Device useful for fracturing polycrystalline silicon, comprises pair of rollers, many fracturing dental units, which are present on outer circumferential surface of rollers and exhibits many fracturing teeth and mounting plates

摘要

Device (1) for fracturing polycrystalline silicon comprises: a pair of rollers (3), which rotate against each other directed about parallel axes (4); and many fracturing dental units, which are present on the outer circumferential surface of the rollers, and exhibits a number of fracturing teeth (5) and mounting plate, which attaches the fracturing teeth on the outer circumferential surface of the rollers. The fracturing teeth exhibits brims, whose diameter widens at its end and the mounting plates are formed as stripes in the longitudinal direction of the rollers. Device (1) for fracturing polycrystalline silicon comprises: a pair of rollers (3), which rotate against each other directed about parallel axes (4); many fracturing dental units, which are present on the outer circumferential surface of the rollers, and exhibits many fracturing teeth (5) and mounting plates, which the fracturing teeth attach on the outer circumferential surface of the rollers. The fracturing teeth exhibit brims, whose diameter widens at its end. The mounting plates are formed as stripes in the longitudinal direction of the rollers, in which many mounting holes for the fracturing teeth are formed in the longitudinal direction, and are mounted on the rollers. The tips of fracturing teeth on the rollers extend outwardly and radially from the mounting hole, so that the brims are clamped between the mounting holes and the rollers. The device fractures the fragments of polycrystalline silicon between the rollers. INDEPENDENT CLAIM is also included for producing fractured fragments of polycrystalline silicon using the above device.