JP3623898B2

JP3623898B2 - Method and apparatus for heat treating organic waste

Info

Publication number: JP3623898B2
Application number: JP25368299A
Authority: JP
Inventors: 佳行柏木; 信行吉岡; 昭洋赤堀
Original assignee: Meidensha Corp
Current assignee: Meidensha Corp
Priority date: 1999-09-07
Filing date: 1999-09-07
Publication date: 2005-02-23
Anticipated expiration: 2019-09-07
Also published as: JP2001072980A

Description

【０００１】
【発明の属する技術分野】
本願の発明は、有機物を乾燥、炭化処理する方法と装置、中でも、多量の水分を含有する有機性廃棄物を乾燥及び炭化処理するのに適した処理方法と装置に関するもので、例えば、厩舎等の敷き藁、養鶏状の鶏糞、脱穀した籾殻、コーヒーや紅茶等の搾り滓、野菜屑その他の厨芥、ゴルフ場等の刈り芝、その他有機材料からなる産業廃棄物等々の有機性廃棄物を処理するのに適した乾燥及び炭化処理する方法とその処理装置に関するものである。
【０００２】
【従来の技術】
植物性の廃棄物の処理方法としては、野焼きを含めて自然乾燥させたものを焼却する方法が、従来から一般に広く採用されてきたが、近年の生活環境や社会環境の変化につれて単に焼却するだけの方法は採用できなくなり、特に、腐敗臭やその他の悪臭及び煙その他の排気ガスを伴うものは、その処理を適切に行わなければ許されなくなってきた。
【０００３】
その解決策の一つとして、特開昭５０−１３０８０３号公報に見るように、野菜や草木の屑等を乾留して焼却する処理方法が提案されているが、それは燃焼室と乾留室とを分離して設けた装置に於いて、燃焼室内に燃焼し易い木片等を投入して燃焼した熱で乾留室内に投入された野菜や草木の屑等を乾留するようにしたもので、燃焼効率が悪くて、また悪臭を発生する恐れがあるものである。
【０００４】
また、別の解決策として、特開昭５２−２１１６７号公報に見るように、厨芥や雑草等を粗砕及び異物分離した後で、ジューサー又はすりつぶし機により微細化してから一次乾燥したものを更に造粒化して、それを二次乾燥を行って、発生するガスを分離した後、有機質肥料または飼料に加工して、ガスは燃焼処理する方法があるが、これは処理に多くの手間を要し、また、刈り芝やコーヒー滓等の乾燥や炭化処理にはあまり適していない。
【０００５】
上記した従来技術を、牛舎や厩舎で使用した敷き藁や脱穀した後の籾殻、砂を含有する刈り芝、水分を含むコーヒーや豆腐の搾り滓等に適用して処理するには、含水率が多過ぎたり、難燃性であったりして、思うような処理ができず、また、天日乾燥してから処理しようとすれば、腐敗して悪臭を放って処置に困る原因になる。
特に、ゴルフ場の刈り取った芝には、雑草と相当量の砂が混ざっており、上記のような従来の焼却装置を用いたのでは、刈り取ってすぐの生芝そのままのもを、完全に燃焼させたり、また、炭化処理することは不可能であった。
【０００６】
そこで、刈り芝や籾殻等の多量の水分を含んだ有機物を炭化処理するものとして、特開平６−１２２８７９号公報に見るような装置があるが、それは、天井面にバーナを備えた熱輻射源を設けて、且つ、炉内を貧酸素状態に保った円筒状をしたトンネル式の乾燥炉内に、刈り芝等を撹拌しつつ移送する一対のパドルを配置して、ホッパから水分を含んだ刈り芝等を投入する投入口と、芝等から蒸発した水分を排出する排気口とを前記乾燥炉の前後端に設けると共に、先端部に設けたオーバフローシュートを介して乾燥炉よりも高い温度に保つ熱輻射源を天井面に設けた炭化炉の端部を接続して、前記乾燥炉で乾燥した芝等を炭化炉内に供給して、一対のパドルにより撹拌、移送しつつ炭化させた後、前記シュートとは反対側の端部に形成した排出口に設けた開閉弁から草炭を取り出すようにしたものである。
【０００７】
しかし、上記発明に於いては、乾燥炉及び炭化炉の天井面に熱輻射源であるバーナを設けた直熱式であるので、各炉内の温度や酸素量をそれぞれの最適な温度範囲に制御しなければならないという困難な操作が伴ったり、また、ゴルフ場の刈り芝は、延びた芝を刈り取った後で、芝生の凹凸等の傷んだ部分をなくすために、芝生の窪んだ部分に砂を入れて平らにならす作業を行なうので、多量の砂を含有しているから炭化物と砂とを分離して再利用することが望まれるが、これらの点についての考慮がなされていない。
【０００８】
そこで、これら従来技術を改良して、砂を含んだ刈り芝や多量の水分を含んだコーヒー滓等の処理に適した外熱式の炭化処理装置を、特開平８−１０４８８０号として出願人は提案している。
その発明は、内部にスクリューコンベヤを設けるか、又は、内面に螺旋状の溝を設けた円筒状の加熱内筒と該内筒を囲むように加熱路を設けて外套部を形成して、前記内筒部分を外部から加熱して間接的に乾燥、炭化するようにして外熱式の炭化処理炉を形成し、前記内部加熱筒の一方の端部に刈り取った砂混じりの芝を受入れるためのホッパーと該ホッパーの下部にスクリューフィーダを設けると共に、他方の端部には炭化処理炉で処理した芝の炭化生成物と砂とを冷却、分離する冷却分離塔を設け、炭化処理炉の外套部に熱風を供給する熱風発生炉を接続して炭化処理装置を構成したものである。
【０００９】
しかし、上記発明は、焼成炉を一基の加熱筒で構成しているので焼成処理量には制限があり、この形式で処理量を大きくしようとすれば、加熱筒部分を大径にするか、または、加熱筒を長尺のものにしたり、あるいは、ロータリーキルン式にすることが必要となる。
そのように装置が大型化すると、装置を設置するのに広い場所が必要となり、また、所定の温度に加熱するのに時間がかかると同時に、装置を気密に保つ構造が複雑になり、維持費が嵩むことが分かったので、上記発明を更に改良した先行技術として、出願人は特開平９−６７５８０号に記載するような発明を提案している。
【００１０】
上記発明は、図８に示すように、内部に設けた移送、攪拌部材５４の両端を軸支してなる外熱式の円筒体（加熱シリンダー）５２を加熱炉５１内に横置にして複数多段状に重ねて配置して、該円筒体の端部間に開閉装置を設けた連通路を介して連結して加熱円筒部を形成すると共に、該加熱円筒部を囲む加熱炉の外套壁５３と前記円筒体５２間に仕切り壁５３ｅを並列のジクザク状に設けて各円筒体外周面を加熱するための熱風通路５３ｄを連続状に形成して加熱処理部を形成して、該加熱処理部の底部近傍に熱風発生炉５５を連設して、熱風発生炉の熱風吹出し口５５ｃを前記熱風通路の最下端部の熱風供給口に連結して含水有機廃棄物の乾燥、炭化処理する装置本体を構成して、前記加熱処理部の最上段に位置する前記円筒体に被処理物投入口５２ｅを設けると共に、最下段に位置する前記円筒体に処理物排出口５２ｆを設けて、熱処理部前半のやや低温に保つ乾燥処理帯域５２ａと加熱処理部後半の高温で酸欠状態に保つ炭化処理帯域５２ｃとを形成して、含水有機性廃棄物を連続的に乾燥、炭化処理可能とし、且つ、前記各円筒体の一端部にそれぞれ排気口を設けて、切り換え装置を有するダクト５６により各排気口を連結すると共に排煙装置５８及び熱風発生炉５５に連結した含水有機性廃棄物を乾燥及び炭化処理するようにした装置である。
【００１１】
このような構成をした含水有機性廃棄物を乾燥及び炭化処理する装置は、従来の装置に比べて、有機性廃棄物を効率よく乾燥することができると共に、確実に炭化をすることがてきることが確認できた。
しかしながら、上記発明に於いては、移送、攪拌手段に通常のスクリューコンベヤーを用いているので、加熱円筒体を形成するシリンダーのライナー面とスクリューとの間に噛み込みが生じて移送が停止したり、加熱円筒体のライナー面やスクリューを傷めることがあったり、また、排気用のダクトを加熱炉の外側に保温手段を施した状態にして設けても、ダクト内に排気ガス中の成分が凝縮して腐食の原因になったり、ダクトを閉塞する原因になったりすることも分かった。
【００１２】
円筒体やその他の形状をした移送管路からなる移送装置に於いて、管路内に設ける移送手段としては、従来からスクリューコンベヤが一般的に用いられてきたが、スクリューコンベヤを用いた場合には、装置を小型にできて、簡単ではあるが、上記したような欠点もある。
そこで、このような移送装置に於いて、スクリューコンベヤに代わる移送手段を用いたものとして、特開平６−４８５４１号公報に見るように、特殊ブレードをチェーンにより多数連結した移送手段を用いたパイプコンベヤ、あるいは、特開平１０−３８２４１号公報に見るように、バケットをチェーンにより多数連結した移送手段を用いたバケットコンベヤ等があるが、これらの移送手段を用いた移送装置の場合には、従来のスクリューコンベヤ装置のように、移送手段と円筒体管路との間に噛み込みが生じて移送が停止したり、円筒体の内面や移送手段を傷めるようなことがないのが分かった。
【００１３】
そこで、このような移送手段を用いることにより、上記した発明のような構成をした乾燥、炭化装置に於いて、大量の砂が混ざった刈り芝や硬い不燃物が混ざった有機性廃棄物を、加熱円筒体内で攪拌、移送しながら乾燥処理や炭化処理を行っても、前記処理装置の加熱円筒体やスクリューを傷めることがないような構造をした処理装置となすと共に、該処理装置に於いて発生する乾溜ガスその他の気化ガスが排気ガスとして排出される際に、排気用のダクト内で排気ガス中の成分が凝縮してダクトを腐食したり、環境への悪影響をもたらしたりすることがない処理装置を開発することにした。
【００１４】
【発明が解決しようとする課題】
ゴルフ場等の刈り芝やコーヒーや紅茶等の搾り滓、工場から排出される有機性材料等の廃棄物を回収して乾燥及び炭化処理を行うために、環境を害せずに、また、衛生的に効率よく処理を行うことができてると共に、炭化処理された炭化物を砂その他の非炭化物と分離して再利用することができて、且つ、処理装置の加熱円筒体や移送手段を傷めることがなくて、そして、簡単に無理なく乾燥、炭化処理の操作が行えるようにした効率の良い乾燥、炭化処理装置を提供することを目的とする。
【００１５】
【課題を解決するための手段】
刈り芝等の含水有機性廃棄物を乾燥、炭化処理するための加熱処理部を、外熱式の円筒体を複数個横置きにして多段状に重ねた状態に配置して、該円筒体の端部を連結してループ状に連続形成した加熱円筒体を加熱炉内に設けて、前記加熱円筒体の内部には有機性廃棄物の移送に適した特殊なブレードをチェーン等の連結手段により連続状に多数連結した移送手段を循環移動するように設けたパイプコンベヤにより構成して、乾燥、炭化処理装置の本体を形成する。
【００１６】
そして、前記パイプコンベヤの加熱円筒体の間に仕切り体を設けて、該円筒体を外側から加熱するための熱風通路をジクザク状に形成した多段階状の加熱処理部を形成して、前記加熱円筒体の前段部を乾燥処理部となすと共に後段部を炭化処理部となして、前記最上段の円筒体の一端部を加熱炉の外に導出して含水有機性廃棄物を供給する供給装置を連設すると共に、最下段の円筒体の一端部を加熱炉の外に導出して炭化処理部で処理した炭化生成物を冷却して排出する排出装置を設けて、前記加熱炉外に導出した円筒体を連結する部分に前記パイプコンベヤの移送手段を循環移動させる駆動装置を設けて、有機性廃棄物を攪拌、移動させながら乾燥、炭化処理可能とする。
【００１７】
また、前記加熱炉の下部または近傍には、加熱炉内に熱風を供給するための熱風発生炉を設けて、該熱風炉の噴き出し口と加熱炉の下部の熱風供給口とを連結すると共に、多段状に配置した前記加熱円筒体の各水平端部には乾溜ガス等を導出する排気管を連結して設けて、該排気管の一端を熱風発生炉に燃焼用空気を供給する給気装置のノズルに連結して、排気ガスを空気と混合して熱風発生炉で燃焼させるようにして、含水有機性廃棄物を乾燥、炭化処理するのに適した装置を構成する。
【００１８】
【発明の実施の形態】
外側から加熱可能な複数個の円筒体を横置きにして多段状に重ねた状態に配置して、該円筒体の端部を連結してつづら折り状に形成せしめた加熱円筒体２を加熱炉１内に配置して、前記加熱円筒体２の内部には有機性廃棄物を移送するのに適した独特な構造をしたブレード４ａをチェーン等の連結手段４ｂにより連続状に多数連結して形成した移送手段４を外部から循環移動できるように設けてパイプコンベヤ５を形成すると共に、前記加熱円筒体２の最上段の一端部２ａを加熱炉１の外に導出して被処理物を供給する供給口６を設けると共に、最下段の一端部２ｂを加熱炉１の外に導出して既処理物を排出する排出口７を設けて、前記加熱炉１の外に導出した前記円筒体の両端部２ａ，２ｂを連結してループ状をした循環移送管路を形成すると共に、前記移送手段４を循環移動させるための駆動装置８を設けて、乾燥、炭化処理を行う加熱処理装置の本体を構成する。
【００１９】
そして、前記加熱円筒体２の間を仕切る仕切り体１ｂを加熱炉１の外套壁１ａで支持するように設けて、前記円筒体を外側から加熱するための熱風通路をジクザク状に形成した多段階状の加熱処理部を形成して、前記加熱円筒体２の前段部を乾燥処理部となすと共に後段部を炭化処理部となして、前記加熱炉１の底部に加熱処理部に熱風を送風するための熱風発生炉９を設けて、前記加熱円筒体２内を前記移送手段４により攪拌、移動させながら有機性廃棄物を乾燥、炭化処理するように構成する。
【００２０】
上記のように構成した加熱処理装置に於いて、刈り芝やコーヒー滓等の多量の水分を含んだ有機物やその他の有機性廃棄物、生産現場から排出する有機性原材料の屑等からなる被処理物を原料供給装置１０のホッパー１０ｂに投入し、スクリューフィーダー１０ａの作用により前方へ送り出しながら、余分な外気が入り込まないように二重ダンパー１０ｃを開閉して、加熱円筒体２の一端部に設けた供給口６からパイプコンベヤ３内に供給する。
パイプコンベヤ３の加熱円筒部に送り込まれた有機性廃棄物は、該コンベヤ内に設けられた移送手段４のブレード４ａにより加熱円筒体２内で撹拌されながら前方へ移送されて、該円筒体の外側からの加熱により乾燥処理される。
【００２１】
乾燥処理された有機性廃棄物は、乾燥処理部よりも高い温度で外部から加熱されている炭化処理部に移送されて、乾燥処理部と同様に加熱円筒体２内をパイプコンベヤ３の移送手段４により撹拌されながら移送されて、酸欠状態下で加熱されて炭化処理される。
炭化された被処理物は、加熱円筒体２の一端部に設けた排出口７から排出装置１１へ送られて冷却された後、供給時と同様に外気が進入しないように二重ダンパー１１ｃを開閉して、スクリュコンベヤー１１ａ等により排出されて炭化生成物として貯溜槽１２に回収される。
【００２２】
【実施例】
本願発明について、以下に示すようないくつかの最適な実施例に基づいて詳細に説明する。
実施例１．
図１に示したものは、本願発明の含水有機性廃棄物を乾燥、炭化等の加熱処理する装置の一つの実施例を説明するために図示した縦断面図である。
本発明の有機性物質を加熱処理する装置には、パイプコンベヤ３を構成してなる加熱円筒体２の乾燥処理部の一部を加熱炉１の外に導出して形成した供給口６に、刈り芝やコーヒー滓、その他の有機物を含む廃棄物等の被処理物（原材料）を投入する漏斗状をしたホッパー１０ｂを設けると共に被処理物を送り込むスクリューフィーダー７１０ａを内蔵した供給装置１０を、加熱円筒体の炭化処理部の一部を加熱炉１の外に導出して形成した排出口７に、乾燥及び炭化処理した既処理物を冷却する冷却装置１１ｂを設けると共に既処理物を送りだすスクリュコンベヤー１１ａ等を内蔵した排出装置１１をそれぞれ備えている。
【００２３】
前記処理装置は、加熱炉１内に外部加熱式の直円筒体２ａを横置きに複数段重ねた状態で配置して、該円筒体の端部を図６に見るようなＵ字状をした管状継ぎ手２ｂにより連結してつづら折り状の循環移送路に形成して、該円筒体の内部にブレード等からなる受け体４ａをチェーンリンク４ｂ等により多数連結してなる可撓性の移送手段４を設けてパイプコンベヤ３を形成した加熱円筒体２と、該加熱円筒体を囲むように外套壁１ａを形成した加熱炉１と、該加熱炉に熱風を供給する熱風発生炉５とにより構成されている。
【００２４】
また、前記加熱炉１内に配置されたパイプコンベヤ３を形成する前記円筒体２の間には、仕切り壁１ｂが外套壁１ａで支持されるようにして設けられて、前記熱風発生炉５からの熱風により加熱円筒体２を加熱するための熱風路１ｃがジクザグ状に形成されて、熱風による外部加熱式の熱処理部が構成されると共に、前記パイプコンベヤ３内に設けた移送手段４は、炉外に設けたモーター等により駆動されるスプロケット等８ａを備えた駆動装置８により循環駆動が可能なように張設されて循環移送路を構成している。
【００２５】
このようにして駆動される移送手段４は、図５にパイプコンベヤ３を拡大して示したように、移送管路３ｂ内に循環駆動するように張設されていて、該移送手段のチェーンリンク４ｂ等は常に管路３ｂの下面に接するようにして駆動されるので、被処理物は図に見るようにブレード等の受け体４ａの板状部分により排出方向へ引き寄せられながら移送される。
このようにして移送される過程は、図４に部分的に示すように、パイプコンベヤ３の湾曲した部分ではチェーンリンク４ｂ等の移送部材が管路３ｂの内周面に接するようにして通過するが、湾曲部を過ぎるとチェーンリンク４ｂ等は再び管路の下面に接して駆動されるので、被処理物は管路内に停溜することはない。
【００２６】
そして、前記加熱炉１下部に設けた熱風路の熱風取入れ口１ｄには熱風発生炉５の熱風噴出し口５ｄが連結され、また、前記加熱炉１上部の排気口１ｆには煙突等の排煙装置１２が連結して設けられている。
このようにして、前記加熱円筒体２と移送手段４とで循環移送を形成してなるパイプコンベヤ３は、熱風発生炉５に近い下段部分が高温で酸欠状態に保たれる炭化処理帯域を形成して、排気口１ｆに近い上段部分がやや低温に保たれる乾燥処理帯域を形成して、本願発明の有機性廃棄物を加熱処理する装置本体部が構成されている。
