【０００１】
【発明の属する技術分野】
本発明は、砕石砕砂などの骨材用材料の洗浄と角取り処理とを施してコンクリート用骨材とする骨材用固形物の洗浄処理装置に関する。
【０００２】
【従来の技術】
山砕石等の骨材資源からコンクリート骨材を生産する場合には、骨材資源を破砕（特許文献１）し、その破砕した砕石等を水にて洗浄して泥分や微粉を除去して使用する（特許文献２）。
【０００３】
例えば、その洗浄装置として、回転ドラムの内部に、環状隔壁により区分けされた複数の洗浄槽を配設し、それぞれの洗浄槽に、投入された砂利などを運ぶために内周面に設けられた、水切りネットが張られたバケットと、砂利等に洗浄水をかけるための洗浄水噴射装置を備えた回転ドラム式の洗浄装置がある（特許文献３）。
【０００４】
ところで、砕石から生産した骨材は、エッジなどと称される角部を有するため、その骨材を混合したコンクリートをコンクリートミキサー車で運搬する場合、回転するミキサーの内面に角部が当たり磨耗を生じるなどの不具合がある。
【０００５】
そこで、洗浄と角取りを行う装置として、ベース上に、砂利等の投入口及び洗浄水の給水管を有する円筒状胴部を設け、その中心に、周縁に攪拌翼を取付けた片持ち支持の回転主軸を設け、回転主軸と同一軸心上に回転副軸を設け、これに加圧蓋を取付け、円筒状胴部の排出口に嵌合する。排出口の内周と加圧蓋の周縁に複数個の超硬チップを組込み、洗浄水の給水は、円筒状胴部内の圧力に応じて制御し、円筒状胴部に設けられた投入口より投入された砂利等の原料は、攪拌翼に攪拌されながら円筒状胴部の排出口の方へ移送される。そして、砂利等の原料は、円筒状胴部の排出口の内周に組込まれた超硬部材と、押圧されながら回転する加圧蓋の周縁に組込まれた超硬部材との間隙に挟み込まれて強硬に擦り付けられるので、小砂利及び粒径が１０ｍｍ程度の砕石を細骨材に加工することが可能である。また、砂利等に混入している死石、粘土塊等は、完全に破砕されて除去されるとともに、砕石等のエッジが取り除かれ、丸みを持った良質のコンクリート骨材を生産する（特許文献４）ことが記載されている。
【０００６】
【特許文献１】
特開平７−３３４９１号公報
【特許文献２】
特開平７−２３６８９６号公報
【特許文献３】
特開平１０−１３１２４１号公報
【特許文献４】
特開平１１−１３８０３８号公報
【０００７】
【発明が解決しようとする課題】
しかし、上記のように円筒状胴部内に攪拌翼を備えたものでは、攪拌翼を回転駆動する駆動装置が必要となるため、装置が複雑となり、また、胴部に砕石を処理した後、排出するものであるから、砕石を連続的に処理することができず、処理効率に劣る面がある。また、洗浄工程において、多量の洗浄水が使用されるが、この洗浄後の洗浄水の処理が繁雑であった。
【０００８】
そこで、本発明は、骨材用材料の洗浄と角取りとを連続して効率よく行うことができ、洗浄水の有効利用が可能な骨材用材料の洗浄処理装置を提供することを目的とする。
【０００９】
【課題を解決するための手段】
請求項１の発明は、管路内の骨材用材料を洗浄水の圧送により移送しながら洗浄と角取りを行う洗浄装置と、この洗浄装置により排出された骨材用材料と洗浄水とを骨材用材料と汚泥水とに分離する分離装置と、前記汚泥水を処理する汚泥水処理装置とを備えるものである。
【００１０】
この請求項１の構成によれば、洗浄水の圧送により骨材用材料の洗浄と角取りとを行うから、回転機構などの機械的駆動部分がなく、骨材用材料の洗浄と角取りとを効率よく行うことができ、分離装置により洗浄装置で処理された骨材用材料と汚泥水を分離し、分離した骨材用材料を骨材として使用し、分離した汚泥水を汚泥処理装置により処理することができる。
【００１１】
また、請求項２の発明は、前記汚泥水処理装置は、前記汚泥水を汚泥と水とに分離し、この水を洗浄水として前記洗浄装置に送る洗浄水返送手段を備えるものである。
【００１２】
この請求項２の構成によれば、汚泥水を汚泥と水に分離し、その水を再び洗浄水として使用するから、洗浄水が循環し、洗浄水を無駄なく使用できる。
【００１３】
また、請求項３の発明は、前記洗浄装置は、前記骨材用材料の投入口と排出口とを有する管路と、前記投入口と排出口の間で前記管路に設けられた直管部と、前記管路の前記投入口側に設けられ該管路内に洗浄水を噴射する噴射口と、この噴射口から前記洗浄水を噴射して前記骨材用材料を前記排出口側に移送する洗浄水噴射手段とを備えるものである。
【００１４】
