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公开(公告)号：KR1020040057706A
公开(公告)日：2004-07-02
申请号：KR1020020084497
申请日：2002-12-26
申请人： 주식회사 포스코
IPC分类号： C21C7/072
摘要： PURPOSE: A secondary refining method of molten steel through control of bubbling pattern is provided to minimize uniform mixing time of molten steel by optimizing a ratio of bubbling rate blown up and bubbling rate blown down and height of upper blowing lance in the secondary refining process of steelmaking. CONSTITUTION: In a secondary molten steel refining process of floating inclusions in molten steel, thereby removing the floated inclusions as upper bubbling an inner gas from an upper blowing lance dipped from an upper part of teeming ladle and lower bubbling the inert gas to a lower part of the teeming ladle, the secondary refining method of molten steel through control of bubbling pattern comprises a step of installing the upper blowing lance at an elevation of 450 to 550 mm from the bottom of the teeming ladle; and a step of controlling a ratio of bubbling rate blown up and bubbling rate blown down to 1.6 to 1.7:1.
摘要翻译： 目的：通过控制鼓泡图案提供钢水的二次精炼方法，以通过优化吹炼的鼓泡速率和鼓泡速率的比例以及二次精炼过程中上吹喷枪的高度来最小化钢水的均匀混合时间 炼钢。 构成：在钢水中的浮动夹杂物的二次钢水精炼过程中，由于从上部吹入喷枪的上部鼓泡内部气体中除去漂浮的夹杂物，并且将惰性气体向下部鼓泡 通过控制起泡图案，钢水的二次精炼方法包括从顶部浇包的底部以450至550mm的高度安装上吹式喷枪的步骤; 以及控制鼓泡速率膨胀比和鼓泡速率降低至1.6至1.7:1的步骤。
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公开(公告)号：KR100862803B1
公开(公告)日：2008-10-13
申请号：KR1020070081875
申请日：2007-08-14
申请人： 주식회사 포스코
摘要： A method for improving efficiency of desulfurizing operation in a KR(Kanvara Reactor) is provided to prevent a desulfurizing agent from being attached at an impeller by uniform dispersion of the desulfurizing agent in a molten iron. A KR(Kanvara Reactor) rotates and desulfurizes an impeller. A gas generating raw material is injected in an upper side of a molten iron by 1.5 to 6% of a desulfurizing agent weight contrast after injecting the desulfurizing agent. The gas generating raw material is calcium hydroxide or limestone. The gas generating raw material is injected in a 60 to 80% section of the entire work section in which rotary speed of the impeller is maintained at a maximum speed.
摘要翻译： 提供了一种用于提高KR（Kanvara反应器）中脱硫操作效率的方法，以通过脱硫剂在铁水中的均匀分散来防止脱硫剂附着在叶轮上。 KR（Kanvara反应器）旋转和脱硫叶轮。 注入脱硫剂后，将生成气体的原料在铁水的上侧注入1.5〜6％的脱硫剂重量对比度。 气体发生原料是氢氧化钙或石灰石。 将气体发生原料注入到叶轮的转速维持在最大速度的整个工作部的60〜80％的截面。
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公开(公告)号：KR100515043B1
公开(公告)日：2005-09-15
申请号：KR1020000052443
申请日：2000-09-05
申请人： 주식회사 포스코
IPC分类号： B22D11/10
摘要： 본 발명은 연속주조 조업시 레이들에서 턴디쉬로 용강을 이송하는 과정에서 레이들 콜렉터 노즐과 레이들 쉬라우드 노즐 사이의 틈새로 공기가 유입되는 것을 방지하기 위한 연속주조기의 용강산화 방지용 밀봉장치에 관한 것으로, 연속주조기의 레이들로부터 턴디쉬로 용강을 주입하는 턴디쉬 쉬라우드 노즐 상부의 외부면을 둘러싸고 있는 금속케이스의 내측면을 따라 불활성가스를 주입시킴으로써, 레이들 배출구 하부에 부착되어 있는 레이들 콜렉터 노즐과 상기 턴디쉬 쉬라우드 노즐 사이의 결합부위를 통해 외부공기가 용강으로 유입되는 것을 방지하기 위한 밀봉장치는 상기 턴디쉬 쉬라우드 노즐 상단부와 상기 금속케이스 상부측 하부 사이에 삽입되는 소정두께의 다공성 세라믹 페이퍼를 포함하는 것을 특징으로 하므로, 레이들 쉬라우드 노즐과 콜렉터 노즐 사이의 결합부위 전체에 걸쳐 균일한 불활성 분위기를 형성하여 기체 흡입에 의한 용강 산화를 방지할 수 있다.
