Method and devices for regulating the flow rate and for slowing down non-ferromagnetic, electrically-conducting liquids and melts
    32.
    发明授权
    Method and devices for regulating the flow rate and for slowing down non-ferromagnetic, electrically-conducting liquids and melts 失效
    用于调节流速和减缓非铁磁导电液体和熔体的方法和装置

    公开(公告)号:US08696976B2

    公开(公告)日:2014-04-15

    申请号:US13057378

    申请日:2009-08-06

    Abstract: The invention relates to a method for regulating the flow rate and for slowing down non-ferromagnetic, electrically conducting liquids and melt streams through magnetic fields, in particular in the tapping of metallurgical containers such as blast furnaces and melt furnaces. The method is characterized in that the melt stream is routed in a closed routing element using at least one stationary magnetic field with a constant polarity, at least one stationary magnetic alternating field or using a multi-poled magnetic travelling field, in such a way that the magnetic field lines transversally penetrate the melt flow across the entire cross section thereof and such that a voltage is induced in the melt stream by the magnetic fields, there being eddy currents induced thereby in the melt stream that are disposed radially and axially when a stationary magnetic field of constant polarity is used and that are disposed axially when a stationary alternating magnetic field or electromagnetic travelling field is used, and that due to the interactions between the magnetic fields and the eddy currents forces are generated that can affect the flow rate of the melt stream.

    Abstract translation: 本发明涉及一种用于调节流速并减缓非铁磁性导电液体和通过磁场熔化流体的方法,特别是在诸如高炉和熔炉的冶金容器的攻丝中。 该方法的特征在于,使用至少一个具有恒定极性的固定磁场,至少一个固定磁场交替场或使用多极磁性行驶场,使熔融流在封闭的路由元件中被路由,使得 磁场线横穿其整个横截面的熔体流动,并且使得在熔体流中被磁场感应出电压,在熔体流中由此引起的涡流在径向和轴向设置,当固定 使用恒定极性的磁场,并且当使用固定的交变磁场或电磁行进场时轴向设置,并且由于磁场和涡流之间的相互作用产生的力可以产生,这可以影响 熔化流。

    Taphole mix
    33.
    发明授权
    Taphole mix 失效
    点孔混合

    公开(公告)号:US08163666B2

    公开(公告)日:2012-04-24

    申请号:US12446278

    申请日:2007-10-18

    Inventor: Yutaka Kitazawa

    Abstract: It is intended to provide a taphole mix capable of forming SiC bonds with minimum of an excess and a deficiency in components thereof, and excellent in drillability. A fine particle fraction having a particle diameter of 75 μm or less is comprised of three components consisting of a silicon nitride-based material, a carbon-based material, and roseki, or comprised of the three component, and one or more selected from the group consisting of an alumina-based material, a silicon carbide-based material, a rare-earth element oxide-based material, clay, a high-purity silica-based material containing SiO2 in an amount of 80 mass % or more, a boron compound-based material in an amount of less than 0.3 mass % with respect to 100 mass % of the silicon nitride-based material, and a metal powder in an amount of less than 10 mass % with respect to 100 mass % of the carbon-based material. Further, a total amount of 100 mass % of the three components in the fine particle range consists of 51 to 74 mass % of the silicon nitride-based material, 15 to 35 mass % of the carbon-based material, and 10 to 30 mass % of the roseki.

    Abstract translation: 旨在提供一种能够以最小的过量和不足的组分形成SiC键的出孔混合物,并且具有优异的可钻性。 粒径为75μm以下的微细粒子组成由三
    种成分由氮化硅系材料,碳类材料和玫瑰红组成的三种成分构成,或由三种成分组成, 由氧化铝基材料,碳化硅基材料,稀土元素氧化物基材料,粘土,含有80质量%以上的SiO 2的高纯度二氧化硅系材料组成的组,硼 相对于氮化硅系材料的100质量%,小于0.3质量%的化合物系材料,相对于碳质材料100质量%,小于10质量%的金属粉末, 基材料。 此外,微粒范围中的三种成分的100质量%的总量由氮化硅系材料的51〜74质量%,碳系材料的15〜35质量%,碳系材料的10〜30质量% 玫瑰花的百分比。

    High efficient method of slag scooping-up from liquid iron and a device for implementing said method
    36.
    发明申请
    High efficient method of slag scooping-up from liquid iron and a device for implementing said method 失效
    从铁水中扒渣的高效方法和实施所述方法的装置

