Shell for an agitator of a vertical grinding mill

Abstract

A hybrid shell (3) configured to be installed on the upper surface of the blades of a screw conveyor or coil system corresponding to an agitation means (1) of a vertical grinding mill, reinforcing the areas of greatest wear, improving the durability and performance of said hybrid shell, reducing wear and increasing the availability of the vertical grinding mill, while reducing the energy consumption for rotating said agitation means (1) of a vertical grinding mill, comprising a steel insert (4), as a basic structural element, comprising an upper face (41) and a lower face (42); a lower arrangement (5) of rubber blocks extending at least partially on the lower face (42) of the steel insert (4) from its outer edge (43A); an upper arrangement (6) of rubber blocks extending at least partially on the upper face (41) of the steel insert (4) from its outer edge (43A);and a rubber piece (7) extending over the upper face (41) of the steel insert (4) between its inner edge (43B) and the upper arrangement (6) of rubber blocks; wherein the steel insert (4), the rubber blocks of the inner arrangement (5), and the rubber blocks of the upper arrangement (6) are joined together by fastening means (8); and wherein the rubber piece (7) defines an inner section (31) of the hybrid shell (3) and the upper arrangement (6) of rubber blocks defines an outer section (32) of the hybrid shell (3).