子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 81 | Launder burner | US11342907 | 2006-01-30 | US20070175297A1 | 2007-08-02 | John Hugens; Thomas Robertson |
| A launder is configured to convey a stream of molten metal from a tap hole in a vertical shaft melting furnace. A burner is arranged to fire in a direction extending upstream through the launder toward and into the furnace through the tap hole. In this arrangement, the burner can preheat both the furnace and the launder. | ||||||
| 82 | Method for automatically controlling hydraulic opener | US10031273 | 2001-10-26 | US06685876B1 | 2004-02-03 | Tarumi Murata; Toshiya Kitagawa; Masaaki Nogami |
| An automatic control method for a taphole opener for opening a taphole by giving impact and rotation to a drill unit holding a drilling rod and driving the drill unit forward and backward by a hydraulically driven feed motor, which method comprises the steps of; detecting the driving load in the form of detected hydraulic pressure, stopping the driving but maintaining the rotation when said detected pressure reaches an upper limit set value beyond which buckling may occur, and resuming the driving when said detected pressure falls to a lower limit set value or below. The drilling rod of the drills unit is prevented from buckling and idle hitting and a quicker taphole opening operation and enhanced accuracy of taphole depth can be obtained. Thus remote operation is made possible through the automation of the taphole opening work. | ||||||
| 83 | Piercing apparatus | US09567640 | 2000-05-09 | US06601655B1 | 2003-08-05 | Manabu Gotou; Keisuke Morimitsu; Hiromi Kawakami; Tuneo Iwasaki; Kazuo Haga; Yoshiichi Yatagai; Manpei Hontani; Hiroyuki Takao |
| A piercing apparatus compact in size having a decreased number of hoses is suited for use as an iron runner port-opening machine for a blast furnace or the like furnace in an iron mill. The piercing apparatus executes the piercing by moving back and forth, by using a feed unit, a drifter equipped with a forward-blowing unit, a reverse-blowing unit and a rotary unit, and wherein cylinders containing a cylindrical blowing piston are provided in front of, and at the back of, a drifter body maintaining a distance relative to each other; a shank rod having, formed as a unitary structure, a blowing portion of a large diameter with blowing surfaces formed on the front and rear portions thereof and rod-like small-diameter portions protruding forward and backward beyond the blowing portion, is provided along the axial direction of the drifter body in a manner that the blowing portion is positioned between the front cylinder and rear cylinder and that the small-diameter portions on both sides are fitted to the cylindrical blowing pistons of the respective sides; and valves are provided in the outer peripheral portions of the front and rear cylinders to supply hydraulic pressure into the cylinders. | ||||||
| 84 | Method for closing and opening a tapping hole of a metallurgical vessel | US09574782 | 2000-05-19 | US06379608B1 | 2002-04-30 | Bernhard Enkner; Helmut Kerschbaum; Ernst Höllwarth; Albert Paster; Christian Post |
| In a method for closing and opening a tapping hole of a metallurgical vessel, in which method a closure body (4), which leaves clear an annular gap between the closure body (4) and the wall of the tapping hole, can be moved out of a waiting position (I) into a closure position (II), in which it covers the tapping hole, and back, and in which method, at least in the closure position (II), a pressurized gas is introduced into the tapping hole counter to the outflow direction of a molten material contained in the metallurgical vessel, in order to avoid skull formation, the closure body (4) is moved out of the waiting position (I) into the closure position (II) and back with directions of movement which lie in different areas. | ||||||
| 85 | Tap hole drill | US09355591 | 1999-10-18 | US06269890B1 | 2001-08-07 | Victor Kremer; Philippe Malivior; Emile Lonardi |
| A taphole boring machine serving two tapholes includes a support structure, a mount and a suspension device of which the mount is secured on the supporting structure and the suspension device has a tilting device for the mount with the suspension device further including a mechanism within a frame, a first drive and two connection points with a mechanism designed in such a way that a positively guided translation of two connection points in relation to the frame can be produced by a drive pulse of the first drive so that a connecting line through the two connection points remains parallel with itself during such movement. | ||||||
| 86 | Stave for metallurgical furnace | US243505 | 1999-02-01 | US6090342A | 2000-07-18 | Takashi Sumigama; Bungo Iino; Kazumasa Wakimoto; Mamoru Tsukamoto |
| A stave for a metallurgical furnace comprises a stave body and a path for a coolant. The stave body is unitarily formed of a casting of copper or a copper alloy. The path for a coolant is formed within the stave body when the stave body is cast, and the path having an inner diameter. | ||||||
| 87 | Tap hole drilling machine for blast furnace, drill bit for use in tap hole drilling machine, and tap hole drilling method | US214589 | 1999-01-07 | US6086816A | 2000-07-11 | Joung Yul Lee; Gap Yeol Kim; Dong Seog Pae |
