JP4896750B2 - Sediment separation and removal head - Google Patents
Sediment separation and removal head Download PDFInfo
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- JP4896750B2 JP4896750B2 JP2007011045A JP2007011045A JP4896750B2 JP 4896750 B2 JP4896750 B2 JP 4896750B2 JP 2007011045 A JP2007011045 A JP 2007011045A JP 2007011045 A JP2007011045 A JP 2007011045A JP 4896750 B2 JP4896750 B2 JP 4896750B2
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- 238000000926 separation method Methods 0.000 title claims description 31
- 239000013049 sediment Substances 0.000 title description 4
- 239000010419 fine particle Substances 0.000 claims description 13
- 238000009792 diffusion process Methods 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 238000009412 basement excavation Methods 0.000 description 8
- 238000003756 stirring Methods 0.000 description 6
- 239000004576 sand Substances 0.000 description 5
- 230000001629 suppression Effects 0.000 description 5
- 239000002245 particle Substances 0.000 description 3
- 239000005416 organic matter Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000009360 aquaculture Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- -1 silt Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Treatment Of Sludge (AREA)
Description
本発明は、堆積物分離除去ヘッドに関し、詳細には、海、湖沼、川、養殖水槽等の水底に堆積するシルト・粘土・または有機物等の細粒分を、水中で選択的に分離除去する装置に用いる堆積物分離除去ヘッドに関する。 The present invention relates to a sediment separation / removal head, and in particular, selectively separates and removes fine particles such as silt, clay, or organic matter deposited on the bottom of the sea, lakes, rivers, aquaculture tanks, etc. in water. The present invention relates to a deposit separation and removal head used in an apparatus.
水底に堆積するヘドロ等の細粒分の堆積物を分離除去するための技術として、特許文献１には、浚渫する底泥を囲う容器と、容器内の底泥を分散させる攪拌機と、前記容器内で分別された底質分を回収する回収手段を備えた浚渫装置が記載されている。
この特許文献１に記載の装置は、段落［００１７］に「攪拌機３を作動させて、容器２内の底泥を分散させて泥水とした後、攪拌機３を停止し、静置する。この場合、底泥や水底の状態によっては、攪拌機３の攪拌強度を減衰後攪拌停止して分散体を静止させる」と記載されているように、攪拌後、一度、静置させることで細粒分を分離するものである。
As a technique for separating and removing deposits of fine particles such as sludge accumulated on the bottom of the water, Patent Document 1 discloses a container that encloses the bottom mud, a stirrer that disperses the bottom mud in the container, and the container The dredging apparatus provided with the collection | recovery means which collect | recovers the bottom sediment fractionated in the inside is described.
The apparatus described in Patent Document 1 is described in paragraph [0017]: “After the stirrer 3 is activated to disperse the bottom mud in the container 2 to make muddy water, the stirrer 3 is stopped and left standing. Depending on the state of the bottom mud and the bottom of the water, the stirring intensity of the stirrer 3 is attenuated and the stirring is stopped and the dispersion is stopped. To separate.
また、特許文献２には、水底を走行する自走車と、前記自走車に搭載されて下部の開口部が前記水底に対向するフードと、前記フード内の下部に設けられていて該フード内で前記水底の堆積物を舞い上がらせるジェットノズルと、前記フード内の汚濁水が外に出ないように前記フードの下部に設けられたスカートと、前記フード内で高さの違いにより重い砂分・無機土粒子分を避けて軽い有機分を採取するように吸い込み口が前記フードの所定の高さの位置に設けられたサンドポンプとを備えた採泥装置が記載されている。
この特許文献２に記載の装置は、段落［００１２］に「フード６内で高さの違いにより重い砂分・無機土粒子分を避けて軽い有機物を採取するように吸い込み口９ａを臨ませてサンドポンプ９が該フード６の上部に取り付けられている。」と記載されているように、サンドポンプの吸い込み口の高さを調整して、細粒分を分離するものである。
なお、特許文献２に記載の装置は、段落［００２０］に「なお、フード６の大きさは、重い物質が吸い込まれないように該フード６内の上昇流を考慮して決める。」と記載されているように、フードの大きさの調整も必要なものである。
The apparatus described in this patent document 2 has a paragraph [0012] in which the suction port 9a is exposed so as to collect light organic matter by avoiding heavy sand and inorganic soil particles due to the difference in height in the hood 6. The sand pump 9 is attached to the upper portion of the hood 6. As described, the height of the suction port of the sand pump is adjusted to separate the fine particles.
The apparatus described in Patent Document 2 states in paragraph [0020] that “the size of the hood 6 is determined in consideration of the upward flow in the hood 6 so that a heavy substance is not sucked”. As is done, it is also necessary to adjust the size of the hood.
