Device for building-up and discharging an annular dump of bulk material

Apparatus for removing and building up of bulk material from and onto heaps on a circular storage site, comprising a foundation having a vertical axis, a circular support fixedly mounted on said foundation in concentric relation with respect to said vertical axis for receiving a load in bearing and rotating relation thereon, a frame mounted on said support for rotation therewith about said vertical axis, a central column mounted on said frame in generally coaxial relation with respect to said vertical axis and being rotatable with said frame about said vertical axis, a discharge hopper having an unobstructed upper receiving end, means for supporting said hopper in coaxial relation with respect to said vertical axis and independently of said central column, wherein said frame and column are rotated independently of said hopper, a material removal device mounted for rotation with said column and frame for removing said material from a heap and discharging it into said hopper without obstruction of said material by said hopper supporting means, and dumping means mounted on said column for independent rotation relative thereto and above said material removal device for selectively dumping material onto a heap for the removal therefrom by said removal device, said frame including parallel supports that extend generally parallel to the longitudinal axis of said material removal device, a structure joined to said supports on said frame and supporting said column thereon, wherein said column and frame are rotatable on said circular support.