EP1950516A3 - A method for adapting the requirement of drying air in wood driers - Google Patents

A method for adapting the requirement of drying air in wood driers Download PDF

Info

Publication number
EP1950516A3
EP1950516A3 EP08150319A EP08150319A EP1950516A3 EP 1950516 A3 EP1950516 A3 EP 1950516A3 EP 08150319 A EP08150319 A EP 08150319A EP 08150319 A EP08150319 A EP 08150319A EP 1950516 A3 EP1950516 A3 EP 1950516A3
Authority
EP
European Patent Office
Prior art keywords
wood
drying air
adapting
requirement
drying
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
EP08150319A
Other languages
German (de)
French (fr)
Other versions
EP1950516B1 (en
EP1950516A2 (en
Inventor
Kenneth SÖDERLUND
Robert Larsson
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.)
Valutec AB
Original Assignee
Valutec AB
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 Valutec AB filed Critical Valutec AB
Publication of EP1950516A2 publication Critical patent/EP1950516A2/en
Publication of EP1950516A3 publication Critical patent/EP1950516A3/en
Application granted granted Critical
Publication of EP1950516B1 publication Critical patent/EP1950516B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/22—Controlling the drying process in dependence on liquid content of solid materials or objects
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/06—Controlling, e.g. regulating, parameters of gas supply
    • F26B21/12—Velocity of flow; Quantity of flow, e.g. by varying fan speed, by modifying cross flow area
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B2210/00—Drying processes and machines for solid objects characterised by the specific requirements of the drying good
    • F26B2210/16—Wood, e.g. lumber, timber

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

The invention concerns a method for adapting the requirement for drying air in a wood dryer, whereby wood in the form of a package is placed into a drying chamber that is closed to the surrounding atmosphere and in which is maintained a water-containing atmosphere with a wet temperature, a dry temperature and the psychrometric difference that is associated with this by means of forced drying air that is caused to pass through the wood. In order to optimise the consumption of electricity during the drying process, the air speed of the forced drying air is regulated depending on the current water content of the wood or by a recorded reduction in the release of water from the wood, whereby monitoring of the current water content or the appearance of a reduced release of water takes place by measurements that are carried out during the drying process.
EP20080150319 2007-01-26 2008-01-16 A method for adapting the requirement of drying air in wood driers Active EP1950516B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0700200A SE0700200L (en) 2007-01-26 2007-01-26 Procedure for adapting the drying air requirement to a wood dryer

Publications (3)

Publication Number Publication Date
EP1950516A2 EP1950516A2 (en) 2008-07-30
EP1950516A3 true EP1950516A3 (en) 2012-01-18
EP1950516B1 EP1950516B1 (en) 2012-12-19

Family

ID=39345430

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080150319 Active EP1950516B1 (en) 2007-01-26 2008-01-16 A method for adapting the requirement of drying air in wood driers

Country Status (3)

Country Link
EP (1) EP1950516B1 (en)
RU (1) RU2451254C2 (en)
SE (1) SE0700200L (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104515364B (en) * 2013-12-25 2017-02-08 柳州林道轻型木结构制造有限公司 China fir drying method
CN105004172A (en) * 2015-07-14 2015-10-28 苏州赛弗尔机械有限公司 Bypass type simple adsorption dryer with variable air volume
AT16621U3 (en) * 2019-10-07 2020-12-15 Franz Schlatte Method and device for drying items to be dried

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4953298A (en) * 1989-02-24 1990-09-04 Wagner Electronic Products, Inc. Kiln controller
US5325604A (en) * 1992-12-17 1994-07-05 The University Of Tennessee Research Corporation Automatic control system for wood drying kiln
WO1997008504A1 (en) * 1995-08-14 1997-03-06 Utec Sm Ab Method for drying wood
US5775003A (en) * 1996-05-24 1998-07-07 U.S. Natural Resources, Inc. Portable sensor for dry kiln sampling
EP0922919A1 (en) * 1997-12-09 1999-06-16 Stellac Oy Method for controlling a gas circulation

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3510956A (en) * 1967-11-15 1970-05-12 Gann Apparateund Maschinenbau Method for drying wood shavings
SU866368A1 (en) * 1977-12-26 1981-09-23 Всесоюзный Научно-Исследовательский И Проектный Институт "Теплопроект" Method of regulating article-drying process
SU817428A1 (en) * 1978-01-06 1981-03-30 Государственный Научно-Исследовательскийинститут Строительных Материалови Изделий Method of drying shrinkable articles
JP3320057B2 (en) * 2000-03-15 2002-09-03 鋭次 足立 Wood drying method and drying equipment
RU2228499C2 (en) * 2002-06-11 2004-05-10 Сафразьян Игорь Гурьевич Method and device for drying of lumbers

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4953298A (en) * 1989-02-24 1990-09-04 Wagner Electronic Products, Inc. Kiln controller
US5325604A (en) * 1992-12-17 1994-07-05 The University Of Tennessee Research Corporation Automatic control system for wood drying kiln
WO1997008504A1 (en) * 1995-08-14 1997-03-06 Utec Sm Ab Method for drying wood
US5775003A (en) * 1996-05-24 1998-07-07 U.S. Natural Resources, Inc. Portable sensor for dry kiln sampling
EP0922919A1 (en) * 1997-12-09 1999-06-16 Stellac Oy Method for controlling a gas circulation

Also Published As

Publication number Publication date
EP1950516B1 (en) 2012-12-19
RU2451254C2 (en) 2012-05-20
EP1950516A2 (en) 2008-07-30
RU2008102997A (en) 2009-07-27
SE0700200L (en) 2008-07-27

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