METHOD FOR CONTROLLING A SULPHUR, HALOGEN AND/OR ALKALINE CIRCUIT AND DEVICE FOR PRODUCING CEMENT CLINKERS FROM A CALCINED RAW MEAL

摘要

Method for controlling a sulfur, halogen and / or alkali cycle (152) during the production of cement clinker from a calcined raw meal in a furnace (144) with the formation of flue gas, wherein CaCO sub 3 / sub is converted to CaO in a calciner (108) with the separation of concentrated CO sub 2 /sub in order to obtain calcined raw meal, a first portion of calcined raw meal is transferred into the furnace (144), CaO from a second Partial amount of calcined raw meal is converted back into CaCO sub 3 /sub in a carbonator (136) with reaction with CO sub 2 /sub contained in the flue gas and CaCO sub 3 /sub from the carbonator (136) is transferred into the calciner (108), wherein when the first portion of calcined raw meal is transferred into the furnace (144), the calcined raw meal and flue gas are brought into contact with one another to remove sulfur, halogens and / or alkalis from the To bind flue gas in the calcined raw meal en, and device for producing cement clinker from a calcined raw meal using a method according to at least one of the preceding claims, wherein the device comprises a furnace (144), a calciner (108), a carbonator (136) and a separator (134) for Has binding of sulfur, halogens and / or alkalis from flue gas in calcined raw meal.