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公开(公告)号：US12054795B2
公开(公告)日：2024-08-06
申请号：US18284415
申请日：2022-11-29
Applicant: SHANDONG UNIVERSITY , QINGDAO DANENG ENVIRONMENTAL PROTECTION EQUIPMENT CO., LTD. , QINGDA LOW CARBON GREEN HYDROGEN INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE (QINGDAO) CO., LTD.
Inventor： Jingcai Chang , Yong Wang , Chunyuan Ma , Lianhai Zhang , Shusheng Li , Rui Wang , Jinglan Hong , Jiahao Zhang
CPC classification number: C21B3/08 , C21B2200/00 , C21B2400/062 , G01N2001/002
Abstract: A system and method deliver fluidized powder based on flue gas carrying waste slag and instant cooling steel slag. A first flue gas pipeline receives pressurized CO2-rich flue gas and in fluid communication with a fluidization air pipeline, a pressurization air pipeline and a supplementary air pipeline respectively and through them enters an upper discharge bin; a second flue gas pipeline receives the pressurized CO2-rich flue gas and in fluid communication with a gas-gas mixer, a dense phase discharge guide pipe first end extends into the upper discharge bin and receives high-pressure dense phase gas-powder flow of CO2-rich flue gas, and a dense phase discharge guide pipe second end is connected to the gas-gas mixer; a variable-pitch twin screw sealed conveyor discharge end extends into an upper discharge bin internal space, and is provided with an upwardly inclined gas-blocking segment.
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2.发明申请公开(公告)号：US20180087120A1
公开(公告)日：2018-03-29
申请号：US15716582
申请日：2017-09-27
Inventor： Tao Qi , Lingyun Yi , Desheng Chen , Lina Wang , Hongxin Zhao , Yahui Liu , Weijing Wang , Hongdong Yu
CPC classification number: C21B13/0006 , C21B3/02 , C21B11/08 , C21B13/0013 , C21B13/006 , C21B13/10 , C21B2100/42 , C21B2100/44 , C21B2100/66 , C21B2200/00 , F27D3/16 , F27D2003/164
Abstract: The present invention relates to method and apparatus for treating iron-contained raw material using bath smelting furnace. An iron-contained raw material is mixed with a reducing agent. The mixture is added into a bath smelting furnace. The enriched oxygen is blown into the bath. The smelt is conducted at a temperature of 1200-1600° C. Compared with the traditional process of “sintering/pellet-blast furnace smelting” or “rotary furnace reduction-electrical furnace smelting separation”, the present invention has the remarkable advantages of short process, strong raw material adaptability, high product quality, low energy consumption, low pollution, etc. The present invention provides a new technology direction for effectively and comprehensively utilizing the iron-contained resource and has a wide application prospect.
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公开(公告)号：US09695492B2
公开(公告)日：2017-07-04
申请号：US14291701
申请日：2014-05-30
Applicant: Vincent Chevrier
Inventor： Vincent Chevrier
IPC: C21C5/52 , C21C7/064 , C22C1/06 , C22C1/02 , C22C27/06 , C22B34/32 , C21B13/00 , C21B13/10 , C21B13/14
CPC classification number: C22C27/06 , C21B13/006 , C21B13/105 , C21B13/143 , C21B2200/00 , C21C5/5229 , C21C5/5264 , C21C7/064 , C22B34/32 , C22C1/02 , C22C1/06 , Y02P10/212
Abstract: A method for producing a high purity high carbon molten chrome product from chrome and carbon bearing material, said method comprising the steps of: (a) continuously introducing chrome compacts directly into an electric melter; (b) heating and melting the chrome compacts in the electric melter at a temperature of between about 1300° C. to about 1700° C. to form high carbon molten chrome; (c) preventing oxidation of the high carbon molten chrome via minimization of the ingress of oxygen containing gas in said heating step; (d) carburizing the high carbon molten chrome to form high carbon molten metallized chrome; (e) purifying the high carbon molten metallized chrome by reducing silicon oxides to silicon and desulfurizing the high carbon molten metallized chrome to produce the high purity high carbon molten chrome product; and (f) discharging the high purity high carbon molten chrome product from the electric melter.
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4.发明申请公开(公告)号：US20170051369A1
公开(公告)日：2017-02-23
申请号：US15347645
申请日：2016-11-09
Applicant: ASTEC IRIE CO., LTD.
Inventor： Kosuke YAMASHITA , Nobuo KUSAKABE , Saburou SATOU , Gouta KAWAMURA , Hiromichi TAKESUE
CPC classification number: C21C5/38 , C21B5/00 , C21B2100/00 , C21B2200/00 , C21C5/56 , C21C7/0037 , C21C7/068 , C21C2200/00 , C22B1/242 , C22B7/02 , Y02P10/216
Abstract: A method for recycling processing of dust generated in a converter furnace, includes: crushing and drying a cake formed by adding a binder to a slurry containing iron powder-containing dust that is generated at the time of converter blowing and wet-collected to produce a mixed slurry and subjecting the produced mixed slurry to a dehydration treatment in a filter press; accumulating the cake in an accumulation tank; and charging the cake into a converter furnace 10, the crushed product in the accumulation tank 25 is kept at a temperature of less than 90° C. by forcibly passing air into the accumulation tank 25 and charged into a converter furnace according to the converter operation.
