发明授权
- 专利标题： Method of operating regenerative heaters in blast furnace plant
- 专利标题（中）： 高炉厂再生加热器运行方法
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申请号： US14352744申请日： 2012-08-13
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公开(公告)号： US08992823B2公开(公告)日： 2015-03-31
- 发明人: Friedrich Eschmann , Ralf Allmannsdörfer , Johannes Münzer , Sylvia Heilhecker , Jean-Paul Simoes
- 申请人： Friedrich Eschmann , Ralf Allmannsdörfer , Johannes Münzer , Sylvia Heilhecker , Jean-Paul Simoes
- 申请人地址： LU Luxembourg DE
- 专利权人： Paul Wurth S.A.,Paul Wurth Refractory & Engineering GmbH
- 当前专利权人： Paul Wurth S.A.,Paul Wurth Refractory & Engineering GmbH
- 当前专利权人地址： LU Luxembourg DE
- 代理机构： Cantor Colburn LLP
- 优先权： EP11185842 20111019
- 国际申请： PCT/EP2012/065830 WO 20120813
- 国际公布： WO2013/056870 WO 20130425
- 主分类号： C21B9/14
- IPC分类号： C21B9/14 ; C21B5/06
摘要：
In a blast furnace plant, at least three regenerative heaters are cyclically operated on blast and on gas: while a regenerative heater is operated on gas, hot flue gas is produced and caused to flow through the regenerative heater so as to heat the heat storage elements; and while a regenerative heater is operated on blast, process gas, i.e. a CO-rich fraction of the top gas, is blown through the regenerative heater so that the process gas takes up heat from the heat storage elements, such that during a changeover of a regenerative heater from on-blast to on-gas operation, the regenerative heater is purged from process gas using flue gas collected after having flown through at least one of the regenerative heaters.
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