JPH0316629A - Agitator - Google Patents
AgitatorInfo
- Publication number
- JPH0316629A JPH0316629A JP30231888A JP30231888A JPH0316629A JP H0316629 A JPH0316629 A JP H0316629A JP 30231888 A JP30231888 A JP 30231888A JP 30231888 A JP30231888 A JP 30231888A JP H0316629 A JPH0316629 A JP H0316629A
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical container
- stirring
- tube
- draft tube
- rotating shaft
- 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
- 238000003756 stirring Methods 0.000 claims description 35
- 239000007788 liquid Substances 0.000 claims description 8
- 230000003031 feeding effect Effects 0.000 claims description 2
- 238000007790 scraping Methods 0.000 abstract description 7
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 238000002156 mixing Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010008 shearing Methods 0.000 abstract 1
- 238000013019 agitation Methods 0.000 description 9
- 238000004090 dissolution Methods 0.000 description 6
- 229920001971 elastomer Polymers 0.000 description 5
- 239000005060 rubber Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 241000219122 Cucurbita Species 0.000 description 2
- 235000009852 Cucurbita pepo Nutrition 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 239000005062 Polybutadiene Substances 0.000 description 1
- 108010085603 SFLLRNPND Proteins 0.000 description 1
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical group C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
- B01J19/1868—Stationary reactors having moving elements inside resulting in a loop-type movement
- B01J19/1875—Stationary reactors having moving elements inside resulting in a loop-type movement internally, i.e. the mixture circulating inside the vessel such that the upwards stream is separated physically from the downwards stream(s)
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
- B01J19/0066—Stirrers
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、比較的中粘度の液体の反応や混合，固液反応
，及び有機溶液中等へ固形物等を溶解する操作等に適用
される攪拌装置に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention is applicable to reactions and mixing of relatively medium-viscosity liquids, solid-liquid reactions, and operations for dissolving solids, etc. in organic solutions, etc. Regarding a stirring device.
従来、一軸の攪拌装置は基よりダプルモーシ冒ン駆動の
攪拌装置も多数提案され実用化されている。Conventionally, in addition to single-shaft stirring devices, many double-motor-driven stirring devices have been proposed and put into practical use.
しかしながら、従来のダブルモーション駆動の攪拌装置
に於いては、低剪断攪拌（槽全体を比較的低速度で攪拌
）領域と高剪断攪拌（槽内の局部を比較的高速度で攪拌
）領域の間に特別な仕切りがなく両者いりみだれていた
。However, in conventional double-motion driven stirring devices, there is a gap between the low-shear stirring region (stirring the entire tank at a relatively low speed) and the high-shear stirring region (stirring a local part of the tank at a relatively high speed). There was no special partition between them, so both sides were crowded together.
そのため、低剪断部分と高剪断部分の各々の持つ特性が
相殺され、必ずしも十分な攪拌効果を上げることができ
なかった。Therefore, the characteristics of the low shear portion and the high shear portion cancel each other out, and it has not always been possible to achieve a sufficient stirring effect.
本発明は、上記の欠点を解決した攪拌装置を提供しよう
とするものである。The present invention aims to provide a stirring device that solves the above-mentioned drawbacks.
本発明の攪拌装置は、筒状容器内に相対する方向より２
個の回転軸を挿入すると共に、該筒状容器内に１筒状容
器と同芯にドラフトチ瓢一プを配設し、該ト゛ラフトチ
ェープと前記筒状容器の間に軸方向に送液効果を有し前
記回転軸の一方に接続された攪拌翼を設置し、前記回転
軸の他方には、前記ドラフトチューブの内側に配置され
、ト゛ラフトチ、一ノ内で回転する攪拌翼が取付けられ
ている。The stirring device of the present invention has two parts in a cylindrical container from opposite directions.
In addition to inserting two rotary shafts into the cylindrical container, a draft gourd is arranged concentrically with the cylindrical container, and a liquid is sent between the draft gourd and the cylindrical container in the axial direction. and a stirring blade connected to one of the rotating shafts, and a stirring blade arranged inside the draft tube and rotating within the draft tube is attached to the other side of the rotating shaft. .
本発明は、ドラフトチューブによって、筒状容器内を仕
切り、ト゛ラ７トチー−ブと筒状容器の間に攪拌翼を設
げて低剪断の攪拌を行なうと共に、ドラフトチー−グの
内の限られた領域で攪拌翼を回転させて高剪断攪拌が行
なわれる。The present invention partitions the inside of a cylindrical container with a draft tube, and provides stirring blades between the tube and the cylindrical container to perform low-shear stirring. High shear agitation is performed by rotating the agitation blade in the area where the agitation is performed.
