Machines and machine parts for the cement, lime, gypsum, ceramic, refractory, iron and steel and chemical industries, for mining and the power industry, particularly mills, crushers, separators, precipitators; devices and equipment for mixing, homogenizing, storing, dosaging, sorting, fragmenting, conveying, packing and loading of solid materials, namely, mixers, homogenizers, dosagers, sorters, fragmenters, conveyors, packers, and loaders of solid materials