WO1983002768A1 - Pressure floating settling tank - Google Patents

Pressure floating settling tank Download PDF

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Publication number
WO1983002768A1
WO1983002768A1 PCT/JP1983/000036 JP8300036W WO8302768A1 WO 1983002768 A1 WO1983002768 A1 WO 1983002768A1 JP 8300036 W JP8300036 W JP 8300036W WO 8302768 A1 WO8302768 A1 WO 8302768A1
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WO
WIPO (PCT)
Prior art keywords
cylinder
outlet
fluid outlet
water
waste
Prior art date
Application number
PCT/JP1983/000036
Other languages
French (fr)
Japanese (ja)
Inventor
Yoshitugu Shinohara
Yoshiro Shinohara
Keiichiro Murakawa
Original Assignee
Yakura, Kazunori
Minato, Soichiro
Yakura, Tetsuji
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yakura, Kazunori, Minato, Soichiro, Yakura, Tetsuji filed Critical Yakura, Kazunori
Publication of WO1983002768A1 publication Critical patent/WO1983002768A1/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/24—Treatment of water, waste water, or sewage by flotation

Definitions

  • the present invention pursues water by purging water in a pressurized floating sedimentation tank, and separates and removes filth, for example, sewage mixed with oil, BOD, COD, SS, and melts (salts, pigments, etc.). It depends on the pressure flotation sedimentation.
  • a separation tank installed on a ship or the like and used to remove oil from engine-cooled water containing oil and purify the water is provided with a limited amount of soft water. Must be used while purifying the water. For this reason, a separation tank that can remove only the oil without discarding the water and has an efficient separation capacity is required.
  • the conventional separation tank simply discharges oil (hereinafter referred to as “dirt”) accumulated in the upper part of the separation tank through a solenoid valve through a waste discharge pipe.
  • the cover of the separation tank has a flat top surface, and when the upward waste is discharged by the pressure in the tank, the nearby waste to which the discharge pipe is connected is connected.
  • An object of the present invention is to provide a pressurized floating sedimentation tank which has the above-mentioned drawbacks, enhances the separation performance of dirt, and does not discharge water together with the dirt separated by flotation. .
  • the present invention has a vertical first cylinder having a sewage inlet at the lower end and a sewage ffi port at the upper end, a jacket concentrically spaced apart from the first cylinder, a lower end having a fluid outlet, and an upper end floating. The first thing that became a waste outlet
  • Two cylinders Two cylinders, a waste discharge pipe connected to the upper end of the second cylinder and having at least a part with an upper narrowing portion, and a bubble mixed water connected to a lower part of the first cylinder A pressurized floating sediment containing an inlet pipe.
  • the structure is compact and water can be conserved without water being mixed into the derived waste, and the waste can be efficiently reduced by the action of the bubble mixed water introduction pipe. It is a block that is easily lifted and has a high efficiency of separating and eliminating waste. Also, even if the pressurized flotation tank is tilted during use, water will not be discharged together with the sewage.
  • FIG. 1 is a longitudinal sectional view showing one embodiment of the present invention.
  • the pressurized flotation settling tank is composed of a first cylinder 10, a second cylinder 20, a third cylinder 30, and a fourth cylinder, each of which has a vertical cylindrical shape.
  • CM? I O having a pipe 50, a filth guide pipe 60 connected to the upper part of the second cylinder 20, and a sediment discharge pipe 70 connected to the lower part
  • the first cylinder 10 has a cylindrical shape with a bottom, a sewage supply pipe serving as a sewage inlet 11 is connected to a bottom wall, and a bubble mixed water having an upward opening is provided on a lower side wall. Introductory tube 50 is inserted. The top of the first cylinder 10 is opened to serve as a sewage outlet 12 c.
  • the second cylinder 20 is concentric with the first cylinder 10 through a gap piece 20 a. It is covered and the upper and lower ends are opened to form a suspended waste outlet 21 and a fluid outlet 22, respectively.
  • the lower part of the second cylinder 20 is disposed concentrically with the first cylinder, and the upper part of the second cylinder 20 is located above the first cylinder 10 via a step 23 a through a large-diameter portion 23.
  • a waste discharge pipe 60 is connected to an upper end of the floating waste. Outlet 21.
