Aggregate drying drum and drying method for dry-mixed mortar production line

The invention relates to the technical field of stirring equipment, in particular to an aggregate drying drum and a drying method. The aggregate drying drum for a dry-mixed mortar production line comprises a rotating cylinder and a lifting blade arranged on the inner wall of the rotating cylinder, and further comprises an aggregate scattering device, wherein the aggregate scattering device comprises a support component and multiple bent blades; the multiple bent blades are uniformly distributed on the peripheral section of the rotating cylinder by the support component; and each bent blade performs holding and lifting actions along with the rotation of the cylinder, so that the peripheral section of the whole rotating cylinder is uniformly distributed with curtains. The aggregate drying drum enables aggregate moisture to be quickly reduced, quickens the temperature rise to prevent materials from being bonded on the drum, improves the use effect of subsequent lifting blades, radically solves the problem of bonding the materials on the drum, improves the curtain effect in the drum, improves the heat efficiency of the drum, and can reduce the heat source consumption.