PLANT FOR PRODUCING A MULTI-COMPONENT SULPHATE-CONTAINING BINDER HAVING HIGH MECHANICAL PERFORMANCES,FROM GYPSUM AND/OR DERIVATIVES THEREOF,PROCESS FOR MANUFACTURING SUCH A BINDER AND RESULTING BINDER

摘要

The subject of the invention is a plant for producing a sulphate-containing binder from a pulverulent product. This plant comprises a metering hopper (19), means (1) for heating the pulverulent product and means (3) for cooling the heated pulverulent product. The heating means (1) and cooling means (3) are associated with grinding means suitable for obtaining the pulverulent product according to a particle size range specific to gypsums, and means (2) for maintaining a given saturation vapour pressure and a given vacuum inside said heating means (1). The heating means (1) are composed of a variable tilt and variable speed furnace equipped with a modular burner (8). The cooling means (3) are composed of a specific cooler designed so as to confine as much as possible the cooled pulverulent product and are capable of reducing any risk of hydration by contact of said cooled pulverulent product with ambient air.