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1. 发明专利

JPS5928515A Method and apparatus for refining steel 失效
标题翻译：炼钢方法与装置
公开(公告)号：JPS5928515A
公开(公告)日：1984-02-15
申请号：JP13653282
申请日：1982-08-05
申请人： Daido Steel Co Ltd , Yahagi Eng Kk
发明人： KAWANOBU YASUTAKA , NOGUCHI HISAO , KANOU SHINJI , YAMAZAKI KATSUYA
IPC分类号： C21C7/072 , C21C5/28 , C21C5/30 , C21C5/46 , C21C7/00
CPC分类号： C21C5/30
摘要： PURPOSE: To detect the amount of carbon contained in steel melt for easily and properly controlling decarburization, by measuring the amount of heat per time unit taken off with exhaust gas formed by injecting oxygen into the steel melt in a reactor vessel to refine said steel melt.
CONSTITUTION: Oxygen and Ar gases are injected through a tuyere 11 into steel melt 2 in a reactor vessel 1, while oxygen gas is blown through an upper lance 3 against the steel melt to perform its decarburization. An alloying element shooter 5 equipped with a cooling jacket is provided inside a suction hood 4 for discharging exhaust gas. The amount of heat per time unit in the exhaust gas which takes off heat formed by the oxidation of carbon in the steel melt 2 is measured from the difference ΔT in temp. between the inlet 51 and the outlet 52 of said jacket for circulating cooling water. Thus, the amount of carbon in the steel melt 2 is accurately estimated without depending on any analyzer means, accurate decarburization is performed, and the amount of carbon contained at a final point can be controlled.
COPYRIGHT: (C)1984,JPO&Japio
摘要翻译：目的：通过测量通过在反应器容器中将氧注入钢熔体中形成的废气排出的每个时间单位的热量来测量钢熔体中容纳并适当控制脱碳的碳量，以精炼所述钢熔体。构成：氧气和氩气通过风口11注入到反应器容器1中的钢熔体2中，同时氧气通过上喷枪3吹向钢熔体进行脱碳。配备有冷却套的合金元件射出器5设置在用于排出废气的抽吸罩4的内部。通过在温度下的差值DELTAT来测量排出气体中排出的热量，该排出气体通过钢熔体2中的碳的氧化而形成的热量。在所述护套的入口51和出口52之间用于循环冷却水。因此，不依赖于任何分析装置，精确地估计钢熔体2中的碳量，进行精确的脱碳，并且可以控制最终点所含的碳量。

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