Method for manufacturing a special prestressed granulated using a solid waste extrusion screw

The present invention relates to the technical field of solid waste management, particularly relates to a method for manufacturing specific types of granulated using a solid waste prestressed extrusion screw. Characterized in that: a nose cone nut, the cone nut over the top seat, Ⅰ mandrel, the mandrel Ⅱ, reamer spiral ring assembly, the method of manufacturing the key. The coil is prestressed by a top ring assembly reamer cone nut, the cone nut stress over the top conductive when the mandrel due to the work carried unstressed or less stress after the two-phase equilibrium, the mandrel can make long-term life.