201102354 六、發明說明： 【發明所屬之技術領域】 本發明係關於將藉由固液分離裝置進行處理之污泥， 在進行該處理前先予以絮凝化之污泥絮凝化裝置、和具有 該污泥絮凝化裝置及固液分離裝置之污泥處理裝置。 【先前技術】 以往以來，利用固液分離裝置，將被污泥絮凝化裝置 所絮凝化之污泥進行固液分離之污泥處理裝置爲眾所皆知 。這種裝置如日本特開平5 - 228695號公報、日本特開 2004— 357615號公報、日本特開2001- 198599號公報、 日本特開平9 - 22〇5 96號公報所揭示。藉由該污泥處理裝 置對污泥進行處理之際，當被送到固液分離裝置之污泥的 固形分濃度（浮遊物濃度）低時，從該污泥能夠分離的固 形分的量會減少，無法有效地將污泥加以固液分離。因此 ’被提案有從污泥分離一部分的液體，提高污泥的固形分 濃度’將提高了其濃度之污泥送到固液分離裝置之污泥絮 凝化裝置（參照日本特開2〇07— 54684號公報）。 以往所提案的這種形式之污泥絮凝化裝置的結構係具 有送入有污泥與凝聚劑之混和槽、配置於該混和槽內之過 濾體、及配置於該過濾體內之螺槳，過濾體具有相互隔著 間隔地配置之複數個固定環、和配置於相鄰的固定環之間 的可動環’將被送到混和槽內之污泥予以絮凝化，再將該 被絮凝化的污泥中的液體通過過濾體之濾液流入間隙流入 [S 1 -5- 201102354 到過濾體內。藉此，能夠將提高了濃度之污泥送入到固液 分離裝置。 但，依據以往所提案之污泥絮凝化裝置，由於混和槽 內的絮凝即污泥的固形分緊密地附著於過濾體之周圍，故 污泥中的液體不易通過過濾體之濾液流入間隙來進入到過 濾體內，因此造成無法從污泥分離充分量之液體的問題產 生。 【發明內容】 〔發明所欲解決之課題〕 本發明係爲了解決上述以往技術之問題點而開發完成 的發明，其目的在於提供能夠從藉由固液分離裝置進行處 理前的污泥分離較以往更多量的液體之污泥絮凝化裝置、 和具有該污泥絮凝化裝置及固液分離裝置之污泥處理裝置 〔用以解決課題之手段〕 本發明之污泥絮凝化裝置，其特徵爲，具備有：送入 污泥與凝聚劑之混和槽；設置於該混和槽內，具有相互隔 著間隔地配置之複數個固定環與配置於相鄰的固定環之間 的可動環之過濾體；配置於該過濾體外，用來攪拌被送入 到混和槽之污泥與凝聚劑的攪拌手段；及驅動該可動環， 使前述可動環的中心軸線公轉於前述固定環的中心軸線的 周圍之驅動裝置，前述可動環的外徑設定成較前述固定環 -6 - 201102354 的外徑更大，前述驅動裝置具有：滑接於前述固定環的外 局I® ’且一邊加壓可動環的外周面，一邊旋轉於固定環的 周ι@ ’來使可動環公轉於固定環的中心軸線的周圍之加壓 構件。 且’在上述污泥絮凝化裝置，前述驅動裝置除了前述 加壓構件外，還具有馬達、和被***到前述過濾體內並被 前述馬達所旋轉驅動之軸，前述加壓構件固定連結於前述 軸’利用以前述馬達使該加壓構件旋轉驅動於前述軸的中 心軸線的周圍，使前述可動環公轉於前述固定環的中心軸 線的周圍爲佳。 又，在上述污泥絮凝化裝置，可動環的寬度設定成較 固定環的寬度更大爲佳。 且’在上述污泥絮凝化裝置，具備有一邊滑接於前述 固定環的外周面，一邊與前述加壓構件一同旋轉之清潔構 件爲佳。 又’在上述污泥絮凝化裝置，前述攪拌手段具備有： 固定於前述軸，藉由前述馬達旋轉驅動之攪拌葉片爲佳。 且，在上述污泥絮凝化裝置，具備有：調整從被送入 到前述混和槽之污泥分離並流入到前述過濾體內的濾液之 量的濾液流入量調整手段爲佳。 又’在上述污泥絮凝化裝置，前述濾液流入量調整手 段係藉由流入到前述過濾體內之濾液溢流之堰、調整供含 液率降低的污泥溢流之堰的至少其中一方的堰之高度的裝 置所構成爲佳。 [s] 201102354 且’本發明之污泥處理裝置’係具備有上述的各污泥 絮凝化裝置、和將被該污泥絮凝化裝置所絮凝化之污泥予 以固液分離的固液分離裝置，利用前述固液分離裝置，將 藉由前述污泥絮凝化裝置使含液率降低的污泥進行固液分 離。 〔發明效果〕 若依據本發明’因能夠清潔附著於過濾體之周圍的固 形分’所以，比起以往’能夠使更多量的液體流入到過濾 體內’並比起以往’能夠將含液率降低的污泥送入到固液 分離裝置。 【實施方式】 以下’根據圖面’詳細說明關於本發明的實施形態例 0 圖1係顯示污泥處理裝置的全體之部分斷面圖。在此 所示的污泥處理裝置具有：污泥絮凝化裝置1 ;和將被該 污泥絮凝化裝置1所絮凝化之污泥進行固液分離之固液分 離裝置2。 污泥絮凝化裝置1係如圖2所示，具有混和槽3，在 該混和槽3的側壁4 ’形成有供進行絮凝化前的污泥流入 到混和槽3內之污泥入口 5。在混和槽3的底壁6，形成 有供凝聚劑流入之凝聚劑注入口 7，在混和槽3的上壁8 ’固定支承有具減速機之馬達9。在此馬達9的輸出軸（ -8- 201102354 未圖示），固定連結有在混和槽3的內部朝上下方向延伸 的軸15的上端部，在該軸15，固定著配置於混和槽3內 之攪拌葉片1〇的上部的基端部。藉由馬達9作動，使軸 15被旋轉驅動於其中心軸線X的周圍，藉此，攪拌葉片 1〇被旋轉驅動於其中心軸線X的周圍。 作爲藉由圖1及圖2所示的污泥處理裝置能進行固液 分離之污泥，例如，可舉出下水道處理物、從養豬場等所 排出的廢水、被殘餚處理機所粉碎之廚餘、被細微切碎而 成爲泥狀之菜渣、廢棄牛乳、加水的廢棄豆腐、其他食品 加工排廢水等的有機系污泥，或鍍裝廢棄油、墨水廢棄液 、顏料料廢棄液、塗料廢棄液等之無機系污泥等，在此設 爲處理含有多量的水分之污泥者。該否泥可因應需要，在 水處理系統進行水處理後，儲存於未圖示的污泥槽，在此 對該污泥，添加例如由硫酸亞鐵所形成的凝聚促進劑。接 著，將該污泥藉由未圖示的測量裝置加以測量，然後將配 合固液分離裝置2的處理能力之量的污泥，從污泥入口 5 如箭號A所示的方式送入到混和槽3內。作爲此測量裝置 ’能夠使用例如，前述曰本特開2004-357615號公報等 所記載之測量槽、或定量粟浦等。送入到混和槽3之污泥 的含水率，例如爲9 9重量％左右。 另外’從凝聚劑注入口 7，如箭號B所示，對混和槽 3內’送入例如由高分子凝聚劑所形成的凝聚劑。藉此， 被送入到混和槽3內之污泥與凝聚劑，被受到馬達9所旋 轉驅動之攪拌葉片1 〇混合攪拌，藉此將污泥絮凝化。圖2 -9- 201102354 中，對該污泥賦予符號S。如此，攪拌葉片10用來作爲 攪拌被送入到混和槽3之污泥與凝聚劑’構成攪拌手段的 一例。本例的攪拌手段爲具備有固定於軸15，被馬達9所 旋轉驅動之攪拌葉片10。 如上述，已被絮凝化之污泥，如圖2的箭號I所示， 從混和槽3的污泥出口 11流出，通過圖1所示的導管12 ，移送至固液分離裝置2,在此被固液分離。由於用來對 污泥進行固液分離之具體結構與作用，以往以來爲習知， 在此省略其說明。作爲固液分離裝置2，能夠廣泛地採用 例如日本特開平 5 - 228695號公報或日本特開2004 _ 3 5 76 1 5號公報所記載的固液分離裝置等。 藉由固液分離裝置2從污泥所分離之水分即濾液，會 如圖1之箭號C所示，被承接構件1 3承接，而流下到排 出管14內。因在此濾液尙多少含有固形分，所以，如其 他的污泥一同再次進行水處理，接著再次被送入到污泥絮 凝化裝置1並加以絮凝化’進一步將該絮凝化後的污泥， 藉由固液分離裝置2進行脫水處理。亦可將流下於排出管 1 4內之濾液直接放流到川等加以廢棄。 另外’藉由固液分離裝置2分離水分後之含水量減少 的污泥’如圖1的箭號D所示’從固液分離裝置2排出。 進行脫水處理後的污泥的含水率爲例如8 0至8 5重量°/〇左 右。在圖1中’關於被固液分離裝置2所分離之濾液、和 含水量減少的污泥之圖示被省略。 如上述’本例的污泥絮凝化裝置丨具有：送入污泥與 -10- 201102354 凝聚劑之混和槽3;和用來攪拌被送入到該混和槽3的污 泥與凝聚劑之攪拌手段。當從該污泥絮凝化裝置輸送到固 液分離裝置之污泥的固形分濃度低時，則在固液分離裝置 無法有效率地從污泥分離水分。 因此，在本例的污泥絮凝化裝置1，將過濾體19設置 於混和槽3的內部，使得從被送到此處的污泥除去一部分 的水分，提高該污泥的固形分濃度，能將該濃度被提高的 污泥送入到固液分離裝置2。以下，明白說明關於該過濾 體1 9的具體結構。 如將圖2所示的過濾體19的一部分放大顯示的斷面 圖之圖3所示，過濾體19具有：藉由形成爲環狀之間隔 件2 0 ’於上下方向相互隔著間隔加以配置之複數個固定環 17;和配置於相鄰的固定環17之間的可動環18。 圖4係顯示1個固定環17、1個可動環18、和間隔件 20的外觀之斜視圖，圖5係顯示可動環18與固定環I?的 重疊狀態之沿著圖3的V— V線的斷面圖。如圖3至圖5 所示’複數個固定環17係與前述的軸15呈同心狀地配置 ’這些構件的中心軸線爲共通的軸線X。再者，在圖2中 ’簡略顯示固定環與可動環，並且省略間隔件的圖示。 如圖4及圖5所示，各固定環17係由形成爲圓環狀 之基部2 1、和從該基部2 i朝其半徑方向內側突出之複數 個圖式例爲3個的耳部22所構成，在該各耳部22形成有 安裝孔23。在這些安裝孔23與配置於相鄰的固定環I?之 間的小環狀間隔件2 0的中心孔，如圖2至圖5所示，分 ί S1 -11 - 201102354 別插通有拉條螺栓24。如圖2所示，對形成於該各拉條螺 栓24的上部之公螺紋，分別螺裝有螺帽25並加以栓緊。 另外，如圖2所示，在混和槽3的底壁6，對應於形 成於該底壁6之孔26，具有上壁27之倒杯形狀之台座28 藉由未圖示的螺栓與螺帽固定著。上述的各拉條螺栓24 的下部貫通此台座28的上壁27，對形成於各拉條螺栓24 的下部之公螺紋’分別螺裝螺帽29並加以栓緊。藉此， 經由間隔件2〇在上下方向相互隔著間隔地排列的多數個 固定環1 7被一體地固定連結，對混和槽3固定·。但，亦 可將各固定環1 7組裝成可相互地稍許滑動》 配置於相鄰的固定環17之間的可動環18係如圖4及 圖5所示’形成爲圓環狀，該可動環18可作動地配置於 相鄰的固定環17的環狀的基部21之間。並且，該各可動 環18比起前述的間隔件20，位於更靠近固定環的半徑方 向外側’藉此’可阻止可動環1 8從相鄰的固定環1 7之間 脫離。 如圖3所示’可動環18與固定環17的厚度t，T係 設定成例如1 m m至3 m m ’相鄰的固定環1 7之間之間隙g 係設定成較可動環18的厚度t更大，而在固定環17與可 動環1 8之間，形成有例如〇 . 1 m m至1 · 〇 m m左右的濾液流 入間隙g。 在如上述所構成之過濾體1 9的外部，如圖2所示， 配置著由前述的攪拌葉片1〇所構成之攪拌手段，而前述 的軸15被***於該過濾體19的內部。此軸I〗不會與過 -12- 201102354 濾體1 9接觸。 如圖2所示，在混和槽3的底壁6，位於與形成於該 底壁的孔26與台座28對齊的位置之排液管32，與台座 28 —同被前述的螺栓與螺帽所固定著。 如圖2的VII_VII線放大斷面圖之圖7、和圖2所示 ，在台座28的上壁27，固定著位於與形成於該上壁27之 中心孔對齊的位置之軸承33，在此軸承33，軸15的下部 可自由旋轉地嵌合著。藉此，可阻止軸15的下部朝水平 方向偏移作動之問題產生。又，在上壁27，形成有複數個 濾液流通孔3 4。 如前述，污泥與凝聚劑被送入到混和槽3內，此時， 藉由馬達9旋轉驅動攪拌葉片10,藉此攪拌污泥與凝聚劑 ，將污泥進行絮凝化。此時，在混和槽3內，配置著過濾 體19，在該過濾體19的固定環17與可動環18之間，形 成有圖3所示的微小的濾液流入間隙g，因此，混和槽3 內的已被絮凝化之污泥的水分會通過濾液流入間隙g而流 入到過濾體1 9的內部。濾液流入間隙g係設定成絮凝物 不會通過此部位程度的大小。 如上述，通過固定環1 7與可動環1 8之間的濾液流入 間隙g而流入到過濾體1 9內之水分即濾液會藉由其重力 ，在過瀘體19內朝下方流下，通過形成於台座28的上壁 27之濾液流通孔34，如圖2的箭號E所示，通過排液管 32。接著，此濾液如圖1的箭號F所示，從排液管32流 出，被濾液承接構件35承接後，如箭號J所示，朝下方 ί S1 -13- 201102354 流下。此濾液係與從固液分離裝置2所排出的濾液一同再 次進行水處理，接著再次被送到污泥絮凝化裝置1進行絮 凝化，或直接放流到川等。如此，通過污泥絮凝化裝置1 的過濾體1 9的固定環1 7與可動環1 8之間的濾液流入間 隙g而流入到過濾體19內之濾液，不會直接被送到固液 分離裝置2，而可排出到固液分離裝置2以外的部位。再 者，圖式中，流入到過濾體19內之濾液的圖示被省略。 如上述，因本例的污泥絮凝化裝置1具備有配置於混 和槽3內之過濾體1 9，該過濾體1 9具有相互隔著間隔地 配置之複數個固定環17、和配置於相鄰的固定環17之間 的可動環18，而用來攪拌被送到混和槽3之污泥與凝聚劑 的攪拌手段配置於過濾體外，所以，能夠將送入到混和槽 3之污泥加以絮凝化，然後將該被絮凝化之污泥中的液體 通過過濾體1 9的濾液流入間隙g流入到過濾體1 9內。因 此’能夠提局被送到混和槽3之污泥的固形分濃度，而可 將提高的該濃度之污泥送入到固液分離裝置2。藉此，能 夠利用固液分離裝置2，將被污泥絮凝化裝置1降低含液 率之污泥有效率地進行固液分離。 又’右污泥的固形分堵塞於過據體1 9的爐液流入間 隙g，或含有多量的水分之固形分緊密地附著於過濾體19 的周圍時，會造成不易有效率地使污泥中的水分流A到過 濾體19的內部。因此，本例的污泥絮凝化裝置1，構成爲 可防止爐液入間隙g之堵塞’並且能夠有效率地清潔附 著於過據體19的周圍之固形分。以下，詳細地說明宜亘 -14- 201102354 體的構成例。 圖8係用來說明複數個間隔件2 0與可動環1 8的位置 關係之平面圖。如該圖所示，當考量與複數個間隔件20 的外側面接觸之圓OC時，此圓OC的直徑ID1形成爲較 可動環1 8的內徑ID2小。因此，如前述，可動環18在相 鄰的固定環17之間形成可動，並且被阻止從相鄰的固定 環17之間脫離。再者，在這個例子，圓OC的中心係與固 定環17的中心軸線X —致。 另外，如圖5所示，可動環18的外徑OD1設定成較 固定環17的外徑OD2稍大。 且，圖9係沿著圖2的IX — IX線剖切，且省略過濾 體19及攪拌葉片10等的圖示之放大斷面圖，如該圖與圖 2所示，在前述的軸1 5，朝其半徑方向外側延伸的臂3 6 的基端部被固定，而在該臂36的前端部，藉由螺帽，固 定著由圓棒狀所構成之加壓構件38的上端部。