201020218 九、發明說明 【發明所屬之技術領域】 本發明係關於處理港灣、湖沼、河川等的底泥之疏浚 土，並將其有效利用的疏浚土的處理方法以及裝置。 【先前技術】 從以往到現在，都期待能夠將疏浚土予以減少體積並 0 且加以處理成當作資源來有效地利用。 然而，疏浚土中係有：水、垃圾、大小的砂礫、浮遊 物等各種的異物混在其中，因此如果不事先將這些除去的 話，很難將其減量化，往後的處理也不容易，也無法當作 資材來予以有效利用。 關於可將疏浚土砂處理成可予以再利用的疏浚土砂處 理方法係有各種的先前例。其中，日本特開2008-18316 公報（以下，稱爲先前例）所揭示的疏浚土砂的處理方法 • ，可將包含在從港灣、河川、湖沼等所產生的疏浚土內的 各種的混合異物予以分類、除去，可用低成本就將疏浚土 予以大幅地減水化、減量化，而且可將疏浚土中的各種垃 圾和水以外的礫、砂等都當作資材加以取出，將這些當作 資源予以有效地再利用。 這個先前例之用來處理疏浚土的工序係包含： 將內含在：將存放在土砂儲槽的疏浚土利用攪拌兼裝 載機予以攪拌混合後的土砂內、或者被土砂泵壓送疏浚船 所疏浚且被軟管輸送管運過來的疏浚土中的較大礫石、粗 -5- 201020218 大垃圾、木片等的大型混合異物利用篩網予以除去的工序 9 將已通過前述篩網後的第1 土砂列用土砂搬運裝置予 以搬運到預定的場所，加水之後，利用碎解攪拌機予以製 作成第1泥漿的工序； 利用第1 土砂分離機從前述第1泥漿中分離出預定粒 徑的第2 土砂的工序； φ 利用第2 土砂分離機從已經通過了前述第1 土砂分離 機後的泥漿中分離出預定粒徑的第3 土砂的工序； 利用圓錐型離心分離機將已經通過了前述第2 土砂分 離機後的第2泥漿分離成較重的第3泥漿與較輕的第4泥 漿的工序； 利用第3 土砂分離機從前述第3泥漿中分離出預定粒 徑的第4 土砂的工序； 將已經通過了前述第3 土砂分離機後的第5泥漿，再 φ 度經由前述第1、第2 土砂分離機、前述圓錐型離心分離 機的工序； 將前述圓錐型離心分離機所分離出來之較輕的前述第 4泥漿通過第4 土砂分離機，以分離出預定粒徑的第5 土 砂的工序； 對於被前述第1、第2 土砂分離機所分離出來的前述 第2、第3 土砂一面加水，一面利用礫洗淨機進行洗淨而 分離成砂礫與第6泥漿的工序； 將從前述礫洗淨機以及砂洗淨機所分離出來的第6泥 -6- 201020218 漿、第7泥漿，利用垃圾暨土砂分離機予以分離成第8泥 漿與垃圾的工序； 在已經通過了前述第4 土砂分離機後的第9泥漿中添 加入凝集劑，加以混合之後，予以儲存在泥漿槽的工序； 將來自前述泥漿槽的第10泥漿供給到高壓泵浦’將 來自高壓泵浦的第11泥漿打入到高壓型壓濾機’予以分 離成脫水泥餅與過濾水。 φ [專利文獻1]日本特開2008-0 1 83 1 6號公報 根據這個先前例，係可利用篩網先將大型垃圾的夾雜 物予以除去。 而且可以利用：碎解攪拌機、第1〜第η 土砂分離機 、圓錐型離心分離機等，來將礫、砂之類的不同粒徑的土 砂予以分別取出，將這些洗淨而當作有效的資材加以利用 〇 又，來自礫洗淨機、砂洗淨機的排出物則是利用垃圾 • 暨土砂分離機來進行處理，所以可容易就將垃圾取出處理 〇 又，如前所述，既可將礫、砂取出當作資材加以活用 ，而且利用高壓型壓濾機可分離成脫水泥餅和過濾水，因 此，具有可將疏浚土大幅地減量化等等的優點。 【發明內容】 [發明之揭示] [發明所欲解決的課題] 201020218 然而，這個先前例所存在的技術課題是： 4MPa的高壓型壓濾機來進行處理時，如果是針 0.075〜2.00mm的砂分極端地少只有 10%程度， 0.075mm的淤泥、黏土成分達90%程度之細粒成 多的高含水率的疏浚土的話，即使是多添加了凝集 水後的脫水泥餅還是呈現出含水率很大的液狀，不 合當作塡土材，甚至於連運搬都有困難的狀況下， φ 花費很長時間來進行脫水處理。如此一來，因爲脫 效率低落而必須配置更多台的壓濾（脫水）機，因 致成本變高，並且長時間運轉作動的結果，導致消 増加因此也導致用電量的増加、因消耗燃料所引起 化碳排出量的増加等等，對於環境都有不良影響。 本發明係有鑒於以上的情事而開發完成的，其 於提供：一種疏浚土的處理方法以及裝置，即使是 含細粒成分（土粒子徑未達0.075mm的成分）非 φ 高含水率的疏浚土，亦可藉由確實地分級、洗淨、 化處理，而可將其變成塡土材等予以再生利用。 [用以解決課題的技術手段] 本案的申請專利範圍第1項所述的發明之疏浚 理方法的特徵爲： 包含： 對應於高含水率且砂分的含有率很少之由 淤泥、黏土成分的細粒成分所構成的疏浚土的固體 當使用 對於含 且未達 分非常 劑，脫 僅不適 不得不 水處理 而又導 耗能量 的二氧 目的在 針對於 常多之 脫水硬 土的處 多量的 成分， -8- 201020218 決定出用來提昇脫水效率的添加材的添加量的工序； 將前述添加材計量成一定量的工序； 將前述計量後的添加材予以添加混合到前述疏浚 土的工序； 從前述添加混合工序所形成的混合體中，依據粒 徑、質性來分級出：垃圾、礫、砂以及高含水率的細粒成 分也就是泥漿等的工序； @ 對於前述工序所分級出來的泥漿進行脫水而作成 脫水泥餅的工序； 而且前述添加材的質性係：具有未達lmm且 0.075mm以上的粒徑範圍的砂、或者係將前述砂與水與泥 漿、或砂與水、或砂與泥漿攪拌在一起的混合體。 本案的申請專利範圍第2項所述的發明之疏浚土的處 理裝置的特徵爲： 係具備： φ 對應於高含水率且砂分的含有率很少之由多量的 淤泥、黏土成分的細粒成分所構成的疏浚土的固體成分， 決定出用來提昇脫水效率的添加材的添加量的手段； 將前述添加材計量成一定量的手段； 將前述計量後的添加材予以添加混合到前述疏浚 土的手段； 從前述添加混合工序所形成的混合體中，依據粒 徑、質性來分級出：垃圾、礫、砂以及高含水率的細粒成 分也就是泥漿等的手段； -9- 201020218 對於前述工序所分級出來的泥漿進行脫水而作成 脫水泥餅的手段； 而構成的。 [發明的效果] 如上所述，根據本發明的方法、裝置，即使針對於細 粒成分非常多之高含水率的疏浚土，也因爲對於這種疏浚 φ 土添加混合了：當進行脫水時可發揮過濾層的功能而可提 昇脫水效率使其迅速脫水的添加材的緣故，因此，可達成 脫水硬化而將該疏浚土當作所期望的塡土材等來予以再生 利用。 【實施方式】 [本發明之最佳實施方式] 茲佐以圖面來說明本發明的實施例。 [實施例1] 第1-1圖〜第1-2圖係顯示用來實施本發明的處理方 法的裝置的第1實施例的系統圖。 這個處理裝置係具備：可供例如：抓斗式疏浚船1所 疏浚的疏浚土 2投入用的土砂儲槽3;用來將這個土砂儲 槽3內的疏浚土 2予以攪拌且裝載到預定的場所的攪拌兼 裝載機4;可供將土砂儲槽3的土砂5經由篩網9而去除 掉大垃圾93之類的混入異物後的土砂投入用的承接料斗 -10- 201020218 10;用來決定出：砂112、泥漿1〇6、水1〇5等的預定種 類的混合體的添加量之手段；用來將添加材計量成一定量 的手段；用來將計量後的添加材添加混合到疏浚土的砂供 給手段；用來將來自承接料斗10的第1 土砂丨1搬運到預 定的場所的土砂搬運裝置12;從搬運過來的土砂中除去 混在其中的鐵片18之第1磁力選別裝置13;對於疏浚土 2'混合了添加材後的疏浚土 2依粒徑、質性來進行分級 φ 的手段。又，篩網9是被投入：由抓斗式疏浚船1所疏浚 的疏浚土 2或者從土砂泵壓送疏浚船6經由軟管輸送管7 送過來的疏浚土 8之任何一方。 砂供給手段係具備：可藉由適當的控制機構（未圖示） 而能夠隨意地選擇將砂112投下的開閉角度，而可調整供 給量的料斗（未圖示）：配置在這個料斗的下方的輸送帶 之類的砂供給裝置1 02 ;具有將砂1丨2、泥漿1 〇6、水1 05 等予以攪拌的功能的攪拌槽104;而這個添加材也就是混 Ο 合體是以泥漿121的形式，經由可控制成一定的重量、流 量的泵浦而被供給到承接料斗10。此外，質性相同的泥 漿120、122也可以供給到土砂儲槽3或碎解攪拌機2〇， 混合體則只要供給到承接料斗1〇、土砂儲槽3或碎解攪 拌機20的其中一即可。混合體的送泥量係針對於：經由 計量手段而從承接料斗10排出的疏浚土中的粒徑lmm以 下的固體成分’先調整成一定量之後才被送出。此處所稱 的：「針對於疏浚土中的固體成分（疏浚土之中，除掉水 分與垃圾等之後剩下來的東西）的一定量」係指：將後述 -11 - 201020218 的脫水泥餅60的水分除去以後的重量（乾燥重量）之中 ，土粒子徑未達1mm〜0.〇75mrn以上的土粒子重量爲15 %程度以下時的量。 此外’如果土粒子徑未達1mm〜0.075 mm以上的土粒 子重量爲1 5 %以上的話，會產生下列的問題。 A_所添加的砂量變多，處理量也會増多。 B .處理時間會變長。 ❹ C.設備會變大。 D. 處理所需的能源會増大。 E. 處理土的運搬量也會變大。 F. 因此，變得沒有效果。 基於以上所列的理由，乃制定爲1 5 %程度以下。 此外’在上述的過程中，用來決定出添加材的添加量 的手段如下。 (1)依據從土質試驗所獲得的疏浚土與添加材與砂 ❹ 的粒度分布等因素，利用電腦等的運算裝置，來決定出要 添加的添加材也就是砂的量，並在料斗驅動工序中，經由 料斗將計算出來之預定量的砂投入。 (2 )亦可考量到利用試驗施工所獲得的脫水時間、 脫水泥餅的粒度分布的結果，來決定出最適合的砂添加量 〇 (3)要添加入混合體的情況下，從所使用的砂、泥 漿的質性，利用電腦等的運算來決定出配方比例，以添加 從上述的步驟所求出的最適當的砂量的方式來決定出混合 -12- 201020218 體的添加量。 又’用來將添加材的添加量計量成一定量的手段， 係如下所列。 「要添加砂的情況」 藉由調整輸送帶的速度。或者調整料斗排出的開口程 度（有兩種情況，一種情況是從料斗直接添加；另一種情 況是先落下到輸送帶之後才添加）。 「要添加混合體的情況」 先測定混合體的濃度，掌握含砂率的變化。或者亦可 在混合體的輸送配管上安裝流量計（未圖示）來進行計量 0 只要將這兩種情況之中被認爲最佳的一種情況’組合 到砂供給工序乃至於泥漿120〜122的搬運工序中即可。 此外，所使用的砂112’係以具有：未達1mm〜 0.075mm以上的粒徑範圍者爲50%程度以上的爲宜。 這種粒徑的砂’在進行脫水時可以發揮作爲過濾層的 功能，而且也是適合流體輸送的粒徑。此外’在本發明中 ，所添加的砂，除了含有害物質的情況、超過環保基準的 情況不被允許之外，含有石粉、金屬類、其他物質亦無妨 〇 又，流到攪拌槽104的水105是從清水槽19經由栗 浦所供給的，清水槽19的水亦可當㈣13()而被供給投 -13- 201020218 入到承接料斗10。又，承接料斗10中係被投入從土砂泵 壓送疏浚船6經由軟管輸送管7送來的疏浚土 8。此外， 有時候，如果泥漿106的流動性夠高的話，或者疏浚土 8 的水分很多的情況下，也可以不加水。 又’流到攪拌槽104的泥漿106係由後述的第3泥水 承接槽47所供給的。這個是爲了防止砂112的沉澱而供 給的。 0 在土砂搬運裝置12係設置了磁力選別裝置13，可偵 測出含在第1 土砂11中的鐵片之類的磁性體，搬運到磁 力選別裝置13。磁力選別裝置13係具有輸送帶14。在這 個輸送帶14內設置了磁鐵15，輸送帶14可將含在被該 輸送帶所搬運的土砂中的鐵片16吸住，被吸住的鐵片16 被搬運到預定位置時，就經由滑槽17搬運到預定的場所 收集起來。元件符號18係代表被收集和累積的鐵片18。 作爲前述土砂搬運裝置12的次工序，係設置了碎解 # 攪拌機20。這個碎解攪拌機20係被投入來自於土砂搬運 裝置12的第1 土砂1 1，該第1 土砂1 1是已經被除去鐵 片16的土砂。又，清水槽19內的水是由泵浦所供給的。 又，碎解攪拌機20中被投入在砂供給手段所生成的一定 量之經過攪拌後的泥漿122。此外，與泥漿122相同的質 性的泥漿120或121被投入到篩網9的情況下，就不必將 泥漿122投入到碎解攪拌機20。這個泥漿122是砂、水 以及泥漿1 06所組成的混合體，之所以採用這樣的混合體 的理由是因爲混合體是液狀的，所以可有效率地管理「定 -14- 201020218 量添加」的作業之考量。可以想像到如果將這種由混合體 所組成的泥漿120投入到土砂儲槽3的話，攪拌兼裝載機 4的作業量將會増加，效率會變差。因此，最好是將泥漿 122投入到碎解攪拌機20。此外，第1泥水承接槽40的 水是經由泵浦循環地被供給的，可以謀求省水化。 作爲碎解攪拌機20的次工序，係設置了：供投入第 1泥漿21的第1 土砂分離機22、第2 土砂分離機23、供 φ 來自第2 土砂分離機23的第2泥漿26投入用的第2泥水 承接槽27。 第2泥水承接槽27內的水係經由泵浦供給到圓錐型 離心分離機28。圓錐型離心分離機28係用來將泥漿分離 成較重泥漿與較輕泥漿，而來自圓錐型離心分離機28的 第3泥漿29係被供給到第3 土砂分離機31，取出後的第 5泥漿32係被投入到第1 土砂分離機22。 此外，第1、第2、第3 土砂分離機22、23、31係被 φ 供給來自於清水槽1 9的水，分別係水1 3 2、水1 3 3、水 131 ° 又，設置有：被投入來自於前述圓錐型離心分離機 28的第4泥漿30的第4 土砂分離機44、被投入來自於這 個第4 土砂分離機44的第9泥漿46的第3泥水承接槽 47。 此外，設置有：被投入來自於第1、第2 土砂分離機 22、23的第2、第3 土砂24、25的礫洗淨機34。 此外，設有一個被投入從第3 土砂分離機31取出的 -15- 201020218 第4 土砂33的砂洗淨機41;設有一個被投入來自於礫洗 淨機34的第6泥漿36和來自於砂洗淨機41的第7泥漿 43的垃圾暨土砂分離機37;從這個垃圾暨土砂分離機37 所排出的第8泥漿38係被投入前述第1泥水承接槽40。 此外，也具備有：被供給凝集劑也就是PAC50之具 有攪拌機的泥漿槽49、以及被供給消石灰51及來自於第 3泥水承接槽47的泥水之具有攪拌機的貯泥槽48。 @ 來自於泥漿槽49的第10泥漿52係經由：供泥栗浦 53、因應必要而設置的第2磁力選別裝置54而被供給到 高壓泵浦55，而來自高壓泵浦55的第11泥漿56則被投 入到高壓型壓濾機57。 來自高壓型壓濾機57的過濾水64被適宜地處理，在 其過程中所產生的第12泥漿71係被供給到前述貯泥槽 48 ° 其他，在第1-2圖中，元件符號60係代表：從高壓 型壓濾機57所排出的脫水泥餅、59係用來搬運脫水泥餅 60的輸送帶。 其次，更進一步詳細說明本發明的處理方法。 首先’以抓斗式疏浚船1來將湖泊、河川、港灣等處 的底泥進行疏浚，從運泥船等將疏浚土 2存放到土砂儲槽 3。這種疏浚土 2係細粒成分（土粒子徑〇.〇75mm以下的 成分）非常多之高含水率的疏浚土。 先將存放在土砂儲槽3內的疏浚土 2以攪拌兼裝載機 4予以均勻地攪拌，而變成土砂5。藉由這種處理，具有 -16- 201020218 :可以讓下一個步驟之利用篩網9的分離作業更爲順暢的 效果。此外，對應於被投入到這個土砂儲槽3的疏浚土 2 的固體成分’投入一定量之由砂供給手段所作成且攪拌後 的混合體也就是泥漿120。此外，如前所述，如果是將與 泥漿120相同質性的混合體也就是泥漿121或122投入到 篩網9或碎解攪拌機20的情況下，就不必再將泥漿12〇 投入到土砂儲槽3。混合體係對應於由承接料斗10所排 φ 出的疏浚土的固體成分，被調整成一定量之後才被供給輸 送的。以這種方式將一定比例的砂112添加到第1、第2 疏浚土 2或8中，如此一來，疏浚土 2或8與砂112變成 泥漿56之前爲止的處理工序都是均質的狀態，所以被混 入一定砂量後的疏浚土在於進行後述的脫水工序（高壓型 壓濾機57)時的脫水時間可以縮短，藉由降低脫水泥餅 60的含水率，可將其當成良質的塡土材予以再生利用。 土砂5是被攪拌兼裝載機4投入到篩網9。此時，可 φ 從攪拌兼裝載機4的駕駛座經由目視方式來確認是否有較 大的夾雜物。 篩網9的網目係100mm程度，可以去除掉石塊與夾 雜物。土砂5中的夾雜物，有時候會包含有：機車、自行 車之類的大型垃圾，這些夾雜物是以人力將表面的細粒成 分的泥水洗之後，予以除去。這個篩網9的功能，是藉由 讓疏浚土通過篩網的篩選而可使得疏浚土內的細粒成分的 塊體變得更小，而得以作出均質的第1 土砂1 1。 通過篩網9之從承接料斗1〇出來的第1 土砂Η係利 -17- 201020218 用土砂搬運裝置12搬運到碎解攪拌機20，而被投入其中 。如果已經除去了較大的夾雜物之通過了篩網9之更均質 化的第1 土砂11中含有金屬片的話，只要設置一個磁力 選別裝置13在第1 土砂11於土砂搬運裝置12上移動的 期間將金屬片除去即可。 這個磁力選別裝置13的具體例子，是可以採用：在 於與土砂搬運裝置12的上空正交的輸送帶14的內部設置 0 磁鐵15，將含在第1 土砂11中的金屬片當作鐵片16予 以除去，再經由滑槽17將該鐵片當作鐵片18累積起來的 結構。 對於碎解攪拌機20除了投入第1 土砂11之外，基於 在振動篩上可更容易分離的考量，也同時從清水槽19加 入所需量的水90。例如：疏浚土的含水率若爲200%程度 的話，就添加約其2倍程度的水（泥水濃度約2 0 %程度 )。所供給的水，也可從第1泥水承接槽40的第8泥漿 φ 3 8來給水。清水槽1 9的水亦可作爲水91來供給到砂洗 淨機41。 碎解攪拌機20係具有：在旋轉的筒體的內側設置葉 片，且將設有相同的葉片的轉軸設置於筒體內側之與筒體 軸偏開的位置處來進行旋轉的機構，可將投入內部的第1 土砂11之中的呈塊狀的細粒成分（74#m以下的土粒子 )粉碎分開，具有可同時執行將所加入的水與土砂予以攪 拌和移動，而作出均質的泥漿的功能之裝置。這個碎解攪 拌機20係可依據欲粉碎的細粒成分的塊體的大小、量等 -18- 201020218 因素，適當地調整改變外側與內側的葉片的角度、間隔、 長度等。 至於碎解攪拌機20的種類，有時候亦可依據土砂的 種類等的不同，而採用：將複數根安裝了多數葉片的雙軸 攪拌葉片予以互相重疊設置，使之朝互相相反的方向旋轉 ，而可對於疏浚土與所加入的水進行攪拌與混合工作的划 槳式攪拌裝置。 @ 此外，關於碎解攪拌機20的其他例子，亦可採用： 在旋轉的筒體的內側預先置入球狀的物體（例如：鐵彈） ，而該筒體的構造則是：當進行旋轉時，位於其內部的球 狀物體不會掉到外部的構造，利用球狀物體將被投入到內 部的第1 土砂11內之呈塊狀的細粒成分予以粉碎成細粒 ，而且具有可：同時執行對於所加入的水與土砂的攪拌和 移動，作出均質的泥漿的功能之裝置。 