JP4880821B2

JP4880821B2 - Stir crusher

Info

Publication number: JP4880821B2
Application number: JP2001031828A
Authority: JP
Inventors: 健栄大城
Original assignee: 健栄大城
Priority date: 2001-02-08
Filing date: 2001-02-08
Publication date: 2012-02-22
Anticipated expiration: 2021-02-08
Also published as: JP2002233786A

Description

【０００１】
【産業上の利用分野】
本発明は、生ごみ処理装置等における有機固形物等を撹拌粉砕する撹拌粉砕処理装置に関する。
【０００２】
【従来の技術】
従来、生ゴミ処理装置は種々の形式のものが提案されているが、菌によって発酵処理させる方式の場合、例えば残飯類からなる大量の水分を含む生ゴミであると、人手による水切り後さらに大鋸屑やわら片等の水分調整材を大量に混ぜて処理している。しかしながら、微生物による最適な発酵処理条件を得るためには、粉砕と同時に温度管理、水分調整、酸素濃度の調節、及び十分な撹拌等、厳重な管理が必要であり、維持管理が面倒でランニングコストが高く、しかも満足のいく処理を得ることは困難である。そして、処理後に残る量も大量に発生するので、処理済みの生ゴミの搬出周期も短くしなければならない等の欠点があった。
【０００３】
このような問題点を解決するために、本発明者らは、円筒壁に粉砕用孔が形成されている撹拌筒内に撹拌スクリューを設けてなる撹拌装置を、発酵処理槽の内部に設け、撹拌スクリューを作動させることにより、発酵処理槽の下部に堆積した生ごみを撹拌筒内に圧送させ、上部開口縁から押し出すと共に、圧送中に一部の生ごみを粉砕孔から押出すことによって粉砕して落下させ、撹拌、粉砕、水分の蒸散が効果的に行われるようにした生ごみ処理装置を提案した（特公平７−６４６６３号公報）。また、その改良発明として、撹拌筒の円筒壁下端を鋸刃状に構成し、撹拌スクリューの下端に該スクリュー部よりも径大な撹拌羽根を設けることによって、被処理物をより確実に粉砕することができ、粉砕効率をさらに高めると共に、撹拌効果を高めることができる撹拌粉砕装置を提供した（特許第２５３３４５８号掲載公報）。
【０００４】
【発明が解決しようとする課題】
上記提案の撹拌粉砕装置は、生ごみを効率良く撹拌粉砕することができ、従来と比べて飛躍的に短時間に生ごみを発酵処理させ堆肥化できるものであったが、廃油や御飯類等を多く含む場合は撹拌中に団子状となり、発酵処理にやや長時間を要することが判明した。
【０００５】
そこで、本発明は、先に提供した上記撹拌粉砕装置をさらに改良して、従来、撹拌すると団子状となってしまい粉砕することが困難であった油脂分や御飯類及び水分が多く含まれている生ごみであっても、団子状とならず効果的に粉砕処理でき、従来よりも短時間に分解処理できる撹拌粉砕装置を提供することを目的するものである。
【０００６】
【課題を解決するための手段】
上記課題を解決する本発明の撹拌粉砕装置は、被処理物を収容する処理槽と、該処理槽内部に少なくとも下端部が該処理槽内に収容される被処理物内に埋没し、上方部が前記被処理物の堆積面よりも上方に位置するように固定して設けられ、上端及び下端が開口しその周囲に粉砕用孔が形成された円筒状の撹拌筒と、前記処理槽底壁に回転駆動可能に設けられ上部が前記撹拌筒内に嵌合している撹拌スクリューとからなり、該撹拌スクリューは、前記撹拌筒内に嵌合している部分が前記撹拌筒の内径よりも小さい回転径を有する圧送部を有し、且つ前記撹拌筒の下端からの突出部分が、前記圧送部の下端に螺旋状に連なり、前記撹拌筒の外径よりも大きい回転径を有する撹拌粉砕導入部を有してなることを特徴とする構成を有している。
【０００７】
前記撹拌粉砕導入部の下端に、先端が処理槽の内周面に近接する位置まで水平に延びる撹拌棒を設けることにより、より撹拌効果が高まり望ましい。また、前記撹拌粉砕導入部の外周面に間欠的に粉砕用切り込みを形成することによって、撹拌と粉砕効果がより向上し望ましい。本発明の撹拌粉砕装置を生ごみ処理装置に適用することによって、従来では堆肥化への発酵処理が困難であった廃油や御飯類等を多く含む生ごみであっても短時間に且つ良好に発酵処理させることができる。
