Microwaves - a vacuum drying plant for the drying of lumpy, powdery or granular material

摘要

Microwaves - a vacuum drying system (100) for the drying of lumpy, powdery or granular material (6), comprising– a vacuum vessel (11) with an upper inlet opening (102) and a lower outlet opening (104),– at least one microwave - generator (5a),– at least one microwave - coupling element (5b), the of the microwaves - generator (5a) is fed and in the interior of the vacuum vessel (11) opens,– a non-metallic drum (12) for receiving of the material (6), which in the vacuum container (11) disposed centrally and about a substantially horizontal axis of rotation is rotatably mounted, by means of a drive to a direction - and forth rotating movement can be driven, at their end faces is closed, in its lateral surface a non-closed opening which, by rotation of the drum (12) as desired, by the material inlet opening (102) or the outlet opening (104) is adapted to be brought, as well as on the inner lateral surface has at least one mixer element,– at least one ir - temperature measuring device (3) for measuring the temperature of the material (6) in the drum (12),– at least one adjusting (10) for measuring the humidity of the material (6) in the drum (12), and– a process control system for automatic control of the drying in a function of the temperature values supplied by the temperature measuring means and / or of the adjusting (10) are supplied by the humidity.