There are many types of calciners. Although their structures and properties are different, their main functions are the same: to make the exothermic process of fuel combustion and the endothermic process of raw meal carbonate decomposition be suspended in the middle.Hardenability and Vacuum Heat Treatment of Carburized Steel It is carried out extremely quickly in a floating state or a fluidized state, so that the decomposition rate of the carbonate of the raw material entering the kiln is increased, thereby reducing the heat load of the kiln, increasing the operation cycle of the kiln, and improving the output quality. The temperature control of the calcinerVacuum Hardening Stainless Steel It is very important to the stability of the heat distribution and thermal system of the whole precalciner kiln system. For this reason, the author discusses several issues related to the temperature control of the calciner.Metallographic Inspection Knowledge of Bolt Quenching And Tempering The temperature of the calciner depends on the heat release rate of the fuel combustion process and the heat absorption rate of the raw meal decomposition process. When the heat release rate of fuel combustion is slow and the decomposition of raw meal is carried out under near-equilibrium conditions, the temperature of the calciner is in the range of 860 ~ 920°C, and the heat released by fuel combustion will be quickly transferred to the raw meal and absorbed by the decomposition reaction. However, when the fuel combustion rate is greater than the heat absorption rate of the raw meal decomposition process, the heat of fuel combustion is greater than the heat absorption required for raw meal decomposition, and the temperature of the calciner will exceed the equilibrium temperature range.Ion Nitriding vs Gas Nitriding