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公开(公告)号：EP2751293B1
公开(公告)日：2015-03-11
申请号：EP12750579.0
申请日：2012-08-13
发明人： ESCHMANN, Friedrich , ALLMANNSDÖRFER, Ralf , MÜNZER, Johannes , HEILHECKER, Sylvia , SIMOES, Jean-Paul
CPC分类号： C21B9/14 , C21B5/06 , C21B2100/02 , C21B2100/04 , C21B2100/06 , Y02P10/122 , Y02P10/126 , Y02P10/128 , Y02P10/132 , Y02P10/265 , Y02P10/283
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.
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公开(公告)号：EP2751293A1
公开(公告)日：2014-07-09
申请号：EP12750579.0
申请日：2012-08-13
发明人： ESCHMANN, Friedrich , ALLMANNSDÖRFER, Ralf , MÜNZER, Johannes , HEILHECKER, Sylvia , SIMOES, Jean-Paul
CPC分类号： C21B9/14 , C21B5/06 , C21B2100/02 , C21B2100/04 , C21B2100/06 , Y02P10/122 , Y02P10/126 , Y02P10/128 , Y02P10/132 , Y02P10/265 , Y02P10/283
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.
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公开(公告)号：EP2510283B1
公开(公告)日：2013-07-03
申请号：EP10787770.6
申请日：2010-12-08
IPC分类号： F23D14/22
CPC分类号： F23D14/22 , F23C2900/03005
摘要： The present invention proposes a burner unit (10) for steel making facilities, in particular for use in connection with a regenerative or recuperative heat generator, wherein the burner unit (10) comprises a mixing zone (18); a plurality of fuel feed channels (32) for feeding combustible fuel to the mixing zone (18); and a plurality of air feed channels (34) for feeding combustion air to the mixing zone (18). According to an important aspect of the invention, the burner unit (10) comprises a primary burner (42) with an annular feed arrangement (30) comprising circumferentially alternating fuel feed channels (32) and air feed channels (34); a central channel (44) through the annular feed arrangement (30) and a secondary burner (46) arranged in the central channel (44) of the burner unit (10), the central channel (44) being coaxial with the annular feed arrangement (30).
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公开(公告)号：EP2510283A2
公开(公告)日：2012-10-17
申请号：EP10787770.6
申请日：2010-12-08
IPC分类号： F23D14/22
CPC分类号： F23D14/22 , F23C2900/03005
摘要： The present invention proposes a burner unit (10) for steel making facilities, in particular for use in connection with a regenerative or recuperative heat generator, wherein the burner unit (10) comprises a mixing zone (18); a plurality of fuel feed channels (32) for feeding combustible fuel to the mixing zone (18); and a plurality of air feed channels (34) for feeding combustion air to the mixing zone (18). According to an important aspect of the invention, the burner unit (10) comprises a primary burner (42) with an annular feed arrangement (30) comprising circumferentially alternating fuel feed channels (32) and air feed channels (34); a central channel (44) through the annular feed arrangement (30) and a secondary burner (46) arranged in the central channel (44) of the burner unit (10), the central channel (44) being coaxial with the annular feed arrangement (30).
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