The invention relates to a
sludge treatment system. The
sludge treatment system comprises a transmission device, a water removal structure and a
drying device, wherein the
drying device comprises a furnace body, a feeding device, a material receiving device, a
gas supply device and a stirring device, wherein the feeding device is used for feeding materials into the furnace body, the material receiving device is used for collecting dried materials in the furnace body, the
gas supply device is used for introducing external hot gas into the furnace body through a first gas inlet, and the stirring device is used for stirring and
grinding the materials. When the materials are dried, hot gas is introduced into a furnace
body cavity through the first gas inlet, a second rotating shaft rotates to drive a stirring
assembly on the second rotating shaft to continuously stir the materials along the radial and axial directions of the second rotating shaft, and then the materials can roll in the furnace body along the radial and axial directions of the second rotating shaft, so that the stirring time of the materials is prolonged, and the heat
convection area between the materials and hot gas is increased; and besides, the materials can be ground into the materials with relatively
small particles by the stirring
assembly, so that the heat
convection area between the materials and hot gas is further increased, and the
drying efficiency and drying effect of the materials are improved.