JPH08178B2 - Device for releasing and dispersing bubbles in liquid - Google Patents
Device for releasing and dispersing bubbles in liquidInfo
- Publication number
- JPH08178B2 JPH08178B2 JP62007238A JP723887A JPH08178B2 JP H08178 B2 JPH08178 B2 JP H08178B2 JP 62007238 A JP62007238 A JP 62007238A JP 723887 A JP723887 A JP 723887A JP H08178 B2 JPH08178 B2 JP H08178B2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- liquid
- rotating body
- bubbles
- gas passage
- 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
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
- B01F23/2331—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 introduction of the gas along the axis of the stirrer or along the stirrer 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
- B01F23/2331—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 introduction of the gas along the axis of the stirrer or along the stirrer elements
- B01F23/23311—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 introduction of the gas along the axis of the stirrer or along the stirrer elements through a hollow stirrer axis
-
- 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
- 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
- B01F23/2366—Parts; Accessories
- B01F23/2368—Mixing receptacles, e.g. tanks, vessels or reactors, being completely closed, e.g. hermetically closed
-
- 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
- B01F27/116—Stirrers shaped as cylinders, balls or rollers
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacture And Refinement Of Metals (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 この発明は、液体保持槽内に入れられた液体中に、気
体を微細化された気泡状態で放出し、この気泡を液体全
体に分散させる装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device that discharges a gas in the form of fine bubbles into a liquid contained in a liquid holding tank and disperses the bubbles throughout the liquid. .
従来技術とその問題点 この種装置は、金属中から水素ガスのような溶存有害
ガスや、非金属介在物を除去する目的で、溶融金属中に
不活性ガスや塩素ガスなどの処理ガスを微細な気泡状態
で放出する場合や、化学反応を促進する目的で液体中に
気体を微細な気泡状態で放出する場合に使用される。Conventional technology and its problems This type of equipment is designed to remove dissolved harmful gases such as hydrogen gas from metal and non-metallic inclusions by processing gas such as inert gas or chlorine gas in molten metal. It is used when releasing gas in the form of fine bubbles, or when releasing gas in the form of fine bubbles in a liquid for the purpose of promoting a chemical reaction.
従来の液体中への気泡放出分散装置は、第３図および
第４図に示すように、液体保持槽（10）内に配置されか
つ内部に軸方向に伸びる気体通路（12）を有する垂直回
転軸（11）と、垂直回転軸（11）の下端に設けられかつ
底面の中央部に気体通路（12）と連なった気体吹出口
（14）が設けられた回転体（13）とよりなり、回転体
（13）が下方から見て円形であり、回転体（13）の底面
に気体吹出口（14）から周縁部に到る複数の溝（15）が
放射状に設けられ、回転体（13）の周面における隣り合
う各溝（15）の開口端どうしの間に、それぞれ上下方向
に伸びる溝（16）が設けられたものである。回転軸（1
1）は、槽（10）内の蓋（17）を貫通してその上端は蓋
（17）の上方に伸びており、槽（10）の上方に配置され
た図示しない公知の回転駆動装置によって回転させられ
る。回転軸（11）の下端は槽（10）の底部近傍に位置し
ている。回転軸（11）の下端に外周面には雄ねじ部（1
8）が形成されている。気体通路（12）の上端は図示し
ない公知の気体供給装置に接続されている。回転体（1
3）の中央には、これを上下に貫通した貫通孔（19）が
形成されている。貫通孔（19）の略上半部には雌ねじ部
（20）が形成されており、この雌ねじ部（20）に雄ねじ
部（18）をねじ嵌めることによって、回転体（13）が回
転軸（11）に固定されている。そして、貫通孔（19）の
下端が気体吹出口（14）となっている（特公昭61−4073
7号公報参照）。As shown in FIGS. 3 and 4, a conventional device for discharging and dispersing bubbles into a liquid is arranged in a liquid holding tank (10) and has a gas passage (12) extending in the axial direction in the vertical rotation. The shaft (11) and a rotating body (13) provided at the lower end of the vertical rotation shaft (11) and having a gas outlet (14) connected to the gas passage (12) at the center of the bottom surface. The rotating body (13) has a circular shape when viewed from below, and a plurality of grooves (15) extending from the gas outlet (14) to the peripheral portion are radially provided on the bottom surface of the rotating body (13). The groove (16) extending in the up-down direction is provided between the open ends of the adjacent grooves (15) on the peripheral surface of FIG. Rotation axis (1
1) penetrates the lid (17) in the tank (10) and has its upper end extending above the lid (17), and a well-known rotary drive device (not shown) arranged above the tank (10). Is rotated. The lower end of the rotating shaft (11) is located near the bottom of the tank (10). At the lower end of the rotary shaft (11), the external thread is
8) has been formed. The upper end of the gas passage (12) is connected to a known gas supply device (not shown). Rotating body (1
A through hole (19) is formed at the center of 3) so as to pass through it vertically. A female screw portion (20) is formed in a substantially upper half portion of the through hole (19), and the male screw portion (18) is screwed into the female screw portion (20) so that the rotating body (13) can rotate the rotating shaft (13). It is fixed to 11). The lower end of the through hole (19) is the gas outlet (14) (Japanese Patent Publication No. 61-4073).
