公开(公告)号：US20060230879A1

公开(公告)日：2006-10-19

申请号：US10540352

申请日：2003-12-10

申请人： Michael Stroder ,  Nikoka Anastasijevic ,  Marcus Runkel

发明人： Michael Stroder ,  Nikoka Anastasijevic ,  Marcus Runkel

IPC分类号： C21B11/00 ,  C21B7/00 ,  C22B1/00 ,  C21B13/00

CPC分类号： C22B15/0013 ,  B01J8/1809 ,  B01J8/1836 ,  B01J8/1854 ,  B01J8/26 ,  B01J8/28 ,  B01J2208/00548 ,  B01J2208/00725 ,  C22B1/10 ,  F27B15/02 ,  F27B15/08

摘要： The invention relates to a method and a plant for the heat treatment of sulfidic ores, in which solids are heated to a temperature of approximately 450 to 1500° C. in a fluidized bed reactor (1). In order to improve the energy utilization, it is proposed to introduce a first gas or gas mixture from below through a gas supply tube (3) into a mixing chamber (7) of the reactor (1), the gas supply tube (3) being at least partly surrounded by a stationary annular fluidized bed (35) which is fluidized by supplying fluidizing gas. The gas velocities of the first gas or gas mixture as well as of the fluidizing gas for the annular fluidized bed (35) are adjusted such that the particle Froude numbers in the gas supply tube (3) are between 1 and 100, in the annular fluidized bed (35) between 0.02 and 2 and in the mixing chamber (7) between 0.3 and 30.

摘要翻译： 本发明涉及一种用于热处理硫化矿石的方法和设备，其中固体在流化床反应器（1）中加热至约450至1500℃的温度。 为了提高能量利用率，建议从下方通过气体供给管（3）将第一气体或气体混合物引入反应器（1）的混合室（7），气体供给管（3） 至少部分地被固定的环形流化床（35）包围，所述静止环形流化床通过供应流化气体而被流化。 调节第一气体或气体混合物以及用于环形流化床（35）的流化气体的气体速度，使得气体供应管（3）中的微粒弗劳德数在1和100之间，在环形 流化床（35）在0.02和2之间，并且在混合室（7）中在0.3和30之间。