JPH0960034A - Thin layer dredging and discharging device - Google Patents

Thin layer dredging and discharging device

Info

Publication number
JPH0960034A
JPH0960034A JP21776195A JP21776195A JPH0960034A JP H0960034 A JPH0960034 A JP H0960034A JP 21776195 A JP21776195 A JP 21776195A JP 21776195 A JP21776195 A JP 21776195A JP H0960034 A JPH0960034 A JP H0960034A
Authority
JP
Japan
Prior art keywords
dredging
pipe
soft mud
water
hood
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP21776195A
Other languages
Japanese (ja)
Inventor
Kiyoshi Kuioka
潔 杭岡
Yoshio Kawahara
義夫 川原
Akio Matsunaka
昭夫 松中
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ube Corp
Original Assignee
Ube Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ube Industries Ltd filed Critical Ube Industries Ltd
Priority to JP21776195A priority Critical patent/JPH0960034A/en
Publication of JPH0960034A publication Critical patent/JPH0960034A/en
Pending legal-status Critical Current

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  • Treatment Of Sludge (AREA)

Abstract

PROBLEM TO BE SOLVED: To improve dredging work efficiency by composing a thin layer dredging and discharging device of a dredging device, a lifting device which raises and lowers the dredging device which is loaded on a crawler which can freely traverse on the dredger and a discharging device which pneumatically conveys the dredged matter. SOLUTION: A dredging device 40 is lifted down to the bottom of the water while operating a lifting device 20, and a crawler is moved while operating a suction pump 42 and mixer 52. In the next step, the soft mud in the range covered by a water stop hood 50 is mixed to be liquidized by the mixer 52 and sucked in the suction pump 42 through a flexible pipe 46 and suction pipe 44, being discharged from a discharge pipe 62. In the next step, the soft mud which came out from the discharge pipe 62 is applied pressure by compressed air, being pneumatically plug carried through a discharge pipe 70. Since the moisture content of the soft mud covered by the water stop hood 50 is lowest at the beginning of take-in and then gradually rises, causing an undesirable matter, a opening closing valve 64 is intermittently operated so as to be opened only in the case of high concentration in the soft mud for discharge, achieving efficient dredging and conveyance at a high concentration using water as little as possible.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は、港湾、湖沼、河川
などの水底に堆積する軟泥を浚渫する薄層浚渫排送装置
に係り、特に、余水をなるべく取り込むことなく、水底
の薄層の軟泥だけを効率よく浚渫して遠隔の目的地に連
続的に大量移送できる薄層浚渫排送装置に関するもので
ある。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thin-layer dredging and discharging device for dredging soft mud accumulated on the bottom of water such as a harbor, lake, river, etc. The present invention relates to a thin-layer dredging / discharging device capable of efficiently dredging only soft mud and continuously transferring a large amount to a remote destination.

【0002】[0002]

【従来の技術】従来の浚渫装置としてポンプ式のものが
ある。このポンプ式浚渫装置は、台船や浚渫船などに大
容量のポンプを設置し、該ポンプから海底や湖底などの
水底にホースを延ばし、水底に堆積した軟泥を水ととも
に吸い上げるようにしている。また、別の浚渫装置とし
て、グラブバケットを水底で開閉して掬い取るグラブバ
ケット式浚渫装置や最近開発された竪型スクリュコンベ
ヤ式の浚渫装置も使用される。そして、このようにして
浚渫された軟泥は、主として土運船と呼ばれる運搬船に
て埋立地に運ばれる。埋立地では、固化剤や凝集剤が添
加されて固化される。
2. Description of the Related Art As a conventional dredging apparatus, there is a pump type. In this pump-type dredging apparatus, a large-capacity pump is installed on a barge, a dredger, or the like, a hose is extended from the pump to the bottom of the sea or lake, and the soft mud deposited on the bottom is sucked up together with the water. Further, as another dredging device, a grab bucket type dredging device for opening and closing a grab bucket at the bottom of the water to scoop and a recently developed vertical screw conveyor type dredging device are also used. Then, the soft mud thus dredged is mainly carried to a landfill by a carrier ship called an earth carrier. At the landfill site, a solidifying agent and a coagulant are added to solidify.

