JPH0240248A - Centrifugal separator - Google Patents
Centrifugal separatorInfo
- Publication number
- JPH0240248A JPH0240248A JP63187894A JP18789488A JPH0240248A JP H0240248 A JPH0240248 A JP H0240248A JP 63187894 A JP63187894 A JP 63187894A JP 18789488 A JP18789488 A JP 18789488A JP H0240248 A JPH0240248 A JP H0240248A
- Authority
- JP
- Japan
- Prior art keywords
- separation
- plates
- particles
- separation plates
- liquid
- 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.)
- Granted
Links
- 238000000926 separation method Methods 0.000 claims abstract description 76
- 238000005192 partition Methods 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 239000000126 substance Substances 0.000 claims abstract description 9
- 230000005855 radiation Effects 0.000 claims description 4
- 239000002245 particle Substances 0.000 abstract description 16
- 230000006866 deterioration Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004062 sedimentation Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000010802 sludge Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B7/00—Elements of centrifuges
- B04B7/08—Rotary bowls
- B04B7/12—Inserts, e.g. armouring plates
Landscapes
- Physical Water Treatments (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、横型スクリュー遠心分離機に関し、本発明装
置は、液体中に懸濁固形物を有する被処理液、例えばセ
メント、シリカ等の無機物、ポリエチレン等の有機物等
の懸濁液の分離に用いられるが、特に上下水の汚泥の分
離に効果的である。Detailed Description of the Invention [Industrial Field of Application] The present invention relates to a horizontal screw centrifuge, and the present invention relates to a horizontal screw centrifugal separator. It is used to separate suspensions of organic substances such as polyethylene, and is particularly effective in separating sludge from water and sewage.
この種の横型スクリュー遠心分離機は、第1図に示すよ
うに、筒状体10とその内部に同心的に配されたスクリ
ューコンベア20とが、図示しない回転駆動モータによ
って、速度差をもってそれぞれ回転するようにしてあり
、被処理液W0は、スクリュー軸部21内に臨む供給管
31を通して供給し、透孔21aからスクリュー軸部2
1と筒状体10との間の環状空間に導き、遠心力の固液
分離作用によって、筒状体10内面に粒子を押しやり、
これら粒子をスクリュー羽根22により遠心分離機の一
端に向って掻き寄せて円錐部12途中の出口12aから
重相物’ff w + とじて排出するとともに、反対
に粒子分が分離された清澄液は、円筒部1)の端の堰1
3より軽相物質W2として排出する方式となっている。In this type of horizontal screw centrifuge, as shown in FIG. 1, a cylindrical body 10 and a screw conveyor 20 arranged concentrically inside the cylindrical body 10 are rotated at different speeds by a rotary drive motor (not shown). The liquid to be treated W0 is supplied through the supply pipe 31 facing into the screw shaft 21, and is supplied from the through hole 21a to the screw shaft 2.
1 and the annular space between the cylindrical body 10 and push the particles to the inner surface of the cylindrical body 10 by the solid-liquid separation effect of centrifugal force.
These particles are scraped toward one end of the centrifugal separator by the screw blades 22 and discharged from the outlet 12a in the middle of the conical part 12 as heavy phase substances 'ff w + . , weir 1 at the end of the cylindrical part 1)
3, the method is to discharge it as light phase material W2.
他方、ディスク(分離板)を多数重ねて、分離板の下の
沈降面積を数十〜数百倍(円筒体のみの沈降面積に比較
して)にしたディスク型遠心分離機が知られており、分
離効率に優れるものの、固形物の排出機構を有しないの
で、その排出が難しく、用途が限定されがちである。On the other hand, disk-type centrifuges are known in which a large number of disks (separation plates) are stacked to increase the sedimentation area under the separation plates several tens to hundreds of times (compared to the sedimentation area of only a cylindrical body). Although it has excellent separation efficiency, since it does not have a solid matter discharge mechanism, it is difficult to discharge solid matter, and its uses tend to be limited.
