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    • 2. 发明公开
    • 전로에 있어서의 용선의 정련 방법
    • 在转炉中精炼热金属的方法
    • KR1020140133602A
    • 2014-11-19
    • KR1020147028132
    • 2013-03-25
    • 제이에프이 스틸 가부시키가이샤
    • 나카세켄지다카하시유키오기쿠치나오키오쿠야마고로사토신고우치다유이치미키유지
    • C21C5/30C21C5/46C21C1/02
    • C21C5/32C21C1/025C21C5/35C21C5/4606C21C5/4613C21C7/0037C21C7/064C21C7/068C21C7/072C21C2250/00Y02P10/212
    • 상취 랜스(top-blowing lance)의 선단부(先端部)에 버너에 의한 화염을 형성하고, 화염의 열을 용선(溶銑) 에 착열시키면서, 전로(converter)에 있어서 용선을 탈(脫)인 처리 또는 탈탄 정련함에 있어서, 상취 랜스의 유로 내에서의 발열ㆍ연소를 걱정하는 일 없이, 착열 효율 및 생산성이 우수하고, 철 스크랩 등의 냉철원(cold iron source)의 배합 비율을 높일 수 있는 용선의 정련 방법을 제공한다.
      정련용 분체 공급 유로와, 연소용 산화성 가스 공급 유로와, 정련용 산화성 가스 공급 유로를 따로 따로 갖는 상취 랜스(3)를 이용하여, 정련용 분체 공급 유로로부터, 석회계 매용제, 산화 철, 가연성 물질 중 1종 또는 2종 이상의 정련용 분체(29)를, 연료 가스 또는 연료 가스와 불활성 가스의 혼합 가스를 반송용 가스로서 용선 욕면(浴面)을 향하여 공급함과 함께, 연소용 산화성 가스 공급 유로로부터 연소용 산화성 가스를 공급하여 상취 랜스의 선단 하방에 화염을 형성시키고, 또한, 상기 정련용 산화성 가스 공급 유로로부터 정련용 산화성 가스를 용선 욕면을 향하여 공급한다.
    • 本发明提供一种在转炉中通过在顶吹喷枪的前端形成燃烧器火焰的同时对热金属进行脱磷或脱碳来转化火焰热量到铁水中的方法,从而提供高的热传递 效率和生产率,而不会在顶吹喷枪的通道中发生升温或燃烧的风险,从而可以提高诸如铁和废钢之类的冷铁源的含量。 使用具有彼此分离的精炼粉供应通道,燃烧氧化气体供给通道和精炼氧化气体供给通道的顶吹喷枪3,在转炉中精炼热金属的方法包括:将至少一个 石灰基焊剂,氧化铁和作为精炼粉末的可燃材料29,其使用燃料气体或燃料气体和惰性气体的混合物作为载气,从精炼粉末供给通道到铁水的表面,同时 从所述燃烧氧化气体供给路径供给燃烧用氧化气体,在所述顶吹喷枪前端形成火焰,从所述精炼用氧化剂气体供给路径向所述热金属表面供给精制氧化气体。
    • 3. 发明授权
    • 용강 탈황제 공급장치
    • 用于脱硫钢的设备
    • KR101443348B1
    • 2014-09-19
    • KR1020130033810
    • 2013-03-28
    • 현대제철 주식회사
    • 김해곤박근호이재협
    • C21C1/02
    • C21C1/02C21C1/025C21C1/06
    • A device to supply molten steel desulfurizing agent is provided. According to an embodiment of the present invention, a device to supply molten steel desulfurizing agent comprises: a desulfurizing agent injection part form in a molten steel tap hole in order for desulfurizing agent to be injected to a molten steel tapped through the molten steel tap hole; a desulfurizing agent supply part connected to the desulfurizing agent injection part to supply desulfurizing agent to the desulfurizing agent injection part; and a supply tube mutually connecting between the desulfurizing agent supply part and the desulfurizing agent injection part.