【００２７】
即ち、前記パイプコンベヤ３を用いた加熱処理部は、熱風発生炉５の熱風噴き出し口５ｄを通して加熱炉下部の熱風路１ｄに供給される熱風により外側から間接的に加熱される構造になっているので、熱風は加熱円筒内の被処理物の移動方向とは向流状態に送られるから、下流の加熱処理部は高温の熱風により熱せられるが、上方の加熱処理部２ａは温度下がってやや低温になった熱風により熱せられるので、上方の加熱処理部は乾燥処理に適した温度帯域に保たれるが、下方の加熱処理部は炭化処理に適した温度帯域に保たれることになる。
【００２８】
また、前記供給装置１０の先端開口部１０ｃは、モーターＭ等により自動開閉する二重ダンパー１０ｄを備えた供給調整装置１０を介して、加熱炉１内の最上部のパイプコンベヤ３の加熱処理側へ被処理物を供給する投入口６に連結されており、また、前記加熱炉１内の最下部のパイプコンベヤ３の炭化処理部の一端に設けた排出口２ｆには、加熱処理した物質を排出するための冷却装置１１ｂを設けた排出装置１１が連結されて、外気の進入を防止するようにモーターＭなどにより開閉する二重ダンパー１１ｄが設けられていて、パイプコンベヤ３からなる加熱処理部に余分な空気が入らないように最適な状態に調節されるようになっている。
【００２９】
更に、前記パイプコンベヤ３の加熱円筒部２は、円筒体の熱膨張率を吸収できるように水平部で滑り受け２ｃにより伸縮可能に支持されると共に、該水平部の各先端には、乾燥処理帯域及び炭化処理帯域で発生したガスを熱風炉５に導く排気ダクト２ｅが設けられていて、該ダクトの排出端は熱風発生炉５へ燃焼空気を供給するために設けた給気装置５ｂのノズル部５ｃに連結されてベンチュリー効果を利用して吸引排気されるようになっている。
【００３０】
上記のような構成にした本発明の有機性廃棄物の加熱処理装置に於いて、刈り芝やコーヒー滓、その他有機材料を含む含水廃棄物等の被処理物は供給装置１０のホッパー１０ｂに投入されて、スクリューフィーダー１０ａの作用により前方へ送り出されて、モーターＭの作動により外気を取り込まないように供給調整装置１０ｅの二重ダンパー１０ｄを開閉して、パイプコンベヤ３の加熱処理部の一端部を炉外に導出した部分に設けた供給口６に供給される。
【００３１】
このようにしてパイプコンベヤ３に供給された含水有機性廃棄物は、パイプコンベヤ３の搬送手段４により円筒体２内を撹拌されながら前方へ移送されつつ、外部からの加熱される前記加熱円筒部の前段部分の乾燥処理部で加熱乾燥処理され、続いて乾燥された有機性廃棄物は、パイプコンベヤ３により撹拌しつつ前方へ順次送られて、前記加熱円筒部の後段部分の炭化処理部で更に高い温度で外側から加熱されて、酸欠状態の下で蒸し焼きにして炭化処理される。
【００３２】
このようにして炭化処理された既処理物は、パイプコンベヤ３の炭化処理部の一端部を炉外に導出した部分に設けた冷却装置１２で冷却するか、あるいはそのまま送って排出口７から排出装置１１へ送って冷却された後、モーターＭの作動により二重ダンパー１１ｄを開閉して、外気を取り込まないようにしてスクリュコンベヤー１１ａ等により排出されて、炭化物として貯溜槽に回収される。
また、上記したようにして乾燥処理や炭化処理を行う途中に於いて発生する被処理物に含まれていた気化成分や分解ガス、乾留ガス、その他の種々のガスは、加熱円筒部の水平端の開口部から排気ダクト２ｅを通じて燃焼用空気の供給装置５ｂのノズル部５ｃへ吸引されて、空気に混合されて燃焼用空気を温めてから熱風発生炉５内に送り込まれて燃焼されて、無臭、無色の無害な気体へ完全に分解されるので、排気ガスがダクトまたは管体２ｅ内で凝縮することもない。
【００３３】
実施例２．
図２に示したものは、本願発明の別のもう一つの実施例を説明するために図示した縦断面図である。
実施例１と同じように、含水有機性廃棄物等に乾燥や炭化処理等の加熱処理を行う加熱円筒部にパイプコンベヤを用いた加熱処理装置であって、外部加熱式の直円筒体２ａを横置きに複数段重ねた状態にして、該円筒体の端部をＵ字状の管状継ぎ手２ｂにより連結して、つづら折り状をした循環搬送路を形成して、該搬送路内にリンクチェーン４ｂによりブレード等の受け体４ａを連結して形成した可撓性の移送手段４を設けたパイプコンベヤ３により加熱円筒部２を形成して、前記管状継ぎ手２ｂにより連結した部分を炉壁外に露出した状態にして外套壁３で加熱円筒部２を囲んで加熱炉１を形成すると共に、該加熱炉の底部に熱風を供給する熱風発生炉５を連結して含水有機性廃棄物を加熱処理する装置の本体を構成する。
【００３４】
そして、前記加熱処理する装置は、実施例１と同様に、加熱炉１内に配置されたパイプコンベヤ３の一部を形成する前記円筒体２の間には、仕切り壁１ｂを炉壁１ａ面で支持するように設けて熱風により加熱するための熱風路１ｃを形成して、該熱風路の熱風取入れ口１ｄに前記熱風発生炉５の熱風噴出し口５ｄを連結すると共に、前記加熱炉１上部の排気口１ｆに煙突等の排煙装置を連結して、更に、前記パイプコンベヤ３の循環移送路内に設けた移送手段４を炉外に設置した駆動装置８のスプロケット等８ａにより循環移送が可能に張設して、熱風を用いた外部加熱式の熱処理部を形成してなる有機性廃棄物を乾燥、炭化する加熱処理装置を構成したものである。
【００３５】
このように構成したパイプコンベヤ３に於ける加熱処理部では、熱風発生炉５からの熱風がパイプコンベヤの循環移送路内を移動する被処理物の移動方向とは向流状態で送られて、下流の熱風発生炉５に近い加熱処理部では高温で酸欠状態に熱せられる炭化処理帯域となり、上流の排気口３ｆに近い加熱処理部ではやや低温となった熱風により熱せられる乾燥処理帯域となった含水有機性廃棄物を乾燥、炭化処理するのに適した加熱処理装置が形成される。
【００３６】
そして、上記のように構成した加熱処装置に於いては、パイプコンベヤ３を形成する加熱円筒体２の連結部であるＵ字状をした管状継ぎ手部分２ｂが、加熱炉１の外套壁１ａの外側で冷たい外気温に曝されているので、当該部分を通過する被処理物は冷やされて温度が低下する恐れがある。
そこで、本発明に於いては、図２に示すように、加熱炉外にある湾曲した部分２ｂが処理温度以下に低下しないようにするために、図７に示すようなエルボ部材２Ｅ，２Ｆを用いて連結した管状継ぎ手部分２ｂを囲繞するように抵抗加熱、誘導加熱、マイクロ波加熱等の加熱手段３ａを設けて、管路内を通過する被処理物を外側から電気的に保温しつつ次の処理域へ移送するようにしてある。
【００３７】
また、加熱処理を行う途中で発生した分解ガスや乾留ガス等は、加熱円筒部２の炉内水平端部に設けた開口部２ｄに連結した排気ダクト２ｅを通じて燃焼用空気の供給装置５ｂのノズル部５ｃへ送られ、ベンチュリー効果を利用して燃焼用空気に混合されて熱風発生炉５内で燃焼分解される。
そして、上記した実施例に於いては、加熱炉内に配置した直円筒の端部を図７に示すようなエルボ部材２Ｅ，２Ｆを用いてフランジ結合により連結して、循環移送路となしたパイプコンベヤ３を形成したので、チェーンなどのによる磨耗が起こり易い湾曲部分やその他の部分に不具合等が発生した場合には、該エルボ部材のフランジ部分２ｅ，２ｆのボルトをはずことにより容易に補修することがてきるし、また、炉外に露出した部分に保温を施す場合にも、図に示した電気的な加熱手段３ａ以外の保温手段を容易に施すことができる。
【００３８】
実施例３．
図３に示したものは、本願発明の他の実施例について説明するために図示した縦断面図である。
実施例１と同じように、有機性廃棄物を乾燥、炭化等の加熱処理するための加熱円筒部にパイプコンベヤを用いた加熱処理装置に於いて、前記加熱円筒部２を、パイプコンベヤ３が上下方向に螺旋状に巻回せしめられた加熱循環管路により形成すると共に、該循環管路内に被加熱処理物を移送、加熱処理するのに適したチェーンその他の牽引索体４ｃによりブレード等４ｂを多数連結した可撓性の移送手段４を循環移動させるように設けて、前記螺旋状の加熱円筒部２を外套壁３で囲んで加熱炉１を形成すると共に、該加熱炉の底部に熱風を供給する熱風発生炉５を連結して有機性廃棄物を加熱処理する装置の本体を構成する。
【００３９】
上記のようにして、前記加熱炉１内にパイプコンベヤ３の一部を螺旋状に形成した加熱円筒部２の間には、実施例１の場合と同様に、仕切り壁１ｂが炉壁１ａ面で支持されて設けられているが、前記仕切り壁は加熱円筒部の構造に合わせてやや傾斜して設けられて、ジグザグ状の熱風路１ｃが形成されており、該熱風路の熱風取入れ口１ｄには前記熱風発生炉５の熱風噴出し口５ｄが連結され、また、前記加熱炉１上部の排気口１ｆに煙突等の排煙装置が連結されている。
【００４０】
そして、前記加熱炉１の外側には、実施例１と同様に、パイプコンベヤ３の移送手段４を循環駆動するためのスプロケット等を備えた駆動装置８と、被処理物を供給するための二重ダンパー等の開閉装置を備えた供給装置１０と、加熱処理した物質を排出するための冷却装置や二重ダンパー等を備えた排出装置１１とが設けられて、含水有機性廃棄物の乾燥、炭化処理する装置が構成されている。
【００４１】
更に、前記パイプコンベヤ３の一部を構成した加熱円筒部２は、加熱による膨張を吸収するように滑り受け体２ｃで支持されると共に、該加熱円筒部の一端には加熱処理中に発生したガスを吸引して、熱風炉発生５へ導く排気ダクト６が設けられていて、該ダクトの排出端は熱風炉へ燃焼空気を供給するために設けた給気装置５ｂのノズル部５ｃに連結されてベンチュリー効果を利用して燃焼されるようになっている。
【００４２】
そして、上記のような構成をした乾燥、炭化する各処理装置に於いて、刈り芝やコーヒー滓、その他の有機物を含む廃棄物が供給装置１０のホッパー１０ｂに投入されると、供給調整装置１０ｅの二重ダンパー１０ｄが外気を取り込まないように開閉して、供給口６からパイプコンベヤ３の加熱処理部に供給され、供給された有機性廃棄物は、移送手段４により加熱円筒２内を撹拌されながら上方から下方へと移送されて、外部から加熱される前記加熱円筒部の前段部分の乾燥処理部で加熱乾燥処理される。
【００４３】
このようにして乾燥された有機性廃棄物は、続けて移送手段４により前記加熱円筒部の後段部分の炭化処理部に送られて、更に高い温度に加熱されて酸欠状態の下で蒸し焼きにして炭化処理された後、炉外に設けられたパイプコンベヤ３の途中に設けた冷却装置１２により冷却するか、あるいはそのまま排出口７から排出装置１１へ送られて、外気を取り込まないように二重ダンパー８ｄを開閉して生成物として貯溜タンク等に回収される。
【００４４】
この実施例に於いては、パイプコンベヤ３を螺旋状に巻回せしめた循環管路を加熱炉内に配置して加熱処理部を形成したが、このようにパイプコンベヤを螺旋状に巻回した加熱循環路に形成すると、加熱領域を長くするのが容易ではあるが、パイプコンベヤを上下方向ないし斜め方向にしか配置することができない。
それに比べて、前記した実施例のようにパイプコンベヤを直線状の管とＵ字状のエルボ形をした管状継ぎ手とで形成したものは、上下方向のみならず、斜め方向、水平方向等の自由な方向にジクザグ状に重ねた状態に加熱循環路に形成することができる。
【００４５】
上記で述べたようにして乾燥及び炭化処理を行うようにした本願発明は、被処理物が加熱円筒部を形成するパイプコンベヤ内を攪拌、移送されると共に、その移送手段として独特のブレードやバケットをチェーン等により連結した可撓性を有する搬送体を用いたパイプコンベヤにより乾燥、炭化処理装置の本体を構成しているので、被処理物が多量に送り込まれたり、被処理物に硬い異物が混入していても、ブレードと円筒体との間に噛み込みを生じて停止することもない。
一般的には、ブレードの受け体部分の面積を移送管路の断面積の６０〜８０％にするのが好ましい条件であり、また、図６に示したような構造をしたブレード４ｃを用いて移送手段４を構成すると、被処理物の攪拌や発生したガスの吸引等の効率を良くすることができることも分かった。
【００４６】
更に、本願の発明は、被処理物の含水量や砂等の不純物の含有量に応じて各調整弁等を操作することにより、加熱円筒内の水蒸気や炭酸ガス等の量、その他を調節できて、加熱円筒内を目的に合った最適な条件に保つことができるので、炭化せずに乾燥処理装置のみとしても使用することが可能である。
例えば、上記装置に於いて、ブレードなどの搬送体の移動速度を上げて、被処理物の各加熱筒内に於ける滞留時間を短くすることにより、被処理物が炭化しないように制御すれば、本発明は乾燥装置として使用することができて、また、熱風発生炉の温度を調節して下方の炭化処理部の温度を炭化温度よりも低く保ことにより、効率のよい乾燥装置として使用することも可能である。
【００４７】
そして、本発明に於いては、パイプコンベヤを蛇行せしめて形成した循環搬送路の湾曲部分は、チェーン等の牽引索が摩擦接触して移送されるので、他の部分に比べて磨耗し易い部分となるので、耐磨耗材料を用いたＵ字状をした別部材で形成することにより、補修や保守点検が容易に行うことができる。
【００４８】
【発明の効果】
本願発明のパイプコンベヤを用いた有機性廃棄物を乾燥、炭化等の加熱処理する装置は、従来から用いられているスクリューコンベヤを用いた装置に比べて、移送量を大きく取れるので、比較的低速で多くの量の被処理物を安定して移送することができ、円筒体ケーシング内での残りがなくて、また、移送操作も静かに行うことができて、且つ、円筒体の磨耗を低く抑えることができる。
また、パイプコンベヤからなる循環搬送路は、気密性を確保するのが容易であるから炭化処理を安全に行うことができて、加熱処理する工程路を長くしたり、短くすることも容易に行うことができる。
更に、本願発明は、被処理物を加熱して乾燥、炭化処理する際に加熱筒内で発生したガスを、熱風発生炉へ送る燃焼用空気に混ぜることにより冷たい外気を温めることにより、熱風発生炉の温度を下げないようにしているので、エネルギーの消費量を低く抑えることが可能である。
【図面の簡単な説明】
【図１】本願発明の第１実施例を示す縦断面図である。
【図２】本願発明の別の実施例を示す縦断面図である。
【図３】本願発明の他の実施例を示す縦断面図である。
【図４】本願発明に於ける管路内の移送手段の状態を示す断面図である。
【図５】本願発明の管路内での移送状態を示す部分断面図である。
【図６】本願発明の他のブレードを用いた状態を示す断面図である。
【図７】本願発明の連結部用いた湾曲した管状継ぎ手を示す断面図である。
【図８】本願発明の先行例を示した断面図である。
【符号の説明】
１．加熱炉
２．加熱円筒部
３．パイプコンベヤ
４．移送手段
５．熱風発生炉
６．供給口
７．排出口
８．移送駆動装置
１０．供給装置
１１．排出装置[0001]
BACKGROUND OF THE INVENTION
The invention of the present application relates to a method and apparatus for drying and carbonizing organic matter, and more particularly, to a treatment method and apparatus suitable for drying and carbonizing organic waste containing a large amount of water, such as stables. Processing organic waste such as litter, poultry manure, threshed rice husks, coffee and tea squeezed potatoes, vegetable waste and other cocoons, cut grass for golf courses, and other industrial wastes made of organic materials The present invention relates to a drying and carbonization method and a processing apparatus suitable for this.
[0002]
[Prior art]
As a method for treating plant waste, the method of incinerating naturally dried products, including open burning, has been widely used in the past, but it is simply incinerated as the living environment and social environment change in recent years. This method cannot be adopted, and in particular, those with rotting odors and other bad odors and smoke and other exhaust gases cannot be allowed unless they are properly treated.
[0003]
As one of the solutions, as shown in Japanese Patent Application Laid-Open No. 50-130803, a processing method for carbonizing and incinerating vegetables and waste wood is proposed. In the equipment provided separately, wood chips that are easy to burn are put into the combustion chamber, and the waste heat of the vegetables and vegetation wastes put into the dry distillation chamber is carbonized. It is bad and may cause bad odor.
