JP2546680Y2 - Sedimentation equipment - Google Patents
Sedimentation equipmentInfo
- Publication number
- JP2546680Y2 JP2546680Y2 JP2724991U JP2724991U JP2546680Y2 JP 2546680 Y2 JP2546680 Y2 JP 2546680Y2 JP 2724991 U JP2724991 U JP 2724991U JP 2724991 U JP2724991 U JP 2724991U JP 2546680 Y2 JP2546680 Y2 JP 2546680Y2
- Authority
- JP
- Japan
- Prior art keywords
- feed well
- sedimentation
- rake shaft
- tank
- plate
- 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 - Lifetime
Links
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案は沈殿装置に係り、詳しく
は、高効率で沈降分離することができる廃液、循環水、
工業用水、浄水等の用排水処理用の沈殿装置に係る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sedimentation apparatus, and more particularly, waste liquid, circulating water, which can be settled and separated with high efficiency.
The present invention relates to a sedimentation device for treating wastewater such as industrial water and purified water.
【０００２】[0002]
【従来の技術】鉄鋼業等あらゆる産業分野において、用
排水処理のための沈殿槽が設置されている。例えば、鉄
鋼業の表面処理設備からは金属も含有した廃液が発生す
る。2. Description of the Related Art In all industrial fields such as the steel industry, sedimentation tanks for treating wastewater are installed. For example, wastewater containing metals is generated from surface treatment equipment in the steel industry.
【０００３】この廃液は通常次のような方法により処理
されている。すなわち、金属（Ｍｅ）含有廃液にＣａ
（ＯＨ）2等を適宜投入し、Ｍｅ（ＯＨ）ｘの形態の金
属水酸化物を形成させて、沈殿槽で重力沈降分離させ
る。沈殿槽は一般に図２（ａ）ならびに（ｂ）に示す構
造を有している。[0003] This waste liquid is usually treated by the following method. That is, Ca (metal) is contained in the waste liquid containing metal (Me).
(OH) 2 or the like is appropriately charged to form a metal hydroxide in the form of Me (OH) x, and gravity sedimentation is performed in a sedimentation tank. The sedimentation tank generally has the structure shown in FIGS. 2 (a) and 2 (b).
【０００４】金属水酸化物含有廃液を流入管１からフィ
−ドウェル２に流入させ、整流板３で水の流れを整流さ
せ、放射方向に均一に流出させる。金属水酸化物は、フ
ィ−ドウェル２から放射方向に拡散していく間、その滞
留時間で重力沈降分離される。沈殿槽底部に沈降した金
属水酸化物は、レ−キ４ａで中心のコ−ン６に集められ
た後、汚泥引抜管７により引き抜かれ、脱水機で脱水さ
れ、再利用化または埋立処分される。The metal hydroxide-containing waste liquid flows from the inflow pipe 1 into the feed well 2, where the flow of water is rectified by the rectifying plate 3, and the water is uniformly discharged in the radial direction. The metal hydroxide is gravity sedimented during its residence time while diffusing radially from the feedwell 2. The metal hydroxide that has settled at the bottom of the sedimentation tank is collected by the rake 4a at the center cone 6, and then pulled out by the sludge drawing pipe 7, dewatered by the dehydrator, and recycled or landfilled. You.
【０００５】ところで、沈殿槽を使用していくと、整流
板３に金属水酸化物等のスケ−ルが固着化し、整流板３
とフィ−ドウェル２の隙間の間隔が場所によって異なっ
てくる。このため、フィ−ドウェル２からの放射方向の
流速が場所により異なり、ある一つの方向の流速が上昇
し、金属水酸化物が沈殿槽で沈殿せず、キャリイオ−バ
−し沈殿槽の機能を果たさなくなる。By the way, as the sedimentation tank is used, a scale such as a metal hydroxide adheres to the current plate 3 and the current plate 3
And the gap between the feed well 2 and the feed well 2 differ depending on the location. For this reason, the flow velocity in the radiation direction from the feed well 2 differs depending on the location, the flow velocity in one direction increases, and the metal hydroxide does not precipitate in the precipitation tank, but the carrier functions as a carrier and the function of the precipitation tank. Will not work.
【０００６】また、現状の方法では、沈殿槽を必要最小
理論半径よりも大きく設計しなければならず、建設費用
が大となるという問題があった。Further, in the current method, the sedimentation tank must be designed to be larger than the required minimum theoretical radius, and there is a problem that the construction cost becomes large.
