Analysis Design and Laboratory Construction of Metallurgical Dust and Mud Treated by Rotary Hearth Furnace
Rotary hearth furnace is the main process of recycling iron-bearing dust and mud resources in iron and steel enterprises.In the process of rotary hearth furnace,there are demands for testing and analysis of raw materials,process products,metallized pellet products and by-products.According to the inspection requirements,this paper summarized the analysis and testing standards of materials above and the corresponding equipment configuration.In addition,the detection necessity of total iron content,zinc content and chlorine content was espe-cially discussed.Total iron content is an important index to reflect the quality of metallized pellets.As a trace harmful element in metallized pellet products,zinc element will circulate into blast furnace,converter or electric furnace to cause many adverse effects.However,the higher the zinc content in the by-product crude zinc powder,the higher its grade.Chlorine is a harmful element that can adversely affect the smelting process in the circulation of materials.Based on various standards and related researches,the detection methods of the above three elements were summarized,and the suggestions on the selection of detection methods in industrial production were put forward according to the actual demand of production.Finally,according to the engineering design experience,the construction scheme of rotary hearth furnace laboratory was put forward.
rotary hearth furnaceanalysis and inspectiontotal iron contentZinc contentchlorine contentlaboratory construction