GB583967A - Improvements in apparatus for the treatment and removal of chemicals from cooked or digested fiber pulp - Google Patents
Improvements in apparatus for the treatment and removal of chemicals from cooked or digested fiber pulpInfo
- Publication number
- GB583967A GB583967A GB15383/44A GB1538344A GB583967A GB 583967 A GB583967 A GB 583967A GB 15383/44 A GB15383/44 A GB 15383/44A GB 1538344 A GB1538344 A GB 1538344A GB 583967 A GB583967 A GB 583967A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pulp
- liquid
- screw
- feed
- pipe
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B9/00—Presses specially adapted for particular purposes
- B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
- B30B9/12—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing
- B30B9/121—Screw constructions
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Abstract
<PICT:0583967/IV/1> Fibre pulp, produced by the chemical digestion of wood or other fibrous material, for use, for example, in the manufacture of paper, is treated for the removal of chemicals in an apparatus comprising a constrictive permeable passage for confining the pulp as it leaves the digester, means for expressing chemical-laden liquid by pressure, means for thickening the stock into a magma, and means for introducing liquid extractant for chemical as the pulp passes from the feed-in portion of the passage into a succeeding portion in which liquid is expelled from the cake by displacement by the extractant. Pulp from a digester 11, Fig. 1, is fed to a perforated tubular housing 26, surrounded by a casing 17 and is conveyed by a pressing screw 16 in a screw channel of progressively reduced cross-sectional area on the feed in portion thereof. Liquid expressed from the pulp passes through the housing 26 to a pipe 43, whence it may be passed through a valve 45 either to a recovery plant through a tube 47 or to be led away as desired through a pipe 48, or to be returned to dilute the pulp leaving the digester 11. The magma formed in the feed in section of the screw channel passes into a succeeding section at the opposite side of a partition 31 in the casing 17. At the junction of the two sections the depth of the screw-thread increases abruptly and extracting liquid is introduced through holes X from an internal bore 38 in the screw 16 to displace partially the liquid in the pulp. The latter liquid passes through the housing 26 to be collected through the pipe 44 for disposal in the alternative means used for the liquid from the pipe 43. The treated pulp leaves the apparatus through a hood 18 containing a rotating paddle 24. In a modified construction, the rotary screw 16 may comprise a number of sections in addition to the feed-in section, the depth of the screw-thread being increased abruptly at the junctions of the sections where the extracting liquid is introduced. A number of constructions of either form of apparatus may be assembled to treat the pulp in a succession of chemical removing operations, means being provided for diluting the pulp as it leaves one construction to enter the next.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US262160A US2355091A (en) | 1939-03-16 | 1939-03-16 | Apparatus for the treatment and removal of chemicals from cooked or digested fiber pulp |
GB15383/44A GB583967A (en) | 1939-03-16 | 1944-08-11 | Improvements in apparatus for the treatment and removal of chemicals from cooked or digested fiber pulp |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US262160A US2355091A (en) | 1939-03-16 | 1939-03-16 | Apparatus for the treatment and removal of chemicals from cooked or digested fiber pulp |
GB15383/44A GB583967A (en) | 1939-03-16 | 1944-08-11 | Improvements in apparatus for the treatment and removal of chemicals from cooked or digested fiber pulp |
Publications (1)
Publication Number | Publication Date |
---|---|
GB583967A true GB583967A (en) | 1947-01-03 |
Family
ID=32964093
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB15383/44A Expired GB583967A (en) | 1939-03-16 | 1944-08-11 | Improvements in apparatus for the treatment and removal of chemicals from cooked or digested fiber pulp |
Country Status (2)
Country | Link |
---|---|
US (1) | US2355091A (en) |
GB (1) | GB583967A (en) |
Families Citing this family (43)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2542801A (en) * | 1945-04-12 | 1951-02-20 | Joaquin J De La Roza Sr | Continuous digestion apparatus for the production of highly purified cellulose |
US2534324A (en) * | 1945-07-02 | 1950-12-19 | Hildebrandt Paul G Von | Process for separating cooking liquor from pulp |
US2592983A (en) * | 1945-07-02 | 1952-04-15 | Hildebrandt Paul G Von | Apparatus for separating cooking liquor from pulp |
US2547577A (en) * | 1946-07-22 | 1951-04-03 | Detrex Corp | Countercurrent extraction apparatus |
US2606114A (en) * | 1946-11-01 | 1952-08-05 | Sidney D Wells | Continuous pulp digester |
