JPH0634943B2 - Separation rotor for centrifugal extractor - Google Patents
Separation rotor for centrifugal extractorInfo
- Publication number
- JPH0634943B2 JPH0634943B2 JP12086389A JP12086389A JPH0634943B2 JP H0634943 B2 JPH0634943 B2 JP H0634943B2 JP 12086389 A JP12086389 A JP 12086389A JP 12086389 A JP12086389 A JP 12086389A JP H0634943 B2 JPH0634943 B2 JP H0634943B2
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- liquid
- separation
- impeller
- centrifugal extractor
- 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
- 238000000926 separation method Methods 0.000 title claims description 36
- 239000007788 liquid Substances 0.000 claims description 106
- 238000000605 extraction Methods 0.000 claims description 22
- 238000013019 agitation Methods 0.000 claims 1
- 239000007791 liquid phase Substances 0.000 description 14
- 238000003756 stirring Methods 0.000 description 11
- 238000012545 processing Methods 0.000 description 9
- 230000002093 peripheral effect Effects 0.000 description 6
- 229910052778 Plutonium Inorganic materials 0.000 description 3
- 229910052770 Uranium Inorganic materials 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- OYEHPCDNVJXUIW-UHFFFAOYSA-N plutonium atom Chemical compound [Pu] OYEHPCDNVJXUIW-UHFFFAOYSA-N 0.000 description 3
- 238000000638 solvent extraction Methods 0.000 description 3
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 description 3
- 238000000622 liquid--liquid extraction Methods 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002915 spent fuel radioactive waste Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
Landscapes
- Extraction Or Liquid Replacement (AREA)
- Centrifugal Separators (AREA)
Description
本発明は、遠心力を利用して迅速に液−液抽出を行なう
遠心抽出器用分離ロータに関し、更に詳しくは、ロータ
内側に螺旋状液通路を形成している分離ロータに関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a separation rotor for a centrifugal extractor that uses centrifugal force to rapidly perform liquid-liquid extraction, and more particularly to a separation rotor having a spiral liquid passage inside the rotor.
溶媒抽出法による使用済核燃料の再処理においては、ウ
ラン、プルトニウムおよび核分裂生成物を含む硝酸溶液
（重液）を、ウランとプルトニウムの抽出剤である有機
溶媒（軽液）と向流接触させて重液中からウランとプル
トニウムを軽液へ抽出させている。このような液−液抽
出を行なう遠心抽出器の構造として、特開昭63-1469 号
公報に開示されている遠心抽出器を第３図に示し、簡単
に説明すると、ケーシング１内にあってロータ回転軸３
により高速回転することができる分離ロータ２は、底部
に重液・軽液の混合液供給口４が穿設され、ロータ内部
は、ロータ内周面に穿設した螺旋溝５にロータ回転軸３
に固定した螺旋翼６の先端部分をねじ込んで形成した螺
旋状液流路領域７並びに遠心力により分相された重液、
軽液をそれぞれロータ外に排出するための軽液分離抜出
堰８と重液分離抜出堰９とが取付く重液−軽液抜出し領
域10となっている。そしてロータ回転軸３は混合液供給
口４を貫通してロータ外側に伸び、その軸端に撹拌溶翼
車11が取付けられ、ケーシング１下部に形成された重液
供給管12と軽液供給管13が接続される混合室14内で回転
するようになっている。 重液供給管12と軽液供給管13から供給されてきた液が混
合室14で撹拌用翼車11により充分に混合され、液供給口
４を経て螺旋状液流路領域７を上方に向かって進む間に
遠心力を受け、重液−軽液抜出し領域10では密度の大き
い重液相Ｈを分離ロータ２内の外側に、密度の小さい軽
液相Ｌをその内側に、重液相Ｈと軽液相Ｌの間に界面Ｋ
を形成する。軽液分離抜出堰８は中心部が開口部８ａと
なっていて、開口部８ａを乗り越えた軽液が点線で示す
ように外部に排出され、一方、重液分離抜出堰９は内周
側に開口部９ａを有するとともに複数の仕切板９ｂ，９
ｃ，９ｄを設けていて、上記の開口部９ａを経て順次仕
切板９ｂ，９ｃ，９ｄを通過した重液が実線で示すよう
に外部に排出される。界面Ｋが定位置にあるようにする
には、ロータ回転軸３に穿設した空気孔15により外部か
ら仕切板９ｂ部の密閉状態空間の空気圧力を調整して行
う。 尚、分離した重液と軽液を抜出す堰構造として、二重管