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公开(公告)号：KR1020050002965A
公开(公告)日：2005-01-10
申请号：KR1020030042330
申请日：2003-06-27
申请人： 주식회사 포스코
IPC分类号： B22D41/01
摘要： PURPOSE: To provide an opening and closing type preheater for submerged nozzle, which protects surrounding facilities of the submerged nozzle and preheating the submerged nozzle promptly and uniformly by blocking heat and flame of a preheating burner discharged to an upper part of a preheating oven when preheating the submerged nozzle. CONSTITUTION: In a device for preheating a submerged nozzle(110) used for injecting molten steel in a tundish(108) into a mold, the opening and closing type preheater for the submerged nozzle comprises a body part(10) comprising a preheating oven(12) of which upper part is opened, and preheating burner(14) installed under the preheating oven to heat the inside of the preheating oven; an opening and closing part(30) comprising an opening and closing cylinder installed on an outer upper part of the preheating oven, and an opening and closing member(34) opened and closed by the opening and closing cylinder to open and close an upper part of the preheating oven; and a lifting and lowering part(50) comprising a liftable and lowerable cylinder installed under the preheating oven, and a supporting frame(54) to a lower part of which the liftable and lowerable cylinder is fixed, and which vertically guides the preheating oven so that the preheating oven is lifted and lowered.
摘要翻译： 目的：提供一种用于淹没喷嘴的开闭式预热器，其可以保护浸没喷嘴的周围设施，并通过在预热时将预热炉排放到预热炉上部的预热燃烧器的热量和火焰迅速均匀地预热 浸没喷嘴。 构成：在用于将用于将中间包（108）中的钢水注入模具中的浸没式喷嘴（110）预热的装置中，用于浸没式喷嘴的开闭型预热器包括主体部分（10），其包括预热炉 12），其中上部部分打开;以及预热燃烧器（14），其安装在预热炉下面以加热预热炉的内部; 包括安装在预热炉外部上部的开闭气缸的开闭部分（30），以及由打开和关闭气缸打开和关闭的打开和关闭上部的打开和关闭构件（34） 的预热炉; 和一个提升和下降部分（50），它包括一个安装在预热炉下面的可升降的气缸，以及支撑框架（54），其下部可固定可升降的气缸，并将预热炉垂直地导向 预热炉升降。
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公开(公告)号：KR1020040012073A
公开(公告)日：2004-02-11
申请号：KR1020020045430
申请日：2002-07-31
申请人： 주식회사 포스코
IPC分类号： B22D11/16
CPC分类号： B22D11/16 , B22D11/1246 , B22D11/22
摘要： PURPOSE: A system and a method for diagnosing secondary cooling spray nozzles of continuous casting machine are provided to realize realtime diagnose conditions of the spray nozzles in operation line by measuring injection quantity of the spray nozzles in the continuous casting process and comparing the measured values with a preset standard value. CONSTITUTION: In a system for diagnosing cooling water injection characteristics of spray nozzles installed on a continuous casting process line, the system for diagnosing secondary cooling spray nozzles of continuous casting machine comprises a plurality of resistance value measuring sensors(10) in which sensor heads are respectively inserted into both ends of water line pipe for supplying cooling water to the spray nozzles, and resistance values changed according to flux and flow rate of cooling water passing through the pipe are measured by the sensor heads; am MPU (microprocessor unit)(30) electrically connected to the resistance value measuring sensors(10) through wire lines to judge whether the respective spray nozzles are normal or not by comparing measured values transmitted from the resistance value measuring sensors(10) with a set standard value; and a main system(80) for displaying normal and abnormal signals of the respective spray nozzles transmitted from the MPU (microprocessor unit)(30) on a monitor.
摘要翻译： 目的：提供一种用于诊断连铸机二次冷却喷嘴的系统和方法，通过测量连续铸造过程中喷嘴的喷射量来实现操作线上喷嘴的实时诊断条件，并将测量值与 预设的标准值。 构成：用于诊断安装在连续铸造生产线上的喷嘴的冷却水注入特性的系统中，用于诊断连续铸造机二次冷却喷嘴的系统包括多个电阻值测量传感器（10），其中传感器头是 分别插入到用于向喷嘴供应冷却水的水线管的两端，并且通过传感器头测量根据通过管的冷却水的流量和流量而改变的电阻值; 通过线路电连接到电阻值测量传感器（10）的MPU（微处理器单元）（30），通过将从电阻值测量传感器（10）发送的测量值与 设定标准值 以及用于显示从MPU（微处理器单元）（30）在监视器上传送的各个喷嘴的正常和异常信号的主系统（80）。
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公开(公告)号：KR1020110053699A
公开(公告)日：2011-05-24
申请号：KR1020090110348
申请日：2009-11-16
申请人： 주식회사 포스코
IPC分类号： C21C5/36
CPC分类号： C21C5/36 , C21C5/54 , C21C2100/06 , F27D15/02 , F27D2099/0095
摘要： PURPOSE: A device and method for treating slag are provided to perform efficient high-speed processing and taking off process of slag by the temperature control and circulation of the coagulated slag. CONSTITUTION: A device for treating slag comprises a slag quenching part(10), a coagulated slag collecting part, a by-product process part(90) and a coagulated slag discharge part(60). The by-product process part processes a by-product including hot gas generated in the quenching of slag. The by-product process part is connected to one of the slag quenching part and coagulated slag collecting part. The slag quenching part comprises a unit body(14), a nozzle member(16) and a slag runner(18). The unit body is installed at an input path of melting slag. The nozzle member emits gas to the unit body and adjusts one of height and injecting angle.
