JPH0634831Y2 - Superconductor sorting device - Google Patents
Superconductor sorting deviceInfo
- Publication number
- JPH0634831Y2 JPH0634831Y2 JP1987106807U JP10680787U JPH0634831Y2 JP H0634831 Y2 JPH0634831 Y2 JP H0634831Y2 JP 1987106807 U JP1987106807 U JP 1987106807U JP 10680787 U JP10680787 U JP 10680787U JP H0634831 Y2 JPH0634831 Y2 JP H0634831Y2
- Authority
- JP
- Japan
- Prior art keywords
- superconductor
- refrigerant
- storage tank
- superconductors
- meissner effect
- 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
Landscapes
- Measuring Magnetic Variables (AREA)
- Control Of Vehicles With Linear Motors And Vehicles That Are Magnetically Levitated (AREA)
- Superconductive Dynamoelectric Machines (AREA)
Description
【考案の詳細な説明】 ［産業上の利用分野］ この考案は、超電導体を非超電導体から選別する装置に
関し、超電導体の確認を行う一般的な手法であるマイス
ナー効果、すなわち超電導体を臨界温度以下に冷却する
と超電導体が磁場を完全に排除し完全反磁性を示す効果
を利用することにより、簡便かつ連続的に選別すること
ができる装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a device for selecting superconductors from non-superconductors, which is a general method for confirming superconductors. The present invention relates to a device capable of simple and continuous selection by utilizing the effect that a superconductor completely eliminates a magnetic field when it is cooled to a temperature equal to or lower than that, and exhibits complete diamagnetism.
［従来技術とその問題点］ 一般に酸化物系超電導体は臨界温度、臨界磁界および臨
界電流が高いことで知られているが、酸化物系超電導体
を各原料から粉末法、あるいは共沈法などで製造する場
合、製造されたものの100％が超電導体になっているわ
けではなく、おおよそ数10％の不純物および非超電導体
を含有している。これらの不純物および非超電導体を含
有したままの超電導体に線材化等の加工を施した場合、
不純物および非超電導体の影響を受け、超電導体加工部
材の特性低下がまぬがれない。[Prior Art and its Problems] Generally, oxide superconductors are known to have high critical temperature, critical magnetic field, and critical current, but oxide superconductors are powdered or coprecipitated from various raw materials. In the case of manufacturing in, the 100% of the manufactured product does not become a superconductor, but it contains approximately several 10% of impurities and non-superconductors. When the superconductor containing these impurities and the non-superconductor is processed into a wire,
Due to the influence of impurities and non-superconductors, the deterioration of the characteristics of the processed superconductor member cannot be avoided.
従来、マイスナー効果を利用して超電導体と非超電導体
とを選別する方法が知られているが、簡易で経済的効果
が高い連続選別装置が無かったために、超電導体の製造
後、それらを選別することなく不純物あるいは非超電導
体を含有しているまま超電導体加工部材として使用され
ており、高特性の超電導体の実現を困難にしていた。Conventionally, a method of selecting superconductors and non-superconductors by utilizing the Meissner effect is known, but since there is no continuous sorting device with a simple and high economic effect, they are sorted after the superconductors are manufactured. Without being used, it is used as a superconductor processed member while containing impurities or non-superconductors, making it difficult to realize a superconductor with high characteristics.
［問題点を解決するための手段］ この考案の選別装置は、超電導体と非超電導体とからな
る選別試料を分散し、かつ超電導体をその臨界温度以下
に冷却する冷媒を貯蔵する貯槽と、この貯槽の底面に設
けられ、超電導体をマイスナー効果により浮上させるた
めの磁石と、マイスナー効果によって冷媒中に浮上した
選別試料中の超電導体を冷媒液面上に搬送する回転カゴ
車を有し、簡便かつ効率よく超電導体を選別できるよう
にした。[Means for Solving Problems] A sorting apparatus according to the present invention comprises a storage tank for dispersing a sorted sample composed of a superconductor and a non-superconductor and storing a refrigerant for cooling the superconductor below its critical temperature, Provided on the bottom surface of this storage tank, a magnet for levitating the superconductor by the Meissner effect, and a rotating basket wheel for transporting the superconductor in the selected sample levitated in the refrigerant by the Meissner effect onto the liquid surface of the refrigerant, The superconductor can be selected easily and efficiently.
