Kiln Ring Formation International Cement Review
2008-1-2 · Kiln Ring Formation. We are experiencing a ring at the 5-7m mark from the outlet after running the kiln for about a week. Our kiln is 50m ling and 3.8m diameter. Kiln feed fineness is around 19% residues on 90micron sieve, there has been no change in alkali and sulfur content.