公开(公告)号：US5294298A

公开(公告)日：1994-03-15

申请号：US953094

申请日：1992-09-29

申请人： Munetoshi Maesaka ,  Takashi Itoh ,  Shizuo Aishima ,  Masaaki Ohkawara

发明人： Munetoshi Maesaka ,  Takashi Itoh ,  Shizuo Aishima ,  Masaaki Ohkawara

IPC分类号： B01D1/18 ,  B01J2/04 ,  B05B7/10

CPC分类号： B01D1/18 ,  B01J2/04 ,  Y10S159/03

摘要： The present invention provides a spray-drying granulation apparatus having a chamber comprising (a) an upper section which is a spray-drying section for spraying a feed solution from a nozzle and drying the formed droplets with hot air and (b) a lower section which is a fluidized granulation section, in which apparatus there is used, as the nozzle for spraying a feed solution, a two-fluid pressure nozzle comprising a centrifugal pressure nozzle for spraying a feed solution and a cylindrical pipe for blowing out a high-speed gas, provided around the centrifugal pressure nozzle. This spray-drying granulation apparatus enables spraying of even a feed solution of large volume with only one nozzle. Further with the two-fluid pressure nozzle of the apparatus, there is no need of replacement of nozzle parts when the feed rate, concentration, viscosity, kind, etc. of the feed solution are changed greatly, because the diameters of droplets formed by spraying can be controlled by controlling the speed of the high-speed gas, while in the conventional nozzles the replacement of nozzle parts such as orifice, core and the like has been necessary when the above change is made.

摘要翻译： 本发明提供了一种具有腔室的喷雾干燥造粒装置，其包括（a）上部，其是用于从喷嘴喷射进料溶液并用热空气干燥所形成的液滴的喷雾干燥部分，（b）下部 作为喷射给料液的喷嘴的流化制粒部，使用包括用于喷射进料溶液的离心压力喷嘴的二流体压力喷嘴​​和用于吹出高速运转的圆筒状管 气体，围绕离心压力喷嘴提供。 这种喷雾干燥造粒装置能够仅喷射一个喷嘴即可喷射大量的进料溶液。 此外，当装置的双流体压力喷嘴​​，当进料溶液的进料速度，浓度，粘度，种类等大大改变时，不需要更换喷嘴部件，因为喷雾形成的液滴的直径 可以通过控制高速气体的速度来控制，而在常规喷嘴中，当进行上述改变时，需要更换诸如孔，芯等的喷嘴部件。