Cement kiln
HIGH TEMPERATURE ROTATING OVEN USED FOR PRODUCING CLINKER
Cement kiln emissions; Cement Kiln; Wet process (cement); Dry process (cement)
Cement kilns are used for the pyroprocessing stage of manufacture of portland and other types of hydraulic cement, in which calcium carbonate reacts with silica-bearing minerals to form a mixture of calcium silicates. Over a billion tonnes of cement are made per year, and cement kilns are the heart of this production process: their capacity usually defines the capacity of the cement plant.