JP2892284B2 - Blower for liquid suspended matter - Google Patents
Blower for liquid suspended matterInfo
- Publication number
- JP2892284B2 JP2892284B2 JP20726994A JP20726994A JP2892284B2 JP 2892284 B2 JP2892284 B2 JP 2892284B2 JP 20726994 A JP20726994 A JP 20726994A JP 20726994 A JP20726994 A JP 20726994A JP 2892284 B2 JP2892284 B2 JP 2892284B2
- Authority
- JP
- Japan
- Prior art keywords
- air
- pipe
- liquid surface
- blowing
- floating
- 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.)
- Expired - Fee Related
Links
Landscapes
- Removal Of Floating Material (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、液面浮遊物の吹寄せ装
置に係り、特に下水または廃水処理施設等における導水
渠、沈澱池、貯溜槽、食品加工分野における池、タン
ク、水路等の液面に浮遊する浮遊物を沈めることなく、
目的位置まで吹き寄せて移動させる液面浮遊物の吹寄せ
装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for blowing liquids floating on the surface of a liquid, and more particularly, to a drain, a sedimentation basin, a storage tank in a sewage or wastewater treatment facility or the like, a liquid in a pond, a tank, a waterway, etc. in the food processing field. Without sinking floating materials floating on the surface,
TECHNICAL FIELD The present invention relates to a device for blowing a liquid surface floating object to move it to a target position.
【０００２】[0002]
【従来の技術】廃水または下水処理施設における、例え
ば最初沈澱池等において、水面上に浮遊する浮遊物を効
率よく分離回収する技術が求められている。このような
液面浮遊物の吹寄せ装置または掻寄装置としては、例え
ば水面に向かって所定方向に水をスプレする水スプレ装
置、所定量の空気を所定角度で吹き付ける空気吹き付け
装置、３軸もしくは４軸等の掻寄機またはこれらの組合
せが知られている。2. Description of the Related Art In a wastewater or sewage treatment facility, for example, in a first settling basin or the like, there is a demand for a technique for efficiently separating and recovering suspended matters floating on the water surface. Examples of such a device for blowing or scraping a floating substance on the liquid surface include a water spray device for spraying water in a predetermined direction toward the water surface, an air blowing device for blowing a predetermined amount of air at a predetermined angle, a triaxial or a four-shaft device. A scraper such as a shaft or a combination thereof is known.
【０００３】図１１は、従来のスカム除去装置（実開平
３−１２３５９４号公報）を示す断面図である。このス
カム除去装置は、沈澱池１０１に貯溜された被処理水１
０３の水面１０２の近傍、および底部にそれそれ水没す
るように設けられた３本のシャフト１０５と、該シャフ
ト１０５にそれぞれ設けられたスプロケット１０６と、
これら３つのスプロケットに架設されたチェーン１０７
と、該チェーン１０７に等間隔で複数設けられたフライ
ト１０８とを有する３軸式掻寄機１０９と、該３軸式掻
寄機１０９の後流側の水面１０２に設けられた堰１１５
を有するトラフ１１４と、前記水面１０２の上部空間部
を該水面１０２に沿ってトラフ１１４方向に延びる空気
送りパイプ１１１と、該空気送りパイプ１１１を分岐し
た複数の空気パイプ１１２と、該空気パイプ１１２に設
けられた空気噴出口１１３とを有する空気吹き付け装置
とで構成されている。FIG. 11 is a sectional view showing a conventional scum removing device (Japanese Utility Model Laid-Open No. 3-123594). This scum removal device is provided with the water 1 to be treated stored in the sedimentation basin 101.
03, three shafts 105 provided near the water surface 102 and at the bottom so as to be submerged respectively, and sprockets 106 provided on the shafts 105, respectively.
Chain 107 erected on these three sprockets
A three-axis scraper 109 having a plurality of flights 108 provided at equal intervals on the chain 107; and a weir 115 provided on the water surface 102 on the downstream side of the three-axis scraper 109.
A trough 114, an air feed pipe 111 extending in a direction above the water surface 102 toward the trough 114 along the water surface 102, a plurality of air pipes 112 branched from the air feed pipe 111, and the air pipe 112. And an air blowing device having an air ejection port 113 provided at the bottom.
【０００４】このような構成において、前記３軸式掻寄
機１０９が駆動され、水面１０２に浮遊する図示省略し
たスカムは前記３軸式掻寄機１０９のフライト１０８に
よってトラフ１１４方向に掻寄せられ、堰１１５を溢流
してトラフ１１４に流入する。このとき空気吹き付け装
置１１０の空気パイプ１１２に設けられた空気噴出口１
１３から所定量の空気が所定角度で液面に向かって吹出
され、前記掻寄機１０９のフライト１０８によって掻寄
せられたスカムのトラフ１１４方向への移動が促進され
る。In such a configuration, the three-axis scraper 109 is driven, and the scum (not shown) floating on the water surface 102 is scraped toward the trough 114 by the flight 108 of the three-axis scraper 109. , Overflows the weir 115 and flows into the trough 114. At this time, the air ejection port 1 provided in the air pipe 112 of the air blowing device 110
A predetermined amount of air is blown toward the liquid surface at a predetermined angle from 13, and the movement of the scum scraped by the flight 108 of the scraper 109 in the direction of the trough 114 is promoted.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、上記従
来の空気吹き付け装置は、沈澱池の水面上の空気を乱
し、前記液面で発生する臭気、危険ガス等を拡散するだ
けでなく、水面に形成される表層流が一定していないの
で、浮遊物が拡散して搬送効果が低下し、十分な吹き寄
せ効果が得られないという問題があった。However, the above-mentioned conventional air blowing device not only disturbs the air on the water surface of the sedimentation basin and diffuses odors, dangerous gases, etc. generated on the liquid surface, but also spreads the water on the water surface. Since the formed surface flow is not constant, there is a problem that the suspended matter is diffused, the transport effect is reduced, and a sufficient blowing effect cannot be obtained.
