Title

EXPLORAÇÃO NAS PRÁTICAS PARA MANTER A OPERAÇÃO ESTÁVEL E LISO DE Alto forno SOB O NOVO ESTADO NORMAL

EXPLORATION ON PRACTICES TO MAINTAIN STABLE AND SMOOTH OPERATION OF BF UNDER NEW NORMAL STATE

Authorship

Zhongpping, Zou; Hao, Xie; Jingsong, Wang; Gang, Wang

Zhongpping, Zou

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Hao, Xie

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Jingsong, Wang

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Gang, Wang

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DOI

10.5151/2594-357X-30797

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Abstract

Under the new normal state, blast furnace outputneeds to be adapted to the market demand, however the limitation in blast furnace output has significant impact on blast furnace operation and is prone to cause inactive furnace hearth and higher fuel ratio. To address such problems, some practices to maintain stable and smooth operation of blast furnace in case of output limitation are proposed based on data analysis philosophy, which allows the blast flow and hence the top pressure to be determined based on the hot metal output, and adequate kinetic energy of blast supply can be assured by adjusting the tuyeres. Matching between the oxygen enrichment and the pulverized coal injection is also proposed based on theoretical flametemperature, and burden distribution cycle calculation method is proposed, whichoffersnew approach for analyzing the change in burden distribution pattern.

Keywords

Alto Forno, Limitação de saída, Operação estável e suave

Blast Furnace, output limitation, stable and smooth operation