式の構造が特開昭 63-1466号公報に開示されている。In the reprocessing of spent nuclear fuel by the solvent extraction method, a nitric acid solution (heavy liquid) containing uranium, plutonium and fission products is brought into countercurrent contact with an organic solvent (light liquid) which is an extractant of uranium and plutonium. Uranium and plutonium are extracted from the heavy liquid to the light liquid. As a structure of a centrifugal extractor for performing such liquid-liquid extraction, the centrifugal extractor disclosed in Japanese Patent Laid-Open No. 63-1469 is shown in FIG. Rotor shaft 3
The separation rotor 2 capable of rotating at high speed by means of which a mixed liquid supply port 4 for heavy liquid / light liquid is bored in the bottom portion, and inside the rotor, a spiral groove 5 bored in the inner peripheral surface of the rotor is provided with a rotor rotating shaft 3
A spiral liquid flow path region 7 formed by screwing the tip end portion of the spiral blade 6 fixed to the
A heavy liquid / light liquid extraction region 10 is provided to which a light liquid separation / extraction weir 8 and a heavy liquid separation / extraction weir 9 for respectively discharging the light liquid to the outside of the rotor are attached. The rotor rotary shaft 3 penetrates the mixed liquid supply port 4 and extends to the outside of the rotor. A stirring impeller 11 is attached to the shaft end of the rotor rotary shaft 3, and a heavy liquid supply pipe 12 and a light liquid supply pipe are formed in the lower portion of the casing 1. It is adapted to rotate in a mixing chamber 14 to which 13 is connected. The liquids supplied from the heavy liquid supply pipe 12 and the light liquid supply pipe 13 are sufficiently mixed in the mixing chamber 14 by the stirring impeller 11, and the spiral liquid flow passage region 7 is directed upward through the liquid supply port 4. In the heavy liquid-light liquid extraction region 10, the heavy liquid phase H having a high density is outside the separation rotor 2, the light liquid phase L having a low density is inside the heavy liquid phase H, and the heavy liquid phase H is in the heavy liquid-light liquid extraction region 10. Between the light liquid phase L and the interface K
To form. The light liquid separation withdrawal weir 8 has an opening 8a at the center, and the light liquid that has passed over the opening 8a is discharged to the outside as shown by the dotted line, while the heavy liquid separation withdrawal weir 9 has an inner circumference. A plurality of partition plates 9b, 9 having an opening 9a on the side
c and 9d are provided, and the heavy liquid that has successively passed through the partition plates 9b, 9c and 9d through the opening 9a is discharged to the outside as shown by the solid line. In order to keep the interface K in a fixed position, the air pressure in the closed state space of the partition plate 9b is adjusted from the outside by the air hole 15 formed in the rotor rotation shaft 3. As a weir structure for extracting the separated heavy liquid and light liquid, a double pipe type structure is disclosed in Japanese Patent Laid-Open No. 63-1466.
上記した螺旋状液通路は比較的簡単容易に構成すること
がでいて、液中に混入している固定粒子がロータ内周面
に堆積させなくするし、下から上へ直通する液通路をな
くすという特長がある。ところが、このロータに供給す
る重液−軽液混合液は、ケーシングに形成した混合室内
でロータ回転軸に取付けた撹拌用翼車を回転して混合す
るため、装置全体としては混合室を形成する分大きくな
った。そうかといって混合室および撹拌用翼車を省略し
てしまうと、十分混合しないまま液を供給することにな
って処理能力に限界が生じ、これを解消するには分離ロ
ータの直径や長さを大きくせざるを得なくなって結局装
置の小形化は達成できないという問題があった。 この発明は、ロータ底部に混合液供給口を形成し、ロー
タ内部に螺旋状液通路領域と、軽液分離抜出堰並びに重
液分離抜出堰とが装着する重液−軽液抜出し領域を形成
した遠心抽出器用分離ロータにおいて、処理能力を顕著
に増強させることができて、螺旋状液通路領域を現状よ
り短縮して全体を小型軽量化することができるロータ構
造を提供することを、その目的としてなされたものであ
る。The above-mentioned spiral liquid passage can be constructed relatively easily and easily. It prevents fixed particles mixed in the liquid from accumulating on the inner peripheral surface of the rotor, and eliminates the liquid passage directly communicating from the bottom to the top. There is a feature called. However, since the heavy liquid-light liquid mixed liquid supplied to the rotor is mixed by rotating the stirring impeller attached to the rotor rotation shaft in the mixing chamber formed in the casing, the mixing chamber is formed as the entire device. It got bigger. On the other hand, if the mixing chamber and the impeller for stirring are omitted, the liquid will be supplied without being sufficiently mixed, and the processing capacity will be limited.To solve this, the diameter and length of the separation rotor can be eliminated. There was a problem that the size of the device could not be achieved in the end because the size had to be increased. According to the present invention, a mixed liquid supply port is formed at the bottom of a rotor, and a spiral liquid passage region and a heavy liquid-light liquid extraction region to which a light liquid separation extraction weir and a heavy liquid separation extraction weir are attached are provided inside a rotor. In the formed centrifugal extractor separation rotor, it is possible to remarkably enhance the processing capacity, and to provide a rotor structure capable of shortening the spiral liquid passage region from the current state and reducing the overall size and weight thereof. It was done for the purpose.
上記の目的を達成するため、この発明の遠心抽出器用分
離ロータで、螺旋状通路領域の下端と混合液供給口を形
成したロータ底部の間を、ロータ回転軸の下端に取付け
たインペラーが回転する撹拌領域とし、上記インペラー
の複数枚の羽根が取付く軸部材の直径は、ロータ内で分
離された２相の界面直径より小としたものである。 好ましくはロータ底肩部およびその内側のインペラーの
羽根をケーシング底部の傾斜面に適合させて傾斜させる
ことである。またインペラーの軸部材の下方には逆三角
形状の補助羽根を設けることが望ましい。In order to achieve the above object, in the centrifugal extractor for a centrifugal extractor of the present invention, an impeller attached to a lower end of a rotor rotating shaft rotates between a lower end of a spiral passage region and a rotor bottom part where a mixed liquid supply port is formed. The diameter of the shaft member to which the plurality of impeller blades are attached is smaller than the interface diameter of the two phases separated in the rotor. Preferably, the rotor bottom shoulder and the impeller vanes inside the rotor bottom shoulder are tilted to match the inclined surface of the casing bottom. In addition, it is desirable to provide an inverted triangular auxiliary blade below the shaft member of the impeller.
上記した撹拌領域内のインペラーは、混合液供給口から
ロータ内に混合液を強力に吸引し、この吸引能力の増大
によって処理能力を増大させることになる。混合液が撹
拌領域から螺旋状液通路領域に流れる際、インペラーの
羽根が取付く軸部材の直径がロータ内で分離された２相
の界面直径より小であると、重液相によって螺旋状通路
領域の入口を閉じられ軽液相の供給不能となることはな
い。 ロータ底肩部およびその内側のインペラーの羽根をケー
シング底部の傾斜面に適合させて傾斜させると、ロータ
底部とケーシング底部の間隔が狭まり、比重の重い成分
でもインペラーの吸引力で確実にロータ内に吸引でき
る。インペラーの軸部材の下方に逆三角形状の補助羽根
を設けると、混合液供給口を通過する液を細かく分散で
きる。The impeller in the above-mentioned stirring area strongly sucks the mixed liquid into the rotor from the mixed liquid supply port, and the processing capacity is increased by the increase in the suction capacity. When the mixed liquid flows from the stirring region to the spiral liquid passage region, if the diameter of the shaft member to which the impeller blades are attached is smaller than the interface diameter of the two phases separated in the rotor, the heavy liquid phase causes the spiral passage. The inlet of the area is not closed and the light liquid phase cannot be supplied. If the rotor bottom shoulder and the impeller blades inside it are tilted by adapting to the inclined surface of the casing bottom, the gap between the rotor bottom and the casing bottom will be narrowed, and even components with heavy specific gravity will be reliably absorbed into the rotor by the suction force of the impeller. You can suck. If an inverted triangular auxiliary blade is provided below the shaft member of the impeller, the liquid passing through the mixed liquid supply port can be finely dispersed.
