JP2005021746A

JP2005021746A - Simple filtration device

Info

Publication number: JP2005021746A
Application number: JP2003187410A
Authority: JP
Inventors: Hiroyoshi Nakamura; 廣義中村
Original assignee: Nakamura Kensetsu KK
Current assignee: Nakamura Kensetsu KK
Priority date: 2003-06-30
Filing date: 2003-06-30
Publication date: 2005-01-27
Anticipated expiration: 2023-06-30
Also published as: JP4469142B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide a simple filtration device which is simple in constitution, can be applied anywhere, is excellent in filtration characteristics and maintenance properties, and can easily do purification treatment in a construction site etc. <P>SOLUTION: The simple filtration device 10 has a container body 11 to which suspension water is supplied, filtration bag bodies 12-15 which are formed in the shape of an approximately rectangular plate, are installed at a constant intervals in the container body 11, and have a filler inside, and a filtrate discharge tube 17 which connects the lower ends of the filtration bag bodies 12-15 and the container body 11 and discharges the filtrate outside the container body 11. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、山間地等を切り開いて形成される宅地造成地の現場や河川工事、下水工事、港湾工事、トンネル工事の現場等で発生する汚濁した懸濁水を浄化して排出させるための簡易ろ過装置に関する。
【０００２】
【従来の技術】
従来、宅地造成工事や河川工事等においては、これに伴って発生する土砂等を含む懸濁水を浄化させて排出させるための浄化処理が行なわれている。この懸濁水の浄化処理に関して、例えば以下のような技術のものが知られている。
（イ）（特許文献１）には、開口部を紐で開閉自在に形成したメッシュ状の布袋と、懸濁水の取入れ口内側管周りに前記開口部を締め付けてろ過部を形成した状態の前記布袋を収納する容器と、を備え、取入れ口内側管の先端部に前記布袋の開口部を締め付け時に係止させるフランジを設けたろ過装置が開示されている。
（ロ）（特許文献２）には、円筒状の処理槽に、発泡樹脂材と繊維状片とでマット状に構成した不織布とを合着して細片状に裁断したろ材を装入し、そのろ材のろ材層の下方には、曝気用の散気管と、ろ材の撹拌管とを設け、一方、処理槽の側壁には原水の供給口を開設し、処理槽の上縁部には溢流樋を設けてなる汚水処理用のろ過装置が開示されている。
【０００３】
【特許文献１】
特開平８−１８７４０６号公報
【特許文献２】
特開平９−３２７６９６号公報
【０００４】
【発明が解決しようとする課題】
しかしながら、上記従来の技術は以下のような課題を有していた。
（イ）（特許文献１）に記載のろ過装置は、ろ過された土砂等が布袋内に溜まるので、土砂の蓄積に伴って次第にろ過効率が低下して満杯になると水が流れなくなり、フランジ部から布袋を取り外して交換することが必要となり現場での作業能率が悪く、浄化処理を効率的に行えないという課題があった。
（ロ）（特許文献２）に記載のろ過装置はろ過された土砂を取り除く搬出装置や曝気装置を必要として大掛かりになるため、広い設置面積や電源等が確保されるような場所に限定され汎用性に乏しい上に、ろ材に土砂が詰まって目詰まりしやすくメンテナンス性に欠けるという課題があった。
本発明は上記課題を解決するもので、軽量で搬送性に優れ設置が簡単でどこでも適用でき、ろ過特性やメンテナンス性に優れ、工事現場等で容易に浄化処理を行うことができるとともに、折り畳み自在で収納に場所を取らない簡易ろ過装置を提供することを目的とする。
【０００５】
【課題を解決するための手段】
請求項１に記載の簡易ろ過装置は、懸濁水を供給される容器体と、前記容器体の内部に渡設された略矩形板状に形成され内部に充填材が内蔵された複数のろ過袋体と、前記ろ過袋体の下端と接続して前記容器体の外部へろ過水を排出するためのろ過水排出管と、を有して構成されている。
この構成によって以下の作用が得られる。
（ａ）容器体に懸濁水を供給するだけで、ろ過袋体の表面でろ過された処理水がろ過水排出管から排出できるので、狭い立地条件の工事現場等でも簡単に設置することができ、作業性が改善される。
（ｂ）ろ布で漉し取られた土砂等は容器底部に溜り、ろ過袋体内には蓄積しないので、ろ布によるろ過性能の時間変化が少なく浄水処理性に優れている。
（ｃ）容器内に蓄積された土砂は容器上部の開口部から容易に排出させることができ作業性やメンテナンス性に優れている。
（ｄ）構造が簡単でしかも電源等を要せず動力を用いることなくヘッド差だけで懸濁水のろ過が行なわれるので、経済性と省エネルギー性や汎用性に優れている。
（ｅ）ろ過袋体を容器内に並列に配置しているので、単位スペース当たりのろ過面積を大きくして処理効率を高めることができる。
（ｆ）ろ過水排出管に水貯留袋を接続した場合には、ろ過袋体から排出されるろ過水を溜めることができる。この水貯留袋を足踏みなどで圧迫することによりろ過水をろ過袋体内に逆流させ、ろ布の表面からろ過水を逆方向に滲みださせてろ布の逆洗浄を行うことができ、洗浄の操作性に優れている。
【０００６】
ここで、ろ布の素材としては、例えば合成繊維や天然繊維からなる織布又は不織布が適用できる。合成繊維には通常、太さが０．１〜２０μｍ程度のポリアミド、ポリエステル、ポリオレフィン、ポリビニルアルコール系、ポリフルオロエチレン、ポリアクリロニトリル、酢酸ビニル、四フッ化エチレンなどのものが使用できる。なお、前記繊維の各交点の所定個所を加熱により融着したり接着剤を用いて接着したりして固定し、全体を補強すると共に、懸濁水中の固体粒子の大きさに応じてその捕捉率を調整するようにしてもよい。また、ろ布の素材を、懸濁水中の帯電した固体粒子の付着を妨げるイオン交換樹脂で構成したり、ろ布部の表面をイオン交換樹脂で部分的に被覆したりして、固体粒子の付着を抑制して、ろ過処理中の目詰まりを防ぐようにすることも可能である。
略矩形板状のろ過袋体内に内蔵される充填材は、水透過性と形状保持性に優れたヘチマロン（登録商標）等の合成樹脂製や金属製等のクッション状や、多孔板状、格子状、フレーム状のものが適用でき、これによって、容器体内に立設されるろ過袋体の形状を保持させ、水透過性を確保して、所定のろ過性能を発揮させることができる。
ろ過袋体はその対向する２辺を縫製又は接着手段で容器体内側の側部に固定され、４〜１０枚のろ過袋体同士が例えば３０〜２００ｍｍ、好ましくは５０〜１５０ｍｍの間隔で互いに平行になるように配置されている。これは懸濁水の汚濁度や土砂等の種類にもよるが、この間隔が５０ｍｍより少なくなるにつれ、容器体内に供給される懸濁水がろ過袋の面に沿った流れが妨げられて、ろ布表面に土砂等が付着し易く目詰まりする傾向が現れ、逆にこの間隔が１５０ｍｍを越えるにつれ容器体内に配置されるろ過袋体の数が少なくなってろ過面積が減り、ろ過効率が低下する傾向が現れ、これらの傾向は３０ｍｍより小さくなるか、２００ｍｍを越えるとさらに顕著になるからである。
【０００７】
ろ過水排出管は、塩化ビニルや、軟質ビニル等の合成樹脂からなりその一端部側がろ過袋体の縁部に接着手段や縫製手段を用い挿入された状態で固定され、他端部側が容器体底部側の側部等から外部に向けて貫通した状態に固定されており、容器体内に平行配置された各ろ過袋体のろ布でろ過された処理水が外部に自然放水できるようになっている。なお、このろ過水排出管の容器体側部等に藁やフェルト等の水が透過できる芯材を予め充填配置しておき、ろ過水排出管が圧迫されて潰されても、ここで閉塞されて処理水の流れが止まることがないようすることもできる。
【０００８】
請求項２に記載の簡易ろ過装置は、請求項１に記載の発明において、前記充填材が網状、塊状、クッション状、格子枠状の材料のうち少なくとも１つ以上から形成されて構成されている。
この構成によって、請求項１の作用の他、以下の作用が得られる。
（ａ）ろ過袋体内に内蔵される充填材が網状、塊状、クッション状、格子枠状の材料のうち少なくとも１つ以上から形成されているので、容器体内に懸濁水が多量に供給されてもろ過袋体の形状を適正状態に保持させ、ろ過性能の劣化を防止して効率的な浄化処理を行うことができる。
ここで、充填材としては、前述の水透過性のよい格子状や多孔状、立体網状、クッション状などに形成された素材のものが好適に用いられる。ろ過袋体に内蔵される充填材の厚みは５〜３０ｍｍ程度とするのが好ましい。これはろ過袋体や容器体のサイズや、ろ布のろ過特性などにもよるが、厚みが５ｍｍより薄くなるにつれ、袋状に形成したろ布同士が密着して中に処理水の流路を形成させるのが困難になる傾向が現れ、逆に３０ｍｍを超えるにつれ、容器体内に内蔵できるろ過袋体の個数が減ったり、ろ過袋体間に適正な間隔を保持させたりするのが困難となって、ろ過効率が低下する傾向が生じるからである。その他、水透過性を有する充填材の素材としてはウレタン樹脂などの合成樹脂や金属線を編んで構成した網状、メッシュ状のもの等の他に、合成樹脂、セラミックス、金属などからなる３次元網目構造を有して形成されたバルクのものや、連通気孔や溝部を有した多孔質体のもの、棒状体を間隔をおいて積層させ格子状に形成したものなどが該当する。
【０００９】
請求項３に記載の簡易ろ過装置は、請求項１又は２に記載の発明において、
前記容器体が防水性の布帛や合成樹脂製のシート、ターボリン等の可撓性シートからなり、上部が開口した有底の箱状又は円筒状に形成されて構成されている。
この構成によって、請求項１又は２の作用の他、以下の作用が得られる。
（ａ）容器体が可撓性シートからなるので、軽量で搬送性に優れるとともに、使用しない場合には全体を折り畳むことができ、狭い収納場所でもコンパクトに収納でき、利便性に優れている。
（ｂ）容器体がコンパクトになるので、多数の容器体の持ち運びが容易にでき、突然の増水時等には現場に持ち込んで迅速に対処でき、機動性に優れている。
（ｃ）容器体が可撓性シートからなるので、懸濁水を注入すると懸濁水の自重で完全に拡開しろ過効率を高めることができる。
ここで、容器体は、防水性の可撓性シートを縫製又は接着して箱型や円筒状等に形成される。この容器体は、全体を折り畳むことにより嵩張ることなく収納効率を高めることができる。
【００１０】
請求項４に記載の簡易ろ過装置は、請求項１乃至３の内いずれか１項に記載の発明において、前記容器体の内底面と前記ろ過袋体の下端との間に１０〜１５０ｍｍの間隔をあけて懸濁物貯留部が形成されて構成されている。
この構成によって、請求項１乃至３の内いずれか１項の作用の他、以下の作用が得られる。
（ａ）容器体の内底面と前記ろ過袋体の下端との間に所定の懸濁物貯留部が所定の間隔で形成されているので、ろ布の表面で漉し取られた土砂が容器体の底部に沈殿させておくことができ、ろ過袋体の上部が土砂で覆われることがなく、ろ過面積を確保でき、安定的に浄水処理を行うことができる。
ここで、懸濁物貯留部の間隔が１０ｍｍより少ないと、十分な量の土砂を貯留することができなくなり簡易ろ過装置で処理できる浄水処理量が低下する。逆に１５０ｍｍを越えると、貯留される土砂等の量が増えて浄水処理後における移動や懸濁物の排出等の取り扱いが不便になるので好ましくない。
【００１１】
請求項５に記載の簡易ろ過装置は、請求項１乃至４の内いずれか１項に記載の発明において、前記容器体の側面に棒状又は細長板状、面板状、面格子状の補強部材が水平方向及び／又は垂直方向に配設されて構成されている。
この構成によって、請求項１乃至４の内いずれか１項の作用の他、以下の作用が得られる。
（ａ）容器体の側面に補強部材が配設されているので、容器体内が懸濁水で満たされても、全体がその重量で膨らんで変形し懸濁水が溢出したりするのを防止でき、各ろ過袋体間の間隔を一定に保持させてろ過効率が低下するの防止して、適正状態に維持させることができる。
（ｂ）補強部材が設けられているので、容器体の折り畳みやその後の展開が容易になり取り扱い性に優れており、現場での設置作業が迅速に行える。
（ｃ）ろ過装置が自重で変形しないので道路側溝等に容易にはめ込むことができ、道路側溝内の水をろ過するろ過装置として好適に使用できる。
ここで、補強部材としては、比較的硬質の合成樹脂や、アルミ合金やスチール等の金属製の棒状体や、細長板状体、面板状体、面格子状体のものなどが適用でき、容器体の側部に水平方向や垂直方向に係止部材を介して取り付けたり、又は接着剤等を介したりして直接貼着されて用いられる。
【００１２】
請求項６に記載の簡易ろ過装置は、請求項１乃至５の内いずれか１項に記載の発明において、前記容器体の上部の対向する上辺部に吊り手部が設けられて構成されている。
この構成によって、請求項１乃至５の内いずれか１項の作用の他、以下の作用が得られる。
（ａ）上辺部に吊り手部が設けられているので、全体が折り畳まれた簡易ろ過装置を容易に持ち運ぶことができ、迅速に現場に配置して緊急時にも対応でき、取り扱い性に優れている。
（ｂ）上辺部の吊り手同士をロープなどで縛って連結することができ、懸濁水を満たすことによって広がりやすい容器体の開口部を規制して、内部のろ過袋体の間隔を適正に維持させることができる。
【００１３】
請求項７に記載の簡易ろ過装置は、請求項１乃至６の内いずれか１項に記載の発明において、前記ろ布の表面が、シリコン、ウレタン、四フッ化エチレン、アクリル等の合成樹脂の微粒子を集合させて粒子間に流路を形成したスクラム構造により被覆されて構成されている。
この構成によって、請求項１乃至６の内いずれか１項の用の作用の他、以下の作用が得られる。
（ａ）ろ布が合成樹脂の微粒子からなるスクラム構造を有した層で被覆されているので、合成樹脂の微粒子が敷き詰められて形成されたその表面部で懸濁水中の粒子を確実に捕捉して、内部への侵入を阻止でき、目詰まりを効果的に防止することができる。
（ｂ）水分子や水に溶解したミネラル分等は容易に被覆層を透過するので、ミネラル分を含む清水を大量に得ることができる。
（ｃ）四フッ化エチレン（商品名テフロン（登録商標））やこれをコーティング材として用いた場合には、懸濁水中の固形分に対する付着性が少なく、対目詰まり性に優れている。
ここでスクラム構造は、溶剤中に分散させたポリウレタン樹脂等の合成樹脂の１μｍ〜２０００μｍ粒径の微粒子をろ布部上に吹き付けることにより微粒子同士が網目状に接合した層を形成させたり、繊維質のものに微粒子を混合攪拌して分散させ、繊維質又は微粒子を部分的に融着させたりすることで形成できる。
【００１４】
請求項８に記載の簡易ろ過装置は、請求項７に記載の発明において、前記ろ布の表面に被覆された前記スクラム構造の層厚が前記ろ布の層厚に対して１０〜３０％であるように構成されている。
この構成によって、請求項７の作用の他、以下の作用が得られる。
（ａ）スクラム構造の層厚が特定範囲になっているので、ろ過処理量とその目詰まり特性とをバランスさせ、造成現場等の懸濁水等の大量処理を効率的に行なうことができる。
（ｂ）微細粒子に対しても目詰まりを少なくできるので、湖、河川、海等で発生するアオコ等のプランクトンの分散除去にも使用できる。
ここで、ろ布の層厚に対するスクラム構造の層厚は懸濁水の固形分濃度やその種類などにもよるが、１０％より少なくなるとろ布部においてろ過される固形分の付着性が大きくなる傾向が表れ、短期間で逆洗処理が必要となるので好ましくない。逆に３０％を超えるとろ過処理流量が低下する傾向にあるので好ましくない。
【００１５】
請求項９に記載の簡易ろ過装置は、請求項１乃至８の内いずれか１項に記載の発明において、前記容器体がその底部に前記ろ過袋体に連通されたろ過水貯留部を備え、前記ろ過水排出管が前記ろ過水貯留部に接続されて構成されている。
この構成によって、請求項１乃至８の内いずれか１項の作用に加えて、以下の作用を有する。
（ａ）容器体の底部にろ過水を一定量貯留できるろ過水貯留部が設けられているので、各ろ過袋体から個別にろ過水を取り出す場合のような取り出し水量のばらつきがなく、ろ過水をろ過水排出管から安定した水量で排出できる。
（ｂ）ろ過水排出管をバルブなどで閉止したり、管の部分を折り曲げたりして、水が漏れないように維持させた後、ろ過水貯留部内を加圧し、ろ過水貯留部内のろ過水をろ過袋体に逆流させることで、ろ布上の固形分を除去して洗浄することができ、メンテナンス性に優れている。
ここで、ろ過水貯留部は容器体の全内容積に対してその２０分の１から１０分の１の内容積を有して底部に設けられたろ過水を貯留するタンクであり、バルブなどで開閉されるろ過水排出管が接続されて用いられる。ろ過水貯留部の内容積が容器体の内容積の２０分の１より少なくなると、排出するろ過水の水量の均一化が困難となる傾向が表れ、逆に１０分の１を超えると相対的にろ過袋体の大きさが制限されて、ろ過処理量が大きく減少する傾向が生じるので好ましくない。
【００１６】
【発明の実施の形態】
（実施の形態１）
本発明の実施形態１に係る簡易ろ過装置について説明する。
図１は実施の形態１の簡易ろ過装置の斜視図であり、図２はその平面図であり、図３は側面断面図であり、図４は正面断面図であり、図５は簡易ろ過装置を折り畳んだ状態の斜視図である。
図１〜４において、１０は実施の形態１の簡易ろ過装置、１１は懸濁水がその上部の開口部１１ａから供給され防水性の布帛やターボリン等の可撓性シートを素材として各隅部が両辺端部を縫着や接着で柱状に形成された保持部１１ｂで略箱状に形成された容器体、１２〜１５は容器体１１内にその略矩形板状の対向する２辺側が縫着や接着等で容器体１１の側壁の指示部１１ｂ´で支持され互いに手の差し入れられるぐらいの間隔Ｄをおいて渡設されたろ過袋体、１６は合成樹脂製の線状物を絡ませ所々を溶着させてクッション状に形成された手板状でクッション状の充填材、１７はろ過袋体１２〜１５の下端部側にその一端部側が挿入され他端部が容器体１１の側部から外に引き出されて配置されたろ過水排出管である。
