ATE16614T1 - METHOD OF CONTROLLING A PRESSURE VESSEL FOR TREATMENT OF PULP. - Google Patents

METHOD OF CONTROLLING A PRESSURE VESSEL FOR TREATMENT OF PULP.

Info

Publication number
ATE16614T1
ATE16614T1 AT81890204T AT81890204T ATE16614T1 AT E16614 T1 ATE16614 T1 AT E16614T1 AT 81890204 T AT81890204 T AT 81890204T AT 81890204 T AT81890204 T AT 81890204T AT E16614 T1 ATE16614 T1 AT E16614T1
Authority
AT
Austria
Prior art keywords
pulp
liquid
outlet
withdrawn
flow rate
Prior art date
Application number
AT81890204T
Other languages
German (de)
Inventor
Finn Jacobsen
Original Assignee
Kamyr Ab
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
Application filed by Kamyr Ab filed Critical Kamyr Ab
Application granted granted Critical
Publication of ATE16614T1 publication Critical patent/ATE16614T1/en

Links

Classifications

    • 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

Abstract

Cellulosic pulp is treated to obtain simultaneous pulp flow and consistency control, utilizing a pressure-tight vessel (10) having a pulp inlet (12), pulp outlet (13), treatment liquid inlet (26), liquid extraction outlet (17), and movable screen (18) adjacent the liquid outlet (17). Pulp is fed into the pulp inlet (12) at a particular flow rate, and treated pulp is withdrawn through the pulp outlet (13) at a particular flow rate. The flow rate of the pulp being withdrawn is set and controlled by controlling the flow rate of the pulp fed into the pulp inlet (12). Liquid is withdrawn through the liquid outlet (17) at a particular flow rate, and the consistency of the pulp being withdrawn through the pulp outlet (13) is set and controlled by controlling the flow rate of liquid from the liquid outlet (17). Treatment liquid is fed into the liquid inlet (26), the nature of the pulp treatment and the qualities of the pulp being controlled by controlling the temperature and chemical makeup of the pulp introduced into the liquid inlet (26). A plurality of vessels (10, 10 min , 10 sec ) may be provided with the pulp withdrawn from each vessel fed to the subsequent vessel, and the liquid withdrawn from each vessel fed to the preceding vessel.
AT81890204T 1980-12-31 1981-12-18 METHOD OF CONTROLLING A PRESSURE VESSEL FOR TREATMENT OF PULP. ATE16614T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US22181280A 1980-12-31 1980-12-31
EP81890204A EP0055701B1 (en) 1980-12-31 1981-12-18 A method of controlling a pressure-tight vessel for treating cellulosic pulp

Publications (1)

Publication Number Publication Date
ATE16614T1 true ATE16614T1 (en) 1985-12-15

Family

ID=22829494

Family Applications (1)

Application Number Title Priority Date Filing Date
AT81890204T ATE16614T1 (en) 1980-12-31 1981-12-18 METHOD OF CONTROLLING A PRESSURE VESSEL FOR TREATMENT OF PULP.

Country Status (8)

Country Link
EP (1) EP0055701B1 (en)
JP (1) JPS57133292A (en)
AT (1) ATE16614T1 (en)
BR (1) BR8108558A (en)
CA (1) CA1173603A (en)
DE (1) DE3173030D1 (en)
FI (1) FI69139C (en)
NO (1) NO157626C (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4908896A (en) * 1987-11-27 1990-03-20 Kamyr Ab Backflushing pressure diffuser screens
US4793161A (en) * 1987-11-27 1988-12-27 Kamyr Ab Effective diffuser/thickener screen backflushing
US5066362A (en) * 1987-12-01 1991-11-19 Kamyr, Inc. Extended delignification in pressure diffusers
US5021127A (en) * 1987-12-01 1991-06-04 Kamyr, Inc. Extended delignification in pressure diffusers
SE462435B (en) * 1988-11-11 1990-06-25 Kamyr Ab MAKE STABILIZING THE PRESSURE AND LIQUIDIZATION COUNTRIES IN A SILVER AND SILVER DEVICE
US4975148A (en) * 1988-12-06 1990-12-04 Ahlstromforetagen Svenska Ab Cold blow system for batch production of pulp
FI82082C (en) * 1989-03-29 1991-12-10 Ahlstroem Oy FOERFARANDE OCH ANORDNING FOER BEHANDLING AV MASSA.
US5538632A (en) * 1993-10-28 1996-07-23 Beloit Technologies, Inc. Multiple filter dynamic washer
WO2015080190A1 (en) * 2013-11-29 2015-06-04 三菱化学株式会社 Slurry cleaning device and cleaning system
FI130499B (en) * 2021-03-25 2023-10-10 Metsae Fibre Oy Method and apparatus for treating mixtures of liquids and solids

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE312269B (en) * 1964-12-17 1969-07-07 T Aremaa
FR1468440A (en) * 1965-02-17 1967-02-03 Kamyr Ab Process for acting on the consistency of cellulose pulp in bleaching plants
US3807202A (en) * 1969-09-30 1974-04-30 K Gunkel Continuous washing apparatus for pulp stock and the like
SE394821B (en) * 1975-04-15 1977-07-11 Kamyr Ab METHOD AND DEVICE FOR DRAINING MOVEMENT SUSPENSIONS
GB1566099A (en) * 1976-11-11 1980-04-30 Largo Lintec Ltd Pulping cellulosic material
US4212239A (en) * 1979-02-15 1980-07-15 Hobart Corporation Method and apparatus for removing moisture from wet pulp

Also Published As

Publication number Publication date
DE3173030D1 (en) 1986-01-02
FI814173L (en) 1982-07-01
CA1173603A (en) 1984-09-04
FI69139B (en) 1985-08-30
JPS57133292A (en) 1982-08-17
EP0055701B1 (en) 1985-11-21
NO814440L (en) 1982-07-01
NO157626B (en) 1988-01-11
BR8108558A (en) 1982-10-19
EP0055701A1 (en) 1982-07-07
FI69139C (en) 1985-12-10
NO157626C (en) 1988-04-20

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
EELA Cancelled due to lapse of time