EP 0945168 B1 20030702 - Process and apparatus for the preparation of a homogeneous mixture in continuous way
Title (en)
Process and apparatus for the preparation of a homogeneous mixture in continuous way
Title (de)
Verfahren und Vorrichtung zur kontinuierlichen Herstellung homogener Mischungen
Title (fr)
Procédé et dispositif pour la préparation d'un mélange homogéne à action continue
Publication
Application
Priority
DE 19806934 A 19980219
Abstract (en)
[origin: EP0945168A1] The mixing of difficult-to-mix materials, e.g. water and polyacrylamide suspension, comprises injecting air into both components and providing variable mixing stream profiles in a static mixer. When components are difficult to mix, e.g. water and polyacrylamide suspension, air is injected into both components as they enter a mixing chamber. The gas enters through a nozzle (3) at the top and water is fed into the base. Air connections (6,7) enter the nozzle, and a water bath through an aerator (10). The water passes upward through a floor (11) to be put into rotation by a fixed vane (12). An indirect level sensor (2) and the position of the vane, whose level is variable, automatically control the profile of the rotating water. The gas/air mixture passes through a water-free zone (1) and, when mixed, passes through a perforated floor (13) to an outlet (9). The process can be carried out at elevated pressure or partial vacuum. The capacity of the smallest mixer is about 1 liter and the mixing time is measured in seconds.
IPC 1-7
IPC 8 full level
B01F 3/08 (2006.01); B01F 3/12 (2006.01); B01F 7/16 (2006.01); B01F 13/06 (2006.01); B01F 13/10 (2006.01); B01F 15/00 (2006.01)
CPC (source: EP US)
B01F 23/49 (2022.01 - EP); B01F 23/59 (2022.01 - EP); B01F 33/70 (2022.01 - EP); B01F 33/81 (2022.01 - EP); B01F 35/20 (2022.01 - EP); B01F 35/21 (2022.01 - EP US); B01F 35/2112 (2022.01 - EP)
Designated contracting state (EPC)
AT CH DE ES FI FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0945168 A1 19990929; EP 0945168 B1 20030702; AT E244056 T1 20030715; DE 19806934 A1 19990930; DE 59906142 D1 20030807
DOCDB simple family (application)
EP 99102503 A 19990210; AT 99102503 T 19990210; DE 19806934 A 19980219; DE 59906142 T 19990210