SE9200776D0 - CONTROL SYSTEM FOR WORKING DRY - Google Patents
CONTROL SYSTEM FOR WORKING DRYInfo
- Publication number
- SE9200776D0 SE9200776D0 SE9200776A SE9200776A SE9200776D0 SE 9200776 D0 SE9200776 D0 SE 9200776D0 SE 9200776 A SE9200776 A SE 9200776A SE 9200776 A SE9200776 A SE 9200776A SE 9200776 D0 SE9200776 D0 SE 9200776D0
- Authority
- SE
- Sweden
- Prior art keywords
- drying process
- drying
- measurement data
- simulator
- basis
- Prior art date
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
- F26B21/10—Temperature; Pressure
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Drying Of Solid Materials (AREA)
Abstract
In the method the temperature (T) and the humidity (Rh) of the air passing through the lumber batch to be dried are controlled as the drying process makes progress. The progress of the drying process is regulated by means of a feedback-connected drying-formula simultator (23), by whose means the drying process is given new set values (S) continuously or at suitable intervals. Out of the drying process, measurement data (m) are passed to the drying-formula simulator (23). The drying process model stored in the simulator is adapted to the state of the drying process on the basis of the measurement data (m). In the method, an adaptive process model is applied, in which a certain parameter or certain parameters are allowed to remain variables, which is/are adapted in the correct direction on the basis of the measurement data (Rh.Tk.u) received from the process.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI911671A FI89744C (en) | 1991-04-08 | 1991-04-08 | Control system for wood dryer |
Publications (3)
Publication Number | Publication Date |
---|---|
SE9200776D0 true SE9200776D0 (en) | 1992-03-13 |
SE9200776L SE9200776L (en) | 1992-10-09 |
SE507015C2 SE507015C2 (en) | 1998-03-16 |
Family
ID=8532262
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE9200776A SE507015C2 (en) | 1991-04-08 | 1992-03-13 | Control system for wood dryer |
Country Status (3)
Country | Link |
---|---|
CA (1) | CA2063917A1 (en) |
FI (1) | FI89744C (en) |
SE (1) | SE507015C2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE538180C2 (en) * | 2013-11-18 | 2016-03-29 | Coldbay Ab | Method and system for drying wood in a drying room |
-
1991
- 1991-04-08 FI FI911671A patent/FI89744C/en active IP Right Grant
-
1992
- 1992-03-13 SE SE9200776A patent/SE507015C2/en not_active IP Right Cessation
- 1992-03-25 CA CA002063917A patent/CA2063917A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
FI89744C (en) | 1993-11-10 |
FI89744B (en) | 1993-07-30 |
SE507015C2 (en) | 1998-03-16 |
CA2063917A1 (en) | 1992-10-09 |
FI911671A (en) | 1992-10-09 |
SE9200776L (en) | 1992-10-09 |
FI911671A0 (en) | 1991-04-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |