
- raw material
- 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
- 238000000034 method Methods 0.000 title claims description 17
- 239000000463 material Substances 0.000 title abstract description 20
- 239000002994 raw material Substances 0.000 claims abstract description 18
- 230000000694 effects Effects 0.000 claims abstract description 8
- 239000000843 powder Substances 0.000 claims description 50
- 239000008187 granular material Substances 0.000 claims description 15
- 239000002245 particle Substances 0.000 claims description 4
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 abstract description 15
- 238000001816 cooling Methods 0.000 abstract description 9
- 238000007667 floating Methods 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 description 6
- 239000013078 crystal Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000006247 magnetic powder Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/021—Separation using Meissner effect, i.e. deflection of superconductive particles in a magnetic field
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、超電導性粉粒体の分別方法に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for sorting superconducting powder and granules.
近年、超電導材かにわかに注目を集めているが、超電導
材を製造する１つの方法として、Ｙ、 Ｂ、２ Ｃｕ３
０ｙ等からなる超電導性粉粒体を、Ｃｕ等からなる基板
上に溶射して、基板の表面に超電導皮膜を形成する方法
が提案されている。In recent years, superconducting materials have been attracting a lot of attention, and one method for manufacturing superconducting materials is Y, B, 2 Cu3
A method has been proposed in which a superconducting powder made of Oy or the like is thermally sprayed onto a substrate made of Cu or the like to form a superconducting film on the surface of the substrate.
このような超電導材を製造するに当って特に重要なこと
は、°皮膜が良好な超電導特性を有することである。こ
れには、超電導性粉粒体の全量が良好な超電導特性を有
するものであることが不可欠であり、超電導特性を有さ
ないか、良好な超電導特性を有さない粉粒体が１部に含
まれると、皮膜の超電導特性は著しく低下する。即ち、
マイスナー効果（相手側の極性と反対の極性が現われ、
内部に磁力線が通らない現象）を利用して超電導材を磁
気シールド材として使用する場合には、磁気シールド特
性が低下し、また、超電導材をコイル等の電気部品とし
て使用する場合には、臨界電流密度（ＪＣ）および臨界
温度（’ｒｃ）が低い値となる。What is particularly important in producing such superconducting materials is that the film has good superconducting properties. For this purpose, it is essential that the entire amount of superconducting powder and granules have good superconducting properties, and only a portion of the powder and granules do not have superconducting properties or do not have good superconducting properties. If it is included, the superconducting properties of the film will be significantly reduced. That is,
Meissner effect (a polarity opposite to that of the other side appears,
When superconducting materials are used as magnetic shielding materials by taking advantage of the phenomenon in which magnetic lines of force do not pass through the interior, the magnetic shielding properties deteriorate, and when superconducting materials are used as electrical parts such as coils, critical Current density (JC) and critical temperature ('rc) have low values.
粉粒体の分別法として、以下のものがある。There are the following methods for separating powder and granular materials.
（１） ふるい分は法
（２） 比−垂蓋法
（３）磁石による吸着分別法
〔発明が解決しようとする課題〕
しかし、上記（１）〜（３）の方法によって超電導性粉
粒体を分別する場合には、以下の問題がある。(1) The sieve fraction is determined by the method (2) The ratio-caval method (3) The magnetic adsorption separation method [Problem to be solved by the invention] When separating waste, there are the following problems.
（１） ふるい分は法
粉粒体が超電導特性を有するか否かは、粉粒体の元素組
成、結晶構造等に関係し、粉粒体の大きさとは無関係で
ある。従って、ふるい分は法によっては超電導性粉粒体
の分別は不可能である。(1) Whether or not a granular material has superconducting properties is related to the elemental composition, crystal structure, etc. of the granular material, and is unrelated to the size of the granular material. Therefore, it is impossible to separate the superconducting powder from the sieve fraction depending on the method.
（２）比重差法
粉粒体の元素組成、結晶構造によって粉粒体は微小の比
重差を有するので、ある程度分別は可能であるが１分別
速度が遅く且つ分別精度が悪い。(2) Difference in Specific Gravity Method Since powder and granules have minute differences in specific gravity depending on their elemental composition and crystal structure, separation is possible to some extent, but the separation speed is slow and the separation accuracy is poor.
（３）磁石による吸着分別法
磁性粉粒体と非磁性粉粒体とを分別することは可能であ
るが、通常、超電導性粉粒体は磁性を有さないので、こ
の方法による分別は不可能である。(3) Magnetic adsorption separation method Although it is possible to separate magnetic powder and non-magnetic powder, superconducting powder does not usually have magnetism, so separation using this method is not possible. It is possible.