【０００６】本発明の目的は、上記従来技術の問題点を
解決し、導水渠、沈澱池等の液面に安定した表層流を形
成し、該表層流によって浮遊物を沈降させることなく到
達目的位置まで移動または収集することができる液面浮
遊物の吹寄せ装置を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art, to form a stable surface flow on the liquid surface of a headrace, a sedimentation basin, or the like, and to achieve the object without causing suspended matter to settle by the surface flow. It is an object of the present invention to provide an apparatus for blowing a liquid surface suspended matter which can be moved or collected to a position.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するた
め、本願で特許請求される発明は、以下のとおりであ
る。 （１） 液面の上部空間部に空気吹出し管を設け、該空
気吹出し管から前記液面に向かって所定角度で空気を吹
出して液面浮遊物を到達目的位置まで移動させる液面浮
遊物の吹寄せ装置において、前記空気吹出し管の前記液
面に対する空気吹出し角度を５〜１５度とするとともに
該空気吹出し管を前記液面から１００〜３００ｍｍの間
隔を隔てた上部空間部に設け、前記浮遊物の到達目的位
置または該到達目的位置の後流側の前記液面から３００
〜１０００ｍｍの間隔を隔てた上部空間部に空気吸込管
を設け、該空気吸込管と前記空気吹出し管とを連通ダク
トで連結し、該連通ダクトに、前記空気吸込管から吸引
され、連通ダクトおよび空気吹出し管を経て前記液面に
向かって吹き出され、該液面に前記浮遊物を伴った表層
流を形成して前記空気吸込管に流入する、空気の循環流
を形成する送風機を設けたことを特徴とする液面浮遊物
の吹寄せ装置。 （２）前記液面が蓋で覆われているかまたは暗渠におけ
る、前記蓋または上床版と液面との間の空間部に前記空
気吸込管および空気吹出し管を設け、該空気吸込管と空
気吹出し管を前記蓋または上床版を貫通して延びる連通
ダクトで連結し、該連通ダクトに、前記空気の循環流を
形成する送風機を設けたことを特徴とする上記（１）記
載の液面浮遊物の吹寄せ装置。 （３）前記空気吹出し管に設けられた空気吹出し口と液
面との間隔および前記空気吹出し管から液面に向かって
吹き出される空気の吹出し角度を調節する調節手段を設
けたことを特徴とする上記（１）または（２）記載の液
面浮遊物の吹寄せ装置。 （４）掻寄機が設けられた沈殿池または貯溜槽の液面の
上部空間部設けられたことを特徴とする上記（１）ない
し（３）のいずれか記載の液面浮遊物の吹寄せ装置。（５）前記空気吹出し管の、液面浮遊物の移動方向後流
側の液面下に、上方に向かって空気を吹き出す攪拌用の
空気吹出し口を設けたことを特徴とする上記（１ ）ない
し（４）のいずれかに記載の液面浮遊物の吹寄せ装置。 Means for Solving the Problems To achieve the above object, the invention claimed in the present application is as follows. (1) An air blowing pipe is provided in a space above the liquid surface, and air is blown from the air blowing pipe toward the liquid surface at a predetermined angle to move the liquid surface floating substance to a destination position. In the blowing device, the liquid in the air blowing pipe is
The air blowing angle to the surface should be 5 to 15 degrees
The air outlet pipe is between 100 and 300 mm from the liquid level.
It is provided in the upper space part which is separated, and is 300 m from the liquid surface on the downstream side of the arrival target position of the suspended matter or the arrival target position.
An air suction pipe is provided in an upper space separated by a distance of ~ 1000 mm, and the air suction pipe and the air blowing pipe are connected by a communication duct, and the communication duct is sucked from the air suction pipe, and the communication duct and An air blower that is blown toward the liquid surface through an air blowing pipe, forms a surface flow with the suspended matter on the liquid surface, flows into the air suction pipe, and forms a circulating air flow; A blow-off device for floating liquids. (2) The air suction pipe and the air blowing pipe are provided in a space between the lid or the upper floor slab and the liquid level in the case where the liquid level is covered with a lid or in a culvert, and the air suction pipe and the air blowing are provided. The liquid floating substance according to (1) , wherein the pipes are connected by a communication duct extending through the lid or the upper slab, and a blower for forming a circulating flow of the air is provided in the communication duct. Blower device. (3) Adjustment means is provided for adjusting the distance between the air outlet provided in the air outlet tube and the liquid surface and the angle of air blown from the air outlet tube toward the liquid surface. (1) or (2) above, wherein the apparatus for floating a liquid surface is blown. (4) The above (1) is not provided, wherein the settling tank or the storage tank provided with a scraper is provided in an upper space portion above the liquid level.
Fukiyose device to the liquid surface suspended matter according to any one of (3). (5) The wake of the air outlet pipe in the moving direction of the suspended matter on the liquid surface
Blow air upward below the liquid level on the side for stirring.
(1 ) No air outlet is provided.
(4) The apparatus for blowing liquid surface floating substances according to any one of (4) and (4).
【０００８】[0008]
【作用】空気吹出し管から液面に向かって空気を吹出し
て液面に浮遊する固形物を到達目的位置まで移動する液
面浮遊物吹寄せ装置の、前記浮遊物の到達目的位置また
は該到達目的位置の、浮遊物移動方向後流側の上部空間
部に空気吸込管を設け、該空気吸込管と前記空気吹出し
管とを連通ダクトで連結し、該連通ダクトに送風機を設
けたことにより、前記空気吸込管から吸引され、連通ダ
クトを経て空気吹出し管に至り、該空気吹出し管から液
面に向かって吹き出され、該液面に浮遊物を伴った表層
流を形成して前記空気吸込管に流入する空気の循環流を
形成することができるので、液面浮遊物は沈降すること
なく、前記表層流に伴って到達目的位置まで移動する。The above-mentioned target position of the floating substance or the target position of the liquid surface floating substance blowing device which blows air from the air blowing pipe toward the liquid surface and moves the solid floating on the liquid surface to the target position. The air suction pipe is provided in an upper space portion on the downstream side of the suspended matter moving direction, the air suction pipe and the air blowing pipe are connected by a communication duct, and a blower is provided in the communication duct. The air is sucked from the suction pipe, reaches the air blowing pipe through the communication duct, is blown out toward the liquid surface from the air blowing pipe, forms a surface flow with suspended matter on the liquid surface, and flows into the air suction pipe. Since the circulating flow of flowing air can be formed, the floating material on the liquid surface moves to the destination position with the surface flow without settling.
【０００９】本発明において、液面は、特定の液面に限
定されるものではない。本発明の液面浮遊物の吹寄せ装
置は、例えば下水または廃水処理場施設等における導水
渠、沈澱池、貯溜槽等に適用されるが、食品加工分野に
おける溜池、タンク等にも適用できる。この液面浮遊物
の吹寄せ装置は、蓋で覆われた、いわゆる有蓋施設に適
用した場合にその効果が顕著に現れる。すなわち、有蓋
施設に適用した場合は、外部への空気の流出入がなく、
内部空気のみが強制循環されるので、有蓋施設内の臭
気、危険ガス等の外部への漏出が防止される。In the present invention, the liquid level is not limited to a specific liquid level. The apparatus for blowing out liquid suspended matter according to the present invention is applied to, for example, headraces, sedimentation basins, storage tanks and the like in sewage or wastewater treatment plant facilities, but can also be applied to reservoirs and tanks in the food processing field. The effect of the blow-off device for floating liquids is remarkably exhibited when applied to a so-called covered facility covered with a lid. In other words, when applied to a covered facility, there is no outflow or inflow of air to the outside,
Since only the internal air is forcibly circulated, leakage of odor, dangerous gas and the like in the covered facility to the outside is prevented.
【００１０】本発明において、空気吸込管とは、導水
渠、沈澱池等の液面の上部空間部に設けられ、液面上の
空気を吸引するものである。空気吹出し管とは、前記空
気吸込管の空気吸込口に対応する空気吹出し口を有する
もので、前記空気吸込管とは平面図上、浮遊物の到達目
的位置を挟んで、前記導水渠、沈澱池等の液面の上部空
間部に設けられる。空気吸込管を、平面図上、前記浮遊
物の到達目的位置と重なる位置に設けてもよい。In the present invention, the air suction pipe is provided in a space above a liquid surface such as a headrace or a sedimentation basin, and sucks air on the liquid surface. The air discharge pipe has an air discharge port corresponding to the air suction port of the air suction pipe. It is provided in the upper space of the liquid surface such as a pond. The air suction pipe may be provided at a position overlapping the destination position of the suspended matter in a plan view.
【００１１】本発明において、浮遊物の到達目的位置と
は、液面に浮遊する固形物、例えばスカム等を吹き寄せ
る目的位置をいい、例えば浮遊物回収装置における浮遊
物の流入口、トラフ等の設置場所をいう。送風機とは、
前記空気吸込管と空気吹出し管とを連結する連通ダクト
に設けられ、前記空気吸込管から吸引した液面上の空気
を連通ダクトを介して前記空気吹出し管から、所定角度
で液面に向かって吹出し、該液面に浮遊物を伴った表層
流を形成して前記空気吸込管に流入する空気の循環流を
形成するものである。In the present invention, the target position of the suspended matter refers to a target position where a solid substance floating on the liquid surface, for example, scum, is blown. Refers to the installation location. What is a blower?
