JPS60183027A - Stirring blade and apparatus - Google Patents
Stirring blade and apparatusInfo
- Publication number
- JPS60183027A JPS60183027A JP59036060A JP3606084A JPS60183027A JP S60183027 A JPS60183027 A JP S60183027A JP 59036060 A JP59036060 A JP 59036060A JP 3606084 A JP3606084 A JP 3606084A JP S60183027 A JPS60183027 A JP S60183027A
- Authority
- JP
- Japan
- Prior art keywords
- stirring
- particle size
- mesh
- dispersion
- stirring blade
- 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.)
- Pending
Links
Classifications
-
- 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
- B01F27/112—Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades
- B01F27/1125—Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades with vanes or blades extending parallel or oblique to the stirrer axis
-
- 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
- B01F27/114—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections
- B01F27/1145—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections ribbon shaped with an open space between the helical ribbon flight and the rotating axis
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、攪拌及び攪拌装置に係わり、特に、粒径の均
一化を図り、分散安定性を高めるのに有用な攪拌翼及び
攪拌装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to stirring and stirring devices, and particularly to stirring blades and stirring devices useful for uniformizing particle diameter and improving dispersion stability.
攪拌翼を槽内で回転させることにょシ、混合物を作る攪
拌装置は化学工業の分野で広く用いられている。その目
的は種々あり、調合１分散、溶解反応、懸濁、ガス吸収
などが上げられ、それらの目的に適合する攪拌方法が採
用されている。Stirring devices that create a mixture by rotating stirring blades within a tank are widely used in the chemical industry. There are various purposes for this, including dispersion of formulation 1, dissolution reaction, suspension, and gas absorption, and stirring methods suitable for these purposes are adopted.
ところで、これらのうち、相反に溶は会わない液体同志
あるいは液体一固体を均一に分散して、エマルジョンあ
るいはＳ濁液を作る目的で攪拌が行なわれる場合には、
分散状態を安定に維持することが実用上重要であるため
、攪拌条件などに種櫨工夫がなされる。一般には、乳化
安屋剤あるいは分数安定剤を用いて、昇赦質の粒径を小
さくすることによって安定化が図られることが多いが、
攪拌翼の形状を工夫することによって、強いせん断力を
作用式せ、粒径を小さくする方法によって安定化が図ら
れる。By the way, among these, when stirring is performed for the purpose of uniformly dispersing two liquids or one liquid and one solid, which do not dissolve mutually, to create an emulsion or S suspension,
Since it is practically important to maintain a stable dispersion state, various modifications are made to stirring conditions and the like. Generally, stabilization is often achieved by reducing the particle size of the emulsifying substance using emulsifying Yasuyaku or fractional stabilizers.
Stabilization can be achieved by modifying the shape of the stirring blades to apply a strong shearing force and reducing the particle size.
しかし、これらは、いずれにしても粒径を小さくするこ
とによって安定化する方法であるため、ある程度粒径の
大きい状態で分散系を安定化きせる手法としては採用で
きない。However, in any case, these are methods of stabilizing by reducing the particle size, so they cannot be adopted as a method for stabilizing the dispersion system even when the particle size is large to some extent.
乳化剤を用いて粒径の小さい分散系にすることは、分散
安定性ヲ亮める点では有利であるが、反面、乳化重合な
どの様に分散質との反応を進める場合には、反応性が低
丁して重合反応がうまく進まないといった場合が生ずる
など、出来れば、粒径の大きいまま安定化した方が良い
ケースもある。Using an emulsifier to create a dispersion system with a small particle size is advantageous in terms of improving dispersion stability, but on the other hand, when proceeding with reactions with dispersoids such as in emulsion polymerization, reactivity may be reduced. If possible, there are cases where it is better to stabilize the particle size while keeping it large, such as cases where the polymerization reaction does not proceed well due to low particle size.
潤滑油の分野でも粒径が小さすぎた場合には、性能が十
分発揮されないことがあるのけ、良く知られた事実であ
る。It is a well-known fact in the field of lubricating oils that if the particle size is too small, the oil may not perform adequately.
