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| Study on Improving Zinc-cathode Melting Recovery in Induction Furnace |
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Received:June 19, 2012
Revised:June 19, 2012
Accepted:June 19, 2012
Published Online:September 19, 2012
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| DOI：10.3969/j.issn.1007-7545.2012.10.017 |
| KeyWord:main frequency furnace; zinc cathode; casting; total recovery; oxidation rate |
| Author | Institution |
| Lu Zhi-ang |
株洲火炬工业炉有限责任公司 |
| Wang Yang-yang |
株洲火炬工业炉有限责任公司 |
| He Shi-ke |
中南大学 |
| Ai Yuan-fang |
中南大学 |
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| Abstract: |
| The variational pattern of zinc recovery and oxidation rate vs. the oxygen concentration in the hearth space of induction furnace were investigated aimed at the lower zinc recovery duo to the oxidation of melted zinc liquid. The results show that the nitrogen injection into the gas-phase space of the electric furnace can increase zinc recovery to 98.08%~98.21%, which is 1.15~2.15 percentage point higher than that of traditional zinc casting furnace without nitrogen injection, under the conditions of 420~520 ℃ and oxygen content in the hearth space less than 5 percent, and no NOx pollution need to be taken into account. |
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