Apparatus and method for producing shot-free mineral wool

Details Apparatus and method for producing shot-free mineral wool Apparatus and method for producing shot-free mineral wool

B - Operations, Transporting

07

B

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B07B 9/02 (2006.01) B07B 9/00 (2006.01) C03B 37/10 (2006.01) D01G 9/00 (2006.01)

Patent

CA 1207279

APPARATUS AND METHOD FOR PRODUCING SHOT-FREE MINERAL WOOL Abstract An apparatus and dry method for de-shotting shot-con- taining mineral wool fibers wherein the fibers are treated in a granulator to compact them into entangled nodules, and the nodules are passed through an air classifier to open up and de-shot them. In a preferred embodiment, a felted layer of mineral wool is subjected to a first granulation step to divide the layer into a multiplicity of lightly compacted nodules which are then partially de-shotted, and the partially de-shotted nodules are subjected to a second granulation step to more tightly compact the nodules before they are introduced into the air classifier.

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