容器体１１はその内側部において、各ろ過袋体１２〜１５のそれぞれの対向する２辺側端部を縫製して、ろ過袋体１２〜１５が互いに５０〜１５０ｍｍ程度の間隔Ｄを有するように平行に渡設されている。なお、容器体１１の内底面とろ過袋体１２〜１５の下端との間に１０〜１５０ｍｍの懸濁物貯留部が間隔Ｈを設けて、ここに懸濁物を溜めることができるようにしている。
【００１７】
容器体１１の側面には袋状に形成された棒状の収納部１１ｃが２箇所上下平行に水平配置されており、硬質の合成樹脂からなる棒状の補強部材１１ｃ´がここに挿入されて固定されている。なお、容器体１１の上部には吊り手１１ｅが設けられており、簡易ろ過装置１０の運搬の際の取り扱いを容易にすると共に、折り畳まれた簡易ろ過装置をロープ等で縛って梱包する際等の利便性を高めている。
ろ過袋体１２〜１５は、合成繊維や天然繊維からなる織布又は不織布からなるろ布を縫製して略矩形板状に形成されている。その内部には充填材１６が内蔵されて袋状に密閉され、下端部側にろ過水排出管１７が挿入固定されている。
ろ過水排出管１７は防水性の布帛やシート、合成樹脂管等でパイプ状やチューブ状に形成され、容器体１１の側部孔１１ｄを貫通して配置され、容器体１１内部のろ過袋体１２〜１５で浄化された処理水が外部に排出されるようになっている。
簡易ろ過装置１０は図１に示すように広げて設置した時の高さが２００〜５００ｍｍ、縦幅が３００〜２０００ｍｍ、横幅が２００〜１０００ｍｍの略箱状に形成され、収納時や持ち運び時には図５に示すように正面側から折り畳んで、ロープ１８等で縛ることにより全体をコンパクトにでき、収納性や取り扱い性に優れている。
【００１８】
次に、以上のように構成された簡易ろ過装置１０を用いて懸濁水の浄化処理を行う方法について説明する。
まず、図５に示すように折り畳んだ状態の簡易ろ過装置１０を、図１に示すように工事現場などの懸濁水発生箇所に展開して配置すると保持部１１ｂと支持部１１ｂ´により自立する。つぎに容器体１１の開口部１１ａから懸濁水を供給して、懸濁水の水面を上昇させる。
このとき、容器体１１には補強部材１１ｃ´が設けられているので、容器体１１の側面がその水圧で膨出するのが抑制され、各ろ過袋体１２〜１５が適正位置に保持される。こうして、ろ過袋体１２〜１５の外側からその内部に内蔵された充填材１６側に向かって水圧が付与されて透過水流が発生し、ろ布の表面で懸濁水中の固形分がろ過されて容器体１１の底部に沈降する。
一方、ろ布面で浄化された処理水が充填材１６の隙間を通ってろ過袋体１２〜１５の下端側に設けられたろ過水排出管１７から外部に排出される。
こうして、簡易ろ過装置１０に供給される懸濁水の自重だけで効率的に水処理を行うことができる。
容器体１１内に所定量の土砂等が蓄積した時は、吊り手１１ｅ等を用いて容器体１１を反転させ、内部に貯留させた土砂を所定の場所等に排出して、この簡易ろ過装置１０を再度浄化処理に用いることができる。
また、浄化処理が終了した時には、空の簡易ろ過装置１０を折り畳んでコンパクトにして、ろ過装置を収納場所に多数収納させることができる。
なお、ろ過水排出管１７を袋状などに形成されたろ過水タンクに接続して、ろ過水を溜めておき、このろ過水タンクを加圧して、ろ過水をろ過袋体１２〜１５に逆流させることもできる。これによって、ろ過袋体１２〜１５に表面に付着した固形分を有効に除去して、目詰まりさせることなく使用できる。
【００１９】
実施の形態１の簡易ろ過装置１０は以上のように構成されているので以下の作用を有する。
（ａ）ろ布で漉し取られた土砂等は容器体１１の底部に溜り、ろ過袋体１２〜１５には蓄積しないので、ろ布によるろ過性能の時間変化が少なく浄水処理性に優れている。
（ｂ）各ろ過袋体１２〜１５の間隔Ｄが５０〜１５０ｍｍあけられているので、ろ過中等にろ布表面の目詰まりを防ぐためにブラシを挿入してその毛先で掃引して、ろ布表面に付着した付着層を除去しろ過効率を維持でき、メンテナンス性に優れている。
（ｃ）容器体１１内に蓄積された土砂は容器体１１上部の開口部１１ａから容易に排出させることができ作業性やメンテナンス性に優れている。
（ｄ）ろ過袋体１２〜１５内に充填材１６が内蔵されているので、容器体１１内に懸濁水が多量に供給されてもその形状を適正状態に保持させ、ろ過性能の劣化を防止して効率的な浄化処理を行うことができる。
（ｅ）容器体１１が可撓性シートからなるので、使用しない場合には全体を折り畳むことができ、狭い収納場所でもコンパクトに収納できるとともに、保持部１１ｂや支持部１１ｂ´により使用時には自立するので作業性に優れる。
（ｆ）軽量で持ち運びが容易にでき、突然の増水時等には現場に持ち込んで迅速に対処でき、機動性に優れている。
（ｇ）容器体１１の内底面に懸濁物貯留部の間隔Ｈが形成されているので、ろ布の表面で漉し取られた所定量の土砂を容器体１１の底部に沈殿させておくことができ、ろ過袋体１２〜１５の上部が土砂で覆われることがなく、ろ過面積を確保でき、安定的に浄水処理を行うことができる。
（ｈ）容器体１１の側面に補強部材１１ｃ´が配設されているので、容器体１１内が懸濁水で満たされても、補強部材１１ｃ´側がその重量で膨らむことがなく、各ろ過袋体間の間隔を一定に保持させてろ過効率が低下するの防止できる。
（ｉ）動力を用いることなくヘッド差だけで懸濁水のろ過が行なわれるので、省エネルギー性に優れている。
（ｊ）懸濁水が供給される容器体１１に気泡発生器や曝気装置等を配置することも容易にでき、殺菌や酸素富化などの二次的な水処理を行なって、種々の用途や目的に対応した利便性を付加することもできる。
（ｋ）上辺部に吊り手１１ｅが設けられているので、全体が折り畳まれた簡易ろ過装置を容易に持ち運ぶことができ、迅速に現場に配置して緊急時にも対応でき、取り扱い性に優れている。
（ｌ）簡易ろ過装置１０が直方体状に形成されるので、道路の側溝状の部分に嵌め込んで安定した状態に保持して、浄化処理を行うことも可能である。
【００２０】
（実施の形態２）
本発明の実施形態２に係る簡易ろ過装置について説明する。
図６は実施の形態２の簡易ろ過装置の斜視図である。
図６において、２０は実施の形態２の簡易ろ過装置、２１は懸濁水がその上部の開口部２１ａから供給され防水性の布帛やターボリン等の可撓性シートを素材として略底付き円筒状に形成された容器体、２２〜２５は容器体２１内にその略矩形板状の対向する２辺側が容器体２１の周壁に支持部２１ｂ´で支持されて渡設され充填材が内蔵されたろ過袋体である。
なお、実施の形態２の簡易ろ過装置２０は容器体２１が略円筒状に形成されている点と、ろ過袋体２２〜２５のろ布の構造の点とで、実施の形態１のものと異なっているが、その他の構成は略同様であるので、これらについては同一の符号を付してその説明を省略する。
図示するように、容器体２１はその上部が開口した開口部２１ａと底部２１ｂを有した直径が約４００〜２０００ｍｍ、高さが３００〜２０００ｍｍの略円筒状に形成され、ろ過袋体２２〜２５にそれぞれ接続されたろ過水排出管１７がその側部の下端部側に突出して設けられている。
ろ過袋体２２〜２５のろ布はその表面が、１μｍ〜２０００μｍ粒径のポリウレタン樹脂等の粒子をろ布上に吹き付けて粒子を集合させて粒子間に流路を形成したスクラム構造により被覆され、そのスクラム構造の層厚はろ布の厚みの１０〜３０％にしている。
【００２１】
実施の形態２の簡易ろ過装置２０は以上のように構成されているので実施の形態１の作用に加えて以下の作用を有する。
（ａ）ろ布が合成樹脂の微粒子からなるスクラム構造を有した層で被覆されているので、合成樹脂の微粒子が敷き詰められて形成されたその表面部で懸濁水中の粒子を確実に捕捉して、内部への侵入を阻止でき、目詰まりを効果的に防止することができる。
（ｂ）スクラム構造の層厚が適正範囲に設定されているので、ろ過処理量とその目詰まり特性とをバランスさせ、造成現場等の懸濁水等の大量処理を効率的に行なうことができる。
（ｃ）特に四フッ化エチレン（商品名テフロン（登録商標））を用いた場合には、懸濁水中の固形分に対する付着性が少なく、対目詰まり性に優れている。
（ｄ）容器体２１が円筒形状に形成されているので、懸濁水が注ぎ込まれるマンホールなどの場所にも好適に簡易ろ過装置２０を適用することができる。また、円筒形状なので大容量にも耐えることができる。
【００２２】
（実施の形態３）
本発明の実施形態３に係る簡易ろ過装置について説明する。
図７は実施の形態２の簡易ろ過装置の斜視図であり、図８はその要部断面図である。
図７及び図８において、３０は実施の形態３の簡易ろ過装置、３１は懸濁水がその上部から供給される略底付き直方体状の箱型に形成された容器体、３２〜３６は容器体３１内にその略矩形板状の対向する２辺側が縫製手段や接着手段で支持されて渡設され充填材１６が内蔵され下端面が全面又は所定箇所開放されたろ過袋体、３７は容器体３１の底部に各ろ過袋体３２〜３６の下部が連通して形成されたろ過水貯留部、３８はろ過水貯留部３７に接続されたろ過水排出管である。
なお、実施の形態３の簡易ろ過装置３０は容器体３１の底部にろ過水貯留部３７を備え、このろ過水貯留部３７にろ過水排出管３８が接続されている点で、実施の形態１のものと異なっているが、その他の構成は略同様であるので、これらについては同一の符号を付してその説明を省略する。
図示するように、容器体３１はその上部が開口した箱型に形成され縦横の長さが約４００〜２０００ｍｍ、高さが３００〜２０００ｍｍの直方体状に形成されている。容器体３１に渡設されるろ過袋体３２〜３６はそれぞれの下部がろ過水貯留部３７に縫製手段や接着手段、パイプ連結手段などにより連通した状態に配置される。なお、ろ過水貯留部３７の上部をなす部分とろ過袋体３２〜３６とを一枚のろ布で構成して、このろ布を所定長さで繰り返し折り返した状態で容器体３１内の側部及びその下部に取り付けて、このようなろ過袋体３２〜３６とろ過水貯留部３７を構成させることもできる。
