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 pulp

Info

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
Application number
GB15383/44A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MANUEL CROCKER MCDONALD
Original Assignee
MANUEL CROCKER MCDONALD
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to US262160A priority Critical patent/US2355091A/en
Application filed by MANUEL CROCKER MCDONALD filed Critical MANUEL CROCKER MCDONALD
Priority to GB15383/44A priority patent/GB583967A/en
Publication of GB583967A publication Critical patent/GB583967A/en
Expired legal-status Critical Current

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.
GB15383/44A 1939-03-16 1944-08-11 Improvements in apparatus for the treatment and removal of chemicals from cooked or digested fiber pulp Expired GB583967A (en)

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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
US2355091A (en) 1944-08-08

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