A communication duct that connects the air suction pipe and the air blowing pipe is provided, and air on the liquid surface sucked from the air suction pipe is directed toward the liquid surface at a predetermined angle from the air blowing pipe through the communication duct. The air is blown out to form a surface flow with suspended matter on the liquid surface to form a circulating flow of the air flowing into the air suction pipe.
【００１２】本発明において、液面が蓋で覆われている
場合、例えば暗渠等においては、前記空気吸込管と空気
吹出し管は、蓋と液面とで囲まれた空間部に設けられ
る。設置場所が暗渠等の末端部である場合は、前記空気
吸込管を前記末端部に沿って設けることが好ましい。こ
れによって、蓋と液面との間の空間部内における空気の
乱流を未然に防止することができる。空気吸込管と空気
吹出し管との間隔は特に限定されず、その間に前記浮遊
物の到達目的位置が位置するように適宜選択される。In the present invention, when the liquid surface is covered with a lid, for example, in a culvert or the like, the air suction pipe and the air blowing pipe are provided in a space surrounded by the lid and the liquid surface. When the installation location is at the end of a culvert or the like, it is preferable to provide the air suction pipe along the end. Thus, turbulent air flow in the space between the lid and the liquid surface can be prevented. The distance between the air suction pipe and the air discharge pipe is not particularly limited, and is appropriately selected such that the target position of the suspended matter is located therebetween.
【００１３】本発明において、浮遊物の到達目的位置ま
での距離が長い場合、または浮遊物の収集領域が広い場
合は、空気吸込管および／または空気吹出し管を複数段
もしくは複数列設けることが好ましい。また、送風機の
循環空気の流量調節手段としてインバータ（回転数制御
装置）を用いることもできる。これにより、浮遊物の種
類、質、量等の変化に対して適切な液面表層流を形成
し、かつ最適な表層流流速を得るための風量調整が容易
となる。In the present invention, when the distance of the suspended matter to the destination position is long, or when the collection area of the suspended matter is wide, it is preferable to provide a plurality of stages or rows of air suction pipes and / or air blowing pipes. . Further, an inverter (rotational speed control device) can be used as a means for adjusting the flow rate of the circulating air of the blower. Thereby, it becomes easy to form a liquid surface layer flow appropriate for changes in the type, quality, quantity, etc. of the suspended matter, and to easily adjust the air volume for obtaining an optimal surface flow velocity.
【００１４】本発明において、空気吹出し管の吹出し口
と液面との間隔を調節する調節手段および吹出し空気の
角度調節手段を設けることが好ましい。これによって空
気の吹出し条件を適宜選択することにより、浮遊物の沈
降量を最小限とすることができる。空気吹出し管の吹出
し口と液面との間隔調節手段としては、例えば空気吹出
し管が設けられたダクトまたは空気吹出し管を液面に向
かって伸張または短縮させる装置があげられる。また空
気吹出し角度の調節手段としては、例えば空気吹出し管
に設けられた空気吹出し口を旋回可能とし、該空気吹出
し口を旋回して前記液面との角度を可変する装置があげ
られる。空気吹出し管またはその先端部に設けられた空
気吹出し口を着脱可能な構造とすることにより、装置設
置後の改良または変更等が容易となる。In the present invention, it is preferable to provide adjusting means for adjusting the distance between the outlet of the air blowing pipe and the liquid surface and means for adjusting the angle of the blown air. Thus, by appropriately selecting the air blowing conditions, the amount of suspended matter settled can be minimized. As a means for adjusting the distance between the outlet of the air outlet pipe and the liquid surface, for example, a duct provided with the air outlet pipe or a device for extending or shortening the air outlet pipe toward the liquid level can be mentioned. Further, as the means for adjusting the air blowing angle, for example, there is a device capable of turning an air blowing port provided in an air blowing pipe and turning the air blowing port to change an angle with the liquid surface. By making the air blowout pipe or the air blowout port provided at the tip thereof detachable, improvement or change after installation of the apparatus becomes easy.
【００１５】本発明の液面浮遊物の吹寄せ装置は、例え
ば４軸式掻寄機、堰、スキマーまたは他の浮遊物回収装
置等と組み合わせることにより、浮遊物の移動または収
集効率が向上するとともに、吹寄せ装置、回収装置をは
じめとする関連機器を集中稼動することにより、消費電
力量等を節約することができる。The apparatus for blowing floats of the liquid surface of the present invention can improve the efficiency of moving or collecting floats by combining it with, for example, a four-shaft scraper, a weir, a skimmer, or another float recovery device. By intensively operating related devices such as a blower and a recovery device, power consumption and the like can be reduced.
【００１６】[0016]
【実施例】次に本発明を実施例によりさらに詳細に説明
する。図１および図２は、それぞれ本発明の一実施例を
示す液面浮遊物吹寄せ装置の説明図であり、図１はその
平面図、図２は断面図である。図において、この装置
は、暗渠１の上部壁１４で覆われた液面２の上部空間部
１５に配置された空気吹出し管８と、該空気吹出し管８
に取り付けられた空気吹出し口９とを有し、浮遊物１０
の到達目的位置（以下、浮遊物回収用トラフまたは単に
トラフという）１１の後流の、末端壁１３に沿った上部
空間部１５に空気吸込口４を有する空気吸込管３を設
け、該空気吸込管３と、前記空気吹出し管８とを、それ
ぞれ前記上部壁１４を貫通して延びる吸込側ダクト５と
吹出し側ダクト７で構成される連通ダクトで連結し、こ
の連通ダクトに、前記空気吸込管３の空気吸込口４から
吸引され、前記連通ダクトおよび空気吹出し管８を経て
空気吹出し口９から前記液面２に向かって吹き出され、
該液面２に、浮遊物１０を伴う表層流を形成して前記空
気吸込管３の空気吸込口４に流入する空気１６の循環流
を形成する送風機６を設けたものである。１２は、暗渠
１の側壁である。Next, the present invention will be described in more detail with reference to examples. FIG. 1 and FIG. 2 are explanatory views of a liquid level floating object blowing apparatus showing an embodiment of the present invention, FIG. 1 is a plan view thereof, and FIG. 2 is a sectional view thereof. In the figure, the apparatus comprises an air outlet pipe 8 disposed in an upper space 15 of a liquid level 2 covered by an upper wall 14 of a culvert 1, and an air outlet pipe 8.
And an air outlet 9 attached to the
The air suction pipe 3 having the air suction port 4 is provided in the upper space 15 along the end wall 13 downstream of the arrival destination position 11 (hereinafter referred to as a suspended matter collection trough or simply a trough). The pipe 3 and the air outlet pipe 8 are connected by a communication duct composed of a suction side duct 5 and a blow side duct 7 extending through the upper wall 14, respectively, and the air suction pipe is connected to the communication duct. 3, the air is sucked from the air suction port 4 and is blown out from the air outlet 9 toward the liquid level 2 through the communication duct and the air blowing pipe 8,
An air blower 6 is provided on the liquid surface 2 for forming a surface flow with a floating substance 10 to form a circulating flow of the air 16 flowing into the air suction port 4 of the air suction pipe 3. 12 is a side wall of the culvert 1.
