JPH07303884A - Scum transferring, collecting and removing apparatus - Google Patents
Scum transferring, collecting and removing apparatusInfo
- Publication number
- JPH07303884A JPH07303884A JP9947094A JP9947094A JPH07303884A JP H07303884 A JPH07303884 A JP H07303884A JP 9947094 A JP9947094 A JP 9947094A JP 9947094 A JP9947094 A JP 9947094A JP H07303884 A JPH07303884 A JP H07303884A
- Authority
- JP
- Japan
- Prior art keywords
- scum
- transfer
- spray
- suction port
- collecting
- 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.)
- Granted
Links
Landscapes
- Removal Of Floating Material (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、下水中に浮遊している
沈殿可能な固形物，フロックを沈殿除去して下水を浄化
する施設としての最初沈殿池や最終沈殿池あるいは導水
渠等に発生するスカムを除去するスカム除去装置に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is applied to a first settling basin, a final settling basin, a headrace, etc. as a facility for purifying sewage by removing sedimentable solid matter and flocs floating in sewage. The present invention relates to a scum removing device for removing scum.
【０００２】[0002]
【従来の技術】下水処理場においてスカム除去のため多
く採用され、実績のあるものとして、パイプスキマーに
よる方式を挙げることができる。このパイプスキマーに
よるスカム除去原理は、フライト式汚泥掻寄機の水面上
のリターンフライトを利用してスカムをパイプスキマー
まで掻き寄せ、切り欠きのあるパイプを定期的に回転
（転倒）させ、切り欠き部分より越流させ、その越流水
と共に水面上のスカムをパイプ内にのみ込み、スカム分
離機まで排出するものである。2. Description of the Related Art A pipe skimmer system is often used in sewage treatment plants for removing scum and has a proven record. The principle of scum removal using this pipe skimmer is that the return flight above the water surface of a flight-type sludge scraper is used to scrape the scum up to the pipe skimmer, and periodically rotate (overturn) the notched pipe to create a notch. Overflowing from a part, scum on the water surface is put only in the pipe together with the overflowed water, and is discharged to the scum separator.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、パイプ
スキマーまでの掻き寄せが不十分であったり、パイプス
キマー近傍のスカムしかのみ込めないため、スカムを完
全に除去し得ないという問題点があった。その結果、水
面上に長時間スカムが滞留して、悪臭を発生したり、さ
らにはスカムの上部が乾燥・固化して、スカムの除去を
一層困難としている。また、パイプスキマーの回転部が
錆び付き、回転不能となるといった構造的な欠陥や、水
路数が多くなるとパイプスキマーの水勾配が小さくな
り、流下能力も低下するという問題点を有するものであ
った。本発明は、従来のパイプスキマー方式による上記
した問題点を解決し、水流によりスカムを効率良く移送
してスカム吸込口まで寄せ集めることができ、かつ、収
集したスカムを効率良く除去することができるスカム移
送収集除去装置を提供することを目的とする。However, there is a problem that the scum cannot be completely removed because the scraping up to the pipe skimmer is insufficient or only the scum near the pipe skimmer can be put in. As a result, the scum stays on the water surface for a long time to generate a bad odor, and the upper part of the scum is dried and solidified, which makes it more difficult to remove the scum. Further, there are problems that the rotating part of the pipe skimmer becomes rusty and becomes unrotatable, and that if the number of water channels increases, the water gradient of the pipe skimmer becomes smaller and the flow-down capability also decreases. . INDUSTRIAL APPLICABILITY The present invention solves the above-mentioned problems caused by the conventional pipe skimmer system, can efficiently transfer scum by the water flow and gather it up to the scum suction port, and can efficiently remove the collected scum. An object is to provide a scum transfer collection and removal device.