【０００８】
【実施例】
以下、本発明の実施例を図面に基づき詳細に説明する。
図１に本発明の実施例に係る撹拌粉砕装置の主要部の作動説明図を示し、図２〜図３にその具体的構成を示している。そして、図４に該撹拌粉砕装置を備えた生ごみ処理装置の外観が示されている。
本実施形態の撹拌粉砕装置は、主な構成として、円筒状の処理槽１、該処理槽の中心部にその開口下端が処理槽の床面から所定高さに位置するように固定して設けられた上下端が開口している撹拌筒２、上方部が該撹拌筒２内に位置し、下方部が撹拌筒２の下方に位置するように設けられた撹拌スクリュー３を有する。
【０００９】
処理槽１は、例えば図４に示されているように、適宜のフレームに固定支持され、上方に生ごみ等の被処理物を投入する投入口を有する蓋で覆われ、下方に処理済みの被処理物を取り出す取出口が設けられている。撹拌スクリュー３は、処理槽１の中央部に回転自在に立設され、そのスクリュー軸１０の上端は前記処理槽１の上端に適宜懸架された取付片１１に設けられた軸受１２に回転自在に軸受され、下端は処理槽の底壁１３から下部に延びて、底壁１３の外面に設けられた軸受１４に軸受され、図示しない駆動装置に連動され、回転駆動されるようになっている。
【００１０】
該撹拌スクリュー３は、本発明の特徴部を構成するものであり、処理槽１内に投入された被処理物を撹拌する役目、破砕する役目及び撹拌筒内を圧送する役目を果たすものであり、所定の螺旋外径を有するスクリューコンベヤからなる圧送部１５と、該圧送部１５の下端に螺旋状に連なる撹拌破砕導入部１６と、先端が処理槽の内周面に近接する位置まで水平に延びる撹拌棒１７とからなる。撹拌破砕導入部１６は、図１及び図２に明示するように、前記圧送部１５に連なる螺旋を形成するが、撹拌筒の下方位置で圧送部１５の螺旋から径方向に段差１８を有して撹拌筒の外径よりも径大な最大外径位置１９に達し、次第に下方に下るにしたがってその外径が渦巻状に径小となり、その終端位置に撹拌棒１７が設けられている。撹拌破砕導入部１６のスクリュー外面には、被処理物の撹拌効果と粉砕効果を向上させるために、任意の間隔で粉砕用切り込み２０が設けられている。
【００１１】
撹拌棒１７は、その断面形状は限定されないが、回転方向に面する面が斜面となる断面三角形状が望ましい。そして、撹拌棒１７には、撹拌スクリュー３の撹拌破砕導入部１６に撹拌中の被処理物を効率良く導入するために、誘導羽根２６を設けてある。該誘導羽根２６は、ほぼ短冊形状をし、図１〜図３に示すように、断面三角形状の撹拌棒１７の頂部に端部が撹拌破砕導入部１６に連接するように、撹拌スクリューのリード角にほぼ相当する角度だけ傾斜して取り付けられている。
【００１２】
撹拌筒２は、その内径が前記撹拌用スクリュー３の圧送部１５の直径よりも僅かに大きく且つ上下が開口している円筒状に形成され、撹拌スクリュー３の上方部に外嵌合するように、処理槽１に適宜の取付ブラケット２１により固定支持されている。撹拌筒２の下端部は、処理槽内に堆積された被処理物３０を効率的に粉砕するように鋸歯２２となっている。また、撹拌筒２は、図１及び図３に示すようにその下端及び上端から一定範囲を除いて周面に粉砕用孔２３が形成され、撹拌スクリュー３で圧縮されて送られる被処理物の一部が粉砕用孔２３を通過することによって粉砕されるようになっている。粉砕用孔２３の大きさによって、被処理物の粉砕粒径を制御することができるから、異なる大きさの粉砕用孔を有する複数の撹拌筒を用意し、被処理物に応じてそれを適宜選定して、交換使用できるようにする。
【００１３】
本実施形態の撹拌粉砕装置は、以上のように構成され、図１に示すように、撹拌筒２の下端よりも高く且つその粉砕用孔２３よりも下部位置になるように、処理槽内に被処理物３０を入れ、撹拌スクリュー３を回転させると、処理槽内の被処理物がその底部から撹拌棒１７によって全体が撹拌されながら、且つ撹拌破砕導入部１６の近傍に位置する被処理物は渦巻螺旋状のスクリュー面でもさらに撹拌される。本実施形態の撹拌破砕導入部１６は、同径の単純な螺旋でなく、その外径が上昇するに従って径大となる渦巻螺旋状となっているので、その外周面が直接被処理物に当たり撹拌作用を奏する。しかも、その外周面に粉砕用切り込み２０が形成されているので、該粉砕用切り込み２０によって被処理物を破砕する作用も奏する。