本発明は、μのように従来技術ではとつじても実現出来
なかった粒径が比較的大きい分散質を安定化させ得る分
散液の調製に好適な攪拌装置を提供すること全目的とす
る。また、そのような撹拌装置は、攪拌翼の形状に大き
な特長があり、新規な攪拌Ｒを提供すること全目的とす
る。The entire purpose of the present invention is to provide a stirring device suitable for preparing a dispersion liquid capable of stabilizing dispersoids having a relatively large particle size such as .mu., which could not be achieved even if the conventional techniques were used. Further, such a stirring device has a major feature in the shape of the stirring blade, and its entire purpose is to provide a novel stirring radius.
攪拌装置において、攪拌翼は液に流動を起させることと
、液に剪断を与えることの二つの機能を有するものと考
えられてきた。そのような観点から効率良く流動と剪断
の組合せが得られる様攪拌舅の形状９寸法などが考えら
れてきた。その結果プロペラ型、タービン型、櫂型とい
う分類の攪拌翼に集約され、その中で、形状的な工夫が
重ねられている。しかし、これらの攪拌翼は、混合の効
率だけを考えて作られているものであり、本発明の目的
とする粒径が比較的大きいままで安定な分散液を作ると
いう点では何ら考慮が払われたものではなかった。実際
に、従来の攪拌翼で実験しても目的とする分散液を得る
ことは出来なかった。In a stirring device, the stirring blade has been considered to have two functions: causing the liquid to flow and applying shear to the liquid. From this point of view, nine dimensions of the shape of the stirring arm have been considered so that an efficient combination of flow and shear can be obtained. As a result, stirring blades have been grouped into three categories: propeller-type, turbine-type, and paddle-type, and improvements have been made to their shapes. However, these stirring blades are made with only mixing efficiency in mind, and no consideration is given to creating a stable dispersion with a relatively large particle size, which is the objective of the present invention. It wasn't something that was given to me. In fact, even in experiments using conventional stirring blades, it was not possible to obtain the desired dispersion liquid.
種々検討した結果、攪拌寓を新規な形状とすることによ
シ、本発明の目的が達成し得つること全見出した。As a result of various studies, we have found that the objects of the present invention can be achieved by creating a stirring bar with a new shape.
一般に分散系では、粒径の大きさが均一なほど分散安定
性が向上することは理論的に裏付けられている。粒径を
可能な限り小さくすることによって安定化を図っている
のは、粒径が大きい状態で粒径の均一化が不可能とされ
ているためで、均一化が達成されれば粒径が大きくとも
安定化できることになる。In general, it is theoretically supported that in a dispersion system, the more uniform the particle size, the better the dispersion stability. The reason why the particle size is stabilized by making it as small as possible is because it is impossible to make the particle size uniform when the particle size is large. Even if it is large, it can be stabilized.
攪拌翼として、多数の小さな開口部を有する板状の構造
体を用いることによって、比較的粒径の揃った安定な分
散系を作る攪拌装置を作ることが出来た。上記した構造
体として好適な例としては、一定のメツシュで作られた
網目を有するステンレス製網である。By using a plate-like structure with many small openings as stirring blades, we were able to create a stirring device that creates a stable dispersion system with relatively uniform particle sizes. A suitable example of the above-mentioned structure is a stainless steel mesh having a certain mesh mesh.
回転軸に平行に配置された２枚のステンレス網からなる
回転＠を用いて、電動モーターで回転させて攪拌するこ
とにより、従来製造不可能と考えられていた粒径０．５
μｍ以上の安定な分散系全作ることが出来た。By using a rotating @ consisting of two stainless steel meshes placed parallel to the rotating shaft and rotating and stirring with an electric motor, we can produce particles with a particle size of 0.5, which was previously thought to be impossible to produce.
We were able to create a stable dispersion system with a diameter of μm or more.
原理は必ずしも明らかでないが、攪拌翼の開口部が、分
散系に対してふるいの役割を持ちながら系全体の粒径均
一化に寄与するためではないかと考えている。Although the principle is not necessarily clear, it is believed that the openings of the stirring blades serve as a sieve for the dispersion system and contribute to making the particle size of the entire system uniform.
