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JP4330207B2 - Synthetic resin waste dissolution treatment equipment - Google Patents
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JP4330207B2 - Synthetic resin waste dissolution treatment equipment - Google Patents

Synthetic resin waste dissolution treatment equipment Download PDF

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Publication number
JP4330207B2
JP4330207B2 JP18595499A JP18595499A JP4330207B2 JP 4330207 B2 JP4330207 B2 JP 4330207B2 JP 18595499 A JP18595499 A JP 18595499A JP 18595499 A JP18595499 A JP 18595499A JP 4330207 B2 JP4330207 B2 JP 4330207B2
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Japan
Prior art keywords
impeller
plate
solvent
synthetic resin
waste
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JP18595499A
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Japanese (ja)
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JP2001011234A (en
Inventor
久 海野
隆 瀬古
耕三 森田
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Sankei Giken Kogyo Co Ltd
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Sankei Giken Kogyo Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/62Plastics recycling; Rubber recycling

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  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Description

【0001】
【発明が属する技術分野】
本発明は例えば梱包材や包装材等として使用された発泡ポリスチレン等の合成樹脂廃棄物を溶媒により溶解処理する装置に関する。
【0002】
【従来の技術】
本出願人は先に特願平10−207594号において、溶媒を収容した溶解槽内に合成樹脂廃棄物を投入し、回転する羽根車によって順次破砕し且つ撹拌して合成樹脂廃棄物を溶解処理する装置を提案した。
【0003】
ところが上記のような装置においては、溶媒で溶解可能な合成樹脂廃棄物のみを投入する必要があるが、誤って他の廃棄物等を投入してしまう等のおそれがある。この場合、缶や瓶もしくは木屑等の固い異物等を投入すると、羽根車が変形したり、破損して修理もしくは交換しなければならない。
【0004】
【発明が解決しようとする課題】
本発明は上記の問題点に鑑みて提案されたもので、羽根車の修理・交換等のメンテナンスを容易・迅速に行うことのできる合成樹脂廃棄物の溶解処理装置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】
上記の目的を達成するために本発明による合成樹脂廃棄物の溶解処理装置は、以下の構成としたものである。
【0006】
即ち、溶媒を収容した溶解槽内に合成樹脂廃棄物を投入し、回転する羽根車によって破砕し且つ撹拌して合成樹脂廃棄物を溶解処理する装置であって、上記羽根車を少なくとも一対の側板と、その両側板間に配置される複数枚の羽根板と、上記各側板の外面に配置される鎌状の可動破砕板とで構成し、上記羽根板に形成した突部を、上記両側板および可動破砕板に形成したスリット状の嵌合孔に嵌合すると共に、上記各側板に対して可動破砕板を脱着可能に固着したことを特徴とする。
【0009】
【発明の実施の形態】
以下、本発明による合成樹脂廃棄物の溶解処理装置を図に示す実施形態に基づいて具体的に説明する。
【0010】
図1は本発明による溶解処理装置の一実施形態を示す縦断正面図、図2はその平面図、図3は右側面図、図4は図1におけるA−A線断面図である。
【0011】
図において、1は装置本体フレームで、その周囲の略全面には薄板状の外装材が取付けられているが図には省略した。その本体フレーム1内には、使用済みの発泡ポリスチレン成形体等の廃棄物を溶解する溶解槽2が設けられ、その溶解槽2はステンレス等の金属板材により上面が開口する略箱状に形成されている。また溶解槽2の上部の本体フレームには廃棄物投入口が設けられ、その投入口には開閉扉が設けられているが図には省略した。
【0012】
また溶解槽2の上部には、図1および図4に示すように合成樹脂廃棄物を溶解する溶媒の噴霧ノズル3が多数設けられている。その溶媒として本実施形態においては発砲ポリスチレンを溶解するリモネンが用いられ、図に省略した溶媒貯留タンクから図3に示すポンプ4および供給管5を介して上記各噴霧ノズル3に溶媒が供給され、溶解槽2の上部開口内に広く拡散して供給される。6は上記ポンプ4の駆動モータである。
【0013】
一方、溶解槽2の底部2aは、水平面に対して所定の角度傾斜しており、その傾斜の最も低い位置には、溶媒排出用の凹部2bが設けられている。その凹部2b内には、パンチングメタル等よりなる下部回収容器7が脱着可能に収容配置され、その下部回収容器7で合成樹脂廃棄物に混入した砂やゴミ等が回収される。また上記凹部2bの一端側の溶解槽壁面には図1に示すように排出管8が連通固着され、その排出管8を介して前記ポンプ4により合成樹脂廃棄物を溶解した溶媒を図に省略した回収タンクに回収する構成である。
【0014】
また溶解槽2内の略中央部には、廃棄物を破砕し撹拌する羽根車10が設けられ、溶解槽2の側方に配置したモータ9によって所定の速度で回転駆動する構成である。その羽根車10は本実施形態においては、図1および図5に示すように筒軸15上に所定の間隔をおいて4つ設けられている。その各羽根車10は図7に示すように一対の側板11・11と、その両側板11・11間に配置される複数枚の羽根板12と、上記各側板11の外面に配置される鎌状の可動破砕板13とよりなる。
【0015】
