WO2003103878A1 - Appareil a buse coulissante - Google Patents

Appareil a buse coulissante Download PDF

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Publication number
WO2003103878A1
WO2003103878A1 PCT/JP2003/007305 JP0307305W WO03103878A1 WO 2003103878 A1 WO2003103878 A1 WO 2003103878A1 JP 0307305 W JP0307305 W JP 0307305W WO 03103878 A1 WO03103878 A1 WO 03103878A1
Authority
WO
WIPO (PCT)
Prior art keywords
pressure receiving
receiving plate
plate
slider
housing
Prior art date
Application number
PCT/JP2003/007305
Other languages
English (en)
Japanese (ja)
Inventor
信行 横井
浩二 露口
和志 上野
アルミン クルスフェルド
Original Assignee
黒崎播磨株式会社
クァルテック ゲー・エム・ベー・ハー
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 黒崎播磨株式会社, クァルテック ゲー・エム・ベー・ハー filed Critical 黒崎播磨株式会社
Priority to AU2003242122A priority Critical patent/AU2003242122A1/en
Publication of WO2003103878A1 publication Critical patent/WO2003103878A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures
    • B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
    • B22D41/40—Means for pressing the plates together
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/14—Closures
    • B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
    • B22D41/38—Means for operating the sliding gate

