公开(公告)号：KR1020140042040A

公开(公告)日：2014-04-07

申请号：KR1020120107753

申请日：2012-09-27

申请人： 현대제철 주식회사

发明人： 황진일 ,  설진삼 ,  이형철

IPC分类号： C21C5/52 ,  C21C5/54

CPC分类号： Y02P10/216 ,  C04B5/06 ,  C04B18/142 ,  C21C5/54 ,  C21C7/0087 ,  C21C2200/00

摘要： The present invention relates to a slag reduction method. By injecting a reducing agent into a molten steel by jetting a direct reducing agent into a slag in a process of discharging through a molten steel outlet, additionally formed other than a molten steel outlet form on an electric furnace, the reducing agent can be evenly injected to a slag put to a slag port. Thereby, FeO contained in the slag, generated from a steel making process, can be reduced to a maximal degree, so as to increase the amount of molten steel production and to utilize the slag for a building material.

摘要翻译： 本发明涉及一种除渣方法。 通过在钢水出口的排出过程中将直接还原剂喷射到炉渣中，在电炉上另外形成钢水出口形式以外，可以将还原剂注入钢水中，还原剂可均匀地注入 将渣放入渣口。 由此，能够将由炼钢工序生成的炉渣中含有的FeO降低到最大程度，从而增加钢水的生产量，并利用炉渣作为建筑材料。

公开(公告)号：KR1020130059757A

公开(公告)日：2013-06-07

申请号：KR1020110125893

申请日：2011-11-29

申请人： 재단법인 포항산업과학연구원

发明人： 김민균

IPC分类号： C21C5/28 ,  C21C7/00

CPC分类号： C21C5/36 ,  C21C2200/00

摘要： PURPOSE: A deslopping agent of a converter containing sewage sludge and a manufacturing method thereof are provided to economically and environmentally-friendly treat the sewage sludge because the sewage sludge is used as the deslopping agent of the converter. CONSTITUTION: A deslopping agent of a converter containing sewage sludge is composed of 50-70 wt.% of the sewage sludge, 20-40 wt.% of converter sludge, and 5-15 wt.% of a binder. The binder is one or more selected from quick-setting cement, bentonite, and water glass. A manufacturing method of the deslopping agent of the converter is as follows: a step of mixing raw materials; a step of obtaining a molded object by press-molding the mixed raw materials; and a step of drying the molded object.

摘要翻译： 目的：提供含有污水污泥的转化器的脱盐剂及其制造方法，由于污水污泥用作转化器的脱盐剂，因此经济和环保处理污水污泥。 构成：含有污水污泥的转化器的脱盐剂由50-70重量％的污水污泥，20-40重量％的转化污泥和5-15重量％的粘合剂组成。 粘合剂是选自速凝水泥，膨润土和水玻璃中的一种或多种。 转炉脱盐剂的制造方法如下：原料混合工序; 通过对所述混合原料进行加压成型获得成型体的工序; 以及干燥成型体的工序。

公开(公告)号：KR1020130045955A

公开(公告)日：2013-05-06

申请号：KR1020137009853

申请日：2009-03-03

申请人： 제이에프이 스틸 가부시키가이샤

发明人： 마츠이아키토시 ,  우치다유이치 ,  키시모토야스오 ,  오가사와라후토시

IPC分类号： C21C1/04 ,  C21C1/02 ,  C22B7/00 ,  C22B9/10

CPC分类号： C22B9/106 ,  C21C1/025 ,  C21C7/0645 ,  C21C2200/00 ,  C22B1/005 ,  C22B9/10 ,  C22B15/0056 ,  Y02P10/214 ,  Y02P10/22 ,  Y02P10/234 ,  Y02P10/236

摘要： 철 원료로서 구리 함유 강 스크랩을 사용하여 고급강을 제조하는 것에 있어, 구리 함유 강 스크랩을 가탄용해하여 제강용 용선을 제조하고, 그 후, 상기 용선에 포함되는 구리를 유황함유 플럭스를 이용하여 제거하고, 이어서, 용선에 포함되는 유황을 제거함으로써, 강 스크랩 중의 구리를 효율좋고, 또한, 대규모의 설비를 필요로 하지 않고 제거한다.
상기 유황함유 플럭스로서 Na
2 S를 주성분으로 하는 플럭스를 사용하는 것, 용선에 포함되는 구리의 제거처리를, 기계교반식 정련장치로 행하고, 혹은, 플럭스 불어넣기 법에 의해 행하는 것이 바람직하고, 또한, 내부에 탄재베드를 형성한 수형로를 이용하여 유황 함유율이 비교적 높은 용선을 제조하여 탈구리처리에 제공하는 것이 바람직하다.