この請求項３の構成によれば、投入口から投入された骨材用材料は、噴射口から噴射された洗浄水により直管部内を排出口側に移送され、この間に骨材用材料同士が衝突したり直管部内面に衝突したりして角取りがなされると共に、洗浄された後、排出口から排出され、骨材用材料を連続的に洗浄及び角取り処理することができる。
【００１５】
【発明の実施形態】
以下、本発明の第１実施形態について図１〜図２を参照して詳細に説明する。本発明は、山，陸，河川で採取した砂利，砂，又は砕石，砕砂，コンクリート廃材など各種の骨材用材料を洗浄及び角取りするに適した装置であり、図１に示すように、洗浄処理装置は、骨材用材料１０１の投入装置たるベルトコンベヤ１と、このベルトコンベヤ１により投入された骨材用材料１０１の洗浄及び角取り処理を行う洗浄装置２と、この洗浄装置２から排出された骨材用材料１０１と洗浄使用後の洗浄水である汚泥水Ｗ１とを分離する骨材分離装置３と、この骨材分離装置３により分離された汚泥水Ｗ１を処理する汚泥水処理装置４と、この汚泥処理装置４により汚泥分を分離した水を洗浄水Ｗとして前記洗浄装置２に送る洗浄水返送装置５とを備える。
【００１６】
図２に示すように、前記洗浄装置２は、搬入管部２１と直管部２２と搬出管部２３とを備え、搬入管部２１には直管部２２より大径の大径部２１１を有し、それら管部２１，２２，２３により連続した管路２４を構成している。尚、洗浄装置２の部材は鋼製からなる。
【００１７】
前記大径部２１１の端部を略半円形の蓋体２１２により塞ぎ、この蓋体２１２は筒状の噴射口２５が設けられ、この噴射口２５は蓋体２１２に気密に挿通され、その噴射口２５は直管部２２と同一方向で該直管部２２のほぼ中心に洗浄水Ｗを噴射する。その噴射口２５の先端より僅かに搬出側で、前記大径部２１１には前記直管部２２と交差方向に分岐管２１３，２１４が設けられ、上向きの分岐管２１３の先端が、骨材用材料１０１の投入口２６になっている。また、下向きの分岐管２１４の先端に管継手たるフランジ２１４Ｆを設け、このフランジ２１４Ｆに止水板２１５をボルトナットなどで固定して分岐管２１４の先端を塞いでいる。前記大径部２１１の搬出側には、搬出側に縮小する縮小管部２１６を設け、この縮小管部２１６の搬入側に前記直管部２２と同径の短管部２１７を設けており、この短管部２１６の先端にフランジ２１７Ｆを設ける。前記直管部２２は両端にフランジ２２Ｆ，２２Ｆを有し、前記フランジ２１７Ｆ，２２Ｆをボルトナットなどにより連結して搬入管部２１と直管部２２とを着脱可能に連結している。前記搬出管部２３は、前記直管部２２と同径の本管部２３１と、この本管部２３１の途中で交差方向に分岐した分岐管２３２とを有するＴ字状をなし、本管部２３１の両端にフランジ２３１Ｆを設け、前記フランジ２２Ｆ，２３１Ｆをボルトナットなどにより連結して直管部２２と搬出管部２３とを着脱可能に連結している。また、本管部２３１の端部のフランジ２３１Ｆに止水板２３３をボルトナットなどで固定して本管部２３１の端部を塞いでいる。このように、管路２４の排出口側端部２４Ｔを前記止水板２３３で閉塞し、前記排出口側端部２４Ｔより投入口２６側で管路２４に分岐管２３２が設けられており、下向きの前記分岐管２３２の先端が排出口２７であり、フランジ２３２Ｆが設けられている。尚、洗浄効果と角取り効果を考慮して、前記直管部２２の長さＬを該直管部２２の内径Ｄの１０倍以上としている。そして、管路２４の排出口側端部２４Ｔを前記止水板２３３で閉塞し、前記排出口側端部２４Ｔより投入口２６側で前記管路２４に前記分岐管２３２が設けられている。
【００１８】
前記投入口２６にはホッパー１１が接続され、前記ベルトコンベヤ１から落下した骨材用材料１０１が前記ホッパー１１に落下し、該ホッパー１１に案内されて前記投入口２６から管路２４内に投入される。
【００１９】
前記骨材分離装置３は、振動ふるい装置３１を備え、この振動ふるい装置３１は、粗目と細目ふるい３１１，３１２を上下に有し、粗目のふるいを通過した骨材用材料１０１が細目のふるい３１２で分級され、粗目のふるい３１１は例えば１０ｍｍ以上の骨材用材料１０１を捕捉し、この１０ｍｍ以上の骨材用材料１０１は、斜設された粗目のふるい３１１の端部から、ベルトコンベヤ３２により、第１の収納部３４に落下し、細目のふるい３１２で細くされた骨材用材料１０１は、斜設された細目のふるい３１２の端部から、ベルトコンベヤ３４により、第２の収納部３５に落下して分級される。尚、前記排出口２７には排出路３６が接続され、この排出路３６の下流が前記振動ふるい装置３１の上部に位置し、振動ふるい装置３１に骨材用材料１０１及び洗浄使用済みの汚泥水Ｗ１が供給される。また、洗浄水Ｗと骨材用材料１０１から発生した微粒子などからなる汚泥水Ｗ１は、振動ふるい装置３１を通過し、汚水処理装置４の汚泥槽４１に落下する。尚、汚泥水Ｗ１には、洗浄前の骨材用材料１０１に付着していた泥なども含まれる。