【0003】[0003]

【発明が解決しようとする課題】しかしながら、上述し
た浚渫装置のうち、ポンプ式浚渫装置においては、軟泥
と同時に吸い上げられる水の量があまりにも多く余水の
処理後でないと固化剤を混合することが出来ず、余水処
理に多大な費用を要すると言う欠点があった。また、グ
ラブバッケット式浚渫装置は、浚渫区域の海洋を汚染す
るという難点があり、竪型スクリュコンベヤ式浚渫装置
は、厚さの大きい軟泥層に対して、水をできるだけ少な
くして軟泥のみを高濃度で大量に連続的に浚渫できる長
所があるものの、軟泥層の厚さが小さい場合に対して
は、随伴する水の量が多くなり薄層浚渫には向いていな
いという不都合があった。
However, among the above-mentioned dredging devices, in the pump-type dredging device, the amount of water sucked up simultaneously with the soft mud is too large and the solidifying agent is mixed only after the treatment of residual water. However, there is a drawback that the wastewater treatment requires a great deal of cost. In addition, the grab-bucket type dredging device has a drawback that it pollutes the ocean in the dredging area, and the vertical screw conveyor type dredging device uses only a small amount of water for the thick soft mud layer to increase the amount of soft mud. Although it has the advantage of being able to continuously dredge a large amount at a concentration, it has the disadvantage that it is not suitable for thin-layer dredging when the thickness of the soft mud layer is small and the amount of water that accompanies it is large.

【0004】[0004]

【課題を解決するための手段】このような課題を解決し
て、薄層の軟泥層に対しても随伴する水を極力少なくし
て軟泥のみを高濃度に連続的に、かつ、遠隔の目的地ま
で安定して搬送するために、本発明については、第1の
発明では、浚渫船上に設備された浚渫装置と、該浚渫装
置を搭載し該浚渫船上を横行移動自在なクローラに積載
され該浚渫装置を昇降させる昇降装置と、該浚渫装置に
接続され浚渫物を空気搬送する排送装置とから形成さ
れ、該浚渫装置は、筒状の吸入管と該吸入管の上端に接
続された吸入ポンプと、該吸入管の下端部に傾動自在に
配設された円形蓋状の止水フードと、該吸入管途中に取
り付けられた該止水フードの傾動用液圧シリンダと、該
止水フードの内部に格納され下方に向けて複数個の攪拌
棒を植設され竪軸回りに旋回自在な攪拌装置ならびに該
攪拌装置の旋回駆動用油圧モータとからなり、該排送装
置は、前記浚渫装置の吸入ポンプの吐出口に接続された
排送管と該排送管途中に設けられた開閉弁と圧縮空気の
エジェクタとを備えてなる薄層浚渫排送装置とした。そ
して、第2の発明では、第1の発明の昇降装置を、バッ
クホーで形成した。また、第3の発明では、第1や第2
の発明の止水フードを、中央部で逆への字状に屈曲して
形成した。さらに、第4の発明では、上記の発明におい
て、吸入管の吸入口と止水フードをフレキシブル管で連
結するとともに、該吸入口に異物混入防止用のバースク
リーンを備えてなる構成とした。さらに、第5の発明で
は、排送管途中にガンマ線密度計または透明モニタリン
グ管を設けた構成とした。
[Means for Solving the Problems] By solving such a problem, the water accompanying the thin soft mud layer is reduced as much as possible, and only the soft mud is highly concentrated continuously and at a remote purpose. In order to stably convey to the ground, in the first invention, in the first invention, the dredging device installed on the dredging ship and the crawler that is equipped with the dredging device and is traversable on the dredging ship are loaded. The lifting device for raising and lowering the dredging device, and the discharging device connected to the dredging device for pneumatically transporting the dredged material, the dredging device being a suction pipe connected to a cylindrical suction pipe and an upper end of the suction pipe. A pump, a circular lid-shaped water stop hood that is tiltably disposed at the lower end of the suction pipe, a tilting hydraulic cylinder of the water stop hood mounted midway in the suction pipe, and the water stop hood. It is housed inside and is equipped with a plurality of stirring rods facing downward. And a discharge motor connected to the discharge port of the suction pump of the dredging device and provided in the middle of the discharge pipe. The thin-layer dredging and discharging device is provided with the on-off valve and the ejector of compressed air. And in 2nd invention, the raising / lowering apparatus of 1st invention was formed in the backhoe. Further, in the third invention, the first and second
The water-proof hood of the invention is formed by bending in a reverse shape at the central portion. Further, according to a fourth aspect of the present invention, in the above invention, the suction port of the suction pipe and the water blocking hood are connected by a flexible pipe, and the suction port is provided with a bar screen for preventing foreign matter from entering. Further, in the fifth invention, a gamma ray densitometer or a transparent monitoring tube is provided in the middle of the discharge tube.

