JPH0699167A - Flotation separation method for floating particles in liquid and device therefor - Google Patents
Flotation separation method for floating particles in liquid and device thereforInfo
- Publication number
- JPH0699167A JPH0699167A JP4275159A JP27515992A JPH0699167A JP H0699167 A JPH0699167 A JP H0699167A JP 4275159 A JP4275159 A JP 4275159A JP 27515992 A JP27515992 A JP 27515992A JP H0699167 A JPH0699167 A JP H0699167A
- Authority
- JP
- Japan
- Prior art keywords
- liquid
- gas
- floating
- particles
- bubbles
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physical Water Treatments (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、湖沼等のアオコや廃
液中の有機物など、液体中に浮遊しているさまざまな種
類又は大きさの粒子を浮上させて除去するための浮遊粒
子浮上分離方法と装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floating particle floating separation method for floating and removing particles of various types or sizes floating in a liquid, such as water-bloom in lakes and marshes and organic matter in waste liquid. And equipment.
【０００２】[0002]
【従来の技術】従来、水中の細かい粒子を気泡により浮
上させるものとしては、加圧浮上方式が用いられてい
た。これは、気体を水に加圧溶解し、大気圧下に減圧す
ることによって、溶解していた気体を析出させ、その析
出した気泡を利用して水中の粒子を浮上させるものであ
る。この気泡は、数ミクロンから十数ミクロンの大きさ
で、液中の浮遊物の回りに良く析出するという性質があ
る。また、水中に気泡を拡散させる方法として、散気板
を用いて、水中に気泡を注入する方法もある。この場
合、形成される気泡は、百ミクロン以上の大きさのもの
である。2. Description of the Related Art Conventionally, a pressure levitation method has been used to levitate fine particles in water by air bubbles. In this method, a gas is dissolved in water under pressure and the pressure is reduced under atmospheric pressure to precipitate the dissolved gas, and the precipitated bubbles are used to float particles in water. The bubbles have a size of several microns to ten and several microns, and have the property that they are well deposited around suspended matter in the liquid. Further, as a method of diffusing bubbles in water, there is also a method of injecting bubbles into water using a diffuser plate. In this case, the bubbles formed have a size of 100 microns or more.
【０００３】[0003]
【発明が解決しようとする課題】上記従来の技術の加圧
浮上方式の場合、析出により形成される気泡は小さいた
め、浮力が小さく、水中の浮遊粒子を浮上させるにはか
なりの時間を必要とし効率が悪いという問題があった。
また、水に対する気体の溶解度は気体の圧力に比例する
ため、大量の気体を溶解させ水中に多くの気泡を生成す
るためには、かなりの高圧に加圧して溶解させなければ
ならず、装置が大型化し、高価になるという欠点があっ
た。また、散気板で気泡を形成する場合、気泡が百ミク
ロン以上であり大きな気泡しか得られず、微小な浮遊粒
子を捕らえて浮上しても、すぐにその粒子から気泡が剥
離してしまい、浮遊粒子は浮力を失い再び水中にも戻っ
てしまうという問題があった。In the case of the above-mentioned prior art pressure floating method, since the bubbles formed by precipitation are small, the buoyancy is small and it takes a considerable time to float the suspended particles in the water. There was a problem of poor efficiency.
Also, since the solubility of gas in water is proportional to the pressure of gas, in order to dissolve a large amount of gas and generate many bubbles in water, it is necessary to pressurize the gas to a considerably high pressure to dissolve it. It has the drawback of becoming large and expensive. Also, when forming bubbles with the diffuser plate, the bubbles are only 100 microns or more and only large bubbles are obtained, and even if fine floating particles are caught and floated, the bubbles are immediately separated from the particles, There was a problem that suspended particles lost their buoyancy and returned to water again.
【０００４】この発明は、上記従来の技術の問題点に鑑
みて成されたもので、簡単な構造で、効率よく液体中に
浮遊する粒子を浮上させ分離除去可能にする浮遊粒子浮
上分離方法と装置を提供することを目的とする。The present invention has been made in view of the above-mentioned problems of the prior art, and has a simple structure and a floating particle floating separation method for efficiently floating particles to be separated and removed. The purpose is to provide a device.
