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公开(公告)号:US3625497A
公开(公告)日:1971-12-07
申请号:US3625497D
申请日:1969-07-28
CPC分类号: F27B1/005
摘要: Solids such as dolomite or magnesia are continuously roasted in a vertical furnace provided with an axial tube to cause the heating flame to pass through the center of the solids, the heating being effected by the combustion of dry fuel oil vapors preheated to 300* to 650* C.