  • the third cylinder 30 is jacketed concentrically with respect to the second cylinder leaving a space therebetween, and the fluid outlet 31 at the upper end thereof is located below the peripheral wall of the large diameter portion 23.
  • a flange 32 is provided outward from the upper end of the third cylinder.
  • the first cylinder 10 penetrates through the center of the bottom wall 33 of the third cylinder 30.
  • the lower part of the third cylinder 30 is a waste sedimentation chamber 30a, and the bottom wall 33 is connected to a waste discharge pipe 70 with an on-off valve with a waste outlet 33b opened.
  • the fourth cylinder is concentrically spaced from the third cylinder 30.
  • the bottom wall 43 also functions as an outer wall of the pressurized floating sedimentation tank main body A1.
  • a bed 40 a of activated carbon or the like is provided on a cradle 44.
  • a clean water outlet pipe 81 is connected to a lower part thereof via an annular water collection pipe 80 having a large number of pores on a lower surface.
  • Reference numeral 82 denotes a backwash water supply pipe connected to the other side of the collection pipe 80
  • reference numeral 83 denotes a backwash water discharge pipe provided on the top wall 42 of the fourth cylinder.
  • the waste discharge pipe 60 is connected to the upper end of the second cylinder 20 and is fixed to the top of the pressurized floating sedimentation tank main body A 1. Then, from bottom to top, a straight cylindrical portion 61 with the same diameter as the upper end of the second cylinder, a conical first reduced diameter portion 62 with a narrower upper diameter, and a second elliptical second diameter portion. It is composed of a reduced diameter portion 63.
  • a solenoid valve (not shown), which is automatically opened and closed intermittently, is connected to the end of the second reduced diameter portion 63 so as to intermittently discharge the filth accumulated in the filth discharge pipe 60.
  • First and second oil detectors 90a and 90b are provided above and below the lower cylindrical portion 61 of the waste discharge pipe 60, respectively.
  • the water mixed with the blocked waste is pumped and sent from the wastewater inlet 11 into the first cylinder 10.
  • Water mixed with fine bubbles is fed in through 50. Therefore, air bubbles adhere to the waste in the first cylinder and the buoyancy of the waste is increased, and the waste is discharged through the large-diameter portion 23.
  • the remaining water from which the filth has been removed falls down the second cylinder 20 from the top to the bottom, and the remaining heavy filth is deposited in the filth settling chamber 30a.
  • the water proceeds further and passes through the third cylinder 30 from below to the fourth cylinder 40.
  • the water that has proceeded to the fourth cylinder 40 is purified through the door layer 40a, collected in the water collection pipe 80 provided below, and discharged from the clean water discharge pipe 81. .
  • the filth floating and accumulated in the straight cylindrical part 61, the first reduced diameter part 62, and the second reduced diameter part 63 of the waste discharge pipe 60 is provided at the tip of the second reduced diameter part 63.
  • the solenoid valve (not shown) is opened intermittently, it is ejected by water pressure.
  • the dirt outlet pipe 60 has a small diameter, but is also reduced in diameter so as to have a smaller diameter in the dirt discharge direction. No water is derived to the public. This applies even if the pressurized flotation tank A is tilted to some extent following the sway of the ship when it is placed on the ship.
  • the first oil detector 90a is filled with dirt in the dirt outlet pipe 60, the water level is reduced due to the dirt, and the interface between the water and the dirt is formed by the oil detector 90a. It senses that it has gone down to the position and serves to open the solenoid valve of the waste discharge pipe 60. Also, the second oil detector 90b serves to control the opening of the solenoid valve when the interface goes down to the installation height of the detector. In this way, the interface is always at the first, It is maintained at a height between the second oil inspection devices 90a and 90b and the installation position of the second oil inspection devices 90a and 90b.
  • the sediment discharge pipe 70 is opened when the waste accumulated in the sediment settling chamber 30a is discharged.
  • the upper end of the first cylinder 10 may be located in the lower cylindrical part 61 of the waste pipe 60. It is sufficient that at least a part of the waste discharge pipe 60 has an upper narrowed portion, and the second reduced diameter portion 63 is not provided with a taper but is an elbow having the same diameter. You may.