【０００５】[0005]
【課題を解決するための手段】この発明は、数ミクロン
から数百ミクロンの気泡を同時に液体中に形成し、液体
中の浮遊粒子を比較的大きな気泡により捕らえて浮上さ
せ、浮上した浮遊粒子を相対的に小さい気泡の浮力によ
り浮上位置を維持させる液体中の浮遊粒子浮上分離方法
である。According to the present invention, bubbles of several microns to several hundreds of microns are simultaneously formed in a liquid, and floating particles in the liquid are caught and floated by relatively large bubbles. This is a method of floating and separating suspended particles in a liquid in which the floating position is maintained by the buoyancy of relatively small bubbles.
【０００６】またこの発明は、液体と気体とを混合する
気液溶解混合器を設け、この気液溶解混合器に、液体流
路に設けられたベンチュリ管やオリフィス等による絞り
部と、この絞り部のわずかに下流側に設けられた気体流
入口と、上記絞り部から続いて管路を徐々に広げた広が
り部とを形成し、この広がり部の下流に設けられ流路中
の液体と上記気体流入口から流入した気体とを混合する
混合部と、この混合部の出口側に設けられて浮遊粒子が
存在する液体中に数ミクロンから数百ミクロンの大きさ
の気泡を噴射させるノズル部とを設けた液体中の浮遊粒
子浮上分離装置である。Further, according to the present invention, a gas-liquid dissolution mixer for mixing a liquid and a gas is provided, and the gas-liquid dissolution mixer is provided with a throttling portion such as a Venturi tube or an orifice provided in the liquid flow path, and this throttling. A gas inlet provided slightly downstream of the section, and a spreading section that gradually expands the pipe line continuing from the throttle section, and the liquid in the flow channel provided downstream of the spreading section and the above A mixing unit for mixing the gas flowing in from the gas inlet, and a nozzle unit provided on the outlet side of the mixing unit for injecting bubbles of a size of several microns to several hundreds of microns into the liquid containing suspended particles. It is a floating particle separation device for suspended particles in a liquid.
【０００７】[0007]
【作用】この発明の浮遊粒子浮上分離装置は、絞り部付
近の負圧部分で液体中に混合された気体を、混合部で混
合し加圧溶解させ、ノズル部から液体及び気体を噴射
し、気体をせんだんして細分化するとともに、溶解した
気体を析出させ、数ミクロンから数百ミクロンの幅広い
大きさの気泡を液体中に形成する。これにより、比較的
大きな気泡を液体中の浮遊粒子を捕らえて浮上させ、浮
上した粒子及び気泡の内、比較的大きな気泡は粒子から
剥離し大気中に逃げていくが、比較的小さい気泡は粒子
から剥離せず、その浮力により浮上粒子を浮上位置に維
持させるものである。The floating particle levitation separation device of the present invention comprises: a gas mixed in a liquid at a negative pressure portion near the throttle portion is mixed and melted under pressure in a mixing portion, and the liquid and gas are jetted from a nozzle portion, The gas is packed and subdivided, and the dissolved gas is precipitated to form bubbles in a wide size of several microns to several hundreds of microns in the liquid. As a result, relatively large bubbles catch floating particles in the liquid and float, and among the floating particles and bubbles, relatively large bubbles separate from the particles and escape to the atmosphere, but relatively small bubbles are particles. The particles are not separated from each other, and the floating particles maintain the floating particles at the floating position.
