Polyester degradable plastic color master batch granulation system and processing method thereof

The granulation system comprises an extruder, a granulation mechanism and a water cooling tank, the extruder is provided with a feed hopper and an extrusion port, the extrusion port extends into the water cooling tank from the bottom end of one side of the water cooling tank and is connected with the granulation mechanism, the granulation mechanism comprises an extruder, and the extruder is connected with the water cooling tank. The extruder is communicated with the extrusion opening, a plurality of extrusion holes are formed in the extruder, a cutting mechanism is arranged on the extruder and comprises a first rotating motor installed at the bottom end of the water cooling tank, and an output shaft of the first rotating motor extends into the water cooling tank and is fixedly provided with a first rotating shaft. Through the design of the water cooling tank, cooling water is contained in the water cooling tank, particles are rapidly cooled and solidified through the cooling water, and the particles are block