【００２０】
汚泥処理装置４は、前記汚泥槽４１の下流に向って、凝集剤投入槽４２と、凝集沈殿槽４３と、貯水槽４４とを有する。前記汚泥槽４１は汚泥の沈殿層であり、沈殿した汚泥Ｓを分離排出し、汚泥水Ｗ１の上澄みを凝集剤投入槽４２に送り、この凝集剤投入槽４２において高分子凝集剤などの凝集剤を投入し、凝集剤を混合した汚泥水Ｗ１が前記凝集沈殿槽４３に送られ、汚泥の泥状物を凝固、沈殿させ、分離し、このように泥状物を分離した上澄み水が前記洗浄水Ｗとして貯水槽４４に送られる。
【００２１】
前記洗浄水返送装置５は、前記貯水槽４４と噴射口２５とを繋ぐ返送路５１と、この返送路５１を通して前記貯水槽４４の洗浄水Ｗを噴射口２５から噴射する洗浄水噴射手段たるポンプ５２とを備え、このポンプ５２としてはプランジャーポンプなどが用いられる。
【００２２】
つぎに、洗浄処理装置の駆動につき説明する。ベルトコンベヤ１により砕石等の骨材用原料１０１をホッパー１１に投入し、投入口２６から洗浄装置２の管路２４内に連続的に供給する。同時にポンプ５２を駆動し、洗浄水Ｗを噴射口２５から高圧で噴射する。すると、骨材用原料１０１が洗浄水Ｗにより搬出口２７側へと移送され、特に直管部２２内において、骨材用原料１０１，１０１同士が衝突すると共に、直管部２２の内面に衝突して骨材用原料１０１の角取りがなされると共に、洗浄される。この場合、直管部２２の搬入側に縮小管部２１６があるため、骨材用原料１０１と洗浄水Ｗとの流れが混合されると共に絞られ、後の洗浄及び角取りが良好になされる。また、直管部２２は内径Ｄの１０倍以上の長さとすることにより、直管部２２内を移送される間に十分な洗浄及び角取り効果が得られる。
【００２３】
そして、骨材用原料１０１と洗浄水Ｗが汚泥した汚泥水Ｗ１は、止水板２３３あるいは止水板２３３の手前に溜まった骨材用原料１０１に衝突した後、向きを変え、前記衝突により運動エネルギーが減少した状態で排出口２７から排出路３６を通って前記振動ふるい装置３１に供給され、骨材用原料１０１は１０ｍｍ以上と未満に分級され、第１および第２の収納部３３，３５に収納される。この場合、斜設したふるい３１１，３１２に落下した骨材用原料１０１は、通過するものは落下し、捕捉されたものは振動により徐々に斜め下方へ送られ、それぞれのコンベヤ３２，３４に受け渡される。
【００２４】
一方、振動ふるい装置３１を通過した汚泥水Ｗ１は、汚泥水処理装置４により汚泥分が分離され、分離後の水が再び洗浄水Ｗとして返送路５１から噴射口２５へと送られ、管路２４内の噴射される。
【００２５】
このように本実施形態では、請求項１に対応して、管路２４内を洗浄水Ｗにより圧送して骨材用材料１０１の洗浄と角取りを行う洗浄装置２と、この洗浄装置２により排出された骨材用材料１０１と洗浄水Ｗとを骨材用材料１０１と汚泥水Ｗ１とに分離する骨材分離装置３と、汚泥水Ｗ１を処理する汚泥水処理装置４とを備え、洗浄水Ｗの圧送により骨材用材料１０１の洗浄と角取りとを行うから、回転機構などの機械的駆動部分がなく、骨材用材料１０１の洗浄と角取りとを効率よく行うことができ、骨材分離装置３により洗浄装置２で処理された骨材用材料１０１と汚泥水Ｗを分離し、分離した骨材用材料１０１を骨材として使用し、分離した汚泥水Ｗ１を汚泥処理装置４により処理することができる。
【００２６】
また、このように本実施形態では、請求項２に対応して、汚泥水処理装置４は、汚泥水Ｗを汚泥Ｄと水とに分離し、この水を洗浄水Ｗとして洗浄装置２に送る洗浄水返送装置５を備えるから、汚泥を分離した水を再び洗浄水Ｗとして使用するから、洗浄水Ｗが循環し、洗浄水Ｗを無駄なく使用できる。
【００２７】
また、このように本実施形態では、請求項３に対応して、洗浄装置２は、骨材用材料１０１の投入口２６と排出口２７とを有する管路２４と、投入口２６と排出口２７の間で管路２４に設けられた直管部２２と、管路２４の投入口２６側に設けられ該管路２４内に洗浄水Ｗを噴射する噴射口２５と、この噴射口２５から洗浄水Ｗを噴射して骨材用材料１０１を排出口２７側に移送する洗浄水噴射手段たるポンプ５２とを備えるから、投入口２６から投入された骨材用材料１０１は、噴射口２５から噴射された洗浄水Ｗにより直管部２２内を排出口２７側に移送され、この間に骨材用材料１０１，１０１同士が衝突したり直管部２２内面に衝突したりして角取りがなされると共に、洗浄された後、排出口２７から排出され、骨材用材料１０１の洗浄及び角取り処理を連続的に行うことができる。