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physical Water Treatments (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)

Abstract

This tank has a first vertical cylinder (10) having a sewage inlet (11) at the lower end and a sewage outlet (12) at the upper end, a second cylinder (20) concentrically around the first cylinder at a distance therefrom, a contaminant guiding tube (60) connected to the upper end of the second cylinder and having an upper narrow-diameter part at least partly over the upper end of the second cylinder, and a tube (50) guiding foam mixed with water connected to the lower part of the first cylinder (10).

Description

明 細 書  Specification
発明の名称  Title of invention
加圧浮上沈澱槽  Pressure flotation sedimentation tank
技術分野  Technical field
本発明は加圧浮上沈澱槽に 鬨 し 、 汚物、 例 え ば油、 B O D 、 C O D 、 S S や溶融物 （ 塩分 、 色素等 ） が混 入 し た汚水か ら 汚物を分離排除 し 、 水 を浄化す る た め の加圧浮上沈澱櫝に か か る 。  The present invention pursues water by purging water in a pressurized floating sedimentation tank, and separates and removes filth, for example, sewage mixed with oil, BOD, COD, SS, and melts (salts, pigments, etc.). It depends on the pressure flotation sedimentation.
背景技術  Background art
例 え ば船舶な ど に 設置 さ れ 、 油が混入 し た エ ン ジ ン 冷却水か ら 油分 を 拂除 し て水 を浄化さ せ る た め の 分離 槽は 、 限 ら れた量 の軟水 を 循環浄化 し な が ら 使用 し な ければな ら なレ、。 こ の た め 、 水を捨て な いで油の みが 排除でき 、 し か も 効率の よ い分離能力 を 持つ分離槽が 要求さ れ る 。 併 し な が ら 、 従来の 分離槽は単 に槽上部 に溜った油 （ 以下汚物 と い う ） を污物排送管に よ り 電 磁弁を介 し て排出す る よ う に し て いた 。 し か も 、 分離 槽の カ バ ーは平坦頂面を な し 、 槽内圧力に よ っ て 上ず みの汚物が排出さ れ る 際、 前記排送管が接続 さ れ る 付 近の汚物の みがお し 出さ れ 、 それにつ れて 、 水ま で も 一緒に排出 さ れる 危険性があ っ た 。 特に 、 船の傾き に つれて分離槽が傾いた 時、 水面が排送管の 開 口 部ま で 来る 現象が発生 し 、 水が排出 さ れ易かった 。  For example, a separation tank installed on a ship or the like and used to remove oil from engine-cooled water containing oil and purify the water is provided with a limited amount of soft water. Must be used while purifying the water. For this reason, a separation tank that can remove only the oil without discarding the water and has an efficient separation capacity is required. However, the conventional separation tank simply discharges oil (hereinafter referred to as “dirt”) accumulated in the upper part of the separation tank through a solenoid valve through a waste discharge pipe. Was. However, the cover of the separation tank has a flat top surface, and when the upward waste is discharged by the pressure in the tank, the nearby waste to which the discharge pipe is connected is connected. There was a danger that the water would be dumped, and even the water would be discharged. In particular, when the separation tank was tilted as the ship was tilted, a phenomenon that the water surface reached the opening of the discharge pipe occurred, and water was easily discharged.
発明の 開示 Disclosure of the invention
