Method and device for the wet gluing of wood fibres

US9114577B2 · kind B2 · utility

Assignee

• Kronotec AG · CH

Inventors

• Daniel Sperlich · Meyenburg, DE
• Peter Droege · Wittenberge, DE

Key dates

• Filing date: Aug 30, 2011
• Grant date: Aug 25, 2015
• Expiry date: Nov 7, 2031

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B27N3/12
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A method for wet gluing of wood fibers, which have been defibrated in a refiner from wood comminuted into chips, in order that these chips, following wet gluing in a gluing zone, can be dried in a dryer, then spread, in a spreading arrangement, to form a fiber mat and pressed, in a hot press, to form a wood-material panel. The wood fibers are transported into the gluing zone, within a conveying tube, in a stream of saturated steam. In order to calm the fiber stream, the conveying tube widens at the start of the gluing zone, within which a plurality of gluing nozzles are situated, as a result of which the speed of the fiber stream is reduced before the first gluing nozzle has been reached, the fibers in the calmed fiber stream are glued with adhesive by the gluing nozzles, and then are fed to the dryer.