Abstract: An apparatus for the production of grains using the rolling layer technique. The apparatus has a container formed from multiple concentric sections, a truncated cone shaped lower section, a cylindrical shaped middle section, and, at least one cylindrical shaped upper section, and is supported for rotation about the longitudinal axis of the container. The lower section tapers outward from a lower end face plate to an upper end which communicates with the lower end of the middle section to form a transfer port between the lower and middle sections, while the upper end of the middle section communicates with the holed lower face of the upper section to form a transport port between the upper and the middle sections. An annular ridge-like structure exists on the interior surface of the lower face of the upper section, circumferentially surrounding the transfer port. The cross-sectional diameters and the heights of the sections vary relative to each other.

Abstract: Method and apparatus for the recovery of the solid material content of solutions and/or suspensions as granules in a gas fluidized bed which contains particles, the composition of which is identical with that of the solid material in the solution and/or suspension to be processed, in which fluidized bed the solution and/or suspension is sprayed onto the surface and/or interior of the hot gas, especially hot air fluidized layer, and from which fluidized bed particulate material is continuously withdrawn at a mass flow rate corresponding to the solid material content of the liquid phase sprayed in, and also, in which system a grinding mechanical effect is created by forcing continuously particles formed in the fluidized bed through at least one slit of controllable clearance, located in the fluidized layer, itself, in order to produce in a single technological step, in a single apparatus particulate material of predetermined, given particle size distribution.

Abstract: Multi-cell fluidization and atomization apparatus for the continuous production and/or coating of granules, for example in pharmaceutical and agricultural chemical industries, comprises a series of upright cylindrical cells through which the particulate material moves sequentially having inlet and outlet openings at various heights and rotary agitators therein. The material is fluidized in the cells and may also be contacted by an atomized liquid.

Abstract: A process for the continuous drying of chemical products by milling fluidization, in which a fluidized bed of particles of an inert carrier, e.g., quartz sand having a particle diameter of 0.5-1.0 mm., is maintained and the chemical product to be dried is introduced in a wet state, e.g., wet solid or paste or suspension, into the fluidized carrier bed. The chemical product dries on the surface of the inert carrier particles and dry particles of the chemical product leave the relatively large and heavy carrier particles and are carried off in the exit gas. The carrier particles, however, are too large and heavy to leave in the exit gas and so remain in the fluidized bed. If desired, the dried product particles can be further dried, for example by additional drying gas in a cyclone chamber, after which the dried particles are separated from the gas which can be vented and/or recycled.