_ OMH一 — 本発明は 上記欠点を 除き 、 汚物の分離性能を 高め 、 し か も 水が浮上分離さ れた汚物 と 共に排出する こ と の ない加圧浮上沈澱槽を提供す る こ と を 目 的 と する 。 _ OMH- An object of the present invention is to provide a pressurized floating sedimentation tank which has the above-mentioned drawbacks, enhances the separation performance of dirt, and does not discharge water together with the dirt separated by flotation. .
本発明は下端に汚水入 口 、 上端に汚水 ffi口 を も つ鉛 直第 1 筒 と 、 該第 1 筒に対 し 同心に間隔を残 し て外被 さ れ下端が流体出口 、 上端が浮遊汚物出口 と なった第  The present invention has a vertical first cylinder having a sewage inlet at the lower end and a sewage ffi port at the upper end, a jacket concentrically spaced apart from the first cylinder, a lower end having a fluid outlet, and an upper end floating. The first thing that became a waste outlet
2 筒 と 、 該第 2 筒の 上端に接続さ れて少な く と も 一部 分に上狭縮径部を持つ汚物導出管 と 、 前記第 1 筒の下 部に接続さ れた気泡混合水導入管 と を 含む加圧浮上沈 澱搢であ る 。  Two cylinders, a waste discharge pipe connected to the upper end of the second cylinder and having at least a part with an upper narrowing portion, and a bubble mixed water connected to a lower part of the first cylinder A pressurized floating sediment containing an inlet pipe.
従っ て 、 構造が コ ン パ ク ト で あ り 、 導出汚物 中に水 が混入す る こ と がな く 節水でき 、 そ の う え 、 気泡混合 水導入管の 作用に よ り 汚物が効率 よ く 浮上さ れやすい フ ロ ッ ク と なって汚物の分離排除効率が高い。 また 、 使用 中加圧浮上沈澱槽が傾 く こ と があ って も 水が汚水 と 一緒に排出さ れる こ と がな い。  Therefore, the structure is compact and water can be conserved without water being mixed into the derived waste, and the waste can be efficiently reduced by the action of the bubble mixed water introduction pipe. It is a block that is easily lifted and has a high efficiency of separating and eliminating waste. Also, even if the pressurized flotation tank is tilted during use, water will not be discharged together with the sewage.
図面の簡単な説明 - 図は本発明の一実施例を示す縦断面図であ る 。 BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal sectional view showing one embodiment of the present invention.
発明を実施す る た め の最良の形態 BEST MODE FOR CARRYING OUT THE INVENTION
以下本発明を よ り 詳細に説述する た め 、 添付図面に 従って説明する 。  Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.
図において 、 加圧浮上沈鑀槽は 、 外形が鉛直円筒状 を なす第 1 筒 1 0 、 第 2 筒 2 0 、 第 3 筒 3 0 、 第 4 筒  In the figure, the pressurized flotation settling tank is composed of a first cylinder 10, a second cylinder 20, a third cylinder 30, and a fourth cylinder, each of which has a vertical cylindrical shape.
4 0 と 、 前記第 1 筒 1 0 へ達結さ れた気泡混合水導入 40 and the introduction of bubble mixed water reaching the first cylinder 10
CM?I 管 5 0 と 、 前記第 2 筒 2 0 の 上部に接続 さ れた 汚物導 出管 6 0 、 下部に接続さ れた 沈澱物排出管 7 0 と を 有 する O CM? I O having a pipe 50, a filth guide pipe 60 connected to the upper part of the second cylinder 20, and a sediment discharge pipe 70 connected to the lower part