此外，碎解攪拌機20的其他例子，係有：傾斜圓筒 φ 型旋轉篩以及圓筒型旋轉篩之類的可在旋轉圓筒體內一面 進行加水一面進行攪拌混合來作成均質的泥漿的裝置。此 外，這些裝置也兼具有分級功能，因此如果採用這種裝置 的話，有時候可兼作爲第1 土砂分離機22或第2 土砂分 離機23。 此外，碎解攪拌機20的其他例子，也有：在於後述 的其他實施例之利用土砂泵壓送疏浚船6來進行疏浚的情 況下，將由軟管輸送管7所搬運的疏浚土 8以被壓送過來 的土砂的狀態直接朝牆壁噴射，而將細粒成分的塊體予以 •19- 201020218 撞碎以作成均質的泥漿的方法。這個牆壁的設置方法爲： 例如將較之軟管輸送管7更大好幾倍的直徑的茶罐狀的鋼 管，相對於軟管輸送管7呈直角形狀來配置。 將碎解攪拌機20所處理過的第1泥漿21注入到第1 土砂分離機22的例如25mm的篩網上，以分級出粒徑 2 5mm以上的第2 土砂24，25mm以下的粒徑的土砂則是 再利用後續的第2 土砂分離機23的例如3mm的篩網，分 0 級出粒徑3mm以上的第3 土砂25。通過了第2 土砂分離 機23之後的3mm以下的粒徑的第2泥漿26係被存放到 第2泥水承接槽27。 這兩個第1 土砂分離機22和第2 土砂分離機23的兩 個篩網，有時候可設置成一個篩網或三個以上的篩網，可 依據規模、泥漿的質性等，配合需要來適當地設置。 在這個實施例中，是準備了兩台土砂分離機，如上所 述’被第2 土砂分離機23處理後的第2泥漿26是投入到 φ 第2泥水承接槽27。 這個第2泥漿26係從第2泥水承接槽27以泵浦進行 壓送進入圓錐型離心分離機2 8，利用其離心分離功能， 而分離成比重較小也就是較輕的第4泥漿30和比重較大 也就是較重的第3泥漿2 9。第3泥漿2 9則經過第3 土砂 分離機（振動篩）31的例如〇.7mm的篩網而被分級出粒 徑0.7mm以上的土砂33。粒徑0.7mm以下的土砂就變成 了第5泥漿32。第5泥漿32係對於從碎解攪拌機20搬 出的第1泥漿21’從上部進行合流，利用其淋浴效果可 -20- 201020218 以加強分級功能。之後，則又變成前述 22的處理。 分別從第1、第2 土砂分離機22 砂24與第3 土砂25又在礫洗淨機34 礫洗淨機3 4係被清水槽1 9供給水92。 3 土砂2 5被當作不同大小的礫3 5來有 有時候亦可配合其使用目的而利用各自 _ 洗淨處理。 在這個洗淨工序，係將其分離成： 分」與「附著在礫表面等，而混在其中 子以及垃圾」。將「礫」與「細粒成分 理，是在水中以物理方式進行強制攪拌 「礫」會立即沉澱而堆積在底部，原本 成分被清洗下來，與較輕的垃圾都不會 在水中，在受到攪拌的期間係以液體狀 φ 的不同狀態，可將其分離成兩種類。 礫洗淨機34的其中一例，被稱爲 有可旋轉之Φ 1000程度的螺旋狀葉片 的直徑稍微大一點的U字型凹槽部，將 設置成傾斜預定的角度。因爲是具備了 置角度、旋轉速度的機構的機械，有時 滯留時間。 礫洗淨機34係利用旋轉的螺旋葉 土砂24與第3 土砂25 —面在水中進行 的第1 土砂分離機 23取出的第2 土 被加水洗淨。這個 第2 土砂24與第 效活用的情況下， 的礫洗淨機來進行 「可有效活用的礫 的細粒成分的土粒 和垃圾」分離的原 的話，較大粒子的 附著在表面的細粒 沉澱下來而是浮游 態存在。利用兩者 螺旋葉洗淨機，具 與較之螺旋狀葉片 這個螺旋葉洗淨機 :可自由地控制設 候亦可控制土砂的 或葉片等，將第2 攪拌，一面進行前 -21 - 201020218 述的土粒子的分離工作。只有3mm以上 旋葉等往上旋轉輸送到水面上方，並將其 35。剩餘的成分係被當作第6泥漿36， 的處理工序。 礫洗淨機3 4的種類，有時候利用旋 ，一面加水到第2 土砂24與第3 土砂25 話，亦可達成前述的分離功能。 0 第6泥漿3 6係投入到垃圾暨土砂分 0.7mm的篩網上，留在篩網上的是當作垃 來，而且是被當成產業廢棄物來處理。通 泥漿38則被存放在第1泥水承接槽40。 第1泥水承接槽40的水係被當成： 機20的水來循環利用。如此一來，可有 此，具有：即使供水不足的條件下，亦可 之優點。此外，可謀求大幅的減水化。再 φ 個水中的細粒土經過碎解攪拌機20之後 脫水泥餅60予以資源再利用。 另一方面，從圓錐型離心分離機28彳 30在第4 土砂分離機44被分離成：停崔 上的第5 土砂45以及通過1mm的篩網後 9泥漿4 6。 第5 土砂45係與第4 土砂33 —起j ，受到與礫洗淨機34相同功能的處理 lmm以上的土粒子所構成的可有效活用&1 的土粒子會被螺 自由落下成爲礫 以流體移送到別 轉圓筒狀的篩網 一面進行旋轉的 離機3 7之例如 圾39被堆積起 過篩網後的第8 添加到碎解攪拌 效地利用水，因 減少購入的水量 者，可將含在這 ，最後可以作成 非出的第4泥漿 『在1mm的篩網 的細粒成分的第 匿入砂洗淨機41 ，而被分離出由 J砂42。剩餘的 -22- 201020218 成分則被當成第7泥漿43進行與第6泥漿36相同的處理 〇 有時候，依據砂42的使用目的、土質條件等因素’ 並不需經過砂洗淨機41的砂洗淨工序’直接就可將第5 土砂45與第4 土砂33當作砂42來有效活用。 在被礫洗淨機34所處理後的礫35以及被砂洗淨機 41所處理後的砂42之中，幾乎不再混入著土粒子的細粒 I 成分、比重較輕的垃圾等’所以可成爲高利用價値的資材 擊 〇 礫3 5、砂4 2係可當作例如：路基材、背面塡充材、 人工海灘、混凝土的骨材等，來予以有效地利用。 來自於第4 土砂分離機44的第9泥漿46係進入第3 泥水承接槽47，再以泵浦壓送到貯泥槽48。又，第9泥 漿46又從貯泥槽48再以泵浦壓送到泥漿槽49。此時， 係因應該被壓送的第9泥漿46中所包含的乾燥重量來添 φ 加必要量的凝集劑，並且利用泥漿槽49內的攪拌裝置將 其均勻地混合成第10泥漿52。（關於凝集劑，雖然是依 土質而不同，但是，例如係可添加PAC50與消石灰51各 3 %程度）所謂的攪拌裝置，係指：例如在旋轉軸的外周 設置了螺旋葉之類的葉片，藉由該葉片的旋轉來攪拌液體 的裝置。 第10泥漿52係從泥漿槽49利用高壓泵浦55 (壓力 4MPa)，當成第11泥漿56打入到高壓型壓濾機57。有 時候，針對於第10泥漿52，在將其通過高壓泵浦55之 -23- 201020218 前，先讓它通過因應需要而設置的第2磁力選別裝置54 ，以資執行將其中所含的可能會造成高壓泵浦55的功能 障礙的微小鐵片74予以除去的工序。 高壓栗浦55之一例，係可舉出：透過特殊橡膠將油 壓傳遞到泥漿而進行壓送的裝置。 高壓栗浦55的其他例子，可舉出：以「兵神無脈動 定量泵浦（兵神裝備株式會社製）」爲代表的，由在內側 g 之可旋轉的被稱爲轉子的特殊加工的一根公螺桿、與在外 側之被稱爲定子的以彈性材成型的母螺桿等所構成，可藉 由轉子的旋轉速度來調整送泥速度，對於壓送的泥漿不會 產生脈動地來進行壓送的裝置。 次外，高壓泵浦55的其他例子，係有：利用油壓活 塞的往復運動來進行壓送泥漿的污泥泵浦之類的裝置。 利用高壓型壓濾機57(4MPa)對於第11泥漿56進 行脫水，以作成脫水泥餅60 (脫水時間約40〜60分）。 φ 這種情況下，第1 1泥漿5 6中係被添加了砂1 12，因 此’進行脫水時，砂112可以發揮過濾層的功能而可提高 脫水效率。 從高壓型壓濾機57排出的過濾水64是被存放在過濾 水槽65。這個存放物雖然是被當作泥漿71投入到貯泥槽 48’但是其中有一部分則是經由放水槽被放水處理掉。 泥漿71又送回到貯泥槽48進行再處理。 高壓型壓濾機57的濾布清洗水、其他的機器的清洗 水全部都集中到第1泥水承接槽40進行再處理》 -24- 201020218 在高壓型壓濾機57進行第11泥漿56的脫水處理時 的剩餘成分是當作剩餘泥漿被送回到泥漿槽49進行再處 理。 脫水泥餅60亦可因應目的，利用粉碎機等加以粉碎 成粉碎土。 脫水泥餅60、粉碎土的含水率爲40〜50%程度，可 當作：路體塡充土、坡面吹噴附著土、植生土等，有效地 φ 利用。 如上所述，本實施例係具備下列的工序： 從：原本存放在土砂儲槽3內的疏浚土 2再經過攪拌 兼裝載機4攪拌混合後的疏浚土、或者被土砂栗壓送疏浚 船6所疏浚且經由軟管輸送管7運送過來的疏浚土 8中， 利用篩網9除去大石塊、粗大垃圾、木片之類的大型混入 異物的工序； 將砂供給裝置102所運來的砂112、水105以及泥漿 φ 106在攪拌槽104進行混合攪拌，將攪拌後的混合體投入 到前述土砂儲槽3的疏浚土、來自於前述土砂泵壓送疏浚 船6的疏浚土 8或碎解攪拌機20的工序； 將已經通過了前述篩網9的第1 土砂11以土砂搬運 裝置12搬運到前述碎解攪拌機20，並且將水90加進去 ，利用前述碎解攪拌機20作成第1泥漿21的工序； 從前述第1泥漿21中，利用第1 土砂分離機22分離 出預定粒徑的第2 土砂24的工序； 從已經通過了前述第1 土砂分離機22的泥漿利用第 -25- 201020218 2 土砂分離機23分離出預定粒徑的第3 土砂25的工序； 將已經通過了前述第2 土砂分離機23的第2泥漿26 利用圓錐型離心分離機28分離成較重的第3泥漿29與較 軽的第4泥漿30的工序； 從前述第3泥漿29中，利用第3 土砂分離機31分離 出預定粒徑的第4 土砂33的工序； 將已經通過了前述第3 土砂分離機31後的第5泥漿 #32再度通過前述第1、第2 土砂分離機22、23、前述圓 錐型離心分離機28的工序； 將被前述圓錐型離心分離機28所分離出來的較輕的 前述第4泥漿30，通過第4 土砂分離機44以分離出預定 粒徑的第5 土砂45的工序； 對於被前述第1、第2 土砂分離機22、23所分離出 來的前述第2、第3 土砂24、25，一面加水一面利用礫洗 淨機34進行清洗，而使其分離成礫35與第6泥漿36的 ❹ 工序； 將被前述礫洗淨機34以及砂洗淨機41所分離出來的 第6泥漿36、第7泥漿43，利用垃圾暨土砂分離機37分 離成第8泥漿38與垃圾39的工序； 將凝集劑添加混合到已經通過了前述第4 土砂分離機 44後的第9泥漿46，並存放到泥漿槽49的工序； 並且將來自於前述泥漿槽49的第10泥漿52供給到 高壓泵浦55，將來自高壓泵浦55的第11泥漿56打進高 壓型壓濾機57，分離成脫水泥餅60與過濾水64。 -26- 201020218 第1-3圖係將上述過程簡化表示成容易理解的流程圖 〇 如上所述，這個第1實施例，在於：將抓斗式疏浚船 1所疏浚的土砂投入土砂儲槽3經過攪拌處理後的第1疏 浚土或者來自於土砂泵壓送疏浚船6的第2疏浚土，投入 具有篩網9的承接料斗1〇,再將所排出的土砂11經由碎 解攪拌機20，再分別投入複數個土砂分離機中，取出礫 0 、砂，並且對於泥狀成分添加入凝集劑進行攪拌處理，再 經過脫水工序以作成脫水泥餅的處理過程中，前述第1、 第2疏浚土是含砂分很少，淤泥和黏土成分的細粒成分很 多且高含水率的情況下，就將由砂、水以及泥漿攪拌而成 的混合體投入到前述土砂儲槽3、前述篩網9或者前述碎 解攪拌機20的其中之一來進行處理。 此外，混合體係如上所述，雖然是以砂、水以及泥漿 的混合物爲標準實施方式，但是，如果泥漿流動性很高的 0 話，就不必再加水，因此，可以停止從清水槽19供給前 述的水1 05，只要提供由砂與泥漿所組成的混合體就可以 了。又，如果所添加的砂之中，含有較多的細粒成分的話 ，就不必再添加泥漿，只要使用由砂和水組成的混合體即 可 ° [實施例2 ] 第2-1圖、第2-2圖是本發明的第2實施例的系統圖 ;第2-3圖係將其處理工序予以簡化表示的流程圖。 -27- 201020218 在前述第1實施例中，雖然是顯示出將：由可將來自 於砂供給裝置102的砂1 12、泥漿106以及水105等加以 攪拌的攪拌槽104等所組成的砂供給手段所作成的混合體 ，投入到土砂儲槽3、篩網9或碎解攪拌機20的情況， 但是，本實施例2的特徵在於：是將砂供給手段予以簡化 ，在土砂儲槽3的前段，設置了用來將砂110投入的砂供 給裝置100。砂110係因應於疏浚土的固體成分，先調整 成一定量之後才被送出的。 然後，將砂11 〇直接投入到土砂儲槽3，利用攪拌兼 裝載機4與疏浚土一起攪拌之後才投入到承接料斗10, 因此，可使得這個部分的設備變得簡化，而能夠減低設備 費。 至於其他的結構、作用則都與前述實施例相同。 [實施例3] 第3-1圖、第3-2圖係本發明的第3實施例的系統圖 :第3-3圖係以流程圖來表示其處理工序的槪略。在前述 第2實施例中，雖然是在土砂儲槽3的前段設置了砂供給 裝置100，相對地，本實施例3的特徵則是在於：於承接 料斗10的稍微前段處，設置了用來將砂111投入的砂供 給裝置1 0 1。砂1 1 1的供給量係與第2實施例相同。 即使採用這種結構，還是可以對應細粒成分（土粒子 徑未達〇.〇75mm的成分）非常且高含水率的疏浚土。 -28- 201020218 [實施例4] 第4-1圖、第4-2圖係本發明的第4實施例的系統圖 :第4-3圖係表示其處理工序的流程。這個實施例4的特 徵在於：是在貯泥槽48的前段設置了將砂113與凝集劑 一起投入到貯泥槽48的砂供給裝置103，作成混合著凝 集劑與砂113的泥漿52，將該泥漿52供給到高壓型壓濾 機57。至於砂113的供給場所，亦可將砂113投入到泥 _ 漿槽49來取代將砂1 13投入到貯泥槽48。 即使採用這種方式，亦可對於細粒成分很多的高含水 率的疏浚土進行改質。 以上所述的第2〜第4實施例，係將抓斗式疏浚船1 所疏浚的土砂投入土砂儲槽3經過攪拌處理後的第1疏浚 土或者從土砂泵壓送疏浚船6送來的第2疏浚土，投入到 具有用以除去垃圾的篩網9的承接料斗1〇，再將所排出 的土砂1 1經由碎解攪拌機20，再分別投入到複數個土砂 φ 分離機，而取出、礫、砂，而且對於泥狀成分加入凝集劑 進行攪拌處理之後，經由脫水工序以作成脫水泥餅的過程 中，如果前述第1、第2疏浚土是砂分很少，淤泥和黏土 成分的細粒成分很多，且高含水率的話，在前述土砂儲槽 3、前述篩網9、或前述凝集劑添加工序的其中之一，投 入砂110、111、113以進行處理。 【圖式簡單說明】 第1-1圖係本發明的第1實施例的裝置的系統圖。 "29 - 201020218 第1-2圖係本發明的第1實施例的裝置的後續的系統 圖。 第1-3圖係將本發明的第1實施例的處理工序簡化表 示的流程圖。 第2-1圖係本發明的第2實施例的裝置的系統圖。 第2-2圖係本發明的第2實施例的裝置的後續的系統 圖。 _ 第2-3圖係將本發明的第2實施例的處理工序簡化表 示的流程圖。 第3-1圖係本發明的第3實施例的裝置的系統圖。 第3-2圖係本發明的第3實施例的裝置的後續的系統 圖。 第3-3圖係將本發明的第3實施例的處理工序簡化表 示的流程圖。 第4-1圖係本發明的第4實施例的裝置的系統圖。 • 第4-2圖係本發明的第4實施例的裝置的後續的系統 圖。 第4-3圖係將本發明的第4實施例的處理工序簡化表 示的流程圖。 【主要元件符號說明】 1 :抓斗式疏浚船 2 :疏後土 3 : 土砂儲槽 -30- 201020218 4 :攪拌兼裝載機 5 : 土砂 6 : 土砂泵壓送疏浚船 7 :軟管輸送管 8 :疏浚土 9 :篩網 1 〇 :承接料斗 © 11: 土砂 1 2 : 土砂搬運裝置 1 3 :磁力選別裝置 14 :輸送帶 15 :磁鐵 16 :鐵片 1 7 :滑槽 18 :鐵片 φ 1 9 :清水槽 20 :碎解攪拌機 2 1 :泥漿 22 : 土砂分離機 23 : 土砂分離機 24 : 土砂 25 : 土砂 26 :泥槳 27 :泥水承接槽 -31 - 201020218 2 8 :圓錐型離心分離機 29 :泥漿 3 0 :泥漿 3 1 : 土砂分離機 32 :泥漿 3 3 : 土砂 34 :礫洗淨機[Technical Field] The present invention relates to a method and apparatus for treating dredged soil for treating dredged soil of sediments of harbors, lakes, rivers, and the like, and utilizing them effectively. [Prior Art] From the past to the present, it is expected that the dredged soil can be reduced in volume and treated as a resource to be effectively utilized. However, in the dredged soil, various foreign materials such as water, garbage, gravel, and floats are mixed in, so if it is not removed in advance, it is difficult to reduce it, and it is not easy to handle it later. Can not be used as a material to make effective use. There are various prior examples regarding the treatment of dredged soil sand into a reclaimable soil sand treatment method that can be reused. Among them, the method for treating dredged soil sand disclosed in Japanese Laid-Open Patent Publication No. 2008-18316 (hereinafter referred to as the prior example) can be used to treat various mixed foreign matter contained in dredged soil generated from harbors, rivers, lakes, and the like. Classification and removal, the dredged soil can be greatly reduced and reduced at a low cost, and all kinds of garbage in the dredged soil and gravel and sand other than water can be taken as materials and taken as resources. Reuse effectively. The process for treating dredged soil in the previous example includes: including: the dredged soil stored in the earth-soil storage tank is stirred or mixed by the stirring and loader, or is sent to the dredging ship by the soil sand pump Large-scale gravel in the dredged soil dredged by the hose transfer pipe, large-scale mixed foreign matter such as coarse -5 - 201020218 large garbage, wood chips, etc., which is removed by the screen, the first step after passing through the aforementioned screen The soil sand column is transported to a predetermined place by the soil sand transport device, and after the water is added, the first slurry is produced by the disintegrating mixer; the second earth sand of the predetermined particle diameter is separated from the first mud by the first soil sand separator. Step of φ separating the third soil sand having a predetermined particle diameter from the slurry which has passed through the first soil sand separator by the second soil sand separator; the second earth sand having passed through the cone type centrifugal separator a step of separating the second slurry after the separator into a heavier third slurry and a lighter fourth slurry; separating the pre-precipitated from the third slurry by using a third soil sand separator a step of the fourth soil sand of the particle size; a step of passing the fifth slurry which has passed through the third earth-sand separator, and then passing the first and second soil sand separators and the cone-shaped centrifugal separator; The lighter fourth slurry separated by the conical centrifugal separator passes through the fourth soil sand separator to separate the fifth soil sand of a predetermined particle size; and is separated by the first and second earth sand separators. The second and third soil sands are washed with a gravel washing machine and separated into gravel and sixth mud; the sixth mud separated from the gravel washing machine and the sand washing machine -6- 201020218 The slurry and the seventh slurry are separated into the 8th slurry and garbage by the garbage and soil sand separator; the agglutinating agent is added to the 9th slurry which has passed the aforementioned 4th sand separator, and mixed. Thereafter, the process of storing in the mud tank is carried out; the 10th slurry from the mud tank is supplied to the high pressure pump 'the 11th slurry from the high pressure pump is driven into the high pressure type filter press' to be separated into Cement cake with filtered water. φ [Patent Document 1] JP-A-2008-0 1 83 1 6 According to this prior example, the inclusions of the large garbage can be removed first by the screen. Further, it is possible to use a disintegrator, a first to n-th soil sand separator, a conical centrifugal separator, and the like to take out soil sands of different particle sizes such as gravel and sand, and to wash them as effective. The materials are used, and the effluent from the gravel washing machine and the sand washing machine is treated by the garbage/sand sand separator, so that the garbage can be easily taken out and processed, as described above. The gravel and the sand are taken out as materials to be used, and the high-pressure type filter press can be separated into the dewatered cake and the filtered water, and therefore, there is an advantage that the dredged soil can be greatly reduced and the like. [Disclosure of the Invention] [Disclosure of the Invention] [Problems to be Solved by the Invention] 201020218 However, the technical problem existing in this prior example is: When a high pressure type filter press of 4 MPa is used for processing, if it is a needle 0. 075~2. 00mm sand is extremely less than 10%, 0. If the 075mm sludge and clay components have a fine soil with a high moisture content of 90%, even if the dewatered cake with more added water will show a liquid with a large water content, it is not suitable. In the case of rammed earth materials and even difficulties in transportation, φ takes a long time to perform dehydration treatment. In this way, because the de-efficiency is low, more pressure filter (dehydration) machines must be disposed, resulting in higher costs and long-term operation, resulting in the increase in power consumption and consumption. The increase in carbon emissions caused by fuel, etc., has an adverse effect on the environment. The present invention has been developed in view of the above circumstances, and provides: a method and a device for treating dredged soil, even if it contains a fine particle component (the soil particle diameter is less than 0. 075mm component) Non-φ high water content dredged soil can be regenerated by using a grading, washing and chemical treatment. [Technical means for solving the problem] The dredging method of the invention according to claim 1 of the present application is characterized by: comprising: a sludge and a clay component corresponding to a high water content and a small content of sand The solids of the dredged soil composed of the fine-grained components are used for the inclusion and not reaching a very high dose, and the dioxane which has to be treated with water and consumes energy is only used for the amount of dehydrated hard soil. a component, -8-201020218, a process of determining an addition amount of an additive for improving dehydration efficiency; a step of measuring the additive material in a predetermined amount; and a step of adding and mixing the metered additive material to the dredged soil; The mixture formed by the above-described addition and mixing step is classified according to the particle size and the quality: the steps of garbage, gravel, sand, and a fine particle component having a high water content, that is, a slurry; @ The process of dewatering the slurry to form a de-cement cake; and the quality of the aforementioned additive material: having a thickness of less than 1 mm and 0. A sand having a particle size range of 075 mm or more, or a mixture of the above sand and water and mud, or sand and water, or sand and mud. The apparatus for treating dredged soil according to the invention of claim 2 is characterized in that: φ corresponds to a high water content and a fine content of sand having a small content of sand and clay components a solid component of the dredged soil composed of the components, a means for determining an addition amount of the additive for improving the dehydration efficiency; a method of measuring the additive material to a predetermined amount; and adding the metered additive to the dredged soil The means formed by the above-mentioned addition and mixing process is classified according to the particle size and the quality: garbage, gravel, sand, and a fine particle component having a high water content, that is, a slurry or the like; -9- 201020218 The slurry classified in the above process is dehydrated to form a dewatering cake; [Effect of the Invention] As described above, according to the method and apparatus of the present invention, even for a dredged soil having a high water content with a very high fine particle content, it is added to the dredged φ soil: when dehydrating is performed Since the function of the filter layer is exerted to increase the dehydration efficiency and the dehydrated material is rapidly dehydrated, dehydration hardening can be achieved, and the dredged soil can be recycled as a desired alumina or the like. [Embodiment] [Best Mode for Carrying Out the Invention] An embodiment of the present invention will be described with reference to the drawings. [Embodiment 1] Figs. 1-1 to 1-2 are system diagrams showing a first embodiment of an apparatus for carrying out the processing method of the present invention. The treatment device is provided with: an earth-sand storage tank 3 for the dredging soil 2 to be dredged by the grab-type dredging vessel 1; for stirring and loading the dredged soil 2 in the earth-sand storage tank 3 to a predetermined Stirring and loader 4 for the site; the soil hopper 5 for removing the soil sand 5 of the earth-sand tank 3 through the screen 9 to remove the foreign matter mixed with the foreign matter 93, and the receiving hopper -10- 201020218 10; a means for adding a predetermined type of mixture such as sand 112, mud 1〇6, water 1〇5, etc.; means for metering the additive into a certain amount; for adding the metered additive to the dredging The sand supply means for the soil; the soil sand transporting means 12 for transporting the first soil sand shovel 1 from the receiving hopper 10 to a predetermined place; and the first magnetic force sorting means 13 for removing the iron piece 18 mixed therein from the soil sand to be transported For the dredged soil 2', the dredged soil 2 mixed with the additive material is classified by φ and particle size. Further, the screen 9 is placed in any one of the dredged soil 2 dredged by the grab dredger 1 or the dredged soil 8 sent from the dredging vessel 6 via the hose transfer pipe 7 from the earth-sand pump. The sand supply means includes a hopper (not shown) capable of arbitrarily selecting an opening/closing angle for dropping the sand 112 by an appropriate control means (not shown), and arranging the supply amount (not shown): disposed below the hopper A sand supply device 102 such as a conveyor belt; a stirring tank 104 having a function of agitating sand 1, 2, mud 1, water, and the like; and the additive is a mixture of mud 121 The form is supplied to the receiving hopper 10 via a pump that can be controlled to a certain weight and flow rate. In addition, the muds 120 and 122 of the same quality may be supplied to the earth-sand storage tank 3 or the disintegrating mixer 2, and the mixture may be supplied to one of the receiving hopper 1, the earth-sand storage tank 3 or the disintegrating mixer 20. . The amount of the sludge to be fed to the mixture is determined by adjusting the solid content of the particle size of 1 mm or less in the dredged soil discharged from the receiving hopper 10 by a metering means to a predetermined amount. As used herein, "a certain amount of the solid component in the dredged soil (the thing left after removing moisture and garbage, etc.) means: the cement cake 60 which will be described later -11 - 201020218 Among the weight (dry weight) after moisture removal, the soil particle diameter is less than 1 mm~0. The amount when the weight of the soil particles of 〇75mrn or more is less than or equal to about 15%. In addition, if the soil particle diameter is less than 1mm~0. If the grain weight of 075 mm or more is 15% or more, the following problems may occur. The amount of sand added by A_ is increased, and the amount of processing is also increased. B. Processing time will be longer. ❹ C. The device will get bigger. D. The energy required for processing will be large. E. The amount of soil handled will also increase. F. Therefore, it becomes ineffective. For the reasons listed above, it is set to be less than 15%. Further, in the above process, the means for determining the amount of addition of the additive is as follows. (1) Based on the factors such as the size distribution of the dredged soil and the additive material and the sand raft obtained from the soil test, the calculation device for the computer is used to determine the amount of the added material, that is, the amount of sand, and the hopper drive process. In the middle, the calculated amount of sand is input through the hopper. (2) The dewatering time obtained by the test construction and the particle size distribution of the de-cemented cake can also be considered to determine the most suitable amount of sand added. (3) When it is added to the mixture, it is used from The quality of the sand and mud is determined by calculations such as a computer, and the amount of the mixture of -12-201020218 is determined by adding the optimum amount of sand obtained from the above steps. Further, means for measuring the amount of addition of the additive into a certain amount is as follows. "When sand is added" by adjusting the speed of the conveyor belt. Or adjust the degree of opening of the hopper (in two cases, one is added directly from the hopper; the other is added after the conveyor is first dropped). "When adding a mixture" First, measure the concentration of the mixture and grasp the change in the sand content. Alternatively, a flow meter (not shown) may be attached to the mixing pipe of the mixing body to perform the metering 0. As long as one of the two cases is considered to be optimal, it is combined into the sand supply process and even the mud 120 to 122. It can be used in the handling process. Further, the sand 112' used has a thickness of less than 1 mm to 0. The particle size range of 075 mm or more is preferably 50% or more. The sand having such a particle size functions as a filter layer when dewatering, and is also a particle size suitable for fluid transport. In addition, in the present invention, the sand to be added is not allowed to be contained in the case of containing a harmful substance or exceeding the environmental protection standard, and the water containing the stone powder, the metal, and other substances does not hinder the flow to the stirring tank 104. 105 is supplied from the clear water tank 19 via Lipu, and the water of the clean water tank 19 can be supplied to the receiving hopper 10 as (13) 13(). Further, the receiving hopper 10 is loaded with the dredged soil 8 sent from the dredging vessel 6 via the hose conveying pipe 7 from the earth-sand pump. Further, sometimes, if the fluidity of the slurry 106 is sufficiently high, or if the moisture of the dredged soil 8 is large, water may not be added. Further, the slurry 106 flowing to the agitation vessel 104 is supplied from a third muddy water receiving tank 47 which will be described later. This is supplied to prevent precipitation of the sand 112. A magnetic separator device 13 is provided in the soil sand transporting device 12, and a magnetic body such as an iron piece contained in the first soil sand 11 can be detected and transported to the magnetic force sorting device 13. The magnetic separation device 13 has a conveyor belt 14. A magnet 15 is disposed in the conveyor belt 14, and the conveyor belt 14 can suck the iron piece 16 contained in the soil sand conveyed by the conveyor belt, and when the sucked iron piece 16 is transported to a predetermined position, The chute 17 is transported to a predetermined place for collection. The component symbol 18 represents the iron piece 18 that is collected and accumulated. As a sub-step of the above-described soil sand conveying device 12, a disintegrating machine #20 is provided. This disintegrating mixer 20 is charged with the first soil sand 1 from the earth-sand handling device 12, and the first soil sand 1 1 is the soil sand from which the iron piece 16 has been removed. Further, the water in the clean water tank 19 is supplied by the pump. Further, a certain amount of the agitated mud 122 generated by the sand supply means is introduced into the disintegration mixer 20. Further, in the case where the slurry 120 or 121 having the same properties as the slurry 122 is supplied to the screen 9, it is not necessary to put the slurry 122 into the disintegrator 20. This mud 122 is a mixture of sand, water, and mud 106. The reason why such a mixture is used is because the mixture is liquid, so it is possible to efficiently manage the "fix-14-201020218 amount addition". The consideration of the homework. It is conceivable that if such a slurry 120 composed of a mixture is put into the earth-sand storage tank 3, the amount of work of the agitation-loader 4 will increase and the efficiency will deteriorate. Therefore, it is preferable to put the slurry 122 into the disintegration mixer 20. Further, the water in the first muddy water receiving tank 40 is supplied through the pump cycle, and water saving can be achieved. The sub-step of the disintegration mixer 20 is provided with a first soil sand separator 22 for supplying the first slurry 21, a second soil sand separator 23, and a second slurry 26 for supplying φ from the second soil sand separator 23. The second mud water receiving groove 27 is provided. The water in the second slurry water receiving tank 27 is supplied to the conical centrifugal separator 28 via a pump. The conical centrifugal separator 28 is used to separate the slurry into a heavier slurry and a lighter slurry, and the third slurry 29 from the conical centrifugal separator 28 is supplied to the third soil sand separator 31, and the fifth portion after the removal. The slurry 32 is introduced into the first soil sand separator 22. In addition, the first, second, and third earth-sand separators 22, 23, and 31 are supplied with water from the clean water tank 19 by φ, and are respectively provided with water 1 3 2, water 1 3 3 and water 131 °. The fourth earth-water separator 44 that is supplied from the fourth slurry 30 of the cone-shaped centrifugal separator 28 is placed in the third mud-water receiving groove 47 of the ninth slurry 46 from the fourth soil-sand separator 44. Further, a gravel washing machine 34 from which the second and third earth sands 24 and 25 of the first and second earth-sand separators 22 and 23 are supplied is provided. Further, there is provided a sand washing machine 41 which is put into the -15-201020218 4th soil sand 33 taken out from the 3rd soil sand separator 31; and a 6th slurry 36 which is supplied from the gravel washing machine 34 and is provided with The garbage and earth sand separator 37 of the seventh slurry 43 of the sand washing machine 41; the eighth slurry 38 discharged from the garbage and soil sand separator 37 is supplied to the first mud water receiving groove 40. Further, a slurry tank 49 having a stirrer to which a flocculating agent is supplied, that is, a PAC 50, and a sludge tank 48 having a stirrer to which the slaked lime 51 and the slurry water from the third muddy water receiving tank 47 are supplied are provided. @ The 10th slurry 52 from the mud tank 49 is supplied to the high pressure pump 55 via the second magnetic force sorting device 54 provided for the sludge pump 53, and the 11th slurry from the high pressure pump 55 56 is put into the high pressure type filter press 57. The filtered water 64 from the high pressure type filter press 57 is suitably treated, and the 12th slurry 71 generated in the process is supplied to the aforementioned sludge tank 48 °, and in the first to the second, the symbol 60 The system represents a dewatering cake discharged from the high pressure type filter press 57 and a conveyor belt for transporting the dewatered cake 60. Next, the processing method of the present invention will be described in further detail. First, the dredging vessel 1 is used to dredge the sediments of lakes, rivers, harbors, etc., and the dredged soil 2 is stored in the earth and sand storage tanks 3 from the mud boat. This kind of dredged soil 2 is a fine-grained component (soil particle diameter 〇. 〇75mm or less) a very high water content of dredged soil. The dredged soil 2 stored in the earth-sand storage tank 3 is first uniformly stirred by the stirring and loader 4 to become the soil sand 5. With this treatment, having -16-201020218: allows the separation of the screen 9 to be smoother in the next step. Further, the solid component corresponding to the dredged soil 2 put into the earth-sand storage tank 3 is put into a certain amount of the mixture which is made by the sand supply means and stirred, that is, the slurry 120. Further, as described above, if a mixture of the same quality as the slurry 120, that is, the slurry 121 or 122 is put into the screen 9 or the disintegrating mixer 20, it is no longer necessary to put the slurry 12 into the earth and sand storage. Slot 3. The mixed system corresponds to the solid content of the dredged soil discharged from the receiving hopper 10, and is adjusted to a certain amount before being supplied and transported. In this manner, a certain proportion of the sand 112 is added to the first and second dredged soils 2 or 8, so that the treatment steps until the dredged soil 2 or 8 and the sand 112 become the slurry 56 are in a homogeneous state. Therefore, the dredged soil which is mixed with a certain amount of sand can be shortened in the dehydration step (high pressure type filter press 57) described later, and the moisture content of the dewatered cake 60 can be reduced as a good alumina. The material is recycled. The soil sand 5 is introduced into the screen 9 by the agitator and loader 4. At this time, it is possible to visually confirm whether or not there is a large inclusion from the driver's seat of the agitator and loader 4 by visual means. The mesh of the screen 9 is about 100 mm to remove stones and inclusions. The inclusions in the earth and sand 5 sometimes contain large garbage such as locomotives and bicycles, and these inclusions are removed by manually washing the surface of the fine-grained muddy water. The function of this screen 9 is to make the first soil sand of the homogeneous soil 1 1 by allowing the dredged soil to pass through the screen to make the bulk of the fine-grained components in the dredged soil smaller. The first soil sand shovel -17-201020218 which has been ejected from the receiving hopper 1 through the screen 9 is transported to the disintegrating mixer 20 by the soil sand conveying device 12, and is put thereinto. If the first soil sand 11 which has passed through the screen 9 and which has been more homogenized has been removed, the metal sand sheet 11 is provided, and a magnetic separating device 13 is provided to move the first soil sand 11 on the soil sand conveying device 12. The metal piece can be removed during the period. A specific example of the magnetic separating device 13 may be such that a magnet 15 is provided inside the conveyor belt 14 orthogonal to the upper surface of the soil sand conveying device 12, and the metal piece contained in the first soil sand 11 is regarded as the iron piece 16. This is removed, and the iron piece is used as a structure in which the iron piece 18 is accumulated via the chute 17. In addition to the first soil sand 11 being supplied to the disintegrating mixer 20, a required amount of water 90 is simultaneously added from the clean water tank 19 based on the consideration that it is easier to separate on the vibrating screen. For example, if the moisture content of the dredged soil is about 200%, add about twice the amount of water (the muddy water concentration is about 20%). The supplied water may be supplied from the eighth slurry φ 3 8 of the first mud water receiving tank 40. The water of the clear water tank 19 can also be supplied to the sand washing machine 41 as water 91. The disintegration mixer 20 has a mechanism in which a vane is provided inside the rotating cylinder, and a rotating shaft provided with the same vane is provided at a position on the inner side of the cylinder that is offset from the cylinder shaft, and the mechanism can be rotated. The block-shaped fine particle component (soil particles of 74#m or less) among the first soil sands 11 in the interior is pulverized and separated, and it is possible to simultaneously perform stirring and moving the added water and the soil sand to make a homogeneous slurry. Functional device. This disintegrating mixer 20 can appropriately adjust the angle, the interval, the length, and the like of the outer and inner blades according to the size and amount