The utility model discloses an
industrial waste residue composite cementing material preparation
system which comprises a first calcining furnace, a kaolin feeding hole and a
bauxite feeding hole are formed in the first calcining furnace, the first calcining furnace is connected with a first mixing kettle, and a
coal ash feeding hole and a 10%
sodium hydroxide solution feeding hole are formed in the first mixing kettle; the outlet end of the second calcining furnace is connected with the inlet end of the dehydrating
tower, the outlet end of the dehydrating
tower is connected with the inlet end of the second calcining furnace, the second calcining furnace is provided with a
sodium dihydrogen
phosphate feed port and a
urea feed port, and the second calcining furnace is connected with the second mixing kettle; the second mixing kettle is provided with a
red mud feeding hole, a
coal gangue feeding hole, a
metallurgical slag feeding hole and a glass water feeding hole; and the second mixing kettle is sequentially connected with the air furnace, the
grinding kettle and the finished product bin. According to the utility model, the stockpiling of industrial
solid wastes can be reduced, the environmental
pollution can be effectively reduced, and the problem of infrastructure material shortage can be effectively relieved on the premise of ensuring the
engineering quality.