Solid material feeding device

The utility model discloses a solid material feeding device which comprises a storage container provided with a rotating device, a screw conveyor system, a sensor and a controller. The solid material feeding device effectively solves the problem of directly feeding the solid material with high dry matter content, the solid material is directly fed through the pumpage of the pump for reaction without being diluted with liquid in the device, so that the reaction efficiency is greatly improved, the additional project investment bringing about the incased reaction volume because of the solid material dilution with liquid is reduced; and the yield is also greatly improved due to the high dry matter content.