【００１４】
従って、被処理物は、撹拌スクリュー３の撹拌棒１７と撹拌導入部１６の相互作用により撹拌しながら矢印に示す如く移動し、且つ撹拌導入部１６及び撹拌筒の下端に形成された鋸歯２２の相互作用によって破砕されながら、撹拌筒内に圧送される。なお、誘導羽根２６を設けたことにより、撹拌棒１７により撹拌される被処理物が効果的に撹拌破砕導入部１６に誘導させるため、被処理物の循環処理速度が飛躍的に向上した。
【００１５】
撹拌筒２内を圧送中に一部の被処理物は、撹拌筒２の円筒壁に形成された粉砕用孔２３から押し出されることによってさらに粉砕され、円筒壁外周から細片となって再び被処理物堆積部に落下する。また、撹拌筒２内の上部開口部２５に達した被処理物は、撹拌スクリュー３によって押し出され、同様に被処理物堆積部に落下する。粉砕用孔２３及び上部開口部２５から押し出された被処理物３０は、撹拌筒の全周部から分散状態になって自然落下するが、湿った処理物である場合はその過程で水分が蒸散する。撹拌スクリュー３を所定時間駆動することによって、処理槽内に堆積した被処理物が何度も上昇落下を繰り返すことにより、被処理物は十分な撹拌と粉砕及び水分や匂い又はガスの蒸散や飛散が行われ、水分、酸素濃度、及び大きさが適度に調整される。
【００１６】
従って、本装置で例えば水分が多く種々の大きさの厨芥が混在している被処理物を処理すると、被処理物は十分な撹拌と粉砕及び水分や匂い又はガスの蒸散や飛散が行われ、水分、酸素濃度、及び粒度が適度に調整されて、微生物による最適な発酵処理条件が得られ、効率良く発酵処理が行われて、厨芥を処理槽内で効率良く堆肥化することができる。特に本発明では、撹拌スクリューに撹拌破砕導入部１６を設けたことによって、被処理物の破砕撹拌効果が従来のものより著しく向上し、水分や油脂分或いは粘性物の多い生ゴミでも短時間に堆肥化処理が可能となった。
【００１７】
図５は、上記実施形態の撹拌粉砕装置を適用した生ごみ処理装置の外観状態を示している。この生ごみ処理装置では、処理槽内で被処理物を処理する際に発生するガスや水分を外部に排出するに際してその中に含まれる悪臭や微細粉塵等を除去するようになっており、その外部構造は前記特許第２５３３４５８号公報に記載のものと同様である。
【００１８】
図中、２９は処理槽本体であり、前記実施形態の処理槽１に相当し、その内部構造は前記実施形態のものと同様であるので、その詳細な説明は省略する。処理槽本体２９の上部に逆ロート状の屋根３１が設けられ、その頂部に排気ダクト３２が設けられている。該排気ダクトの基部には軸流ファン３３が設けられ、他端部は垂直ダクト３４に接続されている。垂直ダクト３４は、その基部が開口して水槽３５内に収納されて、その上端部は閉塞されその下部の周壁に換気口３７が開口され、大気に開放している。該垂直ダクト３４の下端内部に水中ボンプ３６が設けられ、該水中ポンプから垂直ダクト内を立ち上がって噴水パイプ３８を配管し、その頂部に位置する噴水口３９から、垂直ダクト頂部に向けて噴水させることによって、垂直ダクト内に水フィルターを形成させるようになっている。なお、４０は屋根３１に設けられた処理物の投入口であり、４１は処理槽本体の下方に設けられた被処理物の搬出口である。
【００１９】
本実施形態の生ごみ処理装置は、上記構成により、処理槽内のガスが軸流ファン３３により強制排気されるが、排気ダクト３２から垂直ダクト３４に達した排ガスは垂直ダクト内の水フィルターを通過することにより、排ガス中に含まれる微粉塵や悪臭等が効果的に除去される。したがって、たとえ悪臭や粉塵又はその他の有害物質を放出する被処理物であっても、この処理装置によれば環境を汚染することなく処理することができる。
【００２０】
以上のように、本発明の撹拌粉砕装置は、形状や粒度の違う１種又は２種以上被処理物の混合物の撹拌粉砕に最適であり、例えば生ごみ処理装置等の堆肥製造や飼料製造のための厨芥や植物等の有機固形物の処理装置、菓子やその他の食品原料の撹拌粉砕や混練装置として、工業用原料の撹拌粉砕装置として種々の用途に適用できる。さらに、活性汚泥処理の曝気装置に適用することによって、効果的に曝気ができ、汚水処理に有効である。
【００２１】
【実施例】
実施例１
上記実施形態の生ごみ処理装置により、次のような被処理物を処理した。なお、処理槽１には予め発酵微生物を植種した発酵促進材を適量収容してある。

