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1. 发明授权

US11898797B2 Electric furnace 有权
公开(公告)号：US11898797B2
公开(公告)日：2024-02-13
申请号：US16468615
申请日：2017-11-10
申请人： NIPPON STEEL CORPORATION
发明人： Toshiya Harada , Takashi Arai
IPC分类号： F27B3/10 , F27B3/08 , F27B3/04 , F27B3/06 , F27B3/18 , F27B3/12
CPC分类号： F27B3/105 , F27B3/04 , F27B3/06 , F27B3/065 , F27B3/08 , F27B3/085 , F27B3/186 , F27B2003/125
摘要： The present invention provides an electric furnace including: a furnace body that includes an electrode; and a slag holding furnace that is configured to hold molten slag in a molten state and is capable of pouring the molten slag into the furnace body when tilted, in which the furnace body includes a cylindrical furnace wall, a furnace cover that is provided at an upper end of the furnace wall, a furnace bottom that is provided at a lower end of the furnace wall and includes a deep bottom portion and a shallow bottom portion as a region having a height of 150 mm to 500 mm from a deepest point of the deep bottom portion, and a slag pouring port that is provided at the furnace cover and through which the molten slag is poured from the slag holding furnace, the slag pouring port overlaps the shallow bottom portion in a plan view, and the area ratio of the shallow bottom portion to the furnace bottom in a plan view is 5% to 40%.

2. 发明申请

US20230023633A1 EXPANDABLE SILICA PARTICLES AND METHODS FOR MAKING AND USING THE SAME 有权
公开(公告)号：US20230023633A1
公开(公告)日：2023-01-26
申请号：US17896412
申请日：2022-08-26
申请人： VALUNOR AG
发明人： Finn Erik SOLVANG , Norman Blank
IPC分类号： C03C11/00 , F27B3/06 , C03B19/10
摘要： The present disclosure concerns expandable silica particles having a coating comprising talc powder and kaolin powder provided on the outer surface of the expandable silica particle and expandable and expanded silica particles comprising silica fume and/or ultrafine quartz silica sand beneath the surface of the particles. Methods for producing expandable and expanded silica particles are disclosed, including a method using a vibration plate and a furnace having a vibration plate for carrying out that method. The expanded silica particles have high compressive strength, substantially uniform cell size and distribution, low water absorption, and low porosity on the outer surface. They are useful as a filler in matrix materials, like concrete or epoxy, as insulation material with various binder materials, and as water filtration medium.

3. 发明授权

US09562273B2 Tilting converter 有权
标题翻译：倾斜转换器
公开(公告)号：US09562273B2
公开(公告)日：2017-02-07
申请号：US14155121
申请日：2014-01-14
申请人： Danieli & C. Officine Meccaniche S.P.A.
发明人： Alfredo Poloni
IPC分类号： C21C5/50 , C21C5/46 , F27B3/06 , F27B7/20 , F27B14/02
CPC分类号： C21C5/50 , C21C5/4633 , F27B3/065 , F27B7/2083 , F27B14/02
摘要： A tilting converter comprising a container (2), defining a first longitudinal axis X, having a bottom (2′); a support ring (3), coaxial to the container (2) and distanced from said container, provided with two diametrically opposite supporting pins (6), defining a second axis Y orthogonal to the first axis X, adapted to allow a rotation of the converter about said second axis Y; a suspension system, connecting said container (2) to said support ring (3), comprising groups (12) of first suspension devices (7), said groups (12) being arranged substantially equidistant to each other along a cylindrical side surface coaxial to the first axis X, in a position between the support ring (3) and the bottom (2′); each of said first suspension devices (7) being provided with a plurality of longitudinal elastic elements, each longitudinal elastic element being arranged alongside the next so as to define a laying plane, and a gap (15, 15′) is provided between one longitudinal elastic element and the next.
摘要翻译：一种倾斜转换器，包括限定具有底部（2'）的第一纵向轴线X的容器（2）; 与所述容器（2）同轴并与所述容器隔开的支撑环（3），设置有两个直径相对的支撑销（6），所述支撑环限定与所述第一轴线X正交的第二轴线Y，转换器绕所述第二轴线Y; 将所述容器（2）连接到所述支撑环（3）的悬挂系统，包括第一悬挂装置（7）的组（12），所述组（12）沿着与所述支撑环（3）同轴的圆柱形侧表面彼此基本等距第一轴线X处于支撑环（3）和底部（2'）之间的位置; 每个所述第一悬挂装置（7）设置有多个纵向弹性元件，每个纵向弹性元件沿着下一个旁边布置以限定铺设平面，并且在一个纵向弹性元件之间设置间隙（15,15'），弹性元素和下一个。

4. 发明申请

US20160250682A1 METAL FORMING APPARATUS 有权
标题翻译：金属成型设备
公开(公告)号：US20160250682A1
公开(公告)日：2016-09-01
申请号：US15029110
申请日：2014-09-30
申请人： BYD COMPANY LIMITED
发明人： QING GONG , SHUMING ZHAO , YANAN WANG , QIUHUI CHEN , XIAOHUA WANG , LIUPING TANG
IPC分类号： B22D17/10 , F27B14/06 , F27D11/10 , F27B14/14 , F27D1/12 , F27D7/06 , F27B3/24 , F27B3/08 , F27B3/06 , B22D17/20 , B22D17/14 , B22D27/15 , F27D3/12 , B22D17/32 , F27D19/00 , F27D21/00 , F27B14/04
CPC分类号： B22D17/10 , B22D17/14 , B22D17/2023 , B22D17/32 , B22D27/15 , F27B3/06 , F27B3/085 , F27B3/24 , F27B14/04 , F27B14/06 , F27B14/14 , F27B2014/002 , F27B2014/045 , F27B2014/068 , F27B2014/0837 , F27B2014/0887 , F27D1/12 , F27D3/12 , F27D7/06 , F27D11/10 , F27D19/00 , F27D21/0035 , F27D2007/066
摘要： A metal forming apparatus includes a smelting device, a molding device, an injection device and a vacuumizing device. The smelting device defines a smelting chamber, and includes a rotatable crucible and a heating unit both disposed within the smelting chamber. The molding device defines a molding chamber sealedly communicated with the smelting chamber. The injection device includes a charging barrel assembly sealedly disposed at a joint between the molding device and the smelting device and an injection unit sealedly connected with the smelting device. The vacuumizing device is sealedly connected with the smelting device and the molding device respectively so as to vacuumize the smelting chamber and the molding chamber.
摘要翻译：金属成形装置包括熔炼装置，成型装置，注射装置和抽真空装置。冶炼装置限定了冶炼室，并且包括可旋转的坩埚和设置在冶炼室内的加热单元。模制装置限定了与冶炼室密封连通的模制室。注射装置包括密封地设置在模制装置和冶炼装置之间的接头处的充注筒组件和与熔炼装置密封连接的注射单元。抽气装置分别与冶炼装置和成型装置密封连接，以使熔化室和模制室真空。

5. 发明申请

US20160123664A1 METHOD OF OPERATING ELECTRIC ARC FURNACE 审中-公开
标题翻译：操作电弧炉的方法
公开(公告)号：US20160123664A1
公开(公告)日：2016-05-05
申请号：US14930775
申请日：2015-11-03
申请人： DAIDO STEEL CO., LTD.
发明人： Noriyuki TOMITA , Yoshikazu TANAKA , Akihiro NAGATANI , Masato OGAWA , Kunio MATSUO
IPC分类号： F27B3/08 , F27D11/10 , F27B3/06 , F27D3/15
CPC分类号： F27B3/085 , F27B3/06 , F27B3/205 , F27D3/1518 , F27D11/10
摘要： The present invention relates to a method of operating an electric arc furnace containing (a) a furnace shell having a tapping hole and/or a slag door, (b) a furnace roof having a plurality of electrodes provided so as to face downwards, and (c) a rotating apparatus that rotates the furnace shell around a vertical axis relative to the electrodes, the method contains a rotating step of rotating the furnace shell relative to the electrodes during melting of a metal material, and a holding step of stopping the rotation when any one of the plurality of electrodes reaches a holding position that is previously set close to the tapping hole or the slag door, and holding the furnace shell at the holding position.
摘要翻译：本发明涉及一种操作电弧炉的方法，该电弧炉包括（a）具有出钢孔和/或炉渣门的炉壳，（b）具有多个设置成朝下的电极的炉顶，以及（c）使炉壳相对于电极围绕垂直轴旋转的旋转装置，该方法包括在金属材料熔化期间使炉壳相对于电极旋转的旋转步骤，以及停止旋转的保持步骤当多个电极中的任何一个达到预先设置在接近漏斗孔或炉渣门的保持位置，并将炉壳保持在保持位置时。