【００１７】このような構成において、浮遊物１０の吹
寄せは、次のように行われる。すなわち、送風機６を稼
動して空気吸込口４から液面２の上部空間部の空気１６
が吸引される。吸引された空気１６は、空気吸込管３、
吸込側ダクト５および吹出し側ダクト７からなる連通ダ
クトを経て空気吹出し管８に流入し、該空気吹出し管８
の空気吹出し口９から所定吐出量、例えば１２〜１８ｍ
3／ｍｉｎ、所定風速、例えば２５〜３７ｍ／ｓｅｃで
液面２に対して所定角度、例えば５〜１５度で吹き出さ
れ、液面２に、浮遊物１０を伴ってトラフ１１方向に向
かう表層流を形成して後流の前記空気吸込口４に流入す
る循環流となる。浮遊物１０は、前記表層流に伴ってト
ラフ１１にスムーズに流入する。In such a configuration, the blowing of the floating matter 10 is performed as follows. That is, by operating the blower 6, the air 16 in the upper space above the liquid level 2 flows from the air suction port 4.
Is sucked. The sucked air 16 is supplied to the air suction pipe 3,
The air flows into the air blowing pipe 8 via a communication duct including the suction side duct 5 and the blowing side duct 7, and is connected to the air blowing pipe 8.
A predetermined discharge amount, for example, 12 to 18 m from the air outlet 9 of
3 / min, a predetermined wind speed, for example, 25 to 37 m / sec, is blown out at a predetermined angle, for example, 5 to 15 degrees, with respect to the liquid surface 2, and the surface flow toward the trough 11 along with the floating substance 10 on the liquid surface 2. To form a circulating flow flowing into the downstream air suction port 4. The suspended matter 10 smoothly flows into the trough 11 with the surface flow.
【００１８】本実施例によれば、暗渠１の液面２と上部
壁１４の間の上部空間部１５に、空気吹出し管８と空気
吸込管３を設け、これを上部壁１４を貫通する連通ダク
トで連結し、該連通ダクトに送風機６を設けたことによ
り、前記空気吸込管３から吸引され、連通ダクト６およ
び空気吹出し管８を経て液面２に向かって吹き出され、
該液面に浮遊物１０を伴う表層流を形成して再度前記空
気吸込管３に戻る空気１６の循環流が形成されるので、
前記液面に形成される表層流によって浮遊物１０をスム
ーズにトラフ１１まで吹寄せることができる。According to the present embodiment, the air outlet pipe 8 and the air suction pipe 3 are provided in the upper space 15 between the liquid level 2 of the culvert 1 and the upper wall 14, and communicate with each other through the upper wall 14. By being connected by a duct and providing a blower 6 to the communication duct, the air is sucked from the air suction pipe 3 and is blown out toward the liquid level 2 through the communication duct 6 and the air blowing pipe 8.
A circulating flow of the air 16 returning to the air suction pipe 3 is formed by forming a surface flow with the suspended matter 10 on the liquid level,
The suspended matter 10 can be smoothly blown to the trough 11 by the surface flow formed on the liquid surface.
【００１９】本実施例によれば、外部と遮断された上部
空間部１５と連通ダクトとで構成される流路内に空気の
循環流が形成されるので、液面または浮遊物から発生す
る不快臭気、危険ガス等の外部への漏出を防止できると
ともに、空気の吸入および吹出しによる騒音の拡散を防
止することができる。また、前記上部空間部１５におい
て、送風機による強制循環流とすることにより発生する
風洞効果によって表層流を相乗的に促進することができ
るので、浮遊物１０の吹寄せ効果が向上する。また、暗
渠１の末端部に空気吸込管３を設けたことにより、前記
空気循環流の乱れを防止してより安定させることができ
る。According to the present embodiment, since a circulating air flow is formed in the flow path constituted by the upper space portion 15 and the communication duct which are isolated from the outside, the unpleasantness generated from the liquid level or suspended matter is generated. Leakage of odors, dangerous gases, etc. to the outside can be prevented, and diffusion of noise due to inhalation and blowing of air can be prevented. Further, in the upper space portion 15, the surface flow can be synergistically promoted by the wind tunnel effect generated by the forced circulation flow by the blower, so that the blowing effect of the floating material 10 is improved. In addition, the provision of the air suction pipe 3 at the end of the underdrain 1 prevents turbulence in the air circulation flow and makes it more stable.
【００２０】本実施例によれば、空気流、すなわち風力
のみを浮遊物に作用させることにより、浮力が小さい浮
遊物であっても沈降させることなく、目的位置まで吹き
寄せることができる。本実施例において、液面２と空気
吸込口４との間隔は、３００〜１０００ｍｍ、好ましく
は４００〜５００ｍｍである。１０００ｍｍを越えると
循環流の乱れが発生し易くなり、３００ｍｍ未満でも循
環流が乱れることがある。空気吹出し口９と液面２との
間隔は１００〜３００ｍｍ、好ましくは１５０〜２００
ｍｍである。３００ｍｍを越えると吹寄せ効果が低下す
ることがあり、１００ｍｍ未満では浮遊物の沈降が生じ
ることがある。また、空気吹出し口９からの空気吹出し
角度θは、５〜１５度が好ましく、特に１０〜１５度が
好ましい。５度よりも小さいと吹寄せ効果が低下し易
く、１５度よりも大きいと浮遊物の沈降が大きくなり易
い。また、１０度よりも大きく１５度よりも小さければ
表層流が安定するのでより好ましい。According to this embodiment, only the air flow, that is, the wind force acts on the floating substance, so that even a floating substance having a small buoyancy can be blown to the target position without sinking. In this embodiment, the distance between the liquid surface 2 and the air inlet 4 is 300 to 1000 mm, preferably 400 to 500 mm. If it exceeds 1000 mm, turbulence of the circulating flow tends to occur, and if it is less than 300 mm, the circulating flow may be turbulent. The distance between the air outlet 9 and the liquid surface 2 is 100 to 300 mm, preferably 150 to 200 mm.
mm. If it exceeds 300 mm, the blowing effect may be reduced, and if it is less than 100 mm, sedimentation of suspended matter may occur. Further, the air blowing angle θ from the air blowing port 9 is preferably 5 to 15 degrees, particularly preferably 10 to 15 degrees. If it is smaller than 5 degrees, the blowing effect tends to be reduced, and if it is larger than 15 degrees, the sedimentation of suspended matters tends to be large. It is more preferable that the flow rate is larger than 10 degrees and smaller than 15 degrees because the surface flow is stabilized.
【００２１】空気吹出し口９から吹き出される空気の吐
出量は、１２〜１８ｍ3／ｍｉｎ、好ましくは１３〜１
７ｍ3／ｍｉｎである。１８ｍ3／ｍｉｎを越えると浮遊
物の沈降が大となり易く、１２ｍ3／ｍｉｎ未満である
と吹寄せ効果が低下する。また、空気吹出し口９から吹
き出される空気の風速は、２５〜３７ｍ／ｓｅｃ、好ま
しくは２７〜３４ｍ／ｓｅｃである。３７ｍ／ｓｅｃを
越えると浮遊物の沈降が大となり易く、２５ｍ／ｓｅｃ
未満では吹寄せ効果が低下する。The amount of air blown out from the air blow-out port 9 is 12 to 18 m 3 / min, preferably 13 to 1 m 3 / min.
7 m 3 / min. If it exceeds 18 m 3 / min, the sedimentation of suspended matter tends to be large, and if it is less than 12 m 3 / min, the blowing effect is reduced. The wind speed of the air blown from the air outlet 9 is 25 to 37 m / sec, and preferably 27 to 34 m / sec. If it exceeds 37 m / sec, the sedimentation of suspended matter tends to be large, and 25 m / sec.
If less, the blowing effect is reduced.
