GB949769A - Method of and apparatus for dewatering wet webs of papermaking fibres - Google Patents
Method of and apparatus for dewatering wet webs of papermaking fibresInfo
- Publication number
- GB949769A GB949769A GB48777/62A GB4877762A GB949769A GB 949769 A GB949769 A GB 949769A GB 48777/62 A GB48777/62 A GB 48777/62A GB 4877762 A GB4877762 A GB 4877762A GB 949769 A GB949769 A GB 949769A
- Authority
- GB
- United Kingdom
- Prior art keywords
- web
- water
- roll
- around
- belt
- 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
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 7
- 210000000481 breast Anatomy 0.000 abstract 5
- 230000004048 modification Effects 0.000 abstract 2
- 238000012986 modification Methods 0.000 abstract 2
- 239000004677 Nylon Substances 0.000 abstract 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- 229920001778 nylon Polymers 0.000 abstract 1
- 229920000728 polyester Polymers 0.000 abstract 1
- 230000009103 reabsorption Effects 0.000 abstract 1
- 229920002994 synthetic fiber Polymers 0.000 abstract 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 abstract 1
- 229920002554 vinyl polymer Polymers 0.000 abstract 1
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
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F9/00—Complete machines for making continuous webs of paper
- D21F9/003—Complete machines for making continuous webs of paper of the twin-wire type
Landscapes
- Paper (AREA)
Abstract
949,769. Dewatering wet webs of paper-making fibres. HUYCK CORPORATION. Dec.28, 1962 [Jan. 4,1962], No. 48777/62. Heading D2A. A wet web 29 of paper. fibres is deposited on a straight upper run 27 of a first, foraminous, synthetic fibre, moving carrier belt 23 and the upper surface of the web is then brought into contact with a second similar belt 33 and the three ply assembly so formed is caused to travel around sharply curved paths 37, 43 defined by parts of the surfaces of rotating guide rolls 35, 39, water being ejected from the assembly in passing around the rolls. Ejection of the water is the combined result of centrifugal forces and of the working of the web which results from the stretching of one (the outer) belt and the web face in contact therewith, and the compressing of the other, inner, belt and web face. The carrier belts which may for example be of nylon, or of acrylic, polyester or vinyl, fibres, allow water to be expressed freely while preventing damage to the surface of the web. Ejection of water may be assisted by causing streams of hot or cold air or other gas or superheated steam to pass through the web in the region of the sharply curved paths and to this end the roll 35 is provided with a perforated outer shell through which air is forced by air supply means 68, shown in greater detail in Fig. 2 (not shown). Since water is ejected on the upper side of the three ply assembly in its passage around roll 39 there is a danger of reabsorption of water in this region and for this reason suction means 71 are preferably provided on the outer side of the web at the roll 39. Doctors 59a and 60 may be provided to assist in the removal of water. In a modification (Fig. 3 not shown), the paper stock is discharged from pressure forming inlet means almost directly into the nip of the two carrier members which are trained, one around a breast roll and the other around a slice roll mounted above the breast roll. To provide adequate initial drainage in this case the breast roll may be of open-vaned construction. In a further modification (Fig. 4 not shown), the pulp is supplied by a vertical conduit to a first carrier belt on a breast roll and is formed and initially dewatered as it travels around a part of the circumference of the breast roll before contacting the second carrier member. Specification 827,754 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US164229A US3150037A (en) | 1962-01-04 | 1962-01-04 | Papermaking machine utilizing centrifugal dewatering |
Publications (1)
Publication Number | Publication Date |
---|---|
GB949769A true GB949769A (en) | 1964-02-19 |
Family
ID=22593541
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB48777/62A Expired GB949769A (en) | 1962-01-04 | 1962-12-28 | Method of and apparatus for dewatering wet webs of papermaking fibres |
