Device for coating small solid bodies
AssigneeSantrade Ltd.
InventorsAxel Konig, Matthias Kleinhans, Janez Michelic
Life of this patent
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Abstract
A device is disclosed for improved coating of small solid particles with a melt of a material which solidifies at room temperature. The device includes a rotatable turbine body and conduits for supplying solid particles and molten material to the rotatable turbine body. The turbine body is rotated by a hollow drive shaft and is provided with a series of heating conduits extending through the drive shaft and the turbine body for heating the turbine body. The turbine body can be heated to a controlled temperature to maintain the molten material at a desired temperature by varying the temperature of a heating agent which is supplied through the heating conduits.
Claims13
A device for coating solid particles with a coating material which is solid at room temperature comprising:
- a housing;
- a rotatable turbine body mounted within the housing and including heating channels and a separate melt passage formed therein;
- a drive shaft connected to the turbine body for rotating the turbine body;
- a first conduit for supplying a melt of a coating material to the melt passage of the rotatable turbine body;
- and
- a second conduit for supplying solid particles to be coated to the rotatable turbine body, the melt passage arranged to conduct melt to the particles to coat the particles;
- the drive shaft being hollow to define therein a space accommodating a flow of heating agent to the heating channels to heat the turbine body independently of the melt and maintain the melt in a liquid state.
Dependencies are inferred from the claim text.