Definitions

  • the present invention relates to a sliding nozzle device used for various types of molten metal containers, and more particularly to a sliding nozzle device that releases a load of surface pressure by moving a cover.
  • Sliding nozzle devices are widely used in molten steel pots and tundishes because they can accurately control the flow rate of molten metal.
  • This sliding nozzle device is generally a two-plate type combining an upper plate and a lower plate, and the sliding surfaces between the plates are used to prevent molten steel from entering between these plates.
  • a surface pressure load mechanism is set to a value that does not hinder operation.
  • a coil spring, a disc spring or a similar compression spring is usually used.
  • a bolt-tight system is generally employed.
  • workers usually use tools to tighten or loosen the port.However, it is a hot and heavy work and the port is easy to seize. There's a problem.
  • One is a device consisting of two metal frames, a housing and a slider.
  • the other is a device consisting of three metal frames: a housing, a slider, and a cover.
  • this device is composed of a housing that holds the upper plate and a slider that holds the lower plate.
  • the slider has rollers 1 on both sides, and can move horizontally on a frame held by a spring provided in the housing. The horizontal pressure of the slider is used to release the surface pressure.
  • this device must use two oil cylinders with different stroke lengths in the case of releasing the surface pressure load and in the case of controlling the flow rate of molten steel. Therefore, there is a problem that it takes time to replace the driving device during the plate replacement work.
  • the part where the slider receives the spring pressure is a point, that is, the roller bearing. Therefore, the center of the surface pressure shifts with respect to the upper plate with the movement of the slider. In other words, the center of the surface pressure cannot always be located around the nozzle hole of the upper plate, and in some cases, there is a problem that molten steel easily enters between the surfaces. Furthermore, there is also a problem that the roller 1 becomes extremely high in temperature and easily seizes.
  • the device consisting of the housing, slider and cover receives the spring repulsion force with the cover that does not move during use, so the center of the surface pressure does not move and it is always uniform near the nozzle on the upper plate.
  • the above-mentioned problem is solved by applying great pressure.
  • Japanese Patent Publication No. 30211333 discloses a sliding nozzle device in which a cover is released in conjunction with a slider to release a surface pressure.
  • the surface pressure load mechanism is configured such that engaging pins 75 of spring boxes provided on both sides of the cover 74 correspond to protrusions 72 provided on the housing 71, and the cover moves. The spring is pressurized by the engagement. Further, the projection provided on the housing is attached to a large hook 76 rotatably provided on the housing.
  • this device requires that the drive be mounted on the eight housing. There is a restriction that it must not. If the drive device is provided on the cover, the cover receives the reaction force of the drive device when the slider slides and the cover rattles, causing the surface pressure to fluctuate during use and the heavy metal frame. As a result, there is also a problem that it is difficult to manually open and close the work. Therefore, since the drive device is provided in the housing, the troublesome work of attaching and detaching the auxiliary block to the cutout portion of the cover every time the plate brick is replaced is increasing. If you forget to do this, it is very dangerous because the slider will fall down when you open the cover.
  • this device has a hinge part larger than a normal device in terms of pressure resistance, and has spring boxes on both sides of the cover, so the cover itself is wide and large and heavy. I have.
  • the large hooks on both sides of the eight housings must be hooked up and removed every time the surface pressure load is released. Thus, there is a problem that the device becomes large.
  • the present invention provides a conventional sliding nozzle device which is compact and has high safety in a conventional sliding nozzle device which compresses an elastic body by movement of a cover interlocked with a slider.
  • the cover is connected to the opening / closing door and the pressure receiving member.
  • the door consists of two parts.
  • the opening and closing door is attached to the housing so that it can be opened and closed by a rotation axis parallel to the sliding direction.
  • the opening and closing door is provided with a drive unit, and the drive unit is connected to a slider.
  • a pressure receiving plate is provided on the surface of the slider opposite to the housing so that it can slide and can be attached to and detached from the housing, and an elastic body is provided between the pressure receiving plate and the housing.
  • elastic It is a sliding nozzle device capable of pressurizing a body.
  • a spring is provided in the housing as an elastic body, a pressing member for pressing is provided in the spring, and the pressing member has a receiving portion, while the pressure receiving plate has wings on a longitudinal side surface, and the pressure receiving plate has This is a sliding nozzle device that moves and moves the blades of the pressure receiving plate into engagement with the receiving portion of the pressing member, thereby connecting the pressure receiving plate and the housing and pressing the spring.
  • a fixing member having a pressure receiving plate having a rotating shaft in a direction perpendicular to the sliding direction, wherein when the fixing member is parallel to the sliding direction, the opening / closing door is located at a position closer to the driving device than the rotating shaft.
  • a sliding nozzle device having a fixing member on a pressure receiving plate such that when the driving device side of the fixing member rotates to the opposite side to the plate brick, the fixing member is in contact with the end surface of the slider on the opposite side across the rotation shaft. is there.
  • a notch is provided in the center of the pressure receiving plate, and a projection provided on the slider is housed in the notch. The end of the pressure receiving plate opposite to the drive unit side faces the notch.
  • a sliding nozzle device in which an adjuster screw is screwed in parallel to the sliding direction, and the tip of this adjuster protrudes into the notch of the pressure receiving plate.
  • the present invention is characterized in that a conventional cover is separated into two, an opening / closing door and a pressure receiving plate, in a conventional sliding nozzle device for moving a cover to release a surface pressure.
  • the door has the function of holding the drive unit in addition to the conventional function of opening and closing the cover
  • the pressure receiving plate mainly has the function of sliding and holding the slider, the function of connecting to the housing, and the elastic body. It has a function to pressurize.
  • the pressure receiving plate can be reduced in width by eliminating the need for the hinge. Also, since the door does not receive any pressure, the thickness can be made considerably thinner and smaller. For this reason, it becomes possible to make it smaller than the conventional opening and closing metal frame.
  • the conventional cover is divided into an opening / closing door and a pressure receiving plate, it becomes possible to provide a drive device in the opening / closing door. This is because the door receives the reaction force when the slider slides, so that the pressure receiving plate does not rattle. For this reason, There is no trouble of attaching and detaching the auxiliary block as before, and there is no danger of the slider dropping.
  • the width of the pressure receiving plate becomes extremely short, and in addition, the thickness of the pressure receiving plate is reduced by reducing the area of the pressure receiving plate.
  • the wings are attached to the side of the pressure receiving plate to provide the function of pressing the pressing member and the function of connecting the housing and the pressure receiving plate, a large hook is not required as in the past, and the device is required when It can be so compact.
  • the fixing member provided on the pressure receiving plate has a function of stopping the movement of the pressure receiving plate during use and a function of receiving the driving force from the slider when the surface pressure is released. Handling work is simplified.
  • the fixing member protrudes largely toward the front in the center of the apparatus when the surface pressure can be released, it can be easily visually detected that the surface pressure can be released. Even if you overlook it at this time, be sure to know that the surface pressure has been released or that it is in a dangerous state because the fixing member is in the way when you attach the heat shield as a subsequent work. Can be done.
  • FIG. 1 is a perspective view showing a state in which an opening / closing door is opened at an opening angle of about 100 degrees with a sliding nozzle device according to the present invention with a driving device facing upward.
  • FIG. 2 shows a longitudinal sectional view parallel to the sliding direction of the sliding nozzle device.
  • FIG. 3 shows a vertical sectional view perpendicular to the sliding direction of the sliding nozzle device.
  • Fig. 4 shows the relationship between the wing and the spring pressurizing member under the condition that a surface pressure is applied.
  • Fig. 5 (a) is a partial plan view showing the relationship between the fixed plate and the pressure receiving plate
  • Fig. 5 (b) is a partial side view showing the relationship between the fixed plate and the pressure receiving plate
  • Fig. 5 (c) is the fixed Board and 03 07305
  • FIG. 6 shows a longitudinal sectional view parallel to the sliding direction of the sliding nozzle device.
  • FIG. 7 shows the relationship between the blade and the spring pressing member when the surface pressure is released.
  • FIG. 8 shows a longitudinal sectional view parallel to the sliding direction of the sliding nozzle device.
  • FIG. 9 is a longitudinal sectional view of a conventional sliding nozzle device having a surface pressure load release mechanism.
  • FIG. 1 is a perspective view showing a state in which the opening / closing door is opened at an opening angle of about 100 degrees with the sliding nozzle device with the driving device facing upward.
  • FIG. 2 shows a vertical sectional view of the sliding nozzle device of the present invention
  • FIG. 3 shows a vertical sectional view perpendicular to the sliding direction in FIG.
  • the present invention is characterized in that an opening / closing door 21 and a pressure receiving plate 40 are provided instead of a conventional cover.
  • the opening / closing door 21 is attached to the housing 20 so as to be openable and closable by a rotating shaft 22 parallel to the sliding direction.
  • the cylinder housing is provided with an oil cylinder 25 as a drive device.
  • a push rod 31 is connected to the end of the rod of the oil cylinder 1 and a slider 30 is connected to the push rod.
  • a pressure receiving plate 40 is provided on the surface of the slider 30 opposite to the housing 20 so as to be slidable.
  • the pressure receiving plate 40 can be detachably provided to the housing by wings 41 provided on the side surface thereof.
  • the slider 30 connected to the oil cylinder 25 and the pressure receiving plate 40 connected to the slider are opened and closed together.
  • open the door 21 to open the slider. 30 and the pressure receiving plate 40 are opened, and the upper plate and the lower plate can be exchanged.
  • the oil cylinder 25 is fixed to a cylinder housing 23 provided on the door 21.
  • the tip of the rod 26 of the oil cylinder is connected to the push rod 31 and passes through the inside of the cylinder housing 23 provided on the door.
  • the other end of the push rod 31 is connected to the slider 3.
  • a pressure receiving plate 40 is held in a housing 20 by pressing a wing 41 on a side surface thereof upward by a spring pressing member 60.
  • a slider 30 for holding the lower plate 8 is held on the pressure receiving plate 40 so as to be slidable in the front-rear direction in the figure.
  • the housing 20 has through holes on both sides of the longitudinal direction of the upper plate 7, and springs 12 as elastic bodies are housed in the through holes.
  • a rod 13 having a flange 16 at one end penetrates the spring 12, and is connected to the spring pressing member 60 by a bolt 14 inserted therein.
  • the blade provided on the side surface of the pressure receiving plate has a function of connecting to the housing and a function of pressing the spring. As shown in FIG.
  • the spring pressing member 60 is provided so as to face the respective springs from the connecting plate 61 connecting the two rods 13 long in the sliding direction and the connecting plate. It has two receiving portions 62.
  • This receiving portion has a receiving portion inclined surface 63 on the surface on the spring side, and the inclined surface is configured such that its thickness decreases in one direction of the cylinder. Accordingly, the load can be released from the surface pressure between the plates by pressing or relaxing the spring by moving the pressure receiving plate in the sliding direction. Moreover, at this time, the pressure receiving plate and the housing are connected and disconnected at the same time.
  • the housing has two through holes on one side and four through holes on both sides,
