Abstract: A nozzle ring assembly for use around a circular grinding path of a roller mill of the kind comprising a grinding table which is rotatable about a vertical axis, and grinding rollers urged against the grinding table. The nozzle ring assembly comprises a nozzle ring with circumferentially spaced guide vanes for directing air, in use, over the grinding path in a direction with a component substantially tangential to the grinding path. The nozzle ring also has a set of annular guide vanes which are disposed one above the other for directing air, in use, substantially horizontally over the grinding path.

Abstract: A vertical roller mill resting on a mill foundation is disclosed in which a rotatable grinding table having an endless grinding path is driven by a driving mechanism located beneath the grinding table and in which the grinding table rotates on bearing means which are mounted on generally vertical support means, the support means positioned beneath the grinding path of the grinding table to support the grinding table and to transmit grinding pressures and vibrations from the grinding table downward directly to the mill foundation while substantially avoiding transmission of the pressures and the vibrations to said driving mechanism.