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2. 发明授权

US4003137A Method of drying wet powder 失效
标题翻译：湿粉干燥方法
公开(公告)号：US4003137A
公开(公告)日：1977-01-18
申请号：US510876
申请日：1974-10-01
申请人： Lars-Erik Bjorn , Mats Jurgen Martin Olsson
发明人： Lars-Erik Bjorn , Mats Jurgen Martin Olsson
IPC分类号： C06B21/00 , F26B9/10 , F26B21/04 , F26B21/06 , F26B3/14
CPC分类号： F26B21/06 , C06B21/0091 , F26B21/04 , F26B9/103
摘要： Method and apparatus for drying nitrocellulose powder. The wet powder with the liquid is admitted into the upper part of a frame comprising a pair of generally parallel spaced foraminous members which are inclined at an acute angle to the horizontal. The wet powder is admitted in sufficient quantity to substantially fill the space between the members. A stream of a drying gas is directed against the upper one of the members and the dried powder is received from between the spaced members at the bottom of the frame. The liquid is removed through the apertures in the lower one of the members. Preferably, the angle of inclination of the frame is between 5.degree. and 45.degree. to the horizontal. The velocity of the drying gas is selected such that, in conjunction with the angle of inclination of the frame, the powder is spread as a substantially even layer over the lower one of the frame members throughout the drying of the powder.
摘要翻译：硝化纤维素粉末干燥方法及装置具有液体的湿粉末被允许进入框架的上部，该框架包括一对大致平行间隔的多孔构件，其倾斜成与水平面呈锐角。允许湿粉足够量以充分填充构件之间的空间。干燥气体流针对上部构件，并且干燥的粉末从框架底部的分隔构件之间接收。液体通过下部构件中的孔被去除。优选地，框架的倾斜角度与水平面成5°至45°。选择干燥气体的速度使得结合框架的倾斜角度，粉末在整个粉末的干燥过程中通过在下部框架构件上以基本均匀的层的形式扩散。

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