SE8003413L - LINE MONITORING OF SPECIFIC SURFACE IN MECHANICAL MASSES - Google Patents

LINE MONITORING OF SPECIFIC SURFACE IN MECHANICAL MASSES

Info

Publication number
SE8003413L
SE8003413L SE8003413A SE8003413A SE8003413L SE 8003413 L SE8003413 L SE 8003413L SE 8003413 A SE8003413 A SE 8003413A SE 8003413 A SE8003413 A SE 8003413A SE 8003413 L SE8003413 L SE 8003413L
Authority
SE
Sweden
Prior art keywords
specific surface
pulp
line monitoring
measuring
determining
Prior art date
Application number
SE8003413A
Other languages
Swedish (sv)
Other versions
SE437043B (en
Inventor
A Karnis
P M Shallhorn
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 SE8003413L publication Critical patent/SE8003413L/en
Publication of SE437043B publication Critical patent/SE437043B/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/66—Pulp catching, de-watering, or recovering; Re-use of pulp-water
    • D21F1/68—Pulp catching, de-watering, or recovering; Re-use of pulp-water using hydrocyclones
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F7/00—Other details of machines for making continuous webs of paper
    • D21F7/06—Indicating or regulating the thickness of the layer; Signal devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/06—Investigating concentration of particle suspensions
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Paper (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)

Abstract

ON-LINE MONITORING OF SPECIFIC SURFACE OF MECHANICAL PULPS The specific surface distribution of a pulp may be obtained by fractionating the pulp in a hydrocyclone means into an overflow and an underflow fraction and measuring the specific surface of each of the fractions and the amount of each of the fractions and based on a cumulative normal distribution relationship of cumulative weight fraction as a percent of feed to specific surface, determining the specific surface distribution for said pulp. Also disclosed is a method and apparatus for determining the specific surface of a pulp sample by measuring the light scattering characteristics to obtain a turbidity measurement of the pulp sample, measuring the consistency of the sample and determining the specific surface of said pulp based on the relationship of specific surface to the turbidity measurement for the measured consistency of the pulp.
SE8003413A 1979-05-08 1980-05-07 SET FOR LINE DETERMINATION OF THE KEY DISTRIBUTION OF THE SPECIFIC SURFACE OF THE FIBERS IN A MASS AND DEVICE FOR IMPLEMENTATION OF THE SET SE437043B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA327,137A CA1123626A (en) 1979-05-08 1979-05-08 On-line monitoring of specific surface of mechanical pulps

Publications (2)

Publication Number Publication Date
SE8003413L true SE8003413L (en) 1980-11-09
SE437043B SE437043B (en) 1985-02-04

Family

ID=4114157

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8003413A SE437043B (en) 1979-05-08 1980-05-07 SET FOR LINE DETERMINATION OF THE KEY DISTRIBUTION OF THE SPECIFIC SURFACE OF THE FIBERS IN A MASS AND DEVICE FOR IMPLEMENTATION OF THE SET

Country Status (5)

Country Link
JP (1) JPS55152440A (en)
AU (1) AU539306B2 (en)
CA (1) CA1123626A (en)
FI (1) FI71617C (en)
SE (1) SE437043B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE442247B (en) * 1984-02-14 1985-12-09 Svenska Traeforskningsinst DEVICE FOR IN A SUSPENSION WITH ATMINSTONE TWO TYPES OF SUSPENDED SUBSTANCES WERE FOR THE META CONTENT OF EACH SUBJECT TYPE
JPH0677013B2 (en) * 1984-10-31 1994-09-28 大成建設株式会社 Geological survey method
US5500735A (en) * 1994-07-18 1996-03-19 Pulp And Paper Research Institute Of Canada Method and apparatus for on-line measurement of pulp fiber surface development
FI126688B (en) * 2014-06-30 2017-03-31 Upm Kymmene Corp Method and apparatus for controlling the quality of nanofibrillar cellulose

Also Published As

Publication number Publication date
JPS55152440A (en) 1980-11-27
AU5799480A (en) 1980-11-13
CA1123626A (en) 1982-05-18
FI71617B (en) 1986-10-10
FI71617C (en) 1987-01-19
SE437043B (en) 1985-02-04
FI801476A (en) 1980-11-09
AU539306B2 (en) 1984-09-20

Similar Documents

Publication Publication Date Title
US4276119A (en) Method and apparatus for on-line monitoring of specific surface of mechanical pulps
US3802964A (en) Continuous measurement of pulp properties
US3461030A (en) Determination of fiber characteristics in paper making
US3873416A (en) System for the continuous measurement of the weight-average fiber length of a pulp
ATE41055T1 (en) APPARATUS FOR MEASURING A THICKNESS.
SE8003413L (en) LINE MONITORING OF SPECIFIC SURFACE IN MECHANICAL MASSES
US3879607A (en) Method of measuring the amount of substance associated with a base material
MY106637A (en) A process for rapidly determining the swelling-clay content of cement mixtures.
ES481817A1 (en) Method of determining characteristic rheological quantities of viscoelastic materials
CN106360802B (en) A kind of modification method of tobacco slurry pulping process beating degree
FI954104A (en) Process control method based on wood chip measurement
SE8207180D0 (en) PROCEDURE AND DEVICE FOR SEATING THE CONTENT OF SUSPENDED SUBSTANCES IN A FLOWING MEDIUM
JPS54130156A (en) Automatic measuring machine of screw elements
JPS5533675A (en) Stress measurment method of air-cooled reinforced glass
JPS5670453A (en) Method and device for measuring water content of tea leaf
CN207742143U (en) A kind of online grain moisture content instrument material guide device of resistance-type
Orech et al. Possibility of laser exploitation in measuring for woodworking industry
CN209727036U (en) Measure jig
SE8003414L (en) LINE MONITORING THE FIBER LENGTH IN MECHANICAL MASSES
FI67587C (en) SAETT OCH ANORDNING FOER ATT KONTINUERLIGT AOSTADKOMMA MAETNING AV L-FAKTORN HOS EN PAPPERSMASSASUSPENSION
SU612158A1 (en) Method of determining water-retaining ability of size for paper hydro-phobization
SU371291A1 (en) Method of control of wooden mass sorting quality
SU1659557A1 (en) Method for determining the degree of holding paper pulp in meshed portion of paper making machine
SU787516A1 (en) Method of measuring wood pulp yield
JPS5658637A (en) Measuring method for diameter of particle

Legal Events

Date Code Title Description
NUG Patent has lapsed

Ref document number: 8003413-5

Effective date: 19911209

Format of ref document f/p: F