  • the spring a coil spring, a flat panel or a Helicaldisk Spring (manufactured by Dr. Werner Rohrs KG) can be used.
  • the end face of the pressure receiving plate 40 on the oil cylinder side is as shown in Fig. 5 (a).
  • the fixed plate 44 is connected to each other by rotating shafts 43 on both sides of the convex portion 42 so as to fit into the convex portion 42 and to be rotatable.
  • the fixing plate 44 has a plate shape having a concave portion on the connection side with the pressure receiving plate. As shown in FIG. 5 (b), the fixing plate 44 is lower than the pressure receiving plate and opposite to the plate brick. It is attached rotatably.
  • the end of the fixing plate on the concave side has a central inclined surface 47a and inclined surfaces 47b on both sides, and is inclined by about 45 degrees.
  • the ends on both sides of the recess are inserted into the space provided in the pressure receiving plate.
  • the inclined surface 47a at the center stops as shown in Fig. 5 (c) because it contacts the end surface of the pressure receiving plate.
  • both ends of the recess come out of the space of the pressure receiving plate.
  • the inclined surfaces 47 b on both sides form a plane perpendicular to the sliding direction. As shown in FIG.
  • this vertical surface abuts against the end surface of the slider, and the slider abuts against the inclined surfaces 47 b at both ends, whereby the pressure receiving plate can be moved to the oil cylinder side.
  • a groove 45 long in a direction perpendicular to the sliding direction is formed on the surface of the fixing plate 44 on the housing side, that is, on the molten metal side, and on the oil cylinder side. As shown in FIG. 2, this groove 45 can be connected to the opening / closing door by being fitted to a wall 24 on the end face of the cylinder housing.
  • the pressure receiving plate has an oblong cutout portion 48 into which the lower nozzle storage tube 32 is inserted.
  • the notch 48 has a sufficient length so that the lower plate 8 can slide within the stroke range of the oil cylinder.
  • a port-shaped adjuster 49 is screwed in the sliding direction from the center of the end face of the pressure receiving plate 40 opposite to the oil cylinder 1 toward the opening, and the tip of the adjuster plate is (See Fig. 6). Further, the lower nozzle housing cylinder 32 comes into contact with the tip of the adjuster.
  • the adjuster 49 is provided for fine adjustment of the position so that the fixing plate 44 can be connected to the wall 24 of the cylinder housing. That is, when replacing the plate brick, finely adjust the length of the connection between the oil cylinder 1 and the push rod 31 to adjust the position of the plate bricks. As a result, the position of the slider at the end of the forward movement of the oil cylinder changes. T JP03 / 07305
  • the blade 41 on the side of the pressure receiving plate is disengaged from the spring pressing member 60, as shown in FIG. 7, so that the connection between the pressure receiving plate 40 and the housing 20 is released.
  • the surface pressure between the plate bricks is released.
  • the slider connected to the oil cylinder and the pressure receiving plate connected to the slider can be opened at the same time as shown in Fig. 1. In this state, the plate brick can be replaced.
  • the manual operation for releasing the contact pressure is a simple light work of simply removing the lock pin 65 and falling down the fixing plate 44, and is very simple.
  • Fig. 1 it is characterized in that it can be opened and closed with a slider and a pressure receiving plate hanging on a rod extending from the drive unit to the door.
  • the pressure receiving plate is not provided with the hinge, the elastic body, the pressing member, and the like, the width is almost the same as the slider, which is very small, and thus the weight is lighter.
  • the doors are compact because they do not receive pressure and do not need to be rugged. For this reason, the burden on the operator when opening and closing is small, and a drive device can be attached to the door.
  • the blades on the side of the pressure receiving plate engage with the spring pressing member, so that the surface pressure is applied between the plate bricks and at the same time the pressure receiving plate and the housing are connected.
  • the pressure plate and the opening / closing door are connected by fitting the fixing plate to the cylinder-housing wall with the groove of the fixing plate, and the movement of the pressure receiving plate is stopped. After that, lock the fixed plate with the lock pin so that it does not come off, and bring it to the state shown in Fig. 8.
  • the heat shield is a thin plate provided to protect the device from heat, and is a metal plate that is attached to cover almost the entire lower surface of the device. This work of attaching the heat shield is an operation that is always performed after the pressure receiving plate is closed. If you forget to connect the fixing plate and the fixing plate is protruding, you can easily notice that you have forgotten to connect the fixing plate because the fixing plate obstructs the installation of the heat shield. As described above, since it is not physically possible to proceed to the next work process, it is possible to prevent forgetting to connect the fixing plate. Can be stopped.
  • a single fixing plate has three functions: a function to stop the movement of the pressure receiving plate, a function to connect with the slider, and a function to prevent forgetting to connect the fixing plate.
  • the device has the advantage of being compact.
  • the spring is pressed by surface contact between the wings provided on the pressure receiving plate and the pressing member, but has an effect of stopping the movement of the pressure receiving plate during use.
  • the slider is slid to control the flow rate of molten steel.
  • the pressure receiving plate since the slider and the pressure receiving plate are in surface contact, the pressure receiving plate also receives a reaction force.
  • the wing has a small frictional force with the pressing member like a mouthpiece, there is a problem that the pressure receiving plate moves as the slider slides. If the pressure plate moves, it is dangerous because the surface pressure fluctuates. Also, if this is to be stopped completely, it will be necessary to tightly fix the pressure receiving plate and the housing. According to the present invention, the gap between the groove of the fixing plate and the wall of the cylinder housing must be set very small. As described above, the present invention has the following effects.
  • the conventional pressure plate is separated into two parts, the opening and closing door and the pressure plate, and the oil cylinder is fixed to the opening and closing door to prevent the pressure plate from moving during use. Stabilize.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)