【００２８】
また、実施形態上の効果として、投入装置たるベルトコンベヤ１により、洗浄装置２にほぼ連続して骨材用材料１０１を供給することができる。また、骨材分離装置３が振動ふるい装置３１を備えるから、確実かつ簡便にそれらの分離を行うことができる。さらに、管部２１，２２，２３はフランジ接合により着脱可能であるから、部分的な効果を容易に行うことができる。また、噴射口２５は直管部２２と同一方向で該直管部２２のほぼ中心に洗浄水Ｗを噴射するから、洗浄水Ｗの運動エネルギーを管路２４内の骨材用材料１０１に伝えられ、効率よく、洗浄及び角取り処理を行うことができる。また、管路２４に交差方向の分岐管２３２を設け、この分岐管２３２の先端に排出口２７を設けたから、排出前に、管路２４を通った骨材用材料１０１と洗浄水Ｗは、閉塞した排出口側端部２４Ｔに衝突し、あるいは排出口側端部２４Ｔに溜まった骨材用材料１０１に衝突して向きが変わり、このように向きを変える際、骨材用材料１０１同士が衝突して角取りが行われると共に、骨材用材料１０１及び洗浄水Ｗの勢いが減衰するから、スムーズに排出を行うことができる。また、直管部２２の長さＬは該直管部Ｌの内径Ｄの１０倍以上であるから、直管部２２内での骨材用材料１０１の洗浄及び角取り効果を十分に得ることができる。また、管路２４には、投入口２６位置と直管部２２との間に該直管部２２に向って縮小する縮小管部２１６を有し、投入口２６位置より反排出口２７側に噴射口２５が設けられているから、骨材用原料１０１と洗浄水Ｗとの流れが混合されると共に絞られ、後の洗浄及び角取りが良好になされる。
【００２９】
図３は本発明の第２実施形態を示し、上記第１実施形態と同一部分に同一符号を付し、その詳細な説明を省略して詳述すると、同図は、噴射口２５を先細りのノズル形状にした例であり、先細りの噴射口２５により洗浄水Ｗが絞れて高速で噴射される。
【００３０】
以上、本発明の各実施例について添付図面を参照して説明してきたが、本発明は前記実施例に限定されず、種々の変形実施可能である。例えば、汚泥水を処理する汚泥水処理装置は、実施形態で示した沈殿及び凝集以外にもろ過など各種の処理方法を用いるものでもよい。また、使用する凝集剤は各種のものを用いることができる。また、水に他の添加剤を混合したものであっても、洗浄水である。
【００３１】
【発明の効果】
請求項１の発明は、管路内の骨材用材料を洗浄水の圧送により移送しながら洗浄と角取りを行う洗浄装置と、この洗浄装置により排出された骨材用材料と洗浄水とを骨材用材料と汚泥水とに分離する分離装置と、前記汚泥水を処理する汚泥水処理装置とを備えるものであり、骨材用材料の洗浄と角取りとを連続して効率よく行うことができ、洗浄水の有効利用が可能な骨材用材料の洗浄処理装置を提供することができる。
【００３２】
また、請求項２の発明は、前記汚泥水処理装置は、前記汚泥水を汚泥と水とに分離し、この水を洗浄水として前記洗浄装置に送る洗浄水返送手段を備えるものであり、洗浄水が循環し、洗浄水を無駄なく使用できる。
【００３３】
また、請求項３の発明は、前記洗浄装置は、前記骨材用材料の投入口と排出口とを有する管路と、前記投入口と排出口の間で前記管路に設けられた直管部と、前記管路の前記投入口側に設けられ該管路内に洗浄水を噴射する噴射口と、この噴射口から前記洗浄水を噴射して前記骨材用材料を前記排出口側に移送する洗浄水噴射手段とを備えるものであり、骨材用材料を連続的に洗浄及び角取り処理することができる。
【図面の簡単な説明】
【図１】本発明の第１実施形態による全体図である。
【図２】同上、洗浄装置の断面図である。
【図３】本発明の第２実施形態による洗浄装置の断面図である。
【符号の説明】
２ 洗浄装置
３ 骨材分離装置
４ 汚泥水処理装置
５ 洗浄水返送装置
２２ 直管部
２４ 管路
２５ 噴射口
２６ 投入口
２７ 排出口
５１ 返送路
５２ ポンプ（洗浄水噴射手段）
Ｓ 汚泥[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to an apparatus for cleaning a solid matter for an aggregate by performing washing and squaring processing of an aggregate material such as crushed crushed sand to obtain an aggregate for concrete.
