JP2015232245A - Sediment dredging flocculation treatment system and construction method - Google Patents

Sediment dredging flocculation treatment system and construction method Download PDF

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JP2015232245A
JP2015232245A JP2014119851A JP2014119851A JP2015232245A JP 2015232245 A JP2015232245 A JP 2015232245A JP 2014119851 A JP2014119851 A JP 2014119851A JP 2014119851 A JP2014119851 A JP 2014119851A JP 2015232245 A JP2015232245 A JP 2015232245A
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mud
flocculant
water
tank
separation
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中村 和夫
Kazuo Nakamura
和夫 中村
井上 浩志
Hiroshi Inoue
浩志 井上
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中村 和夫
Kazuo Nakamura
和夫 中村
井上 浩志
Hiroshi Inoue
浩志 井上
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PROBLEM TO BE SOLVED: To provide a sediment dredging flocculation treatment system that dredges a floating mud layer and a deposit surface layer by using a pump without disrupting a deposit and generating turbidity with the work, efficiently performing solid-liquid separation treatment of muddy water generated in large quantities to the dredging sediment, and enabling re-use or land temporary storage of the enriched flocculated sediment containing organic matter.SOLUTION: A sediment suction dredging device A (submersible pump with breaker) mounted in a back hoe C is operated by the positional information of GPS and the water depth information of the ultrasonic wave depth gauge, and the suction removal of the floating mud layer is managed along with the thin layer dredging. The muddy water generated in large quantities is efficiently treated by the solid-liquid separation treatment using a high-performance mineral hydrophobicity flocculating agent and a sediment flocculation precipitation separation device M of a voluntary design. The coagulum concentrated by the solid-liquid separation is charged in a receiving bag mounted with a filtration inner bag having a filtering function, and furthermore the decrease of capacity by filtration is promoted. A low-cost device and a processing technology are provided which are constituted of the thin layer dredging, the flocculation treatment and solid-liquid separation, and the natural dewatering in the receiving bag.

Description

本発明は、農業ダムやため池等の比較的小規模の農業治水設備に於ける、底泥浚渫凝集処理システムとその施工法に関する。
より詳しくは、底泥吸引浚渫装置と、当該装置操作用バックホーと、砂礫分離洗浄装置と、凝集剤供給装置と、凝集剤添加攪拌装置と、スラリー圧送ポンプと、底泥凝集沈降分離装置と、収容バックへの凝集底泥袋詰装置から構成される底泥浚渫凝集処理システム(以下、本システム)であり、軽量かつコンパクトに設計されているので、浚渫現場にトラック輸送し現地作業ヤードに配置後、各装置間を配線配管にて結合することで本システムを構築する。
バックホーオペレーターがGPSの位置情報および単数か複数の超音波測深器の水深情報により薄層浚渫を管理する底泥浚渫工法であり、薄層の浚渫を目的とした底泥吸引ヘッドと、当該装置操作用のバックホーの操作室において浚渫位置や底泥吸引ヘッドと底質面との相対的距離を把握し、底質を乱すことなく浮泥層と底質表層を薄層吸引することで作業に伴う濁りを発生させず、また処理対象となる底泥量を最小限に抑制できる底泥吸引浚渫装置(以下、浚渫装置)である。
放射能濃度の高い底泥が浚渫除去の場合は、放射性物質が強く付着している細粒分および有機物を浚渫除去の対象とし、処理底泥の減容化のために、砂礫分は砂礫分離洗浄装置(以下、砂礫装置)で分離し処理対象湖沼へと戻すものとする。
ポンプ浚渫により大量に発生する泥水は固液分離によって減容化するが、固液分離を促進するために高機能無機質疎水性凝集剤(以下、本凝集剤)を用いる。本凝集剤は紛体で自己凝集性が高く取り扱いが難しいので、凝集剤供給装置(以下、供給装置)にて本凝集剤をジェット水流で破砕分散し、凝醜剤添加撹拌装置(以下、撹拌装置)で泥水に均一に拡散させ付加撹拌する。
攪拌装置において凝集剤を添加撹拌処理した後、底泥凝集沈降分離装置(以下、分離装置)へスラリー圧送し、分離装置において中央部に放出された凝集処理泥水が中心部から外辺部へ同心円状に配置された整流板20mm〜5mmのメッシュを微流速で通過することで、結合粒子(以下、凝集体)が自重により沈降し、分離水は沈降槽の外辺上部の分離水ゲートからフローアップしながら分離水タンクへと流れ落ち排水ホースを経由し処理対象湖沼へと戻す。
また、沈殿分離槽底板上に沈殿した凝集体は、下部ホッパーの中心部へ沈殿底泥収集回転翼によって集められ下部ホッパーに溜まり、さらに凝集体は沈殿底泥攪拌回転翼にて撹拌されながら凝集濃縮が進み高濃度のスラリーとなり凝集底泥排出口より吸い出され、スラリー圧送ポンプにて凝集底泥袋詰装置へ圧送される。
凝集底泥袋詰装置(以下、袋詰装置)において、フィルタリング機能をもたせた濾過内袋を装着した複数の収容バックを支持枠組みに架け、凝集体は投入切替装置を経由し収容バックへ投入される。収容バック内の凝集体は時間経過とともに圧密と疎水性により濾過脱水され、発生した濾過水は濾過水パンで受けながら排水ホースを経由して処理対象湖沼に戻し、収容バック内部の凝集体は運搬に支障ない飽和含水率以下まで圧密濾過および自然脱水を進行させる。
以上の機能を供すると共に、普通トラックに積載可能な寸法形状で製作された軽量かつコンパクトな構造となっているので、浚渫対象が山間部の狭隘な場所や民家の密集した居住区であっても機材設置やシステム構築および底泥浚渫作業や凝集処理作業が容易となり、同様に山間僻地や市街地であっても普通トラックによる運搬可能な組立フロートにも搭載が可能なシステム設計になっており、機能性および作業効率に優れた本システムおよびその工法に関するものである。
The present invention relates to a bottom mud flocculation treatment system and its construction method in relatively small-scale agricultural flood control facilities such as agricultural dams and ponds.
More specifically, a bottom mud suction dredge device, a backhoe for operating the device, a gravel separation and cleaning device, a flocculant supply device, a flocculant addition stirring device, a slurry pump, a bottom mud agglomeration sedimentation device, A bottom mud coagulation treatment system (hereinafter referred to as this system) consisting of a coagulation bottom mud bagging device for the storage bag, which is designed to be lightweight and compact, transported by truck to the dredging site and placed in the local work yard Then, this system is constructed by connecting each device with wiring piping.
This is a bottom mud dredging method in which a backhoe operator manages thin layer dredging using GPS position information and water depth information from one or more ultrasonic sounding instruments. In the operation room of the backhoe, the relative position between the dredging position and the bottom mud suction head and the bottom sediment surface is grasped, and the floating mud layer and the bottom sediment surface are sucked into the thin layer without disturbing the bottom sediment. This is a bottom mud suction dredge device (hereinafter, dredging device) that does not generate turbidity and can minimize the amount of bottom mud to be treated.
When bottom mud with high radioactivity concentration is to remove soot, fine particles and organic matter to which radioactive materials are strongly attached are targeted for soot removal, and the gravel is separated to reduce the volume of treated bottom mud. It shall be separated by a cleaning device (hereinafter referred to as a gravel device) and returned to the target lake.
Muddy water generated in large quantities by the pump dredger is reduced in volume by solid-liquid separation, but a highly functional inorganic hydrophobic flocculant (hereinafter referred to as the present flocculant) is used to promote solid-liquid separation. Since this flocculant is a powder and has high self-aggregation properties and is difficult to handle, the flocculant is crushed and dispersed with a jet water flow in a flocculant supply device (hereinafter referred to as supply device), and a coagulant adding and stirring device (hereinafter referred to as stirrer) ) And uniformly agitate it in the muddy water.
After agitation agent is added and agitated in the agitator, the slurry is fed to the bottom mud agglomeration sedimentation separator (hereinafter referred to as “separator”), and the agglomerated muddy water discharged to the central part of the separator is concentric from the center to the outer edge. By passing the mesh of 20 mm to 5 mm of rectifying plates arranged in a shape at a slow flow rate, the bound particles (hereinafter, agglomerates) settle due to their own weight, and the separated water flows from the separated water gate at the upper part of the outer edge of the settling tank. It flows down to the separated water tank while returning to the target lake through the drainage hose.
Aggregates that have settled on the bottom plate of the sedimentation separation tank are collected by the sediment bottom mud collection rotor at the center of the lower hopper and collected in the lower hopper. Concentration progresses to become a high-concentration slurry, which is sucked out from the coagulated bottom mud discharge port, and is pumped to the coagulated bottom mud bagging device with a slurry pump.