第１図に本発明の遠心軸抽出器用分離ロータを装着した
遠心抽出器を示す。第４図と同じ部材には同じ符号を付
している。この分離ロータ２は、ロータ底部に混合液供
給口４を形成し、ロータ内部に螺旋状液通路領域７と、
軽液分離抜出堰８並びに重液分離抜出堰９とが装着する
重液−軽液抜出し領域10を形成しているという点では第
４図と同じである。しかし、螺旋状液通路領域７の下端
と混合液供給口４を形成したロータ底部の間に、ロータ
回転軸３下端に取付けたインペラー16が回転撹拌領域17
を形成し、このインペラー16の複数枚の羽根16b が取付
く軸部材16a の直径ｄ１は、界面Ｋの直径ｄ２よりも小
さくしている点で、第４図とは相違している。 インペラー16の羽根16b な真直ぐなものでも曲ったもの
でも、その別は問わない。羽根16b の高さは例えば大き
な処理能力が要求される場合は高くするといった具合
に、要求される処理能力に応じて変えることができる。
羽根16b の取付内径は混合液供給口４の径とほぼ同じと
すればよい。好ましくは直径ｄ１はロータ内で分離した
軽液相の内径ｄ３よりも小さくすることである。 この例では重液供給部18の供給口18a および軽液供給部
19の供給口19a を、分離ロータ２を囲むケーシング筒部
１ａとロータ周面との間の供給流路20に開口させ、高速
回転するロータ周面で該供給流路20を通る重液と軽液を
混合するようにしている。ケーシング筒部１ａの底部は
傾斜面21を有する窪み部を形成しているが、これは供給
流路20内で比重の重い固体成分が分離沈降しても堆積せ
ずに混合液供給口４へと流すためである。混合液供給口
４付近に到達した混合液は、高速回転するインペラー16
の影響で渦巻き状に旋回されつつ混合液供給口４からロ
ータ内に吸引され且つインペラー16で撹拌分散されたの
ち、撹拌領域17から螺旋状液通路領域７へ送り込まれ
る。その際、インペラー16の軸部材16a の直径ｄ１は、
界面Ｋの直径ｄ２よりも小さくしていること上述した通
りであるから、螺旋状液通路領域７の入口が重液によっ
て閉じられてしまって、軽液の供給が不可能となるとい
ったことはない。 螺旋状液通路領域７から重液−軽液抜出し領域10に進ん
だ混合液が遠心力によって重液相Ｈと軽液相Ｌに分離さ
れ、重液は重液分離抜出堰９から、軽液は軽液分離抜出
堰８からそれぞれロータ外に排出される点では第３図と
変わらない。図示の重液分離抜出堰９は前記した二重管
式のもので、ロータ周面から中心方向へ伸長している外
筒22に穿設した抜出し孔23から外筒22内へ流入し、外筒
22内に配設された内筒24の開口縁を溢流したものがロー
タ外に排出される。界面Ｋの位置調節は内筒24の挿入深
さで行う。また軽液分離抜出堰８は、分離ロータ２内で
分離された軽液相内面位置規制用の周壁面25を有する凹
陥部26と、その凹陥部26とロータ外部とを連通させる複
数の放射状液放出孔27を形成している平盤環状構造体が
分離ロータ２の上端板に代って取付いていて、凹陥部26
に流れ込んだ軽液が液放出孔27から排出されるようにな
っている。 第１図のロータ底部は平坦としたため、ロータの円錐状
窪み部の底部までの距離は比較的大きくなり、場合によ
ってはその底部に分離沈降した比重の重い成分がうまく
ロータ内に吸引できないことがある。このようなことを
なくすには、第２図に示した他の実施例のように、ロー
タ低肩部28およびその内側のインペラーの羽根をケーシ
ング筒部１ａ底部の傾斜面21に適合させた傾斜形状とし
て上記の距離を短くするようにすればよい。 また、第１図のインペラー16は軸部材16a の下方には羽
根を設けていないが、第２図のインペラー16のように、
軸部材16a の下方に逆三角形状の補助羽根16c を設ける
と、この補助羽根16c は上述した渦巻き状に旋回されつ
つ混合液供給口４から入る混合液を細かく分散させる。
このように分散を積極的に分散を行うことは処理能力を
増すうえで有効である。FIG. 1 shows a centrifugal extractor equipped with the separation rotor for a centrifugal shaft extractor of the present invention. The same members as those in FIG. 4 are designated by the same reference numerals. This separation rotor 2 has a mixed liquid supply port 4 formed at the bottom of the rotor, and a spiral liquid passage region 7 inside the rotor.