本発明の目的を達成する方法としては、他に、無数の剛
化を持つ板状構造体で攪拌翼を構成することも有効であ
る。いずれにしても、上記の推定かられかる様に、開口
部の寸法は出来るだけ均一であることが望筐しい。Another effective method for achieving the object of the present invention is to configure the stirring blade with a plate-like structure having countless rigidities. In any case, as can be seen from the above estimation, it is desirable that the dimensions of the openings be as uniform as possible.
さて、開口部の径が大きすぎればふるいとじての作用が
なくなるため本発明の目的を達成し得なくなるものと考
えられる。発明者らの実験によれば、メツシュ１０〜１
００の範囲で、本発明の目的とする攪拌翼となり得るこ
とが確認されている。Now, if the diameter of the opening is too large, it is considered that the purpose of the present invention cannot be achieved because the function of closing the sieve is lost. According to the inventors' experiments, mesh 10-1
It has been confirmed that within the range of 0.00, it is possible to obtain the agitation blade aimed at by the present invention.
攪拌翼の材質としては、耐食性などの点から、ステンレ
スが推奨されるが、分散系によっては、ガラス、グラス
チック、セラミックなど金円いることもできる。As the material for the stirring blades, stainless steel is recommended from the viewpoint of corrosion resistance, but depending on the dispersion system, metals such as glass, glass, ceramic, etc. can also be used.
攪拌翼としては、同軸１に本発明の一実施例になる網目
状翼２の他に、従来の平板を加工したプロペラ型＠３．
３’ （ｚ併用して構成し、液の流動金助ける手段とす
ることも可能であり、本発明の目的を損うことはない。As stirring blades, in addition to mesh blades 2 which are an embodiment of the present invention on the coaxial 1, propeller type @ 3.
3'(z) may be used in combination to serve as a means for aiding the fluidity of the liquid, without detracting from the purpose of the present invention.
例えば、第１図の如くである。攪拌装置としては、従来
の攪拌槽がほぼそのまま使用することも出来るが、第２
図の如く、攪拌Ｒ２に近接して、同一網目サイズのメツ
シュ板からなる円筒５を装着することにより、より粒径
均一化が図れることが多い。For example, as shown in FIG. As a stirring device, a conventional stirring tank can be used almost as is, but
As shown in the figure, by installing a cylinder 5 made of a mesh plate of the same mesh size close to the stirring R2, it is often possible to achieve more uniform particle size.
本発明になる攪拌装置の効果を具体例によって更に詳し
く説明する。The effects of the stirring device according to the present invention will be explained in more detail using specific examples.
（混合液組成）
鉱油二８５重量％
モノブチルホスフェート：１５重ｉ％
アルケニルコハク酸エステル：ｏ、２重＠３（分散方法
）
（参照例１）上記混合液を総量Ｉ Ｋ９秤黛し、ギヤ式
の攪拌モータで、通常のプロペラ型攪拌翼を用いて、３
０００「−で約１時間攪拌し、分散液を作った。(Mixed liquid composition) Mineral oil 285% by weight Monobutyl phosphate: 15% by weight Alkenyl succinic acid ester: o, 2 times @3 (Dispersion method) (Reference example 1) Weigh the above mixed liquid in total amount I K9 and mix it into a gear. With a stirring motor of the type, using a normal propeller-type stirring blade, 3
000"- for about 1 hour to prepare a dispersion.
（参照例２）参照例１と同じ方法で、３ｏｏｒｐで、約
１時間攪拌し、分散液を作った。(Reference Example 2) A dispersion liquid was prepared in the same manner as in Reference Example 1 by stirring at 3oorp for about 1 hour.
（実施例）参照例と同じモータを用い、ステンレスメツ
シュ（２８メツシユ）で作った攪拌翼を用いて、３００
ｒｐＩｌで約１５分攪拌し、分散液を作った。(Example) Using the same motor as in the reference example and stirring blades made of stainless steel mesh (28 mesh),
A dispersion was prepared by stirring with rpIl for about 15 minutes.
（粒径測定及び分散安定性評価）
作成した分散液を薄型のシャーレにとり、光学顕微鏡で
観測し、粒径を計測した。また、ガラス製の試料管に分
散液をとり、２５０〜８ｏＣの温度条件で静置し、分散
粒子の沈降を調べた。(Particle size measurement and dispersion stability evaluation) The prepared dispersion liquid was placed in a thin Petri dish, observed with an optical microscope, and the particle size was measured. In addition, the dispersion liquid was placed in a glass sample tube and allowed to stand at a temperature of 250 to 8oC to examine sedimentation of the dispersed particles.