No. 7).
この従来装置でも、気泡を微細化させる効果は有する
が、最近では、溶融金属の処理効率の向上を目的として
より微細化された状態で気泡を液体中に放出しうる装置
が要求されているのが実情である。Although this conventional device also has the effect of making bubbles smaller, recently, a device capable of discharging bubbles into a liquid in a finer state has been required for the purpose of improving the treatment efficiency of molten metal. Is the reality.
この発明は、上記実情に鑑みてなされたものであっ
て、従来の装置に比べてより微細化された状態で気泡を
液体中に放出しうる装置を提供することを目的とするも
のである。The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a device capable of discharging bubbles into a liquid in a more minute state than a conventional device.
問題点を解決するための手段 この発明による液体中への気泡放出分散装置は、液体
保持槽内に配置されかつ内部に軸方向に伸びる気体通路
を有する垂直回転軸と、垂直回転軸の下端に設けられか
つ底面に気体通路と連なった気体吹出口が設けられた回
転体とよりなり、回転体が下方から見て各角形であり、
回転体の底面に気体吹出口から各角部に伸びる複数の溝
が設けられているものである。MEANS FOR SOLVING THE PROBLEMS A bubble discharging / dispersing device in a liquid according to the present invention is provided with a vertical rotation shaft which is arranged in a liquid holding tank and has an axially extending gas passage therein, and a lower end of the vertical rotation shaft. It is provided with a rotating body provided with a gas outlet connected to the gas passage on the bottom surface, and the rotating body is each square when viewed from below,
A plurality of grooves extending from the gas outlet to each corner are provided on the bottom surface of the rotating body.
上記において、回転体の下方から見た形状としては、
３〜12角形であることが好ましい。また、回転のさいの
安定性を向上させるために、この多角形は、１つの円に
内接しているのがよい。また、回転体における下方から
見た場合の各辺は、中心に向ってくぼませられた円弧縁
となされていてもよい。さらに、各角部の先端は、尖っ
た部分を裁断された平坦な形状となされていてもよい。In the above, as the shape viewed from below the rotating body,
It is preferably a 3 to 12-sided polygon. Further, in order to improve stability during rotation, the polygon is preferably inscribed in one circle. Further, each side of the rotating body when viewed from below may be an arc edge recessed toward the center. Furthermore, the tip of each corner may be formed into a flat shape by cutting a sharp portion.
実 施 例 この発明を、以下図面を参照しながら説明する。Examples The present invention will be described below with reference to the drawings.
第１図および第２図に示す液体中への気泡分散装置に
おいて、第３図および第４図に示す装置との相違点は、
垂直回転軸（11）の下端に取付けられている回転体
（１）が下方から見て正８角形であり、回転体（１）の
底面に、回転体（１）の底面中央に設けられた気体吹出
口（14）から各角部に伸びる複数の溝（２）が設けられ
ていることである。The difference between the device for dispersing bubbles in a liquid shown in FIGS. 1 and 2 and the device shown in FIGS. 3 and 4 is as follows.