【０００８】[0008]
【実施例】以下この発明の浮遊粒子浮上分離方法と装置
の実施例について図面に基づいて説明する。図１〜図４
はこの発明の第一実施例の浮遊粒子浮上分離装置を示す
もので、図１は、この実施例の気液溶解混合器１０を示
す。図示するように、水等の液体中に空気等の気体を混
合する気液溶解混合器１０には、絞り部を形成するのど
部１２が中央部に設けられたベンチュリ管１４が形成さ
れている。このベンチュリ管１４の下流側の広がり部１
６には、のど部１２のわずか下流側に、外部から送られ
る空気を流路中に混合させるための気体流入口１８が形
成され、気体流入口１８に管路２０の先端が接続されて
いる。広がり部１６の下流側には、気体流入口１８から
流入した気体と流路中の液体とを相対的に加圧状態で混
合する混合部であるとともに、混合された気体と液体と
を輸送する部分である管路２２が接続されている。管路
２２は、鋼管又はフレキシブルな管でも良く、その外径
は、のど部１２との圧力差に鑑みて任意に設定し得るも
のであり、ここでは広がり部１６の最大径から延長した
形状に形成されている。この管路２２の先端には、複数
のノズル口２４が形成されたノズル部２６が取り付けら
れている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the floating particle floating separation method and apparatus of the present invention will be described below with reference to the drawings. 1 to 4
Shows a suspended particle flotation / separation apparatus of a first embodiment of the present invention, and FIG. 1 shows a gas-liquid dissolution mixer 10 of this embodiment. As shown in the figure, a gas-liquid dissolution mixer 10 for mixing a gas such as air into a liquid such as water is provided with a venturi tube 14 having a throat portion 12 forming a throttle portion in the center thereof. . The downstream widened portion 1 of the Venturi pipe 14
A gas inflow port 18 for mixing the air sent from the outside into the flow path is formed at a position slightly downstream of the throat 12 in the throat portion 6, and the tip of the conduit 20 is connected to the gas inflow port 18. . On the downstream side of the expanding portion 16, there is a mixing portion for mixing the gas flowing in from the gas inlet 18 and the liquid in the flow path in a relatively pressurized state, and transporting the mixed gas and liquid. The pipe line 22 which is a part is connected. The pipe line 22 may be a steel pipe or a flexible pipe, and its outer diameter can be arbitrarily set in consideration of the pressure difference between the throat portion 12 and the pipe 22. Has been formed. A nozzle portion 26 having a plurality of nozzle openings 24 is attached to the tip of the conduit 22.
【０００９】この実施例の浮遊粒子浮上分離装置は、図
４に示すように、船３０に気液溶解混合器１０を取り付
け湖沼等に浮かべて使用されるもので、ポンプ３２によ
り吸引管路３４を介して、湖水３６を吸引し、気液溶解
混合器１０に送り込むものである。また、管路２２の先
端に設けられたノズル部２６は、浮遊粒子が分布してい
る水中の下層部に沈められる。尚、水中に沈められる部
分は、ノズル部２６ではなく、このノズル部２６から鋼
管又はフレキシブルな管路等を用いて延長された気液放
出部であっても良い。As shown in FIG. 4, the floating particle flotation / separation apparatus of this embodiment is used by attaching a gas-liquid dissolution mixer 10 to a ship 30 and floating it in a lake or the like. The lake water 36 is sucked through the above and sent to the gas-liquid dissolution mixer 10. Further, the nozzle portion 26 provided at the tip of the conduit 22 is submerged in the lower layer portion of the water in which the suspended particles are distributed. The portion submerged in water may be not the nozzle portion 26 but a gas-liquid discharge portion extended from the nozzle portion 26 by using a steel pipe or a flexible pipe line.
【００１０】この実施例の浮遊粒子浮上分離方法と装置
の動作作用について以下に説明する。先ず、気液混合液
を作るために湖水３６を吸引管路３４を介してポンプ３
２により、気液溶解混合器１０に圧送する。気液溶解混
合器１０に流入した液体は、ベンチュリ管１４ののど部
１２で加速されて、一旦静圧が低下し、広がり部１６を
経て流速が遅くなり再び静圧が増大する。この時、気体
流入口１８は、のど部１２のわずかに下流側であり、こ
の部分の静圧は相対的に負圧になっているため、気体が
流路中に流入する。この気体流入口１８をのど部１２に
配置しないのは、のど部１２が最も静圧が低くなる部分
ではあるが、のど部１２に気体流入口１８を設けると、
気体の吸込みが良くなく、流路が広がり始めた個所の方
が気体が流入しやすいためである。The operation of the floating particle floating separation method and apparatus of this embodiment will be described below. First, the lake water 36 is pumped through the suction pipe 34 to make a gas-liquid mixture.