【００２３】
実施の形態３の簡易ろ過装置３０は以上のように構成されているので実施の形態１の作用に加えて以下の作用を有する。
（ａ）容器体３１の底部にろ過水貯留部３７が設けられているので、ろ過袋体３２〜３６でろ過されたろ過水をろ過水排出管３８から安定した水量で排出でき、ろ過処理の効率に優れている。
（ｂ）ろ過水排出管３８をバルブなどで閉止したり、この管の部分を折り曲げたりして、水が漏れないように維持させた後、ろ過水貯留部３７内を加圧し、ろ過水貯留部３７内のろ過水をろ過袋体３２〜３６に逆流させ容器体３１を上方から加圧し、ろ過水貯留部のろ過水をろ過袋体に逆流させ、ろ布上の固形分を除去洗浄でき、メンテナンス性に優れている。
【００２４】
（実施の形態４）
本発明の実施形態４に係る簡易ろ過装置について説明する。
図９は実施の形態４の簡易ろ過装置の斜視図である。
図９において、４０は実施の形態４の簡易ろ過装置、４１は懸濁水がその上部の開口部４１ａから供給される略底付き円筒状に形成された容器体、４２は充填材を内蔵して略矩形板状に形成され、その一端辺側が円筒状の容器体４１の中心部に配置された中心支持体４３に連設されて放射状に配列された複数のろ過袋体である。
なお、実施の形態４の簡易ろ過装置４０は略円筒状の容器体４１にろ過袋体４２が放射状に複数配列されている点で、実施の形態２のものと異なっているが、その他の構成は略同様であるので、これらについては同一の符号を付してその説明を省略する。
図示するように、容器体４１はその上部が開口して略円筒状に形成され、容器体４１内に放射状に配列された各ろ過袋体４２にそれぞれ接続されたろ過水排出管１７がその側部の下端部側に突出して設けられている。
なお、中心支持体４３を円筒パイプ状に形成して、各ろ過袋体４２の側壁部それぞれと連通するように配置して、中心支持体４３の底部に一本のろ過水排出管を取り付け、これによって各ろ過袋体４２でろ過されたろ過水を集合させて外部に排出させることもできる。
【００２５】
実施の形態４の簡易ろ過装置４０は以上のように構成されているので実施の形態２の作用に加えて以下の作用を有する。
（ａ）円筒状に形成された容器体４１の中にろ過袋体４２が放射状に配列されるので、懸濁水を保持する際の安定性に優れている。
（ｂ）簡易ろ過装置４０を安定配置できるので、供給される懸濁水の流量が多い場合でも浄化処理が容易に行える。
【００２６】
【発明の効果】
請求項１に記載の簡易ろ過装置によれば、以下の効果が得られる。
（ａ）容器体に懸濁水を供給するだけで、ろ過袋体の表面でろ過された処理水がろ過水排出管から排出できるので、狭い立地条件の工事現場等でも簡単に設置し、環境汚染を防止でき作業性に優れる。
（ｂ）ろ布で漉し取られた土砂等は容器底部に溜り、ろ過袋体内には蓄積しないので、ろ布によるろ過性能の時間変化が少なく浄水処理性に優れている。
（ｃ）容器内に蓄積された土砂は容器上部の開口部から容易に排出させることができ作業性やメンテナンス性に優れている。
（ｄ）構造が簡単でしかも電源等を要せず動力を用いることなくヘッド差だけで懸濁水のろ過が行なわれるので、経済性と省エネルギー性や汎用性に優れている。
（ｅ）ろ過袋体を容器内に並列に配置できるので、単位スペース当たりのろ過面積を大きくして処理効率を高めることができる。
【００２７】
請求項２に記載の簡易ろ過装置によれば、請求項１の効果の他、以下の効果が得られる。
（ａ）ろ過袋体内に充填材が配置されているので、容器体内に懸濁水が多量に供給されてもろ過袋体の形状を適正状態に保持させ、ろ過性能の劣化を防止して効率的な浄化処理を行うことができる。
【００２８】
請求項３に記載の簡易ろ過装置によれば、請求項１又は２の効果の他、以下の効果が得られる。
（ａ）容器体が可撓性シートからなるので、軽量で搬送性に優れるとともに、使用しない場合には全体を折り畳むことができ、コンパクトに収納でき、利便性に優れている。
【００２９】
請求項４に記載の簡易ろ過装置によれば、請求項１乃至３の内いずれか１項の効果の他、以下の効果が得られる。
（ａ）容器体の内底面と前記ろ過袋体の下端との間に所定の懸濁物貯留部が形成されているので、ろ布の表面で漉し取られた土砂を容器体の底部に沈殿させ、ろ過袋体が土砂で覆われることがなく、ろ過面積を確保でき、安定的に浄水処理を行うことができる。
【００３０】
請求項５に記載の簡易ろ過装置によれば、請求項１乃至４の内いずれか１項の効果の他、以下の効果が得られる。
（ａ）全体がその重量で膨らんで変形したりするのを防止でき、各ろ過袋体間の間隔を一定に保持させてろ過効率に優れる。
（ｂ）補強部材が設けられているので、容器体の折り畳みやその後の展開が容易になり取り扱い性に優れており、現場での設置作業が迅速に行える。
【００３１】
請求項６に記載の簡易ろ過装置によれば、請求項１乃至５の内いずれか１項の効果の他、以下の効果が得られる。
（ａ）上辺部に吊り手部が設けられているので、全体が折り畳まれた簡易ろ過装置を容易に持ち運ぶことができ、迅速に現場に配置して緊急時にも対応でき、取り扱い性に優れている。
【００３２】
請求項７に記載の簡易ろ過装置によれば、請求項１乃至６の内いずれか１項の用の効果の他、以下の効果が得られる。
（ａ）スクラム構造を有しているので、合成樹脂の微粒子が敷き詰められて形成されたその表面部で懸濁水中の粒子を確実に捕捉して、内部への侵入を阻止でき、目詰まりを効果的に防止し、ろ過効率に優れる。
（ｂ）水分子や水に溶解したミネラル分等は容易に被覆層を透過するので、ミネラル分を含む清水を大量に得ることができる。
【００３３】
請求項８に記載の簡易ろ過装置によれば、請求項７の効果の他、以下の効果が得られる。
（ａ）スクラム構造の層厚が特定範囲になっているので、ろ過処理量とその目詰まり特性とをバランスさせ、造成現場等の懸濁水等の大量処理を効率的に行なうことができる。
（ｂ）微細粒子に対しても目詰まりを少なくできるので、湖、河川、海等で発生するアオコ等のプランクトンの分散除去にも使用できる。
【００３４】
請求項９に記載の簡易ろ過装置によれば、請求項１乃至８の内いずれか１項の効果に加えて、以下の効果を有する。
（ａ）容器体の底部にろ過水を一定量貯留できるろ過水貯留部が設けられているので、各ろ過袋体から個別にろ過水を取り出す場合のような取り出し水量のばらつきがなく、ろ過水をろ過水排出管から安定した水量で排出できる。
（ｂ）ろ過水排出管をバルブなどで閉止したり、管の部分を折り曲げたりして、水が漏れないように維持させた後、ろ過水貯留部内を加圧し、ろ過水貯留部内のろ過水をろ過袋体に逆流させることで、ろ布上の固形分を除去して洗浄することができ、メンテナンス性に優れている。
【図面の簡単な説明】
【図１】実施の形態１の簡易ろ過装置の斜視図
【図２】実施の形態１の簡易ろ過装置の平面図
【図３】実施の形態１の簡易ろ過装置の側面断面図
【図４】実施の形態１の簡易ろ過装置の正面断面図
【図５】実施の形態１の簡易ろ過装置を折り畳んだ状態を示す斜視図
【図６】実施の形態２の簡易ろ過装置の斜視図
【図７】実施の形態３の簡易ろ過装置の斜視図
【図８】実施の形態３の簡易ろ過装置の側面断面図
【図９】実施の形態４の簡易ろ過装置の斜視図
【符号の説明】
１０実施の形態１の簡易ろ過装置
１１容器体
１１ａ開口部
１１ｂ保持部
１１ｂ´ 支持部
１１ｃ収納部
１１ｃ´ 補強部材
１１ｄ側部孔
１１ｅ吊り手
１１ｆ懸濁物貯留部
１２〜１５ろ過袋体
１６充填材
１７ろ過水排出管
２０実施の形態２の簡易ろ過装置
２１容器体
２１ａ開口部
２１ｂ底部
２２〜２５ろ過袋体
３０実施の形態３の簡易ろ過装置
３１容器体
３２〜３６ろ過袋体
３７ろ過水貯留部
３８ろ過水排出管
４０実施の形態４の簡易ろ過装置
４１容器体
４１ａ開口部
４２ろ過袋体
４３中心支持体[0001]
BACKGROUND OF THE INVENTION
The present invention is a simple filtration for purifying and discharging polluted suspended water generated on the site of a residential land development site formed by opening up a mountainous area, etc., river construction, sewage construction, port construction, tunnel construction etc. Relates to the device.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, in residential land development and river construction, purification treatment for purifying and discharging suspended water including earth and sand generated in association with this is performed. For example, the following technology is known for the purification treatment of suspended water.
