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公开(公告)号：US4345746A
公开(公告)日：1982-08-24
申请号：US261509
申请日：1981-05-04
CPC分类号： C21C5/30
摘要： A ferrous melt, e.g. of steel, is refined beneath a slag layer by blowing from above with an oxygen-containing gas through a lance and by bubbling an inert gas through the melt from the bottom. According to the invention, the consistency of the slag layer and/or its level is continuously detected on the one hand and the rate of decarburation of the bath is detected on the other hand and in response to these measurements the volume rate of flow of the bubbling gas is controlled on the one hand to maintain a predetermined spacing of the slag layer from the head of the lance and, on the other hand, a fluid consistency of the slag.
摘要翻译： 亚铁熔体，例如 的钢，通过用含氧气体通过喷枪从上方吹出并通过从底部鼓泡惰性气体通过熔体而在炉渣层下方精炼。 根据本发明，一方面连续地检测出渣层的一致性和/或其水平，另一方面检测到浴的脱饱和速率，并且响应于这些测量，容积的流速 一方面控制鼓泡气体以保持炉渣层与喷枪头部的预定间距，另一方面保持炉渣的流体稠度。
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2.发明授权Process of refining of a metal bath in a crucible with oxygen blast at the top and crucible used 失效使用顶部的氧气吹扫坩埚中的金属浴精炼过程
公开(公告)号：US4369060A
公开(公告)日：1983-01-18
申请号：US222512
申请日：1981-01-02
申请人： Paul Metz , Francois Schleimer , Ferdinand Goedert , Lucien Lorang , Romain Henrion , Jean-Claude Grosjean , Guy Denier , Claude Bauler
发明人： Paul Metz , Francois Schleimer , Ferdinand Goedert , Lucien Lorang , Romain Henrion , Jean-Claude Grosjean , Guy Denier , Claude Bauler
摘要： Process of refining of a metal bath in a crucible with oxygen blast at the top and crucible used.The invention consists essentially of providing in the bottom (15) of the crucible agitating gas injectors (15) located at least in a peripheral circular ring situated in immediate proximity to the refractory side wall. The injectors are preferably concentrated opposite the journals. Secondary injectors are, also preferably, provided in the bottom zone, intermediate between the ring and the center of the crucible.The invention makes it possible, in relation to the prior injection practice, to reduce the rate of dissolution of the agitating gas in the molten metal and then makes it possible to use a low-cost agitating gas, such as nitrogen, without risk of excessive nitridation of the bath.
摘要翻译： 使用顶部的氧气吹扫坩埚中的金属浴精炼过程。 本发明基本上由在至少位于紧邻耐火材料侧壁的外围圆环中的坩埚搅拌气体喷射器（15）的底部（15）提供。 注射器优选地集中在与期刊相对的位置。 也优选地，二次注射器设置在底部区域中，位于环和坩埚中心之间。 本发明可以相对于现有的喷射实践来降低搅拌气体在熔融金属中的溶解速度，从而可以使用诸如氮气的低成本搅拌气体，而不会有过度的风险 浴的氮化。
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3.发明授权
公开(公告)号：US4349382A
公开(公告)日：1982-09-14
申请号：US144228
申请日：1980-04-28
CPC分类号： C21C5/32 , Y02P10/212
摘要： A process for refining a metal bath in a converter by oxygen blowing, particularly a molten metal liquid bath containing cold, solid substances, notably of scrap. Oxygen is distributed over the surface of the bath, so that there will be an after-combustion of CO released in the course of decarbonization. The thickness and consistency of a slag layer formed over the bath is actively regulated by injecting a rising inert gas through the bottom of the bath. The flow of rising gas may be regulated depending upon the oxygen content in the fumes of the converter, or upon the intensity of emission through the top of an oxygen blowing lance.
摘要翻译： 一种通过吹氧来精炼转炉中的金属浴的方法，特别是含有冷的固体物质，特别是废料的熔融金属液体浴。 氧分布在浴的表面上，从而在脱碳过程中会释放CO的后燃。 通过在浴槽底部喷射上升的惰性气体来积极地调节在浴上形成的炉渣层的厚度和稠度。 上升气体的流动可以根据转炉的烟气中的氧含量或通过氧气喷枪顶部的排放强度来调节。
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公开(公告)号：US4325730A
公开(公告)日：1982-04-20
申请号：US204537
申请日：1980-11-06
CPC分类号： C21C5/30
摘要： Slag is conditioned during blowing from above with oxygen of an iron melt by bubbling an inert gas into the melt from the bottom of the crucible in response to measurements made of the flowability of the slag layer and the speed of decarburization.
