JPS63194759A - Centrifugal dehydrator - Google Patents
Centrifugal dehydratorInfo
- Publication number
- JPS63194759A JPS63194759A JP62025927A JP2592787A JPS63194759A JP S63194759 A JPS63194759 A JP S63194759A JP 62025927 A JP62025927 A JP 62025927A JP 2592787 A JP2592787 A JP 2592787A JP S63194759 A JPS63194759 A JP S63194759A
- Authority
- JP
- Japan
- Prior art keywords
- supply pipe
- flocs
- sedimentation separation
- separation section
- precipitating
- 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
- 238000000926 separation method Methods 0.000 claims abstract description 38
- 238000004062 sedimentation Methods 0.000 claims description 34
- 239000010802 sludge Substances 0.000 abstract description 23
- 230000001376 precipitating effect Effects 0.000 abstract 9
- 230000006378 damage Effects 0.000 abstract 2
- 239000007787 solid Substances 0.000 description 25
- 239000007788 liquid Substances 0.000 description 24
- 239000002245 particle Substances 0.000 description 11
- 239000002002 slurry Substances 0.000 description 5
- 230000005484 gravity Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000005189 flocculation Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B1/00—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles
- B04B1/20—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl
- B04B2001/2033—Centrifuges with rotary bowls provided with solid jackets for separating predominantly liquid mixtures with or without solid particles discharging solid particles from the bowl by a conveying screw coaxial with the bowl axis and rotating relatively to the bowl with feed accelerator inside the conveying screw
Landscapes
- Treatment Of Sludge (AREA)
- Centrifugal Separators (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は上水および下水汚染の処理に用いられる遠心脱
水装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to a centrifugal dewatering device used for the treatment of water and sewage pollution.
従来の技術
従来、産業排水や都市下水などから排出される汚泥の処
理において、固液を分離するために遠心脱水装置が用い
られている。遠心脱水装置は、たとえば第４図に示すよ
うなものであり、凝集剤を添加された汚泥Ａを給泥管１
より噴射させ、給泥管１の開口前方に設けた高速回転す
るインペラ２によって、インペラ２と同軸心まわりに高
速回転する筒状の沈降分離部３に案内し、沈降分離部３
において、凝集剤の作用によりフロック化された汚泥中
の固体粒子と液体とに遠心力を作用させて、その比重差
によって比重の大きい固体Ｂを沈降分離部３の内壁に堆
積させて、汚泥を固体Ｂと液体Ｃの二相に分離していた
。そして、インペラ２と一体に高速回転する内胴４の周
囲に設けたスクリューコンベア部５により、沈降分離部
３の内壁に堆積した固体Ｂを沈降分離部３の外へ搬送し
ていた。ただし、沈降分離部３と内胴４とは所定の回転
差をもって回転させていた。BACKGROUND OF THE INVENTION Conventionally, centrifugal dewatering equipment has been used to separate solid and liquid in the treatment of sludge discharged from industrial wastewater, urban sewage, and the like. The centrifugal dewatering device is, for example, as shown in Fig. 4, in which sludge A to which a flocculant has been added is fed into a sludge feed pipe 1.
The sludge is injected from the sludge pipe 1 and guided by the high-speed rotating impeller 2 provided in front of the opening of the mud supply pipe 1 to the cylindrical sedimentation separation section 3 that rotates at high speed about the same axis as the impeller 2.
In this step, centrifugal force is applied to the solid particles and liquid in the flocculated sludge due to the action of the coagulant, and the solid B having a large specific gravity is deposited on the inner wall of the settling section 3 due to the difference in specific gravity, thereby removing the sludge. It was separated into two phases, solid B and liquid C. The solid B deposited on the inner wall of the sedimentation separation section 3 was conveyed to the outside of the sedimentation separation section 3 by a screw conveyor section 5 provided around the inner shell 4 that rotated together with the impeller 2 at high speed. However, the sedimentation separation section 3 and the inner shell 4 were rotated with a predetermined rotational difference.
発明が解決しようとする問題点
しかし、従来の構成によれば、給泥管１内において凝集
剤の作用によって形成された固体粒子のフロックは、給
泥管１から噴出した後インペラ２に衝突し、さらにイン
ペラ２に遠心力を付与されて沈降分離部３の内壁もしく
は沈降分離部３内に形成される液体Ｃの水面に衝突する
ために、形成されたフロックが破壊されてしまうことが
あった。Problems to be Solved by the Invention However, according to the conventional configuration, the floc of solid particles formed in the mud supply pipe 1 by the action of the flocculant collides with the impeller 2 after being ejected from the mud supply pipe 1. Furthermore, the flocs formed were sometimes destroyed due to the centrifugal force applied to the impeller 2 and colliding with the inner wall of the sedimentation separation section 3 or the water surface of the liquid C formed within the sedimentation separation section 3. .
このために、フロック化によって粒子径を増大させて固
体粒子の沈降分離を促進することが出来なくなり、フロ
ックの粒径が小さくなって沈降効率が低下する問題があ
った。また、このことによって凝集剤の作用効率も低下
することとなり、凝集剤の投入量の増大を来す結果とな
り、問題点とされていた。For this reason, it is no longer possible to increase the particle size by flocculation to promote sedimentation and separation of solid particles, and there is a problem in that the particle size of the floc becomes small and the sedimentation efficiency decreases. This also reduces the efficiency of the flocculant, resulting in an increase in the amount of flocculant to be added, which has been considered a problem.
本発明は上記の問題点を解決するもので給泥管１内で形
成される固体粒子フロックを破壊することなく沈降分離
部３に噴入させる遠心脱水装置を提供することを目的と
する。The present invention solves the above-mentioned problems and aims to provide a centrifugal dewatering device that injects solid particle flocs formed in a slurry supply pipe 1 into a settling section 3 without destroying them.
問題点を解決するための手段
上記問題点を解決するため、本発明は、軸心を水平方向
にして配置される筒状体を成して前記軸心まわりに回転
する沈降分離部と、この沈降分離部と同心状に配置され
て前記沈降分離部内で開口する給泥管と、一端が前記給
泥管の開口に連通して他端側か前記給泥管の開口前方に
向って放物線状に拡径して開口するとともに、この他端
側の開口近傍において水平方向に沿う内面を有する形状
に形成されて前記沈降分離部と同軸心まわりに回転する
案内筒とを備えた構成としたものである。Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a sedimentation separation unit that is a cylindrical body arranged with its axis in the horizontal direction and rotates around the axis; a slurry supply pipe that is arranged concentrically with the sedimentation separation section and opens in the sedimentation separation section; one end communicates with the opening of the mud supply tube and the other end is shaped like a parabola toward the front of the opening of the mud supply tube; The guide tube has an opening with an enlarged diameter, and has an inner surface extending in the horizontal direction near the opening at the other end, and a guide tube that rotates about the same axis as the sedimentation/separation section. It is.
作用
上記の構成において、給泥管内において形成された汚泥
中の固体粒子のフロックは、液体とともに給泥管の開口
より案内筒内に水平方向に噴射される。そして、噴射さ
れたフロックおよび液体は、開口前方に噴出するととも
に重力を受けて降下し、案内筒の内面に落下する。この
時、案内筒が放物線状に拡径して形成されているので、
フロックは破壊されることなく案内筒の内面に接触する
ように落下する。案内筒に落下したフロックおよび液体
は、案内筒の回転によって遠心力を付与されて案内筒の
開口より沈降分離部内に噴出する。この時、案内筒の開
口近傍の内面が水平方向に沿って＝３−
いるので、フロックは沈降分離部内に水平方向で噴出す
る。したがって、フロックが沈降分離部の内壁もしくは
、沈降分離部内に形成される液体層の水面に衝突して破
壊されることがない。Operation In the above configuration, the flocs of solid particles in the sludge formed in the sludge supply pipe are horizontally injected into the guide cylinder from the opening of the sludge supply pipe together with the liquid. Then, the injected flocs and liquid are ejected in front of the opening, fall under the influence of gravity, and fall onto the inner surface of the guide cylinder. At this time, since the guide tube is formed with a parabolically expanded diameter,
The flocs fall into contact with the inner surface of the guide tube without being destroyed. The flocs and liquid that have fallen into the guide tube are subjected to centrifugal force due to the rotation of the guide tube, and are ejected from the opening of the guide tube into the settling section. At this time, since the inner surface near the opening of the guide cylinder is located along the horizontal direction, the flocs are ejected horizontally into the sedimentation separation section. Therefore, the flocs are not destroyed by colliding with the inner wall of the sedimentation separation section or the water surface of the liquid layer formed within the sedimentation separation section.
実施例
以下、本発明の一実施例を図面に基づいて説明する。第
１図〜第３図において、ベッド１１には、一対の軸受１
．２ａ、 １２ｂが配置されており、この軸受１２ａ、
１２ｂに回転自在に支承されて筒状体を成す内胴１３
および外胴１４が軸心を水平にして配置されている。そ
して、内胴１３および外胴１４は、減速機装置１５およ
びプーリ１５ａを介して駆動装置（図示せず）に連動連
結されている。減速機１５は内胴１３と外胴１４とにわ
ずかの回転差を与えるものであり、本実施例においては
、内胴１３は約２５００回転／分し、外胴１４は内胴１
３より約１０回転／分少なく回転する。EXAMPLE Hereinafter, an example of the present invention will be described based on the drawings. In FIGS. 1 to 3, the bed 11 includes a pair of bearings 1.
．． 2a and 12b are arranged, and these bearings 12a,
The inner shell 13 is rotatably supported by the inner shell 12b and forms a cylindrical body.
The outer shell 14 is arranged with its axis horizontal. The inner shell 13 and the outer shell 14 are operatively connected to a drive device (not shown) via a reduction gear device 15 and a pulley 15a. The speed reducer 15 provides a slight difference in rotation between the inner shell 13 and the outer shell 14. In this embodiment, the inner shell 13 rotates at approximately 2,500 revolutions per minute, and the outer shell 14 rotates at approximately 2,500 revolutions per minute.
It rotates about 10 revolutions per minute less than 3.
外胴１４は沈降分離部１４ａと脱液部１４ｂとに形成さ
れており、先端側に向って縮径された脱液部１４ｂの端
部には固形物排出穴１６が設けられ、沈降分離部１４ａ
の端部には堰板１７および分離液排出穴１８が設けられ
ている。内胴１３は外側１４に沿った形状に形成される
とともに、内胴１３の外周面には、螺旋状のスクリュー
コンベア部１９が形成されている。そして、外胴１４の
周囲は、ベッド１１に支持されたカバー２０で覆われて
おり、カバー２０には、外胴１４の固形物排出穴１６お
よび分離液排出穴１８に、それぞれ対応して固形物排出
口２１および分離液排出口２２が形成されている。そし
て、給泥管２３が、内胴１３および外ＪＩＩｉ１４の回
転軸２４を貫通して内胴１３と同心状に配置されており
、給泥管２３は内胴１３の内部で開口している。給泥管
２３の固定支持される基端側の途中には、薬注管２５が
連結されている。そして、案内筒２６が、一端側を、給
泥管２３の開口に連通させて、他端側を給泥管２３の開
口前方に向って放物線状に拡径して開口するとともに、
この他端側の開口近傍において水平方向に沿う内面を有
する形状に形成されて沈降分離部１４ａと同軸心まわり
に、すなわち内胴１３と一体に回転するように設けられ
ている。また、案内筒２６の開口縁部は内胴１３を貫通
して、この内胴１３よりも径方向外側に達するとともに
周方向適当間隔ごとに径方向内向きに曲げ加工されて内
胴１３に固定されている。そして、案内筒２６の開口に
対応する内胴１３の内部は仕切壁２７により閉じられて
おり、内胴１３よりも外側に拡がった案内筒２６の開口
縁部と内胴１３の周側部との間隙は、沈降分離部１４ａ
への吐出口２８に形成されている。The outer shell 14 is formed with a sedimentation separation section 14a and a liquid removal section 14b, and a solid matter discharge hole 16 is provided at the end of the liquid removal section 14b whose diameter is reduced toward the tip side. 14a
A weir plate 17 and a separated liquid discharge hole 18 are provided at the end of the tube. The inner shell 13 is formed in a shape along the outer side 14, and a spiral screw conveyor portion 19 is formed on the outer peripheral surface of the inner shell 13. The periphery of the outer shell 14 is covered with a cover 20 supported by the bed 11, and the cover 20 has solids corresponding to the solid discharge holes 16 and the separated liquid discharge holes 18 of the outer shell 14, respectively. A substance discharge port 21 and a separated liquid discharge port 22 are formed. The mud supply pipe 23 passes through the rotation shaft 24 of the inner shell 13 and the outer JIIi 14 and is arranged concentrically with the inner shell 13, and the mud supply pipe 23 opens inside the inner shell 13. A chemical injection pipe 25 is connected to the middle of the fixedly supported proximal end of the slurry supply pipe 23 . Then, the guide tube 26 has one end communicating with the opening of the mud supply pipe 23, and the other end opening with a diameter expanded in a parabolic shape toward the front of the opening of the mud supply pipe 23.
It is formed in a shape having an inner surface along the horizontal direction in the vicinity of the opening on the other end side, and is provided so as to rotate around the same axis as the settling and separating section 14a, that is, integrally with the inner shell 13. Further, the opening edge of the guide tube 26 passes through the inner shell 13 and reaches a radially outer side than the inner shell 13, and is bent radially inward at appropriate intervals in the circumferential direction and fixed to the inner shell 13. has been done. The inside of the inner shell 13 corresponding to the opening of the guide tube 26 is closed by a partition wall 27, and the opening edge of the guide tube 26 expanding outward from the inner shell 13 and the circumferential side of the inner shell 13 are closed by a partition wall 27. The gap between the sedimentation separation section 14a
It is formed in the discharge port 28 to.
上記の構成における作用について説明する。先ず、駆動
装置により、プーリ１５ａおよび減速機１５を介して内
胴１３と外胴１４を高速回転させる。そして、内胴１３
とともに案内筒２６が高速回転している状態において、
汚泥りを給泥管２３より、その途中において薬注管２５
から凝集剤Ｅを注入添加しながら、案内筒２６内へ水平
方向に噴射する。この時、汚泥中の固体粒子は給泥管２
３中において凝集剤Ｅの作用を受けてフロック化された
状態で案内筒２６内に噴射される。そして、案内筒２６
内に噴射される汚泥中の、固体粒子がフロック化されて
なる固体Ｆ及び液体Ｇは、開口前方に噴出するとともに
重力を受けて降下し、案内筒２６の内面に落下する。The operation of the above configuration will be explained. First, the inner shell 13 and the outer shell 14 are rotated at high speed by the drive device via the pulley 15a and the reducer 15. And inner body 13
In the state where the guide tube 26 is rotating at high speed,
The sludge is fed from the sludge supply pipe 23, and the chemical injection pipe 25
The flocculant E is injected into the guide cylinder 26 in the horizontal direction while being added thereto. At this time, the solid particles in the sludge are removed from the sludge feed pipe 2.
3, the flocculant is treated with the flocculant E and is flocculated and injected into the guide cylinder 26. And the guide tube 26
The solid F and liquid G, which are made up of flocs of solid particles in the sludge that is injected into the guide cylinder 26, are ejected in front of the opening, fall under the force of gravity, and fall onto the inner surface of the guide tube 26.
この時、案内筒２６の内面は、放物線状に拡径している
ので、固体Ｆ及び液体Ｇは、案内筒２６の内面に、衝突
するのではなく接触するように落下するので、フロック
が破壊されない。そして、′案内筒２６に落下した汚泥
は、案内筒２６の回転によって遠心力を付与されて、案
内筒２６の吐出口２８より沈降分離部１４ａ内に噴出す
る。この時、案内筒２６の開口近傍の内面が水平方向に
沿っているので、フロックは、沈降分離部１４ａ内に水
平方向で噴出することとなる。したがって、フロックが
沈降分離部１４ａの内壁もしくは、沈降分離部１４ａ内
に形成される液体Ｇの水面に衝突して破壊されることが
ない。At this time, since the inner surface of the guide tube 26 expands in diameter in a parabolic manner, the solid F and the liquid G fall so as to contact the inner surface of the guide tube 26 rather than colliding with it, so that the flocs are destroyed. Not done. Then, the sludge that has fallen into the guide tube 26 is subjected to centrifugal force by the rotation of the guide tube 26, and is ejected from the discharge port 28 of the guide tube 26 into the settling section 14a. At this time, since the inner surface of the guide tube 26 near the opening is along the horizontal direction, the flocs are ejected horizontally into the sedimentation separation section 14a. Therefore, the flocs are not destroyed by colliding with the inner wall of the sedimentation separation section 14a or the water surface of the liquid G formed within the sedimentation separation section 14a.
そして、沈降分離部１４ａ内において固体Ｆおよび液体
Ｇは、沈降分離部１４ａの回転による遠心力の作用を受
けて、フロック化によって粒子径の増大された固体Ｆを
沈降分離部１４ａの内壁に堆積させて、固体Ｆと液体Ｇ
の二相に分離される。この時、給泥管２３中において形
成されたフロックが破壊されることなく沈降分離部１４
ａ内に噴入するので、沈降分離部１４ａ内において、従
来よりも大きな粒径のフロックを確保して沈降効率の向
上を図れる。In the sedimentation separation section 14a, the solid F and the liquid G are subjected to the action of centrifugal force due to the rotation of the sedimentation separation section 14a, and the solid F, whose particle size has been increased by flocculation, is deposited on the inner wall of the sedimentation separation section 14a. Let solid F and liquid G
It is separated into two phases. At this time, the flocs formed in the slurry supply pipe 23 are not destroyed and the sedimentation separation unit 14
Since it is injected into the sedimentation separation section 14a, it is possible to secure flocs with a larger particle size than before in the sedimentation separation section 14a, thereby improving the sedimentation efficiency.
しかも、このことによって、凝集剤の作用に無駄がなく
なり、凝集剤の作用効率を向上させて、凝集剤の投入量
を減少させることが出来る。次に、分離されて沈降分離
部１４ａの内壁に堆積する固体Ｆに対して、内胴１３と
外胴１４の回転差によってスクリューコンベア部１９が
作用し、固体Ｆは脱液部１４ｂを通って固形物排出穴１
６よりカバー２０内に排出される。カバー２０内に排出
された固体Ｆは固形物排出口２１より外部へ排出される
。一方、分離された液体Ｇは、堰板１７を溢流して分離
液排出穴１８よりカバー２０内に排出され、カバー２０
の分離液排出口２２より外部に排出される。Furthermore, this eliminates waste in the action of the flocculant, improves the action efficiency of the flocculant, and reduces the amount of flocculant input. Next, the screw conveyor section 19 acts on the separated solid F, which is deposited on the inner wall of the sedimentation separation section 14a, due to the rotation difference between the inner shell 13 and the outer shell 14, and the solid F passes through the liquid removal section 14b. Solids discharge hole 1
6 into the cover 20. The solid F discharged into the cover 20 is discharged to the outside from the solid discharge port 21. On the other hand, the separated liquid G overflows the weir plate 17 and is discharged from the separated liquid discharge hole 18 into the cover 20.
The separated liquid is discharged to the outside from the separated liquid discharge port 22.
発明の効果
以上述べたごとく本発明によれば、案内筒によって、給
泥管内で形成されるフロックを、破壊することなく沈降
分離部に噴出させることが出来るので、沈降分離部内に
おいて大きな粒径のフロックを確保して、沈降効率の向
上を図れる。しかも、このことによって、凝集剤の作用
効率を向上させて凝集剤の投入量の削減を図れる。Effects of the Invention As described above, according to the present invention, the guide tube allows the flocs formed in the slurry supply pipe to be ejected into the sedimentation separation section without destroying them. It is possible to secure flocs and improve sedimentation efficiency. Furthermore, this makes it possible to improve the efficiency of the flocculant and reduce the amount of flocculant input.
第１図は本発明の一実施例を示す一部破截全体断面図、
第２図は第１図の案内筒の拡大断面図、第３図は第２図
のａ−ａ矢視図、第４図は従来の遠心脱水装置の構成を
示す図である。
１１・・・ベッド、１．２ａ、１２ｂ・・・軸受、１３
・・・内胴、１４・・外胴、１５・・・減速機、１７・
・・堰板、１９・・・スクリューコンベア部、２３・・
・給泥管、２５・・薬注管、２６・・・案内筒、２８・
・・吐出口、Ｄ・・・汚泥、Ｅ・・・凝集剤、Ｆ・・・
固体、Ｇ・・・液体。
代理人 森 本 義 弘
第２図
第３図
第４図FIG. 1 is a partially cutaway overall sectional view showing an embodiment of the present invention;
2 is an enlarged sectional view of the guide tube shown in FIG. 1, FIG. 3 is a view taken along the line a-a in FIG. 2, and FIG. 4 is a diagram showing the configuration of a conventional centrifugal dewatering device. 11... Bed, 1.2a, 12b... Bearing, 13
...Inner shell, 14...Outer shell, 15...Reducer, 17.
