Device and method for granulating a powder or a powder mixture
AssigneeGlatt Maschinen-und Apparatebau AG
InventorsJochen Thies, Reinhard Nowak
Life of this patent
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Abstract
Described is a device for granulating a powder to be granulated or a powder mixture to be granulated. The device includes at least one working vessel in which the powder to be granulated or the powder mixture to be granulated is provided, at least one mixer for mixing the powder to be granulated or the powder mixture to be granulated, at least one dosing device for granulating liquid, and at least one drive unit that includes a rotational speed range for providing a drive torque required for the mixer. The drive unit provides a uniformly high drive torque over its entire rotational speed range. Also described is a method for granulating a powder to be granulated or a powder mixture to be granulated using such a device.
Claims11
A device for granulating a powder to be granulated or a powder mixture to be granulated, comprising:
- at least one working vessel in which the powder to be granulated or the powder mixture to be granulated is provided,
- at least one mixer for mixing the powder to be granulated or the powder mixture to be granulated,
- at least one dosing device for granulating liquid, and
- at least one drive unit comprising a rotational speed range for providing a drive torque required for the mixer, wherein, the drive unit provides a uniformly high drive torque over its entire rotational speed range.
A method for granulating a powder to be granulated or a powder mixture to be granulated using a device, wherein the device comprises at least one working vessel in which the powder to be granulated or the powder mixture to be granulated is provided,
- at least one mixer for mixing the powder to be granulated or the powder mixture to be granulated, at least one dosing device for granulating liquid, and at least one drive unit comprising a rotational speed range for providing a drive torque required for the mixer, the method comprising:
- firstly mixing by the at least one mixer the powder to be granulated provided in the at least one working vessel or the powder mixture to be granulated provided in the at least one working vessel;
- and
- adding granulating liquid at the same time at least periodically,
- wherein shear forces can be varied by changing the rotational speed in the case of a torque which is constant or virtually constant over the entire rotational speed range in order to directly set the granulate properties.
Dependencies are inferred from the claim text.