Dissolver

A dissolver is a disc stirrer that is mainly used in the paint and varnish industry, chemical industry and plastics industry for dispersion . Here, pigment powder is dispersed in a binder , the function of the dissolver being to break up agglomerates made up of primary particles.

functionality

A toothed stirrer disk is attached to a vertical stirrer shaft and is dipped into the product to be dispersed. If the disc starts rotating, shear forces arise that break up the agglomerates.

For a sufficiently high power transmission, the size ratio of the agitator disk and agitator container, as well as the speed and fill level must be observed. Ideal dispersion is achieved when a toroidal flow pattern is created in the product (so-called donut effect ).

Areas of application

• Paint production
• Liquid color production
• Papermaking

source

• Artur Goldschmidt, Hans-Joachim Streitberger: BASF Handbook Painting Technology , Vincentz Network GmbH & Co KG, 2002, ISBN 3-87870-324-4

literature

• Paolo Nanetti: Paint for beginners . 3. Edition. Vincentz Network & Co KG, Hannover 2009, ISBN 978-3-86630-847-3 , p. 90 f . ( limited preview in Google Book search).