It is the same as FIG. 4 in that the light liquid separation / extraction weir 8 and the heavy liquid separation / extraction weir 9 form a heavy liquid / light liquid extraction region 10 to be mounted. However, between the lower end of the spiral liquid passage region 7 and the bottom of the rotor where the mixed liquid supply port 4 is formed, the impeller 16 attached to the lower end of the rotor rotation shaft 3 has a rotary stirring region 17
And the diameter d 1 of the shaft member 16a to which the plural blades 16b of the impeller 16 are attached are smaller than the diameter d 2 of the interface K, which is different from FIG. It does not matter whether the impeller 16 has blades 16b that are straight or curved. The height of the blades 16b can be changed according to the required processing capacity, for example, the height can be increased when a large processing capacity is required.
The mounting inner diameter of the blade 16b may be substantially the same as the diameter of the mixed liquid supply port 4. The diameter d 1 is preferably smaller than the inner diameter d 3 of the light liquid phase separated in the rotor. In this example, the supply port 18a of the heavy liquid supply unit 18 and the light liquid supply unit
The supply port 19a of 19 is opened in the supply flow path 20 between the casing cylinder portion 1a surrounding the separation rotor 2 and the rotor peripheral surface, and the heavy liquid and the light liquid passing through the supply flow path 20 on the rotor peripheral surface rotating at a high speed. I try to mix the liquids. The bottom of the casing cylinder portion 1a forms a recess having an inclined surface 21, which is not deposited even if a solid component having a large specific gravity is separated and settled in the supply flow passage 20 and is supplied to the mixed liquid supply port 4. It is for shedding. The mixed liquid reaching the vicinity of the mixed liquid supply port 4 is rotated at a high speed by an impeller 16
Is swirled in a spiral shape under the influence of the above, is sucked into the rotor from the mixed liquid supply port 4 and is stirred and dispersed by the impeller 16, and then is fed from the stirring region 17 to the spiral liquid passage region 7. At that time, the diameter d 1 of the shaft member 16a of the impeller 16 is
The diameter is smaller than the diameter d 2 of the interface K. As described above, the inlet of the spiral liquid passage region 7 is closed by the heavy liquid, and the light liquid cannot be supplied. Absent. The mixed liquid that has advanced from the heavy liquid / light liquid extraction region 10 from the spiral liquid passage region 7 is separated into a heavy liquid phase H and a light liquid phase L by centrifugal force, and the heavy liquid is separated from the heavy liquid separation extraction weir 9 by a light liquid. The liquid is discharged from the light liquid separation / extraction weir 8 to the outside of the rotor, respectively, which is the same as in FIG. The illustrated heavy liquid separation extraction weir 9 is of the double pipe type described above, and flows into the outer cylinder 22 through the extraction hole 23 formed in the outer cylinder 22 extending from the rotor peripheral surface toward the center, Outer cylinder
What overflows the opening edge of the inner cylinder 24 disposed inside 22 is discharged to the outside of the rotor. The position of the interface K is adjusted by the insertion depth of the inner cylinder 24. In addition, the light liquid separation extraction weir 8 has a concave portion 26 having a peripheral wall surface 25 for regulating the position of the light liquid phase inner surface separated in the separation rotor 2, and a plurality of radial shapes for connecting the concave portion 26 and the outside of the rotor. The flat plate annular structure forming the liquid discharge hole 27 is attached instead of the upper end plate of the separation rotor 2, and the recessed portion 26 is formed.
