JPH11179236A - Device of discharging separated water from horizontal centrifuge - Google Patents

Device of discharging separated water from horizontal centrifuge

Info

Publication number
JPH11179236A
JPH11179236A JP36573497A JP36573497A JPH11179236A JP H11179236 A JPH11179236 A JP H11179236A JP 36573497 A JP36573497 A JP 36573497A JP 36573497 A JP36573497 A JP 36573497A JP H11179236 A JPH11179236 A JP H11179236A
Authority
JP
Japan
Prior art keywords
separated water
bowl
discharge
separated
plate
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
Application number
JP36573497A
Other languages
Japanese (ja)
Other versions
JP3543597B2 (en
Inventor
Hiroyoshi Mizukami
浩良 水上
Noboru Suzuki
鈴木　　登
Yasuyuki Yoshida
泰之 吉田
Hiroyuki Matsui
寛幸 松井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kubota Corp
Original Assignee
Kubota Corp
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 by Kubota Corp filed Critical Kubota Corp
Priority to JP36573497A priority Critical patent/JP3543597B2/en
Publication of JPH11179236A publication Critical patent/JPH11179236A/en
Application granted granted Critical
Publication of JP3543597B2 publication Critical patent/JP3543597B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • B04B2001/2075—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 means for recovering the energy of the outflowing liquid
    • 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
    • B04B2001/2083—Configuration of liquid outlets

Landscapes

  • Centrifugal Separators (AREA)

Abstract

PROBLEM TO BE SOLVED: To save energy required to a rotational force of a horizontal centrifuge. SOLUTION: In the device by which a screw conveyer rotated by a difference of relative speed against a ball 2 is housed in the ball 2 rotated in high speed, and fed sludge is separated liquid from solid, flashboard plates 15 for setting a discharge water level of the separated water for respective discharge holes 11 are attached in freely exchangeably to an edge plate 10 of the ball 2 opened the discharge holes of the separated water, and also blade plates 17 coming into collision with discharging separated water, recovering discharge energy of the separated water and imparting a rotational force to the ball 2 are projected on the flashboard plates 15.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【産業上の利用分野】本発明は、下水汚泥や工業排水等
の濃縮、脱水、固形物および分離水の回収を、遠心力に
より行うようにした横型式の遠心分離機における分離水
の排出装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for discharging separated water in a horizontal centrifugal separator in which concentration, dewatering, collection of solids and separated water of sewage sludge and industrial wastewater are performed by centrifugal force. It is about.

【０００２】[0002]

【従来の技術】従来一般に使用されている横型遠心分離
機は、図10、図11に示すように、高速回転される円筒状
のボウル２内に、ボウル２と相対速度差をもって回転さ
れる、先端部が円錐状に形成されたスクリューコンベア
３が収容され、ボウル２とスクリューコンベア３との間
に遠心力場としての環状空間８が設けられた構造となっ
ている。そして、汚泥等ａはスクリューコンベア３の一
端よりその中心部を通って環状空間８の前後中間部に放
出され、遠心力により固液分離される。2. Description of the Related Art As shown in FIGS. 10 and 11, a horizontal centrifuge generally used in a related art is rotated in a cylindrical bowl 2 rotated at a high speed with a relative speed difference from the bowl 2. The screw conveyor 3 having a conical tip is accommodated therein, and an annular space 8 as a centrifugal force field is provided between the bowl 2 and the screw conveyor 3. The sludge a is discharged from one end of the screw conveyor 3 to the front and rear intermediate portion of the annular space 8 through the central portion thereof, and is separated into solid and liquid by centrifugal force.

【０００３】分離されてボウル２内にはりついた濃縮汚
泥又は脱水ケーキ（以下濃縮汚泥等という）ｂは、ボウ
ル２とわずかな相対速度差をもって回転するスクリュー
コンベア３のスクリュー５により、円錐状の環状空間８
を先端方向に掻き寄せられ、ボウル２の他端部に設けら
れた濃縮汚泥等排出口９より排出される。他方、分離水
Ｃは、ボウル２の一端に設けた端板10に設けられた複数
個の円形の排出口11より流出するようになっており、そ
して、この排出口11にはせき板20を取り付けて水面の位
置（分離水のオーバーフロー位置）を設定できるように
してある。The concentrated sludge or dewatered cake (hereinafter, referred to as concentrated sludge) b which has been separated and adhered to the inside of the bowl 2 is conically shaped by a screw 5 of a screw conveyor 3 which rotates with a slight relative speed difference from the bowl 2. Space 8
, And is discharged from a discharge port 9 such as concentrated sludge provided at the other end of the bowl 2. On the other hand, the separated water C flows out from a plurality of circular outlets 11 provided on an end plate 10 provided at one end of the bowl 2, and a weir plate 20 is provided at the outlet 11. It is designed to set the position of the water surface (separation water overflow position) by mounting.

【０００４】[0004]

【発明が解決しようとする課題】ところで、この種の分
離機においては、ボウル２後端より排出される分離水
は、ボウル２及びスクリューコンベア３の回転により、
図11の矢印で示すように、排出孔11より、高速度でボウ
ル２等の回転方向に排出される。したがって、その分離
水排出にともなうエネルギーは相当大きなものである
が、従来機ではそのエネルギーを無駄に放出していると
いった状況である。By the way, in this type of separator, the separated water discharged from the rear end of the bowl 2 is rotated by the rotation of the bowl 2 and the screw conveyor 3.
As shown by the arrow in FIG. 11, the water is discharged from the discharge hole 11 at a high speed in the rotation direction of the bowl 2 or the like. Therefore, the energy associated with the discharge of the separated water is considerably large, but the conventional machine wastefully discharges the energy.

【０００５】本発明は、かかる状況にかんがみなされた
もので、この無駄に放出されている分離水の排出エネル
ギーを、ボールの回転力へ回収できるようにして、遠心
分離機運転の省エネ化を図ろうとするものである。The present invention has been made in view of such a situation, and it is possible to recover the waste energy of the waste water that has been wastedly discharged into the rotating force of the ball, thereby saving energy in the operation of the centrifuge. I'm trying.

【０００６】[0006]

【課題を解決するための手段】上記の目的を達成するた
めの本発明の構成について、実施例に対応する図面を参
照して説明すると、請求項１の装置は、高速回転される
ボウル２内に、該ボウル２と相対速度差をもって回転さ
れるスクリューコンベア３を収容し、スクリューコンベ
ア３の一端側より汚泥ａを供給して固液分離し、他端側
から濃縮汚泥等ｂを、一端側から分離水ｃを排出するよ
うにした遠心分離機において、分離水の排出孔11を開設
したボウル２の端板10の外面に、分離水の排出水位を設
定するせき板15を着脱自在に取り付けるとともに、その
せき板15の外面に、排出孔11より排出する分離水と衝当
する羽根板17を突設したことを特徴とするものである。The structure of the present invention for achieving the above object will be described with reference to the drawings corresponding to the embodiments. , A screw conveyor 3 rotated with a relative speed difference from the bowl 2 is accommodated, sludge a is supplied from one end of the screw conveyor 3, and solid-liquid separation is performed. In the centrifugal separator configured to discharge the separated water c from the bottom plate, a weir plate 15 for setting the discharged water level of the separated water is detachably attached to the outer surface of the end plate 10 of the bowl 2 in which the separated water discharge hole 11 is opened. In addition, a blade plate 17 is provided on the outer surface of the weir plate 15 so as to project against the separated water discharged from the discharge hole 11.

【０００７】また、請求項２の装置は、高速回転される
ボウル２内に、該ボウル２と相対速度差をもって回転さ
れるスクリューコンベア３を収容し、スクリューコンベ
ア３の一端側より汚泥ａを供給して固液分離し、他端側
から濃縮汚泥等ｂを、一端側から分離水ｃを排出するよ
うにした遠心分離機において、ボウル２の一端を塞ぐ端
板10に、弧状に長く形成した排出孔11ｂを周方向に隔設
し、それら各排出孔11ｂに対して、分離水の排出水位を
設定するせき板15を着脱自在に取り付けるとともに、そ
れらせき板15に、排出孔11より排出する分離水と衝当す
る羽根板17を突設したことを特徴とするものである。Further, in the apparatus according to the second aspect, the screw conveyor 3 rotated at a relative speed difference from the bowl 2 is accommodated in the bowl 2 rotated at a high speed, and sludge a is supplied from one end of the screw conveyor 3. In a centrifugal separator in which concentrated sludge b is discharged from the other end and separated water c is discharged from one end, an end plate 10 closing one end of the bowl 2 is formed in an arc-like shape. The discharge holes 11b are circumferentially spaced from each other, and a weir plate 15 for setting a discharge level of the separated water is detachably attached to each of the discharge holes 11b, and the weir is discharged from these weir plates 15 through the discharge holes 11. The blade plate 17 is provided so as to be in contact with the separated water.

【０００８】[0008]

【発明の実施の形態】以下、本発明の実施の形態につい
て図面を参照して説明する。図１〜図７は請求項１に対
応する第１の装置の実施例を示し、また、図８、図９は
請求項２に対応する第２の装置の実施例を示したもので
ある。Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1 to 7 show an embodiment of the first apparatus according to the first aspect, and FIGS. 8 and 9 show embodiments of the second apparatus according to the second aspect.

【０００９】まず、第１の装置の一実施例について説明
する。この装置の設けられる遠心分離機は、すでに説明
したように（図10参照）、ケーシング１の中に、ボウル
２と中空の回転胴４の外周にスクリュー５を有するスク
リューコンベア３が、ボウル２と僅かな相対速度をもっ
て回転されるように収容されている。そして、汚泥ａ
は、回転胴４の一端より突設された中空軸６より挿通さ
れた供給管７よりボウル２と回転胴４との間の環状空間
８の前後中央部に放出され、遠心力により分離され、濃
縮汚泥等ｂはスクリュー５により円錐状の他端部に送ら
れて汚泥等排出口９より排出され、分離水ｃはボウル２
の一端より排出されるようになっている。First, an embodiment of the first apparatus will be described. As described above (see FIG. 10), the centrifugal separator provided with this apparatus includes a bowl 1 and a screw conveyor 3 having a screw 5 on the outer periphery of a hollow rotary drum 4 in a casing 1. It is housed so as to be rotated with a slight relative speed. And sludge a
Is discharged from a supply pipe 7 inserted through a hollow shaft 6 protruding from one end of the rotary drum 4 to the front and rear central portions of an annular space 8 between the bowl 2 and the rotary drum 4, and separated by centrifugal force. The concentrated sludge b is sent to the other end of the conical shape by the screw 5 and discharged from the sludge discharge port 9.
Is discharged from one end.

【００１０】そして、本発明の装置では、分離水の排出
部が図１〜図３のような構成となっている。すなわち、
ボウル２の一端には、従来機におけるように、スクリュ
ーコンベア３の回転胴４の一端と水密に摺接する端板10
が設けられ、それに突設した支軸12が、回転胴４の中空
軸６に外挿されている。そして、端板10には、その周方
向に間隔をおいて複数の円形等の分離水の排出孔11が開
設されており、排水孔11はケーシング１の一端に設けら
れた分離水の回収室13内に臨んでいる。[0010] In the apparatus of the present invention, the discharge portion of the separated water has a structure as shown in Figs. That is,
One end of the bowl 2 is provided with an end plate 10 which is in water-tight sliding contact with one end of the rotating drum 4 of the screw conveyor 3 as in the conventional machine.
The support shaft 12 protruding therefrom is externally inserted into the hollow shaft 6 of the rotating drum 4. The end plate 10 is provided with a plurality of circular or other separated water discharge holes 11 at intervals in the circumferential direction, and the drain hole 11 is provided in a separated water collection chamber provided at one end of the casing 1. You are within 13.

【００１１】また、端板10の外面には、排出孔11に対す
るせき板15が、ボルト16などにより着脱自在に取り付け
られている。このせき板15は、排出孔11の径よりも十分
に長い横長に形成されている。そして、各せき板15に
は、これを越流して排出する分離水と衝当してそのエネ
ルギーを回収するための羽根板17がボウル２の径方向線
に対し傾斜して、せき板15の外面に起立状に突設されて
いる。On the outer surface of the end plate 10, a weir plate 15 for the discharge hole 11 is detachably attached by a bolt 16 or the like. The weir 15 is formed in a horizontally long shape that is sufficiently longer than the diameter of the discharge hole 11. Each blade 15 is provided with a blade plate 17 for colliding with the separated water overflowing and discharging the water and recovering its energy, and is inclined with respect to the radial line of the bowl 2. It is protrudingly provided on the outer surface.

【００１２】上記構成の装置によれば、排出孔11より排
出される分離水は、 せき板15を越流して、ボウル２の回
転とそれにともなう遠心力によって、矢印で示すよう
に、回転方向斜め前外方に向けて高速で排出されるが、
その分離水はせき板15に設けられた羽根板17に衝当し、
その力がボウル２にその回転方向と同方向の回転力を付
与することになる。したがって、その回転力を付加され
た分だけボウル２を回転させるための動力が軽減される
結果となるのである。そして、分離水は羽根板17に衝当
した後、回収室13を経てその下端より機外に排出される
ことになる。According to the apparatus having the above-described structure, the separated water discharged from the discharge hole 11 flows over the weir plate 15 and is rotated obliquely by the rotation of the bowl 2 and the centrifugal force associated therewith as shown by the arrow. It is discharged at high speed toward the front and outside,
The separated water hits a slat 17 provided on the weir 15
The force gives the bowl 2 a rotational force in the same direction as the rotational direction. Therefore, the power for rotating the bowl 2 by the amount to which the rotational force is added is reduced. Then, after the separated water strikes the slats 17, the separated water is discharged to the outside from the lower end through the recovery chamber 13.

【００１３】上記本発明の装置を設けた遠心分離機と従
来機との、ボウル２及びスクリューコンベア３を回転さ
せる主モーターの消費動力の比較について試験を行った
が、従来機では、汚泥投入流量の単位当り2.0kwH/m3 で
あるのに対し、本発明の装置を設けたものでは、1.4kwH
/m3 と、約30％の動力が軽減されるという結果が得られ
た。A test was conducted to compare the power consumption of the main motor for rotating the bowl 2 and the screw conveyor 3 between the centrifugal separator provided with the apparatus of the present invention and the conventional machine. Is 2.0 kwH / m 3 per unit, whereas in the case where the apparatus of the present invention is provided, 1.4 kwH / m 3 is used.
/ m 3 , a result of about 30% reduction in power.

【００１４】上記の実施例では、せき板15に羽根板17を
単一に設けているが、これに限定されるものではない。
例えば図４に示すように、複数の羽根板17を間隔をおい
て設けることもできる。また、図５に示すように、羽根
板17は弧状に弯曲して、分離水排出のエネルギーを効率
よく回収できる形状のものにすることもできる。この場
合も複数のものを隔設できることはいうまでもない。In the above-described embodiment, the blade plate 17 is provided solely on the weir plate 15, but the invention is not limited to this.
For example, as shown in FIG. 4, a plurality of blades 17 may be provided at intervals. Further, as shown in FIG. 5, the blade plate 17 may be curved in an arc shape so as to be capable of efficiently collecting the energy for discharging the separated water. In this case, it is needless to say that a plurality of components can be provided separately.

【００１５】また、羽根板17は、図６に示すように、断
面Ｌ形にして、排出分離水の遠心力による径方向外方へ
の流れを阻止するようにしてやれば、分離水排出エネル
ギーの回収率がより向上される。また、図７に示すよう
に、隔設した羽根板17をボックス18で囲んで排出分離水
の流れを制御するようにすることもできる。Further, as shown in FIG. 6, the blade plate 17 has an L-shaped cross section so as to prevent the flow of the discharged separated water to the radially outward due to the centrifugal force of the discharged separated water. Recovery is further improved. Further, as shown in FIG. 7, the separated blade plate 17 may be surrounded by a box 18 to control the flow of the discharged separated water.

【００１６】次に、本発明の第２の装置について説明す
る。この装置では、図８、図９に示すように、ボウル２
の一端にある端板10の排水孔が弧状に大きくした排出孔
11ａとなっている。すなわち、排出孔11ａは、径方向に
所要の幅を有する、周方向に長い弧状の孔に形成されて
おり、その排出孔11が周方向に所要の間隔19をおいて複
数配設したものとなっている。Next, a second apparatus of the present invention will be described. In this device, as shown in FIGS.
The drain hole of the end plate 10 at one end of the
11a. That is, the discharge holes 11a are formed in a circular arc-shaped hole having a required width in the radial direction and long in the circumferential direction, and a plurality of the discharge holes 11 are arranged at a required interval 19 in the circumferential direction. Has become.

【００１７】そして、各排出孔11には、扇状のせき板15
ａがボルト等16により着脱自在に取り付けられ、そのせ
き板15ａには、上記各実施例におけると同様に、分離水
の衝当する羽根板17の複数が間隔をおいて放射状に突設
されている。なお、この場合も、羽根板17は平板のもの
を用いてもよく、また、図７に示すようなボックス18を
付加することもできる。Each discharge hole 11 has a fan-shaped dam 15
a is removably attached by bolts 16 and the like, and a plurality of blade plates 17 against which separated water strikes are radially protruded from the weir plate 15a at intervals as in the above embodiments. I have. Also in this case, the blade plate 17 may be a flat plate, or a box 18 as shown in FIG. 7 may be added.

【００１８】この第２の装置では、上記のような分離水
の排出エネルギーの回収に加え、分離水質、濃縮汚泥等
の回収率の向上が図れる。すなわち、従来機では分離水
の排出面積が狭いため、分離水排出部の流れが乱れるの
で、分離水質を良好に維持するために、投入汚泥量を抑
制していたが、第２の位置では、排出孔11ａの面積が大
幅に増大されるとともに、せき幅もそれに応じて大とな
るので、分離水排出部の流れの乱れが小さくなることか
ら、汚泥投入量を増大しても分離水質を良好に保つこと
ができ、その結果、濃縮汚泥等の回収率が良好となる。In the second apparatus, in addition to the recovery of the discharge energy of the separated water as described above, the quality of the separated water and the recovery rate of the concentrated sludge can be improved. That is, in the conventional machine, the flow of the separated water discharge portion is disturbed because the separated water discharge area is small, so that the amount of sludge input was suppressed to maintain the quality of the separated water in good condition. Since the area of the discharge hole 11a is greatly increased, and the crest width is correspondingly large, the turbulence of the flow of the separated water discharge section is reduced. , And as a result, the recovery rate of the concentrated sludge and the like is improved.

【００１９】上記した各せき板15，15ａは、これを取り
付けた際、その排出孔11, 11ａに臨む側が排水孔11の中
にどれだけ突出しているかによって排出水位が決まるの
で、幅の異なる各種のせき板15，15ａを用意しておけ
ば、それらせき板15，15ａをつけ換えることにより、所
望の排出水位に対応させることができる。When the weirs 15 and 15a are attached, the discharge water level is determined by how much the side facing the discharge holes 11 and 11a projects into the drain hole 11. If the dams 15 and 15a are prepared, it is possible to correspond to a desired discharge water level by changing the dams 15 and 15a.

【００２０】[0020]

【発明の効果】以上説明したように、本発明は、スクリ
ューコンベアを収容したボウルの一端に設けられた分離
水排出孔のせき板に、排出される分離水に衝当する羽根
板を設けたので、無駄に放出されていた分離水の排出エ
ネルギーが有効に回収できることになり、ボウル等の回
転に要する動力が大幅に節減され、遠心分離機の経済性
が向上できる。特に、請求項１の装置では、従来機自体
の構造を殆んど変えることなく実施でき、また、請求項
２の装置では、ボウルの端板の形状を少し変えるだけで
すむばかりでなく、分離水の排出面積及び越流せき幅が
大きく取れることから、分離水排出部の流れの乱れが減
少され、その結果、分離水質を良好に保ち、汚泥等の濃
縮濃度を高め、回収率の向上が図れる。As described above, according to the present invention, a blade plate for striking the separated water discharged is provided on the crest plate of the separated water discharge hole provided at one end of the bowl accommodating the screw conveyor. Thus, the waste energy of the separated water that has been wasted can be effectively recovered, the power required for rotating the bowl and the like can be greatly reduced, and the economics of the centrifuge can be improved. In particular, the apparatus according to claim 1 can be implemented without changing the structure of the conventional machine itself, and the apparatus according to claim 2 requires not only a slight change in the shape of the end plate of the bowl but also the separation. Since the water discharge area and overflow width can be made large, turbulence in the flow of the separated water discharge section is reduced, and as a result, the separated water quality is kept good, the concentration of sludge etc. is increased, and the recovery rate is improved. I can do it.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明の第１の装置の一実施例を示す側断面図
である。FIG. 1 is a side sectional view showing one embodiment of a first device of the present invention.

【図２】同正断面図である。FIG. 2 is a front sectional view of the same.

【図３】せき板を設けた部分の拡大斜面図である。FIG. 3 is an enlarged perspective view of a portion provided with a weir plate.

【図４】同他の実施例を示したものである。FIG. 4 shows another embodiment.

【図５】同さらに他の実施例を示したものである。FIG. 5 shows another embodiment of the present invention.

【図６】同さらに他の実施例を示したものである。FIG. 6 shows still another embodiment.

【図７】同さらに他の実施例を示したものである。FIG. 7 shows still another embodiment.

【図８】本発明の第２の装置の一実施例を示す側断面図
である。FIG. 8 is a side sectional view showing one embodiment of the second apparatus of the present invention.

【図９】同せき板を設けた部分の拡大斜面図である。FIG. 9 is an enlarged perspective view of a portion provided with the weir.

【図10】遠心分離機の概略を示す側断面図である。FIG. 10 is a side sectional view schematically showing a centrifuge.

【図11】従来の排出装置部分を示す正断面図である。FIG. 11 is a front sectional view showing a conventional discharge device portion.

【符号の説明】[Explanation of symbols]

１ ケーシング ２ ボウル ３ スクリューコンベア ４ 回転胴 ５ スクリュー ６ 中空軸 ７ 供給管 ８ 環状空間 ９ 汚泥等排出口 10 端板 11，11ａ 排出孔 12 支軸 13 回収室 15，15ａ せき板 17 受圧板 DESCRIPTION OF SYMBOLS 1 Casing 2 Bowl 3 Screw conveyor 4 Rotating drum 5 Screw 6 Hollow shaft 7 Supply pipe 8 Annular space 9 Sludge discharge port 10 End plate 11, 11a Discharge hole 12 Support shaft 13 Collection chamber 15, 15a Wet plate 17

───────────────────────────────────────────────────── フロントページの続き (72)発明者 松井 寛幸 大阪市浪速区敷津東一丁目２番47号 株式 会社クボタ内 ──────────────────────────────────────────────────続 き Continued from the front page (72) Inventor Hiroyuki Matsui 2-47 Shishitsu Higashi, Naniwa-ku, Osaka City Kubota Corporation

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 高速回転されるボウル内に、該ボウルと
相対速度差をもって回転されるスクリューコンベアを収
容し、スクリューコンベアの一端側より汚泥を供給して
固液分離し、他端側から濃縮汚泥等を、一端側から分離
水を排出するようにした遠心分離機において、分離水の
排出孔を開設したボウルの端板の外面に、分離水の排出
水位を設定するせき板を着脱自在に取り付けるととも
に、そのせき板の外面に、排出孔より排出する分離水と
衝当する羽根板を突設したことを特徴とする、横型遠心
分離機における分離水の排出装置。1. A screw conveyor which is rotated at a relative speed difference from the bowl is accommodated in a bowl which is rotated at a high speed, sludge is supplied from one end of the screw conveyor, solid-liquid separated, and concentrated from the other end. In a centrifugal separator that discharges separated water from one end side of sludge, etc., a weir plate that sets the discharged water level of the separated water is detachably attached to the outer surface of the end plate of the bowl that has the discharge hole for the separated water. A separated water discharge device in a horizontal centrifuge, wherein a blade plate is provided on an outer surface of the weir to impinge against separated water discharged from a discharge hole. 【請求項２】 高速回転されるボウル内に、該ボウルと
相対速度差をもって回転されるスクリューコンベアを収
容し、スクリューコンベアの一端側より汚泥を供給して
固液分離し、他端側から濃縮汚泥等を、一端側から分離
水を排出するようにした遠心分離機において、ボウルの
一端を塞ぐ端板に、弧状に長く形成した排出孔を周方向
に隔設し、それら各排出孔に対して、分離水の排出水位
を設定するせき板を着脱自在に取り付けるとともに、そ
れらせき板に、排出孔より排出する分離水と衝当する羽
根板を突設したことを特徴とする、横型遠心分離におけ
る分離水の排出装置。2. A screw conveyor rotated at a relative speed difference from the bowl is accommodated in a bowl rotated at a high speed, sludge is supplied from one end of the screw conveyor, solid-liquid separated, and concentrated from the other end. In a centrifugal separator that discharges separated water from one end side of sludge, etc., a discharge plate formed in an end plate that closes one end of a bowl is formed with a long discharge hole formed in an arc shape in a circumferential direction. Horizontal centrifugal separator characterized by detachably attaching dams for setting the discharge level of separated water, and protruding blades that strike the separated water discharged from the discharge holes on the dams. For draining separated water.
JP36573497A 1997-12-22 1997-12-22 Separation water discharge device in horizontal centrifuge Expired - Fee Related JP3543597B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP36573497A JP3543597B2 (en) 1997-12-22 1997-12-22 Separation water discharge device in horizontal centrifuge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP36573497A JP3543597B2 (en) 1997-12-22 1997-12-22 Separation water discharge device in horizontal centrifuge

Publications (2)

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JPH11179236A true JPH11179236A (en) 1999-07-06
JP3543597B2 JP3543597B2 (en) 2004-07-14

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