Date：2014-10-09 00:51:13 ?? Source：Clirik
Cement clinker is a kind of cooled semi-finished product after burn to some or all melted, which mixing limestone, clay and iron as the main raw material according to appropriate proportion. Portland cement clinker is mainly composed of CaO, SiO2, Al2O3, Fe2O3, ground into a fine powder till the appropriate proportion of income to partially molten silicate hydraulic cementitious material for the main mineral component. Wherein not less than 66% of the mineral calcium silicate, calcium oxide, and silicon oxide is not less than 2.0 mass.
After the completion of the raw material in the cyclone preheater and precalciner, the next process is carried into the clinker kiln firing. Carbonate further rapid decomposition in a rotary kiln and a series of solid-phase reaction of cement clinker minerals. As the temperature increases past when the material becomes liquid minerals dissolved in the liquid phase and the reaction generates a large number (clinker). After the clinker burning, the temperature began to decrease. Finally, cement clinker cooler by unloading the kiln clinker cooler temperatures to the downstream transport, storage libraries and cement mill can withstand temperatures of hot clinker while recovering sensible heat, improving thermal efficiency and clinker quality system.
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