加壓構件 3 8係如圖2所示，朝下方延伸，並且如圖3及圖5所示， 抵接於固定環17與可動環18的外周面，加壓該可動環18 。因此’如圖5所示，可動環1 8的中心軸線γ係對固定 環1 7 .的中心軸線’在偏移以6所示的稍許距離之狀態位 置著。 如前所說明’藉由馬達9作動，將軸1 5旋轉驅動， 來使攪拌葉片1 0旋轉於軸1 5的中心軸線X的周圍，與此 同時’經由臂36’被固定連結於軸15之加壓構件38也旋 轉於軸15的中心軸線X的周圍。相對於此，固定環17不 -15- 201102354 會旋轉。此時，因加壓構件38抵接於所有的可動環18與 所有的固定環17的外周面，所以，加壓構件38，如圖5 及圖6所示，與固定環17的外周面滑接且一邊加壓可動 環18的外周面，一邊旋轉於固定環17的中心軸線X的周 圍。藉此，可動環18係一邊其中心軸線Y如圖6的箭號 K所示，公轉於固定環17的中心軸線X的周圍一邊作動 。如此，可動環1 8在相鄰的固定環1 7之間積極地作動， 因此，能夠有效地排出流入到固定環1 7與可動環1 8之間 的濾液流入間隙g之污泥的固形分。再者，在圖示例，如 圖5所示般，當加壓構件3 8與間隔件2 0對向成相互相對 的狀態時，可動環1 8與該加壓構件38和間隔件20接觸 ，成爲被這些構件所夾持之狀態。 又，因加壓構件38，一邊滑接於可動環18與固定環 17的外周面，一邊旋轉於該固定環17的中心軸線X的周 圍，所以，包含附著於過濾體19的周圍的水分之固形分 可有效地被加壓構件3 8所刮取，不會有多量的固形分緊 密地附著於過濾體19的周圍。加壓構件38可發揮使可動 環18作動之作用、和清潔過濾體19的外周之作用。 如上述，因能夠防止濾液流入間隙g的堵塞，並且能 夠防止多量的固形分附著於過濾體1 9的周圍，所以，能 夠使從污泥所分離之多量的水分流入到過濾體1 9的內部 。如此，能夠藉由固液分離裝置2，使藉由污泥絮凝化裝 置1降低了含液率之污泥有效地進行固液分離。 亦可使用例如角棒或管等的其他適宜形態之加壓構件 -16- 201102354 ，來代替由圓棒所構成之加壓構件3 8。 如以上所述，本例的污泥絮凝化裝置1係具有以可動 環1 8的中心軸線Y公轉於固定環1 7的中心軸線X的周 圍的方式驅動該可動環18之驅動裝置，該驅動裝置係具 有：滑接於固定環17的外周面且一邊加壓可動環18的外 周面，一邊旋轉於固定環17的周圍，使可動環18公轉於 固定環17的中心軸線X的周圍之加壓構件38。並且，本 例的驅動裝置，除了上述加壓構件38外，尙具有馬達9、 和***到過濾體1 9內並被馬達9所旋轉驅動之軸1 5，加 壓構件3 8被固定連結於軸1 5，藉由該加壓構件3 8被馬達 9旋轉驅動於軸1 5的中心軸線X的周圍，使得可動環1 8 公轉於固定環17的中心軸線X的周圍。 又，如圖2所示，因攪拌葉片10也被固定於軸15, 藉由馬達9的作動，來旋轉驅動，所以，比起藉由個別的 馬達旋轉驅動攪拌葉片1 0與加壓構件3 8之情況，能夠將 污泥絮凝化裝置的構造簡單化，且能夠達到其成本降低。 又，在本例的污泥絮凝化裝置1，如圖5所示，可動 環18的寬度W1設定成較固定環17的寬度W2稍大。在 此所稱之固定環17的寬度W2，如圖5可得知，意味著該 固定環17的環狀的基部21的寬度。藉由將寬度W1，W2 如上述方式設定，在加壓構件3 8於一旋轉的期間，可動 環1 8必定會通過相鄰的固定環1 7的睡間，所以能夠更有 效地阻止固形物堵塞於濾液流入間隙g之問題產生。 如前述，加壓構件38兼作爲用來清潔過濾體19的周 -17- 201102354 圍之清潔構件，僅藉由此加壓構件38即可清掃過濾體19 的周圍，但，爲了更進一步提高其清掃效果，亦可採用清 掃過濾體19的外周部之獨立的清潔構件。 即，如圖9之2點鎖線所示，將分歧臂36A —體地固 定連結於臂36，再藉由螺帽將清潔構件40的上端部固定 於該分歧臂36A。在此所示的清潔構件40係藉由圓棒所 構成，該清潔構件40係與前述的加壓構件3 8同樣地朝下 方延伸，如圖5所示，抵接於所有的固定環1 7與所有的 可動環1 8的外周面。 如前述，馬達9作動，將軸15旋轉驅動，藉此經由 臂36與分歧臂3 6A固定於軸15之清潔構件40也與加壓 構件3 8 —同旋轉於軸1 5的中心軸線X的周圍。如此，清 潔構件40與加壓構件3 8同樣地，一邊滑接於固定環17 的外周面一邊旋轉，藉此能夠刮取附著於過濾體1 9的周 圍之固形物。 如上述，藉由設置一邊滑接於固定環17的外周面一 邊與加壓構件38 —同旋轉之清潔構件40 ’能夠提高對過 濾體19之清潔效果，可使更多量的濾液流入到過濾體19 的內部。 亦可採用其他適宜形態的清潔構件，來代替由圓棒所 形成之清潔構件4 0。例如，能夠採用如圖1 0所示，由芯 軸41、植設於該芯軸的表面之刷子纖維42所構成之清 潔構件4 0。在該清潔構件4 0的情況，該刷子纖維4 2滑接 在固定環17的外周面。 -18- 201102354 如前述，若依據本例的污泥絮凝化裝置1，可使流 到過濾體1 9內之水分的量增大，能夠將固形分濃度高 污泥送到固液分離裝置。但，當送到固液分離裝置之污 的固形分濃度過高時，亦會產生問題。例如，在將從污 絮凝化裝置1所排出的污泥，如圖1所示，藉由泵浦 送到固液分離裝置2之情況，當該污泥的固形分濃度過 時，則會有該污泥堵塞於泵浦44之虞產生。因此，本 的污泥絮凝化裝置1構成爲可調整從該絮凝化裝置1所 出並被送到固液分離裝置2之污泥的固形分濃度。以下 說明其具體的構成例。 如圖1及圖2所示，在混和槽3的內部設有堰45, 水率降低的污泥溢流於該堰4 5，被送到固液分離裝置2 另外，流入到過濾體1 9內之濾液流動於排液管32 ，從該排液管3 2流出，但如圖1及圖1 1所示，在此排 管32的濾液排出口 47側，嵌合著濾液溢流管46。從排 管32的瀘液排出口 47所排出的瀘液進一步流動於濾液 流管46內，從該濾液溢流管46的上端的出口開口 48 外部溢流，而被濾液承接構件3 5所承接。如此，濾液 流管46構成供濾液溢流之堰。 如圖1 1所示，在濾液溢流管4 6的內周面形成有母 紋，在該濾液溢流管46所嵌合的排液管32的外周面， 成有與該母螺紋螺旋卡合之公螺紋，藉由使該濾液溢流 46旋轉於其中心軸線的周圍，能夠調整濾液溢流管46 高度即該出口開口 48的高度Η1。相對於此，圖1所示 入 的 泥 泥 44 高 例 排 含 〇 內 液 液 溢 朝 溢 螺 形 管 的 的 -19 - 201102354 前述的堰45的上端的高度H2爲一定。藉由使濾液溢流管 46旋轉。能夠調整濾液溢流管46的出口開口 48對堰45 的上端的高度H2之高度H1。 在此，當需要提高被送到固液分離裝置2之污泥的固 形分濃度時，旋轉濾液溢流管46，降低該出口開口 48的 高度H1。藉以降低濾液溢流管46對堰45的高度H2之高 度H1者。藉此，因從濾液溢流管46的出口開口 48，溢 流濾液之量增加’所以’流入到過濾體1 9之濾液之量增 大，能夠提高從污泥絮凝化裝置1移送到固液分離裝置2 之污泥的固形分濃度。 相反地，當不太需要提高被送到固液分離裝置2之污 泥的固形分濃度時，使濾液溢流管46朝與上述情況相反 地方向旋轉，使該濾液溢流管46朝上方移動，增高濾液 溢流管46對堰46的高度H2之高度H1。藉此，從濾液溢 流管46的出口開口 48，溢流濾液之量減少，所以，流入 到過濾體1 9之濾液之量減少，能夠降低從污泥絮凝化裝 置1移送到固液分離裝置2之污泥的固形分濃度。 因應污泥的性狀與泵浦44的性能等，如上述，能夠 改變流出污泥絮凝化裝置1之污泥的固形分濃度，所以不 論何種性質的污泥，皆可無阻礙地送到固液分離裝置2， 將該污泥進行處理。 在上述的例子，藉由調整作爲堰來發揮功能之濾液溢 流管46的高度Η1，來調整流入到過濾體1 9內之濾液之 量，但亦可構成爲可調整堰45的高度Η2，或可一同調整 -20- 19 201102354 該堰45與濾液溢流管46的高度，來調整流入到過濾體 內之濾液之量。 如上述’本例的污泥絮凝化裝置1具備有調整從被 入到混和槽3之污泥分離並流入到過濾體1 9內之濾液 量的濾液流入量調整手段’並且該濾液流入量調整手段 藉由供流入到過濾體1 9內之濾液溢流之作爲堰之一例 濾液溢流管46、和調整供含液率降低的污泥溢流之堰 的至少其中一方的堰之高度的裝置來構成。亦可採用濾 溢流管46以外之堰。 在上述的具體例，採用與固定環17不同的其他構 之小環狀構件來作爲間隔件2 0，但，亦可將間隔件與固 環一體地形成。例如，將間隔件2 0藉由使該間隔件2 0 體地形成於隣接的2個固定環中之其中一方的固定環17 使固定環17與間隔件20作爲1個零件來構成。更具體 言，當固定環17與間隔件20皆藉由金屬來形成時，能 藉由溶接來將這些構件一體化，或藉由鑄造，將這些構 一體成形。或，對材料進行切削加工，來製造成爲一體 固定環1 7與間隔件20。又，當固定環1 7與間隔件20 藉由樹脂來構成時，能夠將這些構件藉由成形模來製造 爲一體之成形品。 又，在前述的各具體例，在軸線方向上相鄰的固定 1 7之間配置有1個可動環1 8，但，亦可在軸線方向相 的固定環17之間配置複數個可動環18。在相鄰的固定 之間至少要配置1個可動環。 送 之 是 的 45 液 件 定 而 夠 件 之 皆 作 環 鄰 環 -21 · 201102354 如以上所說明的污泥絮凝化裝置1，其過濾體1 9的固 定環17排列於上下方向，而其中心軸線X延伸於上下方 向，但，亦可以該中心軸線成爲傾斜的狀態之方式配置過 濾體19。即，構成流入到過濾體19內之濾液可藉由自重 來從過濾體19的下部朝外部流出之結構即可。 又，以上說明過之各結構，亦適用於：如日本特開平 9- 22〇596號公報所揭示的這種將污泥絮凝化裝置的混和 槽區隔成第1的攪拌室與第2的攪拌室，將污泥與凝聚促 進劑送入到該第1的攪拌室後將其予以攪拌，接著，將該 污泥送入到第2的攪拌室，並且對該第2的攪拌室供給凝 聚劑，再將其予以攪拌，藉此將污泥絮凝化之污泥絮凝化 裝置。在該污泥絮凝化裝置的情況，例如，在該第2的攪 拌室設置過濾體，與前述相同的結構，將流入到過濾體內 之濾液排出到固液分離裝置以外的部位即可。 【圖式簡單說明】 - 圖1係顯示污泥處理裝置的一例之部分斷面圖。 圖2係污泥絮凝化裝置的放大斷面圖。 圖3係放大顯示圖2所示的過濾體之一部分的斷面圖。 圖4係顯示1個固定環、1個可動環、間隔件之斜視 圖。 圖5係圖3的V—V線斷面圖。 圖6係顯示加壓構件從位於圖5之位置旋轉大約90° 時的樣子之與圖5相同的斷面圖。 -22- 201102354 圖7係圖2的VII— VII線放大斷面圖。 圖8係說明複數個間隔件與可動環的位置關係之平面 圖。 圖9係圖2的IX — IX線放大斷面圖。 圖10係顯示清潔構件其他例之斷面圖。 圖1 1係顯示圖1所示的排液管與濾液溢流管的放大 斷面圖。 【主要元件符號說明】 1 :污泥絮凝化裝置 2 :固液分離裝置 3 :混和槽 9 :馬達 1 〇 :攪拌葉片 15 :軸 17 :固定環 1 8 :可動環 19 :過濾體 3 8 :加壓構件 40 :清潔構件 45 :堰 D Ο 1、D Ο 2 :外徑 HI、H2 :高度 X、Y :中心軸線 -23-201102354 VI. Description of the Invention: [Technical Field] The present invention relates to a sludge flocculation device which is subjected to flocculation prior to the treatment of sludge treated by a solid-liquid separation device, and has the same Mud flocculation device and sludge treatment device for solid-liquid separation device. [Prior Art] Conventionally, a sludge treatment apparatus for solid-liquid separation of sludge flocculated by a sludge flocculation apparatus by a solid-liquid separation apparatus is known. Such a device is disclosed in Japanese Laid-Open Patent Publication No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. When the sludge is treated by the sludge treatment device, when the solid concentration (float concentration) of the sludge sent to the solid-liquid separation device is low, the amount of solids that can be separated from the sludge is Reduced, it is impossible to effectively separate the sludge into solid and liquid. Therefore, 'it is proposed to separate a part of the liquid from the sludge, and to increase the solid concentration of the sludge', which will increase the concentration of the sludge to the sludge flocculation device of the solid-liquid separation device (refer to Japanese Patent Laid-Open No. 2〇07- Bulletin No. 54684). The