【０００４】[0004]
【課題を解決するための手段】上記の目的を達成するた
め、本発明の第１は、水中における水面に近い位置に、
スカムの移送方向に所定の間隔で複数列配設され、圧力
流体のスプレーをスカムの移送方向と平行に、かつ、実
質的に水平方向に噴出する移送用スプレーノズルを備え
ることを特徴とするスカム移送装置を提案するものであ
り、本発明の第２は、上記の移送装置と、略扇形状の収
集ボックスと、前記移送装置により移送されてきたスカ
ムを収集ボックスの内壁に沿って、扇の要の位置に設け
たスカムの吸込口に寄せ集めるように、スカムの移送方
向と直交する方向に複数設けられ、スカムの吸込口に指
向させて圧力流体のスプレーを噴出する収集用スプレー
ノズルからなるスカム収集装置を備えることを特徴とす
るスカム移送収集装置を提案するものであり、また、本
発明の第３は、上記のスカム移送収集装置と、前記収集
装置におけるスカムの吸込口に寄せ集められたスカムを
吸引するポンプおよび吸引したスカムを排出する排出管
とからなるスカム除去装置とを備えることを特徴とする
スカム移送収集除去装置を提案するものである。In order to achieve the above-mentioned object, the first aspect of the present invention resides in a position near the water surface in water,
A scum comprising a plurality of transfer spray nozzles arranged in a plurality of rows at predetermined intervals in the scum transfer direction and for ejecting a spray of pressure fluid in a substantially horizontal direction in parallel with the scum transfer direction. A second aspect of the present invention proposes a transfer device, a transfer device described above, a substantially fan-shaped collection box, and scum transferred by the transfer device along the inner wall of the collection box. A collection spray nozzle that is provided in a direction orthogonal to the scum transfer direction so as to gather together at the scum suction port provided at a required position, and sprays a spray of pressure fluid toward the scum suction port. A third aspect of the present invention proposes a scum transfer / collection device characterized by comprising a scum collection device, and a third aspect of the present invention is a scum transfer / collection device described above and a scum in the collection device. It proposes a scum transfer collecting removing apparatus, characterized in that it comprises a scum removing apparatus comprising a discharge pipe for discharging the pump and sucked scum to suck the collected scum closer to the suction port.
【０００５】[0005]
【作用】移送装置は、収集装置から遠い側の移送用スプ
レーノズルから移送方向へ順次圧力流体のスプレーを噴
出し、スカムを移送する。収集装置は、収集用スプレー
ノズルからスカムの吸込口に向けて噴出される圧力流体
のスプレーにより、略扇形状の収集ボックスに沿って、
扇の要の位置に設けたスカムの吸込口にスカムを寄せ集
める。排出装置は、スカムの吸込口に収集されたスカム
を、ポンプにより吸引し、排出管を通してスカム貯留槽
に導く。The transfer device sequentially ejects a spray of pressure fluid in the transfer direction from the transfer spray nozzle on the side far from the collector to transfer the scum. The collecting device sprays the pressure fluid ejected from the collecting spray nozzle toward the suction port of the scum, and along the collecting box having a substantially fan shape,
Collect the scum in the suction port of the scum provided at the position of the fan. The discharge device sucks the scum collected in the suction port of the scum with a pump and guides it through the discharge pipe to the scum storage tank.
【０００６】[0006]
【実施例】以下に、本発明の実施例を図面に基づき詳細
に説明する。図は、いずれも本発明に係るスカム除去装
置の実施例図であって、図１はフロー図、図２は要部平
面図、図３は図２のＡ−Ａ断面図、図４はスカムの移送
状態を示す拡大説明図、図５は図２のＢ−Ｂ断面図、図
６は同じくＣ−Ｃ断面図、図７は収集したスカムを吸引
して排出する状態を示す拡大説明図、図８はスカム除去
装置を最終沈殿池に設置した状態の平面図、図９は図８
のＤ−Ｄ断面図である。Embodiments of the present invention will now be described in detail with reference to the drawings. 1 is a flow chart of FIG. 1, FIG. 2 is a plan view of essential parts, FIG. 3 is a sectional view taken along line AA of FIG. 2, and FIG. 4 is a scum. 2 is an enlarged explanatory view showing a transfer state of the scum, FIG. 5 is a sectional view taken along line BB of FIG. 2, FIG. 6 is a sectional view taken along line CC of FIG. 6, and FIG. 7 is an enlarged explanatory view showing a state where the collected scum is sucked and discharged. FIG. 8 is a plan view showing a state in which the scum removing device is installed in the final settling tank, and FIG. 9 is shown in FIG.