特許文献１に記載の装置は、攪拌後、一度、静置する必要があるので、連続的に運転することができなかった。 The apparatus described in Patent Document 1 cannot be operated continuously because it is necessary to stand once after stirring.
また、特許文献２に記載の装置は、連続的な運転は可能であるが、分離条件を設定するために、吸い込み口の高さ及びフードの大きさを調整する必要があるので、調整作業に手間がかかる場合があった。 Moreover, although the apparatus described in Patent Document 2 can be operated continuously, it is necessary to adjust the height of the suction port and the size of the hood in order to set the separation conditions. It may take time.
従って、本発明が解決しようとする課題は、連続的な運転が可能であり、分離条件の設定のための調整作業に手間がかからない手段を提供することにある。 Therefore, the problem to be solved by the present invention is to provide a means that enables continuous operation and does not require time and effort for adjustment work for setting separation conditions.
第１に、
内部に攪拌機を納めた底面開放型の収納体と攪拌機とからなる攪拌体と、
該収納体の上端側に取り付けるハニカム構造の整流体と、
該整流体の上端側に取り付けるテーパ体と、
該テーパ体の上端側に取り付ける多孔板とを有し、
除去対象の細粒分が、整流体、テーパ体、多孔板を順に通るように、収納体、整流体、テーパ体、多孔板を順に組み合わせ、
該多孔板の開孔総面積を調整することで、除去対象の細粒分の分離条件を設定することを特徴とする、堆積物分離除去ヘッド。
第２に、
前記収納体の周囲に、開孔を有するフランジ板を取り付け、
該フランジ板の外周部に、拡散防止カーテンを取り付けたことを特徴とする、前記第１に記載の堆積物分離除去ヘッド。
第３に、
多孔板の開孔総面積の調整を、開孔総面積が異なる多孔板に交換することで行うことを特徴とする、前記第１または２に記載の堆積物分離除去ヘッド。
第４に、
多孔板の開孔総面積の調整を、開孔総面積が変化する多孔板で行うことを特徴とする、前記第１または２に記載の堆積物分離除去ヘッド。
第５に、
多孔板の開孔部分が、蜂巣状であることを特徴とする、前記第１〜４のいずれか一つに記載の堆積物分離除去ヘッド。
First,
A stirrer composed of an open bottom case containing a stirrer inside and a stirrer;
A honeycomb structure rectifying body attached to the upper end side of the storage body;
A tapered body attached to the upper end side of the rectifying body;
A perforated plate attached to the upper end side of the tapered body;
Combine the container, rectifier, taper, and porous plate in order so that the fine particles to be removed pass through the rectifier, taper, and porous plate in this order,
A deposit separation / removal head characterized in that a separation condition for fine particles to be removed is set by adjusting a total opening area of the perforated plate.
Second,
A flange plate having an opening is attached around the housing,
The deposit separation / removal head according to the first aspect, wherein a diffusion preventing curtain is attached to an outer peripheral portion of the flange plate.
Third,
3. The deposit separation / removal head according to the first or second aspect, wherein the adjustment of the total aperture area of the perforated plate is performed by exchanging with a perforated plate having a different total aperture area.
Fourth,
3. The deposit separation / removal head according to the first or second aspect, wherein the adjustment of the total aperture area of the perforated plate is performed by the perforated plate in which the total aperture area changes.
Fifth,
5. The deposit separation / removal head according to any one of the first to fourth aspects, wherein an opening portion of the perforated plate has a honeycomb shape .
本発明の堆積物分離除去ヘッドは、多孔板の上端側に、吸引ポンプに接続されたホースを、直接的に或いはＬ字状等の接続パイプを介して間接的に接続することで、堆積物分離除去装置として使用するものである。 The deposit separation / removal head of the present invention connects the hose connected to the suction pump to the upper end side of the perforated plate directly or indirectly through an L-shaped connection pipe. Used as a separation and removal device.
ここで、特定の用語は、次の意味で用いられる。 Here, specific terms are used in the following meaning.
攪拌体とは、攪拌機と、収納体とを組み合わせたものをいう。
ここで、攪拌機とは、堆積物を攪拌することができる機能を有するものをいい、プロペラを回転させて水流を起こすものの他に、ジェット水流を発生させるもの、振動を発生させるもの等が例示される。
また、収納体とは、内部に攪拌機を収納するもので、側面と天井面を有し、底面が開放したものをいい、例えば、底面開放型の円柱体や立方体により形成できる。
該収納体の側面は、攪拌機による過掘れ進行を抑制するように、掘削抑制壁として形成することが好ましい。
The stirrer means a combination of a stirrer and a storage body.
Here, the stirrer means one having a function capable of stirring the deposit, and examples include those that generate a water flow by rotating a propeller, those that generate a jet water flow, and those that generate a vibration. The
Further, the storage body stores the stirrer inside, has a side surface and a ceiling surface, and has an open bottom surface. For example, the storage body can be formed by a bottom surface open cylinder or a cube.
