JPS5817823A - Device for finely dividing and dispersing gaseous bubble - Google Patents

Device for finely dividing and dispersing gaseous bubble

Info

Publication number
JPS5817823A
JPS5817823A JP56115540A JP11554081A JPS5817823A JP S5817823 A JPS5817823 A JP S5817823A JP 56115540 A JP56115540 A JP 56115540A JP 11554081 A JP11554081 A JP 11554081A JP S5817823 A JPS5817823 A JP S5817823A
Authority
JP
Japan
Prior art keywords
gas
rotating body
liquid
inert gas
tank
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
Application number
JP56115540A
Other languages
Japanese (ja)
Other versions
JPS6045929B2 (en
Inventor
Kozo Arai
新井　浩三
Yoshitatsu Otsuka
良達 大塚
Shigemi Tanimoto
谷本　繁美
Masashi Sakaguchi
雅司 坂口
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Altemira Co Ltd
Original Assignee
Showa Aluminum Corp
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 Showa Aluminum Corp filed Critical Showa Aluminum Corp
Priority to JP56115540A priority Critical patent/JPS6045929B2/en
Publication of JPS5817823A publication Critical patent/JPS5817823A/en
Publication of JPS6045929B2 publication Critical patent/JPS6045929B2/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/233—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B01F23/2336—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the location of the place of introduction of the gas relative to the stirrer
    • B01F23/23362—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the location of the place of introduction of the gas relative to the stirrer the gas being introduced under the stirrer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/115—Stirrers characterised by the configuration of the stirrers comprising discs or disc-like elements essentially perpendicular to the stirrer shaft axis
    • B01F27/1154—Stirrers characterised by the configuration of the stirrers comprising discs or disc-like elements essentially perpendicular to the stirrer shaft axis the discs being cup shaped, e.g. semi sphere

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

PURPOSE:To finely disperse inert gas in the inside of liquid and to improve a gas-liquid contacting efficiency, by rotating a rotary body, having a flat bottom surface and grooves in its peripheral part, and feeding the inert gas from the lower part of said bottom surface, while dispersing the gas finely into the inside of the liquid. CONSTITUTION:Inert gas such as Ar is blown into a molten Al 4 filled into a tank 1 to remove gaseous hydrogen, etc. and non-metallic matters both contained in the molten Al 4 while entraining accompany said gas and nonmetallic matters by gas bubble. In this case, a rotary body 3 for finely dividing and dispersing the gas bubbles, which has a flat bottom surface 8 and an upper surface 7 formed into a projectingly spherical surface and a peripheral part 11 equipped with plural grooves, is rotated in the inside of the Al molten metal 4, and the inert gas is jetted from the lower central part of the surface 8 through an opening 10 of a gas feeding pipe 11. The inert gas moves to the peripheral part along the bottom surface of the body 3 by an centrifugal force and rises through the vertical grooves 12 to be divided into fine bubbles and rises in the molten metal 4 while being dispersed keeping an excellent contacting-effieiency.

Description

【発明の詳細な説明】 この発明は気泡の微細化分散装置に関する。[Detailed description of the invention] The present invention relates to a bubble atomization and dispersion device.

アルミニウム溶湯中に窒素ガスやアルゴンカスのような
不活性ガスを気泡状態で放出し、アルミニウム溶湯中の
水素などのガスやアルミニウム、マグネシウムの酸化物
などの介在物を除去する方法や、またたとえば化学反応
を促進するため、液体中に気体をバブリングする気液接
触方法がある。そしてこれらいずれの場合にも気体と液
体との接触を良好なものとするためには、気泡をできる
だけ微細化し、液中に均一に分散させることが要請せら
れる。A method of releasing inert gas such as nitrogen gas or argon gas in the form of bubbles into the molten aluminum to remove gases such as hydrogen and inclusions such as aluminum and magnesium oxides in the molten aluminum, and a chemical reaction, for example. In order to promote this, there is a gas-liquid contact method in which gas is bubbled into the liquid. In any of these cases, in order to achieve good contact between the gas and the liquid, it is necessary to make the bubbles as fine as possible and to disperse them uniformly in the liquid.

この発明の目的は、上記の要請にこたえるとともに、構
造が簡単で操作の容易な気泡の微細化分散装置を提供す
ることにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a bubble atomization and dispersion device that meets the above requirements, has a simple structure, and is easy to operate.

以下、この発明を図面の実施例により具体的に説明する
。Hereinafter, the present invention will be specifically explained with reference to embodiments of the drawings.