FIG.
【０００７】図１に示すように、本発明に係るスカム移
送収集除去装置は、スカム移送装置１，スカム収集装置
２およびスカム除去装置３を備えるものであり、以下、
その各々の構成について説明する。As shown in FIG. 1, the scum transfer collecting and removing device according to the present invention comprises a scum transferring device 1, a scum collecting device 2 and a scum removing device 3.
The respective configurations will be described.
【０００８】スカム移送装置１は、沈殿池内の水面下に
おいて、スカムの移送方向に所定の間隔で複数列配設さ
れた移送用スプレーノズル１０ａ，１０ｂ〜１０ｎによ
り構成される。図２，図３および図６をも参照して、沈
殿池を構築している両側の構造物１１，１１′の上端部
間に、支持梁１２をスカムの移送方向に所定の間隔で複
数列架設する。各支持梁１２の両端部寄りには、支柱１
３，１３′を垂設し、その間に桁材１４を架け渡す。ま
た、支持梁１２の両端部からはスカムの移送方向と逆方
向にブラケット１５，１５′を突設させる。そして、桁
材１４には、それぞれ、スカムの移送方向と直交する方
向に並列状態に複数個の移送用スプレーノズル１０ａ，
１０ｂ〜１０ｎを取付け、また、ブラケット１５，１
５′のそれぞれにも、壁面清浄用スプレーノズル１６
ａ，１６ｂ〜１６ｎを取付けている。The scum transfer device 1 is composed of transfer spray nozzles 10a, 10b to 10n arranged below the water surface in the settling tank in a plurality of rows at predetermined intervals in the scum transfer direction. Referring also to FIGS. 2, 3 and 6, between the upper ends of the structures 11, 11 ′ on both sides of which the sedimentation basin is constructed, the support beams 12 are arranged in a plurality of rows at predetermined intervals in the scum transfer direction. Build. The support columns 1 are provided near both ends of each support beam 12.
3,3 'are hung vertically, and the girder material 14 is hung between them. Further, brackets 15 and 15 'are projected from both ends of the support beam 12 in the direction opposite to the scum transfer direction. Then, a plurality of transfer spray nozzles 10a, 10a,
10b to 10n are attached, and brackets 15 and 1
Each of 5'is also provided with a wall surface spray nozzle 16
a, 16b to 16n are attached.
【０００９】移送用スプレーノズル１０ａ，１０ｂ〜１
０ｎおよび壁面清浄用スプレーノズル１６ａ，１６ｂ〜
１６ｎのそれぞれは、送水管１７により一系統にまとめ
られて、水中に設けた圧力水ポンプ１８に接続され、そ
の先端部より圧力水のスプレーを噴出する。移送用スプ
レーノズル１０ａ，１０ｂ〜１０ｎは、スプレー形状の
フラットなものを採用し、水中における水面に近い位
置、具体的には水面下 200〜 100mm以内程度の位置で、
圧力水のスプレーがスカムの移送方向と平行に、かつ、
実質的に水平方向に噴出するように取付ける。また、移
送用スプレーノズル１０ａ，１０ｂ〜１０ｎを水面下約
５０ｍｍ前後に設けてよく、少し上向きに噴射するよう
にしてもよい。Transfer spray nozzles 10a, 10b-1
0n and spray nozzles 16a and 16b for cleaning wall surfaces
Each of 16n is integrated into one system by a water supply pipe 17, is connected to a pressure water pump 18 provided in water, and sprays pressure water from its tip. The transfer spray nozzles 10a, 10b to 10n adopt a flat spray shape, and are located at a position close to the water surface in water, specifically, at a position within 200 to 100 mm below the water surface.
The spray of pressure water is parallel to the scum transfer direction, and
Mount so that it squirts out substantially horizontally. Further, the transfer spray nozzles 10a, 10b to 10n may be provided about 50 mm below the surface of the water, and may be jetted slightly upward.