structure of the sludge flocculation device of the prior art proposed has a mixing tank in which sludge and a coagulant are fed, a filter body disposed in the mixing tank, and a propeller disposed in the filter body, and is filtered. The body has a plurality of fixing rings arranged at intervals and a movable ring disposed between the adjacent fixing rings, and the sludge sent to the mixing tank is flocculated, and the flocculated dirt is further smeared The liquid in the mud flows into the gap through the filtrate of the filtrate into the gap [S 1 -5- 201102354 into the filter body. Thereby, the sludge having the increased concentration can be sent to the solid-liquid separation device. However, according to the conventional sludge flocculation apparatus, since the flocculation in the mixing tank, that is, the solid content of the sludge closely adheres to the periphery of the filter body, the liquid in the sludge does not easily flow into the gap through the filtrate of the filter body. The problem is that the filter body is not able to separate a sufficient amount of liquid from the sludge. [Problem to be Solved by the Invention] The present invention has been developed in order to solve the above problems of the prior art, and an object of the invention is to provide a sludge separation before being treated by a solid-liquid separation device. A sludge flocculation device of a larger amount of liquid, and a sludge treatment device having the sludge flocculation device and the solid-liquid separation device (a means for solving the problem) The sludge flocculation device of the present invention is characterized in that a mixing tank for feeding sludge and a coagulant; and a filter body provided in the mixing tank and having a plurality of fixing rings arranged at intervals with each other and a movable ring disposed between the adjacent fixing rings a stirring means disposed on the outside of the filter to agitate the sludge and the coagulant fed to the mixing tank; and driving the movable ring to revolve the central axis of the movable ring around the central axis of the fixed ring a driving device, wherein an outer diameter of the movable ring is set to be larger than an outer diameter of the fixing ring -6 - 201102354, and the driving device has: a sliding ring connected to the fixing ring Bureau I® 'and pressing the outer peripheral surface side of the movable ring, while rotating the fixing ring in a circumferential ι @' ring to the movable pressing member to revolve about the central axis of the retaining ring. Further, in the sludge flocculation device, the drive device includes a motor and a shaft that is inserted into the filter body and is rotationally driven by the motor, and the pressurizing member is fixedly coupled to the shaft. It is preferable to rotate the pressing member around the central axis of the shaft by the motor to revolve the movable ring around the central axis of the fixed ring. Further, in the above sludge flocculation device, the width of the movable ring is set to be larger than the width of the fixed ring. Further, the sludge flocculation device is preferably provided with a cleaning member that rotates together with the pressing member while being slidably attached to the outer peripheral surface of the fixing ring. Further, in the sludge flocculation apparatus, the stirring means is preferably provided with a stirring blade that is fixed to the shaft and that is rotationally driven by the motor. Further, in the sludge flocculation apparatus, it is preferable to adjust the filtrate inflow amount adjusting means for adjusting the amount of the filtrate which is separated from the sludge which is sent to the mixing tank and flows into the filter body. Further, in the sludge flocculation apparatus, the filtrate inflow amount adjusting means adjusts at least one of the enthalpy of the sludge overflow after the filtrate overflow into the filter body and the sludge overflow is reduced. The height of the device is better. [s] 201102354 The 'sludge treatment device of the present invention' is provided with the above-described sludge flocculation device and a solid-liquid separation device for solid-liquid separation of sludge flocculated by the sludge flocculation device The sludge having a reduced liquid content is subjected to solid-liquid separation by the sludge flocculation device by the solid-liquid separator. [Effect of the Invention] According to the present invention, "the solid content adhered to the periphery of the filter body can be cleaned, so that a larger amount of liquid can flow into the filter body than in the prior art, and the liquid content can be compared with the conventional one. The reduced sludge is fed to the solid-liquid separation device. [Embodiment] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a partial cross-sectional view showing the entire sludge processing apparatus. The sludge treatment apparatus shown here includes a sludge flocculation apparatus 1 and a solid-liquid separation apparatus 2 that performs solid-liquid separation of sludge flocculated by the sludge flocculation apparatus 1. As shown in Fig. 2, the sludge flocculation apparatus 1 has a mixing tank 3, and a sludge inlet 5 into which the sludge before flocculation flows into the mixing tank 3 is formed in the side wall 4' of the mixing tank 3. A coagulant injection port 7 through which a coagulant flows in is formed in the bottom wall 6 of the mixing tank 3, and a motor 9 having a reducer is fixedly supported by the upper wall 8' of the mixing tank 3. In the output shaft of the motor 9 (not shown in -8 to 201102354), the upper end portion of the shaft 15 extending in the vertical direction inside the mixing tank 3 is fixedly coupled, and the shaft 15 is fixedly disposed in the mixing tank 3. The base end portion of the upper portion of the blade 1 is agitated. By the action of the motor 9, the shaft 15 is rotationally driven around its central axis X, whereby the agitating blades 1 are rotationally driven around their central axis X. The sludge that can be subjected to