Vintage Diagram Of A Kiln Stock Illustration

Vintage illustration diagram showing a kiln. Calcination and roasting of ores. Kilns are cylindrical shafts lined with fire brick and provided with a firegrate below. Calcination or calcining, refers to a thermal treatment process where inorganic, non-metallic solids i.e., minerals, ceramic powders are heated below the melting or fusion point for thermal decomposition, phase transition or for removal of a volatile fraction, including chemically bonded water. 1900s reference to engineering.