Abstract:The large-scale, intensive, and intelligent development of the non-ferrous metal smelting industry has promoted the development of the fluidized roaster technology to large-scale, high-efficiency, and intelligent development. This article introduces the technological characteristics and structural parameters of a large-scale fluidized roasting furnace. In view of the deformation, smoke and air leakage problems of the early 109m2 fluidized roasting furnace, the 152m2 fluidized roasting furnace developed in the later stage has been optimized in terms of process parameters and furnace body structure, and adopts integral casting technology. Practice has proved that the 152m2 fluidized roasting furnace has stable running conditions, simple operation and advanced technical indicators. The future fluidized roasting furnace will further develop in the direction of high efficiency, low pollution and intelligence.