DUST RECYCLING TO ROTARY KILNS

摘要

A process and apparatus are described for recycling dust generated in rotary kiln processes such as cement manufacture. The invention resides in enriching the atmosphere in the kiln with oxygen so as to increase the heat generated and accommodate the introduction of recycled kiln dust. The oxygen enrichment and dust recycle are balanced so that the kiln operates to produce the same quality product as it did without either oxygen enrichment or dust recycle.