JP4003939B2 - RPF manufacturing method and manufacturing equipment thereof - Google Patents

Description

【０００４】
従来、ＲＰＦの製造に際しては、古紙と廃プラスチックとの混合が、原料ヤードでの作業員の勘に頼って行われている。
【０００５】
【発明が解決しようとする課題】
しかし、従来のＲＰＦの製造方法では、古紙と廃プラスチックとの混合割合が区々となり、特に短時間のスパンで見た場合、製品毎の発熱量にばらつきを生じる不具合がある。
【０００６】
そこで、本発明は、発熱量をより均一にし得るＲＰＦの製造方法及びその製造設備を提供することを課題とする。
【０００７】
【課題を解決するための手段】
前記課題を解決するため、本発明に係るＲＰＦの製造方法は、古紙と廃プラスチックを用いて、以下のような方法とした。
【０００８】
第１のＲＰＦの製造方法は、古紙と廃プラスチックを時間をずらし別個に供給して別個に破砕し、古紙破砕片と廃プラスチック破砕片の材質を別個に検出すると共に、それに基づいて燃料不適物を除く発熱量を別個に算出し、かつ、燃料不適物を除去する選別を別個に行った後、古紙破砕片と廃プラスチック破砕片を別個に貯留すると共に、前記算出した発熱量に基づいて所望の発熱量に対応する割合で混合供給して押出し成形することを特徴とする。
【０００９】
第２のＲＰＦの製造方法は、古紙と廃プラスチックを同時に別個に供給して別個に破砕し、古紙破砕片と廃プラスチック破砕片の材質を別個に検出すると共に、それに基づいて燃料不適物を除く発熱量を別個に算出し、かつ、燃料不適物を除去する選別を別個に行った後、古紙破砕片と廃プラスチック破砕片を別個に貯留すると共に、前記算出した発熱量に基づいて所望の発熱量に対応する割合で混合供給して押出し成形することを特徴とする。
【００１０】
第３のＲＰＦの製造方法は、第１又は第２の方法において、前記古紙破砕片と廃プラスチック破砕片の混合供給に際し、それらの材質を別個に検出し、かつ、それらの塩素含有量を別個に算出することを特徴とする。
【００１１】
第４のＲＰＦの製造方法は、第１、第２又は第３の方法において、前記押出し成形時の温度を測定し、かつ、成形温度が所要の値となるように古紙破砕片と廃プラスチック破砕片の供給量を制御することを特徴とする。
【００１２】
第５のＲＰＦの製造方法は、古紙と廃プラスチックを同時に別個に供給して一緒に破砕し、古紙破砕片と廃プラスチック破砕片の混合物の材質を検出すると共に、それに基づいて燃料不適物を除く発熱量を算出し、かつ、燃料不適物を除去する選別を行った後、算出した発熱量に基づいて所望の発熱量に対応するように前記古紙と廃プラスチックの供給量の割合を制御する一方、古紙破砕片と廃プラスチック破砕片の混合物を貯留すると共に、供給して押出し成形することを特徴とする。
【００１３】
第６のＲＰＦの製造方法は、第５の方法において、前記古紙破砕片と廃プラスチック破砕片の混合物の供給に際し、その材質を検出し、かつ、その塩素含有量を算出することを特徴とする。
【００１４】
第７のＲＰＦの製造方法は、第５又は第６の方法において、前記押出し成形時の温度を測定し、かつ、成形温度が所要の値となるように古紙破砕片と廃プラスチック破砕片の混合物の供給量を制御することを特徴とする。
【００１５】
又、第８のＲＰＦの製造方法は、第１、第２、第３、第４、第５、第６又は第７の方法において、前記押出し成形された成形品の水分量を測定し、かつ、成形品の水分量が所要の値となるように古紙破砕片と廃プラスチック破砕片の混合物の水分量を制御することを特徴とする。
【００１６】
一方、第１のＲＰＦの製造設備は、古紙又は廃プラスチックを供給する供給コンベヤと、供給コンベヤから供給される古紙又は廃プラスチックを破砕する破砕機と、破砕機から排出される古紙破砕片の材質を検出する第１材質検出器と、破砕機から排出される廃プラスチック破砕片の材質を検出する第２材質検出器と、第１材質検出器の検出結果に基づいて燃料不適物を除く古紙破砕片の発熱量を算出する第１発熱量演算手段と、第２材質検出器の検出結果に基づいて燃料不適物を除く廃プラスチック破砕片の発熱量を算出する第２発熱量演算手段と、第１材質検出器の検出結果に基づいて古紙破砕片から燃料不適物を除去する選別を行う第１選別手段と、第２材質検出器の検出結果に基づいて廃プラスチック破砕片から燃料不適物を除去する選別を行う第２選別手段と、第１選別手段によって燃料不適物が除去された古紙破砕片を貯留して供給する供給量可変の第１供給機と、第２選別手段によって燃料不適物が除去された廃プラスチック破砕片を貯留して供給する供給量可変の第２供給機と、第１、第２供給機の供給量の割合を、前記第１、第２発熱量演算手段によって算出された発熱量に基づいて所望の発熱量に対応するように制御する比率制御手段と、比率制御手段により制御されて第１、第２供給機から供給される古紙破砕片と廃プラスチック破砕片の混合物を押出し成形する成形機とを備えることを特徴とする。
【００１７】
第２のＲＰＦの製造設備は、古紙を供給する第１供給コンベヤと、廃プラスチックを供給する第２供給コンベヤと、第１供給コンベヤから供給される古紙を破砕する第１破砕機と、第２供給コンベヤから供給される廃プラスチックを破砕する第２破砕機と、第１破砕機から排出される古紙破砕片の材質を検出する第１材質検出器と、第２破砕機から排出される廃プラスチック破砕片の材質を検出する第２材質検出器と、第１材質検出器の検出結果に基づいて燃料不適物を除く古紙破砕片の発熱量を算出する第１発熱量演算手段と、第２材質検出器の検出結果に基づいて燃料不適物を除く廃プラスチック破砕片の発熱量を算出する第２発熱量演算手段と、第１材質検出器の検出結果に基づいて古紙破砕片から燃料不適物を除去する選別を行う第１選別手段と、第２材質検出器の検出結果に基づいて廃プラスチック破砕片から燃料不適物を除去する選別を行う第２選別手段と、第１選別手段によって燃料不適物が除去された古紙破砕片を貯留して供給する供給量可変の第１供給機と、第２選別手段によって燃料不適物が除去された廃プラスチック破砕を貯留して供給する供給量可変の第２供給機と、第１、第２供給機の供給量の割合を、前記第１、第２発熱量演算手段によって算出された発熱量に基づいて所望の発熱量に対応するように制御する比率制御手段と、比率制御手段により制御されて第１、第２供給機から供給される古紙破砕片と廃プラスチック破砕片の混合物を押出し成形する成形機とを備えることを特徴とする。
【００１８】
第３のＲＰＦの製造設備は、第１又は第２の設備において、前記第１供給機から供給される古紙破砕片の材質を検出する第３材質検出器と、第２供給機から供給される廃プラスチック破砕片の材質を検出する第４材質検出器と、第３材質検出器の検出結果に基づいて古紙破砕片の塩素含有量を算出する第１塩素含有量演算手段と、第４材質検出器の検出結果に基づいて廃プラスチック破砕片の塩素含有量を算出する第２塩素含有量演算手段とを備えることを特徴とする。
【００１９】
第４のＲＰＦの製造設備は、第１、第２又は第３の設備において、前記成形機内の温度を測定する温度計と、温度計の測定結果に基づいて成形機内の温度が所要の値となるように第１、第２供給機の供給量を制御する供給量制御手段とを備えることを特徴とする。
【００２０】
第５のＲＰＦの製造設備は、古紙を供給する供給量可変の第１供給コンベヤと、廃プラスチックを供給する供給量可変の第２供給コンベヤと、第１、第２供給コンベヤから供給される古紙と廃プラスチックの混合物を破砕する破砕機と、破砕機から排出される古紙破砕片と廃プラスチック破砕片の混合物の材質を検出する第１材質検出器と、第１材質検出器の検出結果に基づいて燃料不適物を除く古紙破砕片と廃プラスチック破砕片の混合物の発熱量を算出する発熱量演算手段と、第１材質検出器の検出結果に基づいて古紙破砕片と廃プラスチック破砕片の混合物から燃料不適物を除去する選別を行う選別手段と、前記第１、第２供給コンベヤの供給量の割合を、発熱量演算手段によって算出された発熱量に基づいて所望の発熱量と対応するように制御する比率制御手段と、選別手段によって燃料不適物が除去された古紙破砕片と廃プラスチック破砕片の混合物を貯留して供給する供給機と、供給機から供給される古紙破砕片と廃プラスチック破砕片の混合物を押出し成形する成形機とを備えることを特徴とする。
【００２１】
第６のＲＰＦの製造設備は、第５の設備において、前記供給機から供給される古紙破砕片と廃プラスチック破砕片の混合物の材質を検出する第２材質検出器と、第２材質検出器の検出結果に基づいて古紙破砕片と廃プラスチック破砕片の混合物の塩素含有量を算出する塩素含有量演算手段とを備えることを特徴とする。
【００２２】
第７のＲＰＦの製造設備は、第５又は第６の設備において、前記成形機内の温度を測定する温度計と、温度計の測定結果に基づいて成形機内の温度が所要の値となるように供給機の供給量を制御する供給量制御手段とを備えることを特徴とする。
【００２３】
第８のＲＰＦの製造設備は、第１、第２、第３、第４、第５、第６又は第７の設備において、前記成形機から排出される成形品の水分量を測定する水分量測定手段と、前記成形機内に散水する散水量可変の散水装置と、水分量測定手段の測定結果に基づいて成形品の水分量が所要の値となるように散水装置の散水量を制御する散水量制御手段とを備えることを特徴とする。
【００２４】
【作用】
本発明の第１のＲＰＦの製造方法及びその製造設備においては、古紙と廃プラスチックが時間をずらし別個に供給され、別個に破砕されて古紙破砕片、廃プラスチック破砕片となってから、古紙破砕片と廃プラスチック破砕片が別個に材質を検出されると共に、燃料不適物を除く発熱量を算出され、かつ、燃料不適物を除去された後、成形機による成形に際し、古紙破砕片と廃プラスチック破砕片が算出された発熱量に基づいて所望の発熱量に対応する割合で混合される。
【００２５】
第２のＲＰＦの製造方法及び製造設備においては、古紙と廃プラスチックが同時に別個に供給され、別個に破砕されて古紙破砕片、廃プラスチック破砕片となってから、古紙破砕片と廃プラスチック破砕片が別個に材質を検出されると共に、燃料不適物を除く発熱量を算出され、かつ、燃料不適物を除去された後、成形機による成形に際し、古紙破砕片と廃プラスチック破砕片が算出された発熱量に基づいて所望の発熱量に対応する割合で混合される。
【００２６】
第３のＲＰＦの製造方法及びその製造設備においては、第１又は第２の方法及び設備による作用の他、混合供給される古紙破砕片と廃プラスチック破砕片が別個に材質を検出され、かつ、塩素含有量を算出される。
【００２７】
第４のＲＰＦの製造方法及びその製造設備においては、第１、第２又は第３の方法及び設備による作用の他、成形機内の温度が所要の値に保持される。
【００２８】