上記各羽根板12の幅方向両側には矩形の突部12aが、また各側板11および可動破砕板13には上記突部12aが係合するスリット状の係合孔11a・13aが、それぞれレーザーカット等により精度よく形成されており、上記各突部12aを係合孔11a・13aに係合すると共に、各側板11を前記筒軸15に溶接等で固着し、かつ上記各側板11と可動破砕板13とに形成した多数の小孔11b・13bにリベット14を挿通してかしめることによって一体化されている。そのリベット14を工具等で破断することによって可動破砕板13は側板11に対して脱着可能である。
【0016】
上記筒軸15の両端部には、図5に示すように筒軸15の内径と同等もしくはそれよりも小径の支軸16が脱着可能に連結され、その各支軸16および軸受部材20を介して上記羽根車10が溶解槽2に回転可能に軸受支持されている。上記各支軸16は、図示例においては短筒状のカラー17を介して筒軸15の両端部内面に保持され、その筒軸15と支軸16およびカラー17とを貫通する連結ピン18で脱着可能に連結されている。18aはその連結ピン18の抜け止め係止クリップである。
【0017】
上記軸受部材20は、図5および図6に示すように溶解槽2の内側と外側に配置した一対の軸支持部材21・22とピロブロック23とよりなる。その一方の軸支持部材21はそれと一体に設けた円形の突部21aを溶解槽2に形成した上記突部21aと略同径同大の孔2cに嵌合することによって精度よく位置決め保持され、他方の軸支持部材22は上記軸支持部材21にねじ24で取付けられている。また上記ピロブロック23は軸支持部材22に形成した凹部22aに嵌合保持されている。図5において左側の軸受部材20も上記と同様に構成されている。
【0018】
また前記筒軸15の両端部に設けた一対の支軸16のうち一方(図5で右側)の支軸16は前記モータ9の出力軸9aにカップリング材25を介して脱着可能に連結されている。なお、そのモータ9は、本実施形態においては過負荷が掛かって停止した場合などに逆転できるように可逆転式のモータが用いられ、常時は羽根車10を図4において矢印a方向に回転するように構成されている。
【0019】
さらに前記各羽根車10には、前記一対の側板11・11と複数枚の羽根板12とによってバケット状の凹部Pが形成され、その凹部Pは後述する滝落とし用の凹部として機能する。また前記鎌状の各可動破砕板13の外周縁部13cは回転方向(図4で矢印a方向)前側に行くに従って内方に湾曲している。すなわち回転方向前側に行くに従って筒軸15からの距離が漸次短くなるように形成されている。さらに上記各外周縁部13cにはV字状の切欠き凹部13dがそれぞれ2つずつ形成されている。
【0020】
一方、上記羽根車10の近傍には、羽根車10の可動破砕板13との共働で廃棄物を破砕する固定破砕板31〜33が設けられ、本実施形態においては図1に示すように前記筒軸15の長手方向略中央部に対応する位置に配置した破砕板31と、その両側に配置した破砕板32・32、および更にその外側に配置した破砕板33・33の3種類5枚の固定破砕板が設けられている。
【0021】
上記各固定破砕板31〜33には、図1および図に示すように破砕用突部31a〜33aが一体に設けられ、その破砕用突部31a〜33aは羽根車10の回動軌跡に沿う円弧状のガイド板34に形成したスリット状の貫通孔34aから羽根車10側に突出している。その各破砕用突部31a〜33aの位置および形状が異なる以外は上記各固定破砕板31〜33は同一形状に形成されている。
【0022】
上記破砕用突部31a〜33aのうち、中央の突部31aが最も高い位置で、かつ羽根車10の回転方向に向かって最も後ろ側に位置し、次いでその両側の突部32aがそれよりも低く且つ羽根車10の回転方向前に位置し、さらにその外側の突部33aが最も低く且つ羽根車10の回転方向前側に位置するように順にずらして設けると共に、隣り合う破砕用突部31a〜33a間に羽根車10が位置するように構成されている。
【0023】
上記各固定破砕板31〜33の下部および背面側には、上記ガイド板34と共に各固定破砕板31〜33を連結保持するベース板35と横板36とが設けられている。そのベース板35と固定破砕板31〜33とは、図に示すように各固定破砕板31〜33に形成した突出片31b〜33b(31b、32bは不図示)をベース板35に形成したスリット状の係合孔35aに係合させて連結保持させた構成であり、また上記横板36は各固定破砕板31〜33の背面側に形成した切込溝31c〜33c(31c、32cは不図示)に係合保持させた構成である。
【0024】
上記固定破砕板31〜33やガイド板34、ベース板35および横板36は、本実施形態においてはレーザーカットにより精度よく形成されており、それによって前記貫通孔30aと破砕用突部31a〜33a、突出片31b〜33bと係合孔34a、および切込溝31c〜33cと横板36とは、互いにガタツキなく精度よく嵌合もしくは係合している。
【0025】
上記各固定破砕板31〜33は、それらを連結保持する上記ガイド板34やベース板35および横板36と共に1つのユニットとして構成され、上記ベース板35を、溶解槽2の底部2a上に溶接等で一体的に設けた板状の台座37にボルト38等で固定することによって脱着可能に取付けられている。
【0026】
さらに上記各固定破砕板31〜33には、図4および図に示すように開口31d〜33dが形成され、それらの開口を貫通するようにしてリモネン等の溶媒を暖めるためのヒータ40が設けられている。そのヒータ40は図4において前後方向に迂回する管路41を設けて、図に省略したボイラ等からの温水を上記管路41内に循環させる構成である。
【0027】
また上記固定破砕板31〜33の上部には、溶媒中に浮遊するゴミ等の浮遊物を回収する上部回収容器45が脱着可能に設けられている。その回収容器45は図示例においては横断面逆台形状の枠体45aの上面を除く前後左右および下面に網45bを張設した構成であり、その枠体45aの長手方向両端部には取っ手45cが設けられている。
【0028】
前記の各羽根車10が上記ガイド板34に沿って回動する際、各羽根車10の外側の羽根板12と一対の側板11・11およびガイド板34とで囲まれた領域には、図10に示すように断面略V字状の溶媒汲み上げ用の凹部Qが形成され、その汲み上げ凹部Q内に溜まった溶媒Sが羽根車10の回転に伴って上部回収容器45に向かって移動することによって該容器45内に溶媒Sが流入し、それによって溶媒S中のゴミ等が回収容器45で捕捉されて回収される構成である。
【0029】
上記の構成において、例えば使用済みの発泡ポリスチレン等の合成樹脂廃棄物をリモネン等の有機溶媒で溶解処理するにあたっては、前記モータ6を駆動してポンプ4を作動させ、新しい溶媒を供給管5を介して噴霧ノズル3から溶解槽2内に噴出供給する。その際、前回の溶解処理で羽根車10や回収容器7・45に古い溶媒が付着している場合には、噴霧ノズル3を溶解槽2の上部に設けたことによって上記の古い溶媒を流し取ることができる。
【0030】
上記のようにして溶解槽2内に所定の初期レベルまで溶媒が供給されたところで、本体フレーム1の上部の廃棄物投入口(不図示)から溶解槽2内に廃棄物Wを投入する。そのとき羽根車10は、図4に示す定位置で停止するように設定されており、この定位置は羽根車10の上部の溶解槽2内の空間が広く空いた状態となり、廃棄物を最も多く投入することができる。