以下、本考案を詳しく説明する。Hereinafter, the present invention will be described in detail.
第１図は本考案の選別装置の一例を示すものである。FIG. 1 shows an example of the sorting apparatus of the present invention.
図中符号１は貯槽である。貯槽１はデューア瓶のように
中空構造をもつ断熱槽が望ましい。貯槽１は冷媒２によ
って満たされており、冷媒２は超電導体の臨界温度以下
の温度を実現しうる物質であり、選別試料中の超電導体
の臨界温度により液体ヘリウム、液体窒素、フロン、水
などが使用できるが、選別試料よりも比重が小さいこと
が必要である。Reference numeral 1 in the figure is a storage tank. The storage tank 1 is preferably an adiabatic tank having a hollow structure like a Dewar bottle. The storage tank 1 is filled with a refrigerant 2, and the refrigerant 2 is a substance capable of realizing a temperature below the critical temperature of the superconductor, such as liquid helium, liquid nitrogen, chlorofluorocarbon, and water depending on the critical temperature of the superconductor in the selected sample. Can be used, but it must have a smaller specific gravity than the selected sample.
貯槽１の底部には選別試料中の超電導体にマイスナー効
果を起こさせ、超電導体を冷媒２中に浮上させるための
磁石３が設置されている。磁石３は永久磁石でも電磁石
でもよいが、選別試料中の超電導体の粒度により磁界の
強さが選択され、その設置場所は冷却槽１の内外を問わ
ない。A magnet 3 is installed at the bottom of the storage tank 1 for causing the superconductor in the selected sample to have a Meissner effect and levitating the superconductor in the refrigerant 2. The magnet 3 may be a permanent magnet or an electromagnet, but the strength of the magnetic field is selected depending on the grain size of the superconductor in the selected sample, and its installation location may be inside or outside the cooling tank 1.
貯槽１の中央部には超電導体を採集する回転カゴ車４が
設置されている。この回転カゴ車４は、回転体５と、こ
の回転体５に取り付けられた複数のカゴ６…とからなる
ものである。そしてこの回転カゴ車４は冷媒２中に浸漬
されるので、低温用鋼である９％Ni鋼や18−８ステンレ
ス鋼製などで作られることが好ましい。カゴ６…は上記
低温用鋼などからなる金網で作られ、回転体５の回転方
向に採集口があいており、メッシュの細かさは選別され
る超電導体の粒度より細かいが、必要以上に細かいメッ
シュであると回転する際に貯槽内に乱流を起こし、マイ
スナー効果によって浮上した超電導体と乱流によって浮
上した非超電導体とが混合されてしまうので、極度に細
かいメッシュはさけるべきである。At the center of the storage tank 1, a rotating cart 4 for collecting superconductors is installed. The rotating cart wheel 4 includes a rotating body 5 and a plurality of baskets 6 ... Attached to the rotating body 5. Since the rotating cart 4 is immersed in the refrigerant 2, it is preferably made of low-temperature steel such as 9% Ni steel or 18-8 stainless steel. The basket 6 is made of a wire mesh made of the above-mentioned low temperature steel and has a collection port in the rotating direction of the rotating body 5. The fineness of the mesh is finer than the grain size of the superconductor to be selected, but it is finer than necessary. When a mesh is used, turbulent flow occurs in the storage tank when rotating, and superconductors levitated by the Meissner effect mix with non-superconductors levitated by turbulence, so extremely fine meshes should be avoided.
回転体５もカゴ６…と同様に冷媒中に浸漬されるものな
ので、低温用鋼である９％Ni鋼や18−８ステンレス鋼製
でその中心部で動力モーター等と接続されており、貯槽
１中に乱流を起こさない程度の回転速度で回転するよう
に調節されている。Since the rotating body 5 is also immersed in the refrigerant like the basket 6, it is made of low-temperature steel such as 9% Ni steel or 18-8 stainless steel, and is connected to a power motor etc. It is adjusted so as to rotate at a rotation speed that does not cause turbulent flow.