[0004]
As another solution, as shown in Japanese Patent Laid-Open No. Sho 52-21167, after pulverizing and separating foreign matter such as straw and weeds, further refined by a juicer or a pulverizer and then primary dried There is a method of granulating, secondary drying, separating the generated gas, processing it into organic fertilizer or feed, and burning the gas, but this requires a lot of work. In addition, it is not very suitable for drying and carbonizing treatments such as mowing lawn and coffee straw.
[0005]
In order to apply the above-mentioned conventional technology to the litter used in cowsheds and stables, husks after threshing, mowing lawn containing sand, squeezed rice cake containing moisture and coffee, and tofu, Too many or flame retardant, can not be treated as you want, and if you try to treat after drying in the sun, it will rot and give off a bad odor and cause trouble.
In particular, weeds and a considerable amount of sand are mixed in the grass cut off at the golf course. Using the conventional incinerator as described above, the raw grass just after cutting is completely burned. It was impossible to cause carbonization.
[0006]
Therefore, there is a device as disclosed in JP-A-6-122879 as an apparatus for carbonizing organic substances containing a large amount of moisture such as cut grass and rice husks, which is a heat radiation source having a burner on the ceiling surface. In addition, a pair of paddles that transfer mowing turf and the like while stirring are placed in a cylindrical tunnel-type drying furnace in which the inside of the furnace is maintained in an oxygen-poor state, and moisture is contained from the hopper. An inlet for feeding cut grass and an exhaust port for discharging moisture evaporated from the grass are provided at the front and rear ends of the drying furnace, and at a higher temperature than the drying furnace through an overflow chute provided at the tip. After connecting the end of the carbonization furnace with a heat radiation source to be maintained on the ceiling surface, supplying the turf and the like dried in the drying furnace into the carbonization furnace, and carbonizing while stirring and transferring with a pair of paddles , Formed at the end opposite to the chute In which it was taken out of the peat from the open-close valve provided in the outlet.
[0007]
However, in the above invention, since it is a direct heating type in which a burner as a heat radiation source is provided on the ceiling surface of the drying furnace and carbonization furnace, the temperature and oxygen amount in each furnace are set to the respective optimum temperature ranges. It is accompanied by difficult operations that must be controlled, and the cut grass of a golf course is cut into the concave part of the lawn to remove the damaged parts such as the unevenness of the lawn after cutting the extended lawn. Since sand is added and leveled, it contains a large amount of sand, so it is desirable to separate and reuse the carbide and sand, but these points are not considered.
[0008]
Therefore, by improving these conventional techniques, an external heating type carbonization apparatus suitable for processing sand-containing cut grass and coffee pods containing a large amount of water is disclosed in Japanese Patent Application Laid-Open No. 8-104880. is suggesting.
The invention provides a screw conveyor inside, or a cylindrical heating inner cylinder provided with a spiral groove on the inner surface and a heating path so as to surround the inner cylinder to form a mantle part, To heat the inner cylinder part from the outside and indirectly dry and carbonize it to form an external heating type carbonization furnace, and to receive the grass mixed with sand cut off at one end of the inner heating cylinder A hopper and a screw feeder are provided at the lower part of the hopper, and a cooling separation tower for cooling and separating the carbonized product of the turf treated in the carbonization furnace and sand is provided at the other end, and the outer part of the carbonization furnace A carbonization apparatus is configured by connecting a hot air generating furnace for supplying hot air to the furnace.
[0009]
However, in the above invention, the firing furnace is composed of a single heating cylinder, so there is a limit to the amount of firing treatment. Alternatively, it is necessary to make the heating cylinder long or to use a rotary kiln type.
As the device becomes larger in size, a large space is required to install the device, and it takes time to heat the device to a predetermined temperature. At the same time, the structure for keeping the device airtight becomes complicated, and the maintenance cost is increased. Therefore, the applicant has proposed an invention described in Japanese Patent Application Laid-Open No. 9-67580 as a prior art that further improves the above-described invention.
[0010]
In the above invention, as shown in FIG. 8, a plurality of external heating type cylinders (heating cylinders) 52 formed by supporting both ends of the transfer / stirring member 54 provided in the horizontal direction in the heating furnace 51 are provided. The heating cylinder outer wall 53 surrounding the heating cylinder is formed by stacking in a multi-stage manner and forming a heating cylinder by connecting via a communication path provided with an opening / closing device between the ends of the cylinder. A partition wall 53e is provided in a parallel zigzag shape between the cylindrical body 52 and a hot air passage 53d for heating the outer peripheral surface of each cylindrical body is formed continuously to form a heat treatment section, and the heat treatment section An apparatus main body for drying and carbonizing the water-containing organic waste by connecting a hot air generating furnace 55 in the vicinity of the bottom of the hot air generator and connecting a hot air outlet 55c of the hot air generating furnace to a hot air supply port at the lowermost end of the hot air passage. To be processed in the cylindrical body located at the uppermost stage of the heat treatment unit In addition to providing the inlet 52e and providing the processed product discharge port 52f in the cylindrical body located at the lowermost stage, the carbonization is maintained in the oxygen-deficient state at a high temperature in the drying treatment zone 52a and the latter half of the heat treatment portion which are kept at a slightly low temperature in the first half of the heat treatment portion The treatment zone 52c is formed so that the water-containing organic waste can be continuously dried and carbonized, and an exhaust port is provided at one end of each cylindrical body. This is an apparatus for drying and carbonizing the water-containing organic waste connected to the smoke exhaust device 58 and the hot air generator 55 while connecting the exhaust port.
[0011]
The apparatus for drying and carbonizing the water-containing organic waste having such a configuration can efficiently dry the organic waste and carbonize reliably as compared with the conventional apparatus. I was able to confirm.
However, in the above invention, since a normal screw conveyor is used as the transfer and stirring means, the transfer is stopped due to the biting between the liner surface of the cylinder forming the heated cylinder and the screw. Even if the heating cylinder liner surface and screw are damaged, or the exhaust duct is provided with heat insulation on the outside of the heating furnace, the components in the exhaust gas are condensed in the duct. It was also found that this could cause corrosion or block the duct.
[0012]
In a transfer device comprising a cylindrical body or other shaped transfer pipe, a screw conveyor has been generally used as a transfer means provided in the pipe, but in the case of using a screw conveyor. Although the apparatus can be reduced in size and is simple, it also has the drawbacks described above.