【0005】[0005]

【発明の実施の形態】本発明においては、浚渫現場に停
泊した浚渫船から浚渫装置を昇降装置で水底の薄層軟泥
層に降下させ、止水フードを薄層軟泥層に被覆して攪拌
装置を駆動する。攪拌装置の攪拌棒によって攪拌・流動
化された軟泥は吸入ポンプの回転による吸引力により吸
入管方向に移動し、吸入管に吸い上げられ、吐出管を出
て排送装置の排送管内を流れ、エジェクタより注入され
る圧縮空気により排送管内をプラグ輸送され、遠隔の目
的地まで移送される。以上のようにして、浚渫船上を走
行装置で順次移動して浚渫作業を繰り返して一定の浚渫
作業領域を作業が完了すると、浚渫船を次の作業現場に
移動して、再び同様な作業を繰り返す。
BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, a dredging device is lowered from a dredging ship moored at a dredging site to a thin-layer soft mud layer at the bottom of the water by an elevating device, and a waterproofing hood is covered with the thin-layer soft mud layer to provide a stirring device. To drive. The soft mud stirred and fluidized by the stirring rod of the stirring device moves toward the suction pipe by the suction force due to the rotation of the suction pump, is sucked up by the suction pipe, exits the discharge pipe, and flows in the discharge pipe of the discharge device. The compressed air injected from the ejector transports the plug inside the discharge pipe and transfers it to a remote destination. As described above, when the traveling equipment is sequentially moved on the dredger to repeat the dredging work and the work in the certain dredging work area is completed, the dredger is moved to the next work site and the same work is repeated again.

【0006】[0006]

【実施例】以下図面に基づいて本発明の実施例の詳細に
ついて説明する。図1〜図4は、本発明の実施例に係
り、図1は薄層浚渫排送装置の全体側面図、図2は薄層
浚渫排送装置の要部拡大側面図、図3は薄層浚渫排送装
置の要部拡大正面図、図4は排送管途中の開閉バルブの
開閉要領を説明する説明図である。
Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 4 relate to an embodiment of the present invention, FIG. 1 is an overall side view of a thin layer dredging and discharging device, FIG. 2 is an enlarged side view of a main portion of the thin layer dredging and discharging device, and FIG. FIG. 4 is an enlarged front view of the main part of the dredging and discharging device, and FIG. 4 is an explanatory diagram for explaining the opening and closing procedure of the opening and closing valve in the middle of the discharging pipe.

【0007】薄層浚渫排送装置100は、浚渫船10上
に移動自在に搭載された昇降装置20と、昇降装置20
の先端に連結され海底の地底B上に堆積した軟泥Aを採
取する浚渫装置40と、浚渫された軟泥を遠隔の目的地
まで移送する排送装置60とから構成され、具体的に
は、図1に示すように、昇降装置20はクローラ20a
に旋回可能に取り付けられたバックホー20Aが採用さ
れる。昇降装置20であるバックホー20Aの先端に
は、浚渫装置40が取り付けられ、浚渫装置40で採取
された軟泥は後続する排送装置60で長距離輸送され
る。
The thin-layer dredging and discharging device 100 includes an elevating device 20 movably mounted on the dredger 10 and an elevating device 20.
It is composed of a dredging device 40 that is connected to the tip of the seabed and collects the sludge A deposited on the seabed B, and a discharge device 60 that transfers the dredged sludge to a remote destination. 1, the lifting device 20 includes a crawler 20a.
A backhoe 20A that is rotatably attached to the backhoe is used. A dredging device 40 is attached to the tip of the backhoe 20A that is the elevating device 20, and the soft mud collected by the dredging device 40 is transported over a long distance by a subsequent discharging device 60.