また貯槽１の上方には選別試料投入管７と選別された超
電導体を収集する受け皿８が設置されている。採集され
た超電導体の受け皿８は回転体５に付随したカゴ６…か
ら冷媒２中より採集された超電導体を受け取りやすいよ
うに回転体５の回転角度に応じて間欠的にカゴ６…の下
部に差し出され、カゴ６…から採集された超電導体粉末
を受け取った後、直ちにカゴ６…の回転の妨げにならな
いように収納されるように構成されている。Further, above the storage tank 1, there are installed a selected sample input pipe 7 and a tray 8 for collecting the selected superconductor. The tray 8 of the collected superconductors intermittently lowers the basket 6 according to the rotation angle of the rotor 5 so that the superconductors collected from the refrigerant 2 can be easily received from the basket 6 attached to the rotor 5. After receiving the superconductor powder collected from the baskets 6 ..., the superconducting powders are immediately stored so as not to hinder the rotation of the baskets 6.
次に、本選別装置を用いての選別作業について説明す
る。Next, a sorting operation using this sorting apparatus will be described.
製造後の加工工程に合わせて適度な粒度に粉砕された選
別試料は選別試料投入管７から順次、貯槽中に投入され
る。投入された選別試料は冷媒２より比重が大きいので
貯槽１の底部に沈降するが、臨界温度まで冷媒２によっ
て冷却された超電導体Ａは貯槽１の底部に設置された磁
石３のマイスナー効果によって磁石３の磁力線に沿って
浮上してくる。一方、非超電導体Ｂは貯槽１の底に沈降
したままである。浮上した超電導体は回転体５に設置さ
れたカゴ６…が回転してくるたびごとに冷媒２中から採
集され受け皿８に落とされ、超電導体加工部材原料にな
る。Sorted samples crushed to an appropriate particle size in accordance with the manufacturing process after manufacturing are sequentially loaded into the storage tank from the sorted sample loading pipe 7. Since the introduced sorted sample has a larger specific gravity than the refrigerant 2, it settles at the bottom of the storage tank 1, but the superconductor A cooled by the refrigerant 2 to the critical temperature is magnetized by the Meissner effect of the magnet 3 installed at the bottom of the storage tank 1. It floats along the magnetic lines of 3. On the other hand, the non-superconductor B remains settled on the bottom of the storage tank 1. Each time the basket 6 installed on the rotating body 5 rotates, the floating superconductor is collected from the refrigerant 2 and dropped into the tray 8 to become a raw material for a superconductor processed member.
［実施例］ Y2O3、BaCO3、CuOの粉末を混合し、800〜1000℃で処理
したＹ−Ba−Cu−Ｏ系超電導体と非超電導体との混合粉
末を約100g、選別試料として用意し、選別試料投入管７
より貯槽１に満たされた冷媒２中に投入した。冷媒２に
はＹ−Ba−Cu−Ｏ系超電導体の臨界温度よりも低温を実
現できる液体窒素を用い、マイスナー効果を起こさせる
磁石３としてアルニコ磁石を用いて選別を行った。９％
Ni鋼製で100メッシュのカゴ６…を具備した回転体５は
３回／分の回転速度で回転し、冷媒２中に浮上した超電
導体粉末を採集した。 Example] Y 2 O 3, BaCO 3 , mixed CuO powder, mixed powder of about 100g of 800 to 1000 Y-Ba-CuO-based superconductor was treated with ℃ and non superconductor, sorting samples Prepared as and select sample injection pipe 7
It was charged into the refrigerant 2 filled in the storage tank 1 more. Liquid nitrogen, which can realize a temperature lower than the critical temperature of the Y-Ba-Cu-O-based superconductor, was used as the refrigerant 2, and Alnico magnet was used as the magnet 3 for causing the Meissner effect. 9%
The rotating body 5 made of Ni steel and provided with a basket 6 of 100 mesh was rotated at a rotation speed of 3 times / minute, and the superconductor powder levitated in the refrigerant 2 was collected.
この結果、受け皿８には約80gの超電導体が収集され
た。受け皿８に収集された超電導体の粉末を使用して超
電導体加工部材を製造し、各種の試験を行った結果、未
選別の超電導体粉末を用いた場合よりも臨界温度、臨界
磁界、臨界電流において特性の向上がみられた。As a result, about 80 g of the superconductor was collected in the tray 8. As a result of manufacturing various superconductor processed members using the superconductor powder collected in the saucer 8 and performing various tests, the critical temperature, the critical magnetic field, and the critical current are higher than in the case of using the unselected superconductor powder. The improvement of the characteristics was observed.