【００２２】図３および図４は、本発明の他の実施例を
示すもので、液面浮遊物吹寄せ装置を４軸式掻寄機と組
み合わせ、蓋で覆われた沈澱池に適用したものである。
この液面浮遊物吹寄せ装置は、蓋３４で覆われた沈澱池
２１の水面２２の上部空間部３９に配置された、空気吹
出し口２９を備えた空気吹出し管２８を有し、浮遊物３
０の到達目的位置（以下、浮遊物回収用トラフまたは単
にトラフという）３１の後流の末端壁３３に沿ってその
上部空間部３９に空気吸込口２４を有する空気吸込管２
３を設け、この空気吸込管２３と、前記空気吹出し管２
８とを、それぞれ蓋３４を貫通して延びる吸込側ダクト
２５と吹出し側ダクト２７とで構成される連通ダクトで
連結し、この連通ダクトに、前記空気吸込口２４から吸
引され、空気吸込管２３、連通ダクトおよび空気吹出し
管２８を経て空気吹出し口２９から水面２２に向かって
吹き出され、該水面２２に浮遊物３０を伴う表層流を形
成して前記空気吸込口２４に流入する空気４０の循環流
を成形する送風機２６を設けたものである。一方、４軸
式掻寄機３８は、前記蓋３４で覆われた沈澱池２１の水
面２２下に埋設された４個のシャフト（２個は図示省
略）にそれぞれ取り付けられた４個のスプロケット（２
個は図示省略）３５と、これら４個のスプロケットに架
設されたチェーン３６と、該チェーン３６に所定間隔で
設けられた複数のフライト３７とから主として構成され
ている。FIG. 3 and FIG. 4 show another embodiment of the present invention, in which a floating surface blowing device is combined with a 4-axis scraper and applied to a sedimentation basin covered with a lid. is there.
The apparatus for blowing out liquids on the liquid level has an air blow-out pipe 28 having an air blow-out port 29 disposed in an upper space portion 39 of the water surface 22 of the sedimentation basin 21 covered with the lid 34.
The air suction pipe 2 having the air suction port 24 in the upper space portion 39 thereof along the end wall 33 downstream of the arrival destination position 31 (hereinafter referred to as a suspended matter collection trough or simply a trough) 31.
3 and the air suction pipe 23 and the air blowing pipe 2
8 are connected to each other by a communication duct composed of a suction side duct 25 and a blow side duct 27 each extending through the lid 34, and the air suction pipe 23 sucks the air suction pipe 23 from the air suction port 24. The air 40 is blown out from the air outlet 29 through the communication duct and the air outlet pipe 28 toward the water surface 22, forms a surface flow with the suspended matter 30 on the water surface 22, and circulates the air 40 flowing into the air inlet 24. A blower 26 for forming a flow is provided. On the other hand, the four-shaft scraper 38 has four sprockets (two are not shown) buried under the water surface 22 of the sedimentation basin 21 covered with the lid 34, respectively. 2
(Not shown), a chain 36 extending over these four sprockets, and a plurality of flights 37 provided at predetermined intervals on the chain 36.
【００２３】このような構成において、沈澱池２１の水
面２２に浮遊する浮遊物３０の回収は次のように行われ
る。すなわち、図示省略した駆動装置によって掻寄機３
８が駆動され、チェーン３７が矢印Ａ方向に回転する
と、該チェーン３７に取り付けられたフライト３８が液
面２２に沿って移動し、浮遊物３０をトラフ３１方向に
掻寄せる。掻寄機３８のチェーン３７はスプロケット３
５ａを通過した後、沈澱池２１の底部に向かって進行す
るために、スプロケット３５ａの上部まで掻寄せられた
浮遊物３０の移動速度は小さくなるが、このときスプロ
ケット３５ａの上部近傍に設けられた空気吹出し管２８
の空気吹出し口２９から水面２２に向かって所定角度、
例えば５〜１５度で吹き出される空気４０によって吹寄
せられるので、浮遊物３０はスムーズにトラフ３１まで
移動して回収される。In such a configuration, the suspended matter 30 floating on the water surface 22 of the sedimentation basin 21 is recovered as follows. That is, the scraping machine 3 is driven by a driving device (not shown).
When the chain 8 is driven and the chain 37 rotates in the direction of the arrow A, the flight 38 attached to the chain 37 moves along the liquid surface 22 and scrapes the suspended matter 30 toward the trough 31. The chain 37 of the scraper 38 is a sprocket 3
After passing through 5a, the traveling speed of the suspended matter 30 raked to the upper part of the sprocket 35a becomes lower because it proceeds toward the bottom of the sedimentation basin 21, but at this time, the suspended matter 30 is provided near the upper part of the sprocket 35a. Air outlet pipe 28
A predetermined angle from the air outlet 29 toward the water surface 22,
For example, since the floating matter 30 is blown by the air 40 blown at 5 to 15 degrees, the suspended matter 30 smoothly moves to the trough 31 and is collected.
【００２４】浮遊物３０を吹寄せた空気４０は、前記ト
ラフ３１の後流に設けられた空気吸込口２４から吸引さ
れ、吸込側ダクト２５、送風機２６、吹出し側ダクト２
７を経て空気吹出し管２８に達し、空気吹出し口２９か
ら再度水面２２に向かって吹き出される循環流となり、
前記掻寄機３８で順次掻寄られる浮遊物３０をトラフ３
１に向かって吹き寄せる。The air 40 that has blown the suspended matter 30 is sucked through an air suction port 24 provided downstream of the trough 31, and the suction duct 25, the blower 26, and the blow duct 2
7, the air reaches the air outlet pipe 28, and is circulated from the air outlet 29 toward the water surface 22 again.
The floating material 30 sequentially scraped by the scraper 38 is trough 3
Blow towards 1
【００２５】本実施例によれば、浮遊物吹寄せ装置と４
軸式掻寄機とを組合せ、４軸式掻寄機のリターン側フラ
イトの水没位置近傍に浮遊物吹寄せ装置の空気吹出し管
２８を設けたことにより、リターン側フライトが掻寄せ
た浮遊物３０を前記フライト３７の水没後も拡散させる
ことなく、トラフ３１方向に吹き寄せることができるの
で、浮遊物の回収効率が向上する。According to the present embodiment, the floating material blowing device and 4
In combination with the shaft type scraper, the air blowing pipe 28 of the floating object blowing device is provided in the vicinity of the submerged position of the return flight of the 4-axis type scraper, so that the floating material 30 scraped by the return flight can be removed. Even after the flight 37 is submerged, it can be blown toward the trough 31 without being diffused, so that the efficiency of collecting suspended matters is improved.
【００２６】本実施例によれば、蓋で覆われた沈澱池２
１の上部空間３９と、連通ダクトとで構成される循環流
路に空気の循環流を形成することができるので、前記上
部空間３９において、送風機による強制循環流とし、さ
らに蓋で覆われているため外乱が防止されるので、風洞
効果により表層流を相乗的に促進することができるの
で、浮遊物３０の吹寄せ効果が向上する。また装置内、
例えば下水または内部空気４０の臭気等が外部に漏洩す
ることもない。According to this embodiment, the sedimentation basin 2 covered with the lid
Since a circulating flow of air can be formed in a circulating flow path formed by the upper space 39 and the communication duct, the upper space 39 is forcedly circulated by a blower and is further covered with a lid. Therefore, disturbance is prevented, and the surface flow can be synergistically promoted by the wind tunnel effect, so that the blowing effect of the floating matter 30 is improved. Also inside the device,
For example, the odor of the sewage or the internal air 40 does not leak to the outside.
