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 define the capacity of the cement plant. As the main energy-consuming and greenhouse-gas–emitting stage of cement manufacture, improvement of kiln efficiency has been the central concern of cement manufacturing technology.
Read more about Cement Kiln: The Manufacture of Cement Clinker, Early History, The Rotary Kiln, The Wet Process and The Dry Process, Preheaters, Precalciners, Ancillary Equipment, Kiln Fuels, Kiln Control, Cement Kiln Emissions
Famous quotes containing the word cement:
“Between married persons, the cement of friendship is by the laws supposed so strong as to abolish all division of possessions: and has often, in reality, the force ascribed to it.
—David Hume (17111776)