The light liquid that has flowed into the chamber is discharged from the liquid discharge hole 27. Since the rotor bottom of FIG. 1 is flat, the distance to the bottom of the conical recess of the rotor becomes relatively large, and in some cases, the components having a high specific gravity separated and settled at the bottom cannot be well sucked into the rotor. is there. In order to eliminate such a situation, as in the other embodiment shown in FIG. 2, the rotor low shoulder portion 28 and the impeller blades inside thereof are fitted to the inclined surface 21 of the bottom of the casing tubular portion 1a. As a shape, the above distance may be shortened. Further, the impeller 16 in FIG. 1 does not have a blade below the shaft member 16a, but unlike the impeller 16 in FIG.
When an inverted triangular auxiliary blade 16c is provided below the shaft member 16a, the auxiliary blade 16c finely disperses the mixed liquid entering from the mixed liquid supply port 4 while swirling in the spiral shape.
In this way, the positive dispersion is effective in increasing the processing capacity.
上記したように本発明の遠心抽出器用分離ロータは、螺
旋状液通路領域の下端と混合液供給口を形成したロータ
底部の間をロータ回転軸の下端に取付けたインペラーが
回転する撹拌領域としたから、吸引能力が増し、これに
よって処理能力の向上に資せしめることができる。因み
に実験によって従来型の場合の処理能力と比較してみる
と約 1.6倍という好結果を示した。このことから撹拌領
域を新たに設けても、従来の混合室を省略するだけでな
く螺旋状液流路領域を短縮可能とするので、装置全体の
小型化を達成するうえで甚だ有効である。しかもインペ
ラーの複数枚の羽根が取付く軸部材の直径をロータ内で
分離された２相の界面直径より小とする比較的簡単な構
成でもって、重液と軽液の相分離性能に悪影響をを与え
なくできる。 ロータ底肩部およびその内側のインペラーの羽根をケー
シング底部の傾斜面に適合させた傾斜形状とすると、ロ
ータ底部とケーシング底部との間隔を挟めることができ
るから、分離沈降した比重の重い成分をインペラーが呈
する吸引力によって確実にロータ内に送り込むことがで
きる。 また、インペラーの軸部材の下方に逆三角形状の補助羽
根を設けると、混合液供給口を通る液を細かく分散し
て、処理能力の向上に寄与することができる。As described above, the separation rotor for centrifugal extractor of the present invention has a stirring region in which the impeller attached to the lower end of the rotor rotation shaft rotates between the lower end of the spiral liquid passage region and the rotor bottom part forming the mixed liquid supply port. Therefore, the suction capacity is increased, which can contribute to the improvement of the processing capacity. Incidentally, when compared with the processing capacity of the conventional type by experiment, it showed a good result of about 1.6 times. Therefore, even if a stirring area is newly provided, not only the conventional mixing chamber can be omitted, but also the spiral liquid flow path area can be shortened, which is very effective in achieving downsizing of the entire apparatus. Moreover, the diameter of the shaft member to which a plurality of impeller blades are attached is smaller than the interface diameter of the two phases separated in the rotor, and the phase separation performance of heavy liquid and light liquid is adversely affected. Can be given without giving. If the rotor bottom shoulder and the impeller blades inside the rotor have an inclined shape adapted to the inclined surface of the casing bottom, the rotor bottom and the casing bottom can be spaced apart from each other. It can be reliably fed into the rotor by the suction force exhibited by. If an inverted triangular auxiliary blade is provided below the shaft member of the impeller, the liquid passing through the mixed liquid supply port can be finely dispersed to contribute to the improvement of the processing capacity.
