Screw capable of prolonging service life of granulator

The utility model relates to the technical field of screws, in particular to a screw capable of prolonging the service life of a granulator. The utility model provides a screw which has a cooling function and can prolong the service life of a granulator. A screw capable of prolonging the service life of a granulator comprises a connecting rod, a mounting rod, a fixing rod, threads, a water pipe and the like. The mounting rod is fixedly connected with a fixing rod, the fixing rod is provided with a connecting rod, the connecting rod is fixedly connected with threads, and the connecting rod is fixedly connected with a water passing pipe. Water is introduced into the screw through the water passing pipe, temperature control over the screw and materials can be achieved, a large amount of heat of the screw is absorbed through the water in the screw, the influence of the temperature on the screw is relieved, the influence of the high-temperature materials on expansion caused by heat and contraction caused by cold o