In an agglomerated bottom mud bagging device (hereinafter referred to as a “bagging device”), a plurality of storage bags equipped with a filtering inner bag with a filtering function are placed on a support frame, and the aggregates are fed into the storage bag via the input switching device. The Aggregates in the storage bag are filtered and dehydrated over time due to compaction and hydrophobicity, and the generated filtrate is returned to the lake to be treated via the drainage hose while being received by the filtered water pan, and the aggregates in the storage bag are transported. Condensation filtration and natural dehydration are allowed to proceed to a saturated water content or less that does not hinder
In addition to providing the above functions, it has a lightweight and compact structure that is manufactured in a size and shape that can be loaded onto ordinary trucks, so even if the target is a confined area in a mountainous area or a densely populated residential area Equipment installation, system construction, bottom mud work and agglomeration work work are facilitated, and the system design that can also be mounted on assembly floats that can be transported by ordinary trucks even in mountainous and urban areas The present system and its construction method, which are excellent in workability and work efficiency.
通常の港湾や河川等の浚渫工事では、従来からクレーンに装備したグラブバケットで底泥を掘削し土運搬船に積み込むグラブ式浚渫が一般的であるが、海水や河川の汚濁が激しいことから、近年はポンプで底泥を吸引し土運搬船にスラリー圧送するポンプ浚渫方式が主流になりつつある。ポンプ浚渫では底泥と共に揚水してくる泥水を大量に発生させることになり、泥水の処理が課題となる。凝集剤を利用した既製の固液分離機や濾過フィルター装置での処理能力は限界が有り、大量に処理しようとすると装置が大掛かりとなり、共通仮設費も含めコストも高価となってしまう。 浚渫土量および泥水を抑える目的で、浮泥層を含む薄層部分の高濃度浚渫装置も開発されている。
特開2013−17989号(以下、特許文献1)には、ポンプ浚渫後の凝集剤を利用した固液分離処理工法があるが、薄層浚渫を対象にしておらず港湾浚渫に於ける一時仮受けとして土運搬船を利用し、陸上に大型の固液分離槽及び脱水槽を設けた工法であるが、薄層浚渫は困難であり浚渫設備および処理設備も大規模になっており、小規模浚渫に転用するのは不向きである。また凝集剤として無機質系を使用し環境には配慮されているが疎水性機能は有していないので、固液分離処理に時間を要し、大型の分離槽および沈殿槽が必要となる。分離後の凝集体も含水率が高いものとなってしまう。
特開2005−188057号(以下、特許文献2)には、薄層浚渫装置と浚渫工法が提案されており、通常のポンプ浚渫に比較して浚渫装置自体が大型で重量のある装置であるが、しかし時間当りの浚渫量は少なく、かつ気象海象条件に左右され易く稼働率が低いため、浚渫コストは高価なものとなってしまう。また、機械式脱水装置など陸上処理設備も通常は大掛りなものとなり処理コストも高価となってしまう。
The usual dredging work for harbors and rivers is generally a grab type dredging that uses a grab bucket equipped with a crane to excavate bottom mud and load it into a soil carrier. The pump dredging system that sucks the bottom mud with a pump and pumps the slurry to a soil carrier is becoming mainstream. The pump dredger generates a large amount of muddy water that is pumped together with the bottom mud, and the treatment of the muddy water becomes a problem. There is a limit to the processing capacity of a ready-made solid-liquid separator or filtration filter device using a flocculant, and if it is attempted to process in large quantities, the device becomes large, and the cost including common temporary costs becomes high. In order to reduce dredged soil volume and muddy water, high-concentration dredging equipment has been developed for thin layers including floating mud layers.
Japanese Patent Laid-Open No. 2013-17989 (hereinafter referred to as Patent Document 1) has a solid-liquid separation processing method using a flocculant after pump dredging, but it is not intended for thin layer dredging and is temporarily used in harbor dredging. The method uses a soil carrier as a receiver and has a large solid-liquid separation tank and dewatering tank on land. However, thin-layer dredging is difficult, and dredging and processing facilities are large. It is not suitable for diversion. In addition, although an inorganic system is used as a flocculant and the environment is considered, it does not have a hydrophobic function. Therefore, it takes time for solid-liquid separation treatment, and a large separation tank and a precipitation tank are required. Aggregates after separation also have a high water content.
Japanese Unexamined Patent Application Publication No. 2005-188057 (hereinafter referred to as Patent Document 2) proposes a thin-layer dredge apparatus and a dredge method, and the dredge apparatus itself is a large and heavy apparatus as compared with a normal pump dredge. However, the dredging cost per unit time is high because the dredging amount per hour is small and the operation rate is low because it is easily affected by weather conditions. Also, land treatment facilities such as mechanical dehydrators are usually large and processing costs are high.
特開3013−17989号公報JP 3013-17989 A 特開2005−188057号公報JP 2005-1888057 A
上記のいずれの工法も港湾における大量浚渫を目的としており、対象が農業ダムやため池等の山間僻地の内陸における少規模浚渫の場合は不適切となる。
浮泥層を含む表薄層の浚渫を行う工法は、浚渫装置が波や風による動揺の影響を受け易い構造なので、稼働率が低減し作業歩掛も低いものとなってしまう。
また、ポンプ浚渫によって大量に揚水してくる泥水を従来の工法で固液分離処理しようとすると装置は大掛りとなり、山間僻地では運搬のみならず装置を設置するための作業ヤードを確保するのも困難となる。
All of the above methods are aimed at mass dredging at harbors, and are inappropriate for small-scale dredging in inland mountainous areas such as agricultural dams and ponds.
The method of dredging the thin layer including the mud layer is a structure in which the dredger device is easily affected by fluctuations caused by waves and winds, so the operating rate is reduced and the work yield is low.
In addition, if a large amount of muddy water pumped up by a pump dredging is to be solid-liquid separated by the conventional method, the equipment becomes large, and it is possible to secure a work yard for installing equipment as well as transporting in mountainous areas. It becomes difficult.
本発明は、上記課題を鑑みてなされたもので、GPS位置情報と超音波測深器情報を用いることで格子付底泥吸引ヘッドの底質吸引状態を把握しつつバックホーによる底泥吸引浚渫装置の操作が可能となり、底質を乱たり汚濁を発生させること無く、浮泥層を含む底質表層ごと吸引揚泥する連続的な浚渫が可能となる。 The present invention has been made in view of the above-mentioned problems. By using GPS position information and ultrasonic sounding instrument information, the bottom mud suction dredge apparatus using the backhoe while grasping the bottom sediment suction state of the bottom mud suction head with a lattice is used. Operation becomes possible, and continuous dredging that sucks and lifts the entire sediment layer including the floating mud layer is possible without disturbing the bottom sediment or generating pollution.
本発明では本凝集剤を用いることで、当該凝集体の強い疎水性を有効に活用し、市販の防水機能を有しない透水性のフレキシブルコンテナバックもしくは大型土嚢袋にフィルタリング機能をもたせた濾過内袋を装着した収容バックに、濃縮された凝集体を脱水機等に介在させず直接収納することで装置を簡素化し搬出も容易となる。 In the present invention, by using the present flocculant, the strong hydrophobicity of the agglomerates is effectively utilized, and a commercially available water-permeable flexible container bag having no waterproof function or a filtration inner bag provided with a filtering function in a large sandbag bag By storing the concentrated agglomerates directly without interposing them in a dehydrator or the like, the apparatus can be simplified and unloaded easily.
本凝集剤は自己凝集性が高いために取扱が難しく、泥水に均一に拡散するように添加撹拌するのが困難であったが、その問題を解決するのが本発明で開発した凝集剤供給装置である。 The flocculant is difficult to handle due to its high self-flocculation property, and it was difficult to add and stir so as to diffuse uniformly in the muddy water, but the flocculant supply device developed in the present invention solves this problem. It is.
本凝集剤を使用することで、凝集体が疎水性となり撹拌するほど凝集体同士が吸着して更に大きな凝集体を形成し水中に沈降し易く成る性質を利用して開発したのが、連続的に凝集沈降分離が可能で軽量かつコンパクトな底泥凝集沈降分離装置である。 By using this flocculant, it was developed by utilizing the property that the aggregates become hydrophobic and agglomerates adsorb to form larger aggregates and settle easily in water as they are stirred. It is a lightweight and compact bottom mud coagulating sedimentation separator that can coagulate and settle.
本システムライン上に浚渫底泥が沈殿滞留するような構造を排した設計とし、稼働中にライン上に底泥や有機物等が溜まることはなく、また作業終了後は底泥吸引ヘッドを水面まで引上げ表層水を一定時間吸引送水する事でライン洗浄ができ保守管理が容易な本システムである。 Designed to eliminate the structure where dredged mud sediment settles on this system line, so that no mud or organic matter accumulates on the line during operation. This system is easy to maintain and manage because it can clean the line by sucking and feeding the pulled surface water for a certain period of time.
同規模ポンプ能力に対し薄層での浚渫を行うことで浚渫面積が拡がり、時間当の作業歩掛が向上する。 By performing dredging in a thin layer for the pump capacity of the same scale, the dredging area is expanded and the work allowance for time is improved.
本凝集剤と分離装置を組合せることで分離沈殿速度が上がり、時間当の処理歩掛が向上する。 By combining the present flocculant and the separation device, the separation / precipitation rate is increased, and the processing yield per hour is improved.
固液分離により濃縮した凝集体は沈殿槽や脱水装置等を介することなくフィルタリング機能をもたせた濾過内袋を装着した収容バックに直接投入することで、沈殿槽や脱水装置等の凝集体を再度運搬容器に詰め替える等の工程が簡素化できる。また収容バックごと運搬が可能なので搬出作業が容易となり、凝集体の内容物により運搬容器が汚されることが無いので保守管理が簡素化する。 Aggregates concentrated by solid-liquid separation are put directly into a storage bag equipped with a filtering inner bag with a filtering function without going through a settling tank or dehydrator, etc. Processes such as refilling a transport container can be simplified. Further, since the entire storage bag can be transported, the unloading work is facilitated, and the transport container is not soiled by the contents of the aggregate, so that maintenance management is simplified.
上記の理由により既存の工法と比較し、システムが軽量およびコンパクトなため、システム機材製作コストは大幅に安価となり運搬も含めた共通仮設費も大幅に低減できる。同様に保守点検に要する費用も大幅に削減できる。
ポンプ浚渫による時間当の底泥除去面積も大きくなり、固液分離による底泥処理量の作業効率も高いので、浚渫処理に要する費用も低減でき費用対効果が大幅に向上する。
For the above reasons, the system is lighter and more compact than existing methods, so the system equipment production costs are significantly lower and the common temporary costs including transportation can be greatly reduced. Similarly, the cost required for maintenance can be greatly reduced.
As the bottom mud removal area per hour by the pump dredging is increased and the work efficiency of the bottom mud treatment amount by solid-liquid separation is high, the cost required for dredging treatment can be reduced and the cost effectiveness is greatly improved.
本発明の底泥浚渫凝集処理システムフローの構成を示す図である。It is a figure which shows the structure of the bottom mud aggregation processing system flow of this invention. 作業用フロートとバックホーおよび底泥吸引浚渫装置との構成を示す図である。It is a figure which shows the structure of a work float, a backhoe, and a bottom mud suction dredge apparatus. 作業用フロート上に搭載する凝集処理装置で、砂礫分離洗浄装置と、凝集剤供給装置と、凝集剤添加攪拌装置と、スラリー圧送ポンプと、作業用水水槽との構成を示す図である。It is a flocculation processing device mounted on a work float, and is a diagram showing the configuration of a gravel separation and cleaning device, a flocculating agent supply device, a flocculating agent addition stirring device, a slurry pump, and a working water tank. 凝集剤分散液吐出装置の構造を示す図である。It is a figure which shows the structure of a coagulant | flocculant dispersion liquid discharge apparatus. 底泥凝集沈降分離装置と濁度モニターとの構成を示す図である。It is a figure which shows the structure of a bottom mud aggregation sedimentation apparatus and a turbidity monitor. 凝集底泥袋詰装置の構成を示す図である。It is a figure which shows the structure of an aggregation bottom mud bagging apparatus. 浚渫作業の施工イメージを示す図である。It is a figure which shows the construction image of a dredging work.
本発明の実施の形態を本発明装置に基づいて説明する。本発明の実施例の底泥浚渫凝集処理システムを図1に示す。底泥浚渫凝集処理システムは、底泥吸引浚渫装置Aと、作業用バックホーCと、砂礫分離洗浄装置Dと、排出管Eと、凝集剤添加攪拌装置Fと、スラリー圧送ポンプGと、凝集剤供給装置Hと、洗浄水用水槽Iと、底泥凝集沈降分離装置Mと、凝集底泥袋詰装置Nとからなるものであって、農業ダムやため池等の比較的小規模の農業治水設備において、浮泥層や底泥表層の有機物を含む泥を底泥吸引浚渫装置Aと作業用バックホーCとの組み合わせにより薄層浚渫することを特徴とし、また減容化のため砂礫分離洗浄装置Dで分離洗浄した砂礫は排出管Eを経由し可動排出配管e2を操作しながら処理対象湖沼の浚渫後底質面R3に戻し、底泥は泥水とともに凝集剤添加攪拌装置Fへ送られ凝集剤供給装置Hから供給される凝集剤分散液を添加し攪拌する。凝集剤により凝集した底泥の凝集体は、スラリー圧送ポンプGにより底泥凝集沈降分離装置Mに圧送され、凝集体と分離水に固液分離される。
分離された凝集体はスラリー圧送ポンプによって凝集底泥袋詰装置Nに送られ予め用意されている複数の収容バックに切替ながら収容し、圧密濾過と自然脱水が進行し機械装置を用いず脱水を行う。また濾過水パンに滲出した濾過水は分離水とともに処理対象湖沼に戻ことで、作業効率が高く設備コストおよび作業コストの低廉な底泥浚渫凝集処理システムを提供する。
An embodiment of the present invention will be described based on the apparatus of the present invention. A bottom mud coagulation treatment system according to an embodiment of the present invention is shown in FIG. The bottom mud flocculation treatment system includes a bottom mud suction dredge device A, a working backhoe C, a gravel separation and cleaning device D, a discharge pipe E, a flocculant addition stirring device F, a slurry pressure pump G, and a flocculant. It consists of a supply device H, a washing water tank I, a bottom mud coagulation sedimentation separation device M, and a coagulation bottom mud bagging device N, and is a relatively small-scale agricultural flood control facility such as an agricultural dam or pond. Is characterized in that mud containing organic matter from the floating mud layer and the bottom mud surface layer is dredged by a combination of the bottom mud suction dredge device A and the working backhoe C, and the gravel separation and washing device D is used for volume reduction. The sand and gravel separated and washed in step 1 is returned to the bottom sediment surface R3 of the lake to be treated while operating the movable discharge pipe e2 via the discharge pipe E, and the bottom mud is sent to the flocculant addition stirring device F together with the muddy water to supply the flocculant. Add the flocculant dispersion supplied from device H To 拌. The aggregate of the bottom mud aggregated by the coagulant is pumped to the bottom mud coagulation sedimentation separation apparatus M by the slurry pumping pump G, and solid-liquid separated into the aggregate and separated water.
The separated agglomerates are sent to the agglomerated bottom mud bagging device N by a slurry pressure pump and accommodated while being switched to a plurality of accommodation bags prepared in advance. Condensation filtration and natural dehydration proceed and dehydration is performed without using a mechanical device. Do. The filtered water that has oozed into the filtered water pan is returned to the lake to be treated together with the separated water, thereby providing a bottom mud coagulation treatment system with high work efficiency and low equipment costs.
本発明の実施例の底泥吸引浚渫装置Aを図2に示す。
底泥吸引浚渫装置Aは、吸引口格子a1と、吸引コーンa2と、破砕機付水中ポンプa3と、超音波測深器a4と、超音波測深機取付バーa5と、バックホー取付器具a6、GPS取付シャフトa7、GPSアンテナa8とから構成されるものであって、浚渫を行い底泥は後段へ輸送する。吸引口格子a1は異物の混入を防止しするもので、吸引コーンa2に破砕機付水中ポンプa3を嵌め込み、底質に堆積している木の葉や草本等は破砕機により破砕し底泥と共に吸引する。また浚渫作業を管理するため超音波測深器a4と、GPSアンテナa8とは、それぞれ超音波測深機取付バーa5と、GPS取付シャフトa7とに取り付けられ、浚渫に必要な底泥までの相対距離と浚渫した軌跡の情報をバックホーの操作室へリアルタイムに提供することで高い薄層浚渫能力を底泥吸引浚渫装置Aによって提供する。
A bottom mud suction dredge apparatus A according to an embodiment of the present invention is shown in FIG.
The bottom mud suction dredge device A includes a suction port lattice a1, a suction cone a2, a submersible pump a3 with a crusher, an ultrasonic sounding device a4, an ultrasonic sounding device mounting bar a5, a backhoe mounting device a6, and a GPS mounting. It is composed of a shaft a7 and a GPS antenna a8. The bottom mud is transported to the subsequent stage by dredging. The suction grille a1 prevents foreign matter from being mixed in. A submersible pump a3 with a crusher is fitted into the suction cone a2, and leaves and grasses accumulated in the sediment are crushed by the crusher and sucked together with the bottom mud. . In order to manage dredging work, the ultrasonic sounding instrument a4 and the GPS antenna a8 are respectively attached to the ultrasonic sounding instrument mounting bar a5 and the GPS mounting shaft a7, and the relative distance to the bottom mud required for the dredging The bottom mud suction dredge device A provides high thin-layer dredging capability by providing the information of the habit trajectory in real time to the operation room of the backhoe.