【0031】
上記溶解槽2内に廃棄物を投入し終わったところで投入口の開閉扉(不図示)を閉め前記モータ9を駆動して羽根車10を回転させるもので、そのモータは上記開閉扉を閉めたとき自動的に駆動するように構成することもできる。その場合、安全のため開閉扉2を閉じてから数秒後に羽根車10が回転するように構成するのが好ましい。ただし、コンベア等を用いて自動投入する構成とし、投入口の周囲を柵等で囲って安全が確保されれば上記の限りではない。
【0032】
上記のようにして羽根車10が回転すると、その羽根車10の羽根板12と可動破砕板13等によって廃棄物が溶媒中に順次押し込まれる。そのとき溶解槽2の側板の内面に付着した廃棄物は鎌状の可動破砕板13の先端部で順次掻き落とされ、その先端部で掻き落とされなかった廃棄物は可動破砕板13のV字型切欠き凹部13dによって溶媒中に押し込まれる。
【0033】
その溶媒中に押し込まれた廃棄物は、羽根車10の可動破砕板13と固定破砕板31〜33とによって順次切断され、これを繰り返すことによって次第に細かく破砕されていく。その際、上記破砕板31〜33の羽根車10に対する位置は前述のように羽根車10の回転方向にずらして配置されているので、羽根車10に一度に大きな力が作用するのが防止され、モータに掛かる負荷が軽減される。
【0034】
上記の廃棄物の破砕動作は、主として溶媒内で行われるので、廃棄物がバタついたり、跳ねることなくスムースに行うことができ、静電気も発生しない。また溶媒中に押し込まれた廃棄物は、その溶媒で徐々に溶解されると共に、上記の破砕によって溶媒との接触面積が増大して溶解が促進される。
【0035】
また羽根車10が前記のように回転することによって、図9に示すように側板11・11と羽根板12とで形成された前記滝落とし用の凹部Pが溶媒内に浸入したのち溶媒の液面上方に露出して再び溶媒内に浸入する。これを繰り返すことによって上記凹部P内に溜まった溶媒Sが廃棄物に滝落とし状に振りかけられると共に、溶媒が撹拌されて廃棄物の溶解速度が増大される。
【0036】
さらに溶媒加熱用のヒータ40を設けたことによって、リモネン等の溶媒が効率よく暖められて、発泡ポリスチレン等の合成樹脂廃棄物をさらに効率よく溶解することが可能でる。また発泡ポリスチレンの溶解率が例えば20〜30重量%程度になるとリモネン等の有機溶媒の粘度も新液時より非常に高くなるため、廃液も困難となるが、温水循環方式で暖めることにより粘度が下がり、廃液がスムーズに行われる。また直接熱が有機溶媒に伝わらず、温水式の放熱により両側から熱が伝わるので非常に安全であり熱効率もよい。
【0037】
前記羽根車10の回転で、前記ガイド板34と、羽根車10の一対の側板11・11および羽根板12とで形成される前記の溶媒汲み上げ用凹部Qが上記ガイド板34に沿って上昇移動し、上部回収容器45の側方まで移動したところで上記凹部Q内に溜まった溶媒Sが回収容器45内に流入して濾過される。これを繰り返すことによって溶媒S中に浮遊するゴミ等を順次回収容器45で捕捉して回収することができる。なお上記の回収容器45を透過して下方に流出した溶媒は、ガイド板34の下面側を通って順次羽根車10の下方に移動し、その付近の溶媒と合流して循環を繰り返す。
【0038】
また溶解槽2内に前記廃棄物と共に砂や小石等が投入されて溶媒に混入した場合には、それらは溶媒内を徐々に下降して溶解槽底部2aに沈殿した後、溶媒の流れと共に底部2aの傾斜面に沿って排出通路2bに向かって移動し、その通路2b内に設けた下部回収容器7で回収される。その下部回収容器7および上部回収容器45に回収した砂やごみ等は、例えば溶解処理終了後に回収容器と共に溶解槽2から取り出して廃棄することができる。また必要に応じて例えば上記回収容器内や溶解槽底部等に永久磁石などを設置しておけば、金属の異物を吸着することもできる。
【0039】
なお羽根車10が回転している状態で、例えば羽根車10と溶解槽2の側板内面との間に廃棄物が挟まってモータ9が停止してしまった場合には、モータ9を逆転させることによって廃棄物を反対方向に回動させて取り除くことができる。その際、羽根車10の可動破砕板13の外周縁部13cは前述のように回転方向前側に行くに従って半径方向内方に湾曲しているので、羽根車10を逆転したときには上記外周縁部13cは溶解槽内面との間に挟まった廃棄物から離れる傾向となるので、逆転動作をスムースに行うことができる。羽根車10と前記ガイド板34との関係についても同様であり、羽根車10とガイド板34とのクリアランスは、前述のように羽根車10の回転方向下流側に行くに従って小さくなり、逆転したときには回転方向前側に行くに従ってクリアランスが大きくなるのでスムースに逆転させることができる。
【0040】
また上記のように廃棄物が挟まる等してモータに過負荷が作用したときには、それを自動的に検知してモータを停止させるようにしてもよく、さらに必要に応じてモータを自動的に逆転させるように構成こともできる。例えば何らかの原因でモータ等に過負荷が掛かった場合に羽根車の回転を一旦停止し、次いで例えば1/2回転ほど逆回転を行った後、再び正運転を試みる。これを例えば3回程度行っても過負荷が解消されない場合は自動停止させるようにすればよい。本実施形態においては上記の操作で殆どの過負荷は解消される構造となっている。
【0041】
上記のようにして溶解槽2内に投入した合成樹脂廃棄物を溶媒によって順次溶解し、所定量の廃棄物が溶解されたところで、羽根車10の回転を停止させる、あるいは警報等を発して溶媒交換を促す。その手段としては、例えば廃棄物が溶解して体積が増大した溶媒の量を、溶解槽外部に設置したガラス管式液面センサ等で検知し、それに基づいて羽根車の駆動モータを停止させたり、溶媒交換を報知する。また上記ガラス管に溶媒の上限許容レベルを表記し、そのレベルに溶媒の液面が達したら溶媒交換等を促す、あるいは自動的に交換するように構成することもできる。
【0042】
次に、羽根車10が停止したところで、廃棄物を溶解した溶解槽2内の溶媒を溶解槽2の底部に連通接続した排出管8から前記ポンプ4により図に省略した回収タンク内に回収する。その際、前記回収容器7・45で捕捉できなかったゴミ等は上記排出管8と回収タンクとの間に防塵フィルタ等を設けることによって回収することもできる。また回収容器7・45内に捕捉されたゴミ等は、それらの容器を図に省略した廃棄物投入口もしくはメンテナンス用開口等から取り出すことによって容易に除去することができると共に、つぎに新規な溶媒を溶解槽内に噴出させる際に清掃することができる。又そのとき排出時に生じるポンプ内の汚れを除去することもできる。
【0043】
上記のようにして羽根車10の可動破砕板13と固定破砕板31〜33とで合成樹脂廃棄物を順次破砕して溶媒で溶解する際に、合成樹脂廃棄物と共に缶や瓶もしくは木屑等の固い異物が溶解槽2内に進入して羽根車10や筒軸15等が変形もしくは破損等した場合には以下のようにして補修もしくは交換することができる。
【0044】
