JP3998481B2 - Electric wire recycling apparatus and electric wire recycling method - Google Patents

Electric wire recycling apparatus and electric wire recycling method Download PDF

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Publication number
JP3998481B2
JP3998481B2 JP2002029712A JP2002029712A JP3998481B2 JP 3998481 B2 JP3998481 B2 JP 3998481B2 JP 2002029712 A JP2002029712 A JP 2002029712A JP 2002029712 A JP2002029712 A JP 2002029712A JP 3998481 B2 JP3998481 B2 JP 3998481B2
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electric wire
wire insertion
insertion tube
covered
microwave
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JP2003234032A (en
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達也 加藤
正士 神藤
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Yazaki Corp
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Yazaki Corp
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Priority to JP2002029712A priority Critical patent/JP3998481B2/en
Priority to US10/356,595 priority patent/US7234235B2/en
Priority to DE2003162190 priority patent/DE10362190B4/en
Priority to DE2003104630 priority patent/DE10304630B4/en
Priority to GB0302642A priority patent/GB2387277B/en
Publication of JP2003234032A publication Critical patent/JP2003234032A/en
Priority to US10/777,080 priority patent/US7207101B2/en
Priority to US10/844,337 priority patent/US6868599B2/en
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/78—Arrangements for continuous movement of material
    • H05B6/788—Arrangements for continuous movement of material wherein an elongated material is moved by applying a mechanical tension to it

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Constitution Of High-Frequency Heating (AREA)
  • Processing Of Solid Wastes (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は、被覆電線より導体等を分離回収する電線リサイクル処理装置及び電線リサイクル処理方法に関する。
【０００２】
【従来の技術】
ワイヤーハーネス用等の被覆電線は、殆どリサイクルされていないのが現状であり、省資源化の促進や環境への負荷軽減のためにも被覆電線のリサイクルは重要である。ここで、被覆電線のリサイクルに利用可能な技術としては、特開平７−２１４５５７号公報に開示された樹脂被覆鋼管のリサイクル処理手段・方法がある。このリサイクル手段・方法を簡単に説明すると、樹脂被覆鋼管に高周波誘電加熱を加え、樹脂被覆鋼管の表面を被う被覆樹脂をその溶融温度以上に加熱し、被覆樹脂の内層部分を溶融状態に、被覆樹脂の外層部分を軟化状態とし、このような状態とした被覆樹脂を鋼管より剥ぎ取るものである。
【０００３】
【発明が解決しようとする課題】
このような従来のリサイクル処理手段・方法を被覆電線に適用すると、導体は線状のままで回収されるため、所定のストック形状とするためには再加工する必要がある。又、被覆絶縁体は剥ぎ取られた形状で回収されるが、再利用するために再加熱すると劣化するおそれがあり、再利用に適した状態で回収できない。以上より、被覆電線を効率良く同時に分離・回収することができない。
【０００４】
そこで、本発明は、前記した課題を解決すべくなされたものであり、被覆電線を効率良く同時に分離・回収できる電線リサイクル処理装置及び電線離サイクロ処理方法を提供することを目的とする。
【０００５】
【課題を解決するための手段】
請求項１の発明は、マイクロ波を発生するマイクロ波発生装置と、このマイクロ波発生装置より出力されたマイクロ波が内部の伝送空間を伝搬する導波管同軸変換器と、この導波管同軸変換器の伝送空間に配置され、内部に被覆電線を通すことができる電線挿通管とを備え、前記電線挿通管は、誘電体であることを特徴とする。
【０００６】
この電線リサイクル処理装置では、電線挿通管内に被覆電線の先端部分が位置するよう配置し、前記導波管同軸変換器の伝送空間にマイクロ波を入射すると、被覆電線の導体が同軸管構造の内部導体として作用し、マイクロ波がＴＥＭ波に変換され、ＴＥＭ波の電界によって被覆電線の先端部分で放電が発生して被覆絶縁体が分解し、導体が溶融することから被覆絶縁体と導体を分離でき、且つ、少なくとも導体を再利用に適した形態で回収できる。又、被覆電線の先端部分が電線挿通管内の所定位置に位置するように被覆電線を順次送り込むことにより連続的な処理が可能である。さらに、電線挿通管が誘電体における電磁波の損失によって発熱し、この電線挿通管の熱により被覆絶縁体の分解と導体の溶融が促進される。
【０００７】
請求項２の発明は、請求項１記載の電線リサイクル処理装置であって、前記電線挿通管は、前記導波管同軸変換器の伝送空間の終端位置からマイクロ波の（２ｎ−１）／４・管内波長（ｎ：自然数）の位置に沿って配置されたことを特徴とする。
【０００８】
