Abstract: An apparatus for treating particulate material has a process chamber for receiving and treating the material. A bottom is composed of a plurality of overlapping guide plates which are placed one above the other and between which annular slots for process air to pass through are formed. An annular-gap nozzle is arranged centrally in the bottom, the orifice of this annular-gap nozzle being designed in such a way that a planar spray pancake which runs approximately parallel to the bottom plane can be sprayed.

Abstract: A process for treating a particulate material is described, comprising the steps of filling the material into a container, the container having a base, an upright wall widening from bottom to top, and a deflection element adjoining the wall in an upper region of the container, moving the material in the container in a continuous circulatory movement along the base to the wall and along the wall upward by rotating the wall about a vertical axis of rotation, and moving the material along the deflection element by an air stream, which is introduced substantially from bottom to top through at least one air gap in a transition region from the wall to the deflection element and, in a region adjacent to the air gap, substantially tangentially with respect to the course of at least one of the wall and the deflection element. Further an apparatus for carrying out the process is described.

Abstract: An oscillating piston machine comprises a plurality of pistons which are arranged in a housing, rotate together in the housing about an axis of rotation which is essentially central in the housing and is fixed to the housing, and execute reciprocating oscillating movements about a respective oscillation axis as they rotate in the housing, in each case two adjacent pistons executing oscillating movements in opposite directions. The housing is of spherical construction on the inside, the oscillation axes of the pistons being formed by a common oscillation axis which run essentially through the center of the housing.

Abstract: An apparatus for treating a particulate material, in particular for mixing, drying, granulating, pelletizing and/or coating the material, has a container which has a process chamber arranged around a longitudinal mid-axis of the container and formed as an annular chamber, and also a container central duct, separated from the process chamber, as a flow duct for process air, which duct opens into the lower region of the process chamber, an upper region of the process chamber being open. In at least one first operating state, the upper open region of the process chamber communicates with the container central duct so as to conduct process air, by the container central duct widening circumferentially towards the upper region of the process chamber and opening towards the process chamber.

Abstract: The invention relates to an oscillating piston machine, comprising a housing which has an essentially spherical housing inner wall, four pistons which rotate together about an axis of rotation which is approximately in the center of the housing being arranged in the housing in which case, of the four pistons in each case two pistons which are approximately diametrically opposite one another with respect to the center of the housing form a rigid piston pair the two piston pairs being capable of pivoting to and fro in opposite directions about a common pivot axis (42) which runs approximately perpendicularly with respect to the axis (40) of rotation, the two piston pairs being arranged in criss-cross fashion with respect to the pivot axis (42) in such a way that in each case two pistons of the two piston pairs have their piston working faces opposite one another in order to form a working chamber between them, each piston pair having a bearing section for mounting the piston pair on the pivot axis and in each c

Abstract: An apparatus for treating particulate material has an elongated, tunnel-like process chamber, along which the material to be treated can be moved from an inlet to an outlet. A bottom of said process chamber is designed in that two flows of introduced process air are oriented transversely with respect to the longitudinal direction and impinge on each other along a breaking-up zone. Arranged in the bottom are air guide elements which can be adjusted by an adjustment device in that the process air can have superimposed on it a variable movement component in the longitudinal direction.

Abstract: An apparatus for treating particulate material has a process chamber for receiving and treating the material. A bottom is composed of a plurality of overlapping guide plates which are placed one above the other and between which annular slots for process air to pass through are formed. An annular-gap nozzle is arranged centrally in the bottom, the orifice of this annular-gap nozzle being designed in such a way that a planar spray pancake which runs approximately parallel to the bottom plane can be sprayed.

Abstract: An apparatus for treating particle-shaped material has a process chamber for accommodating and treating the material. A base is composed of guide plates which are placed one above the other in different planes and overlap one another and between which slots are arranged, via which process air can be directed into the process chamber with an essentially horizontal component motion. It is proposed to provide a vertical—adjustment device which interacts with the guide plates and by means of which the distance between the guide plates and thus the height of the slots can be varied.

Abstract: An apparatus for treating a particulate material, in particular for mixing, drying, granulating, pelletizing and/or coating the material, has a container which has a process chamber arranged around a longitudinal mid-axis of the container and formed as an annular chamber, and also a container central duct, separated from the process chamber, as a flow duct for process air, which duct opens into the lower region of the process chamber, an upper region of the process chamber being open. In at least one first operating state, the upper open region of the process chamber communicates with the container central duct so as to conduct process air, by the container central duct widening circumferentially towards the upper region of the process chamber and opening towards the process chamber.

Abstract: An apparatus for treating particulate material has an elongated, tunnel-like process chamber, along which the material to be treated can be moved from an inlet to an outlet. A bottom of said process chamber is designed in that two flows of introduced process air are oriented transversely with respect to the longitudinal direction and impinge on each other along a breaking-up zone. Arranged in the bottom are air guide elements which can be adjusted by an adjustment device in that the process air can have superimposed on it a variable movement component in the longitudinal direction.

