公开(公告)号：EP0100942A3

公开(公告)日：1985-12-18

申请号：EP83107186

申请日：1983-07-22

申请人： JIM WALTER CORPORATION

发明人： Koenig, Alan R. ,  Moon, Edward L.

IPC分类号： B07B09/00 ,  C03B37/10 ,  D01G09/00

CPC分类号： D01G9/00 ,  B07B9/00 ,  C03B37/10 ,  Y02P40/57

摘要： An apparatus and dry method for de-shotting shot-containing 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.