JPH043635Y2 - - Google Patents

Info

Publication number
JPH043635Y2
JPH043635Y2 JP12468386U JP12468386U JPH043635Y2 JP H043635 Y2 JPH043635 Y2 JP H043635Y2 JP 12468386 U JP12468386 U JP 12468386U JP 12468386 U JP12468386 U JP 12468386U JP H043635 Y2 JPH043635 Y2 JP H043635Y2
Authority
JP
Japan
Prior art keywords
outer shell
roller
shaft
discharge port
solids
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
Application number
JP12468386U
Other languages
Japanese (ja)
Other versions
JPS6332651U (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP12468386U priority Critical patent/JPH043635Y2/ja
Publication of JPS6332651U publication Critical patent/JPS6332651U/ja
Application granted granted Critical
Publication of JPH043635Y2 publication Critical patent/JPH043635Y2/ja
Expired legal-status Critical Current

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  • Centrifugal Separators (AREA)

Description

【考案の詳細な説明】 [産業上の利用分野] 本考案は廃水処理汚泥等、圧縮性のある固形物
を含有する原液を固液分離するために使用する遠
心分離機に関するものである。
[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a centrifugal separator used for solid-liquid separation of a stock solution containing compressible solids, such as wastewater treatment sludge.

[従来の技術] 第3図は従来のスクリユーデカンタ型遠心分離
機の一例を示すもので、一端側にテーパ部2を有
する外胴1が、中空の外胴軸3を中心にモータに
よつて一方向に高速回転するよう支持されてお
り、該外胴1内には、外周にスクリユーブレード
4を備えた内胴5が、外胴1と速度差をもつて一
方向に高速回転するよう同心状に設けられてい
る。
[Prior Art] Fig. 3 shows an example of a conventional screw decanter type centrifuge, in which an outer shell 1 having a tapered portion 2 at one end is driven by a motor around a hollow outer shell shaft 3. Inside the outer shell 1, an inner shell 5 having a screw blade 4 on its outer periphery rotates at high speed in one direction at a speed difference with the outer shell 1. They are arranged concentrically.

固形物を含んだ原液は軸心部に配したフイード
パイプ6を通つて内胴5内に供給され、回転軸7
の高速回転による遠心力によつて、内胴5から内
胴吐出口8を通り外胴1内に送られる。外胴1内
に入つた原液は外胴1の高速回転による遠心力を
受け、原液中の固形物は外胴1の内周壁側に集ま
り、スクリユーブレード4によつて掻取られなが
ら移送され、テーパ部1端の固形物吐出口9から
吐出され、一方固形物が分離された後の液体は、
外胴1の反テーパ部側端面の液体吐出口10から
外胴1外へ吐出される。
The stock solution containing solids is supplied into the inner shell 5 through the feed pipe 6 arranged at the center of the shaft, and then the rotating shaft 7
Due to the centrifugal force caused by the high speed rotation of the cylinder, the liquid is sent from the inner cylinder 5 into the outer cylinder 1 through the inner cylinder discharge port 8. The stock solution entering the outer shell 1 is subjected to centrifugal force due to the high speed rotation of the outer shell 1, and the solids in the stock solution collect on the inner circumferential wall side of the outer shell 1, and are transferred while being scraped off by the screw blade 4. , the liquid is discharged from the solid matter discharge port 9 at the end of the tapered part 1, and the liquid after the solid matter has been separated is:
The liquid is discharged out of the outer shell 1 from the liquid discharge port 10 on the end surface of the outer shell 1 on the side opposite to the tapered part.

[考案が解決しようとする問題点] かかる従来の遠心分離機においては、高脱水性
が得られるよう、外胴1にテーパ部2を設けて該
テーパ部2にて遠心力による振切りと固形物自体
の圧密により脱水性を良くしているが、そのため
には遠心力を大きく、つまり外胴1の回転数を相
当に上げなければならなかつた。又、処理する原
液が下水汚泥等の圧縮性固形物を含有している場
合に固形物の出口を絞ることによつて圧密性を高
め脱水を良くしようとすると、該固形物がスクリ
ユーブレード4と共回りしてしまうため、良好な
掻取り効果、即ち、固形物の円滑な移送性が得ら
れなかつた。
[Problems to be solved by the invention] In such a conventional centrifugal separator, in order to obtain high dehydration properties, a tapered part 2 is provided in the outer shell 1, and the tapered part 2 shakes off and solids by centrifugal force. Although dewatering performance is improved by consolidating the material itself, this requires a large centrifugal force, that is, a considerable increase in the rotational speed of the outer shell 1. In addition, when the raw solution to be treated contains compressible solids such as sewage sludge, if an attempt is made to improve compactness and improve dewatering by narrowing the outlet of the solids, the solids may be compressed by the screw blade 4. Because of this, it was not possible to obtain a good scraping effect, that is, smooth transfer of the solids.

本考案は、こうした実情に鑑み、低遠心力でも
高脱水性と良好な掻取り効果が得られることを目
的としてなしたものである。
In view of these circumstances, the present invention was developed with the aim of achieving high dehydration properties and good scraping effects even at low centrifugal force.

[問題点を解決するための手段] 本考案は上記目的を達成するため、固形物吐出
口近くに位置する内胴スクリユーのピツチ間位置
に、固形物脱水兼掻取り促進用ローラを配置し、
且つ該ローラを、上記内胴スクリユーにアームを
介して揺動可能に支持せしめた構成としている。
[Means for Solving the Problems] In order to achieve the above object, the present invention disposes a roller for promoting solid material dehydration and scraping between the pitches of the inner screw located near the solid material discharge port,
In addition, the roller is swingably supported by the inner barrel screw via an arm.

[作用] 内胴の回転による遠心力によつてローラがアー
ムの揺動を介して外胴内周面に押付けられ、この
押付け力により固形物に対して圧密性が与えられ
て脱水され、脱水された固形物は更にローラによ
つて掻取られる。
[Function] The centrifugal force caused by the rotation of the inner shell presses the roller against the inner circumferential surface of the outer shell through the swing of the arm, and this pressing force provides compactness to the solid material and dewaters it. The solids removed are further scraped off by rollers.

[実施例] 以下、図面に基づいて本考案の実施例を説明す
る。
[Example] Hereinafter, an example of the present invention will be described based on the drawings.

本考案は、第1図及び第2図に示す如く、固形
物吐出口9の近くのスクリユーブレード4の部分
に固形物脱水兼掻取り促進装置を設けたものであ
る。
In the present invention, as shown in FIGS. 1 and 2, a solid material dewatering and scraping promoting device is provided in a portion of the screw blade 4 near the solid material discharge port 9.

即ち、固形物吐出口9の近くに位置する内胴5
部に、所要の大きさの切欠孔11を周方向で適数
個所設けると共に、該切欠孔11に面するよう外
胴軸3に一体連設した固定歯車12を内胴5内に
配置し、且つ上記切欠孔11を軸心方向の前後で
挟むスクリユーブレード4のピツチ間位置に受動
歯車13を設けて、該受動歯車13と上記固定歯
車12とを上記切欠孔11部に配置した中間歯車
14を介して噛合し、中間歯車14の軸15をス
クリユーブレード4に支持させると共に、中間歯
車14の軸15と受動歯車13の軸16とをカウ
ンタウエイト17を備えたアーム18にて連結
し、更に上記受動歯車13の軸16に固形物脱水
兼掻取り促進用ローラ19を取付ける。尚、上記
各歯車12,13,14としては、固形物の噛込
み等を少なくするためにサイクロイド歯形を用い
ている。
That is, the inner shell 5 located near the solid material discharge port 9
A suitable number of notch holes 11 of a required size are provided in the circumferential direction, and a fixed gear 12 integrally connected to the outer body shaft 3 is arranged in the inner body 5 so as to face the notch holes 11. and an intermediate gear in which a passive gear 13 is provided between the pitches of the screw blade 4 that sandwich the notch hole 11 in the axial direction, and the passive gear 13 and the fixed gear 12 are arranged in the notch hole 11 part. 14, the shaft 15 of the intermediate gear 14 is supported by the screw blade 4, and the shaft 15 of the intermediate gear 14 and the shaft 16 of the passive gear 13 are connected by an arm 18 having a counterweight 17. Furthermore, a roller 19 for promoting solid matter dehydration and scraping is attached to the shaft 16 of the passive gear 13. Incidentally, each of the gears 12, 13, and 14 has a cycloidal tooth profile in order to reduce the possibility of solid objects being caught in the gears.

今、第2図において、内胴5がX方向(時計方
向)に回転し外胴1がY方向(反時計方向)に回
転すると、外胴軸3と一体の固定歯車12もY方
向に回転する。従つて、固定歯車12と噛合する
中間歯車14がX方向に、中間歯車14と噛合す
る受動歯車13がY方向に夫々回転し、受動歯車
13と同軸のローラ19もY方向に回転する。こ
こで、受動歯車軸16と中間歯車軸15とはアー
ム18によつて連結され、中間歯車軸14の位置
がスクリユーブレード4に固定されているので、
上記ローラ19は、遠心力を受けると中間歯車軸
15を支点とするアーム18の揺動により、外胴
1内周面に押付けられる。
Now, in FIG. 2, when the inner shell 5 rotates in the X direction (clockwise) and the outer shell 1 rotates in the Y direction (counterclockwise), the fixed gear 12 integrated with the outer shell shaft 3 also rotates in the Y direction. do. Therefore, the intermediate gear 14 meshing with the fixed gear 12 rotates in the X direction, the passive gear 13 meshing with the intermediate gear 14 rotates in the Y direction, and the roller 19 coaxial with the passive gear 13 also rotates in the Y direction. Here, the passive gear shaft 16 and the intermediate gear shaft 15 are connected by the arm 18, and the position of the intermediate gear shaft 14 is fixed to the screw blade 4.
When the roller 19 receives centrifugal force, it is pressed against the inner peripheral surface of the outer shell 1 by the swinging of the arm 18 with the intermediate gear shaft 15 as a fulcrum.