【００１０】図４に示すように、スカムＳは、移送用ス
プレーノズル１０ａあるいは以降の図示しない移送用ス
プレーノズル１０ｂ〜１０ｎから噴出する圧力水のスプ
レーにより、表層流Ｃが発生し、この表層流Ｃにより、
移送方向へ移送される。この場合、電動弁の開閉によ
り、収集装置２から遠い側の移送用スプレーノズル１０
ａから、収集装置２に近い側の移送用スプレーノズル１
０ｎに向って順次スプレーすれば、スプレー水量を最小
限に抑え、かつ効率良くスカムを移送することができ
る。As shown in FIG. 4, in the scum S, a surface layer flow C is generated by the spray of pressure water jetted from the transfer spray nozzle 10a or the transfer spray nozzles 10b to 10n (not shown) thereafter, and the surface layer flow C is generated. By C,
Transferred in the transfer direction. In this case, the transfer spray nozzle 10 on the side far from the collecting device 2 is opened and closed by opening and closing the electrically operated valve.
The transfer spray nozzle 1 on the side closer to the collecting device 2 from a.
By sequentially spraying toward 0n, the amount of spray water can be minimized and the scum can be efficiently transferred.
【００１１】スカム収集装置２は、図１ないし図３およ
び図５を参照して、前記スカム移送装置１の延長上に配
設された略扇形状の収集ボックス２１と、扇の要の位置
に設けたスカムの吸込口２２と、スカムの吸込口２２に
指向させて圧力水のスプレーを噴出する収集用スプレー
ノズル２３とにより構成される。Referring to FIGS. 1 to 3 and 5, the scum collecting device 2 has a substantially fan-shaped collecting box 21 arranged on an extension of the scum transferring device 1 and a main position of the fan. It is composed of a scum suction port 22 provided and a collecting spray nozzle 23 that directs the scum suction port 22 to eject a spray of pressure water.
【００１２】スカム移送装置１の延長上の所定位置にお
いて、沈殿池を構築している両側の構造物１１，１１′
の上端部間に、長枠状の支持架台２４を固設し、この支
持架台２４の下端部に略扇形状の収集ボックス２１を取
付ける。この収集ボックス２１は、スカムの移送方向の
中間部分が前部分（スカムの吸込口２２の配設側）と比
較して浅瀬となるように形成され（図３）、水面位置
は、この浅瀬の底面よりも高く、収集ボックス２１の上
端部よりも低く設定する。本実施例では、浅瀬部分にお
ける収集ボックス２１の高さ 200mm，このときの水深を
50mmとした。収集ボックス２１は、その後方開口部には
底板がなく側壁２１ａのみで形成され、また、前記浅瀬
部分の底板２１ｃの後部には、底板２１ｃの下方にスカ
ムが潜り込まないように、遮蔽板２１ｂを設けている。
なお、収集ボックス２１の浅瀬部分より前側は、平面視
矩形として、その内側に扇形の側壁を形成してもよい。At a predetermined position on the extension of the scum transfer device 1, the structures 11, 11 'on both sides constructing a sedimentation basin
A long frame-shaped support frame 24 is fixed between the upper ends of the support frames 24, and a substantially fan-shaped collection box 21 is attached to the lower end of the support frame 24. The collecting box 21 is formed such that the middle part of the scum transfer direction is shallower than the front part (on the side where the scum suction port 22 is arranged) (FIG. 3), and the water surface position is the shallow part. It is set higher than the bottom and lower than the upper end of the collection box 21. In this embodiment, the height of the collecting box 21 in the shallow part is 200 mm, and the water depth at this time is
It was set to 50 mm. The collection box 21 has no bottom plate in its rear opening and is formed only by the side wall 21a. Further, a shield plate 21b is provided at the rear of the bottom plate 21c in the shallow portion so that scum does not get below the bottom plate 21c. It is provided.
The front side of the shallow portion of the collection box 21 may be rectangular in plan view, and a fan-shaped side wall may be formed inside thereof.