solid-liquid separation by the sludge treatment apparatus shown in FIG. 1 and FIG. 2, for example, is a sewage treatment product, waste water discharged from a pig farm, or the like, and is crushed by a food processing machine. The kitchen waste, the organic sludge that has been chopped and shredded into muddy vegetable waste, discarded cow's milk, added waste tofu, other food processing waste water, or plating waste oil, ink waste liquid, pigment waste liquid Inorganic sludge, such as a paint waste liquid, is treated as a sludge containing a large amount of water. The mud may be stored in a sludge tank (not shown) after being subjected to water treatment in the water treatment system as needed, and a coagulation accelerator formed of, for example, ferrous sulfate may be added to the sludge. Next, the sludge is measured by a measuring device (not shown), and then the sludge which is combined with the processing capacity of the solid-liquid separating device 2 is sent from the sludge inlet 5 as indicated by the arrow A. In the mixing tank 3. For example, the measurement tank described in the above-mentioned Japanese Patent Publication No. 2004-357615, or the like, or the like, can be used. The water content of the sludge fed to the mixing tank 3 is, for example, about 99% by weight. Further, from the aggregating agent injection port 7, as shown by an arrow B, a coagulant formed of, for example, a polymer flocculating agent is supplied into the mixing tank 3. Thereby, the sludge and the coagulant which are fed into the mixing tank 3 are mixed and stirred by the stirring blade 1 which is driven by the rotation of the motor 9, whereby the sludge is flocculated. In Figure 2-9-201102354, the sludge is given the symbol S. As described above, the agitating blade 10 is used as an example of a stirring means for agitating the sludge and the coagulant which are fed into the mixing tank 3. The stirring means of this example is provided with a stirring blade 10 which is fixed to the shaft 15 and is rotationally driven by the motor 9. As described above, the sludge which has been flocculated, as shown by the arrow I in Fig. 2, flows out from the sludge outlet 11 of the mixing tank 3, and is transferred to the solid-liquid separation device 2 through the conduit 12 shown in Fig. 1, This is separated by solid and liquid. The specific structure and action for solid-liquid separation of sludge have been conventionally known, and the description thereof is omitted here. As the solid-liquid separation device 2, for example, a solid-liquid separation device described in Japanese Laid-Open Patent Publication No. Hei. No. Hei. No. Hei. The filtrate, which is separated from the sludge by the solid-liquid separation device 2, is taken up by the receiving member 13 as shown by an arrow C in Fig. 1, and flows down into the discharge pipe 14. Since the filtrate contains a solid content, the other sludge is again subjected to water treatment, and then sent to the sludge flocculation device 1 and flocculated again to further the flocculated sludge. The dehydration treatment is performed by the solid-liquid separation device 2. The filtrate flowing down the discharge pipe 14 can also be discharged directly to the river or the like to be discarded. Further, the sludge having a reduced water content after the moisture is separated by the solid-liquid separation device 2 is discharged from the solid-liquid separation device 2 as indicated by an arrow D in Fig. 1 . The water content of the sludge subjected to the dehydration treatment is, for example, 80 to 85 weight / 〇. In Fig. 1, the illustration of the filtrate separated by the solid-liquid separation device 2 and the sludge having a reduced water content is omitted. The sludge flocculation device of the present embodiment has the following: a mixing tank 3 for feeding sludge and a -10-201102354 coagulant; and agitating the sludge and the coagulant for agitating the mixture to be fed to the mixing tank 3. means. When the solid content concentration of the sludge transported from the sludge flocculation device to the solid-liquid separation device is low, the solid-liquid separation device cannot efficiently separate water from the sludge. Therefore, in the sludge flocculation apparatus 1 of the present example, the filter body 19 is installed in the inside of the mixing tank 3, so that a part of the moisture is removed from the sludge sent thereto, and the solid content concentration of the sludge can be increased. The sludge having the increased concentration is sent to the solid-liquid separation device 2. Hereinafter, the specific structure of the filter body 19 will be clearly explained. As shown in FIG. 3, which is a cross-sectional view showing a part of the filter body 19 shown in FIG. 2 in an enlarged manner, the filter body 19 has a spacer 20 0' formed in a ring shape and arranged at intervals in the vertical direction. a plurality of fixing rings 17; and a movable ring 18 disposed between the adjacent fixing rings 17. 4 is a perspective view showing the appearance of one fixed ring 17, one movable ring 18, and the spacer 20, and FIG. 5 is a view showing the overlapping state of the movable ring 18 and the fixed ring I? along the V-V of FIG. Sectional view of the line. As shown in Figs. 3 to 5, the plurality of fixing rings 17 are arranged concentrically with the aforementioned shaft 15, and the central axes of these members are the common axis X. Further, the fixing ring and the movable ring are schematically shown in Fig. 2, and the illustration of the spacer is omitted. As shown in FIGS. 4 and 5, each of the fixing rings 17 is formed of an annular portion 2 1 and a plurality of ears 22 extending from the base portion 2 i toward the inner side in the radial direction. In this configuration, the attachment holes 23 are formed in the respective ear portions 22. The central hole of the small annular spacer 20 between the mounting hole 23 and the adjacent fixing ring I?, as shown in FIG. 2 to FIG. 5, is divided into LY S1 -11 - 201102354 Bar bolts 24. As shown in Fig. 