[0002]
[Prior art]
When producing concrete aggregate from aggregate resources such as mountain crushed stones, the aggregate resources are crushed (Patent Document 1), and the crushed crushed stones and the like are washed with water to remove mud and fine powder. (Patent Document 2).
[0003]
For example, as the cleaning device, a plurality of cleaning tanks separated by an annular partition wall are arranged inside a rotary drum, and each cleaning tank is provided on an inner peripheral surface for carrying the introduced gravel and the like. There is a rotary drum type cleaning device provided with a bucket provided with a drain net and a cleaning water injection device for applying cleaning water to gravel or the like (Patent Document 3).
[0004]
By the way, aggregates produced from crushed stones have corners called edges, etc., and when concrete mixed with the aggregates is transported by a concrete mixer truck, the corners hit the inner surface of the rotating mixer, causing wear. There are problems such as occurrence.
[0005]
Therefore, as a device for cleaning and de-squaring, a cylindrical body having an inlet for gravel and a water supply pipe for cleaning water is provided on a base, and a cantilever support having a stirring blade attached to the periphery at the center thereof. A rotating main shaft is provided, and a rotating auxiliary shaft is provided on the same axis as the rotating main shaft. A pressure lid is attached to this, and fitted to an outlet of the cylindrical body. A plurality of carbide chips are built into the inner periphery of the discharge port and the periphery of the pressure lid, and the supply of washing water is controlled according to the pressure in the cylindrical body, and is supplied from the inlet provided in the cylindrical body. The input raw material such as gravel is transferred to the outlet of the cylindrical body while being stirred by the stirring blades. The raw material such as gravel is sandwiched in a gap between the superhard member incorporated into the inner periphery of the discharge port of the cylindrical body and the superhard member incorporated into the periphery of the pressing lid that rotates while being pressed. Since it is rubbed hard and hard, it is possible to process small gravel and crushed stone having a particle size of about 10 mm into fine aggregate. In addition, dead stones, clay lumps, and the like mixed in gravel and the like are completely crushed and removed, and edges of the crushed stones and the like are removed, thereby producing a rounded high-quality concrete aggregate (Patent Literature) 4) is described.
[0006]
[Patent Document 1]
JP-A-7-33491 [Patent Document 2]
JP-A-7-236896 [Patent Document 3]
JP-A-10-131241 [Patent Document 4]
Japanese Patent Application Laid-Open No. 11-138038
[Problems to be solved by the invention]
However, in the case where the stirring blade is provided in the cylindrical body as described above, a driving device for rotating and driving the stirring blade is required, so that the device is complicated, and also, after processing the crushed stone in the body, discharge is performed. Therefore, the crushed stone cannot be continuously processed, and there is a surface inferior in processing efficiency. In the washing step, a large amount of washing water is used, but the treatment of the washing water after the washing is complicated.
[0008]
Therefore, an object of the present invention is to provide an aggregate material cleaning apparatus capable of continuously and efficiently cleaning and squaring the aggregate material and effectively utilizing the wash water. I do.
[0009]
[Means for Solving the Problems]
According to the first aspect of the present invention, there is provided a cleaning apparatus for performing washing and squaring while transferring aggregate material in a pipe by cleaning water, and an aggregate material and cleaning water discharged by the cleaning apparatus. It comprises a separation device for separating the aggregate material and the sludge water, and a sludge water treatment device for treating the sludge water.
[0010]
According to the configuration of the first aspect, the cleaning and the de-squaring of the aggregate material are performed by pumping the cleaning water. Therefore, there is no mechanical driving part such as a rotating mechanism, and the cleaning and the de-squaring of the aggregate material are performed. Can be performed efficiently, the separation device separates the aggregate material and sludge water treated by the washing device, uses the separated aggregate material as aggregate, and separates the separated sludge water by the sludge treatment device. Can be processed.
[0011]
Further, the invention of claim 2 is characterized in that the sludge water treatment device is provided with a washing water return means for separating the sludge water into sludge and water and sending the water as washing water to the washing device.
[0012]
According to this configuration, the sludge water is separated into sludge and water, and the water is used again as washing water. Therefore, the washing water circulates, and the washing water can be used without waste.