【0008】浚渫装置40は、図2や図3に示すよう
に、ボディ41に立設されたブラッケット41aに昇降
装置20(バックホー20A)と油圧シリンダ20bが
ピン接合され、ボディ41の下方に傾動シリンダ50A
の作動により傾動自在な止水フード50が配設される。
止水フード50は、平面視は円形で側面視は逆への字状
に屈曲されており、その下方内部には、水平円板に下向
きに複数個の攪拌棒52aを取り付けた攪拌装置52が
攪拌モータ(油圧モータ)54により竪軸まわりに回転
自在に配設されている。一方、ボディ41の上方には、
吸入ポンプ42および油圧モータ42aが固設されると
ともに、吸入管44と止水フード50の天板との間をフ
レキシブル管46で接続され、さらにフレキシブル管の
直前には異物排除用のバースクリーン56が設置され
る。
As shown in FIG. 2 and FIG. 3, the dredging device 40 has a bracket 41a erected on a body 41, and a lifting device 20 (backhoe 20A) and a hydraulic cylinder 20b are pin-joined to the body 41 so that the body 41 is tilted downward. Cylinder 50A
The water stop hood 50 which can be tilted by the operation of is installed.
The water-stop hood 50 is bent in a circular shape in a plan view and in an inverted V shape in a side view, and a stirring device 52 in which a plurality of stirring rods 52a are attached downward to a horizontal disc is provided in the lower inside thereof. A stirring motor (hydraulic motor) 54 is rotatably arranged around the vertical axis. On the other hand, above the body 41,
The suction pump 42 and the hydraulic motor 42a are fixedly installed, and the suction pipe 44 and the top plate of the water blocking hood 50 are connected by a flexible pipe 46. Further, immediately before the flexible pipe, a bar screen 56 for removing foreign matter is provided. Is installed.

【0009】排送装置60は、図2に示すように、吸入
ポンプ42の吐出側に接続され、吐出管62に開閉バル
ブ64、逆止弁66を経由して連結される排送管70に
圧縮空気を注入するエジェクタ68を配設し、浚渫され
た軟泥をプラグ輸送により遠距離の目的地まで空気搬送
するものである。
As shown in FIG. 2, the discharge device 60 is connected to a discharge side of the suction pump 42 and is connected to a discharge pipe 62 via a discharge valve 70 and a check valve 66. An ejector 68 for injecting compressed air is provided, and the dredged soft mud is transported by air to a distant destination by plug transportation.

