公开(公告)号：KR1020120118300A

公开(公告)日：2012-10-26

申请号：KR1020110035785

申请日：2011-04-18

申请人： 주식회사 포스코

发明人： 박상채 ,  서성모 ,  박현서 ,  김용인

IPC分类号： C21C5/52

CPC分类号： Y02P10/216 ,  C21C5/527 ,  C21C2200/00 ,  F27D15/02 ,  Y02P10/242

摘要： PURPOSE: A working method of an electric furnace is provided to replace a large portion of quicklime, inserted as a supplementary material, with CaO included in slag. CONSTITUTION: A working method of an electric furnace comprises the steps of: rapidly cooling molten slag, charging scrap into an electric furnace, melting the scrap, charging the rapid-cooled slag with quicklime into the electric furnace, and making molten metal react with the quicklime and rapid-cooled slag in the electric furnace. [Reference numerals] (AA) Collecting electric furnace slag; (BB) Rapidly cooling the electric furnace slag(PS ball slag); (CC) Amorphizing and micro-granulating the electric furnace slag(rapidly cooled slag); (DD) Charging scrap into an electric furnace; (EE) Generating arc in the electric furnace to melt the scrap; (FF) Charging quicklime and the rapidly cooled slag into the electric furnace; (GG) Making molten steel react with the quicklime and rapidly cooled slag in the electric furnace; (HH) Tapping the molten steel

摘要翻译： 目的：提供一种电炉的工作方法，以取代大部分作为补充材料的生石灰，包含在炉渣中的CaO。 构成：电炉的工作方法包括以下步骤：快速冷却熔渣，将废料装入电炉，熔化废料，将生石灰快速冷却的炉渣装入电炉中，使熔融金属与 生石灰和快速冷却的炉渣在电炉中。 （附图标记）（AA）收集电炉渣; （BB）快速冷却电炉渣（PS球渣）; （CC）电炉炉渣（快速冷渣）的非晶化和微粒化; （DD）将废料装入电炉; （EE）在电炉中产生电弧以熔化废料; （FF）充电生石灰和快速冷却的炉渣进入电炉; （GG）使钢水与电炉中的生石灰和快速冷却的炉渣反应; （HH）攻破钢水

公开(公告)号：KR1020120110579A

公开(公告)日：2012-10-10

申请号：KR1020110028513

申请日：2011-03-30

申请人： 현대제철 주식회사

发明人： 홍진명 ,  김해곤

IPC分类号： C21C5/28

CPC分类号： Y02P10/212 ,  C21C5/28 ,  C21C2200/00 ,  Y02P10/242

摘要： PURPOSE: A substitute for scrap iron and a manufacturing method thereof and a method for recovering iron from steelmaking sludge using the same are provided to reduce the costs for a steel making process by recycling byproducts. CONSTITUTION: A substitute for scrap iron comprises Kish graphite of 10-15 weight%, cement of 5-10 weight%, and steel making sludge produced in a steel making process, wherein the total content of Fe in the steel making sludge is 50 weight%. A method for manufacturing the substitute comprises the steps of: recovering Kish graphite deposited in hot metal slag during desulfurization of hot metal(S10), recovering steel making sludge produced during a steel making process(S20), mixing the Kish graphite, the steel making sludge, and cement at a predetermined ratio(S30), and molding the mixture(S40). [Reference numerals] (AA) Start; (BB) End; (S10) Recovering Kish graphite; (S20) Recovering steel making sludge; (S30) Mixing Kish the graphite and steel making sludge with cement; (S40) Molding the mixture

