EP 0312888 B1 19940119 - Drying plant for building panels.
Title (en)
Drying plant for building panels.
Title (de)
Trockneranlage für Bauplatten.
Title (fr)
Installation de séchage pour des panneaux de construction.
Publication
Application
Priority
DE 3735242 A 19871017
Abstract (en)
[origin: EP0312888A2] The invention is based on a drying plant for building panels, in particular for fibrous plaster panels or plaster panels containing chips, the panels being placed for drying on a conveyor belt and the water content contained in the panels being removed by supplying heat. In the known drying plants of the convection drier type, the drying process takes a very long time and the strength of the building panels suffers because the water content is removed very quickly on the panel surfaces in particular, as a result of which a disadvantageous dehydration takes place there. <??>According to the invention, the drying process is designed in two stages, there being provided for predrying a convection drier, after which there is connected, for post-drying, a high-frequency generator. As a result, a relatively fast drying process and, by the hydration of the surfaces in the drying process, increased strengths of the building panels are obtained. <IMAGE>
IPC 1-7
IPC 8 full level
F26B 3/34 (2006.01); F26B 15/18 (2006.01); F26B 23/08 (2006.01); F26B 25/22 (2006.01)
CPC (source: EP US)
F26B 3/343 (2013.01 - EP US); F26B 15/18 (2013.01 - EP US); F26B 25/22 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT SE
DOCDB simple family (publication)
EP 0312888 A2 19890426; EP 0312888 A3 19890628; EP 0312888 B1 19940119; DE 3735242 A1 19890427; DE 3735242 C2 19901220; DE 3887257 D1 19940303; FI 884762 A0 19881014; FI 884762 A 19890418; JP H01212886 A 19890825; US 4890394 A 19900102
DOCDB simple family (application)
EP 88116852 A 19881011; DE 3735242 A 19871017; DE 3887257 T 19881011; FI 884762 A 19881014; JP 26127188 A 19881017; US 25858088 A 19881017