Therefore, in such a transfer device, a pipe conveyor using a transfer means in which a number of special blades are connected by a chain as shown in Japanese Patent Laid-Open No. 6-48541, as a transfer means replacing the screw conveyor. Or, as seen in Japanese Patent Laid-Open No. 10-38241, there is a bucket conveyor using transfer means in which a large number of buckets are connected by a chain, but in the case of a transfer device using these transfer means, It has been found that there is no occurrence of biting between the transfer means and the cylindrical pipe line to stop the transfer or damage the inner surface of the cylindrical body or the transfer means as in the screw conveyor device.
[0013]
Therefore, by using such a transfer means, in the drying and carbonization apparatus configured as described above, mowed grass mixed with a large amount of sand and organic waste mixed with hard incombustibles, In the processing apparatus, the processing apparatus has a structure that does not damage the heating cylinder or screw of the processing apparatus even if the drying process or carbonization process is performed while stirring and transferring in the heating cylinder. When the generated dry gas or other vaporized gas is discharged as exhaust gas, the components in the exhaust gas do not condense in the exhaust duct and corrode the duct or cause adverse effects on the environment. Decided to develop processing equipment.
[0014]
[Problems to be solved by the invention]
Harvesting the environment without sacrificing the environment to recover waste such as cut grass such as golf courses, squeezed coffee such as coffee and tea, and organic materials discharged from the factory, and drying and carbonizing. Efficient and efficient treatment, carbonized carbide can be separated from sand and other non-carbonized materials and reused, and the heating cylinder and transfer means of the processing equipment are damaged. Therefore, an object of the present invention is to provide an efficient drying and carbonization processing apparatus that can easily and easily perform drying and carbonization processing.
[0015]
[Means for Solving the Problems]
A heat treatment unit for drying and carbonizing water-containing organic waste such as cut grass is arranged in a state where a plurality of externally heated cylinders are horizontally placed and stacked in a multi-stage shape. A heating cylinder formed continuously in a loop shape by connecting ends is provided in a heating furnace, and a special blade suitable for transferring organic waste is provided inside the heating cylinder by a connecting means such as a chain. The main body of the drying and carbonization apparatus is formed by a pipe conveyor provided so as to circulate and move a plurality of transfer means connected in series.
[0016]
Then, a partition body is provided between the heating cylinders of the pipe conveyor, and a multistage heating processing unit is formed in which hot air passages for heating the cylinders from outside are formed in a zigzag shape. Supply device for supplying water-containing organic waste by leading one end portion of the uppermost cylindrical body out of the heating furnace with the front stage portion of the cylindrical body serving as a drying processing section and the rear stage section serving as a carbonization processing section And a discharge device that cools and discharges the carbonized product treated in the carbonization processing section by leading one end of the lowermost cylindrical body out of the heating furnace and leading out of the heating furnace. A driving device that circulates and moves the transfer means of the pipe conveyor is provided at a portion where the cylindrical bodies are connected, so that the organic waste can be dried and carbonized while being stirred and moved.
[0017]
Further, in the lower part or the vicinity of the heating furnace, a hot air generating furnace for supplying hot air into the heating furnace is provided, and the outlet of the hot air furnace and the hot air supply port at the lower part of the heating furnace are connected, An air supply device in which an exhaust pipe for deriving dry distillation gas or the like is connected to each horizontal end portion of the heating cylindrical body arranged in a multi-stage shape, and one end of the exhaust pipe is supplied with combustion air to a hot air generator In this way, the exhaust gas is mixed with air and burned in a hot air generating furnace to constitute a device suitable for drying and carbonizing the water-containing organic waste.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
A heating cylinder 1 in which a plurality of cylindrical bodies that can be heated from the outside are arranged in a horizontal manner and stacked in a multi-stage shape, and the ends of the cylindrical bodies are connected to form a zigzag shape. A plurality of blades 4a having a unique structure suitable for transporting organic waste are continuously connected to the inside of the heating cylindrical body 2 by connecting means 4b such as a chain. A supply means 4 is provided so as to be able to circulate from the outside to form a pipe conveyor 5, and the uppermost end portion 2 a of the heating cylindrical body 2 is led out of the heating furnace 1 to supply an object to be processed. Both ends of the cylindrical body led out of the heating furnace 1 are provided by providing the outlet 6 and providing the discharge port 7 through which the lowermost one end 2b is led out of the heating furnace 1 and discharges the processed material. 2a and 2b are connected to form a loop-shaped circulation transfer line Together, said transfer means 4 is provided a driving device 8 for circulating movement, dried, constituting the main body of the heat treatment apparatus for performing carbonization.
[0019]
And the multi-stage which provided the partition body 1b which partitions off between the said heating cylinders 2 so that it might be supported by the mantle wall 1a of the heating furnace 1, and formed the hot-air channel | path for heating the said cylinder body from the outer side. A heat treatment part is formed, and the front part of the heating cylindrical body 2 is used as a drying part and the rear part is a carbonization part, and hot air is blown to the heat treatment part at the bottom of the heating furnace 1. A hot-air generating furnace 9 is provided for drying and carbonizing the organic waste while stirring and moving the heating cylinder 2 by the transfer means 4.
[0020]
In the heat treatment apparatus configured as described above, to-be-processed consisting of organic matter containing a large amount of moisture such as cut grass and coffee straw, other organic waste, and organic raw material waste discharged from the production site. The material is put into the hopper 10b of the raw material supply device 10 and sent to the front by the action of the screw feeder 10a, and the double damper 10c is opened and closed so as to prevent excessive outside air from entering, and provided at one end of the heating cylinder 2 Then, it is supplied into the pipe conveyor 3 from the supply port 6.
The organic waste fed into the heating cylinder of the pipe conveyor 3 is transferred forward while being stirred in the heating cylinder 2 by the blade 4a of the transfer means 4 provided in the conveyor. It is dried by heating from the outside.
[0021]
The dried organic waste is transferred to the carbonization processing unit heated from the outside at a higher temperature than the drying processing unit, and the transfer means of the pipe conveyor 3 is moved in the heating cylinder 2 in the same manner as the drying processing unit. 4 while being stirred and heated in an oxygen deficient state to be carbonized.