例えば羽根車10の可動破砕板13を補修もしくは交換する必要がある場合には、可動破砕板13と側板11とを連結する前記リベットを工具等で切断除去して可動破砕板13を取り出し、適宜補修もしくは交換して新たにリベットで側板11に固着すればよい。その際、隣り合う羽根車10・10間および最外側の羽根車10と溶解槽内面との間隔は、リベットかしめ用のスパナ等が充分に入る大きさに形成されているので何ら支障なく取付けることができる。
【0045】
また上記羽根車10を筒軸15と共に溶解槽2から取り出す必要がある場合には、筒軸15とその両端部に設けた支軸16との連結を解除すればよく、図示例においては連結ピン18の抜け止め係止クリップ18aを引き抜き、連結ピン18を引き抜く、またモータ9の出力軸9aに連結した支軸16にあっては該出力軸9aとの連結用カップリング材25による連結状態を解除する。そして上記両支軸16を筒軸15内に移動すれば、その筒軸15および支軸16を含めて回転翼10を溶解槽10から取り出すことができる。
【0046】
さらに前記固定破砕板31〜33が変形もしくは破損等して補修もしくは交換する必要がある場合には、それらの固定破砕板31〜33を支持する前記ベース板35の固定ボルト38を台座37から外し、そのベース板35や前記ガイド板34等と共にユニット化された固定破砕板31〜33を溶解槽2から取り出すことができる。
【0047】
以上のように本発明のおいては、羽根車10の可動破砕板13や羽根車10全体および固定破砕板31〜33を容易に溶解槽2から取り出して補修もしくは交換することができるものである。なお羽根車10全体および固定破砕板31〜33を溶解槽2から取り出して補修もしくは交換した後は、上記と逆の順序で組み付ければよい。
【0048】
また前記羽根車10の筒軸15の両端部に設けた支軸16を、軸受部材20を介して軸受支持させ、その軸受部材に形成した突部21aを溶解槽に形成した孔2cに嵌合保持させるようにしたことによって上記支軸16を所定の位置に精度よく且つ簡単・確実に位置決め保持させることができる。
【0049】
さらに羽根車10の羽根板12に形成した突部12aを側板11および可動破砕板13に形成したスリット状の係合孔11a・13aに嵌合させるようにしたことによって、上記羽根車10、特に可動破砕板13の強度を増大させることができる。また羽根車10の各側板11と羽根板12および可動破砕板13を上記実施形態のようにレーザーカット等により精度よく形成すればガタツキなく更に強固に結合することが可能となる。前記ガイド板34および固定破砕板31〜33についても同様である。
【0050】
【発明の効果】
以上説明したように、本発明による合成樹脂廃棄物の溶解処理装置は、前記の構成であるから、羽根車10の可動破砕板13や羽根車全体が変形もしくは破損して補修もしくは交換する必要がある場合にも可動破砕板13のみ、もしくは羽根車全体を溶解槽2内から容易に取り出して補修・交換等を行うことができるもので、メンテナンス性が向上し、この種の溶解処理装置の維持・管理を容易・迅速に行うことができる等の効果がある。
【図面の簡単な説明】
【図1】 本発明による合成樹脂廃棄物の溶解処理装置の一実施形態を示す縦断正面図。
【図2】 上記溶解処理装置の平面図。
【図3】 上記溶解処理装置の右側面図。
【図4】 図1におけるA−A線断面図。
【図5】 上記溶解処理装置における羽根車およびその駆動機構の一部縦断正面図。
【図6】 その一部の拡大図。
【図7】 羽根車の分解斜視図。
【図8】 固定破砕板の配置構成を示す拡大図。
【図9】 廃棄物への溶媒滝落とし動作の説明図。
【図10】 上部回収容器への溶媒導入動作の説明図。
【符号の説明】
1 装置本体フレーム
2 溶解槽
3 溶媒噴霧ノズル
4 ポンプ
5 溶媒供給管
6 ポンプ駆動用モータ
7 下部回収容器
8 排出管
9 羽根車回転用モータ
10 羽根車
11 側板
12 羽根板
13 可動破砕板
14 リベット
15 筒軸
16 支軸
20 軸受部材
21、22 軸支持部材
25 カップリング材
31〜33 固定破砕板
34 ガイド板
40 ヒータ
45 上部回収容器
[0001]
[Technical field to which the invention belongs]
The present invention relates to an apparatus for dissolving a synthetic resin waste such as expanded polystyrene used as a packaging material or packaging material with a solvent.
[0002]
[Prior art]
In Japanese Patent Application No. 10-207594, the present applicant previously charged synthetic resin waste into a dissolution tank containing a solvent, and sequentially crushed and stirred with a rotating impeller to dissolve the synthetic resin waste. Proposed device to do.
[0003]
However, in the apparatus as described above, it is necessary to input only synthetic resin waste that can be dissolved in a solvent, but there is a risk that other waste or the like may be erroneously input. In this case, if a hard foreign object such as a can, a bottle, or wood waste is introduced, the impeller is deformed or damaged and must be repaired or replaced.
[0004]
[Problems to be solved by the invention]
The present invention has been proposed in view of the above-described problems, and an object thereof is to provide a synthetic resin waste dissolution treatment apparatus capable of easily and quickly performing maintenance such as repair and replacement of an impeller. .
[0005]
[Means for Solving the Problems]
In order to achieve the above object, a synthetic resin waste dissolution treatment apparatus according to the present invention has the following configuration.