この点で、横型スクリュー遠心分離機は、固形物(粒子
)の排出を、前述のように、スクリュー羽根によって強
制的に行うので、固形物の排出が円滑であり、広範囲の
被処理液の分離に用いることができる。In this respect, horizontal screw centrifuges forcefully discharge solid matter (particles) using the screw blades as described above, so solid matter can be discharged smoothly and a wide range of liquids can be separated. It can be used for.
しかるに、−船釣には、横型スクリューコンベアは、分
離板を備えていないので、沈降面積が小さく、分離効率
が十分でない。However, for boat fishing, the horizontal screw conveyor does not have a separation plate, so the settling area is small and the separation efficiency is not sufficient.
そこで、分離効率の向上のために、特公昭62−400
65号、同63−2218号公報には、横型スクリュー
遠心分離機において、分離板を設けることが開示されて
いる。Therefore, in order to improve separation efficiency,
No. 65 and No. 63-2218 disclose that a horizontal screw centrifuge is provided with a separation plate.
前記各公報記載技術によると、分離効率は高(なるけれ
ども、特に高分離効率を狙った特公昭63−2218号
のものでは、次述するような種々の難点がある。Although the techniques described in each of the above-mentioned publications have a high separation efficiency, the technique disclosed in Japanese Patent Publication No. 63-2218, which aims at particularly high separation efficiency, has various drawbacks as described below.
すなわち、各粒子が遠心力の作用を受けたとき、必らず
分離板に衝突させかつ滞在時間を十分に採るためには、
第10図のように、分離板Pの傾斜を十分に採り、かつ
多数の分離板Pを小さな間隔をもって配設する必要があ
り、かつ分離板長さが長いためスラッジの滞留が長くな
るので、分離板P、 P間において粒子が沈殿物とな
って付着しがちであり、かつその付着物の洗浄も容易で
はない。In other words, in order to ensure that each particle collides with the separation plate and has sufficient residence time when subjected to the action of centrifugal force,
As shown in Fig. 10, it is necessary to take a sufficient slope of the separator plate P and arrange a large number of separator plates P at small intervals, and because the length of the separator plate is long, the sludge stays for a long time. Particles tend to become deposits and adhere between the separation plates P and P, and it is not easy to clean the deposits.
また、分離板Pの突出長が長いと、遠心力場での応力が
大きく、これに耐えるために、板厚を増したり、根元の
みの固定であるので、遠心力によって放射(矢印X)方
向に分離IIyiPが開かれることを防止するために、
実際的には先端を保持する部材が必要になるなど、設計
的に大きな難点をもたらす。In addition, if the protruding length of the separation plate P is long, the stress in the centrifugal force field is large, and in order to withstand this, the thickness of the plate must be increased or only the base is fixed, so that the centrifugal force causes the stress in the radial (arrow In order to prevent the separation IIyiP from being opened in
In practice, this poses major design difficulties, such as the need for a member to hold the tip.
そこで、本発明の主たる目的は、分離効率が高く、分M
jli間隔を大きく採れることで粒子の付着割合が少く
、また粒子の沈降面積を十分に大きくできもって分離能
力の増大を達成でき、しかも渦の発生による分離能の低
下が無い遠心分離機を提供することにある。Therefore, the main object of the present invention is to achieve high separation efficiency and to
To provide a centrifugal separator which can reduce the adhesion rate of particles by taking a large jli interval, can increase the separation capacity by sufficiently increasing the settling area of the particles, and does not reduce the separation capacity due to the generation of vortices. There is a particular thing.
上記課題は、筒状体とその内部に同心的に配されたスク
リューコンベアとが速度差をもってそれぞれ回転し、筒
状体スクリューコンベア軸部との環状空間に供給される
被処理液を遠心力により重相物質と軽相物質とに分離し
て外部へ排出するようにした遠心分離機において;前記
環状空間内に軸心からの放射線と傾斜する状態で分離板
を放射方向に間隔を置きかつ機長方向に沿って複数枚設
けるとともに、各分離板にスクリューコンベア軸部に固
定された支持体に固定したことで解決できる。The problem described above is that the cylindrical body and the screw conveyor arranged concentrically inside the cylindrical body rotate at different speeds, and the liquid to be treated that is supplied to the annular space between the cylindrical body and the shaft of the screw conveyor is caused by centrifugal force. In a centrifugal separator that separates heavy-phase material and light-phase material and discharges them to the outside; separator plates are spaced apart in the radial direction within the annular space and are inclined to the radiation from the axis; This problem can be solved by providing a plurality of separation plates along the direction and fixing each separation plate to a support body fixed to the shaft of the screw conveyor.
またスクリューコンベア軸部外周から放射方向に沿って
周方向に複数の隔壁を突設し、隣接隔壁内に分離板群を
それぞれ設けると、隔壁間の各ブロックにおいて、隔壁
を有しない場合における隣接するブロックとの干渉を防
止しながら分離でき、全体的にみて分離能力が高まる。In addition, if a plurality of partition walls are provided circumferentially protruding from the outer periphery of the screw conveyor shaft along the radial direction, and a group of separation plates is provided in each of the adjacent partition walls, each block between the partition walls can be Separation is possible while preventing interference with blocks, and the overall separation ability is increased.
本発明においては、分離板を設けであるので、沈降面積
が増大し、もって分離能力が向上する。In the present invention, since a separation plate is provided, the sedimentation area increases, thereby improving the separation ability.
また、分離板は放射方向に複数枚有している。したがっ
て、先行公報におけるような、放射方向については、実
質的に積層されていない場合に比較して、その分、沈降
面積が増し、分離能力が向上する。Further, a plurality of separation plates are provided in the radial direction. Therefore, in the radial direction, as in the prior publication, the sedimentation area increases and the separation ability improves, compared to the case where there is no substantial stacking.
さらに、本発明では、分離板をスクリュー軸部から突設
するのではなくして、スクリュー軸部に固定した支持体
に固定するので、分離板の複数枚を放射方向に間隔を於
いて設置することが可能となり、上述の効果を期待する
上できわめて好適であるばかりでなく、分離板を片持ち
で存べ両側縁で支持することが可能となり、分離板とし
て薄いものの支持も十分可能となり、設計上の自由度が
大きくなる。Furthermore, in the present invention, the separation plates are not provided protruding from the screw shaft but are fixed to a support fixed to the screw shaft, so that a plurality of separation plates can be installed at intervals in the radial direction. This makes it possible to not only achieve the above-mentioned effects, but also to allow the separation plate to stand on a cantilever and support it on both sides, making it possible to support thin separation plates as well. The upper degree of freedom increases.
以下本発明を実施例によって説明する。 The present invention will be explained below with reference to Examples.
第1図〜第4図は第1実施例を示したものである。この
実施例では、スクリュー軸部2工の外周に放射方向に、
周方向に等間隔で8枚の隔板41゜41・・・がたとえ
ば溶接により突設され、各隔板41.41間が1分離ブ
ロックとなり、計8ブロックが構成されている。1 to 4 show a first embodiment. In this embodiment, radial directions are placed on the outer periphery of the two screw shaft parts.
Eight partition plates 41, 41, . . . are provided protrudingly, for example, by welding, at equal intervals in the circumferential direction, and each partition plate 41, 41 forms one separated block, making up a total of eight blocks.
1つの分離ブロックには、山形の分離板50゜50・・
・が放射方向に間隔を置いて複数枚配設され、図示例で
は合計10枚である。これら分離板50に支持には、長
手方向に沿って間隔を置いて放射方向にスクリュー軸部
21から突設一体化された3つの支持部材42A、42
A、42Aと、周方向に間隔を置いた隣りの支持部材4
2B、42B。One separation block has a chevron-shaped separation plate 50°50...
A plurality of sheets are arranged at intervals in the radial direction, and in the illustrated example, there are ten sheets in total. These separation plates 50 are supported by three support members 42A, 42 that are integrated and protrude from the screw shaft 21 in the radial direction at intervals along the longitudinal direction.
A, 42A and the adjacent support member 4 spaced apart in the circumferential direction
2B, 42B.
