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    • 1. 发明专利
    • Production method of iron and steel slag hydration solidification body block
    • 钢和钢渣水泥固化体块的生产方法
    • JP2014043093A
    • 2014-03-13
    • JP2013070843
    • 2013-03-29
    • Jfe Steel CorpJfeスチール株式会社
    • INOUE YOTAROTAKAHASHI KATSUNORIWATANABE KEIJIKUWAYAMA MICHIHIRO
    • B28B1/087B28B11/14C04B18/08C04B18/14C04B28/08
    • Y02W30/92Y02W30/94
    • PROBLEM TO BE SOLVED: To produce an iron and steel slag hydration solidification body block in which form accuracy is high in a manner that strength of the iron and steel slag hydration solidification body is not lowered, efficiently, and at an inexpensive price.SOLUTION: A production method of an iron and steel slag hydration solidification body block is a method in which the iron and steel slag hydration solidification body block is produced from a raw material including steelmaking slag and blast furnace slag fine powder as a main body by a slip form method. A mixture of the raw material and water is supplied into an oscillation mold through an inside of a slip form machine having an opening at an opposite side of a direction of movement and moving to a horizontal direction, the mixture is performed by continuous molding by the oscillation mold to be made a compact 2, the compact 2 is cut in a longer direction of the compact 2 having a spacing before curing of the compact 2, is cured to be made a molded block 1 after the cutting.
    • 要解决的问题:生产钢铁渣水化凝固体块,其形状精度高,钢铁渣水合凝固体的强度不会有效降低,价格便宜。解决方案: 钢铁渣水化凝固体块的制造方法是将钢铁渣水合凝固体块由包括炼钢渣和高炉矿渣微粉作为主体的原料以滑动形式生产的方法 方法。 将原料与水的混合物通过具有在移动方向的相反侧的开口的滑动成型机的内部供给到振动模具中,并向水平方向移动,通过连续成型 将振动模制成紧凑型2,在成形体2的固化前具有间隔的压块2的长度方向切割压块2,在切割后固化成为模制块1。
    • 2. 发明专利
    • Refractory lining structure of torpedo car
    • TORPEDO汽车的耐火内衬结构
    • JP2013181245A
    • 2013-09-12
    • JP2012047962
    • 2012-03-05
    • Jfe Steel CorpJfeスチール株式会社
    • MIYAMOTO YOKOKIYOTA SADAKIMIKUWAYAMA MICHIHIRO
    • C21C1/06B22D41/02F27D1/00
    • PROBLEM TO BE SOLVED: To provide a refractory lining structure of a torpedo car achieving both adiabaticity and corrosion resistance.SOLUTION: A refractory lining structure of a torpedo car is for receiving and holding molten iron tapped from a blast furnace, and performing dephosphorization treatment to the molten iron held, and includes, in order from the outer side of a furnace body of the torpedo car, an iron shell, a heat insulating material, a permanent refractory layer and a workpiece refractory layer. The thermal conductivity of the heat insulating material is 0.1 W/(m×K) or less, and the thermal conductivity of the workpiece refractory composing the workpiece refractory is 12 W/(m×K) or less. As the workpiece refractory, a shaped refractory with a carbon content of 10-12 mass% is used at a portion that comes in contact with the molten iron held and a shaped refractory with a carbon content of 8-10 mass% is used at a portion that comes in contact with the slug existing on the surface of the molten iron.