第１図は本発明になる分離ロータを装着した遠心抽出器
の断面図、第２図は第１図とは異なる他の実施例の分離
ロータを装着した遠心抽出器の断面図、第３図は従来装
置の説明図である。 １……ケーシング、２……分離ロータ、３……ロータ回
転軸、４……混合液供給口、７……螺旋状液流路領域、
８……軽液分離抜出堰、９……重液分離抜出堰、10……
重液−軽液抜出し領域、16……インペラー、16a ……軸
部材、16b ……羽根、16c ……逆三角形状の補助羽根、
17……撹拌領域、28…ロータ底肩部。 ｄ１……軸部材16a の直径、ｄ２……界面の直径、ｄ３
……軽液相の内径、Ｈ……重液相、Ｌ……軽液相、Ｋ…
…界面。FIG. 1 is a sectional view of a centrifugal extractor equipped with a separation rotor according to the present invention, FIG. 2 is a sectional view of a centrifugal extractor equipped with a separation rotor of another embodiment different from FIG. 1, and FIG. FIG. 6 is an explanatory diagram of a conventional device. 1 ... Casing, 2 ... Separation rotor, 3 ... Rotor shaft, 4 ... Mixed liquid supply port, 7 ... Helical liquid flow passage region,
8 …… Light liquid separation extraction weir, 9 …… Heavy liquid separation extraction weir, 10 ……
Heavy liquid-light liquid discharge area, 16 ... Imperor, 16a ... Shaft member, 16b ... Blade, 16c ... Inverted triangular auxiliary blade,
17: stirring area, 28: rotor bottom shoulder. d 1 ... Diameter of shaft member 16a, d 2 ... Interface diameter, d 3
… Inner diameter of light liquid phase, H… Heavy liquid phase, L… Light liquid phase, K…
…interface.
Claims (3)
タ内部に螺旋状液通路領域と、軽液分離抜出堰並びに重
液分離抜出堰とが装着される重液−軽液抜出し領域を形
成している遠心抽出器用分離ロータにおいて、ロータ回
転軸下端に取付けたインペラーが回転することができる
撹拌領域を螺旋状液通路領域の下端と混合液供給口を形
成したロータ底部の間に形成し、上記インペラーの複数
枚の羽根が取付く軸部材の直径は、ロータ内で分離され
た２相の界面直径より小としたことを特徴とする遠心抽
出器用分離ロータ。1. A heavy liquid-light liquid extraction in which a mixed liquid supply port is formed at the bottom of a rotor, and a spiral liquid passage region, a light liquid separation extraction weir and a heavy liquid separation extraction weir are installed inside the rotor. In the separation rotor for centrifugal extractor forming a region, an agitation region where an impeller attached to the lower end of the rotor rotation shaft can rotate is provided between the lower end of the spiral liquid passage region and the rotor bottom part where the mixed liquid supply port is formed. A separation rotor for a centrifugal extractor, characterized in that a diameter of a shaft member formed and to which a plurality of impeller blades are attached is smaller than an interface diameter of two phases separated in the rotor.
の羽根形状をケーシング底部の傾斜面に適合させた傾斜
形状とする請求項１の遠心抽出器用分離ロータ。2. The separation rotor for a centrifugal extractor according to claim 1, wherein the blade shape of the rotor bottom shoulder and the impeller inside thereof is an inclined shape adapted to the inclined surface of the casing bottom.
補助羽根を設けた請求項１の遠心抽出器用分離ロータ。3. A separation rotor for a centrifugal extractor according to claim 1, further comprising an inverted triangular auxiliary blade provided below the shaft member of the impeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12086389A JPH0634943B2 (en) | 1989-05-15 | 1989-05-15 | Separation rotor for centrifugal extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12086389A JPH0634943B2 (en) | 1989-05-15 | 1989-05-15 | Separation rotor for centrifugal extractor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02298372A JPH02298372A (en) | 1990-12-10 |
| JPH0634943B2 true JPH0634943B2 (en) | 1994-05-11 |
Family
ID=14796819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12086389A Expired - Lifetime JPH0634943B2 (en) | 1989-05-15 | 1989-05-15 | Separation rotor for centrifugal extractor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0634943B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008037125A1 (en) * | 2006-09-07 | 2008-04-03 | Shujiang Song | A centrifuge |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4221898B1 (en) * | 2021-12-20 | 2024-11-27 | Secretary, Department Of Atomic Energy | Annular centrifugal extractor and a process for the same |
| CN115501789B (en) * | 2022-09-27 | 2023-07-14 | 浙江威仕生物科技有限公司 | Coenzyme Q10's purification equipment |
-
1989
- 1989-05-15 JP JP12086389A patent/JPH0634943B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008037125A1 (en) * | 2006-09-07 | 2008-04-03 | Shujiang Song | A centrifuge |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02298372A (en) | 1990-12-10 |
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