SE8901799L - PROCEDURE FOR SEALING THE PIECE IN A ROTATING BODY IN A SILVER AND SEALING SYSTEM USED IN THE PROCEDURE - Google Patents

PROCEDURE FOR SEALING THE PIECE IN A ROTATING BODY IN A SILVER AND SEALING SYSTEM USED IN THE PROCEDURE

Info

Publication number
SE8901799L
SE8901799L SE8901799A SE8901799A SE8901799L SE 8901799 L SE8901799 L SE 8901799L SE 8901799 A SE8901799 A SE 8901799A SE 8901799 A SE8901799 A SE 8901799A SE 8901799 L SE8901799 L SE 8901799L
Authority
SE
Sweden
Prior art keywords
procedure
sealing
silo
sealed
sealing system
Prior art date
Application number
SE8901799A
Other languages
Swedish (sv)
Other versions
SE8901799D0 (en
Inventor
R Ljokkoi
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 SE8901799D0 publication Critical patent/SE8901799D0/en
Publication of SE8901799L publication Critical patent/SE8901799L/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
    • B01D33/067—Construction of the filtering drums, e.g. mounting or sealing arrangements
    • 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
    • D21D5/02—Straining or screening the pulp
    • D21D5/06—Rotary screen-drums

Abstract

This invention refers to a procedure for sealing an end piece of a rotary body in a silo and a sealing system used in the procedure.There are two previously known types of seals, of which the simplest consists of arranging a sufficiently small column between the rotating parts. However, for practical reasons it is not possible to make the column very small, and this solution is therefore suitable only for 'knot silos', in which knots and similar sized particles are separated from the pulp. Another alternative seal is the labyrinth type, which can easily break down or can also break down the whole installation if, for instance, knots come in between the sealed surfaces.It is characteristic of the procedure according to the invention for a force field to be generated between the sealed surfaces of the rotary body and its opposite surface, this force field preventing leakage between the said surfaces from the side of the silo that has higher pressure that the opposite side. On its part, it is characteristic for the used sealing system to have the rotating body sealed to at least one end surface (13) against the level surface (10) of the silo's casing or end piece by arranging bodies (14) in at least one of the named surfaces (13, 10), which cause a power component / pressure component aimed at the leakage flow, the component stopping the effect of the pressure that causes the leakage flow.<IMAGE>
SE8901799A 1988-05-24 1989-05-19 PROCEDURE FOR SEALING THE PIECE IN A ROTATING BODY IN A SILVER AND SEALING SYSTEM USED IN THE PROCEDURE SE8901799L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI882434A FI79394C (en) 1988-05-24 1988-05-24 A method for sealing the end piece of a late screen rotary member and sealing system used in the method.

Publications (2)

Publication Number Publication Date
SE8901799D0 SE8901799D0 (en) 1989-05-19
SE8901799L true SE8901799L (en) 1989-11-25

Family

ID=8526507

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8901799A SE8901799L (en) 1988-05-24 1989-05-19 PROCEDURE FOR SEALING THE PIECE IN A ROTATING BODY IN A SILVER AND SEALING SYSTEM USED IN THE PROCEDURE

Country Status (2)

Country Link
FI (1) FI79394C (en)
SE (1) SE8901799L (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE534497C2 (en) * 2009-12-21 2011-09-13 Metso Paper Inc Screening unit, screening device and method for inspection / adjustment of an axial gap

Also Published As

Publication number Publication date
SE8901799D0 (en) 1989-05-19
FI79394B (en) 1989-08-31
FI79394C (en) 1989-12-11
FI882434A0 (en) 1988-05-24

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