JP6941902B1 - 対象物の処理方法および処理装置 - Google Patents
対象物の処理方法および処理装置 Download PDFInfo
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- JP6941902B1 JP6941902B1 JP2020571903A JP2020571903A JP6941902B1 JP 6941902 B1 JP6941902 B1 JP 6941902B1 JP 2020571903 A JP2020571903 A JP 2020571903A JP 2020571903 A JP2020571903 A JP 2020571903A JP 6941902 B1 JP6941902 B1 JP 6941902B1
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Abstract
Description
図1は、実施の形態1における処理装置の構造を示す概略断面図である。図1において、X軸方向は、反応器における側壁部の中心軸に沿った方向である。Y軸方向は、側壁部の径方向である。図1を参照して、処理装置1は、対象物2を処理するための部分である第1部分としての反応器10と、触媒30と、容器40と、を備える。処理装置1は、有機物を有する対象物2において有機物を分解するための装置である。
(装置)
顕微鏡:商品名「TMD−300」,株式会社ニコン
CCDカメラ:商品名「Retiga 2000R(1600×1200pixels)」,Q−Imaging社
画像処理装置:商品名「Image−Pro Plus」,Media Cybernetics社
次に、実施の形態2について説明する。実施の形態2における処理方法は、基本的に実施の形態1と同様の工程を有し、同様の効果を奏する。しかしながら、実施の形態2においては、処理装置1の構成が実施の形態1の場合と異なっている。以下、実施の形態1と異なる点について説明する。
反応槽10の第3内壁面14における第3の面143は、X−Y平面に対して傾斜してもよい。図8は、実施の形態1の処理装置1の変形例を示す概略断面図である。図8を参照して、第2の面142と第3の面143とが接続する領域のZ軸方向における高さが最も低くなり、第2の面142から離れるにしたがって第3の面143のZ軸方向における高さは高くなる。レール80における第1レール81は、第1直線部811と、第3直線部815と、第1傾斜部812と、第2傾斜部814とによって構成されている。第1傾斜部812および第2傾斜部814の一部の領域は、触媒30によって覆われている。第1傾斜部812と第2傾斜部814とを接続する領域上を駆動部44A,44Bが走行する際に、容器40は触媒30の表面から最も深く埋没することとなる。廃基板20の処理において、当初、有機物が完全に分解されずに形成される未分解のガス(例えばメタンガスや一酸化炭素ガス等)が発生する場合がある。上記変形例における構成を採用することで、上記未分解ガスが触媒30によって分解され、未分解のガスの発生を低減させることができる。
次に、本発明の処理装置1の他の実施の形態である実施の形態3について説明する。実施の形態3における処理装置1は、基本的に実施の形態1と同様の構成を有し、同様の効果を奏する。しかしながら、実施の形態3においては、反応槽10およびレール80の構成が実施の形態2の場合と異なっている。以下、実施の形態2と異なる点について説明する。
次に、本発明の処理装置1の他の実施の形態である実施の形態4について説明する。図11は、実施の形態4における処理装置1の構造を示す概略断面図である。図11において、α軸方向は鉛直方向であり、β−γ平面はα軸方向に垂直な面である。図11を参照して、本実施の形態において、処理装置1は、第1部品としての反応器10と、触媒30と、容器40と、羽根部41と、ガス処理部53と、加熱部60と、支持部65と、を備える。
本実施の形態における処理方法により、対象物2における有機物を分解する実験を行った。実験の手順は、以下の通りである。まず、本実験において用いた触媒30としての顆粒体を下記の方法により製造した。硫酸法による酸化チタン製造工程のうち、加水分解工程から得られたチタン水酸化物のスラリーを濾過、水洗し、これをリパルプして、スラリーAを得た。このスラリーAにゾル化剤として硝酸を加え、チタン酸化物のゾルBを得た。更に、このゾルBの一部を100℃に加熱、乾燥し、乾燥ゲルとし、これを電気炉中、500℃で3時間焼成して、酸化チタン焼成物Cを得た。この酸化チタン焼成物Cを粉砕し、得られた粉砕物を(株)ダルトン製高速撹拌造粒機SPG−25型を用いて、撹拌羽250rpm、高速チョッパ3000rpmの条件下、水で5倍希釈した前記ゾルBを噴霧しながら造粒して、酸化チタン粒子を得た。この酸化チタン粒子を100℃で3時間乾燥し、次いで、600℃で焼成し、その後ステンレス製金網からなる標準篩15メッシュ(線径0.5mm、目開き1.19mm)と150メッシュ(線径0.065mm、目開き0.104mm)を用いて篩分けした。15メッシュ下(通過分)および150メッシュ上(残留分)を本実験で用いる顆粒体とした。このようにして酸化チタン製の顆粒体(第1顆粒体)を得た。
次に、廃基板20として実装部品を有さないガラスエポキシ基板を用い、空気の流速を0.5m/min、3.4m/min、5m/min、10m/minと変化させ、それ以外は実験1と同様にして実験を行った。厚みが1.5mmであり、縦約6cm×横約4cmの面積を有するガラスエポキシ基板を用いた。各流速に対する減量率の測定結果を表2に示す。