第５のＲＰＦの製造方法及びその製造設備においては、古紙と廃プラスチックが同時に別個に供給され、一緒に破砕されて古紙破砕片と廃プラスチック破砕片の混合物となってから、古紙破砕片と廃プラスチック破砕片の混合物が材質を検出されると共に、燃料不適物を除く発熱量を算出され、かつ、燃料不適物を除去された後、古紙破砕片と廃プラスチック破砕片の混合物が成形機により成形される一方、古紙と廃プラスチックの供給量の割合が算出された発熱量に基づいて所望の発熱量に対応するように制御される。
【００２９】
第６のＲＰＦの製造方法及びその製造設備においては、第５の方法及び設備による作用の他、古紙破砕片と廃プラスチック破砕片の混合物の材質が検出され、かつ、塩素含有量が算出される。
【００３０】
第７のＲＰＦの製造方法及びその設備においては、第５又は第６の方法及び設備による作用の他、成形機内の温度が所要の値に保持される。
【００３１】
又、第８のＲＰＦの製造方法及びその製造設備においては、第１、第２、第３、第４、第５、第６又は第７の方法及び設備による作用の他、成形品の水分量が所要の値に保持される。
【００３２】
古紙破砕片、廃プラスチック破砕片は、一辺が１０〜６０ｍｍ程度であることが好ましい。又、古紙の材質としては、新聞、雑誌等が挙げられる。一方、廃プラスチックの材質としては、ＬＤＰＥ（低密度ポリエチレン）、ＨＤＰＥ（高密度ポリエチレン）、ＰＰ（ポリプロピレン）、ＰＳ（ポリスチレン）、ＥＰＳ（発泡ポリスチレン）、Ａ−ＰＥＴ（ポリエチレンテレフタレート）、ｍ−ＰＥＴ、ＰＶＣ（塩化ビニル樹脂）、ＰＣ（ポリカーボネート）等が挙げられる。更に、成形品は、直径５〜４０ｍｍ、長さ１０〜１００ｍｍの短円柱状であることが好ましい。更に又、古紙破砕片、廃プラスチック破砕片から燃料不適物を除去しない場合、原料としての古紙、廃プラスチックから予め燃料不適物を除去しておくことが好ましい。燃料不適物としては、アルミニウム等の金属やＰＶＣ等の塩素系プラスチック等が挙げられる。
【００３３】
破砕機としては、水平なロータの外周に突設した短柱状の多数の回転刃、回転刃と噛合するようにしてロータの一側に配設した鋸刃状の固定刃、及びロータの下方に配設したスクリーンから概略構成される一軸式破砕機が用いられる。材質検出器は、古紙破砕片、廃プラスチック破砕片に近赤外線を照射し、古紙破砕片、廃プラスチック破砕片の材質により吸収度が異なることを利用して材質を検出するものである。発熱量演算手段は、材質検出器によって検出された材質固有の発熱量と固有材質の破砕片の数を乗じて算出するものである。成形機としては、リング状のダイ、ダイの内周を転動する複数のローラ、及びダイの外周に摺接するカッターから概略構成されるリングダイ式成形機が用いられる。選別手段としては、材質検出器によって材質を検出すべく古紙破砕片、廃プラスチック破砕片を搬送する搬送コンベヤの搬出端に配設され、圧縮空気により破砕片を吹き飛ばす多数のエアノズル、及び材質検出器によって検出された所要材質の破砕片と対応する位置のエアノズルを作動させるべく制御するノズル制御手段を備えるものが用いられる。水分量測定手段としては、成形品の表面の水分量を測定する水分計、及び成形品の比重を測定すべく成形品の重量を計量するベルトスケール等の計量器が併用される。
【００３４】
【発明の実施の形態】
以下、本発明の実施の形態について図面を参照して説明する。図１は本発明に係るＲＰＦの製造設備の第１の実施の形態を示す概略構成図である。図中１は古紙又は廃プラスチック（図示せず）を供給する供給コンベヤ、２は供給コンベヤ１から供給される古紙又は廃プラスチックを所要の寸法、例えば、一辺１０〜６０ｍｍ程度の古紙破砕片、廃プラスチック破砕片に破砕する破砕機で、この破砕機２としては、例えば、水平なロータの外周面に突設した短柱状の多数の回転刃、回転刃と噛合するようにしてロータの一側に配設した鋸刃状の固定刃、及びロータの下方に配設したスクリーンから概略構成される一軸式破砕機が用いられる。
【００３５】
３Ａは破砕機２から排出される古紙破砕片（図示せず）を水平に搬送する搬送コンベヤ４Ａの上方に配設され、古紙破砕片の材質を検出する第１材質検出器、３Ｂは破砕機２から排出される廃プラスチック破砕片（図示せず）を水平に搬送する搬送コンベヤ４Ｂの上方に配設され、廃プラスチック破砕片の材質を検出する第２材質検出器であり、両材質検出器３Ａ，３Ｂは、搬送コンベヤ４Ａ，４Ｂ上を搬送される古紙破砕片、廃プラスチック破砕片に近赤外線を照射し、材質によって吸収度が異なることを利用して材質を検出するものである（特表平５−５０６８３２号公報参照）。そして、両材質検出器３Ａ，３Ｂの検出結果は、制御盤５に入力され、この制御盤５に搭載した第１発熱量演算手段（図示せず）により、アルミニウム等の金属やＰＶＣ等の塩素系プラスチック、その他の燃料不適物（以下、同じ）を除く古紙破砕片の発熱量が算出され、又、制御盤５に搭載した第２発熱量演算手段（図示せず）により、燃料不適物を除く廃プラスチック破砕片の発熱量が算出されるものである。なお、それぞれの発熱量は、破砕片の数にその破砕片の発熱量を乗じて得られる。
【００３６】
６Ａは古紙破砕片から燃料不適物を除去する選別を行う第１選別手段、６Ｂは廃プラスチック破砕片から燃料不適物を除去する選別を行う第２選別手段であり、両選別手段６Ａ，６Ｂは、搬送コンベヤ４Ａ，４Ｂの搬出端に搬送方向と直角をなして水平に配設され、燃料として適合する古紙破砕片、廃プラスチック破砕片をそれぞれ圧縮空気により分岐板７Ａ，７Ｂを越えて吹き飛ばす多数のエアノズル８Ａ，８Ｂ、各エアノズル８Ａ，８Ｂと電磁弁を介在して接続された圧縮空気タンク（共に図示せず）、前述した制御盤５に搭載され、第１、第２材質検出器３Ａ，３Ｂの検出結果に基づいて燃料として適合する古紙破砕片、廃プラスチック破砕片と対応する位置のエアノズル８Ａ，８Ｂを作動させるべく所要の電磁弁の動作を制御する第１、第２ノズル制御手段（図示せず）、及び第１、第２材質検出器３Ａ，３Ｂの検出結果に基づき、燃料不適物と対応する位置のエアノズル８Ａ，８Ｂの不作動に伴って搬送コンベヤ４Ａ，４Ｂの搬出端から落下する燃料不適物を収容する不適物収容ボックス９Ａ，９Ｂからなる。
【００３７】
１０Ａは第１選別手段６Ａによって選別された燃料として適合する古紙破砕片を貯留するホッパー１１Ａ、及びホッパー１１Ａに貯留された古紙破砕片を後述する成形機に供給する供給量可変のスクリューフィーダ１２Ａからなる第１供給機、１０Ｂは第２選別手段６Ｂによって選別された燃料として適合する廃プラスチック破砕片を貯留するホッパー１１Ｂ、及びホッパー１１Ｂに貯留された廃プラスチック破砕片を後述する成形機に供給する供給量可変のスクリューフィーダ１２Ｂからなる第２供給機であり、両供給機１０Ａ，１０Ｂの供給量の割合は、前記制御盤５に搭載され、第１、第２発熱量演算手段によって算出された発熱量に基づいて製品（成形品）としてのＲＰＦの発熱量が所望の発熱量に対応するように古紙破砕片と廃プラスチック破砕片の比率を制御する比率制御手段（図示せず）によって制御されるものである。又、第１、第２供給機１０Ａ，１０Ｂの供給量は、後述する成形機内の温度を所要の値に保持すべく、制御盤５に搭載した供給量制御手段（図示せず）によって成形機内の温度測定結果に基づいて制御されるものである。
【００３８】
１３Ａは第１供給機１０Ａから供給される古紙破砕片の材質を検出する第３材質検出器、１３Ｂは第２供給機１０Ｂから供給される廃プラスチック破砕片の材質を検出する第４材質検出器である。両材質検出器１３Ａ，１３Ｂは、前述した第１、第２材質検出器３Ａ，３Ｂと同様の機能を有するものであって、それぞれの検出結果は、制御盤５に入力され、古紙破砕片、廃プラスチック破砕片の品質をチェックすべく、第１、第２塩素含有量演算手段（図示せず）によって古紙破砕片、廃プラスチック破砕片の塩素含有量が算出されると共に、表示、記録されるものである。
【００３９】
１４は、第１、第２供給機１０Ａ，１０Ｂから所望の発熱量に対応する割合で混合供給される古紙破砕片と廃プラスチック破砕片を、所望の寸法形状、例えば、直径６〜２５ｍｍ、長さ１０〜５０ｍｍの短円柱状に押出し成形する成形機で、この成形機１４は、リング状のダイ、ダイの内周を転動する複数のローラ、及びダイの外周に摺接するカッターから概略構成されている。成形機１４には、その内部の温度を測定する温度計１５が付設されており、この温度計１５の測定結果は、制御盤５に入力され、前述した供給量制御手段の基準入力要素となるものである。又、成形機１４には、その内部に供給された古紙破砕片と廃プラスチック破砕片の混合物に散水する散水量可変の散水装置１６が付設されている。この散水装置１６の散水量は、後述する散水量制御手段により、水分量測定手段の測定結果に基づいて制御されるものである。
【００４０】
１７は成形機１４から排出され、ブロアー１８を介して空気搬送される成形品（ＲＰＦ）を冷却する冷却器、１９は冷却器１７によって冷却されたＲＰＦの比重を測定すべくその重量を計量すると共に、製品ヤード２０へ搬送するベルトスケールで、このベルトスケール１９の上方に配設され、ＲＰＦの表面の水分量を測定する水分計２１と相俟って水分量測定手段２２を構成するものである。そして、水分量測定手段２２の測定結果は、制御盤５に入力され、この測定結果に基づき、制御盤５に搭載した散水量制御手段（図示せず）によって、ＲＰＦの水分量が所要の値になるように前記散水装置１６の散水量が制御されるものである。
【００４１】
上記構成のＲＰＦの製造設備によってＲＰＦを製造するには、先ず、古紙と廃プラスチックを供給コンベヤ１により時間をずらし別個に破砕機２に供給して所要の寸法に別個に破砕して古紙破砕片、廃プラスチック破砕片とする。次に、古紙破砕片、廃プラスチック破砕片の材質を、第１、第２材質検出器３Ａ，３Ｂにより検出すると共に、この検出結果に基づいて燃料不適物を除く古紙破砕片、廃プラスチック破砕片の発熱量を第１、第２発熱量演算手段により算出し、かつ、古紙破砕片、廃プラスチック破砕片から燃料不適物を除去する選別を第１、第２選別手段６Ａ，６Ｂによって行う。
【００４２】
次いで、燃料不適物が除去された古紙破砕片、廃プラスチック破砕片を第１、第２供給機１０Ａ，１０Ｂに貯留すると共に、第１、第２発熱量演算手段によって算出された発熱量に基づいて所望の発熱量に対応するように、第１、第２供給機１０Ａ，１０Ｂの供給量の割合を比率制御手段により制御し、古紙破砕片と廃プラスチック破砕片を成形機１４に混合供給して所要の寸法形状のＲＰＦを押出し成形する。次に、成形品（ＲＰＦ）をブロアー１８により冷却器１７へ空気搬送して冷却した後、ベルトスケール１９により製品ヤード２０へ搬送して貯留する。
【００４３】
上記第１、第２供給機１０Ａ，１０Ｂから成形機１４への古紙破砕片、廃プラスチック破砕片の供給に際しては、第３、第４材質検出器１３Ａ，１３Ｂの検出結果に基づいて、第１、第２塩素含有量演算手段によって古紙破砕片、廃プラスチック破砕片の塩素含有量が算出されると共に、表示、記録され、それぞれの品質のチェックが可能となる。又、成形機１４における成形に際しては、古紙破砕片、廃プラスチック破砕片の供給量が、供給量制御手段によって制御され、成形機１４内の温度が所要の値に保持される。更に、成形機１４における成形に際しては、成形品の水分量が所要の値になるように、散水装置１６による散水量が、散水量制御手段によって制御される。
【００４４】
このＲＰＦの製造方法及びその製造設備によれば、古紙と廃プラスチックが時間をずらし別個に供給され、別個に破砕されて古紙破砕片、廃プラスチック破砕片となってから、古紙破砕片と廃プラスチック破砕片が別個に材質を検出され、かつ、発熱量を算出された後、成形機による成形に際し、古紙破砕片と廃プラスチック破砕片が算出された発熱量に基づいて所望の発熱量に対応する割合で混合されるので、ＲＰＦの発熱量を所望の発熱量に合わせて均一にすることができる。
【００４５】
図２は本発明に係るＲＰＦの製造設備の第２の実施の形態を示す概略構成図である。このＲＰＦの製造設備は、前述した第１の実施の形態のものが、供給コンベヤ１と破砕機２をそれぞれ１台とし、古紙と廃プラスチックを供給コンベヤ１により時間をずらし別個に破砕機２に供給して所要の寸法形状に別個に破砕して古紙破砕片、廃プラスチック破砕片としているのに対し、供給コンベヤを、古紙を供給する第１供給コンベヤ１Ａ、廃プラスチックを供給する第２供給コンベヤ１Ｂの２台とすると共に、破砕機を、第１供給コンベヤ１Ａから供給される古紙を所要の寸法に破砕する第１破砕機２Ａ、第２供給コンベヤ１Ｂから供給される廃プラスチックを所要の寸法に破砕する第２破砕機２Ｂの２台とし、古紙と廃プラスチックを第１、第２供給コンベヤ１Ａ，１Ｂにより同時に別個に第１、第２破砕機２Ａ，２Ｂに供給して別個に破砕し、所要の寸法の古紙破砕片、廃プラスチック破砕片を別個に得るようにしたものである。他の構成及び作用は、第１の実施の形態のものと同様であるので、同一の機能を奏する構成部材等には同一の符号を付してその説明を省略する。
【００４６】
このＲＰＦの製造方法及びその製造設備によれば、古紙と廃プラスチックが同時に別個に供給され、別個に破砕されて古紙破砕片、廃プラスチック破砕片となってから、古紙破砕片と廃プラスチック破砕片が別個に材質を検出され、かつ、発熱量を算出された後、成形機による成形に際し、古紙破砕片と廃プラスチック破砕片が算出された発熱量に基づいて所望の発熱量に対応する割合で混合されるので、第１のＲＰＦの製造及びその製造設備と同様に、ＲＰＦの発熱量を所望の発熱量に合わせて均一にすることができる。
【００４７】
図３は本発明に係るＲＰＦの製造設備の第３の実施の形態を示す概略構成図である。図中１Ｃは古紙（図示せず）を供給する供給量可変の第１供給コンベヤ、１Ｄは廃プラスチック（図示せず）を供給する供給量可変の第２供給コンベヤで、両供給コンベヤ１Ｃ，１Ｄの供給量の割合は、後述するように発熱量演算手段によって算出される発熱量に基づいて製品（成形品）としてのＲＰＦの発熱量が所望の発熱量に対応するように古紙と廃プラスチックの比率を制御する比率制御手段によって制御されるものである。２Ｃは第１、第２供給コンベヤ１Ｃ，１Ｄから同時に別個に供給される古紙と廃プラスチックの混合物を一緒に破砕し、所望の寸法の古紙破砕片、廃プラスチック破砕片とする破砕機で、この破砕機２Ｃとしては、前述した破砕機２、２Ａ，２Ｂと同様のものが用いられる。
【００４８】
３Ｃは破砕機２Ｃから排出される古紙破砕片と廃プラスチック破砕片の混合物（図示せず）を水平に搬送する搬送コンベヤ４Ｃの上方に配設され、古紙破砕片と廃プラスチック破砕片の混合物の材質を検出する第１材質検出器であり、この第１材質検出器３Ｃは、前述した第１、第２材質検出器３Ａ，３Ｂと同様のものである。そして、第１材質検出器３Ｃの検出結果は、制御盤５に入力され、この制御盤５に搭載した発熱量演算手段（図示せず）により、燃料不適物を除く古紙破砕片と廃プラスチック破砕片の混合物の発熱量が算出されるものであり、この発熱量演算手段によって算出された発熱量は、制御盤５に搭載した比率制御手段（図示せず）に出力され、比率制御手段によって、第１、第２供給コンベヤ１Ｃ，１Ｄの供給量の割合が、ＲＰＦの発熱量が所望の発熱量に対応するように制御されるものである。なお、発熱量は、破砕片の数にその破砕片の発熱量を乗じて得られる。
【００４９】
６Ｃは古紙破砕片と廃プラスチック破砕片の混合物から燃料不適物を除去する選別を行う選別手段であり、この選別手段６Ｃは、前述した第１、第２選別手段６Ａ，６Ｂと同様に、搬送コンベヤ４Ｃの搬出端に搬送方向と直角をなして水平に配設され、燃料として適合する古紙破砕片、廃プラスチック破砕片をそれぞれ圧縮空気により分岐板７Ｃを越えて吹き飛ばす多数のエアノズル８Ｃ、各エアノズル８Ｃと電磁弁を介在して接続された圧縮空気タンク（共に図示せず）、前述した制御盤５に搭載され、第１材質検出器３Ｃの検出結果に基づいて燃料として適合する古紙破砕片、廃プラスチック破砕片と対応する位置のエアノズル８Ｃを作動させるべく所要の電磁弁の動作を制御するノズル制御手段（図示せず）、及び第１材質検出器３Ｃの検出結果に基づき、燃料不適物と対応する位置のエアノズル８Ｃの不動作に伴って搬送コンベヤ４Ｃの搬出端から落下する燃料不適物を収容する不適物収容ボックス９Ｃからなる。
【００５０】
１０Ｃは選別手段６Ｃによって選別された古紙破砕片と廃プラスチック破砕片の混合物を貯留するホッパー１１Ｃ、及びホッパー１１Ｃに貯留された古紙破砕片と廃プラスチック破砕片の混合物を後述する成形機に供給する供給量可変のスクリューフィーダ１２Ｃからなる供給機であり、この供給機１０Ｃの供給量は、後述する成形機内の温度を所要の値に保持すべく、制御盤５に搭載した供給量制御手段（図示せず）によって成形機内の温度測定結果に基づいて制御されるものである。
【００５１】
１３Ｃは、供給機１０Ｃから供給される古紙破砕片と廃プラスチック破砕片の混合物の材質を検出する第２材質検出器であり、この第２材質検出器１３Ｃは、前述した第１材質検出器３Ｃと同様の機能を有するものであって、その検出結果は、制御盤５に入力され、古紙破砕片と廃プラスチック破砕片の混合物の品質をチェックすべく、塩素含有量演算手段（図示せず）によって上記混合物の塩素含有量が算出されると共に、表示、記録されるものである。
【００５２】
供給機１０Ｃから供給される古紙破砕片と廃プラスチック破砕片の混合物を、所要の寸法形状に押出し成形する成形機１４以降の構成は、前述した第１、第２の実施の形態のものと同様であるので、同一の機能を奏する構成部材等には同一の符号を付してその説明を省略する。
【００５３】
上記構成のＲＰＦの製造設備によってＲＰＦを製造するには、先ず、古紙と廃プラスチックを第１、第２供給コンベヤ１Ｃ，１Ｄにより同時に別個に破砕機２Ｃに供給して所要の寸法に一緒に破砕して古紙破砕片と廃プラスチック破砕片の混合物とする。次に古紙破砕片と廃プラスチック破砕片の混合物の材質を第１材質検出器３Ｃにより検出すると共に、この検出結果に基づいて燃料不適物を除く古紙破砕片と廃プラスチック破砕片の混合物の発熱量を発熱量演算手段により算出し、かつ、算出した発熱量に基づいてＲＰＦの発熱量が所望の発熱量と対応するように、第１供給コンベヤ１Ｃと第２供給コンベヤ１Ｃの供給量の割合を比率制御手段により制御する一方、第１材質検出器３Ｃの検出結果に基づいて古紙破砕片と廃プラスチック破砕片の混合物から燃料不適物を除去する選別を選別手段６Ｃによって行う。
【００５４】
次いで、燃料不適物が除去された古紙破砕片と廃プラスチック破砕片の混合物を供給機１０Ｃに貯留すると共に、成形機１４に供給して所要の寸法形状のＰＲＦを押出し成形する。次に、成形品（ＲＰＦ）をブロアー１８により冷却器１７へ空気搬送して冷却した後、ベルトスケール１９により製品ヤード２０へ搬送して貯留する。
【００５５】
上記供給機１０Ｃから成形機１４への古紙破砕片と廃プラスチック破砕片の混合物の供給に際しては、第２材質検出機１３Ｃの検出結果に基づいて塩素含有量演算手段によって上記混合物の塩素含有量が算出されると共に、表示、記録され、その品質のチェックが可能となる。又、成形機１４における成形に際しては、古紙破砕片と廃プラスチック破砕片の混合物の供給量が、供給量制御手段によって制御され、成形機１４内の温度が所要の値に保持される。更に、成形機１４における成形に際しては、成形品の水分量が所要の値になるように、散水装置１６による散水量が、散水量制御手段によって制御される。
【００５６】
このＲＰＦの製造方法及びその製造設備によれば、古紙と廃プラスチックが同時に別個に供給され、一緒に破砕されて古紙破砕片と廃プラスチック破砕片の混合物となってから、古紙破砕片と廃プラスチック破砕片の混合物が材質を検出されると共に、発熱量を算出された後、古紙破砕片と廃プラスチック破砕片の混合物が成形機により成形される一方、古紙と廃プラスチック破砕片の供給量の割合が算出された発熱量に基づいて所望の発熱量に対応するように制御されるので、第１、第２のＲＰＦの製造方法及びその製造設備と同様に、ＲＰＦの発熱量を所望の発熱量に合わせて均一にでき、かつ、設備の構成部材の点数を少なくすることができる。
【００５７】
なお、上述した各実施の形態においては、破砕片から燃料不適物を除去する選別を行う選別手段６Ａ，６Ｂ，６Ｃを備える場合について説明したが、これに限定されるものではなく、選別手段は無くてもよい。この場合、原料としての古紙、廃プラスチックから予め燃料不適物を除去しておくことが好ましい。又、塩素含有量を検出するための第３、第４材質検出器１３Ａ，１３Ｂ、第２材質検出器１３や成形機１４内の温度を所要の値に保持するための温度計１５及び供給量制御手段、成形品の水分量を所要の値に保持するための散水装置１６、ベルトスケール１９及び散水量制御手段は無くてもよい。更に、成形機１４は、リングダイ式成形機に限らず、二軸スクリュー式押出し成形機、その他であってもよい。
【００５８】
【発明の効果】
以上説明したように、本発明に係るＲＰＦの製造方法及びその製造設備は、以下に示すような優れた効果を奏するものである。
第１のＲＰＦの製造方法及びその製造設備によれば、古紙と廃プラスチックが時間をずらし別個に供給され、別個に破砕されて古紙破砕片、廃プラスチック破砕片となってから、古紙破砕片と廃プラスチック破砕片が別個に材質を検出されると共に、燃料不適物を除く発熱量を算出され、かつ、燃料不適物を除去された後、成形機による成形に際し、古紙破砕片と廃プラスチック破砕片が算出された発熱量に基づいて所望の発熱量に対応する割合で混合されるので、ＲＰＦの発熱量を所望の発熱量に合わせて均一にできると共に、燃料不適物の極めて少ない高品質のものとすることができる。
【００５９】
第２のＲＰＦの製造方法及びその製造設備によれば、古紙と廃プラスチックが同時に別個に供給され、別個に破砕されて古紙破砕片、廃プラスチック破砕片となってから、古紙破砕片と廃プラスチック破砕片が別個に材質を検出されると共に、燃料不適物を除く発熱量を算出され、かつ、燃料不適物を除去された後、成形機による成形に際し、古紙破砕片と廃プラスチック破砕片が算出された発熱量に基づいて所望の発熱量に対応する割合で混合されるので、第１のＲＰＦの製造及びその製造設備と同様に、ＲＰＦの発熱量を所望の発熱量に合わせて均一にできると共に、燃料不適物の極めて少ない高品質のものとすることができる。
【００６０】
第３のＲＰＦの製造方法及びその製造設備によれば、第１又は第２の方法及び設備による作用効果の他、混合供給される古紙破砕片と廃プラスチック破砕片が別個に材質を検出され、かつ、塩素含有量を算出されるのでＲＰＦの品質をチェックすることができる。
【００６１】
第４のＲＰＦの製造方法及びその製造設備によれば、第１、第２又は第３の方法及び設備による作用効果の他、成形機内の温度が所要の値に保持されるので、ＲＰＦの製造を良好に行うことができる。
【００６２】
第５のＲＰＦの製造方法及びその製造設備によれば、古紙と廃プラスチックが同時に別個に供給され、一緒に破砕されて古紙破砕片と廃プラスチック破砕片の混合物となってから、古紙破砕片と廃プラスチック破砕片の混合物が材質を検出されると共に、燃料不適物を除く発熱量を算出され、かつ、燃料不適物を除去された後、古紙破砕片と廃プラスチック破砕片の混合物が成形機により成形される一方、古紙と廃プラスチックの供給量の割合が算出された発熱量に基づいて所望の発熱量に対応するように制御されるので、第１、第２のＲＰＦの製造方法及びその製造設備と同様に、ＲＰＦの発熱量を所望の発熱量に合わせて均一にできると共に、燃料不適物の極めて少ない高品質のものとすることができ、かつ、設備の構成部材の点数を少なくすることができる。
【００６３】
第６のＲＰＦの製造方法及びその製造設備によれば、第５の方法及び設備による作用効果の他、古紙破砕片と廃プラスチック破砕片の混合物の材質が検出され、かつ、塩素含有量が算出されるので、第５のＲＰＦの製造方法及びその製造設備と同様に、ＲＰＦの品質をチェックすることができる。
【００６４】
第７のＲＰＦの製造方法及びその製造設備によれば、第５又は第６の方法及び設備による作用効果の他、成形機内の温度が所要の値に保持されるので、第４のＲＰＦの製造方法及びその製造設備と同様に、ＲＰＦの製造を良好に行うことができる。
【００６５】
又、第８のＲＰＦの製造方法及びその製造設備によれば、第１、第２、第３、第４、第５、第６又は第７の方法及び設備による作用効果の他、成形品の水分量が所要の値に保持されるので、ＲＰＦの発熱量を所望の発熱量に合わせて一層均一にすることができると共に、ＲＰＦの製造を一層良好に行うことができる。
【図面の簡単な説明】
【図１】本発明に係るＲＰＦの製造設備の第１の実施の形態を示す概略構成図である。
【図２】本発明に係るＲＰＦの製造設備の第２の実施の形態を示す概略構成図である。
【図３】本発明に係るＲＰＦの製造設備の第３の実施の形態を示す概略構成図である。
【符号の説明】
１ 供給コンベヤ
１Ａ 第１供給コンベヤ
１Ｂ 第２供給コンベヤ
１Ｃ 第１供給コンベヤ
１Ｄ 第２供給コンベヤ
２ 破砕機
２Ａ 第１破砕機
２Ｂ 第２破砕機
２Ｃ 破砕機
３Ａ 第１材質検出器
３Ｂ 第２材質検出器
３Ｃ 第１材質検出器
５ 制御盤
６Ａ 第１選別手段
６Ｂ 第２選別手段
６Ｃ 選別手段
７Ａ 分岐板
７Ｂ 分岐板
７Ｃ 分岐板
８Ａ エアノズル
８Ｂ エアノズル
８Ｃ エアノズル
９Ａ 不適物収容ボックス
９Ｂ 不適物収容ボックス
９Ｃ 不適物収容ボックス
１０Ａ 第１供給機
１０Ｂ 第２供給機
１０Ｃ 供給機
１１Ａ ホッパー
１１Ｂ ホッパー
１１Ｃ ホッパー
１２Ａ スクリューフィーダ
１２Ｂ スクリューフィーダ
１２Ｃ スクリューフィーダ
１３Ａ 第３材質検出器
１３Ｂ 第４材質検出器
１３Ｃ 第２材質検出器
１４ 成形機
１５ 温度計
１６ 散水装置
１９ ベルトスケール
２１ 水分計
２２ 水分量測定手段[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a method for manufacturing RPF (Refuse Paper & Plastic Fuel) obtained by extruding a mixture of waste paper and waste plastic, and a manufacturing facility therefor.
[0002]
[Prior art]
  RPF is used as an alternative to fossil fuels for kilns for cement firing, coke for blast furnace injection, fuel for boilers and dryers, etc. The calorific value and ash content of waste paper and waste plastics are as shown in Table 1. Varies depending on the mixing ratio.
[0003]
[Table 1]

[0004]
  Conventionally, in the production of RPF, mixing of waste paper and waste plastic is performed depending on the intuition of workers in the raw material yard.
[0005]
[Problems to be solved by the invention]
  However, in the conventional RPF manufacturing method, the mixing ratio of waste paper and waste plastic varies, and there is a problem in that the amount of heat generated varies from product to product, especially when viewed over a short span.
[0006]
  Then, this invention makes it a subject to provide the manufacturing method and its manufacturing equipment of RPF which can make calorific value more uniform.
[0007]
[Means for Solving the Problems]
  In order to solve the above-mentioned problems, the present inventionThe manufacturing method of the RPF according to the method was as follows using waste paper and waste plastic.
[0008]
  FirstIn the RPF manufacturing method, waste paper and waste plastic are supplied separately at different times and crushed separately, and the materials of the waste paper crushed pieces and waste plastic crushed pieces are detected separately, and fuel-inappropriate materials are removed based on the detected materials. After separately calculating the calorific value and selecting separately to remove the inappropriate fuel, waste paper fragments and waste plastic fragments are stored separately, and the desired calorific value is calculated based on the calculated calorific value. It is characterized by being mixed and fed at a ratio corresponding to the amount and extruded.
[0009]
  SecondThe RPF manufacturing method supplies waste paper and waste plastic separately and pulverizes them separately, detects the material of the waste paper crushed pieces and waste plastic crushed pieces separately, and based on this, the calorific value excluding unsuitable fuel Are separately calculated and sorted separately to remove unsuitable fuel, and then waste paper fragments and waste plastic fragments are stored separately, and the desired calorific value is obtained based on the calculated calorific value. It is characterized by being mixed and fed at a corresponding ratio and extruded.
[0010]
  ThirdIn the first or second method, the RPF production method of the present invention detects the material separately and calculates the chlorine content separately when mixing and supplying the waste paper fragment and waste plastic fragment. It is characterized by doing.
[0011]
  4thThe RPF manufacturing method of the first, firstTwo-wayIn the third method, the temperature at the time of the extrusion molding is measured, and the supply amount of the waste paper crushed pieces and the waste plastic crushed pieces is controlled so that the molding temperature becomes a required value.