...Weir plate, 19...Screw conveyor section, 23...
・Sludge supply pipe, 25.. Chemical injection pipe, 26.. Guide tube, 28.
...Discharge port, D...Sludge, E...Flocculant, F...
Solid, G...liquid. Agent Yoshihiro MorimotoFigure 2Figure 3Figure 4
Claims (1)
記軸心まわりに回転する沈降分離部と、この沈降分離部
と同心状に配置されて前記沈降分離部内で開口する給泥
管と、一端側が前記給泥管の開口に連通して他端側が前
記給泥管の開口前方に向かって放物線状に拡径して開口
するとともに、この他端側の開口近傍において水平方向
に沿う内面を有する形状に形成されて前記沈降分離部と
同軸心まわりに回転する案内筒とを備えたことを特徴と
する遠心脱水装置。1. A sedimentation separation section that is a cylindrical body arranged with its axis in the horizontal direction and rotates around the axis, and a feeder that is arranged concentrically with this sedimentation separation section and opens within the sedimentation separation section. One end of the mud pipe communicates with the opening of the mud supply pipe, the other end opens in a parabolic shape toward the front of the mud supply pipe, and the mud pipe opens in the vicinity of the opening of the other end in a horizontal direction. 1. A centrifugal dewatering device comprising: a guide tube that is formed in a shape having an inner surface along the same axis and rotates about the same axis as the sedimentation separation section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62025927A JPS63194759A (en) | 1987-02-05 | 1987-02-05 | Centrifugal dehydrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62025927A JPS63194759A (en) | 1987-02-05 | 1987-02-05 | Centrifugal dehydrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63194759A true JPS63194759A (en) | 1988-08-11 |
Family
ID=12179407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62025927A Pending JPS63194759A (en) | 1987-02-05 | 1987-02-05 | Centrifugal dehydrator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63194759A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5374234A (en) * | 1990-03-13 | 1994-12-20 | Alfa-Laval Separation A/S | Decanter centrifuge with energy dissipating inlet |
| US5971907A (en) * | 1998-05-19 | 1999-10-26 | Bp Amoco Corporation | Continuous centrifugal separator with tapered internal feed distributor |
| US6561965B1 (en) * | 2000-10-20 | 2003-05-13 | Alfa Laval Inc. | Mist pump for a decanter centrifuge feed chamber |
| JP2015134316A (en) * | 2014-01-17 | 2015-07-27 | 株式会社石垣 | Screw type solid-liquid separation apparatus incorporating flocculating/mixing device |
| EP4059610A1 (en) * | 2021-03-17 | 2022-09-21 | GEA Westfalia Separator Group GmbH | Solid bowl screw centrifuge |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS494862A (en) * | 1972-05-08 | 1974-01-17 | ||
| JPS5464771A (en) * | 1968-01-10 | 1979-05-24 | Robatel Slpi | Centrifugal continuous tilting apparatus |
-
1987
- 1987-02-05 JP JP62025927A patent/JPS63194759A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5464771A (en) * | 1968-01-10 | 1979-05-24 | Robatel Slpi | Centrifugal continuous tilting apparatus |
| JPS494862A (en) * | 1972-05-08 | 1974-01-17 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5374234A (en) * | 1990-03-13 | 1994-12-20 | Alfa-Laval Separation A/S | Decanter centrifuge with energy dissipating inlet |
| US5971907A (en) * | 1998-05-19 | 1999-10-26 | Bp Amoco Corporation | Continuous centrifugal separator with tapered internal feed distributor |
| US6561965B1 (en) * | 2000-10-20 | 2003-05-13 | Alfa Laval Inc. | Mist pump for a decanter centrifuge feed chamber |
| JP2015134316A (en) * | 2014-01-17 | 2015-07-27 | 株式会社石垣 | Screw type solid-liquid separation apparatus incorporating flocculating/mixing device |
| EP4059610A1 (en) * | 2021-03-17 | 2022-09-21 | GEA Westfalia Separator Group GmbH | Solid bowl screw centrifuge |
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