APPARATUS FOR GRANULATING AND/OR COATING PARTICLES IN A SPOUTED BED

摘要

An apparatus for granulating and/or coating solid particles in a spouted bed comprises a downwardly converging frustoconically shaped hollow body having a hollow cylindrically shaped body mounted coaxially around and extending upward therefrom. The hollow cylindrically shaped body has an outlet connected thereto for appropriately shaped granules. A gas feed conduit is coaxially attached to said frustoconically shaped hollow body at the bottom smaller end thereof, and a spray nozzle is positioned coaxially within the gas feed conduit adjacent the bottom smaller end of the frustoconically shaped hollow body. A downwardly inclined recentering flange is attached to the inside walls of the hollow cylindrically shaped body, said flange extending so as to overlap the frustoconically shaped body to define an annularly extending gap around the top edge of the frustoconically shaped body, and said flange providing an outlet for finished granules. An inclined bottom floor is attached to the cylindrically shaped body and to the extension of the frustoconically shaped body for closing off the bottom of the cylindrically shaped body.