【0010】次に、以上のように構成された本発明の作
動について説明する。まず、浚渫船10を所望の浚渫現
場に停泊し、昇降装置20を操作して浚渫装置40を水
底に静かに下降させる。その後、クローラ20aの進行
方向に合わせて止水フード50を後方側を水平に、前方
側を斜め上になるよう傾動シリンダ50Aで調節し保持
してから、吸入ポンプ42や攪拌装置52を稼働しつつ
クローラ20aを移動する。止水フード50で被覆され
た範囲の軟泥は、止水フード50の内部で回転する攪拌
装置52により攪拌・流動化され、止水フード50の一
端にあるフレキシブル管46、吸入管44を経由して吸
入ポンプ42に吸い込まれ、吐出管62より排出され
る。吸入される軟泥に随伴した異物(木材、鉄片、藻
類、プラスチック容器等)は、バースクリーン56を通
過出来ず排除される。吐出管62を出た軟泥は、排送管
70で圧縮空気により加圧されてプラグ輸送され、浚渫
船10から遠方の目的地まで搬送される。クローラ20
aが浚渫船10で反転して反対方向に移動するときに
は、止水フード50の傾きも反転し、同様な作業を繰り
返す。本発明では、軟泥を高濃度で(随伴する水をなる
べく少なくして軟泥のみを)輸送するため、例えば、図
4に示す工程で作業を進める。すなわち、止水フード5
0内の軟泥は、取り込み始めが最も含水率が少なく、取
り込みが進行するにしたがって、次第に含水率が上昇し
て好ましくないので、開閉バルブ64を間欠運転にし、
図4に示すように、浚渫軟泥の濃度の高い場合のみ開閉
バルブ64を開いて軟泥を搬送する。そして、軟泥の含
水率がある一定値を越えると、開閉バルブ64を閉止
し、軟泥の取り込みを停止する。開閉バルブ64の開閉
サイクルは、浚渫軟泥の土質、クローラ20aの移動速
度やスイング速度を考慮して決定するが、たとえば、開
5秒、閉4秒程度とする。浚渫中の軟泥の状態を知るた
めに、排送管70中にガンマ線密度計を設け、密度から
含水率を算出したり、排送管途中を透明管として目視に
よりモニタリングできるようにすることが望ましい。稼
業中吸入ポンプ42は、連続運転のままとしておく。そ
の理由は、高頻度で運転、停止を繰り返すとポンプ駆動
用のモータ寿命が低下するからである。なお、逆止弁6
6は圧縮空気の逆流を防止するためのものである。1か
所の作業が終わると、浚渫船10を次の作業箇所に移動
し、以上同様の作業を継続する。
Next, the operation of the present invention constructed as above will be described. First, the dredging vessel 10 is anchored at a desired dredging site, and the lifting device 20 is operated to gently lower the dredging device 40 to the bottom of the water. After that, the water stop hood 50 is adjusted horizontally by the tilting cylinder 50A so that the rear side is horizontal and the front side is obliquely upward according to the traveling direction of the crawler 20a, and then the suction pump 42 and the stirring device 52 are operated. While moving the crawler 20a. The soft mud in the range covered with the waterproof hood 50 is stirred and fluidized by the stirring device 52 rotating inside the waterproof hood 50, and passes through the flexible pipe 46 and the suction pipe 44 at one end of the waterproof hood 50. Is sucked into the suction pump 42 and discharged from the discharge pipe 62. Foreign substances (wood, iron pieces, algae, plastic containers, etc.) that accompany the inhaled soft mud cannot pass through the bar screen 56 and are removed. The soft mud discharged from the discharge pipe 62 is pressurized by compressed air in the discharge pipe 70 and is transported by plug, and is transported from the dredger 10 to a distant destination. Crawler 20
When a is reversed by the dredger 10 and moves in the opposite direction, the inclination of the water stop hood 50 is also reversed and the same work is repeated. In the present invention, since the soft mud is transported at a high concentration (only the soft mud is reduced with the accompanying water as small as possible), the work is carried out, for example, in the step shown in FIG. That is, the still water hood 5
The soft mud in 0 has the smallest water content at the beginning of intake, and the water content gradually increases as the intake progresses, which is not preferable. Therefore, the open / close valve 64 is set to the intermittent operation.
As shown in FIG. 4, the open / close valve 64 is opened to convey the soft mud only when the concentration of the dredging soft mud is high. When the water content of the soft mud exceeds a certain value, the open / close valve 64 is closed and the intake of the soft mud is stopped. The open / close cycle of the open / close valve 64 is determined in consideration of the soil properties of the dredging soft mud, the moving speed and the swing speed of the crawler 20a, and is, for example, about 5 seconds open and 4 seconds closed. In order to know the state of the soft mud in the dredging, it is desirable to provide a gamma ray densitometer in the discharge pipe 70 to calculate the water content from the density or to visually monitor the middle of the discharge pipe as a transparent pipe. .. The suction pump 42 is kept in continuous operation during business. The reason is that if the operation and the stop are repeated at a high frequency, the life of the motor for driving the pump is shortened. The check valve 6
Reference numeral 6 is for preventing backflow of compressed air. When the work in one place is completed, the dredger 10 is moved to the next work place, and the same work is continued.

【0011】以上述べたように、本発明においては、従
来技術を同じポンプ浚渫を行ないながら、従来のポンプ
浚渫の欠点である含水率の高い軟泥の浚渫でなく、随伴
する水の少ない高濃度の軟泥浚渫を達成した。
As described above, in the present invention, while performing the same dredging as the conventional technique, the dredging of the soft mud having a high water content, which is a drawback of the conventional dredging of the pump, does not occur, but the high concentration of water with less entrainment is required. Achieved soft mud dredging.