この電線リサイクル処理装置では、請求項１の発明の作用に加え、被覆電線がマイクロ波の電界の波の腹に位置することからマイクロ波が効率良くＴＥＭ波に変換され、被覆電線の先端部分における放電が大きくなり促進される。
【００１１】
請求項３の発明は、請求項１又は請求項２のいずれかに記載の電線リサイクル処理装置であって、前記電線挿通管の内部は、水素ガス雰囲気とされていることを特徴とする。
【００１２】
この電線リサイクル処理装置では、請求項１又は請求項２のいずれかの発明の作用に加え、被覆絶縁体は主に水素、エチレンガスに分解される。
【００１３】
請求項４の発明は、請求項１又は請求項２のいずれかに記載の電線リサイクル処理装置であって、前記電線挿通管の内部は、大気雰囲気とされていることを特徴とする。
【００１４】
この電線架橋処理方法では、請求項１又は請求項２のいずれかの発明の作用に加え、被覆絶縁体は燃焼して分解される。又、電線挿通管の内部を単に大気に露出させた構成とすれば良い。
【００１５】
請求項５の発明は、マイクロ波を発生するマイクロ波発生装置と、このマイクロ波発生装置より出力されたマイクロ波が内部の伝送空間を伝搬する導波管同軸変換器と、この導波管同軸変換器の伝送空間に配置され、内部に被覆電線を通すことができる電線挿通管とを備えた電線リサイクル処理装置の電線リサイクル処理方法であって、前記電線挿通管内の所定位置に前記被覆電線の先端部分が位置するよう配置し、前記導波管同軸変換器の伝送空間にマイクロ波を入射し、前記被覆電線の先端部分が放電により消滅する毎に新しい先端部分が前記電線挿通管内の所定位置に常に位置するよう順次送り込むことを特徴とする。
【００１６】
この電線リサイクル処理方法では、被覆電線の導体が同軸管構造の内部導体として作用し、マイクロ波がＴＥＭ波に変換され、ＴＥＭ波の電界によって被覆電線の先端部分で放電が発生して被覆絶縁体が分解し、導体が溶融することから被覆絶縁体と導体を分離でき、且つ、少なくとも導体を再利用に適した形態で回収できる。又、被覆電線の先端部分が電線挿通管内の所定位置に位置するように被覆電線を順次送り込むことにより連続的な処理が可能である。
【００１７】
請求項６の発明は、請求項５記載の電線リサイクル処理方法であって、前記電線挿通管は、前記導波管同軸変換器の伝送空間の終端位置からマイクロ波の（２ｎ−１）／４・管内波長（ｎ：自然数）の位置に沿って配置されたことを特徴とする。
【００１８】
この電線リサイクル処理方法では、請求項５の発明の作用に加え、被覆電線がマイクロ波の電界の波の腹に位置することからマイクロ波が効率良くＴＥＭ波に変換され、被覆電線の先端部分における放電が大きくなり促進される。
【００１９】
請求項７の発明は、請求項５又は請求項６のいずれかに記載の電線リサイクル処理方法であって、前記電線挿通管は、誘電体であることを特徴とする。
【００２０】
この電線リサイクル処理方法では、請求項５又は請求項６のいずれかの発明の作用に加え、電線挿通管が誘電体における電磁波の損失によって発熱し、この電線挿通管の熱により被覆絶縁体の分解と導体の溶融が促進される。
【００２１】
請求項８の発明は、請求項５〜請求項７のいずれか１項に記載の電線リサイクル処理方法であって、前記電線挿通管の内部は、水素ガス雰囲気とされていることを特徴とする。
【００２２】
この電線リサイクル処理方法では、請求項５〜請求項７のいずれか１項の発明の作用に加え、被覆絶縁体は主に水素、エチレンガスに分解される。
【００２３】
請求項９の発明は、請求項５〜請求項７のいずれか１項に記載の電線リサイクル処理方法であって、前記電線挿通管の内部は、大気雰囲気とされていることを特徴とする。
【００２４】
この電線リサイクル処理方法では、請求項５〜請求項７のいずれか１項の発明の作用に加え、被覆絶縁体は燃焼して分解される。又、電線挿通管の内部を単に大気に露出させた構成とすれば良い。
【００２５】
【発明の実施の形態】
以下、本発明の一実施形態を図面に基づいて説明する。
【００２６】
図１〜図３は本発明の一実施形態を示し、図１は電線リサイクル処理装置１の概略構成図、図２は電線リサイクル処理装置１の導波管同軸変換器４の構成図、図３は導波管同軸変換器４の要部拡大断面図である。
【００２７】
図１に示すように、電線リサイクル処理装置１は、マイクロ波を発生するマイクロ波発生装置２と、このマイクロ波発生装置２より発生したマイクロ波を伝送させるマイクロ波伝送装置３と、このマイクロ波伝送装置３により伝送されたマイクロ波が導かれ、この導かれたマイクロ波を内部空間で伝搬させる導波管同軸変換器４とから構成されている。
【００２８】
マイクロ波伝送装置３は、マイクロ波の入射側から第１方向結合器５、アイソレータ６，第２方向結合器７，ランスフォーマ８，自動整合器９及びランスフォーマ１０がこの順で連結されて構成されている。このように構成されたマイクロ波伝送装置３は、反射波を発生させることなくマイクロ波をＨ０１波（ＴＥ０１波）で導波管同軸変換器４に向かって伝搬する。
【００２９】
導波管同軸変換器４は、その内部の伝送空間４ａの終端側にショートプランジャ１１を有し、このショートプランジャ１１の可動短絡板１１ａの位置を可変することにより伝送空間４ａの終端位置を所望の位置に可変できるようになっている。導波管同軸変換器４は、矩形状にて形成されており、その内部の伝送空間４ａには電線挿通管１２が配置されている。この電線挿通管１２は、可動短絡板１１ａの位置（伝送空間４ａの終端位置）からマイクロ波の１／４・λｇ（λｇ：管内波長）の位置に沿って配置されている。
【００３０】
電線挿通管１２は、上下位置に配置された銅板フランジ部１３によって導波管同軸変換器４に隙間なく固定されており、内部１２ａに被覆電線Ｗを通すことができるようになっている。電線挿通管１２は、材質が誘電体であり、ガラス（例えばバイレックスガラス）、石英、セラミックスなどによって形成されている。又、電線挿通管１２の内部１２ａは、水素雰囲気とされている。又、被覆電線Ｗは、図３に示すように、中央に配置され、銅材にて形成された線状の導体２０と、この導体２０の外周を被う被覆絶縁体２１とから構成されている。
【００３１】
このように構成された電線リサイクル処理装置１の電線リサイクル作業を説明する。被覆電線Ｗを電線挿通管１２内に挿入し、その先端部分が矩形導波管の接続部から１／４・λ（この実施形態では約３０ｍｍ）位置に位置するよう配置し、導波管同軸変換器４の伝送空間４ａにマイクロ波を入射すると、被覆電線Ｗの導体２０が同軸管構造の内部導体として作用し、マイクロ波がＴＥＭ波に変換され、ＴＥＭ波の電界によって被覆電線Ｗの先端部分で放電が発生して被覆絶縁体２１が分解し、導体２０が溶融する。電線挿通管１２内に配置された被覆電線Ｗの先端部分が放電により消滅すると、被覆電線Ｗの新しい先端部分が矩形導波管の接続部から１／４・λ位置に位置するように送り込み、この被覆電線Ｗの先端部分の送り込み作業を順次行う。以上より、被覆絶縁体２１と導体２０を分離でき、且つ、少なくとも導体２０を再利用に適した形態で回収できるため、被覆電線Ｗを効率良く同時に分離・回収できる。
【００３２】