[0013]
Further, the invention according to claim 3 is characterized in that the cleaning device comprises a pipe having an inlet and an outlet for the aggregate material, and a straight pipe provided in the pipe between the inlet and the outlet. Part, an injection port provided on the injection port side of the pipeline to inject washing water into the pipeline, and spraying the cleaning water from the injection port to feed the aggregate material to the discharge port side. Cleaning water injection means for transferring.
[0014]
According to the configuration of this third aspect, the aggregate material supplied from the input port is transferred to the discharge port side in the straight pipe portion by the washing water injected from the injection port, and during this time, the aggregate materials are mutually connected. It is possible to perform cornering by colliding or colliding with the inner surface of the straight pipe portion, and after being washed, discharged from the outlet, and continuously wash and square the aggregate material.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a first embodiment of the present invention will be described in detail with reference to FIGS. The present invention is an apparatus suitable for cleaning and squaring various aggregate materials such as gravel, sand, or crushed stone, crushed sand, and concrete waste collected from mountains, lands, and rivers. As shown in FIG. The cleaning apparatus includes a belt conveyor 1 serving as an input device for the aggregate material 101, a cleaning device 2 for cleaning and squaring the aggregate material 101 input by the belt conveyor 1, and a cleaning device 2. Aggregate separation device 3 for separating discharged aggregate material 101 and sludge water W1 as washing water after washing and use, and sludge water treatment for treating sludge water W1 separated by this aggregate separation device 3 The apparatus includes a device 4 and a washing water returning device 5 for sending water from which sludge has been separated by the sludge treatment device 4 to the washing device 2 as washing water W.
[0016]
As shown in FIG. 2, the cleaning device 2 includes a carry-in pipe part 21, a straight pipe part 22, and a carry-out pipe part 23, and the carry-in pipe part 21 has a large-diameter part 211 having a larger diameter than the straight pipe part 22. The pipes 21, 22 and 23 constitute a continuous pipe 24. The members of the cleaning device 2 are made of steel.
[0017]
The end of the large-diameter portion 211 is closed by a substantially semicircular lid 212, which is provided with a cylindrical injection port 25, which is inserted airtightly into the lid 212, The port 25 injects the washing water W to substantially the center of the straight pipe part 22 in the same direction as the straight pipe part 22. On the carry-out side slightly from the tip of the injection port 25, the large-diameter portion 211 is provided with branch pipes 213 and 214 in a direction intersecting with the straight pipe part 22, and the tip of the upward branch pipe 213 is used for aggregate. It is an input port 26 for the material 101. A flange 214F, which is a pipe joint, is provided at the distal end of the downward branch pipe 214, and a water stop plate 215 is fixed to the flange 214F with a bolt nut or the like to close the distal end of the branch pipe 214. On the carry-out side of the large-diameter portion 211, a reduction tube portion 216 that reduces the size to the carry-out side is provided, and on the carry-in side of the reduction tube portion 216, a short tube portion 217 having the same diameter as the straight tube portion 22 is provided. A flange 217F is provided at the tip of the short pipe portion 216. The straight pipe section 22 has flanges 22F and 22F at both ends, and the carry-in pipe section 21 and the straight pipe section 22 are detachably connected by connecting the flanges 217F and 22F with bolts and the like. The unloading pipe section 23 has a T-shape having a main pipe section 231 having the same diameter as the straight pipe section 22 and a branch pipe 232 branched in the cross direction in the middle of the main pipe section 231. Flanges 231F are provided at both ends of the 231. The flanges 22F and 231F are connected by bolts and nuts or the like, so that the straight pipe section 22 and the discharge pipe section 23 are detachably connected. Further, a water blocking plate 233 is fixed to a flange 231F at an end of the main pipe part 231 with a bolt nut or the like to close the end of the main pipe part 231. In this manner, the outlet 24T of the pipe 24 is closed by the water blocking plate 233, and the branch pipe 232 is provided in the pipe 24 on the side of the inlet 26 from the outlet 24T, The distal end of the downward branch pipe 232 is the discharge port 27, and is provided with a flange 232F. The length L of the straight pipe portion 22 is set to be 10 times or more the inner diameter D of the straight pipe portion 22 in consideration of the cleaning effect and the squaring effect. The discharge port side end 24T of the pipe 24 is closed by the water blocking plate 233, and the branch pipe 232 is provided in the pipe 24 on the side of the inlet 26 from the discharge port side end 24T.
[0018]
The hopper 11 is connected to the input port 26, and the aggregate material 101 dropped from the belt conveyor 1 falls into the hopper 11, and is guided by the hopper 11 and is input into the pipeline 24 from the input port 26. Is done.