2, the gas-liquid dissolution mixer 10 is pressure-fed. The liquid flowing into the gas-liquid dissolution mixer 10 is accelerated in the throat portion 12 of the Venturi tube 14, the static pressure is once reduced, and the flow velocity is slowed through the widening portion 16 and the static pressure is increased again. At this time, the gas inlet port 18 is slightly downstream of the throat portion 12, and the static pressure in this portion is relatively negative, so that gas flows into the flow path. Although the gas inlet 18 is not arranged in the throat portion 12 in the portion where the static pressure is the lowest in the throat portion 12, when the gas inlet port 18 is provided in the throat portion 12,
This is because the gas is not well sucked in and the gas is more likely to flow into the portion where the flow path has started to spread.
【００１１】気体流入口１８から流入した気体は、気泡
となって流路中の液体とともに管路２２に流れ、気泡と
なった気体は、管路２２の静圧がのど部１２より高いの
で液体中に溶解していく。そして、管路２２からノズル
口２４を経て気泡とともに液体が噴射される。ノズル口
２４を通過する際には、液体は再び加速されるので、そ
の静圧は低くなり、液体中に溶解していた気体が数ミク
ロン〜数十ミクロンの微小気泡として析出する。さら
に、溶解しきらない気泡も、ノズル２４で加速される際
に流れの乱れ等により、細分化され、数十ミクロンから
数百ミクロンの小径な気泡となって液体とともに噴射さ
れる。従って、気液溶解混合器１０から噴射された気泡
は、湖水３６中に数ミクロンから数百ミクロンの幅広い
範囲の径の微小気泡として分散する。The gas flowing from the gas inflow port 18 flows into the pipe line 22 together with the liquid in the flow path as bubbles, and the gas formed into bubbles is a liquid because the static pressure of the pipe line 22 is higher than that of the throat portion 12. Dissolves in. Then, the liquid is ejected from the conduit 22 through the nozzle port 24 together with the bubbles. Since the liquid is accelerated again when passing through the nozzle port 24, its static pressure becomes low, and the gas dissolved in the liquid is deposited as fine bubbles of several microns to several tens of microns. Furthermore, the bubbles that are not completely dissolved are subdivided due to turbulence of the flow when being accelerated by the nozzle 24, and become bubbles with a small diameter of several tens to several hundreds of microns and are ejected together with the liquid. Therefore, the bubbles ejected from the gas-liquid dissolution mixer 10 are dispersed in the lake water 36 as fine bubbles having a wide range of diameters from several microns to several hundreds of microns.
【００１２】湖水３６中に放出された気泡は、図２に示
すように、浮遊粒子３８に付着する。浮遊粒子３８に付
着する気泡は、大小さまざまの大きさであり、図示する
ように、比較的大きい気泡４０から小さい気泡４２まで
さまざまな気泡が浮遊粒子３８に付着する。気泡４０，
４２が付着した浮遊粒子３８は、大きい気泡４０の浮力
により素早く浮上させられ、水面付近に上昇する。そし
て、大きい気泡４０は、図３に示すように、水面４４に
達すると 浮遊粒子３８から離れ大気中に消えてしま
う。しかし、浮遊粒子３８には、小さい気泡４２が付着
し続けているので、水面直下で長時間漂っている。The bubbles released into the lake water 36 adhere to the suspended particles 38, as shown in FIG. The bubbles adhering to the suspended particles 38 have various sizes, and as shown, various bubbles from the relatively large bubbles 40 to the small bubbles 42 adhere to the suspended particles 38. Bubble 40,
The floating particles 38 to which 42 is attached are quickly floated by the buoyancy of the large bubbles 40 and rise to the vicinity of the water surface. Then, as shown in FIG. 3, the large bubbles 40 separate from the suspended particles 38 and disappear into the atmosphere when they reach the water surface 44. However, since the small bubbles 42 continue to adhere to the suspended particles 38, they float around immediately below the water surface for a long time.
