Results of development of processing technology of zinc agglomerated cakes by waelz-process on large-sized (60,0х4,0) waelz-furnaces in JSC “Chelyabinsk zinc plant” are described. Technical decisions on improvement of technology and waelzprocess equipment are resulted. In the course of development following technical and economic indices are reached: productivity of the furnace 320 t/day, campaign of the furnace 412 day, natural gas is used basically only at furnace start-up.