42Bとに跨って、3枚の分離板50.50・・・をそ
の側縁において固着するとともに、残りの2枚の分離板
50については、支持部材42A、42B先端間に跨設
した円弧板43に側縁を固着することで支持している。42B, three separation plates 50. It is supported by fixing the side edges to 43.
他方、同様な構造をもって、残りの5枚の分離板50.
50・・・群は支持されている。この場合における支持
部材は、符号を42Gおよび42Dで示してあり、支持
部材42B、42Cは背中合わせとされ、支持部材42
A、42Dは隔板41゜41の表面に当接されている。On the other hand, the remaining five separation plates 50. have the same structure.
50...Group is supported. The support members in this case are designated by 42G and 42D, and the support members 42B and 42C are placed back to back, and the support member 42
A and 42D are in contact with the surfaces of the partition plates 41 and 41.
かかる支持態様の分離板50が5枚1組とされた分離板
群は、第1図に示すように、長手方向に関して複数、図
示例では2つの分離板ゾーン群Z+、Zzとされ、これ
によって、遠心分離板全体として、8 (分離ブロック
)XIO(分離ブロック内)×2(ゾーンZ+、Zz)
=160枚の分離板が配されている。As shown in FIG. 1, the separation plate group consisting of a set of five separation plates 50 in such a supported manner is a plurality of separation plate zone groups Z+ and Zz in the illustrated example, which are two in the longitudinal direction. , as a whole centrifuge plate: 8 (separation block) XIO (inside separation block) x 2 (zone Z+, Zz)
=160 separation plates are arranged.
上記の遠心分離機においては、次述の操作が行なわれる
。すなわち、筒状体10とスクリューコンベア20とが
差速をもって回転されている状態で、供給管31を通し
て連続的に供給される被処理液W0は、透孔21aから
スクリュー軸部21と筒状体IOとの間の環状空間に導
かれる。この環状空間において、被処理液に遠心力が作
用し、粒子は相対的に放射方向に押しやられる。このと
き、ある粒子は、やがて対応する分離板50の表面に衝
突した後、分離板50が放射線と傾斜している関係上、
その分離板50の傾斜に沿って側縁へと流下し、流出す
る。分離板50の側縁は、支持部材の周方向厚みの関係
上、周方向に関して隣りの分離板50や、隔板41と離
間しているため、第3図および第4図に示すように、そ
れら離間部を通って筒状体10内面へ押しやられる。こ
のようにして、液から分離され、筒状体10の内面近く
に滞積した粒子は、スクリュー羽t122により円錐部
22へとさらに出口12aへと掻き寄せられ、出口12
aから重相物質W、として連続的に排出される。In the above centrifugal separator, the following operations are performed. That is, in a state where the cylindrical body 10 and the screw conveyor 20 are rotating at a different speed, the liquid to be treated W0 that is continuously supplied through the supply pipe 31 is transferred from the through hole 21a to the screw shaft portion 21 and the cylindrical body. It is guided into the annular space between the IO and the IO. In this annular space, centrifugal force acts on the liquid to be treated, and the particles are relatively pushed in the radial direction. At this time, after a certain particle collides with the surface of the corresponding separation plate 50, because the separation plate 50 is inclined to the radiation,
It flows down to the side edge along the slope of the separation plate 50 and flows out. The side edge of the separation plate 50 is spaced apart from the adjacent separation plate 50 and the partition plate 41 in the circumferential direction due to the circumferential thickness of the support member, so as shown in FIGS. 3 and 4, It is pushed to the inner surface of the cylindrical body 10 through these spaced parts. In this way, the particles separated from the liquid and accumulated near the inner surface of the cylindrical body 10 are scraped by the screw blades t122 toward the conical portion 22 and further toward the outlet 12a.
It is continuously discharged from a as a heavy phase substance W.
地方、粒子分が除去された清澄液は、液面りを保持しつ
つ堰13より軽相物質W2として排出される。The clarified liquid from which particles have been removed is discharged from the weir 13 as light phase material W2 while maintaining the liquid level.