以上のように、円筒状容器内の液体の高剪断攪拌と低剪
断攪拌がそれぞれ別の領域で行なわれ、低動力でしかも
短時間で効率のよい攪拌・混合が行なわれる。As described above, high-shear agitation and low-shear agitation of the liquid in the cylindrical container are performed in different regions, and efficient agitation and mixing can be performed with low power and in a short time.
本発明の一実施例を第１図によって説明する。 An embodiment of the present invention will be described with reference to FIG.
上面と下面にそれぞれ人口２及び出口３を有する円筒状
容器ｌ内に円筒状容器１軸石に上部より挿入された回転
軸４と下部より挿入された回転軸５を設げる。各々の回
転軸４，５は、軸封機構６．７により外部と逍断されて
いる。In a cylindrical container l having an opening 2 and an outlet 3 on the upper and lower surfaces, respectively, a rotating shaft 4 inserted into the cylindrical container from the top and a rotating shaft 5 inserted from the bottom are provided. Each rotating shaft 4, 5 is isolated from the outside by a shaft sealing mechanism 6.7.
下部より挿入された回転軸５には、複数本の支持脚８を
介して上下が開口している円筒状のドラフトチューブ９
が円筒状容器１の軸芯に取付げられ、更に、円筒状容器
１の内壁と僅かな隙間を有するように、複数本の掻き取
り板１０が固定棒１２を介してト゛ラ７トチェープ９に
取付けられている。A cylindrical draft tube 9 that is open at the top and bottom is attached to the rotating shaft 5 inserted from the bottom via a plurality of support legs 8.
is attached to the axis of the cylindrical container 1, and a plurality of scraping plates 10 are attached to the trap 9 via a fixing rod 12 so as to have a slight gap with the inner wall of the cylindrical container 1. It is being
また、ト゛ラフトチューブ９と前記掻き取り板１０の間
には、複数個の軸方向下方に送液効果を有する攪拌翼１
１が前記固定棒１２に取付けられている。ｔよお、該攪
拌翼１１はドラ７トチェープ９と掻き取り板ｌＯに直に
取付けられてもよいが、第１図に示すように固定棒１２
により各々隙間を有するようにすることが好ましい。Further, between the draft tube 9 and the scraping plate 10, there are provided a plurality of stirring blades 1 having a liquid feeding effect downward in the axial direction.
1 is attached to the fixed rod 12. t, the stirring blade 11 may be directly attached to the drum chape 9 and the scraping plate lO, but as shown in FIG.
It is preferable to have a gap between the two.
一方、上部より挿入された回転軸４￥Ｃは、前記ドラフ
トチｉ−プ９の内側に配置され、前記ドラフトチューブ
９と接しないように位置して複数個の攪拌翼１３が取付
げられている。On the other hand, the rotating shaft 4￥C inserted from above is arranged inside the draft tube 9, and a plurality of stirring blades 13 are attached so as not to touch the draft tube 9. .
なお、各々の回転軸４．５は図示されたい駆動装置によ
り、相反する方向に同速度または異なった速度で回転す
るようにたっている。Note that each rotating shaft 4.5 is erected so as to rotate in opposite directions at the same speed or at different speeds by means of a drive device, which is not shown.
本実施例では、攪拌翼１１の回転によって、円筒状容器
１内の液体は、円筒状容器１とドラフトチューブ６との
間で低剪断の攪拌が行なわれると共に、下方に送られ図
中矢印１４で示されるようにドラフトチューブ９の下端
から同｝＃ラフトチｉ−プ９内に流入し、同ドラフトチ
ューブ内の限られた領域内で攪拌翼１３の回転によって
高剪断の攪拌が行なわれ、矢印１５に示すようにドラフ
トチューブ９の上端から流出し、円筒状容器１内で循環
されながら攪拌・混合される。また、円筒状容器ｌの内
壁に接近して回転する掻き取り板１０によって、同内壁
の清掃が行ｋわれる。In this embodiment, by the rotation of the stirring blade 11, the liquid in the cylindrical container 1 is stirred with low shear between the cylindrical container 1 and the draft tube 6, and is sent downward as shown by the arrow 1 in the figure. As shown by the arrow, the flow flows into the raft tip 9 from the lower end of the draft tube 9, and high-shear stirring is performed within a limited area within the draft tube by the rotation of the stirring blade 13. As shown at 15, the mixture flows out from the upper end of the draft tube 9 and is stirred and mixed while being circulated within the cylindrical container 1. Further, the inner wall of the cylindrical container l is cleaned by the scraping plate 10 that rotates close to the inner wall of the cylindrical container l.
以上の通り本実施例では、ドラフトチ、一プ９によって
円筒状容器ｌ内を区画し、同ト゛２フトチ１−プ９の内
外の領域において、それぞれ高剪断と低剪断の攪拌を行
なうことによって、高剪断攪拌と低剪断攪拌がそれぞれ
別の領域で行々われ、各々の特性を相殺するとと々く発
揮させることができ、低動力でしかも短時間で反応，混
合もしくは溶解を行なうことができる。As described above, in this embodiment, the inside of the cylindrical container 1 is divided by the draft tip 1-9, and high-shear and low-shear agitation is performed in the inner and outer regions of the same two-foot tip 1-9, respectively. High-shear agitation and low-shear agitation are performed in separate areas, and when the characteristics of each are offset, they can be brought to full play, and reaction, mixing, or dissolution can be carried out with low power and in a short time.
なお、上記実施例では、円筒状容器１とト゛ラフトチ，
−プ９の間の攪拌翼１１が回転するト゜ラ７トチ、一／
９に取付げられているが、ドラフトチ，ープを固定し、
攪拌翼１１を一方の回転軸に取付けて回転させるように
することもできる。In addition, in the above embodiment, the cylindrical container 1 and the tube,
- The stirring blade 11 between the wheels 7 and 9 rotates.
Although it is attached to 9, it fixes the draft top,
It is also possible to attach the stirring blade 11 to one of the rotating shafts and rotate it.
また、流体の流れを矢印１４ ． １５で示される方向
と逆方向にするようにしてもよい。Also, the flow of fluid is indicated by arrow 14. The direction may be opposite to that indicated by 15.
本発明に係る攪拌装置の効果を確認するための実験例に
ついて以下説明する。Experimental examples for confirming the effects of the stirring device according to the present invention will be described below.
（比較例）
比較例として、内径３００ｔｔａｎφの円筒状容器内に
、直径２１０向，幅５０１Ｍ１，傾斜４５°の４枚傾斜
パドル翼を３段設げてスチレンモノマー中に、１０ｍ”
のブタジエンゴムを溶解させるテストを行なった。(Comparative Example) As a comparative example, three stages of four inclined paddle blades with a diameter of 210, a width of 501 M1, and an inclination of 45° were installed in a cylindrical container with an inner diameter of 300 ttanφ, and a 10 m'' was placed in styrene monomer.
A test was conducted to dissolve butadiene rubber.
条件はゴム濃度１４ｗｔ％，温度４０℃．回転数２５０
ｒｐｍで行ない、ゴム溶解濃度の経時変化を計測した。The conditions were a rubber concentration of 14 wt% and a temperature of 40°C. Rotation speed 250
rpm, and the change over time in the rubber dissolution concentration was measured.
その結果、ゴム溶解濃度は開始後２時間で８ｗｔ％，４
時間で１２ｗｔ％となり完全溶解まで、およそ６．５時
間要した。又最終時の攪拌動力は、約１８ ｋｗ／ｍ”
であった。As a result, the rubber dissolution concentration was 8wt%, 4wt% 2 hours after the start.
It took about 6.5 hours to reach 12 wt% and complete dissolution. Also, the final stirring power is approximately 18 kW/m”
Met.
（実験例）
上記容器内に第１図に示した形状と同じ内径１２０ｗφ
，高さ３００ｍのドラフトチ１−プを設け、ドラフトチ
ューブと容器の間に幅１５ｏ＋の掻き取り板及び長さ６
０ｓ＋ｏｎ，幅４０Ｂ，傾斜４５°の平板状攪拌翼を３
段取付け、回転により上から下へ液が流れるように回転
させた。回転数は６０ｒｐｍとした。(Experiment example) Inside the above container, the inner diameter 120wφ is the same as the shape shown in Figure 1.
A draft tip with a height of 300 m is installed, and a scraping board with a width of 15o+ and a length of 6 mm is installed between the draft tube and the container.
3 flat stirring blades with 0s+on, width 40B, and 45° inclination.
It was installed in stages and rotated so that the liquid would flow from top to bottom. The rotation speed was 60 rpm.
また他方直径１００１ＩＩｌｌＩの４枚羽根タービン翼
を３段ドラフトチ１−プ内に設げてドラフトチシープの
回転とは逆の方向に２０Ｏｒｐｍで回転させた。溶解条
件は比較例と同じく、ゴム濃［１４Ｗｔ％ｌ 温度４０
℃で行なった。その結果、ゴム溶解濃度は、開始後１時
間で９ｗｔ％，２時間で１３ｗｔ％， 完全溶解まで
は、２５時間を要し、前記比較例に対して、大幅に時間
が短縮された。しかも、最終時の攪拌動力も２軸合わせ
て１．９１ｃｗ／ｍ”となり動力的にも低減された。On the other hand, a four-blade turbine blade having a diameter of 1001III was installed inside the three-stage draft chip and rotated at 20 rpm in the direction opposite to the rotation of the draft chip. The melting conditions were the same as in the comparative example: rubber concentration [14 Wt%l, temperature 40
It was carried out at ℃. As a result, the rubber dissolution concentration was 9 wt% in 1 hour after the start, and 13 wt% in 2 hours, and it took 25 hours to completely dissolve, which was a significant time reduction compared to the comparative example. Moreover, the final stirring power was 1.91 cw/m'' for the two shafts, which was also reduced in terms of power.
以上に説明したように、本発明は、低剪断攪拌領域と高
剪断攪拌領域を同一装置内で明確に区画し、各々の特性
を相殺することなく発揮させることにより、低動力でし
かも短時間に反応，混合もしくは溶解を行なうことがで
きる。As explained above, the present invention clearly separates the low-shear stirring region and the high-shear stirring region within the same device, and allows each to exhibit their respective characteristics without canceling each other out, thereby achieving low-power and short-term stirring. Reactions, mixing or dissolution can be carried out.
第１図は本発明の一実施態様の縦断面図である。
１・・・円筒状容器， ４，５・・・回転軸，９・
・・ドラフトチ１−ゾ，１０・・・掻取り板，１１・・
・攪拌翼，１２・・・固定棒，１３・・・攪拌翼，FIG. 1 is a longitudinal sectional view of one embodiment of the present invention. 1... Cylindrical container, 4, 5... Rotating shaft, 9...
...Draft chi 1-zo, 10...Scraping board, 11...
- Stirring blade, 12... Fixed rod, 13... Stirring blade,
Claims (1)
と共に、該筒状容器内に筒状容器と同芯にドラフトチュ
ーブを配設し、該ドラフトチューブと前記筒状容器の間
に軸方向に送液効果を有し前記回転軸の一方に接続され
た攪拌翼を設置し、前記回転軸の他方には、前記ドラフ
トチューブの内側に配置され、ドラフトチューブ内で回
転する攪拌翼が取付けられていることを特徴とする攪拌
装置。Two rotating shafts are inserted into the cylindrical container from opposite directions, and a draft tube is arranged in the cylindrical container concentrically with the cylindrical container, and between the draft tube and the cylindrical container. A stirring blade that has a liquid feeding effect in the axial direction and is connected to one of the rotating shafts is installed, and a stirring blade that is arranged inside the draft tube and rotates within the draft tube is installed on the other side of the rotating shaft. A stirring device characterized in that it is attached.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30231888A JPH0316629A (en) | 1988-12-01 | 1988-12-01 | Agitator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30231888A JPH0316629A (en) | 1988-12-01 | 1988-12-01 | Agitator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0316629A true JPH0316629A (en) | 1991-01-24 |
Family
ID=17907505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30231888A Pending JPH0316629A (en) | 1988-12-01 | 1988-12-01 | Agitator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0316629A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100352137B1 (en) * | 1997-12-27 | 2002-12-06 | 주식회사 포스코 | Method for agitating insulation coating solution mixed organic matter and inorganic matter |
| KR101340712B1 (en) * | 2010-01-20 | 2013-12-12 | 에스케이이노베이션 주식회사 | Mix apparatus including draft tube |
| CN104307400A (en) * | 2014-10-28 | 2015-01-28 | 无锡纳润特科技有限公司 | Mixing barrel with water flushing scraper blade for chemical use |
| CN111715166A (en) * | 2020-06-22 | 2020-09-29 | 大连泰原节能科技有限公司 | Distillation residue and sludge conversion sulfur-fixing agent reaction kettle |
| US11511245B2 (en) * | 2017-11-08 | 2022-11-29 | Sumitomo Heavy Industries Process Equipment Co., Ltd. | Stirring device |
-
1988
- 1988-12-01 JP JP30231888A patent/JPH0316629A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100352137B1 (en) * | 1997-12-27 | 2002-12-06 | 주식회사 포스코 | Method for agitating insulation coating solution mixed organic matter and inorganic matter |
| KR101340712B1 (en) * | 2010-01-20 | 2013-12-12 | 에스케이이노베이션 주식회사 | Mix apparatus including draft tube |
| CN104307400A (en) * | 2014-10-28 | 2015-01-28 | 无锡纳润特科技有限公司 | Mixing barrel with water flushing scraper blade for chemical use |
| US11511245B2 (en) * | 2017-11-08 | 2022-11-29 | Sumitomo Heavy Industries Process Equipment Co., Ltd. | Stirring device |
| CN111715166A (en) * | 2020-06-22 | 2020-09-29 | 大连泰原节能科技有限公司 | Distillation residue and sludge conversion sulfur-fixing agent reaction kettle |
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