Abstract: The invention relates to a device for feeding a drying gas to a mixing granulator comprising a mixing chamber and a rotating agitator (3), on which mixer blades (4) are arranged in a radial position with respect to a drive shaft (5). The feeder line (6) for the drying gas is disposed inside the drive shaft (5) of the agitator (3). An exit line (7) is respectively connected in the region of each mixer blade (4), said line terminating in at least one outlet (8) arranged underneath and, in the direction of rotation, behind the mixer blades (s). The outlet (8) extends advantageously in at least partial manner along the mixer blades (4), embodied in the form of a slit or in a flat manner in the form of a porous element.

Abstract: The invention relates to hollow balls having shells comprising a sintered inorganic material, such as metals, metal oxides or ceramic, and to methods for producing lightweight structural components using such hollow balls. According to the object of the invention, the application area is to be widened, processing to form structural components is to be made technologically simpler and the properties of the hollow balls and of the structural components produced therewith are to be improved for specific applications. For this purpose, an additional solid functional layer is formed on a shell on the hollow balls. The functional-layer material can then be made able to flow and plastically and/or elastically deformed as a result of a physical and/or chemical treatment.

Abstract: Device and method for drying a pourable products. The device includes a rotor chamber in which a rotor is arranged with a vertical rotor axis. The rotor has a central horizontal surface and, at least in its radially outer third, a conical shell which is inclined to the axis of rotation by 20° to 70°, in such a way that the end face of the conical shell has the largest diameter and is located at the top. The conical shell has, at least partially, sheet-like gas passages in the form of perforations or screens. The method for drying pourable products provides for dry gas to be fed in a sheet like manner to the products to be dried during the radially peripheral circulation of the products without the products being swirled up and being exposed to unacceptable compressive, concussive and/or frictional loads.

Abstract: Device for producing a pourable product with a guide vane therein and method for using the device. The device includes a rotor chamber in which a rotor is arranged with a vertical rotor axis. The rotor has, at least in its radially outer third, the shape of a conical shell. Guide vanes for circulating starting materials or the product are arranged statically on an inner wall of the rotor chamber above the plane of the upper edge of the rotor. The guide vanes have, in cross section to the rotor axis, essentially the shape of a segment of a circle or spiral. The inner ends of the guide vanes lie approximately in the middle part of the rotor radius. The conical shell may have at least partially sheet-like gas passages in the form of perforations or screens. The device is used for producing pourable products.

Abstract: A sealing system for a closing flap in a passage orifice of a facility where, in a coupled position, the closing flap rests in parallel against an identical closing flap on another facility in a sealing plane and cooperates therewith in such a way that the interiors of the two facilities are connected to one another. In a closed position, the individual closing flap has a seal on its circumference for sealing off an associated passage orifice. At least one of the two cooperating closing flaps has, on its circumference, a groove which is delimited on both sides by annular legs. A first leg delimits the groove toward the interior of the respective facility and extends near to the sealing surface of the passage orifice. The second leg is radially shortened relative to the first leg.