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CA2297235A1 - Wood chips analyser - Google Patents

Wood chips analyser Download PDF

Info

Publication number
CA2297235A1
CA2297235A1 CA 2297235 CA2297235A CA2297235A1 CA 2297235 A1 CA2297235 A1 CA 2297235A1 CA 2297235 CA2297235 CA 2297235 CA 2297235 A CA2297235 A CA 2297235A CA 2297235 A1 CA2297235 A1 CA 2297235A1
Authority
CA
Canada
Prior art keywords
chips
analyser
sample
conveyor
cameras
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA 2297235
Other languages
French (fr)
Other versions
CA2297235C (en
Inventor
Joseph Nader
Real Frenette
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Autolog Inc
Original Assignee
Autolog 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
Priority claimed from CA002258982A external-priority patent/CA2258982A1/en
Application filed by Autolog Inc filed Critical Autolog Inc
Priority to CA 2297235 priority Critical patent/CA2297235C/en
Publication of CA2297235A1 publication Critical patent/CA2297235A1/en
Application granted granted Critical
Publication of CA2297235C publication Critical patent/CA2297235C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/85—Investigating moving fluids or granular solids
    • 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
    • D21B1/02—Pretreatment of the raw materials by chemical or physical means
    • D21B1/026—Separating fibrous materials from waste
    • D21B1/028—Separating fibrous materials from waste by dry methods
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/46—Wood

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sorting Of Articles (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

The present invention concerns a wood chips analyser. A sample of a load of chips is weighed, and then inserted into the analyser. A sifting drum sifts out any dust present in the sample. The chips are then spread out through the use of a spreader drum and two vibrating trays, which insure that the chips are oriented horizontally. The chips are then fed to a transparent conveyor. A pair of cameras are arranged about the conveyor, one camera facing each surface of the conveyor. The output of the cameras is sent to a controller, which makes a three-dimensional representation of each chip. Once the sample have been analysed, a report is generated according to modifiable criteria. A typical report will indicate the percentage of a category of chips. This information is then used by paper mills to treat the chips accordingly.
CA 2297235 1999-01-27 2000-01-26 Wood chips analyser Expired - Fee Related CA2297235C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2297235 CA2297235C (en) 1999-01-27 2000-01-26 Wood chips analyser

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CA002258982A CA2258982A1 (en) 1999-01-27 1999-01-27 Chip analyser
CA2,258,982 1999-01-27
CA 2297235 CA2297235C (en) 1999-01-27 2000-01-26 Wood chips analyser

Publications (2)

Publication Number Publication Date
CA2297235A1 true CA2297235A1 (en) 2000-07-27
CA2297235C CA2297235C (en) 2007-03-20

Family

ID=31888830

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2297235 Expired - Fee Related CA2297235C (en) 1999-01-27 2000-01-26 Wood chips analyser

Country Status (1)

Country Link
CA (1) CA2297235C (en)

Also Published As

Publication number Publication date
CA2297235C (en) 2007-03-20

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