[0012]
  5thThe RPF manufacturing method supplies waste paper and waste plastic separately and pulverizes them together, detects the material of the mixture of waste paper crushed pieces and waste plastic crushed pieces, and based on this, the calorific value excluding unsuitable fuel And calculating the ratio of the amount of waste paper and waste plastic supplied so as to correspond to a desired heat generation amount based on the calculated heat generation amount, A mixture of the crushed pieces and the waste plastic crushed pieces is stored and supplied and extruded.
[0013]
  6thThe RPF manufacturing method of5thIn the method, the material is detected and the chlorine content is calculated when supplying the mixture of the waste paper fragment and the waste plastic fragment.
[0014]
  7thThe RPF manufacturing method of5thOr6thIn this method, the temperature at the time of the extrusion molding is measured, and the supply amount of the mixture of the waste paper crushed pieces and the waste plastic crushed pieces is controlled so that the molding temperature becomes a required value.
[0015]
  or,8thThe RPF manufacturing method is the first, second, third, fourth, fifth,6 orIs7thIn this method, the moisture content of the extruded molded product is measured, and the moisture content of the mixture of the waste paper fragment and the waste plastic fragment is controlled so that the moisture content of the molded product becomes a required value. It is characterized by.
[0016]
  on the other hand,FirstThe RPF manufacturing facility detects the material of the waste paper or waste plastic supplied from the supply conveyor, the crusher for crushing the waste paper or waste plastic supplied from the supply conveyor, and the material of the waste paper crusher discharged from the crusher. 1 material detector, 2nd material detector that detects the material of waste plastic fragments discharged from the crusher, and calorific value of waste paper fragments excluding unsuitable fuel based on the detection result of the 1st material detector A first calorific value calculating means for calculating the second calorific value, a second calorific value calculating means for calculating the calorific value of the waste plastic fragment excluding the unsuitable fuel based on the detection result of the second material detector, and a first material detector The first sorting means for removing the unsuitable fuel from the waste paper fragment based on the detection result and the sorting for removing the unsuitable fuel from the waste plastic fragment based on the detection result of the second material detector The second sorting means, the first supply machine with variable supply amount for storing and supplying the waste paper fragments from which the unsuitable fuel has been removed by the first sorting means, and the waste from which the unsuitable fuel has been removed by the second sorting means The ratio of the supply amount of the second supply device with variable supply amount that stores and supplies the plastic crushed pieces and the first and second supply devices is set to the heat generation amount calculated by the first and second heat generation amount calculation means. Based on the ratio control means for controlling to correspond to the desired calorific value based on the above, the mixture of waste paper crushed pieces and waste plastic crushed pieces supplied from the first and second feeders is controlled by the ratio control means. And a molding machine.
[0017]
  SecondThe RPF manufacturing equipment includes a first supply conveyor that supplies waste paper, a second supply conveyor that supplies waste plastic, a first crusher that crushes waste paper supplied from the first supply conveyor, and a second supply conveyor. A second crusher for crushing the waste plastic supplied from the first crusher, a first material detector for detecting the material of the waste paper crusher discharged from the first crusher, and a waste plastic crusher discharged from the second crusher A second material detector for detecting the material of the paper, a first calorific value calculation means for calculating the calorific value of the waste paper fragment excluding the unsuitable fuel based on the detection result of the first material detector, and a second material detector A second calorific value calculation means for calculating the calorific value of the waste plastic fragment excluding the unsuitable fuel based on the detection result, and removing the unsuitable fuel from the waste paper fragment based on the detection result of the first material detector. 1st selection for sorting Means, a second sorting means for performing sorting to remove the unsuitable fuel from the waste plastic fragment based on the detection result of the second material detector, and a waste paper shredded piece from which the unsuitable fuel has been removed by the first sorting means. A first supply machine having a variable supply amount stored and supplied, a second supply machine having a variable supply quantity for storing and supplying the waste plastic crush from which the unsuitable fuel is removed by the second sorting means, and first and first The ratio control means for controlling the ratio of the supply amount of the two feeders so as to correspond to a desired heat generation amount based on the heat generation amounts calculated by the first and second heat generation amount calculation means, and the ratio control means And a molding machine for extruding a mixture of waste paper shredded pieces and waste plastic shredded pieces supplied from the first and second feeders.
[0018]
  ThirdRPF production equipmentOne or twoIsSecondA third material detector for detecting the material of the waste paper fragment supplied from the first supply device and a fourth material detector for detecting the material of the waste plastic fragment supplied from the second supply device. First chlorine content calculating means for calculating the chlorine content of the waste paper fragment based on the detection result of the third material detector, and chlorine content of the waste plastic fragment based on the detection result of the fourth material detector And a second chlorine content calculating means for calculating the amount.
[0019]
  4thThe RPF production facilities are the first and secondTwo-wayIsThirdA thermometer for measuring the temperature in the molding machine, and supply for controlling the supply amounts of the first and second feeders so that the temperature in the molding machine becomes a required value based on the measurement result of the thermometer. And a quantity control means.
[0020]
  5thThe RPF manufacturing equipment includes a first supply conveyor with a variable supply amount for supplying waste paper, a second supply conveyor with a variable supply amount for supplying waste plastic, and waste paper and waste supplied from the first and second supply conveyors. A crusher that crushes the plastic mixture, a first material detector that detects the material of the mixture of waste paper crusher and waste plastic crusher discharged from the crusher, and fuel based on the detection result of the first material detector The calorific value calculation means for calculating the calorific value of the mixture of waste paper shredded fragments and waste plastic shreds excluding unsuitable materials, and the inappropriate fuel from the mixture of waste paper shredded waste plastic waste fragments based on the detection result of the first material detector The ratio of the supply amount of the first and second supply conveyors to the selection means for performing the selection to remove the object and the desired heat generation amount based on the heat generation amount calculated by the heat generation amount calculation means A ratio control means to control, a feeder that stores and supplies a mixture of waste paper shredded pieces and waste plastic shredded pieces from which fuel inappropriate materials have been removed by the sorting means, and waste paper shredded pieces and waste plastic shreds supplied from the feeder And a molding machine for extruding the mixture of pieces.
[0021]
  6thRPF production equipment5thThe second material detector for detecting the material of the mixture of the used paper fragment and waste plastic fragment supplied from the feeder, and the used paper fragment and waste plastic based on the detection result of the second material detector. And a chlorine content calculating means for calculating the chlorine content of the mixture of crushed pieces.
[0022]
  7thRPF production equipment5thOr6thA thermometer for measuring the temperature in the molding machine, and a supply amount control means for controlling the supply amount of the feeder so that the temperature in the molding machine becomes a required value based on the measurement result of the thermometer. It is characterized by providing.
[0023]
  8thThe RPF production facilities are first, second, third, fourth, fifth,6 orIs7thThe water content measuring means for measuring the water content of the molded product discharged from the molding machine, the watering device with variable watering capacity to spray water into the molding machine, and the molding based on the measurement results of the water content measuring means. It has a sprinkling amount control means for controlling the sprinkling amount of the sprinkler so that the water amount of the product becomes a required value.
[0024]
[Action]
  In the first RPF production method and production facility of the present invention, waste paper and waste plastic are supplied separately at different times, and are crushed separately to become waste paper crushed pieces and waste plastic crushed pieces. The material is detected separately from the piece and waste plastic fragment.In addition, the calorific value excluding unsuitable fuel is calculated, and unfit fuel is removed.Then, when molding by the molding machine, the waste paper shredded pieces and the waste plastic shredded pieces are mixed at a ratio corresponding to a desired calorific value based on the calorific value calculated.
[0025]
  SecondIn the RPF manufacturing method and manufacturing equipment, waste paper and waste plastic are supplied separately at the same time, and are separately crushed into waste paper shredded pieces and waste plastic shredded pieces, and then waste paper shredded pieces and waste plastic shredded pieces are separated. The calorific value from which the material was detected and the calorific value excluding the unsuitable fuel was calculated, and the waste paper crushed pieces and the waste plastic crushed pieces were calculated when molding by the molding machine after removing the unsuitable fuel. Is mixed at a ratio corresponding to a desired calorific value.
[0026]
  ThirdIn the RPF manufacturing method and the manufacturing equipment therefor,One or twoIsSecondIn addition to the effects of the above method and equipment, the waste paper fragments and waste plastic fragments that are mixed and supplied are separately detected for the material and the chlorine content is calculated.
[0027]
  4thIn the RPF manufacturing method and the manufacturing equipment therefor,Two-wayIsThirdIn addition to the effects of the above method and equipment, the temperature in the molding machine is maintained at a required value.
[0028]
  5thIn the RPF manufacturing method and its manufacturing equipment, waste paper and waste plastic are supplied separately and crushed together to form a mixture of waste paper shatter and waste plastic shred, and then waste paper shatter and waste plastic shred The material of the mixture of pieces is detected, the calorific value excluding inappropriate fuel is calculated, and after the inappropriate fuel is removed, the mixture of waste paper fragments and waste plastic fragments is molded by a molding machine. On the other hand, the ratio of the supply amount of waste paper and waste plastic is controlled so as to correspond to a desired heat generation amount based on the calculated heat generation amount.
[0029]
  6thIn the RPF manufacturing method and the manufacturing equipment therefor,5thIn addition to the effects of the above method and equipment, the material of the mixture of waste paper fragments and waste plastic fragments is detected and the chlorine content is calculated.
[0030]
  7thIn the RPF manufacturing method and equipment therefor,5thOr6thIn addition to the effects of the above method and equipment, the temperature in the molding machine is maintained at a required value.
[0031]
  or,8thIn the RPF manufacturing method and the manufacturing equipment therefor, the first, second, third, fourth, fifth and sixthorIs7thIn addition to the effects of the method and equipment, the moisture content of the molded product is maintained at a required value.
[0032]
  The waste paper fragment and waste plastic fragment are preferably about 10 to 60 mm on a side. In addition, examples of the material of the used paper include newspapers and magazines. On the other hand, waste plastic materials include LDPE (low density polyethylene), HDPE (high density polyethylene), PP (polypropylene), PS (polystyrene), EPS (expanded polystyrene), A-PET (polyethylene terephthalate), m-PET. , PVC (vinyl chloride resin), PC (polycarbonate) and the like. Furthermore, the molded product is preferably a short cylinder having a diameter of 5 to 40 mm and a length of 10 to 100 mm. Furthermore, when the unsuitable fuel is not removed from the waste paper fragment and the waste plastic fragment, it is preferable to remove the unsuitable fuel from the waste paper and waste plastic as a raw material in advance. Examples of unsuitable fuels include metals such as aluminum and chlorinated plastics such as PVC.