| A tap hole drilling machine, a drill bit for use in it, and a drilling method are disclosed. A nitrogen gas supply line for pressurised nitrogen as a carrier gas and a cooling water supply line are provided to form water mist for cooling the drill bit, the drill rod, the main body of the drilling machine and the tap hole. Thus the drilling time period is markedly shortened, the molten iron discharge time period is significantly increased, and the net consumption rate of the refractory material is considerably decreased. Therefore, by properly adjusting the amount of the molten iron existing within the lower portion of the blast furnace, the condition of the blast furnace can be stabilized, and the productivity can be improved. Advantageous conditions can be provided for the operation even under a high pressure and a high temperature environment. | ||||||
| 88 | Tapping method for blast furnace | US495466 | 1995-07-26 | US5616166A | 1997-04-01 | Masao Fujita; Osamu Iida |
| In tapping method in which molten iron (16) and molten slag (18) are discharged from a blast furnace, a conducting pipe (30) is connected to the external side of a molten iron taphole (12), and an electromagnetic energy supply body (32) is disposed around the outer periphery of the conducting pipe (30), whereby a turning motion or a magnetic pressure due to an electromagnetic repulsive force to the molten iron flowing in the conducting pipe (30) for separating the molten iron (16) from the molten slag (18) thus controlling the discharge rates thereof. With this tapping method, it becomes possible to keep substantially constant the discharged amounts of molten iron and molten slag from the blast furnace during a period from the starting to the completion of the tapping and significantly reduce the number of drilling/blocking upon tapping, and hence to stabilize quality of products and save the tapping work. | ||||||
| 89 | Nozzle guard for blast furnace mudgun | US72611 | 1993-06-07 | US5346186A | 1994-09-13 | William F. Given |
| A nozzle guard device (50, 50') has a generally C-shaped half-shell configuration for shielding a lower and otherwise exposed portion of a blast furnace mudgun nozzle (22) from damaging contact with molten metal and slag during taphole closure operations. Mounting elements (86, 86') are provided for extension into an opening (26) of the nozzle (22) for embedding a refractory clay material contained within the opening (26) for securing the nozzle guard device (50, 50') in position on the nozzle (22). | ||||||
| 90 | Device for the rapid repair of a blast-furnace plate | US781137 | 1991-12-26 | US5249959A | 1993-10-05 | Jacques Menuge |
| A device repairs worn depressed surfaces around a tap hole opening in a blast furnace plate. The device includes a preformed frusto-conical member made of a refractory material that is flexible and rapidly baked. A ferrule is formed of frangible material and encloses the refractory member therein. The ferrule is fastened to the nose of a tap hole gun which impacts against the depressed surface thereby causing destruction of the ferrule and allowing adhering deformation of the refractory material to fill the worn depressed surface of the plate--around the tap hole. | ||||||
| 91 | Method of manufacture of pig iron using hollow tube to reseal tap role | US665475 | 1991-03-06 | US5058864A | 1991-10-22 | Ronald N. Molenaar; Rienk M. Nijholt |
| In the manufacture of pig-iron in a shaft furnace, a taphole is closed with hardened plugging compound during making of the iron and is opened for the tapping of the iron and then resealed. The resealing of the taphole comprises inserting hardenable plugging compound into the taphole and, before hardening thereof, driving a hollow tube into the plugging compound. The hollow tube has an open front end. The tube is pulled out at the next tapping. The use of a tube avoids disturbance of the plugging compound and creates a smoother taphole, leading to improved flow of liquid iron. | ||||||
| 92 | Extension bar for blast furnace tap hole drill | US504603 | 1990-04-04 | US5005807A | 1991-04-09 | Ronald J. Mathews; Robert T. Woodings |
| An improved extension bar for a drill rod assembly on a blast furnace tap hole drill having an increased diameter sufficient to occupy a significant portion of tap hole drilled so as to minimize the volume of blast furnace hot metal that can emerge from the blast furnace before the striking bas assembly can be removed, and having a protective sleeve portion at the rearward end thereof to shield and protect the interface between the drill rod and extension bar to prevent such interface from being exposed the hot metal and thereby avoid the possibility that they could become welded together. | ||||||
| 93 | Process and apparatus for opening furnace tapholes | US304661 | 1989-01-31 | US4960379A | 1990-10-02 | Werner Schneider |
| To open a furnace taphole that is closed by a body of plugging material and a tapping rod the tapping rod is driven into the interior of the furnace. Because the tapping rod is driven in and not withdrawn, it is not necessary to provide a second hammer striking blows in the opposite direction, but the hammer used to drive the tapping rod into the body of plugging material is again employed. | ||||||
| 94 | Process and notch gun for closing the tapholes of furnaces | US295298 | 1989-01-10 | US4909487A | 1990-03-20 | Werner Schneider |
| In closing furnace tapholes a plugging material is forced into the taphole through the nozzle of a notch gun and simultaneously a tapping rod, which remains in the taphole until the furnace is filled, is introduced into the plugging material. Opening of the taphole by itself is thus avoided. | ||||||
