FIELD: process engineering.
SUBSTANCE: disperse powders are produced by spray drying of aqueous polymer dispersions and adding of anti-caking means in disc sprayer. It differs from know designs in that said anti-caking means is fed by carrier air, partially or completely, in circular slit. The latter is composed of moulded part arranged concentrically around the disc sprayer case and terminates at the distance above the sprayer disc top edge.
EFFECT: higher efficiency.
10 cl, 1 dwg