第 1 筒 1 0 は有底の 円筒状を な し 、 底壁に汚水入 口 1 1 と な る 汚水供給管が接続 さ れ 、 ま た 、 下部側壁に は 上向開 口 す る 気泡混合水導入管 5 0 が貫挿 さ れて い る 。 第 1 筒 1 0 の頂部は 開放 さ れ汚水出 口 1 2 と な る c 第 2 筒 2 0 は 前記第 1 筒 1 0 に対 し て 同心に 、 隙間 ピ — ス 2 0 a を 介 し て外被 さ れ 、 上下端が開放 さ れて夫 々 、 浮遊汚物出 口 2 1 、 流体 出 口 2 2 と なっ て い る 。 The first cylinder 10 has a cylindrical shape with a bottom, a sewage supply pipe serving as a sewage inlet 11 is connected to a bottom wall, and a bubble mixed water having an upward opening is provided on a lower side wall. Introductory tube 50 is inserted. The top of the first cylinder 10 is opened to serve as a sewage outlet 12 c. The second cylinder 20 is concentric with the first cylinder 10 through a gap piece 20 a. It is covered and the upper and lower ends are opened to form a suspended waste outlet 21 and a fluid outlet 22, respectively.
ま た 、 第 2 筒 2 0 は その 下部が前記第 1 筒 と 同心に配 置 さ れ、 上部は 前記第 1 筒 1 0 の 上方 に おい て 段 2 3 a を介 し て大径部 2 3 と さ れ 、 前記浮遊汚物.出 口 2 1 の 上端に は汚物導出管 6 0 が接続 さ れる 。  The lower part of the second cylinder 20 is disposed concentrically with the first cylinder, and the upper part of the second cylinder 20 is located above the first cylinder 10 via a step 23 a through a large-diameter portion 23. A waste discharge pipe 60 is connected to an upper end of the floating waste. Outlet 21.
第 3 筒 3 0 は 前記.第 2 筒に対 し 同心に 間隔 を 残 し て 外被さ れ、 そ の 上端の流体出 口 3 1 は 前記大径部 2 3 の周壁下方に位置す る 。 第 3 筒の 上端か ら 外方へ フ ラ ン ジ 3 2 が設け ら れる 。 第 3 筒 3 0 の底壁 3 3 中央に 前記第 1 筒 1 0 が貫通 さ れ る 。 第 3 筒 3 0 の 下部は汚 物沈澱室 3 0 a と さ れ 、 そ の 底壁 3 3 に汚物出 口 3 3 b を 開口 さ れた 開閉弁付の沈澱物排出管 7 0 が接続 さ れ O  The third cylinder 30 is jacketed concentrically with respect to the second cylinder leaving a space therebetween, and the fluid outlet 31 at the upper end thereof is located below the peripheral wall of the large diameter portion 23. A flange 32 is provided outward from the upper end of the third cylinder. The first cylinder 10 penetrates through the center of the bottom wall 33 of the third cylinder 30. The lower part of the third cylinder 30 is a waste sedimentation chamber 30a, and the bottom wall 33 is connected to a waste discharge pipe 70 with an on-off valve with a waste outlet 33b opened. O
更に 、 第 3 筒 3 0 に対 し 同心に 間隔を残 し て 第 4 筒  Further, the fourth cylinder is concentrically spaced from the third cylinder 30.
4 0 が外被 さ れ る π 第 4 筒 4 0 の 側壁 4 1 、 頂壁 4 2 、 The side wall 4 1, the top wall 4 2,
OMFI 底壁 4 3 は 、 加圧浮上沈澱槽本体 A 1 の外側壁を兼ね る。 第 4 筒 4 0 内の下半部には、 受台 4 4 上に活性炭 等の ^過層 4 0 a が設け られている 。 そして、 その下 方には下面に多数の細孔を有する 環状の集水管 8 0 を 経て清浄水導出管 8 1 が接続される 。 なお、 8 2 は前 記集水管 8 0 の他方側に接続された逆洗用水供給管、 8 3 は第 4 筒頂壁 4 2 に設け られた逆洗用水排出管で あ る 。 OMFI The bottom wall 43 also functions as an outer wall of the pressurized floating sedimentation tank main body A1. In the lower half of the fourth cylinder 40, a bed 40 a of activated carbon or the like is provided on a cradle 44. Then, a clean water outlet pipe 81 is connected to a lower part thereof via an annular water collection pipe 80 having a large number of pores on a lower surface. Reference numeral 82 denotes a backwash water supply pipe connected to the other side of the collection pipe 80, and reference numeral 83 denotes a backwash water discharge pipe provided on the top wall 42 of the fourth cylinder.