上記例において、ある分離板50.50・・・群の間隔
は等間隔でかつ分離板長さが短くなっており、これによ
って沈殿物の分離板への付着を防止できる。In the above example, the intervals between the groups of separation plates 50, 50, etc. are equal and the length of the separation plates is short, thereby preventing deposits from adhering to the separation plates.
分離板50の放射線となす角度θは40〜70度、特に
45〜60度が好ましい。また、ある分離板50.50
・・・群の数は、複数枚であれば足りるが、より好まし
くは3枚以上である。分離板50として、上記例では平
板であったが、第5図のような湾曲板50Aや、第6図
の折曲板50Bであってもよい。分離板50.50間隔
は等間隔であるのが望ましいけれども、若干の不等があ
っても実用上の支障は、処理能力の増大効果に比較して
目をつぶることも可能である。The angle θ between the separation plate 50 and the radiation is preferably 40 to 70 degrees, particularly 45 to 60 degrees. Also, there is a separation plate 50.50
...The number of groups may be a plurality of sheets, but is more preferably three or more. Although the separation plate 50 is a flat plate in the above example, it may be a curved plate 50A as shown in FIG. 5 or a bent plate 50B as shown in FIG. Although it is desirable that the intervals between the separating plates 50 and 50 be equal, even if there is some inconsistency, the practical hindrance may be ignored compared to the effect of increasing processing capacity.
第1実施例においては、隔板41.41間に2つの分離
板群を設けたが、第7図のように、1つの分離板群であ
ってもよい、なお、第4図に示される分離板群と支持体
とのセットは、カセット方式でスクリュー軸部に着脱自
在とすることもできる。隔板41は複数枚であれば足り
るが、好ましくは3枚以上である。隔板41を設けて、
周方向に処理域を分割すると、理由は定かではないが、
隔板41を設けない場合に比較して分離性能が向上する
。In the first embodiment, two separation plate groups were provided between the partition plates 41 and 41, but as shown in FIG. 7, there may be one separation plate group. The set of the separation plate group and the support body can be detachably attached to the screw shaft part using a cassette system. A plurality of partition plates 41 is sufficient, but preferably three or more. A partition plate 41 is provided,
Although the reason is unclear, when the processing area is divided in the circumferential direction,
Separation performance is improved compared to the case where the partition plate 41 is not provided.
他方、遠心分離機の機長方向に沿って、第1図のように
、分離板群を分割すると、分割しない場合に比較して分
離性能が向上する。この理由についても定かではないが
、第1図の右側のゾーンZ、において荒分離を、ゾーン
Z2において精製分離を分担して行う機能となるためで
あると考えられる0分割数は3分割以上であってもよい
。On the other hand, if the separation plate group is divided along the longitudinal direction of the centrifuge as shown in FIG. 1, the separation performance will be improved compared to the case where it is not divided. The reason for this is not certain, but it is thought that this is because zone Z on the right side of Figure 1 performs rough separation and zone Z2 performs purification separation.The number of 0 divisions is 3 or more. There may be.
第8図には、さらに他の例が示されている。この例では
、支持部材42Bを共通し、この支持部材42Eと隔板
41とに分離板50’を固定したものである。この例の
ように、本発明にいう「支持体」としては、支持部材4
2A〜42E、ならびに円弧板43のほか、隔板41を
も含む場合がある。第9図は、第3図例と第8図例の複
合型のものであるが、改めて説明を要しないであろう。FIG. 8 shows yet another example. In this example, a support member 42B is used in common, and a separation plate 50' is fixed to this support member 42E and the partition plate 41. As in this example, the "support body" referred to in the present invention includes the support member 4
In addition to 2A to 42E and the arc plate 43, the partition plate 41 may also be included. Although FIG. 9 is a combination of the example shown in FIG. 3 and the example shown in FIG. 8, no further explanation is necessary.
次に実施例をもって本発明の効果を明らかにする。 Next, the effects of the present invention will be explained using examples.