2, the male nut formed on the upper portion of each of the pull bolts 24 is screwed with a nut 25 and bolted. Further, as shown in FIG. 2, in the bottom wall 6 of the mixing tank 3, corresponding to the hole 26 formed in the bottom wall 6, the pedestal 28 having the inverted cup shape of the upper wall 27 is provided by bolts and nuts not shown. Fixed. The lower portion of each of the above-described bracing bolts 24 passes through the upper wall 27 of the pedestal 28, and the nut 29 is screwed to the male screw apos formed at the lower portion of each of the bracing bolts 24, respectively. Thereby, a plurality of fixing rings 17 that are arranged at intervals in the vertical direction via the spacer 2 are integrally fixedly coupled to each other, and the mixing groove 3 is fixed. However, each of the fixing rings 17 may be assembled so as to be slightly slidable with each other. The movable ring 18 disposed between the adjacent fixing rings 17 is formed in an annular shape as shown in FIGS. 4 and 5, and is movable. The ring 18 is movably disposed between the annular bases 21 of adjacent retaining rings 17. Further, each of the movable rings 18 is located closer to the outer side in the radial direction of the fixed ring than the spacer 20 described above, thereby preventing the movable ring 18 from being detached from the adjacent fixed ring 17. As shown in FIG. 3, the thickness t of the movable ring 18 and the fixing ring 17 is set to, for example, 1 mm to 3 mm. The gap g between the adjacent fixing rings 17 is set to be larger than the thickness t of the movable ring 18. Further, between the fixed ring 17 and the movable ring 18, a filtrate of, for example, about 1 mm to 1 mm is formed into the gap g. As shown in Fig. 2, the stirring means constituted by the agitating blades 1A described above is disposed outside the filter body 19 constructed as described above, and the shaft 15 is inserted into the inside of the filter body 19. This axis I 〗 will not be in contact with -12- 201102354 filter body 9. As shown in Fig. 2, in the bottom wall 6 of the mixing tank 3, the drain pipe 32 located at a position aligned with the hole 26 formed in the bottom wall and the pedestal 28 is the same as the pedestal 28 by the aforementioned bolt and nut. Fixed. As shown in Fig. 7 and Fig. 2, which are enlarged cross-sectional views of the line VII_VII of Fig. 2, the upper wall 27 of the pedestal 28 is fixed with a bearing 33 located at a position aligned with the center hole formed in the upper wall 27, here. The bearing 33 and the lower portion of the shaft 15 are rotatably fitted. Thereby, the problem that the lower portion of the shaft 15 is displaced in the horizontal direction can be prevented from occurring. Further, a plurality of filtrate flow holes 34 are formed in the upper wall 27. As described above, the sludge and the aggregating agent are fed into the mixing tank 3. At this time, the stirring blade 10 is rotationally driven by the motor 9, whereby the sludge and the coagulant are stirred to flocculate the sludge. At this time, the filter body 19 is disposed in the mixing tank 3, and a minute filtrate inflow gap g shown in FIG. 3 is formed between the fixed ring 17 of the filter body 19 and the movable ring 18, and therefore, the mixing tank 3 is formed. The moisture of the already flocculated sludge flows into the gap 1 through the filtrate and flows into the inside of the filter body 19. The filtrate inflow gap g is set to such a degree that the floc does not pass through the portion. As described above, the filtrate which flows into the gap 1 through the filtrate between the fixed ring 17 and the movable ring 18 and flows into the filter body 9 will flow down in the over-body 19 by gravity, and form a filtrate. The filtrate flow hole 34 of the upper wall 27 of the pedestal 28 passes through the drain pipe 32 as indicated by an arrow E in FIG. Next, this filtrate flows out from the liquid discharge pipe 32 as shown by an arrow F in Fig. 1, and is taken up by the filtrate receiving member 35, and as shown by an arrow J, flows down ί S1 -13 - 201102354. This filtrate is subjected to water treatment again together with the filtrate discharged from the solid-liquid separation device 2, and then sent to the sludge flocculation device 1 for flocculation, or directly discharged to Sichuan. Thus, the filtrate which flows into the filter body 19 through the filtrate g between the fixed ring 17 of the filter body 1 of the sludge flocculation device 1 and the movable ring 18 flows into the filter body 19, and is not directly sent to the solid-liquid separation. The device 2 can be discharged to a portion other than the solid-liquid separation device 2. Further, in the drawings, the illustration of the filtrate flowing into the filter body 19 is omitted. As described above, the sludge flocculation apparatus 1 of the present embodiment includes the filter body 9 disposed in the mixing tank 3, and the filter body 19 has a plurality of fixing rings 17 arranged at intervals, and is disposed in the phase The movable ring 18 between the adjacent fixing rings 17 and the stirring means for agitating the sludge and the coagulant sent to the mixing tank 3 are disposed outside the filter, so that the sludge fed to the mixing tank 3 can be applied The flocculation is carried out, and then the liquid in the flocculated sludge flows into the filter body 9 through the filtrate of the filtrate 19 into the gap g. Therefore, the solid concentration of the sludge sent to the mixing tank 3 can be extracted, and the increased sludge of this concentration can be sent to the solid-liquid separation device 2. As a result, the solid-liquid separation device 2 can be used to efficiently perform solid-liquid separation of the sludge having the liquid content reduced by the sludge flocculation device 1. Further, when the solid portion of the right sludge is clogged with the furnace liquid flowing into the gap g of the body 19 or the solid content containing a large amount of moisture is closely attached to the periphery of the filter body 