［考案の効果］ 以上説明したように、この考案の超電導体の選別装置
は、超電導体と非超電導体とからなる選別試料を分散
し、かつ超電導体をその臨界温度以下に冷却する冷媒を
貯蔵する貯槽と、この貯槽の底面に設けられ、マイスナ
ー効果により冷媒中に超電導体を浮上させるための磁石
と、マイスナー効果によって冷媒中に浮上した選別試料
中の超電導体を冷媒液面上に搬送する回転カゴ車を有す
るものであるので、非超電導体と超電導体とを、マイス
ナー効果を利用して簡便かつ連続的に選別することがで
きる。よって本考案の装置によれば、超電導体を加工す
る場合、前処理として非超電導体と超電導体との選別を
簡便にかつ連続的に行うことが可能となり、超電導体加
工部材の特性向上が期待できる。[Effects of the Invention] As described above, the superconductor sorting apparatus of the present invention stores a refrigerant that disperses a sorted sample composed of a superconductor and a non-superconductor and cools the superconductor below its critical temperature. A storage tank, a magnet provided on the bottom surface of the storage tank for floating the superconductor in the refrigerant by the Meissner effect, and a superconductor in the selected sample floated in the refrigerant by the Meissner effect on the surface of the refrigerant. Since it has a rotating basket wheel, non-superconductors and superconductors can be easily and continuously selected using the Meissner effect. Therefore, according to the device of the present invention, when processing a superconductor, it is possible to easily and continuously perform the separation between the non-superconductor and the superconductor as a pretreatment, and it is expected that the characteristics of the processed superconductor member will be improved. it can.
第１図は本考案の超電導体の選別装置の一例を示す概略
断面図である。 １…貯槽、 ２…冷媒、 ３…磁石、 ４…カゴ車、 ５…回転体、 ６…カゴ。FIG. 1 is a schematic cross-sectional view showing an example of a superconductor selecting device of the present invention. 1 ... Storage tank, 2 ... Refrigerant, 3 ... Magnet, 4 ... Basket car, 5 ... Rotating body, 6 ... Basket.
───────────────────────────────────────────────────── フロントページの続き (72)考案者 長谷川 正一 東京都江東区木場１丁目５番１号 藤倉電 線株式会社内 (72)考案者 山之内 宏 東京都江東区木場１丁目５番１号 藤倉電 線株式会社内 (56)参考文献 特開 昭63−278568（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of front page (72) Shoichi Hasegawa 1-1-5 Kiba, Koto-ku, Tokyo Fujikura Electric Line Co., Ltd. (72) Hiroshi Yamanouchi 1-1-5 Kiba, Koto-ku, Tokyo Fujikura Electric Wire Co., Ltd. (56) Reference JP-A-63-278568 (JP, A)
Claims (1)
を分散し、かつ超電導体をその臨界温度以下に冷却する
冷媒を貯蔵する貯槽と、 この貯槽の底面に設けられ、マイスナー効果により冷媒
中に超電導体を浮上させる磁石と、 マイスナー効果によって冷媒中に浮上した選別試料中の
超電導体を冷媒液面上に搬送する回転カゴ車とを有する
超電導体の選別装置。1. A storage tank for storing a refrigerant that disperses a selected sample consisting of a superconductor and a non-superconductor and cools the superconductor below its critical temperature, and a refrigerant provided by the Meissner effect provided on the bottom surface of the storage tank. A superconductor selecting device having a magnet for levitating a superconductor therein, and a rotating basket wheel for transporting the superconductor in the selected sample levitated in the refrigerant by the Meissner effect to the liquid surface of the refrigerant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987106807U JPH0634831Y2 (en) | 1987-07-11 | 1987-07-11 | Superconductor sorting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987106807U JPH0634831Y2 (en) | 1987-07-11 | 1987-07-11 | Superconductor sorting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6412651U JPS6412651U (en) | 1989-01-23 |
| JPH0634831Y2 true JPH0634831Y2 (en) | 1994-09-14 |
Family
ID=31340649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987106807U Expired - Lifetime JPH0634831Y2 (en) | 1987-07-11 | 1987-07-11 | Superconductor sorting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0634831Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63278568A (en) * | 1987-05-08 | 1988-11-16 | Hitachi Ltd | How to sort superconducting materials |
-
1987
- 1987-07-11 JP JP1987106807U patent/JPH0634831Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6412651U (en) | 1989-01-23 |
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