【００１３】収集ボックス２１の扇の要の位置には、ス
カムの吸込口２２が設けられる。収集ボックス２１の扇
形状の開口端には、このスカムの吸込口２２に指向させ
て圧力水のスプレーを噴出する収集用スプレーノズル２
３を、スカムの移送方向と直交する方向に複数配設す
る。すなわち、沈殿池を構築している両側の構造物１
１，１１′の上端部間に、支持梁２５を架設する。支持
梁２５の両端部寄りには、支柱２６，２６′を垂設し、
その間に桁材２７を架け渡す。そして、この桁材２７
に、並列状態に複数個の収集用スプレーノズル２３をス
カムの吸込口２２を指向して内側を向くように、かつ、
硬くなったスカムを破砕するため、水面上方における水
面に近い位置で水平方向やや下向き（15゜位）に取付け
る。収集用スプレーノズル２３は、送水管１７′を介し
て前記圧力水ポンプ１８に接続され、その先端部より圧
力水のスプレーを噴出する。前記スカム移送装置１によ
り移送されてきたスカムは、収集ボックス２１の内壁に
沿ってこの吸込口２２に寄せ集められる。なお、収集用
スプレーノズル２３を水中における水面に近い位置に取
付けてもよい。A suction port 22 for the scum is provided at an essential position of the fan of the collection box 21. At the fan-shaped opening end of the collection box 21, a collection spray nozzle 2 for ejecting a spray of pressure water toward the suction port 22 of this scum.
A plurality of 3 are arranged in a direction orthogonal to the scum transfer direction. That is, the structures 1 on both sides constructing the sedimentation basin
A support beam 25 is installed between the upper end portions of 1 and 11 '. Struts 26 and 26 'are vertically provided near both ends of the support beam 25,
In the meantime, the girder material 27 is bridged. And this girder material 27
A plurality of collecting spray nozzles 23 in a parallel state so as to face the suction port 22 of the scum and face inward, and
In order to crush the hardened scum, install it at a position near the water surface above the water surface and slightly downward (about 15 °). The collecting spray nozzle 23 is connected to the pressure water pump 18 via a water supply pipe 17 ', and sprays pressure water spray from its tip. The scum transferred by the scum transfer device 1 is gathered together in the suction port 22 along the inner wall of the collection box 21. The collecting spray nozzle 23 may be attached at a position near the water surface in water.
【００１４】次に、スカム除去装置３は、図１ないし図
３および図５を参照して、前記収集装置２におけるスカ
ムの吸込口２２に寄せ集められたスカムを吸引するポン
プ３１と、吸引したスカムを排出する排出管３３とによ
り構成される。Next, referring to FIGS. 1 to 3 and 5, the scum removing device 3 sucks the scum collected in the suction port 22 of the scum of the collecting device 2 and the pump 31. And a discharge pipe 33 for discharging scum.
【００１５】ポンプ３１は、自吸式ポンプ等で、吸引側
に吸引管３２を設けてある。また、ポンプ３１は水中ポ
ンプや水封式の真空ポンプであってもよい。吸引管３２
は、Ｊ字形に形成されており、その一端部は、前記ポン
プ３１の吸引側に接続され、また、他端部は、前記収集
ボックス２１の扇の要における水面直下の位置に臨ま
せ、スカム吸込口２２として、収集装置２により寄せ集
められたスカムを吸引する。The pump 31 is a self-priming pump or the like, and a suction pipe 32 is provided on the suction side. Further, the pump 31 may be a submersible pump or a water-sealed vacuum pump. Suction tube 32
Is formed in a J shape, one end of which is connected to the suction side of the pump 31, and the other end of which faces the position directly below the water surface in the corner of the fan of the collection box 21. The scum collected by the collecting device 2 is sucked as the suction port 22.
【００１６】また、排出管３３は、前記ポンプ３１の排
出側に接続され、吸引したスカムを搬送してスカム貯留
槽４０に貯留する。貯留したスカムは、ポンプにより流
入路を通って送水され、次工程において、処理されるこ
とになる。あるいは、これを加圧浮上濃縮し、濃縮した
スカムを脱水機により脱水してもよい。The discharge pipe 33 is connected to the discharge side of the pump 31, conveys the sucked scum and stores it in the scum storage tank 40. The accumulated scum is sent by a pump through the inflow passage and is processed in the next step. Alternatively, this may be concentrated by flotation under pressure, and the concentrated scum may be dehydrated by a dehydrator.