The side surface of the container is preferably formed as an excavation suppression wall so as to suppress the progress of excessive excavation by the stirrer.
ハニカム構造とは、蜂巣と同様に、複数の六角柱が集合したものをいう。 The honeycomb structure means a structure in which a plurality of hexagonal columns are gathered in the same manner as a honeycomb.
開孔総面積が異なる多孔板とは、蜂巣状の開孔部の個々の大きさは同じであるが、開孔部が形成されている部分の総面積が異なる複数の多孔板のことをいう。 The perforated plates having different total aperture areas refer to a plurality of perforated plates having the same size of the honeycomb-shaped aperture portions but having different total areas of the portions where the aperture portions are formed. .
開孔総面積が変化する多孔板とは、蜂巣状の開孔部の個々の大きさは同じであるが、開孔部が形成されている部分の総面積が連続的に可変するような構造、例えば、カメラの絞り構造による１枚の多孔板のことをいう。 A perforated plate with a change in the total area of the aperture is a structure in which the individual size of the honeycomb-shaped aperture is the same, but the total area of the portion where the aperture is formed is continuously variable For example, it refers to a single perforated plate having a diaphragm structure of a camera.
本発明によれば、多孔板の開孔総面積を調整することで、除去対象の細粒分の分離条件を設定するので、連続的な運転が可能であり、分離条件の設定のための調整作業に手間がかからない。 According to the present invention, by adjusting the total opening area of the perforated plate, the separation conditions for fine particles to be removed are set, so that continuous operation is possible, and adjustment for setting the separation conditions Work is not time-consuming.
また、フランジ板、拡散防止カーテンを設けたものは、攪拌機で攪拌された堆積物が、攪拌体の底面側から漏れ出して周囲に拡散し、施行現場における濁りの発生等を防止できる。 Moreover, the thing which provided the flange board and the diffusion prevention curtain can prevent the generation | occurrence | production of the turbidity etc. in the enforcement site, when the deposit stirred by the stirrer leaks from the bottom face side of the stirring body and diffuses to the surroundings.
図１は、本発明に係る堆積物分離除去ヘッドの使用状態を示す概略図である。 FIG. 1 is a schematic view showing a use state of a deposit separation / removal head according to the present invention.
本発明に係る堆積物分離除去ヘッド１は、吸引ポンプ２に接続されたホース３を、Ｌ字状の接続パイプ４を介して間接的に接続することで、堆積物分離除去装置として使用するものである。 The deposit separation / removal head 1 according to the present invention is used as a deposit separation / removal device by indirectly connecting a hose 3 connected to a suction pump 2 via an L-shaped connection pipe 4. It is.
図１に示す本発明に係る堆積物分離除去ヘッド１は、攪拌体１０と、該攪拌体１０の上端側に取り付けるハニカム構造の整流体２０と、該整流体２０の上端側に取り付ける逆円錐台状のテーパ体３０と、該テーパ体３０の上端側に取り付ける蜂巣状の開孔部分を有する多孔板４０とから構成される。 A deposit separation / removal head 1 according to the present invention shown in FIG. 1 includes a stirrer 10, a honeycomb structure rectifier 20 attached to the upper end side of the stirrer 10, and an inverted truncated cone attached to the upper end side of the rectifier body 20. And a perforated plate 40 having a honeycomb-shaped aperture attached to the upper end side of the tapered body 30.
攪拌体１０は、攪拌機１１と、該攪拌機１１を内部の２箇所に収納する底面開放型の円柱形状の収納体１２とから構成される。
ここで、収納体１２の側壁は、攪拌機１１による過掘れ進行を抑制するように、掘削抑制壁１２ａとして形成される。
The stirrer 10 includes a
Here, the side wall of the storage body 12 is formed as an
該堆積物分離除去ヘッド１は、攪拌機１１により攪拌された除去対象の細粒分が、整流体２０、テーパ体３０、多孔板４０を順に通るように組み合わせることで、細粒分の吸込流の流路を形成したものである。
The deposit separation / removal head 1 combines the fine particles to be removed, which have been stirred by the
ここで、テーパ体３０側から多孔板４０の開孔部分に向かう吸込流の吸込速度が、除去対象の細粒分の沈降速度より速く、かつ、除去対象以外の粒分である粗粒分の沈降速度より遅くなるような分離条件を考慮して、多孔板４０の開孔総面積を設定する。 Here, the suction speed of the suction flow from the tapered body 30 side toward the opening portion of the perforated plate 40 is faster than the settling speed of the fine particles to be removed, and the coarse particles that are the particles other than the removal object. In consideration of separation conditions that are slower than the settling rate, the total aperture area of the perforated plate 40 is set.
