Apparatus and method for manufacturing mineral wool as well as a mineral wool product

Abstract

The invention relates to an apparatus for manufacturing mineral wool. The apparatus includes means () for producing molten mineral material, at least one fiberizing device () for forming fibres, into which fiberizing device the molten mineral material is fed () and by which fibres () are formed. The fiberizing device () comprises, rotationally arranged around a vertical axis (), at least one fiberizing plate () having a vertical peripheral edge, into which are formed numerous small-sized holes (), through which the molten material is led by centrifugal force to form fibres (). Into the fiberizing device () are arranged elements to produce a vertical flow of blowing medium () to be led around the fiberizing plate (), the flow causing the fibres () to turn downwards and, at the same time, to thin. Downstream the fiberizing device () is arranged a collection device (), into which the formed fibres () are led and collected into a mat-like material. In connection with said at least one fiberizing plate () is arranged a substantially horizontal, relatively narrow channel (), through which the fibres () are brought into the chamber space () of the collection device (). The invention further relates to a method for manufacturing mineral wool and a mineral wool product manufactured by the method.