Patent ID: 6675445
Filing Date: 2004-01-13
Classification: C03B,D04H,Y02P,Y10T

Abstract:
An apparatus for producing a mineral wool nonwoven fabric (52) comprising:a shroud (10), comprising at least one fiberizing means (26, 26b); and a conveyor means (16) for transporting the produced mineral wool nonwoven fabric (24); said conveyor means being capable of guiding a first blanket section (38) so that said first blanket section (38) is deposited on a second blanket section (40) to produce a secondary nonwoven (52); the conveying distance of said first blanket section (38) being unequal to the conveying distance of said second blanket section (40), wherein a device (34) is provided for slitting said produced mineral wool nonwoven fabric in a longitudinal direction into the first blanket section (38) and the second blanket section (40); said conveyor means including a conveyor portion (46, 48, 58) comprising an inverting pulley (46) about which said first blanket section (38) is guidable; said first blanket section (38) being inverted by said inverting pulley so that the underside of said first blanket section (38) is located upwards, the conveyor portion at the inverting pulley being of a first width; the shroud (10) has a width at least twice the first width; and each of said at least one fiberizing means (26a, 26b) produces a mineral wool nonwoven fabric (24) forming two layers in the secondary nonwoven (52).