上記したように、被覆電線Ｗの先端部分が電線挿通管１２内の所定位置に位置するように被覆電線Ｗを順次送り込むことにより連続的な処理が可能である。そして、この電線リサイクル装置１は、少なくともマイクロ波発生装置２と導波管同軸変換器４とを備え、導波管同軸変換器４内に被覆電線Ｗの先端部分を配置できるスペースを確保すれば、被覆電線Ｗの分離・回収処理が可能であるため、電線リサイクル処理装置１をコンパクトに構成できる。
【００３３】
この実施形態では、電線挿通管１２は、導波管同軸変換器４の伝送空間４ａの終端である可動短絡板１１ａの位置からマイクロ波の１／４・λｇの位置に沿って配置されているので、被覆電線Ｗがマイクロ波の電界の波の腹に位置し、マイクロ波が効率良くＴＥＭ波に変換される。従って、被覆電線Ｗの先端部分における放電が大きくなり促進され、被覆絶縁体２１の分解と導体２０の溶融が迅速に行われる。
【００３４】
この実施形態では、電線挿通管１２の材質は誘電体であるので、誘電体における電磁波の損失によって発熱し、この電線挿通管１２の熱により被覆絶縁体２１の分解と導体２０の溶融が促進される。
【００３５】
この実施形態では、電線挿通管１２の内部１２ａは、水素ガス雰囲気とされているので、被覆絶縁体２１は主に水素、エチレンガスに分解されるため、被覆絶縁体２１を主に水素、エチレンガスとして回収できる。導体２０は、溶融された銅として回収され、所望のストック形状で回収可能である。
【００３６】
又、前記実施形態の変形例として、電線挿通管１２の内部１２ａを大気雰囲気としても良い。電線挿通管１２の内部を大気雰囲気とした場合には、被覆絶縁体２１は燃焼して分解されるため、導体２０のみ回収できる。導体２０は、溶融された銅として回収され、所望のストック形状で回収可能である。又、電線挿通管１２の内部１２ａを単に大気に露出させた構成とすれば良いので、電線挿通管１２の内部１２ａを水素雰囲気とする場合に較べて電線リサイクル処理装置１をシンプル、且つ、コンパクトに作成できる。
【００３７】
前記実施形態では、導波管同軸変換器４の伝送空間４ａの終端位置が可動短絡板１１ａの位置であるため、可動短絡板１１ａの位置を可変することにより電線挿通管１２を１／４・λｇの位置に容易に配置できる。
【００３８】
前記実施形態では、電線挿通管１２を１／４・λｇの位置に配置したが、（２ｎ−１）／４・λｇ（但し、ｎ：自然数）の位置に配置すれば良い。つまり、この配置位置であれば被覆電線Ｗをマイクロ波の電界の波の腹に位置させることができ、マイクロ波を効率良くＴＥＭ波に変換できる。
【００３９】
尚、前記実施形態の導波管同軸変換器４は、矩形状にて形成されているが、円筒形状等によって形成しても良い。
【００４０】
尚、前記実施形態では、マイクロ波伝送装置３はマイクロ波をＨ０１波（ＴＥ０１波）で伝搬するが、Ｈ０１波（ＴＥ０１波）以外のＨ波（ＴＥ波）で伝搬しても、又は、Ｅ波（ＴＭ波）で伝搬しても良く、マイクロ波の伝搬状態はマイクロ波伝送路の形態によって適宜決定される。
【００４１】
以上説明したように、請求項１の発明によれば、マイクロ波発生装置と、マイクロ波が内部の伝送空間を伝搬する導波管同軸変換器と、この導波管同軸変換器の伝送空間に配置され、内部に被覆電線を通すことができる電線挿通管とを備えたので、電線挿通管内に被覆電線の先端部分が位置するよう配置し、導波管同軸変換器の伝送空間にマイクロ波を入射すると、被覆電線の導体が同軸管構造の内部導体として作用し、マイクロ波がＴＥＭ波に変換され、ＴＥＭ波の電界エネルギーによって被覆電線の先端部分で放電が発生して被覆絶縁体が分解し、導体が溶融することから被覆絶縁体と導体を分離でき、且つ、少なくとも導体を再利用に適した形態で回収できる。従って、被覆電線を効率良く同時に分離・回収できる。又、被覆電線の先端部分が電線挿通管内の所定位置に位置するように被覆電線を順次送り込むことにより連続的な処理が可能である。又、少なくともマイクロ波発生装置と導波管同軸変換器とを備え、導波管同軸変換器内に被覆電線の先端部分を配置できるスペースを確保すれば、被覆電線の分離・回収処理が可能であるため、電線リサイクル処理装置をコンパクトに構成できる。さらに、電線挿通管の材質は誘電体であるので、請求項１又は請求項２の発明の効果に加え、電線挿通管が誘電体における電磁波の損失によって発熱し、この電線挿通管の熱により被覆絶縁体の分解と導体の溶融が促進される。
【００４２】
請求項２の発明によれば、請求項１記載の電線リサイクル処理装置であって、電線挿通管は、伝送空間の終端からマイクロ波の（２ｎ−１）／４・管内波長（ｎ：自然数）の位置に沿って配置されたので、請求項１の発明の効果に加え、被覆電線がマイクロ波の電界の波の腹に位置することからマイクロ波が効率良くＴＥＭ波に変換されるため、被覆電線の先端部分における放電が大きくなり促進され、被覆絶縁体の分解と導体の溶融が迅速に行われる。
【００４４】
請求項３の発明によれば、請求項１又は請求項２のいずれかに記載の電線リサイクル処理装置であって、電線挿通管の内部を水素ガス雰囲気としたので、請求項１又は請求項２のいずれかの発明の効果に加え、被覆絶縁体は主に水素、エチレンガスに分解されるため、被覆絶縁体を主に水素、エチレンガスとして回収できる。
【００４５】
請求項４の発明によれば、請求項１又は請求項２のいずれかに記載の電線リサイクル処理装置であって、電線挿通管の内部を大気雰囲気としたので、請求項１又は請求項２のいずれかの発明の効果に加え、被覆絶縁体は燃焼して分解されるため、導体のみ回収できる。又、電線挿通管の内部を単に大気に露出させた構成とすれば良いため、装置をシンプル、且つ、コンパクトに作製できる。
【００４６】
請求項５の発明によれば、電線挿通管内の所定位置に被覆電線の先端部分が位置するよう配置し、導波管同軸変換器の伝送空間にマイクロ波を入射し、被覆電線の先端部分が放電により消滅する毎に新しい先端部分が電線挿通管内の所定位置に常に位置するよう順次送り込む電線リサイクル方法であるので、被覆電線の導体が同軸管構造の内部導体として作用し、マイクロ波がＴＥＭ波に変換され、ＴＥＭ波の電界によって被覆電線の先端部分で放電が発生して被覆絶縁体が分解し、導体が溶融することから被覆絶縁体と導体を分離でき、且つ、少なくとも導体を再利用に適した形態で回収できる。従って、被覆電線を効率良く同時に分離・回収できる。又、被覆電線の先端部分が電線挿通管内の所定位置に位置するように被覆電線を順次送り込むことにより連続的な処理が可能である。又、少なくともマイクロ波発生装置と導波管同軸変換器とを備え、導波管同軸変換器内に被覆電線の先端部分を配置できるスペースを確保すれば、被覆電線の分離・回収処理が可能であるため、電線リサイクル処理装置をコンパクトに構成できる。
【００４７】
請求項６の発明によれば、請求項５記載の電線リサイクル処理方法であって、電線挿通管は、伝送空間の終端からマイクロ波の（２ｎ−１）／４・管内波長（ｎ：自然数）の位置に沿って配置されたので、請求項５の発明の効果に加え、被覆電線がマイクロ波の電界の波の腹に位置することからマイクロ波が効率良くＴＥＭ波に変換されるため、被覆電線の先端部分における放電が大きくなり促進され、被覆絶縁体の分解と導体の溶融が迅速に行われる。
【００４８】