[0006]
That is, an apparatus for charging synthetic resin waste into a dissolution tank containing a solvent, crushing and stirring with a rotating impeller, and dissolving the synthetic resin waste, wherein the impeller includes at least a pair of side plates. And a plurality of blades disposed between both side plates and a sickle-shaped movable crushing plate disposed on the outer surface of each side plate, and the protrusions formed on the blades are formed on the both side plates. In addition, the movable crushing plate is detachably fixed to each of the side plates while being fitted into a slit-like fitting hole formed in the movable crushing plate .
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a synthetic resin waste dissolution treatment apparatus according to the present invention will be described in detail based on embodiments shown in the drawings.
[0010]
1 is a longitudinal front view showing an embodiment of a dissolution treatment apparatus according to the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a right side view thereof, and FIG. 4 is a sectional view taken along line AA in FIG.
[0011]
In the figure, reference numeral 1 denotes an apparatus main body frame, and a thin plate-like exterior material is attached to substantially the entire periphery of the apparatus body frame, but is omitted from the figure. The main body frame 1 is provided with a dissolution tank 2 for dissolving waste such as a used expanded polystyrene molded body, and the dissolution tank 2 is formed in a substantially box shape whose upper surface is opened by a metal plate material such as stainless steel. ing. Further, a waste input port is provided in the main body frame at the upper part of the dissolution tank 2, and an open / close door is provided in the input port, which is omitted in the drawing.
[0012]
Further, as shown in FIGS. 1 and 4, a large number of spray nozzles 3 for a solvent for dissolving synthetic resin waste are provided in the upper part of the dissolution tank 2. In the present embodiment, limonene that dissolves foamed polystyrene is used as the solvent, and the solvent is supplied from the solvent storage tank (not shown) to the spray nozzles 3 via the pump 4 and the supply pipe 5 shown in FIG. Widely diffused into the upper opening of the dissolution tank 2 and supplied. Reference numeral 6 denotes a drive motor for the pump 4.
[0013]
On the other hand, the bottom 2a of the dissolution tank 2 is inclined at a predetermined angle with respect to a horizontal plane, and a recess 2b for discharging the solvent is provided at a position where the inclination is lowest. A lower recovery container 7 made of punching metal or the like is detachably accommodated in the recess 2b, and sand, dust, etc. mixed in the synthetic resin waste are recovered in the lower recovery container 7. Further, as shown in FIG. 1, a discharge pipe 8 is connected and fixed to the wall of the dissolution tank on one end side of the recess 2b, and the solvent in which the synthetic resin waste is dissolved by the pump 4 is omitted from the drawing through the discharge pipe 8. It collects in the collected recovery tank.
[0014]
In addition, an impeller 10 for crushing and stirring the waste is provided at a substantially central portion in the dissolution tank 2, and is configured to be rotated at a predetermined speed by a motor 9 disposed on the side of the dissolution tank 2. In the present embodiment, four impellers 10 are provided on the cylindrical shaft 15 at a predetermined interval as shown in FIGS. 1 and 5. As shown in FIG. 7, each impeller 10 includes a pair of side plates 11, 11, a plurality of blade plates 12 disposed between the side plates 11, 11, and a sickle disposed on the outer surface of each side plate 11. And a movable crushing plate 13 having a shape.
[0015]
Rectangular protrusions 12a are formed on both sides of each blade 12 in the width direction, and slit-like engagement holes 11a and 13a with which the protrusions 12a are engaged are formed on the side plates 11 and the movable crushing plates 13, respectively. It is formed with high precision by cutting or the like, engages the projections 12a with the engagement holes 11a and 13a, fixes the side plates 11 to the cylindrical shaft 15 by welding or the like, and is movable with the side plates 11 The crushing plate 13 is integrated by inserting and crimping the rivets 14 through a large number of small holes 11 b and 13 b formed in the crushing plate 13. The movable crushing plate 13 can be detached from the side plate 11 by breaking the rivet 14 with a tool or the like.
[0016]
As shown in FIG. 5, a support shaft 16 having a diameter equal to or smaller than the inner diameter of the tube shaft 15 is detachably connected to both ends of the tube shaft 15, and the support shaft 16 and the bearing member 20 are interposed therebetween. The impeller 10 is supported by the dissolution tank 2 so as to be rotatable. Each of the support shafts 16 is held by inner surfaces of both end portions of the cylindrical shaft 15 via a short cylindrical collar 17 in the illustrated example, and is connected by a connecting pin 18 penetrating the cylindrical shaft 15, the support shaft 16 and the collar 17. Removably connected. Reference numeral 18 a denotes a retaining clip for the connecting pin 18.
[0017]
As shown in FIGS. 5 and 6, the bearing member 20 includes a pair of shaft support members 21 and 22 and a pillow block 23 disposed on the inner side and the outer side of the dissolution tank 2. One shaft support member 21 is positioned and held with high accuracy by fitting a circular protrusion 21a provided integrally therewith into a hole 2c having substantially the same diameter and the same size as the protrusion 21a formed in the dissolution tank 2, The other shaft support member 22 is attached to the shaft support member 21 with a screw 24. The pillow block 23 is fitted and held in a recess 22 a formed in the shaft support member 22. In FIG. 5, the left bearing member 20 is configured in the same manner as described above.
[0018]
One of the pair of support shafts 16 provided on both ends of the cylindrical shaft 15 (on the right side in FIG. 5) is connected to the output shaft 9a of the motor 9 through a coupling member 25 so as to be detachable. ing. In this embodiment, a reversible motor is used as the motor 9 so as to be able to reversely rotate when it is stopped due to an overload. Normally, the impeller 10 rotates in the direction of arrow a in FIG. It is configured as follows.
[0019]
Further, each of the impellers 10 is formed with a bucket-shaped recess P by the pair of side plates 11 and 11 and the plurality of blade plates 12, and the recess P functions as a recess for dropping a waterfall, which will be described later. Further, the outer peripheral edge 13c of each sickle-shaped movable crushing plate 13 is curved inward as it goes to the front side in the rotational direction (the direction of arrow a in FIG. 4). That is, the distance from the cylindrical shaft 15 is gradually shortened toward the front side in the rotation direction. Further, two V-shaped cutout recesses 13d are formed in each of the outer peripheral edge portions 13c.