摘要翻译： 目的：提供废铁的替代品及其制造方法以及使用该废铁的炼钢污泥中的铁回收方法，以通过再循环副产品来降低炼钢工艺的成本。 构成：废铁的替代品包括10-15重量％的Kish石墨，5-10重量％的水泥和在炼钢过程中生产的炼钢污泥，其中炼钢污泥中Fe的总含量为50重量 ％。 一种制造替代品的方法包括以下步骤：回收在铁水脱硫期间沉积在铁水渣中的石灰石（S10），回收在炼钢过程中产生的炼钢污泥（S20），将Kish石墨，炼钢 污泥和水泥（S30），并成型混合物（S40）。 （附图标记）（AA）开始; （BB）结束; （S10）回收Kish石墨; （S20）回收炼钢污泥; （S30）将石墨和炼钢污泥与水泥混合; （S40）将混合物成型

公开(公告)号：KR1020120074377A

公开(公告)日：2012-07-06

申请号：KR1020100136189

申请日：2010-12-28

申请人： 주식회사 포스코

发明人： 최주 ,  최주한 ,  서정도 ,  서성모

IPC分类号： C21C1/04

CPC分类号： Y02P10/212 ,  C21C1/04 ,  C21C7/0087 ,  C21C2200/00 ,  F27D2019/0003

摘要： PURPOSE: A method for pre-treating and treating pig irons is provided to restrict the increase of S(Sulfur) by melting scrap irons using oxidation heat in a refining container in advance. CONSTITUTION: A method for pre-treating and treating pig irons comprises following steps. Scrap irons are putted into a refining container filled with the pig irons. The scrap irons are melted at the same time as the desiliconization is processed by blowing pure oxygen in. The desiliconized pig irons are desulfurized(second preliminary process). The desulfurized pig irons are decarbonized.

摘要翻译： 目的：提供一种预处理和治疗猪铁的方法，以预先在精炼容器中通过使用氧化热熔融废铁来限制S（硫）的增加。 构成：猪铁预处理和处理方法包括以下步骤。 将废铁放入装有猪铁的精炼容器中。 在通过吹入纯氧进行脱硅处理的同时，废铁熔化。将脱硅的猪铁脱硫（第二初步处理）。 脱硫猪铁脱碳。

公开(公告)号：KR1020120073791A

公开(公告)日：2012-07-05

申请号：KR1020100135658

申请日：2010-12-27

申请人： 주식회사 포스코 ,  재단법인 포항산업과학연구원

发明人： 조문규

IPC分类号： C21C5/46 ,  C21C5/44

CPC分类号： C21C5/445 ,  C21C5/4653 ,  C21C2200/00 ,  F27D1/1636

摘要： PURPOSE: A sleeve for repair of a converter tapping hole and a repair method using the same are provided to prevent damage to a sleeve from in a tapping hole of a converter when tapping molten steel by forming a protective layer on the inner periphery of the sleeve. CONSTITUTION: A sleeve(30) for repair of a converter tapping hole is inserted into a tapping hole(20) of a converter(1). The sleeve has a protective layer(40) formed by coating the inner periphery of the sleeve with a spout material. The spout material is prepared by mixing MgO of 5-15% into a mixture of magnesia-graphite waste refractories and converter slag. The magnesia-graphite waste refractories comprises C of 17-20% and MgO of 79-82%.

摘要翻译： 目的：提供用于修理转炉攻丝孔的套筒和使用其的修理方法，以防止在通过在套筒的内周上形成保护层来对钢水进行钢水冲击时从转炉的出钢孔中损坏套筒 。 构成：用于修理转炉攻丝孔的套筒（30）被插入到转换器（1）的出钢孔（20）中。 套筒具有通过用喷嘴材料涂覆套筒的内周而形成的保护层（40）。 通过将5-15​​％的MgO混合到氧化镁 - 石墨废弃耐火材料和转炉渣的混合物中来制备喷口材料。 氧化镁 - 石墨废物耐火材料包括17-20％的C和79-82％的MgO。