公开(公告)号：KR1020130034504A

公开(公告)日：2013-04-05

申请号：KR1020110098546

申请日：2011-09-28

申请人： 현대제철 주식회사

发明人： 서홍규

IPC分类号： C21C5/52

CPC分类号： Y02P10/216 ,  C04B5/06 ,  C04B18/142 ,  C21C2200/00 ,  F27D15/00 ,  Y02W30/94

摘要： PURPOSE: A method for processing oxidizing slag is provided to prevent the generation of cracks or ruptures of concrete even if an aggregate contains reduction slag because free-CaO contained in the reduction slag is changed to slaked lime. CONSTITUTION: A method for processing oxidizing slag is as follows; a step for manufacturing reduction slag to fine particles; and a step for reducing the content of Fe by fixing the fine particles of the reduction slag to the oxidizing slag(S15). The method for manufacturing the reduction slag to the fine particles is as follows; a step for reacting the reduction slag and water(S11); and a step for crushing and drying the reduction slag. [Reference numerals] (AA) Start; (BB) End; (S11) Aging reduction slag; (S12) Crushing and drying reduction slag; (S13) Discharging oxidizing slag to a port; (S14) Providing a fine particle injector to the port; (S15) Injecting the fine particles of reduction slag into the oxidizing slag; (S16) Mixing the fine particles of reduction slag with the oxidizing slag;

摘要翻译： 目的：提供一种处理氧化炉渣的方法，以防止混凝土产生裂缝或破裂，即使骨料含有还原渣，因为还原渣中含有的自由CaO变为熟石灰。 构成：处理氧化渣的方法如下： 将还原渣还原成细颗粒的步骤; 以及通过将还原渣的细颗粒固定到氧化渣来降低Fe的含量的步骤（S15）。 还原渣生成微粒的方法如下： 使还原渣和水反应的步骤（S11）; 以及对还原渣进行粉碎和干燥的步骤。 （附图标记）（AA）开始; （BB）结束; （S11）老化还原炉渣; （S12）粉碎和干燥还原渣; （S13）将氧化渣排放到端口; （S14）向该端口提供微粒喷射器; （S15）将还原渣的微粒注入氧化炉渣中; （S16）将还原渣的微粒与氧化渣混合;

公开(公告)号：KR1020130024186A

公开(公告)日：2013-03-08

申请号：KR1020110087466

申请日：2011-08-30

申请人： 현대제철 주식회사

发明人： 위창현 ,  김종덕

IPC分类号： C21C7/06

CPC分类号： C21C7/0087 ,  C21C2200/00

摘要： PURPOSE: A slag deoxidizer is provided to reduce Fe oxide contained in slag without reducing the oxygen concentration in molten steel when being inputted. CONSTITUTION: A slag deoxidizer(50) contains an Al-Mg metallic compound and limestone(CaCO3) coated on the surface of the Al-Mg metallic compound. The Al-Mg metallic compound contains 3-10 wt% of magnesium and 90-97 wt% of aluminum. The limestone is coated on the surface of the Al-Mg metallic compound with a thickness of 1-3 mm. The slag deoxidizer is inputted in a revolving furnace(10) just before tapping. A slag layer(15) can contain FeO, SiO2, CaO, P2O5, and MnO, and molten steel contains a large amount of metal substances containing Fe; oxygen; nitrogen; carbon.

摘要翻译： 目的：提供一种炉渣脱氧剂，用于减少炉渣中的Fe氧化物，而不会降低钢水中的氧浓度。 构成：炉渣脱氧剂（50）含有Al-Mg金属化合物和涂覆在Al-Mg金属化合物表面上的石灰石（CaCO3）。 Al-Mg金属化合物含有3-10重量％的镁和90-97重量％的铝。 将该石灰石涂覆在厚度为1-3mm的Al-Mg金属化合物的表面上。 炉渣脱氧剂刚好在攻丝之前输入旋转炉（10）。 渣层（15）可以含有FeO，SiO2，CaO，P2O5和MnO，钢水含有大量含有Fe的金属物质; 氧; 氮; 碳。

