GB1411772A - Web dryer - Google Patents
Web dryerInfo
- Publication number
- GB1411772A GB1411772A GB5138272A GB5138272A GB1411772A GB 1411772 A GB1411772 A GB 1411772A GB 5138272 A GB5138272 A GB 5138272A GB 5138272 A GB5138272 A GB 5138272A GB 1411772 A GB1411772 A GB 1411772A
- Authority
- GB
- United Kingdom
- Prior art keywords
- web
- felt
- air
- felts
- rollers
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
- F26B13/06—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement with movement in a sinuous or zig-zag path
- F26B13/08—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement with movement in a sinuous or zig-zag path using rollers
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F5/00—Dryer section of machines for making continuous webs of paper
- D21F5/02—Drying on cylinders
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Paper (AREA)
- Drying Of Solid Materials (AREA)
Abstract
1411772 Drying of webs BELOIT CORP 7 Nov 1972 [17 Dec 1971] 51382/72 Heading F4G A paper web W is supported in its sinuous path around heated dryer drums 12-15 and 16-18 etc. by means of one or other of two pervious endless felts 20 and 21, the web W being transferred from one felt to the other at guide rollers 24-28, the arrangement of guide rollers 24-28 being such that air entrained with the web W at A is removed from between the web W and upper felt 20 by sub-atmospheric pressure created at B, so as to prevent flutter of the web W in the run 20a. Similar effects are produced at C and D. Air entrained at 21a with the lower surface of the lower felt 21 positively pressurizes the space 36 causing air to flow through the lower felt 21 into the pocket 30 so as to assist in separating the web W from the lower felt 21 and hold the web W against the upper felt 20 in the run 20a. Moisture-laden air is removed from the ends of the pockets 30-33 by conduits 30a-33a. The guide rollers 24-28 (e.g. 25) may be suction rollers and each comprise a perforated shell and a movable suction baffle, for removing air from A-D. The air passing through the felts may dry the felts completely, but other felt dryers may be provided. The felts are guided and tensioned by rollers (not shown), and felt cleaners may be provided.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US20920471A | 1971-12-17 | 1971-12-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1411772A true GB1411772A (en) | 1975-10-29 |
Family
ID=22777798
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5138272A Expired GB1411772A (en) | 1971-12-17 | 1972-11-07 | Web dryer |
Country Status (6)
Country | Link |
---|---|
US (1) | US3753298A (en) |
JP (1) | JPS5211784B2 (en) |
CA (1) | CA961636A (en) |
ES (1) | ES409732A1 (en) |
GB (1) | GB1411772A (en) |
IT (1) | IT972483B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2131934A (en) * | 1982-12-07 | 1984-06-27 | Beloit Corp | A paper or board dryer for the removal of liquid from a travelling web |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2323574C3 (en) * | 1973-05-10 | 1976-01-08 | J.M. Voith Gmbh, 7920 Heidenheim | Drying section for paper machines |
US4251928A (en) * | 1978-05-30 | 1981-02-24 | Asten Group Inc. | Metal impregnated dryer fabric |
US4359827B1 (en) * | 1979-11-05 | 1994-03-29 | Keith V Thomas | High speed paper drying |
FI62693C (en) * | 1980-12-01 | 1983-02-10 | Valmet Oy | FOERFARANDE I EN FLERCYLINDERTORK ELLER LIKNANDE I EN PAPPERSMASKIN |
US4485567A (en) * | 1982-09-29 | 1984-12-04 | Beloit Corporation | Dryer felt run |
FI68279C (en) * | 1984-03-22 | 1985-08-12 | Valmet Oy | FOERFARANDE OCH ANORDNING FOER ATT HINDRA PAPPERSBANAN ATT FLADDRA I TORKNINGSPARTIET AV EN PAPPERSMASKIN |
FI76142C (en) * | 1985-11-14 | 1988-09-09 | Valmet Oy | FICKVENTILATIONSFOERFARANDE OCH -ANORDNING I EN PAPPERSMASKINS MAONGCYLINDERTORK. |
WO1987006635A1 (en) * | 1986-04-21 | 1987-11-05 | Beloit Corporation | Dryer felt run |
