Glatt Maschinen-und Apparatebau Ag

Glatt Gmbh

Werner Glatt

Erwin Grab

Reinhard Nowak

An apparatus and process for making pellets from a fluidizable material having a fluid bed chamber with a perforated base and an open upper end in which a rotatable means for shaping the pellets is located. Gas for the formation of a fluidized current is introduced through the perforated base. A fluid spray for the agglomeration and coating of the fluidizable material is introduced into the fluid bed chamber, preferably near the perforated base in the central area of the fluid bed chamber. Additionally, a device for channeling agglomerated material is preferably located at a distance above the perforated base and concentrically with the longitudinal axis of the sprayer. A fluidized current carries particles, while still plastic, upwardly through the channeling device causing them to impinge on the underside of the rotatable means. The rotatable means thereby shapes the agglomerated material, and urges the shaped material outwardly where it falls toward the perforated base and is recirculated to form larger pellets. The apparatus and process also includes other treatments of the material such as coating and drying, as the material is pelletized.

Apparatus pelletizing particles

Device for coating particles, particularly drugs in the form of

A process and apparatus for coating particles, particularly particles of medicinal drugs. The apparatus has a rotating drum provided with a perforated cylindrical center section. Particles to be coated are introduced into the interior of the drum and form a layer in a lower quadrant of the cylindrical section during rotation of the drum. A spraying device is located in the interior of the drum for coating the particles with an appropriate mixture or solution. A device is positioned adjacent the portion of the drum containing the particles for introducing gas through the perforations into the layer of particles so as to dry the particles. A device also is provided for removing gas from the drum through the perforations. The device for introducing gas can be separated from the device for removing gas by a central partition, with both devices being carried by a common support. Also, it is possible to introduce gas into a portion of the interior of the drum that is spaced from the layer of particles.

Process of coating of particles, particularly particles of medicinal

A device for the formation of a granulated substance. The device has a container which is open at the bottom and can be closed off by a movable bottom member of solid construction. Additionally, two other bottom members, which have lattices with different mesh widths or openings, can be optionally moved under the container instead of the solid member, which bottom member does not have openings. A stirrer is arranged in the container, which has a top container section that contains a filter connected to a suction fan. In order to form a granulated substance, the container is first closed off by the solid bottom member and a powdery material and a liquid are introduced into the container for mixing with each other by means of a stirrer. Subsequently, the solid bottom member is replaced by one of the lattice bottom members and warm air is drawn into the container. In this way, the humid mixed material is whirled about, dried and granulated. Then, the granulated material is discharged from the container and simultaneously sifted. Thus, a powdery substance of different components can be mixed with a liquid in the container while avoiding a disintegration of the powder components and, subsequently, the mixture can be dried and granulated in the same container without any intermediate transporting.

Growing community of inventors

Binzen, Germany

Werner Glatt