公开(公告)号：KR1020120073525A

公开(公告)日：2012-07-05

申请号：KR1020100135317

申请日：2010-12-27

申请人： 주식회사 포스코

发明人： 이상훈 ,  황창연

IPC分类号： F27D17/00

CPC分类号： F27D21/02 ,  C21B2100/02 ,  C21B2200/00 ,  C21C2100/02 ,  C21C2200/00 ,  F27D17/004 ,  F27D2099/0086

摘要： PURPOSE: A sight hole device is provided to prevent contamination of a transparent plate because naphthalene particles or tar particles of mixed gas is not attached to the inner surface of the transparent plate. CONSTITUTION: A sight hole device(100) comprises a body unit(110), a rotating ball(120), and an operating unit(130). In order to observe the states of an internal space of a target observation object, the body unit is mounted on the exterior of a body of the target observation body. The rotating ball is rotatably assembled in an internal space of the body unit and has a transparent plate(122) and a mounting hole(123). The mounting hole is perforated through a body. The transparent plate is changeably assembled to the mounting hole. The lower end of the operating unit is assembled to a shaft hole of the rotating ball. The operating unit rotates the rotating ball.

摘要翻译： 目的：提供观察孔装置，以防止透明板的污染，因为混合气体的萘颗粒或焦油颗粒未附着到透明板的内表面。 构成：观察孔装置（100）包括主体单元（110），旋转球（120）和操作单元（130）。 为了观察目标观察对象的内部空间的状态，主体单元安装在目标观察体的身体的外部。 旋转球可旋转地组装在主体单元的内部空间中，并具有透明板（122）和安装孔（123）。 安装孔穿过主体。 透明板可安装在安装孔上。 操作单元的下端组装到旋转球的轴孔。 操作单元旋转旋转球。

公开(公告)号：KR1020100072932A

公开(公告)日：2010-07-01

申请号：KR1020080131485

申请日：2008-12-22

申请人： 재단법인 포항산업과학연구원

发明人： 박흥수 ,  김제영 ,  전희동 ,  한건우 ,  이창훈 ,  이민영 ,  박주형

IPC分类号： C21B3/04 ,  F27D17/00

CPC分类号： Y02W30/542 ,  F27D17/004 ,  C21B3/04 ,  C21B2200/00 ,  C21C7/00 ,  C21C2200/00

摘要： PURPOSE: A method and an apparatus depriving heat from high-temperature slag are provided to efficiently deprive heat from high-temperature slag by forming high temperature gradient between the high-temperature slag and a tubular reactor. CONSTITUTION: An apparatus depriving heat from high-temperature slag comprises a molten slag atomizer, a slag particle retaining vessel(4), and a catalyst reactor(7). The molten slag atomizer atomizes molten slag discharged from a transfer container. The slag particle retaining vessel retains the atomized slag with free fall. The catalyst reactor is installed within the slag particle retaining vessel and deprives heat from the slag particles.

摘要翻译： 目的：提供从高温炉渣中剥夺热量的方法和设备，以通过在高温炉渣和管式反应器之间形成高温梯度来有效地从高温炉渣中除去热量。 构成：从高温炉渣剥夺热量的装置包括熔渣炉雾化器，渣渣保持容器（4）和催化剂反应器（7）。 熔融炉渣雾化器雾化从转移容器排出的熔渣。 炉渣颗粒保留容器保持雾化炉渣自由落体。 催化剂反应器安装在炉渣颗粒保持容器内并从炉渣颗粒中消除热量。

公开(公告)号：KR1020100071660A

公开(公告)日：2010-06-29

申请号：KR1020080130456

申请日：2008-12-19

申请人： 주식회사 포스코

发明人： 강수창 ,  박정호 ,  원민희 ,  박종민

IPC分类号： C21C1/02

CPC分类号： Y02P10/212 ,  C21C7/0645 ,  C21C2200/00

摘要： PURPOSE: A dephosphorizing agent for FeMn, a recycling method of byproducts from the dephosphorizing for FeMn, a recovering method of byproducts from dephosphorizing for FeMn and a dephosphorizing agent for steel making are provided to reduce the discharge amount of carbon dioxide by collecting carbon dioxide produced during dephosphorization of FeMn and recycle dust produced during the process. CONSTITUTION: In a dephosphorizing agent for FeMn, one or more flux selected among Al2O3, NaF, and Na3AlF4 are mixed in BaCO3. The content of Al2O3 or Na3AlF4 is 5~10weight% and that of NaF is 5~20 weight%. In case that the melting temperature of FeMn is 1400°C, Na3AlF4 is selected as flux.