of the block of the fine particle component to be pulverized, -18-201020218. As for the type of the disintegrating mixer 20, sometimes depending on the type of the soil sand, etc., the two-axis stirring blades in which a plurality of blades are mounted are overlapped with each other to rotate in opposite directions to each other. A paddle type stirring device capable of stirring and mixing the dredged soil and the added water. In addition, as for other examples of the disintegrating mixer 20, a spherical object (for example, an iron bullet) may be placed in advance on the inner side of the rotating cylinder, and the structure of the cylinder is: when rotating The spherical body located inside does not fall to the outer structure, and the block-shaped fine particle component which is put into the inner first soil sand 11 by the spherical object is pulverized into fine particles, and has: A device for performing the function of homogenizing mud for the agitation and movement of the added water and soil sand is performed. Further, other examples of the disintegrating mixer 20 include a tilting cylinder φ type rotary screen and a cylindrical rotary screen which can be stirred and mixed while adding water in the rotating cylinder to form a homogeneous slurry. Further, these devices also have a grading function, and therefore, if such a device is used, it may be used as the first soil sand separator 22 or the second soil sand separator 23. Further, in another example of the disintegration mixer 20, in the case where the dredging vessel 6 is used to carry out dredging by the earth-sand pump in another embodiment to be described later, the dredged soil 8 conveyed by the hose transfer pipe 7 is pressure-fed. The state of the earth sand coming over is directly sprayed toward the wall, and the block of fine-grained components is crushed by 19-201020218 to make a homogeneous slurry. This wall is installed in such a manner that, for example, a teapot-shaped steel pipe having a diameter several times larger than that of the hose transfer pipe 7 is disposed at a right angle with respect to the hose transfer pipe 7. The first slurry 21 treated by the disintegration mixer 20 is injected into a sieve of, for example, 25 mm of the first soil sand separator 22 to classify the second soil sand having a particle diameter of 25 mm or more and the soil sand having a particle diameter of 25 mm or less. Then, the third earth sand 25 having a particle diameter of 3 mm or more is divided into 0 stages by using, for example, a 3 mm screen of the second soil sand separator 23. The second slurry 26 having a particle diameter of 3 mm or less after passing through the second soil sand separator 23 is stored in the second mud water receiving groove 27. The two screens of the two first soil sand separators 22 and the second soil sand separators 23 may be arranged as one screen or three or more screens, depending on the scale, the quality of the mud, etc. To set it properly. In this embodiment, two soil sand separators are prepared, and the second slurry 26 treated by the second soil sand separator 23 as described above is introduced into the φ second mud water receiving groove 27. This second slurry 26 is pumped from the second mud water receiving groove 27 into the conical centrifugal separator 2 by pumping, and is separated into a fourth mud 30 which is smaller in specific gravity and lighter by the centrifugal separation function. The larger specific gravity is the heavier third mud. The third mud 2 9 passes through the third earth sand separator (vibrating screen) 31, for example, 〇. 7mm screen is graded to a particle diameter of 0. Soil sand 33 of 7mm or more. Particle size 0. The soil sand below 7 mm becomes the fifth mud 32. The fifth slurry 32 is joined to the first slurry 21' discharged from the disintegration mixer 20 from the upper portion, and the shower effect can be -20-201020218 to enhance the classification function. Then, it becomes the processing of the aforementioned 22 again. The water is supplied from the first and second earth-sand separators 22, the sand 24, and the third earth-sand 25, respectively, to the gravel washing machine 34. 3 Earth sand 2 5 is treated as different sizes of gravel 3 5 Sometimes it can be washed with its own _ for the purpose of use. In this washing process, it is separated into: "and attached to the surface of the gravel, etc., and mixed in the middle and the garbage." The "gravel" and "fine grain components" are physically forced to stir in the water. The "gravel" will precipitate immediately and accumulate at the bottom. The original ingredients are washed down, and the lighter garbage is not in the water. The period of stirring is in a different state of liquid φ, which can be separated into two types. One example of the gravel washing machine 34 is referred to as a U-shaped groove portion having a slightly larger diameter of a spiral blade having a rotatable diameter of about 1000, and is inclined at a predetermined angle. Because it is a machine that has a mechanism for setting the angle and the speed of rotation, it may stay for a long time. The gravel washing machine 34 is washed with water by the first soil sand separator 23 which is rotated by the rotating spiral blade soil sand 24 and the third earth sand 25 in the water. When the second soil sand 24 is used for the first time, the gravel washing machine is used to separate the particles of the fine particles of the gravel that can be effectively used, and the larger particles adhere to the surface. The particles precipitated but floated. Using both spiral blade washing machines, this spiral blade washing machine with a spiral blade: can be freely controlled to control the soil sand or the blade, etc., the second stirring, one side before the front-21 - 201020218 The separation of the soil particles described. Only 3mm or more, the rotary blade and the like are rotated upward to be transported above the water surface, and 35. The remaining components are treated as the sixth slurry 36. The type of the gravel washing machine 3 4 sometimes uses the spin and adds water to the second soil sand 24 and the third soil sand 25 to achieve the aforementioned separation function. 0 The 6th mud 3 6 series is put into the garbage and soil sand. The 7mm screen is left as a waste on the screen and is treated as industrial waste. The mud 38 is stored in the first mud water receiving groove 40. The water system of the first mud water receiving tank 40 is recycled as water of the machine 20. In this way, it is possible to have the advantage that the condition can be obtained even if the water supply is insufficient. In addition, significant water reduction can be achieved. Further, the fine-grained soil in φ water passes through the disintegrating mixer 20, and then the cement cake 60 is depleted for resource reuse. On the other hand, from the conical centrifugal separator 28 彳 30, it is separated in the fourth soil sand separator 44 to: the fifth earth sand 45 on the chopping slab and the first mud slag 4 through the 1 mm screen. The fifth earth sand 45 series and the fourth earth sand 33 are the same as the fourth soil sand 33, and the soil particles which are composed of the soil particles of 1 mm or more which are subjected to the same function as the gravel washing machine 34 can be effectively used and the soil particles are freely dropped into gravel. When the fluid is transferred to the rotating screen of the cylindrical screen, the off-machine, for example, the garbage 39 is piled up through the screen, and the eighth is added to the dissolving and stirring effect water, because the amount of water purchased is reduced. The fourth slurry which is contained in the bottom, which can be made into a non-extracted material, is placed in the sand washing machine 41 of the fine particle component of the 1 mm screen, and is separated by the J sand 42. The remaining -22-201020218 component is treated as the 7th slurry 43 in the same treatment as the 6th slurry 36. Sometimes, depending on the purpose of use of the sand 42, soil conditions, etc., it does not need to pass through the sand of the sand washing machine 41. In the washing process, the fifth earth sand 45 and the fourth earth sand 33 can be effectively used as the sand 42. In the gravel 35 treated by the gravel washing machine 34 and the sand 42 treated by the sand washing machine 41, the fine particle I component of the soil particles and the garbage having a relatively small specific gravity are hardly mixed. It can be used as a material with high utilization price. 