Title

OPERATION OF THE BLAST FURNACE N.3 CSN WITH HIGH RATES OF COAL INJECTION

OPERATION OF THE BLAST FURNACE N.3 CSN WITH HIGH RATES OF COAL INJECTION

Authorship

Monsôres, Andre Jose de Souza; Silva, Agenor Medrado da; Fernandes, Heracliton Antonio; Noblat, Sebastião Jorge Xavier; Aguiar, Francisco Nobrega de

Monsôres, Andre Jose de Souza

I am this author

Silva, Agenor Medrado da

I am this author

Fernandes, Heracliton Antonio

I am this author

Noblat, Sebastião Jorge Xavier

I am this author

Aguiar, Francisco Nobrega de

I am this author

DOI

10.5151/2594-357x-0136

Downloads

Abstract

A planta de PCI da CSN foi construída em 1997 com tecnologia da BMH e uma capacidade máxima de 200 kg/t para os dois altos-fornos. Este trabalho apresenta os resultados obtidos na CSN com altas taxas de injeção de carvão pulverizado, atingindo valores acima de 210 kg/t de gusa com níveis de coke rate abaixo de 270 kg/t de gusa no alto-forno 3 reduzindo ao máximo seu consumo de coque e por conseguinte o custo do gusa.

The start of the injection of pulverized coal (PCI) in CSN occurred from the year 1997, with technology BMH, and with a maximum capacity of 200 kg / t of pig iron in the two blast furnaces. This paper aims to present the results obtained in the CSN with the injection of high rates of pulverized coal, reaching values of PCR above 210 kg / t with levels of coke rate less than 270 Kg / t of pig iron in the Blast-Furnace n.3, to reduce the most of his coke consumed and therefore reducing the cost of pig iron.

Keywords

Iron making; Blast furnace; PCI

Pig iron; Blast furnace; PCI