GB733441A - Improvements in or relating to a paper making machine - Google Patents
Improvements in or relating to a paper making machineInfo
- Publication number
- GB733441A GB733441A GB2624452A GB2624452A GB733441A GB 733441 A GB733441 A GB 733441A GB 2624452 A GB2624452 A GB 2624452A GB 2624452 A GB2624452 A GB 2624452A GB 733441 A GB733441 A GB 733441A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ponding chamber
- flow
- slice
- compartment
- pulp
- 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
-
- 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
- D21F1/02—Head boxes of Fourdrinier machines
-
- 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
- D21F1/02—Head boxes of Fourdrinier machines
- D21F1/028—Details of the nozzle section
Landscapes
- Paper (AREA)
Abstract
733,441. Flow boxes of paper-making machines. PAPER PATENTS CO. Oct. 20, 1952, No. 26244/52. Class 96. Screened pulp flows to a flow-evening compartment 145 adjoining a suction compartment 159 exhausted at 165 &c. to remove entrained air, to a flow-spreading conduit 33, under the curved tip 119 of a vertically adjustable slice 37 into a ponding chamber 49 pressurized by an air duct 77 to aid in maintaining the depth D at 12 inches or less, a side-compartment connected to the ponding chamber below and above the pulp level and having an outlet pipe with a tapered open end also controlling the depth D; the pulp then passing, in a state of finescale turbulence, beneath an outlet slice 57 to the wire-cloth 11. The slice 57 is adjusted vertically at 71 &c. and has a projecting tongue 131 which is also adjustable in height and which can be flexed slightly by adjusting screws spaced across the machine. The slice 57 is immediately preceded by a rotating flow-evener roll 73, e.g. with ¢ inch diameter holes occupying 42 per cent of the area of the shell. The walls of the ponding chamber 49 may be sprayed at 127 &c. to prevent the accumulation of fibre thereon. In modifications, (a) the inlet to the ponding chamber may be from a cross-flow pulp-mixing compartment and an evener-roll below the ponding chamber via two perforated plates with hit-or-miss type adjustment separating the mixing compartment from the ponding chamber; and (b) the pressurized ponding chamber is preceded by a flow box having a succession of substantially vertical baffles &c.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2624452A GB733441A (en) | 1952-10-20 | 1952-10-20 | Improvements in or relating to a paper making machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2624452A GB733441A (en) | 1952-10-20 | 1952-10-20 | Improvements in or relating to a paper making machine |
Publications (1)
Publication Number | Publication Date |
---|---|
GB733441A true GB733441A (en) | 1955-07-13 |
Family
ID=10240594
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2624452A Expired GB733441A (en) | 1952-10-20 | 1952-10-20 | Improvements in or relating to a paper making machine |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB733441A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0209696A1 (en) * | 1985-07-12 | 1987-01-28 | Sulzer-Escher Wyss Gmbh | Headbox for a paper-making machine |
CN112900127A (en) * | 2020-11-28 | 2021-06-04 | 孙佳斌 | Slurry impurity separation system |
-
1952
- 1952-10-20 GB GB2624452A patent/GB733441A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0209696A1 (en) * | 1985-07-12 | 1987-01-28 | Sulzer-Escher Wyss Gmbh | Headbox for a paper-making machine |
US4906336A (en) * | 1985-07-12 | 1990-03-06 | Sulzer-Escher Wyss Gmbh | Headbox device for a papermaking machine |
CN112900127A (en) * | 2020-11-28 | 2021-06-04 | 孙佳斌 | Slurry impurity separation system |
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