(I) (Patent Document 1) includes a mesh-like cloth bag having an opening that can be freely opened and closed with a string, and the filtration portion formed by tightening the opening around the suspension water intake inner tube. And a container for storing a cloth bag, and a filtering device is disclosed in which a flange that locks the opening of the cloth bag at the time of tightening is provided at the distal end portion of the intake pipe.
(B) (Patent Document 2) is charged with a filter medium cut into a strip by joining a nonwoven fabric composed of a foamed resin material and a fibrous piece into a cylindrical treatment tank. In the lower part of the filter medium layer of the filter medium, an aeration pipe for aeration and an agitation pipe for the filter medium are provided, while a supply port for raw water is opened on the side wall of the process tank, A filtration apparatus for wastewater treatment provided with an overflow basin is disclosed.
[0003]
[Patent Document 1]
JP-A-8-187406
[Patent Document 2]
Japanese Patent Laid-Open No. 9-327696
[0004]
[Problems to be solved by the invention]
However, the above conventional technique has the following problems.
(B) In the filtration device described in (Patent Document 1), the filtered earth and sand etc. are accumulated in the cloth bag. Therefore, the filtration efficiency gradually decreases as the earth and sand accumulate and the water does not flow when it becomes full. Therefore, it was necessary to remove and replace the cloth bag, and the work efficiency at the site was poor, and there was a problem that the purification treatment could not be performed efficiently.
(B) The filtration device described in (Patent Document 2) requires a carry-out device and an aeration device for removing the filtered sediment, and is limited to places where a large installation area, power supply, etc. are secured. In addition to the poor nature, there was a problem that the filter medium was clogged with earth and sand and was easily clogged and lacked in maintainability.
The present invention solves the above-mentioned problems, is lightweight, has excellent transportability, is easy to install, can be applied anywhere, has excellent filtration characteristics and maintainability, can be easily purified at a construction site, and can be folded freely. The purpose is to provide a simple filtration device that does not take up space for storage.
[0005]
[Means for Solving the Problems]
The simple filtration device according to claim 1 is a container body to which suspended water is supplied, and a plurality of filtration bags formed in a substantially rectangular plate extending inside the container body and containing a filler therein. And a filtered water discharge pipe for connecting the lower end of the filtration bag body and discharging filtered water to the outside of the container body.
With this configuration, the following effects can be obtained.
(A) By simply supplying suspended water to the container body, the treated water filtered on the surface of the filter bag body can be discharged from the filtered water discharge pipe, so it can be easily installed even in construction sites with narrow location conditions. , Workability is improved.
(B) Sediment or the like crushed with a filter cloth accumulates at the bottom of the container and does not accumulate in the filter bag, so that the filtration performance by the filter cloth is little with time and water purification is excellent.
(C) The earth and sand accumulated in the container can be easily discharged from the opening in the upper part of the container, and is excellent in workability and maintainability.
(D) Since the suspension water is filtered only by the head difference without using a power source or the like without using a power source or the like, the economy, energy saving, and versatility are excellent.
(E) Since the filtration bag body is arranged in parallel in the container, the filtration area per unit space can be increased to increase the processing efficiency.
(F) When a water storage bag is connected to the filtrate drain pipe, the filtrate discharged from the filter bag body can be stored. By squeezing the water storage bag with a foot or the like, the filtered water can flow back into the filter bag, and the filtered water can be washed out from the surface of the filter cloth in the reverse direction. Excellent in properties.
[0006]
Here, as a material of the filter cloth, for example, a woven fabric or a nonwoven fabric made of synthetic fiber or natural fiber can be applied. Synthetic fibers that can be used generally include polyamides, polyesters, polyolefins, polyvinyl alcohols, polyfluoroethylene, polyacrylonitrile, vinyl acetate, and ethylene tetrafluoride having a thickness of about 0.1 to 20 μm. It should be noted that a predetermined portion of each intersection of the fibers is fixed by fusing by heating or adhering with an adhesive to reinforce the whole and trapping according to the size of solid particles in the suspended water The rate may be adjusted. In addition, the material of the filter cloth is composed of an ion exchange resin that prevents adhesion of charged solid particles in the suspension water, or the surface of the filter cloth part is partially covered with the ion exchange resin, It is also possible to suppress adhesion and prevent clogging during the filtration process.
The packing material built in the filter bag of the approximately rectangular plate shape is a cushion shape made of synthetic resin or metal such as Hetimaron (registered trademark) with excellent water permeability and shape retention, porous plate shape, lattice The shape of a filter and a frame can be applied, whereby the shape of the filtration bag body standing in the container body can be maintained, water permeability can be ensured, and predetermined filtration performance can be exhibited.
The two opposite sides of the filtration bag body are fixed to the inner side of the container body by sewing or bonding means, and 4 to 10 filtration bag bodies are parallel to each other at an interval of, for example, 30 to 200 mm, preferably 50 to 150 mm. It is arranged to be. This depends on the type of suspended water and the type of earth and sand, but as this interval becomes less than 50 mm, the suspended water supplied into the container is prevented from flowing along the surface of the filter bag, resulting in a filter cloth. There is a tendency for earth and sand to easily adhere to the surface, and clogging tends to occur. Conversely, as this interval exceeds 150 mm, the number of filtration bags disposed in the container decreases, the filtration area decreases, and the filtration efficiency tends to decrease. This is because these tendencies are smaller than 30 mm or more than 200 mm.
[0007]
The filtered water discharge pipe is made of a synthetic resin such as vinyl chloride or soft vinyl, and is fixed with one end side inserted into the edge of the filtration bag body using an adhesive means or a sewing means, and the other end side is a container body. It is fixed in a state where it penetrates from the side on the bottom side toward the outside, and the treated water filtered by the filter cloth of each filtration bag body arranged in parallel in the container body can be discharged naturally to the outside. Yes. In addition, even if the filtered water discharge pipe is crushed by being compressed and filled with a core material that can pass water, such as spears and felt, on the side of the container body of the filtered water discharge pipe, it is blocked here. The flow of treated water can also be prevented from stopping.
[0008]
The simple filtration device according to claim 2 is configured in the invention according to claim 1, wherein the filler is formed from at least one of a net-like, lump-like, cushion-like, and lattice-frame-like material. .
With this configuration, in addition to the operation of the first aspect, the following operation can be obtained.
(A) Since the filler contained in the filter bag is formed of at least one of a net-like, lump-like, cushion-like, and lattice-frame-like material, even if a large amount of suspended water is supplied into the container The shape of the filtration bag body can be maintained in an appropriate state, and the filtration performance can be prevented from being deteriorated to perform an efficient purification process.
Here, as the filler, a material formed in the above-described lattice shape, porous shape, three-dimensional net shape, cushion shape or the like having good water permeability is preferably used. The thickness of the filler incorporated in the filter bag is preferably about 5 to 30 mm. This depends on the size of the filtration bag and the container, the filtration characteristics of the filter cloth, etc., but as the thickness becomes thinner than 5 mm, the filter cloths formed in the bag shape come into close contact with each other and the flow path of the treated water is inside. However, as the thickness exceeds 30 mm, it is difficult to reduce the number of filtration bag bodies that can be built in the container body or to maintain an appropriate interval between the filtration bag bodies. This is because the filtration efficiency tends to decrease. In addition, the three-dimensional mesh made of synthetic resin, ceramics, metal, etc., in addition to synthetic resin such as urethane resin, net-like or mesh-like materials made by knitting metal wires, etc. Examples include a bulk material having a structure, a porous material having continuous air holes and grooves, and a material in which rod-like materials are laminated at intervals to form a lattice shape.
[0009]
The simple filtration device according to claim 3 is the invention according to claim 1 or 2,
The container body is made of a waterproof fabric, a sheet made of synthetic resin, a flexible sheet such as turbolin, and is formed in a box shape or a cylindrical shape with a bottom open.
With this configuration, in addition to the operation of the first or second aspect, the following operation is obtained.
(A) Since the container body is made of a flexible sheet, the container body is lightweight and excellent in transportability, and can be folded up when not in use, and can be stored compactly even in a small storage place, and is excellent in convenience.
(B) Since the container body becomes compact, it is easy to carry a large number of container bodies, and when the water suddenly increases, the container body can be brought to the site and dealt with promptly, and has excellent mobility.
(C) Since a container body consists of a flexible sheet | seat, when suspension water is inject | poured, it can expand completely with dead weight of suspension water, and can improve filtration efficiency.
Here, the container body is formed in a box shape or a cylindrical shape by sewing or bonding a waterproof flexible sheet. This container body can raise the storage efficiency without being bulky by folding the whole.