Abstract translation: 一种转炉中产生的粉尘的再循环处理方法，其特征在于，将通过在包含含铁粉尘的浆料中添加粘合剂而形成的饼状物粉碎并干燥，所述粉末在转炉吹制时产生并进行湿式收集， 混合浆料，并将生成的混合浆料在压滤机中进行脱水处理; 将蛋糕堆积在积聚罐中; 并将滤饼装入转炉10中，蓄积罐25中的粉碎产品通过强制地将空气通入蓄积槽25中而保持在低于90℃的温度，并根据转化器操作装入转炉炉 。
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5.发明申请公开(公告)号：US20150344363A1
公开(公告)日：2015-12-03
申请号：US14655065
申请日：2013-12-24
Applicant: SACHTLEBEN CHEMIE GMBH
Inventor： Djamschid AMIRZADEH-ASL
IPC: C04B5/00 , B01J21/06 , B01J20/02 , C05D9/00 , C08L95/00 , C08K3/00 , C09D7/12 , F27D3/00 , C04B18/02
CPC classification number: C04B5/00 , B01J20/0211 , B01J21/063 , C04B7/24 , C04B18/021 , C04B28/02 , C04B40/0039 , C04B2111/28 , C04B2111/72 , C05D9/00 , C08K3/013 , C08L95/00 , C08L2555/52 , C09D7/62 , C21B3/04 , C21B7/06 , C21B2200/00 , C21B2400/028 , F27D3/0033 , Y02P10/216 , Y02P40/145 , Y02W30/542 , Y02W30/94 , C04B14/305 , C04B18/141 , C04B20/0076
Abstract: The invention concerns a titanium-containing aggregate obtainable by mixing and/or treating residues from the manufacture of titanium dioxide which are obtained during the manufacture of titanium dioxide using the sulphate and/or chloride process with basic slags from the manufacture of metals, a method for its manufacture and its use in metallurgical processes, as well as its use as an aggregate and/or filler for concrete, cement, asphalt, refractory materials, repair compounds and sizes.
Abstract translation: 本发明涉及通过混合和/或处理二氧化钛制造中制备二氧化钛的残留物而获得的含钛骨料，其使用硫酸盐和/或氯化物工艺制备二氧化钛，其中碱金属渣来自金属制造，方法 用于其制造和在冶金工艺中的使用，以及其作为混凝土，水泥，沥青，耐火材料，修复化合物和尺寸的骨料和/或填料的用途。
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Patent Agency Ranking
公开(公告)号：US08679222B2
公开(公告)日：2014-03-25
申请号：US13262614
申请日：2010-03-26
Applicant: Kin Onn Low
Inventor： Kin Onn Low
CPC classification number: C21B13/10 , C21B13/0053 , C21B13/0066 , C21B13/0086 , C21B2200/00 , Y02P10/212
Abstract: The process for producing the sponge iron includes the steps of preparing a sandwich of at least two layers wherein the at least two layers includes a first layer (10) of iron oxide source which content is carbon free or comprises of only self-contaminant carbon or carbonaceous and second layer (12) is a mixture of iron oxide source and carbon source and subjecting the sandwich of at least two layers to a pyrolysis process in a non-oxidative environment at temperature between 950° C. to 1900° C. for a period between 10 minutes to 36 hours. The carbon source in the second layer (12) is equal to or more than stoichiometric weight of carbon according to a predominant reaction. The non-oxidative pyrolysis occurs in a reactor. The sandwich of two layers is placed in a moving carrier (16) such as tray to accommodate the sandwich of two layers in the reactor.
Abstract translation: 生产海绵铁的方法包括制备至少两层的夹层的步骤，其中至少两层包括氧化铁源的第一层（10），其含量不含碳或只包含自身污染物的碳或 碳质和第二层（12）是氧化铁源和碳源的混合物，并且在950℃至1900℃之间的温度下，在非氧化性环境中对至少两层的夹层进行热解过程，以获得 时间为10分钟至36小时。 根据主要反应，第二层（12）中的碳源等于或大于碳的化学计量重量。 非氧化热解发生在反应器中。 将两层的夹层放置在诸如托盘的移动载体（16）中以在反应器中容纳两层的三明治。
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公开(公告)号：US20230272495A1
公开(公告)日：2023-08-31
申请号：US18018351
申请日：2021-07-23
Applicant: PAUL WURTH S.A.
