发明名称 |
METHOD OF OPERATING REGENERATIVE HEATERS IN BLAST FURNACE PLANT |
摘要 |
In a blast furnace plant (10), at least three regenerative heaters (14.1, 14.2, 14.3) 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 (46); and while a regenerative heater is operated on blast, process gas (32), i.e. a CO-rich fraction of the top gas (16), is blown through the regenerative heater so that the process gas takes up heat from the heat storage elements. 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. |
申请公布号 |
ZA201402559(B) |
申请公布日期 |
2015.03.25 |
申请号 |
ZA20140002559 |
申请日期 |
2014.04.08 |
申请人 |
PAUL WURTH S.A.;PAUL WURTH REFRACTORY & ENGINEERING GMBH |
发明人 |
ESCHMANN, FRIEDRICH;MUNZER, JOHANNES;SIMOES, JEAN-PAUL;ALLMANNSDORFER, RALF;HEILHECKER, SYLVIA |
分类号 |
C21B |
主分类号 |
C21B |
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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