EP1128145A3 - Process and apparatus for drying wood fibres - Google Patents

Process and apparatus for drying wood fibres Download PDF

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Publication number
EP1128145A3
EP1128145A3 EP20010102539 EP01102539A EP1128145A3 EP 1128145 A3 EP1128145 A3 EP 1128145A3 EP 20010102539 EP20010102539 EP 20010102539 EP 01102539 A EP01102539 A EP 01102539A EP 1128145 A3 EP1128145 A3 EP 1128145A3
Authority
EP
Grant status
Application
Patent type
Prior art keywords
drying zone
hot gas
air
apparatus
process
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.)
Withdrawn
Application number
EP20010102539
Other languages
German (de)
French (fr)
Other versions
EP1128145A2 (en )
Inventor
Marco Becker
Udo Herzog
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.)
LBE Feuerungstechnik GmbH
Original Assignee
LBE Feuerungstechnik GmbH
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

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/06Controlling, e.g. regulating, parameters of gas supply
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/02Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
    • F26B21/04Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside the drying enclosure
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B2210/00Drying processes and machines for solid objects characterised by the specific requirements of the drying good
    • F26B2210/16Wood, e.g. lumber, timber

Abstract

Die Holzfasern werden durch eine Trocknungszone hindurchgefördert, durch die auch ein Heißgasstrom hindurchgeführt wird. The wood fibers are conveyed through a drying zone through which a hot gas stream is passed. Stromab der Trocknungszone wird deren HeißgasKlima erfaßt, und zwar durch kontinuierliche Messung der Temperatur und der Feuchte. Downstream of the drying zone is detected whose hot gas air, by continuous measurement of the temperature and the humidity. Sobald sich die Betriebsparameter der Trocknungszone ändern, ändert sich auch das Klima in der Trocknungszone. Once the operating parameters of the drying zone change, also the air in the drying zone changes. Die Heißgastemperatur stromauf der Trocknungszone wird daraufhin derart nachgeregelt, daß sich in der Trocknungszone ein Klima einstellt, welches in der vorgegebenen Verweilzeit der Holzfasern eine Erzielung der vorgegebenen Faserfeuchte gewährleistet. The hot gas temperature upstream of the drying zone is then adjusted such that an air is established in the drying zone, which ensures achievement of the predetermined fiber moisture in the predetermined dwell time of the wood fibers. Ein Teilstrom des aus der Trocknungszone austretenden, brüdenbeladenen Heißgases wird stromauf der Trocknungszone rezirkuliert. A partial flow of the exiting from the drying zone, brüdenbeladenen hot gas is recirculated upstream of the drying zone.
EP20010102539 2000-02-24 2001-02-06 Process and apparatus for drying wood fibres Withdrawn EP1128145A3 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE10008643 2000-02-24
DE2000108643 DE10008643A1 (en) 2000-02-24 2000-02-24 Method and apparatus for drying wood fibers

Publications (2)

Publication Number Publication Date
EP1128145A2 true EP1128145A2 (en) 2001-08-29
EP1128145A3 true true EP1128145A3 (en) 2003-10-29

Family

ID=7632232

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20010102539 Withdrawn EP1128145A3 (en) 2000-02-24 2001-02-06 Process and apparatus for drying wood fibres

Country Status (2)

Country Link
EP (1) EP1128145A3 (en)
DE (1) DE10008643A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10221367B4 (en) * 2002-05-13 2006-05-11 Bankwitz, Robert, Dr. Pneumatic spin dryer

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3434222A (en) * 1966-08-22 1969-03-25 Svenska Flaektfabriken Ab Method and an apparatus for the drying of wood in a channel
US3801264A (en) * 1972-04-24 1974-04-02 Heil Co Dehydrating system with exhaust gas recycling
DE4023518A1 (en) * 1990-07-24 1992-03-05 Fritz Egger Gmbh Method and system for drying moist, well
EP0743498A2 (en) * 1995-05-16 1996-11-20 Andritz-Patentverwaltungs-Gesellschaft m.b.H. Process for drying moist materials,in particular wood fibres
DE19606472C1 (en) * 1996-02-21 1997-07-03 Fritz Egger Ges M B H & Co Method of attaining required residual humidity of wood fibres for throughflow drying process
DE19954234A1 (en) * 1998-12-23 2000-06-29 Voest Alpine Ind Anlagen Forced convection drying of bulk solids uses a mixed hot and cold gas feed, and is suitable for drying of powdered coal, ores , and granular plastics

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2643497A1 (en) * 1976-09-23 1978-04-06 Thorn Domestic Appliances Ltd Air drier with chamber for drying objects - has sensors detecting chamber outlet and ambient air temperature for regulating heat supply
DE3529202C1 (en) * 1985-08-14 1986-09-11 Thomas Reitmeier Hop drying kiln
US5603168A (en) * 1994-11-30 1997-02-18 The Coe Manufacturing Company Method and apparatus for controlling a dryer

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3434222A (en) * 1966-08-22 1969-03-25 Svenska Flaektfabriken Ab Method and an apparatus for the drying of wood in a channel
US3801264A (en) * 1972-04-24 1974-04-02 Heil Co Dehydrating system with exhaust gas recycling
DE4023518A1 (en) * 1990-07-24 1992-03-05 Fritz Egger Gmbh Method and system for drying moist, well
EP0743498A2 (en) * 1995-05-16 1996-11-20 Andritz-Patentverwaltungs-Gesellschaft m.b.H. Process for drying moist materials,in particular wood fibres
DE19606472C1 (en) * 1996-02-21 1997-07-03 Fritz Egger Ges M B H & Co Method of attaining required residual humidity of wood fibres for throughflow drying process
DE19954234A1 (en) * 1998-12-23 2000-06-29 Voest Alpine Ind Anlagen Forced convection drying of bulk solids uses a mixed hot and cold gas feed, and is suitable for drying of powdered coal, ores , and granular plastics

Also Published As

Publication number Publication date Type
EP1128145A2 (en) 2001-08-29 application
DE10008643A1 (en) 2001-08-30 application

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