Method and apparatus for preparing a melt for mineral fibre...

Details Method and apparatus for preparing a melt for mineral fibre... Method and apparatus for preparing a melt for mineral fibre...

C - Chemistry, Metallurgy

03

B

49/9

C03B 5/02 (2006.01) C03B 3/02 (2006.01) C03B 5/12 (2006.01) C03B 37/022 (2006.01)

Patent

CA 2006409

Abstract of the Disclosure Method of preparing a melt for mineral fibre production wherein a mixture of mineral fibre forming raw materials is introduced into a shaft furnace and is heated to melting temperature by means of a plasma gas stream formed in a plasma torch and wherein waste ma- terial from mineral fibre production is introduced into the plasma gas stream by means of rotatable screw conveyor mounted in a feed pipe and wherein the melt formed in the shaft furnace is discharged from the bottom of the furnace and is passed to a fiberizing appa- ratus in which it is converted into mineral fibres.

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