Process for the production of a wood fiber insulation board or mats and wood fiber insulation boards or mats produced by this process

摘要

A process for the production of wood fiber insulation boards or mats, in which the wood fibers and binder fibers from bale openers via separate bale openers downstream weighing equipment uniformly introduced into the desired mixing ratio in a blow pipe and pneumatically fed through the blowpipe to a reservoir, from the reservoir to the fiber mixture a first conveyor belt are inflated to a Vorvlies under spatial orientation of the fibers, characterized in that on the formed Vorvlies a thermally activatable plastic granules consisting of recycled during recycling of plastic parts from the dual system granules evenly spread over the entire width, the Vorvlies am End of the first conveyor belt is shredded in a conventional manner and is inflated after mixing on a second conveyor belt in spatial alignment of the fibers, wherein the thickness of the obtained Ma Adjusted by the rotational speed of the second conveyor belt, the product thus obtained is transferred to a furnace belt and driven on this by the heating / cooling furnace in which the softening of the binder fiber and the plastic granules and thus an intimate bonding of the wood fibers, the final Thickness of the Holzfaserdämmstoffplatten mats of 3 to 350 mm, preferably 4 to 250 mm, achieved by calibration and / or compression, wherein the calibration and / or compression of the final thickness immediately follows the heating of the mat in the heating zone and after the cooling takes place, and wherein the bulk density of the wood fiber insulating panels is between 20 to 300 kg / m3.