摘要翻译： 响应于由渣层的流动性和脱碳速度测量，从坩埚的底部向惰性气体中吹入惰性气体至熔体中，从上方吹入炉渣以调节炉渣。
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公开(公告)号：US4334922A
公开(公告)日：1982-06-15
申请号：US222716
申请日：1981-01-05
申请人： Paul Metz , Francois Schleimer , Lucien Lorang , Ferdinand Goedert , Romain Henrion , Fernand Thill
发明人： Paul Metz , Francois Schleimer , Lucien Lorang , Ferdinand Goedert , Romain Henrion , Fernand Thill
CPC分类号： C21C5/30
摘要： A process for refining a steel melt in a furnace in which a steel melt is formed with a slag layer thereon, the thickness of which can be controlled by passing a stream of inert gas upwardly through the melt, while directing a first stream of oxygen into the melt from a lance positioned above the melt for the top-blowing refining thereof to produce carbon monoxide above the melt and feeding a second stream of oxygen from the lance for the post-combustion of the released carbon monoxide, while monitoring continuously the thickness of the slag layer, the height of the melt, the carbon monoxide post-combustion factor (%CO.sub.2 /%CO+%CO.sub.2) and the speed of decarburization of the melt and controlling the height of the lance above the melt and the discharge rates of total blown oxygen, the second stream of oxygen and the inert gas stream at any given time in accordance with a particular relationship.
摘要翻译： 一种在炉中精炼钢熔体的方法，其中钢熔体在其上形成有炉渣层，其厚度可以通过使惰性气体向上流过熔体而同时将第一氧气流引导到 来自位于熔体上方的喷枪的熔体用于顶吹精炼，以在熔体上方产生一氧化碳，并从喷枪中提供第二氧气流用于释放的一氧化碳的后燃烧，同时连续监测 炉渣层，熔体高度，一氧化碳后燃烧因子（％CO2 /％CO +％CO2）和熔体脱碳速度，并控制熔体上方的喷枪高度和总熔体排放速率 根据特定的关系在任何给定的时间吹入氧气，第二氧气流和惰性气体流。
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6.发明授权Apparatus and method for emptying metallurgical vessels containing metal and slag 失效用于排空含有金属和炉渣的冶金容器的装置和方法
公开(公告)号：US4767036A
公开(公告)日：1988-08-30
申请号：US505293
申请日：1983-06-17
申请人： Francois Schleimer , Jean Goedert , Ferdinand Goedert , Romain Henrion , Fernand Thill , Henri Klein , Jean-Francois Liesch
发明人： Francois Schleimer , Jean Goedert , Ferdinand Goedert , Romain Henrion , Fernand Thill , Henri Klein , Jean-Francois Liesch
CPC分类号： C21C5/4653 , B22D1/005
摘要： An apparatus and method is presented for emptying metallurgical vessels, and in particular steelmaking converters containing metal and slag, whereby the slag is effectively separated from the metal during pouring. The apparatus includes at least on permeable refractory element located near the flow hole. An agitating gas is fed through the refractory element thereby creating a bubbling froth which effectively obstructs most of the slag from being carried along by the vortex which forms above the vertical flow hole.
摘要翻译： 提出了一种用于排空冶金容器，特别是含有金属和炉渣的炼钢转炉的设备和方法，由此在浇注期间炉渣与金属有效分离。 该装置至少包括位于流动孔附近的可渗透耐火元件。 搅拌气体通过耐火元件进料，从而产生起泡泡沫，其有效地阻止大部分炉渣沿垂直流动孔的上方形成涡流。
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7.发明授权Method of and apparatus for refining a melt containing solid cooling material 失效用于精炼含有固体冷却材料的熔体的方法和装置
公开(公告)号：US4434005A
公开(公告)日：1984-02-28
申请号：US445037
申请日：1982-11-29
申请人： Paul Metz , Francois Schleimer , Ferdinand Goedert , Romain Henrion , Henri Klein , Jean-Francois Liesch
发明人： Paul Metz , Francois Schleimer , Ferdinand Goedert , Romain Henrion , Henri Klein , Jean-Francois Liesch
CPC分类号： C21C5/4606 , Y02P10/212
摘要： A method of and an apparatus for the refining of a molten metal overlain by a slag and in which cold solids are introduced, e.g. in the form of metal scrap. According to the invention the heat necessary to melt the scrap and prevent undue cooling of the bath is generated by directing a jet of neutral gas entraining carbon against the surface of the melt perpendicularly thereto at Mach 1.5 to Mach 2.5, while refining oxygen is directed at the surface from jets inclined to the carbon entraining jet and the melt is bottomblown by neutral gas to prevent excessive foaming of the slag.