After the carbonized workpiece is cooled by being sent to the discharge device 11 from the discharge port 7 provided at one end of the heated cylindrical body 2, the double damper 11c is prevented from entering outside air as in the supply. It opens and closes, is discharged by the screw conveyor 11a, etc., and is collected in the storage tank 12 as a carbonized product.
[0022]
【Example】
The present invention will be described in detail on the basis of several optimum embodiments as described below.
Example 1.
FIG. 1 is a longitudinal sectional view for explaining one embodiment of an apparatus for heat-treating water-containing organic waste of the present invention such as drying and carbonization.
In the apparatus for heat-treating the organic substance of the present invention, a supply port 6 formed by leading a part of the drying processing part of the heating cylindrical body 2 constituting the pipe conveyor 3 out of the heating furnace 1, A feeding device 10 provided with a funnel-shaped hopper 10b for feeding a material to be treated (raw materials) such as cut grass, coffee grinder, and other wastes containing organic materials, and a built-in screw feeder 710a for feeding the material to be treated is heated. A screw conveyor that cools the dried and carbonized processed product at a discharge port 7 formed by leading a part of the carbonized portion of the cylindrical body out of the heating furnace 1 and sends out the processed product. Each is provided with a discharge device 11 containing 11a and the like.
[0023]
The processing apparatus is arranged in the heating furnace 1 in a state where a plurality of externally heated straight cylindrical bodies 2a are horizontally stacked and the end of the cylindrical body is U-shaped as seen in FIG. A flexible transfer means 4 is formed by connecting by a tubular joint 2b to form a circularly-circulated circulation transfer path, and connecting a number of receivers 4a made of blades or the like inside the cylinder by chain links 4b or the like. A heating cylinder 2 provided to form a pipe conveyor 3, a heating furnace 1 having an outer wall 1a formed so as to surround the heating cylinder, and a hot air generating furnace 5 for supplying hot air to the heating furnace. Yes.
[0024]
A partition wall 1b is provided between the cylindrical bodies 2 forming the pipe conveyor 3 arranged in the heating furnace 1 so as to be supported by the outer wall 1a. The hot air passage 1c for heating the heating cylindrical body 2 with the hot air is formed in a zigzag shape, and an external heating type heat treatment section by the hot air is configured, and the transfer means 4 provided in the pipe conveyor 3 includes: A circulating transfer path is configured by being stretched so as to be circulated by a drive device 8 having a sprocket 8a driven by a motor or the like provided outside the furnace.
[0025]
The transfer means 4 driven in this manner is stretched so as to circulate in the transfer pipe 3b as shown in the enlarged view of the pipe conveyor 3 in FIG. Since 4b and the like are always driven so as to be in contact with the lower surface of the pipe 3b, the object to be processed is transferred while being drawn in the discharge direction by the plate-like portion of the receiving body 4a such as a blade as shown in the figure.
In the process of being transferred in this way, as shown in part in FIG. 4, in the curved part of the pipe conveyor 3, the transfer member such as the chain link 4b passes so as to be in contact with the inner peripheral surface of the pipe line 3b. However, since the chain link 4b and the like are again driven in contact with the lower surface of the pipeline after passing the curved portion, the object to be processed does not stay in the pipeline.
[0026]
A hot air outlet 5d of a hot air generating furnace 5 is connected to a hot air inlet 1d of a hot air passage provided in the lower part of the heating furnace 1, and a discharge of a chimney or the like is connected to an exhaust port 1f of the upper part of the heating furnace 1. A smoke device 12 is connected and provided.
In this way, the pipe conveyor 3 formed by circulating transfer between the heating cylindrical body 2 and the transfer means 4 has a carbonization treatment zone in which the lower part close to the hot air generating furnace 5 is maintained in an oxygen-deficient state at a high temperature. The apparatus main body part which heat-processes the organic waste of this invention is formed by forming the drying process zone in which the upper stage part near the exhaust port 1f is kept at a slightly low temperature.
[0027]
That is, the heat treatment unit using the pipe conveyor 3 is structured to be indirectly heated from the outside by hot air supplied to the hot air passage 1d at the lower part of the heating furnace through the hot air outlet 5d of the hot air generating furnace 5. Therefore, since the hot air is sent in a counter-current state with respect to the moving direction of the object to be processed in the heating cylinder, the downstream heat treatment unit is heated by the high temperature hot air, but the upper heat treatment unit 2a is slightly cooled down. Therefore, the upper heat treatment part is kept in a temperature band suitable for the drying process, while the lower heat treatment part is kept in a temperature band suitable for the carbonization process.
[0028]
Further, the tip opening 10c of the supply device 10 is connected to the heat treatment side of the uppermost pipe conveyor 3 in the heating furnace 1 through a supply adjustment device 10 provided with a double damper 10d that is automatically opened and closed by a motor M or the like. A discharge port 2f provided at one end of the carbonization portion of the lowermost pipe conveyor 3 in the heating furnace 1 is connected to a charging port 6 for supplying an object to be processed. A discharge device 11 provided with a cooling device 11b for discharging is connected, and a double damper 11d that is opened and closed by a motor M or the like is provided so as to prevent the outside air from entering, and a heat treatment unit comprising a pipe conveyor 3 It is adjusted to the optimum state so that excess air does not enter.
[0029]
Further, the heating cylindrical portion 2 of the pipe conveyor 3 is supported by a slide receiver 2c in a horizontal portion so as to be able to absorb the coefficient of thermal expansion of the cylindrical body, and is also subjected to a drying treatment at each tip of the horizontal portion. An exhaust duct 2e for guiding the gas generated in the zone and the carbonization zone to the hot air furnace 5 is provided, and the discharge end of the duct is a nozzle of an air supply device 5b provided for supplying combustion air to the hot air generator 5 It is connected to the portion 5c and is sucked and exhausted using the venturi effect.
[0030]
In the organic waste heat treatment apparatus according to the present invention having the above-described configuration, an object to be treated such as moist lawn, coffee straw, and other water-containing waste containing organic materials is input to the hopper 10b of the supply apparatus 10. One end portion of the heat treatment unit of the pipe conveyor 3 is opened and closed by the action of the screw feeder 10a so as to open and close the double damper 10d of the supply adjusting device 10e so that the outside air is not taken in by the operation of the motor M. Is supplied to a supply port 6 provided in a portion led out of the furnace.
[0031]
