Process and mechanism of preparing metallized blast furnace burden from metallurgical dust and sludge-Reference-Cited by-同舟云学术

Process and mechanism of preparing metallized blast furnace burden from metallurgical dust and sludge

Published:2024-04-29 Issue:1 Volume:14 Page:
ISSN:2045-2322
Container-title:Scientific Reports
language:en
Short-container-title:Sci Rep

Author:

Gao Xing,Chai Yifan,Wang Yici,Luo Guoping,An Shengli,Peng Jun

Abstract

AbstractMetallurgical dust and sludge are solid waste resources with recycling value. In recent years, rotary hearth furnace has become the most important means to treat metallurgical dust and sludge because of its wide range of raw materials and strong treatment capacity. In this study blast furnace ash and converter sludge were selected as the research objects, and high-quality metallized pellets were prepared based on the rotary hearth furnace process. The strength changed of pellets, the reduction process of iron oxides and the removal process of zinc during the roasting of pellets in rotary hearth furnace were studied. To explore the reasonable roasting condition for preparing metallized pellets in rotary hearth furnace. The optimum roasting temperature of the pellets was 1250℃ and the roasting time was 25 min. The compressive strength, metallization rate and dezincification rate of metallized pellets reached 1361N, 97.44% and 95.67%, respectively. The efficient resource utilization of various metallurgical dust and sludge is realized.

Funder

Fundamental Research Funds for Inner Mongolia University of Science &Technology

National Key Research and Development Program of China

the Major Science and Technology Project of lnner Mongolia Autonomous Region

the Program for Young Talents of Science and Technology in Universities of lnner Mongolia Autonomous Region

Publisher

Springer Science and Business Media LLC

Link

https://www.nature.com/articles/s41598-024-60425-8.pdf

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