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公开(公告)号：EP4430352A1
公开(公告)日：2024-09-18
申请号：EP22817630.1
申请日：2022-11-11
发明人： MERSMANN, Matthias
IPC分类号： F27B1/00 , B65G17/12 , C04B7/36 , F27B1/20 , F27B1/26 , F27B7/20 , F27B7/42 , F27D3/00 , F27D17/00 , F27D19/00 , F27D21/00
CPC分类号： F27B7/20 , F27B1/20 , F27B1/005 , F27D17/004 , F27D17/008 , C04B7/364 , B65G17/126 , F27D3/0027 , F27B7/42 , F27B1/26 , F27D19/00 , F27D21/00 , C04B7/432
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公开(公告)号：EP4399467A1
公开(公告)日：2024-07-17
申请号：EP21956686.6
申请日：2021-09-10
申请人： Metso Metals Oy
发明人： BJÖRKLUND, Peter , SONNINEN, Valtteri , RANKI, Tiina , ROMPPANEN, Jaana , LAANINEN, Aki , HEINONEN, Heikki , SOLA, Petri , SUIKKANEN, Päivi
CPC分类号： F27B1/28 , F27B3/24 , F27D9/00 , F27D21/00 , C21B7/10 , C21C5/4646 , F27D1/12 , F27D2009/002120130101
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公开(公告)号：EP3950966B1
公开(公告)日：2024-06-19
申请号：EP20783058.9
申请日：2020-03-31
CPC分类号： C21B7/24 , F27D21/00 , C21B5/006 , C21B2300/0420130101 , C21B7/007 , F27B1/28 , G05B23/024 , G05B23/0297
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公开(公告)号：EP4365313A1
公开(公告)日：2024-05-08
申请号：EP22849234.4
申请日：2022-07-11
摘要： A blast furnace slag level estimation method and blast furnace slag level estimation apparatus can estimate the liquid level of slag to a high degree of accuracy. An operation guidance method, method of producing hot metal, and operation guidance apparatus also provide guidance for the operation of a blast furnace based on a highly accurately estimated liquid level of slag. The blast furnace slag level estimation method includes a step (S2) of calculating a liquid level of melt containing slag for each region in a plurality of regions separated by a low permeability zone, using a physical model that takes at least one of hot metal tapping rate, slag tapping rate, hot metal production rate, and slag production rate as an input and that is based on a mass balance assuming existence of the low permeability zone with poor permeation of slag at a bottom of a furnace.
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5.发明公开
公开(公告)号：EP3458787A1
公开(公告)日：2019-03-27
申请号：EP17708716.0
申请日：2017-02-24
CPC分类号： F27B17/025 , A61C13/00 , A61C13/08 , A61C13/20 , F27D5/0043 , F27D9/00 , F27D19/00 , F27D21/00 , F27D21/0014 , F27D2019/0018
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公开(公告)号：EP2722405B1
公开(公告)日：2018-10-10
申请号：EP12823682.5
申请日：2012-08-08
发明人： KINOSHIRO, Satoshi , ITO, Toshiyuki , KAWABATA, Ryo , ISHIGE, Toshiro , FUJIMOTO, Kyoko , INOSE, Masao
IPC分类号： G01N33/00 , C21C7/064 , C21C7/00 , G01N21/64 , G01N31/00 , F27D21/00 , F27D19/00 , C21C7/10 , C21C7/06
CPC分类号： C21C7/0645 , C21C1/02 , C21C7/0006 , C21C7/0037 , C21C7/0075 , C21C7/0087 , C21C7/06 , C21C7/064 , C21C7/10 , C21C2007/0093 , C21C2300/08 , F27D19/00 , F27D21/00 , G01N21/64 , G01N21/645 , G01N33/0042 , Y02A50/248
摘要： There are provided a method for desulfurizing molten steel, characterized in that a sample taken out from molten steel after the tapping from a converter or during the secondary refining is analyzed rapidly in a high accuracy by a method comprising a high frequency induction heating step wherein the sample is combusted and oxidized under the high frequency induction heating in a pure oxygen atmosphere to convert S in the sample into SO 2 and an analyzing step wherein SO 2 -containing gas produced in the high frequency induction heating step is analyzed through an ultraviolet fluorescence method to quantify S concentration of the sample, whereby S concentration of molten steel after the tapping from the converter can be controlled in a high accuracy to prevent failure of S concentration and also desulfurization time in the secondary refining can be shortened and the amount of the desulfurizer or the like used can be reduced, and a method of manufacturing molten steel by using such a method.
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7.发明公开
公开(公告)号：EP3350527A1
公开(公告)日：2018-07-25
申请号：EP16775756.6
申请日：2016-09-14
申请人： Outotec (Finland) Oy
CPC分类号： F27D21/0014 , C21C5/4673 , C21C7/0025 , C21C7/0037 , C21C2005/5288 , F27B3/28 , F27B14/20 , F27D11/08 , F27D19/00 , F27D21/00 , F27D21/02 , Y02P10/216
摘要： Provided are a method and to an arrangement for monitoring characteristics of a furnace process in a furnace space limited by a furnace shell of a metallurgical furnace. The arrangement comprises a process monitoring unit having a frame mounted by means of a mounting means on the metallurgical furnace outside the furnace space of the furnace shell. Also provided is a process monitoring unit for use in the method and/or in the arrangement.
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公开(公告)号：EP3198042B1
公开(公告)日：2018-06-06
申请号：EP15750682.5
申请日：2015-08-06
CPC分类号： C21C5/5294 , F27D19/00 , F27D21/00 , Y02P10/216
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公开(公告)号：EP3029160B1
公开(公告)日：2018-04-25
申请号：EP14832268.8
申请日：2014-06-18
CPC分类号： G06T7/0004 , C21B5/006 , C21B7/24 , F27B1/16 , F27B1/28 , F27D1/16 , F27D1/18 , F27D21/00 , F27D21/02 , F27D2021/026 , G06K9/4661 , G06K9/6269 , G06T7/60 , G06T2207/10016 , G06T2207/20076
摘要： An abnormality detection device 10 includes tuyere cameras 31 installed in the vicinities of a plurality of tuyeres 11 of the blast furnace 1 and an image processing device 7. A representative brightness vector collection unit 773 of the image processing device 7 determines representative brightnesses based on brightness values of respective pixels for the tuyeres images previously shot by the tuyere cameras 31 at the same time so as to collect representative brightness vectors in a time-series manner. An index extraction unit 775 performs principal component analysis on the representative brightness vectors collected in the time-series manner so as to extract a principal component vector. The representative brightness vector collection unit 773 collects the representative brightness vector from tuyere images shot by the tuyere cameras 31 at the same time during an operation. The abnormality detection processor 777 calculates a length of a normal line drawn from the collected representative brightness vector in the direction of the principal component vector as an evaluation value and compares the evaluation value with a predetermined threshold so as to detect the abnormality of the blast furnace 1.
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公开(公告)号：EP3303959A1
公开(公告)日：2018-04-11
申请号：EP16802281.2
申请日：2016-05-26
申请人： Hatch Ltd.
发明人： SHEN, Dong , CAMPBELL, Michael , CHEUNG, Jason , WIKSTON, James
CPC分类号： H05B7/148 , F27B3/085 , F27B3/28 , F27D11/08 , F27D19/00 , F27D21/00 , H02J3/1864 , Y02P10/256 , Y02P10/259
摘要： It is proposed herein to employ thyristor firing angles as a fast prediction of flicker in power supply for an electric arc furnace. It is further proposed to actively modify operating variables for the electric arc furnace to maintain the flicker below a predefined threshold. Aspects of the present application use the thyristor firing angles in combination with control ranges of variable reactance devices to predict the flicker severity level generated by the electric arc furnace with thyristor-controlled variable reactance devices. Based on the predicted flicker level, at least one operating variable of the electric arc furnace may be changed, if required, to maintain flicker to acceptable limit.
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