Patent ID: 6663030
Filing Date: 2003-12-16
Classification: B02C

Abstract:
A grate segment fastening system for an ore comminuting machine, comprising:a grate, including a top surface and a bottom surface opposite the top surface, wherein the top surface and the bottom surface are separated by a grate thickness, the grate being defined in use by an axis end, and a circumferential end opposite the axis end; wherein the grate is further defined by a first lateral surface, and a second lateral surface opposite the first lateral surface, the first lateral surface further comprising a raised mounting portion wherein at least one mounting bore extends through the body of the raised mounting portion, a plurality of throughput apertures extending through said grate from the top surface to the bottom surface and, a grate holder, including a top surface and a pulp lifter contact surface, opposite the top surface, the grate holder being defined by an axial end, and a circumferential end opposite the axial end, an anchor bore extending from the top surface of the grate holder to the pulp lifter contact surface, aligned mounting bore extending at least partially into a side mounting surface of the grate holder, and; a threaded member insertable into the at least one mounting bore of the first lateral surface of the grate and the aligned mounting bore on the grate holder.