1.Clinkers can be evenly distributed inside the general section. The cooling drum is short, but the clinkers can be cooled to 200-300℃ and they can be even cooled to less than 200℃ for dry kiln if it’s better designed.
2.The secondary air enters into the kiln evenly around the rotary kiln which will not cause vortex and is beneficial to the mixing of fuels and the air.