The rotating body (1) attached to the lower end of the vertical rotating shaft (11) is a regular octagon when viewed from below, and is provided on the bottom surface of the rotating body (1) at the center of the bottom surface of the rotating body (1). A plurality of grooves (2) extending from the gas outlet (14) to each corner are provided.
このような装置において、回転槽（11）が駆動装置に
よりその軸のまわりに高速回転させられるとともに、液
体中に吹込むべき気体が気体供給装置から気体通路（1
2）内に供給される。気体は、気体通路（12）の下端か
ら貫通孔（19）を経て気体吹出口（14）から回転体
（１）の底面に吹出される。この気体は溝（２）に入
り、その中を通って各角部に向って流れ、溝（２）の回
転体（１）周面への開口端からその開口縁に当たって微
細な気泡状とされて放出される。In such a device, the rotary tank (11) is rotated at a high speed around its axis by the drive device, and the gas to be blown into the liquid is supplied from the gas supply device to the gas passage (1
2) Supplied within. The gas is blown from the lower end of the gas passage (12) through the through hole (19) to the bottom surface of the rotating body (1) from the gas outlet (14). This gas enters the groove (2), flows through the groove (2) toward each corner, and reaches the opening edge from the opening end of the groove (2) to the peripheral surface of the rotating body (1) to form fine bubbles. Is released.
次に、この発明の装置を用いて行なった操作例につい
て、従来装置を用いて行なった操作例との比較例のもと
に説明する。Next, an example of operation performed using the apparatus of the present invention will be described based on a comparative example with an example of operation performed using a conventional apparatus.
操作例１および比較操作例１ 液体保持槽（10）の大きさは50cm×50cm×60cm、回転
体（１）の対角線長さは10cm、厚さは20cm、回転体（1
3）の直径は20cm、厚さは6cmである。そして、液体保持
槽（10）内に水を入れ、回転体（１）（13）を700rpmで
回転させながら、Arガスを気体通路（12）に40/minで
供給し、水中に放出分散された気泡の大きさを測定し
た。その結果、操作例１では0.5〜2mm、比較操作例１で
は１〜3mmであった。また、気泡の分散状態は両者とも
良好であった。Operation Example 1 and Comparative Operation Example 1 The size of the liquid holding tank (10) is 50 cm × 50 cm × 60 cm, the diagonal length of the rotating body (1) is 10 cm, the thickness is 20 cm, and the rotating body (1
3) has a diameter of 20 cm and a thickness of 6 cm. Then, water is put in the liquid holding tank (10), Ar gas is supplied to the gas passage (12) at 40 / min while rotating the rotating bodies (1) and (13) at 700 rpm, and is discharged and dispersed in water. The size of the bubble was measured. As a result, it was 0.5 to 2 mm in Operation Example 1, and 1 to 3 mm in Comparative Operation Example 1. In addition, the dispersed state of bubbles was good in both cases.
操作例２および比較操作例２ 液体保持層（10）として、黒鉛製で内径が60cmの有底
円筒状のものを使用した。また、回転軸（11）および回
転体（１）（13）としても、黒鉛、セラミックス等のア
ルミニウムに対して不活性な材料からなるものを使用し
た。そして、層（10）内に純度99.99wt％の高純度アル
ミニウム溶湯を約500kg入れて730℃に保持しておき、回
転体（１）（13）を700rpmで回転させながら40/minの
Arガスを気体通路（12）に供給するという処理を５分間
行なった。その後、処理前および処理後のアルミニウム
溶湯中の水素量をテレガス法によって測定した。その結
果を下表に示す。Operation Example 2 and Comparative Operation Example 2 The liquid holding layer (10) was made of graphite and had a bottomed cylindrical shape with an inner diameter of 60 cm. Further, as the rotating shaft (11) and the rotating bodies (1) and (13), those made of materials inert to aluminum such as graphite and ceramics were used. Then, about 500 kg of high-purity aluminum molten metal having a purity of 99.99 wt% was put in the layer (10) and kept at 730 ° C., while rotating the rotors (1) (13) at 700 rpm, the speed of 40 / min.
The process of supplying Ar gas to the gas passage (12) was performed for 5 minutes. Then, the amount of hydrogen in the molten aluminum before and after the treatment was measured by the telegas method. The results are shown in the table below.