    公开(公告)号:US20090293677A1

    公开(公告)日:2009-12-03

    申请号:US10582864

    申请日:2004-04-05

    Applicant: Fuchun Sheng

    Inventor: Fuchun Sheng

    CPC classification number: B22D43/007 C21B7/14 C21C5/4653 F27D3/1563

    Abstract: The present invention provides a method of high efficient slag scooping-up from liquid iron and a device for implementing said method. The two wings of slag rake mounted to the front end of cantilever descend side by side until beneath the surface of the liquid iron at a certain depth. The two rakes make swing movement respectively along the surface of liquid iron. When gradually moving close to each other in the course of swing movement, they get put together and clamp the solid slag. Then, driven by the cantilever, the two slag rakes which clamp the sold slag are brought to ascend until above the surface at a certain height. Finally they leave the space over the ladle and discharge the slag. The deslagging rate can reach over 90%. It just takes less than 3 minutes for the whole process of slagging-off. Additionally, the iron carried away in the process of slagging-off could be greatly reduced. The iron loss rate can be strictly controlled within 0.1%.

    Abstract translation: 本发明提供了一种从液态铁中高效除渣的方法以及用于实现所述方法的装置。 安装在悬臂前端的炉渣耙的两个翅膀并排下降到一定深度的液态铁表面下方。 两个耙子分别沿着液态铁的表面摆动。 在摆动过程中逐渐靠近彼此移动时,将它们放在一起并夹住固体渣。 然后,由悬臂驱动,夹住销售炉渣的两个炉渣耙在一定高度上升到表面上方。 最后,他们将空间留在钢包上,排出炉渣。 弃渣率可达90%以上。 整个淘汰过程只需不到3分钟。 此外,在除渣过程中携带的铁可能大大降低。 铁损率可以严格控制在0.1%以内。

    Thermal lance assembly
    37.
    发明授权
    Thermal lance assembly 有权
    热喷枪组件

    公开(公告)号:US07537723B2

    公开(公告)日:2009-05-26

    申请号:US11336006

    申请日:2006-01-20

    CPC classification number: C21B7/12 C21C5/4653 F27D3/1527

    Abstract: An improved thermal lance is made of a low carbon steel sheath having an internal bore and a thin cylindrical rod that is roll-formed from low carbon steel sheet. The rod being sized for conforming fit in the bore of the sheath and has a length dimension that is longer than the length of the sheath. The rod is inserted into the bore of the sheath and allowed to move axially within the sheath under propulsion of the pressurized oxygen to allow the rod to be burned at a rate independent of the burn rate of the sheath. A thermal lance assembly using the improved lance also includes a magnet located near the bottom of the lance housing to keep the lance from moving during routine handling and storage.

    Abstract translation: 改进的热喷枪由具有内孔的低碳钢护套和由低碳钢板卷成型的薄圆柱杆制成。 所述杆的尺寸适于在护套的孔中配合,并且具有长于护套长度的长度尺寸。 杆被插入护套的孔中并允许在加压氧的推进下在护套内轴向移动,以允许杆以与护套的燃烧速率无关的速率被燃烧。 使用改进的喷枪的热喷枪组件还包括位于喷枪壳体底部附近的磁体,以在常规处理和存储期间保持喷枪不移动。

    VORTEX INHIBITOR WITH SACRIFICIAL ROD
    38.
    发明申请
    VORTEX INHIBITOR WITH SACRIFICIAL ROD 审中-公开
    VORTEX抑制剂与SACRIFICIAL ROD

    公开(公告)号:US20080116233A1

    公开(公告)日:2008-05-22

    申请号:US12022570

    申请日:2008-01-30

    CPC classification number: F27D3/1536 B22D43/002 C21C5/4653

    Abstract: An improved vortex inhibitor for separating slag from molten metal during the discharge of molten metal through a nozzle includes a uniform castable refractory body with a generally tapering shape, a hollow chamber within the body and an elongated sacrificial member. The hollow chamber receives the sacrificial member or a mount for the sacrificial member. The refractory body and the sacrificial member combination in molten metal has a specific gravity less than the specific gravity of molten metal and is positioned narrow end downward when supported in molten metal. The hollow chamber can fill with molten metal to form a core that aids in orienting the body in a narrow end downward position. The sacrificial member align the with the area in which the vortex forms and minimizes interference with the flow through the discharge nozzle. The body preferably includes swirl obstructing surfaces.

