DE2353775B2 - METHOD OF DRYING VENEERS AND SIMILAR GOODS - Google Patents

METHOD OF DRYING VENEERS AND SIMILAR GOODS

Info

Publication number
DE2353775B2
DE2353775B2 DE19732353775 DE2353775A DE2353775B2 DE 2353775 B2 DE2353775 B2 DE 2353775B2 DE 19732353775 DE19732353775 DE 19732353775 DE 2353775 A DE2353775 A DE 2353775A DE 2353775 B2 DE2353775 B2 DE 2353775B2
Authority
DE
Germany
Prior art keywords
dryer
drying
continuously
flow
partial
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
DE19732353775
Other languages
German (de)
Other versions
DE2353775C3 (en
DE2353775A1 (en
Inventor
Friedrich 6431 Rotensee Roos
Original Assignee
Büttner-Schilde-Haas AG, 4150 Krefeld
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 Büttner-Schilde-Haas AG, 4150 Krefeld filed Critical Büttner-Schilde-Haas AG, 4150 Krefeld
Priority to DE19732353775 priority Critical patent/DE2353775C3/en
Priority claimed from DE19732353775 external-priority patent/DE2353775C3/en
Publication of DE2353775A1 publication Critical patent/DE2353775A1/en
Publication of DE2353775B2 publication Critical patent/DE2353775B2/en
Application granted granted Critical
Publication of DE2353775C3 publication Critical patent/DE2353775C3/en
Expired legal-status Critical Current

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

Landscapes

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

Description

Claims (1)

Patentanspruch:Claim: Verfahren zum Trocknen von Furnieren, Gipsplatten und ähnlichem Gut von wechselnder Anfangsfeuchte, wobei die Abluftmenge nach Maßgabe des gewünschten Klimazustandes im Trockner kontinuierlich geregelt wird, dadurch gekennzeichnet, daß als Regelgröße der Meßwert der beim Kühlen eines dem Trockner fortlaufend entnommenen Trocknungsgasteilstromes abgegebenen Kondensationswärme verwendet wird, in dem kontinuierlich die vom Gasteilstrom mit einem Kühlmittelstrom ausgetauschte Wärmeleistung ermittelt und der Anteil fühlbarer Wärme im wesentlichen durch Messung der Temperaturdifferenz, um die der Gasteilstrom abgekühlt wird, automatisch abgezogen wird.Process for drying veneers, plasterboard and similar goods of changing Initial humidity, the amount of exhaust air depending on the desired climatic condition in The dryer is continuously controlled, characterized in that the controlled variable is the Measured value of the drying gas partial flow continuously withdrawn from the dryer during cooling given off condensation heat is used, in the continuous with the partial gas flow with a coolant flow exchanged heat output is determined and the proportion of sensible heat in the essentially by measuring the temperature difference by which the partial gas flow is cooled, is automatically deducted. 2020th Die Erfindung betrifft ein Verfahren zum Trocknen von Furnieren, Gipsplatten und ähnlichem Gut von wechselnder Anfangsfeuchte, wobei die Abluftmenge nach Maßgabe des gewünschten Klimazustandes im Trockner kontinuierlich geregelt wird.The invention relates to a method for drying veneers, plasterboards and the like changing initial humidity, the amount of exhaust air depending on the desired climatic condition in Dryer is continuously regulated. Ein solches Verfahren, jedoch zum Trocknen von Schnittholz in einem Kammertrockner, ist durch die DT-OS 20 55 390 bekanntgeworden. Zur Regelung wird eine Einrichtung benutzt, die auf Temperatur- und Feuchtigkeits-Signale reagiert. Signalgeber sind ein Trockentemperaturfühler und ein Naßtemperaturfühler, die sich innerhalb der Trocknungskammer befinden. Derartige Naßtemperaturfühler arbeiten bei höheren Temperaturen ungenau und sind daher für eine exakte Klimaregelung, wie sie vor allem bei der Trocknung von Edelfurnieren unerläßlich ist, nicht geeignet.One such method, however, for drying lumber in a chamber dryer, is by the DT-OS 20 55 390 became known. A device is used for regulation, which is based on temperature and Moisture signals reacts. Signal transmitters are a dry temperature sensor and a wet temperature sensor, which are located inside the drying chamber. Such wet temperature sensors work at higher Temperatures are imprecise and are therefore essential for precise climate control, as is the case especially when drying Fine veneer is essential, not suitable. Der Erfindung liegt die Aufgabe zugrunde, eine unbedingt verläßliche und genaue Klimagrundeinstellung und Einhaltung des gewünschten Klimazustandes im Trockner oder in den einzelnen Zonen des Trockners zu erzielen.The invention is based on the object of providing an absolutely reliable and precise basic climate setting and maintaining the desired climatic condition in the dryer or in the individual zones of the dryer to achieve. Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß als Regelgröße der Meßwert der beim Kühlen eines dem Trockner fortlaufend entnommenen Trocknungsgasteilstromes abgegebenen Kondensationswärme verwendet wird, in dem kontinuierlich die vom Gasteilstrom und einem Kühlmittelstrom ausgetauschte Wärmeleistung ermittelt und der Anteil fühlbarer Wärme im wesentlichen durch Messung der Temperaturdifferenz, um die der Gasteilstrom abgekühlt wird, automatisch abgezogen wird.According to the invention, this object is achieved in that the measured value when cooling a The condensation heat given off continuously from the dryer gas stream is used in which the heat output exchanged continuously by the partial gas flow and a coolant flow determined and the proportion of sensible heat essentially by measuring the temperature difference, by which the partial gas flow is cooled, is automatically withdrawn. Es ist zweckmäßig, den Trocknungsgasteilstrom dem Trockner im Bereich der Abluftöffnung zu entnehmen, wobei es sich versteht, daß bei zonenweiser Klimaregelung jeder Zone eine Abluftöffnung zuzuordnen ist.It is advisable to take the drying gas partial flow from the dryer in the area of the exhaust air opening, It goes without saying that in the case of zone-wise climate control, an exhaust air opening is to be assigned to each zone. Liegt die Feuchte vor dem Einbringen des Trocknungsgutes in den Trockner unter ihrem Sollwert oder sinkt sie während der Trocknung unter diesen Sollwert, so kann ein- oder mehrmals kurzzeitig Dampf eingesprüht werden. Auch dies erfolgt automatisch in Abhängigkeit von der beim Kühlen des Trocknungsgasteilstromes ermittelten Kondensationswärme.If the humidity is below its setpoint before the items to be dried are placed in the dryer, or If it falls below this setpoint during drying, steam can be used for a short time once or several times be sprayed. This also takes place automatically as a function of the cooling of the drying gas partial flow determined heat of condensation.
DE19732353775 1973-10-26 Process for drying veneers and similar goods Expired DE2353775C3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19732353775 DE2353775C3 (en) 1973-10-26 Process for drying veneers and similar goods

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732353775 DE2353775C3 (en) 1973-10-26 Process for drying veneers and similar goods

Publications (3)

Publication Number Publication Date
DE2353775A1 DE2353775A1 (en) 1974-11-14
DE2353775B2 true DE2353775B2 (en) 1977-07-14
DE2353775C3 DE2353775C3 (en) 1978-02-23

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Also Published As

Publication number Publication date
DE2353775A1 (en) 1974-11-14

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
EGA New person/name/address of the applicant
8320 Willingness to grant licences declared (paragraph 23)
8339 Ceased/non-payment of the annual fee