【００１７】図８および図９は、上記のスカム除去装置
を最終沈殿池に設置した状態の平面図および断面図であ
る。池内には、沈殿汚泥を速やかに引き抜くための汚泥
かき寄せ機８０が設けられる。汚泥かき寄せ機８０は、
多数のかき寄せ板を取り付けた２条のエンドレスチェー
ン８１と、池底レール８２と、汚泥かき寄せ機駆動装置
８３とから構成される。FIG. 8 and FIG. 9 are a plan view and a sectional view showing a state in which the scum removing device is installed in the final settling tank. A sludge scraper 80 is provided in the pond for promptly removing the settled sludge. The sludge scraper 80
It is composed of two endless chains 81 to which a large number of scraping plates are attached, a pond bottom rail 82, and a sludge scraping machine driving device 83.
【００１８】なお、上記の実施例においては、移送用ス
プレーノズルおよび収集用スプレーノズルから噴出させ
る圧力流体として、圧力水を用いたが、これに替えて、
あるいは、これに併せて圧縮空気を用いてもよい。圧力
水と圧縮空気を併用する場合は、圧力水の送給路に別配
管でコンプレッサからの圧縮空気供給路を設け、圧力水
のノズルと圧縮空気のノズルを平行に配設（縦方向また
は横方向）するか、圧力水のノズルを中心にしてその周
りに圧縮空気のノズルを複数配設し、二流体を噴出させ
る。また、圧力水と圧縮空気を混気させてもよい。In the above embodiment, pressure water was used as the pressure fluid ejected from the transfer spray nozzle and the collection spray nozzle, but instead of this,
Alternatively, compressed air may be used together with this. When using pressure water and compressed air together, install a compressed air supply path from the compressor in a separate pipe in the pressure water supply path, and arrange the pressure water nozzle and the compressed air nozzle in parallel (vertical or horizontal direction). Direction) or by arranging a plurality of compressed air nozzles around the pressure water nozzle and ejecting two fluids. Further, the pressure water and the compressed air may be mixed.
【００１９】[0019]
【発明の効果】以上説明したように、本発明に係るスカ
ム移送装置は、水中における水面上近傍に複数列配設さ
れ、圧力流体のスプレーをスカムの移送方向と平行に、
かつ、ほぼ水平方向に噴出する移送用スプレーノズルを
用い、これをスカムの移送方向に複数列配設したので、
スカムは、収集装置から遠い側の移送用スプレーノズル
から収集装置に近い側の移送用スプレーノズルに向け順
次噴出する圧力流体のスプレーにより、表層流が発生
し、この表層流により、移送方向へ効率良く移送され
る。また、このスカム移送装置と、収集用スプレーノズ
ルおよび略扇形状の収集ボックスからなるスカム収集装
置とを備えるスカム移送収集装置は、移送されてきたス
カムを収集ボックスの内壁に沿って、扇の要の位置に設
けたスカムの吸込口に強制的に寄せ集める。そして、上
記スカム移送装置と、スカム収集装置と、ポンプおよび
排出管からなるスカム除去装置とを備えるスカム移送収
集除去装置は、移送収集されてきたスカムを、スカムの
吸込口から吸引し、排出管を通して効率良く除去するこ
とができる効果がある。As described above, the scum transfer device according to the present invention is arranged in a plurality of rows near the water surface in water, and sprays the pressure fluid in parallel with the scum transfer direction.
Moreover, since a transfer spray nozzle that ejects in a substantially horizontal direction is used, and a plurality of these are arranged in the scum transfer direction,
The scum causes a surface layer flow to be generated by spraying pressure fluid that is sequentially ejected from the transfer spray nozzle on the side far from the collector to the transfer spray nozzle on the side close to the collector. Well transferred. In addition, a scum transfer collecting device including this scum transferring device and a scum collecting device including a spray nozzle for collecting and a fan-shaped collecting box collects the transferred scum along the inner wall of the collecting box. Forcibly gather at the suction port of the scum provided at the position. A scum transfer collection and removal device including the scum transfer device, a scum collection device, and a scum removal device including a pump and a discharge pipe sucks the scum that has been transferred and collected from the suction port of the scum, and discharges the scum. There is an effect that can be efficiently removed through.