19, the sludge is not easily and efficiently The water flow A in the inside of the filter body 19 is. Therefore, the sludge flocculation apparatus 1 of the present embodiment is configured to prevent the clogging of the furnace liquid into the gap g and to efficiently clean the solid portion attached to the periphery of the passing body 19. Hereinafter, a configuration example of the Yi-in-14-201102354 body will be described in detail. Fig. 8 is a plan view showing the positional relationship between a plurality of spacers 20 and a movable ring 18. As shown in the figure, when the circle OC which is in contact with the outer side surface of the plurality of spacers 20 is considered, the diameter ID1 of the circle OC is formed to be smaller than the inner diameter ID2 of the movable ring 18. Therefore, as described above, the movable ring 18 is movable between the adjacent fixed rings 17, and is prevented from being detached from between the adjacent fixed rings 17. Further, in this example, the center of the circle OC coincides with the central axis X of the fixed ring 17. Further, as shown in Fig. 5, the outer diameter OD1 of the movable ring 18 is set to be slightly larger than the outer diameter OD2 of the fixed ring 17. 9 is cut along line IX-IX of FIG. 2, and an enlarged cross-sectional view of the filter body 19, the stirring blade 10, and the like is omitted, as shown in FIG. 2 and FIG. 5, the base end portion of the arm 36 extending outward in the radial direction is fixed, and the upper end portion of the pressing member 38 composed of a round bar shape is fixed to the front end portion of the arm 36 by a nut. As shown in Fig. 2, the pressing member 38 extends downward, and as shown in Figs. 3 and 5, abuts against the outer circumferential surfaces of the fixed ring 17 and the movable ring 18, and presses the movable ring 18. Therefore, as shown in Fig. 5, the central axis γ of the movable ring 18 is positioned at a slight distance from the center axis ' of the fixed ring 17 by a slight distance indicated by 6. As described above, the shaft 15 is rotationally driven by the motor 9 to rotate the agitating blade 10 around the central axis X of the shaft 15 while being "fixedly coupled to the shaft 15 via the arm 36'. The pressing member 38 is also rotated around the central axis X of the shaft 15. In contrast, the retaining ring 17 does not rotate -15-201102354. At this time, since the pressing member 38 abuts against the outer peripheral surfaces of all the movable rings 18 and all the fixing rings 17, the pressing member 38 is slid to the outer peripheral surface of the fixing ring 17 as shown in FIGS. 5 and 6 . The outer peripheral surface of the movable ring 18 is pressed while being rotated around the central axis X of the fixed ring 17. Thereby, the movable ring 18 is actuated while being rotated around the central axis X of the fixed ring 17 while its central axis Y is as indicated by an arrow K in Fig. 6 . Thus, the movable ring 18 is actively actuated between the adjacent fixed rings 17 and, therefore, the solid content of the sludge flowing into the gap g flowing between the fixed ring 17 and the movable ring 18 can be efficiently discharged. . Further, in the illustrated example, as shown in FIG. 5, when the pressing member 38 and the spacer 20 are opposed to each other, the movable ring 18 is in contact with the pressing member 38 and the spacer 20. It is in a state of being held by these members. In addition, the pressing member 38 is slidably attached to the outer peripheral surface of the movable ring 18 and the fixed ring 17, and rotates around the central axis X of the fixed ring 17, so that moisture adhering to the periphery of the filter body 19 is included. The solid component can be effectively scraped off by the pressing member 38 without a large amount of solid matter adhering closely to the periphery of the filter body 19. The pressing member 38 functions to actuate the movable ring 18 and to clean the outer periphery of the filter body 19. As described above, since the clogging of the filtrate into the gap g can be prevented, and a large amount of solid matter can be prevented from adhering to the periphery of the filter body 19, a large amount of moisture separated from the sludge can flow into the inside of the filter body 19. . In this manner, the solid-liquid separation device 2 can effectively perform solid-liquid separation of the sludge having the liquid content reduced by the sludge flocculation device 1. Instead of the pressing member 38 composed of a round bar, a pressing member -16-201102354 of another suitable form such as a corner bar or a tube may be used. As described above, the sludge flocculation apparatus 1 of the present embodiment has a driving device for driving the movable ring 18 in such a manner that the central axis Y of the movable ring 18 revolves around the central axis X of the fixed ring 17. The apparatus is slidably attached to the outer peripheral surface of the fixed ring 17, and presses the outer peripheral surface of the movable ring 18, and rotates around the fixed ring 17, and revolves the movable ring 18 around the central axis X of the fixed ring 17. Compression member 38. Further, in addition to the above-described pressing member 38, the driving device of the present embodiment has a motor 9 and a shaft 15 that is inserted into the filter body 9 and is rotationally driven by the motor 9, and the pressing member 38 is fixedly coupled to The shaft 15 is rotationally driven by the motor 9 around the central axis X of the shaft 15 by the pressing member 38, so that the movable ring 18 revolves around the central axis X of the fixed ring 17. Further, as shown in FIG. 2, the agitating blade 10 is also fixed to the shaft 15, and is driven to rotate by the operation of the motor 9, so that the agitating blade 10 and the pressing member 3 are driven by rotation by an individual motor. In the case of 8, the structure of the sludge flocculation device can be simplified, and the cost can be reduced. Further, in the sludge flocculation apparatus 