次に、得られた第1顆粒体1600gを図1に示す反応器10内に配置した。鋼板と、ポリエチレンテレフタレートフィルムと、アルミニウム箔とが積層された樹脂化粧鋼板(縦約5cm×横約5cm)を廃基板20として準備した。樹脂化粧鋼板を触媒30の表面から約50mm埋没させ、樹脂化粧鋼板の表面を触媒30が覆うように樹脂化粧鋼板を配置した。樹脂化粧鋼板をY軸方向に沿って往復させるように約60秒移動させた。空気の流速が2.3m/min、設定温度が500℃の条件で、反応器10内における第1顆粒体全体に亘って第1顆粒体を攪拌する工程を実施することなく、樹脂化粧鋼板の処理を実施した。処理後の樹脂化粧鋼板の状態を目視にて観察した。その結果、樹脂化粧鋼板におけるポリエチレンテレフタレートフィルムは分解され、鋼板とアルミニウム箔とが残存した。
次に、樹脂化粧鋼板の処理条件と同様にして、樹脂が付着する金属製の成型機押出スクリュー部品(縦約4cm×横約4cm×高さ約5cm)を対象物2として処理を実施した。その結果、成型機押出スクリュー部品に付着する樹脂は分解され、成型機押出スクリュー部品のみが残存した。
次に、反応器10内における触媒30全体に亘って触媒30を攪拌することによる触媒30の摩耗の度合いを確認する実験を行った。実験の手順は以下のとおりである。
次に、反応器10内における触媒30全体に亘って触媒30を攪拌する場合と、上記攪拌を実施しない場合とで、未分解のガスが発生する度合いを比較する実験を行った。実験の手順は、以下の通りである。
Claims (5)
- 対象物における有機物を分解するための処理装置であって、
第1凹部を有し、前記対象物を処理するための部分である第1部分と、
前記第1凹部内に収容された状態が維持され、チタンを含む金属酸化物製の顆粒体からなる触媒と、
前記第1部分に接続され、酸素を含むガスを前記第1凹部内に供給する供給部と、
前記触媒および前記ガスの少なくともいずれか一方を加熱する加熱部と、
前記対象物を収容すると共に前記触媒を通すことが可能な形状を有し、少なくとも一部が前記第1凹部内における前記触媒に接触可能な容器と、
前記容器を支持する支持部と、を備え、
前記支持部は、
鉛直方向に対して傾斜する傾斜部を含むレールと、
前記容器に取り付けられ、前記レール上を走行可能な第1部品と、を含み、
前記容器の少なくとも一部が前記第1凹部内における前記触媒に接触している状態、および前記容器が前記触媒に接触していない状態を選択的に取り得るように、前記容器は鉛直方向に沿って移動可能であり、
前記対象物における有機物を分解する際に、前記第1凹部内における全ての前記触媒を攪拌する攪拌羽を備えず、
前記触媒は、前記第1部分内と前記第1部分外との間で循環されるものでない、処理装置。 - 前記容器に取り付けられ、前記レールの進行方向におけるいずれか一方に突出するつば部をさらに備える、請求項1に記載の処理装置。
- 対象物における有機物を分解するための処理装置であって、
第1凹部を有し、前記対象物を処理するための部分である第1部分と、
前記第1凹部内に収容された状態が維持され、チタンを含む金属酸化物製の顆粒体からなる触媒と、
前記第1部分に接続され、酸素を含むガスを前記第1凹部内に供給する供給部と、
前記触媒および前記ガスの少なくともいずれか一方を加熱する加熱部と、
前記対象物を収容すると共に前記触媒を通すことが可能な形状を有し、少なくとも一部が前記第1凹部内における前記触媒に接触可能な容器と、
前記容器を支持する支持部と、を備え、
前記支持部は、前記容器に取り付けられ、鉛直方向に沿って移動可能な第2部品を含み、
前記容器の少なくとも一部が前記第1凹部内における前記触媒に接触している状態、および前記容器が前記触媒に接触していない状態を選択的に取り得るように、前記容器は鉛直方向に沿って移動可能であり、
前記対象物における有機物を分解する際に、前記第1凹部内における全ての前記触媒を攪拌する攪拌羽を備えず、
前記触媒は、前記第1部分内と前記第1部分外との間で循環されるものでない、処理装置。 - 前記容器は、底壁部と、前記底壁部の外縁から鉛直方向に沿って延びる周壁部と、を含み、
前記底壁部の前記周壁部とは反対側に突出し、鉛直方向に垂直な仮想平面に沿って回動可能な羽根部を、さらに備える、請求項3に記載の処理装置。 - 前記酸素を含むガスが、空気である、請求項1から請求項4のいずれか1項に記載の処理装置。
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JP2019093321A (ja) * | 2017-11-20 | 2019-06-20 | 株式会社東芝 | コンクリートの処理方法及び処理装置 |
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Patent Citations (5)
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JPS5876128A (ja) * | 1981-10-30 | 1983-05-09 | Agency Of Ind Science & Technol | 熱分解炉内での塩化水素及び硫黄化合物の除去方法 |
JPH04357002A (ja) * | 1991-02-01 | 1992-12-10 | Nippon Mokuzai Boufu Kogyo Kumiai | 防腐・防虫性木材廃棄物の処理方法 |
JP2005307007A (ja) * | 2004-04-21 | 2005-11-04 | Sakai Chem Ind Co Ltd | 廃プラスチックの分解方法 |
WO2009051253A1 (ja) * | 2007-10-19 | 2009-04-23 | Kusatsu Electric Co., Ltd. | 触媒循環型廃プラスチック・有機物の分解装置及び分解システム |
JP2019093321A (ja) * | 2017-11-20 | 2019-06-20 | 株式会社東芝 | コンクリートの処理方法及び処理装置 |
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