EP0325646A1 - Verschlusskörper für einen schiebeverschluss an einem metallschmelze enthaltenden gefäss sowie schiebeverschluss mit einem derartigen verschlusskörper - Google Patents
Verschlusskörper für einen schiebeverschluss an einem metallschmelze enthaltenden gefäss sowie schiebeverschluss mit einem derartigen verschlusskörperInfo
- Publication number
- EP0325646A1 EP0325646A1 EP88907280A EP88907280A EP0325646A1 EP 0325646 A1 EP0325646 A1 EP 0325646A1 EP 88907280 A EP88907280 A EP 88907280A EP 88907280 A EP88907280 A EP 88907280A EP 0325646 A1 EP0325646 A1 EP 0325646A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- closure body
- closure
- sliding
- flow channel
- body according
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
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
- B22D41/28—Plates therefor
Definitions
- the invention relates to a closure body, in particular a sliding closure body, for a sliding closure on a vessel containing molten metal, which has at least one flow channel and can be used interchangeably in a fixed or adjustable support frame.
- Sliding closure bodies of so-called linear slides are usually plate-shaped and each have a flow channel, the flow channel in the open position of the slide plate being aligned with the flow channel of a base plate fixedly arranged on the bottom of the vessel. Because when moving the slide plate in a rule and / or
- rotary slide valves it is known to provide more than one, for example three parallel flow channels, some of which also have different cross sections, in the slide plate in the circumferential distance, each opening into both the upper working surface and the lower surface of the rotary slide plate.
- Flow channels can be brought into the functional position one after the other by turning the slide plate. This solution requires a relatively large plate body, since a safe closing surface area must remain available between the individual flow channels.
- Sector-shaped closure plates for pivoting slide valves with two flow channels arranged parallel to one another at a pivoting distance from one another are also known, both of which likewise open into the upper working surface and the lower surface of the pivoting slide plate.
- the closing surface areas are - with respect to a swivel axis - radially within the flow channels, so that such slide plates must also have relatively large dimensions and both a swivel drive and a drive for linear displacement are required.
- the closure body is penetrated by at least two flow channels, the openings of which lie in different, preferably flat surfaces, in particular different working surfaces of the closure body.
- Each flow channel has its own work surface.
- the flow channels therefore do not run parallel, as in the prior art, and therefore do not open into the same working or surface of the closure body, but each flow channel has its at least one, preferably two separate working surface (s).
- the flow channels are thus at an angle to each other and their openings on two opposite surfaces of the closure body, at least one of the surfaces forming a working surface of the closure body.
- the closure body according to the invention can perform both the functions of a conventional slide plate and those of a conventional base plate, it is primarily intended to be used in the slide of a slide closure, since, as already mentioned, the wear of slide plates is significantly greater than that vcn bottom plates, so that the advantages of the invention when using the closure body in the slide form stronger than with a fixed arrangement in the bottom region of the vessel containing the molten metal.
- the closure body After wear of the at least one work surface and the associated flow channel in its edge region, the closure body, in particular when it is used in the slide of a sliding lock, can be turned or turned so that a new flow channel with its own undamaged work surface is used.
- the flow channel opens with its openings on both sides into a working surface of the closure body, so that each flow channel can be used in two directions. It is also possible to give the flow channels different dimensions, so that, depending on the desired casting conditions, a narrower or wider flow channel can be selected, which is also assigned its own work surface.
- a closure body according to the invention can thus have at least twice as many flow channels with their own work surface or work surfaces with a substantially identical length and width dimensions than a conventional closure plate. Accordingly, the service life of such a closure body can be multiplied without significantly increasing its dimensions.
- the two openings of a flow channel are preferably located in mutually parallel surfaces, in particular work surfaces, so that one sliding flow closure arrangement can be replaced by another by simply changing the position of the closure body.
- the closure body has an essentially prismatic, for example essentially cuboid, or cylindrical shape. If the closure body is cuboid, it can, for example, have three flow channels; if it has a hexagonal cross section, it can, for example, have four flow channels, which in some cases open into their own work or surfaces.
- a flow channel is rotationally and / or mirror-symmetrical to another flow channel.
- the flow channels are then arranged symmetrically in such a way in the closure body that the one flow channel comes to lie in its support frame in place of the other flow channel by merely turning and / or rotating the closure body. This ensures that no changes to the slide closure mechanism with regard to the position and / or the arrangement and / or the slide drive have to be made, since a new one Flow channel with its own undamaged work surface serves exactly in the place of the previously used worn flow channel with its worn work surface.
