The basic layout of a cement plant has been as above since the early nineteenth century. Two raw materials - one high in calcium and one low in calcium - are crushed, then finely ground together in a rawmill to make "rawmix". The rawmix is burned in a kiln with fuel to make clinker. The clinker is finely ground with a small addition of gypsum in a finish mill, producing the fine powder which is called cement.
© Dylan Moore 2014: last edit 08/02/14.