Abstract: The invention relates to a device for granulation of an ejected material form at least one nozzle (7), in particular a thermoplastic plastic, with a perforated plate (2) comprising the nozzles (7). A blade head (10), supporting several blades (11) lies opposite the same, fixed to a shaft (9) which is rotatably driven by a motor (13). The motor (13) is suspended such as to be displaced relative to the housing (1) by means of a suspension (15), however the above is suspended in such a manner that displacement is only possible in the direction of the axis (8) of the shaft (9) and not in a radial direction. Said suspension (15) comprises at least one membrane (14) which suspends the motor (13) on the granulator housing (1). The motor (13) can be adjusted relative to the perforated plate (2) by means of an adjuster device (27), such that the desired pressure of the blade on the perforated plate (2) is maintained. The excised granulate particles are drawn out of the housing (1) by means of coolant.

Abstract: A backflushable filtering apparatus for a molten material, particularly for a plastic melt, comprises a housing (1) in which a sieving arrangement (17) is provided which includes at least two sieving sections (16) separated from one another. The melt to be filtered is supplied to the sieving sections (16) through at least one distributor (3). The distributor (3) includes at least one control body (9) for backflushing which is moveable within a housing (53) that is provided with an inlet opening (4) for the material to be filtered. The control body (9), in a filtering position, unblocks the influx of material to be filtered to all sieving sections (16) through connection channels (23). However, in a backflushing position, the control body (9) interrupts the influx of material to the filtering section (16) to be backflushed and interconnects the connection channel (23) of the sieving section (16) flushed back with a discharge channel (28) located in the control body (9).

Abstract: A device for the preparation of plastics material for recycling purposes has a container (1) with an upper inlet opening (10) for the material. In the container (1), at least one tool (14) rotates about the vertical container axis. This tool feeds the treated material through an outlet opening (17) which is arranged at the bottom of the container (1) and to which the housing (19) of at least one screw (21, 22) is connected. That side wall (28) of the feed opening (18) at which the tool (14) discharges defines a widening (36) extending continuously towards the screw axis. This widening (36) extends over part of the circumference of the screw turns (30) so that the screw-side edge of this widening (36) forms an uninterrupted shearing edge (39) co-operating with the screw turns (30).

Abstract: A device for the preparation of plastics material, in particular thermoplastic plastics material, has a receiving container (1) for the material, the interior of the receiving container (1) having tools (21) provided therein which are arranged on a carrier disc (9). The tools are driven by a shaft (4) for rotation about the, in particular vertical, axis (8) of the shaft (4). At least one screw (17) is provided for the removal of the material out of the receiving container (1). The screw housing (16) has a feed opening (27) which is connected with respect to flow to a discharge opening (15) in the container (1), which discharge opening (15) is situated at a lower level than the carrier disc (9) and the tools (21) carried by it. Further moved tools (12), which convey the material into the discharge opening (15), are provided in the receiving container (1) below the carrier disc (9).

Abstract: A device for treating plastics material, in particular thermoplastic plastics material, has a receiving container (1) which has a base (15) and lateral walls (14). In the receiving container at least [one] disc (17) is arranged close to the base (15), and is driven by a vertical shaft (18) so as to rotate about its axis and carries tools (22), as a result of which a circulating movement about the axis of the shaft (18) is imparted to the material present in the receiving container (1). At least one blade (26) which projects beyond the edge of the disc (17) in the direction towards the lateral wall (14) is fastened to the said edge of the disc (17) adjacent to the lateral wall (14). The blade is inclined with respect to the horizontal plane in such a way that the plastics material moved by the tool (22) or the tool carrier (16) during its circulation is given an upwardly directed movement component.

Abstract: A device for the preparation of, preferably thermoplastic, plastics material for recycling purposes has a container (1) in which at least one rotating mixing and/or comminuting tool (14) is arranged. The material thus treated is fed through an outlet opening (17) which is arranged at the bottom of the container (1) and to which the feed opening (18) of a housing (19) is fluidly connected. In this housing are arranged at least two screws (21, 22) which are jointly charged with material. The diameter (D) of the container (1) and the diameter (d) of each of the screws (21, 22) are in the relationship D=103{square root over (d2K)}, where D is the inner diameter of the circular cylindrical container (1) or the inner diameter of a hypothetical circular cylindrical container converted to the same capacity and having the same effective height, d is the screw diameter, and K is a constant greater than or equal to 50.

Abstract: A backflushable filtering apparatus for a molten material, particularly for a plastic melt, comprises a housing (1) in which a sieving arrangement (17) is provided which includes at least two sieving sections (16) separated from one another. The melt to be filtered is supplied to the sieving sections (16) through at least one distributor (3). The distributor (3) includes at least one control body (9) for backflushing which is moveable within a housing (53) that is provided with an inlet opening (4) for the material to be filtered. The control body (9), in a filtering position, unblocks the influx of material to be filtered to all sieving sections (16) through connection channels (23). However, in a backflushing position, the control body (9) interrupts the influx of material to the filtering section (16) to be backflushed and interconnects the connection channel (23) of the sieving section (16) flushed back with a discharge channel (28) located in the control body (9).

Abstract: A backflushable filtering apparatus for a molten material, particularly for a plastic melt, comprises a housing (1) in which a sieving arrangement (17) is provided which includes at least two sieving sections (16) separated from one another. The melt to be filtered is supplied to the sieving sections (16) through at least one distributor (3). The distributor (3) includes at least one control body (9) for backflushing which is moveable within a housing (53) that is provided with an inlet opening (4) for the material to be filtered. The control body (9), in a filtering position, unblocks the influx of material to be filtered to all sieving sections (16) through connection channels (23). However, in a backflushing position, the control body (9) interrupts the influx of material to the filtering section (16) to be backflushed and interconnects the connection channel (23) of the sieving section (16) flushed back with a discharge channel (28) located in the control body (9).

Abstract: A backwashable filtering device for thermoplastic plastics material comprises a housing (1) in which at least one feed channel (2) is provided for the material to be filtered and at least one delivery channel (3) is provided for the filtered material. At least one carrying body (4) is arranged in the housing, carries at least two nests of screens (8, 9) and is displaceable in the housing between a filtering position and at least one backwashing position. In the filtering position, distribution chambers (14, 15) arranged on the inflow side of the nests of screens (8, 9) are fluidically connected to at least one feed channel (2), and collecting chambers arranged on the outflow side of the nests of screens (8, 9) are fluidically connected to at least one delivery channel (3).

Abstract: A device for the preparation of plastics material, in particular thermoplastic plastics material, has a receiving container (1) for the material, the interior of the said receiving container (1) having tools (21) provided therein which are arranged on a carrier disc (9). The tools are driven by a shaft (4) for rotation about the, in particular vertical, axis (8) of the shaft (4). At least one screw (17) is provided for the removal of the material out of the receiving container (1). The screw housing (16) has a feed opening (27) which is connected with respect to flow to a discharge opening (15) in the container (1), which discharge opening (15) is situated at a lower level than the carrier disc (9) and the tools (21) carried by it. Further moved tools (12), which convey the material into the discharge opening (15), are provided in the receiving container (1) below the carrier disc (9).