1 of the present embodiment, as shown in Fig. 5, the width W1 of the movable ring 18 is set to be slightly larger than the width W2 of the fixed ring 17. The width W2 of the fixing ring 17, which is referred to herein, as seen in Fig. 5, means the width of the annular base portion 21 of the fixing ring 17. By setting the widths W1, W2 as described above, the movable ring 18 is surely passed through the sleeping space of the adjacent fixing ring 17 during the rotation of the pressing member 38, so that the solid matter can be more effectively prevented. The problem of clogging in the filtrate flowing into the gap g arises. As described above, the pressing member 38 also serves as a cleaning member for cleaning the circumference of the filter body 19, and the periphery of the filter body 19 can be cleaned only by the pressing member 38, but in order to further improve it As the cleaning effect, an independent cleaning member that cleans the outer peripheral portion of the filter body 19 can also be used. That is, as shown by the 2-point lock line of Fig. 9, the branch arm 36A is integrally fixedly coupled to the arm 36, and the upper end portion of the cleaning member 40 is fixed to the branch arm 36A by a nut. The cleaning member 40 shown here is constituted by a round bar which extends downward as in the above-described pressing member 38, and abuts against all the fixing rings 17 as shown in FIG. With the outer peripheral surface of all movable rings 18. As described above, the motor 9 is actuated to rotationally drive the shaft 15, whereby the cleaning member 40 fixed to the shaft 15 via the arm 36 and the branch arm 36A is also rotated with the pressing member 38 to the central axis X of the shaft 15. around. In the same manner as the pressing member 38, the cleaning member 40 rotates while being slidably attached to the outer peripheral surface of the fixing ring 17, whereby the solid matter adhering to the periphery of the filter body 19 can be scraped off. As described above, by providing the cleaning member 40' which is rotatably rotated with the pressing member 38 while being slidably attached to the outer peripheral surface of the fixing ring 17, the cleaning effect on the filter body 19 can be improved, and a larger amount of filtrate can flow into the filtration. The inside of body 19. Instead of the cleaning member 40 formed by the round bar, other suitable cleaning members may be employed. For example, as shown in Fig. 10, a cleaning member 40 composed of a core shaft 41 and brush fibers 42 implanted on the surface of the mandrel can be used. In the case of the cleaning member 40, the brush fiber 42 is slidably attached to the outer peripheral surface of the fixing ring 17. -18- 201102354 As described above, according to the sludge flocculation apparatus 1 of the present example, the amount of moisture flowing into the filter body 19 can be increased, and the sludge having a high solid content concentration can be sent to the solid-liquid separation device. However, when the concentration of the solid matter supplied to the solid-liquid separation device is too high, problems also occur. For example, in the case where the sludge discharged from the soil flocculation device 1 is sent to the solid-liquid separation device 2 by pumping as shown in FIG. 1, when the solid concentration of the sludge is excessive, the sludge is present. The sludge is clogged and generated after the pump 44. Therefore, the sludge flocculation apparatus 1 of the present invention is configured to adjust the solid concentration of the sludge which is discharged from the flocculation apparatus 1 and sent to the solid-liquid separation apparatus 2. The specific configuration example will be described below. As shown in Fig. 1 and Fig. 2, a crucible 45 is provided inside the mixing tank 3, and sludge having a reduced water rate overflows to the crucible 45, and is sent to the solid-liquid separation device 2, and flows into the filter body 19 The filtrate inside flows into the liquid discharge pipe 32 and flows out from the liquid discharge pipe 32. However, as shown in Fig. 1 and Fig. 11, on the side of the filtrate discharge port 47 of the discharge pipe 32, a filtrate overflow pipe 46 is fitted. . The sputum discharged from the sputum discharge port 47 of the discharge pipe 32 further flows into the filtrate flow pipe 46, overflows from the outside of the outlet opening 48 at the upper end of the filtrate overflow pipe 46, and is received by the filtrate receiving member 35. . Thus, the filtrate flow tube 46 constitutes a buffer for the filtrate to overflow. As shown in Fig. 11, a mother pattern is formed on the inner peripheral surface of the filtrate overflow pipe 46, and the outer peripheral surface of the liquid discharge pipe 32 to which the filtrate overflow pipe 46 is fitted is formed with the female thread spiral card. The male thread can be adjusted by rotating the filtrate overflow 46 around its central axis to adjust the height of the filtrate overflow pipe 46, that is, the height Η1 of the outlet opening 48. On the other hand, in the case of the mud mud 44 shown in Fig. 1, the liquid liquid overflows into the spiral solenoid tube -19 - 201102354. The height H2 of the upper end of the above-mentioned crucible 45 is constant. The filtrate overflow pipe 46 is rotated. The height H1 of the height H2 of the upper end of the outlet opening 48 of the filtrate overflow pipe 46 to the crucible 45 can be adjusted. Here, when it is necessary to increase the solid concentration of the sludge sent to the solid-liquid separating device 2, the filtrate overflow pipe 46 is rotated to lower the height H1 of the outlet opening 48. Thereby, the height H1 of the height H2 of the filtrate overflow pipe 46 to the crucible 45 is lowered. Thereby, since the amount of the overflow filtrate is increased from the outlet opening 48 of the filtrate overflow pipe 46, the amount of the filtrate flowing into the filter body 19 is increased, and the transfer from the sludge flocculation device 1 to the solid solution can be improved. The solids concentration of the sludge of the separation device 2. Conversely, when it is not necessary to increase the solid content concentration of the sludge sent to the solid-liquid separation device 2, the filtrate overflow pipe 46 is rotated in the opposite direction to the above case, and the filtrate overflow pipe 46 is moved upward. , increasing the height H1 of the height H2 of the filtrate overflow pipe 46 to the crucible 46. Thereby, the amount of the overflow filtrate is reduced from the outlet opening 48 of the filtrate overflow pipe 46, so that the amount of the filtrate flowing into the filter body 19 is reduced, and the transfer from the sludge flocculation device 1 to the solid-liquid separation device can be reduced. 