処理結果：
投入後約２０分間で野菜屑は処理が完了し、魚の頭も約２時間で完全に処理されて乾燥した微細粒状となった。得られた菌床の微細粒状物は、酸味及び酵母臭がややあったが、アンモニア臭は全くなかった。そして、その形態は被処理物の原形は全くとどめてなく、略０．５〜５ｍｍ程度のさらさらした微細粒であり、熟成していた。その結果、本装置によれば、従来の装置では処理が困難であった廃油や魚のアラも短時間に堆肥化処理することができることが確認された。
【００２２】
実施例２

処理結果：
投入後２時間で乾燥した微細粒状物になり処理が完了した。得られた微細粒状物の臭気は、酸味や酵母臭が僅かにあったが、アンモニア臭は全くなかった。
その形態も前記実施例の場合と同様であった。
【００２３】
実施例３
被処理物：
殆どが御飯からなる厨房残渣２０ｋｇ
処理結果：
投入後２時間で完全に乾燥した微細粒状物になり処理が完了した。得られた微細粒状物の臭気は、酸味、酵母臭、腐敗臭、アンモニア臭とも全くなかった。そして、その形態も前記実施例の場合と同様であった。
【００２４】
以上の実施例の結果から明らかなように、従来の生ごみ処理機では団子状に固まって処理することができなかった廃油や御飯類を多く含む厨房残渣でも、団子状になることなく短時間に、且つ腐敗臭を発生させることなく良好に発酵処理することができた。そして、水分を多く含む生ごみでも、処理済み状態では乾燥してさらさらの微細粒状物となり、肥料として有効な微細粒状物が得られたが、その量は発酵菌の作用によって殆どが発酵分解されるので僅かである。従って、毎日大量の生ごみを処理しても処理済みのものを取り出す間隔は従来よりも飛躍的に長くすることができ、メンテナンスも容易である。
【００２５】
【発明の効果】
以上のように、本発明の撹拌粉砕装置によれば、撹拌スクリューが撹拌破砕導入部を有するので、被処理物は、効果的に撹拌され且つ破砕されながら、撹拌筒内に圧送される。そして、撹拌筒内を上昇させてそこから自然落下させて再び処理槽下部に戻す循環を繰り返しながら撹拌及び粉砕が行われるので、被処理物に無理な力を加えることなく、非常にソフトな形で撹拌粉砕ができる。また、処理中に水分の蒸散が促進され、被処理物の水分や酸素濃度等の調節が容易にできる。その結果、被処理物の破砕撹拌効果が著しく向上し、水分や油脂分を多く含む被処理物でも短時間に乾燥撹拌破砕処理することができる。さらに、請求項２及び３の構成によれば、粉砕撹拌効果が一段と向上する。
【００２６】
従って、本発明の撹拌粉砕装置を生ごみ処理装置に適用することによって、従来の生ごみ処理装置では処理が困難であった廃油や御飯類、魚のあら等を短時間でかつ団子状となることなくさらさらの微細粒状に堆肥化処理することができる。
【図面の簡単な説明】
【図１】本発明の実施形態にかかる撹拌粉砕装置の断面概略図による作動説明図である。
【図２】図１のＡ−Ａ断面概略図である。
【図３】誘導羽根の取付け部の模式斜視図である。
【図４】撹拌筒の正面図である。
【図５】本発明の実施形態にかかる撹拌粉砕装置を適用した生ごみ処理装置の正面図である。
【符号の説明】
１処理槽２撹拌筒
３撹拌スクリュー１０スクリュー軸
１５圧送部１６撹拌破砕導入部
１７撹拌棒１８段差
２０切り込み２２鋸刃
２３粉砕用孔２６誘導羽根
２９処理槽本体３０被処理物
３１屋根３２排気ダクト
４０投入口４１搬出口[0001]
[Industrial application fields]
The present invention relates to an agitation and pulverization apparatus for agitating and pulverizing organic solids and the like in a garbage disposal apparatus and the like.
[0002]
[Prior art]
Conventionally, various types of garbage processing apparatuses have been proposed. However, in the case of a method in which fermentation treatment is performed by bacteria, for example, if the garbage contains a large amount of moisture consisting of leftovers, the sawdust is further removed after manual draining. A large amount of moisture adjusting material such as straw pieces is mixed and processed. However, in order to obtain optimal fermentation treatment conditions by microorganisms, strict management such as temperature control, moisture adjustment, oxygen concentration adjustment, and sufficient agitation at the same time as pulverization is necessary, and maintenance management is cumbersome and running costs However, it is difficult to obtain a satisfactory process. Further, since a large amount is left after the processing, there is a disadvantage that the processing period of the processed garbage must be shortened.
[0003]
In order to solve such a problem, the present inventors provided a stirring device provided with a stirring screw in a stirring cylinder in which a crushing hole is formed in a cylindrical wall inside the fermentation treatment tank, By operating the stirring screw, the garbage deposited in the lower part of the fermentation tank is pumped into the stirring cylinder, pushed out from the upper opening edge, and pulverized by extruding some of the garbage from the crushing hole during the pumping. In this way, a garbage disposal apparatus that can be dropped, stirred, pulverized, and effectively evaporated is proposed (Japanese Patent Publication No. 7-64663). In addition, as an improved invention, the lower end of the cylindrical wall of the stirring cylinder is formed in a saw blade shape, and a stirring blade having a diameter larger than that of the screw portion is provided at the lower end of the stirring screw, whereby the object to be processed is more reliably crushed. Therefore, there has been provided a stirring and grinding device that can further improve the grinding efficiency and increase the stirring effect (Japanese Patent No. 2533458).
[0004]
[Problems to be solved by the invention]
The above-mentioned proposed agitation and pulverization apparatus can efficiently agitate and pulverize food waste, and can ferment and compost food waste in a significantly shorter time than conventional methods. In the case of containing a large amount of, it became a dumpling during stirring, and it was found that the fermentation process requires a little longer time.
[0005]