本発明の実施例の砂礫分離洗浄装置Dを図3に示す。
砂礫分離洗浄装置D(以下、砂礫装置)は、砂礫分離用のサイクロン装置d1と、砂礫洗浄装置d5と、水位維持槽d13とから構成されるものであって、減容化のため砂礫分離用サイクロン装置d1で底泥から砂礫を分離し、底泥は底泥排出口d4から次段へ流出し、砂礫は砂礫洗浄装置d5へ送られ砂礫に付着した汚泥を洗浄してのち洗浄砂礫排出口d9から処理対象湖沼に戻し、洗浄により生じた泥水は洗浄水排出口d14から次段へ流出すことで、処理底泥量の減容化が達成される。より詳しくは、砂礫洗浄装置d5の内筒である傾斜回転円筒d10と一体となった中空螺旋d11はモーターd12により駆動され低速回転し、下部の砂礫取入口d7から砂礫と汚泥を取り込み螺旋の回転輸送作用により攪拌洗浄しながら上部の洗浄砂礫排出口d3へと輸送するが、洗浄水は上部の洗浄水給水口d8より給水され中空螺旋d11の中空部を砂礫を洗浄しながら流下し、下方の砂礫取入口d7から水位維持槽d13へと流れ落ち洗浄水排出口d14から次段へ流出する。
本砂礫装置により、簡易な構造で砂礫分離を行い底泥量の減容化を実現して処理コストの削減を実現する砂礫分離洗浄装置Dを提供する。
A gravel separation / cleaning apparatus D according to an embodiment of the present invention is shown in FIG.
The gravel separation and cleaning device D (hereinafter referred to as gravel device) is composed of a cyclone device d1 for separating gravel, a gravel cleaning device d5, and a water level maintenance tank d13. The gravel is separated from the bottom mud by the cyclone device d1, the bottom mud flows out to the next stage from the bottom mud discharge port d4, the gravel is sent to the gravel cleaning device d5, and the sludge adhering to the gravel is washed, and then the washing gravel discharge port Returning to the lake to be treated from d9, the mud produced by the washing flows out from the washing water discharge port d14 to the next stage, thereby reducing the volume of the treated bottom mud. More specifically, the hollow spiral d11 integrated with the inclined rotating cylinder d10 which is the inner cylinder of the gravel cleaning apparatus d5 is driven by a motor d12 to rotate at a low speed, and gravel and sludge are taken in from the lower gravel inlet d7 to rotate the spiral. It is transported to the upper washing gravel discharge port d3 while stirring and washing by the transport action, but the washing water is supplied from the upper washing water supply port d8 and flows down the hollow portion of the hollow spiral d11 while washing the gravel, It flows down from the gravel inlet d7 to the water level maintenance tank d13, and flows out from the washing water outlet d14 to the next stage.
Provided is a gravel separation and cleaning apparatus D that achieves reduction in processing cost by separating gravel with a simple structure and reducing the volume of bottom mud by this gravel apparatus.
本発明の実施例の凝集剤供給装置Hと定量供給装置h6を図3に、破砕分散装置h12を図4に示す。
凝集剤供給装置H(以下、本供給装置)は、定量ホッパー装置h13と、吸引チューブh7と、高圧ポンプh10と、高圧ホースh11と、破砕分散装置h12、定量供給装置h6で構成されており、粉体凝集剤h9を破砕分散装置h12の分散セルh12-1内に於いてジェット水流h12-6で粉体凝集剤h9を瞬時に破砕し分散液として吐出する機能を持ち、自己凝集性の高く取扱いが難しい粉体凝集剤h9を熟練の技術を要せずに活用できる凝集剤供給装置Hを提供する。
FIG. 3 shows a flocculant supply device H and a quantitative supply device h6 according to an embodiment of the present invention, and FIG. 4 shows a crushing and dispersing device h12.
The flocculant supply device H (hereinafter, this supply device) includes a quantitative hopper device h13, a suction tube h7, a high-pressure pump h10, a high-pressure hose h11, a crushing and dispersing device h12, and a quantitative supply device h6. The powder flocculant h9 is instantly crushed by the jet water flow h12-6 in the dispersion cell h12-1 of the crushing and dispersing device h12 and discharged as a dispersion liquid. Provided is a flocculant supply device H that can utilize a powder flocculant h9 that is difficult to handle without requiring skill.
本発明の実施例の凝集剤供給装置Hを構成する定量ホッパー装置h13を図3に示す。
ここで云う定量ホッパー装置h13は、 凝集剤槽h1と、凝集剤槽蓋h3と、凝集剤落下口h4と、可変速モーターh5と、定量供給装置h6、固化防止装置h8と、粉体凝集剤h9とから構成されて おり、凝集剤槽h1に固化防止装置h8を取付て振動や衝撃を与え粉体凝集剤h9の固化を防ぎスムーズな流動化をはかる、また凝集剤落下口h4から粉体凝集 剤h9を定量供給装置h6へ流し込み、可変速モーターh5に結合された定量供給装置h6は回転数に比例した容積の凝集剤h6-2を凝集剤中継器h6-1の凹溝部h6-3に落とし、その凝集剤h6-2はエアチューブh7によりエア吸引ポートh12-5で吸引される。このようにして、凝集剤供給装置Hに最適な定量ホッパーを提供する。
FIG. 3 shows a quantitative hopper device h13 constituting the flocculant supply device H of the embodiment of the present invention.
The quantitative hopper device h13 referred to here includes a flocculant tank h1, a flocculant tank lid h3, a flocculant dropping port h4, a variable speed motor h5, a quantitative supply device h6, a solidification preventing device h8, and a powder flocculant. h9, and a solidification prevention device h8 is attached to the flocculant tank h1 to give vibration and impact to prevent solidification of the powder flocculant h9 and to achieve smooth fluidization. The coagulant h9 is poured into the fixed amount supply device h6, and the fixed amount supply device h6 coupled to the variable speed motor h5 transfers the coagulant h6-2 in a volume proportional to the rotational speed to the concave groove portion h6-3 of the coagulant relay h6-1. The flocculant h6-2 is sucked by the air tube h7 through the air suction port h12-5. In this manner, a quantitative hopper optimal for the flocculant supply device H is provided.
本発明の実施例の凝集剤添加攪拌装置Fを図3に示す。
凝集剤添加攪拌装置F(以下、本撹拌装置)は、凝集攪拌槽f1と、傾斜底板f2と、隔壁f3と、投入槽f4と、急速攪拌槽f5と、急速攪拌機f6と、緩速攪拌槽f7と、緩速攪拌機f8と、スラリー排出口f9とから構成されており、凝集攪拌槽f1の傾斜底板f2を分画する複数の隔壁f3にも下部に小開口が設けられ清掃時に内部に泥溜まりを生じない構造としたものであり、また投入槽f4と急速攪拌槽f5と緩速攪拌槽f7に3分画したものであり、砂礫分離洗浄装置Dの底泥排出口d4と洗浄水排出口d14から投入槽f4に投入された底泥は、急速攪拌槽f5で凝集剤供給装置Hから供給された分散液を加え急速攪拌機f6により攪拌混合され、凝集反応を起こした底泥は緩速攪拌槽f7へ移り緩速攪拌機f8によって緩速攪拌され凝集底泥はさらに大きな結合粒子(以下、凝集体)を作り、スラリー排出口f9から次段へ排出される。本撹拌装置の構成は簡素であるが、粉体凝集剤h9の持つ疎水性や高い凝集性を引き出すために重要な装置である凝集剤添加攪拌装置Fを提供する。
The flocculant addition stirring apparatus F of the Example of this invention is shown in FIG.
The flocculant addition stirring device F (hereinafter, this stirring device) includes a flocculant stirring tank f1, an inclined bottom plate f2, a partition wall f3, a charging tank f4, a rapid stirring tank f5, a rapid stirring machine f6, and a slow stirring tank. f7, a slow stirrer f8, and a slurry discharge port f9. A plurality of partition walls f3 that separate the inclined bottom plate f2 of the agglomeration stirring tank f1 are also provided with small openings in the lower part, and mud is formed inside during cleaning. It has a structure that does not cause accumulation, and is divided into a charging tank f4, a rapid stirring tank f5, and a slow stirring tank f7, and the bottom mud discharge port d4 of the gravel separation and cleaning device D and the cleaning water discharge The bottom mud charged into the charging tank f4 from the outlet d14 is added to the dispersion supplied from the flocculant supply device H in the rapid stirring tank f5 and stirred and mixed by the rapid stirrer f6. Move to agitation tank f7 and move slowly by slow agitator f8 The agglomerated bottom mud that has been agitated creates larger coupled particles (hereinafter, agglomerated) and is discharged from the slurry discharge port f9 to the next stage. Although the structure of this stirring apparatus is simple, the coagulant addition stirring apparatus F which is an important apparatus in order to extract the hydrophobicity and high cohesion which the powder coagulant h9 has is provided.
本発明の実施例の底泥凝集沈降分離装置Mを図5に示す。
底泥凝集沈降分離装置M(以下、本分離装置)は、凝集沈殿槽m2と下部ホッパーm5とからなる沈降分離槽m1、分離水タンクm3と、下部ホッパーm5と、凝集底泥排出口m6と、回転駆動軸m7とギアボックスm20とモーターm21からなる駆動装置と、収集翼m8と、攪拌翼m9と、分離水タンクm10と、吐出口m11と、整流メッシュm12と、分離水ゲートm13と、水位調整管m14と、分離水排出口m15とから構成されており、吐出口m11から放出された凝集体は同心円状に配された整流メッシュm12の中心部から外側へ微流速で広がる流れを形成し、凝集沈殿槽m2の外郭上端に設けられた分離水ゲートm13から分離水は越流し分離水タンクm3へ落下し水位調整管m14を経由し分離水排出口m15から排出され処理対象湖沼へと戻る。また微速の流れで整流板を通過することで、自重により凝集体は速やかに下部に沈降し、さらに収集翼m8により中心の下部ホッパーm5に集められる。その沈殿底泥は自重による圧密と攪拌翼m9の攪拌により凝集が進み一層濃縮された後、沈殿底泥排出口m6から吸出されスラリー圧送ポンプm22によって次段へと圧送されることによる連続的に凝集体と分離水とに固液分離する底泥凝集沈降分離装置Mを提供する。
The bottom mud coagulation sedimentation separation apparatus M of the Example of this invention is shown in FIG.
