发明名称 |
DEVICE AND METHOD FOR REDUCING DEW POINT OF AMBIENT GAS IN ANNEALING FURNACE, AND METHOD FOR PRODUCING COLD-ROLLED ANNEALED STEEL PLATE |
摘要 |
Part of an atmosphere gas in a heating zone 1 and/or a soaking zone is sucked out and is cooled through a high-temperature gas passage of a heat exchanger 9 by heat exchange with a gas in a low-temperature gas passage, is then cooled through a gas cooler 10, is then dehumidified to a dew point of -45°C or less in a dryer 11, is then heated through the low-temperature gas passage of the heat exchanger 9 by heat exchange with a gas in the high-temperature gas passage, and is returned to the heating zone 1 and/or the soaking zone. Part of gas flowing from the dryer 11 toward the low-temperature gas passage of the heat exchanger 9 is returned to a cooling zone 2. These can achieve a low dew point of -45°C or less with high energy efficiency. |
申请公布号 |
EP2837699(A1) |
申请公布日期 |
2015.02.18 |
申请号 |
EP20130775912 |
申请日期 |
2013.04.05 |
申请人 |
JFE STEEL CORPORATION |
发明人 |
FUJII, TAKAMASA;IRI, MASATO;SATO, NOBUYUKI |
分类号 |
C21D9/56;C21D1/76;F27B9/28;F27D7/06 |
主分类号 |
C21D9/56 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|