[0019]
The aggregate separating device 3 includes a vibrating sieve device 31. The vibrating sieve device 31 has coarse and fine sieves 311 and 312 above and below, and the aggregate material 101 that has passed through the coarse sieve is a fine sieve. Classified at 312, the coarse sieve 311 captures, for example, the aggregate material 101 having a size of 10 mm or more, and the aggregate material 101 having a size of 10 mm or more is fed from the end of the slanted coarse sieve 311 to the belt conveyor 32. As a result, the aggregate material 101 that has dropped into the first storage section 34 and narrowed by the fine sieve 312 is moved from the end of the slanted fine sieve 312 to the second storage section by the belt conveyor 34. It falls to 35 and is classified. A discharge path 36 is connected to the discharge port 27, and a downstream side of the discharge path 36 is located above the vibrating sieve device 31, and the vibrating sieve device 31 supplies the aggregate material 101 and the used sludge water. W1 is supplied. Further, the sludge water W1 composed of the cleaning water W and the fine particles generated from the aggregate material 101 passes through the vibrating sieve device 31, and falls into the sludge tank 41 of the wastewater treatment device 4. Note that the sludge water W1 also includes mud attached to the aggregate material 101 before washing.
[0020]
The sludge treatment device 4 has a coagulant charging tank 42, a coagulation sedimentation tank 43, and a water storage tank 44 toward the downstream of the sludge tank 41. The sludge tank 41 is a sludge sedimentation layer, separates and discharges the settled sludge S, sends the supernatant of the sludge water W1 to a flocculant charging tank 42, and in this flocculant charging tank 42, a flocculant such as a polymer flocculant. And the sludge water W1 mixed with the coagulant is sent to the coagulation sedimentation tank 43, where the sludge mud is coagulated, precipitated and separated. The water W is sent to the water storage tank 44.
[0021]
The cleaning water returning device 5 includes a return path 51 connecting the water storage tank 44 and the injection port 25, and a pump serving as cleaning water injection means for injecting the cleaning water W of the water storage tank 44 from the injection port 25 through the return path 51. 52, and a plunger pump or the like is used as the pump 52.
[0022]
Next, driving of the cleaning apparatus will be described. The raw material 101 for aggregate, such as crushed stone, is charged into the hopper 11 by the belt conveyor 1, and is continuously supplied into the conduit 24 of the cleaning device 2 from the charging port 26. At the same time, the pump 52 is driven to inject the cleaning water W from the injection port 25 at high pressure. Then, the raw material for aggregate 101 is transferred to the carry-out port 27 side by the washing water W, and the raw materials for aggregate 101, particularly in the straight pipe portion 22 collide with each other and collide with the inner surface of the straight pipe portion 22. Then, the aggregate raw material 101 is squared and washed. In this case, the flow of the raw material for aggregate 101 and the washing water W is mixed and squeezed because the reduced tube portion 216 is provided on the carry-in side of the straight tube portion 22, and the subsequent washing and de-squaring are performed well. . In addition, by making the length of the straight pipe portion 22 equal to or more than 10 times the inner diameter D, a sufficient cleaning and squaring effect can be obtained while the straight pipe portion 22 is transferred inside the straight pipe portion 22.
[0023]
Then, the sludge water W1 obtained by sludge of the aggregate raw material 101 and the washing water W collides with the water stop plate 233 or the aggregate raw material 101 accumulated in front of the water stop plate 233, and then changes its direction. In a state where the kinetic energy is reduced, the raw material for aggregate 101 is supplied from the discharge port 27 through the discharge path 36 to the vibrating sieve device 31 and is classified into 10 mm or more and less than 10 mm, and the first and second storage sections 33, 35. In this case, the raw material 101 for aggregate that has fallen on the slanted sieves 311 and 312 falls, and the captured raw material 101 is gradually sent obliquely downward by vibration and received by the respective conveyors 32 and 34. Passed.
[0024]
On the other hand, the sludge water W1 that has passed through the vibrating sieve device 31 is separated into sludge components by the sludge water treatment device 4, and the separated water is sent again as washing water W from the return path 51 to the injection port 25, Injected in 24.
[0025]
As described above, in the present embodiment, according to the first aspect, the cleaning device 2 that performs cleaning and squaring of the aggregate material 101 by pumping the inside of the pipeline 24 with the cleaning water W, and the cleaning device 2 The washing machine includes an aggregate separating device 3 for separating the discharged aggregate material 101 and the washing water W into the aggregate material 101 and the sludge water W1, and a sludge water treatment device 4 for treating the sludge water W1. Since the cleaning and the squaring of the aggregate material 101 are performed by the water pumping, there is no mechanical driving part such as a rotating mechanism, and the cleaning and the squaring of the aggregate material 101 can be efficiently performed. The aggregate material 101 and the sludge water W that have been treated by the washing device 2 are separated by the aggregate separation device 3, the separated aggregate material 101 is used as the aggregate, and the separated sludge water W1 is separated into the sludge treatment device 4. Can be processed.
[0026]
In this embodiment, the sludge water treatment apparatus 4 separates the sludge water W into sludge D and water, and sends the water to the washing apparatus 2 as the washing water W. Since the washing water return device 5 is provided, the water separated from the sludge is used again as the washing water W. Therefore, the washing water W circulates, and the washing water W can be used without waste.