The bottom mud agglomeration sedimentation separation apparatus M (hereinafter, this separation apparatus) is composed of a sedimentation separation tank m1, a separation water tank m3, a lower hopper m5, a coagulation bottom mud discharge port m6, and a coagulation sedimentation tank m2 and a lower hopper m5. A driving device comprising a rotary drive shaft m7, a gear box m20 and a motor m21, a collecting blade m8, a stirring blade m9, a separated water tank m10, a discharge port m11, a rectifying mesh m12, a separated water gate m13, Consists of a water level adjustment pipe m14 and a separation water discharge port m15, and the aggregate discharged from the discharge port m11 forms a flow that spreads from the center of the rectifying mesh m12 arranged concentrically to the outside at a low flow rate. The separated water flows from the separated water gate m13 provided at the upper outer edge of the coagulation sedimentation tank m2 and falls into the separated water tank m3 and is discharged from the separated water discharge port m15 through the water level adjustment pipe m14 to the target lake. Return. Further, by passing through the current plate at a slow flow, the aggregates quickly settle to the lower part due to their own weight, and are further collected by the collecting blade m8 in the central lower hopper m5. The sedimentation bottom mud is continuously condensed by being condensed by its own weight and stirring by the stirring blade m9, and further condensed, and then sucked out from the sedimentation bottom mud outlet m6 and pumped to the next stage by the slurry pumping pump m22. Provided is a bottom mud coagulation sedimentation separation apparatus M for solid-liquid separation into an aggregate and separated water.
本発明の実施例の凝集底泥袋詰装置Nを図6に示す。
凝集底泥袋詰装置Nは、凝集底泥タンクn2と切替バルブn3と投入チューブn4とからなる凝集底泥投入切替装置n1と、支持フレームn5と、濾過水パンn6と、濾過水排出口n7と、濾過内袋n20と外袋n21とからなる収容バックn22とによって構成されており、所要数量の収容バックn22を濾過水パンn6上に展開し、圧送されてきた凝集体スラリーを連続的に袋詰めしていく凝集底泥袋詰装置Nを提供する。
An agglomerated bottom mud bagging apparatus N according to an embodiment of the present invention is shown in FIG.
The agglomerated bottom mud bagging apparatus N includes an agglomerated bottom mud tank switching device n1, which is composed of an agglomerated bottom mud tank n2, a switching valve n3, and a charging tube n4, a support frame n5, a filtered water pan n6, and a filtered water discharge port n7. And a storage bag n22 composed of an inner bag n20 and an outer bag n21. A required amount of the storage bag n22 is developed on the filtered water pan n6, and the agglomerated slurry is continuously fed. An agglomerated bottom mud bagging apparatus N for bagging is provided.
本発明の実施例の濾過内袋を図6に示す。
濾過内袋n20は多孔フィルム、逆浸透膜、濾紙又は不織布等の強度が有り透水性のある濾過膜であり、縫製や圧着や融着などにより製作され、外袋n21に内装することでフィルタリング機能を付与できることを特徴とする濾過内袋を提供する。
The filtration inner bag of the Example of this invention is shown in FIG.
Filtration inner bag n20 is a strong and water permeable filtration membrane such as porous film, reverse osmosis membrane, filter paper or non-woven fabric. It is manufactured by sewing, crimping or fusing, etc. It is possible to provide a filtration inner bag characterized in that
本発明の実施例の格子付吸引ヘッドa1を図2に示す。
格子付底泥吸引ヘッドa1は、格子に既製のグレチングを粘性の高い底質の浚渫に適した形状に加工したものを使用することで、空缶等の異物や大型の礫の吸引を防止するだけでなく、粘性度の高い底質にヘッドを貫入させる時の抵抗を大きくし底質表面をバックホーオペレーターが確認し易くするとともに、底質を削り出し易くし、ヘッド進行方向の後方からの泥水の侵入を抑え含泥率を上げる機能を付与できることを特徴とする格子付底泥吸引ヘッドを提供する。
FIG. 2 shows a suction head a1 with a lattice according to an embodiment of the present invention.
The bottom mud suction head a1 with a grid prevents the suction of foreign substances such as empty cans and large gravel by using a ready-made grating on the grid and processed into a shape suitable for dredged sediment with high viscosity. In addition to increasing the resistance when the head penetrates into the highly viscous bottom sediment, it makes it easier for the backhoe operator to check the bottom sediment surface, and also makes it easier to scrape the bottom sediment. Provided is a bottom mud suction head with a grid characterized in that it can be given a function of suppressing the intrusion of the mud and increasing the mud content.
本発明の実施例の破砕機付水中ポンプa3を図2に示す。
破砕機付水中ポンプa3において、グレチング格子を通過してきた木の葉や草本等の有機物を水中ポンプの破砕機で粉砕し細分化することで、砂礫分離サイクロンを通過させるとともに凝集剤によって凝集させ確実に沈降させることを目的とする破砕機付水中ポンプを提供する。
The submersible pump a3 with a crusher of the Example of this invention is shown in FIG.
In the submersible pump a3 with a crusher, organic matter such as leaves and herbs that have passed through the grating grid is pulverized and subdivided by the crusher of the submersible pump, allowing it to pass through the gravel separation cyclone and agglomerate with a flocculant to ensure sedimentation. A submersible pump with a crusher is provided.
本発明の実施例の作業用バックホーCを図2に示す。
作業用バックホーCにおいて、GPSアンテナa8の位置情報および単数または複数の超音波測深器a4の水深情報によりバックホーオペレーターが浚渫範囲と浚渫深さを管理しながら薄層浚渫することを特徴とする底泥浚渫工法を提供する。
A working backhoe C according to an embodiment of the present invention is shown in FIG.
In the working backhoe C, the bottom mud is characterized in that the backhoe operator makes a thin layer dredge while managing the dredging range and dredging depth based on the position information of the GPS antenna a8 and the water depth information of one or more ultrasonic sounding instruments a4. Provide dredging method.
本発明の実施例の底泥浚渫凝集処理システムを図1に示す。
底泥浚渫凝集処理システムは、普通トラックに積載可能な寸法形状で製作された軽量かつコンパクトな構造であり、浚渫対象が山間部の狭隘な場所や民家の密集した居住区であっても、機材設置や構築および底泥浚渫作業や凝集処理作業が容易としたことを特徴とする底泥浚渫凝集処理工法を提供する。
A bottom mud coagulation treatment system according to an embodiment of the present invention is shown in FIG.
The bottom mud agglomeration processing system is a lightweight and compact structure that is manufactured in a size and shape that can be loaded on a normal truck. Even if the target is a narrow area in a mountainous area or a densely populated residential area, the equipment Provided is a bottom mud coagulation treatment method characterized by easy installation, construction, bottom mud work and coagulation treatment work.
本発明の実施例の粉体凝集剤h9と凝集剤供給装置Hを図3に示す。
粉体凝集剤h9は高機能無機質疎水性凝集剤であり、本発明で開発した凝集剤供給装置Hと組合せて使用することにより、疎水性と、瞬間凝集性と、凝集体同士の再凝集性という特徴および機能を最大に活用することで短時間に大量の底泥の固液分離処理を行うことを特徴とする底泥浚渫凝集処理工法を提供する。
FIG. 3 shows the powder flocculant h9 and the flocculant supply apparatus H of the embodiment of the present invention.
The powder flocculant h9 is a highly functional inorganic hydrophobic flocculant, and when used in combination with the flocculant supply apparatus H developed in the present invention, the hydrophobic flocculant, the instantaneous flocculence, and the reaggregation between the flocculants The bottom mud flocculation treatment method is characterized by performing solid-liquid separation processing of a large amount of bottom mud in a short time by making the best use of the features and functions.
本発明の実施例の収容バックn22を図6に示す
収容バックn22に袋詰した凝集体を運搬に支障ない飽和含水率以下まで自然濾過することにより、収容バックごと容易に搬出できることを特徴とする底泥浚渫凝集処理工法を提供する。
The storage bag n22 of the embodiment of the present invention is characterized by being able to be easily carried out together with the storage bag by naturally filtering the aggregate packed in the storage bag n22 shown in FIG. Provide the bottom mud coagulation treatment method.
本発明の実施例の底泥浚渫凝集処理システムを図1に示す。
底泥浚渫凝集処理システムにおいて、底泥吸引浚渫装置の薄層吸引によって浚渫土量を抑え、砂礫分離洗浄装置で砂礫を分離し湖底へ戻すことで凝集土量を抑え、疎水性凝集剤添加と底泥凝集沈降分離装置にて水分を分離し、収容バックにて圧密濾過ないし自然脱水により最終処分底泥量を減容化することを特徴とする底泥浚渫凝集処理工法を提供する。
A bottom mud coagulation treatment system according to an embodiment of the present invention is shown in FIG.
