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公开(公告)号：JP2004332001A
公开(公告)日：2004-11-25
申请号：JP2003125381
申请日：2003-04-30
发明人： NISHIMOTO MASARU , WATABE MASAYUKI , KAWABUCHI KAZUO , HINO EIJI , IZUNO OSAMU , SHIRAISHI HIROYUKI , NAGASUGA TOSHIHIKO
CPC分类号： Y02P10/234
摘要： PROBLEM TO BE SOLVED: To minimize the amount of exhaust gas generated from whole sintering equipment, to treat the exhaust gas at a low cost and also to recover the heat of the exhaust gas in high efficiency. SOLUTION: When manufacturing sintered ore from iron ore by sintering the iron ore in a sintering machine 1 and then cooling the resultant hot sintered ore agglomerates in a cooling device 2, the cooling device is constituted so that it is divided into two parts consisting of a fore-half high-temperature part 20 and a back-half high-temperature part 21 from an ore-feed part side, and exhaust gas which is discharged, after being used for cooling the hot sintered ore agglomerates, from the fore-half high-temperature part of the cooling device is subjected to heat recovery and circulated into the fore-half high-temperature part of the cooling device and recycled as cooling gas. Moreover, the sintering machine is constituted so that it is divided into three parts consisting of a fore-half part 26 and 26A, an intermediate part 27 and a back-half part 28 from an ignition furnace 6 side, and exhaust gas which is discharged, after being used for cooling the hot sintered ore agglomerates, from the back-half low-temperature part is circulated into the fore-half part and the back-half part and recycled as combustion gas. Further, exhaust gas generated from the back-half part is subjected to heat recovery and circulated into the intermediate part of the sintering machine and recycled as combustion gas. COPYRIGHT: (C)2005,JPO&NCIPI
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2.发明专利Waste heat recovery facility for arc furnace for steel making, and arc furnace facility for steel making 有权用于制钢的电弧炉的废热回收设备和用于制钢的弧炉设备
公开(公告)号：JP2011226712A
公开(公告)日：2011-11-10
申请号：JP2010097443
申请日：2010-04-20
IPC分类号： F27B3/10 , C21C5/52 , F22B1/18 , F22B3/04 , F27B3/24 , F27B3/26 , F27B3/28 , F27D17/00 , F27D19/00
CPC分类号： Y02P10/216
摘要： PROBLEM TO BE SOLVED: To provide a waste heat recovery facility for an arc furnace for steel making capable of efficiently recovering waste heat by suppressing temperature fluctuation of exhaust gas.SOLUTION: A waste heat recovery facility for an arc furnace for steel making is provided with: first exhaust gas passages for discharging exhaust gas from each of a plurality of arc furnaces for steel making; waste heat boilers 6 that are installed in the first exhaust gas passages, and that recover the waste heat from the exhaust gas as saturated steam; a steam accumulator 62 that accumulates steam by merging the saturated steam generated by each of the waste heat boilers 6; a steam superheater 43 that produces superheated steam by heating the steam accumulated in the steam accumulator 62; second exhaust gas passages that discharge exhaust gas, which has been obtained from the waste heat recovered by the waste heat boilers 6, guided to the steam superheater 43, and provided for superheating of the saturated steam; third exhaust gas passages that discharge exhaust gas, which has been obtained from the waste heat recovered by the waste heat boilers 6, but which bypasses the steam superheater 43; switching means that switch the exhaust gas passage, after waste heat has been recovered, between the second exhaust gas passages and the third exhaust passages.
摘要翻译： 解决的问题：提供一种用于炼钢电弧炉的废热回收设备，其能够通过抑制废气的温度波动来有效地回收废热。 解决方案：一种用于炼钢的电弧炉的废热回收设备具有：用于从用于炼钢的多个电弧炉中的每一个排出废气的第一废气通道; 废热锅炉6，其安装在第一排气通道中，并且从废气中回收作为饱和蒸汽的废热; 蓄热器62，其通过将由各个废热锅炉6产生的饱和蒸汽合并而积蓄蒸汽; 蒸汽过热器43，其通过加热蓄积在蓄电池62中的蒸汽来产生过热蒸汽; 将从废热锅炉6回收的废热中获得的废气排出的第二废气通道被引导到蒸汽过热器43，并且用于过饱和蒸汽的过热; 从废热锅炉6回收的废热中排出废气的第三废气通道，其绕过蒸汽过热器43; 切换装置，在第二废气通道和第三排气通道之间，在废热回收之后切换废气通道。 版权所有（C）2012，JPO＆INPIT
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3.发明专利Waste heat recovery facility and method for arc furnace for steel making, and arc furnace facility for steel making 有权用于制钢的电弧炉的废热回收设备和方法以及用于制钢的弧炉设备
公开(公告)号：JP2011226713A
公开(公告)日：2011-11-10
申请号：JP2010097444
申请日：2010-04-20
CPC分类号： Y02P10/216
摘要： PROBLEM TO BE SOLVED: To provide waste heat recovery facilities for arc furnaces for steel making efficiently recovering waste heat by suppressing temperature fluctuation of exhaust gas.SOLUTION: The facilities for recovering waste heat from the plurality of arc furnaces for steel making includes first exhaust gas passages for discharging the exhaust gas from each of the plurality of arc furnaces for steel making, waste heat boilers installed in the first exhaust gas passages and recovering the waste heat of the exhaust gas as saturated steam, a steam accumulator for accumulating steam by merging the saturated steam generated by each of the waste heat boilers, a steam superheater for producing superheated steam by heating the steam accumulated in the steam accumulator, second exhaust gas passages for guiding the exhaust gas after the recovery of waste heat by the waste heat boiler to the steam superheater for heating the saturated steam, and an operating part for operating the plurality of arc furnaces for steel making so that they are successively operated with prescribed time lags, and the operating part minimizes fluctuation in time among the number of the operated arc furnace for steel making.
摘要翻译： 要解决的问题：提供用于炼钢的电弧炉的废热回收设备，通过抑制废气的温度波动来有效地回收废热。 解决方案：用于从多个用于炼钢的电弧炉中回收废热的设备包括：第一排气通道，用于从用于炼钢的多个电弧炉中的每一个排出废气，安装在第一排气中的废热锅炉 气体通道和作为饱和蒸汽回收排气的废热，蒸汽储存器，用于通过合并每个废热锅炉产生的饱和蒸汽积累蒸汽;蒸汽过热器，用于通过加热积聚在蒸汽中的蒸汽来生产过热蒸汽 蓄能器，用于在废热锅炉将废热回收到用于加热饱和蒸汽的蒸汽过热器之后引导废气的第二废气通道;以及用于操作多个用于炼钢的电弧炉的操作部件， 以规定的时间滞后运行，操作部分使歌剧数量的时间波动最小化 用于炼钢的电弧炉。 版权所有（C）2012，JPO＆INPIT
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