すると、吸引ポンプ２の吸引量が一定の場合であっても、多孔板４０の開孔総面積を小さくすることで、吸引速度を速めることができ、逆に、多孔板４０の開孔総面積を大きくすることで、吸引速度を遅くすることが可能になる。 Then, even if the suction amount of the suction pump 2 is constant, the suction speed can be increased by reducing the total aperture area of the porous plate 40, and conversely, the total aperture area of the porous plate 40. By increasing the value, the suction speed can be reduced.
多孔板４０の開孔総面積の調整は、開孔部が形成されている部分の総面積である開孔総面積が異なる複数の多孔板に交換することで行うことができる。 Adjustment of the total aperture area of the perforated plate 40 can be performed by exchanging with a plurality of perforated plates having different total aperture areas which are the total area of the portions where the aperture portions are formed.
また、多孔板４０の開孔総面積の調整を、カメラの絞り構造に類似の構造を備えた１枚の多孔板のように、開孔総面積が連続的に可変する多孔板で行うこともできる。 The total aperture area of the perforated plate 40 may be adjusted with a perforated plate whose total aperture area is continuously variable, such as a single perforated plate having a structure similar to the diaphragm structure of a camera. it can.
前記収納体１２の掘削抑制壁１２ａの周囲には、各攪拌機１１の近傍に設けた周辺水の取込筒５１による開孔を有するフランジ板５２を取り付ける。
Around the
そして、該フランジ板５２の外周部に、下方に向けて水底まで届くように、拡散防止カーテン５３を取り付ける。
Then, a
このように、フランジ板５２と拡散防止カーテン５３とを設けることで、細粒分が攪拌体１０から漏れ出した場合であっても、周囲への拡散が防止される。
Thus, by providing the
また、掘削抑制壁１２ａにより攪拌機１１による過掘れ進行が抑制されるので、水底の掘れによる隙間からの漏れ出しによる拡散にも対応でき、環境への負荷を少なくすることができる。
Moreover, since the
上記の本発明による堆積物分離除去ヘッド１は、攪拌機１１を動作させると共に、吸引ポンプ２を連続して運転することで、分離作業を連続して行うことができる。
The deposit separation / removal head 1 according to the present invention can continuously perform the separation operation by operating the
そして、動作中は、取込筒５１から周辺水を取り込むので、細粒分の漏れ出し防止と共に、過度な負圧の発生による、拡散防止カーテン５３の破損や巻き込み等を防止できる。
And during operation, since surrounding water is taken in from the taking-in cylinder 51, it is possible to prevent leakage of fine particles and to prevent the
１ 堆積物分離除去ヘッド
２ 吸引ポンプ
３ ホース
４ 接続パイプ
１０ 攪拌体
１１ 攪拌機
１２ 収納体
１２ａ 掘削抑制壁
２０ 整流体
３０ テーパ体
４０ 多孔板
５１ 取込筒
５２ フランジ板
５３ 拡散防止カーテン
DESCRIPTION OF SYMBOLS 1 Deposit separation removal head 2 Suction pump 3 Hose 4 Connection pipe 10
Claims (5)
該収納体の上端側に取り付けるハニカム構造の整流体と、
該整流体の上端側に取り付けるテーパ体と、
該テーパ体の上端側に取り付ける多孔板とを有し、
除去対象の細粒分が、整流体、テーパ体、多孔板を順に通るように、収納体、整流体、テーパ体、多孔板を順に組み合わせ、
該多孔板の開孔総面積を調整することで、除去対象の細粒分の分離条件を設定することを特徴とする、堆積物分離除去ヘッド。 A stirrer composed of an open bottom case containing a stirrer inside and a stirrer;
A honeycomb structure rectifying body attached to the upper end side of the storage body;
A tapered body attached to the upper end side of the rectifying body;
A perforated plate attached to the upper end side of the tapered body;
Combine the container, rectifier, taper, and porous plate in order so that the fine particles to be removed pass through the rectifier, taper, and porous plate in this order,
A deposit separation / removal head characterized in that a separation condition for fine particles to be removed is set by adjusting a total opening area of the perforated plate.
該フランジ板の外周部に、拡散防止カーテンを取り付けたことを特徴とする、請求項１に記載の堆積物分離除去ヘッド。 A flange plate having an opening is attached around the housing,
The deposit separation / removal head according to claim 1, wherein a diffusion prevention curtain is attached to an outer peripheral portion of the flange plate.
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| JP2007011045A JP4896750B2 (en) | 2007-01-22 | 2007-01-22 | Sediment separation and removal head |
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| JP2007011045A JP4896750B2 (en) | 2007-01-22 | 2007-01-22 | Sediment separation and removal head |
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| JP2008175017A JP2008175017A (en) | 2008-07-31 |
| JP4896750B2 true JP4896750B2 (en) | 2012-03-14 |
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