| 95 | Apparatus and method for boring through the taphole in a molten metal blast furnace | US316157 | 1989-02-27 | US4895349A | 1990-01-23 | Gilbert R. Broom |
| A drill shaft assembly for a blast furnace taphole-opening system includes a drill shaft adapted for receipt of a drill bit at its forward end and for coupling with a hollow drill tool piece at its rearward end. The drill shaft has a solid cross-section along substantially its entire length and is provided, beginning at its rearward end, with an air channel which is in communication with a source of pressurized air for clearing dust from the taphole as it is being drilled. A coupling means is provided so that the drill shaft may be detachably attached to the drill tool piece shaft so that it is readily replaceable. | ||||||
| 96 | Expandable tap hole plug | US279502 | 1988-12-05 | US4877221A | 1989-10-31 | Rick R. Scriven |
| An expandable tap hole plug includes a plug comprising a cylindrical member having a circular nose and an outwardly extending flexible sidewall forming a variable obtuse angle with respect to the nose. The plug is adatepd to be oriented within a tap hole of a metallurgical vessel with the nose directed towards the interior of the vessel. An expander, in the form of a truncated cone, has a base and spokes extending outwardly from the base forming a variable obtuse angle with respect to the base. The expander is inverted relative to the plug and is attached to the plug with the spokes of the expander engaging the sidewall of the plug. The angle between the side section and base of the expander is varied so as to vary the angle of the sidewall of the plug relative to the nose thereof to block the tap hole. | ||||||
| 97 | Suspension and anchorage device for a rail-mounted movable plugging machine for metallurgical furnaces | US095568 | 1987-09-11 | US4796869A | 1989-01-10 | Pierre Mailliet; Jean Metz |
| A suspension and anchoring device for a rail mounted plugging and drilling machine for use in conjunction with metallurgical furnaces is presented. The suspension and anchoring device comprises a cradle mounted on rails which is movable by means of a parallelogram shaped guide bar system actuated by an operating cylinder which shifts the plugging and drilling device between a work position and a travel position. | ||||||
| 98 | Rod chucking device for a perforator for perforating a pig iron discharge opening in a blast furnace | US824706 | 1986-02-10 | US4682780A | 1987-07-28 | Kenichiro Kurama; Michiyasu Shibata |
| A rod chucking device for a perforator for perforating a pig iron discharge opening being adapted to mount exchangeably perforating rods for perforation work, such as drill rods, blanking rods and the like to the tip end of an impact rod. The chucking device has a cotter movable between an engage position and disengage position in order to fix the perforating rod inserted into a rod insert hole of a socket. A spring is engaged with the cotter for urging the cotter toward the engage position. In order to prevent deterioration of the spring through vibration and heat during the operation, chilling air passage from the impact rod to the perforating rod is separated to form an air passage to chill the spring. | ||||||
| 99 | Taphole drilling device for shaft furnaces | US618571 | 1984-06-08 | US4602770A | 1986-07-29 | Pierre Mailliet; Charles Tarducci; Henri Radoux; Guy Thillen |
| A taphole drilling device for shaft furnaces is presented which is controlled by hydraulic fluid means. The taphole drilling device is particularly suitable for use in conjunction with a drilling process wherein the opening and closing of the taphole comprises the positioning and extraction of a drill rod which is left inside the taphole between successive tappings. One embodiment of the present invention essentially comprises a bar, a uni-directional percussion instrument which slides along the bar under the action of a motor, a device for coupling the drill rod to the percussion instrument and a means provided at the front end of the bar for guiding and supporting the drill rod. It will be appreciated that the motor used to drive the percussion instrument is preferably a hydraulic motor. In a second embodiment, a hydraulic jack is used to initially disengage the drill rod from the taphole and thereafter the drill rod is extracted under the action of a uni-directional percussion instrument powered by a pneumatic or hydraulic motor. | ||||||
| 100 | Taphole plugging apparatus for a shaft furnace | US602510 | 1984-04-20 | US4544143A | 1985-10-01 | Arthur Cooper; Pierre Mailliet |
| A shaft furnace plugging apparatus is presented which occupies very little space and sweeps out a relatively low and comparatively flat continuous trajectory between an inoperative position and an operative position. The plugging apparatus includes a clay gun pivotably mounted on a first end of a jib, the jib being rotatable about a support column. The apparatus also includes a pair of hydraulic cylinders, the first hydraulic cylinder being pivotably attached between a second end of the jib and an intermediate pivotable frame and the second hydraulic cylinder which is operative between the intermediate pivotable frame and a fixed support frame. | ||||||
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