公开(公告)号：US4395830A

公开(公告)日：1983-08-02

申请号：US300180

申请日：1981-09-08

申请人： Raymond M. Lockwood

发明人： Raymond M. Lockwood

IPC分类号： F26B3/08 ,  F26B3/092 ,  F26B7/00 ,  F26B21/04 ,  F26B23/02

CPC分类号： F26B3/082 ,  F26B21/04 ,  F26B23/026 ,  F26B3/092 ,  F26B7/00

摘要： A fluid bed dryer includes a tank with an upright wall, a top, and a floor which rotates under a plurality of blades adjacent the floor and fixed to an inner annular baffle. A gas manifold is defined between the tank wall and the baffle, and opens under the baffle into a drying space in the tank.A pulse jet engine pumps pulsating hot gas and sonic waves to the gas manifold to fluidize a bed of moist particles which are introduced into the drying space above the blades. There is a time average uniform exposure of the bed to the fluidizing gas effected by continuously changing the exposure of the particles to the gas. Pulsating hot gas and sonic energy waves flow from the periphery of the tank toward the center of the dryer. The pulse jet engine also supplies an auxiliary gas inlet at the side of the tank to maintain a swirl of gas above the fluidized bed. An adjustable bypass diverts the flow of gas from the auxiliary inlet to the gas manifold for adjusting the strength of the gas swirl. Gas and dried products are withdrawn from the dryer, and the gas is recycled to the tailpipe end of the pulse jet engine. The pulse jet inlet is supercharged to provide sufficient oxygen to support continuous combustion. The supercharged atmosphere is kept from feeding the tailpipe exhaust. Drying proceeds in an inert atmosphere.

摘要翻译： 流化床干燥器包括具有直立壁的罐，顶部和在与地板相邻的多个叶片下旋转并固定到内部环形挡板的地板。 气体歧管被限定在罐壁和挡板之间，并在挡板下面打开到罐中的干燥空间中。 脉冲喷气发动机将脉动的热气体和声波泵送到气体歧管以使引入叶片上方的干燥空间的潮湿颗粒床流化。 通过连续地改变颗粒暴露于气体，床对流化气体的时间平均均匀地暴露。 脉冲热气体和声波能量从罐周边流向干燥器的中心。 脉冲喷气发动机还在罐的侧面提供辅助气体入口，以保持流化床上方的气体旋流。 可调旁路将气流从辅助入口转移到气体歧管，以调节气体涡流的强度。 气体和干燥产品从干燥器中取出，气体被再循环到脉冲喷气发动机的尾管端。 脉冲喷射入口被增压以提供足够的氧气以支持连续燃烧。 增压气氛保持不排气排气管。 干燥在惰性气氛中进行。

公开(公告)号：US4334366A

公开(公告)日：1982-06-15

申请号：US190296

申请日：1980-09-24

申请人： Raymond M. Lockwood

发明人： Raymond M. Lockwood

IPC分类号： F26B7/00 ,  F26B21/04 ,  F26B23/02 ,  F26B5/02

CPC分类号： F26B7/00 ,  F26B21/04 ,  F26B23/026

摘要： A perforated drum serves as a drying chamber into which moist particles are loaded. The drum is rotated about a horizontal axis to tumble the particles. Sonic energy and hot pulsating gas from a pulse jet engine are supplied to a plenum opening into the drum.The gas flows through the drum transversely to the axis and contacts the tumbling particles to dry them. A shroud encloses the drum. Moisture-laden gas exhausted from the drum is collected in the shroud and recycled to the pulse jet engine. Sonic energy escaping from the drum is reflected by the shroud back into the drum. The particles are continually exposed to pulsating hot gas and reflected sonic energy. Dried product is withdrawn from the dryer.

摘要翻译： 多孔鼓用作干燥室，湿颗粒被加载到其中。 滚筒围绕水平轴旋转以滚动颗粒。 来自脉冲喷气发动机的声能和热脉动气体被供应到鼓室中的通风口。 气体横穿滚筒并与滚筒相接触以将它们干燥。 一个护罩包围着鼓。 从滚筒排出的含水气体被收集在护罩中并被再循环到脉冲喷气发动机。 从鼓中逸出的声能被罩罩反射回滚筒。 颗粒不断暴露于脉动热气体和反射声能。 干燥产品从烘干机中取出。