    • 提供了一种供应钢水脱硫剂的设备。 根据本发明的一个实施方案,提供钢水脱硫剂的装置包括:在钢水龙头孔中设置脱硫剂注入部分形式,以便将脱硫剂注入到通过钢水龙头孔敲击的钢水中 ; 与脱硫剂注入部连接的脱硫剂供给部,向脱硫剂注入部供给脱硫剂; 以及在脱硫剂供给部和脱硫剂注入部之间相互连接的供给管。
    • 5. 发明公开
    • 용선의 탈황방법
    • 高温金属的除氧方法
    • KR1020140017193A
    • 2014-02-11
    • KR1020120083722
    • 2012-07-31
    • 현대제철 주식회사
    • 위창현김종덕이중범
    • C21C7/064
    • C21C1/02C21C1/025
    • The present invention relates to a method of desulfurizing molten iron which removes a sulfur component in the molten iron during a steel manufacturing process by reusing waste, the method comprising: a step of injecting molten iron in a desulfurizing converter; a step of injecting a desulfurizing agent, which includes welding slag, into the injected molten iron; and a step of removing the sulfur component in the molten iron by stirring the injected desulfurizing agent and the molten iron. [Reference numerals] (AA) START; (BB) END; (S10) Inject molten iron in a desulfurizing converter; (S20) Inject a desulfurizing agent including welding slag into the injected molten iron; (S30) Remove the sulfur component in the molten iron by stirring the injected desulfurizing agent and the molten iron
    • 本发明涉及一种在钢铁制造过程中通过再利用废料除去铁水中硫成分的方法,该方法包括:在脱硫转炉中注入铁水的步骤; 将包含焊渣的脱硫剂注入到注入的铁水中的步骤; 以及通过搅拌注入的脱硫剂和铁水来除去铁水中的硫成分的步骤。 (附图标记)(AA)START; (BB)END; (S10)在脱硫转炉中注入铁水; (S20)向注入的铁水中注入包括焊渣的脱硫剂; (S30)通过搅拌注入的脱硫剂和铁水来除去铁水中的硫成分
    • 8. 发明公开
    • 스테인리스강 제조용 용선의 탈린 방법
    • 用于制造不锈钢的铁氧体的分散方法
    • KR1020140000892A
    • 2014-01-06
    • KR1020120068570
    • 2012-06-26
    • 주식회사 포스코
    • 석민오정상열김용환
    • C21C1/02
    • C21C1/025C21C5/005
    • The present invention relates to a dephosphorizing method of molten iron for manufacturing stainless steels to manufacture stainless steels using blast furnace molten iron, and provides a manufacturing method of stainless steels comprising a step for preliminary treatment of molten iron manufactured from a blast furnace; and a step for decarburizing the molten iron in a stainless converter. The preliminary treatment step in the present invention uses a dephosphorizing flux containing CaO-CaF2-FeOx for molten iron manufactured from the blast furnace, where the molten iron is controlled so as to achieve [%C]>=4%, [%Si] 0%. [Reference numerals] (AA) Dephosphorization rate(%); (BB) Example 3; (CC) Example 2; (DD) Comparative example 1; (EE) Example 1; (FF) Time(min.)
    • 本发明涉及一种用于制造使用高炉铁水制造不锈钢的不锈钢的铁水脱磷方法,提供一种不锈钢的制造方法,包括用于预处理由高炉制造的铁水的步骤; 以及在不锈钢转炉中对铁水进行脱碳的步骤。 本发明的预处理工序使用含有CaO-CaF 2 -FeO x的脱磷助焊剂作为铁水制成的铁水,其中铁水被控制,以达到[%C]> = 4%,[%Si] <= 0.5%,[%Cr]> 0%。 (AA)脱磷率(%) (BB)实施例3; (CC)实施例2; (DD)比较例1; (EE)实施例1; (FF)时间(分钟)
    • 9. 发明公开
    • 기능성 철강제품용 제강장치 및 그 제강방법
    • 制造功能钢产品及其制造工艺
    • KR1020130098796A
    • 2013-09-05
    • KR1020120020600
    • 2012-02-28
    • 현대제철 주식회사
    • 황병원
    • C21C5/28C21C1/02
    • C21C5/00C21C1/025C21C5/32C21C7/0075C21C7/10C21C2250/02
    • PURPOSE: An apparatus and method for making steel for a functional steel product are provided to allow the product to radiate far-infrared rays and block electromagnetic waves, thereby maintaining the health of a user. CONSTITUTION: An apparatus for making steel for a functional steel product includes a steel making ladle (70), a vacuum tank (72), and a feeding part (80). The steel making ladle contains molten iron. The vacuum tank is inserted into the steel making ladle, circulates the molten iron, and controls the amount of carbon in the molten iron. The feeding part is connected to the vacuum tank, and feeds functional mineral to the molten iron. The feeding part has a hopper and a connecting pipe. The hopper at the upper side of the vacuum tank contains the functional mineral. The connecting pipe connects the hopper with the vacuum tank.
    • 目的:提供一种用于制造功能钢产品的钢的设备和方法,以使产品辐射远红外线并阻止电磁波,从而保持用户的健康。 构成:用于制造功能性钢产品的钢的装置包括钢炼钢包(70),真空罐(72)和进料部(80)。 炼钢钢包含铁水。 将真空槽插入炼钢钢包中,使铁水循环,并控制铁水中的碳量。 进料部分连接到真空罐,并将功能性矿物质送入铁水。 进料部分有料斗和连接管。 真空罐上侧的料斗包含功能性矿物。 连接管将料斗与真空罐连接。