【００２７】図５および図６は、本発明の別の実施例を
示す説明図であり、図５はその平面図、図６は断面図で
ある。この液面浮遊物の吹寄せ装置は、浮遊物の移送距
離、すなわち、吹寄せ距離が長い場合に適用されるもの
であり、図１および２に示した実施例の吹出し側ダクト
７を分岐して分岐ダクト１７ａおよび１７ｂとし、該分
岐ダクト１７ａおよび１７ｂにそれぞれ電動ダンパー１
８ａおよび１８ｂを設けるとともに、先端部にそれぞれ
空気吹出し管８ａおよび８ｂを設けて二段に配置したも
のである。FIGS. 5 and 6 are explanatory views showing another embodiment of the present invention. FIG. 5 is a plan view and FIG. 6 is a sectional view. This apparatus for blowing the floating substance on the liquid surface is applied when the transfer distance of the floating substance, that is, the blowing distance is long, and branches off the outlet side duct 7 of the embodiment shown in FIGS. Ducts 17a and 17b, and the branch ducts 17a and 17b
8a and 18b are provided, and air outlet pipes 8a and 8b are provided at the end portions, respectively, and are arranged in two stages.
【００２８】本実施例によれば、空気吹出し管８ｂの空
気吹出し口９ｂから吹き出される空気１６によって液面
に形成される、浮遊物１０を伴う表層流の流速が小さく
なる直前に空気吹出し管８ａの空気吹出し口９ａから空
気１６が吹き出され、これによって前記表層流の流速が
回復または増大されるので、浮遊物１０の吹寄せ距離が
長くても、移動速度を低下することなく、スムーズに吹
き寄せることができる。According to the present embodiment, the air blowing pipe is formed immediately before the flow velocity of the surface flow accompanied by the suspended matter 10 formed on the liquid surface by the air 16 blown out from the air blowing port 9b of the air blowing pipe 8b becomes small. The air 16 is blown out from the air outlet 9a of the air 8a, thereby recovering or increasing the flow velocity of the surface flow. Therefore, even if the floating distance of the floating material 10 is long, the floating flow is smoothly blown down without lowering the moving speed. Can be
【００２９】本実施例によれば、前記電動ダンパー１８
ａおよび１８ｂを適宜操作するとこにより、空気の吹出
し管を順次切り換えて浮遊物を効率よく吹き寄せること
ができる。空気吹出し管８は、３段またはそれ以上であ
ってもよい。図７および図８は、本発明のもう一つの別
の実施例を示す説明図であり、図７はその平面図、図８
は断面図である。この液面浮遊物吹寄せ装置は、幅の広
い沈澱池に適用されるものであり、図３および図４の浮
遊物吹寄せ装置と異なる点は、沈澱池２１の幅が広く、
該沈澱池２１の末端壁３３に沿って液面２２と蓋３４の
間の上部空間部３９に、空気吸込口２４ａ〜ｃをそれぞ
れ有する空気吸込管２３ａ〜ｃを連設し、該空気吹込管
２３ａ〜ｃと浮遊物回収用トラフ３１を挟んで対向する
位置に、空気吹出し口２９ａ〜ｃをそれぞれ有する空気
吹出し管２８ａ〜ｃを連設し、前記空気吸込管２３ａ〜
ｃに対応して吸込側ダクト２５を分岐し、該分岐した分
岐ダクト４１ａ〜ｃに電動ダンパー４３ａ〜ｃを設ける
とともに、前記空気吹出し管２８ａ〜ｃに対応して吹出
し側ダクト２７を分岐し、該分岐ダクト４２ａ〜ｃにそ
れぞれ電動ダンパー４３ｄ〜ｆを設けたものである。According to this embodiment, the electric damper 18
By appropriately operating a and 18b, a floating substance can be efficiently blown by sequentially switching the air blowing pipes. The air blowing pipe 8 may have three stages or more. FIGS. 7 and 8 are explanatory views showing another embodiment of the present invention. FIG.
Is a sectional view. This liquid floating substance blowing device is applied to a wide sedimentation basin. The difference from the floating material blowing device of FIGS. 3 and 4 is that the width of the sedimentation basin 21 is wide,
Air suction pipes 23a to 23c each having air suction ports 24a to 24c are connected to an upper space 39 between the liquid surface 22 and the lid 34 along the end wall 33 of the settling basin 21, and the air blowing pipes are provided. Air outlet pipes 28a to 28c having air outlets 29a to 29c, respectively, are provided at positions facing each other with the suspended matter collecting trough 31 interposed therebetween and the air suction pipes 23a to 23c.
c, the suction side duct 25 is branched, the branch ducts 41a to 41c are provided with electric dampers 43a to 43c, and the outlet ducts 27 are branched corresponding to the air blowing pipes 28a to 28c. The branch ducts 42a to 42c are provided with electric dampers 43d to 43d, respectively.
【００３０】本実施例によれば、幅が広い沈澱池であっ
ても全水面２２上に空気１６の循環流を形成して水面２
２上に浮遊物３０を伴う表層流を形成することができる
ので、水面２２に浮遊する全ての浮遊物３０を効率よく
トラフ３１まで吹き寄せることができる。また、連設さ
れた空気吸込管および空気吹出し管に対応するようにそ
れぞれ電動ダンパー４３ａ〜ｆを設けたことにより、各
電動ダンパーを適宜操作することにより、各空気吸込管
および空気吹出し管を順次切り換えて浮遊物３０を効率
よく吹寄せることができる。According to this embodiment, even in the case of a wide sedimentation basin, a circulating flow of air 16 is formed
Since a superficial flow with the suspended matter 30 can be formed on the surface 2, all the suspended matter 30 floating on the water surface 22 can be efficiently blown to the trough 31. Further, by providing the electric dampers 43a to 43f so as to correspond to the air suction pipes and the air blowing pipes connected in series, the respective air suction pipes and the air blowing pipes are sequentially operated by appropriately operating the electric dampers. By switching, the floating matter 30 can be efficiently blown.
【００３１】本実施例において、空気吸込管および空気
吹出し管の数をそれぞれ３個としたが、４個またはそれ
以上であってもよく、また吸込側ダクト２５および吹出
し側ダクト２７を各吸込管および吹出し管毎に独立に設
けてもよい。図９および図１０は、本発明のさらにもう
一つの別の実施例を示す説明図であり、図９は平面図、
図１０は断面図である。この装置は、液面に浮遊する浮
遊物量が多く、しかも圧密している場合に好適に適用さ
れるものであり、図１および図２に示した装置の、吹出
し側ダクト７を二つに分岐して分岐ダクト１７ａおよび
１７ｂとし、浮遊物移動方向前流側の分岐ダクト１７ｂ
の先端部に、空気吹出し口９ｂを有する空気吹出し管８
を設けるとともに、浮遊物移動方向後流側の分岐ダクト
１７ａを沈澱池１の水面下効果的位置まで延長し、該延
長した分岐ダクト１７ａの先端部に、上方に向かって空
気１６を吹き出す攪拌用吹出し口１９を設けたものであ
る。In this embodiment, the number of the air suction pipes and the number of the air discharge pipes are each three, but may be four or more, and the suction duct 25 and the discharge duct 27 may be connected to each suction pipe. And may be provided independently for each blowout pipe. 9 and 10 are explanatory views showing still another embodiment of the present invention. FIG. 9 is a plan view,
FIG. 10 is a sectional view. This device is suitably applied when the amount of suspended solids floating on the liquid surface is large and the material is compacted. The outlet side duct 7 of the device shown in FIGS. 1 and 2 is branched into two. Into branch ducts 17a and 17b, and branch duct 17b on the upstream side in the floating substance moving direction.
