SE8001252L - MESSAGE PROCESSING DEVICE - Google Patents

MESSAGE PROCESSING DEVICE

Info

Publication number
SE8001252L
SE8001252L SE8001252A SE8001252A SE8001252L SE 8001252 L SE8001252 L SE 8001252L SE 8001252 A SE8001252 A SE 8001252A SE 8001252 A SE8001252 A SE 8001252A SE 8001252 L SE8001252 L SE 8001252L
Authority
SE
Sweden
Prior art keywords
stock
impure
scroll
inlet
centrifuging chamber
Prior art date
Application number
SE8001252A
Other languages
Unknown language ( )
Swedish (sv)
Inventor
R Field
Original Assignee
Beloit Walmsley Ltd
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 Beloit Walmsley Ltd filed Critical Beloit Walmsley Ltd
Publication of SE8001252L publication Critical patent/SE8001252L/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
    • D21D5/18—Purification of the pulp suspension by mechanical means; Apparatus therefor with the aid of centrifugal force
    • D21D5/20—Purification of the pulp suspension by mechanical means; Apparatus therefor with the aid of centrifugal force in apparatus with a horizontal axis
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/30—Defibrating by other means
    • D21B1/34—Kneading or mixing; Pulpers
    • D21B1/345—Pulpers

Abstract

In known stock purifying apparatus centrifugal force is utilized to separate out the impurities, the impure stock being introduced into the centrifuging chamber of the apparatus at the radially outermost zone and thus requiring to be at a suitable pressure to counter centrifugal forces. In the present apparatus the impure stock is introduced via an inlet (16) in the form of a scroll (30), the scroll leading into the centrifuging chamber (10) at the axially central region thereof where the lowest pressure prevails. The scroll imparts a spiral motion to the stock so that it easily merges with the stock which is being centrifuged by an impeller (20) in an end wall (14) opposite the scroll inlet. Due to the introduction of the impure stock in a low pressure region, running costs are reduced as the impure stock does not require pressurising to the extent required in the relevant prior art. <IMAGE>
SE8001252A 1979-02-16 1980-02-15 MESSAGE PROCESSING DEVICE SE8001252L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7905558 1979-02-16

Publications (1)

Publication Number Publication Date
SE8001252L true SE8001252L (en) 1980-08-17

Family

ID=10503246

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8001252A SE8001252L (en) 1979-02-16 1980-02-15 MESSAGE PROCESSING DEVICE

Country Status (4)

Country Link
DE (1) DE3005518A1 (en)
FI (1) FI72359C (en)
GB (1) GB2043493B (en)
SE (1) SE8001252L (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3140549C2 (en) * 1981-10-13 1986-10-16 J.M. Voith Gmbh, 7920 Heidenheim Sorting device for fiber suspensions in the paper industry
DE3421330A1 (en) * 1984-06-08 1985-12-12 J.M. Voith Gmbh, 7920 Heidenheim Waste paper pulping and sorting apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE501981A (en) * 1950-05-20
DE1082880B (en) * 1958-10-30 1960-06-09 Voith Gmbh J M Hydrocyclone for cleaning high density suspensions, especially fiber suspensions
DE2140372A1 (en) * 1971-08-12 1973-03-01 Voith Gmbh J M WASTE PAPER PROCESSING PLANT
CA1068959A (en) * 1977-01-03 1980-01-01 Beloit Corporation Apparatus for pulping and grading waste material

Also Published As

Publication number Publication date
FI800467A (en) 1980-08-17
GB2043493A (en) 1980-10-08
DE3005518A1 (en) 1980-09-04
FI72359B (en) 1987-01-30
GB2043493B (en) 1982-11-24
DE3005518C2 (en) 1990-05-03
FI72359C (en) 1987-05-11

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