
Processos de redução 2
Authored by Jamil Nobre
Science
Professional Development
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19 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
No balão gravimétrico, as partículas mais pesadas do gás do alto forno se depositam no fundo porque
Tem sua velocidade acelerada ao entrar.
Tem sua velocidade reduzida ao entrar.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Melhorias que possibilitaram um maior consumo de carvão PCI no forno
Aumento do tamanho da cuba
Sonda de carga
Arrefecimento do ar soprado
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual a faixa de operação do ar quente do ar que sai pelos regenerados?
500 - 1350 °C
1500- 1800°C
200 - 500°C
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
O uso de carvão PCI reduz o peso de carvão enfornado, no entanto alguns fatores limitam seu uso, tais como
Redução da permeabilidade por geração de finos
Marcha periférica
Ponto de fusão do gusa
Escória granulada
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Desvantagem ao se se injetar carvão pulverizado pelas ventaneiras em excesso
Reduzir
o consumo de carvão na carga
Melhor
controle térmico do forno
Reduz a permeabilidade do forno
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Na limpeza secundária dos gases do alto forno. O co produto formado sai na forma de
Lama
Pó
Moinha
Escória
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Camadas da cargas desbalanceadas devido a má distribuição da carga ou fusão irregular na zona de combustão
Engaiolamento
Arriamento
Desnivelamento
Chaminés
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