Vorrichtung zum Konzentrieren einer Loesung oder Suspension
1316796 Evaporators, flash type; separation of solvent from polymer solution BAYER AG 4 Dec 1970 [24 Dec 1969] 57639/70 Heading B1B Solid material, e.g. a polymer, is separated from a solution or suspension by introducing it through pipe 1 and nozzle 2 into flash evaporation chamber 3; the solvent v...
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Main Authors | , , |
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Format | Patent |
Language | German |
Published |
01.07.1971
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Subjects | |
Online Access | Get full text |
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Summary: | 1316796 Evaporators, flash type; separation of solvent from polymer solution BAYER AG 4 Dec 1970 [24 Dec 1969] 57639/70 Heading B1B Solid material, e.g. a polymer, is separated from a solution or suspension by introducing it through pipe 1 and nozzle 2 into flash evaporation chamber 3; the solvent vapours leave the chamber through pipe 6, and the solid is discharged by a device 11 comprising at least two mutually-scraping cylindrical screw shafts. The device 11 may comprise four screw shafts arranged in V-formation. The walls of the chamber 3 are equipped with a cooling jacket 5, so that some of the solvent vapour condenses thereon to form a film of liquid which prevents the formation of solid deposits. The housing of the device 11 is equipped with heating and/or cooling jackets 15, 16. The nozzle 2 is provided with an adjustable throttling device 17, and also with a cooling element (not shown). |
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Bibliography: | Application Number: DE19691964949 |