公开(公告)号：US06461672B1

公开(公告)日：2002-10-08

申请号：US09640394

申请日：2000-08-16

申请人： Antti Kosola ,  Ryszard Braun ,  Nathaniel T. Becker ,  Robert L. Christensen, Jr. ,  Ville Kyläkoski ,  Alfred L. Gaertner

发明人： Antti Kosola ,  Ryszard Braun ,  Nathaniel T. Becker ,  Robert L. Christensen, Jr. ,  Ville Kyläkoski ,  Alfred L. Gaertner

IPC分类号： B05D700

CPC分类号： B01J2/16 ,  B01J2/006

摘要： A fluidized bed coating apparatus is provided and includes a fluid inlet adapted to be connected to a source of fluidizing fluid. The fluid inlet has an entrance opening having a first diameter and an exit opening downstream of the entrance opening. The exit opening has a second diameter that is larger than the first diameter. The inlet also includes an expanding inlet section, between the entrance opening and the exit opening, that has an average diameter that increases in a direction from said entrance opening to said exit opening. A fluid distribution plate is provided adjacent the exit opening and includes a plurality of through-passages to allow the even and distributed passage of a fluidizing fluid therethrough. A chamber having a chamber inlet and a chamber outlet is provided and the fluid distribution plate is positioned between the exit opening and the chamber inlet. The chamber includes at least a first diverging section having an average diameter that increases in the direction from the chamber inlet downstream toward the chamber outlet. The symmetrical design of the coater provides an evenly distributed flow of fluid that enables efficient and complete fluidization and coating of very large particle beds.

摘要翻译： 提供了一种流化床涂覆设备，并包括适于连接到流化流体源的流体入口。 流体入口具有入口，其具有第一直径和入口开口下游的出口。 出口具有大于第一直径的第二直径。 入口还包括在入口和出口之间的扩张入口部分，其具有在从所述入口到所述出口的方向上增加的平均直径。 流体分配板邻近出口设置并且包括多个通道以允许流化流体均匀分布通过其中。 提供具有室入口和室出口的室，并且流体分配板位于出口和室入口之间。 该腔室至少包括第一发散部分，该第一发散部分具有在从腔室入口下游朝向腔室出口的方向上增加的平均直径。 涂布机的对称设计提供均匀分布的流体流动，能够高效，完全地流化和涂覆非常大的颗粒床。