DE102008011744A1 - Heavy parts separating method for fiber suspension in paper producing industry, involves measuring electrical conductivity of wear detector in certain time intervals using measuring device, and giving signal during change of conductivity - Google Patents
Heavy parts separating method for fiber suspension in paper producing industry, involves measuring electrical conductivity of wear detector in certain time intervals using measuring device, and giving signal during change of conductivity Download PDFInfo
- Publication number
- DE102008011744A1 DE102008011744A1 DE200810011744 DE102008011744A DE102008011744A1 DE 102008011744 A1 DE102008011744 A1 DE 102008011744A1 DE 200810011744 DE200810011744 DE 200810011744 DE 102008011744 A DE102008011744 A DE 102008011744A DE 102008011744 A1 DE102008011744 A1 DE 102008011744A1
- Authority
- DE
- Germany
- Prior art keywords
- wear
- hydrocyclone
- wall
- heavy parts
- suspension
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/08—Vortex chamber constructions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C11/00—Accessories, e.g. safety or control devices, not otherwise provided for, e.g. regulators, valves in inlet or overflow ducting
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
- D21D5/18—Purification of the pulp suspension by mechanical means; Apparatus therefor with the aid of centrifugal force
- D21D5/24—Purification of the pulp suspension by mechanical means; Apparatus therefor with the aid of centrifugal force in cyclones
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Centrifugal Separators (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Entfernen von Schwerteilen gemäß dem Oberbegriff des Anspruchs 1.The The invention relates to a method for removing heavy parts according to the preamble of claim 1.
Fasersuspensionen für die Papier- oder Kartonerzeugung enthalten je nach Herkunft eine gewisse Menge von Schwerteilen, wie etwa kleinen Metallstücken, Glasscherben, Sand oder kleinen Steinen. Bekanntlich werden in der Papier erzeugenden Industrie Hydrozyklone verwendet, um diese Schwerteile durch Zentrifugalkräfte zunächst aufzukonzentrieren und dann zumeist nach unten über eine Schwerteilöffnung auszuscheiden. Die Ausleitung der Schwerteile kann kontinuierlich in einem kleinen Teilstrom oder diskontinuierlich durch eine Schwerteilschleuse erfolgen. In Folge der Ansammlung von Schwerteilen in bestimmten Bereichen des Hydrozyklons ist dort mit erhöhtem Verschleiß zu rechnen, da solche Schwerteile abrasiv sind und an der Wand des Hydrozyklons entlang gleiten, wobei sie noch unter der Wirkung der Zentrifugalkräfte stehen. Neben der Erzielung einer guten Abscheidewirkung ist die Betriebssicherheit solcher Apparate besonders wichtig. Es hat sich gezeigt, dass im rauen Dauerbetrieb, der typisch ist für die meisten so eingesetzten Hydrozyklone, der Verschleiß so groß werden kann, dass ein Durchbrechen der Wandung an den gefährdeten Stellen erfolgt. Das führt nicht nur zum Totalausfall des Hydrozyklons, sondern auch zu einer enormen Verschmutzung der Anlage. Um so etwas zu vermeiden, werden die entsprechenden verschleißgefährdeten Teile in bestimmten Zeitabschnitten ausgewechselt. Da der Verschleißzustand jedoch nur abgeschätzt werden kann und oft auch von Hydrozyklon zu Hydrozyklon unterschiedlich ist, entstehen unnötige Kosten, wenn – wie sich oft erst nachträglich herausstellen lässt – das ausgetauschte Teil an sich noch betriebsfähig war.fiber suspensions for paper or board production included depending on Origin a certain amount of heavy parts, such as small pieces of metal, Broken glass, sand or small stones. As is known in the Paper-producing industry uses hydrocyclones to make these heavy parts initially concentrated by centrifugal forces and then mostly down over a Schwerteil opening excrete. The discharge of the heavy parts can be continuous in a small partial flow or discontinuously through a heavy-duty lock respectively. As a result of the accumulation of heavy parts in certain Regions of the hydrocyclone is there with increased wear too Calculate because such heavy parts are abrasive and on the wall of the hydrocyclone slide along while still under the action of centrifugal forces stand. In addition to achieving a good separation effect is the Operational safety of such devices particularly important. It has shown in rough continuous operation, which is typical for most used hydrocyclones, the wear so can become large, that breaking through the wall the endangered areas. That does not lead only to total failure of the hydrocyclone, but also to a huge pollution the plant. In order to avoid something like that, the corresponding ones will wear-prone parts in certain periods of time replaced. However, the state of wear is only estimated and can often be different from hydrocyclone to hydrocyclone is, incur unnecessary costs, if - like yourself Often only later can be pointed out - the replaced part was still operational.
Aus
der
Der Erfindung liegt daher die Aufgabe zu Grunde, ein Verfahren zu schaffen, mit dem es möglich ist, den Zeitpunkt leicht und exakt zu bestimmen, bei dem der Austausch eines solchen Verschleißteiles erforderlich ist.Of the The invention is therefore based on the object to provide a method with which it is possible to make the timing easy and accurate to determine in which the replacement of such a wearing part is required.
Diese Aufgabe wird durch die im Kennzeichen des Anspruchs 1 genannten Merkmale gelöst.These The object is achieved by the mentioned in the characterizing part of claim 1 Characteristics solved.
Ein spezieller Hydrozyklon, der zur Lösung geeignet ist, wird in Anspruch 10 beschrieben.One special hydrocyclone, which is suitable for solution is described in claim 10.
Spezielle Abscheidekonen, die zur Lösung dieser Aufgabe geeignet sind, werden in Anspruch 9 beschrieben.Specific Separation cones suitable for solving this problem are described in claim 9.
Durch die erfindungsgemäßen Maßnahmen wird gerade zum richtigen Zeitpunkt ein Signal gegeben, das den Austausch des entsprechenden Teiles auslösen kann. Ein solches Signal kann mit Vorteil in der Schaltwarte angezeigt werden oder ein akustisches oder optisches Signal vor Ort sein. Wenn alle Hydrozyklone einer Stoffaufbereitungsanlage erfindungsgemäß ausgerüstet werden, ist die individuelle Überwachung möglich. Es kann aber auch wirtschaftlich sein, einzelne Gruppen von Hydrozyklonen zusammenzufassen, die erfahrungsgemäß gleichzeitig verschlissen sind und dann die Anzahl der Meldevorrichtungen entsprechend zu reduzieren.By the measures according to the invention will just at the right time given a signal that the exchange of the corresponding part can trigger. Such a signal can be displayed with advantage in the control room or an acoustic or optical signal on site. If all hydrocyclones one Stock preparation plant according to the invention equipped individual monitoring is possible. But it can also be economical, individual groups of hydrocyclones to summarize, which according to experience, worn at the same time and then the number of message devices accordingly to reduce.
Die Erfindung und ihre Vorteile werden erläutert an Hand von Zeichnungen. Dabei zeigen:The The invention and its advantages are explained with reference to Drawings. Showing:
In
Die
Es
gibt auch die Möglichkeit, die Verschleißschicht
Entweder
es wird eine keramische Paste auf die Innenwand des Stützkörpers
Either there will be a ceramic paste on the inner wall of the support body
Der
in
Um
die relativ teure Verschleißschicht
Neben
dem gezeigten Beispiel eines Drahtes kann auch eine Metallschicht
Neben
den gezeigten Möglichkeiten, die Verschleißüberwachung
am ganzen Umfang des Hydrozyklons anzuwenden, kann es auch ausreichend sein,
den Verschleißmelder hauptsächlich in axialer Richtung
auszurichten. Hierfür zeigen die
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - EP 0429919 A1 [0003] EP 0429919 A1 [0003]
Claims (9)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810011744 DE102008011744A1 (en) | 2008-02-28 | 2008-02-28 | Heavy parts separating method for fiber suspension in paper producing industry, involves measuring electrical conductivity of wear detector in certain time intervals using measuring device, and giving signal during change of conductivity |
FI20090007U FIU20090007U0 (en) | 2008-02-28 | 2009-01-13 | Process for removing heavy particles from fiber suspension using a hydrocyclone and apparatus for carrying out the process |
AT0003009U AT11016U1 (en) | 2008-02-28 | 2009-01-20 | METHOD FOR REMOVING HEAVY DUTIES FROM A FIBER SUSPENSION USING A HYDROCYCLONE AND DEVICES FOR CARRYING OUT THE METHOD |
FI20090075U FI8426U1 (en) | 2008-02-28 | 2009-02-25 | Hydrocyclone and separation cone |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810011744 DE102008011744A1 (en) | 2008-02-28 | 2008-02-28 | Heavy parts separating method for fiber suspension in paper producing industry, involves measuring electrical conductivity of wear detector in certain time intervals using measuring device, and giving signal during change of conductivity |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102008011744A1 true DE102008011744A1 (en) | 2009-09-03 |
Family
ID=40329549
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200810011744 Withdrawn DE102008011744A1 (en) | 2008-02-28 | 2008-02-28 | Heavy parts separating method for fiber suspension in paper producing industry, involves measuring electrical conductivity of wear detector in certain time intervals using measuring device, and giving signal during change of conductivity |
Country Status (3)
Country | Link |
---|---|
AT (1) | AT11016U1 (en) |
DE (1) | DE102008011744A1 (en) |
FI (2) | FIU20090007U0 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012085549A1 (en) * | 2010-12-20 | 2012-06-28 | Cyclotech Limited | Hydrocyclone with wear detector |
AU2018200426B2 (en) * | 2013-08-09 | 2018-10-04 | Weir Minerals Australia Ltd | Cyclone separator apparatus and methods of production |
WO2019180549A1 (en) * | 2018-03-21 | 2019-09-26 | Weir Canada, Inc. | Wear-levelling apparatus for cyclones |
DE102020103756A1 (en) | 2020-01-16 | 2021-07-22 | Akw Apparate + Verfahren Gmbh | Device for wear control on hydrocyclone apex or underflow nozzles |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0429919A2 (en) | 1989-11-22 | 1991-06-05 | Voith Sulzer Stoffaufbereitung GmbH | Arrangements for detecting the wear of a cyclone cone |
-
2008
- 2008-02-28 DE DE200810011744 patent/DE102008011744A1/en not_active Withdrawn
-
2009
- 2009-01-13 FI FI20090007U patent/FIU20090007U0/en not_active Application Discontinuation
- 2009-01-20 AT AT0003009U patent/AT11016U1/en not_active IP Right Cessation
- 2009-02-25 FI FI20090075U patent/FI8426U1/en not_active IP Right Cessation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0429919A2 (en) | 1989-11-22 | 1991-06-05 | Voith Sulzer Stoffaufbereitung GmbH | Arrangements for detecting the wear of a cyclone cone |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012085549A1 (en) * | 2010-12-20 | 2012-06-28 | Cyclotech Limited | Hydrocyclone with wear detector |
CN103442811A (en) * | 2010-12-20 | 2013-12-11 | 塞克洛泰克有限公司 | Hydrocyclone with wear detector |
AU2018200426B2 (en) * | 2013-08-09 | 2018-10-04 | Weir Minerals Australia Ltd | Cyclone separator apparatus and methods of production |
WO2019180549A1 (en) * | 2018-03-21 | 2019-09-26 | Weir Canada, Inc. | Wear-levelling apparatus for cyclones |
US11344899B2 (en) | 2018-03-21 | 2022-05-31 | Weir Canada, Inc. | Wear-levelling apparatus for cyclones |
DE102020103756A1 (en) | 2020-01-16 | 2021-07-22 | Akw Apparate + Verfahren Gmbh | Device for wear control on hydrocyclone apex or underflow nozzles |
Also Published As
Publication number | Publication date |
---|---|
FIU20090075U0 (en) | 2009-02-25 |
FIU20090007U0 (en) | 2009-01-13 |
FI8426U1 (en) | 2009-09-15 |
AT11016U1 (en) | 2010-03-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OR8 | Request for search as to paragraph 43 lit. 1 sentence 1 patent law | ||
R163 | Identified publications notified |
Effective date: 20120112 |
|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20140902 |