【００１３】この実施例の浮遊粒子浮上分離方法と装置
を利用して、アオコを浮上させる実験を行いこれをビデ
オマイクロスコープにより観察したところ、アオコ粒子
が大きい気泡により引っ張られて素早く水面まで上昇
し、その後大きい気泡が離れ、アオコ粒子の下部に付着
している小さい気泡によって水面直下にアオコ粒子が位
置している様子が観察された。Using the method and apparatus for floating particles floating in this example, an experiment for floating algal blooms was carried out and observed with a video microscope. As a result, the algal particles were quickly pulled up to the water surface by large bubbles. Then, it was observed that the large bubbles separated and the small bubbles adhering to the lower part of the blue-green particles positioned the blue-green particles directly under the water surface.
【００１４】この実施例の浮遊粒子浮上分離方法と装置
によれば、気液溶解混合器１０を用いて、微小な気泡か
ら相対的に大きな気泡まで幅広い範囲の気泡を水中に発
生させることが出来、効率よく浮遊粒子を浮上させるこ
とができる。しかも、浮上させた浮遊粒子を確実に水面
直下に維持させることが出来、効率よく浮遊粒子の除去
が可能になるものである。According to the floating particle floating separation method and apparatus of this embodiment, the gas-liquid dissolution mixer 10 can be used to generate bubbles in a wide range from minute bubbles to relatively large bubbles in water. The suspended particles can be efficiently levitated. Moreover, the floating particles that have been floated can be reliably maintained immediately below the water surface, and the floating particles can be efficiently removed.
【００１５】次にこの発明の第二実施例について図５を
基にして説明する。ここで、上述の実施例と同様の部材
は同一符号を付して説明を省略する。この実施例の浮遊
粒子浮上分離装置は、陸上４６に気液溶解混合器１０を
設置し、管路２２を介してノズル部２６を水中に位置さ
せたものである。また、ノズル部２６を陸上又は水面上
に設け、その先端にさらに管路を接続し、その管路の先
端部に気液混合液を噴射する放出部を設けて水中に位置
させても良く、管路を鋼管又はフレキシブルな管の何れ
により形成しても良いものである。Next, a second embodiment of the present invention will be described with reference to FIG. Here, the same members as those in the above-described embodiment are designated by the same reference numerals, and the description thereof will be omitted. In the floating particle flotation / separation device of this embodiment, the gas-liquid dissolution mixer 10 is installed on the land 46, and the nozzle portion 26 is positioned in water via the conduit 22. Further, the nozzle portion 26 may be provided on land or on the surface of water, and a pipe line may be further connected to the tip thereof, and a discharge portion for injecting a gas-liquid mixed liquid may be provided at the tip portion of the pipe line to be located in water. The pipeline may be formed of either a steel pipe or a flexible pipe.
【００１６】次にこの発明の第三実施例について図６、
図７を基にして説明する。ここで、上述の実施例と同様
の部材は同一符号を付して説明を省略する。この実施例
の浮遊粒子浮上分離装置は、水中に沈められる本体５０
の中に、液体流入口５２、ポンプ３２、のど部１２、広
がり部１６及び、気液を混合させる混合部５４を形成
し、混合部５４の先端にノズル孔２４を設けたものであ
る。さらに、広がり部１６には、上記と同様に、気体吸
引管５６の端部に接続した気体流入口１８が形成されて
いる。Next, a third embodiment of the present invention will be described with reference to FIG.
Description will be made based on FIG. 7. Here, the same members as those in the above-described embodiment are designated by the same reference numerals, and the description thereof will be omitted. The suspended particle flotation device of this embodiment has a body 50 that is submerged in water.
A liquid inlet 52, a pump 32, a throat portion 12, a spreading portion 16 and a mixing portion 54 for mixing gas and liquid are formed therein, and a nozzle hole 24 is provided at the tip of the mixing portion 54. Further, in the expanded portion 16, a gas inlet port 18 connected to the end portion of the gas suction pipe 56 is formed as in the above.