[0020]
On the other hand, in the vicinity of the impeller 10, fixed crushing plates 31 to 33 for crushing waste in cooperation with the movable crushing plate 13 of the impeller 10 are provided. In the present embodiment, as shown in FIG. Three types of five pieces: a crushing plate 31 arranged at a position corresponding to the substantially central portion in the longitudinal direction of the cylindrical shaft 15, crushing plates 32 and 32 arranged on both sides thereof, and crushing plates 33 and 33 arranged further outside thereof. A fixed crushing plate is provided.
[0021]
As shown in FIG. 1 and FIG. 8 , the fixed crushing plates 31 to 33 are integrally provided with crushing projections 31 a to 33 a, and the crushing projections 31 a to 33 a follow the rotation trajectory of the impeller 10. It protrudes toward the impeller 10 from a slit-like through hole 34a formed in the arcuate guide plate 34 along. The fixed crushing plates 31 to 33 are formed in the same shape except that the crushing protrusions 31a to 33a are different in position and shape.
[0022]
Among the crushing projections 31a to 33a, the central projection 31a is located at the highest position and the rearmost side in the rotational direction of the impeller 10, and then the projections 32a on both sides thereof are located further than that. The crushing protrusions 31a to 31c are arranged adjacent to each other so as to be low and located in front of the impeller 10 in the rotational direction, and further shifted so that the outer protrusion 33a is located at the lowest and in front of the impeller 10 in the rotation direction. It is comprised so that the impeller 10 may be located between 33a.
[0023]
A base plate 35 and a lateral plate 36 that connect and hold the fixed crushing plates 31 to 33 together with the guide plate 34 are provided on the lower side and the back side of the fixed crushing plates 31 to 33. As shown in FIG. 8 , the base plate 35 and the fixed crushing plates 31 to 33 are formed with protruding pieces 31 b to 33 b (31 b and 32 b are not shown) formed on the fixed crushing plates 31 to 33 on the base plate 35. The horizontal plate 36 is configured to be engaged and held in a slit-like engagement hole 35a, and the horizontal plate 36 is provided with cut grooves 31c to 33c (31c and 32c formed on the back side of the fixed crushing plates 31 to 33). (Not shown).
[0024]
The fixed crushing plates 31 to 33, the guide plate 34, the base plate 35, and the horizontal plate 36 are accurately formed by laser cutting in the present embodiment, whereby the through hole 30a and the crushing projections 31a to 33a are formed. The projecting pieces 31b to 33b and the engaging hole 34a, and the cut grooves 31c to 33c and the horizontal plate 36 are fitted or engaged with each other with high accuracy without rattling.
[0025]
Each of the fixed crushing plates 31 to 33 is configured as one unit together with the guide plate 34, the base plate 35, and the horizontal plate 36 that connect and hold them, and the base plate 35 is welded onto the bottom 2a of the melting tank 2. It attaches to the plate-shaped base 37 integrally provided by detachable by fixing with the volt | bolt 38 grade | etc.,.
[0026]
Further, each of the fixed crushing plates 31 to 33 has openings 31d to 33d as shown in FIGS. 4 and 8 , and a heater 40 for warming a solvent such as limonene is provided so as to penetrate the openings. It has been. The heater 40 is provided with a pipe line 41 that detours in the front-rear direction in FIG. 4 and circulates hot water from a boiler or the like omitted in the figure into the pipe line 41.
[0027]
Further, an upper collection container 45 that collects suspended matters such as dust floating in the solvent is detachably provided on the upper portions of the fixed crushing plates 31 to 33. In the illustrated example, the collection container 45 has a structure in which nets 45b are stretched on the front, rear, left, right, and bottom surfaces excluding the top surface of a frame body 45a having an inverted trapezoidal cross section, and handles 45c are provided at both longitudinal ends of the frame body 45a. Is provided.
[0028]
When each impeller 10 rotates along the guide plate 34, a region surrounded by the outer blade plate 12, the pair of side plates 11 and 11, and the guide plate 34 is shown in FIG. As shown in FIG. 10, a concave portion Q for solvent pumping having a substantially V-shaped cross section is formed, and the solvent S accumulated in the pumping concave portion Q moves toward the upper recovery container 45 as the impeller 10 rotates. Thus, the solvent S flows into the container 45, whereby dust or the like in the solvent S is captured and collected by the collection container 45.
[0029]
In the above-described configuration, for example, when a synthetic resin waste such as used polystyrene is dissolved in an organic solvent such as limonene, the motor 6 is driven to operate the pump 4 and a new solvent is supplied to the supply pipe 5. Through the spray nozzle 3 and supplied into the dissolution tank 2. At that time, if the old solvent is attached to the impeller 10 or the collection container 7 or 45 in the previous dissolution process, the old solvent is washed away by providing the spray nozzle 3 on the upper part of the dissolution tank 2. be able to.
[0030]
When the solvent is supplied to the dissolution tank 2 to a predetermined initial level as described above, the waste W is charged into the dissolution tank 2 from the waste inlet (not shown) at the top of the main body frame 1. At that time, the impeller 10 is set so as to stop at a fixed position shown in FIG. 4, and this fixed position is a state where a space in the dissolution tank 2 above the impeller 10 is widely vacant, and the waste is the most. Many can be thrown in.
[0031]
When the waste is put into the dissolution tank 2, the opening / closing door (not shown) is closed and the motor 9 is driven to rotate the impeller 10, and the motor closes the opening / closing door. Sometimes it can be configured to drive automatically. In that case, for safety, it is preferable that the impeller 10 is configured to rotate several seconds after the door 2 is closed. However, this is not limited to the above as long as it is configured to automatically feed using a conveyor or the like and the safety is ensured by surrounding the slot with a fence or the like.
[0032]
When the impeller 10 rotates as described above, waste is sequentially pushed into the solvent by the impeller 12 and the movable crushing plate 13 of the impeller 10. At that time, waste adhering to the inner surface of the side plate of the dissolution tank 2 is sequentially scraped off at the tip of the sickle-shaped movable crushing plate 13, and waste that has not been scraped off at the tip is V-shaped of the movable crushing plate 13. It is pushed into the solvent by the mold notch recess 13d.
[0033]
The waste pushed into the solvent is sequentially cut by the movable crushing plate 13 and the fixed crushing plates 31 to 33 of the impeller 10, and is gradually crushed by repeating this. At this time, since the positions of the crushing plates 31 to 33 with respect to the impeller 10 are shifted in the rotational direction of the impeller 10 as described above, it is possible to prevent a large force from acting on the impeller 10 at one time. The load on the motor is reduced.