2 The solid concentration of the sludge. In view of the properties of the sludge and the performance of the pump 44, as described above, the solid content concentration of the sludge flowing out of the sludge flocculation device 1 can be changed, so that sludge of any nature can be delivered to the solid without hindrance. The liquid separation device 2 processes the sludge. In the above example, the amount of the filtrate flowing into the filter body 19 is adjusted by adjusting the height Η1 of the filtrate overflow pipe 46 functioning as a weir, but the height Η2 of the weir 45 can be adjusted. Alternatively, the height of the helium 45 and the filtrate overflow pipe 46 may be adjusted to adjust the amount of the filtrate flowing into the filter body -20- 19 201102354. In the sludge flocculation apparatus 1 of the present example, the filtrate inflow amount adjustment means for adjusting the amount of the filtrate which is separated from the sludge which has entered the mixing tank 3 and flows into the filter body 9 is provided, and the filtrate inflow amount is adjusted. The means for arranging the filtrate overflow pipe 46 and the height of at least one of the enthalpy of the sludge overflow by the sludge overflowing into the filtrate 1 9 Come to form. It is also possible to use a filter other than the filter overflow pipe 46. In the above specific example, a small annular member having a different configuration from the fixing ring 17 is used as the spacer 20, but the spacer may be integrally formed with the fixing ring. For example, the spacer 20 is configured by forming the spacer ring 20 and the spacer 20 as one component by forming the spacer 20 in a fixed ring 17 of one of the adjacent two fixing rings. More specifically, when both the fixing ring 17 and the spacer 20 are formed of metal, these members can be integrated by welding, or these structures can be integrally formed by casting. Alternatively, the material is subjected to a cutting process to manufacture the integral fixing ring 17 and the spacer 20. Further, when the fixing ring 17 and the spacer 20 are formed of a resin, these members can be integrally molded by a molding die. Further, in each of the above-described specific examples, one movable ring 18 is disposed between the fixed ones 7 adjacent in the axial direction, but a plurality of movable rings 18 may be disposed between the fixed rings 17 in the axial direction. . At least one movable ring must be placed between adjacent fixtures. The 45 liquid parts that are sent are the same as the ring ring - 21 · 201102354 As described above, the sludge flocculation device 1 has the fixing ring 17 of the filter body 9 arranged in the up and down direction, and the center thereof The axis X extends in the up and down direction, but the filter body 19 may be disposed such that the center axis is inclined. In other words, the filtrate which flows into the filter body 19 can be configured to flow out from the lower portion of the filter body 19 to the outside by its own weight. Further, each of the above-described configurations is also applicable to the first mixing chamber and the second mixing chamber of the sludge flocculation apparatus as disclosed in Japanese Laid-Open Patent Publication No. Hei 9-22-596. In the stirring chamber, the sludge and the coagulation accelerator are sent to the first stirring chamber, and then stirred, and then the sludge is sent to the second stirring chamber, and the second stirring chamber is supplied with agglomeration. The agent is further stirred to thereby sludge the sludge flocculation device. In the case of the sludge flocculation device, for example, a filter body is provided in the second agitation chamber, and the filtrate that has flowed into the filter body is discharged to a portion other than the solid-liquid separation device in the same configuration as described above. BRIEF DESCRIPTION OF THE DRAWINGS - Fig. 1 is a partial cross-sectional view showing an example of a sludge treatment device. Figure 2 is an enlarged cross-sectional view of the sludge flocculation apparatus. Fig. 3 is a cross-sectional view showing a portion of the filter body shown in Fig. 2 in an enlarged manner. Fig. 4 is a perspective view showing one fixed ring, one movable ring, and a spacer. Figure 5 is a cross-sectional view taken along line V-V of Figure 3. Fig. 6 is a cross-sectional view similar to Fig. 5 showing a state in which the pressing member is rotated by about 90° from the position of Fig. 5. -22- 201102354 Figure 7 is an enlarged cross-sectional view taken along line VII-VII of Figure 2. Fig. 8 is a plan view showing the positional relationship of a plurality of spacers and a movable ring. Figure 9 is an enlarged cross-sectional view taken along the line IX-IX of Figure 2. Fig. 10 is a cross-sectional view showing another example of the cleaning member. Fig. 1 is an enlarged cross-sectional view showing the liquid discharge pipe and the filtrate overflow pipe shown in Fig. 1. [Explanation of main component symbols] 1 : Sludge flocculation device 2 : Solid-liquid separation device 3 : Mixing tank 9 : Motor 1 搅拌 : Stirring blade 15 : Shaft 17 : Fixing ring 1 8 : Movable ring 19 : Filter body 3 8 : Pressurizing member 40: cleaning member 45: 堰D Ο 1, D Ο 2 : outer diameter HI, H2: height X, Y: central axis -23-