第１図、第２図において、この発明による気泡の微細化
分散装置は、槽（＾）と、同種（１）内に配置された回
転軸（２）と、同回転軸（２）の下端に取付けられた気
泡微細化分散用回転体（３）と、同種（１）の底部に配
された気体供給管（５）とからなる、槽（１）内にはア
ルミニウム溶湯（４）が入れられている。In FIGS. 1 and 2, the bubble atomization and dispersion device according to the present invention includes a tank (^), a rotating shaft (2) disposed in the same type (1), and a lower end of the rotating shaft (2). Molten aluminum (4) is placed in the tank (1), which consists of a rotating body (3) for air bubble refinement and dispersion attached to the tank (1), and a gas supply pipe (5) placed at the bottom of the same type (1). It is being

そして回転体（３）は同溶湯（４）中において、槽底と
所要間隔を置いて位蓋している。回転軸（２）は上端に
て回転駆動装置によ゛つ、て回転せられるようになされ
ている。同軸（２）の下端部には雄ねじ（６）が刻設さ
れている。また回転体（３）は上面から見て円形であっ
て、頂面（７）は突球面となされ、底面（８）は平坦面
となされている。回転体（３）の頂部中央には垂直に雌
ねじ部（９）が形成されている。The rotating body (3) is placed in the molten metal (4) with a required distance from the bottom of the tank and covered. The rotating shaft (2) is adapted to be rotated at its upper end by a rotary drive device. A male thread (6) is cut into the lower end of the coaxial shaft (2). Further, the rotating body (3) has a circular shape when viewed from the top, the top surface (7) is a convex spherical surface, and the bottom surface (8) is a flat surface. A female thread (9) is vertically formed at the center of the top of the rotating body (3).

そしてこれが回転軸（２）の雄ねじ部（６）にねじ合さ
れることにより、回転体（３）が回転軸（２）の下端に
取付けられている。回転体（３）の周縁（１１１には、
複数の垂直溝０２が、等間隔おきに形成されている。The rotating body (3) is attached to the lower end of the rotating shaft (2) by screwing this into the male threaded portion (6) of the rotating shaft (2). The periphery of the rotating body (3) (111 includes
A plurality of vertical grooves 02 are formed at regular intervals.

また気体供給管（５）の開口ααは回転体（３）の底面
中（？ン 央部１；真下から臨ませられている。回転体′の底面と
気体供給管（５）の開口ａαの間隔は、小さい方が有利
であり、通常５０■以内である。Further, the opening αα of the gas supply pipe (5) is faced from directly below the bottom surface of the rotor (3). The smaller the spacing is, the more advantageous it is, and is usually within 50 square meters.

上記構成の気泡の微細化分散装置において、回転体（２
）は駆動装置により高速回転せられ、気体供給管（５）
には気体供給装置から不活性ガスが導入される。不活性
ガスは開口叫を経て、回転体（３）の底面（８）に供給
される。すると、不活性ガスは回転体（３）の底面（８
）に沿って中央部から周縁に拡がり、液圧によって回転
体（３）の底面（８）に沿れて回転体（３）の周縁から
放散される。さらに放散気泡は垂直溝Ｏ２によって砕か
ｎて九一層微細化される。また垂直溝（１２１によって
液がよく撹拌され、そのため気泡が槽内金体に均一に分
散せられる。In the bubble atomization and dispersion device configured as described above, the rotating body (2
) is rotated at high speed by a drive device, and the gas supply pipe (5)
Inert gas is introduced from a gas supply device. The inert gas is supplied to the bottom surface (8) of the rotating body (3) through an opening. Then, the inert gas spreads to the bottom surface (8) of the rotating body (3).
) from the center to the periphery, and is dissipated from the periphery of the rotating body (3) along the bottom surface (8) of the rotating body (3) due to hydraulic pressure. Further, the diffused bubbles are crushed by the vertical grooves O2 and made into 91-layer fine particles. Further, the liquid is well stirred by the vertical grooves (121), so that air bubbles are uniformly dispersed in the metal bodies in the tank.

なお、回転体（３）の頂面（７）は突球面となさｎてい
るため、液は第１図に矢印（４）で示すように、槽内の
ほぼ全体を回流する。この液の流ｎによって、微細化気
泡が槽内に均一に分散せらｎる。Since the top surface (7) of the rotating body (3) is a convex spherical surface, the liquid circulates almost throughout the tank as shown by the arrow (4) in FIG. This flow of liquid causes the fine bubbles to be uniformly dispersed within the tank.