6. 发明授权

US06890479B2 System and method for steel making 有权
标题翻译：制钢系统及方法
公开(公告)号：US06890479B2
公开(公告)日：2005-05-10
申请号：US10238971
申请日：2002-09-11
申请人： Richard J. Manasek , David P. Kincheloe
发明人： Richard J. Manasek , David P. Kincheloe
IPC分类号： F27B3/06 , F27D1/12 , F27D9/00 , F27D17/00 , C21B7/16
CPC分类号： F27D1/12 , F27B3/065 , F27D9/00 , F27D17/003 , F27D2009/0013 , F27D2009/0016 , F27D2009/0021
摘要： A metallurgical furnace, which includes a furnace shell, an exhaust system, and a gas cleaning system, further includes a plurality of improved pipes and fume ducts throughout to increase operational life and productivity. The pipes and fumes ducts are comprised of an aluminum-bronze alloy which provides enhanced properties over prior art materials including thermal conductivity, modulous of elasticity and hardness. The use of the alloy also minimizes maintenance requirements of the pipes and fume ducts, thereby extending their operational life. In operation, gases formed from smelting or refining are evacuated from the furnace shell through the exhaust system into the gas cleaning system. The gases, as well as the system, are water cooled by way of the plurality of pipes displaced throughout.
摘要翻译：包括炉壳，排气系统和气体清洁系统的冶金炉还包括多个改进的管道和通风管，以增加操作寿命和生产率。管道和烟气管道由铝 - 青铜合金组成，与现有技术材料相比，其具有导热性，弹性和硬度变化的特性。使用合金还可以最大限度地减少管道和烟道的维护需求，从而延长其使用寿命。在操作中，通过冶炼或精炼形成的气体通过排气系统从炉壳排出到气体清洁系统中。气体以及系统通过整个排列的多个管道进行水冷却。

7. 发明授权

US06868896B2 Method and apparatus for melting titanium using a combination of plasma torches and direct arc electrodes 有权
标题翻译：使用等离子体炬和直接电弧电极的组合来熔化钛的方法和设备
公开(公告)号：US06868896B2
公开(公告)日：2005-03-22
申请号：US10251030
申请日：2002-09-20
申请人： Edward Scott Jackson , David O. Warren
发明人： Edward Scott Jackson , David O. Warren
IPC分类号： B22D11/11 , C22B9/22 , C22B34/12 , F27B3/04 , F27B3/06 , F27B3/08 , F27B3/18 , F27B3/19 , F27B3/20 , F27B14/04 , F27B14/06 , F27B14/08 , F27D3/00 , F27D3/06 , F27D3/10 , B22D27/02
CPC分类号： B22D11/001 , B22D11/041 , B22D11/11 , B22D11/116 , C22B9/226 , C22B34/1295 , F27B3/04 , F27B3/065 , F27B3/085 , F27B3/18 , F27B3/19 , F27B3/20 , F27B14/04 , F27B14/06 , F27B14/0806 , F27D3/0025 , F27D3/0033 , F27D3/06 , F27D3/10
摘要： A method and apparatus for optimizing melting of titanium for processing into ingots or end products. The apparatus provides a main hearth, a plurality of optional refining hearths, and a plurality of casting molds or direct molds whereby direct arc electrodes melt the titanium in the main hearth while plasma torches melt the titanium in the refining chambers and/or adjacent the molds. Each of the direct arc electrodes and plasma torches is extendable and retractable into the melting environment and moveable in a circular pivoting or side to side linear motion.
摘要翻译：一种优化用于加工成锭或最终产品的钛的熔化的方法和装置。该设备提供主炉底，多个可选的精炼炉床，以及多个铸模或直接铸模，其中直接电弧电极熔化炉床中的钛，而等离子体炬将精炼室中的钛和/或邻近的模具熔化。每个直接电弧电极和等离子体炬都可以伸缩并进入熔化环境，并能够以圆形的摆动或侧向线性运动运动。

