2005
DOI: 10.1016/j.powtec.2005.05.006
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Dust formation in Electric Arc Furnace: Birth of the particles

Abstract: The characterization of electric arc furnace (EAF) dust shows that bubble burst at the liquid steel surface is the principal source of dust emission. We have therefore developed an experimental device for studying this phenomenon. As in the case of the air-water system, the bubble-burst gives birth to two types of droplets: film drops and jet drops. The jet drop formation is observed with high-speed video. The film drop aerosol is collected on filters and, then, characterized by means of SEM, granulometric and… Show more

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Cited by 151 publications
(87 citation statements)
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“…At lower temperatures, ZnO will become more stable. However, we did not consider the free ZnO particles lost to the solid fraction because the particles formed through oxidation of Zn vapor are sub-micron-sized [8,9] and particles of this size are hard to capture using known dust capture technologies.…”
Section: Approximationmentioning
confidence: 99%
“…At lower temperatures, ZnO will become more stable. However, we did not consider the free ZnO particles lost to the solid fraction because the particles formed through oxidation of Zn vapor are sub-micron-sized [8,9] and particles of this size are hard to capture using known dust capture technologies.…”
Section: Approximationmentioning
confidence: 99%
“…Em todo o mundo, estima-se que 70% do PAE seja enviado para aterros industriais, enquanto que os 30% restantes são processados para recuperação de Zn e outros fins [7]. Conforme Guézennec [5], para cada tonelada de aço produzido são gerados entre 15 e 25 kg de PAE. A NBR 10004 [1], que estabelece a classificação dos resíduos sólidos, define que lodos ou poeiras provenientes do sistema de controle de emissão de gases empregado na produção de aço primário e fornos elétricos, no qual se enquadra o PAE, são classificados como resíduo classe I -Perigoso, k061, por conter cromo hexavalente, chumbo e cádmio.…”
Section: Pó De Aciaria Elétrica (Pae)unclassified
“…O mesmo é gerado durante a fusão da sucata de aço em fornos elétricos, onde os metais pesados são volatilizados, oxidados e, posteriormente, solidificados e retidos sob a forma de pó fino em filtros especiais instalados no sistema de limpeza do fluxo de gases dos fornos elétricos a arco [4]. A Figura 1 apresenta o esquema do mecanismo de formação do PAE na indústria siderúrgica Fonte: Adaptado de Guézennec [5].…”
Section: Introductionunclassified
“…3, б показана сферическая частица диамет-ром 25 мкм при увеличении в 2700 раз. Можно видеть, что она имеет гетерогенную структуру, характерную для оксидов железа [8,9]. В состав сферической час-тицы входят железо (87 %), углерод (3,7 %), кислород (8,8 %), цинк (0,5 %) (рис.…”
Section: исследование пылиunclassified