In the bottom mud agglomeration treatment system, the amount of dredged soil is suppressed by thin layer suction of the bottom mud aspiration dredging device, the gravel is separated by the gravel separation and washing device and returned to the lake bottom, the amount of agglomerated soil is suppressed, and the hydrophobic flocculant is added. Provided is a bottom mud flocculation treatment method characterized in that water is separated by a bottom mud agglomeration sedimentation apparatus, and the final disposal bottom mud volume is reduced by compaction filtration or natural dehydration in a storage bag.
本システムは農業ダムやため池等の比較的小規模の農業治水設備を対象としているが、重機および設備を大型化する事で、大規模なダム湖等の底質浚渫にも適用可能である。
本システムの特筆すべき点は、放射性物質が強く付着していると云われる75μm以下の細粒分と有機物が多く含まれる浮泥層および底質表層を効率良くかつ確実に浚渫除去し、浚渫除去した底泥を効率良くかつ安価に減容化することに適した工法と云えることである。
底質表層を確実に除去するには貯水を排水して陸上重機で底質を掘削除去するドライ工法も有るが、高濃度の浮泥層や表層底質を流出拡散させてしまう可能性が大きい。貯水したまま底質を除去するにはポンプ浚渫に頼るしかなく、ポンプ浚渫によって大量に揚水してくる放射性物質を含んだ底泥を効率良く固液分離し減容化を図り、分離水から確実に放射性物質を除去するのが本凝集剤であり、鋭意研究した成果による本システムである。

This system is intended for relatively small-scale agricultural flood control facilities such as agricultural dams and ponds, but it can also be applied to bottom sediments such as large dam lakes by increasing the size of heavy machinery and equipment.
The special point of this system is that it efficiently and reliably removes the mud layer and the bottom surface layer containing a lot of organic matter and fine particles of 75μm or less, which are said to have strong radioactive substances. It can be said that this method is suitable for reducing the volume of the removed bottom mud efficiently and at low cost.
There is also a dry method that drains the stored water and excavates and removes the bottom sediment with onshore heavy machinery to remove the bottom sediment surface layer reliably, but there is a high possibility of spilling and diffusing high-concentration floating mud layer and surface sediment. . The only way to remove the bottom sediment while storing water is to rely on a pump dredge, and the solid mud containing the radioactive material pumped up by the pump dredge is efficiently solid-liquid separated for volume reduction, ensuring reliable separation from the separated water. It is this flocculant that removes radioactive materials at the same time, and this system is the result of earnest research.

A :底泥吸引浚渫装置
a1 :吸引口格子
a2 :吸引コーン
a3 :破砕機付水中ポンプ
a4 :超音波測深器
a5 :超音波測深機取付バー
a6 :バックホー取付器具
a7 :GPS取付シャフト
a8 :GPSアンテナ
B :作業用フロート
b1 :組立式フロート
b2 :複胴ウインチ
b3 :フェアリーダー
b4 :アンカーライン
b5 :バックホー旋回中心
C :バックホー
c1 :モニター室
c2 :バックホーアーム
c3 :アタッチメント
D :砂礫分離洗浄装置
d1 :砂礫分離サイクロン装置
d2 :浚渫底泥投入口
d3 :砂礫分離排出口
d4 :底泥排出口
d5 :砂礫洗浄装置
d6 :外筒
d7 :砂礫取入口
d8 :洗浄水給水口
d9 :洗浄砂礫排出口
d10 :傾斜回転円筒
d11 :中空螺旋
d12 :モーター
d13 :水位維持槽
d14 :洗浄水排出口
E :砂礫排出管
e1 :砂礫ホッパー
e2 :可動排出配管
F :凝集剤添加攪拌装置
f1 :凝集攪拌槽
f2 :傾斜底板
f3 :隔壁
f4 :投入槽
f5 :急速攪拌槽
f6 :急速攪拌機
f7 :緩速攪拌槽
f8 :緩速攪拌機
f9 :スラリー排出口
f10 :スラリー圧送ポンプ
H :凝集剤供給装置
h1 :凝集剤槽
h2 :免震ゴム
h3 :凝集剤槽蓋
h4 :凝集剤落下口
h5 :可変速モーター
h6 :定量供給装置
h6-1:凝集剤供給器
h6-2:凝集剤
h6-3:凹溝部
h6-4:エア吸引口
h7 :エアチューブ
h8 :固化防止装置
h9 :粉体凝集剤
h10 :高圧ポンプ
h11 :高圧ホース
h12 :破砕分散装置
h12-1:分散セル
h12-2:分散液吐出口
h12-3:高圧水供給ポート
h12-4:ジェットノズル
h12-5:エア吸引ポート
h12-6:ジェット水流
h13 :定量ホッパー装置
I :作業用水水槽
i1 :水中ポンプ
i2 :洗浄水
i3 :洗浄水水面
i4 :フローアップ水
i5 :汎用ポンプ
J0 :カップリングジョイント
J1 :浚渫底泥ホース
J2 :陸送スラリーホース
J3 :分離水ホース
J4 :高濃度スラリーホース
J5 :濾過水ホース
J6 :排出水ホース
J7 :揚水ホース
J8 :余水ホース
J9 :洗浄水ホース
J10 :浄水ホース
J11 :凝集剤ホース
K :濁度モニタータンク
k1 :透過型水槽
k2 :濁度光学モニター取付ボス
M :底泥凝集沈降分離装置
m1 :沈降分離槽
m2 :凝集沈降槽
m3 :分離水タンク
m4 :沈殿分離槽底板
m5 :下部ホッパー
m6 :沈殿底泥排出口
m7 :回転駆動軸
m8 :収集翼
m9 :攪拌翼
m10 :分離水タンク
m11 :吐出口
m12 :整流メッシュ
m13 :分離水ゲート
m14 :水位調整管
m15 :分離水排出口
m16 :支持枠
m20 :ギアボックス
m21 :モーター
m22 :スラリー圧送ポンプ
N :凝集底泥袋詰装置
n1 :凝集底泥投入切替装置
n2 :凝集底泥タンク
n3 :切替バルブ
n4 :投入チューブ
n5 :支持枠組
n6 :濾過水パン
n7 :濾過水排出口
n20 :濾過内袋
n21 :外袋
n22 :収容バック
R1 :底質
R2 :浚渫前底質面
R3 :浚渫後底質面
R4 :湖水面
R5 :陸上地盤面




























A: Bottom mud suction rod device a1: Suction port lattice a2: Suction cone a3: Submersible pump with crusher a4: Ultrasonic sounding device a5: Ultrasonic sounding device mounting bar a6: Backhoe mounting tool a7: GPS mounting shaft a8: GPS Antenna B: Work float b1: Assembled float b2: Duplex winch b3: Fair leader b4: Anchor line b5: Backhoe swivel center C: Backhoe c1: Monitor room c2: Backhoe arm c3: Attachment D: Gravel separation and cleaning device d1 : Sand gravel separation cyclone device d2: Mine bottom mud inlet
d3: Gravel separation outlet d4: Bottom mud outlet d5: Gravel cleaning device d6: Outer cylinder d7: Gravel inlet d8: Wash water inlet d9: Wash gravel outlet d10: Inclined rotating cylinder d11: Hollow spiral d12: Motor d13: Water level maintenance tank d14: Wash water discharge port E: Gravel discharge pipe e1: Gravel hopper e2: Movable discharge pipe F: Flocculant addition stirring apparatus f1: Aggregation stirring tank f2: Inclined bottom plate f3: Partition f4: Input tank f5: Rapid stirring tank f6: Rapid stirring machine f7: Slow stirring tank f8: Slow stirring machine f9: Slurry discharge port f10: Slurry pumping pump H: Coagulant supply device h1: Coagulant tank h2: Seismic isolation rubber h3: Coagulant tank lid h4: flocculant dropping port h5: variable speed motor h6: quantitative supply device h6-1: flocculant feeder h6-2: flocculant h6-3: concave groove h6-4: air suction port h7: air tube h8: solidification Prevention device h9: Powder flocculant h10: High pressure pump h11: High pressure hose h12: Crushing and dispersing device h12-1: Dispersion cell h12-2: Dispersion outlet h12-3: High pressure water supply port h12-4: Jet nozzle h12-5 : Air suction port h12-6: Jet water flow h13: Metering hopper device I: Working water tank i1: Submersible pump i2: Washing water i3: Washing water surface i4: Flow-up water i5: General-purpose pump J0: Coupling joint J1: Trap Bottom mud hose J2: Land transport slurry hose J3: Separation water hose J4: High concentration slurry hose J5: Filtration water hose J6: Drainage hose J7: Pumping hose J8: Sewage hose J9: Wash water hose J10: Clean water hose J11: Aggregation Agent hose K: Turbidity monitor tank k1: Permeable water tank k2: Turbidity optical monitor mounting boss M: Bottom mud coagulating sedimentation separator m1: Sedimentation separation tank m2: Settling tank m3: Separation water tank m4: Settling tank bottom plate m5: Lower hopper m6: Settling mud discharge port m7: Rotary drive shaft m8: Collection blade m9: Stirring blade m10: Separation water tank m11: Discharge port m12: Rectification Mesh m13: Separation water gate m14: Water level adjustment pipe m15: Separation water discharge port m16: Support frame m20: Gear box m21: Motor m22: Slurry pump N: Aggregate bottom mud bagging device n1: Aggregation bottom mud input switching device n2 : Condensed bottom mud tank n3: Switching valve n4: Input tube n5: Support frame n6: Filtered water pan
n7: Filtration water outlet n20: Filtration inner bag n21: Outer bag n22: Containment bag R1: Bottom sediment R2: Bottom sediment surface R3: Bottom sediment surface R4: Lake surface R5: Land surface




























Claims (16)

  1. 底泥吸引浚渫装置と、作業用バックホーと、砂礫分離洗浄装置と、凝集剤供給装置と、凝集剤添加攪拌装置と、スラリー圧送ポンプと、底泥凝集沈降分離装置と、収容バックへの凝集底泥袋詰装置とから成ることを特徴とする底泥浚渫凝集処理システム。 Bottom mud suction dredge device, work backhoe, gravel separation and cleaning device, flocculant supply device, flocculant addition stirring device, slurry pump, bottom mud agglomeration sedimentation separation device, and agglomerated bottom to the storage bag A bottom mud coagulation treatment system characterized by comprising a mud bagging device.
