When lime kiln combustion, can be different according to their entire process kiln is divided into three regions: 1. Preheating section, the use of waste heat from the kiln gas limestone kiln anyone to preheat the decomposition temperature; 2. burning off, heated to the decomposition temperature of limestone by the heat of combustion of the fuel decomposition reaction here; 3. cooling section, where the lime is fed into the kiln firing air for cooling, which will be used for the fuel for combustion preheated air. To calculate the lime kiln reaction volume, you must know the material in the kiln residence time of each segment. Residence time depends on a number of factors: the size of the block, such as limestone, limestone physical and chemical properties, thermal cut body and the temperature difference between the materials, the surface movement of the material gas speed. Limestone residence time in each section can be calculated based on the heat transfer theory. Half a lime kiln gas kiln and mixing two, the calculation method is similar. Activity type lime mixture is anthracite coke as fuel for burning limestone. Once the reaction mass calculated residence time in the kiln, the need to consider the residence time of the fuel in the kiln, but also consider the fuel in the furnace volume occupied. The above article by Henan YuFeng Heavy Machinery finishing post!