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Abstract

An apparatus for manufacturing mineral wool includes means for producing molten mineral material, and a fiberizing device for forming fibers, into which fiberizing device the molten mineral material is fed and by which fibers are formed. The fiberizing device has, rotationally arranged around a vertical axis, at least one fiberizing plate with a vertical peripheral edge, into which are formed numerous small-sized holes, through which the molten material is led by centrifugal force to form fibers. 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 fibers to turn downwards and, at the same time, to thin. Downstream the fiberizing device is arranged a collection device, into which the formed fibers 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 fibers are brought into the chamber space of the collection device. A method for manufacturing mineral wool and a mineral wool product manufactured by the method are also disclosed.

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First Claim