SE8107498L - PLANT FOR MONITORING THE ASH BED IN A RESTLET RECOVERY PAN - Google Patents

PLANT FOR MONITORING THE ASH BED IN A RESTLET RECOVERY PAN

Info

Publication number
SE8107498L
SE8107498L SE8107498A SE8107498A SE8107498L SE 8107498 L SE8107498 L SE 8107498L SE 8107498 A SE8107498 A SE 8107498A SE 8107498 A SE8107498 A SE 8107498A SE 8107498 L SE8107498 L SE 8107498L
Authority
SE
Sweden
Prior art keywords
bed
monitoring
restlet
outline
plant
Prior art date
Application number
SE8107498A
Other languages
Unknown language ( )
Swedish (sv)
Inventor
E G Lucas
Original Assignee
Domtar Inc
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 Domtar Inc filed Critical Domtar Inc
Publication of SE8107498L publication Critical patent/SE8107498L/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/022—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by means of tv-camera scanning

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Paper (AREA)
  • Control Of Combustion (AREA)

Abstract

BED HEIGHT MEASUREMENT Bed height measurement device is provided by means of television camera monitoring the bed in a kraft recovery boiler and generating a signal, that is digitized and anallyzed by suitable computer means to discriminate the outline of the surface of the char bed. This outline may then be compared with a pre-set bed profile to provide a nonsubjective indication of the shape of the bed. Automatic controls may also be provided to regulate the bed shape, maintain the said outline within a pre-determined distance from said pre-determined profile.
SE8107498A 1980-12-17 1981-12-15 PLANT FOR MONITORING THE ASH BED IN A RESTLET RECOVERY PAN SE8107498L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA000366972A CA1166842A (en) 1980-12-17 1980-12-17 Bed height measurement

Publications (1)

Publication Number Publication Date
SE8107498L true SE8107498L (en) 1982-06-18

Family

ID=4118725

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8107498A SE8107498L (en) 1980-12-17 1981-12-15 PLANT FOR MONITORING THE ASH BED IN A RESTLET RECOVERY PAN

Country Status (3)

Country Link
CA (1) CA1166842A (en)
FI (1) FI814038L (en)
SE (1) SE8107498L (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI79623C (en) * 1986-10-16 1990-01-10 Imatran Voima Oy DETAILED DESCRIPTION OF THE AID.
JPS63269003A (en) * 1987-04-27 1988-11-07 Shin Etsu Handotai Co Ltd Apparatus for detecting position of crystallization interface
FI118743B (en) 2004-11-04 2008-02-29 Andritz Oy Control of a filament bed in the recovery boiler
FI130402B (en) * 2021-08-17 2023-08-14 Valmet Automation Oy A method for controlling a chemical recovery boiler and a chemical recovery boiler

Also Published As

Publication number Publication date
FI814038L (en) 1982-06-18
CA1166842A (en) 1984-05-08

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