そこで、この発明の目的は、超電導性粉粒体から良好な
超電導特性を有するものだけを正確且つ高能率で分別す
ることができる、超電導性粉粒体の分別方法を提供する
ことにある。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a method for sorting superconducting powder and granules that can accurately and efficiently separate only those having good superconducting properties from superconducting powder and granules.
この発明は、非超電導性粉粒体と超電導性粉粒体とから
なる原料粉粒体を、前記超電導性粉粒体に超電導特性が
現われる温度にまで冷却し、次いで、このようにして冷
却した原料粉粒体を、板状磁石上に供給して、前記超電
導性粉粒体をマイスナー効果により前記板状磁石から浮
上させ、そして、このようＫして浮上した前記超電導性
粉粒体を回収することに特徴を有するものである。In this invention, a raw material powder consisting of a non-superconducting powder and a superconducting powder is cooled to a temperature at which the superconducting powder exhibits superconducting properties, and then cooled in this manner. A raw material powder is supplied onto a plate-shaped magnet, the superconducting powder is levitated from the plate-shaped magnet by the Meissner effect, and the superconducting powder and granule thus levitated is recovered. It is characterized by the fact that
次に、この発明の、超電導性粉粒体の分別方法の一実施
態様を図面を参照しながら説明する。Next, one embodiment of the method for sorting superconducting powder and granular material according to the present invention will be described with reference to the drawings.
第１図は、この発明の、超電導性粉粒体の分別方法の一
実施態様を示す概略断面図である。FIG. 1 is a schematic cross-sectional view showing one embodiment of the method for sorting superconducting powder and granules according to the present invention.
第１図において、原料粉粒体ｌは、非超電導性粉粒体Ｉ
Ａと超電導性粉粒体ＩＢとがらなっており、冷却容器２
内に収容されている。冷却容器２は、超電導性粉粒体Ｉ
Ｂに超電導特性が現われる温度にまで超電導性粉粒体Ｉ
Ｂを冷却する機能を有する。In FIG. 1, the raw material powder l is the non-superconducting powder I.
A and the superconducting powder IB are connected to each other, and the cooling container 2
is housed within. The cooling container 2 contains superconducting powder I
Superconducting powder I up to the temperature at which superconducting properties appear in B
It has the function of cooling B.
フィーダ３は、冷却容器２内の原料粉粒体１をフィーダ
管４を介して、後述する板状磁石の上流端上に供給する
。板状磁石５は、保冷容器６内に傾斜して設置されてい
る。排出樋７．８は、板状磁石５の下流端に傾斜して設
けられている。The feeder 3 supplies the raw material powder 1 in the cooling container 2 via the feeder pipe 4 onto the upstream end of a plate-shaped magnet to be described later. The plate magnet 5 is installed at an angle inside the cold storage container 6. The discharge gutter 7.8 is provided at an angle at the downstream end of the plate magnet 5.
冷却容器２内に収容された原料粉粒体１は、フィーダ管
４を通って保冷容器６内の板状磁石５の上流端上に供給
される。原料粉粒体ｌが板状磁石５上に供給されると、
原料粉粒体１のうちの超電導性粉粒体ＩＢは、マイスナ
ー効果によって板状磁石５から浮上し、一方、非超電導
性粉粒体ＩＡは、板状磁石５上に落下する。板状磁石５
が傾斜しているので、超電導性粉粒体ＩＢは、浮上した
状態で板状磁石５の下流側に向って移動し、排出＠１日
を通って回収容器１０内に排出される。そして、非超電
導性粉粒体ＩＡは、板状磁石５の表面上を板状磁石５の
下流側に向って移動し、排出樋７を通って回収容器９内
に排出される。The raw material powder 1 housed in the cooling container 2 is supplied onto the upstream end of the plate-shaped magnet 5 in the cooling container 6 through the feeder pipe 4 . When the raw material powder l is supplied onto the plate magnet 5,
The superconducting powder IB of the raw material powder 1 floats from the plate magnet 5 due to the Meissner effect, while the non-superconducting powder IA falls onto the plate magnet 5. Plate magnet 5
is inclined, the superconducting powder IB moves toward the downstream side of the plate magnet 5 in a floating state and is discharged into the collection container 10 through discharge@1 day. Then, the non-superconducting powder IA moves on the surface of the plate magnet 5 toward the downstream side of the plate magnet 5, passes through the discharge gutter 7, and is discharged into the recovery container 9.
