| 摘要 |
<p>The invention relates to a method for manufacturing a cement clinker in a facility including: - a rotary furnace (1), - a cyclone preheater (2) receiving the fumes from said rotary furnace; - an air blowing clinker cooler (4), and at least one heat exchanger (9), referred to as a first heat exchanger. According to the method of the invention: - the raw materials are preheated and decarbonated in said cyclone preheater (2); - the clinker, coming out of the furnace, is cooled in said clinker cooler (4); a first portion (5) of the hot air generated by said clinker cooler, or so-called secondary air, is directed to the rotary furnace (1) to be used as combustion air; a second portion (6) of the hot air generated in said clinker cooler, or so-called tertiary air, is directed and carried separately from the first portion to a place in the facility where fuel is burned; and a third portion (7) of hot air generated in said clinker cooler, or so-called excess air, is carried into at least said first heat exchanger (9) for the purpose of recovering power to produce electricity. According to the invention, a second heat exchanger (10) coacts with the tertiary air (6) in order to heat a receiving fluid from a fluid circuit (12) common to said first heat exchanger (9) and said second heat exchanger (10). The invention also relates to such a cement clinker manufacturing facility.</p> |
