Abstract：Dust and sludge containing Zn can not be effectively recovered and reused in the process of ironmaking and steelmaking, which leads to serious resource wastage and environmental pollution. The rotary hearth furnace (RHF) process is proved to be successful for dealing with dust and sludge containing Zn and Pb in American and Japan. RHF process with capacity of 2×200 kt/a was introduced in Rizhao iron and steel Corporation. Its characteristics were as follows, taking cold bonded pellet containing carbon as the material of RHF, coal gas from twin zone gas furnace as heat source of RHF, air and gas preheated for reusing RHF gas waste heat and the metallized pellets used for coolant in converter process. Through trial production for several months, the Rizhao RHF process is successful commercials. Its production practice shows that RHF can effective recovery valuable metal from dust and sludge of steel plant, metallized pellets can keep original shape, good strength, and about 80% of percent metallization. The successful RHF process would promote the development of RHF in China.
收稿日期: 2011-02-21
出版日期: 2012-03-20
引用本文:
许海川，周和敏，齐渊洪，谢国海. 转底炉处理钢厂固废工艺的工程化及其生产实践[J]. 钢铁, 2012, 47(3): 89-93.
XU Hai-chuan1,ZHOU He-min1,QI Yuan-hong1,XIE Guo-hai2. Engineering and Productive Practice on Rotary Hearth Furnace for Steel Dust and Sludge. Iron and Steel, 2012, 47(3): 89-93.
2012, Vol. 47 