請求項７の発明によれば、請求項５又は請求項６のいずれかに記載の電線リサイクル処理方法であって、電線挿通管の材質は誘電体であるので、請求項５又は請求項６のいずれかの発明の効果に加え、電線挿通管が誘電体における電磁波の損失によって発熱し、この電線挿通管の熱により被覆絶縁体の分解と導体の溶融が促進される。
【００４９】
請求項８の発明によれば、請求項５〜請求項７のいずれか１項に記載の電線リサイクル処理方法であって、電線挿通管の内部を水素ガス雰囲気としたので、請求項５〜請求項７のいずれか１項の発明の効果に加え、被覆絶縁体は主に水素、エチレンガスに分解されるため、被覆絶縁体を主に水素、エチレンガスとして回収できる。
【００５０】
請求項９の発明によれば、請求項５〜請求項７のいずれか１項に記載の電線リサイクル処理方法であって、電線挿通管の内部を大気雰囲気としたので、請求項５〜請求項７のいずれか１項の発明の効果に加え、被覆絶縁体は燃焼して分解されるため、導体のみ溶融物として回収できる。又、電線挿通管の内部を単に大気に露出させた構成とすれば良いため、装置をシンプル、且つ、コンパクトに作成できる。
【図面の簡単な説明】
【図１】本発明の一実施形態を示し、電線リサイクル処理装置の概略構成図である。
【図２】本発明の一実施形態を示し、電線リサイクル処理装置の導波管同軸変換器の構成図である。
【図３】本発明の一実施形態を示し、導波管同軸変換器の要部拡大断面図である。
【符号の説明】
１ 電線リサイクル処理装置
２ マイクロ波発生装置
４ 導波管同軸変換器
４ａ 伝送空間
１２ 電線挿通管
１２ａ 電線挿通管の内部
Ｗ 被覆電線[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electric wire recycling apparatus and an electric wire recycling method for separating and collecting a conductor and the like from a covered electric wire.
[0002]
[Prior art]
The present situation is that the coated electric wires for wire harnesses and the like are hardly recycled, and the recycling of the coated electric wires is important for promoting resource saving and reducing the environmental load. Here, as a technique that can be used for recycling the covered electric wire, there is a recycling processing means / method for resin-coated steel pipes disclosed in Japanese Patent Application Laid-Open No. 7-214557. Briefly explaining this recycling means and method, high-frequency dielectric heating is applied to the resin-coated steel pipe, the coating resin covering the surface of the resin-coated steel pipe is heated to the melting temperature or higher, and the inner layer portion of the coating resin is in a molten state. The outer layer portion of the coating resin is softened, and the coating resin in such a state is peeled off from the steel pipe.
[0003]
[Problems to be solved by the invention]
When such a conventional recycling process means / method is applied to a covered electric wire, the conductor is recovered in a linear form, and therefore needs to be reworked to obtain a predetermined stock shape. Further, the coated insulator is recovered in a peeled shape, but may be deteriorated when reheated for reuse, and cannot be recovered in a state suitable for reuse. From the above, it is impossible to efficiently separate and collect the covered electric wires at the same time.
[0004]
Accordingly, the present invention has been made to solve the above-described problems, and an object thereof is to provide an electric wire recycling apparatus and an electric wire separation cycloprocessing method that can efficiently separate and collect coated electric wires at the same time.
[0005]
[Means for Solving the Problems]
The invention according to claim 1 is a microwave generator for generating a microwave, a waveguide coaxial converter in which a microwave output from the microwave generator propagates in an internal transmission space, and the waveguide coaxial An electric wire insertion tube that is disposed in the transmission space of the converter and allows a covered electric wire to pass therethrough, and the electric wire insertion tube is a dielectric .