[0033]
  As the crusher, there are a number of short columnar rotary blades projecting on the outer periphery of a horizontal rotor, a saw blade-like fixed blade disposed on one side of the rotor so as to mesh with the rotary blade, and a lower part of the rotor. A single-shaft crusher that is roughly composed of the arranged screen is used. The material detector irradiates near-infrared rays to the waste paper shredded pieces and waste plastic shredded pieces, and detects the material using the fact that the absorbance varies depending on the materials of the waste paper shredded pieces and waste plastic shredded pieces. The calorific value calculation means is calculated by multiplying the calorific value inherent to the material detected by the material detector and the number of fragments of the inherent material. As the molding machine, there is used a ring die type molding machine that is roughly composed of a ring-shaped die, a plurality of rollers that roll on the inner periphery of the die, and a cutter that is in sliding contact with the outer periphery of the die. As a sorting means, a large number of air nozzles and material detectors that are disposed at the carry-out end of a transport conveyor that conveys waste paper fragments and waste plastic fragments to detect the material by a material detector, and blows away the fragments with compressed air A device having nozzle control means for controlling the air nozzle at a position corresponding to the fragment of the required material detected by the above is used. As the moisture content measuring means, a moisture meter that measures the moisture content on the surface of the molded product, and a measuring instrument such as a belt scale that measures the weight of the molded product to measure the specific gravity of the molded product are used.
[0034]
DETAILED DESCRIPTION OF THE INVENTION
  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic configuration diagram showing a first embodiment of an RPF manufacturing facility according to the present invention. In the figure, 1 is a supply conveyor for supplying used paper or waste plastic (not shown), 2 is a used paper or waste plastic supplied from the supply conveyor 1, and has a required size, for example, a waste paper fragment of about 10 to 60 mm on one side, waste This crusher 2 is a crusher that crushes into plastic crushing pieces. As this crusher 2, for example, a large number of short columnar rotary blades projecting from the outer peripheral surface of a horizontal rotor, and one side of the rotor engaged with the rotary blades. A single-shaft crusher that is roughly composed of a disposed saw blade-shaped fixed blade and a screen disposed below the rotor is used.
[0035]
  Reference numeral 3A denotes a first material detector that is disposed above a conveyor 4A that horizontally conveys waste paper shredded pieces (not shown) discharged from the shredder 2, and detects a material of the waste paper shredded pieces. 3B denotes a shredder. 2 is a second material detector that is disposed above a conveyor 4B that horizontally conveys waste plastic crushed pieces (not shown) discharged from 2 and detects the material of the waste plastic crushed pieces. 3A, 3B irradiates near-infrared rays to waste paper shredded pieces and waste plastic shredded pieces transported on the transport conveyors 4A, 4B, and detects the material using the fact that the absorbance varies depending on the material (special (See Table 5-506832). Then, the detection results of both the material detectors 3A and 3B are input to the control panel 5, and a first calorific value calculating means (not shown) mounted on the control panel 5 is used to detect a metal such as aluminum or a chlorine such as PVC. The calorific value of waste paper fragments excluding plastics and other fuel inadequate materials (hereinafter the same) is calculated, and the second calorific value calculation means (not shown) mounted on the control panel 5 The calorific value of the waste plastic crushed pieces is calculated. Each calorific value is obtained by multiplying the number of crushed pieces by the calorific value of the crushed pieces.
[0036]
  6A is a first sorting means for removing unsuitable fuel from waste paper fragments, 6B is a second sorting means for removing unsuitable fuel from waste plastic fragments, and both sorting means 6A and 6B are A large number of waste paper fragments and waste plastic fragments, which are horizontally disposed at the delivery end of the conveyors 4A and 4B at right angles to the conveying direction and are suitable as fuel, are blown over the branch plates 7A and 7B by compressed air, respectively. Air nozzles 8A and 8B, compressed air tanks (both not shown) connected to the air nozzles 8A and 8B via solenoid valves, and mounted on the control panel 5 described above, the first and second material detectors 3A, Based on the detection result of 3B, the operation of the required solenoid valve is controlled to operate the air nozzles 8A and 8B at the positions corresponding to the waste paper fragment and waste plastic fragment suitable as fuel. , The second nozzle control means (not shown), and the conveyance conveyor along with the non-operation of the air nozzles 8A and 8B at the positions corresponding to the unsuitable fuel based on the detection results of the first and second material detectors 3A and 3B. It consists of unsuitable material accommodation boxes 9A and 9B for accommodating unsuitable materials that fall from the unloading ends of 4A and 4B.
[0037]
  Reference numeral 10A denotes a hopper 11A for storing used paper crushed pieces suitable as fuel sorted by the first sorting means 6A, and a variable feed amount screw feed for supplying the used paper crushed pieces stored in the hopper 11A to a molding machine to be described later.Da 1The first supply machine 2A, 10B is a hopper 11B for storing waste plastic fragments suitable as fuel selected by the second sorting means 6B, and a waste plastic fragment stored in the hopper 11B to a molding machine to be described later. It is a second feeder comprising a screw feeder 12B with a variable supply amount to be supplied, and the ratio of the supply amounts of both the feeders 10A and 10B is mounted on the control panel 5 and is calculated by the first and second heating value calculation means. Based on the generated calorific value, ratio control means (not shown) for controlling the ratio of the waste paper crushed pieces and the waste plastic crushed pieces so that the calorific value of the RPF as a product (molded product) corresponds to the desired calorific value It is to be controlled. Further, the supply amounts of the first and second supply machines 10A and 10B are set in the molding machine by a supply quantity control means (not shown) mounted on the control panel 5 in order to keep the temperature in the molding machine described later at a required value. It is controlled based on the temperature measurement result.
[0038]
  13A is a third material detector for detecting the material of the waste paper fragment supplied from the first supply machine 10A, and 13B is a fourth material detector for detecting the material of the waste plastic fragment supplied from the second supply machine 10B. It is. Both material detectors 13A and 13B have the same functions as the first and second material detectors 3A and 3B described above, and the respective detection results are input to the control panel 5, and waste paper fragments, In order to check the quality of the waste plastic fragment, the chlorine content of the waste paper fragment and waste plastic fragment is calculated and displayed and recorded by first and second chlorine content calculation means (not shown). Is.
[0039]
  14 is a waste paper shredded piece and waste plastic shredded piece mixed and supplied from the first and second feeders 10A and 10B at a ratio corresponding to a desired calorific value. This is a molding machine that extrudes into a 10-50 mm short cylinder, and this molding machine 14 is composed of a ring-shaped die, a plurality of rollers that roll on the inner periphery of the die, and a cutter that is in sliding contact with the outer periphery of the die. Has been. The molding machine 14 is provided with a thermometer 15 for measuring the temperature inside the molding machine 14, and the measurement result of the thermometer 15 is input to the control panel 5 and becomes a reference input element of the above-described supply amount control means. Is. Further, the molding machine 14 is provided with a sprinkling device 16 having a variable sprinkling amount for sprinkling water into a mixture of waste paper shredded pieces and waste plastic shredded pieces supplied therein. The watering amount of the watering device 16 is controlled by the watering amount control means described later based on the measurement result of the water content measuring means.
[0040]
  17 is a cooler that cools a molded product (RPF) discharged from the molding machine 14 and air-fitted through the blower 18, and 19 is weighed to measure the specific gravity of the RPF cooled by the cooler 17. At the same time, a belt scale transported to the product yard 20 is disposed above the belt scale 19 and constitutes a moisture content measuring means 22 in combination with a moisture meter 21 for measuring the moisture content on the surface of the RPF. is there. Then, the measurement result of the moisture content measuring means 22 is input to the control panel 5, and based on this measurement result, the water content of the RPF is set to a required value by the sprinkling amount control means (not shown) mounted on the control panel 5. The watering amount of the watering device 16 is controlled so that
[0041]
  In order to manufacture RPF by the RPF manufacturing facility having the above-described configuration, first, waste paper and waste plastic are supplied to the crusher 2 separately by shifting the time by the supply conveyor 1, and are separately crushed to the required dimensions, and the waste paper crushed pieces. Use waste plastic fragments. Next, the materials of the waste paper shredded pieces and the waste plastic shredded pieces are detected by the first and second material detectors 3A and 3B, and the waste paper shredded pieces and waste plastic shredded pieces excluding the unsuitable fuel based on the detection result. Are calculated by the first and second calorific value calculation means, and the first and second sorting means 6A and 6B perform sorting for removing unsuitable fuel from the waste paper fragment and waste plastic fragment.
[0042]
  Next, the waste paper fragments and waste plastic fragments from which the unsuitable fuel has been removed are stored in the first and second feeders 10A and 10B, and based on the calorific values calculated by the first and second calorific value calculation means. The ratio of the supply amounts of the first and second feeders 10A and 10B is controlled by the ratio control means so as to correspond to the desired heat generation amount, and the waste paper crushed pieces and the waste plastic crushed pieces are mixed and supplied to the molding machine 14. Then, an RPF having a required dimension and shape is extruded. Next, the molded product (RPF) is blown by the blower 18.CoolerAfter being conveyed to air 17 and cooled, it is conveyed to a product yard 20 by a belt scale 19 and stored.
[0043]
  When supplying waste paper fragments and waste plastic fragments from the first and second feeders 10A and 10B to the molding machine 14, the first and second material detectors 13A and 13B are used to determine the first The chlorine content of the waste paper shredded piece and waste plastic shredded piece is calculated and displayed and recorded by the second chlorine content calculating means, and the quality of each can be checked. Further, at the time of molding in the molding machine 14, the supply amount of the waste paper shredded pieces and the waste plastic shredded pieces is controlled by the supply amount control means, and the temperature in the molding machine 14 is maintained at a required value. Furthermore, at the time of molding in the molding machine 14, the amount of water sprayed by the water spray device 16 is controlled by the water spray amount control means so that the water content of the molded product becomes a required value.
[0044]
  thisAccording to the RPF manufacturing method and its manufacturing equipment, waste paper and waste plastic are supplied separately at different times and are crushed separately to become waste paper shredded pieces and waste plastic shredded pieces. After the material is detected separately and the calorific value is calculated, the ratio of the waste paper fragment and waste plastic fragment corresponding to the desired calorific value based on the calculated calorific value when molding by the molding machine Therefore, the heat generation amount of the RPF can be made uniform according to the desired heat generation amount.
[0045]
  FIG. 2 is a schematic configuration diagram showing a second embodiment of the RPF manufacturing facility according to the present invention. This RPF manufacturing facility is the same as that of the first embodiment described above, but the supply conveyor 1 and the crusher 2 are each one, and the waste paper and the waste plastic are shifted to the crusher 2 separately by shifting the time by the supply conveyor 1. While the paper is supplied and crushed separately into the required size and shape to make waste paper shredded pieces and waste plastic shredded pieces, the feed conveyor is the first feed conveyor 1A for feeding waste paper and the second feed conveyor for feeding waste plastic 1B and two crushers, the first crusher 2A for crushing waste paper supplied from the first supply conveyor 1A to the required dimensions, and the waste plastic supplied from the second supply conveyor 1B to the required dimensions 2nd crusher 2B that crushes into two, and waste paper and waste plastic are simultaneously supplied to the first and second crushers 2A and 2B separately by the first and second supply conveyors 1A and 1B. Separately crushed waste paper fragments of the required size, in which to obtain separately the waste plastic fragments. Since other configurations and operations are the same as those of the first embodiment, the same reference numerals are given to structural members having the same functions, and the description thereof is omitted.