Abstract: A device for treating particulate material has a process chamber. A bottom of the process chamber is composed of baffle plates which overlap one another and between which slots are formed. It is proposed to design the baffle plates as annular plates, so that circular slots are formed, and to place the annular plates in such a way that a radially outer, first flow, directed from outside to inside, of process air passing through, and a radially inner, second flow, directed from inside to outside, of process air passing through are formed, the two opposed flows meeting one another along a circular breaking-up zone and being deflected into a flow directed vertically upwards.

Abstract: A device for treating particulate material has a process chamber. A bottom of the process chamber is composed of baffle plates which overlap one another and between which slots are formed. It is proposed to design the baffle plates as annular plates, so that circular slots are formed, and to place the annular plates in such a way that a radially outer, first flow, directed from outside to inside, of process air passing through, and a radially inner, second flow, directed from inside to outside, of process air passing through are formed, the two opposed flows meeting one another along a circular breaking-up zone and being deflected into a flow directed vertically upwards.

Abstract: An oscillating piston machine comprises a plurality of pistons which are arranged in a housing, rotate together in the housing about an axis of rotation which is essentially central in the housing and is fixed to the housing, and execute reciprocating oscillating movements about a respective oscillation axis as they rotate in the housing, in each case two adjacent pistons executing oscillating movements in opposite directions. The housing is of spherical construction on the inside, the oscillation axes of the pistons being formed by a common oscillation axis which run essentially through the center of the housing.

Abstract: A process for treating a particulate material is described, comprising the steps of filling the material into a container, the container having a base, an upright wall widening from bottom to top, and a deflection element adjoining the wall in an upper region of the container, moving the material in the container in a continuous circulatory movement along the base to the wall and along the wall upward by rotating the wall about a vertical axis of rotation, and moving the material along the deflection element by means of an air stream, which is introduced substantially from bottom to top through at least one air gap in a transition region from the wall to the deflection element and, in a region adjacent to the air gap, substantially tangentially with respect to the course of at least one of the wall and the deflection element. Further an apparatus for carrying out the process is described.

Abstract: An apparatus for treating particle-shaped material has a process chamber for accommodating and treating the material. A base is composed of guide plates which are placed one above the other in different planes and overlap one another and between which slots are arranged, via which process air can be directed into the process chamber with an essentially horizontal component motion. It is proposed to provide a vertical-adjustment device which interacts with the guide plates and by means of which the distance between the guide plates and thus the height of the slots can be varied.

Abstract: An apparatus is provided for treating particulate material with a coating medium, in particular for sugarcoating or film-coating pharmaceutical or food preformed pieces. The apparatus comprises a container drivable to rotate about a rotation axis, a spraying device for spraying the material with the coating medium and supplying means for supplying process air. The container comprises a bottom and an upstanding wall where the rotation axis of the container is substantially vertical and where an inclined return surface is arranged in the container. The return surface extends from an upper region of the container in the direction of an inner diameter region of the bottom.

Abstract: A device (10) for treating particulate material has a bottom (14) made of mutually overlapping guide plates (16-19), between which slots (21-24) are formed. The slots (21-24) are arranged in such a way, that two opposite flows directed toward each other are produced, which meet each along a central breaking-up zone (26). Two spray nozzles (28, 30) are arranged at opposite ends of the breaking-up zone (26). The slots (21-24) run so that as to be let together in the region of each nozzle (FIG. 1).

Abstract: An apparatus is provided for treating particulate material with a coating medium, in particular for sugarcoating or film-coating pharmaceutical or food preformed pieces. The apparatus comprises a container drivable to rotate about a rotation axis, a spraying device for spraying the material with the coating medium and supplying means for supplying process air. The container comprises a bottom and an upstanding wall where the rotation axis of the container is substantially vertical and where an inclined return surface is arranged in the container. The return surface extends from an upper region of the container in the direction of an inner diameter region of the bottom.

Abstract: An oscillating-piston engine, comprising a housing, in which several pistons configured as two-armed levers are arranged pivotably, respectively, around a pivot axis being parallel to a central housing axis and moving commonly in a revolution direction. The pistons comprise running surfaces on a side facing away from said housing inner wall, which are guided alongside at least one control cam, when the pistons revolve in the housing, of a centrally housing-fixed cam piece, in order to control pivot movements of the pistons in the revolution. The control cam is configured as an inner contour on the cam piece, alongside of which the pistons are guided supported to a side of a centrifugal force via the running surfaces, The cam piece comprises another inner contour configured as a control cam alongside of which the pistons are guided supported to a direction of the central housing axis via the running surfaces.

Abstract: A device for treating particulate product has a process chamber for receiving and treating the product. A bottom of the process chamber is constructed from substantially plane baffle plates overlapping each other with slots formed between said overlapping plates. Process air can be introduced into the process chamber via said slots between said plates with a substantially horizontal component of motion. Said baffle plates and the resulting slots are arranged in such a way that two opposite flows of incoming process air are produced. Said two opposite flows are directed along a substantially horizontal path and meet along a breaking-up zone and are then deflected to form an upwardly directed, substantially vertical flow.