[0006]
In this wire recycling apparatus, when the microwave is incident on the transmission space of the waveguide coaxial converter, the conductor of the covered wire is placed inside the coaxial tube structure. Acts as a conductor, microwaves are converted into TEM waves, the electric field of the TEM wave generates a discharge at the tip of the coated wire, the coated insulator is decomposed, and the conductor melts, separating the coated insulator from the conductor And at least the conductor can be recovered in a form suitable for reuse. In addition, continuous treatment is possible by sequentially feeding the covered wires so that the tip of the covered wire is located at a predetermined position in the wire insertion tube. Furthermore, the electric wire insertion tube generates heat due to the loss of electromagnetic waves in the dielectric, and the heat of the electric wire insertion tube promotes the decomposition of the covering insulator and the melting of the conductor.
[0007]
Invention of Claim 2 is the electric wire recycling apparatus of Claim 1, Comprising: The said electric wire penetration pipe | tube is (2n-1) / 4 of microwave from the terminal position of the transmission space of the said waveguide coaxial converter. -It is arranged along the position of the guide wavelength (n: natural number).
[0008]
In this electric wire recycling apparatus, in addition to the effect of the invention of claim 1, since the coated electric wire is positioned at the antinode of the electric field of the microwave, the microwave is efficiently converted into the TEM wave, and at the tip portion of the coated electric wire. Discharge is increased and promoted.
[0011]
A third aspect of the present invention is the electric wire recycling apparatus according to the first or second aspect , wherein the electric wire insertion tube has a hydrogen gas atmosphere inside.
[0012]
In this electric wire recycling apparatus, in addition to the operation of the invention according to claim 1 or 2 , the covering insulator is mainly decomposed into hydrogen and ethylene gas.
[0013]
The invention of claim 4 is the electric wire recycling apparatus according to claim 1 or 2 , wherein the inside of the electric wire insertion tube is an air atmosphere.
[0014]
In this wire cross-linking treatment method, in addition to the action of the invention according to claim 1 or 2 , the covering insulator is burned and decomposed. Moreover, what is necessary is just to set it as the structure which exposed the inside of the electric wire penetration tube to air | atmosphere.
[0015]
According to a fifth aspect of the present invention, there is provided a microwave generator for generating a microwave, a waveguide coaxial converter in which a microwave output from the microwave generator propagates in an internal transmission space, and the waveguide coaxial An electric wire recycling method for an electric wire recycling apparatus comprising an electric wire insertion pipe that is arranged in a transmission space of a converter and that allows an electric wire insertion pipe to pass therethrough, wherein the covered electric wire is placed at a predetermined position in the electric wire insertion pipe. Each time the tip portion of the covered electric wire disappears due to discharge, a new tip portion is placed in a predetermined position in the wire insertion tube. It is characterized in that it is sequentially fed so that it is always located at the position.
[0016]
In this wire recycling method, the conductor of the covered wire acts as an inner conductor of the coaxial tube structure, the microwave is converted into a TEM wave, and a discharge is generated at the tip of the covered wire by the electric field of the TEM wave, thereby covering the insulator. Since the conductor is decomposed and the conductor melts, the covering insulator and the conductor can be separated, and at least the conductor can be recovered in a form suitable for reuse. In addition, continuous treatment is possible by sequentially feeding the covered wires so that the tip of the covered wire is located at a predetermined position in the wire insertion tube.
[0017]
A sixth aspect of the present invention is the electric wire recycling method according to the fifth aspect , wherein the electric wire insertion tube has a microwave (2n-1) / 4 from the end position of the transmission space of the waveguide coaxial converter. -It is arranged along the position of the guide wavelength (n: natural number).
[0018]
In this electric wire recycling method, in addition to the effect of the invention of claim 5 , since the coated electric wire is located at the antinode of the electric field of the microwave, the microwave is efficiently converted into the TEM wave, and at the tip portion of the coated electric wire. Discharge is increased and promoted.
[0019]
The invention of claim 7 is the electric wire recycling method according to claim 5 or 6 , wherein the electric wire insertion tube is a dielectric.
[0020]
In this electric wire recycling method, in addition to the operation of the invention according to claim 5 or 6 , the electric wire insertion tube generates heat due to loss of electromagnetic waves in the dielectric, and the heat of the electric wire insertion tube decomposes the covering insulator. And the melting of the conductor is promoted.
[0021]
Invention of Claim 8 is the electric wire recycling method of any one of Claims 5-7, Comprising: The inside of the said electric wire penetration pipe is made into hydrogen gas atmosphere, It is characterized by the above-mentioned. .
[0022]
In this electric wire recycling method, in addition to the action of the invention according to any one of claims 5 to 7 , the covering insulator is mainly decomposed into hydrogen and ethylene gas.
[0023]
A ninth aspect of the present invention is the electric wire recycling method according to any one of the fifth to seventh aspects , wherein the inside of the electric wire insertion tube is an air atmosphere.
[0024]
In this electric wire recycling method, in addition to the action of the invention according to any one of claims 5 to 7 , the coated insulator is burned and decomposed. Moreover, what is necessary is just to set it as the structure which exposed the inside of the electric wire penetration tube to air | atmosphere.
[0025]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0026]
1 to 3 show an embodiment of the present invention, FIG. 1 is a schematic configuration diagram of an electric wire recycling apparatus 1, FIG. 2 is a configuration diagram of a waveguide coaxial converter 4 of the electric wire recycling apparatus 1, and FIG. These are the principal part expanded sectional views of the waveguide coaxial converter 4. FIG.
[0027]
As shown in FIG. 1, a wire recycling apparatus 1 includes a microwave generator 2 that generates a microwave, a microwave transmission device 3 that transmits the microwave generated by the microwave generator 2, and the microwave. The microwave transmitted by the transmission device 3 is guided, and the waveguide coaxial converter 4 is configured to propagate the guided microwave in the internal space.