US4815220A (en) * | 1986-07-18 | 1989-03-28 | Beloit Corporation | Web transfer apparatus |
FI80103C (en) * | 1987-06-17 | 1990-04-10 | Valmet Paper Machinery Inc | Method and apparatus in the cylinder dryer of a paper machine, in which a double-weave pull is used |
FI82097C (en) * | 1989-02-17 | 1991-01-10 | Valmet Paper Machinery Inc | Multi-cylinder dryer in a paper machine |
FI891499A (en) * | 1989-03-29 | 1990-09-30 | Valmet Paper Machinery Inc | FICKVENTILATIONSFOERFARANDE OCH -ANORDNING. |
DE4018882A1 (en) * | 1990-06-13 | 1991-12-19 | Voith Gmbh J M | Paper-making drying section - has structured path for paper web and blankets between the guide rollers in a row between two banks of drying cylinders |
US5475934A (en) * | 1993-02-19 | 1995-12-19 | Valmet Paper Machinery, Inc. | Method and device for ensuring the run of the web in the multi-cylinder dryer of a papermachine |
WO1994019535A1 (en) * | 1993-02-19 | 1994-09-01 | Valmet Paper Machinery Inc. | Method and device for ensuring the run of the web in the multi-cylinder dryer of a papermachine |
FI103820B1 (en) * | 1993-11-30 | 1999-09-30 | Valmet Paper Machinery Inc | Procedures for drying a paper web and drying parts for paper machine |
FI93875C (en) * | 1994-02-17 | 1995-06-12 | Valmet Paper Machinery Inc | Procedure for drying a paper web and drying part in a paper machine |
US5661911A (en) * | 1994-02-17 | 1997-09-02 | Valmet Corporation | Dryer section of a paper machine |
US6126787A (en) | 1995-02-01 | 2000-10-03 | Valmet Corporation | Dry end of a paper machine |
FI98387C (en) * | 1995-02-01 | 1997-06-10 | Valmet Corp | Method for the production of surface-treated paper, in particular fine paper, and the dry end of a paper machine |
CA2190563C (en) * | 1996-11-18 | 1999-10-26 | Ralph Mancini | Device and method to stabilize sheet between press section and dryer section of a paper-making machine |
US6260287B1 (en) * | 1997-08-08 | 2001-07-17 | Peter Walker | Wet web stability method and apparatus |
DE19927672A1 (en) * | 1999-06-17 | 2000-12-28 | Asten Ag Eupen | Web drying station at a papermaking machine has guide rollers to set the web path between the rows of drying cylinders to extend the surface contact between the web and the heated cylinders |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI42267B (en) * | 1961-04-17 | 1970-03-02 | Svenska Flaektfabriken Ab | |
GB977956A (en) * | 1962-09-26 | 1964-12-16 | Abitibi Power & Paper Co | Drier section of paper making machine |
US3355816A (en) * | 1965-05-24 | 1967-12-05 | Beloit Corp | Drying cylinders with felt idlers positioned to prevent fluttering of the web being treated |
US3314162A (en) * | 1965-10-19 | 1967-04-18 | Huyck Corp | Papermaking apparatus |
US3316657A (en) * | 1965-10-23 | 1967-05-02 | Huyck Corp | Air deflector utilizing coanda effect |
US3325909A (en) * | 1966-01-27 | 1967-06-20 | Huyck Corp | Fabric for pumping fluids |
-
1971
- 1971-12-17 US US00209204A patent/US3753298A/en not_active Expired - Lifetime
-
1972
- 1972-11-07 GB GB5138272A patent/GB1411772A/en not_active Expired
- 1972-12-16 ES ES409732A patent/ES409732A1/en not_active Expired
- 1972-12-16 JP JP47125820A patent/JPS5211784B2/ja not_active Expired
- 1972-12-18 CA CA159,269A patent/CA961636A/en not_active Expired
- 1972-12-18 IT IT33075/72A patent/IT972483B/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2131934A (en) * | 1982-12-07 | 1984-06-27 | Beloit Corp | A paper or board dryer for the removal of liquid from a travelling web |
Also Published As
Publication number | Publication date |
---|---|
JPS4867838A (en) | 1973-09-17 |
CA961636A (en) | 1975-01-28 |
ES409732A1 (en) | 1975-11-16 |
JPS5211784B2 (en) | 1977-04-02 |
IT972483B (en) | 1974-05-20 |
US3753298A (en) | 1973-08-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PE20 | Patent expired after termination of 20 years |