[0046]
  thisAccording to the RPF manufacturing method and its manufacturing equipment, waste paper and waste plastic are supplied separately at the same time, and are separately crushed into waste paper shredded pieces and waste plastic shredded pieces. After the material is separately detected and the calorific value is calculated, waste paper fragments and waste plastic fragments are mixed at a ratio corresponding to the desired calorific value based on the calculated calorific value when molding with a molding machine. Therefore, similarly to the production of the first RPF and its production equipment, the calorific value of the RPF can be made uniform according to the desired calorific value.
[0047]
  FIG. 3 is a schematic configuration diagram showing a third embodiment of the RPF manufacturing facility according to the present invention. In the figure, 1C is a first supply conveyor with variable supply amount for supplying waste paper (not shown), 1D is a second supply conveyor with variable supply amount for supplying waste plastic (not shown), and both supply conveyors 1C and 1D. As will be described later, the ratio of the supply amount of the waste paper and the waste plastic is set so that the heat generation amount of the RPF as a product (molded product) corresponds to the desired heat generation amount based on the heat generation amount calculated by the heat generation amount calculation means. It is controlled by ratio control means for controlling the ratio. 2C is a crusher that crushes a mixture of waste paper and waste plastic supplied separately from the first and second supply conveyors 1C and 1D together to make waste paper shredded pieces and waste plastic shredded pieces of desired dimensions. As crusher 2C, the thing similar to crusher 2, 2A, 2B mentioned above is used.
[0048]
  3C is disposed above a conveyor 4C that horizontally conveys a mixture (not shown) of waste paper fragments and waste plastic fragments discharged from the crusher 2C, and contains a mixture of waste paper fragments and waste plastic fragments. This is a first material detector that detects the material, and this first material detector 3C is the same as the first and second material detectors 3A and 3B described above. Then, the detection result of the first material detector 3C is input to the control panel 5, and the waste paper fragment and waste plastic fragment excluding the unsuitable fuel are removed by the calorific value calculation means (not shown) mounted on the control panel 5. The calorific value of the mixture of pieces is calculated, and the calorific value calculated by the calorific value calculation means is output to a ratio control means (not shown) mounted on the control panel 5, and by the ratio control means, The ratio of the supply amount of the first and second supply conveyors 1C and 1D is controlled so that the heat generation amount of the RPF corresponds to the desired heat generation amount. The calorific value is obtained by multiplying the number of crushed pieces by the calorific value of the crushed pieces.
[0049]
  6C is a sorting means for performing sorting to remove unsuitable fuel from the mixture of waste paper shattered pieces and waste plastic shredded pieces. This sorting means 6C is transported in the same manner as the first and second sorting means 6A and 6B described above. A number of air nozzles 8C, each of which is disposed horizontally at the delivery end of the conveyor 4C in a direction perpendicular to the transport direction and blows off used paper crushed pieces and waste plastic crushed pieces over the branch plate 7C by compressed air. Compressed air tank (not shown) connected to 8C via a solenoid valve (both not shown), waste paper shredded piece mounted on the control panel 5 and adapted as fuel based on the detection result of the first material detector 3C, Nozzle control means (not shown) for controlling the operation of a required electromagnetic valve to operate the air nozzle 8C at a position corresponding to the waste plastic fragment, and the first material detector 3C Based on the detection result, consisting of unsuitable material accommodating box 9C for accommodating the fuel unsuitable material falling from the carry-out end of the conveyor 4C with the inoperative air nozzles 8C of positions corresponding to the fuel unsuitable product.
[0050]
  Reference numeral 10C denotes a hopper 11C for storing a mixture of used paper crushed pieces and waste plastic crushed pieces sorted by the sorting means 6C, and a mixture of used paper crushed pieces and waste plastic crushed pieces stored in the hopper 11C to a molding machine to be described later. Screw fee with variable supplyDa 1The supply amount of the supply device 10C is determined by the supply amount control means (not shown) mounted on the control panel 5 in order to keep the temperature in the molding machine described later at a required value. It is controlled based on the temperature measurement result.
[0051]
  13C is a second material detector for detecting the material of the mixture of waste paper fragments and waste plastic fragments supplied from the feeder 10C. The second material detector 13C is the first material detector 3C described above. The detection result is input to the control panel 5, and a chlorine content calculation means (not shown) is used to check the quality of the mixture of waste paper shredded pieces and waste plastic shredded pieces. The chlorine content of the mixture is calculated and displayed and recorded.
[0052]
  The configuration after the molding machine 14 for extruding a mixture of waste paper shredded pieces and waste plastic shredded pieces supplied from the feeder 10C into a required size and shape is the same as that of the first and second embodiments described above. Therefore, the same code | symbol is attached | subjected to the structural member etc. which show | play the same function, and the description is abbreviate | omitted.
[0053]
  In order to manufacture RPF by the RPF manufacturing facility having the above-described configuration, first, waste paper and waste plastic are simultaneously supplied separately to the crusher 2C by the first and second supply conveyors 1C and 1D, and are crushed together to the required dimensions. A mixture of waste paper fragments and waste plastic fragments. Next, the material of the mixture of the waste paper fragment and waste plastic fragment is detected by the first material detector 3C, and the calorific value of the mixture of the waste paper fragment and waste plastic fragment excluding the unsuitable fuel based on the detection result. Is calculated by the calorific value calculation means, and the ratio of the supply amounts of the first supply conveyor 1C and the second supply conveyor 1C is set so that the RPF calorific value corresponds to the desired calorific value based on the calculated calorific value. While being controlled by the ratio control means, sorting is performed by the sorting means 6C to remove the unsuitable fuel from the mixture of the waste paper fragment and waste plastic fragment based on the detection result of the first material detector 3C.
[0054]
  Next, the mixture of used paper crushed pieces and waste plastic crushed pieces from which fuel-inappropriate materials have been removed is stored in the feeder 10C and supplied to the molding machine 14 to extrude a PRF having a required size and shape. Next, after the molded product (RPF) is air conveyed to the cooler 17 by the blower 18 and cooled, the molded product (RPF) is conveyed to the product yard 20 by the belt scale 19 and stored.
[0055]
  When supplying the mixture of waste paper fragments and waste plastic fragments from the feeder 10C to the molding machine 14, the chlorine content of the mixture is determined by the chlorine content calculation means based on the detection result of the second material detector 13C. It is calculated, displayed and recorded, and its quality can be checked. Further, at the time of molding in the molding machine 14, the supply amount of the mixture of the waste paper crushed pieces and the waste plastic crushed pieces is controlled by the supply amount control means, and the temperature in the molding machine 14 is maintained at a required value. Furthermore, at the time of molding in the molding machine 14, the amount of water sprayed by the water spray device 16 is controlled by the water spray amount control means so that the water content of the molded product becomes a required value.
[0056]
  thisAccording to the RPF manufacturing method and its manufacturing equipment, waste paper and waste plastic are supplied separately at the same time and crushed together to form a mixture of waste paper shatter and waste plastic shred. After the material mixture is detected and the calorific value is calculated, the mixture of waste paper fragments and waste plastic fragments is formed by the molding machine, while the ratio of the supply amount of waste paper and waste plastic fragments is Since the control is performed so as to correspond to the desired heat generation amount based on the calculated heat generation amount, the heat generation amount of the RPF is changed to the desired heat generation amount in the same manner as in the first and second RPF manufacturing methods and manufacturing equipment. It is possible to make them uniform and to reduce the number of components of equipment.
[0057]
  In each of the above-described embodiments, the case where the sorting means 6A, 6B, and 6C that perform sorting for removing unsuitable fuel from the crushed pieces has been described. However, the present invention is not limited to this, and the sorting means is not limited to this. There is no need. In this case, it is preferable to remove inadequate fuel from waste paper and waste plastic as raw materials. In addition, a thermometer 15 and a supply amount for maintaining the temperature in the third and fourth material detectors 13A and 13B, the second material detector 13 and the molding machine 14 for detecting the chlorine content at required values. Control means, watering device 16 for maintaining the moisture content of the molded product at a required value, belt scale19In addition, the sprinkling amount control means may be omitted. Furthermore, the molding machine 14 is not limited to a ring die type molding machine, but may be a twin screw type extrusion molding machine or the like.
[0058]
【The invention's effect】
  As explained above,The RPF manufacturing method and manufacturing equipment according to the present invention have the following excellent effects.
  FirstAccording to the RPF manufacturing method and manufacturing equipment of the present invention, waste paper and waste plastic are supplied separately at different times, and are separately crushed into waste paper shredded pieces and waste plastic shredded pieces. The material of the crushed pieces is detected separately, the calorific value excluding the unsuitable fuel is calculated, and after the unfit fuel is removed, the waste paper crushed pieces and the waste plastic crushed pieces are calculated during molding by the molding machine. Since it is mixed at a ratio corresponding to the desired calorific value based on the generated calorific value, the RPF calorific value can be made uniform according to the desired calorific value, and it should be of high quality with very few unsuitable fuels. be able to.
[0059]
  SecondAccording to the RPF manufacturing method and manufacturing equipment of the present invention, waste paper and waste plastic are supplied separately separately, and are separately crushed into waste paper shredded pieces and waste plastic shredded pieces. Was detected separately, the calorific value excluding the unsuitable fuel was calculated, and after the unsuitable fuel was removed, waste paper fragments and waste plastic fragments were calculated during molding by the molding machine. Since it is mixed at a rate corresponding to the desired calorific value based on the calorific value,FirstIn the same way as the production of the RPF and the production equipment thereof, the calorific value of the RPF can be made uniform according to the desired calorific value, and the quality of the fuel can be reduced to a high quality.
[0060]
  ThirdAccording to the RPF manufacturing method and the manufacturing equipment ofOne or twoIsSecondIn addition to the effects of the above method and equipment, the quality of the RPF can be checked because the materials of the waste paper shredded fragments and waste plastic shredded fragments supplied and mixed are separately detected and the chlorine content is calculated.
[0061]
  According to the fourth RPF manufacturing method and the manufacturing equipment therefor,Two-wayIsThirdSince the temperature in the molding machine is maintained at a required value in addition to the operational effects of the method and equipment, the RPF can be manufactured satisfactorily.