Therefore, the present invention further improves the above-described stirring and pulverizing apparatus, and conventionally contains a large amount of oils and fats, rice, and moisture that have been difficult to pulverize when stirred. It is an object of the present invention to provide an agitation and pulverization apparatus that can effectively pulverize even garbage that is not dumpling, and can be decomposed in a shorter time than before.
[0006]
[Means for Solving the Problems]
The stirring and pulverizing apparatus of the present invention that solves the above problems includes a processing tank for storing a processing object, and at least a lower end portion embedded in the processing object stored in the processing tank. Is fixed so as to be positioned above the deposition surface of the object to be processed, a cylindrical stirring cylinder having upper and lower ends opened and crushing holes formed around the upper end and the bottom wall of the processing tank The stirring screw is provided so as to be rotationally driven, and the upper part is fitted in the stirring cylinder. The stirring screw has a portion fitted in the stirring cylinder smaller than the inner diameter of the stirring cylinder. An agitation and pulverization introduction unit having a pumping part having a rotating diameter and a protruding portion from the lower end of the stirring cylinder spirally connected to the lower end of the pumping part and having a rotating diameter larger than the outer diameter of the stirring cylinder It has the structure characterized by having.
[0007]
It is desirable that the stirring effect is further enhanced by providing a stirring rod extending horizontally to a position where the tip is close to the inner peripheral surface of the treatment tank at the lower end of the stirring and grinding introduction portion. In addition, it is desirable to intermittently form pulverization cuts on the outer peripheral surface of the agitation and pulverization introduction portion to further improve the agitation and pulverization effect. By applying the stirring and pulverizing apparatus of the present invention to a garbage disposal apparatus, even a garbage containing a large amount of waste oil, rice, etc., which has conventionally been difficult to be fermented into compost, can be quickly and satisfactorily obtained. It can be fermented.
[0008]
【Example】
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 shows an operation explanatory diagram of the main part of an agitation and pulverization apparatus according to an embodiment of the present invention, and FIGS. And the external appearance of the garbage processing apparatus provided with this stirring and grinding apparatus is shown by FIG.
The stirring and pulverizing apparatus of the present embodiment includes, as main components, a cylindrical treatment tank 1, and is fixed to the center of the treatment tank so that the lower end of the opening is located at a predetermined height from the floor of the treatment tank. A stirring cylinder 2 having an open upper and lower end, and an agitation screw 3 provided so that an upper part is located in the agitation cylinder 2 and a lower part is located below the agitation cylinder 2 are provided.
[0009]
For example, as shown in FIG. 4, the processing tank 1 is fixedly supported by an appropriate frame, and is covered with a lid having an input port for inputting an object to be processed such as garbage, and has been processed below. An outlet for taking out the workpiece is provided. The stirring screw 3 is erected so as to be rotatable at the central portion of the processing tank 1, and the upper end of the screw shaft 10 is freely rotatable on a bearing 12 provided on an attachment piece 11 that is appropriately suspended from the upper end of the processing tank 1. The lower end extends from the bottom wall 13 of the processing tank to the lower part, and is supported by a bearing 14 provided on the outer surface of the bottom wall 13, and is driven to rotate in conjunction with a driving device (not shown).
[0010]