【図１】本発明に係るスカム除去装置の実施例を示すフ
ロー図である。FIG. 1 is a flow chart showing an embodiment of a scum removing device according to the present invention.
【図２】図１の要部平面図である。FIG. 2 is a plan view of an essential part of FIG.
【図３】図２のＡ−Ａ断面図である。3 is a cross-sectional view taken along the line AA of FIG.
【図４】スカムの移送状態を示す拡大説明図である。FIG. 4 is an enlarged explanatory view showing a transfer state of scum.
【図５】図２のＢ−Ｂ断面図である。5 is a sectional view taken along line BB in FIG.
【図６】図２のＣ−Ｃ断面図である。6 is a cross-sectional view taken along line CC of FIG.
【図７】収集したスカムを吸引して排出する状態を示す
拡大説明図である。FIG. 7 is an enlarged explanatory view showing a state in which collected scum is sucked and discharged.
【図８】スカム移送収集除去装置を最終沈殿池に設置し
た状態の平面図である。FIG. 8 is a plan view showing a state in which the scum transfer collection / removal device is installed in the final sedimentation tank.
【図９】図８のＤ−Ｄ断面図である。9 is a cross-sectional view taken along the line DD of FIG.
１ …スカム移送装置 ２ …スカム収集装置 ３ …スカム除去装置 １０ａ，１０ｂ〜１０ｎ…移送用スプレーノズル １７ …送水管 １８ …圧力水ポンプ ２１ …略扇形状の収集ボックス ２２ …スカムの吸込口 ２３ …収集用スプレーノズル ３１ …ポンプ ３２ …吸引管 ３３ …排出管 ４０ …スカム貯留槽 DESCRIPTION OF SYMBOLS 1 ... Scum transfer device 2 ... Scum collection device 3 ... Scum removal device 10a, 10b-10n ... Transfer spray nozzle 17 ... Water pipe 18 ... Pressure water pump 21 ... Approximate fan-shaped collection box 22 ... Scum suction port 23 ... Collection spray nozzle 31 ... Pump 32 ... Suction pipe 33 ... Discharge pipe 40 ... Scum storage tank
───────────────────────────────────────────────────── フロントページの続き (72)発明者 皆方 護 東京都中央区京橋１丁目３番３号前澤工業 株式会社内 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Mamoru Minakata Maezawa Industry Co., Ltd. 1-3-3 Kyobashi, Chuo-ku, Tokyo
Claims (3)
の移送方向に所定の間隔で複数列配設され、圧力流体の
スプレーをスカムの移送方向と平行に、かつ、水平方向
に噴出する移送用スプレーノズルを備えることを特徴と
するスカム移送装置。1. A transfer for arranging a plurality of rows at a predetermined interval in the scum transfer direction at a predetermined distance in the water and for spraying a pressure fluid in a horizontal direction in parallel with the scum transfer direction. A scum transfer device comprising a spray nozzle.
の移送方向に所定の間隔で複数列配設され、圧力流体の
スプレーをスカムの移送方向と平行に、かつ、水平方向
に噴出する移送用スプレーノズルからなるスカム移送装
置、および、略扇形状の収集ボックスと、前記移送装置
により移送されてきたスカムを収集ボックスの内壁に沿
って、扇の要の位置に設けたスカムの吸込口に寄せ集め
るように、スカムの移送方向と直交する方向に複数設け
られ、スカムの吸込口に指向させて圧力流体のスプレー
を噴出する収集用スプレーノズルからなるスカム収集装
置を備えることを特徴とするスカム移送収集装置。2. A transfer for arranging a plurality of rows at a predetermined interval in a scum transfer direction at a position close to the water surface in water and ejecting a spray of pressure fluid in a horizontal direction in parallel with the scum transfer direction. A scum transfer device consisting of a spray nozzle, a substantially fan-shaped collection box, and the scum transferred by the transfer device are moved along the inner wall of the collection box to the suction port of the scum provided at the main position of the fan. A scum collecting device comprising a plurality of collecting spray nozzles provided in a direction orthogonal to the scum transferring direction so as to collect and spraying a spray of the pressure fluid toward the suction port of the scum. Collection device.
