公开(公告)号：US4957547A

公开(公告)日：1990-09-18

申请号：US256410

申请日：1988-10-12

申请人： Ludwig von Bogdandy ,  Gerhard Mitter ,  Otto Koller ,  Luzian Pochmarski ,  Christian Jaquemar ,  Hans-Jurgen Langhammer

发明人： Ludwig von Bogdandy ,  Gerhard Mitter ,  Otto Koller ,  Luzian Pochmarski ,  Christian Jaquemar ,  Hans-Jurgen Langhammer

IPC分类号： C21C5/56 ,  C21B13/00 ,  C21C5/28 ,  C21C5/36 ,  C21C5/54

CPC分类号： C21C5/54 ,  C21C5/36 ,  Y02P10/216

摘要： A process for continuously melting steel from largely already reduced iron containing material such as pig iron and/or scrap iron, in which process the melt is poured into a ladle for performing subsequent metallurgical steps. The metallurgical slag is, by adding flux, adjusted to20-77.2% FeO, preferably 25.7-50% FeO10-30% SiO.sub.22-15% Al.sub.2 O.sub.35-20% MgO0.13-6.45% MnO, perferably 0.5-5% MnO1-10% CaO0.1-5% Cr.sub.2 O.sub.3P+S traces.

摘要翻译： 一种从大量已经还原的含铁材料如生铁和/或废铁中连续熔炼钢的方法，其中将熔体注入钢包中以进行后续的冶金步骤。 冶金炉渣通过添加助熔剂调节至20-77.2％FeO，优选25.7-50％FeO 10-30％SiO2 2-15％Al2O3 5-20％MgO 0.13-6.45％MnO，优选0.5-5％MnO 1-10％CaO 0.1-5％Cr2O3 P + S痕迹。

公开(公告)号：US4895594A

公开(公告)日：1990-01-23

申请号：US278543

申请日：1988-12-01

申请人： Ludwig von Bogdandy ,  Gerhard Mitter ,  Otto Koller ,  Luzian Pochmarski

发明人： Ludwig von Bogdandy ,  Gerhard Mitter ,  Otto Koller ,  Luzian Pochmarski

IPC分类号： C21B13/00 ,  B22D35/00 ,  C21C20060101 ,  C21C5/28 ,  C21C5/34 ,  C21C5/42 ,  C21C5/56 ,  C22B7/00 ,  C22B9/16 ,  F27B14/18

CPC分类号： C21C5/567 ,  C21C5/28 ,  Y02P10/212

摘要： In a process for continuously melting scrap (6) and/or pig iron within a converter (1), the converter (1) is heated in proximity of the bottom (3) with sub-stoichiometric burners (4), having their flames (5) essentially radially directed into the interior of the converter (1). In this case, secondary air or O.sub.2 is supplied at a distance above the burner plane for the purpose of completing the combustion. The melt is, optionally together with slag, discharged via a tapping means (9) laterally connected to the converter (1) into a mobile ladle (19). For the purpose of interchanging ladles (19), the converter (1) is swivelled into a position in which the level of the melt is located below the taphole (11).

摘要翻译： 在用于在转炉（1）内连续熔炼废料（6）和/或生铁的过程中，转炉（1）在底部（3）附近被亚化学计量燃烧器（4）加热， 5）基本上径向地引导到转换器（1）的内部。 在这种情况下，为了完成燃烧的目的，在燃烧器平面上方的距离处供应二次空气或O 2。 熔体可选地与炉渣一起通过横向连接到转炉（1）的攻丝装置（9）排放到移动钢包（19）中。 为了交换水桶（19）的目的，转炉（1）旋转到熔体水平位于出气孔（11）下方的位置。

公开(公告)号：US4993689A

公开(公告)日：1991-02-19

申请号：US428774

申请日：1989-10-30

申请人： Ludwig von Bogdandy ,  Gerhard Mitter ,  Otto Koller ,  Luzian Pochmarski

发明人： Ludwig von Bogdandy ,  Gerhard Mitter ,  Otto Koller ,  Luzian Pochmarski

IPC分类号： C21B13/00 ,  B22D35/00 ,  C21C20060101 ,  C21C5/28 ,  C21C5/34 ,  C21C5/42 ,  C21C5/56 ,  C22B7/00 ,  C22B9/16 ,  F27B14/18

CPC分类号： C21C5/567 ,  C21C5/28 ,  Y02P10/212

摘要： In a process for continuously melting scrap (6) and/or pig iron within a converter (1), the converter (1) is heated in proximity of the bottom (3) with sub-stoichiometric burners (4), having their flames (5) essentially radially directed into the interior of the converter (1). In this case, secondary air or O.sub.2 is supplied at a distance above the burner plane for the purpose of completing the combustion. The melt is, optionally together with slag, discharged via a tapping means (9) laterally connected to the converter (1) into a mobile ladle (19). For the purpose of interchanging ladles (19), the converter (1) is swivelled into a position in which the level of the melt is located below the taphole (11).

公开(公告)号：US4925489A

公开(公告)日：1990-05-15

申请号：US234550

申请日：1988-08-22

申请人： Ludwig von Bogdandy ,  Gerhard Mitter ,  Otto Koller

发明人： Ludwig von Bogdandy ,  Gerhard Mitter ,  Otto Koller

IPC分类号： C21C5/28 ,  C21B13/00 ,  C21C5/56

CPC分类号： C21B13/0006 ,  C21C5/562 ,  Y02P10/216

摘要： For the purpose of melting scrap iron, pelletized sponge iron in reduced condition, solid pig iron or the like, there is introduced into the melting heat from below a charge-accepting receptacle by means of burners the carbon content within the molten bath is adjusted by a sub-stoichiometric combustion of hydrocarbon. Addition of any coal to the charged material is avoided. By reducing the oxygen flow, in particular by performing the combustion with approximately 0.9-times of the stoichiometric amount of oxygen, and by optionally adding slag formers, the aggressivity of the slag in relation to the furance lining is simultaneously reduced.

摘要翻译： 为了熔炼废铁，还原状态的造粒海绵铁，固体生铁等，借助于燃烧器从熔池的下方引入熔融热，熔池内的碳含量由 烃的亚化学计量燃烧。 避免了向带电材料添加任何煤。 通过减少氧气流量，特别是通过用化学计量量的氧气的大约0.9倍进行燃烧，并且通过任选地添加成矿剂，同时降低炉渣相对于耐火衬层的侵蚀性。

公开(公告)号：US4950325A

公开(公告)日：1990-08-21

申请号：US390243

申请日：1989-08-07

申请人： Gerhard Mitter ,  Luzian Pochmarski ,  Otto Koller

发明人： Gerhard Mitter ,  Luzian Pochmarski ,  Otto Koller

IPC分类号： C21C5/56 ,  C21C7/00

CPC分类号： C21C5/562 ,  C21C7/0037 ,  C21C7/005 ,  Y02P10/216

摘要： An apparatus for heating steel melts covered with a slag rich in iron oxide, and employed in particular for continuous steel making processes such as the KVA process, incorporates a height-adjustable injection lance for supplying metals which react exothermally with the melt and with the oxygen in the slag. The nozzle of the injection lance is adjustably arranged above the contents of the ladle so that it can be maintained in the zone of the melt/slag phase boundary.

摘要翻译： 用于加热富含氧化铁的炉渣的钢熔体的装置，特别用于连续炼钢工艺如KVA工艺的装置包括高度可调的注射枪，用于供应与熔体和氧气放热反应的金属 在炉渣中。 注射枪的喷嘴可调节地布置在钢包内部的上方，使得其可以保持在熔体/渣相边界的区域中。