ISSN 2594-5327
72nd ABM Annual Congress — vol. 72, num.72 (2017)
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Resumo
Rotary kilns are continuous process equipment used on calcining of nickel ore. The chemical and physical reactions are created by means of heat up the material to predetermined temperatures. Tertiary air fans are attached to the kiln shell to maintain oxidizing/reduction conditions. Special ducts orientate the air flow inside the kiln. In the present work, two types of failure on distinct tertiary ducts mounted on the same kiln are reported. Chemical analysis, hardness test, metallographic and fractographic examinations were carried out. Fabrication related problems and creep were identified as the root causes of damages.
Palavras-chave
Kiln, Tertiary air ducts, Casting defects, Creep.
Creep.
Como citar
Thomazi, Cleber Caetano;
Brant, Yuri Castilho Caldeira;
Bailona, Baltazar Agenor;
Ito, Hamilton Lelis;
Neto, Osvaldo da Silva.
FAILURE ANALYSIS OF ROTARY KILN’S TERTIARY AIR DUCTS
,
p. 2307-2318.
In: 72nd ABM Annual Congress,
São Paulo,
2017.
ISSN: 2594-5327
, DOI 10.5151/1516-392X-30663