[0010]
The simple filtration device according to claim 4 is the invention according to any one of claims 1 to 3, wherein an interval of 10 to 150 mm is provided between the inner bottom surface of the container body and the lower end of the filtration bag body. A suspension storage part is formed with a gap.
According to this configuration, in addition to the operation of any one of claims 1 to 3, the following operation can be obtained.
(A) Since a predetermined suspension reservoir is formed at a predetermined interval between the inner bottom surface of the container body and the lower end of the filter bag body, the earth and sand scraped off on the surface of the filter cloth is the container body. The top of the filtration bag body is not covered with earth and sand, the filtration area can be secured, and the water purification process can be performed stably.
Here, when the space | interval of a suspension storage part is less than 10 mm, a sufficient amount of earth and sand cannot be stored, and the amount of water purification processing which can be processed with a simple filtration apparatus will fall. On the other hand, if it exceeds 150 mm, the amount of stored soil and the like increases, and handling such as movement after the water purification treatment and discharge of suspended matter becomes inconvenient, which is not preferable.
[0011]
The simple filtration device according to claim 5 is the invention according to any one of claims 1 to 4, wherein a reinforcing member having a rod-like shape, an elongated plate shape, a face plate shape, or a surface lattice shape is provided on a side surface of the container body. They are arranged in the horizontal direction and / or the vertical direction.
According to this configuration, in addition to the operation of any one of claims 1 to 4, the following operation can be obtained.
(A) Since the reinforcing member is disposed on the side surface of the container body, even if the container body is filled with the suspended water, the entire body can be prevented from swelling and deforming due to its weight and overflowing the suspended water, The interval between the filter bags can be kept constant to prevent the filtration efficiency from decreasing, and can be maintained in an appropriate state.
(B) Since the reinforcing member is provided, the container body can be easily folded and then unfolded, and the handleability is excellent, and the installation work at the site can be performed quickly.
(C) Since the filtration device is not deformed by its own weight, it can be easily fitted into a road side groove or the like, and can be suitably used as a filtration device for filtering water in the road side groove.
Here, as the reinforcing member, a relatively hard synthetic resin, a metal rod-like body such as an aluminum alloy or steel, an elongated plate-like body, a face-plate-like body, or a surface-grid-like body can be applied. It is attached to the side part of the body in the horizontal direction or the vertical direction via a locking member or directly attached via an adhesive or the like.
[0012]
A simple filtration device according to a sixth aspect of the present invention is the invention according to any one of the first to fifth aspects, wherein a suspension portion is provided on the upper side of the container body facing the upper portion. .
According to this configuration, in addition to the operation of any one of claims 1 to 5, the following operation can be obtained.
(A) Since a suspension part is provided on the upper side, it is possible to easily carry a simple filter device that is folded in its entirety. Yes.
(B) The upper side suspenders can be tied and connected with a rope, etc., and the opening of the container body that is easy to spread by filling the suspended water is regulated to maintain the interval between the filtration bags inside properly. Can be made.
[0013]
The simple filtration device according to claim 7 is the invention according to any one of claims 1 to 6, wherein the surface of the filter cloth is made of a synthetic resin such as silicon, urethane, tetrafluoroethylene, or acrylic. It is configured to be covered with a scram structure in which fine particles are aggregated to form a channel between the particles.
According to this configuration, in addition to the operation of any one of claims 1 to 6, the following operation is obtained.
(A) Since the filter cloth is covered with a layer having a scram structure made of synthetic resin fine particles, the surface portion formed by spreading the synthetic resin fine particles reliably captures particles in the suspended water. Thus, it is possible to prevent intrusion into the inside and effectively prevent clogging.
(B) Since water molecules and minerals dissolved in water easily pass through the coating layer, a large amount of fresh water containing minerals can be obtained.
(C) When tetrafluoroethylene (trade name Teflon (registered trademark)) or this is used as a coating material, the adhesiveness to the solid content in the suspended water is small and the anti-clogging property is excellent.
Here, the scram structure is formed by spraying fine particles having a particle diameter of 1 μm to 2000 μm of a synthetic resin such as polyurethane resin dispersed in a solvent onto the filter cloth part to form a layer in which the fine particles are joined in a network form, It can be formed by mixing and stirring fine particles into a quality material and dispersing the fibers or fine particles partially.
[0014]
The simple filtration device according to claim 8 is the invention according to claim 7, wherein the layer thickness of the scram structure covered on the surface of the filter cloth is 10 to 30% with respect to the layer thickness of the filter cloth. It is configured to be.
With this configuration, in addition to the operation of the seventh aspect, the following operation can be obtained.
(A) Since the layer thickness of the scram structure is in a specific range, it is possible to balance the amount of filtration treatment and its clogging characteristics, and to efficiently perform a large amount of processing such as suspension water at a construction site.
(B) Since clogging can be reduced even for fine particles, it can also be used for dispersion removal of plankton such as sea cucumbers generated in lakes, rivers, seas and the like.
Here, the layer thickness of the scram structure relative to the layer thickness of the filter cloth depends on the solid content concentration and the type of the suspended water, but if it is less than 10%, the adhesion of the solid content filtered in the filter cloth part increases. Since a tendency appears and a backwash process is required in a short period, it is not preferable. Conversely, if it exceeds 30%, the filtration treatment flow rate tends to decrease, which is not preferable.
[0015]
A simple filtration device according to a ninth aspect is the invention according to any one of the first to eighth aspects, wherein the container body includes a filtered water storage portion communicated with the filtration bag body at a bottom thereof. The filtrate drain pipe is connected to the filtrate storage part.
With this configuration, in addition to the operation of any one of claims 1 to 8, the following operation is provided.
(A) Since a filtrate storage part that can store a certain amount of filtrate is provided at the bottom of the container body, there is no variation in the amount of extracted water as in the case of removing filtrate from each filter bag individually. Can be discharged from the filtered water discharge pipe with a stable amount of water.
(B) The filtered water discharge pipe is closed with a valve or the like, or the pipe portion is bent so that water does not leak, and then the filtrate water storage section is pressurized and the filtrate water in the filtrate storage section is filtered. By flowing back into the filter bag body, the solid content on the filter cloth can be removed and washed, and the maintenance is excellent.
Here, the filtrate storage unit is a tank that has an internal volume of 1/20 to 1/10 of the total internal volume of the container body and stores the filtrate provided at the bottom, such as a valve. A filtered water discharge pipe that is opened and closed at is connected and used. When the internal volume of the filtrate storage part is less than 1/20 of the internal volume of the container body, it tends to be difficult to equalize the amount of filtrate water to be discharged. In addition, the size of the filtration bag body is limited, and the amount of filtration treatment tends to be greatly reduced.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
(Embodiment 1)
A simple filtration device according to Embodiment 1 of the present invention will be described.
1 is a perspective view of a simple filtration device according to Embodiment 1, FIG. 2 is a plan view thereof, FIG. 3 is a side sectional view, FIG. 4 is a front sectional view, and FIG. 5 is a simple filtration device. It is a perspective view of the state which folded up.
1-4, 10 is the simple filtration device of the first embodiment, 11 is the suspension water supplied from the upper opening 11a, and each corner is made of a flexible fabric such as waterproof cloth or turbolin. Container body formed in a substantially box shape by holding portions 11b formed in a columnar shape by sewing or bonding at both side ends, and 12 to 15 are sewn on the opposite two sides of the substantially rectangular plate shape in the container body 11 The filter bag body 16 is supported by the instruction part 11b 'on the side wall of the container body 11 by bonding or the like, and is passed with a distance D enough to be inserted between the hands, and 16 is entangled with synthetic resin linear objects. A hand-plate-shaped cushion-shaped filler material that is welded and formed into a cushion shape, 17 is inserted into the lower end portion side of the filtration bag bodies 12 to 15, and the other end portion is outward from the side portion of the container body 11. This is a filtered water discharge pipe that is drawn out and arranged.
The container body 11 sews the opposing two side end portions of each of the filtration bag bodies 12 to 15 so that the filtration bag bodies 12 to 15 have an interval D of about 50 to 150 mm. They are installed in parallel. In addition, the suspension storage part of 10-150 mm provides the space | interval H between the inner bottom face of the container body 11, and the lower end of the filtration bag bodies 12-15 so that a suspension body can be stored here. Yes.
[0017]
On the side surface of the container body 11, two bag-like storage portions 11c formed in a bag shape are horizontally arranged in the vertical direction, and a rod-like reinforcing member 11c 'made of hard synthetic resin is inserted and fixed therein. ing. In addition, the suspension body 11e is provided in the upper part of the container body 11, and when handling the simple filtration apparatus 10 at the time of conveyance, the folded simple filtration apparatus is tied with a rope etc. and packed, etc. Has increased convenience.
The filter bag bodies 12 to 15 are formed in a substantially rectangular plate shape by sewing a filter cloth made of a woven fabric or a nonwoven fabric made of synthetic fiber or natural fiber. Inside, a filler 16 is embedded and sealed in a bag shape, and a filtrate drain pipe 17 is inserted and fixed on the lower end side.
The filtered water discharge pipe 17 is formed in a pipe shape or a tube shape with a waterproof fabric, sheet, synthetic resin pipe, etc., and is disposed through the side hole 11 d of the container body 11, and the filtration bag body inside the container body 11. The treated water purified in 12 to 15 is discharged to the outside.
As shown in FIG. 1, the simple filtration device 10 is formed in a substantially box shape having a height of 200 to 500 mm, a vertical width of 300 to 2000 mm, and a horizontal width of 200 to 1000 mm when installed in an expanded state. As shown in FIG. 5, the whole can be made compact by folding from the front side and tying with a rope 18 or the like, and is excellent in storage and handling.