なお、回転体（３）の頂面（７）は突球面に限定される
ものではなく、たとえば下方に末広がり状の面でもよい
。Note that the top surface (7) of the rotating body (3) is not limited to a convex spherical surface, and may be, for example, a surface that widens downward.

第３図は回転体の？５１変形例を示すもので１回転体（
３）の頂面（７）に頂部放射溝α３）が形成され、こｎ
らがそｎぞれ垂直構図に連通している。この場合頂部放
射溝α３によって気泡の微細化が一層助長され、また間
溝１１３）によって液がよ（撹拌されるため、気泡の均
一分散効果もさらに向上する。また第３図に鎖線で示す
ように、回転体（３）の周縁にて各頂部放射溝（１３１
の間にこれらに連通しない垂直溝−が形成さ几てもよ、
い。Figure 3 shows a rotating body? 51 This shows a modified example of a one-rotating body (
A top radial groove α3) is formed on the top surface (7) of 3).
These are connected to each other in a vertical composition. In this case, the top radial groove α3 further promotes the miniaturization of the bubbles, and the liquid is stirred by the gap groove 113), which further improves the uniform dispersion effect of the bubbles.Also, as shown by the chain line in FIG. At the periphery of the rotating body (3), each top radial groove (131
A vertical groove that does not communicate with these may be formed between them.
stomach.

第４図、第５図は回転体の第２の変形例を示すもので、
回転体（３）の底面（８）の中央部に凹所（１５１が形
成さｎている。この場合中空部から供給さｎた気体は、
一旦四所Ｑ５１内に溜って貯溜層を形成する。そして回
転体（３）の回転により、同層が細分化さらに微細化さ
れながら周縁方向に放出される。そのため一層微細な気
泡が形成される。Figures 4 and 5 show a second modification of the rotating body.
A recess (151) is formed in the center of the bottom surface (8) of the rotating body (3). In this case, the gas supplied from the hollow part is
Once it accumulates in the four places Q51, it forms a reservoir layer. Then, as the rotating body (3) rotates, the same layer is finely divided and discharged toward the circumferential edge. Therefore, even finer bubbles are formed.

第６図、第７図は回転体の第３の変形例を示すもので、
回転体（３）の底面（８）に底部放射溝叫が形成されて
いる。この場合回転体（３）の底面（８）に形成された
気体層は、底部放射溝（１６１によって砕かれて、細”
分化さらに微細化される。したがって気泡の微細化が一
層助長される。また底部放射溝α印によっても液がよく
撹拌されるため、気泡の均一分散効果もさらに向上する
。Figures 6 and 7 show a third modification of the rotating body.
A bottom radial groove is formed on the bottom surface (8) of the rotating body (3). In this case, the gas layer formed on the bottom surface (8) of the rotating body (3) is broken up by the bottom radial groove (161) and becomes thin.
Differentiation and further refinement. Therefore, the miniaturization of bubbles is further promoted. In addition, since the liquid is well stirred by the bottom radial groove α, the effect of uniformly dispersing bubbles is further improved.

第８図、第９図は回転体の第４の変形例を示すもので、
回転体（３）の底面（８）の中央部に凹所αωが形成さ
れるとともに、凹所（１５１から底面（８）の周縁に底
部放射溝αｅが形成されている。この場合第２変形例と
第３変形例を合せた作用が発揮される。Figures 8 and 9 show a fourth modification of the rotating body,
A recess αω is formed in the center of the bottom surface (8) of the rotating body (3), and a bottom radial groove αe is formed from the recess (151) to the periphery of the bottom surface (8). In this case, the second deformation A combined effect of the example and the third modification is achieved.

第３および第４変形例において底部放射溝α旬は気泡の
案内溝としての役目も果すため、気泡が回転体（３）か
ら放射状に放出される。したがって気泡が槽内において
局在することがなく１この点でも均一分散が達せられる
。In the third and fourth modifications, the bottom radial grooves also serve as bubble guide grooves, so that the bubbles are radially released from the rotating body (3). Therefore, bubbles are not localized in the tank, and uniform dispersion can be achieved in this respect as well.

この発明による気泡の微細化分散装置において、気泡を
できるだけ微細化し、均一に液中に放出するためには、
回転体の形状および大きさ、回転速度、回転体の槽底か
らの距離等が重要な因子となる。回転体の形状は円盤状
が好ましい。In the bubble dispersion device according to the present invention, in order to make the bubbles as fine as possible and release them uniformly into the liquid,
Important factors include the shape and size of the rotating body, the rotation speed, and the distance from the bottom of the tank. The shape of the rotating body is preferably a disc.

