Lime: theoretical concepts of active lime, is a chemical properties and lively, strong ability to participate in the reaction, containing S (sulfur), low P (phosphorus) and other harmful impurities. It has the following main characteristics: volume density, porosity, large surface area, the reaction performance. It also has: CaO crystal fine: ≤1 wm, CaO content: ≥90%, lower S, P content: <0.02% and traces, SiO2 + Fe2O3 + Al2O3 content is low: <2% residual CO2 Low: ≤2%, etc. Characteristics of burnt lime light. Lime: As in the naturally occurring presence of porous limestone layer having poor performance and heat transfer characteristics of the rotary kiln when the temperature reaches 1250 ~ 1350 ℃ lime supplier, limestone surface will produce burnt lime kiln manufacturer shrinkage and cracking, so CO2 can not be sufficiently separated. At the same time how to sell lime kiln, high temperature also allows impurities slagging rate increases. Therefore, the limestone particle size selection, the impact on the lime burning is very large.