device for the production of mineral fibres from a silikatischen melt

摘要

Machines for the production of mineral fibres from a silicate melt usually have several rotating rollers on to which the melt is fed. In order to design a machine in which the proportion of non-fibrous components in the product is significantly reduced, the fibre length and diameter distribution optimized and the fibre dwell time in the fibre-formation zone shortened, the invention proposes that the machine is fitted with a central large-diameter distributor roller with several small-diameter fibre-forming rollers disposed around it and close to it, the fibre-forming rollers turning in the opposite direction to the distributor roller so that those parts of the surfaces of the fibre-forming rollers closest to the surface of the distributor roller move in the same direction. Located above the crown of the distributor roller is a vertical melt-discharge device with an outlet aperture which matches the length of the distributor roller.