The stirring screw 3 constitutes a characteristic part of the present invention, and plays a role of stirring, crushing, and pressure-feeding the inside of the stirring cylinder of an object to be processed put into the processing tank 1. The pumping unit 15 made of a screw conveyor having a predetermined spiral outer diameter, the stirring and crushing introduction unit 16 spirally connected to the lower end of the pumping unit 15, and a position where the tip is close to the inner peripheral surface of the processing tank It consists of a stirring rod 17 that extends. As shown in FIGS. 1 and 2, the stirring crushing introduction part 16 forms a spiral that continues to the pumping part 15, but has a step 18 in the radial direction from the spiral of the pumping part 15 at a position below the stirring cylinder. Thus, the outer diameter reaches a maximum outer diameter position 19 larger than the outer diameter of the stirring cylinder and gradually decreases downward, and the outer diameter decreases in a spiral shape, and a stirring rod 17 is provided at the end position. In order to improve the stirring effect and the crushing effect of the object to be processed, crushing notches 20 are provided at arbitrary intervals on the outer surface of the screw of the stirring crushing introduction portion 16.
[0011]
Although the cross-sectional shape of the stirring rod 17 is not limited, it is preferably a triangular cross-section in which the surface facing the rotation direction is an inclined surface. The stirring rod 17 is provided with guide vanes 26 in order to efficiently introduce the workpiece to be stirred into the stirring crushing introduction portion 16 of the stirring screw 3. The guide blade 26 has a substantially strip shape, and, as shown in FIGS. 1 to 3, the lead of the stirring screw is connected so that the end of the stirring rod 17 is connected to the stirring crushing introduction portion 16 at the top of the stirring rod 17 having a triangular cross section. It is attached with an inclination of an angle substantially corresponding to the corner.
[0012]
The stirring cylinder 2 is formed in a cylindrical shape whose inner diameter is slightly larger than the diameter of the pumping portion 15 of the stirring screw 3 and whose top and bottom are open, and is fitted to the upper part of the stirring screw 3. The treatment tank 1 is fixedly supported by an appropriate mounting bracket 21. The lower end portion of the stirring cylinder 2 is a saw tooth 22 so as to efficiently pulverize the workpiece 30 deposited in the processing tank. Further, as shown in FIGS. 1 and 3, the stirring cylinder 2 has a crushing hole 23 formed on the peripheral surface except for a certain range from the lower end and the upper end, and is compressed by the stirring screw 3 and sent. A part is pulverized by passing through the pulverizing hole 23. Since the pulverized particle size of the object to be processed can be controlled by the size of the pulverizing hole 23, a plurality of stirring cylinders having pulverizing holes of different sizes are prepared, and this is appropriately set according to the object to be processed. Select and enable replacement.
[0013]
The stirring and pulverizing apparatus of the present embodiment is configured as described above. As shown in FIG. 1, the stirring and pulverizing apparatus is disposed in the processing tank so as to be higher than the lower end of the stirring cylinder 2 and at a lower position than the pulverizing hole 23. When the workpiece 30 is put and the stirring screw 3 is rotated, the workpiece in the processing tank is stirred from the bottom by the stirring rod 17 and located near the stirring crushing introduction portion 16. Is further stirred even on the spiral spiral screw face. The stirring crushing introduction part 16 of the present embodiment is not a simple spiral of the same diameter but a spiral spiral shape whose diameter increases as the outer diameter increases, so that the outer peripheral surface directly hits the object to be processed and stirred. Has an effect. Moreover, since the crushing cut 20 is formed on the outer peripheral surface thereof, the crushing cut 20 also has an effect of crushing the workpiece.
[0014]
Accordingly, the object to be processed moves as indicated by the arrow while stirring by the interaction between the stirring rod 17 of the stirring screw 3 and the stirring introducing portion 16, and the saw-tooth 22 formed at the lower end of the stirring introducing portion 16 and the stirring cylinder. While being crushed by the interaction, it is pumped into the stirring cylinder. In addition, by providing the guide blades 26, the object to be processed stirred by the stirring rod 17 is effectively guided to the stirring crushing introduction section 16, and thus the circulation processing speed of the object to be processed is greatly improved.
[0015]
While being pumped through the stirring cylinder 2, a part of the object to be processed is further pulverized by being pushed out from the crushing hole 23 formed in the cylindrical wall of the stirring cylinder 2, and becomes a strip from the outer periphery of the cylindrical wall again. It falls to the processed material accumulation part. In addition, the object to be processed that has reached the upper opening 25 in the stirring cylinder 2 is pushed out by the stirring screw 3 and similarly falls to the object to be processed accumulation part. The object to be processed 30 pushed out from the crushing hole 23 and the upper opening 25 is dispersed and spontaneously falls from the entire circumference of the stirring tube. However, in the case where the substance is moist, moisture evaporates in the process. To do. By driving the agitating screw 3 for a predetermined time, the object to be processed accumulated in the processing tank repeatedly rises and falls, so that the object to be processed is sufficiently stirred and pulverized, and transpiration and scattering of moisture, odor or gas. And the moisture, oxygen concentration, and size are appropriately adjusted.
[0016]
Therefore, for example, when processing an object to be processed with a lot of moisture mixed with various sizes of soot in this apparatus, the object to be processed is sufficiently stirred and pulverized, and transpiration or scattering of moisture, odor or gas is performed. Moisture, oxygen concentration, and particle size are appropriately adjusted, optimal fermentation treatment conditions by microorganisms are obtained, fermentation treatment is efficiently performed, and straw can be efficiently composted in the treatment tank. In particular, in the present invention, by providing the stirring crushing introduction part 16 in the stirring screw, the crushing stirring effect of the object to be processed is remarkably improved as compared with the conventional one, and even garbage with a lot of moisture, fats and oils or viscous substances can be obtained in a short time. Composting processing became possible.
[0017]
FIG. 5 shows the appearance of a garbage disposal apparatus to which the stirring and grinding apparatus of the above embodiment is applied. In this garbage processing apparatus, when discharging the gas and moisture generated when processing the object to be processed in the processing tank to the outside, it removes malodors and fine dust contained therein, The external structure is the same as that described in Japanese Patent No. 2533458.
[0018]
In the figure, reference numeral 29 denotes a processing tank main body, which corresponds to the processing tank 1 of the above-described embodiment, and its internal structure is the same as that of the above-described embodiment, and thus detailed description thereof is omitted. A reverse funnel-shaped roof 31 is provided at the top of the treatment tank body 29, and an exhaust duct 32 is provided at the top. An axial fan 33 is provided at the base of the exhaust duct, and the other end is connected to a vertical duct 34. The vertical duct 34 is opened in the base and accommodated in the water tank 35, the upper end thereof is closed, and a ventilation port 37 is opened in the lower peripheral wall thereof, which is open to the atmosphere. An underwater pump 36 is provided inside the lower end of the vertical duct 34, rises in the vertical duct from the submersible pump, pipes a fountain pipe 38, and fountains from the fountain port 39 located at the top to the top of the vertical duct. Thus, a water filter is formed in the vertical duct. In addition, 40 is an inlet for the processed material provided on the