回転体の直径は大きい方が好ましい。回転速度は大きい
方が好ましく、通常７００〜３０００ｒ、ｐ、ｍが良好
である。回転速度が７０　Ｏｒ、ｐ、ｍ未満では気泡が
微細化せず、３０００ｒ、ｐ、ｍを越えると回転軸のま
わりに渦流が発生し、液面に浮上している反応生成物や
不純物等が液中に巻込まｎ１液に悪影響を及ぼすことが
ある。渦流を防止するには槽内にバッフル板を配置する
とよい。回転体の底面と槽底との距離は５〜１００鵡が
好ましい。５１Ｉｌｓ未満では、回転体が槽底に接触す
る危険性があり、１００−を越えると槽の全体に気泡が
行き渡らないことがあるとともに１液中の各部における
微細気泡の密度が不均一になるおそｎがある。気体の供
給圧力は静水圧以上必要である。気体供給′量は槽の大
きさにより決められるが、少ないと気液接触が不充分に
なり、逆に多すぎると気泡の微細化が困難になって気液
接触効率が悪くなる。It is preferable that the rotating body has a larger diameter. The higher the rotation speed, the better, and usually 700 to 3000 r, p, m is good. If the rotation speed is less than 70 Or, p, m, bubbles will not become fine, and if it exceeds 3000 r, p, m, a vortex will be generated around the rotation axis, and reaction products and impurities floating on the liquid surface will be removed. It may get caught up in the liquid and have an adverse effect on the n1 liquid. To prevent swirling currents, it is recommended to place a baffle plate inside the tank. The distance between the bottom surface of the rotating body and the tank bottom is preferably 5 to 100 meters. If it is less than 51 Ils, there is a risk that the rotating body will come into contact with the bottom of the tank, and if it exceeds 100 Ils, the bubbles may not be distributed throughout the tank, and the density of microbubbles in each part of one liquid may become uneven. There is n. The gas supply pressure must be equal to or higher than the hydrostatic pressure. The amount of gas supplied is determined by the size of the tank, but if it is too small, gas-liquid contact will be insufficient, and if it is too large, it will be difficult to make the bubbles finer, resulting in poor gas-liquid contact efficiency.

この発明による気泡の微細化分散装置は、槽（１）内に
垂直回転軸（２）が宙吊り状に配置さｎ１同軸（２）の
下端に平坦底面（８）を有する気泡微細化分散用回転体
（３）が取付けられ、槽（１）の底部に気体供給管（５
）が配さｎて、その開口ａαが回転体（３）の底面中央
部に真下から臨ませられ、回転体（３）の周縁ｕ１１に
少なくとも１つの垂直溝ｕｚが形成されてなるものであ
るので、気体供給管（５）から回転体（３）の底面に供
給された気体は、同底面に沿って気体層を形成し、これ
が回転体（３）の遠心力によって細分化され、微細な気
泡が形成される。The bubble atomization and dispersion device according to the present invention has a vertical rotating shaft (2) suspended in a tank (1), and a flat bottom surface (8) at the lower end of the n1 coaxial shaft (2). A gas supply pipe (5) is attached to the bottom of the tank (1).
), the opening aα faces directly below the center of the bottom surface of the rotating body (3), and at least one vertical groove uz is formed in the periphery u11 of the rotating body (3). Therefore, the gas supplied from the gas supply pipe (5) to the bottom surface of the rotating body (3) forms a gas layer along the bottom surface, which is divided into fine particles by the centrifugal force of the rotating body (3). Air bubbles are formed.

ついで気泡は垂直溝αりによって破砕されて一層微細化
される。また液は垂直溝Ｑ２１によってよく撹拌されて
、気泡が槽内全体に均一に分散せられる。こうしてこの
発明によりば、簡単な構造の装置によって、気泡を著し
く微細化し、かつ槽内に均一に分散させることができる
。The bubbles are then crushed by the vertical grooves and made even finer. Further, the liquid is well stirred by the vertical groove Q21, and air bubbles are uniformly dispersed throughout the tank. Thus, according to the present invention, bubbles can be made extremely fine and uniformly dispersed within the tank using a device with a simple structure.