【０００７】このような問題を解決する方法として従来
からいろいろ提案されている。例えば、実公昭６０−２
２９６２号公報には垂設する回転軸に掻寄機構を具備し
た汚泥掻寄機で、空気槽の浮力により汚泥掻寄機の構造
に掛る負荷を軽減し、汚泥掻寄機に対し自重による負荷
重量を減少させて作用すると共に、運転時の電力使用量
を低減するようにしたもの、また、実開平１−８９１１
号公報にはフィ−ドウェルにスカム排出口を形成すると
共に、フィ−ドウェル内で回転してフィ−ドウェル内の
スカムをスカム排出口から排出する回転ブレ−ドを回転
シャフトに取付けることにより、フィ−ドウェル内にス
カムが停留しないようにしたもの、また、特開昭５７−
９９３０５号公報には撹拌槽とスラッジ貯槽を整流板及
びスラッジ掻き寄せレ−キ付沈殿槽の中央位置に設けて
処理水の水平流速を半減させることにより、同じ沈殿槽
表面積で清澄能力を高めるようにしたものがある。これ
らいずれも汚泥掻寄をすることが可能ではあるが、これ
らの方法では十分な効果が得られない。Various methods have been conventionally proposed to solve such a problem. For example, Jiko 60-2
Japanese Patent No. 2962 discloses a sludge scraper provided with a scraping mechanism on a vertically mounted rotating shaft, which reduces the load on the structure of the sludge scraper by the buoyancy of an air tank, and loads the sludge scraper by its own weight. It is designed to act by reducing the weight and to reduce the amount of electric power used during operation.
In this publication, a scum discharge port is formed in a feed well, and a rotary blade that rotates in the feed well and discharges scum in the feed well from the scum discharge port is attached to a rotary shaft. -A scum is prevented from staying in a dwell.
Japanese Patent No. 99305 discloses that a stirring tank and a sludge storage tank are provided at a central position of a settling tank with a flow straightening plate and a sludge scraping rake to reduce the horizontal flow velocity of treated water by half so as to enhance the clarification ability with the same surface area of the settling tank. There is something that I did. Although any of these methods can scrape sludge, these methods cannot provide a sufficient effect.
【０００８】[0008]
【考案が解決しようとする課題】本考案は上記問題の解
決を目的とし、具体的には、フィ−ドウェルから放射方
向に拡散していく流入水の流速を均一化する沈殿装置を
提案することを目的とする。SUMMARY OF THE INVENTION The present invention aims at solving the above-mentioned problems, and more specifically, proposes a sedimentation apparatus for equalizing the flow rate of inflow water radially diffusing from a feedwell. With the goal.
【０００９】[0009]
【課題を解決するための手段】すなわち、本考案は沈殿
槽と、該槽の中心に立設した回転可能なレ−キシャフト
と、該レ−キシャフトの上部を同心状に囲む円筒形のフ
ィ−ドウェルと、該フィ−ドウェル内に原水を送給する
流入管と、前記フィ−ドウェルの下端開口部付近に設け
られた整流板とを備えた沈殿装置において、前記整流板
は円錐形整流板であって、前記レ−キシャフトに前記円
筒の下端と間隙をおいた位置に取付けられるとともに、
前記円錐形整流板の傾斜面に当接もしくは近接するスク
レ−パを備えたことを特徴とする。That is, the present invention provides a sedimentation tank, a rotatable rake shaft provided at the center of the tank, and a cylindrical filter concentrically surrounding the upper part of the rake shaft. In a sedimentation apparatus comprising a dwell, an inflow pipe for feeding raw water into the feedwell, and a straightening plate provided near a lower end opening of the feedwell, the straightening plate is a conical straightening plate. And attached to the rake shaft at a position spaced from the lower end of the cylinder,
A scraper is provided which is in contact with or close to the inclined surface of the conical current plate.
【００１０】[0010]
【作用】本発明者等は前記問題点を解決するために沈殿
槽のレ−キシャフトに整流板を設置し、中心に設けた円
筒形のフィ−ドウェルの容積を十分にとって下向きの流
れを整えるようにレ−キシャフトと整流板を一体で回転
させ、槽内への流入口を最適の円環スリットとし、かつ
このスリットを常に維持するためにスクレ−パを取付
け、整流板に付着したスケ−ル等を除去するようにする
と、フィ−ドウェルからの放射方向の流れ速度を半永久
的に均一化し、沈殿槽の高効率化、すなわち、理想化を
達成することができるという知見を得た。In order to solve the above-mentioned problems, the present inventors have installed a current plate on the rake shaft of the sedimentation tank and adjusted the downward flow by making sufficient the volume of the cylindrical feed well provided at the center. The rake shaft and the rectifying plate are rotated integrally with each other, the inlet into the tank is formed as an optimal annular slit, and a scraper is attached to keep this slit constantly, and the scale attached to the rectifying plate It has been found that, by eliminating such factors, the flow velocity in the radial direction from the feed well can be made semi-permanently uniform, and the efficiency of the settling tank can be increased, that is, idealized.