    Abstract translation: 一种用于在熔融金属通过喷嘴排放期间将熔融金属分离的改进的涡流抑制剂包括具有大致锥形形状的均匀的可浇铸耐火体,在体内的中空室和细长的牺牲构件。 中空室容纳牺牲构件或用于牺牲构件的安装件。 熔融金属中的耐火体和牺牲构件的组合比重小于熔融金属的比重,并且当被支撑在熔融金属中时位于较窄的端部。 中空室可以填充熔融金属以形成有助于使主体朝向狭窄端向下位置的芯部。 牺牲构件与涡流形成的区域对准,并使与通过排放喷嘴的流动的干扰最小化。 身体优选包括漩涡阻塞表面。

    Tapping Tube for a Metallurgical Fusion Pot
    39.
    发明申请
    Tapping Tube for a Metallurgical Fusion Pot 审中-公开
    用于冶金熔化锅的攻丝管

    公开(公告)号:US20070216073A1

    公开(公告)日:2007-09-20

    申请号:US11568181

    申请日:2005-09-16

    CPC classification number: F27D3/1518 C21C5/4653

    Abstract: The invention relates to a tapping tube for a metallurgical fusion pot. The aim of the invention is to provide a tapping tube which minimizes possible downtime and enables essentially identical tapping durations during the use of the tapping tube. To this end, the tapping tube functionally divides into two parts, namely a first part embodied according to prior art, and a second part that can be connected to the first part in an easily exchangeable (replaceable) manner, thus forming a complete tapping tube. According to the invention, the section of the tapping tube relating to the flow is the outlet end. The cross-section of the outlet end determines the outflow quantity and thus the outflow duration (tapping duration) of the metal melt.

    Abstract translation: 本发明涉及一种用于冶金熔化锅的出钢管。 本发明的目的是提供一种攻丝管,其使可能的停机时间最小化,并且在使用攻丝管期间实现基本相同的攻丝持续时间。 为此,排水管功能上分为两部分,即根据现有技术实施的第一部分和可以容易地更换(可更换)的方式连接到第一部分的第二部分,从而形成一个完整的出料管 。 根据本发明,与流动相关的出料管的部分是出口端。 出口端的横截面决定了流出量,从而确定了金属熔体的流出持续时间(攻丝持续时间)。

    Method and apparatus for delivering metallurgically improved molten metal
    40.
    发明授权
    Method and apparatus for delivering metallurgically improved molten metal 有权
    用于输送冶金改进的熔融金属的方法和设备

    公开(公告)号:US07169349B1

    公开(公告)日:2007-01-30

    申请号:US10276625

    申请日:2000-05-17

    CPC classification number: C21C5/4653 B22D43/002

    Abstract: A method and an apparatus for enhanced metallurgical processing of molten metal includes an enclosable ladle chamber (23) for reducing the escape of heat during transport of the ladle from a manufacturing vessel such as a furnace (13) to an intermediate processing (15) or refining station or during processing or transport to a receptacle vessel such as a tundish (17). The method comprises introducing a refractory body into the ladle chamber (23), the body having an adjusted specific gravity having a reduced steel ballast to refractory material ratio that is less than required for a specific gravity required to buoyantly support the body in the molten metal. Preferably, the ratio provides a specific gravity greater than the specific gravity required to buoyantly support the body entirely in the slag layer. The method includes enclosing the ladle (22) for example, with a lid (90) and maintaining said refractory body in said ladle until substantially termination of the discharge of the molten metal from the vessel. Preferably, the method also includes intermediate refining such as introducing a balancing composition to the ladle before enclosing. The ratio of steel ballast and refractory material used to achieve the preferred specific gravity may also be adjusted in conjunction with other temperature-resistant or corrosion-resistant changes to the refractory body. For example, high temperature alumina may be used as a refractory material in a higher degree than in previously known bodies, a high temperature cement may be used to join the refractory material and ballast components, and a non-wetting agent made of carbonaceous or siliceous material may reduce deterioration of the body during the extended period of steel and slag contact in the ladle.

    Abstract translation: 一种用于增强熔融金属冶金加工的方法和设备包括一个可封闭的浇包室(23),用于在将钢包从诸如炉(13)的制造容器输送到中间处理(15)或 精炼站或在处理或运输到诸如中间包(17)的容器容器中。 该方法包括将耐火体引入浇包室(23)中,该主体具有调节的比重,其具有减小的钢质镇流器与难熔材料的比例,该比率小于在熔融金属中浮力地支撑主体所需的比重 。 优选地,该比例提供的比重大于在渣层中完全支撑身体所需的比重。 该方法包括例如用盖子(90)包围浇包(22),并将所述耐火材料体保持在所述浇包中,直到熔融金属从容器中排放到基本上终止。 优选地,该方法还包括中间精炼,例如在包封之前将平衡组合物引入钢包中。 用于实现优选比重的钢质镇流器和耐火材料的比例也可以与耐火材料的其他耐温或耐腐蚀变化相结合。 例如,高温氧化铝可以比以前已知的体系更高程度地用作耐火材料,可以使用高温水泥来连接耐火材料和压载组分,以及由碳质或硅质制成的非润湿剂 材料可能会减少长时间钢水和钢渣在钢包中的接触时体内的变质。

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