3, sand 4 2 can be used effectively as, for example, road substrate, backside slab, artificial beach, concrete aggregate, etc. The ninth slurry 46 from the fourth soil sand separator 44 enters the third mud water receiving groove 47, and is pumped to the sludge tank 48. Further, the ninth slurry 46 is again sent from the sludge tank 48 to the mud tank 49 by pumping pressure. At this time, a necessary amount of the aggregating agent is added to the dry weight contained in the ninth slurry 46 to be pressure-fed, and it is uniformly mixed into the tenth slurry 52 by the stirring device in the slurry tank 49. (The agglutination agent differs depending on the soil quality, for example, about 3% of each of PAC 50 and slaked lime 51 can be added.) The stirring device means that, for example, a blade such as a spiral blade is provided on the outer circumference of the rotating shaft. A device for agitating a liquid by rotation of the blade. The 10th slurry 52 is pumped from the mud tank 49 by a high pressure pump 55 (pressure 4 MPa), and the 11th slurry 56 is driven into the high pressure type filter press 57. Occasionally, for the 10th slurry 52, before passing it through the high pressure pump 55-23-201020218, let it pass the 2nd magnetic sorting device 54 set up as needed to carry out the possibility A process of removing the minute iron piece 74 which causes dysfunction of the high pressure pump 55. One example of the high-pressure pump pump 55 is a device that transmits pressure to a slurry through a special rubber and performs pressure feed. Other examples of the high-pressure pump pump 55 include a special processing called a rotor that is rotatable on the inner side g, which is represented by the "Bingshen pulsation-free quantitative pump (manufactured by Bingshen Equipment Co., Ltd.)" The root screw and the female screw formed of an elastic material called the stator on the outer side can adjust the feed speed by the rotation speed of the rotor, and pressurize the pressured mud without pulsation. The device to be delivered. In addition, other examples of the high-pressure pump 55 include a device that uses a reciprocating motion of a hydraulic piston to perform sludge pumping of a slurry. The 11th slurry 56 was dehydrated by a high pressure type filter press 57 (4 MPa) to form a dewatered cake 60 (dehydration time of about 40 to 60 minutes). φ In this case, sand 1 12 is added to the first slurry 5 6 , so that when dewatering is performed, the sand 112 can function as a filtration layer to improve dewatering efficiency. The filtered water 64 discharged from the high pressure type filter press 57 is stored in the filter tank 65. Although this deposit is put into the sludge tank 48' as the slurry 71, a part of it is discharged by the drain water. The slurry 71 is again returned to the sludge tank 48 for reprocessing. The filter cloth washing water of the high pressure type filter press 57 and the washing water of the other machines are all concentrated in the first mud water receiving tank 40 for reprocessing. -24- 201020218 Dehydration of the 11th slurry 56 in the high pressure type filter press 57 The remaining components at the time of treatment are sent back to the mud tank 49 as residual mud for reprocessing. The dewatering cake 60 can also be pulverized into pulverized soil by a pulverizer or the like according to the purpose. The moisture content of the de-cemented cake 60 and the crushed soil is about 40 to 50%, which can be regarded as: road body filling soil, slope surface blowing and adhering soil, planting soil, etc., and effectively utilizing φ. As described above, the present embodiment has the following steps: From the dredged soil 2 originally stored in the earth-sand storage tank 3, the dredged soil which has been stirred and mixed by the stirring and loader 4, or the dredged ship by the soil sand pumping 6 In the dredged soil 8 that has been dredged and transported through the hose transfer pipe 7, a large-sized foreign matter such as large stones, coarse garbage, and wood chips is removed by the screen 9; sand 112 sent from the sand supply device 102 The water 105 and the slurry φ 106 are mixed and stirred in the agitation vessel 104, and the agitated mixture is supplied to the dredged soil of the earth-sand storage tank 3, the dredged soil 8 from the earth-sand pump pumping dredging vessel 6, or the disintegrating mixer. Step 20: The first soil sand 11 that has passed through the screen 9 is transported to the disintegrating mixer 20 by the soil sand conveying device 12, and the water 90 is added thereto, and the first slurry 21 is formed by the disintegrating mixer 20 In the first slurry 21, the second soil sand 24 having a predetermined particle diameter is separated by the first soil sand separator 22; and the mud having passed through the first soil sand separator 22 is utilized -25-201020218 2 The soil sand separator 23 separates the third soil sand 25 of a predetermined particle diameter; the second mud 26 that has passed through the second soil sand separator 23 is separated into a heavier third mud 29 by a conical centrifugal separator 28 and a step of separating the fourth slurry 30 from the third mud 29; a step of separating the fourth earth sand 33 having a predetermined particle diameter by the third soil sand separator 31; and having passed the third earth sand separator 31 The fifth slurry #32 passes through the first and second soil sand separators 22 and 23 and the conical centrifugal separator 28 again; and the lighter fourth portion separated by the conical centrifugal separator 28 The slurry 30 is a step of separating the fifth earth sand 45 having a predetermined particle diameter by the fourth soil sand separator 44; and the second and third earth sands 24 separated by the first and second earth sand separators 22 and 23 And 25, the step of separating the gravel 35 and the sixth slurry 36 by the gravel washing machine 34 while adding water; the first separated by the gravel washing machine 34 and the sand washing machine 41 6 mud 36, 7th mud 43, use garbage and soil sand a process of separating the off-machine 37 into the eighth slurry 38 and the garbage 39; adding and mixing the aggregating agent to the ninth slurry 46 that has passed through the fourth soil sand separator 44, and storing it in the slurry tank 49; The 10th slurry 52 of the mud tank 49 is supplied to the high pressure pump 55, and the 11th slurry 56 from the high pressure pump 55 is driven into the high pressure type filter press 57, and separated into the dewatered cake 60 and the filtered water 64. -26- 201020218 1-3 is a simplified flow chart showing the above process as an easy-to-understand flowchart. As described above, this first embodiment is to put the soil sand dredged by the grab dredger 1 into the soil sand storage tank 3 The first dredged soil after the agitation treatment or the second dredged soil from the earth-sand pump pumping dredging vessel 6 is put into the receiving hopper 1A having the screen 9, and the discharged soil sand 11 is passed through the disintegrating mixer 20, and then The first and second dredged soils are respectively