发明名称 |
METHOD FOR ADJUSTING FURNACE ATMOSPHERE IN CONTINUOUS ANNEALING FURNACE (AS AMENDED) |
摘要 |
A problem with existing technologies that, when decreasing the dew point of the inside of a continuous annealing furnace by using a refiner, a decrease in the temperature of a part of the inside of the furnace cannot be prevented without supplying additional heat, is to be solved. Provided is a method for adjusting a furnace atmosphere in a continuous annealing furnace, the method including drawing a gas, which is a part of the furnace atmosphere, into a refiner 8 disposed outside the furnace and dehumidifying and deoxidizing the gas; causing the gas that has been dehumidified and deoxidized and that has exited the refiner 8 to exchange heat with a gas that is to be drawn into the refiner 8 in a heat exchanger 7 disposed outside the furnace; causing the gas to exchange heat with the furnace atmosphere in a furnace heat exchanger 11 disposed in the furnace; and reinjecting the gas into the furnace. |
申请公布号 |
US2015322539(A1) |
申请公布日期 |
2015.11.12 |
申请号 |
US201314763901 |
申请日期 |
2013.01.28 |
申请人 |
JFE STEEL CORPORATION |
发明人 |
Takada Motoki;Takahashi Hideyuki;Fujil Takamasa;Sato Nobuyuki |
分类号 |
C21D9/56;C22C38/00;F27D7/06;C21D1/76 |
主分类号 |
C21D9/56 |
代理机构 |
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代理人 |
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主权项 |
1. A method for adjusting a furnace atmosphere in a continuous annealing furnace, the method comprising drawing a gas, which is a part of the furnace atmosphere in the continuous annealing furnace, into a refiner disposed outside the furnace and dehumidifying and deoxidizing the gas in order to decrease a dew point of the furnace atmosphere; causing the gas that has been dehumidified and deoxidized and that has exited the refiner to exchange heat with a gas that is to be drawn into the refiner in a heat exchanger disposed outside the furnace; causing the gas to exchange heat with the furnace atmosphere in a furnace heat exchanger disposed in the furnace; and reinjecting the gas into the furnace. |
地址 |
Tokyo JP |