摘要翻译： 目的：提供一种处理炉渣的设备和方法，通过凝结炉渣的温度控制和循环来实现高效的高速加工和渣的脱除。 构成：用于处理炉渣的装置包括炉渣淬火部分（10），凝结渣收集部分，副产物加工部分（90）和凝固炉渣排出部分（60）。 副产物处理部分处理副产物，包括在炉渣淬火中产生的热气体。 副产品加工部分与渣淬火部分和凝结渣收集部分连接。 炉渣淬火部分包括单元体（14），喷嘴构件（16）和熔渣流道（18）。 单元体安装在熔渣的输入路径上。 喷嘴构件向单元体发射气体并调节高度和注射角度之一。
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公开(公告)号：KR1020000027020A
公开(公告)日：2000-05-15
申请号：KR1019980044836
申请日：1998-10-26
申请人： 주식회사 포스코
IPC分类号： B22D11/10
摘要： PURPOSE: A method for injecting melting steel into a tundish is provided to increase cleanness of melting steel by rapidly floating intervener to be divided as agitating melting steel for a long time and as preventing base metal from generating inside a nozzle. CONSTITUTION: A method is completed by filling activator(8) containing carbon into an upper nozzle(32) in a state of closing a middle plate(31) of a tundish at the first time of a casting process. Then melting steel of the tundish receives non-activated gas through an inlet pipe(34) connected to the middle plate. Therefore, the method prevents melting steel from solidifying inside the upper nozzle and floats base metal intervener to be divided for more than 10 minutes so as to increase cleanness of melting steel.
摘要翻译： 目的：提供将熔融钢注入中间包的方法，通过快速漂浮的隔离器将熔融钢的清洁度提高到长时间被分解为搅拌熔融钢，并防止贱金属在喷嘴内产生。 构成：在铸造过程的第一时间，在封闭中间包的中间板（31）的状态下，将含有碳的活化剂（8）填充到上部喷嘴（32）中来完成一种方法。 然后，中间包的熔融钢通过连接到中间板的入口管（34）接收非活化气体。 因此，该方法防止熔融钢在上部喷嘴内部凝固，并漂浮贱金属干燥器分割超过10分钟，以增加熔化钢的清洁度。
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公开(公告)号：KR100973913B1
公开(公告)日：2010-08-03
申请号：KR1020030042330
申请日：2003-06-27
申请人： 주식회사 포스코
IPC分类号： B22D41/01
摘要： 본 발명은 턴디쉬 하부에 장착된 침적노즐의 예열장치에 관한 것으로, 예열버너를 구비하고 승하강이 가능하며 상부가 개폐되도록 개폐되도록 개선된 예열오븐을 구비한 침적노즐의 예열장치에 관한 것이다.
상기 장치는, 상부가 개방된 예열오븐과 상기 예열오븐의 하부에 설치되어 상기 예열오븐 내를 가열하는 예열버너를 구비하는 본체부; 상기 예열오븐의 외측상부에 설치된 개폐실린더와 상기 개폐실린더에 의해 개폐되는 개폐부재를 구비하여 상기 예열오븐의 상부를 개폐하는 개폐부; 및 상기 예열오븐의 하부에 설치된 승강실린더와 상기 승강실린더가 하부에 고정되고 상기 예열오븐을 수직으로 안내하는 지지프레임을 구비하여 상기 예열오븐을 승강시키는 승강부;를 포함한다.
따라서, 이와 같은 본 발명에 따른 침적노즐용 개폐형 예열장치에 의하면, 침적노즐의 예열시 예열오븐의 상부로 배출되는 버너의 열기와 불꽃을 차단함으로서 주변설비를 보호하고, 배출되는 열량을 감소시켜 침적노즐의 예열효율을 높임으로서 보다 신속하고 균일하게 침적노즐을 예열하는 효과를 얻을 수 있다.
침적노즐, 예열오븐, 턴디쉬, 용강, 예열작업
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