Inventor： Jan KRULL , Cristiano CASTAGNOLA , Stefano MAGNANI
IPC: C21B13/00
CPC classification number: C21B13/0073 , C21B2100/22 , C21B2100/26 , C21B2100/282 , C21B2200/00
Abstract: A method of operating a metallurgic plant for producing iron products includes the following steps, wherein the metallurgic plant includes a direct reduction plant and an ironmaking plant, the metallurgic plant:
feeding an iron ore charge into the direct reduction plant to produce direct reduced iron products,
operating the ironmaking plant to produce pig iron, wherein biochar is introduced into the ironmaking plant as reducing agent, and whereby the ironmaking plant generates offgas containing CO and CO2, and treating offgas from the ironmaking plant in a hydrogen enrichment unit to form a hydrogen-rich stream and a CO2-rich stream. The hydrogen-rich stream is fed directly or indirectly to the direct reduction plant. The CO2-rich stream is converted to be valorized in the direct reduction plant.
A corresponding metallurgic plant is also related.-
公开(公告)号：US20170247772A1
公开(公告)日：2017-08-31
申请号：US15509928
申请日：2015-09-25
Applicant: AquaBlok, Ltd.
Inventor： John H. Hull
CPC classification number: C21B3/02 , C21B5/023 , C21B2200/00 , C21C7/0025 , C21C7/0037 , C21C2200/00 , C22B1/243 , C22B1/248 , Y02P10/214 , Y02P10/216
Abstract: Composite particles are used in combination with ore particles in an ore-refining or purification process, such as in a steel- or iron-making process. The composite particles comprise a core, which may be an aggregate of limestone, dolomite, or another ore particle. The core is surrounded by a coating layer of a metal dust and a binder. The metal dust may be iron oxide dust, which, along with limestone, is prevalent in the iron smelting process anyway. In this way, the composite particles help to recycle otherwise wasted and hazardous iron dust. The binder may be mineral clay such as bentonite, montmorillonite or kaolinite, and may comprise about 2-10% by weight of the particle.
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公开(公告)号：US09376732B2
公开(公告)日：2016-06-28
申请号：US14480189
申请日：2014-09-08
Applicant: Empire Technology Development LLC
Inventor： Ezekiel Kruglick
IPC: C22B7/00 , C22B1/02 , C22B19/14 , C22B19/34 , F27D15/00 , F27D15/02 , F27D19/00 , B03C3/019 , C22B19/16 , B01D49/00 , B01D45/02 , C22B7/02 , F27D11/06
CPC classification number: C22B7/001 , B01D45/02 , B01D49/00 , B03C3/019 , C21B2200/00 , C22B1/02 , C22B7/02 , C22B19/14 , C22B19/16 , C22B19/34 , F27D11/06 , F27D15/00 , F27D15/02 , F27D19/00 , F27D2019/0003 , Y02P10/212
Abstract: The present technology provides an illustrative apparatus for recycling electric arc furnace (EAF) dust and method of use related to the same. The apparatus has a heat controlling region coupled to a separation volume and includes at least one magnet and a cooling region. The heating controlling region operates at a temperature sufficient to transform at least some of the EAF dust into a mixture of gaseous zinc and one or more additional metals. The magnet separates the iron-rich material from the mixture of gaseous zinc and one or more additional metals and the cooling region condenses the gaseous zinc.
Abstract translation: 本技术提供了一种用于回收电弧炉（EAF）粉尘和与之相关的使用方法的说明性设备。 该装置具有耦合到分离容积并包括至少一个磁体和冷却区域的热控制区域。 加热控制区域的操作温度足以将至少一些EAF粉尘转化成气态锌和一种或多种另外的金属的混合物。 磁体将富含铁的材料与气态锌和一种或多种另外的金属的混合物分离，并且冷却区冷凝气态锌。
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公开(公告)号：US20130042722A1
公开(公告)日：2013-02-21
申请号：US13386095
申请日：2011-08-16
Applicant: Ezekiel Kruglick
Inventor： Ezekiel Kruglick
CPC classification number: C22B7/001 , B01D45/02 , B01D49/00 , B03C3/019 , C21B2200/00 , C22B1/02 , C22B7/02 , C22B19/14 , C22B19/16 , C22B19/34 , F27D11/06 , F27D15/00 , F27D15/02 , F27D19/00 , F27D2019/0003 , Y02P10/212
Abstract: The present technology provides an illustrative apparatus for recycle electric arc furnace (EAF) dust and method of use related to the same. The apparatus has a heat controlling region coupled to a separation volume and includes at least one magnet and a cooling region. The heating controlling region operates at a temperature sufficient to transform at least some of the EAF dust into a mixture of gaseous zinc and one or more additional metals. The magnet separates the iron-rich material from the mixture of gaseous zinc and one or more additional metals and the cooling region condenses the gaseous zinc.
Abstract translation: 本技术提供了一种用于回收电弧炉（EAF）粉尘和与之相关的使用方法的说明性设备。 该装置具有耦合到分离容积并包括至少一个磁体和冷却区域的热控制区域。 加热控制区域的操作温度足以将至少一些EAF粉尘转化成气态锌和一种或多种另外的金属的混合物。 磁体将富含铁的材料与气态锌和一种或多种另外的金属的混合物分离，并且冷却区冷凝气态锌。
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