Air outlet pipe 8 having an air outlet 9b at the tip of
And a branch duct 17a on the downstream side of the suspended matter moving direction is extended to an effective position below the surface of the sedimentation basin 1, and air 16 is blown upward to the tip of the extended branch duct 17a. An outlet 19 is provided.
【００３２】本実施例によれば、吹出し側分岐ダクト１
７ａを沈澱池１の水面下効果的位置まで延長し、その先
端部に攪拌用吹出し口１９を設けたことにより、該攪拌
用吹出し口１９から吹き出された空気１６の気泡２０に
より塊状の浮遊物を崩壊し、該崩壊した浮遊物１０を前
記分岐ダクト１７ｂの空気吹出し口９ｂから吹き出され
る空気によって効率よく吹き寄せることができる。According to the present embodiment, the outlet side branch duct 1
7a is extended to an effective position below the surface of the sedimentation basin 1 and a stirring outlet 19 is provided at the tip thereof, so that a lump of floating matter is formed by air bubbles 20 of the air 16 blown out from the stirring outlet 19. And the collapsed suspended matter 10 can be efficiently blown by the air blown out from the air outlet 9b of the branch duct 17b.
【００３３】本実施例において、吹寄せ距離が長いか、
または吹寄せ幅が広い場合は空気吹出し管および攪拌用
吹出し管をそれぞれ複数段または複数列設けることもで
きる。また、水のスプレー装置を併用することにより、
圧密した浮遊物の崩壊効果および吹寄せ効果を促進する
こともできる。なお、このときスプレー水量またはスプ
レー角度は、浮遊物を沈降させない範囲で適宜選択され
る。In this embodiment, whether the blowing distance is long or not
Alternatively, if the blowing width is wide, a plurality of air blowing tubes and a plurality of stirring blowing tubes may be provided. Also, by using a water spray device together,
It can also promote the collapse and blowing effects of the compacted float. At this time, the amount of spray water or the spray angle is appropriately selected within a range that does not cause the suspended matter to settle.
【００３４】[0034]
【発明の効果】本願の請求項１記載の発明によれば、液
面上に、浮遊物の到達目的位置を挟んで空気吸込管およ
び空気吹出し管を設け、これを連通ダクトで連結し、該
連通ダクトに空気を循環する送風機を設けたことによ
り、前記空気吹出し管から空気吸込管に向かう、乱れの
ない空気循環流が形成され、該循環流により液面に、浮
遊物の移動を伴う乱れのない表層流を形成することがで
きるので、この表層流によって液面浮遊物を沈降させる
ことなく到達目的位置まで吹き寄せることができる。According to the first aspect of the present invention, an air suction pipe and an air discharge pipe are provided on a liquid surface with a target position of a suspended substance interposed therebetween, and these are connected by a communication duct. By providing a blower that circulates air in the communication duct, an undisturbed air circulation flow is formed from the air blowing pipe toward the air suction pipe, and the circulating flow causes turbulence accompanied by the movement of suspended matter on the liquid surface. Since a surface flow having no flow can be formed, the surface flow can be blown up to the destination position without sinking the floating substance on the surface of the liquid.
【００３５】本願の請求項２記載の発明によれば、蓋ま
たは上床版で覆われた液面、例えば有蓋沈澱池、暗渠等
に前記空気吸込管および空気吹出し管を有する浮遊物吹
寄せ装置を適用したことにより、前記液面と蓋または上
床版との間の空間部を流通する、外部との出入りのない
空気循環流が形成されるで、上記発明の効果に加え、外
乱の影響を受けずに安定した表層流を形成し、浮遊物を
効率よく吹き寄せることができるうえ、浮遊物、液体等
から発生する不快臭気、危険ガス等および騒音の外部へ
の漏洩を防止することができる。従って、専用の脱臭装
置およびガス処理装置を設ける必要はない。According to the invention described in claim 2 of the present application, the floating material blowing device having the air suction pipe and the air blowing pipe is applied to a liquid surface covered with a lid or an upper deck, for example, a settling basin, a culvert, etc. By doing so, an air circulating flow that flows through the space between the liquid level and the lid or the upper floor slab and does not enter or leave the outside is formed, and in addition to the effects of the present invention, is not affected by disturbance. A stable surface flow can be formed, and floating substances can be blown efficiently, and an unpleasant odor, dangerous gas, and noise generated from floating substances, liquids, and the like can be prevented from leaking to the outside. Therefore, it is not necessary to provide a dedicated deodorizing device and gas processing device.
【００３６】本願の請求項３記載の発明によれば、空気
吹出し管の吹出し口と液面との間隔および空気吹出し角
度の調節手段を設けたことにより、前記発明の効果に加
え、浮遊物の種類、量、圧密の有無等の条件の相違に適
宜対応した空気吹出し条件を選択することができるの
で、浮遊物の沈降を極力少なくすることができる。本願
の請求項４記載の発明によれば、浮遊物の吹寄せ装置を
掻寄機と組み合わせたことにより、前記掻寄機の浮遊物
掻寄せ効果を補うことができるので、掻寄せ効率が向上
する。According to the invention of claim 3 of the present application, the provision of the means for adjusting the distance between the air outlet of the air blowing pipe and the liquid surface and the air blowing angle provides, in addition to the effects of the above invention, the effect of the suspended matter. Since air blowing conditions can be appropriately selected corresponding to differences in conditions such as type, amount, and presence or absence of consolidation, sedimentation of suspended matter can be minimized. According to the invention described in claim 4 of the present application, by combining the floating material blowing device with the scraping machine, the floating material scraping effect of the scraping machine can be supplemented, so that the scraping efficiency is improved. .
【図１】本発明の一実施例を示す説明図。FIG. 1 is an explanatory diagram showing one embodiment of the present invention.
【図２】図１の断面図。FIG. 2 is a sectional view of FIG.
【図３】本発明の他の実施例を示す説明図。FIG. 3 is an explanatory view showing another embodiment of the present invention.
【図４】図３の断面図。FIG. 4 is a sectional view of FIG. 3;
【図５】本発明の別の実施例を示す説明図。FIG. 5 is an explanatory view showing another embodiment of the present invention.
【図６】図５の断面図。FIG. 6 is a sectional view of FIG. 5;
【図７】本発明のもう一つの別の実施例を示す説明図。FIG. 7 is an explanatory view showing another embodiment of the present invention.
【図８】図７の断面図。FIG. 8 is a sectional view of FIG. 7;
【図９】本発明のさらに別の実施例を示す説明図。FIG. 9 is an explanatory view showing still another embodiment of the present invention.
【図１０】図９の断面図。FIG. 10 is a sectional view of FIG. 9;
【図１１】従来技術を示す説明図。FIG. 11 is an explanatory view showing a conventional technique.