摘要翻译： 目的：提供FeMn脱磷剂，FeMn脱磷副产物回收方法，FeMn脱磷副产物回收方法及炼钢脱磷剂，通过收集生成二氧化碳减少二氧化碳排放量 在FeMn脱磷过程中产生的再循环粉尘。 构成：在FeMn的脱磷剂中，将选自Al 2 O 3，NaF和Na 3 AlF 4中的一种或多种助熔剂在BaCO 3中混合。 Al2O3或Na3AlF4的含量为5〜10重量％，NaF的含量为5〜20重量％。 在FeMn的熔融温度为1400℃的情况下，选择Na 3 AlF 4作为助熔剂。

公开(公告)号：KR100884243B1

公开(公告)日：2009-02-17

申请号：KR1020070115126

申请日：2007-11-12

申请人： 주식회사 포스코

发明人： 김영화 ,  정성호 ,  김주국

IPC分类号： C21C5/30 ,  C21C5/28

CPC分类号： Y02P10/212 ,  C21C5/44 ,  C21C5/30 ,  C21C2200/00 ,  F27D1/1684 ,  Y02P10/242

摘要： A method for manufacturing molten steel containing low-phosphorus using finex hot metal is provided to use decarbonization slag as a material instead of quicklime in order to protect a furnace and reduce manufacturing cost by reducing the amount of quicklime to be used as a material. A method for manufacturing molten steel containing low-phosphorus using finex hot metal comprises the following steps. Fine iron ore is reduced using fluidized reduction furnaces(3,4,5) and inputted into a melting furnace to manafacture a hot metal. A furnace is coated with decarbonization slag. Finex hot metal and scrap iron are inputted into the furnace. The finex hot metal is smelted. The smelted finex hot metal is pulled out. The basicity of decarbonization slag is from 6.5 to 7.5.

摘要翻译： 提供一种使用精细铁水制造含有低磷的钢水的方法，使用脱碳渣作为材料代替生石灰，以保护炉，并通过减少用作材料的生石灰的量来降低制造成本。 使用精细铁水制造含有低磷的钢水的方法包括以下步骤。 使用流化还原炉（3,4,5）将细铁矿减少并输入到熔炉中以制造热金属。 炉子涂有脱碳渣。 Finex热金属和废铁被输入炉中。 精美的热金属被冶炼。 冶炼的精细铁水被拉出。 脱碳渣的碱度为6.5〜7.5。

公开(公告)号：KR1020080110127A

公开(公告)日：2008-12-18

申请号：KR1020070058494

申请日：2007-06-14

申请人： 한국산업기술평가원(관리부서:요업기술원)

发明人： 이종규 ,  추용식 ,  송훈 ,  이정희

IPC分类号： C21C7/04

CPC分类号： C21C7/076 ,  C21C2200/00 ,  Y02P10/242

摘要： In the temperature of the CaF2 and equivalent or less than, it is done by purpose to build up the melting point of the slag and can improve the mobility. A low temperature solvent formation for the steel manufacture refining using the quenched blast furnace slag contains calcium aluminate based minimill refining slag 60~84 weight, the metal aluminum 8~16 weight%, and the fly ash 4~16 weight% and quenched blast furnace slag 4~12 weight%, and performs the followings: a process where it transports the minimill refining slag generating during the minimill steelmaking process and the minimill refining slag separately cools; a process of smashing the cooled minimill refining slag to the size less than 50mm; a process of pulverizing the crushed minimill refining slag as described above to the size less than 3mm; a process of selecting to the minimill refining slag exceeding with 3mm; and a process of removing the ferric oxide from the minimill refining slag less than 3mm selected in the screening process.