[0018]
Next, a method for purifying suspended water using the simple filtration device 10 configured as described above will be described.
First, when the simple filtration device 10 in the folded state as shown in FIG. 5 is deployed and arranged at a suspended water generation site such as a construction site as shown in FIG. 1, it is self-supported by the holding portion 11b and the support portion 11b ′. Next, suspended water is supplied from the opening part 11a of the container body 11, and the water surface of suspended water is raised.
At this time, since the reinforcing member 11c ′ is provided in the container body 11, the side surface of the container body 11 is suppressed from being bulged by the water pressure, and the filtration bag bodies 12 to 15 are held at appropriate positions. . In this way, water pressure is applied from the outside of the filter bag bodies 12 to 15 toward the filler 16 built in the inside thereof, and a permeate flow is generated, and the solid content in the suspended water is filtered on the surface of the filter cloth. It sinks to the bottom of the container body 11.
On the other hand, the treated water purified on the filter cloth surface is discharged to the outside through the filtered water discharge pipe 17 provided on the lower end side of the filtration bag bodies 12 to 15 through the gap of the filler 16.
In this way, water treatment can be efficiently performed only by the weight of the suspension water supplied to the simple filtration device 10.
When a predetermined amount of earth and sand is accumulated in the container body 11, the container body 11 is inverted using a lifting hand 11 e and the sediment stored in the container body 11 is discharged to a predetermined place and the like. 10 can be used again for the purification treatment.
Further, when the purification process is completed, the empty simple filtration device 10 can be folded to be compact, and a large number of filtration devices can be stored in the storage location.
In addition, the filtrate drain pipe 17 is connected to a filtrate tank formed in a bag shape or the like, the filtrate is stored, the filtrate tank is pressurized, and the filtrate flows back to the filtration bags 12 to 15. It can also be made. Thereby, the solid content adhering to the surface of the filtration bag bodies 12 to 15 can be effectively removed and used without clogging.
[0019]
Since the simple filtration device 10 of the first embodiment is configured as described above, it has the following operation.
(A) Since the earth and sand crushed with the filter cloth accumulates at the bottom of the container body 11 and does not accumulate in the filtration bag bodies 12 to 15, the time change of the filtration performance by the filter cloth is small, and the water purification process is excellent. .
(B) Since the interval D between the filter bag bodies 12 to 15 is 50 to 150 mm, a brush is inserted to prevent clogging of the filter cloth surface during filtration and the like, and the filter cloth is swept with the tip of the filter cloth. The adhesion layer attached to the surface can be removed to maintain the filtration efficiency, and the maintenance is excellent.
(C) The earth and sand accumulated in the container body 11 can be easily discharged from the opening 11a at the top of the container body 11, and is excellent in workability and maintainability.
(D) Since the filler 16 is built in the filtration bag bodies 12 to 15, even if a large amount of suspended water is supplied into the container body 11, the shape is maintained in an appropriate state, and deterioration of the filtration performance is prevented. Thus, an efficient purification process can be performed.
(E) Since the container body 11 is made of a flexible sheet, the entire container body 11 can be folded when not in use, can be stored compactly even in a small storage space, and can stand alone during use by the holding portion 11b and the support portion 11b ′. So workability is excellent.
(F) It is lightweight and can be easily carried, and can be brought to the site quickly when sudden water increases, and has excellent mobility.
(G) Since the interval H between the suspension storage portions is formed on the inner bottom surface of the container body 11, a predetermined amount of earth and sand scraped off on the surface of the filter cloth is allowed to settle on the bottom of the container body 11. The upper part of the filtration bag bodies 12-15 is not covered with earth and sand, a filtration area can be ensured, and a water purification process can be performed stably.
(H) Since the reinforcing member 11c ′ is disposed on the side surface of the container body 11, even if the inside of the container body 11 is filled with suspended water, the reinforcing member 11c ′ side does not swell due to its weight, and each filtration bag It is possible to prevent the filtration efficiency from decreasing by keeping the interval between the bodies constant.
(I) Since suspended water is filtered only by the head difference without using power, the energy saving property is excellent.
(J) It is possible to easily arrange a bubble generator, an aeration device or the like in the container body 11 to which the suspended water is supplied, and perform secondary water treatment such as sterilization and oxygen enrichment, It is also possible to add convenience corresponding to the purpose.
(K) Since the suspension hand 11e is provided on the upper side, it is possible to easily carry a simple filter device that is folded in its entirety. Yes.
(L) Since the simple filtration device 10 is formed in a rectangular parallelepiped shape, it is possible to perform the purification process by fitting in a side groove-like portion of the road and keeping it in a stable state.
[0020]
(Embodiment 2)
A simple filtration device according to Embodiment 2 of the present invention will be described.
FIG. 6 is a perspective view of the simple filtration device of the second embodiment.
In FIG. 6, reference numeral 20 denotes a simple filtration device according to the second embodiment, and 21 denotes a substantially bottomed cylindrical shape made of a flexible cloth such as waterproof cloth or turbolin supplied with suspended water from the upper opening 21a. The formed container bodies 22 to 25 are filtrations in which the two opposite sides of the substantially rectangular plate shape are supported in the peripheral wall of the container body 21 by the support portion 21 b ′ and are embedded in the container body 21. It is a bag.
The simple filtration device 20 of the second embodiment is the same as that of the first embodiment in that the container body 21 is formed in a substantially cylindrical shape and the filter cloth structure of the filtration bag bodies 22 to 25. Although different, the other configurations are substantially the same, and therefore, the same reference numerals are given to them and the description thereof is omitted.
As shown in the figure, the container body 21 is formed in a substantially cylindrical shape having an opening 21a and a bottom 21b with an opening at the top and a diameter of about 400 to 2000 mm and a height of 300 to 2000 mm. A filtered water discharge pipe 17 connected to each of the two is protruded to the lower end portion side of the side portion.
The surfaces of the filter cloths of the filtration bags 22 to 25 are covered with a scram structure in which particles such as polyurethane resin having a particle diameter of 1 μm to 2000 μm are sprayed on the filter cloth to collect the particles to form a channel between the particles. The layer thickness of the scram structure is 10 to 30% of the thickness of the filter cloth.
[0021]
Since the simple filtration device 20 of the second embodiment is configured as described above, it has the following operation in addition to the operation of the first embodiment.
(A) Since the filter cloth is covered with a layer having a scram structure made of synthetic resin fine particles, the surface portion formed by spreading the synthetic resin fine particles reliably captures particles in the suspended water. Thus, it is possible to prevent intrusion into the inside and effectively prevent clogging.
(B) Since the layer thickness of the scram structure is set within an appropriate range, the amount of filtration treatment and its clogging characteristics can be balanced, and mass treatment of suspended water or the like at the construction site can be performed efficiently.
(C) In particular, when tetrafluoroethylene (trade name Teflon (registered trademark)) is used, the adhesiveness to the solid content in the suspended water is small, and the anti-clogging property is excellent.
(D) Since the container body 21 is formed in a cylindrical shape, the simple filtration device 20 can be suitably applied to a place such as a manhole where suspended water is poured. In addition, the cylindrical shape can withstand large volumes.
[0022]
(Embodiment 3)
A simple filtration device according to Embodiment 3 of the present invention will be described.
FIG. 7 is a perspective view of the simple filtration device according to the second embodiment, and FIG.
7 and 8, 30 is a simple filtration device according to the third embodiment, 31 is a container body formed in a substantially bottomed rectangular parallelepiped box shape to which suspended water is supplied from above, and 32-36 are container bodies. 31 is a filtration bag body in which two opposite sides of the substantially rectangular plate shape are supported by a sewing means or an adhesion means and are provided and embedded, and the lower end surface is opened entirely or at a predetermined position, 37 is a container body A filtered water storage section 38 formed by communicating the lower portions of the filtration bag bodies 32 to 36 to the bottom of 31, and a filtered water discharge pipe connected to the filtered water storage section 37.
In addition, the simple filtration apparatus 30 of Embodiment 3 equips the bottom part of the container body 31 with the filtered water storage part 37, and the filtered water discharge pipe 38 is connected to this filtered water storage part 37 in Embodiment 1. However, since the other configurations are substantially the same, the same reference numerals are given and the description thereof is omitted.
As shown in the drawing, the container body 31 is formed in a box shape having an open top, and is formed in a rectangular parallelepiped shape having a length and width of about 400 to 2000 mm and a height of 300 to 2000 mm. The filtration bag bodies 32 to 36 provided to the container body 31 are arranged such that their lower portions communicate with the filtrate storage part 37 by sewing means, adhesive means, pipe connection means, or the like. In addition, the part which makes the upper part of the filtrate water storage part 37, and the filtration bag bodies 32-36 are comprised with one filter cloth, and this filter cloth is the side in the container body 31 in the state folded repeatedly by predetermined length. It attaches to a part and its lower part, and such filtration bag bodies 32-36 and the filtrate water storage part 37 can also be comprised.
[0023]
Since the simple filtration device 30 of the third embodiment is configured as described above, it has the following operation in addition to the operation of the first embodiment.
(A) Since the filtrate storage part 37 is provided in the bottom part of the container body 31, the filtrate filtered by the filtration bag bodies 32-36 can be discharged | emitted by the stable amount of water from the filtrate drain pipe 38, and the filtration process is carried out. Excellent efficiency.
(B) The filtered water discharge pipe 38 is closed with a valve or the like, or the pipe portion is bent and maintained so that water does not leak, and then the filtrate water storage section 37 is pressurized to store the filtrate water. The filtered water in the section 37 flows back to the filtration bag bodies 32 to 36, the container body 31 is pressurized from above, the filtered water in the filtered water storage section flows back to the filtration bag body, and the solid content on the filter cloth can be removed and washed. , Excellent maintainability.
[0024]
(Embodiment 4)
A simple filtration device according to Embodiment 4 of the present invention will be described.
FIG. 9 is a perspective view of the simple filtration device of the fourth embodiment.
In FIG. 9, 40 is a simple filtration device according to the fourth embodiment, 41 is a container body formed in a substantially bottomed cylinder shape through which suspended water is supplied from the upper opening 41 a, and 42 contains a filler. These are a plurality of filtration bag bodies that are formed in a substantially rectangular plate shape, one end side of which is connected to a center support body 43 disposed at the center of a cylindrical container body 41 and arranged radially.
The simple filtration device 40 of the fourth embodiment is different from that of the second embodiment in that a plurality of filtration bag bodies 42 are radially arranged in a substantially cylindrical container body 41. Since these are substantially the same, the same reference numerals are given to these and the description thereof is omitted.
As shown in the figure, the container body 41 is formed in a substantially cylindrical shape with an opening at the top, and the filtrate drain pipe 17 connected to each filtration bag body 42 arranged radially in the container body 41 is on its side. It protrudes to the lower end part side of the part.
In addition, the central support 43 is formed in a cylindrical pipe shape, arranged so as to communicate with the respective side wall portions of each filtration bag 42, and a single filtrate drain pipe is attached to the bottom of the central support 43, Thereby, the filtrate water filtered by each filter bag body 42 can be collected and discharged outside.
[0025]
Since the simple filtration device 40 of the fourth embodiment is configured as described above, it has the following operation in addition to the operation of the second embodiment.
(A) Since the filtration bag bodies 42 are arranged radially in the container body 41 formed in a cylindrical shape, the stability when holding the suspended water is excellent.
(B) Since the simple filtration device 40 can be stably arranged, the purification process can be easily performed even when the flow rate of the supplied suspension water is large.
[0026]
【The invention's effect】
According to the simple filtration device of the first aspect, the following effects can be obtained.
(A) By simply supplying suspended water to the container body, the treated water filtered on the surface of the filter bag body can be discharged from the filtered water discharge pipe. Can be prevented and workability is excellent.
(B) Sediment or the like crushed with a filter cloth accumulates at the bottom of the container and does not accumulate in the filter bag, so that the filtration performance by the filter cloth is little with time and water purification is excellent.
(C) The earth and sand accumulated in the container can be easily discharged from the opening in the upper part of the container, and is excellent in workability and maintainability.
(D) Since the suspension water is filtered only by the head difference without using a power source or the like without using a power source or the like, the economy, energy saving, and versatility are excellent.
(E) Since the filtration bag body can be arranged in parallel in the container, the filtration area per unit space can be increased to increase the processing efficiency.
[0027]
According to the simple filtration device of the second aspect, the following effect can be obtained in addition to the effect of the first aspect.
(A) Since the filler is arranged in the filtration bag body, even if a large amount of suspended water is supplied into the container body, the shape of the filtration bag body is maintained in an appropriate state, and the filtration performance is prevented from being deteriorated efficiently. Purification treatment can be performed.
[0028]
According to the simple filtration device of the third aspect, in addition to the effect of the first or second aspect, the following effect can be obtained.
(A) Since the container body is made of a flexible sheet, the container body is lightweight and excellent in transportability, and can be folded up when not in use, can be stored compactly, and is excellent in convenience.
[0029]
According to the simple filtration device of the fourth aspect, in addition to the effect of any one of the first to third aspects, the following effect can be obtained.
(A) Since a predetermined suspension storage part is formed between the inner bottom surface of the container body and the lower end of the filter bag body, the sediment removed from the surface of the filter cloth is settled on the bottom part of the container body. The filtration bag body is not covered with earth and sand, the filtration area can be secured, and the water purification process can be performed stably.
[0030]
According to the simple filtration device of the fifth aspect, in addition to the effect of any one of the first to fourth aspects, the following effect can be obtained.
(A) It can prevent that the whole swells and deform | transforms with the weight, and is maintaining the space | interval between each filtration bag body, and is excellent in filtration efficiency.
(B) Since the reinforcing member is provided, the container body can be easily folded and then unfolded, and the handleability is excellent, and the installation work at the site can be performed quickly.
[0031]
According to the simple filtration device of the sixth aspect, in addition to the effect of any one of the first to fifth aspects, the following effect can be obtained.
(A) Since a suspension part is provided on the upper side, it is possible to easily carry a simple filter device that is folded in its entirety. Yes.
[0032]
According to the simple filtration device of the seventh aspect, in addition to the effect of any one of the first to sixth aspects, the following effect can be obtained.
(A) Since it has a scrum structure, particles in suspension water can be reliably captured at the surface portion formed by laying fine particles of synthetic resin, preventing entry into the interior, and clogging can be prevented. Effectively prevents and has excellent filtration efficiency.
(B) Since water molecules and minerals dissolved in water easily pass through the coating layer, a large amount of fresh water containing minerals can be obtained.
[0033]
According to the simple filtration device of the eighth aspect, in addition to the effect of the seventh aspect, the following effect can be obtained.
(A) Since the layer thickness of the scram structure is in a specific range, it is possible to balance the amount of filtration treatment and its clogging characteristics, and to efficiently perform a large amount of processing such as suspension water at a construction site.
(B) Since clogging can be reduced even for fine particles, it can also be used for dispersion removal of plankton such as sea cucumbers generated in lakes, rivers, seas and the like.
[0034]
According to the simple filtration apparatus of Claim 9, in addition to the effect of any one of Claims 1 thru | or 8, it has the following effects.
(A) Since a filtrate storage part that can store a certain amount of filtrate is provided at the bottom of the container body, there is no variation in the amount of extracted water as in the case of removing filtrate from each filter bag individually. Can be discharged from the filtered water discharge pipe with a stable amount of water.
(B) The filtered water discharge pipe is closed with a valve or the like, or the pipe portion is bent so that water does not leak, and then the filtrate water storage section is pressurized and the filtrate water in the filtrate storage section is filtered. By flowing back into the filter bag body, the solid content on the filter cloth can be removed and washed, and the maintenance is excellent.
[Brief description of the drawings]
FIG. 1 is a perspective view of a simple filtration device according to a first embodiment.
FIG. 2 is a plan view of the simple filtration device according to the first embodiment.
FIG. 3 is a side sectional view of the simple filtration device according to the first embodiment.
4 is a front sectional view of the simple filtration device according to Embodiment 1. FIG.
FIG. 5 is a perspective view showing a state in which the simple filtration device according to the first embodiment is folded.
FIG. 6 is a perspective view of a simple filtration device according to a second embodiment.
7 is a perspective view of a simple filtration device according to Embodiment 3. FIG.
FIG. 8 is a side sectional view of the simple filtration device according to the third embodiment.
9 is a perspective view of a simple filtration device according to Embodiment 4. FIG.
[Explanation of symbols]
10 Simple filtration device of Embodiment 1
11 Container
11a opening
11b Holding part
11b 'support part
11c storage section
11c 'reinforcement member
11d side hole
11e Hanging hand
11f Suspension reservoir
12-15 Filtration bag
16 Filler
17 Filtration water discharge pipe
20 Simple filtration device of Embodiment 2
21 Container
21a opening
21b Bottom
22-25 Filtration bag
30 Simple filtration device of Embodiment 3
31 container
32-36 Filtration bag body
37 Filtration water reservoir
38 Filtration water discharge pipe
40 Simple filtration device of Embodiment 4
41 Container
41a opening
42 Filtration bags
43 Center support

Claims

Connected to a container body to which suspended water is supplied, a plurality of filtration bag bodies formed in a substantially rectangular plate extending inside the container body and containing a filler therein, and a lower end of the filtration bag body And a filtered water discharge pipe for discharging filtered water to the outside of the container body.

2. The simple filtration device according to claim 1, wherein the filler is formed of at least one of a net-like shape, a lump-like shape, a synthetic resin-made or metal-made cushion shape, and a lattice frame-like material.

2. The container body is made of a waterproof fabric, a sheet made of synthetic resin, a flexible sheet such as turbolin, and is formed in a bottomed box shape or a cylindrical shape having an open top. Or the simple filtration apparatus of 2.

The suspension storage part is formed in the space | interval of 10-150 mm between the inner bottom face of the said container body, and the lower end of the said filtration bag body, The any one of the Claims 1 thru | or 3 characterized by the above-mentioned. The simple filtration device according to item.

The bar-shaped or elongated plate-shaped, face-plate-shaped, or face-lattice-shaped reinforcing member is disposed on the side surface of the container body in the horizontal direction and / or the vertical direction. The simple filtration device according to item.

The simple filtration device according to any one of claims 1 to 5, wherein a suspension portion is provided on an upper side portion of the upper portion of the container body facing each other.

The surface of the filter cloth is covered with a scrum structure in which fine particles of synthetic resin such as silicon, urethane, tetrafluoroethylene, and acrylic are aggregated to form a flow path between the particles. The simple filtration apparatus of any one of thru | or 6.

The simple filter device according to claim 7, wherein a layer thickness of the scram structure coated on a surface of the filter cloth is 10 to 30% with respect to a layer thickness of the filter cloth.

The inside of the said container body is provided with the filtrate storage part connected to the said filtration bag body in the bottom part, The said filtrate drainage pipe is connected to the said filtrate storage part, The inside of Claim 1 thru | or 8 The simple filtration apparatus of any one of Claims.