based on the working principle and process characteristics of drum spray granulation, liquid sulfur and cooling water are pumped through pipelines to the drum granulator, and sprayed out in an atomized state from several nozzles distributed along the axial direction of the drum. atomized sulfur freeze and become seed, then coated with sprayed sulfur, seeds become bigger and bigger with rotary of drum, resulting in the formation of gradually increasing spherical particles; atomized cooling water allows particles sprayed with liquid materials to quickly cool and solidify. the injected cooling water is converted into water vapor by the sensible heat and latent heat of solidification of the material, and sucked out by an draught,based on the working principle and process characteristics of drum spray granulation, liquid sulfur and cooling water are pumped through pipelines to the drum granulator