EP0437232B1 - Nasskreislauf einer papier macherpresse mit Zentrifugalentwässerung des Pressfilzes - Google Patents
Nasskreislauf einer papier macherpresse mit Zentrifugalentwässerung des Pressfilzes Download PDFInfo
- Publication number
- EP0437232B1 EP0437232B1 EP91100167A EP91100167A EP0437232B1 EP 0437232 B1 EP0437232 B1 EP 0437232B1 EP 91100167 A EP91100167 A EP 91100167A EP 91100167 A EP91100167 A EP 91100167A EP 0437232 B1 EP0437232 B1 EP 0437232B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- felt
- wet
- press
- water
- centrifugal device
- 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
Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F7/00—Other details of machines for making continuous webs of paper
- D21F7/08—Felts
- D21F7/12—Drying
Definitions
- the present invention relates to a wet circuit of a stationery press comprising a wet felt and a centrifuge device imparting to the wet felt a trajectory of strong curvature causing the rejection of water by centrifugation, said wet felt comprising a canvas provided with a upper thick water-absorbent sheet.
- the centrifuge device requires no external energy.
- the wet circuit according to the invention with centrifuge device making the use of a suction system unnecessary is characterized in that the lower sheet of the wet felt in contact with the centrifuge device is impermeable.
- An impermeable lower layer consists of an impermeable layer or a permeable layer coated with an impermeable sheet. .
- the presence of an impermeable sheet in contact with the centrifuge device promotes sliding on this device and reduces abrasion.
- water can be sent to the impermeable layer upstream of the centrifuge device, which promotes the sliding of the felt on the device without increasing the amount of water in the felt.
- FIG. 1 and 2 shows a wet circuit according to the invention.
- FIG. 3 represents a centrifuge device for a wet circuit according to the invention.
- FIGS 4 to 6 show wet felts according to the invention.
- the stationery press wet circuit according to the invention is shown in figure 1.
- the wet felt 1 rotates in a closed circuit and passes between two press cylinders 2 while supporting the sheet 3.
- This felt 1 is to extract part of the water transported by the sheet 3.
- This cylinder must be at most 6 inches in diameter (15 cm), preferably the diameter will be close to 2 inches (5 cm) so that the centrifugal force is sufficient to eject the water.
- the wet felt 1 comprises a canvas 7, a thick upper sheet 8 intended to be in contact with the sheet and a lower sheet 9.
- This lower sheet 9 consists of an impermeable layer which can for example be fixed to the canvas 7 by gluing ( Figure 4) or by induction ( Figure 5) or consisting of a permeable layer 10 on which is bonded an impermeable sheet 11 ( Figure 6).
- the press cylinders 2 no longer need to be grooved or suction since the underside of the felt 3 being impermeable, it forms a barrier blocking the movement of water towards these cylinders 2. It is therefore possible to use full cylinders 2 .
- the centrifugation force depends on the square of the speed of the felt and is inversely proportional to the radius of the centrifuge cylinder 5 which is the radius of curvature of the trajectory of the felt.
Landscapes
- Paper (AREA)
- Photoreceptors In Electrophotography (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Sampling And Sample Adjustment (AREA)
- Making Paper Articles (AREA)
- Drying Of Gases (AREA)
Claims (5)
- Naßkreislauf für eine Papiermacherpresse, die Preßzylinder (2), einen nassen Filz (1), der eine Papierbahn (3) trägt und zwischen die Preßzylinder (2) läuft, und eine Zentrifugiereinrichtung (4) aufweist, die dem nassen Filz (1) eine Bewegungsbahn starker Krümmung verleiht, durch die Wasser mittels Zentrifugieren herausgeschleudert wird, wobei der nasse Filz (1) ein Netz (7) aufweist, das mit einer dicken oberen wasserabsorbierenden Lage (8) in Berührung mit der Papierbahn (3) steht, dadurch gekennzeichnet, daß die untere Lage (9) des mit der Zentrifugiereinrichtung (4) in Berührung stehenden nassen Filzes (1) undurchlässig ist.
- Naßkreislauf nach Anspruch 1, dadurch gekennzeichnet, daß er Mittel (12) zum Zuführen von Wasser vor der Zentrifugiereinrichtung (4) auf die untere Lage (9) des Filzes (1) aufweist.
- Naßkreislauf nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Richtungsänderung der Bewegungsbahn des Filzes (1) um die Zentrifugiereinrichtung (4) mindestens 270° beträgt.
- Naßkreislauf nach Anspruch 3, dadurch gekennzeichnet, daß die Richtungsänderung des Filzes (1) um die Zentrifugiereinrichtung (4) etwa 300° beträgt.
- Naßkreislauf nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Preßzylinder (2) vollflächig ausgebildet sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9000162 | 1990-01-09 | ||
FR9000162A FR2656881A1 (fr) | 1990-01-09 | 1990-01-09 | Procede de deshydratation d'un feutre humide de papeterie et feutre humide pour l'application de ce procede. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0437232A1 EP0437232A1 (de) | 1991-07-17 |
EP0437232B1 true EP0437232B1 (de) | 1994-06-22 |
Family
ID=9392597
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP91100167A Expired - Lifetime EP0437232B1 (de) | 1990-01-09 | 1991-01-07 | Nasskreislauf einer papier macherpresse mit Zentrifugalentwässerung des Pressfilzes |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0437232B1 (de) |
AT (1) | ATE107718T1 (de) |
DE (1) | DE69102545T2 (de) |
DK (1) | DK0437232T3 (de) |
ES (1) | ES2057605T3 (de) |
FI (1) | FI910089A (de) |
FR (1) | FR2656881A1 (de) |
NO (1) | NO176407C (de) |
ZA (1) | ZA91180B (de) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3298904A (en) * | 1964-08-10 | 1967-01-17 | Kimberly Clark Co | Belt cleaning apparatus for a papermaking machine |
FR1411500A (fr) * | 1964-10-14 | 1965-09-17 | Rice Barton Corp | Procédé et dispositif pour purger des bandes de feutre mobiles, notamment celles utilisées dans les machines à papier |
-
1990
- 1990-01-09 FR FR9000162A patent/FR2656881A1/fr active Pending
-
1991
- 1991-01-07 EP EP91100167A patent/EP0437232B1/de not_active Expired - Lifetime
- 1991-01-07 FI FI910089A patent/FI910089A/fi not_active Application Discontinuation
- 1991-01-07 AT AT91100167T patent/ATE107718T1/de not_active IP Right Cessation
- 1991-01-07 NO NO910050A patent/NO176407C/no unknown
- 1991-01-07 DE DE69102545T patent/DE69102545T2/de not_active Expired - Fee Related
- 1991-01-07 DK DK91100167.5T patent/DK0437232T3/da active
- 1991-01-07 ES ES91100167T patent/ES2057605T3/es not_active Expired - Lifetime
- 1991-01-09 ZA ZA91180A patent/ZA91180B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
NO176407C (no) | 1995-03-29 |
DE69102545T2 (de) | 1994-10-06 |
EP0437232A1 (de) | 1991-07-17 |
NO176407B (no) | 1994-12-19 |
ES2057605T3 (es) | 1994-10-16 |
ZA91180B (en) | 1991-10-30 |
FI910089A (fi) | 1991-07-10 |
ATE107718T1 (de) | 1994-07-15 |
DE69102545D1 (de) | 1994-07-28 |
NO910050L (no) | 1991-07-10 |
FI910089A0 (fi) | 1991-01-07 |
DK0437232T3 (da) | 1994-09-19 |
NO910050D0 (no) | 1991-01-07 |
FR2656881A1 (fr) | 1991-07-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP3681914B2 (ja) | 拡張ニッププレスを用いた抄紙機のプレス部 | |
FI80094B (fi) | Banoeverfoeringsfoerfarande. | |
JP3319761B2 (ja) | 紙ウエブもしくは板紙ウエブからプレスにより水を除去する方法および装置 | |
KR960702557A (ko) | 웨브 건조 장치(apparatus for drying a web) | |
FI931263A0 (fi) | Torkningsfoerfarande och torkningsmodul samt torkningspartier daer dessatillaempas, speciellt foer en snabbt gaoende pappersmaskin | |
FR2434773A1 (fr) | Structure de guidage de feuille continue sans contact permettant un changement de direction, a fentes de passage d'air disposees longitudinalement aux bords de la feuille | |
US5868904A (en) | Press section employing an extended nip press with suction counter roll | |
JPH06158578A (ja) | ティッシュペーパーを作るための抄紙機 | |
FI110440B (fi) | Rainan siirto paperikoneen kaksihuopaisesta viimeisestä puristinnipistä seuraavalle kuivatusosalle | |
JPH0742680B2 (ja) | ウェブを乾燥する装置及び方法 | |
FI93237C (fi) | Menetelmä ja laite paperi- tai kartonkikoneessa veden poistamiseksi rainasta | |
JPH0616879B2 (ja) | 被覆装置及び方法 | |
CA1176889A (en) | Press section and method of pressing in a paper machine | |
EP0437232B1 (de) | Nasskreislauf einer papier macherpresse mit Zentrifugalentwässerung des Pressfilzes | |
SE8703507L (sv) | Slutet och kompakt pressparti i pappersmaskin | |
JP2926557B2 (ja) | 製紙機械の紙通し用ドライヤ部及び紙通し方法 | |
US6368466B1 (en) | Press section of a paper making machine employing an extended nip press | |
US5935386A (en) | Suction roll box | |
US6346171B1 (en) | Paper making machine using separate metal screens for press and dryer cylinders | |
CA2130224A1 (en) | Apparatus for a paper/board machine and use of the same | |
CA2190402A1 (en) | Press section for a paper machine and method for draining moisture from a paper web | |
GB1567646A (en) | Double-wire paper machines | |
KR100191140B1 (ko) | 다층 웹 형성 장치 및 다층 웹의 형성 방법 | |
FR2733522A1 (fr) | Procede et dispositif de fabrication d'une feuille de papier avec presechage par air traversant | |
McDonald et al. | A new web transfer system for closing the draw between the last press and the dryer section |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
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 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IT LI NL SE |
|
17P | Request for examination filed |
Effective date: 19920113 |
|
17Q | First examination report despatched |
Effective date: 19930928 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE DK ES FR GB GR IT LI NL SE |
|
REF | Corresponds to: |
Ref document number: 107718 Country of ref document: AT Date of ref document: 19940715 Kind code of ref document: T |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19940627 |
|
REF | Corresponds to: |
Ref document number: 69102545 Country of ref document: DE Date of ref document: 19940728 |
|
ITF | It: translation for a ep patent filed |
Owner name: JACOBACCI CASETTA & PERANI S.P.A. |
|
REG | Reference to a national code |
Ref country code: DK Ref legal event code: T3 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2057605 Country of ref document: ES Kind code of ref document: T3 |
|
REG | Reference to a national code |
Ref country code: GR Ref legal event code: FG4A Free format text: 3013301 |
|
EAL | Se: european patent in force in sweden |
Ref document number: 91100167.5 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19951228 Year of fee payment: 6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 19951229 Year of fee payment: 6 Ref country code: AT Payment date: 19951229 Year of fee payment: 6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19960102 Year of fee payment: 6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DK Payment date: 19960108 Year of fee payment: 6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GR Payment date: 19960111 Year of fee payment: 6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 19960125 Year of fee payment: 6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 19960129 Year of fee payment: 6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 19960131 Year of fee payment: 6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 19960205 Year of fee payment: 6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19960212 Year of fee payment: 6 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Effective date: 19970107 Ref country code: DK Effective date: 19970107 Ref country code: AT Effective date: 19970107 |
|
REG | Reference to a national code |
Ref country code: DK Ref legal event code: EBP |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Effective date: 19970108 Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19970108 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Effective date: 19970131 Ref country code: CH Effective date: 19970131 Ref country code: BE Effective date: 19970131 |
|
BERE | Be: lapsed |
Owner name: CIE DES FEUTRES POUR PAPETERIES ET DES TISSUSINDUS Effective date: 19970131 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 19970731 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Effective date: 19970801 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 19970107 |
|
REG | Reference to a national code |
Ref country code: GR Ref legal event code: MM2A Free format text: 3013301 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Effective date: 19970930 |
|
NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee |
Effective date: 19970801 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Effective date: 19971001 |
|
EUG | Se: european patent has lapsed |
Ref document number: 91100167.5 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 19990405 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20050107 |