JPH0698515B2 - Screw press operating method and device - Google Patents
Screw press operating method and deviceInfo
- Publication number
- JPH0698515B2 JPH0698515B2 JP2332872A JP33287290A JPH0698515B2 JP H0698515 B2 JPH0698515 B2 JP H0698515B2 JP 2332872 A JP2332872 A JP 2332872A JP 33287290 A JP33287290 A JP 33287290A JP H0698515 B2 JPH0698515 B2 JP H0698515B2
- Authority
- JP
- Japan
- Prior art keywords
- outer cylinder
- screw
- pressure fluid
- screw press
- rotation
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B9/00—Presses specially adapted for particular purposes
- B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
- B30B9/12—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing
- B30B9/125—Control arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Treatment Of Sludge (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、スクリュープレスの運転方法並びにその装
置に関し、この発明では土砂排水汚泥の如く、非圧搾性
の無機質の粒子を含む汚泥の圧搾に用いて卓効を奏する
運転方法並びに運転装置を提供せんとするものである。Description: TECHNICAL FIELD The present invention relates to a method of operating a screw press and an apparatus therefor, and in the present invention, it is used for squeezing sludge containing non-squeezable inorganic particles, such as sediment drainage sludge. The present invention intends to provide a driving method and a driving device which are excellent in use.
従来の土砂排水汚泥を圧搾脱水するスクリュープレス
は、固定した外筒内にスクリュー軸を支架して、そのス
クリューで外筒の一端に供給した汚泥を他端に向って搬
送しつつ圧搾して固液分離をしている。The conventional screw press that squeezes and dewaters the sediment drainage sludge has a screw shaft supported in a fixed outer cylinder, and the sludge supplied to one end of the outer cylinder by the screw is compressed toward the other end while being compressed. Liquid is being separated.
然しながら、土砂排水汚泥の如く無機質の粒子よりなる
汚泥は、一定のところまで圧搾すると粒子が固まって剛
体状となり、いくら加圧圧搾しても粒子間に存在する水
を取ることはできない。However, sludge composed of inorganic particles, such as sediment drainage sludge, hardens when it is pressed to a certain point and becomes a rigid body, and no matter how much pressure is applied, water existing between particles cannot be removed.
そして、このような状態で、さらに加圧圧搾すると遂に
は、スクリュー羽根や外筒がこわれるおそれがある。こ
の発明は、一定限度の加圧圧搾をした場合、スクリュー
や外筒に無理のかからぬように、これらが共回わりする
ようにするとともに、この共回わりを自動的に停止して
再び加圧圧搾運転ができるようにしたものである。Then, in such a state, if the pressurization is further performed, the screw blades or the outer cylinder may be broken. The present invention allows the screw and the outer cylinder to rotate together so as not to force the screw and the outer cylinder when pressurizing to a certain limit, and automatically stops and co-rotates this rotation together. It is designed to enable compression operation.
この発明では、上述のような作動をなさしめるために次
のような手法・手段を講じたものである。すなわち、外
筒をスクリューに対して回転可能に支架したスクリュー
プレスにおいて、外筒に一定のトルク以下ではその回転
を係止することができる係止装置を設け、その係止装置
と少なくとも外筒周辺に設けた高圧流体の噴射ノズルへ
の高圧流体の供給ポンプとを連動連結して外筒に一定以
上のトルクがかかったとき、噴射ノズルから高圧流体を
噴射するようにしたものである。In the present invention, the following techniques and means are provided to achieve the above-described operation. That is, in a screw press in which an outer cylinder is rotatably supported with respect to a screw, a locking device capable of locking the rotation of the outer cylinder at a certain torque or less is provided, and the locking device and at least the periphery of the outer cylinder. The high pressure fluid supply pump for supplying the high pressure fluid to the injection nozzle of the high pressure fluid is interlocked and the high pressure fluid is ejected from the injection nozzle when a torque greater than a certain level is applied to the outer cylinder.
この発明における外筒は、スクリューによって汚泥等が
順調に搬送圧搾されているときには、その回転が停止し
ている。The rotation of the outer cylinder in the present invention is stopped when the sludge or the like is smoothly conveyed and squeezed by the screw.
次に、汚泥等の圧搾物がスクリューと外筒との間に充満
したときには、スクリューと一体となって共回わりをす
るものである。Next, when the compressed material such as sludge fills the space between the screw and the outer cylinder, it rotates together with the screw.
すなわち、このように汚泥等の圧搾物が充満したときに
無理にスクリューを駆動すると外筒やスクリューが破損
し、遂には機械自体が破損するのであり、特に、土砂排
水汚泥の如く非圧縮性の汚泥の場合にはこの傾向が顕著
であるが、この発明では圧搾物が充満したとき、外筒が
スクリューと共回わりをするので、上述のような破損・
破壊をまぬがれることができる。That is, when the screw is forcibly driven when the compressed material such as sludge is thus filled, the outer cylinder and the screw are damaged, and the machine itself is eventually damaged. This tendency is remarkable in the case of sludge, but in the present invention, when the squeezed material is filled, the outer cylinder rotates together with the screw.
Can survive destruction.
然も、この発明では、外筒が共回わりを始めるのに連動
して外筒周辺に設けた噴射ノズルから高圧流体を外筒に
向けて噴出するのでこの流体が外筒の目を通ってその内
面に達し、圧搾物との接触面を潤し、接触面をスリップ
させる。However, according to the present invention, since the high pressure fluid is ejected toward the outer cylinder from the injection nozzle provided around the outer cylinder in conjunction with the outer cylinder starting to rotate together, this fluid passes through the eyes of the outer cylinder. It reaches its inner surface, moistens the contact surface with the pressed product, and slips the contact surface.
この結果、圧搾物はスクリューによって排出口へと送ら
れ圧搾脱水運転を継続することができる。すなわち、こ
の発明では外筒に過大な負荷がかかれば、自動的に高圧
流体によって外筒を洗滌すると同時に過大な負荷を取除
いて連続した運転をすることができるものである。As a result, the squeezed material is sent to the discharge port by the screw and the squeezing and dehydrating operation can be continued. That is, according to the present invention, if an excessive load is applied to the outer cylinder, the outer cylinder can be automatically washed with the high-pressure fluid, and at the same time, the excessive load can be removed for continuous operation.
以下、図面にしたがって、この発明を具体的に説明す
る。Hereinafter, the present invention will be specifically described with reference to the drawings.
第１図は、この発明に係るスクリュープレスの縦断側面
図であり、図中、符号１は周部にスクリーンを張設した
外筒、２は外筒内に支架したスクリュー軸、３はスクリ
ューである。FIG. 1 is a vertical cross-sectional side view of a screw press according to the present invention. In the drawing, reference numeral 1 is an outer cylinder having a screen stretched around its periphery, 2 is a screw shaft supported in the outer cylinder, and 3 is a screw. is there.
外筒１は一端がスクリュー軸２によって支持されるとと
もに、その前後のフランジ2aがローラー４によって支持
されていて、スクリュー軸２に対して回転可能に嵌挿さ
れているが、常態においては、その端部のフランジ2aに
固定した受圧板５が支持フレーム６に固定した加圧板７
のスプリング８によって押圧されて制動されている。One end of the outer cylinder 1 is supported by the screw shaft 2, and the front and rear flanges 2a thereof are supported by the rollers 4 and are rotatably fitted to the screw shaft 2, but in the normal state, The pressure receiving plate 5 fixed to the end flange 2a is a pressure plate 7 fixed to the support frame 6.
It is pressed and braked by the spring 8.
次に、符号９は外筒１の周辺に設けた洗浄用のノズル管
であり、高圧ポンプ10に連結されており、この高圧ポン
プ10にはコントローラー11を介して前述受圧板５の周辺
に設けたセンサー12が連結されている。Next, reference numeral 9 is a cleaning nozzle tube provided around the outer cylinder 1 and is connected to a high-pressure pump 10. The high-pressure pump 10 is provided around the pressure receiving plate 5 via a controller 11. The sensor 12 is connected.
また、符号13はスクリュー軸内に設けた液の吸引とス
クリュー軸２のスクリーンの洗浄を兼ねたノズル管であ
り、このノズル管13は主管14に連結されたのち、機外に
取出されて吸引ポンプ15と前述高圧ポンプ10とに三方切
替弁16を介して連結してある。Further, reference numeral 13 is a nozzle tube provided both inside the screw shaft for suctioning the liquid and for cleaning the screen of the screw shaft 2. The nozzle pipe 13 is connected to the main pipe 14 and then taken out of the machine and sucked. The pump 15 and the high-pressure pump 10 are connected via a three-way switching valve 16.
尚、スクリュー軸２の駆動装置は、図示を省略している
が図中右方に設けられるものであり、原液はスクリュー
軸２の軸芯に設けた供給路17を経て外筒１内に供給され
るものであり、圧搾されたケーキは、外筒１の左端から
取出される。符号18はケーキの出口に設けた排出調節板
である。Although not shown, the drive device for the screw shaft 2 is provided on the right side in the figure, and the stock solution is supplied into the outer cylinder 1 through a supply passage 17 provided at the shaft core of the screw shaft 2. The pressed cake is taken out from the left end of the outer cylinder 1. Reference numeral 18 is a discharge adjusting plate provided at the exit of the cake.
この発明に係る装置は上述のように構成してあるので、
外筒１内に供給された原液はスクリュー３によって図中
左方に送られる間に固液分離されて液は外筒１の周辺
とスクリュー軸の内空とに取出され、ケーキは左端の外
筒１とスクリュー軸２との隙間から機外に取出される。Since the device according to the present invention is configured as described above,
The undiluted liquid supplied into the outer cylinder 1 is solid-liquid separated while being fed leftward in the figure by the screw 3, and the liquid is taken out to the periphery of the outer cylinder 1 and the inner space of the screw shaft, and the cake is left outside. It is taken out of the machine through the gap between the cylinder 1 and the screw shaft 2.
然しながら、供給される原液が土砂排水汚泥の如く非圧
縮性の粒子よりなる場合は、上述のような運転を継続す
ると、土砂の粒子は圧縮性がないことから外筒１とスク
リュー軸２の隙間内にケーキが充満し目詰りして脱水し
ないはもとより、後続するケーキによって最も弱体な外
筒１のスクリーンを破壊する事態が生ずる。However, when the undiluted liquid supplied is composed of incompressible particles such as sediment drainage sludge, if the operation as described above is continued, the particles of sediment will not be compressible, and therefore the gap between the outer cylinder 1 and the screw shaft 2 will be small. Not only does the cake fill up and become clogged to prevent dehydration, but the subsequent cake may destroy the screen of the weakest outer cylinder 1.
このような場合、この発明では外筒１が回転可能に支架
されていてスプリング８によってその回転にブレーキが
かけられた状態にあるので、その隙間がケーキで充満し
たときには、スプリング８のブレーキ力に打ち勝ってス
クリュー軸２と外筒１とが共回わりをして破損を防止す
ることができる。そして、このスクリュー軸２と外筒１
との共回わりは、センサー12によって検知され、その信
号によって高圧ポンプが作動し、洗浄ノズル9aで以て外
筒１に高圧水を噴射し、スクリーンの目詰り物を除去す
るとともに外筒１の内面を湿潤してスクリュー軸２を回
転させて圧搾運転を再開することができる。In such a case, in the present invention, since the outer cylinder 1 is rotatably supported and its rotation is braked by the spring 8, when the gap is filled with cake, the braking force of the spring 8 is reduced. By overcoming, the screw shaft 2 and the outer cylinder 1 rotate together to prevent damage. Then, the screw shaft 2 and the outer cylinder 1
Co-rotation with is detected by the sensor 12, the high-pressure pump is operated by the signal, high-pressure water is jetted to the outer cylinder 1 by the cleaning nozzle 9a, the clogging of the screen is removed, and the outer cylinder 1 It is possible to restart the squeezing operation by moistening the inner surface of the and rotating the screw shaft 2.
上記の高圧水によるスクリーンの洗浄と湿潤操作は、送
り軸２のスクリーンに対してもできるは勿論である。図
示のものでは、この送り軸２のスクリーンの洗浄湿潤を
常態では液を吸引しているノズル13を使用して行なう
ものであり、この場合、切替弁16によって高圧ポンプ10
の洗浄水をノズル管13に送るものである。Of course, the screen washing and wetting operation with high-pressure water can be performed on the screen of the feed shaft 2. In the example shown in the figure, the cleaning and wetting of the screen of the feed shaft 2 is performed by using the nozzle 13 that normally sucks the liquid. In this case, the high pressure pump 10 is operated by the switching valve 16.
The washing water is sent to the nozzle pipe 13.
以上のようにして、この発明では圧搾物が外筒内に充満
して圧搾不能となってスクリュー軸２と共回わりを始め
たときには、外筒１およびスクリュー軸２の目を洗浄し
てスクリュー軸２が独立して回転できるようにして圧搾
運転を自動的に再開し、この操作を繰り返して連続した
自動運転を可能としたものである。As described above, according to the present invention, when the squeezed material fills the outer cylinder and cannot be squeezed and starts to rotate together with the screw shaft 2, the outer cylinder 1 and the screw shaft 2 are washed to clean the screw. The shaft 2 is allowed to rotate independently, the squeezing operation is automatically restarted, and this operation is repeated to enable continuous automatic operation.
尚、図例では外筒１の回転を係止するのにスプリング８
で押圧しているが、この回転係止装置は、フレーム６と
外筒１との間に摩擦板を設けてもよく、図示のものに限
定されるものではない。In the illustrated example, the spring 8 is used to lock the rotation of the outer cylinder 1.
However, the rotation locking device may be provided with a friction plate between the frame 6 and the outer cylinder 1, and is not limited to the illustrated one.
このように、この発明はスクリュー軸に対して外筒を回
転可能に支架したスクリュープレスにおいて、スクリー
ン部が目詰りして外筒とスクリュー軸が一体となって共
回わりを始めたとき、洗浄ノズルから高圧流体を目詰り
部に噴射して目詰りを除去するとともにスクリーンとケ
ーキ部分を分離してスクリュー軸を回転させ圧搾操作を
自動的に再開させるものであり、スクリュープレスによ
る高圧搾作業時の機体の破損を防止することができ、特
に、スクリーンを再生しながら連続運転ができる点でス
クリュープレスの作業効率を格段に高め得るものであ
る。As described above, in the present invention, in the screw press in which the outer cylinder is rotatably supported with respect to the screw shaft, when the screen part is clogged and the outer cylinder and the screw shaft start to rotate together as a unit, cleaning is performed. High-pressure fluid is jetted from the nozzle to the clogging part to remove the clogging, the screen and cake parts are separated, and the screw shaft is rotated to automatically restart the squeezing operation. It is possible to prevent breakage of the machine body, and in particular, it is possible to remarkably improve the work efficiency of the screw press in that the screen can be continuously operated while being regenerated.
図面は、この発明に係るスクリュープレスの概略の縦断
側面図である。 １外筒、２スクリュー軸、３スクリュー 9a噴射ノズル、10高圧流体の供給ポンプThe drawing is a schematic vertical sectional side view of a screw press according to the present invention. 1 outer cylinder, 2 screw shaft, 3 screw 9a injection nozzle, 10 high-pressure fluid supply pump
Claims (2)
支架したスクリュープレスにおいて、予め外筒１の回転
を係止して、原液をスクリュー３で圧搾脱水するととも
に、圧搾物によってスクリュー３と外筒１が共回わり始
めたときには、これに連動して少なくとも外筒１の周辺
に設けたノズルから外筒１に対して高圧流体を噴射し、
外筒１と圧搾物とをスリップさせ、共回わりを停止させ
ることを特長とするスクリュープレスの運転方法。1. In a screw press in which an outer cylinder 1 is rotatably supported with respect to a screw 3, the rotation of the outer cylinder 1 is locked in advance to squeeze and dehydrate the stock solution with the screw 3, and the screw 3 is squeezed by a squeezed product. When the outer cylinder 1 and the outer cylinder 1 start to rotate together, a high pressure fluid is jetted to the outer cylinder 1 from a nozzle provided at least around the outer cylinder 1 in conjunction with this.
A method of operating a screw press, characterized in that the outer cylinder 1 and the pressed product are slipped to stop co-rotation.
したスクリュープレスにおいて、外筒に一定のトルク以
下ではその回転を係止することができる係止装置を設
け、その係止装置と少なくとも外筒周辺に設けた高圧流
体の噴射ノズルへの高圧流体の供給ポンプ10とを連動連
結して、外筒１に一定以上のトルクがかかったとき、噴
射ノズル9aから高圧流体を噴射するようにしたことを特
長とするスクリュープレスの運転装置。2. A screw press in which an outer cylinder is rotatably supported with respect to a screw, and an outer cylinder is provided with a locking device capable of locking the rotation of the outer cylinder at a predetermined torque or less, and at least the locking device. A high-pressure fluid supply pump 10 for supplying high-pressure fluid provided around the outer cylinder is interlockingly connected so that the high-pressure fluid is ejected from the injection nozzle 9a when a torque of a certain level or more is applied to the outer cylinder 1. A screw press operating device that is characterized by what has been done.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2332872A JPH0698515B2 (en) | 1990-11-29 | 1990-11-29 | Screw press operating method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2332872A JPH0698515B2 (en) | 1990-11-29 | 1990-11-29 | Screw press operating method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04200899A JPH04200899A (en) | 1992-07-21 |
| JPH0698515B2 true JPH0698515B2 (en) | 1994-12-07 |
Family
ID=18259748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2332872A Expired - Lifetime JPH0698515B2 (en) | 1990-11-29 | 1990-11-29 | Screw press operating method and device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0698515B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4863136B2 (en) * | 2006-03-29 | 2012-01-25 | 五洋建設株式会社 | Screw press type dehydrator |
| JP4988435B2 (en) * | 2007-05-28 | 2012-08-01 | 株式会社神鋼環境ソリューション | Screw press |
| US9561978B2 (en) * | 2012-04-20 | 2017-02-07 | Anaergia Inc. | Sludge screw thickener with screen rotation during cleaning |
| US9540270B2 (en) | 2012-04-20 | 2017-01-10 | Anaergia Inc. | Anaerobic treatment of industrial wastewater |
| AT519379B1 (en) | 2016-11-30 | 2020-02-15 | Derflinger Sen Franz | Device for the continuous squeezing of liquid from a suspension |
-
1990
- 1990-11-29 JP JP2332872A patent/JPH0698515B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04200899A (en) | 1992-07-21 |
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