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公开(公告)号：US4675049A
公开(公告)日：1987-06-23
申请号：US870518
申请日：1986-06-04
申请人： Francois Schleimer
发明人： Francois Schleimer
CPC分类号： C21C7/076 , C21C5/28 , Y02P10/242
摘要： A process for producing high quality steel includes a first step of decarburizing the melt in a converter by top blowing with oxygen to a carbon content of less than 0.1% carbon. Next, carbon (comminuted coal) is delivered to the melt at a high velocity whereby the melt and slag will boil intensely with the carbon being delivered until the oxygen content of the melt is less than or equal to about 250-400 ppm oxygen and the carbon content is greater than or equal to about 0.04-0.07% carbon. In the third step, recarburization of the melt is effected in either the converter or a ladle whereupon a melt having as little oxygen as is reasonably possible; and a carbon content close to that desired is achieved. Finally, in a fourth step, the melt (which is now in a ladle) is treated with synthetic slag and with a material that is both deoxidizing and desulphurizing (i.e., metallic calcium) whereby a high quality steel is produced.
摘要翻译： 一种生产优质钢的方法包括通过用氧气吹送至碳含量小于0.1％的碳将转化器中的熔体脱碳的第一步骤。 接下来，碳（粉碎煤）以高速输送到熔体中，由此熔体和炉渣将与被输送的碳强烈地沸腾直到熔体的氧含量小于或等于约250-400ppm氧，并且 碳含量大于或等于约0.04-0.07％的碳。 在第三步骤中，熔体的再碳化在转炉或钢包中进行，因此熔融物具有合理可能的氧气少; 并且实现了接近期望的碳含量。 最后，在第四步骤中，熔融物（现在在钢包中）用合成炉渣和脱氧和脱硫材料（即金属钙）进行处理，由此生产高品质的钢。
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公开(公告)号：US4561637A
公开(公告)日：1985-12-31
申请号：US534977
申请日：1983-09-23
申请人： Francois Schleimer
发明人： Francois Schleimer
CPC分类号： C21C5/32 , C21C5/38 , Y02P10/212 , Y10S266/90
摘要： A process and apparatus for heating a steel bath charged with scrap which efficiently utilizes converter waste gas to supplement external energy sources is presented.
摘要翻译： 提出了一种用于加热装有废料的钢槽的方法和装置，其有效地利用转炉废气来补充外部能源。
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公开(公告)号：US4378106A
公开(公告)日：1983-03-29
申请号：US280509
申请日：1981-07-06
摘要： A refractory gas permeable structural unit for blowing a gas into a metal treatment container and through its casing, has a refractory gas permeable stone, a first metal housing sealingly surrounding the stone, a second metal housing arranged at a distance from the first metal housing, a refractory substantially gas impermeable filler material provided between the first and second metal housings, and at least one connection and a distribution chamber provided at the end face of the stone.
摘要翻译： 一种用于将气体吹入金属处理容器并通过其壳体的难熔气体渗透结构单元，具有难熔气体渗透性石材，密封地围绕石头的第一金属壳体，与第一金属壳体一定距离设置的第二金属壳体， 提供在第一和第二金属外壳之间的难熔基本不透气的填充材料，以及设置在石头端面处的至少一个连接和分配室。
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14.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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15.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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