毛瑞，王飛，金海，茅沈棟

(江蘇省(沙鋼)鋼鐵研究院， 江蘇 張家港 215625)

摘要：轉(zhuǎn)底爐是當(dāng)前用于處理鋼鐵廠含鐵鋅塵泥工藝的典型代表，能有效利用塵泥中的鐵、碳和氧化鋅等物質(zhì)，生產(chǎn)金屬化球團(tuán)，同時(shí)產(chǎn)生副產(chǎn)物氧化鋅粉，具有較好的處理效果和經(jīng)濟(jì)效益，是未來鋼鐵企業(yè)含鐵塵泥處理技術(shù)發(fā)展的趨勢(shì)之一。基于轉(zhuǎn)底爐處理含鐵塵泥工藝，對(duì)轉(zhuǎn)底爐工藝涉及的諸多關(guān)鍵技術(shù)進(jìn)行分析和討論，結(jié)合轉(zhuǎn)底爐生產(chǎn)實(shí)踐和實(shí)驗(yàn)室研究成果，在轉(zhuǎn)底爐原料選擇、成型技術(shù)、優(yōu)化配礦、渣系優(yōu)化以及鋅的控制等方面提出建議，以期為轉(zhuǎn)底爐處理含鐵塵泥工藝的改進(jìn)和創(chuàng)新提供參考。

關(guān)鍵詞：含鐵塵泥；轉(zhuǎn)底爐；鋅；金屬化球團(tuán)

Key technology of treating iron-bearing dust and sludge by rotary hearth furnace process

MAO Rui，WANG Fei，JIN Hai，MAO Shen-dong

(Research Institute of Iron and Steel, Jiangsu Povince (Shasteel), Zhangjiagang 215625, Jiangsu,China)

Abstract：Rotary hearth furnace is a typical representative process used for processing dust and sludge containing iron and zinc from steel enterprise. It can effectively utilize iron, carbon and calcium oxide in dust and sludge to produce metallized pellet and oxidation of zinc powder. Rotary hearth furnace has a good processing effect and economic benefit, which will be the development tendency of treating iron-bearing dust and sludge for steel enterprise. In this paper, based on the process of treating iron-bearing dust and sludge by the rotary bottom furnace, many key technologies were analyzed and discussed. Reasonable suggestions on material selection, forming technology, burdening optimization, slag system optimization and control of zinc were put forward combined with production practice and laboratory research for rotary hearth furnace. Through this article, it is hoped to provide a reference for the improvement and innovation of the treatment technology of iron-bearing dust and sludge by the rotary bottom furnace.

Key words：dust and sludge containing iron；rotary hearth furnace；zinc；metallized pellet

來源：《鋼鐵》2020年第8期