[0027]
Further, as described above, in the present embodiment, in accordance with the third aspect, the cleaning device 2 includes the conduit 24 having the input port 26 and the output port 27 of the aggregate material 101, the input port 26, and the output port. 27, a straight pipe portion 22 provided in the pipe 24, an injection port 25 provided on the inlet 26 side of the pipe 24 and injecting the washing water W into the pipe 24, Since the pump 52 is provided as a washing water injection means for injecting the washing water W to transfer the aggregate material 101 to the discharge port 27 side, the aggregate material 101 input from the input port 26 is supplied from the injection port 25. The jetted washing water W transfers the inside of the straight pipe portion 22 to the discharge port 27 side. During this time, the aggregate materials 101, 101 collide with each other or collide with the inner surface of the straight pipe portion 22 to be chamfered. And after being washed, it is discharged from the discharge port 27 and the aggregate material 101 The purification and chamfering processing can be continuously performed.
[0028]
Further, as an effect on the embodiment, the aggregate material 101 can be supplied to the cleaning device 2 almost continuously by the belt conveyor 1 serving as the charging device. Further, since the aggregate separating device 3 includes the vibration sieve device 31, it is possible to reliably and easily separate them. Furthermore, since the pipe portions 21, 22, and 23 are detachable by flange joining, partial effects can be easily achieved. Further, since the injection port 25 injects the washing water W to the substantially center of the straight pipe portion 22 in the same direction as the straight pipe portion 22, the kinetic energy of the washing water W is transmitted to the aggregate material 101 in the pipe 24. As a result, the cleaning and de-squaring can be performed efficiently. Moreover, since the branch pipe 232 in the cross direction is provided in the pipe 24 and the discharge port 27 is provided at the tip of the branch pipe 232, the aggregate material 101 and the washing water W that have passed through the pipe 24 before discharging are The direction changes by colliding with the closed outlet end 24T or colliding with the aggregate material 101 accumulated in the outlet side end 24T. Collision is performed by colliding, and the momentum of the aggregate material 101 and the washing water W is attenuated. Further, since the length L of the straight pipe portion 22 is at least 10 times the inner diameter D of the straight pipe portion L, it is possible to sufficiently obtain the effect of cleaning and squaring the aggregate material 101 in the straight pipe portion 22. Can be. In addition, the conduit 24 has a reduced pipe portion 216 that is reduced toward the straight pipe portion 22 between the input port 26 position and the straight pipe portion 22, and is located on the side opposite to the discharge port 27 from the input port 26 position. Since the injection port 25 is provided, the flows of the raw material for aggregate 101 and the cleaning water W are mixed and squeezed, so that the subsequent cleaning and squaring are performed well.
[0029]
FIG. 3 shows a second embodiment of the present invention, in which the same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. This is an example in which the cleaning water W is formed in a nozzle shape, and the cleaning water W is squeezed by the tapered injection port 25 and is injected at high speed.
[0030]
As described above, each embodiment of the present invention has been described with reference to the accompanying drawings. However, the present invention is not limited to the above embodiment, and various modifications can be made. For example, a sludge water treatment apparatus for treating sludge water may use various treatment methods such as filtration in addition to the precipitation and coagulation described in the embodiment. Various coagulants can be used. Further, even if other additives are mixed with water, it is washing water.
[0031]
【The invention's effect】
According to the first aspect of the present invention, there is provided a cleaning apparatus for performing washing and squaring while transferring aggregate material in a pipe by cleaning water, and an aggregate material and cleaning water discharged by the cleaning apparatus. It is provided with a separation device that separates the aggregate material and the sludge water, and a sludge water treatment device that treats the sludge water, and continuously and efficiently cleans and squares the aggregate material. Accordingly, it is possible to provide an apparatus for cleaning an aggregate material that can effectively use cleaning water.
[0032]
Further, the invention of claim 2 is characterized in that the sludge water treatment device is provided with a washing water return means for separating the sludge water into sludge and water and sending the water to the washing device as washing water. Water circulates, and washing water can be used without waste.
[0033]
Further, the invention according to claim 3 is characterized in that the cleaning device comprises a pipe having an inlet and an outlet for the aggregate material, and a straight pipe provided in the pipe between the inlet and the outlet. Part, an injection port provided on the injection port side of the pipeline to inject washing water into the pipeline, and spraying the cleaning water from the injection port to feed the aggregate material to the discharge port side. It is provided with a washing water jetting means for transferring, and it is possible to continuously wash and square the aggregate material.
[Brief description of the drawings]
FIG. 1 is an overall view according to a first embodiment of the present invention.
FIG. 2 is a cross-sectional view of the cleaning device according to the first embodiment;
FIG. 3 is a sectional view of a cleaning apparatus according to a second embodiment of the present invention.
[Explanation of symbols]
2 Cleaning device 3 Aggregate separation device 4 Sludge water treatment device 5 Cleaning water return device 22 Straight pipe section 24 Pipe line 25 Injection port 26 Input port 27 Drain port 51 Return path 52 Pump (wash water injection means)
S sludge
