公开(公告)号：US3691644A

公开(公告)日：1972-09-19

申请号：US3691644D

申请日：1971-01-12

申请人： BUEHLER AG GEB

发明人： SCHNITZER HANS

IPC分类号： F26B3/08 ,  F28C3/16 ,  F28F27/02

CPC分类号： F26B3/082 ,  F26B3/08 ,  F28C3/16 ,  F28F27/02

摘要： A device for the continuous thermal treatment of a granular material by means of a gas comprises a container having an inlet for the granular material which opens into a chamber arranged above a stationary gas-permeable material support which may be in the form of an inclined perforated wall. The container includes walls around the support, one of which at least includes a material outlet, for example, which is arranged at the lower end of the support. A gas is directed upwardly against the support at a plurality of separated areas in a flow stream which is regulated to maintain the material in a homogeneous loose fluid bed above the support. Means are provided at the outlet for effecting an infinitely vertically adjustable overflow. A throttling device is arranged in the flow paths of the fluid at a location before the support in order to selectively vary the velocity of gas flowing through the support and along the feed travel of the fluid bed of granular material. In accordance with the method of the invention, the granular material is directed into the chamber above the stationary support and the overflow to the outlet is set at a predetermined level. Thereafter, a treatment gas is directed through at least two distinct paths alternately upwardly through separate divided portions of this support. The gas flow is controlled so that there is an alternate flow first to one side and then to another side of the fluid bed and thence outwardly through the outlet along with the granular material which moves over the bed level.

摘要翻译： 用于通过气体连续热处理颗粒材料的装置包括具有用于颗粒材料的入口的容器，所述入口通向通向静止的气体可渗透材料支撑件上方的腔室，所述腔室可以是倾斜穿孔 壁。 容器包括围绕支撑件的壁，其中的一个至少包括材料出口，例如布置在支撑件的下端。 在流动流中的多个分离区域处将气体向上引导抵靠支撑件，流动流被调节以将材料保持在支撑件上方的均匀的松散流体床中。 在出口处设置有用于实现无限垂直可调溢流的装置。 节流装置布置在流体在支撑件之前的位置的流动路径中，以便选择性地改变流过支撑件的气体的速度并且沿颗粒材料的流化床的进给行进。 根据本发明的方法，粒状材料被引导到固定支架上方的腔室中，并且到出口的溢流被设定在预定水平。 此后，处理气体通过至少两个不同的路径被交替地引导通过该支撑体的分开的分开的部分。 气流被控制，使得首先流到流化床的另一侧，然后与在床层上移动的颗粒材料一起通过出口向外流动。