| 摘要 |
The invention relates to a continuous system for the heat treatment of divided solids, combined with a gas-solid reaction for the debacterisation especially of food products, such as herbs, spices, powders etc., said system being of the type consisting of: a unit (2) for supplying the product; a debacterisation unit (3) consisting of a fluidised bed moving the particules by means of vibration, associated with a feed of steam or other gas; a cooling drying unit; and a packaging unit (4). Said system is characterised in that the debacterisation unit (3) comprises a vibro-fluidised stepped bed (5) for enabling the transport of the product (6) that is carried out successively according to a generally horizontal first transport phase (h), and at least one second vertical transport phase (V) during which steam or another gas is injected, acting in such a way as to decontaminate the product as it moves from the horizontal phase (H) to the vertical phase (V) and to the following horizontal phase (H). |