１…暗渠、２…液面、３…空気吹込管、４…空気吹込
口、５…吸込側ダクト、６…送風機、７…吹出し側ダク
ト、８…空気吹出し管、９…空気吹出し口、１０…浮遊
物、１１…到達目的位置（トラフ）、１２…側壁、１３
…末端壁、１４…上部壁、１５…上部空間部、１６…空
気、１７ａ〜ｂ：分岐ダクト、１８ａ〜ｂ…電動ダンパ
ー、１９…攪拌用吹出し口、２１…沈澱池、２２…水
面、２３…空気吹込管、２４…空気吹込口、２５…吸込
側ダクト、２６…送風機、２７…吹出し側ダクト、２８
…空気吹出し管、２９…空気吹出し口、３０…浮遊物、
３１…到達目的位置（トラフ）、３２…側壁、３３…末
端壁、３４…蓋、３５…スプロケット、３６…チェー
ン、３７…フライト、３８…４軸式掻寄機、３９…上部
空間部、４０…空気。DESCRIPTION OF SYMBOLS 1 ... Culvert, 2 ... Liquid level, 3 ... Air blowing pipe, 4 ... Air blowing port, 5 ... Suction side duct, 6 ... Blower, 7 ... Blowing side duct, 8 ... Air blowing pipe, 9 ... Air blowing port, 10 … Floating material, 11… arrival destination position (trough), 12… side wall, 13
... End wall, 14 ... Top wall, 15 ... Top space, 16 ... Air, 17a-b: Branch duct, 18a-b ... Electric damper, 19 ... Agitating outlet, 21 ... Settling basin, 22 ... Water surface, 23 ... air blowing pipe, 24 ... air blowing port, 25 ... suction side duct, 26 ... blower, 27 ... blowing side duct, 28
... air outlet pipe, 29 ... air outlet, 30 ... floating matter,
31 ... destination position (trough), 32 ... side wall, 33 ... end wall, 34 ... lid, 35 ... sprocket, 36 ... chain, 37 ... flight, 38 ... 4-axis type scraper, 39 ... upper space, 40 …air.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 和智 和敏 東京都豊島区東池袋５−39−15 (72)発明者 大橋 剛昇 千葉県千葉市緑区椎名崎町918サンハイ ム水野102 (56)参考文献 特開 昭56−76291（ＪＰ，Ａ) 特開 平５−285475（ＪＰ，Ａ) 特開 昭54−96254（ＪＰ，Ａ) 実開 昭60−67190（ＪＰ，Ｕ) 実開 平３−123594（ＪＰ，Ｕ) 実開 昭59−102193（ＪＰ，Ｕ) 実開 昭59−97791（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.6，ＤＢ名) C02F 1/40 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kazutoshi Wachi 5-39-15 Higashiikebukuro, Toshima-ku, Tokyo (72) Inventor Gosho Nobashi 918 Sanheim Mizuno 102, 918 Shiinazaki-cho, Midori-ku, Chiba-shi, Chiba References JP-A-56-76291 (JP, A) JP-A-5-285475 (JP, A) JP-A-54-96254 (JP, A) Japanese Utility Model Application Sho 60-67190 (JP, U) Japanese Utility Model Application 3-123594 (JP, U) Fully open sho 59-102193 (JP, U) Fully open sho 59-97791 (JP, U) (58) Fields investigated (Int. Cl. 6 , DB name) C02F 1/40
Claims (5)
け、該空気吹出し管から前記液面に向かって所定角度で
空気を吹出して液面浮遊物を到達目的位置まで移動させ
る液面浮遊物の吹寄せ装置において、前記空気吹出し管
の前記液面に対する空気吹出し角度を５〜１５度とする
とともに該空気吹出し管を前記液面から１００〜３００
ｍｍの間隔を隔てた上部空間部に設け、前記浮遊物の到
達目的位置または該到達目的位置の後流側の前記液面か
ら３００〜１０００ｍｍの間隔を隔てた上部空間部に空
気吸込管を設け、該空気吸込管と前記空気吹出し管とを
連通ダクトで連結し、該連通ダクトに、前記空気吸込管
から吸引され、連通ダクトおよび空気吹出し管を経て前
記液面に向かって吹き出され、該液面に前記浮遊物を伴
った表層流を形成して前記空気吸込管に流入する、空気
の循環流を形成する送風機を設けたことを特徴とする液
面浮遊物の吹寄せ装置。An air blowing pipe is provided in a space above a liquid surface, and air is blown from the air blowing pipe toward the liquid surface at a predetermined angle to move a liquid floating substance to a destination position. In the apparatus for blowing articles, the air blowing pipe
The air blowing angle with respect to the liquid surface is 5 to 15 degrees
And the air outlet pipe is moved from the liquid level by 100 to 300
mm in the upper space part, the liquid surface on the downstream side of the target position of the floating substance or the target position
An air suction pipe is provided in an upper space partly separated by a distance of 300 to 1000 mm, and the air suction pipe and the air blowing pipe are connected by a communication duct. A blower is provided that forms a circulating flow of air that is blown toward the liquid surface through a duct and an air blowing pipe, forms a surface flow with the suspended matter on the liquid surface, and flows into the air suction pipe. A floating device for floating liquid surface.
渠における、前記蓋または上床版と液面との間の空間部
に前記空気吸込管および空気吹出し管を設け、該空気吸
込管と空気吹出し管を前記蓋または上床版を貫通して延
びる連通ダクトで連結し、該連通ダクトに、前記空気の
循環流を形成する送風機を設けたことを特徴とする請求
項１記載の液面浮遊物の吹寄せ装置。2. The air suction pipe and the air discharge pipe are provided in a space between the lid or the upper floor slab and the liquid level in a case where the liquid level is covered with a lid or in a culvert, and the air suction pipe is connected to the air suction pipe. The liquid surface floating according to claim 1, wherein an air blowing pipe is connected by a communication duct extending through the lid or the upper floor slab, and a blower for forming a circulating flow of the air is provided in the communication duct. Equipment for blowing objects.
し口と液面との間隔および前記空気吹出し管から液面に
向かって吹き出される空気の吹出し角度を調節する調節
手段を設けたことを特徴とする請求項１または２記載の
液面浮遊物の吹寄せ装置。3. An apparatus according to claim 1, further comprising adjusting means for adjusting a distance between an air outlet provided in the air outlet pipe and the liquid surface and an angle of air blown from the air outlet pipe toward the liquid surface. 3. The blower for a liquid surface suspended matter according to claim 1 or 2, wherein:
の液面の上部空間部に設けられたことを特徴とする請求
項１ないし３のいずれか記載の液面浮遊物の吹寄せ装
置。4. A Fukiyose apparatus of claims 1, characterized in that the raking machine is provided in the upper space part of the liquid surface of the sedimentation tank or reservoir provided liquid level floating matter according to any one of 3 .
方向後流側の液面下に、上方に向かって空気を吹き出すBlows air upward below the liquid level on the downstream side
攪拌用の空気吹出し口を設けたことを特徴とする請求項An air outlet for stirring is provided.
１ないし４のいずれかに記載の液面浮遊物の吹寄せ装A blow-in device for liquid suspended matter according to any one of 1 to 4 above.
置。Place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20726994A JP2892284B2 (en) | 1994-08-31 | 1994-08-31 | Blower for liquid suspended matter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20726994A JP2892284B2 (en) | 1994-08-31 | 1994-08-31 | Blower for liquid suspended matter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0871550A JPH0871550A (en) | 1996-03-19 |
| JP2892284B2 true JP2892284B2 (en) | 1999-05-17 |
Family
ID=16537002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20726994A Expired - Fee Related JP2892284B2 (en) | 1994-08-31 | 1994-08-31 | Blower for liquid suspended matter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2892284B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6060110B2 (en) * | 2014-05-21 | 2017-01-11 | 株式会社神鋼環境ソリューション | Scum crusher and digester equipped with the same |
| WO2022044564A1 (en) * | 2020-08-27 | 2022-03-03 | 宇都宮工業株式会社 | Compressed air ejecting mechanism, and conduit and sedimentation tank using same |
| BR112022025578A2 (en) * | 2020-09-17 | 2023-03-28 | Utsunomiya Kogyo Co Ltd | ADMISSION SYSTEM |
-
1994
- 1994-08-31 JP JP20726994A patent/JP2892284B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0871550A (en) | 1996-03-19 |
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