    • 要解决的问题:提供鱼雷车的耐火衬里结构,实现绝热性和耐腐蚀性。解决方案:鱼雷车的耐火衬里结构用于接收并保持从高炉中抽出的铁水,并进行脱磷处理 铁水保持,并且从鱼雷车的炉体的外侧依次包括铁壳,隔热材料,永久耐火层和工件耐火层。 绝热材料的导热率为0.1W /(m×K)以下,构成工件耐火材料的工件耐火材料的导热率为12W /(m×K)以下。 作为工件耐火材料,在与保持的铁水接触的部分使用碳含量为10〜12质量%的成形耐火材料,在碳含量为8〜10质量%的成形耐火材料中使用 与铁水表面上存在的渣块接触的部分。
    • 3. 发明专利
    • 凝固スラグ製造装置及び凝固スラグ製造方法
    • 装置和方法制造固化滑石
    • JP2015040638A
    • 2015-03-02
    • JP2013170102
    • 2013-08-20
    • Jfeスチール株式会社Jfe Steel Corp
    • DEN KEITATOFUSA HIROYUKIWATANABE KEIJIKUWAYAMA MICHIHIRO
    • F27D15/02B22D43/00F27D3/14
    • 【課題】気孔の少ない緻密な凝固スラグであって、その後の破砕により容易に所望の20mm程度の凝固スラグを得やすくて、かつ生産効率のよい凝固スラグ製造装置及び凝固スラグ製造方法を提供する。【解決手段】本発明に係る凝固スラグ製造装置1は、鋳型4は両面に溶融スラグ3が流し込まれる凹陥部4aが形成されており、複数の鋳型4を近接させて支持した状態で水平方向に周回移動させる周回移動機構7を備え、周回移動機構7は鋳型4が1周回する間に、流し込まれた溶融スラグ3を凹陥部4aに保持した状態で鋳型4を周回方向に移動させ溶融スラグ3を空冷して凝固させる空冷移動部9と、鋳型4を反転させて凝固スラグ18を排出する反転排出部11と、反転した鋳型4を反転した状態のままで移動させる移動部12とを備え、各鋳型4は周回毎に反転されて異なる面の凹陥部4aに溶融スラグ3が流し込まれることを特徴とするものである。【選択図】図1
    • 要解决的问题:提供一种凝固炉渣的制造装置和方法,其中凝固炉渣是致密的,孔隙较小,并且通过随后的压碎可以容易地获得约20mm的期望的固化炉渣,并且生产效率也优异 本发明的凝固渣的制造装置1的特征如下:模具4由凹部4a形成,熔融渣3被倒入两侧; 设置有周向运动机构7,用于水平地旋转和移动多个模具4,同时被紧密地支撑; 周向移动机构7包括用于使模具4沿旋转方向移动的风冷移动部件9,并且在浇注的熔渣3被保持在凹部4a中的状态下使熔融渣3进行空气冷却和固化,同时 模具4旋转一圈,用于使模具4反转并排出凝固渣18的反转喷射部11和用于使反模4反转的移动部12; 并且每个模具4每一回合一次,并且熔渣3被注入到不同面的凹部4a中。
    • 4. 发明专利
    • Method for manufacturing earthwork material
    • 制造地球物料的方法
    • JP2014172001A
    • 2014-09-22
    • JP2013048353
    • 2013-03-11
    • Jfe Steel CorpJfeスチール株式会社
    • TAKAHASHI KATSUNORIWATANABE KEIJIKUWAYAMA MICHIHIRO
    • B09B3/00C04B7/19G21F9/30
    • Y02P40/143
    • PROBLEM TO BE SOLVED: To inexpensively manufacture an earthwork material which effectively utilizes a burned residue such as a domestic waste as the stock, carries a physical aptitude as the earthwork material, suppresses the elution of harmful substances, and keeps a radiation dose abated when containing radioactive substances.SOLUTION: A burned residue containing an unburned matter is immersed in water, drained and air-dried, and this burned residue is mixed with a binder by adding a granular steel slag with a grain size of over 0.1 mm and to 9.5 mm or less to pelletize, and then solidified. An earthwork material can inexpensively manufactured which carries a physical aptitude as the earthwork material, suppresses the elution of harmful substances, and keeps a radiation dose abated when containing radioactive substances. Therefore, the burned residue can effectively be utilized as the earthwork material from an economical view while securing safety.
    • 要解决的问题:为了廉价地制造有效利用诸如生活垃圾的烧残渣作为原料的土方材料,承载作为土方材料的物理能力,抑制有害物质的洗脱,并且当含有 放射性物质。解决方案:将含有未燃烧物质的烧伤残渣浸入水中,排干并风干,通过加入粒径超过0.1 mm的颗粒状钢渣和9.5 mm的粒状钢渣将该烧焦残渣与粘合剂混合 或更少以造粒,然后固化。 一种能够廉价制造的土方材料,具有土质材料的身体素质,抑制有害物质的洗脱,并且在含有放射性物质时可以减轻辐射剂量。 因此,在保证安全性的同时,从经济角度考虑,燃烧后的残渣可以有效地用作土方材料。
    • 5. 发明专利
    • Method of separating phosphorus
    • 分离磷的方法
    • JP2013147382A
    • 2013-08-01
    • JP2012009174
    • 2012-01-19
    • Jfe Steel CorpJfeスチール株式会社Kurita Water Ind Ltd栗田工業株式会社
    • TAKAHASHI KATSUNORIWATANABE KEIJIKUWAYAMA MICHIHIROYAO YASUKOSUMITA ICHIROSEKIMOTO TOMOHIRO
    • C01B25/01C21C1/02F27D15/00
    • PROBLEM TO BE SOLVED: To provide a method capable of efficiently and economically separating phosphorus from a composite oxide which contains the phosphorus and contains iron and calcium at a relatively high concentration.SOLUTION: A composite oxide containing 10 mass% or more of CaO, 10 mass% or more of total Fe, and 10 mass% or more of POis brought into contact with 1-normal or more alkali metal hydroxide aqueous solution, and phosphorus in the composite oxide is extracted into the alkali metal hydroxide aqueous solution. Alternatively, a composite oxide containing 30 mass% or more of CaO, 10 mass% or more of total Fe, and 1-5 mass% of POwith CaO/SiO(mass ratio) being 2 or greater is brought into contact with 5-normal or more alkali metal hydroxide aqueous solution, and phosphorus in the composite oxide is extracted into the alkali metal hydroxide aqueous solution. From the alkali metal hydroxide aqueous solution in which the phosphorus is extracted, phosphate ions are separated and the phosphorus is recovered.
