Method and device for producing a mineral wool nonwoven fabric

Details Method and device for producing a mineral wool nonwoven fabric Method and device for producing a mineral wool nonwoven fabric

D - Textiles, Paper

04

H

D04H 1/70 (2006.01) C03B 37/01 (2006.01) D04H 1/00 (2006.01) D04H 13/00 (2006.01)

Patent

CA 2338614

A device for producing a mineral wool nonwoven fabric, comprising a drop shaft (10) and fibrillation devices (26a, 26b) in addition to a conveyor device (16) for the conveyance of mineral wool nonwoven fabric. A device is also provided to separate the strip of insulating material into a first section (38) and a second section (40) in a longitudinal direction. A conveyor device (46) directs the first section (38) in such a way that it is placed on the second section (40). Said device enables a mineral fibre product to be created with a density distribution that is such that the upper area (24a) and the lower area (24b) have a higher density than the area (56) located inbetween.

L'invention concerne un dispositif permettant de fabriquer une nappe de laine minérale, qui comprend un puits à gravité (10) pourvu de dispositifs de fibrillation (26a, 26b) et un dispositif de transport (16) destiné au transport de ladite nappe. Un dispositif divise longitudinalement la bande de matériau isolant en une première section (38) et une seconde section (40), et un dispositif de transport (46) dirige la première section (38) de façon à la poser sur la première (40). Ce dispositif permet de fabriquer un produit en fibres minérales dans lequel la distribution de la densité est telle que la couche supérieure (24a) et la couche inférieure (24b) sont plus denses que la couche intermédiaire (56).

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