[0028]
The microwave transmission device 3 includes a first directional coupler 5, an isolator 6, a second directional coupler 7, a lance former 8, an automatic matching unit 9, and a lance former 10 connected in this order from the microwave incident side. Has been. The microwave transmission device 3 configured as described above propagates microwaves toward the waveguide coaxial converter 4 by H 01 waves (TE 01 waves) without generating reflected waves.
[0029]
The waveguide coaxial converter 4 has a short plunger 11 on the end side of the transmission space 4a inside thereof, and the end position of the transmission space 4a is desired by changing the position of the movable short-circuit plate 11a of the short plunger 11. The position can be changed. The waveguide coaxial converter 4 is formed in a rectangular shape, and an electric wire insertion tube 12 is disposed in the transmission space 4a therein. The electric wire insertion tube 12 is arranged along the position of ¼ · λg (λg: wavelength in the tube) of the microwave from the position of the movable short-circuit plate 11a (end position of the transmission space 4a).
[0030]
The electric wire insertion tube 12 is fixed to the waveguide coaxial converter 4 without a gap by a copper plate flange portion 13 arranged at the upper and lower positions, and the covered electric wire W can be passed through the inside 12a. The wire insertion tube 12 is made of a dielectric material such as glass (for example, Vyrex glass), quartz, ceramics, or the like. The interior 12a of the wire insertion tube 12 is a hydrogen atmosphere. Further, as shown in FIG. 3, the covered electric wire W includes a linear conductor 20 that is disposed in the center and is formed of a copper material, and a covering insulator 21 that covers the outer periphery of the conductor 20. Yes.
[0031]
The electric wire recycling operation of the electric wire recycling apparatus 1 configured as described above will be described. The covered electric wire W is inserted into the electric wire insertion tube 12 and arranged so that the tip portion is located at a position of ¼ · λ (about 30 mm in this embodiment) from the connection portion of the rectangular waveguide. When a microwave is incident on the transmission space 4a of the converter 4, the conductor 20 of the covered electric wire W acts as an inner conductor of the coaxial tube structure, the microwave is converted into a TEM wave, and the tip of the covered electric wire W is generated by the electric field of the TEM wave. Discharge occurs at the portion, the covering insulator 21 is decomposed, and the conductor 20 is melted. When the tip end portion of the covered electric wire W arranged in the electric wire insertion tube 12 disappears due to discharge, the new tip portion of the covered electric wire W is sent so as to be located at a 1/4 · λ position from the connection portion of the rectangular waveguide, The feeding operation of the tip end portion of the covered electric wire W is sequentially performed. As described above, since the coated insulator 21 and the conductor 20 can be separated and at least the conductor 20 can be collected in a form suitable for reuse, the coated electric wire W can be efficiently separated and collected simultaneously.
[0032]
As described above, continuous processing is possible by sequentially feeding the covered electric wires W so that the tip end portion of the covered electric wire W is located at a predetermined position in the electric wire insertion tube 12. And this electric wire recycling apparatus 1 is provided with the microwave generator 2 and the waveguide coaxial converter 4 at least, and if the space which can arrange | position the front-end | tip part of the covered electric wire W in the waveguide coaxial converter 4 is ensured. Since the separation / recovery processing of the covered electric wire W is possible, the electric wire recycling apparatus 1 can be configured in a compact manner.
[0033]
In this embodiment, the wire insertion tube 12 is disposed along the position of 1/4 · λg of the microwave from the position of the movable short-circuit plate 11a that is the end of the transmission space 4a of the waveguide coaxial converter 4. Therefore, the covered electric wire W is positioned on the antinode of the microwave electric field, and the microwave is efficiently converted into a TEM wave. Therefore, the discharge at the tip end portion of the covered electric wire W is increased and promoted, and the covering insulator 21 is rapidly decomposed and the conductor 20 is melted.
[0034]
In this embodiment, since the material of the wire insertion tube 12 is a dielectric, heat is generated by the loss of electromagnetic waves in the dielectric, and the heat of the wire insertion tube 12 promotes the decomposition of the covering insulator 21 and the melting of the conductor 20. The
[0035]
In this embodiment, since the inside 12a of the electric wire insertion tube 12 is in a hydrogen gas atmosphere, the covering insulator 21 is mainly decomposed into hydrogen and ethylene gas. Therefore, the covering insulator 21 is mainly composed of hydrogen and ethylene. It can be recovered as a gas. The conductor 20 is recovered as molten copper and can be recovered in a desired stock shape.
[0036]
As a modification of the embodiment, the inside 12a of the wire insertion tube 12 may be an atmospheric atmosphere. When the inside of the electric wire insertion tube 12 is an air atmosphere, the covering insulator 21 is burned and decomposed, so that only the conductor 20 can be recovered. The conductor 20 is recovered as molten copper and can be recovered in a desired stock shape. Also, since the inside 12a of the wire insertion tube 12 may be simply exposed to the atmosphere, the wire recycling apparatus 1 is simpler and more compact than when the inside 12a of the wire insertion tube 12 is in a hydrogen atmosphere. Can be created.
[0037]
In the above embodiment, since the terminal position of the transmission space 4a of the waveguide coaxial converter 4 is the position of the movable short-circuit plate 11a, the position of the movable short-circuit plate 11a is changed to make the wire insertion tube 12 1/4. It can be easily arranged at the position of λg.
[0038]
In the above embodiment, the wire insertion tube 12 is disposed at a position of 1/4 · λg, but may be disposed at a position of (2n-1) / 4 · λg (where n is a natural number). That is, at this arrangement position, the covered electric wire W can be positioned at the antinode of the electric field of the microwave, and the microwave can be efficiently converted into a TEM wave.
[0039]
The waveguide coaxial converter 4 of the above embodiment is formed in a rectangular shape, but may be formed in a cylindrical shape or the like.
[0040]
In the above-described embodiment, the microwave transmission device 3 propagates the microwave by the H 01 wave (TE 01 wave), but may propagate the microwave by an H wave (TE wave) other than the H 01 wave (TE 01 wave). Alternatively, it may propagate by E wave (TM wave), and the propagation state of the microwave is appropriately determined depending on the form of the microwave transmission path.
[0041]
As described above, according to the first aspect of the present invention, the microwave generator, the waveguide coaxial converter in which the microwave propagates in the internal transmission space, and the transmission space of the waveguide coaxial converter are provided. Since it has a wire insertion tube that can pass the covered wire inside, it is placed so that the tip of the covered wire is located in the wire insertion tube, and microwaves are transmitted to the transmission space of the waveguide coaxial converter When incident, the conductor of the covered electric wire acts as an inner conductor of the coaxial tube structure, the microwave is converted into a TEM wave, and the electric field energy of the TEM wave generates a discharge at the tip of the covered electric wire, which decomposes the coated insulator. Since the conductor melts, the covering insulator and the conductor can be separated, and at least the conductor can be recovered in a form suitable for reuse. Accordingly, the coated electric wires can be efficiently separated and collected at the same time. In addition, continuous treatment is possible by sequentially feeding the covered wires so that the tip of the covered wire is located at a predetermined position in the wire insertion tube. In addition, if at least a microwave generator and a waveguide coaxial converter are provided and a space is provided in the waveguide coaxial converter where the tip of the covered wire can be placed, separation and recovery of the covered wire is possible. Therefore, the electric wire recycling apparatus can be configured in a compact manner. Furthermore, since the material of the wire insertion tube is a dielectric, in addition to the effect of the invention of claim 1 or 2, the wire insertion tube generates heat due to loss of electromagnetic waves in the dielectric, and is covered by the heat of the wire insertion tube. The decomposition of the insulator and the melting of the conductor are promoted.
[0042]
According to a second aspect of the present invention, in the electric wire recycling apparatus according to the first aspect, the electric wire insertion tube extends from the end of the transmission space to (2n−1) / 4 · in-tube wavelength (n: natural number) from the microwave. In addition to the effect of the invention of claim 1, since the covered electric wire is located at the antinode of the microwave electric field, the microwave is efficiently converted into a TEM wave. The discharge at the tip of the electric wire is increased and promoted, and the covering insulator is quickly decomposed and the conductor is melted.
[0044]
According to the third aspect of the invention, a wire recycling apparatus according to claim 1 or claim 2, since the inside of the wire insertion pipe disposed in a hydrogen gas atmosphere, according to claim 1 or claim 2 In addition to the effect of any one of the inventions, since the covering insulator is mainly decomposed into hydrogen and ethylene gas, the covering insulator can be recovered mainly as hydrogen and ethylene gas.
[0045]
According to the invention of claim 4 , in the electric wire recycling apparatus according to claim 1 or claim 2, since the inside of the electric wire insertion tube is set to an air atmosphere, the electric wire recycling apparatus of claim 1 or claim 2. In addition to the effects of any of the inventions, the covering insulator is burned and decomposed, so that only the conductor can be recovered. Moreover, since the inside of the wire insertion tube may be simply exposed to the atmosphere, the device can be manufactured in a simple and compact manner.
[0046]
According to invention of Claim 5 , it arrange | positions so that the front-end | tip part of a covered electric wire may be located in the predetermined position in an electric wire penetration pipe, a microwave may inject into the transmission space of a waveguide coaxial converter, Each time it disappears due to electric discharge, it is a wire recycling method that sequentially feeds a new tip so that it is always located at a predetermined position in the wire insertion tube. Therefore, the conductor of the covered wire acts as the inner conductor of the coaxial tube structure, and the microwave The electric field of the TEM wave generates a discharge at the tip of the covered electric wire, the coated insulator is decomposed, and the conductor melts, so that the coated insulator and the conductor can be separated, and at least the conductor is reused. It can be recovered in a suitable form. Accordingly, the coated electric wires can be efficiently separated and collected at the same time. In addition, continuous treatment is possible by sequentially feeding the covered wires so that the tip of the covered wire is located at a predetermined position in the wire insertion tube. In addition, if at least a microwave generator and a waveguide coaxial converter are provided and a space is provided in the waveguide coaxial converter where the tip of the covered wire can be placed, separation and recovery of the covered wire is possible. Therefore, the electric wire recycling apparatus can be configured in a compact manner.
[0047]
According to the invention of claim 6 , in the wire recycling method according to claim 5 , the wire insertion tube is microwave (2n−1) / 4 · in-tube wavelength (n: natural number) from the end of the transmission space. In addition to the effect of the invention of claim 5 , since the coated wire is located at the antinode of the microwave electric field, the microwave is efficiently converted into a TEM wave. The discharge at the tip of the electric wire is increased and promoted, and the covering insulator is quickly decomposed and the conductor is melted.
[0048]
According to the invention of claim 7 , the electric wire recycling method according to claim 5 or 6, wherein the material of the electric wire insertion tube is a dielectric , In addition to the effects of any of the inventions, the wire insertion tube generates heat due to the loss of electromagnetic waves in the dielectric, and the heat of the wire insertion tube promotes the decomposition of the covering insulator and the melting of the conductor.
[0049]
According to the invention of claim 8, a wire recycling method according to any one of claims 5 to 7, since the inside of the wire insertion pipe disposed in a hydrogen gas atmosphere, according to claim 5 wherein In addition to the effect of the invention of any one of Items 7, since the covering insulator is mainly decomposed into hydrogen and ethylene gas, the covering insulator can be recovered mainly as hydrogen and ethylene gas.
[0050]
According to the invention of claim 9, a wire recycling method according to any one of claims 5 to 7, since the inside of the wire insertion pipe and the air atmosphere, claims 5 to In addition to the effect of the invention of any one of items 7 , the coated insulator is burned and decomposed, so that only the conductor can be recovered as a melt. Moreover, since the inside of the wire insertion tube may be simply exposed to the atmosphere, the apparatus can be made simple and compact.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of an electric wire recycling apparatus according to an embodiment of the present invention.
FIG. 2 is a configuration diagram of a waveguide coaxial converter of the electric wire recycling apparatus according to the embodiment of the present invention.