roof

31, and 41 is an outlet for the processed material provided below the main body of the processing tank.
[0019]
In the garbage processing apparatus of the present embodiment, the gas in the processing tank is forcibly exhausted by the axial fan 33 by the above configuration, but the exhaust gas that has reached the vertical duct 34 from the exhaust duct 32 passes through the water filter in the vertical duct. By passing, fine dust, bad odor and the like contained in the exhaust gas are effectively removed. Therefore, even if it is a to-be-processed object which releases a bad smell, dust, or other harmful substances, according to this processing apparatus, it can process without polluting the environment.
[0020]
As described above, the stirring and pulverizing apparatus of the present invention is optimal for stirring and pulverizing a mixture of one type or two or more types of workpieces having different shapes and particle sizes. It can be applied to various uses as an industrial raw material agitation and kneading device, as a processing device for organic solids such as straw and plants, agitation and kneading device for confectionery and other food materials. Furthermore, by applying it to an activated sludge treatment aeration apparatus, it is possible to effectively aerate and is effective for sewage treatment.
[0021]
【Example】
Example 1
The following objects were processed with the garbage processing apparatus of the said embodiment. The treatment tank 1 contains a suitable amount of a fermentation promoting material in which fermented microorganisms have been previously seeded.

Processing result:
The processing of the vegetable scraps was completed in about 20 minutes after the addition, and the fish heads were completely processed in about 2 hours to become dry fine granules. The resulting fine granular material of the bacterial bed had a slight acidity and yeast odor, but no ammonia odor. And the form did not keep the original form of a to-be-processed object at all, it was a free-flowing fine grain of about 0.5-5 mm, and was aging. As a result, according to the present apparatus, it was confirmed that waste oil and fish arabes that were difficult to process with the conventional apparatus could be composted in a short time.
[0022]
Example 2

Processing result:
In 2 hours after charging, it became a fine granular material that was dried, and the treatment was completed. The odor of the resulting fine granular material had a slight acidity and yeast odor, but no ammonia odor.
The form was also the same as in the previous example.
[0023]
Example 3
Workpiece:
20kg kitchen residue consisting mostly of rice
Processing result:
In 2 hours after the addition, it became a completely dry fine granular material, and the treatment was completed. The odor of the fine particles obtained was not sour, yeast, rot or ammonia. And the form was also the same as the case of the said Example.
[0024]
As is clear from the results of the above examples, even kitchen residues containing a large amount of waste oil and rice that could not be processed in a dumpling form with a conventional garbage processing machine, without becoming dumpling form for a short time. In addition, it was possible to perform the fermentation process satisfactorily without generating a rotting odor. And even if the garbage contains a lot of moisture, it was dried in the treated state to become smooth fine granules, and fine granules effective as fertilizer were obtained. Therefore, it is slight. Therefore, even if a large amount of garbage is processed every day, the interval for taking out the processed items can be dramatically increased as compared with the conventional case, and maintenance is easy.
[0025]
【Effect of the invention】
As described above, according to the stirring and pulverizing apparatus of the present invention, since the stirring screw has the stirring and crushing introduction portion, the object to be processed is pumped into the stirring cylinder while being effectively stirred and crushed. Then, stirring and pulverization are performed while repeating the circulation of raising the inside of the stirring cylinder, allowing it to fall naturally and returning it back to the lower part of the processing tank, so that an extremely soft shape can be obtained without applying excessive force to the object to be processed. Can be stirred and ground. In addition, transpiration of water is promoted during the treatment, and the water content, oxygen concentration, etc. of the object to be treated can be easily adjusted. As a result, the crushing and stirring effect of the object to be processed is remarkably improved, and the object to be processed containing a large amount of moisture and oil can be subjected to dry stirring and crushing in a short time. Furthermore, according to the structure of Claim 2 and 3, the grinding | pulverization stirring effect improves further.
[0026]
Therefore, by applying the stirring and pulverizing apparatus of the present invention to a garbage processing apparatus, waste oil, rice, and fish that have been difficult to process with conventional garbage processing apparatuses can be dumped in a short time. It can be composted into fine and fine particles.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is an operation explanatory diagram based on a schematic cross-sectional view of a stirring and grinding apparatus according to an embodiment of the present invention.
FIG. 2 is a schematic cross-sectional view taken along the line AA of FIG.
FIG. 3 is a schematic perspective view of a mounting portion of a guide blade.
FIG. 4 is a front view of a stirring cylinder.
FIG. 5 is a front view of a garbage disposal apparatus to which the stirring and grinding apparatus according to the embodiment of the present invention is applied.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Processing tank 2 Stirring cylinder 3 Stirring screw 10 Screw shaft 15 Pumping part 16 Stirring crushing introduction part 17 Stirring rod 18 Step 20 Cutting 22 Saw blade 23 Crushing hole 26 Guide blade 29 Processing tank main body 30 Processed object 31 Roof 32 Exhaust duct 40 Input port 41 Unloading port

Claims

A processing tank for storing the object to be processed, and at least a lower end portion of the processing tank is embedded in the object to be processed stored in the processing tank, and an upper part is positioned above the deposition surface of the processing object. A cylindrical stirring cylinder having an upper end and a lower end that are open and having a pulverization hole formed in the periphery thereof, and an upper portion that is rotatably driven on the bottom wall of the processing tank The stirring screw has a pumping portion in which the portion fitted in the stirring cylinder has a rotation diameter smaller than the inner diameter of the stirring cylinder, and the stirring screw A stirring pulverization apparatus characterized in that a protruding portion from the lower end of the cylinder is spirally connected to the lower end of the pumping section, and has a stirring and pulverizing introduction section having a rotation diameter larger than the outer diameter of the stirring cylinder. .

The stirring and grinding apparatus according to claim 1, wherein a stirring bar is provided at a lower end of the stirring and grinding introduction portion so as to extend horizontally to a position where the tip is close to the inner peripheral surface of the treatment tank.

The agitation and pulverization apparatus according to claim 1 or 2, wherein the crushing cuts are intermittently formed on the outer peripheral surface of the agitation and pulverization introduction part.

The stirring and grinding apparatus according to claim 1, wherein the stirring and grinding apparatus is a garbage disposal apparatus.