8. 发明授权

US6136068A Arc furnace fume collection method 有权
标题翻译：电弧炉烟气采集方法
公开(公告)号：US6136068A
公开(公告)日：2000-10-24
申请号：US255156
申请日：1999-02-22
申请人： Craig L. Peters
发明人： Craig L. Peters
IPC分类号： F27B3/06 , F27B3/08 , F27B3/28 , F27D7/04 , F27D17/00 , B01D29/66
CPC分类号： F27D17/003 , F27B3/085 , F27B3/28 , F27B3/065 , F27D17/008 , F27D2007/045
摘要： The present invention provides a system and method for collecting fumes from an arc furnace of the type typically used in metal foundries. The system provides an electrode hood with extended sides for improved collection of fumes from the vicinity of the electrodes. It also provides a movable spout hood for collection of fumes when metal is tapped. A combination of a tilting manifold and stationary duct are used to maintain a path for collecting fumes throughout the entire range of motion of the furnace. The stationary duct has a group of dampers that open and close as the furnace tilts. Variable position dampers may be provided at the electrode hood and furnace door. In the bag house, there is a dust containment assembly to limit the movement of the collected dust. A variable speed fan may be used with the system. One method of the invention involves determining the pressure differential upstream and downstream of the filter bag, determining the fan speed, and closing a damper downstream of the filter to clean the filter bag when the determined values for the pressure differential and fan speed match previously set values. The entire system may be controlled by a programmable logic element to maximize efficiency. Another method involves the steps of adjusting the electrode hood damper, spout hood damper and door hood damper in response to furnace conditions.
摘要翻译：本发明提供一种用于从通常用于金属铸造厂的电弧炉中收集烟雾的系统和方法。该系统提供具有延伸侧面的电极罩，用于改善从电极附近收集的烟雾。它还提供一个可移动的喷口，用于在金属被攻丝时收集烟雾。倾斜歧管和固定管道的组合被用于在炉的运动的整个运动范围内保持用于收集烟雾的路径。固定管道具有一组在炉子倾斜时打开和关闭的阻尼器。可以在电极罩和炉门设置可变位置阻尼器。在袋子的房子里，有一个集尘装置来限制收集的灰尘的运动。系统可以使用变速风扇。本发明的一种方法包括确定过滤袋上游和下游的压力差，确定风扇速度，以及当过滤器的压力差和风扇速度的确定值匹配先前设定时，关闭过滤器下游的阻尼器以清洁过滤袋价值观。整个系统可以由可编程逻辑元件控制以最大化效率。另一种方法包括响应于炉条件调整电极罩阻尼器，喷嘴罩阻尼器和门罩阻尼器的步骤。

