DE102004010857A1 - Device for pumping and de-stubbing a pulp stock containing pollutant - Google Patents
Device for pumping and de-stubbing a pulp stock containing pollutant Download PDFInfo
- Publication number
- DE102004010857A1 DE102004010857A1 DE200410010857 DE102004010857A DE102004010857A1 DE 102004010857 A1 DE102004010857 A1 DE 102004010857A1 DE 200410010857 DE200410010857 DE 200410010857 DE 102004010857 A DE102004010857 A DE 102004010857A DE 102004010857 A1 DE102004010857 A1 DE 102004010857A1
- Authority
- DE
- Germany
- Prior art keywords
- pump
- impeller
- pump impeller
- impact pieces
- pulp 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.)
- Ceased
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D1/00—Methods of beating or refining; Beaters of the Hollander type
- D21D1/20—Methods of refining
- D21D1/34—Other mills or refiners
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/30—Defibrating by other means
- D21B1/34—Kneading or mixing; Pulpers
- D21B1/345—Pulpers
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Die Vorrichtung dient dazu, eine Papierstoffsuspension (S) zu pumpen und gleichzeitig zu entstippen. Dazu wird das Pumpenlaufrad (4) mit feststehenden Prallstücken (7) versehen, die sich in einem definierten Abstand (e) zum Pumpenlaufrad (4) befinden.The device serves to pump a pulp suspension (S) and dewax at the same time. For this purpose, the pump impeller (4) is provided with fixed impact pieces (7), which are located at a defined distance (e) to the pump impeller (4).
Description
Die Erfindung betrifft eine Vorrichtung gemäß dem Oberbegriff des Anspruchs 1.The The invention relates to a device according to the preamble of the claim 1.
Bekanntlich werden in einem großen Umfang Papierrohstoffe zur Papierherstellung in Suspension gebracht, welche einen mehr oder weniger großen Anteil an Störstoffen enthalten. Derartige Störstoffe sind überwiegend Kunststoffteile und -folien, Drähte, Glasscherben, Sand etc. Selbstverständlich sollen die Störstoffe möglichst frühzeitig aus dem Prozess entfernt werden. Zum einen, um die zur Bearbeitung benutzten Maschinen vor Verschleiß zu schützen und zum anderen wegen der Qualitätsanforderungen an das spätere Papier. Nach Vermischung mit Wasser (z.B. in einem Stofflöser) wird der Rohstoff mechanisch bearbeitet, wobei in Folge des Quellens der Papierrohstoffe diese zerfallen, während ein großer Teil der Störstoffe seine Festigkeit beibehält. Dadurch bleiben z.B. Plastikfolien relativ großflächig erhalten und können später aussortiert werden. Aber auch Stippen bleiben zu einem beträchtlichen Teil erhalten. Das hat den Nachteil, dass in den üblicherweise nachgeschalteten Sortiervorrichtungen ein Verlust der faserstoffhaltigen Stippen in Kauf genommen werden muss. Solche Sortiervorrichtungen können nämlich nicht ausreichend zwischen den unerwünschten Störstoffen, z.B. Plastikfolien und den an sich noch wertvollen faserstoffhaltigen Stippen unterscheiden.generally known be in a big one Scope paper raw materials suspended in papermaking, which a more or less large amount of impurities contain. Such contaminants are predominantly Plastic parts and foils, wires, Broken glass, sand, etc. Of course, the impurities preferably early be removed from the process. For one thing, for editing used machines to protect against wear and for another the quality requirements to the later Paper. After mixing with water (e.g., in a pulper) the raw material is mechanically processed, whereby as a result of swelling the paper raw materials disintegrate these while a large part the contaminants maintains its strength. This leaves e.g. Plastic films received relatively large area and can be sorted out later. But also specks remain preserved to a considerable extent. The has the disadvantage that in the usual downstream sorting devices a loss of fiber-containing Specks must be accepted. Such sorting devices can namely not sufficiently between the undesired impurities, e.g. plastic sheets and the still valuable fiber-containing specks differ.
Der Erfindung liegt daher die Aufgabe zu Grunde, eine Vorrichtung der angegebenen Art zu schaffen, mit der es möglich ist, auf möglichst einfache Art und Weise zumindest einen großen Teil der Stippen so weit zu zerlegen, dass sie in nachgeschalteten Sortierern oder Reinigern nicht mehr ausgeschieden werden.Of the The invention is therefore based on the object, a device of to create the specified type, with which it is possible on as possible simple way at least a large part of the specks so far disassemble them in downstream sorters or cleaners no longer be excreted.
Diese Aufgabe wird durch die im Kennzeichen des Anspruchs 1 genannten Merkmale vollständig gelöst.These The object is achieved by the mentioned in the characterizing part of claim 1 Features completely solved.
Mit Hilfe der erfindungsgemäßen Vorrichtung können die in der Suspension enthaltenen Stippen mit geringem Aufwand zumindest teilweise zerkleinert oder ganz aufgelöst werden. Das ist insbesondere dadurch möglich, dass sich zwischen den Prallstücken und den rotierenden Teilen des Pumpenlaufrades ein definierter Abstand befindet, der in der Regel zwischen zwei und zwanzig Millimeter, vorzugsweise fünf bis zehn Millimeter, beträgt. Ein weiterer Vorteil der Erfindung liegt darin, dass die Vorrichtung die Funktion einer ohnehin vorhandenen Apparatur, nämlich der Stoffpumpe, ebenfalls übernehmen kann. Aus diesem Grunde ist der zusätzliche apparative und energetische Aufwand relativ gering, insbesondere gemessen an dem Nutzen, den eine solche Vorrichtung bietet.With Help the device according to the invention, the in the suspension contained specks with little effort, at least partially crushed or completely dissolved. That is in particular thereby possible that is between the baffles and the rotating parts of the pump impeller a defined distance which is usually between two and twenty millimeters, preferably five to ten millimeters, is. Another advantage of the invention is that the device the function of an already existing apparatus, namely the Fuel pump, also can take over. That's why the extra apparatus and energy costs relatively low, in particular measured by the utility that such a device offers.
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:
Die
Die
Form der Prallstücke
beeinflusst die zerfasernde Wirkung der Vorrichtung. In
Eine ähnliche
Vorrichtung wie in
Eine
weitere Möglichkeit
zur Verwendung des Erfindungsgegenstandes zeigt die
Claims (14)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410010857 DE102004010857A1 (en) | 2004-03-05 | 2004-03-05 | Device for pumping and de-stubbing a pulp stock containing pollutant |
EP05002087A EP1571256A1 (en) | 2004-03-05 | 2005-02-02 | Process for pumping and deflaking a fibre suspension containing impurities |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410010857 DE102004010857A1 (en) | 2004-03-05 | 2004-03-05 | Device for pumping and de-stubbing a pulp stock containing pollutant |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004010857A1 true DE102004010857A1 (en) | 2005-11-03 |
Family
ID=34745409
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200410010857 Ceased DE102004010857A1 (en) | 2004-03-05 | 2004-03-05 | Device for pumping and de-stubbing a pulp stock containing pollutant |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1571256A1 (en) |
DE (1) | DE102004010857A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104373362A (en) * | 2013-08-12 | 2015-02-25 | 苏州维艾普新材料股份有限公司 | Planar draw-off equipment for materials |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3340858A1 (en) * | 1982-11-30 | 1984-05-30 | A. Ahlström Oy, Noormarkku | Process and device for defibrating pretreated waste paper |
DE19637031A1 (en) * | 1996-09-12 | 1998-03-19 | Boltersdorf Hans Joachim | Recovery process for fibrous and plastic materials from rejects from pulpers |
WO1999027177A1 (en) * | 1997-11-21 | 1999-06-03 | Thermo Black Clawson Inc. | Method for deinking and other contaminent removal from wastepaper |
DE69330677T2 (en) * | 1992-03-20 | 2002-04-18 | Ivar H Stockel | CONDITIONING WASTE PAPER BALLS FOR REUSE |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH613240A5 (en) * | 1976-12-08 | 1979-09-14 | Escher Wyss Gmbh | Pulper for pulping and sorting waste paper |
ATE39141T1 (en) * | 1984-06-09 | 1988-12-15 | Finckh Maschf | DISSOLVING AND SORTING PLANT FOR WASTE PAPER. |
DE3701400A1 (en) * | 1986-02-18 | 1987-10-08 | Voith Gmbh J M | Sorting device for fibre suspensions |
DE19523704C2 (en) * | 1995-06-29 | 2000-08-10 | Voith Sulzer Stoffaufbereitung | Device for the mechanical treatment of highly consistent fiber |
-
2004
- 2004-03-05 DE DE200410010857 patent/DE102004010857A1/en not_active Ceased
-
2005
- 2005-02-02 EP EP05002087A patent/EP1571256A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3340858A1 (en) * | 1982-11-30 | 1984-05-30 | A. Ahlström Oy, Noormarkku | Process and device for defibrating pretreated waste paper |
DE69330677T2 (en) * | 1992-03-20 | 2002-04-18 | Ivar H Stockel | CONDITIONING WASTE PAPER BALLS FOR REUSE |
DE19637031A1 (en) * | 1996-09-12 | 1998-03-19 | Boltersdorf Hans Joachim | Recovery process for fibrous and plastic materials from rejects from pulpers |
WO1999027177A1 (en) * | 1997-11-21 | 1999-06-03 | Thermo Black Clawson Inc. | Method for deinking and other contaminent removal from wastepaper |
Also Published As
Publication number | Publication date |
---|---|
EP1571256A1 (en) | 2005-09-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8127 | New person/name/address of the applicant |
Owner name: VOITH PATENT GMBH, 89522 HEIDENHEIM, DE |
|
8131 | Rejection |