【００１７】この実施例の浮遊粒子浮上分離装置によれ
ば、装置全体を小さく形成することができる。また、本
体５０に空気ボンベを内蔵させることにより、気体吸引
管を省略することもできる。さらに、この実施例の浮遊
粒子浮上分離装置は、気液混合液の噴射による反作用
で、噴射方向と逆方向に進むので、効率よく液体を吸引
することができるものである。また、舵を付けることに
より、水中を自由に航行させることもできる。According to the suspended particle floating separation device of this embodiment, the entire device can be made small. Further, by incorporating an air cylinder in the main body 50, the gas suction pipe can be omitted. Furthermore, the suspended particle levitation separation apparatus of this embodiment is capable of efficiently sucking the liquid because it reacts with the injection of the gas-liquid mixed liquid and proceeds in the direction opposite to the injection direction. In addition, by steering the rudder, it is possible to freely navigate in water.
【００１８】尚、この発明の浮遊粒子浮上分離方法と装
置は、気液溶解混合器を用いて、幅広い範囲の大きさの
気泡を発生させ、液体中の浮遊物を効率よく浮上させる
もので、液体や浮遊粒子の種類は問わない。例えば、上
記実施例の他に、インクや塗料中の色素粒子の除去や、
再生紙の製造工程中のインク等の除去にも利用できるも
のである。また、液体中に気泡とともに、凝集剤や、浮
撰用界面活性剤や中和剤等の薬剤を混合させても良いも
のである。これらの薬剤を、気体供給用の管路を用いて
液中に気体とともに吸引させても良い。また、薬剤を注
入させるために気体流入口または薬剤注入口等を複数設
けても良い。これにより、より効率よく浮上させること
ができ、又湖沼等の汚染を防止することができるもので
ある。The suspended particle floating separation method and apparatus according to the present invention uses a gas-liquid dissolution mixer to generate bubbles in a wide range of sizes to efficiently float suspended matter in a liquid. The type of liquid or suspended particles does not matter. For example, in addition to the above embodiment, removal of pigment particles in ink or paint,
It can also be used to remove ink and the like during the manufacturing process of recycled paper. In addition to the air bubbles, the liquid may be mixed with a flocculant, a surfactant for floating, a neutralizing agent or the like. These agents may be sucked into the liquid together with the gas by using a gas supply conduit. Further, a plurality of gas inflow ports or drug injection ports may be provided to inject the drug. This makes it possible to levitate more efficiently and prevent pollution of lakes and marshes.
【００１９】[0019]
【発明の効果】この発明の浮遊粒子浮上分離方法によれ
ば、数ミクロンから数百ミクロンの気泡を液体中に形成
し、液体中の浮遊粒子を比較的大きな気泡により捕らえ
て浮上させ、浮上した浮遊粒子を相対的に小さい気泡の
浮力により浮上位置を維持させる様にしたので、効率よ
く短時間で浮遊粒子を水面下に浮上させることができ、
しかも、水面下で浮遊粒子が浮力を維持して漂い、分離
回収等を容易にするものである。According to the floating particle levitation separation method of the present invention, bubbles of several microns to several hundreds of microns are formed in a liquid, and the floating particles in the liquid are caught by the relatively large bubbles and floated. Since the floating particles are made to maintain the floating position by the buoyancy of relatively small bubbles, the floating particles can be efficiently floated below the water surface in a short time.
Moreover, floating particles maintain buoyancy under the surface of the water and float, facilitating separation and recovery.
【００２０】また、この発明の浮遊粒子浮上分離装置
は、気液溶解混合器を用いて、簡単な構成で幅広い範囲
の大きさの気泡を形成し、液体中の浮遊粒子を効率よく
浮上させることができるものである。又、比較的小型の
装置にすることができ搬送等も容易であり、さらに、湖
沼の水から種々の化学品等の浄化分別等に幅広く利用で
きるものである。Further, the suspended particle levitation separation apparatus of the present invention uses a gas-liquid dissolution mixer to form bubbles in a wide range of sizes with a simple structure and efficiently floats suspended particles in a liquid. Is something that can be done. Further, it can be made into a relatively small-sized device and can be easily transported, and further, it can be widely used for purification and separation of various chemicals from lake water.
【図１】この発明の浮遊粒子浮上分離装置の気液溶解混
合器の縦断面図である。FIG. 1 is a vertical cross-sectional view of a gas-liquid dissolution mixer of a suspended particle floating separation device of the present invention.