【0012】[0012]

【発明の効果】以上説明したように、本発明において
は、下記の優れた作用効果がある。 随伴する水の少ない、高濃度の軟泥を連続的に大量
に、かつ、遠方の目的地まで安定して搬送できる。 止水フードを屈強形とし傾動自在としたので水の進
入を防止し、高濃度の軟泥だけを取り込むことができる
とともに、止水フード内部に攪拌装置を設けたので、あ
る程度硬い軟泥でも流動化できて、円滑に取り込みでき
る。 開閉バルブの閉止時、エジェクタ以降の軟泥は圧縮
空気の注入により圧送を済ませており、開閉バルブを再
び開放して軟泥を供給しても、新たな取り込み軟泥を支
障なく送給でき、管内閉塞を起すことはない。
As described above, the present invention has the following excellent functions and effects. High-concentration soft mud with little accompanying water can be continuously transported in large quantities and stably to a distant destination. The water-proof hood has a strong shape and can be tilted to prevent water from entering, allowing only high-concentration soft mud to be taken in, and a stirrer inside the water-proof hood allows fluidization to some extent even for soft mud. And can be taken in smoothly. When the on-off valve is closed, the soft mud after the ejector has been pressure-fed by injecting compressed air.Even if the on-off valve is opened again to supply the soft mud, the new intake soft mud can be fed without hindrance and blockage in the pipe. It won't happen.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の実施例に係る薄層浚渫排送装置の全体
側面図である。
FIG. 1 is an overall side view of a thin layer dredging and discharging device according to an embodiment of the present invention.

【図2】本発明の実施例に係る薄層浚渫排送装置の要部
拡大側面図である。
FIG. 2 is an enlarged side view of a main part of a thin layer dredging and discharging device according to an embodiment of the present invention.

【図3】本発明の実施例に係る薄層浚渫排送装置の要部
拡大正面図である。
FIG. 3 is an enlarged front view of the main parts of the thin-layer dredging and discharging device according to the embodiment of the present invention.

【図4】本発明の実施例に係る薄層浚渫排送装置の排送
管途中の開閉バルブの開閉要領を説明する説明図であ
る。
FIG. 4 is an explanatory diagram illustrating an opening / closing procedure of an opening / closing valve in the middle of a discharge pipe of a thin layer dredging / discharging device according to an embodiment of the present invention.

【符号の説明】[Explanation of symbols]

10 浚渫船 20 昇降装置(20A バックホー) 20a クローラ 20b 油圧シリンダ 40 浚渫装置 41 ボディ 41a ブラケット 42 吸入ポンプ 42a 油圧モータ 44 吸入管 46 フレキシブル管 50 止水フード 50A 傾動シリンダ 52 攪拌装置 52a 攪拌棒 54 攪拌モータ(油圧モータ) 56 バースクリーン 60 排送装置 62 吐出管 64 開閉バルブ 66 逆止弁 68 エジェクタ 70 排送管 100 薄層浚渫排送装置 A 軟泥層 B 地底 10 Dredging Ship 20 Lifting Device (20A Backhoe) 20a Crawler 20b Hydraulic Cylinder 40 Dredging Device 41 Body 41a Bracket 42 Suction Pump 42a Hydraulic Motor 44 Suction Pipe 46 Flexible Pipe 50 Water Stop Hood 50A Tilting Cylinder 52 Stirrer 52a Stirrer (54a Stirrer Hydraulic motor) 56 Bar screen 60 Discharge device 62 Discharge pipe 64 Open / close valve 66 Check valve 68 Ejector 70 Discharge pipe 100 Thin-layer dredging discharge device A Soft mud layer B Ground floor

Claims (5)