発明の効果 この発明の液体中への気泡放出分散装置によれば、回
転体が下方から見て多角形であり、回転体の底面に、底
面に設けられかつ気体通路に連なった気体吹出口から各
角部に伸びる複数の溝が設けられているので、気体吹出
口から吹出された気体は溝を通って多角形回転体の各角
部に到り、ここから微細化されつつ放出される。したが
って、従来の装置に比べて、放出される気泡の大きさが
小さくなる。 EFFECTS OF THE INVENTION According to the device for dispersing and dispersing bubbles in a liquid of the present invention, the rotating body has a polygonal shape when viewed from below, and is provided on the bottom surface of the rotating body from the gas outlet provided on the bottom surface and connected to the gas passage. Since a plurality of grooves extending to each corner are provided, the gas blown out from the gas outlets passes through the grooves to reach each corner of the polygonal rotary body, and is discharged from the corner while being miniaturized. Therefore, the size of the discharged bubbles is smaller than that in the conventional device.
第１図および第２図はこの発明の実施例を示し、第１図
は一部切欠き垂直断面図、第２図は第１図のII−II線に
そう矢視図である。第３図および第４図は従来例を示
し、第３図は一部切欠き垂直断面図、第４図は第３図の
IV−IV線にそう矢視図である。 （１）……回転体、（２）……溝、（10）……液体保持
槽、（11）……垂直回転軸、（12）…気体通路、（14）
……気体吹出口。1 and 2 show an embodiment of the present invention. FIG. 1 is a partially cutaway vertical sectional view, and FIG. 2 is a view taken along the line II-II of FIG. 3 and 4 show a conventional example, FIG. 3 is a partially cutaway vertical sectional view, and FIG.
FIG. 4 is a view taken along the line IV-IV. (1) …… Rotator, (2) …… Groove, (10) …… Liquid holding tank, (11) …… Vertical rotation axis, (12)… Gas passage, (14)
...... Gas outlet.
フロントページの続き (56)参考文献 特開 昭60−200923（ＪＰ，Ａ) 特開 昭58−14935（ＪＰ，Ａ) 特開 昭57−32723（ＪＰ，Ａ)Continuation of front page (56) Reference JP-A-60-200923 (JP, A) JP-A-58-14935 (JP, A) JP-A-57-32723 (JP, A)
Claims (1)
に伸びる気体通路を有する垂直回転軸と、垂直回転軸の
下端に設けられかつ底面に気体通路と連なった気体吹出
口が設けられた回転体とよりなり、回転体が下方から見
て多角形であり、回転体の底面に気体吹出口から各角部
に伸びる複数の溝が設けられている液体中への気泡分散
装置。1. A vertical rotating shaft disposed in a liquid holding tank and having a gas passage extending in the axial direction therein, and a gas outlet provided at the lower end of the vertical rotating shaft and connected to the gas passage on the bottom surface. A device for dispersing bubbles in a liquid, wherein the rotating body is polygonal when viewed from below, and a plurality of grooves extending from the gas outlet to each corner are provided on the bottom surface of the rotating body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62007238A JPH08178B2 (en) | 1987-01-14 | 1987-01-14 | Device for releasing and dispersing bubbles in liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62007238A JPH08178B2 (en) | 1987-01-14 | 1987-01-14 | Device for releasing and dispersing bubbles in liquid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63175630A JPS63175630A (en) | 1988-07-20 |
| JPH08178B2 true JPH08178B2 (en) | 1996-01-10 |
Family
ID=11660416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62007238A Expired - Lifetime JPH08178B2 (en) | 1987-01-14 | 1987-01-14 | Device for releasing and dispersing bubbles in liquid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08178B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104789796B (en) * | 2015-05-18 | 2017-03-08 | 浙江鑫耐铝熔铸设备材料有限公司 | Graphite rotator |
| CN106731950B (en) * | 2016-12-29 | 2018-12-07 | 安尼康（福建）环保设备有限公司 | Without wing blender |
| WO2018119842A1 (en) * | 2016-12-29 | 2018-07-05 | 安尼康（福建）环保设备有限公司 | Bladeless stirrer |
-
1987
- 1987-01-14 JP JP62007238A patent/JPH08178B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63175630A (en) | 1988-07-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |