EP0093187A1 - Tambour de tamisage pour les appareils d'épuration des pâtes à papier - Google Patents

Tambour de tamisage pour les appareils d'épuration des pâtes à papier Download PDF

Info

Publication number: EP0093187A1
Authority: EP; European Patent Office
Prior art keywords: sieve; screen basket; screen; basket; wall
Prior art date: 1982-05-04
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

EP82103801A

Other languages

German (de)

English (en)

Other versions

EP0093187B2 (fr

EP0093187B1 (fr

Inventor

Emil Holz

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.)

Voith Finckh Fiber Systems GmbH and Co KG

Original Assignee

Hermann Finckh Maschinenfabrik GmbH and Co

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.)

1982-05-04

Filing date

1982-05-04

Publication date

1983-11-09

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8189017&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0093187(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1982-05-04 Application filed by Hermann Finckh Maschinenfabrik GmbH and Co filed Critical Hermann Finckh Maschinenfabrik GmbH and Co

1982-05-04 Priority to EP82103801A priority Critical patent/EP0093187B2/fr

1982-05-04 Priority to AT82103801T priority patent/ATE14763T1/de

1982-05-04 Priority to DE8282103801T priority patent/DE3265205D1/de

1983-04-26 Priority to CA000426764A priority patent/CA1205044A/fr

1983-04-26 Priority to US06/488,672 priority patent/US4529519A/en

1983-05-02 Priority to JP58076320A priority patent/JPS58202007A/ja

1983-05-03 Priority to FI831508A priority patent/FI74058B/fi

1983-11-09 Publication of EP0093187A1 publication Critical patent/EP0093187A1/fr

1985-08-07 Publication of EP0093187B1 publication Critical patent/EP0093187B1/fr

1985-08-07 Application granted granted Critical

1990-02-28 Publication of EP0093187B2 publication Critical patent/EP0093187B2/fr

2002-05-04 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Images

Classifications

- 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
- D21D5/02—Straining or screening the pulp
- D21D5/16—Cylinders and plates for screens

Definitions

the invention relates to a screen basket for sorters for sorting fiber suspensions, with an inflow and an outlet side and with sieve openings widening in the forward direction, which are slot-shaped on the inflow side.
Sieve baskets of the type in question can be cylindrical or conical and can also be provided with a base and / or a lid.
a screen basket of the type mentioned / with slots running in the axial or circumferential direction is known, for example, from US Pat. No. 3,581,903 by the applicant.
Sieve baskets of this type are produced from a sheet metal which is bent and closed to form a circular cylinder and into which the sieve openings have been incorporated in the flat state.
the measure to design the sieve openings in such a way that they widen in the forward direction is used because it has been shown that in connection with the cleaning blades or strips of the rotors of the sorters having such a sieve basket there is a risk of blockages which almost completely avoids sieve openings.
the recesses milled out of the screen basket wall for each individual screen opening weaken the screen basket in such a way that reinforcement rings are required in practice, which are attached at an axial distance from one another on the outside of the screen basket wall so that it can withstand the pressure difference mentioned when used in pressure sorters.
the known screen baskets of pressure sorters are not only more expensive, but the reinforcement rings cover a considerable part of the screen basket area, which is why the known screen baskets have to be relatively large.
the transverse spacing of the sieve opening slots from one another must be chosen to be relatively large, so that the webs remaining between the sieve openings still give the sieve basket wall a reasonably sufficient rigidity, a fact which predetermines the maximum throughput of fiber suspension through a known sieve basket of the type in question Dimensions reduced.
the screen plates processed in the manner described cannot be bent into an absolutely round screen basket, because the ring zones not provided with milled recesses and sawn slots for attaching the reinforcement rings do not have the same deformation properties as the areas with screen openings located in between.
the invention had for its object to provide a screen basket for sorters for sorting fiber suspensions and in particular for pressure sorters, which has widening in the forward direction and slot-shaped screen openings on the upstream side and whose wall has a greater strength for a given wall thickness even without reinforcement rings or the like than the known strainer baskets of the type described.
This object can be achieved according to the invention in that the screen basket wall is provided with recesses on the outlet side, each of which extends over a plurality of screen opening slots and which are arranged on all sides at such intervals that the screen basket wall has a network structure on the outlet side between the recesses.
the depressions in question can be produced particularly easily, for example by milling, if they are circular-cylindrical.
the sheet or other material for the screen basket wall is processed in the stretched, ie flat state, before the screen basket is formed from it.
the design according to the invention leads to sieve opening slits of different lengths, which is advantageous, among other things, because in this way a sieve basket is obtained, the stability of which is that of a one with drilled holes provided sieve basket comes close.
the screen basket wall can also be bent into an absolutely round screen basket without great difficulty if the depressions form a regular pattern and are, in particular, circular-cylindrical, because then there are no preferred directions of the screen basket wall with regard to the bending rigidity.
a sieve basket with a predetermined maximum throughput can be reduced in such a way that the drive energy for the rotor can be reduced by up to 20%, and further energy savings are made possible by eliminating the recesses which have not been milled out Areas of the wall of the known screen baskets the total screen area can be reduced by up to about 23%.
FIGS 1 to 3 show a screen basket 10 for a pressure sorter, in which the fiber suspension to be sorted, the screen basket from the outside in, i.e. Flow in the direction of arrow A in Figure 1.
the screen basket wall 12 has an upper and a lower ring area 14 and 16 without screen openings for mounting the screen basket in the pressure sorter.
the outside of the screen basket wall is provided with circumferential grooves 18 arranged at equal intervals from one another, while circular cylindrical recesses 20 have been milled out of the inside of the screen basket wall, the depth of which is so great that sieve opening slots 22 result in the overlap region of the circumferential grooves 18 and the recesses 20 .
the centers of the depressions 20, which have been designated “C” in FIG. 2 lie at the corners of an equilateral triangle, which was indicated by dash-dot lines in FIG. 2 for three mutually adjacent depressions.
the non-perforated areas 24 of the screen basket wall 12 form a network structure between the depressions 20, which gives the screen basket wall 12 the required rigidity.
the depth of the recesses 20 and depth “e” of the grooves 18 should be large enough that the value (D - d) is approximately 0.8 to 1.2 mm, while "e” is approximately 0.9 to 1.3 mm.
FIG. 4 shows a sieve basket 10 'which also flows through from the outside inwards, with grooves 18' running in the axial direction, so that sieve opening slots 22 'also running in the axial direction. surrender.
the strainer basket 10 "shown in FIG. 5 as a third embodiment is intended for through-flow from the inside to the outside, ie in the direction of the arrow B and has circumferential grooves 18" on the inside, while circular cylindrical depressions 20 "lie on the outside of the strainer basket.
the screen opening slots also run here in the circumferential direction and were designated 22 ".
grooves 18, 18 'and 18 do not necessarily have to run in the circumferential direction or in the direction of the axis of the screen basket; it would, for example, be readily possible for the grooves 18' to form an acute angle with the vertical .
Such a strainer basket according to the invention is characterized by an even greater stability, since the weakening of the strainer basket wall due to the grooves 18 or 18 'or 18' 'present outside the depressions is eliminated.
the invention thus created a screen basket in which the sum of the clear openings of the screen basket wall and their stability are greater than in the known screen baskets with slot-like screen openings widening in the direction of passage (given values for the screen basket height and the screen basket diameter), which under Another reason is that the screen basket is perforated everywhere outside of its assembly areas.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Paper (AREA)
Filtering Materials (AREA)
Filtration Of Liquid (AREA)
Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Preliminary Treatment Of Fibers (AREA)
Chemical Or Physical Treatment Of Fibers (AREA)

EP82103801A 1982-05-04 1982-05-04 Tambour de tamisage pour les appareils d'épuration des pâtes à papier Expired - Lifetime EP0093187B2 (fr)

Priority Applications (7)

Application Number	Priority Date	Filing Date	Title
EP82103801A EP0093187B2 (fr)	1982-05-04	1982-05-04	Tambour de tamisage pour les appareils d'épuration des pâtes à papier
AT82103801T ATE14763T1 (de)	1982-05-04	1982-05-04	Siebkorb fuer sortierer zum sortieren von fasersuspensionen.
DE8282103801T DE3265205D1 (en)	1982-05-04	1982-05-04	Screen drum for a pulp stock screening apparatus
US06/488,672 US4529519A (en)	1982-05-04	1983-04-26	Screen cage for separators for sorting fibre suspensions
CA000426764A CA1205044A (fr)	1982-05-04	1983-04-26	Tamis separateur pour suspensions de fibres
JP58076320A JPS58202007A (ja)	1982-05-04	1983-05-02	繊維懸濁液分離用分離機のスクリ−ンケ−ジ
FI831508A FI74058B (fi)	1982-05-04	1983-05-03	Silkorg foer sorteringsanordning foer fibersuspensioner.

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
EP82103801A EP0093187B2 (fr)	1982-05-04	1982-05-04	Tambour de tamisage pour les appareils d'épuration des pâtes à papier

Publications (3)

Publication Number	Publication Date
EP0093187A1 true EP0093187A1 (fr)	1983-11-09
EP0093187B1 EP0093187B1 (fr)	1985-08-07
EP0093187B2 EP0093187B2 (fr)	1990-02-28

Family

ID=8189017

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP82103801A Expired - Lifetime EP0093187B2 (fr)	1982-05-04	1982-05-04	Tambour de tamisage pour les appareils d'épuration des pâtes à papier

Country Status (7)

Country	Link
US (1)	US4529519A (fr)
EP (1)	EP0093187B2 (fr)
JP (1)	JPS58202007A (fr)
AT (1)	ATE14763T1 (fr)
CA (1)	CA1205044A (fr)
DE (1)	DE3265205D1 (fr)
FI (1)	FI74058B (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0236843A2 (fr) *	1986-03-07	1987-09-16	J.M. Voith GmbH	Tamis de triage
EP0287267A2 (fr) *	1987-04-16	1988-10-19	The Black Clawson Company	Platines cylindriques pour épurateurs
US4901417A (en) *	1987-08-05	1990-02-20	The Black Clawson Company	Method of finishing screen plates
US5259512A (en) *	1989-12-06	1993-11-09	Hermann Finckh Maschinenfabrik Gmbh & Co.	Screen for pressure sorters for fiber suspensions
WO2003091497A1 (fr) *	2002-04-24	2003-11-06	Frejborg Frey A	Partie de tamis, cylindre de tamis, dispositif de tamisage et procede de tamisage pour materiau fibreux

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS6443318A (en) *	1987-08-10	1989-02-15	Arai Tekkosho Kk	Multipurpose cylindrical element for filtration or separation
US5513757A (en) *	1994-06-02	1996-05-07	Sulzer Papertec Mansfield Inc.	Continuous cut slotted screen basket
SE505400C2 (sv) *	1995-11-08	1997-08-18	Capricell Ab	Barriär för avvattning av fibersuspensioner
CN200954409Y (zh) *	2006-06-27	2007-10-03	香港理工大学	通过减少阻塞而具有更优性能的过滤器
DE102018007294A1 (de) *	2018-09-14	2020-03-19	Guntram Krettek	Verfahren zum Fixieren eines Bleches und damit hergestellte Filtereinrichtung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB579562A (en) *	1940-12-26	1946-08-08	Cfcmug	Improvements in filters
GB879759A (en) *	1959-05-05	1961-10-11	Ingersoll Rand Canada	Outward flow pressure screen
DE1611145A1 (de) *	1967-12-11	1970-09-03	Roland Soelch	Verfahren zur Herstellung von Spaltfilterkoerpern fuer Feinstfiltration

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE545967C (de) *		1932-03-08	Constantin Noetzel	Laeuterboden
NL48947C (fr) *
US874418A (en) *	1907-02-21	1907-12-24	Joseph H Mcevoy	Straining-plug.
US1375222A (en) *	1918-01-16	1921-04-19	William F J Lutz	Drain-fitting
FR30891E (fr) *	1925-08-19	1926-10-04		Perfectionnements aux filtres à liquide
US1743953A (en) *	1929-03-12	1930-01-14	John D Beatty	Paper-screen-cleaning device
US1780882A (en) *	1929-07-18	1930-11-04	Martin F Kettler	Well screen
FR845346A (fr) *	1938-08-10	1939-08-18	Delbag Deutsche Luftfilter Bau	Filtre fin à humectation visqueuse
GB681379A (en) *	1949-12-08	1952-10-22	John Wardle	Improvements in or relating to strainers for liquids
GB841207A (en) *	1956-01-18	1960-07-13	Muller Jacques	Improvements in filters or sifting elements
US2998064A (en) *	1957-12-11	1961-08-29	Improved Machinery Inc	Strainer construction
US3250063A (en) *	1963-10-31	1966-05-10	M S A Res Corp	Filter and clips for holding same in a frame
DE1905832U (de) *	1964-09-16	1964-12-03	Hermann Finckh G M B H	Sichter fuer papierstoff-suspensionen.
US3390774A (en) *	1967-08-28	1968-07-02	Chevron Res	Spin-on type filter with dual valve and dual filter media
US4262744A (en) *	1979-04-19	1981-04-21	Certain-Teed Corporation	Molded fittings and methods of manufacture
DE3065148D1 (en) *	1979-06-22	1983-11-10	Nat Res Dev	Zinc/cadmium chloride electrolysis
JPS5637393A (en) *	1979-08-30	1981-04-11	Mitsubishi Heavy Ind Ltd	Screen apparatus for paper stock
DE3113734A1 (de) *	1980-04-22	1982-02-04	British Sidac Ltd., Watford, Hertfordshire	"rueckspuelbare filteriervorrichtung"
JPS574208A (en) *	1980-06-10	1982-01-09	Totoku Electric Co Ltd	Filter
US4276159A (en) *	1980-06-19	1981-06-30	The Black Clawson Company	Apparatus for screening paper fiber stock
SU921593A1 (ru) *	1980-09-15	1982-04-23	Государственный проектно-конструкторский и экспериментальный институт угольного машиностроения	Фильтр
US4415613A (en) *	1981-08-24	1983-11-15	Jonas Medney	Method for making strengthened porous pipe and resulting product

1982
- 1982-05-04 EP EP82103801A patent/EP0093187B2/fr not_active Expired - Lifetime
- 1982-05-04 DE DE8282103801T patent/DE3265205D1/de not_active Expired
- 1982-05-04 AT AT82103801T patent/ATE14763T1/de not_active IP Right Cessation
1983
- 1983-04-26 US US06/488,672 patent/US4529519A/en not_active Expired - Fee Related
- 1983-04-26 CA CA000426764A patent/CA1205044A/fr not_active Expired
- 1983-05-02 JP JP58076320A patent/JPS58202007A/ja active Granted
- 1983-05-03 FI FI831508A patent/FI74058B/fi not_active Application Discontinuation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB579562A (en) *	1940-12-26	1946-08-08	Cfcmug	Improvements in filters
GB879759A (en) *	1959-05-05	1961-10-11	Ingersoll Rand Canada	Outward flow pressure screen
DE1611145A1 (de) *	1967-12-11	1970-09-03	Roland Soelch	Verfahren zur Herstellung von Spaltfilterkoerpern fuer Feinstfiltration

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0236843A2 (fr) *	1986-03-07	1987-09-16	J.M. Voith GmbH	Tamis de triage
EP0236843A3 (fr) *	1986-03-07	1987-11-04	J.M. Voith GmbH	Tamis de triage
EP0287267A2 (fr) *	1987-04-16	1988-10-19	The Black Clawson Company	Platines cylindriques pour épurateurs
EP0287267A3 (en) *	1987-04-16	1989-07-05	The Black Clawson Company	Screen plates
EP0455312A2 (fr) *	1987-04-16	1991-11-06	The Black Clawson Company	Platines pour épurateurs
EP0455312A3 (en) *	1987-04-16	1992-06-10	The Black Clawson Company	Screen plates
US4901417A (en) *	1987-08-05	1990-02-20	The Black Clawson Company	Method of finishing screen plates
US5259512A (en) *	1989-12-06	1993-11-09	Hermann Finckh Maschinenfabrik Gmbh & Co.	Screen for pressure sorters for fiber suspensions
WO2003091497A1 (fr) *	2002-04-24	2003-11-06	Frejborg Frey A	Partie de tamis, cylindre de tamis, dispositif de tamisage et procede de tamisage pour materiau fibreux

Also Published As

Publication number	Publication date
FI831508L (fi)	1983-11-05
JPS58202007A (ja)	1983-11-25
ATE14763T1 (de)	1985-08-15
JPH0246716B2 (fr)	1990-10-17
EP0093187B2 (fr)	1990-02-28
CA1205044A (fr)	1986-05-27
FI831508A0 (fi)	1983-05-03
DE3265205D1 (en)	1985-09-12
EP0093187B1 (fr)	1985-08-07
FI74058B (fi)	1987-08-31
US4529519A (en)	1985-07-16

Publication	Publication Date	Title
EP0287836B1 (fr)	1990-11-14	Tissu à deux couches pour machine à papier
DE69608109T2 (de)	2001-01-11	Sieb und verfahren zur herstellung
EP0264001A1 (fr)	1988-04-20	Toile à deux couches pour machine à papier comprenant un côté machine à structure grosse et un côté papier à structure fine
DE3400423A1 (de)	1984-07-26	Siebplatte
EP0456788B1 (fr)	1993-11-03	Tamis pour trieuse sous pression pour suspensions fibreuses
EP0093187B1 (fr)	1985-08-07	Tambour de tamisage pour les appareils d'épuration des pâtes à papier
DE3607457A1 (de)	1987-09-10	Sortiersieb
EP0146641B1 (fr)	1988-06-01	Tamis à trier pour suspensions de fibres de pâte
DE2902432A1 (de)	1979-08-09	Eindickfilter
EP0567726B1 (fr)	1995-06-21	Dispositif de tamisage
WO2012084562A1 (fr)	2012-06-28	Trieuse à pression
DE2634934C3 (de)	1979-06-28	Plattenartiges Siebelement
CA1336279C (fr)	1995-07-11	Moustiquaire et methode de fabrication connexe
DE69003953T2 (de)	1994-04-07	Siebblech zum sieben von pulpe.
DE3632932C2 (fr)	1988-07-07
DE3790016C2 (fr)	1990-09-13
EP0050836B1 (fr)	1985-08-28	Assemblage combustible de réacteur nucléaire
DE3015370C2 (de)	1983-06-30	Siebkorb für Sortierer der Papierindustrie
DE69835457T2 (de)	2007-02-15	Refinerplatten für die papierherstellung und herstellungsverfahren
DE102006014234A1 (de)	2007-04-26	Siebvorrichtung zur Nasssiebung von Papierfasersuspensionen
DE202018102161U1 (de)	2019-07-21	Stützkörper für Filterelemente und Filterelement hierfür
AT400853B (de)	1996-04-25	Sieb für papierzellstoff-splitterfänger und klassierer
DE102011080953A1 (de)	2013-02-21	Sieb
DE2817407C3 (de)	1983-02-03	Filznadel
DE29700595U1 (de)	1997-02-27	Siebelement zum Sortieren, Fraktionieren oder Eindicken einer Faserstoffsuspension

Legal Events

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1983-09-10	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
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