【図面の簡単な説明】[Brief explanation of drawings]

第１図はこの発明の実施例を示す縦断面図、第２図は第
１図上の■−■線に沿う断面図、第３図は回転体の第１
変形例を示す第２図相当の断面図、第４図および第５図
は回転体の第２変形例な示す縦断面図および底面図、第
６図およ、び第７図は回転体の第３変形例を示す縦断面
図および底面図、第８図および第９図は回転体の第４変
形例を示す縦断面図および底面図である。 （１）・・・槽、（２）＋１・・回転軸、（３）・・・
回転体、（４）・・・アルミニウム溶湯、（５）・・・
気体供給管、（８）・・Φ底面Ｘ叫−・・開口、ａｌｌ
ｅ・・周縁、Ｑ３ｅｅｅ垂直溝、［＋３１・・・頂部放
射溝、Ｑ５１・・・凹所１α６１ｏ・底部放射溝。 以　　上 外４名 第１図 第８図 第９図 昭和５６＋１：　１０月ｌ　口 特３ｉ′１庁長官島田春樹　殿′・、１１、　　ｉｌ　
ｌ’ｌ　　の人　・１、　　　　昭和５６年持重：′「
願　第　１１５５４０　　号２、究明の乙称　　　気泡
の微細化分散装置３、　Ｆｍ　ＩＥ　’ｉ’−ｉル８ 事ｆ″１°との関係　　　　特許出願人１１°　　所　
堺市海山町６丁２２４番地ショウワ 氏名°８″Ｎ　昭和アルミニウム株式会社４　　代　　
　理　　　人 外　　４　　名 へ　袖１１白？の口ｆ↑　　　昭和　　年　　１１　　
　口６、　　？、ｎ：ｌにより増加［るイこ１１１１の
数７　浦Ｉｒ、の５１７乏　　　明細書の発明の詳細な
説明の欄。 ８袖１１の内容 １３FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention, FIG. 2 is a sectional view taken along the line ■-■ in FIG. 1, and FIG.
4 and 5 are vertical sectional views and bottom views showing a second modification of the rotating body, and FIGS. 6 and 7 are views of the rotating body. FIGS. 8 and 9 are a longitudinal sectional view and a bottom view showing a third modification example, and FIGS. 8 and 9 are a longitudinal sectional view and a bottom view showing a fourth modification example of the rotating body. (1)...tank, (2)+1...rotating shaft, (3)...
Rotating body, (4)...molten aluminum, (5)...
Gas supply pipe, (8)...Φbottom X--...opening, all
e...Peripheral edge, Q3eee vertical groove, [+31...Top radial groove, Q51...Recess 1α61o/bottom radial groove. The other 4 people Figure 1 Figure 8 Figure 9 1978 + 1: October 1 Kutoku 3i'1 Director General Haruki Shimada Tono', 11, il
l'l person ・1, 1981 weight:'
Application No. 115540 2, Title of investigation: Microbubble dispersion device 3, Fm IE 'i'-i 8 Relationship with f″1° Patent applicant 11° Place
Showa Aluminum Co., Ltd. 4th generation Showa Aluminum Co., Ltd. 6-224 Kaiyama-cho, Sakai City Name: °8″N
Ri To 4 non-humans Sleeves 11 white? Mouth f↑ Showa 11
Mouth 6, ? , n: increased by l [Ruiko 1111 number 7 Ura Ir, no 517 Detailed description of the invention in the specification. 8 Sleeves 11 Contents 13

Claims (4)

【特許請求の範囲】[Claims] （１）　　槽（１）内に垂直回転軸（２）が宙吊り状に
配置さｔ’して１同軸（２）の下端に平坦底面＋８１　
Ｔｒ：有する気泡微細化分散用回転体（３）が取付けら
ｎ１槽ｆｉｌの底部に気体供給管（５）が配されて、そ
の開口ａαが回転体（３）の底面中央部に真下から臨ま
せられ、回転体（３）の周縁（１１１に少なくとも１つ
の垂直溝０２が形成さｎている気泡の微細化分散装置。(1) A vertical rotating shaft (2) is suspended in the tank (1) with a flat bottom surface +81 at the lower end of the coaxial shaft (2).
Tr: A gas supply pipe (5) is arranged at the bottom of the n1 tank fil to which the rotary body (3) for air bubble refinement and dispersion is attached, and its opening aα faces the center of the bottom surface of the rotary body (3) from directly below. A device for atomizing and dispersing air bubbles, in which at least one vertical groove 02 is formed on the periphery (111) of a rotating body (3). （２）回転体（３）の頂面（７）に頂部放射溝α３が形
成さｎている特許請求の範囲第１項記載の装置。(2) The device according to claim 1, wherein a top radial groove α3 is formed on the top surface (7) of the rotating body (3). （３）　　回転体（３）の底面（８）の中央部に凹所（
１ｓが形成されている特許請求の範囲第１または２項記
載の装置。(3) A recess (
3. The device according to claim 1 or 2, wherein 1s is formed. （４）　　回転体（３）の底面（８）に底部放射溝ａω
が形成されている特許請求の範囲第１〜３のうちいずれ
か１項記載の装置。(4) Bottom radial groove aω on the bottom surface (8) of the rotating body (3)
The device according to any one of claims 1 to 3, wherein: is formed.
JP56115540A 1981-07-22 1981-07-22 Microbubble dispersion device Expired JPS6045929B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56115540A JPS6045929B2 (en) 1981-07-22 1981-07-22 Microbubble dispersion device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56115540A JPS6045929B2 (en) 1981-07-22 1981-07-22 Microbubble dispersion device