の移送方向に所定の間隔で複数列配設され、圧力流体の
スプレーをスカムの移送方向と平行に、かつ、水平方向
に噴出する移送用スプレーノズルからなるスカム移送装
置、略扇形状の収集ボックスと、前記移送装置により移
送されてきたスカムを収集ボックスの内壁に沿って、扇
の要の位置に設けたスカムの吸込口に寄せ集めるよう
に、スカムの移送方向と直交する方向に複数設けられ、
スカムの吸込口に指向させて圧力流体のスプレーを噴出
する収集用スプレーノズルからなるスカム収集装置、お
よび、前記収集装置におけるスカムの吸込口に寄せ集め
られたスカムを吸引するポンプと、吸引したスカムを排
出する排出管とからなるスカム除去装置とを備えること
を特徴とするスカム移送収集除去装置。3. A transfer for arranging a plurality of rows at a predetermined distance in the scum transfer direction at a position close to the water surface in water and spraying a pressure fluid spray in a horizontal direction in parallel with the scum transfer direction. A scum transfer device consisting of a spray nozzle, a substantially fan-shaped collection box, and scum transferred by the transfer device along the inner wall of the collection box to a suction port of the scum provided at the main position of the fan. , A plurality of them are provided in a direction orthogonal to the scum transfer direction,
A scum collecting device composed of a collecting spray nozzle for ejecting a spray of pressure fluid toward the suction port of the scum, a pump for sucking the scum gathered at the suction port of the scum in the collecting device, and the sucked scum And a scum removing device including a discharge pipe for discharging the scum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09947094A JP3371271B2 (en) | 1994-05-13 | 1994-05-13 | Scum collection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP09947094A JP3371271B2 (en) | 1994-05-13 | 1994-05-13 | Scum collection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07303884A true JPH07303884A (en) | 1995-11-21 |
| JP3371271B2 JP3371271B2 (en) | 2003-01-27 |
Family
ID=14248207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP09947094A Expired - Lifetime JP3371271B2 (en) | 1994-05-13 | 1994-05-13 | Scum collection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3371271B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002233867A (en) * | 2001-02-13 | 2002-08-20 | Tokyo Metropolis | Process for removing scum layer, spray nozzle for scum layer removal and biological reaction vessel |
| KR100893941B1 (en) * | 2009-01-13 | 2009-04-24 | 주식회사 세창이엔텍 | Device for washing a crushed construction waste for sand |
| JP7018552B1 (en) * | 2020-12-08 | 2022-02-10 | 宇都宮工業株式会社 | A headrace equipped with a ejection nozzle for a scum removing device and an ejection nozzle for the scum removing device. |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI708897B (en) * | 2017-07-08 | 2020-11-01 | 日商東京都下水道服務股份有限公司 | Scum accumulation suppression device |
-
1994
- 1994-05-13 JP JP09947094A patent/JP3371271B2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002233867A (en) * | 2001-02-13 | 2002-08-20 | Tokyo Metropolis | Process for removing scum layer, spray nozzle for scum layer removal and biological reaction vessel |
| JP4499937B2 (en) * | 2001-02-13 | 2010-07-14 | 東京都 | Scum layer removing method, spray nozzle for removing scum layer, and biological reaction tank |
| KR100893941B1 (en) * | 2009-01-13 | 2009-04-24 | 주식회사 세창이엔텍 | Device for washing a crushed construction waste for sand |
| JP7018552B1 (en) * | 2020-12-08 | 2022-02-10 | 宇都宮工業株式会社 | A headrace equipped with a ejection nozzle for a scum removing device and an ejection nozzle for the scum removing device. |
| WO2022123652A1 (en) * | 2020-12-08 | 2022-06-16 | 宇都宮工業株式会社 | Jet nozzle for scum removal device, and water conduit provided with jet nozzle for scum removal device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3371271B2 (en) | 2003-01-27 |
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