... . Raw material:limestone,clay, gypsum, iron ore, sand 3. Product type: 32.5R or 42.5N Portland cement in accordance with ... inlet, so as to increase the output of clinker.3) New technology will be adopted at the rotary kiln head.4 ... energy and investment.5)According to technology requirements of the new dry process rotary kiln, advanced computerized dcs control system is ...