Kalcineringsindretning og fremgangsmåde til brænding af kalksten eller dolomit

摘要

The invention relates to a calcining device, especially for burning limestone and/or dolomite, said device comprising a pre-heating unit (1), a rotary furnace (2) which is arranged behind the pre-heating unit (1) and comprises an inlet (3) and an outlet (4), a burner (5) for producing hot combustion gases for the rotary furnace (2), and a unit (12) for supplying additional air. Said burner (5) is arranged on the outlet (4) of the rotary furnace (2) and the unit (12) for supplying additional air is provided on the pre-heating unit (1).