公开(公告)号：EP2074366B1

公开(公告)日：2016-01-06

申请号：EP07860950.0

申请日：2007-10-16

申请人： Agresearch Limited

发明人： ANDERSON, Steve ,  CARSON, James Kenneth ,  CUDDON, John ,  PLANTHABER, Steven

IPC分类号： F26B5/06 ,  A23L3/44 ,  B01D1/18 ,  B01J2/26

CPC分类号： F26B5/065 ,  A23L3/44 ,  B01D1/18 ,  B01J2/26

公开(公告)号：EP2074366A2

公开(公告)日：2009-07-01

申请号：EP07860950.0

申请日：2007-10-16

申请人： Agresearch Limited

发明人： ANDERSON, Steve ,  CARSON, James Kenneth ,  CUDDON, John ,  PLANTHABER, Steven

IPC分类号： F26B5/06 ,  A23L3/44 ,  B01D1/18 ,  B01D9/00

CPC分类号： F26B5/065 ,  A23L3/44 ,  B01D1/18 ,  B01J2/26

摘要： The invention relates to a spray freeze dryer apparatus and method of using same for use in drying or concentrating a raw material which at ambient conditions has a solid and an aqueous portion. The dryer includes a chamber and a chamber pressure reduction device; an inlet nozzle or nozzles through which the raw material is injected into the chamber; and a collection surface or surfaces which collect a frozen portion of the raw material. The chamber is kept at a pressure below the triple-point pressure of the aqueous portion of the raw material. Several additional features are described to control the thickness of the layer on the collection surface.