Heat treatment system for granular material - has planetary tubes with hollow shafts and nozzles directed onto material

摘要

The heat treatment system for granular material has a drum with a circumferentially arranged tubes for accommodating the material. Hollow shafts are arranged coaxially with the drum and the tubes and the system is driven by gravity. The hollow shafts connect the tubes with a source for gaseous treatment fluids. This planetary cooler ensures max. removal of chlorine compounds from the granular material by heat treatment. A section 11) of each hollow shaft (7) projects directly into the associated tube (3). The shaft has nozzles (12) directed towards the granular material within the tube (3). The shaft (7) can be made from several sections. The parts which connect the shaft (7) sections is situated outside the tube (3).