公开(公告)号：KR1020120132909A

公开(公告)日：2012-12-10

申请号：KR1020110051307

申请日：2011-05-30

申请人： 현대제철 주식회사

发明人： 김해곤 ,  이광근

IPC分类号： C21C7/064 ,  C21C5/52

CPC分类号： Y02P10/216 ,  C21C7/0645 ,  C21C5/527 ,  C21C2200/00

摘要： PURPOSE: A molten steel dephosphorizing agent and a dephosphorizing method for an electric furnace are provided to improve the recovery rate of molten steel and substitute quicklime by recycling KR(Kanvara Reactor) slag in the electric furnace. CONSTITUTION: A molten steel dephosphorizing method for an electric furnace comprises the steps of: charging scraps and a predetermined amount of quicklime into the electric furnace(S11), melting the scraps with arc heat(S12), blowing oxygen into the electric furnace for an oxygen refining process(S13), and accelerating a dephosphorizing process by injecting 1.6-2.1 kg of KR slag per 1 kg of quicklime into molten steel through a water-cooling lance to compensate shortage of quicklime(S14). [Reference numerals] (AA) Start; (BB) End; (S11) Charging scrap and quicklime to electric converter; (S12) Melting scrap; (S13) Blowing oxygen; (S14) Injecting about 2Kg of KR slag per 1K of quicklime as substitute of quicklime; (S15) Removing phosphorous oxide reacting with CaO of KR slag as slag

摘要翻译： 目的：提供一种钢水脱磷剂和电炉的脱磷方法，以提高钢水的回收率，并通过在电炉中回收KR（Kanvara反应器）炉渣来代替生石灰。 构成：电炉的钢水脱磷方法包括以下步骤：向电炉中加入废料和预定量的生石灰（S11），用电弧加热熔化废料（S12），将氧气吹入电炉中 氧气精炼工艺（S13），并通过水冷喷枪将每1kg生石灰注入1.6-2.1kg KR渣，以补偿生石灰不足，从而加速脱磷过程（S14）。 （附图标记）（AA）开始; （BB）结束; （S11）向电动转换器充电废料和生石灰; （S12）熔融废料; （S13）吹氧; （S14）每1K生石灰注入约2Kg的KR渣作为生石灰的替代品; （S15）除去与KR渣的CaO反应的氧化磷作为渣

公开(公告)号：KR101185238B1

公开(公告)日：2012-09-21

申请号：KR20120016589

申请日：2012-02-17

申请人： YOON YEO BEOM

发明人： YOON YEO BEOM

IPC分类号： C21C7/064

CPC分类号： C21C7/064 ,  C21C2200/00

摘要： PURPOSE: An environmentally-friendly dephosphorizing refining agent and a manufacturing method thereof are provided to prevent the generation of dust during transfer, storage, and work by regulating the grain size of a pellet, a bracket, and an extruded material to a 1-50 mm range. CONSTITUTION: An environmentally-friendly dephosphorizing refining agent is prepared by drying a mixed material comprising 25-45 weight% of CaCO3, 25-50 weight% of ferric oxide, 10-30weight% of Na3AlF6, and 5-10 weight% of manganese oxide(S10-S30). The manganese oxide is made of slag or powder. The CaCO3 is made of powder, produced by processing limestone or dolomite. The ferric oxide is made of mill scale, produced from a milling process. The Na3AlF6 is made of cryolite powder. [Reference numerals] (S10) Mixing step; (S20) Forming step; (S30) Drying step

摘要翻译： 目的：提供一种环保型脱磷精制剂及其制造方法，以防止在转移，保存和加工过程中通过将颗粒，支架和挤出材料的粒径调节至1-50 mm范围。 构成：通过干燥包含25-45重量％的CaCO 3，25-50重量％的氧化铁，10-30重量％的Na 3 AlF 6和5-10重量％的氧化锰的混合材料制备环境友好的脱磷精炼剂 （S10-S30）。 氧化锰由渣或粉末制成。 CaCO3由粉末制成，通过加工石灰石或白云石生产。 氧化铁由研磨工艺制成，由氧化铁制成。 Na3AlF6由冰晶石粉末制成。 （附图标记）（S10）混合步骤; （S20）成型步骤; （S30）干燥步骤