【００１１】[0011]
【実施例】本発明の装置の実施例を図１（ａ）ならびに
（ｂ）に従って詳細に説明する。図１（ａ）は本発明の
装置の縦断面図であり、（ｂ）は（ａ）の平面図であ
る。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the apparatus of the present invention will be described in detail with reference to FIGS. 1 (a) and 1 (b). FIG. 1A is a longitudinal sectional view of the device of the present invention, and FIG. 1B is a plan view of FIG.
【００１２】処理の対象となる原水たとえば金属水酸化
物含有廃液を液入管１から円筒形のフィ−ドウェル２に
流入させる。流入した廃液は整流板３で放射方向に均一
に流出するよう整流される。この際、沈殿槽を使用して
いると、整流板３上に金属水酸化物等のスケ−ルが付着
固形化する。このため、沈殿槽金属水酸化物の掻寄のた
め、沈殿槽レ−キシャフト４に整流板３を固定してお
き、レ−キシャフト４の回転とともに整流板３も回転さ
せる。整流板３上に滞留するスケ−ルをスクレ−パ５で
常時掻取り、スケ−ルの付着堆積を防ぐ。Raw water to be treated, for example, a waste liquid containing a metal hydroxide, is caused to flow from a liquid inlet pipe 1 into a cylindrical feed well 2. The waste liquid that has flowed in is rectified by the rectifying plate 3 so as to uniformly flow out in the radial direction. At this time, if a sedimentation tank is used, a scale such as a metal hydroxide adheres and solidifies on the current plate 3. For this reason, the current plate 3 is fixed to the sedimentation tank rake shaft 4 in order to scrape the metal hydroxide of the sedimentation bath, and the current plate 3 is rotated together with the rotation of the rake shaft 4. The scale remaining on the current plate 3 is constantly scraped by the scraper 5 to prevent the scale from adhering and accumulating.
【００１３】本方式によるとフィ−ドウェル２と整流板
３の間にスケ−ルが付着することなく、重金属含有廃水
がフィ−ドウェルから放射方向に均一に流れる。According to this system, the wastewater containing the heavy metal flows uniformly from the feed well in the radial direction without the scale adhered between the feed well 2 and the current plate 3.
【００１４】なお、沈殿した金属水酸化物はレ−キ４ａ
で中心のコ−ン６に集泥され、汚泥引抜管７より引抜か
れた後、脱水機で脱水され、埋立あるいは再利用され
る。一方、上澄水は集水トラフ８により集水され再利用
ないし、放流される。[0014] The precipitated metal hydroxide is rake 4a.
After being collected in the central cone 6 and extracted from the sludge extraction pipe 7, it is dehydrated by a dehydrator and is landfilled or reused. On the other hand, the supernatant water is collected by the collection trough 8 and is not reused or discharged.
【００１５】[0015]
【考案の効果】本発明によれば沈殿槽のレ−キシャフト
の中央部付近に整流板を設置し、シャフトと整流板を一
体で回転させ、かつ円筒形のフィ−ドウェルに設置した
スクレ−パで整流板に付着したスケ−ルを除去するよう
にしたので、流入水の放射方向の拡散速度が半永久的に
均一になるという良好な結果が得られる。According to the present invention, a current plate is installed near the center of the rake shaft of the settling tank, the shaft and the current plate are rotated integrally, and a scraper is installed in a cylindrical feed well. As a result, the scale adhered to the current plate is removed, so that a favorable result is obtained in which the diffusion speed of the inflowing water in the radial direction becomes semi-permanently uniform.
【００１６】また、本考案では沈殿槽フィ−ドウェルか
ら放射方向に均一に金属水酸化物を含有した廃液を流出
させるようにしたから、ある一定の方向のみの流速が上
昇しないため、沈殿槽から金属水酸化物がキャリイオ−
バ−するという問題はなくなった。なお、この効果は半
永久的に得られるものである。Further, in the present invention, since the waste liquid containing the metal hydroxide is uniformly discharged in the radial direction from the feed well of the sedimentation tank, the flow velocity only in a certain direction does not increase. Metal hydroxide is carrier-
The problem of barring is gone. This effect is obtained semi-permanently.
【００１７】また、沈殿槽の大きさ、すなわち、半径を
必要理論半径で設計することができるようになったた
め、建設費の大幅削減できるという効果もある。Further, since the size of the sedimentation tank, that is, the radius can be designed with a required theoretical radius, there is also an effect that the construction cost can be greatly reduced.
