ATE258249T1 - DEVICE AND METHOD FOR GENERATING SUBSTANCE TURBULENCE IN THE SHEET FORMER OF A WEB PAPER MACHINE - Google Patents
DEVICE AND METHOD FOR GENERATING SUBSTANCE TURBULENCE IN THE SHEET FORMER OF A WEB PAPER MACHINEInfo
- Publication number
- ATE258249T1 ATE258249T1 AT99926201T AT99926201T ATE258249T1 AT E258249 T1 ATE258249 T1 AT E258249T1 AT 99926201 T AT99926201 T AT 99926201T AT 99926201 T AT99926201 T AT 99926201T AT E258249 T1 ATE258249 T1 AT E258249T1
- Authority
- AT
- Austria
- Prior art keywords
- stock
- turbulence
- elements
- deflocculate
- lead
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/48—Suction apparatus
- D21F1/483—Drainage foils and bars
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/18—Shaking apparatus for wire-cloths and associated parts
- D21F1/20—Shaking apparatus for wire-cloths and associated parts in Fourdrinier machines
Landscapes
- Paper (AREA)
- Making Paper Articles (AREA)
- Treatment Of Fiber Materials (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Looms (AREA)
Abstract
A method and apparatus for generating turbulence in stock to deflocculate the stock in an open surface forming section of a paper making machine comprises a dewatering box (2) providing vacuum assisted drainage and which has a set of dewatering elements that impart turbulence into relatively thick stock layers carried at machine operating speeds of equal up to about 400 m/min, for the production of paper products having a basis weight generally in excess of about 160 gsm. Each set of elements includes a lead-in element (5), at least one intermediate element (6, 7), and a trailing element (8). The path of the forming fabric (13) is deflected downwardly as it passes over the intermediate elements, which are inclined at an angle of from about 0 DEG to about 10 DEG from a plane defined by forming fabric supporting surfaces on the lead-in and riser elements. This vertical movement initiates turbulence and agitation in the stock, which acts both to deflocculate the stock and to diminish the possibility of sheet sealing. The apparatus is useable in combination with other known formation and drainage devices which are located either upstream or downstream to augment their performance with thicker, slower moving stock layers.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US9935698A | 1998-06-18 | 1998-06-18 | |
US09/290,898 US6126786A (en) | 1998-06-18 | 1999-04-14 | Apparatus and method of generating stock turbulence in a fourdrinier forming section |
PCT/CA1999/000573 WO1999066121A1 (en) | 1998-06-18 | 1999-06-17 | Apparatus and method of generating stock turbulence in a fourdrinier forming section |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE258249T1 true ATE258249T1 (en) | 2004-02-15 |
Family
ID=26796017
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT99926201T ATE258249T1 (en) | 1998-06-18 | 1999-06-17 | DEVICE AND METHOD FOR GENERATING SUBSTANCE TURBULENCE IN THE SHEET FORMER OF A WEB PAPER MACHINE |
Country Status (12)
Country | Link |
---|---|
EP (1) | EP1005588B1 (en) |
AT (1) | ATE258249T1 (en) |
AU (1) | AU745683B2 (en) |
BR (1) | BR9906541B1 (en) |
CA (1) | CA2300280C (en) |
DE (1) | DE69914295T2 (en) |
ES (1) | ES2212563T3 (en) |
NO (1) | NO315570B1 (en) |
NZ (1) | NZ502363A (en) |
PT (1) | PT1005588E (en) |
RU (1) | RU2224062C2 (en) |
WO (1) | WO1999066121A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MXPA03003453A (en) | 2000-10-16 | 2005-06-22 | Essen Roy Van | Adjustable activity drainage box. |
DE10107328A1 (en) | 2001-02-16 | 2002-08-29 | Voith Paper Patent Gmbh | Method and device for removing white water |
DE10162133A1 (en) * | 2001-12-18 | 2003-07-03 | Voith Paper Patent Gmbh | Machine for making a fiber material width comprises a sheet formation zone passed over a vacuum box of zonal effective low pressure in the machine direction which can be increased without falling to zero |
US8236139B1 (en) | 2008-06-30 | 2012-08-07 | International Paper Company | Apparatus for improving basis weight uniformity with deckle wave control |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3922190A (en) * | 1972-05-01 | 1975-11-25 | Inotech Process Ltd | Vacuum drainage device having a plurality of stepped blades |
US4687549A (en) * | 1986-01-08 | 1987-08-18 | M/K Systems, Inc. | Hydrofoil blade |
-
1999
- 1999-06-17 AT AT99926201T patent/ATE258249T1/en active
- 1999-06-17 NZ NZ502363A patent/NZ502363A/en unknown
- 1999-06-17 ES ES99926201T patent/ES2212563T3/en not_active Expired - Lifetime
- 1999-06-17 DE DE69914295T patent/DE69914295T2/en not_active Expired - Lifetime
- 1999-06-17 AU AU43548/99A patent/AU745683B2/en not_active Ceased
- 1999-06-17 PT PT99926201T patent/PT1005588E/en unknown
- 1999-06-17 WO PCT/CA1999/000573 patent/WO1999066121A1/en active IP Right Grant
- 1999-06-17 BR BRPI9906541-0A patent/BR9906541B1/en not_active IP Right Cessation
- 1999-06-17 EP EP99926201A patent/EP1005588B1/en not_active Expired - Lifetime
- 1999-06-17 RU RU2000107112/12A patent/RU2224062C2/en not_active IP Right Cessation
- 1999-06-17 CA CA002300280A patent/CA2300280C/en not_active Expired - Fee Related
-
2000
- 2000-02-17 NO NO20000778A patent/NO315570B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
BR9906541B1 (en) | 2009-01-13 |
RU2224062C2 (en) | 2004-02-20 |
EP1005588B1 (en) | 2004-01-21 |
NO20000778D0 (en) | 2000-02-17 |
BR9906541A (en) | 2000-10-17 |
DE69914295T2 (en) | 2004-07-01 |
DE69914295D1 (en) | 2004-02-26 |
NO315570B1 (en) | 2003-09-22 |
PT1005588E (en) | 2004-05-31 |
AU745683B2 (en) | 2002-03-28 |
CA2300280C (en) | 2007-09-11 |
EP1005588A1 (en) | 2000-06-07 |
CA2300280A1 (en) | 1999-12-23 |
NZ502363A (en) | 2001-07-27 |
NO20000778L (en) | 2000-04-14 |
WO1999066121A1 (en) | 1999-12-23 |
ES2212563T3 (en) | 2004-07-16 |
AU4354899A (en) | 2000-01-05 |
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Legal Events
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UEP | Publication of translation of european patent specification |
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