【図２】この実施例の浮遊粒子浮上分離方法により浮上
する浮遊粒子を示す図である。FIG. 2 is a diagram showing floating particles floating by the floating particle floating separation method of this example.
【図３】この実施例の浮遊粒子浮上分離方法により浮上
した浮遊粒子を示す図である。FIG. 3 is a diagram showing suspended particles floated by the suspended particle floating separation method of this example.
【図４】この実施例の浮遊粒子浮上分離装置の概略図で
ある。FIG. 4 is a schematic view of a suspended particle floating separation device of this embodiment.
【図５】この発明の浮遊粒子浮上分離装置の第二実施例
の概略図である。FIG. 5 is a schematic view of a second embodiment of the suspended particle floating separation device of the present invention.
【図６】この発明の浮遊粒子浮上分離装置の第三実施例
の概略図である。FIG. 6 is a schematic view of a third embodiment of the suspended particle floating separation device of the present invention.
【図７】この実施例の浮遊粒子浮上分離装置の縦断面図
である。FIG. 7 is a vertical cross-sectional view of the suspended particle levitation separation device of this embodiment.
１０ 気液溶解混合器 １２ のど部 １６ 広がり部 １８ 気体流入口 ２２ 管路 ２４ ノズル口 ２６ ノズル部 10 Gas-Liquid Dissolving Mixer 12 Throat 16 Spreading Part 18 Gas Inlet 22 Pipeline 24 Nozzle Port 26 Nozzle
───────────────────────────────────────────────────── フロントページの続き (72)発明者 堀 登紀男 大阪府大阪市淀川区三国本町１丁目10番40 号 和泉電気株式会社内 (72)発明者 柏 雅一 大阪府大阪市淀川区三国本町１丁目10番40 号 和泉電気株式会社内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tokio Hori 1-10-40 Mikunihonmachi, Yodogawa-ku, Osaka-shi, Izumi Electric Co., Ltd. (72) Inventor Masakazu Kashiwa Mikuni-honcho, Yodogawa-ku, Osaka-shi, Osaka 1-10-40 Izumi Electric Co., Ltd.
Claims (4)
気泡を同時に液体中に形成し、液体中の浮遊粒子を比較
的大きな気泡により捕らえて浮上させ、浮上した浮遊粒
子を相対的に小さい気泡の浮力により浮上位置を維持さ
せることを特徴とする液体中の浮遊粒子浮上分離方法。1. A bubble having a size of several microns to several hundreds of microns is formed in a liquid at the same time, floating particles in the liquid are caught by a relatively large bubble and floated, and the floating particles floating are relatively small bubbles. A method for levitation separation of suspended particles in a liquid, characterized in that the floating position is maintained by the buoyancy of the.
の途中が絞られた絞り部を有した気液溶解混合器を用
い、気体を溶解させるとともに薬剤を液体中に混合する
ことを特徴とする請求項１記載の液体中の浮遊粒子浮上
分離方法。2. When mixing a gas into the liquid, a gas-liquid dissolution mixer having a narrowed portion in the middle of the pipe is used to dissolve the gas and mix the drug into the liquid. The floating particle floating separation method in a liquid according to claim 1, characterized in that.
を設け、この気液溶解混合器に、液体流路に設けられた
絞り部と、この絞り部のわずかに下流側に設けられた気
体流入口と、上記絞り部から続いて管路を徐々に広げた
広がり部とを設け、この広がり部の下流に設けられ流路
中の液体と上記気体流入口から流入した気体とを混合す
る混合部と、この混合部の出口側に設けられて浮遊粒子
が存在する液体中に数ミクロンから数百ミクロンの大き
さの気泡を噴射させるノズル部とを設けたことを特徴と
する液体中の浮遊粒子浮上分離装置。3. A gas-liquid dissolution mixer for mixing a liquid and a gas is provided, and the gas-liquid dissolution mixer is provided with a throttle portion provided in a liquid flow path and slightly downstream of the throttle portion. A gas inflow port and a widening part that gradually widens the pipe line from the narrowed part, and mixes the liquid in the flow channel provided downstream of this widening part with the gas flowing in from the gas inflowing port. In the liquid, the mixing section and the nozzle section that is provided on the outlet side of the mixing section and that injects bubbles of a size of several microns to several hundreds of microns into the liquid in which suspended particles are present Floating particle flotation device.
