Briquetting of EAF Dust for its utilisation in metallurgical processes

作     者：Magdziarz, Aneta Kuźnia, Monika Bembenek, Michal Gara, Pawel Hryniewicz, Marek 

作者机构：AGH University of Science and Technology Faculty of Metals Engineering and Industrial Computer Science 30 Mickiewicza Av. Krakow30-059 Poland AGH University of Science and Technology Faculty of Mechanical Engineering and Robotics Department of Manufacturing Systems 30 Mickiewicza Av. Krakow30-059 Poland 

出 版 物：《Chemical and Process Engineering - Inzynieria Chemiczna i Procesowa》 (Chem. Process Eng.)

年 卷 期：2015年第36卷第2期

页      面：263-271页

核心收录：

学科分类：0830[工学-环境科学与工程（可授工学、理学、农学学位）] 080602[工学-钢铁冶金] 0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 0817[工学-化学工程与技术] 0806[工学-冶金工程] 08[工学] 0807[工学-动力工程及工程热物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学] 

主　　题：Zinc oxide 

摘      要：Dust generated at an electric arc furnace during steel production industry is still not a solved problem. Electric arc furnace dust (EAF) is a hazardous solid waste. Sintering of well-prepared briquetted mixtures in a shaft furnace is one of possible methods of EAFD utilisation. Simultaneously some metal oxides from exhaust gases can be separated. In this way, various metals are obtained, particularly zinc is recovered. As a result, zinc-free briquettes are received with high iron content which can be used in the steelmaking process. The purpose of the research was selecting the appropriate chemical composition of briquettes of the required strength and coke content necessary for the reduction of zinc oxide in a shaft furnace. Based on the results of the research the composition of the briquettes was selected. The best binder hydrated lime and sugar molasses and the range of proper moisture of mixture to receive briquettes of high mechanical strength were also chosen and tested. Additionally, in order to determine the thermal stability for the selected mixtures for briquetting thermal analysis was performed. A technological line of briquetting was developed to apply in a steelworks.