In this way, the water-containing organic waste supplied to the pipe conveyor 3 is transported forward while being stirred in the cylindrical body 2 by the conveying means 4 of the pipe conveyor 3, and is heated from the outside. The organic waste that has been heat-dried in the drying section in the former stage and subsequently dried is sequentially fed forward while being agitated by the pipe conveyor 3, and is then carbonized in the latter stage in the heating cylindrical section. Further, it is heated from the outside at a higher temperature and steamed and burnt in an oxygen-deficient state.
[0032]
The carbonized material thus processed is cooled by a cooling device 12 provided at one end portion of the carbonized portion of the pipe conveyor 3 which is led out of the furnace, or is sent as it is and discharged from the discharge port 7. After being sent to the apparatus 11 and cooled, the double damper 11d is opened and closed by the operation of the motor M, and is discharged by the screw conveyor 11a or the like so as not to take in the outside air, and is collected as a carbide in the storage tank.
In addition, as described above, vaporized components, decomposition gas, dry distillation gas, and other various gases contained in the object to be processed that are generated during the drying process or the carbonization process are disposed at the horizontal end of the heating cylinder. Is sucked into the nozzle portion 5c of the combustion air supply device 5b through the exhaust duct 2e and mixed with the air to warm the combustion air, and then sent into the hot-air generating furnace 5 where it is burned. Since it is completely decomposed into colorless and harmless gas, the exhaust gas does not condense in the duct or the tube 2e.
[0033]
Example 2
FIG. 2 is a longitudinal sectional view shown for explaining another embodiment of the present invention.
In the same manner as in Example 1, a heat treatment apparatus using a pipe conveyor in a heating cylindrical portion that performs heat treatment such as drying and carbonization treatment on water-containing organic waste, etc. In a state where a plurality of layers are stacked horizontally, the ends of the cylindrical body are connected by a U-shaped tubular joint 2b to form a circularly-circulated circulation conveyance path, and a link chain 4b is formed in the conveyance path. The heated cylindrical portion 2 is formed by the pipe conveyor 3 provided with the flexible transfer means 4 formed by connecting the receiving body 4a such as a blade by the above, and the portion connected by the tubular joint 2b is exposed outside the furnace wall. In this state, the heating cylinder 1 is formed by surrounding the heating cylinder portion 2 with the mantle wall 3, and a hot air generating furnace 5 for supplying hot air to the bottom of the heating furnace is connected to heat the water-containing organic waste. Configure the main body of the device.
[0034]
In the same manner as in the first embodiment, the apparatus for performing the heat treatment has a partition wall 1b between the cylindrical body 2 forming a part of the pipe conveyor 3 disposed in the heating furnace 1 and a surface of the furnace wall 1a. A hot air passage 1c for heating with hot air is formed so as to support the hot air, and a hot air outlet 5d of the hot air generating furnace 5 is connected to a hot air inlet 1d of the hot air passage, and the heating furnace 1 A smoke exhaust device such as a chimney is connected to the upper exhaust port 1f, and the transfer means 4 provided in the circulation transfer path of the pipe conveyor 3 is circulated and transferred by a sprocket 8a of a drive device 8 installed outside the furnace. However, the heat treatment apparatus is configured to dry and carbonize organic waste formed by forming an external heating type heat treatment section using hot air.
[0035]
In the heat treatment section of the pipe conveyor 3 configured as described above, the hot air from the hot air generating furnace 5 is sent in a counter-current state with respect to the moving direction of the object to be processed moving in the circulation transfer path of the pipe conveyor, The heat treatment section close to the hot air generating furnace 5 downstream becomes a carbonization treatment zone heated to an oxygen deficient state at a high temperature, and the heat treatment section close to the upstream exhaust port 3f becomes a drying treatment zone heated by the hot air slightly lowered in temperature. Thus, a heat treatment apparatus suitable for drying and carbonizing the water-containing organic waste is formed.
[0036]
In the heat treatment apparatus configured as described above, the U-shaped tubular joint portion 2b, which is a connecting portion of the heating cylindrical body 2 forming the pipe conveyor 3, is formed on the outer wall 1a of the heating furnace 1. Since it is exposed to the cold outside air temperature on the outside, the workpiece passing through the portion may be cooled and the temperature may be lowered.
Therefore, in the present invention, as shown in FIG. 2, elbow members 2E and 2F as shown in FIG. 7 are provided in order to prevent the curved portion 2b outside the heating furnace from dropping below the processing temperature. The heating means 3a such as resistance heating, induction heating, microwave heating, etc. is provided so as to surround the tubular joint portion 2b that is connected by use, and the object to be processed that passes through the pipe line is kept warm from the outside while being heated. It is designed to be transferred to the processing area.
[0037]
Further, cracked gas, dry distillation gas, etc. generated during the heat treatment are discharged from the nozzle of the combustion air supply device 5b through the exhaust duct 2e connected to the opening 2d provided at the horizontal end of the heating cylinder 2 in the furnace. It is sent to the part 5c, mixed with combustion air using the venturi effect, and combusted and decomposed in the hot air generating furnace 5.
In the embodiment described above, the ends of the right cylinders arranged in the heating furnace are connected by flange connection using elbow members 2E and 2F as shown in FIG. 7 to form a circulation transfer path. Since the pipe conveyor 3 is formed, if there is a defect in a curved part or other part that is easily worn by a chain or the like, it is easily repaired by removing the bolts on the flange parts 2e and 2f of the elbow member. In addition, in the case where heat insulation is performed on a portion exposed outside the furnace, heat insulation means other than the electric heating means 3a shown in the drawing can be easily applied.
[0038]
Example 3 FIG.
FIG. 3 is a longitudinal sectional view shown for explaining another embodiment of the present invention.
As in Example 1, in a heat treatment apparatus using a pipe conveyor as a heating cylinder for drying, carbonizing, etc. organic waste, the pipe conveyor 3 is connected to the heating cylinder 2. It is formed by a heating circulation line spirally wound in the vertical direction, and a blade or the like is provided by a chain or other tow rope 4c suitable for transferring and heat-treating an object to be heated in the circulation line. A flexible transfer means 4 having a large number of 4b connected thereto is provided so as to circulate and form the heating furnace 1 by surrounding the helical heating cylindrical part 2 with an outer wall 3 and at the bottom of the heating furnace. The main body of the apparatus which heat-processes an organic waste by connecting the hot-air generation furnace 5 which supplies a hot air is comprised.
[0039]
As described above, the partition wall 1b is disposed between the heating cylindrical portion 2 in which a part of the pipe conveyor 3 is spirally formed in the heating furnace 1 as in the case of the first embodiment. However, the partition wall is provided with a slight inclination in accordance with the structure of the heating cylindrical portion to form a zigzag hot air passage 1c, and the hot air intake 1d of the hot air passage is formed. Is connected to a hot air outlet 5d of the hot air generating furnace 5, and a smoke exhaust device such as a chimney is connected to an exhaust port 1f at the top of the heating furnace 1.