(実施例1)
筒状体の胴部径24インチ×分離機全長72インチで、
円錐部の仰角18°の遠心分離機について、軸方向長さ
800鶴の分離板を、3枚積層した第3図のような山形
の分離板群を、前述の角度θを45度として、8枚の隔
枚の間に1組3枚の分離板からなるブロックを16組組
み込んだ、この場合、第3図のように、円弧板に固定さ
れる分離板は無く、各分離板は支持部材に固着した。分
離板の間隔は20u+とじた。(Example 1) The body diameter of the cylindrical body is 24 inches x the total length of the separator is 72 inches,
For a centrifugal separator with a conical part having an elevation angle of 18 degrees, a chevron-shaped separation plate group as shown in Figure 3, which is made by stacking three separation plates with an axial length of 800 mm, is set to 8 In this case, as shown in Fig. 3, there are no separating plates fixed to the arc plate, and each separating plate is a support member. It stuck to. The spacing between the separation plates was 20u+.
運転は筒状体の回転速度として2200rpmとし、被
処理液として供給濃度0.4重量%の余剰活性汚泥を用
いた。The operation was carried out at a rotational speed of the cylindrical body of 2200 rpm, and excess activated sludge with a feed concentration of 0.4% by weight was used as the liquid to be treated.
(実施例2)
分離板の間隔を15鰭とした以外は実施例1と同一であ
る。(Example 2) The same as Example 1 except that the interval between the separation plates was set to 15 fins.
(比較例) 分離板を有しないほかは同一とした。(Comparative example) It was the same except that it did not have a separation plate.
(結 果)
供給流量を3段階に変えて回収率を調べたところ、第1
表に示す結果を得た。(Results) When we investigated the recovery rate by changing the supply flow rate in three stages, we found that
The results shown in the table were obtained.
第1表 注)%の数値は回収率をあられす。Table 1 Note) The percentage value indicates the recovery rate.
このように、分離板を設けることによって、同じ動力消
費量の下で、本発明によると、処理能力が大幅に向上す
ることが判る。また、間隔を小さくすることで処理能力
が高まることも判る。Thus, it can be seen that by providing the separator plate, the throughput is significantly improved according to the present invention under the same power consumption. It can also be seen that the processing capacity can be increased by reducing the interval.
以上の通り、本発明によれば、処理能力が大巾に増大す
るなどの利点がもたらされる。As described above, the present invention provides advantages such as a significant increase in processing capacity.
第1図は本発明の遠心分離機の縦断面図、第2図はその
横断面図、第3図はその要部拡大図、第4図は分離板群
の斜視図、第5図および第6図は形状を異にする分離板
の斜視図、第8図および第9図は他の分離板の支持例の
断面図、第1θ図は従来例の断面図である。
W、・・・被処理液、W、・・・重相物質、Wt・・・
軽相物質、10・・・筒状体、12・・・出口、13・
・・堰、21・・・スクリュー軸部、22・・・スクリ
ュー羽根、41・・・隔板、42A〜42E・・・支持
部材、43・・・円弧板、50.50A、50B、50
’・・・分離板。
第
図
第
図
第
図
第
図
第
図
第
図
第
図
手続補正書動式)
%式%
事件の表示
昭和63年
特許願
第187894号
2、
発明の名称
遠心分離機
3゜
補正をする者
事件との関係
住所
名称Fig. 1 is a longitudinal cross-sectional view of the centrifuge of the present invention, Fig. 2 is a cross-sectional view thereof, Fig. 3 is an enlarged view of its main parts, Fig. 4 is a perspective view of a group of separating plates, Figs. 6 is a perspective view of a separating plate having a different shape, FIGS. 8 and 9 are sectional views of other examples of supporting the separating plate, and FIG. 1θ is a sectional view of a conventional example. W,...Liquid to be treated, W,...Heavy phase substance, Wt...
Light phase substance, 10... Cylindrical body, 12... Outlet, 13.
