公开(公告)号：WO1997045561A1

公开(公告)日：1997-12-04

申请号：PCT/US1997008746

申请日：1997-05-23

Applicant: LTV STEEL COMPANY, INC.

Inventor： LTV STEEL COMPANY, INC. ,  MARKARIAN, Kegham, M. ,  MORGAN, James, P.

IPC: C21B11/00

CPC classification number: C22B1/2406 ,  C21B13/0046 ,  C22B7/02 ,  Y02P10/216 ,  Y10S75/961 ,  Y10S75/962

Abstract: A method of agglomerating oil-containing steel mill waste includes the step of combining a first steel mill waste component with a second steel mill waste component to form a mixture. The first waste component includes substantially dry non-oily steel mill waste (30) and the second waste component includes oil-containing steel mill waste (32). The first waste component and the second waste component are agglomerated.

Abstract translation: 含油的钢厂垃圾的凝集方法包括将第一钢铁废料组分与第二炼钢废料组分混合以形成混合物的步骤。 第一废料组分包括基本干燥的非油性钢铁废料（30），第二废料组分包括含油的钢厂垃圾（32）。 第一废物组分和第二废物组分凝聚。

公开(公告)号：WO1994019498A1

公开(公告)日：1994-09-01

申请号：PCT/US1993001504

申请日：1993-02-19

Applicant: LTV STEEL COMPANY, INC.

Inventor： LTV STEEL COMPANY, INC. ,  PETRUSHKA, Robert, G. ,  ROTE, Franklin, E.

IPC: C21C07/00

CPC classification number: C21C5/4653 ,  B22D43/001 ,  C21C2005/468

Abstract: The present invention provides a new and improved method and apparatus for tapping molten metal through the top hole of a metallurgical vessel (2). The apparatus utilizes a ladle or a BOF furnace or other metallurgical vessel (2) used for the containment of molten metal. At least one extension drive mechanism (24) is attached to the support structure (6) position the distal end of a lance (32) within the vessel (2) a predetermined distance above the surface (16) of its contents. The lance (32) is connected to an inert gas source (26) such as Argon. Once the lance is properly positioned, the inert gas is directed onto the surface (16) of the molten metal to prevent the slag from entering the tap hole (4). An alignment drive (30) can also be attached to the support structure (6) to adjust the position of the extension drive (24) relative to the vessel (2) so that the lance (32) may be properly positioned within the vessel (2) above the tap hole (4). The extension (24) and alignment (30) drives are operatively controlled by a computerized controller (22) which interfaces with the sensors to monitor the physical characteristics of the vessel (2). The controller (22) operatively controls the drives to position the lance (32) a predetermined distance above the tap hole (4) of the vessel (2).

Abstract translation: 本发明提供了一种用于通过冶金容器（2）的顶孔攻丝熔融金属的新的和改进的方法和装置。 该设备利用钢包或BOF炉或用于容纳熔融金属的其它冶金容器（2）。 至少一个延伸驱动机构（24）附接到支撑结构（6），其位于血管（2）内的喷枪（32）的远端，在其内容物的表面（16）上方预定的距离。 喷枪（32）连接到诸如氩气的惰性气体源（26）。 一旦喷枪正确定位，惰性气体被引导到熔融金属的表面（16）上，以防止炉渣进入排水孔（4）。 对准驱动器（30）也可以附接到支撑结构（6）以调节延伸驱动器（24）相对于容器（2）的位置，使得喷枪（32）可以适​​当地定位在容器内 2）在排气孔（4）上方。 延伸部（24）和对准（30）驱动器由计算机控制器（22）可操作地控制，计算机控制器（22）与传感器接口以监测容器（2）的物理特性。 控制器（22）可操作地控制驱动器以将喷枪（32）定位在容器（2）的抽头孔（4）上方一预定的距离处。

公开(公告)号：WO1997013599A1

公开(公告)日：1997-04-17

申请号：PCT/US1996016379

申请日：1996-10-10

Applicant: VESUVIUS CRUCIBLE COMPANY ,  LTV STEEL COMPANY, INC.

Inventor： VESUVIUS CRUCIBLE COMPANY ,  LTV STEEL COMPANY, INC. ,  JANSSEN, Dominique ,  SIMOES, Jose, Antonio, Faria ,  RUSSELL, Robert, O.

