Resources Recycling (자원리싸이클링)
- Volume 4 Issue 1
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- Pages.60-68
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- 1995
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- 2765-3439(pISSN)
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- 2765-3447(eISSN)
Strength and Reduction Behaviour of Cold-bonded Pellet for Blast Furnace Burden using Iron-bearing Dust
함철 더스트를 원료로 한 고로용 비소성 펠릿의 강도 및 환원거동
Abstract
Iron-bearing dust which stems from steelworks were pelletized and bonded with portland cement in order to attempt to use for blast iurnace burdens. The characterist~cs of cold bonded dust pellet were investigated. It was found that the compression strength of cold bonded pellet contaning portland cement of 10 wt.% reached above 150kg/p by proper curing treatment. Direcl contad of carbon with iron oxides seems to greately enhance a reduction reaction and herewxth increased chances to lorn pores at high temperature environment. Tumbler strength, RDI, and swelling of cold bonded pellet were similiar to and/or better than those of iron ore sinter and fired pellet.
철강공정에서 발생하는 함철더스트에 시멘트를 첨가한 비소성 더스트 펠릿을 제조하여 고로용으로서의 특성을 평가하였다. 시멘트를 10wt.% 첨가한 펠릿은 적절한 양생조건하에서 150kg/p 이상의 압축강도에 도달하였다. 더스트 펠릿은 특히
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