  2. 請求項1記載の底泥吸引浚渫装置において、格子付底泥吸引ヘッドと、破砕機付水中ポンプと、単数または複数の超音波測深器およびその取付部と、GPSアンテナと、バックホー取付器具とを設けて成ることを特徴とする底泥吸引浚渫装置。 The bottom mud suction dredge device according to claim 1, wherein a bottom mud suction head with a lattice, a submersible pump with a crusher, one or a plurality of ultrasonic sounding instruments and their attachments, a GPS antenna, and a backhoe attachment device. A bottom mud suction dredge device characterized by being provided.
  3. 請求項1記載の砂礫分離洗浄装置において、砂礫分離サイクロン装置と、傾斜回転円筒の外筒上部には砂礫排出口および洗浄水給水口とを設け下部には砂礫取込口とモーターにより駆動される内筒である傾斜回転円筒とその内部に中空螺旋を設けた砂礫洗浄装置と、泥水の排出口の高さに水位を満たす洗浄水槽とを設けてなることを特徴とする砂礫分離洗浄装置 2. The gravel separation and cleaning apparatus according to claim 1, wherein the gravel separation cyclone device and the gravel discharge port and the washing water supply port are provided at the upper part of the outer cylinder of the inclined rotating cylinder, and the gravel intake and motor are driven at the lower part. A gravel separation and cleaning device comprising an inclined rotating cylinder as an inner cylinder, a gravel cleaning device provided with a hollow spiral inside thereof, and a cleaning water tank satisfying the water level at the height of a muddy water discharge port
  4. 請求項1記載の凝集剤供給装置において、定量ホッパー装置と、高圧水ポンプと、粉体凝集剤をジェット水流により生じる負圧の気流により吸引するエア吸引ポートと粉体凝集剤をジェット水流で破砕分散を行う分散セルと高圧水供給ポートと破砕分散した紛体凝集剤の分散液の吐出口との構造を持つ破砕分散装置とを設けて成ることを特徴とする凝集剤供給装置。 2. The flocculant supply device according to claim 1, wherein the quantitative hopper device, the high-pressure water pump, the air suction port for sucking the powder flocculant by the negative pressure air flow generated by the jet water flow, and the powder flocculant are crushed by the jet water flow. A flocculant supply device comprising: a dispersion cell that performs dispersion, a high-pressure water supply port, and a crushing and dispersing device having a structure of a discharge port for a dispersion liquid of the pulverized powder flocculant.
  5. 請求項1と請求項4に記載の凝集剤供給装置を構成する定量ホッパー装置は、凝集剤槽と、凝集剤槽の紛体凝集剤に流動性確保のため加震か繰返し衝撃を与える固化防止装置と、紛体凝集剤の定量供給装置と、定量供給装置からの粉末凝集剤の供給を受止める凹溝部とからなり、凹溝部で受止めた粉体凝集剤はエアチューブを経由して外部からエア吸引されることによって紛体凝集剤を供給することを特徴とする定量ホッパー装置。 A quantitative hopper device constituting the flocculant supply device according to claim 1 and claim 4 includes a flocculant tank, and a solidification preventing apparatus that applies vibration or repeated impact to the powder flocculant in the flocculant tank to ensure fluidity. And a powder flocculant quantitative supply device, and a concave groove portion that receives the supply of the powder flocculant from the quantitative supply device, and the powder flocculant received in the concave groove portion is externally aired via an air tube. A quantitative hopper device, wherein a powder flocculant is supplied by being sucked.
  6. 請求項1記載の凝集剤添加攪拌装置において、投入槽側から排出口へ下り傾斜した底板を持つ処理槽と、小容積の投入槽と撹拌槽とに2分画する隔壁と、撹拌槽には単数または複数の撹拌装置と、隔壁下部に設けた滞留防止用の開口とによって成ることを特徴とする凝集剤添加攪拌装置。またはこれに加えて攪拌槽をさらに2分画する前述の隔壁を追加し、その各々を急速攪拌槽と緩速攪拌槽とし急速攪拌槽には急速攪拌機および緩速攪拌槽には緩速攪拌機を加え急速攪拌処理から緩速攪拌処理の2段階の攪拌処理が可能で、底泥や有機物等が溜まることはなく、作業終了後の洗浄の容易な構造を特徴とする凝集剤添加攪拌装置。 The flocculant addition stirring apparatus according to claim 1, wherein a processing tank having a bottom plate inclined downward from the charging tank side to the discharge port, a partition wall divided into a small volume charging tank and a stirring tank, and a stirring tank include: A flocculant addition stirring device comprising one or a plurality of stirring devices and an opening for preventing retention provided at a lower part of the partition wall. Or, in addition to this, the above-mentioned partition for further dividing the stirring tank into two parts is added, each of which is a rapid stirring tank and a slow stirring tank, and a rapid stirring tank and a slow stirring tank are installed in the rapid stirring tank and the slow stirring tank, respectively. In addition, the flocculant addition stirring device is characterized in that it can perform two-step stirring processing from rapid stirring processing to slow stirring processing, does not accumulate bottom mud, organic matter, etc., and has an easy-to-clean structure after completion of work.
  7. 請求項1記載の底泥凝集沈降分離装置において、泥と水の分離を担う凝集沈降槽と沈殿した泥を貯める下部ホッパーとで成る底泥凝集沈降分離槽と、分離水を排出するため凝集沈降槽の外郭上部に設けた分離水ゲートと、凝集沈降槽を囲い分離水の落下を受ける分離水タンクと分離水を排出する分離水排出口とを持ち、上部の凝集沈殿槽の中央には外部より圧送されてきた処理凝集底泥を投入するための吐出口と、さらに凝集沈殿槽には吐出口を中心に同心円状に複数枚を配して整流と沈降を促す整流メッシュと、加えて凝集沈殿室の下部に沈殿した底泥を回転により下部ホッパー集める収集翼と、さらに下部ホッパーの沈降底泥の濃縮を促す攪拌翼と、加えて下部ホッパー最下部に収集翼と攪拌翼との回転駆動装置と沈殿底泥排出口と、沈殿底泥排出口から沈降底泥を吸引し次段の処理装置へ送出するスラリー送出ポンプとを設けて成ることを特徴とする底泥凝集沈降分離装置。 The bottom mud coagulation sedimentation separation apparatus according to claim 1, wherein the bottom mud coagulation sedimentation tank comprises a coagulation sedimentation tank for separating mud and water and a lower hopper for storing the precipitated mud, and coagulation sedimentation for discharging the separated water. There is a separation water gate provided at the upper part of the outer shell of the tank, a separation water tank that surrounds the coagulation sedimentation tank and receives the fall of the separation water, and a separation water discharge port for discharging the separation water. Discharge port for feeding the treated agglomerated bottom mud that has been pumped more, a rectifying mesh that concentrically arranges a plurality of concentric sediments around the discharge port in the agglomeration sedimentation tank, and agglomeration in addition A collection blade that collects the bottom mud that has settled in the lower part of the sedimentation chamber by rotation, a stirring blade that promotes concentration of the sediment in the lower hopper, and a rotational drive of the collection blade and stirring blade at the bottom of the lower hopper Equipment, sediment bottom mud outlet, sedimentation Sediment agglomeration precipitator, characterized in that sucking precipitated sediment from the bottom mud outlet comprising providing a slurry delivery pump to be sent to the next stage of the processing apparatus.
