At present, fertilizers are granulated mostly through the following processes: granulating by a rotary drum, granulating through
slurry spraying, granulating by a high
tower, granulating through ammonification, granulating through
extrusion and the like; however, large grained fertilizers with the grain diameters of more than 2 cm are very difficult to manufacture through the processes. The invention provides large grained
fertilizer granulation equipment. Raw materials are adopted to be fused into liquid at a high temperature, liquid fertilizers fused at the high temperature, which are loaded in a
bunker trolley, are filled in dies on a
machine in sequence so as to conduct the cooling formation, and the dies are opened by a die closing frame
system to eject the formed
fertilizer particles to be conveyed outside the
machine. Spherical, square and cylindrical large grained fertilizers with the grain sizes of more than 2 cm can be manufactured by the large grained
fertilizer granulation equipment. The fertilizers manufactured by the large grained fertilizer
granulation equipment has the advantages that the rate of finished products is high, the
drying operation is omitted, the appearance is attractive, the compression strength is high, the resistant transportation capability is achieved, and no soil hardening phenomenon exists.