[0062]
  5thAccording to the RPF manufacturing method and manufacturing equipment of the present invention, waste paper and waste plastic are supplied separately at the same time and crushed together to form a mixture of waste paper shatter and waste plastic shred. The mixture of the crushed pieces is detected, the calorific value excluding the unsuitable fuel is calculated, and after the unfit fuel is removed, the mixture of the used paper crushed pieces and the waste plastic crushed pieces is formed by the molding machine. On the other hand, since the ratio of the supply amount of waste paper and waste plastic is controlled to correspond to the desired heat generation amount based on the calculated heat generation amount,First,SecondIn the same way as the RPF manufacturing method and manufacturing equipment therefor, it is possible to make the RPF calorific value uniform according to the desired calorific value, to achieve high quality with extremely few fuel inadequate materials, The number of constituent members can be reduced.
[0063]
  6thAccording to the RPF manufacturing method and manufacturing equipment of5thSince the material of the mixture of waste paper fragments and waste plastic fragments is detected and the chlorine content is calculated in addition to the effects and effects of the method and facility, the same as in the fifth RPF manufacturing method and its manufacturing equipment In addition, the quality of the RPF can be checked.
[0064]
  7thAccording to the RPF manufacturing method and manufacturing equipment of5thOr6thIn addition to the effects of the method and equipment, the temperature in the molding machine is maintained at a required value.4thRPF can be manufactured satisfactorily in the same manner as the RPF manufacturing method and manufacturing equipment thereof.
[0065]
  or,8thAccording to the RPF manufacturing method and the manufacturing equipment therefor, the first, second, third, fourth, fifth,6 orIs7thIn addition to the operational effects of the method and equipment, the moisture content of the molded product is maintained at a required value, so that the RPF heat generation amount can be made more uniform according to the desired heat generation amount, and the RPF can be manufactured. Even better.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram showing a first embodiment of an RPF production facility according to the present invention.
FIG. 2 is a schematic configuration diagram showing a second embodiment of an RPF production facility according to the present invention.
FIG. 3 is a schematic configuration diagram showing a third embodiment of an RPF production facility according to the present invention.
[Explanation of symbols]
1 Supply conveyor
1A First supply conveyor
1B Second supply conveyor
1C First supply conveyor
1D Second supply conveyor
2 Crusher
2A First crusher
2B 2nd crusher
2C crusher
3A First material detector
3B Second material detector
3C 1st material detector
5 Control panel
6A First selection means
6B Second sorting means
6C sorting means
7A branch plate
7B Branch plate
7C branch plate
8A Air nozzle
8B Air nozzle
8C air nozzle
9A Unsuitable material storage box
9B Unsuitable material storage box
9C unsuitable material storage box
10A 1st feeder
10B Second feeder
10C feeder
11A Hopper
11B Hopper
11C hopper
12A Screw feeDa
12B Screw feeDa
12C Screw feeDa
13A Third material detector
13B Fourth material detector
13C Second material detector
14 Molding machine
15 Thermometer
16 Watering device
19 Belt scale
21 Moisture meter
22 Moisture content measuring means

Claims (16)

  Waste paper and waste plastic are supplied separately at different times and crushed separately, and the materials of the waste paper crushed pieces and waste plastic crushed pieces are detected separately, and based on this, the calorific value excluding the unsuitable fuel is calculated separately. In addition, after performing separate selection to remove unsuitable fuel, waste paper fragments and waste plastic fragments are stored separately and mixed at a rate corresponding to the desired calorific value based on the calculated calorific value. A method for producing an RPF, characterized by being supplied and extruded.   Waste paper and waste plastic are supplied separately and crushed separately, and the materials of the waste paper crushed pieces and waste plastic crushed pieces are detected separately, and based on this, the calorific value excluding inappropriate fuel is calculated separately, and Then, after selecting separately to remove the unsuitable fuel, the waste paper fragments and waste plastic fragments are stored separately and mixed and supplied at a ratio corresponding to the desired calorific value based on the calculated calorific value. A process for producing RPF, which comprises extrusion molding. Upon mixing the supply of the waste paper fragments and the waste plastic fragments, their material separately detected, and, according to claim 1 or claim 2, characterized in that to calculate their chlorine content separately RPF manufacturing method. Measuring the temperature during the extrusion, and claim 1, the molding temperature and controlling the supply of waste paper fragments and the waste plastic fragments so that the desired value, according to claim 2 or A method for producing the RPF according to claim 3.   Waste paper and waste plastic are supplied separately and crushed together, the material of the mixture of waste paper crushed pieces and waste plastic crushed pieces is detected, the calorific value excluding unsuitable fuel is calculated based on this, and fuel After sorting to remove unsuitables, the ratio of the waste paper and waste plastic supply amount is controlled based on the calculated calorific value to correspond to the desired calorific value. A method for producing an RPF, wherein the mixture is stored and supplied and extruded. 6. The method for producing an RPF according to claim 5 , wherein the material is detected and the chlorine content is calculated when supplying the mixture of the waste paper fragment and waste plastic fragment. Measuring the temperature during the extrusion, and claim 5 or claim 6 molding temperature and controlling the supply amount of the mixture of the required values become as waste paper fragments and the waste plastic fragments A method for producing the RPF described in 1. The moisture content of the extruded molded product is measured, and the moisture content of the mixture of the waste paper crushed pieces and the waste plastic crushed pieces is controlled so that the moisture content of the molded products becomes a required value. The manufacturing method of RPF as described in any one of Claim 1 thru | or 7 .   A supply conveyor that supplies waste paper or waste plastic, a crusher that crushes waste paper or waste plastic supplied from the supply conveyor, a first material detector that detects the material of the waste paper fragments that are discharged from the crusher, and crushing A second material detector for detecting the material of the waste plastic fragment discharged from the machine, and a first calorific value for calculating the calorific value of the waste paper fragment excluding inappropriate fuel based on the detection result of the first material detector Waste paper based on the detection results of the calculation means, the second heating value calculation means for calculating the heating value of the waste plastic fragment excluding the unsuitable fuel based on the detection result of the second material detector, and the detection result of the first material detector A first sorting means for performing sorting for removing unsuitable fuel from the fragments, a second sorting means for performing sorting for removing unsuitable fuel from the waste plastic fragment based on the detection result of the second material detector, 1 The first supply machine that stores and supplies waste paper fragments from which inappropriate fuel has been removed by another means, and the waste plastic fragments from which inappropriate fuel has been removed by the second sorting means are stored and supplied. The ratio of the supply amount of the supply amount variable second supply device and the first and second supply devices corresponds to the desired heat generation amount based on the heat generation amount calculated by the first and second heat generation amount calculation means. And a ratio control unit that controls the ratio and a molding machine that is controlled by the ratio control unit to extrude a mixture of waste paper fragment and waste plastic fragment supplied from the first and second feeders. RPF manufacturing equipment.   A first supply conveyor for supplying waste paper, a second supply conveyor for supplying waste plastic, a first crusher for crushing waste paper supplied from the first supply conveyor, and waste plastic supplied from the second supply conveyor A second crusher that crushes, a first material detector that detects the material of the waste paper crusher discharged from the first crusher, and a second that detects the material of the waste plastic crusher discharged from the second crusher. A material detector, a first calorific value calculating means for calculating the calorific value of the waste paper fragment excluding the unsuitable fuel based on the detection result of the first material detector, and a fuel based on the detection result of the second material detector Second calorific value calculation means for calculating the calorific value of waste plastic crushed pieces excluding unsuitables, and first sorting means for performing sorting for removing unsuitable fuel from waste paper crushed pieces based on the detection result of the first material detector. And second material detection The second sorting means for sorting out the unsuitable fuel from the waste plastic fragment based on the detection result, and the supply amount variable for storing and supplying the waste paper fragment from which the unsuitable fuel has been removed by the first sorting means Of the first supply device, the second supply device with variable supply amount for storing and supplying waste plastic fragments from which the unsuitable fuel has been removed by the second sorting means, and the supply amounts of the first and second supply devices Ratio control means for controlling the ratio so as to correspond to a desired heat generation amount based on the heat generation amount calculated by the first and second heat generation amount calculation means, and the first and second controlled by the ratio control means. An RPF production facility comprising: a molding machine for extruding a mixture of waste paper shredded pieces and waste plastic shredded pieces supplied from a feeder. A third material detector for detecting the material of the waste paper fragment supplied from the first supply device, a fourth material detector for detecting the material of the waste plastic fragment supplied from the second supply device, and a third material detector. First chlorine content calculating means for calculating the chlorine content of the waste paper fragment based on the detection result of the material detector, and calculating the chlorine content of the waste plastic fragment based on the detection result of the fourth material detector. RPF manufacturing facility according to claim 9 or claim 10, characterized in that it comprises a second chlorine content calculating means. A thermometer for measuring the temperature in the molding machine, and a supply amount control means for controlling the supply amounts of the first and second feeders so that the temperature in the molding machine becomes a required value based on the measurement result of the thermometer; The RPF manufacturing facility according to any one of claims 9 to 11, further comprising:   A first supply conveyor with a variable supply amount for supplying waste paper, a second supply conveyor with a variable supply amount for supplying waste plastic, and a shredding for crushing a mixture of waste paper and waste plastic supplied from the first and second supply conveyors , A first material detector for detecting the material of the mixture of waste paper shredder and waste plastic shredder discharged from the shredder, and waste paper shredded waste excluding unsuitable fuel based on the detection result of the first material detector And calorific value calculation means for calculating the calorific value of the mixture of the waste plastic fragment and the waste plastic fragment, and sorting to remove unsuitable fuel from the mixture of waste paper fragment and waste plastic fragment based on the detection result of the first material detector Ratio control means for controlling the ratio of the supply amounts of the sorting means and the first and second supply conveyors so as to correspond to a desired heat generation amount based on the heat generation amount calculated by the heat generation amount calculation means , A feeder that stores and supplies a mixture of waste paper fragments and waste plastic fragments from which unsuitable fuel has been removed by the sorting means, and a mixture of waste paper fragments and waste plastic fragments supplied from the feeder An RPF manufacturing facility comprising: a molding machine that performs the above-described process. A second material detector for detecting the material of the mixture of waste paper shredded pieces and waste plastic shredded pieces supplied from the feeder; and a mixture of waste paper shredded pieces and waste plastic shredded pieces based on the detection results of the second material detector. The RPF manufacturing facility according to claim 13, further comprising: a chlorine content calculation unit that calculates the chlorine content of the RPF. A thermometer for measuring the temperature in the molding machine, and a supply amount control means for controlling the supply amount of the feeder so that the temperature in the molding machine becomes a required value based on the measurement result of the thermometer. The RPF manufacturing facility according to claim 13 or 14 . Moisture amount measuring means for measuring the moisture content of the molded product discharged from the molding machine, a watering amount variable watering device for spraying water into the molding machine, and the moisture content of the molded product based on the measurement result of the moisture content measuring means The RPF production facility according to any one of claims 9 to 15, further comprising: a sprinkling amount control unit that controls a sprinkling amount of the sprinkler so that the value becomes a required value.

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