Abstract

La présente invention concerne un appareil à buse coulissante comportant un organe d'application de force élastique ainsi qu'un élément coulissant. Cet ensemble, qui est monté entre un carter et un couvercle, applique une pression superficielle entre des parements en brique, ou supprime la pression en déplaçant le couvercle. L'appareil et capable, d'appliquer de façon fiable et simple la pression superficielle, et de prévenir un incident aux endroits où la pression superficielle disparaît pendant l'utilisation. Le couvercle est fait de deux parties qui sont une porte (21) et une platine recevant la pression (40). La porte (21) est installée de façon à pouvoir d'ouvrir ou se refermer par rapport au carter (20) au moyen d'un axe oscillant parallèle à l'axe de coulissement. La porte (21) est équipée d'un organe d'entraînement (25) et d'un élément coulissant (30) relié au dispositif d'entraînement. La platine recevant la pression et disposée amovible sur la surface de l'élément coulissant (30), à l'opposé du carter (20). Un corps élastique vient entre la platine recevant la pression (40) et le carter (20). La platine recevant la pression (40) est reliée à l'élément coulissant (30) de façon à pouvoir comprimer le corps élastique.
PCT/JP2003/007305 2002-06-07 2003-06-09 Appareil a buse coulissante WO2003103878A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003242122A AU2003242122A1 (en) 2002-06-07 2003-06-09 Sliding nozzle apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002-167333 2002-06-07
JP2002167333 2002-06-07

Publications (1)

Publication Number Publication Date
WO2003103878A1 true WO2003103878A1 (fr) 2003-12-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2003/007305 WO2003103878A1 (fr) 2002-06-07 2003-06-09 Appareil a buse coulissante

Country Status (2)

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AU (1) AU2003242122A1 (fr)
WO (1) WO2003103878A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105665690A (zh) * 2016-03-03 2016-06-15 无锡双木机械科技有限公司 一种安全高效门式自动加压滑动水口机构
CN105665691A (zh) * 2016-03-03 2016-06-15 无锡双木机械科技有限公司 一种曲臂单开高效自动加压滑动水口机构
WO2016116197A1 (fr) * 2015-01-23 2016-07-28 Refractory Intellectual Property Gmbh & Co. Kg Fermeture à tiroir pour récipient contenant un bain de fusion métallique

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54100923U (fr) * 1977-12-22 1979-07-16
JPS62279071A (ja) * 1986-05-28 1987-12-03 Kurosaki Refract Co Ltd スライデイングノズル装置
JPH08117985A (ja) * 1994-10-28 1996-05-14 Sumitomo Jukikai Chiyuutan Kk スライドゲ−トの面圧負荷装置
JPH10128525A (ja) * 1996-10-28 1998-05-19 Nkk Corp 溶融金属の注湯量制御装置
JPH11254126A (ja) * 1998-03-13 1999-09-21 Sumitomo Jukikai Chutan Kk スライドゲートの面圧負荷装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54100923U (fr) * 1977-12-22 1979-07-16
JPS62279071A (ja) * 1986-05-28 1987-12-03 Kurosaki Refract Co Ltd スライデイングノズル装置
JPH08117985A (ja) * 1994-10-28 1996-05-14 Sumitomo Jukikai Chiyuutan Kk スライドゲ−トの面圧負荷装置
JPH10128525A (ja) * 1996-10-28 1998-05-19 Nkk Corp 溶融金属の注湯量制御装置
JPH11254126A (ja) * 1998-03-13 1999-09-21 Sumitomo Jukikai Chutan Kk スライドゲートの面圧負荷装置

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016116197A1 (fr) * 2015-01-23 2016-07-28 Refractory Intellectual Property Gmbh & Co. Kg Fermeture à tiroir pour récipient contenant un bain de fusion métallique
US10471505B2 (en) 2015-01-23 2019-11-12 Refractory Intellectual Property Gmbh & Co. Kg Sliding closure for a container containing molten metal
RU2709882C2 (ru) * 2015-01-23 2019-12-23 Рефрактори Интеллектуал Проперти ГмбХ энд Ко. КГ Шиберный затвор контейнера, предназначенного для содержания расплавленного металла
CN105665690A (zh) * 2016-03-03 2016-06-15 无锡双木机械科技有限公司 一种安全高效门式自动加压滑动水口机构
CN105665691A (zh) * 2016-03-03 2016-06-15 无锡双木机械科技有限公司 一种曲臂单开高效自动加压滑动水口机构

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Publication number Publication date
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AU2003242122A8 (en) 2003-12-22

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