Method and device for drying, separating, classifying and decomposing recoverable waste products

A process for drying, separating, classifying, and decomposing waste products from at least one of a waste degassing and gasification process, comprising:

• introducing solid waste products and waste gases wholly or partially in a funnel-shaped lower part of a shaft-shaped chamber;
• at least one of simultaneously and subsequently introducing air and the waste gases from the degassing and/or gasification process separately into the chamber from below under pressure;
• introducing the air into the chamber substantially axially and introducing the waste gases into the chamber substantially tangentially or radially, resulting in a rotationally symmetrical, fountaining eddying of the solid and gaseous substances in the chamber, the air is introduced in a truncated-cone-shaped floor of the chamber axially through a round, double-walled part of a discharge shaft and, in an area of the truncated-cone-shaped floor of the chamber, one or two truncated-cone-shaped components nested one inside another form one or two annular gaps that can be displaced with respect to one another and to the chamber floor so that the air is introduced axially through an annular gap and the waste gases are introduced tangentially through another annular gap;
• and
• subsequently or during continuous processing, downwardly discharging dried, separated, classified, and substantially decomposed products from the chamber.