公开(公告)号：KR1020120033105A

公开(公告)日：2012-04-06

申请号：KR1020100094704

申请日：2010-09-29

申请人： 현대제철 주식회사

发明人： 서유식 ,  윤성섭

IPC分类号： C22B1/16 ,  C22B1/24

CPC分类号： Y02P10/212 ,  C22B1/248 ,  C21B2200/00 ,  C21C2200/00 ,  C22B1/16

摘要： PURPOSE: A method for recycling byproducts from iron making is provided to reduce dust scattering in an iron making factory and to cut down on manufacturing costs for sintered ore. CONSTITUTION: A method for recycling byproducts from iron making comprises the steps of: collecting byproducts from an iron making process(S10), molding the byproducts into a brick form(S20), drying the bricks, mixing the bricks with raw materials for a sintering process, and putting the mixed bricks into an ignition furnace in a sintering process(S30).

摘要翻译： 目的：提供一种从炼铁厂回收副产物的方法，以减少炼铁厂的粉尘散射，降低烧结矿石的制造成本。 构成：从炼铁中回收副产物的方法包括以下步骤：从炼铁工艺中收集副产物（S10），将副产物成型为砖形（S20），干燥砖块，将砖块与原料混合进行烧结 处理，并在烧结工序中将混合砖放入点火炉中（S30）。

公开(公告)号：KR100991266B1

公开(公告)日：2010-11-01

申请号：KR20100068832

申请日：2010-07-16

申请人： DONG KYONG INDUSTRY CO LTD

发明人： PARK JONG YUL

IPC分类号： C22B1/14

CPC分类号： C22B1/24 ,  C21B3/04 ,  C21B2200/00 ,  C21C2200/00 ,  Y02W30/542

摘要： PURPOSE: A briquetting device for steel waste is provided to improve recycling efficiency and workability by easily replacing a damaged part of a molding roll. CONSTITUTION: A briquetting device for steel waste is composed of a pair of molding rolls(1,1'), molding segments(4), shafts(2,2'), molding pockets(41,41'), multiple key grooves, and fastening bolts(6). The molding rolls are protruded from the shafts. The molding segments form an assembling shaft hole(42). The molding pockets are formed on the outer surface of the molding segments. The key grooves are formed on both surfaces of the molding segments. Fixing keys(5) are coupled to the key grooves using the fastening bolts.

摘要翻译： 目的：提供用于钢铁废料的压块装置，通过轻易更换成型辊的损坏部分来提高循环利用效率和可加工性。 构成：用于废钢的压块装置由一对成型辊（1,1'），成型段（4），轴（2,2'），模制袋（41,41'），多个键槽， 和紧固螺栓（6）。 成型辊从轴突出。 模制段形成组装轴孔（42）。 模制袋形成在模制段的外表面上。 键槽形成在成型段的两个表面上。 固定键（5）使用紧固螺栓联接到键槽。

公开(公告)号：KR1020090073501A

公开(公告)日：2009-07-03

申请号：KR1020070141464

申请日：2007-12-31

申请人： 주식회사 포스코

发明人： 김대중 ,  김승곤

IPC分类号： C21C5/36

CPC分类号： Y02P10/212 ,  C21C5/36 ,  C21C5/30 ,  C21C2200/00

摘要： A method for manufacturing converter slag with low concentration of phosphorus oxides is provided to ensure enough dephosphorization effect by reducing phosphorus less than 20% remaining in hot metal to phosphorus oxide less than 1%. A converting method comprises a step of putting steel scraps and hot metal in a converter and blowing them first, a step of tapping the hot metal from the converter and completely removing the slag, and a step of inserting the slag-removed hot metal in the converter and blowing it secondly. A method for manufacturing converter slag with low concentration of phosphorus oxides comprises a step of controlling the temperature of the hot metal to 1350°C or below during the first blowing, and a step of putting in quicklime during the first blowing to make the basicity of the slag to 1.5~2.0.

摘要翻译： 提供了一种制造低浓度氧化磷的转炉炉渣的方法，以确保足够的脱磷效果，通过将低于残留在铁水中的磷少于20％的磷还原成小于1％的磷氧化物。 A转化方法包括将钢屑和热金属放入转炉中并首先吹入的步骤，从转炉中分离出铁水并完全除去炉渣的步骤，以及将除渣的铁水插入到炉渣中的步骤 转换器和二次吹。 制造低浓度磷氧化物的转炉炉渣的方法包括在第一次吹制期间将铁水温度控制在1350℃以下的步骤，以及在第一次吹制时投入生石灰的步骤， 炉渣为1.5〜2.0。