Method and apparatus for the production of cement clinker low in alkali from alkali-containing raw material

摘要

A method for the production of low alkali-cement clinker from alkali- containing raw material comprising a preheating step, a deacidification step and a sintering step utilizes a portion of the alkali-containing exhaust gases from the sintering step which are mixed with deacidified combustion gases from the deacidification step and reintroduced into the system in contact with the raw material to preheat and precalcity the raw material in a plurality of cyclones.