Self-cleaning drying drum for asphalt mixture plant mixing hot regeneration equipment

The invention belongs to the field of drying drum equipment, and particularly relates to a self-cleaning drying drum for asphalt mixture plant mixing heat regeneration equipment, which comprises a rack, a drying drum, stirring blades, an electromagnetic field generator and a detection device, the stirring blades comprise a plurality of material raising blade groups which are arranged in the drying cavity at intervals in the material flowing direction, each material raising blade group comprises a plurality of material raising blades which are circumferentially distributed in the drying cavity, and each material raising blade comprises a material raising chain provided with a magnetic chain link; the electromagnetic field generator is arranged on the rack and comprises a plurality of electromagnetic coil sets arranged at intervals in the material flowing direction, and each electromagnetic coil set comprises a first electromagnetic coil and a second electromagnetic coil which are arranged at intervals; the det