摘要翻译： 一种用于精炼熔融金属的方法和装置，其由炉渣覆盖，其中引入冷固体，例如， 以金属废料的形式。 根据本发明，熔融废料和防止不适当的冷却液体所需的热量是通过将熔融金属的中性气体的气流以马赫数1.5至马赫数2.5垂直于熔融物的表面引导到熔体的表面而产生的，同时精炼氧被引导到 来自倾斜于碳夹带射流的喷嘴的表面和熔体被中性气体吹吹，以防止炉渣过度起泡。
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8.发明授权
公开(公告)号：US4439234A
公开(公告)日：1984-03-27
申请号：US466843
申请日：1983-02-16
CPC分类号： C21C5/35 , Y02P10/138 , Y02P10/212
摘要： Pig iron is refined by top blowing with oxygen and injecting inert gas from the bottom. The slag formation is minimized by controlled addition of lime to match the formation of slag components as they are generated by the process. This increases the capacity of the melt to receive a cold charge, e.g. of scrap.
摘要翻译： 生铁通过用氧气顶吹和从底部注入惰性气体来精炼。 通过控制添加石灰来匹配炉渣组分的形成，使炉渣成分最小化，因为它们是由工艺生成的。 这增加了熔体接收冷电荷的能力，例如， 的废料。
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公开(公告)号：US4415358A
公开(公告)日：1983-11-15
申请号：US371439
申请日：1982-04-23
申请人： Paul Metz , Francois Schleimer , Edouard Legille , Jean Goedert , Antoine Weiner
发明人： Paul Metz , Francois Schleimer , Edouard Legille , Jean Goedert , Antoine Weiner
摘要： A melt is contained in a vessel having below the level of the melt an at least gas-pervious wall portion. First the slag is removed, normally by pouring it off, from the melt. Then a finely divided treatment solids suspended in a gas is introduced through the wall portion into the melt. The melt reacts thoroughly with these solids. Immediately deslagging the melt substantially reduces its ability to pick up nitrogen or hydrogen. This can be enhanced by the further step, prior to introduction of the suspension, of adding pure lime to the melt to form a protective layer thereon. The vehicle gas for the powder of course is inert, normally argon. The vessel can also be sealed up with a tight cover after addition of pure lime to it and before introduction of the suspension. Otherwise in the subsequent desulfurizing nitrogen and hydrogen will enter into the metal matrix, especially if there is an appropriate slag present.
摘要翻译： 熔体包含在具有低于熔体高度的至少一个气体可透过壁部分的容器中。 首先，通常将熔渣从熔体中倒出来。 然后将悬浮在气体中的细碎处理固体通过壁部分引入熔体中。 熔体与这些固体彻底反应。 立即脱气熔体显着降低其吸收氮气或氢气的能力。 这可以通过进一步的步骤，在引入悬浮液之前，将纯石灰添加到熔体中以在其上形成保护层来增强。 用于粉末的汽车气体当然是惰性的，通常是氩气。 在加入纯石灰并在引入悬浮液之前，也可以用紧密的盖子密封容器。 否则在随后的脱硫氮气中，氢气将进入金属基质，特别是如果存在适当的矿渣。
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公开(公告)号：US4421555A
公开(公告)日：1983-12-20
申请号：US360815
申请日：1982-03-22
申请人： Paul Metz , Edouard Legille , Francois Schleimer , Antoine Weiner
发明人： Paul Metz , Edouard Legille , Francois Schleimer , Antoine Weiner
摘要： A system for treating, normally refining, a metallurgical melt has a melt-containing vessel having below the level of the melt an at least gas-pervious wall portion. A finely divided treatment solids is suspended in a treatment gas and this suspension is introduced through the pervious wall portion into the melt and reacting the melt with the gas and solids. The wall portion has openings oriented so that the gases and particles can pass into the vessel through them, but the molten metal therein cannot enter them. A plurality of such gas-and particle-pervious inserts are provided in the base of the crucible. They can be individually controlled relative to respective sensors provided above the melt. Thus exothermically reacting gases and/or particles are fed in under cold spots, or endothermically reacting gases and/or particles are fed in under hot spots.
摘要翻译： 用于处理，通常精炼冶金熔体的系统具有在熔体水平面以下至少具有气体可透过壁部分的熔融容器。 将精细分散的处理固体悬浮在处理气体中，并将该悬浮液通过可渗透的壁部分引入熔体中并使熔体与气体和固体反应。 壁部具有取向的开口，使得气体和颗粒可以通过它们进入容器，但是其中的熔融金属不能进入它们。 多个这种气体和颗粒可渗透的插入件设置在坩埚的基部中。 它们可以相对于在熔体上方提供的各个传感器单独控制。 因此，放热反应气体和/或颗粒在冷点下进料，或者吸热反应气体和/或颗粒在热点下进料。
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