    • 要解决的问题:提供一种能够高效且经济地从含有磷并且含有较高浓度的铁和钙的复合氧化物中分离出磷的方法。溶液:含有10质量%以上的CaO,10 质量%以上的Fe,10质量%以上的POis与1价以上的碱金属氢氧化物水溶液接触,复合氧化物中的磷被提取到碱金属氢氧化物水溶液中。 或者,将含有30质量%以上的CaO,10质量%以上的Fe和1-5质量%的PO与CaO / SiO(质量比)为2以上的复合氧化物与5正常 或更多的碱金属氢氧化物水溶液,并且复合氧化物中的磷被提取到碱金属氢氧化物水溶液中。 从其中提取磷的碱金属氢氧化物水溶液中分离磷酸根离子并回收磷。
    • 6. 发明专利
    • 水和硬化体
    • 水化体系
    • JP2015027922A
    • 2015-02-12
    • JP2013157599
    • 2013-07-30
    • Jfeスチール株式会社Jfe Steel Corp
    • TAKAHASHI KATSUNORIWATANABE KEIJIKUWAYAMA MICHIHIRO
    • C04B28/08C04B18/08C04B18/14
    • Y02W30/92Y02W30/94
    • 【課題】体積安定性に優れ安定して所望の強度を確保できる水和硬化体を提供する。【解決手段】潜在水硬性を有するシリカ含有物質と、ポゾラン反応性を有するシリカ含有物質と、さらに1.5質量%以上の遊離CaOを含み微粉砕された製鋼スラグとを結合材として使用し、骨材と水とともに混練し成形、硬化させて水和硬化体とする。微粉砕された製鋼スラグは、潜在水硬性を有するシリカ含有物質100質量部に対し、20質量部以上100質量部未満、ポゾラン反応性を有するシリカ含有物質は、微粉砕された製鋼スラグ100質量部に対し、10質量部以上120質量部未満含有することが好ましい。【選択図】図1
    • 要解决的问题:提供在体积稳定性方面优异并且能够稳定地确保所需强度的水合固化体。溶液:通过使用潜水性含水物质,火山灰反应性物质提供水合固化体 二氧化硅的物质,作为粘合剂,含有至少1.5质量%游离CaO的细粉碎钢渣,并与骨料和水一起捏合,成型和固化这些成分。 理想的是,细粉碎的钢渣相对于100质量%的潜在水性二氧化硅的物质的比例为至少20点,小于100点,并且对于火山灰 - 反应性二氧化硅的物质相对于100微米的细粉碎钢渣为至少10点,小于120点。
    • 7. 发明专利
    • Method for reusing used tundish refractory
    • 重新使用土耳其耐火材料的方法
    • JP2009263742A
    • 2009-11-12
    • JP2008116880
    • 2008-04-28
    • Jfe Steel CorpJfeスチール株式会社
    • NIIDE TSUKASAKUWAYAMA MICHIHIRO
    • C21C5/36B09B3/00B09B5/00B22D11/10B22D41/02C21C1/02
    • Y02P10/212
    • PROBLEM TO BE SOLVED: To reuse a used refractory generated from a tundish in a continuous casting facility as a sub-raw material in a steelmaking refining process. SOLUTION: The method for reusing the used tundish refractory includes: defining Al 2 O 3 -SiO 2 based refractory as a work refractory 4; recovering the used refractory generated from the tundish 1 for continuous casting, covered with a coating layer 5 of MgO on the surface of the work refractory; crushing the used refractory into particles having ≤30 mm particle diameter; separating the crushed used refractory, by using a sieve, into the fine particles having ≤10 mm particle diameter and the rough particles having >10 mm to ≤30 mm particle diameter; and using the fine particles obtained by sieve-separation as a slag-making agent in the decarburize-refining of molten iron in a converter. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:在炼钢炼制过程中,将连续铸造设备中的中间包产生的二手耐火材料作为次原料重新使用。 解决方案:重复使用中间包耐火材料的方法包括:将作为耐火材料的Al 2 O -SiO 2 4; 回收中间包1生产的用于连续铸造的用过的耐火材料,在耐火材料表面上覆盖有MgO涂层5; 将使用过的耐火材料粉碎成粒径≤30毫米的颗粒; 通过使用筛子将破碎的二手耐火材料分离成具有≤10mm粒径的细颗粒和具有> 10mm至≤30mm粒径的粗颗粒; 并且在转炉中的铁水脱碳精炼中使用通过筛分分离得到的细颗粒作为造渣剂。 版权所有(C)2010,JPO&INPIT
    • 8. 发明专利
    • Gas-blowing tuyere
    • 气泡锅
    • JP2011026709A
    • 2011-02-10
    • JP2010216664
    • 2010-09-28
    • Jfe Steel CorpJfeスチール株式会社
    • HOSOHARA SEIJIKIYOTA SADAKIMIKISHIMOTO YASUOKUWAYAMA MICHIHIROKATO MAKOTO
