1. The shell of kiln use four layer refractory in vertical masonry, good effect of thermal insulation, the temperature of shell will be controlled higher 60℃ than environment, save energy remarkably.
2. Minimum decrepitation of solid products and minumum erosion of refrectory linings due to slight movement of particles relative to each other
3. Use of alternative fuels like low volatile coal, petroleum coke, lignite etc.
4. Use of alternate raw materials like bauxite, laterite, iron ore, Lime, Sea Shells etc.
5. Less cover area, because the vertical kiln in vertical layout, feeding use the single bucket elevator in high angle layout, each functional area is decorated compact, greatly reduces the cover area.
6. Simplicity of construction and operation, Low initial cost
7. High thermal efficiency & high volumetric efficiency