公开(公告)号：US11988449B2

公开(公告)日：2024-05-21

申请号：US17442476

申请日：2019-03-25

Applicant: GEA Process Engineering A/S

Inventor： Mads Lund Steffensen ,  Kristian Mark Ingvorsen ,  Henrik Schwartzbach

IPC: B01D1/18 ,  F26B3/12 ,  F26B17/04 ,  F26B25/10

CPC classification number: F26B3/12 ,  B01D1/18 ,  F26B17/04 ,  F26B25/10

Abstract: A spray drying apparatus has a spray drying chamber; a liquid feed atomizer; a drying gas disperser; a perforated bottom; and a plenum chamber with an outlet below the perforated bottom. At least one guide plate is provided in the plenum chamber to direct gas, which is passing through the perforated bottom into the plenum chamber, towards the bottom of the plenum chamber. The guide plates have lower edges extending on average down to at least half-way between the perforated bottom of the spray drying chamber and the bottom of the plenum chamber.

公开(公告)号：US20220357727A1

公开(公告)日：2022-11-10

申请号：US17760545

申请日：2020-09-18

Applicant: GEA Process Engineering A/S

Inventor： Michael Muehlpfordt ,  Andreas Frank ,  Marko Savic ,  Henrik Schwartzbach ,  Christian Hirschen ,  Lars Voigt

IPC: G05B19/418 ,  G05B19/05

Abstract: A method for training an operator of a spray drying plant, the spray drying plant including a plurality of plant elements including pre-processing elements, a spray drying element, post-processing elements, powder recovery elements, and a programmable logic controller, PLC. The method including the steps of: obtaining a transient model of the spray drying plant, wherein the transient model includes transient sub-models of the plurality of plant elements; calculating repeatedly simulated sensor data based on the obtained transient model, using a processing unit; displaying on a display a training human machine interface, tHMI, configured to communicate with the transient model of the spray drying plant, and to display the simulated sensor data and control data for the transient model; and updating the transient model based on operator input on the tHMI, for controlling the transient model of the spray drying plant.