Publications (2)

Publication Number Publication Date
JPS5817823A true JPS5817823A (en) 1983-02-02
JPS6045929B2 JPS6045929B2 (en) 1985-10-12

Family

ID=14665055

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56115540A Expired JPS6045929B2 (en) 1981-07-22 1981-07-22 Microbubble dispersion device

Country Status (1)

Country Link
JP (1) JPS6045929B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6134126A (en) * 1984-07-24 1986-02-18 Kobe Steel Ltd Treating method for molten aluminum and its alloy
US7669739B2 (en) 2002-12-21 2010-03-02 Foseco International Limited Rotary stirring device for treating molten metal
JP2015089957A (en) * 2013-11-06 2015-05-11 三井金属鉱業株式会社 Degassing apparatus, degassing method, agitator for molten metal and method for producing the same
JP2017113687A (en) * 2015-12-22 2017-06-29 アイシン精機株式会社 Gas-liquid mixer
JP2017154050A (en) * 2016-02-29 2017-09-07 株式会社メデック Rotor for agitation and agitation device
JP2018111089A (en) * 2017-01-13 2018-07-19 直樹 會田 Stirrer for stirring device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6134126A (en) * 1984-07-24 1986-02-18 Kobe Steel Ltd Treating method for molten aluminum and its alloy
US7669739B2 (en) 2002-12-21 2010-03-02 Foseco International Limited Rotary stirring device for treating molten metal
JP2015089957A (en) * 2013-11-06 2015-05-11 三井金属鉱業株式会社 Degassing apparatus, degassing method, agitator for molten metal and method for producing the same
JP2017113687A (en) * 2015-12-22 2017-06-29 アイシン精機株式会社 Gas-liquid mixer
JP2017154050A (en) * 2016-02-29 2017-09-07 株式会社メデック Rotor for agitation and agitation device
JP2018111089A (en) * 2017-01-13 2018-07-19 直樹 會田 Stirrer for stirring device

Also Published As

Publication number Publication date
JPS6045929B2 (en) 1985-10-12

Similar Documents

Publication Publication Date Title
JPS6140737B2 (en)
EP1984104B1 (en) Method and mixer apparatus for mixing gas into slurry in a closed reactor
GB2121701A (en) Gas-liquid contacting apparatus
JPS5817823A (en) Device for finely dividing and dispersing gaseous bubble
GB8401551D0 (en) Fluid diffuser
US4569757A (en) Adapter skirt for static aerator mixer
JPH0135688B2 (en)
JPS5814935A (en) Apparatus for atomizing and dispersing gas bubbles
GB1567452A (en) Rotating gas duffusers
EP1042519B1 (en) Injector for gas treatment of molten metals
CA2381475C (en) Method for the leaching of solid matter from sludge
JPH0321211B2 (en)
JPS5938815B2 (en) Microbubble release device in liquid
EP0027911A1 (en) Apparatus for contacting liquid with a gas
JP2005185996A (en) Dissolved air floatation system
JPH0563529B2 (en)
JPS63313631A (en) Impeller for treating molten metal
JPH047028A (en) Fine bubble generating apparatus and floating separation apparatus using the generating apparatus
JPS58186425A (en) Gas-liquid contact device
US3792840A (en) Submerged turbine aerator
RU2095154C1 (en) Flotation machine
SU785226A1 (en) Aerator
JPH0418659Y2 (en)
RU2162371C1 (en) Flotation machine
JPH0768591B2 (en) Discharge device for air bubbles into liquid