IPC: B22D41/58

CPC classification number: F27D3/16 ,  B22D41/58 ,  F27D3/1518

Abstract: A refractory nozzle assembly (1) is provided that effectively prevents the accumulation of alumina deposits around its upper edge where it receives a stopper rod. The nozzle assembly includes a refractory nozzle body (7) having an upper (9) and a lower portion (11). A bore (13) extends through both the upper and lower portions that has a receiving and a discharge end for receiving and discharging molten metal. An inert gas distributor (20) circumscribes the upper portion of the nozzle body. A sleeve (40) of gas-obstructing refractory material covers the walls of the bore, and defines a seat portion at an upper portion of the bore. A metal sheath (50) substantially surrounds the outer surface of the upper portion (9). Pressurized inert gas conducted to the upper, gas permeable portion of the nozzle body by the gas-distributing assembly is guided by the gas-obstructing sleeve and the metal sheath so that it flows predominantly through the top edge of the upper portion. The resulting inert gas flow shields the seat portion of the bore from ambient oxygen, thereby preventing the accumulation of alumina deposits on the seat portion that can interfere with the ability of the stopper rod to control the flow of molten metal.

Abstract translation: 提供了一种耐火喷嘴组件（1），其有效地防止氧化铝沉积物围绕其上边缘积聚在其上接收塞杆的位置。 喷嘴组件包括具有上部（9）和下部（11）的耐火喷嘴体（7）。 孔（13）延伸穿过具有用于接收和排出熔融金属的接收和排出端的上部和下部。 惰性气体分配器（20）围绕喷嘴体的上部。 气体阻塞耐火材料的套筒（40）覆盖孔的壁，并且在孔的上部限定了座部。 金属护套（50）基本上围绕上部（9）的外表面。 通过气体分配组件传导到喷嘴主体的上部透气部分的加压惰性气体被气体阻挡套管和金属护套引导，使得其主要流过上部的顶部边缘。 所产生的惰性气体流动将孔的座部分与环境氧隔离，从而防止在座部上积聚氧化铝沉积物，从而妨碍塞棒控制熔融金属流动的能力。

公开(公告)号：WO1986000412A1

公开(公告)日：1986-01-16

申请号：PCT/US1985001241

申请日：1985-06-26

Applicant: LTV STEEL COMPANY, INC.

Inventor： LTV STEEL COMPANY, INC. ,  HARRIS, Richard, M. ,  VALEK, David, A. ,  ABRAMCZYK, Richard, F. ,  TOTH, James, M.

IPC: G01N27/82

CPC classification number: G01N27/9013 ,  B21B38/00 ,  G01N27/902

Abstract: Method and apparatus for scanning a generally cylindrical workpiece for flaws. A cylindrical metallic sleeve (30) is rotatably supported about a workpiece path of travel. Two differentially wound energization coils (34a, 34b) surround the sleeve near two apertures (32a, 32b) in the sleeve. The coils are energized with a high frequency signal that induces eddy currents in the workpiece. The apertures periodically disrupt the eddy current inducing magnetic fields which enhances signals from the coils indicative of the presence of flaws in the workpiece.

公开(公告)号：WO1986000411A1

公开(公告)日：1986-01-16

申请号：PCT/US1985001240

申请日：1985-06-26

Applicant: LTV STEEL COMPANY, INC.

Inventor： LTV STEEL COMPANY, INC. ,  HARRIS, Richard, M. ,  ABRAMCZYK, Richard, F.

IPC: G01N27/82

CPC classification number: G01N27/9026 ,  G01N27/9013

Abstract: Eddy current test apparatus (10) of the type that generates eddy currents in an object (12) and that senses flaws or defects by sensing changes in the induced eddy current. Two differential encircling coils (14, 16) surround a moving workpiece (12) moving relative to said coils (14, 16). One of the two test coils (14) has an enclosed tubular pathway (22) forming a loop adjacent to the coil. A steel ball (24) is placed in the enclosed tubular pathway (22) and is air driven through the pathway (22) so that it continuously revolves in close proximity to the coil (14). The steel ball (24) disrupts the magnetic field flux generated by the test coil (14) in the workpiece (12). This disruption modifies the eddy current in the workpiece (12) which in turn induces a well defined output signal in the test coil (14). In an alternate and preferred embodiment, two ferrite objects (66, 68) are rotated near the two encircling coils to disrupt the eddy currents produced by both coils (14, 16). The ferrite objects (66, 68) are radially offset so that they do not disrupt the magnetic fluid near a flaw at the same time.