このようにして、原料粉粒体１は、非超電導性粉粒体Ｉ
Ａと超電導性粉粒体１Ｂとに正確に分別される。In this way, the raw material powder 1 becomes the non-superconducting powder I
The superconducting particles A and the superconducting powder 1B are accurately separated.
上記板状磁石５は、板状永久磁石を使用したもの以外に
、第２図に示すように、複数個の電ｉ石１１を板材１２
の下面に垂直に並べたものによって構成しても良い。ま
た、板状磁石５上の原料粉粒体１の移動手段としては、
板状磁石５を傾斜させる以外に、風力を利用するもの等
であっても良い。In addition to the plate magnet 5 that uses a plate permanent magnet, as shown in FIG.
It may also be constructed by vertically arranging them on the bottom surface of the . Further, as a means for moving the raw material powder 1 on the plate magnet 5,
Instead of tilting the plate magnet 5, wind power may be used.
以上説明したように、この発明によれば、非超電導性粉
粒体と超電導性粉粒体とからなる原料粉粒体から、超電
導性粉粒体のみを容易且つ確実に分別することができる
といったきわめて有用な効果がもたらされる。As explained above, according to the present invention, it is possible to easily and reliably separate only superconducting powder from raw material powder consisting of non-superconducting powder and superconducting powder. A very useful effect is produced.
第１図は、この発明の、超電導性粉粒体の分別方法の一
実施態様を示す断面図、第２図は、同方法に使用する板
状磁石の正面図である。図面において、
１・・・原料粉粒体、 ２・・・冷却容器、３・
・・フィーダ、 ４・・・フィーダ管、５・・
・板状磁石、 ６・・・保冷容器、マ、８・・
・排出樋、 ９．ｌＯ・・・回収容器、１１・
・・電磁石、 １２・・・板材。FIG. 1 is a cross-sectional view showing an embodiment of the method for separating superconducting powder and granules according to the present invention, and FIG. 2 is a front view of a plate-shaped magnet used in the method. In the drawings, 1. Raw material powder, 2. Cooling container, 3.
...Feeder, 4...Feeder pipe, 5...
・Plate magnet, 6... Cold container, M, 8...
・Discharge gutter, 9. lO... Collection container, 11.
...Electromagnet, 12...Plate material.
Claims (1)
粉粒体を、前記超電導性粉粒体に超電導特性が現われる
温度にまで冷却し、次いで、このようにして冷却した原
料粉粒体を、板状磁石上に供給して、前記超電導性粉粒
体をマイスナー効果によつて前記板状磁石から浮上させ
、そして、このようにして前記板状磁石から浮上した前
記超電導性粉粒体を回収することを特徴とする、超電導
性粉粒体の分別方法。1. A raw material powder consisting of a non-superconducting powder and a superconducting powder is cooled to a temperature at which the superconducting powder exhibits superconducting properties, and then the raw material powder thus cooled is The superconducting powder particles are levitated from the plate magnet by the Meissner effect, and the superconducting powder particles floated from the plate magnet in this way. A method for sorting superconducting powder and granules, the method comprising collecting superconducting particles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63040445A JPH01215358A (en) | 1988-02-23 | 1988-02-23 | Method for selecting particulate superconducting material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63040445A JPH01215358A (en) | 1988-02-23 | 1988-02-23 | Method for selecting particulate superconducting material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01215358A true JPH01215358A (en) | 1989-08-29 |
Family
ID=12580845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63040445A Pending JPH01215358A (en) | 1988-02-23 | 1988-02-23 | Method for selecting particulate superconducting material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01215358A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5049540A (en) * | 1987-11-05 | 1991-09-17 | Idaho Research Foundation | Method and means for separating and classifying superconductive particles |
| CN106925420A (en) * | 2017-05-08 | 2017-07-07 | 林建武 | The concentration equipment of impurity in a kind of rare-earth separating permanent-magnet material |
-
1988
- 1988-02-23 JP JP63040445A patent/JPH01215358A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5049540A (en) * | 1987-11-05 | 1991-09-17 | Idaho Research Foundation | Method and means for separating and classifying superconductive particles |
| CN106925420A (en) * | 2017-05-08 | 2017-07-07 | 林建武 | The concentration equipment of impurity in a kind of rare-earth separating permanent-magnet material |
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