introduced into a plurality of soil sand separators, and the gravel 0 and the sand are taken out, and the agglomerating agent is added to the muddy component for agitation treatment, and then subjected to a dehydration process to prepare a de-cement cake. In the case where the sand content is small, the fine particles of the sludge and the clay component are many, and the water content is high, the mixture of sand, water and mud is put into the soil sand storage tank 3, the aforementioned screen 9 or One of the aforementioned disintegrating mixers 20 is processed. Further, as described above, the mixing system is a standard embodiment in which a mixture of sand, water, and mud is used. However, if the fluidity of the slurry is high, it is not necessary to add water. Therefore, the supply of the foregoing from the clean water tank 19 can be stopped. The water 105 is provided as long as a mixture of sand and mud is provided. Further, if a large amount of fine particles are contained in the sand to be added, it is not necessary to add a slurry, and a mixture of sand and water can be used. [Example 2] Figure 2-1, 2-2 is a system diagram of a second embodiment of the present invention; and FIG. 2-3 is a flowchart showing a simplified process of the processing. -27-201020218 In the first embodiment, it is shown that the sand supply is composed of a stirring tank 104 which can stir the sand 12 from the sand supply device 102, the slurry 106, the water 105, and the like. The mixture made by the means is put into the earth-sand storage tank 3, the screen 9 or the disintegrating mixer 20. However, the second embodiment is characterized in that the sand supply means is simplified in the front section of the earth-sand storage tank 3. A sand supply device 100 for feeding the sand 110 is provided. Sand 110 is sent to the ground due to the solid content of the dredged soil. Then, the sand 11 〇 is directly put into the earth-sand storage tank 3, and is stirred by the agitator-loader 4 together with the dredged soil before being put into the receiving hopper 10, so that the equipment of this part can be simplified, and the equipment cost can be reduced. . Other structures and effects are the same as those of the foregoing embodiment. [Embodiment 3] Figs. 3-1 and 3-2 are system diagrams of a third embodiment of the present invention: Fig. 3-3 shows a schematic diagram of a processing procedure thereof in a flowchart. In the second embodiment described above, although the sand supply device 100 is provided in the front stage of the earth-sand storage tank 3, the third embodiment is characterized in that it is provided at a slightly front portion of the receiving hopper 10. The sand supplied to the sand 111 is supplied to the apparatus 1 0 1 . The supply amount of the sand 1 1 1 is the same as that of the second embodiment. Even with this structure, it is possible to correspond to fine-grained components (the soil particle diameter is not up to 〇. 〇75mm component) Very high moisture content dredged soil. -28- 201020218 [Embodiment 4] Figs. 4-1 and 4-2 are system diagrams of a fourth embodiment of the present invention: Fig. 4-3 shows a flow of a processing procedure thereof. This embodiment 4 is characterized in that a sand supply device 103 for introducing the sand 113 together with the aggregating agent into the sludge tank 48 is provided in the front stage of the sludge tank 48, and a slurry 52 in which the aggregating agent and the sand 113 are mixed is formed. This slurry 52 is supplied to a high pressure type filter press 57. As for the supply place of the sand 113, the sand 113 may be put into the mud_slurry tank 49 instead of putting the sand 1 13 into the sludge tank 48. Even in this way, it is possible to modify the high-moisture dredged soil having a large amount of fine particles. In the second to fourth embodiments described above, the soil sand dredged by the grab dredger 1 is sent to the first dredged soil after the agitation treatment of the soil sand storage tank 3 or the dredging ship 6 is sent from the soil sand pump. The second dredged soil is put into the receiving hopper 1 having the screen 9 for removing the garbage, and the discharged soil sand 1 is further introduced into a plurality of earth-soil φ separators through the disintegrating mixer 20, and taken out, Gravel, sand, and after adding a coagulant to the muddy component for agitation treatment, in the process of dewatering the cake through the dehydration process, if the first and second dredged soils are small in sand, the composition of the sludge and clay is fine. When the number of the components is large and the water content is high, the sand 110, 111, and 113 are placed in the soil sand storage tank 3, the screen 9, or the aggregating agent addition step to perform the treatment. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1-1 is a system diagram of a device according to a first embodiment of the present invention. "29 - 201020218 Fig. 1-2 is a subsequent system diagram of the apparatus of the first embodiment of the present invention. Fig. 1-3 is a flow chart showing a simplified process of the first embodiment of the present invention. Fig. 2-1 is a system diagram of the apparatus of the second embodiment of the present invention. Fig. 2-2 is a subsequent system diagram of the apparatus of the second embodiment of the present invention. 2-3 is a flowchart showing a simplified process of the second embodiment of the present invention. Fig. 3-1 is a system diagram of the apparatus of the third embodiment of the present invention. Fig. 3-2 is a subsequent system diagram of the apparatus of the third embodiment of the present invention. Fig. 3-3 is a flow chart showing a simplified process of the third embodiment of the present invention. Fig. 4-1 is a system diagram of the apparatus of the fourth embodiment of the present invention. • Fig. 4-2 is a subsequent system diagram of the apparatus of the fourth embodiment of the present invention. Fig. 4-3 is a flow chart showing a simplified process of the fourth embodiment of the present invention. [Main component symbol description] 1 : Grab-type dredging vessel 2: Dredging soil 3: Soil sand storage tank -30- 201020218 4 : Mixing and loading machine 5: Soil sand 6: Soil sand pump pressure dredging ship 7: Hose conveying pipe 8 : Dredging soil 9 : Screen 1 〇: Receiving hopper © 11: Soil sand 1 2 : Soil sand handling device 1 3 : Magnetic sorting device 14 : Conveyor belt 15 : Magnet 16 : Iron sheet 1 7 : Chute 18 : Iron sheet φ 1 9 : Clear water tank 20 : Disintegration mixer 2 1 : Mud 22 : Soil sand separator 23 : Soil sand separator 24 : Soil sand 25 : Soil sand 26 : Mud 27 : Mud water receiving tank -31 - 201020218 2 8 : Conical centrifugal separation Machine 29: Mud 3 0: Mud 3 1 : Soil Sand Separator 32: Mud 3 3 : Soil Sand 34: Gravel Washer
35 :礫 36 :泥漿 3 7 :垃圾暨土砂分離機 3 8 :泥漿 3 9 :垃圾 40 :泥水承接槽 4 1 :砂洗淨機 42 :砂 43 :泥漿 44 : 土砂分離機 4 5 : 土砂 46 :泥漿 47 :泥水承接槽 48 :貯泥槽 49 :泥槳槽35 : Gravel 36 : Mud 3 7 : Garbage and soil sand separator 3 8 : Mud 3 9 : Garbage 40 : Mud water receiving tank 4 1 : Sand washing machine 42 : Sand 43 : Mud 44 : Soil sand separator 4 5 : Soil sand 46 : Mud 47: Mud water receiving tank 48: Mud tank 49: Mud tank
5 0 ： PAC 5 1 :消石灰 -32- 201020218 泥漿 供泥泵浦 磁力選別裝置 高壓泵浦 泥漿 ❿ 高壓型壓濾機 輸送帶 脫水泥餅 過濾水 過濾水槽 水 大垃圾等 泥漿 :砂供給裝置 :砂供給裝置 :砂供給裝置 :砂供給裝置 :攪拌槽 :水 =泥漿 :砂 :砂 :砂 :砂 -33- 2010202185 0 : PAC 5 1 : slaked lime-32- 201020218 Mud mud pumping magnetic separation device high pressure pumping mud 高压 High pressure filter press conveyor belt dewatering cake filter water filtration tank water large garbage and other mud: sand supply device: sand Supply device: sand supply device: sand supply device: agitation tank: water = mud: sand: sand: sand: sand -33- 201020218
120 :泥漿 1 2 1 :泥漿 122 :泥漿 130 ：水 -34120: Mud 1 2 1 : Mud 122 : Mud 130 : Water -34