FIG. 3 is an enlarged cross-sectional view of a main part of a waveguide coaxial converter according to an embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Electric wire recycling processing apparatus 2 Microwave generator 4 Waveguide coaxial converter 4a Transmission space 12 Electric wire insertion pipe 12a Inside of electric wire insertion pipe W Covered electric wire

Claims (9)

マイクロ波を発生するマイクロ波発生装置と、このマイクロ波発生装置より出力されたマイクロ波が内部の伝送空間を伝搬する導波管同軸変換器と、この導波管同軸変換器の伝送空間に配置され、内部に被覆電線を通すことができる電線挿通管とを備え、前記電線挿通管は、誘電体であることを特徴とする電線リサイクル処理装置。A microwave generator for generating microwaves, a waveguide coaxial converter in which the microwaves output from the microwave generator propagate in the internal transmission space, and the transmission space of the waveguide coaxial converter And an electric wire insertion pipe through which a covered electric wire can be passed , wherein the electric wire insertion pipe is a dielectric . 請求項１記載の電線リサイクル処理装置であって、前記電線挿通管は、前記導波管同軸変換器の伝送空間の終端位置からマイクロ波の（２ｎ−１）／４・管内波長（ｎ：自然数）の位置に沿って配置されたことを特徴とする電線リサイクル処理装置。  2. The electric wire recycling apparatus according to claim 1, wherein the electric wire insertion tube starts from the end position of the transmission space of the waveguide coaxial converter to (2n−1) / 4 · in-tube wavelength (n: natural number) of microwaves. ) Is disposed along the position of the electrical wire recycling apparatus. 請求項１又は請求項２のいずれかに記載の電線リサイクル処理装置であって、前記電線挿通管の内部は、水素ガス雰囲気とされていることを特徴とする電線リサイクル処理装置。 3. The electric wire recycling apparatus according to claim 1 , wherein the electric wire insertion pipe has a hydrogen gas atmosphere inside. 請求項１又は請求項２のいずれかに記載の電線リサイクル処理装置であって、前記電線挿通管の内部は、大気雰囲気とされていることを特徴とする電線リサイクル処理装置。 3. The electric wire recycling apparatus according to claim 1 , wherein the electric wire insertion tube has an air atmosphere inside. マイクロ波を発生するマイクロ波発生装置と、このマイクロ波発生装置より出力されたマイクロ波が内部の伝送空間を伝搬する導波管同軸変換器と、この導波管同軸変換器の伝送空間に配置され、内部に被覆電線を通すことができる電線挿通管とを備えた電線リサイクル処理装置の電線リサイクル処理方法であって、前記電線挿通管内の所定位置に前記被覆電線の先端部分が位置するよう配置し、前記導波管同軸変換器の伝送空間にマイクロ波を入射し、前記被覆電線の先端部分が放電により消滅する毎に新しい先端部分が前記電線挿通管内の所定位置に常に位置するよう順次送り込むことを特徴とする電線リサイクル処理方法。A microwave generator for generating microwaves, a waveguide coaxial converter in which the microwaves output from the microwave generator propagate in the internal transmission space, and the transmission space of the waveguide coaxial converter An electric wire recycling method for an electric wire recycling apparatus provided with an electric wire insertion pipe through which a covered electric wire can be passed, wherein the tip portion of the covered electric wire is positioned at a predetermined position in the electric wire insertion pipe Then, microwaves are incident on the transmission space of the waveguide coaxial converter, and each time the tip portion of the covered wire disappears due to discharge, a new tip portion is sequentially fed so as to be always located at a predetermined position in the wire insertion tube. An electrical wire recycling method characterized by the above. 請求項５記載の電線リサイクル処理方法であって、前記電線挿通管は、前記導波管同軸変換器の伝送空間の終端位置からマイクロ波の（２ｎ−１）／４・管内波長（ｎ：自然数）の位置に沿って配置されたことを特徴とする電線リサイクル処理方法。6. The electric wire recycling method according to claim 5 , wherein the electric wire insertion tube starts from the end position of the transmission space of the waveguide coaxial converter to (2n−1) / 4 · in-tube wavelength (n: natural number) of microwaves. ) Is disposed along the position of the electric wire recycling method. 請求項５又は請求項６のいずれかに記載の電線リサイクル処理方法であって、前記電線挿通管は、誘電体であることを特徴とする電線リサイクル処理方法。The electric wire recycling method according to any one of claims 5 and 6 , wherein the electric wire insertion tube is a dielectric. 請求項５〜請求項７のいずれか１項に記載の電線リサイクル処理方法であって、前記電線挿通管の内部は、水素ガス雰囲気とされていることを特徴とする電線リサイクル処理方法。 The electric wire recycling method according to any one of claims 5 to 7 , wherein the inside of the electric wire insertion tube is in a hydrogen gas atmosphere. 請求項５〜請求項７のいずれか１項に記載の電線リサイクル処理方法であって、前記電線挿通管の内部は、大気雰囲気とされていることを特徴とする電線リサイクル処理方法。 The electric wire recycling method according to any one of claims 5 to 7 , wherein the inside of the electric wire insertion tube is in an air atmosphere.
JP2002029712A 2002-02-06 2002-02-06 Electric wire recycling apparatus and electric wire recycling method Expired - Fee Related JP3998481B2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP2002029712A JP3998481B2 (en) 2002-02-06 2002-02-06 Electric wire recycling apparatus and electric wire recycling method
US10/356,595 US7234235B2 (en) 2002-02-06 2003-02-03 Wire processing method of cross-linking coated wire
DE2003104630 DE10304630B4 (en) 2002-02-06 2003-02-05 Apparatus and method for recycling plastic coated electrical conductors
GB0302642A GB2387277B (en) 2002-02-06 2003-02-05 Wire processing apparatus and wire processing method
DE2003162190 DE10362190B4 (en) 2002-02-06 2003-02-05 Process for processing cables
US10/777,080 US7207101B2 (en) 2002-02-06 2004-02-13 Wire processing apparatus
US10/844,337 US6868599B2 (en) 2002-02-06 2004-05-13 Wire processing apparatus and wire processing method

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