9. 发明授权

US5888458A Melting furnace of metals and melting method thereof 失效
标题翻译：金属熔化炉及其熔化方法
公开(公告)号：US5888458A
公开(公告)日：1999-03-30
申请号：US817045
申请日：1997-04-04
申请人： Toshio Suwa , Nobuaki Kobayashi , Hiroshi Igarashi , Kimio Iino , Yoshiteru Kikuchi , Yasuyuki Yamamoto
发明人： Toshio Suwa , Nobuaki Kobayashi , Hiroshi Igarashi , Kimio Iino , Yoshiteru Kikuchi , Yasuyuki Yamamoto
IPC分类号： C21C5/56 , C21C7/00 , C22B15/00 , C22B21/00 , F27B1/02 , F27B3/06 , F27B3/18 , F27B3/20 , F27B3/22 , F27D13/00
CPC分类号： C22B21/0084 , C21C5/565 , C21C5/567 , C22B15/0045 , C22B15/0056 , F27B1/025 , F27B3/065 , F27B3/18 , F27B3/205 , F27B3/225 , F27D13/002 , C21C2007/0093 , Y02P10/216 , Y02P10/22 , Y10S266/90
摘要： Disclosed is a melting furnace of metals and melting method thereof, which can control the rate at which a metallic raw material is introduced from a preheating section to a melting section within an optimum range and which can achieve efficient melting of the metallic raw material using oxygen burners only. The metal melting furnace has a melting section (22) provided with oxygen burners (21) and a preheating section (23) for preheating the metallic raw material located above the melting section, with a reduced section (24), having an inner diameter smaller than those of the melting section (22) and of the preheating section (23), being located between the melting section (22) and the preheating section (23).
摘要翻译： PCT No.PCT / JP96 / 02228 Sec。 371日期1997年04月4日 102（e）日期1997年4月4日PCT PCT 1996年8月7日PCT公布。出版物WO97 / 06394 日期1997年2月20日公开了一种金属熔化炉及其熔融方法，其可以控制将金属原料从预热段引入熔化区域的最佳范围内的速率，并且可以实现仅使用氧气燃烧器的金属原料。金属熔化炉具有设置有氧燃烧器（21）的熔化部分（22）和用于预热位于熔化部分上方的金属原料的预热部分（23），其具有减小的部分（24），内径较小位于熔化部分（22）和预热部分（23）之间的熔化部分（22）和预热部分（23）。

10. 发明授权

US5738823A Meltdown apparatus 失效
标题翻译：熔化装置
公开(公告)号：US5738823A
公开(公告)日：1998-04-14
申请号：US681477
申请日：1996-07-23
申请人： Goran Grimfjard , Erik Alfred Lassander , Gerhard Lempa , Sven-Einar Stenkvist
发明人： Goran Grimfjard , Erik Alfred Lassander , Gerhard Lempa , Sven-Einar Stenkvist
IPC分类号： C21C5/42 , C21C5/52 , C21C7/00 , F27B3/06 , F27B3/08 , F27B3/10 , F27B3/12 , F27B3/22 , F27D3/15 , F27D11/08 , F27D27/00 , F27D17/00 , C22B7/00
CPC分类号： F27D27/00 , C21C5/42 , C21C5/5229 , F27B3/12 , F27D3/1545 , C21C2007/0093 , C21C5/305 , F27B3/085 , F27B3/225 , Y02P10/216
摘要： To improve operation, particularly to allow more universal use, in which both liquid and solid crude metal, especially iron can be refined in only one reactor vessel, a reactor vessel (1) is of converter-like design with a relatively large space above a melt (7) and with slag (8) lying above said melt. For the removal of slag (8) via a closable slag channel (18'), the meltdown apparatus can be rotated about a center of rotation (20) through .+-.8.degree.. For the complete removal of the melt (7) via a closable melt channel (17') in the bottom region of the meltdown apparatus, the latter can be rotated about a center of rotation (19) through .+-.30.sup.. A magnetic coil (16) fed with direct current and arranged around the meltdown apparatus (1) serves for the magnetic damping of movements of melt (7) and/or slag (8) inside the meltdown apparatus. In the converter mode, a graphite electrode (5) used in the arc mode is replaced by a gas supply conduit, through which oxygen is then supplied under pressure.
摘要翻译：为了改进操作，特别是允许更普遍的使用，其中液体和固体粗金属，特别是铁只能在仅一个反应器容器中精制，反应器容器（1）是转炉式设计，具有相对较大的空间熔体（7）和位于所述熔体上方的炉渣（8）。为了通过可关闭的炉渣通道（18'）去除炉渣（8），熔化设备可绕旋转中心（20）至+/- 8°旋转。为了通过熔断装置的底部区域中的可封闭的熔体通道（17'）完全去除熔体（7），后者可绕旋转中心（19）至+/- 30旋转。供给直流电并布置在熔化装置（1）周围的电磁线圈（16）用于对熔化装置内的熔体（7）和/或炉渣（8）的运动进行磁阻尼。在转换器模式中，在电弧模式中使用的石墨电极（5）由供气管道代替，然后在压力下供给氧气。

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