【特許請求の範囲】[Claims] 【請求項1】 港湾、湖沼、河川などの水底に堆積する
軟泥を浚渫する薄層浚渫排送装置であって、 浚渫船上に設備された浚渫装置と、該浚渫装置を搭載し
該浚渫船上を横行移動自在なクローラに積載され該浚渫
装置を昇降させる昇降装置と、該浚渫装置に接続され浚
渫物を空気搬送する排送装置とから形成され、 該浚渫装置は、筒状の吸入管と該吸入管の上端に接続さ
れた吸入ポンプと、該吸入管の下端部に傾動自在に配設
された円形蓋状の止水フードと、該吸入管途中に取り付
けられた該止水フードの傾動用液圧シリンダと、該止水
フードの内部に格納され下方に向けて複数個の攪拌棒を
植設され竪軸回りに旋回自在な攪拌装置ならびに該攪拌
装置の旋回駆動用油圧モータとからなり、 該排送装置は、前記浚渫装置の吸入ポンプの吐出口に接
続された排送管と該排送管途中に設けられた開閉弁と圧
縮空気のエジェクタとを備えてなる薄層浚渫排送装置。
1. A thin-layer dredging and discharging device for dredging soft mud accumulated on the bottom of a harbor, lake, river, etc., which comprises a dredging device installed on a dredging ship and the dredging device mounted on the dredging ship. The lifting and lowering device is mounted on a crawler that can be moved laterally and that moves up and down the dredging device, and a discharge device that is connected to the dredging device and that conveys the dredged material by air. The dredging device includes a cylindrical suction pipe and A suction pump connected to the upper end of the suction pipe, a circular lid-shaped water stop hood tiltably arranged at the lower end of the suction pipe, and a tilting of the water stop hood mounted midway in the suction pipe. A hydraulic cylinder, and an agitator that is housed inside the water shut-off hood and has a plurality of agitating rods planted downward and can be swiveled around a vertical axis; and a swivel drive hydraulic motor for the agitating device. The discharging device is a discharge port of the suction pump of the dredging device. A thin-layer dredging and discharging device comprising a discharge pipe connected to the discharge pipe, an on-off valve provided in the middle of the discharge pipe, and an ejector of compressed air.
【請求項2】 昇降装置を、バックホーで形成してなる
請求項1記載の薄層浚渫排送装置。
2. The thin layer dredging and discharging device according to claim 1, wherein the lifting device is formed by a backhoe.
【請求項3】 止水フードは、中央部で逆への字状に屈
曲して形成された請求項1記載または請求項2記載の薄
層浚渫排送装置。
3. The thin layer dredging / discharging device according to claim 1 or 2, wherein the water blocking hood is formed by bending in a reverse shape at the central portion.
【請求項4】 吸入管の吸入口と止水フードをフレキシ
ブル管で連結するとともに、該吸入口に異物混入防止用
のバースクリーンを備えてなる請求項1記載ないし請求
項3記載の薄層浚渫排送装置。
4. The thin layer dredge according to claim 1, wherein the suction port of the suction pipe and the water blocking hood are connected by a flexible pipe, and the suction port is provided with a bar screen for preventing foreign matter from entering. Ejection device.
【請求項5】 排送管途中にガンマ線密度計または透明
モニタリング管を設けた請求項1記載ないし請求項4記
載の薄層浚渫排送装置。
5. The thin layer dredging and discharging apparatus according to claim 1, wherein a gamma ray density meter or a transparent monitoring tube is provided in the middle of the discharging tube.
JP21776195A 1995-08-25 1995-08-25 Thin layer dredging and discharging device Pending JPH0960034A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21776195A JPH0960034A (en) 1995-08-25 1995-08-25 Thin layer dredging and discharging device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21776195A JPH0960034A (en) 1995-08-25 1995-08-25 Thin layer dredging and discharging device

Publications (1)

Publication Number Publication Date
JPH0960034A true JPH0960034A (en) 1997-03-04

Family

ID=16709327

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21776195A Pending JPH0960034A (en) 1995-08-25 1995-08-25 Thin layer dredging and discharging device

Country Status (1)

Country Link
JP (1) JPH0960034A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012026190A (en) * 2010-07-26 2012-02-09 Penta Ocean Construction Co Ltd Underwater work method near existing structure and device for underwater work
CN112253473A (en) * 2020-10-30 2021-01-22 宁波锦瑄环保科技有限公司 Improved sewage pump
CN113202157A (en) * 2021-04-22 2021-08-03 陈伟 Dredging head with separation function for hydraulic engineering and dredging method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012026190A (en) * 2010-07-26 2012-02-09 Penta Ocean Construction Co Ltd Underwater work method near existing structure and device for underwater work
CN112253473A (en) * 2020-10-30 2021-01-22 宁波锦瑄环保科技有限公司 Improved sewage pump
CN113202157A (en) * 2021-04-22 2021-08-03 陈伟 Dredging head with separation function for hydraulic engineering and dredging method thereof

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