... Weir, 21 ... Screw shaft portion, 22 ... Screw blade, 41 ... Partition plate, 42A to 42E ... Support member, 43 ... Arc plate, 50.50A, 50B, 50
'... Separation plate. Figure Figure Figure Figure Figure Figure Figure Procedure Amendment Written Type) % Formula % Display of the Case 1987 Patent Application No. 187894 2, Title of Invention Centrifugal Separator 3° Amendment Case Related address name
Claims (2)
コンベアとが速度差をもってそれぞれ回転し、筒状体ス
クリューコンベア軸部との環状空間に供給される被処理
液を遠心力により重相物質と軽相物質とに分離して外部
へ排出するようにした遠心分離機において; 前記環状空間内に軸心からの放射線と傾斜する状態で分
離板を放射方向に間隔を置きかつ機長方向に沿って複数
枚設けるとともに、各分離板にスクリューコンベア軸部
に固定された支持体に固定したことを特徴とする遠心分
離機。(1) The cylindrical body and the screw conveyor arranged concentrically inside the cylindrical body rotate at different speeds, and the liquid to be treated that is supplied to the annular space between the cylindrical body and the shaft of the screw conveyor is weighed by centrifugal force. In a centrifugal separator that separates a phase substance and a light phase substance and discharges them to the outside; Separation plates are arranged in the annular space at intervals in the radial direction so as to be inclined to the radiation from the axis, and in the longitudinal direction of the machine. A centrifugal separator characterized in that a plurality of separation plates are provided along the axis of the centrifugal separator, and each separation plate is fixed to a support body fixed to a screw conveyor shaft.
て周方向に複数の隔壁を突設し、隣接隔壁内に分離板群
をそれぞれ設けた請求項1記載の遠心分離機。(2) The centrifugal separator according to claim 1, wherein a plurality of partition walls are provided circumferentially protruding from the outer periphery of the shaft portion of the screw conveyor along a radial direction, and a group of separation plates is provided in each adjacent partition wall.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63187894A JP2754014B2 (en) | 1988-07-27 | 1988-07-27 | centrifuge |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63187894A JP2754014B2 (en) | 1988-07-27 | 1988-07-27 | centrifuge |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0240248A true JPH0240248A (en) | 1990-02-09 |
JP2754014B2 JP2754014B2 (en) | 1998-05-20 |
Family
ID=16214056
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP63187894A Expired - Fee Related JP2754014B2 (en) | 1988-07-27 | 1988-07-27 | centrifuge |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2754014B2 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02203948A (en) * | 1989-01-31 | 1990-08-13 | Mitsubishi Kakoki Kaisha Ltd | Separation plate type decanter |
US5354255A (en) * | 1992-12-17 | 1994-10-11 | Alfa Laval Separation Inc. | Decanter centrifuge with conveyor capable of high speed and higher flow rates |
US6030332A (en) * | 1998-04-14 | 2000-02-29 | Hensley; Gary L. | Centrifuge system with stacked discs attached to the housing |
US6508752B1 (en) * | 1997-04-04 | 2003-01-21 | Alfa Laval Ab | Centrifugal separator having end walls and a central shaft to resist axially directed forces |
US6572524B1 (en) * | 2000-07-14 | 2003-06-03 | Alfa Laval Inc. | Decanter centrifuge having a heavy phase solids baffle |
-
1988
- 1988-07-27 JP JP63187894A patent/JP2754014B2/en not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02203948A (en) * | 1989-01-31 | 1990-08-13 | Mitsubishi Kakoki Kaisha Ltd | Separation plate type decanter |
US5354255A (en) * | 1992-12-17 | 1994-10-11 | Alfa Laval Separation Inc. | Decanter centrifuge with conveyor capable of high speed and higher flow rates |
US6508752B1 (en) * | 1997-04-04 | 2003-01-21 | Alfa Laval Ab | Centrifugal separator having end walls and a central shaft to resist axially directed forces |
US6030332A (en) * | 1998-04-14 | 2000-02-29 | Hensley; Gary L. | Centrifuge system with stacked discs attached to the housing |
US6572524B1 (en) * | 2000-07-14 | 2003-06-03 | Alfa Laval Inc. | Decanter centrifuge having a heavy phase solids baffle |
Also Published As
Publication number | Publication date |
---|---|
JP2754014B2 (en) | 1998-05-20 |
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