US2607680A (en) * | 1947-02-17 | 1952-08-19 | Buckeye Cotton Oil Company | Apparatus and method for processing vegetable fibers |
US2549997A (en) * | 1948-12-09 | 1951-04-24 | V D Andcrson Company | Plug seal for solvent extraction columns |
US2701518A (en) * | 1950-10-23 | 1955-02-08 | Manuel C Mcdonald | Worm |
DE977659C (en) * | 1951-03-25 | 1968-01-25 | Svenska Taendsticks Aktiebolag | Process for the recovery of waste liquors from semi-chemical pulp digestion |
US2750855A (en) * | 1951-12-20 | 1956-06-19 | Elbert C Lathrop | Dewatering of pulp |
US3067672A (en) * | 1957-03-11 | 1962-12-11 | French Oil Mill Machinery | Expressing apparatus and method |
US3086452A (en) * | 1957-07-09 | 1963-04-23 | French Oil Mill Machinery | Apparatus for recovery of juice from sucrose bearing materials |
US3037445A (en) * | 1957-07-09 | 1962-06-05 | French Oil Mill Machinery | Recovery of juice from sucrose bearing materials |
US3041233A (en) * | 1957-12-17 | 1962-06-26 | Kamyr Ab | Method of introducing high density pulp into a pressure vessel |
US3181454A (en) * | 1962-11-08 | 1965-05-04 | Bauer Bros Co | Pressurized press |
US3256710A (en) * | 1963-06-27 | 1966-06-21 | Manitowoc Co | Apparatus for making frozen product |
US3472159A (en) * | 1965-02-19 | 1969-10-14 | Robert S Washburn | Screw presses |
US3276353A (en) * | 1965-07-21 | 1966-10-04 | French Oil Mill Machinery | Controls for dewatering press |
US3585924A (en) * | 1969-03-10 | 1971-06-22 | William J Nolan | Apparatus for the removal of liquids from fibrous materials |
US3595162A (en) * | 1969-11-26 | 1971-07-27 | Kurt Heinrich | Method for pressing liquid out of fibrous or woodlike material |
US3754658A (en) * | 1970-10-19 | 1973-08-28 | H Messing | Pulp thickener having two vertical perforated screens with nonmoving spirally wrapped blades therebetween |
US3938434A (en) * | 1973-03-19 | 1976-02-17 | Cox Clyde H | Sludge dewatering |
US4363264A (en) * | 1980-02-15 | 1982-12-14 | Howden Equipment Services Pty. Ltd. | Counter current diffusion extractor |
EP0076871B1 (en) * | 1981-10-12 | 1985-06-26 | Heinz Schumacher | Apparatus and process for continuous solid-liquid extraction |
US4595456A (en) * | 1983-04-13 | 1986-06-17 | Andersson Alf Ove | Pulp washing process |
US4632729A (en) * | 1984-05-01 | 1986-12-30 | Laakso Oliver A | Chip presteaming and air washing |
US4773965A (en) * | 1986-02-20 | 1988-09-27 | Great Northern Paper | Strong and clean sulfite pulp and method of making same |
NO159494C (en) * | 1986-10-23 | 1989-01-04 | Kvaerner Eureka As | PROCEDURE BY BLACKING CELLULOSMASS OR FRACTION THEREOF, PLANT FOR USE BY IMPLEMENTING THE PROCEDURE. |
FI77063B (en) * | 1986-12-17 | 1988-09-30 | Ahlstroem Oy | FOERFARANDE FOER EFFEKTIVERING AV FIBERSUSPENSIONSTVAETT. |
SE456149B (en) * | 1987-02-18 | 1988-09-12 | Hedemora Ab | PROCEDURE AND DEVICE FOR DRAINAGE AND PRESSURE OF MATERIALS BY A SCREW PRESSURE |
US4976819A (en) * | 1988-04-28 | 1990-12-11 | Potlatch Corporation | Pulp treatment methods |
US4915830A (en) * | 1988-08-19 | 1990-04-10 | Sprout-Bauer, Inc. | Pulp wash press |
US5651305A (en) * | 1995-05-30 | 1997-07-29 | Brown International, Inc. | Food product finisher |
SE0201184D0 (en) * | 2002-04-18 | 2002-04-18 | Coriarius Ab | Screw compressor for compression of moist material and method for compression and washing |
SE0202733D0 (en) * | 2002-09-16 | 2002-09-16 | Skogsind Tekn Foskningsinst | Process and arrangement for replacing fluid in fibers with a replacement fluid |
US20050189287A1 (en) * | 2004-02-26 | 2005-09-01 | Liung Feng Industrial Co., Ltd. | Slurry expressing and liquid displacing device |
DE102010031984A1 (en) * | 2010-07-22 | 2012-01-26 | Few Separator Gmbh | Attaching assembly for attaching screen on screen carrier of worm press separator, has mounting part connected to screen carrier and to worm press separator part and provided with engagement element that engages with cavity |
IT1404087B1 (en) * | 2011-01-14 | 2013-11-08 | Caneva | KNITTING HEAD FOR TUBE HOSE MACHINES AND TAPPING MACHINE INCLUDING THE HEAD. |
JP5927986B2 (en) * | 2012-02-28 | 2016-06-01 | 株式会社サタケ | Cereal pest control device and control method |
EP3464713B1 (en) | 2016-05-27 | 2023-09-27 | Fibratech Pte. Ltd | A method and a system for production of high molecular weight lignin |
FI130568B (en) * | 2020-07-06 | 2023-11-21 | Amppc Finland Oy | A cooking method |
US11162218B1 (en) | 2020-09-30 | 2021-11-02 | Robert Clayton | Biomass pulp digester |
CN115923227B (en) * | 2022-11-01 | 2023-08-04 | 诸暨叶蔓电子商务有限公司 | Mosquito-repellent incense production facility |
-
1939
- 1939-03-16 US US262160A patent/US2355091A/en not_active Expired - Lifetime
-
1944
- 1944-08-11 GB GB15383/44A patent/GB583967A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2355091A (en) | 1944-08-08 |
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