SE9503918D0 - Processes and apparatus for controlling drying processes - Google Patents

Processes and apparatus for controlling drying processes

Info

Publication number
SE9503918D0
SE9503918D0 SE9503918A SE9503918A SE9503918D0 SE 9503918 D0 SE9503918 D0 SE 9503918D0 SE 9503918 A SE9503918 A SE 9503918A SE 9503918 A SE9503918 A SE 9503918A SE 9503918 D0 SE9503918 D0 SE 9503918D0
Authority
SE
Sweden
Prior art keywords
drying chamber
processes
main drying
weighing device
sample pieces
Prior art date
Application number
SE9503918A
Other languages
Swedish (sv)
Other versions
SE507638C2 (en
SE9503918L (en
Inventor
Arne Jovik
Original Assignee
Alfsen & Gunderson
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 Alfsen & Gunderson filed Critical Alfsen & Gunderson
Publication of SE9503918D0 publication Critical patent/SE9503918D0/en
Publication of SE9503918L publication Critical patent/SE9503918L/en
Publication of SE507638C2 publication Critical patent/SE507638C2/en

Links

Classifications

    • 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
    • F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
    • F26B21/04—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside the drying enclosure
    • 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
    • F26B25/225—Controlling the drying process in dependence on liquid content of solid materials or objects by repeated or continuous weighing of the material or a sample thereof
    • 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
    • F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
    • F26B21/022—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure with provisions for changing the drying gas flow pattern, e.g. by reversing gas flow, by moving the materials or objects through subsequent compartments, at least two of which have a different direction of gas flow
    • F26B21/026—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure with provisions for changing the drying gas flow pattern, e.g. by reversing gas flow, by moving the materials or objects through subsequent compartments, at least two of which have a different direction of gas flow by reversing fan rotation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
    • F26B3/04—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour circulating over or surrounding the materials or objects to be dried
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B9/00—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards
    • F26B9/06—Machines or apparatus for drying solid materials or objects at rest or with only local agitation; Domestic airing cupboards in stationary drums or chambers

Abstract

An air channel (11) for a part flow from the main drying chamber is connected to a model drying chamber (10) and the air flow is fed back to the main drying chamber. In the air channel is arranged a damper (14) for regulating air speed. In or in connection with the model drying chamber is arranged a weighing device (13) for weighing continuously a limited number of sample pieces (12) taken out of the product in the main drying chamber. The weighing device is connected to a computer for controll or/or monitoring the drying process in the main drying chamber. The computer, dependent upon signals from the weighing device and the commencement moisture content of the sample pieces, is in a position to calculate the moisture content of the sample pieces and changes in it for control and/or monitoring of the drying process in the main drying chamber.
SE9503918A 1994-12-05 1995-11-13 Equipment for controlling timber drying processes SE507638C2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO944679A NO300025B1 (en) 1994-12-05 1994-12-05 Process and apparatus for controlling drying processes

Publications (3)

Publication Number Publication Date
SE9503918D0 true SE9503918D0 (en) 1995-11-13
SE9503918L SE9503918L (en) 1996-06-06
SE507638C2 SE507638C2 (en) 1998-06-29

Family

ID=19897712

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9503918A SE507638C2 (en) 1994-12-05 1995-11-13 Equipment for controlling timber drying processes

Country Status (2)

Country Link
NO (1) NO300025B1 (en)
SE (1) SE507638C2 (en)

Also Published As

Publication number Publication date
SE507638C2 (en) 1998-06-29
NO944679L (en) 1996-06-06
NO944679D0 (en) 1994-12-05
NO300025B1 (en) 1997-03-17
SE9503918L (en) 1996-06-06

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Legal Events

Date Code Title Description
NUG Patent has lapsed