Device and method for carrying out chemical and / or physical reactions between a solid and a gas and installation for cement production.

Device for carrying out chemical and / or physical reactions between a solid and a gas, in particular for preheating, cooling and / or calcining fine-grained materials, with - at least one conduit (1) in a spiral and / or propeller, wherein by centrifugal forces suspension of gas-solid flow (4) of solid and flow (5) of gas and separates - at least one zone (2a) joined separation with the conduit end (1) a helical and / or spiral, to which are connected a conduit (3) solid to discharge the flow (4) of solid and a conduit (2) gas discharge flow (5) of gas wherein the separation zone is formed by a lower duct (2) of gas, wherein the zone (2a) of separation near the mouth of the duct (1) helical and / or spiral and of the duct (2) gas that is connected over the same diameter, and opening the conduit (1) in a spiral and / or helix for forming a helical flow tangentially and at an angle (α) with respect to the horizontal of at least 30 ° in the zone (2a) separation.