[0034]
Since the above-mentioned waste crushing operation is mainly performed in a solvent, the waste can be smoothly performed without flapping or splashing, and no static electricity is generated. In addition, the waste pushed into the solvent is gradually dissolved in the solvent, and the contact area with the solvent is increased by the above-mentioned crushing to promote dissolution.
[0035]
Further, as the impeller 10 rotates as described above, the waterfall dropping recess P formed by the side plates 11 and 11 and the blade plate 12 enters the solvent as shown in FIG. It is exposed above the surface and enters the solvent again. By repeating this, the solvent S accumulated in the recess P is sprinkled on the waste in a waterfall manner, and the solvent is stirred to increase the dissolution rate of the waste.
[0036]
By further providing the heater 40 for the solvent heating, solvent limonene is warmed efficiently, Ru Ah can be more efficiently dissolved synthetic resin wastes such as expanded polystyrene. In addition, when the dissolution rate of expanded polystyrene is, for example, about 20 to 30% by weight, the viscosity of an organic solvent such as limonene becomes much higher than that of the new solution, so that it becomes difficult to dispose of the waste solution. The waste liquid falls smoothly. In addition, heat is not directly transferred to the organic solvent, but heat is transferred from both sides by the hot water type heat radiation, so that it is very safe and heat efficiency is good.
[0037]
As the impeller 10 rotates, the solvent pumping recess Q formed by the guide plate 34 and the pair of side plates 11 and 11 of the impeller 10 and the vane plate 12 moves upward along the guide plate 34. Then, the solvent S accumulated in the concave portion Q flows into the recovery container 45 when it moves to the side of the upper recovery container 45 and is filtered. By repeating this, dust and the like floating in the solvent S can be sequentially captured and recovered by the recovery container 45. The solvent that has permeated the recovery container 45 and has flowed downward passes through the lower surface side of the guide plate 34 and sequentially moves below the impeller 10, joins with the solvent in the vicinity thereof, and repeats circulation.
[0038]
In addition, when sand, pebbles or the like are introduced into the dissolution tank 2 together with the waste and mixed with the solvent, they gradually descend in the solvent and settle on the dissolution tank bottom 2a, and then the bottom along with the flow of the solvent. It moves toward the discharge passage 2b along the inclined surface 2a, and is collected in the lower collection container 7 provided in the passage 2b. The sand, garbage, etc. recovered in the lower recovery container 7 and the upper recovery container 45 can be taken out from the dissolution tank 2 together with the recovery container after the dissolution process, for example, and discarded. Further, if necessary, for example, if a permanent magnet or the like is installed in the recovery container, the bottom of the dissolution tank, or the like, metal foreign matter can be adsorbed.
[0039]
In the state where the impeller 10 is rotating, for example, when waste is caught between the impeller 10 and the inner surface of the side plate of the dissolution tank 2 and the motor 9 is stopped, the motor 9 is reversed. The waste can be removed by rotating it in the opposite direction. At that time, since the outer peripheral edge 13c of the movable crushing plate 13 of the impeller 10 is curved inward in the radial direction as it goes to the front side in the rotational direction as described above, the outer peripheral edge 13c when the impeller 10 is reversed. Tends to move away from the waste sandwiched between the inner surface of the dissolution tank, so that the reverse rotation can be performed smoothly. The same applies to the relationship between the impeller 10 and the guide plate 34. The clearance between the impeller 10 and the guide plate 34 decreases as it goes downstream in the rotational direction of the impeller 10 as described above. Since the clearance increases as it goes to the front side in the rotation direction, it can be reversed smoothly.
[0040]
In addition, when an overload is applied to the motor due to a waste trapped as described above, the motor may be automatically detected to stop the motor, and the motor is automatically reversed if necessary. It can also be configured to be. For example, when an overload is applied to the motor or the like for some reason, the rotation of the impeller is temporarily stopped, and then the reverse rotation is performed, for example, about 1/2 rotation, and then the normal operation is tried again. For example, if the overload is not eliminated even if this is performed about three times, it may be automatically stopped. In the present embodiment, most of the overload is eliminated by the above operation.
[0041]
The synthetic resin waste thrown into the dissolution tank 2 as described above is sequentially dissolved with a solvent, and when a predetermined amount of waste is dissolved, the rotation of the impeller 10 is stopped, or an alarm or the like is issued. Encourage exchange. As the means, for example, the amount of the solvent whose volume is increased by dissolving the waste is detected by a glass tube type liquid level sensor or the like installed outside the dissolution tank, and the impeller drive motor is stopped based on the detection. Notify the solvent exchange. Further, the upper limit allowable level of the solvent can be written on the glass tube, and when the level of the solvent reaches that level, it is possible to promote solvent replacement or the like, or to replace it automatically.
[0042]
Next, when the impeller 10 is stopped, the solvent in the dissolution tank 2 in which the waste has been dissolved is recovered from the discharge pipe 8 connected to the bottom of the dissolution tank 2 into the recovery tank omitted in the figure by the pump 4. . At that time, dust and the like that could not be captured by the collection containers 7 and 45 can be collected by providing a dust filter or the like between the discharge pipe 8 and the collection tank. In addition, the dust trapped in the collection containers 7 and 45 can be easily removed by taking out the containers from the waste input port or the maintenance opening not shown in the figure, and then a new solvent. Can be cleaned when spraying into the dissolution tank. At that time, the dirt in the pump generated at the time of discharging can be removed.
[0043]
When the synthetic resin waste is sequentially crushed by the movable crushing plate 13 and the fixed crushing plates 31 to 33 of the impeller 10 and dissolved in the solvent as described above, the cans, bottles, wood chips, etc. When a hard foreign substance enters the dissolution tank 2 and the impeller 10 or the cylinder shaft 15 is deformed or damaged, it can be repaired or replaced as follows.
[0044]
For example, when it is necessary to repair or replace the movable crushing plate 13 of the impeller 10, the movable crushing plate 13 is taken out by cutting and removing the rivet connecting the movable crushing plate 13 and the side plate 11 with a tool or the like. What is necessary is just to fix or replace | exchange and to fix to the side plate 11 with a rivet newly. At that time, the distance between the adjacent impellers 10 and 10 and the distance between the outermost impeller 10 and the inner surface of the dissolution tank are formed so that a wrench caulking spanner or the like can be sufficiently inserted. be able to.