汚物導出管 6 0 は前記第 2 筒 2 0 の上端に接続され て、 加圧浮上沈澱槽本体 A 1 の頂部に固定される。 そ して下か ら 上へ順に第 2 筒上端と 同径の直円筒部 6 1 、 上狭縮径さ れた円錐第 1 縮径部 6 2 及び径違してエ ル ボ状の第 2 縮径部 6 3 か ら なる 。 第 2 縮径部 6 3 の先 端には間欠自動開閉される電磁弁 （ 図示省略 ） が接続 され、 前記汚物導出管 6 0 内に溜った汚物を間欠的に 排出する 構造と なっている 。  The waste discharge pipe 60 is connected to the upper end of the second cylinder 20 and is fixed to the top of the pressurized floating sedimentation tank main body A 1. Then, from bottom to top, a straight cylindrical portion 61 with the same diameter as the upper end of the second cylinder, a conical first reduced diameter portion 62 with a narrower upper diameter, and a second elliptical second diameter portion. It is composed of a reduced diameter portion 63. A solenoid valve (not shown), which is automatically opened and closed intermittently, is connected to the end of the second reduced diameter portion 63 so as to intermittently discharge the filth accumulated in the filth discharge pipe 60.
汚物導出管 6 0 の下部円筒部 6 1 の側方には上下に 第 1 第 2 油検出器 9 0 a ， 9 0 b が設け ら れてレ、る 。  First and second oil detectors 90a and 90b are provided above and below the lower cylindrical portion 61 of the waste discharge pipe 60, respectively.
次に作動態様を説明する 。 フ ロ ッ ク化された汚物が 混入された水は ポ ン プ圧力を加え られて汚水入口 1 1 か ら第 1 筒 1 0 内に送られる が、 第 1 筒内には同時に 気泡混合水導管 5 0 を経て微粒気泡が混合された水が 送入される 。 従って、 第 1 筒内の汚物に気泡が付着し て汚物の浮力が増大され、 大径部 2 3 を経て汚物導出 管 6 0 に蓄積さ れ る 。 そ し て 、 前記汚物が除去さ れた 残 り の水は 第 2 筒 2 0 を 上か ら 下へ下降 し 、 残留す る 汚物の重い も の は汚物沈澱室 3 0 a に沈積さ れ る 。 水 は更に進んで第 3 筒 3 0 を 下か ら 上へ通過 し 第 4 筒 4 0 に入る 。 第 4 筒 4 0 に進ん だ水は 戸過層 4 0 a を通 つ て浄化 さ れ、 下部に設け ら れた集水管 8 0 に集水さ れ 、 清浄水導出管 8 1 よ り 流 出す る 。 Next, an operation mode will be described. The water mixed with the blocked waste is pumped and sent from the wastewater inlet 11 into the first cylinder 10. Water mixed with fine bubbles is fed in through 50. Therefore, air bubbles adhere to the waste in the first cylinder and the buoyancy of the waste is increased, and the waste is discharged through the large-diameter portion 23. Stored in tube 60. Then, the remaining water from which the filth has been removed falls down the second cylinder 20 from the top to the bottom, and the remaining heavy filth is deposited in the filth settling chamber 30a. . The water proceeds further and passes through the third cylinder 30 from below to the fourth cylinder 40. The water that has proceeded to the fourth cylinder 40 is purified through the door layer 40a, collected in the water collection pipe 80 provided below, and discharged from the clean water discharge pipe 81. .