[0040]
And outside the said heating furnace 1, like Example 1, the drive device 8 provided with the sprocket etc. for circulatingly driving the transfer means 4 of the pipe conveyor 3 and two for supplying a to-be-processed object are supplied. A supply device 10 provided with an opening / closing device such as a heavy damper, and a cooling device for discharging the heat-treated substance, a discharge device 11 equipped with a double damper, etc. are provided to dry water-containing organic waste, An apparatus for carbonizing is configured.
[0041]
Further, the heating cylinder part 2 constituting a part of the pipe conveyor 3 is supported by a slide receiver 2c so as to absorb expansion due to heating, and is generated at one end of the heating cylinder part during the heat treatment. An exhaust duct 6 for sucking gas and leading it to the hot stove generator 5 is provided, and the discharge end of the duct is connected to a nozzle portion 5c of an air supply device 5b provided for supplying combustion air to the hot stove. It is designed to burn using the venturi effect.
[0042]
Then, in each of the drying and carbonizing treatment apparatuses configured as described above, when wastes including cut grass, coffee cake, and other organic substances are put into the hopper 10b of the supply apparatus 10, the supply adjustment apparatus 10e. The double damper 10d is opened and closed so as not to take in outside air, and is supplied from the supply port 6 to the heat treatment section of the pipe conveyor 3, and the supplied organic waste is stirred in the heating cylinder 2 by the transfer means 4. However, it is transferred from the upper side to the lower side, and is heated and dried in the drying process part of the preceding stage of the heating cylindrical part heated from the outside.
[0043]
The organic waste dried in this way is then sent to the carbonization section at the rear stage of the heating cylinder by the transfer means 4 and is heated to a higher temperature and steamed in an oxygen-deficient state. After the carbonization, the cooling is performed by the cooling device 12 provided in the middle of the pipe conveyor 3 provided outside the furnace, or is sent as it is from the discharge port 7 to the discharge device 11 so that the outside air is not taken in. The heavy damper 8d is opened and closed and collected as a product in a storage tank or the like.
[0044]
In this embodiment, the heat treatment part was formed by arranging the circulation line in which the pipe conveyor 3 was spirally wound in the heating furnace, but the pipe conveyor was spirally wound in this way. If it is formed in the heating circulation path, it is easy to lengthen the heating area, but the pipe conveyor can be arranged only in the vertical direction or the oblique direction.
In contrast, the pipe conveyor formed of straight pipes and U-shaped elbow-shaped pipe joints as in the above-described embodiment can be used not only in the vertical direction but also in the oblique direction and the horizontal direction. It is possible to form the heating circuit in a zigzag stacked state in any direction.
[0045]
The present invention in which the drying and carbonization treatment is performed as described above, the workpiece is stirred and transferred in the pipe conveyor forming the heated cylindrical portion, and a unique blade or bucket is used as the transfer means. Since the main body of the drying and carbonization processing equipment is configured by a pipe conveyor using a flexible carrier connected by a chain or the like, a large amount of processing object is fed in or hard foreign matter is generated on the processing object. Even if it is mixed, it does not stop due to biting between the blade and the cylindrical body.
In general, it is a preferable condition that the area of the receiving part of the blade is 60 to 80% of the cross-sectional area of the transfer pipe line, and the blade 4c having the structure shown in FIG. 6 is used. It has also been found that when the transfer means 4 is configured, the efficiency of stirring the object to be processed and sucking the generated gas can be improved.
[0046]
Furthermore, the invention of the present application can adjust the amount of water vapor, carbon dioxide gas, etc. in the heated cylinder by operating each regulating valve according to the water content of the object to be treated and the content of impurities such as sand. Thus, the inside of the heating cylinder can be maintained at an optimum condition suitable for the purpose, so that it can be used only as a drying apparatus without carbonization.
For example, in the above apparatus, if the moving speed of a carrier such as a blade is increased and the residence time of each object to be processed in each heating cylinder is shortened, the object to be processed is controlled not to be carbonized. The present invention can be used as a drying device, and also can be used as an efficient drying device by adjusting the temperature of the hot air generating furnace to keep the temperature of the lower carbonization processing section lower than the carbonization temperature. It is also possible.
[0047]
In the present invention, the curved portion of the circulating conveyance path formed by meandering the pipe conveyor is moved by frictional contact with the pulling rope such as a chain, and therefore is a portion that is more easily worn than other portions. Therefore, repair and maintenance inspection can be easily performed by forming with a separate U-shaped member using an abrasion resistant material.
[0048]
【The invention's effect】
The apparatus for drying and carbonizing organic waste using the pipe conveyor of the present invention can take a larger amount of transfer compared to the apparatus using a screw conveyor conventionally used, so it is relatively slow. A large amount of workpieces can be transferred stably, there is no residue in the cylindrical casing, the transfer operation can be performed quietly, and the wear of the cylindrical body is reduced. Can be suppressed.
In addition, since the circulation conveyance path composed of a pipe conveyor is easy to ensure airtightness, the carbonization treatment can be safely performed, and the process path for heat treatment can be easily lengthened or shortened. be able to.
Furthermore, the invention of the present application generates hot air by heating the cold outside air by mixing the gas generated in the heating cylinder when heated and dried and carbonized with the combustion air sent to the hot air generating furnace. Since the temperature of the furnace is not lowered, it is possible to keep energy consumption low.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing a first embodiment of the present invention.
FIG. 2 is a longitudinal sectional view showing another embodiment of the present invention.
FIG. 3 is a longitudinal sectional view showing another embodiment of the present invention.
FIG. 4 is a cross-sectional view showing a state of transfer means in a pipe line in the present invention.
FIG. 5 is a partial cross-sectional view showing a transfer state in a pipeline according to the present invention.
FIG. 6 is a cross-sectional view showing a state in which another blade of the present invention is used.
FIG. 7 is a cross-sectional view showing a curved tubular joint using the connecting portion of the present invention.
FIG. 8 is a cross-sectional view showing a prior example of the present invention.
[Explanation of symbols]
1. heating furnace
2. Heating cylinder
3. Pipe conveyor
4). Transportation means
5. Hot air generator
6). Supply port
7). Vent
8). Transfer drive device
10. Supply device
11. Discharge device