を、混合部を兼ねた管路で接続したことを特徴とする請
求項３記載の液体中の浮遊粒子浮上分離装置。4. The floating particle floating separation apparatus in liquid according to claim 3, wherein the gas-liquid dissolution mixer and the nozzle section are connected by a pipe line which also serves as a mixing section.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4275159A JP2529174B2 (en) | 1992-09-17 | 1992-09-17 | Method and device for floating separation of suspended particles in liquid |
| PCT/JP1993/000629 WO1993023340A1 (en) | 1992-05-14 | 1993-05-12 | Method and apparatus for dissolving a gas into and mixing the same with a liquid |
| DE1993629061 DE69329061T2 (en) | 1992-05-14 | 1993-05-12 | DEVICE FOR SOLVING A GAS IN OR MIXING A LIQUID |
| US08/090,108 US5514267A (en) | 1992-05-14 | 1993-05-12 | Apparatus for dissolving a gas into and mixing the same with a liquid |
| EP19930910333 EP0639160B1 (en) | 1992-05-14 | 1993-05-12 | Apparatus for dissolving a gas into and mixing the same with a liquid |
| TW82109262A TW238259B (en) | 1992-05-14 | 1993-11-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4275159A JP2529174B2 (en) | 1992-09-17 | 1992-09-17 | Method and device for floating separation of suspended particles in liquid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0699167A true JPH0699167A (en) | 1994-04-12 |
| JP2529174B2 JP2529174B2 (en) | 1996-08-28 |
Family
ID=17551500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4275159A Expired - Fee Related JP2529174B2 (en) | 1992-05-14 | 1992-09-17 | Method and device for floating separation of suspended particles in liquid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2529174B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07290042A (en) * | 1994-04-29 | 1995-11-07 | Idec Izumi Corp | Waste water treating device |
| KR101042554B1 (en) * | 2009-04-14 | 2011-06-20 | 주식회사 펨빅스 | Apparatus and method feeding powder into pressured gas fluid pipes |
| JP2013128869A (en) * | 2011-12-20 | 2013-07-04 | Nomura Micro Sci Co Ltd | Gas dissolved water producing apparatus and method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1444026A (en) * | 1973-08-02 | 1976-07-28 | Water Res Centre | Method of clarifying impure water |
| JPS5326462A (en) * | 1976-08-24 | 1978-03-11 | Kurita Water Ind Ltd | Apparatus for treatment of floating separation |
| JPS61171587A (en) * | 1985-01-22 | 1986-08-02 | Fuso Kensetsu Kogyo Kk | Air bubble generation apparatus in pressure float type water treatment |
| JPH01130776A (en) * | 1987-11-16 | 1989-05-23 | Toshimi Nagata | Treatment of organic waste water |
-
1992
- 1992-09-17 JP JP4275159A patent/JP2529174B2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1444026A (en) * | 1973-08-02 | 1976-07-28 | Water Res Centre | Method of clarifying impure water |
| JPS5326462A (en) * | 1976-08-24 | 1978-03-11 | Kurita Water Ind Ltd | Apparatus for treatment of floating separation |
| JPS61171587A (en) * | 1985-01-22 | 1986-08-02 | Fuso Kensetsu Kogyo Kk | Air bubble generation apparatus in pressure float type water treatment |
| JPH01130776A (en) * | 1987-11-16 | 1989-05-23 | Toshimi Nagata | Treatment of organic waste water |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07290042A (en) * | 1994-04-29 | 1995-11-07 | Idec Izumi Corp | Waste water treating device |
| KR101042554B1 (en) * | 2009-04-14 | 2011-06-20 | 주식회사 펨빅스 | Apparatus and method feeding powder into pressured gas fluid pipes |
| JP2013128869A (en) * | 2011-12-20 | 2013-07-04 | Nomura Micro Sci Co Ltd | Gas dissolved water producing apparatus and method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2529174B2 (en) | 1996-08-28 |
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