公开(公告)号：US3840337A

公开(公告)日：1974-10-08

申请号：US36804373

申请日：1973-06-07

申请人： HEISE C

发明人： HEISE C

IPC分类号： F26B17/32 ,  F23G5/20 ,  F26B11/04 ,  F27B7/10 ,  F27B7/14

CPC分类号： F26B11/0445

摘要： A rotatable drying drum is provided with a drum wall having insertions and a combustion means for natural or liquid gas so that stone minerals can be dried and heated for the preparation of bituminous building materials. The combustion means includes a plurality of individual burners which are located in an end region of the drying drum.