US 2015/0107749 A1 · Process and Device for Gluing Dried Fibers Designated for the Production of Fiberboards

Abstract

The present invention provides in a process for obtaining glued dried fibers suitable for the production of fiberboards, characterized by the following steps: carrying dried fibers in an air stream for the removal of high density contaminants from the dried fibers by means of gravity, and gluing said dried fibers. The invention thereto also provides a modified air density separator comprising one or more injection means for a gluing composition. The invention also relates to a fiber board manufacturing plant comprising an air density separator according to an embodiment of the invention.

Claims15

Dependent claims

Air density separator (64) for obtaining glued fibers suitable for fiber board manufacture, comprising

a hollow duct (65) having an inlet opening at a first end, an outlet opening at a second end opposed to said first end and a wall providing said hollow duct,
a source of moving air directed through said duct for the transportation of said fibers from said inlet opening to said outlet opening and separating off contaminants by means of density differences,
one or more gluing means (80, 80′, 80″) provided in said wall for introducing a gluing composition into said hollow duct and onto said fibers.

Dependencies are inferred from the claim text.

Facts

Application

14/057,399Filed 18 Oct 2013

Published

23 Apr 2015

Term ends

Not estimatedThe source records don’t support an estimate.

Classification15 codes

D21J 3/00
Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds
B05C 3/00
Apparatus in which the work is brought into contact with a bulk
B05D 7/24
Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying…
B07B 9/02
Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g.…:…

Process and Device for Gluing Dried Fibers Designated for the Production of Fiberboards

Life of this patent

Process and Device for Gluing Dried Fibers Designated for the Production of Fiberboards

Life of this patent

Abstract

Claims15