汚物導出管 6 0 の直 円筒部 6 1 、 第 1 縮径部 6 2 お よび第 2 縮径部 6 3 内に浮上集積さ れてい る 汚物は 、 第 2 縮径部 6 3 の先端に 設け ら れた電磁弁 （ 図示せず ) が間欠開放さ れ る と 水圧に よ り お し 出 さ れ る 。 こ の 際、 汚物導出管 6 0 は 小径で し か も 、 汚物の導出方向 に沿って更に小径 と な る よ う 縮径 さ れてい る た め 、 汚 物導出管 6 0 か ら 汚物 と 一緒に水が導出さ れ る こ と は ない。 こ の こ と は加圧浮上沈澱槽 A が船に載せ ら れた と き船の揺れに従っ て或る 程度傾いた場合で も 適用 さ れる 。  The filth floating and accumulated in the straight cylindrical part 61, the first reduced diameter part 62, and the second reduced diameter part 63 of the waste discharge pipe 60 is provided at the tip of the second reduced diameter part 63. When the solenoid valve (not shown) is opened intermittently, it is ejected by water pressure. At this time, the dirt outlet pipe 60 has a small diameter, but is also reduced in diameter so as to have a smaller diameter in the dirt discharge direction. No water is derived to the public. This applies even if the pressurized flotation tank A is tilted to some extent following the sway of the ship when it is placed on the ship.
第 1 油検出器 9 0 a は 、 汚物導出管 6 0 内に汚物が 充満 し 、 該汚物の た め水面が圧 し 下げ ら れ 、 水 と 汚物 と の界面が前記油検出器 9 0 a の位置 ま で下っ た こ と を感知 し て汚物導出管 6 0 の電磁弁を 開放 さ せ る 役 目 を する 。 ま た 、 第 2 油検出器 9 0 b は界面が.該器の設 置高さ ま で下っ た と き 、 前記電磁弁の 開放を 制御する の に役立つ。 こ の よ う に し て界面は 常時、 前記第 1 , 第 2 油検 ffi器 9 0 a ， 9 0 b の設置位置 と の間の高さ に維持さ れる 。 The first oil detector 90a is filled with dirt in the dirt outlet pipe 60, the water level is reduced due to the dirt, and the interface between the water and the dirt is formed by the oil detector 90a. It senses that it has gone down to the position and serves to open the solenoid valve of the waste discharge pipe 60. Also, the second oil detector 90b serves to control the opening of the solenoid valve when the interface goes down to the installation height of the detector. In this way, the interface is always at the first, It is maintained at a height between the second oil inspection devices 90a and 90b and the installation position of the second oil inspection devices 90a and 90b.
第 4 筒 4 0 内の ^過層 4 0 a 形成部材の洗浄に際 し 逆洗用水供給管 8 2 か ら 水が注入さ れ、 逆洗用水排出 管 8 3 よ り 排出さ れる 。 こ れ ら 両管は常時には 閉止さ れている o  Water is injected from the backwash water supply pipe 82 when washing the member forming the super layer 40a in the fourth cylinder 40, and is discharged from the backwash water discharge pipe 83. Both pipes are always closed o
沈澱物排出管 7 0 は汚物沈澱室 3 0 a 内に溜った、. 鷇物を排出す る 際に 開放さ れ る 。  The sediment discharge pipe 70 is opened when the waste accumulated in the sediment settling chamber 30a is discharged.
上記実施例において 、 第 1 筒 1 0 の 上端が汚物導岀 管 6 0 の 下部円筒部 6 1 内に位置 さ れて も よ い。 また 汚物導出管 6 0 は少な く と も 一部分に 上狭縮径部を持 つていれば よ く 、 第 2 縮径部 6 3 は テ 一パ付でな く 、 同径 エ ル ボであっ て も よ い。  In the above embodiment, the upper end of the first cylinder 10 may be located in the lower cylindrical part 61 of the waste pipe 60. It is sufficient that at least a part of the waste discharge pipe 60 has an upper narrowed portion, and the second reduced diameter portion 63 is not provided with a taper but is an elbow having the same diameter. You may.

Claims

請 求 の 範 囲 The scope of the claims
(1) 下端に汚水入 口 、 上端に汚水出 口 を も つ鉛直第 1 筒 と 、 該第 1 筒に対 し 同心に 間隔 を残 し て外被 さ れ下 端が流体出 口 、 上端が浮遊汚物出 口 と なっ た 第 2 筒 と 該第 2 筒の 上端に接続 さ れて少な く と も 一部分に上狭 縮径部を 持つ汚物導出管 と 、 前記第 1 筒の 下部に接続 さ れた気泡混合水導入管 と を 含む こ と を特徵 と す る 加 圧浮上沈鑀槽。  (1) A vertical first cylinder having a sewage inlet at the lower end and a sewage outlet at the upper end, and a fluid outlet at the lower end and a fluid outlet at the upper end and a fluid outlet at the upper end, A second cylinder serving as a floating waste outlet, a waste discharge pipe connected to an upper end of the second cylinder, and having at least a portion having an upper-narrower-diameter portion; and a lower end of the first cylinder. A pressurized flotation settling tank characterized in that it contains an air bubble mixed water introduction pipe.
( 2) 下端に汚水入 口 、 上端に 汚水出 口 を も つ鉛直第 1 筒 と 、 該第 1 筒に対 し 同心に 間隔 を 残 し て外被 さ れ下 端が流体出 口 、 上端が浮遊汚物出 口 と なっ た 第 2 筒 と .  (2) A vertical first cylinder having a sewage inlet at the lower end and a sewage outlet at the upper end, and a fluid outlet at the lower end and a fluid outlet at the upper end and a fluid outlet at the upper end, With the second cylinder which became a floating waste outlet.
該第 2 誇の 上端に 接続 さ れて少な く と も 一部分 に 上狭 縮径部を 持つ汚物導出管 と 、 前記第 1 筒の 下部に接続 さ れた気泡混合水導入管 と 、 前記第 2 筒に対 し 同心に 間隔を残 し て外被さ れ 、 下部が沈澱室 と さ れ 、 上端が 流体出口 と さ れた 第 3 筒 と 、 該第 3 筒に対 し 同心に 間 隔を残 し て外被 さ れた 筒側壁の 上端に 前記第 2 筒 と の 間で頂壁が固定さ れ 、 該筒側壁の 下端に前記第 3 筒 と の 間で底壁が固定 さ れ 、 下部に浄水出 口 を持つ 第 4 筒 と 、 前記第 3 ， 第 4 筒の 間隔内に 過層が充填 さ れた こ と を特徵 と する 加圧浮上沈澱槽。 A filth discharge pipe connected to an upper end of the second boast and having at least a part having an upper narrow diameter portion; a bubble mixed water introduction pipe connected to a lower part of the first cylinder; A third cylinder, which is concentrically covered with the cylinder at an interval, has a lower part serving as a sedimentation chamber, and has an upper end serving as a fluid outlet, and a concentric space left relative to the third cylinder. Then, the top wall is fixed to the upper end of the cylindrical side wall covered with the second cylinder, the bottom wall is fixed to the lower end of the cylindrical side wall between the third cylinder and the lower end, and A fourth cylinder having a purified water outlet, and a pressurized floating sedimentation tank characterized in that the gap between the third and fourth cylinders is filled with an excess layer.
ΟΪ.·ί?Ι ΟΪ.
PCT/JP1983/000036 1982-02-12 1983-02-07 Pressure floating settling tank WO1983002768A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP57021915A JPS5946674B2 (en) 1982-02-12 1982-02-12 Pressurized flotation tank
JP57/21915820212 1982-02-12

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WO1983002768A1 true WO1983002768A1 (en) 1983-08-18

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4915823A (en) * 1988-11-14 1990-04-10 Hall Thomas W Assembly for the separation of oil from water
DE4038606A1 (en) * 1990-09-10 1992-09-17 Rohe Gmbh A Cleaning vehicle washing water - using equipment comprising foam-maker, flotation sepn. tank and liquefier and foam thickener consisting of tank with conical floor and roof
DE4038605A1 (en) * 1990-09-10 1992-09-17 Rohe Gmbh A Procedure and device for cleaning vehicle washing water - comprise adding flocculant and water is agitated to form foam which carries dirt particles to upper outlet while water is drawn from base of chamber
WO1996018578A1 (en) * 1994-12-13 1996-06-20 Viktor Sergeevich Gevod System for removing surface active contaminants from water by flotation

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03296482A (en) * 1990-04-14 1991-12-27 S T Eng Kk Floting, settling and separating apparatus for polluted water
KR100894646B1 (en) 2009-01-23 2009-04-24 주식회사 동신이엔텍 Dissolved air floatation tank
FI126360B (en) * 2012-11-23 2016-10-31 Ferroplan Oy Water treatment method and device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4996559A (en) * 1972-12-13 1974-09-12

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4996559A (en) * 1972-12-13 1974-09-12

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4915823A (en) * 1988-11-14 1990-04-10 Hall Thomas W Assembly for the separation of oil from water
DE4038606A1 (en) * 1990-09-10 1992-09-17 Rohe Gmbh A Cleaning vehicle washing water - using equipment comprising foam-maker, flotation sepn. tank and liquefier and foam thickener consisting of tank with conical floor and roof
DE4038605A1 (en) * 1990-09-10 1992-09-17 Rohe Gmbh A Procedure and device for cleaning vehicle washing water - comprise adding flocculant and water is agitated to form foam which carries dirt particles to upper outlet while water is drawn from base of chamber
WO1996018578A1 (en) * 1994-12-13 1996-06-20 Viktor Sergeevich Gevod System for removing surface active contaminants from water by flotation

Also Published As

Publication number Publication date
JPS5946674B2 (en) 1984-11-14
JPS58139780A (en) 1983-08-19
KR840003583A (en) 1984-09-15

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