摘要翻译： 在CaF2的温度和等于或小于的温度下，通过目的来建立熔渣的熔点并且可以提高流动性。 使用淬火高炉渣的钢铁制造精炼的低温溶剂形成包含基于铝酸钙的最小精炼渣60〜84重量％，金属铝8〜16重量％，粉煤灰4〜16重量％，淬火高炉 炉渣4〜12重量％，执行以下步骤：运输最小炼钢过程中产生的最小化精炼渣和微细精炼渣分别冷却的过程; 将冷却的最小化精炼渣粉碎成尺寸小于50mm的过程; 将上述破碎的微细精炼渣粉碎至小于3mm的尺寸的方法; 选择超过3mm的最小化精炼渣的过程; 以及从筛选过程中选择的小于3mm的微细精炼渣除去氧化铁的方法。

公开(公告)号：KR1020080105635A

公开(公告)日：2008-12-04

申请号：KR1020070053457

申请日：2007-05-31

申请人： 문상우

发明人： 문상우

IPC分类号： C22B7/00 ,  C22B3/00

CPC分类号： C22B7/04 ,  C21C2200/00 ,  C22B7/006 ,  Y02W30/543 ,  Y02W30/822

摘要： By processing the waste in which the value for use is high and obtaining the metal in which the specific oxide is mixed and using this as the product raw material the invention makes into resources waste. A method of manufacturing a compound of iron oxide, zinc oxide, manganese oxide, copper oxide and cobalt oxide using electric furnace dust or acidic waste solution or waste water sludge of steel works comprises a step for stand-by preparing for the waste which selectively accumulates the oxidization liquid of the dust or the waste water disposal plant sludge or the product factory and used as the steelshop electricity in which the value of resource is high; a step for withdrawal is the filtrate stand-by filtrate the prepared waste is put in into the looks of a mountain selected in the sulphuric acid aqueous solution or the hydrochloric acid aqueous solution than and it heats and reacts to 90~100‹C 2~3 hours and the fe component, zinc component, manganese, copper, cobalt within effluent is dissolved to acid and it filters; a step for adding the prepared filtrate in the high concentration ash liquid and that mixing 2~3 hours is aged with the PH 7~7.5 state and forming the carbonate within the waste water and solidifying and filtering and collected taxes; and a step for obtaining the product in which the ferric oxide, the zinc oxide, the manganese oxide, the copper oxide, the cobalt oxide is mixed by heating the solid material collected taxes with 150~200‹C and removing the carbon dioxide.

摘要翻译： 通过处理使用价值高的废物，并获得其中混合特定氧化物的金属，并将其用作本发明的资源浪费的产品原料。 使用电炉粉尘或酸性废液或钢铁废水污泥制造氧化铁，氧化锌，氧化锰，氧化铜和氧化钴的化合物的方法包括：备选废物的选择性积累步骤 灰尘或废水处理厂污泥或产品厂的氧化液，用作资源价值高的钢材电厂; 取出的步骤是将滤液备用滤液置于硫酸水溶液或盐酸水溶液中选择的山脉中，并加热并反应至90〜100℃〜 3小时，流出液中的Fe组分，锌组分，锰，铜，钴溶解到酸中，过滤; 将制备的滤液加入高浓度灰分液中，混合2〜3小时，PH7〜7.5状态老化，废水中形成碳酸盐，固化过滤收税; 以及通过加热固体物质150〜200℃并除去二氧化碳来获得其中氧化亚铁，氧化锌，氧化锰，氧化铜，氧化钴混合的产物的步骤。