Retrofits in planetary cooler and rotary kiln aperfeicoado

摘要

An improved cooler tube structure for a rotary kiln is disclosed. In construction, the cooler tube includes combined means for lifting and conveying material exiting from the kiln through the cooler tube. This combined means is selectively positioned at a predetermined distance away from the material inlet opening into the cooler tube. The cooler tube further includes separate means for conveying material exiting from the kiln through the cooler tube substantially without lifting it. The separate means is advantageously positioned upstream of said combined lifting and conveying means in relation to the direction of material flow through the cooler tube.