Fundamentals Cement Engineer quiz- Try to Answer without Cheating
true of false
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When air is heated, its weight per unit volume decreases ?
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One ton of kiln feed will make one ton of clinker ?
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High free-lime contents in the clinker always indicate that the clinker has been Unburned ?
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c3s .(tricalcium silicate) is an ingredient in the kiln feed.
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C02 (carbon dioxide) in tl1e kiln exit gases originates partly from the combustion of the fuel and partly from calcination of feed.
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An increase in fuel rate will always generate more heat in the burning zone.
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Opening a butterfly damper from SO% to 100% open will most likely produce no increase in flow.
waiting for your answer
1 false
2 false
3 true
4 false
5 false
6 true
7 false
Very useful for cement engineers.
1-false
2-false
3-false
4-false
5-true
6-false
7-false (but need to determine which damper will open )
1-falso
2-Falso – Existe perda de aproximadamente 35 % na reação de decomposição de CaCO3 — CaO + CO2
3-Falso – nem sempre, você pode ter CaO livre em excesso devido ao excesso de Cálcio, Alem de combinar formando C3S, ainda sobra ficando CaO livre …
4-Falso-Silicato tricalcio e o resultado da combinação do CaO + SiO2 isso acontece devido a queima da farinha alimentada.
5-Verdadeiro – CaO + CO2 (Farinha Alimentada ) e C + O2 – CO2 (Combustivel )
6- falso
7- nao sei