FI940371A - Method and apparatus for admixing gaseous chemical in a fiber suspension - Google Patents

Method and apparatus for admixing gaseous chemical in a fiber suspension Download PDF

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Publication number
FI940371A
FI940371A FI940371A FI940371A FI940371A FI 940371 A FI940371 A FI 940371A FI 940371 A FI940371 A FI 940371A FI 940371 A FI940371 A FI 940371A FI 940371 A FI940371 A FI 940371A
Authority
FI
Finland
Prior art keywords
fibre suspension
gas
stirrer
admixing
fiber suspension
Prior art date
Application number
FI940371A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI940371A0 (en
FI98794C (en
FI98794B (en
Inventor
Matti Manninen
Kari Peltonen
Reijo Vesala
Original Assignee
Ahlstroem Oy
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 Ahlstroem Oy filed Critical Ahlstroem Oy
Publication of FI940371A0 publication Critical patent/FI940371A0/en
Priority to FI940371A priority Critical patent/FI98794C/en
Priority to FI945425A priority patent/FI103019B/en
Priority to CA002140563A priority patent/CA2140563C/en
Priority to ES95100973T priority patent/ES2124921T3/en
Priority to AT95100973T priority patent/ATE171883T1/en
Priority to JP00970195A priority patent/JP3808520B2/en
Priority to EP95100973A priority patent/EP0664150B1/en
Priority to DE69505159T priority patent/DE69505159T2/en
Publication of FI940371A publication Critical patent/FI940371A/en
Priority to US08/767,524 priority patent/US5791778A/en
Application granted granted Critical
Publication of FI98794B publication Critical patent/FI98794B/en
Publication of FI98794C publication Critical patent/FI98794C/en
Priority to JP2005205646A priority patent/JP3819017B2/en

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Abstract

The present invention relates to a method and a device for admixing of large amounts of gas into a fibre suspension of middle consistency (8 - 25 per cent) by means of a rotor provided with agitation means and arranged in a stirrer housing, the method substantially comprising the following steps: a) said gas and fibre suspension is introduced into the stirrer, b) said gas is admixed into the fibre suspension being in a fluidised state, while at the same time, the flow is restricted in such a way that the pressure variations caused by the inlet flow of the fibre suspension and/or outlet flow are prevented to influence the mixing process, and c) the mixture thus obtained is removed from the stirrer. <IMAGE>
FI940371A 1994-01-25 1994-01-25 A method and apparatus for mixing a gaseous chemical into a fiber suspension FI98794C (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
FI940371A FI98794C (en) 1994-01-25 1994-01-25 A method and apparatus for mixing a gaseous chemical into a fiber suspension
FI945425A FI103019B (en) 1994-01-25 1994-11-18 Process and apparatus for mixing a gaseous chemical in a fiber suspension
CA002140563A CA2140563C (en) 1994-01-25 1995-01-19 Method and apparatus for mixing gaseous chemical to fibre suspension
ES95100973T ES2124921T3 (en) 1994-01-25 1995-01-25 PROCEDURE AND APPARATUS FOR MIXING GASEOUS CHEMICALS IN FIBER SUSPENSIONS.
AT95100973T ATE171883T1 (en) 1994-01-25 1995-01-25 METHOD AND APPARATUS FOR MIXING A GASEOUS CHEMICAL SUBSTANCE TO FIBER SUSPENSIONS
JP00970195A JP3808520B2 (en) 1994-01-25 1995-01-25 Method and apparatus for mixing gas chemicals into fiber suspensions
EP95100973A EP0664150B1 (en) 1994-01-25 1995-01-25 Method and apparatus for mixing gaseous chemical to fibre suspension
DE69505159T DE69505159T2 (en) 1994-01-25 1995-01-25 Method and apparatus for mixing a gaseous chemical substance into fiber suspensions
US08/767,524 US5791778A (en) 1994-01-25 1996-12-16 Method and apparatus for mixing gaseous chemical to fiber suspension
JP2005205646A JP3819017B2 (en) 1994-01-25 2005-07-14 Method and apparatus for mixing gas chemicals into fiber suspensions

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI940371A FI98794C (en) 1994-01-25 1994-01-25 A method and apparatus for mixing a gaseous chemical into a fiber suspension
FI940371 1994-01-25

Publications (4)

Publication Number Publication Date
FI940371A0 FI940371A0 (en) 1994-01-25
FI940371A true FI940371A (en) 1995-07-26
FI98794B FI98794B (en) 1997-05-15
FI98794C FI98794C (en) 1997-08-25

Family

ID=8539720

Family Applications (1)

Application Number Title Priority Date Filing Date
FI940371A FI98794C (en) 1994-01-25 1994-01-25 A method and apparatus for mixing a gaseous chemical into a fiber suspension

Country Status (1)

Country Link
FI (1) FI98794C (en)

Also Published As

Publication number Publication date
FI940371A0 (en) 1994-01-25
FI98794C (en) 1997-08-25
FI98794B (en) 1997-05-15

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