    • C21C5/48C21C7/072F27D3/16
    • PROBLEM TO BE SOLVED: To provide a gas-blowing tuyere for blowing the gas into a refining vessel for refining high temperature molten metal in which even in the case of increasing the gas-blowing flow rate, the wearing speed of the tuyere can be restrained. SOLUTION: In the gas-blowing tuyere arranged in the refining vessel 9 for refining the molten metal and blowing the gas into the refining vessel, the tuyere 1 has the structure in which the tip-end part at the refining vessel inner side of the tuyere spouts the gas from a gap between a tubular part 5 and an axial center part 2 arranged at the inside of the tubular part, and has a wind box 7 where a gas introducing port 8 is set, at the opposite side to the refining vessel inner side of the tuyere, wherein the tubular part is made of a metal and the inner diameter of this tubular part is ≥40 mm. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供一种用于将气体吹入用于精炼高温熔融金属的精炼容器中的气体吹送风口,其中即使在增加气体吹送流量的情况下,风口的磨损速度 可以束缚 解决方案:在设置在精炼容器9中的用于精炼熔融金属并将气体吹入精炼容器的气吹风口中,风口1具有其中精炼容器内侧的前端部分 的风口从管状部分5和布置在管状部分的内侧的轴向中心部分2之间的间隙喷出气体,并且具有设置气体导入口8的风箱7,在该风箱7的与 所述管状部由金属制成,所述管状部的内径为≥40mm。 版权所有(C)2011,JPO&INPIT
    • 10. 发明专利
    • Method for treating sulfide-based copper-removed slag
    • 用于处理基于硫化物的铜去除SLAG的方法
    • JP2013142193A
    • 2013-07-22
    • JP2012004369
    • 2012-01-12
    • Jfe Steel CorpJfeスチール株式会社
    • INOUE YOTAROMIYAMOTO YOKOTAKAHASHI KATSUNORIWATANABE KEIJIKUWAYAMA MICHIHIRO
    • C21C7/00B09B3/00C04B5/00C22B1/02C22B7/04C22B15/00
    • Y02P10/212
    • PROBLEM TO BE SOLVED: To provide a method for treating sulfide-based copper-removed slag for selectively separating and recovering sodium, copper and iron from the sulfide-based copper-removed slag containing sodium, iron and sulfur as main components.SOLUTION: The method for treating sulfide-based copper-removed slag includes a heat treatment step in which the sulfide-based copper-removed slag is heat-treated at a temperature of 600°C or higher and 800°C or lower, a sodium separation step in which sodium contained in the copper-removed slag is eluted into an aqueous phase having pH of 5.0 or higher and then, the aqueous phase containing the sodium and a solid phase containing copper and iron are separated, and a copper separation step in which the copper contained in the solid phase is eluted into an aqueous phase having pH of 4.0±0.5 and then, the aqueous phase containing the copper and a solid phase containing the iron are separated.
    • 要解决的问题:提供一种处理硫化物铜去除炉渣的方法,用于以含有钠,铁和硫为主要成分的硫化物类除铜渣选择性分离和回收钠,铜和铁。解决方案: 用于处理硫化物铜去除渣的方法包括热处理步骤,其中将硫化物基铜去除的炉渣在600℃以上且800℃以下的温度下进行热处理, 将去除了铜的炉渣中含有的钠洗脱到pH5.0以上的水相中,然后分离含有钠和含有铜和铁的固相的水相和铜分离步骤,其中铜 固相中含有的水相被洗脱到pH为4.0±0.5的水相中,然后分离含有铜的水相和含有铁的固相。