发明名称 |
APPARATUS AND METHOD FOR TREATING WASTE GAS FOR ROTARY HEARTH FURNACE-TYPE REDUCING FURNACE |
摘要 |
Provided are an exhaust gas processing system and method capable of effectively utilizing the sensible heat of an exhaust gas for preheating air for burner combustion in a rotary hearth type reducing furnace while preventing troubles caused by adhesion of dust such as blockage in an exhaust gas processing facility for a rotary hearth type reducing furnace and corrosive deterioration in the facility without increasing the facility costs excessively. The system comprises a radiant heat exchanger 2 for heat exchange between an exhaust gas exhausted from the rotary hearth type reducing furnace and air. The radiant heat exchanger 2 includes an inner cylinder 22 made of metal surrounding a space through which the exhaust gas flows; an outer cylinder 21 disposed on an outer side in a radial direction of the inner cylinder to define a flow channel between the inner cylinder and the outer cylinder 21 for allowing the air to flow so as to exchange heat with the exhaust gas; and a highly thermal conductive refractory 23 applied to an inner side of the inner cylinder 22 so as to cover an inner surface thereof. |
申请公布号 |
EP2172726(A1) |
申请公布日期 |
2010.04.07 |
申请号 |
EP20080777468 |
申请日期 |
2008.06.20 |
申请人 |
KABUSHIKI KAISHA KOBE SEIKO SHO |
发明人 |
SUGITATSU, HIROSHI;HARADA, TAKAO;FUJIMOTO, HIDEAKI |
分类号 |
F27D17/00;C21B13/10;C22B7/02;F27B9/18;F27B9/30 |
主分类号 |
F27D17/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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