MOUNTING ARRANGEMENT FOR AUXILIARY BURNER OR LANCE

摘要

A cooled mounting block (14) for an arrangement of a supersonic burner or lance (10) used in an electric arc furnace is designed to rest on a step (24) between a water-cooled side wall (23) and the hearth (21) of the furnace. The mounting block (14) comprises a plurality of fluid cooling conduits (47) surrounding a mounting aperture which is formed through the block (14) and adapted to mount the lance (10) and has a width approximately equal to the width of the step. The lance (10) is mounted by passing it through an aperture in the water-cooled side wall (23) aligned with the mounting aperture in the mounting block (14).