Claims

A flexible endless conveying means in which a large number of receiving bodies such as blades or buckets for scraping a transfer object are connected at predetermined intervals by an endless string-like body such as a chain is circulated and moved into a cylindrical body that can be heated from the outside. A pipe conveyor formed on an endless conveyance path having a heating cylindrical portion meandering along a straight pipe path and a curved pipe path, and forming a mantle wall so as to surround the heating cylindrical section A partition wall is provided between the mantle wall and the heating cylinder to form a zigzag hot air passage to form a heating furnace, and a hot air generator for supplying hot air to the heating furnace is connected near the bottom of the heating furnace. In the method of drying and carbonizing the water-containing organic waste by heating the heated cylindrical portion from outside with hot air, excess air is supplied to a supply port provided at one end of the uppermost stage of the heated cylindrical portion. Do not incorporate the supply A water-containing organic object to be processed is introduced from a storage, and the object to be processed is sequentially transferred to the lower heating cylinder by the pipe conveyor, and then dried in the upper heating cylinder, and then the lower heating cylinder. Carburizing treatment in the section, sending carbide to the discharge device from the discharge port provided at the lowermost end of the heating cylinder, and discharging from the discharge device to the storage tank so that air is not inhaled from the outside. A method of heat-treating a featured organic waste.

A flexible endless conveying means in which a large number of receiving bodies such as blades or buckets for scraping a transfer object are connected at predetermined intervals by an endless string-like body such as a chain is circulated and moved into a cylindrical body that can be heated from the outside. A pipe conveyor formed on an endless conveyance path having a heating cylindrical portion meandering along a straight pipe path and a curved pipe path, and forming a mantle wall so as to surround the heating cylindrical section A partition wall is provided between the mantle wall and the heating cylinder to form a zigzag hot air passage to form a heating furnace, and a hot air generator for supplying hot air to the heating furnace is connected near the bottom of the heating furnace. In the method of treating the organic waste by heating the heated cylindrical part from outside with hot air, the organic substance is supplied from the supply device to the supply port provided at one end of the uppermost stage of the heated cylindrical part. The workpiece to be processed How to a heat treatment while transported to the object to be processed sequentially lower heating cylinder, heat-treating the organic waste, characterized in that decompose and remove organic substances by Pukonbeya.

A flexible endless conveying means in which a large number of receiving bodies such as blades or buckets for scraping a transfer object are connected at predetermined intervals by an endless string-like body such as a chain is circulated and moved into a cylindrical body that can be heated from the outside. A pipe conveyor formed on an endless conveyance path having a heating cylindrical portion meandering along a straight pipe path and a curved pipe path, and forming a mantle wall so as to surround the heating cylindrical section A partition wall is provided between the mantle wall and the heating cylinder to form a zigzag hot air passage to form a heating furnace, and a hot air generator for supplying hot air to the heating furnace is connected near the bottom of the heating furnace. In the method of treating the organic waste by heating the heated cylindrical part from outside with hot air, the organic substance is supplied from the supply device to the supply port provided at one end of the uppermost stage of the heated cylindrical part. The workpiece to be processed Heat treatment is carried out while sequentially transferring the workpiece to the lower heating cylinder by the conveyor, and vaporized gas such as dry distillation and decomposition gas generated in the heating cylinder is connected to the opening of the horizontal path tip of the heating cylinder. A method for heat-treating organic waste, wherein the organic waste is sucked and mixed by a venturi effect caused by a supply flow of combustion air through an exhaust duct and burned in a hot air generating furnace.

A flexible endless conveying means, in which a large number of receiving bodies such as blades or buckets that scrape out a transfer object are connected at predetermined intervals by an endless string-like body such as a chain, circulates and moves into a cylindrical body that can be heated externally. A pipe conveyor formed and formed in such a manner is formed into an endless conveyance path having a heating cylindrical portion formed in a meandering manner in a straight line and a curved pipe path, and a supply part of a workpiece to the endless conveyance path And a discharge portion, and a mantle wall is formed so as to surround the heating cylindrical portion, and a partition wall is provided between the mantle wall and the heating cylindrical body to form a zigzag-shaped hot air passage to form a heating furnace. An organic waste that is formed and connected to a hot air generator for supplying hot air to the heating furnace in the vicinity of the bottom of the heating furnace so that the heating cylindrical portion is heated externally by hot air A device that heats things.

A flexible endless conveying means in which a large number of receiving bodies such as blades or buckets for scraping a transfer object are connected at predetermined intervals by an endless string-like body such as a chain is circulated and moved into a cylindrical body that can be heated from the outside. The pipe conveyor is formed in an endless conveyance path having a heated cylindrical portion that is meandered by a straight pipe path and a curved pipe path, and supplies and discharges workpieces to the endless conveyance path. Forming a mantle wall so as to surround the heating cylindrical portion, and providing a partition wall between the mantle wall and the heating cylindrical body to form a zigzag hot air passage to form a heating furnace. A hot air generating furnace for supplying hot air to the heating furnace in the vicinity of the bottom of the heating furnace is configured to heat the heating cylindrical part from the outside with hot air, and one end of the uppermost stage of the heating cylindrical part Supply device that supplies workpieces to the section In addition, a discharge device for discharging the processed material is provided at one end of the lowermost stage of the heating cylinder, and the workpiece is heated while being transferred from the upper heating cylinder to the lower heating cylinder by the pipe conveyor. An apparatus for heat-treating organic waste, which is formed so as to be treated.

A flexible endless conveying means in which a large number of receiving bodies such as blades or buckets for scraping a transfer object are connected at predetermined intervals by an endless string-like body such as a chain is circulated and moved into a cylindrical body that can be heated from the outside. A pipe conveyor formed in an endless conveyance path having a heating cylindrical portion meandering in a spiral manner in the vertical direction, and a supply part and a discharge part for a workpiece are provided in the endless conveyance path. Forming a mantle wall so as to surround the heating cylinder portion and providing a partition wall between the mantle wall and the heating cylinder to form a zigzag hot air passage to form a heating furnace; An apparatus for heat-treating organic waste, characterized in that a hot-air generator for supplying hot air to the heating furnace is provided in the vicinity of the bottom so that the heated cylindrical part is heated from outside with hot air.

An endless conveyance path is formed by projecting the curved pipe path portion of the heating cylindrical section formed by meandering and folding the pipe conveyor provided so as to circulate and move the endless conveyance means in the heatable cylinder. The apparatus for heat-treating organic waste according to claim 4 or 5, wherein an electric heating means is provided in the curved pipe line.

In the vicinity of the end of the straight pipe path of the heated cylindrical part formed by meandering and folding the pipe conveyor provided so as to circulate and move the endless conveying means in the heatable cylindrical body, a dry pool generated in the heated cylindrical part, An opening for exhausting cracked gas and the like is formed, the opening is connected to an exhaust duct, and the opening at the tip of the duct is connected to an air supply device of a hot air generating furnace, so that the cracked gas and the like are burned by combustion air. The apparatus for heat-treating organic waste according to claim 4, wherein the organic waste is sucked, mixed and burned in the hot-air generating furnace by the venturi effect of the supply flow.

The apparatus for heat-treating organic waste according to any one of claims 4 to 6, wherein the heating cylindrical portion is supported by a lower surface of a straight pipe line so as to be able to absorb expansion and contraction due to thermal expansion.

The electric heating means provided in the curved pipe section is composed of any one of resistance heating, induction heating, microwave heating, or a combination of these. The apparatus which heat-processes the organic waste described in Claim 6.

The said exhaust duct is provided in a heating furnace so that the decomposition gas etc. which generate | occur | produced in the said heating cylinder part may not condense, The apparatus which heat-processes the organic waste of Claim 7 characterized by the above-mentioned.

The said supply part and discharge part are each provided in the part by which the endless conveyance path formed by a pipe conveyor was derived | led-out outside the heating furnace, The organic waste described in Claim 5 heated Equipment to process.

The organic waste according to claim 12, wherein the supply device provided in the supply unit includes a double damper that can be automatically opened and closed, and is configured to be able to cut off and adjust the entry of outside air. A device that heats things.

13. The discharge device provided in the discharge unit is provided with a cooling means for cooling the discharge, and a double damper capable of automatic opening and closing is provided to block outside air from entering. A device that heat-treats the organic waste described in 1.

The endless string constituting the endless conveying means provided so as to be able to circulate in the conveying line of the pipe conveyor is composed of either a multi-joint body such as a link chain, a chain body, or a wire rope. The apparatus which heat-processes the organic waste as described in any one of Claims 4 thru | or 6.

The organic waste according to any one of claims 4 to 6, wherein the receiving body comprising a blade of the endless conveying means is provided with a through hole or an opening through which exhaust gas such as dry distillation gas can pass. Equipment for heat treatment.

7. The organic waste according to any one of claims 4 to 6, wherein the receiving body comprising the blades of the endless conveying means is formed in 60 to 80% of the cross-sectional area of the transfer pipe line. apparatus.

The organic material according to any one of claims 4 to 6, wherein a cooling means for cooling the processed material is provided in a pipe line between the heating cylindrical part and the discharge part of the endless conveyance path. Equipment that heats waste.