BR0213386A - Pulp Digester Control System Online - Google Patents

Pulp Digester Control System Online

Info

Publication number
BR0213386A
BR0213386A BR0213386-5A BR0213386A BR0213386A BR 0213386 A BR0213386 A BR 0213386A BR 0213386 A BR0213386 A BR 0213386A BR 0213386 A BR0213386 A BR 0213386A
Authority
BR
Brazil
Prior art keywords
wood
control system
species
digester
pieces
Prior art date
Application number
BR0213386-5A
Other languages
Portuguese (pt)
Inventor
Douglas John Mickenzie
Sita Ruby Warren
Original Assignee
Amec Americas 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 Amec Americas Ltd filed Critical Amec Americas Ltd
Publication of BR0213386A publication Critical patent/BR0213386A/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
    • G01N27/622—Ion mobility spectrometry
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/228—Automation of the pulping processes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • G01N25/56—Investigating or analyzing materials by the use of thermal means by investigating moisture content
    • 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
    • G01N33/34—Paper
    • G01N33/343—Paper pulp

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pathology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Paper (AREA)

Abstract

"SISTEMA DE CONTROLE DIGESTOR DE POLPA ON-LINE". A presente invenção refere-se a um sistema de controle de digestor de polpa on-line novo. Mais particularmente, esta invenção trata de um novo sistema de controle que emprega medições em tempo real a partir da espectrometria de mobilidade de íon para, automaticamente, determinar rápida e continuamente, as características físicas e químicas de suprimento de alimentação de pedaços de madeira sendo alimentado em um digestor de polpa e, deste modo, maximizar a eficiência do processo, minimizar o consumo de produtos químicos e de energia e melhorar a uniformidade do produto. Um sistema de controle inteligente que utiliza o teor de umidade e as espécies de pedaços de madeira em um processo de formação de polpa compreende: (a) transportar pedaços de madeira de uma instalação de armazenamento de pedaços de madeira até um digestor; (b) examinar os pedaços de madeira na medida em que eles são transportados, para determinar a espécie deles e o teor de umidade, por meio do aquecimento dos pedaços de madeira e perceber o teor de umidade e caracterizar as espécies dos pedaços de madeira por assinaturas das espécies obtidas por um espectrómetro de mobilidade de íon, e (c) regular o fluxo de vapor e de produtos químicos fornecido ao digestor."ONLINE PULP DIGESTOR CONTROL SYSTEM". The present invention relates to a novel online pulp digester control system. More particularly, this invention relates to a new control system that employs real-time measurements from ion mobility spectrometry to automatically and rapidly determine the physical and chemical characteristics of the wood supply feed being fed. in a pulp digester and thus maximize process efficiency, minimize chemical and energy consumption and improve product uniformity. An intelligent control system that utilizes moisture content and wood chip species in a pulping process comprises: (a) transporting wood chips from a wood chip storage facility to a digester; (b) examine the pieces of wood as they are transported to determine their species and moisture content by heating the pieces of wood and to understand the moisture content and characterize the species of the wood pieces by species signatures obtained by an ion mobility spectrometer, and (c) regulate the flow of steam and chemicals supplied to the digester.

BR0213386-5A 2002-08-16 2002-08-16 Pulp Digester Control System Online BR0213386A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CA2002/001272 WO2004016850A1 (en) 2002-08-16 2002-08-16 On-line pulp digester control system

Publications (1)

Publication Number Publication Date
BR0213386A true BR0213386A (en) 2005-02-01

Family

ID=31722325

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0213386-5A BR0213386A (en) 2002-08-16 2002-08-16 Pulp Digester Control System Online

Country Status (4)

Country Link
AU (1) AU2002322908A1 (en)
BR (1) BR0213386A (en)
CA (1) CA2495713A1 (en)
WO (1) WO2004016850A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR112013015837A2 (en) * 2010-12-22 2018-05-15 Stora Enso Oyj method for controlling a pulping process from a forward feed manner.
CN102605663A (en) * 2012-03-20 2012-07-25 湖南骏泰浆纸有限责任公司 Wood chip flow monitoring system and stable pulping continuous digesting method
CN104345086B (en) 2013-08-01 2017-02-08 同方威视技术股份有限公司 Rapid detection method of volatile substances of very high concern in textile

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU914692A1 (en) * 1980-01-02 1982-03-23 Vn Proizv Ob Celljuloszno Wood chip digestion process control method
US5071771A (en) * 1989-12-04 1991-12-10 Forintek Canada Corporation Identification of wood species
US6447639B1 (en) * 2001-03-05 2002-09-10 Sita Ruby Warren Process for controlling a digester using real time measurement of moisture content and species of wood

Also Published As

Publication number Publication date
AU2002322908A1 (en) 2004-03-03
CA2495713A1 (en) 2004-02-26
WO2004016850A1 (en) 2004-02-26

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Legal Events

Date Code Title Description
B11A Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]