Abstract: The invention relates to an agitator ball mill having a vertically arranged container, in which there an agitator that can be rotated about a vertical axis is arranged, and having at least one wear prevention element that can be fitted to the container inner wall with the aid of a fixing system, wherein the fixing system comprises a fixing pin and a fixing cut-out, which are arranged on the container inner wall and/or the rear side of the wear prevention element in such a way that the wear prevention element can be fixed to the container inner wall by means of a movement of the wear prevention element in a direction which forms an angle ?>0° with the vertical axis of the rotatable agitator, in that the fixing pin is guided into the fixing cut-out.

Abstract: The present invention concerns a mixing device having a preferably rotating container for accommodating material to be mixed, at least one mixing tool arranged in the interior of the container and a heating device for heating the material to be mixed. To provide a mixing device of the kind set forth in the opening part of this specification which permits the fastest possible heating of the material to be mixed, preferably also to temperatures higher than 200° C., it is proposed in accordance with the invention that the container at least partially comprises an electrically conductive material and the heating device has at least one coil which can be excited by an electric alternating field and which is so arranged that eddy currents are produced in the electrically conductive material of the container by the magnetic field change which occurs when the current flow changes.

Abstract: The invention relates to an agitator ball mill having a vertically arranged container, in which there an agitator that can be rotated about a vertical axis is arranged, and having at least one wear prevention element that can be fitted to the container inner wall with the aid of a fixing system, wherein the fixing system comprises a fixing pin and a fixing cut-out, which are arranged on the container inner wall and/or the rear side of the wear prevention element in such a way that the wear prevention element can be fixed to the container inner wall by means of a movement of the wear prevention element in a direction which forms an angle ?>0° with the vertical axis of the rotatable agitator, in that the fixing pin is guided into the fixing cut-out.

Abstract: The present invention relates to a granulating and/or agglomerating tool for a granulating and/or agglomerating device with a fastening shaft and a substantially disk-shaped element with a diameter d which is fastened thereto and has an upper surface, a lower surface and a circumferential surface connecting the upper and the lower surface. In order to provide a granulating and/or agglomerating tool for a granulating and/or agglomerating device and a corresponding granulating and/or agglomerating device and a method for granulating or agglomerating with which the desired granulating or agglomerating result can be obtained very much faster and above all with a significantly finer granulated material with a significantly higher yield in the range of from 0.1 to 0.8 mm, it is proposed according to the invention that the circumferential surface exhibits a plurality of essentially V-shaped grooves running parallel to the axis of the shaft.

Abstract: The invention relates to a mixing blade (6) consisting, of a base part (15) fixable to a shaft and a removable wearable element (12). The aim of said invention is to develop a more economical mixing blade. For this purpose, the wearable element (12) and the base part (15) overlap on at least 30% of the base part length and define different cross-sections of the mixing blade (6) in said area.

Abstract: The present invention concerns a method for processing molding sand. In order to provide a method with a simple regulating system to control the compressibility of a reclaimed molding sand, the invention proposes that the molding sand be divided into several charges and the processing parameters, such as the quantity of water, the quantity of new sand and/or the quantity of clay to be added, is corrected on the basis of the difference following processing between the actual compressibility and the reference compressibility of the molding sand, measured for the preceding charge.

Abstract: The present invention relates to a mixer with a mixing container and a tool shaft (8) which is arranged at least partly in the mixing container and has a drive end and a working end for a working tool (6), the tool shaft (8) being mounted on the drive end by means of two mutually set-apart tool bearings and a drive motor (7) being provided for the tool shaft (8). In order to provide a mixer which is simple and economical to manufacture and has as few movable and wearing parts as possible and the tool shaft (8) of which is, in addition, able to accommodate the considerable transverse forces occurring during operation, the invention proposes that the drive motor (7) have a motor shaft which is mounted, at least on one side, by a tool bearing.

Abstract: A vertical grinding mill is provided including a closed vertical milling container in which a screw conveyor is arranged for rotary drive so as to convey grinding bodies to the top. The package of grinding bodies adjusts itself during operation such that the surface thereof is configured to slope radially outwards and downwards and to end in the region of the bottom edge of an outlet for grinding stock. Gas is introduced into the milling container above the package of grinding bodies. The gas and grinding stock are discharged from the milling container via the outlet for grinding stock.

Abstract: The invention relates to a vertical grinding mill including a closed vertical milling container in which a screw conveyor is arranged for rotary drive so as to convey grinding bodies to the top. The package of grinding bodies adjusts itself during operation such that the surface thereof is configured to slope radially outwards and downwards and to end in the region of the bottom edge of an outlet for grinding stock. Gas is introduced into the milling container above the package of grinding bodies. The gas and grinding stock are discharged from the milling container via the outlet for grinding stock.

Abstract: The present invention concerns a mixing device having a preferably rotating container for accommodating material to be mixed, at least one mixing tool arranged in the interior of the container and a heating device for heating the material to be mixed. To provide a mixing device of the kind set forth in the opening part of this specification which permits the fastest possible heating of the material to be mixed, preferably also to temperatures higher than 200° C., it is proposed in accordance with the invention that the container at least partially comprises an electrically conductive material and the heating device has at least one coil which can be excited by an electric alternating field and which is so arranged that eddy currents are produced in the electrically conductive material of the container by the magnetic field change which occurs when the current flow changes.

Abstract: The present invention concerns a method for processing moulding sand. In order to provide a method with a simple regulating system to control the compressibility of a reclaimed moulding sand, the invention proposes that the moulding sand be divided into several charges and the processing parameters, such as the quantity of water, the quantity of new sand and/or the quantity of clay to be added, is corrected on the basis of the difference following processing between the actual compressibility and the reference compressibility of the moulding sand, measured for the preceding charge.

Abstract: The invention relates to a vertical grinding mill comprising a closed vertical milling container in which a screw conveyor is arranged for rotary drive so as to convey grinding bodies to the top. The package of grinding bodies adjusts itself during operation such that the surface thereof is configured to slope radially outwards and downwards and to end in the region of the bottom edge of an outlet for grinding stock. Gas is introduced into the milling container above the package of grinding bodies. The gas and grinding stock are discharged from the milling container via the outlet for grinding stock.

Abstract: It is known that poorly-flowing solid materials can lead to an inhomogeneous mass flow of the solid across the discharge cross-section of a silo. If the solid in the silo is also heated or cooled the uneven mass flow can lead, for example, to local variations in temperature and/or hence to varying product properties. According to the invention, the above problem may be resolved, whereby a method and a discharge device for a solids silo and a solids silo are disclosed, permitting a controllable solids discharge evenly across the cross-section of the silo. The cross-section of the silo discharge is divided into several, preferably equivalent, partial cross-sections to which a continuously controllable discharge device is connected. The solid flow discharged from the controllable discharge devices can be collected on a continuous conveyor arranged therebelow and removed.

Abstract: An agitator mill comprises a grinding receptacle and a rotarily drivable agitator arranged therein. A grinding-stock supply mouthes into the grinding chamber; a grinding-stock discharge leads out of the grinding chamber. The grinding chamber is at least partially filled with auxiliary grinding bodies. The grinding-stock discharge is embodied as a device for grinding stock suction and auxiliary-grinding-body separation, comprising a plunge pipe which dips into a bed of grinding stock and auxiliary grinding bodies and from which, above the grinding receptacle, discharges a suction pipe with a grinding-stock suction device.