Rotary drum type material drying device of coal gangue sorting machine

The utility model relates to a rotary drum type material drying device of a coal gangue sorting machine, which comprises a feeding hopper, an outer drum, a drying drum, a heat supply rotary shaft, an air heater, a U-shaped hot air pipe, an angle adjusting mechanism, a feeding groove, a heat supply shaft V-shaped connecting frame, a driving motor and a bottom frame. In the rotating process of the drying roller, the heat supply rotating pipe can dry materials in the drying roller, a drying area is expanded to the whole roller through the double-funnel-shaped hot air nozzles, drying is uniform, the drying efficiency is improved, the working angle of the device can be adjusted at any time through the rotating hydraulic cylinder due to the arrangement of the angle adjusting mechanism, and the working efficiency is improved. The problems that the drying process is uncontrollable and the final moisture content of materials does not reach the standard are solved. 本实用新型涉及一种煤矸分选机旋转滚筒式物料烘干装置，包括上料斗、滚筒外筒、烘干滚筒、供热旋转轴、热风机、U型