[0045]
When it is necessary to take out the impeller 10 together with the cylinder shaft 15 from the dissolution tank 2, the connection between the cylinder shaft 15 and the support shafts 16 provided at both ends thereof may be released. 18 is pulled out, the connecting pin 18 is pulled out, and the support shaft 16 connected to the output shaft 9a of the motor 9 is connected to the output shaft 9a by the coupling material 25 for connection. To release. If both the support shafts 16 are moved into the cylindrical shaft 15, the rotary blade 10 including the cylindrical shaft 15 and the support shaft 16 can be taken out from the melting tank 10.
[0046]
Further, when the fixed crushing plates 31 to 33 need to be repaired or replaced due to deformation or breakage, the fixing bolts 38 of the base plate 35 that support the fixed crushing plates 31 to 33 are removed from the pedestal 37. Then, the fixed crushing plates 31 to 33 unitized together with the base plate 35 and the guide plate 34 can be taken out from the dissolution tank 2.
[0047]
As described above, in the present invention, the movable crushing plate 13 of the impeller 10, the entire impeller 10 and the fixed crushing plates 31 to 33 can be easily taken out from the dissolution tank 2 and repaired or replaced. . In addition, after taking out the whole impeller 10 and the fixed crushing plates 31-33 from the dissolution tank 2, and repairing or replacing | exchanging, what is necessary is just to assemble in the reverse order to the above.
[0048]
Further, the support shafts 16 provided at both ends of the cylindrical shaft 15 of the impeller 10 are supported by bearings via the bearing members 20, and the protrusions 21a formed on the bearing members are fitted into the holes 2c formed in the melting tank. Since the support shaft 16 is held, the support shaft 16 can be positioned and held accurately and easily at a predetermined position.
[0049]
Further, the projecting portion 12a formed on the blade plate 12 of the impeller 10 is fitted into the slit-like engagement holes 11a and 13a formed on the side plate 11 and the movable crushing plate 13, whereby the impeller 10, in particular, The strength of the movable crushing plate 13 can be increased. Further, if each side plate 11 of the impeller 10, the blade plate 12 and the movable crushing plate 13 are accurately formed by laser cutting or the like as in the above embodiment, it is possible to more firmly bond without backlash. The same applies to the guide plate 34 and the fixed crushing plates 31 to 33.
[0050]
【The invention's effect】
As described above, since the synthetic resin waste dissolution treatment apparatus according to the present invention has the above-described configuration, it is necessary to repair or replace the movable crush plate 13 of the impeller 10 or the entire impeller as a result of deformation or damage. Even in some cases, only the movable crushing plate 13 or the entire impeller can be easily taken out from the dissolution tank 2 to be repaired or exchanged, so that maintainability is improved and maintenance of this type of melting treatment apparatus is maintained. -There are effects such as easy and quick management.
[Brief description of the drawings]
FIG. 1 is a longitudinal front view showing an embodiment of a synthetic resin waste dissolution treatment apparatus according to the present invention.
FIG. 2 is a plan view of the dissolution processing apparatus.
FIG. 3 is a right side view of the dissolution processing apparatus.
4 is a cross-sectional view taken along line AA in FIG.
FIG. 5 is a partially longitudinal front view of the impeller and its drive mechanism in the melting treatment apparatus.
FIG. 6 is an enlarged view of a part thereof.
FIG. 7 is an exploded perspective view of an impeller.
FIG. 8 is an enlarged view showing an arrangement configuration of fixed crushing plates.
FIG. 9 is an explanatory diagram of a solvent waterfall dropping operation on waste.
FIG. 10 is an explanatory diagram of an operation for introducing a solvent into the upper recovery container.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Apparatus main body frame 2 Dissolution tank 3 Solvent spray nozzle 4 Pump 5 Solvent supply pipe 6 Pump drive motor 7 Lower collection container 8 Discharge pipe 9 Impeller rotation motor 10 Impeller 11 Side plate 12 Blade plate 13 Movable crushing plate 14 Rivet 15 Cylinder shaft 16 Support shaft 20 Bearing members 21, 22 Shaft support member 25 Coupling materials 31-33 Fixed crushing plate 34 Guide plate 40 Heater 45 Upper collection container

Claims (2)

溶媒を収容した溶解槽内に合成樹脂廃棄物を投入し、回転する羽根車によって破砕し且つ撹拌して合成樹脂廃棄物を溶解処理する装置であって、上記羽根車を少なくとも一対の側板と、その両側板間に配置される複数枚の羽根板と、上記各側板の外面に配置される鎌状の可動破砕板とで構成し、上記羽根板に形成した突部を、上記両側板および可動破砕板に形成したスリット状の嵌合孔に嵌合すると共に、上記各側板に対して可動破砕板を脱着可能に固着したことを特徴とする合成樹脂廃棄物の溶解処理装置。A device for charging synthetic resin waste into a dissolution tank containing a solvent, crushing by a rotating impeller and stirring to dissolve synthetic resin waste, the impeller comprising at least a pair of side plates, A plurality of blades disposed between the side plates and a sickle-shaped movable crushing plate disposed on the outer surface of each side plate, and the protrusion formed on the blades are formed on the both side plates and the movable plate. A synthetic resin waste dissolution treatment apparatus , which is fitted in a slit-like fitting hole formed in a crushing plate, and a movable crushing plate is detachably fixed to each side plate . 前記各側板に対して可動破砕板を破断可能なリベットにより脱着可能に固着してなる請求項1に記載の合成樹脂廃棄物の溶解処理装置。The synthetic resin waste dissolution treatment apparatus according to claim 1, wherein the movable crushing plate is fixed to each side plate so as to be detachable by a breakable rivet .
JP18595499A 1999-06-30 1999-06-30 Synthetic resin waste dissolution treatment equipment Expired - Fee Related JP4330207B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18595499A JP4330207B2 (en) 1999-06-30 1999-06-30 Synthetic resin waste dissolution treatment equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18595499A JP4330207B2 (en) 1999-06-30 1999-06-30 Synthetic resin waste dissolution treatment equipment

Related Child Applications (1)

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JP4330207B2 true JP4330207B2 (en) 2009-09-16

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