  8. 請求項1記載の凝集底泥袋詰装置において、外袋として市販の防水機能を有しない透水性のフレキシブルコンテナバックもしくは大型土嚢袋にフィルタリング機能をもたせた濾過内袋を装着した収容バックと、複数の収容バックを支持する支持枠組と、収容バックから出る濾過水を受ける濾過水パンと、収容バックへの凝集底泥投入切替装置とを設けて成ることを特徴とする凝集底泥袋詰装置。 The aggregation bottom mud bagging apparatus according to claim 1, wherein a water permeable flexible container bag that does not have a waterproof function as an outer bag or a storage bag equipped with a filtering inner bag having a filtering function on a large sandbag bag, A coagulated bottom mud bagging apparatus comprising: a support frame that supports the storage bag; a filtered water pan that receives filtrate from the storage bag; and an aggregate bottom mud input switching device for the storage bag.
  9. 請求項8記載の凝集底泥袋詰装置の濾過内袋において、濾過内袋は多孔フィルム、逆浸透膜、濾紙又は不織布等の強度が有り透水性のある濾過膜であり、縫製や圧着や融着などにより製作され、外袋に内装することでフィルタリング機能を付与できることを特徴とする濾過内袋。 The filtration inner bag of the coagulated bottom mud bagging device according to claim 8, wherein the filtration inner bag is a strong and water permeable filtration membrane such as a porous film, a reverse osmosis membrane, a filter paper or a nonwoven fabric, and is sewn, pressed or melted. A filtering inner bag, which is manufactured by wearing or the like and can be provided with a filtering function by being installed in an outer bag.
  10. 請求項2記載の底土吸引浚渫装置の格子付底泥吸引ヘッドにおいて、格子には既製のグレチングを加工したものを使用することで、空缶等の異物や大型の礫の吸引を防止するだけでなく、粘性度の高い底質にヘッドを貫入させる時の抵抗を大きくし底質表面をバックホーオペレーターが確認し易くするとともに、ヘッド進行方向の後方からの泥水の侵入を抑え含泥率を上げる機能を付与できることを特徴とする格子付底泥吸引ヘッド。 In the bottom mud suction head of the bottom soil suction dredge device according to claim 2, by using a ready-made gretching for the lattice, it is only necessary to prevent suction of foreign matter such as empty cans and large gravel. In addition, the resistance when penetrating the head into the sediment with high viscosity is increased, making it easier for the backhoe operator to check the surface of the sediment and increasing the mud content by suppressing the intrusion of muddy water from the rear of the head traveling direction. A bottom mud suction head with a grid, characterized in that
  11. 請求項2記載の底土吸引浚渫装置の破砕機付水中ポンプにおいて、グレチング格子を通過してきた木の葉や草本等の有機物を水中ポンプの破砕機で粉砕し細分化することで、砂礫分離サイクロンを通過させるとともに凝集剤によって凝集させ確実に沈降させることを目的とする破砕機付水中ポンプ。 3. A submersible pump with a crusher for a bottom soil suction dredge device according to claim 2, wherein organic substances such as leaves and grass that have passed through the gretching grid are pulverized and subdivided by a crusher of the submersible pump, thereby passing the gravel separation cyclone. A submersible pump with a crusher that aims to agglomerate with a coagulant and settle reliably.
  12. 請求項2記載の底土吸引浚渫装置の当該装置操作用のバックホーにおいて、GPSの位置情報および単数または複数の超音波測深器の水深情報によりバックホーオペレーターが浚渫範囲と浚渫深さを管理しながら薄層浚渫することを特徴とする底泥浚渫工法。 3. A backhoe for operating the bottom soil suction dredge device according to claim 2, wherein the backhoe operator manages the dredging range and dredging depth based on GPS position information and water depth information of one or more ultrasonic sounding instruments. A bottom mud dredging method characterized by dredging.
  13. 請求項1に記載の底泥浚渫凝集処理システムは、普通トラックに積載可能な寸法形状で製作された軽量かつコンパクトな構造であり、浚渫対象が山間部の狭隘な場所や民家の密集した居住区であっても、機材設置や構築および底泥浚渫作業や凝集処理作業が容易としたことを特徴とする底泥浚渫凝集処理工法。 The bottom mud agglomeration processing system according to claim 1 is a lightweight and compact structure manufactured in a size and shape that can be loaded on a normal truck, and the target of dredging is a confined area of a mountainous area or a densely populated residential area. Even so, the bottom mud agglomeration treatment method is characterized by the ease of equipment installation and construction, and the bottom mud work and agglomeration work.
  14. 請求項4と請求項5に記載の粉体凝集剤は高機能無機質疎水性凝集剤であり、請求項4と請求項5記載の凝集剤供給装置と組合せて使用することにより、疎水性と、瞬間凝集性と、結合粒子(以下、凝集体)同士の再凝集性という特徴および機能を最大に活用することで短時間に大量の底泥の固液分離処理を行うことを特徴とする底泥浚渫凝集処理工法。 The powder flocculant according to claim 4 and claim 5 is a highly functional inorganic hydrophobic flocculant, and when used in combination with the flocculant supply apparatus according to claim 4 and claim 5, Bottom mud characterized by solid-liquid separation processing of a large amount of bottom mud in a short time by making full use of the features and functions of instantaneous cohesion and re-agglomeration between bonded particles (hereinafter agglomerates)浚 渫 Aggregation processing method.
  15. 請求項7と請求項8記載の収容バックに袋詰した凝集体を運搬に支障ない飽和含水率以下まで自然濾過することにより、収容バックごと容易に搬出できることを特徴とする底泥浚渫凝集処理工法。 A bottom mud flocculation treatment method characterized in that the agglomerates packed in the storage bag according to claim 7 and claim 8 can be easily carried out together with the storage bag by natural filtration to a saturated water content or less that does not hinder transportation. .
  16. 請求項1記載の底泥浚渫凝集処理システムにおいて、底泥吸引浚渫装置の薄層吸引によって浚渫土量を抑え、砂礫分離洗浄装置で砂礫を分離し湖底へ戻すことで凝集土量を抑え、疎水性凝集剤添加と底泥凝集沈降分離装置にて水分を分離し、収容バックにて圧密濾過ないし自然脱水により最終処分底泥量を減容化することを特徴とする底泥浚渫凝集処理工法。




















    2. The bottom mud agglomeration treatment system according to claim 1, wherein the amount of dredged soil is suppressed by thin layer suction of the bottom mud suction dredge device, and the amount of agglomerated soil is suppressed by separating the gravel with a gravel separation cleaning device and returning it to the lake bottom. The bottom mud flocculation treatment method is characterized in that water is separated by adding a coagulant coagulant and bottom mud coagulation sedimentation separator, and the volume of the final disposal bottom mud is reduced by compaction filtration or natural dehydration in the storage bag.




















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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016017772A (en) * 2014-07-04 2016-02-01 小柳建設株式会社 Method of processing radioactive material on water bottom
JP2016023943A (en) * 2014-07-16 2016-02-08 小柳建設株式会社 Processing method of radioactive material
JP2016050880A (en) * 2014-09-01 2016-04-11 昌彦 辻田 Method for decontaminating radioactive material in pond and the like and decontamination apparatus using the same
WO2018116503A1 (en) * 2016-12-21 2018-06-28 岩夫 松原 Dredging inlet structure
CN108689582A (en) * 2018-08-24 2018-10-23 四川天宜石油化工工程有限公司 Sludge dewatering treatment device and processing method
CN108755803A (en) * 2018-06-14 2018-11-06 胡学文 A kind of hydraulic engineering channel cleanout device
CN109505282A (en) * 2018-11-05 2019-03-22 河海大学 A kind of sand discharge apparatus for mutually presenting adaptation system based on turbidity and temperature
CN111892278A (en) * 2020-08-12 2020-11-06 宁波市路棠电子科技有限公司 Solidification treatment device capable of achieving quantitative sludge single-time ingestion and stirring

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016017772A (en) * 2014-07-04 2016-02-01 小柳建設株式会社 Method of processing radioactive material on water bottom
JP2016023943A (en) * 2014-07-16 2016-02-08 小柳建設株式会社 Processing method of radioactive material
JP2016050880A (en) * 2014-09-01 2016-04-11 昌彦 辻田 Method for decontaminating radioactive material in pond and the like and decontamination apparatus using the same
WO2018116503A1 (en) * 2016-12-21 2018-06-28 岩夫 松原 Dredging inlet structure
CN108755803A (en) * 2018-06-14 2018-11-06 胡学文 A kind of hydraulic engineering channel cleanout device
CN108689582A (en) * 2018-08-24 2018-10-23 四川天宜石油化工工程有限公司 Sludge dewatering treatment device and processing method
CN109505282A (en) * 2018-11-05 2019-03-22 河海大学 A kind of sand discharge apparatus for mutually presenting adaptation system based on turbidity and temperature
CN109505282B (en) * 2018-11-05 2020-12-11 河海大学 Sediment outflow device based on turbidity and temperature mutual feedback adaptation system
CN111892278A (en) * 2020-08-12 2020-11-06 宁波市路棠电子科技有限公司 Solidification treatment device capable of achieving quantitative sludge single-time ingestion and stirring

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