【図１】 本考案の装置の一つの実施例を示す縦断面図
である。FIG. 1 is a longitudinal sectional view showing one embodiment of the device of the present invention.
【図２】 図１の平面図である。FIG. 2 is a plan view of FIG.
【図３】 従来例を示す縦断面図である。FIG. 3 is a longitudinal sectional view showing a conventional example.
【図４】 図３の平面図である。FIG. 4 is a plan view of FIG. 3;
【符号の説明】 １ 流入管 ２ フィードウェル ３ 整流板 ４ レーキシャフト ５ スクレーパ ６ コーン ７ 汚泥引抜管 ８ 集水トラフ[Description of Signs] 1 Inflow pipe 2 Feed well 3 Rectifier plate 4 Rake shaft 5 Scraper 6 Cone 7 Sludge extraction pipe 8 Water collection trough
───────────────────────────────────────────────────── フロントページの続き (72)考案者 梶井 馨 東京都新宿区西新宿３丁目４番７号 栗 田工業株式会社内 (72)考案者 矢野 英明 東京都新宿区西新宿３丁目４番７号 栗 田工業株式会社内 (72)考案者 永田 享 東京都新宿区西新宿３丁目４番７号 栗 田工業株式会社内 (56)参考文献 特開 昭53−43946（ＪＰ，Ａ) 実開 昭55−126906（ＪＰ，Ｕ) ──────────────────────────────────────────────────続 き Continuing on the front page (72) Kaoru Kajii 3-4-7 Nishi-Shinjuku, Shinjuku-ku, Tokyo Kurita Kogyo Co., Ltd. (72) Hideaki Yano 3- 4-7 Nishishinjuku, Shinjuku-ku, Tokyo No. Kurita Kogyo Co., Ltd. (72) Inventor Satoru Nagata 3-4-7 Nishi Shinjuku, Shinjuku-ku, Tokyo Kurita Kogyo Co., Ltd. (56) References JP-A-53-43946 (JP, A) 1955-126906 (JP, U)
Claims (1)
レ−キシャフトの上部を同心状に囲む円筒形のフィ−ド
ウェルと、 該フィ−ドウェル内に原水を送給する流入管と、前記フ
ィ−ドウェルの下端開口部付近に設けられた整流板とを
備えた沈殿装置において、 前記整流板は円錐形整流板であって、前記レ−キシャフ
トに前記円筒の下端と間隙をおいた位置に取付けられる
とともに、 前記円錐形整流板の傾斜面に当接もしくは近接するスク
レ−パを備えたことを特徴とする沈殿装置。1. A sedimentation layer, a rotatable rake shaft erected at the center of the tank, a cylindrical feed well concentrically surrounding the upper part of the rake shaft, and In a sedimentation device provided with an inflow pipe for feeding raw water and a straightening plate provided near a lower end opening of the feed well, the straightening plate is a conical straightening plate, and the rake shaft is provided on the rake shaft. A sedimentation device comprising: a scraper attached to a position spaced from a lower end of a cylinder and abutting or approaching an inclined surface of the conical current plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2724991U JP2546680Y2 (en) | 1991-03-28 | 1991-03-28 | Sedimentation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2724991U JP2546680Y2 (en) | 1991-03-28 | 1991-03-28 | Sedimentation equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0526106U JPH0526106U (en) | 1993-04-06 |
| JP2546680Y2 true JP2546680Y2 (en) | 1997-09-03 |
Family
ID=12215804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2724991U Expired - Lifetime JP2546680Y2 (en) | 1991-03-28 | 1991-03-28 | Sedimentation equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2546680Y2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4254426B2 (en) * | 2003-08-27 | 2009-04-15 | 栗田工業株式会社 | Sedimentation tank equipment |
| JP4696646B2 (en) * | 2005-03-31 | 2011-06-08 | 栗田工業株式会社 | Sedimentation tank |
| JP4259505B2 (en) * | 2005-09-09 | 2009-04-30 | 栗田工業株式会社 | Sedimentation tank |
| JP5713793B2 (en) * | 2011-05-10 | 2015-05-07 | オルガノ株式会社 | Coagulation sedimentation equipment |
| JP6508293B1 (en) * | 2017-11-10 | 2019-05-08 | 栗田工業株式会社 | Settling tank |
| CN107954153B (en) * | 2017-12-11 | 2024-05-24 | 长沙开元仪器有限公司 | Belt conveying equipment and material rectifying device thereof |
-
1991
- 1991-03-28 JP JP2724991U patent/JP2546680Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0526106U (en) | 1993-04-06 |
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