従つて、このローラ19の外胴1内周面への押
付け力によつて、外胴1の内周面に集められた固
形物は圧密され、更に遠心力と相俟つて効率よく
脱水作業が行われる。又ローラ19は遠心力によ
る押付け力を与えられながら外胴1内周面上を回
転しながら移動するので、固形物は強制的に掻取
られる。
Therefore, the pressing force of the roller 19 against the inner circumferential surface of the outer shell 1 consolidates the solids collected on the inner circumferential surface of the outer shell 1, and in combination with the centrifugal force, the dewatering work can be carried out efficiently. It will be done. Further, since the roller 19 rotates and moves on the inner circumferential surface of the outer shell 1 while being applied with a pressing force due to centrifugal force, the solid matter is forcibly scraped off.

尚、上記ローラ19の押付け力は、アーム18
に備えたカウンタウエイト17の重量を選定する
ことにより調整することができる。
Note that the pressing force of the roller 19 is the same as that of the arm 18.
This can be adjusted by selecting the weight of the counterweight 17 provided for this purpose.

[考案の効果] 以上説明したように、本考案の遠心分離機によ
れば、 () 外胴のテーパ部内周面に集まる固形物
を、遠心力とローラの押付け力との両方で圧密
することができるので、脱水効果を著しく向上
することができる。
[Effects of the invention] As explained above, according to the centrifugal separator of the invention, () the solid matter that collects on the inner peripheral surface of the tapered part of the outer shell can be consolidated by both the centrifugal force and the pressing force of the rollers; As a result, the dehydration effect can be significantly improved.

() ローラによつて固形物を強制的に掻取る
ことができるので、掻取り性が大幅に改善さ
れ、分離性能まで向上する。
() Since the solid matter can be forcibly scraped off by the roller, the scraping performance is greatly improved and the separation performance is also improved.

() 以上により、従来装置より回転数を下げ
ることができ、低遠心効果で高脱水、良好な掻
取り性が得られ、省エネルギー化に寄与し得
る。
() As described above, the rotational speed can be lowered than that of the conventional device, high dehydration and good scraping performance can be obtained due to the low centrifugal effect, and it can contribute to energy saving.

等の優れた効果を奏し得る。It can produce excellent effects such as

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本考案の遠心分離機の部分断面図、第
2図は第1図の側面図、第3図は従来の遠心分離
機の説明図である。 1……外胴、2……テーパ部、3……外胴軸、
4……スクリユーブレード、5……内胴、9……
固形物吐出口、10……液体吐出口、11……切
欠孔、12……固定歯車、13……受動歯車、1
4……中間歯車、15,16……軸、18……ア
ーム、19……ローラ。
FIG. 1 is a partial sectional view of the centrifugal separator of the present invention, FIG. 2 is a side view of FIG. 1, and FIG. 3 is an explanatory diagram of a conventional centrifuge. 1...Outer body, 2...Tapered portion, 3...Outer body shaft,
4...screw blade, 5...inner body, 9...
Solid discharge port, 10...Liquid discharge port, 11...Notch hole, 12...Fixed gear, 13...Passive gear, 1
4... Intermediate gear, 15, 16... Shaft, 18... Arm, 19... Roller.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] スクリユーデカンタ型遠心分離機において、固
形物吐出口近くに位置する内胴スクリユーのピツ
チ間位置に、固形物脱水兼掻取り促進用ローラを
配置し、且つ該ローラを、上記内胴スクリユーに
アームを介して揺動可能に支持せしめたことを特
徴とする遠心分離機。
In a screw decanter type centrifugal separator, a roller for promoting solid matter dehydration and scraping is arranged between the pitches of the inner screw located near the solid material discharge port, and the roller is attached to the inner screw by an arm. 1. A centrifugal separator characterized by being swingably supported through.
JP12468386U 1986-08-14 1986-08-14 Expired JPH043635Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12468386U JPH043635Y2 (en) 1986-08-14 1986-08-14

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12468386U JPH043635Y2 (en) 1986-08-14 1986-08-14

Publications (2)

Publication Number Publication Date
JPS6332651U JPS6332651U (en) 1988-03-02
JPH043635Y2 true JPH043635Y2 (en) 1992-02-04

Family

ID=31016925

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12468386U Expired JPH043635Y2 (en) 1986-08-14 1986-08-14

Country Status (1)

Country Link
JP (1) JPH043635Y2 (en)

Also Published As

Publication number Publication date
JPS6332651U (en) 1988-03-02

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