結果を次表に示す。The results are shown in the table below.
この表から明らかな様に、実施例では、粒径が参照例１
よ９５倍〜１０倍大きくなっているにもかかわらず、参
照例１と同等の安定性を持つ分散液となっている。As is clear from this table, in the examples, the particle size is the same as that of the reference example 1.
Despite being 95 to 10 times larger, the dispersion has the same stability as Reference Example 1.
以上説明した通り、本発明によれば比較的大きな粒径の
分散質を安定化させ得る分散液のｆＡ製に好適な攪拌翼
及び攪拌装置が得られるという効果がある。As explained above, the present invention has the effect of providing a stirring blade and a stirring device suitable for fA production of dispersions capable of stabilizing dispersoids having a relatively large particle size.
第１図は本発明の一実施例に係る攪拌翼の断面図、第２
図は本発明の一実施例に係る攪拌装置の断面図である。
１・・・回転軸、２・・・網目状攪拌ｍｌ、３．３’・
・・プロペラ状攪拌翼、４・・・攪拌槽、５・・・網目
状円筒。
代理人 弁理士 高橋明夫
第１図
第？図FIG. 1 is a sectional view of a stirring blade according to an embodiment of the present invention, and FIG.
The figure is a sectional view of a stirring device according to an embodiment of the present invention. 1... Rotating shaft, 2... Mesh stirring ml, 3.3'.
... propeller-like stirring blade, 4... stirring tank, 5... mesh cylinder. Agent Patent Attorney Akio Takahashi Figure 1? figure
Claims (1)
枚以上設けてなることを特徴とする攪拌翼。 ２、前記板材は網目構造で開口部を有することを特徴と
する特許請求の範囲第１項記載の攪拌戦。 ３、微細な多数個の開口部を有する板材を少なくとも１
枚以上設けてなる攪拌翼と、該攪拌翼の回転軸とを備え
ることを特徴とする攪拌装置。 ４６前記攪拌属は網目状のステンレス製翼であることを
特徴とする特許請求の範囲第３項記載の攪拌装置。[Claims] 1. At least one plate material having a large number of fine openings
A stirring blade characterized by being provided with more than one blade. 2. The agitator according to claim 1, wherein the plate material has a mesh structure and has openings. 3. At least one plate material having a large number of minute openings
1. A stirring device comprising at least one stirring blade and a rotating shaft of the stirring blade. 46. The stirring device according to claim 3, wherein the stirring metal is a mesh-like stainless steel blade.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59036060A JPS60183027A (en) | 1984-02-29 | 1984-02-29 | Stirring blade and apparatus |
| KR1019840008049A KR870001546B1 (en) | 1983-12-19 | 1984-12-18 | Emulsion type liquid lubricant for metal forming process for preparing the lubricant and process for metal forming with the lubricant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59036060A JPS60183027A (en) | 1984-02-29 | 1984-02-29 | Stirring blade and apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60183027A true JPS60183027A (en) | 1985-09-18 |
Family
ID=12459170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59036060A Pending JPS60183027A (en) | 1983-12-19 | 1984-02-29 | Stirring blade and apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60183027A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009022824A (en) * | 2007-07-17 | 2009-02-05 | Sintokogio Ltd | Stirring blade |
| CN103539243A (en) * | 2013-10-22 | 2014-01-29 | 佛山市水业集团有限公司 | Macroporous flow-through type stirring paddle blade |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4913464B1 (en) * | 1970-08-31 | 1974-04-01 |
-
1984
- 1984-02-29 JP JP59036060A patent/JPS60183027A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4913464B1 (en) * | 1970-08-31 | 1974-04-01 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009022824A (en) * | 2007-07-17 | 2009-02-05 | Sintokogio Ltd | Stirring blade |
| CN103539243A (en) * | 2013-10-22 | 2014-01-29 | 佛山市水业集团有限公司 | Macroporous flow-through type stirring paddle blade |
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