Country Status (4)
Country | Link |
---|---|
US (1) | US3150037A (en) |
DE (1) | DE1411902B1 (en) |
GB (1) | GB949769A (en) |
SE (1) | SE308244B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1511189B1 (en) * | 1965-01-18 | 1971-07-29 | Beloit Corp | Dewatering device for a Fourdrinier paper machine |
EP0072188A2 (en) * | 1981-08-07 | 1983-02-16 | Dominion Engineering Works Limited | Web forming machine |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3232825A (en) * | 1963-09-16 | 1966-02-01 | Time Inc | Dual wire type paper-forming apparatus and methods of forming and dewatering paper |
US3844881A (en) * | 1972-06-09 | 1974-10-29 | Rice Barton Corp | Multi-layered fibrous web forming system employing a suction roll positioned adjacent the web side of the forming wire and around which the forming wire is wrapped |
FI761030A (en) * | 1976-04-14 | 1977-10-15 | Valmet Oy | |
US4267017A (en) * | 1980-01-09 | 1981-05-12 | Beloit Corporation | Drainage roof for twin wire roll former |
AT379622B (en) * | 1980-11-26 | 1986-02-10 | Escher Wyss Gmbh | PAPER MACHINE WITH TWO MOVABLE WATERPROOF DRAINAGE BELTS, e.g. SEVEN |
FI813027L (en) * | 1981-09-29 | 1983-03-30 | Ahlstroem Oy | BANFORMNINGSFOERFARANDE OCH -ANORDNING |
FI73763C (en) * | 1982-03-02 | 1987-11-09 | Valmet Oy | BANFORMNINGSPARTI FOER PAPPERSMASKIN, SOM AER AVSETT FOER MODERNISERING AV ETT PLANVIRAPARTI. |
US4790909A (en) * | 1986-12-17 | 1988-12-13 | Beloit Corporation | Two-wire paper forming apparatus |
FI873034A (en) * | 1987-07-09 | 1989-01-10 | Tampella Oy Ab | AVVATTNINGSZON I EN PAPPERSMASKIN. |
US5259952A (en) * | 1992-08-28 | 1993-11-09 | Cer-Wat, Inc. | System for separating solids from a liquid in a divided channel |
US5445746A (en) * | 1992-08-28 | 1995-08-29 | Cer-Wat Corporation | Method for dewatering a porous wet web |
DE4443874C2 (en) * | 1994-12-09 | 1996-10-31 | Voith Sulzer Papiermasch Gmbh | Twin-wire gap former for paper production |
FI115849B (en) * | 2002-08-28 | 2005-07-29 | Metso Paper Inc | Arrangement of wire section of paper or board machine |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE551777A (en) * | ||||
US1387061A (en) * | 1920-08-06 | 1921-08-09 | Milkey Lester Ernest | Paper-making machine |
US1722503A (en) * | 1925-07-06 | 1929-07-30 | William H Millspaugh | Paper-making method and machine |
GB246048A (en) * | 1925-08-10 | 1926-01-21 | Drying Systems Inc | Improvements in paper making processes |
US1875075A (en) * | 1930-01-25 | 1932-08-30 | Masonite Corp | Liquid separation |
US2473269A (en) * | 1944-09-02 | 1949-06-14 | Rice Barton Corp | Papermaking machine |
US2730933A (en) * | 1953-06-04 | 1956-01-17 | William G Reynolds | Method and apparatus for the manufacture of sheet material from solid particles suspended in liquid media |
GB813509A (en) * | 1955-10-14 | 1959-05-21 | St Annes Board Mill Co Ltd | Improved method and apparatus for manufacturing paper, or paper board, or similar fibrous product |
US2903021A (en) * | 1955-12-23 | 1959-09-08 | F C Huyck & Sons | Fourdrinier cloth |
GB841484A (en) * | 1956-07-31 | 1960-07-13 | Dominion Eng Works Ltd | Paper making machines |
US2969114A (en) * | 1958-10-13 | 1961-01-24 | Black Clawson Co | Paper machinery |
US3056719A (en) * | 1959-07-09 | 1962-10-02 | David R Webster | Continuous web forming machine |
US2995186A (en) * | 1960-04-22 | 1961-08-08 | Pulp Paper Res Inst | Apparatus for making formed fibrous webs |
-
1962
- 1962-01-04 US US164229A patent/US3150037A/en not_active Expired - Lifetime
- 1962-12-21 SE SE13859/62A patent/SE308244B/xx unknown
- 1962-12-21 DE DE19621411902 patent/DE1411902B1/en active Pending
- 1962-12-28 GB GB48777/62A patent/GB949769A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1511189B1 (en) * | 1965-01-18 | 1971-07-29 | Beloit Corp | Dewatering device for a Fourdrinier paper machine |
EP0072188A2 (en) * | 1981-08-07 | 1983-02-16 | Dominion Engineering Works Limited | Web forming machine |
EP0072188A3 (en) * | 1981-08-07 | 1984-03-07 | Dominion Engineering Works Limited | Web forming machine |
Also Published As
Publication number | Publication date |
---|---|
US3150037A (en) | 1964-09-22 |
DE1411902B1 (en) | 1969-12-11 |
SE308244B (en) | 1969-02-03 |
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