- the invention also proposes that the surfaces receiving the openings of the flow channels be essentially rectangular, possibly rounded or beveled at their ends, and that the end faces be of essentially square, hexagonal or round shape.
- the (elongated) essentially rectangular configuration of a work surface has the purpose of providing a closing surface region of the required length by eccentrically arranging the flow channel without an excessive plate size being required.
- the square, hexagonal or round shape of the end faces, into which no flow channel opens, on the other hand ensure that the closure body is as compact as possible.
- the surfaces receiving the openings of the flow channels have essentially the same size and shape. In this way it can be achieved that no change in the support frame is required when turning and / or rotating the closure body if a new flow channel is to be brought into the functional position.
- the axes of the flow channels are preferably substantially perpendicular to one another, as are the associated working or surfaces of the two or three flow channels.
- the closure body has hexagonal
- the flow channels are preferably at an angle of 60 to one another in order to distribute the stress on the closure body as evenly as possible.
- a favorable utilization of the geometric conditions of the closure body can be achieved if the respective flow channel is located in the closing surface area assigned to the other flow channel.
- the closure body is made, for example, of monolithic ceramic material, it can also be ruled out that the functionality of the other flow channel is impaired by the formation of cracks in the vicinity of the flow channel already used.
- the flow channels cross each other and the unused channel sections are closed with blind plugs, for example made of high-quality refractory material such as oxide.
- blind plugs for example made of high-quality refractory material such as oxide.
- metal reinforcements connected to rotary and / or swivel bearing elements, e.g. also be embedded in it.
- the primary consideration is to design the closure body as a monolithic block made of ceramic material.
- closure body is designed as a metal cage with plate and / or sleeve-shaped attachments or inserts.
- the cage then has corresponding recesses for the optional use of such plate and / or sleeve-shaped attachments or inserts, which can take over the functions of a slide plate.
- closure body can also be accommodated in a metal frame from the outset, so that the closure body is replaced together with this frame.
- the closure body according to the invention can thus be pressed and fired in a conventional manner from a ceramic refractory material, but can also be cast and / or pressed from refractory refractory concrete. Since the flow channels should all be of substantially the same length, the closure body, if it is, for example, cuboid, is as wide as it is high. The length of the flow channels in a closure body can therefore expediently be so large that an interchangeable spout, as is required on the underside of conventional slide plates, is unnecessary. In such a case, the closure body according to the invention is, for example, approximately twice as thick or high like a conventional slide plate.
- Closure bodies according to the invention can be used both with linear and with rotary or pivoting slides.
- the closure body can also be completely or partially permeable in order to allow gas flushing through the plate body in order to prevent freezing or formation of deposits and to seal off from the outside atmosphere.
- the invention further relates to a slide closure for a vessel containing molten metal with a closure body, as has been explained in more detail above.
- This is characterized in particular by the fact that the closure body serving as a sliding closure body is mounted both longitudinally and rotatably. In this way, the various flow channels can be easily brought into their respective working positions.
- the sliding closure can be opened and closed in an advantageous manner, for example by pushing it back and forth, and by regulating the pouring stream by pushing it back and forth in the other direction.
- the service life of the respective closure body is increased even further because different wear edges of the flow channels are then exposed to the molten metal jet during the regulating and / or closing process.
- the closure body can advantageously have end and / or longitudinal cutouts for the engagement of pins of the support frame or the closure body front and / or longitudinal pins for engagement in recesses of the support frame, so as to simplify the pivoting of the closure body. It may be necessary to adjust the actuation stroke for the slide after the rotation of the closure body to the new conditions.
- the closure body In order to release the closure body quickly and easily for the desired rotation, it can be accommodated in a swiveling housing, optionally with its supporting frame. In order to ensure the tightness of the sliding closure with simple means, the closure body can also be pressed against at least one working surface by means of support springs against a counter surface, preferably the working surface of a base plate.
- the base plate can also be held in a swiveling frame.
- FIG. 2 shows such a closure body inserted in a supporting frame of a slide
- FIG. 3 schematically, in vertical longitudinal section, a sliding closure having the invention
- FIG. 4 schematically shows a section A-B of the sliding closure shown in FIG. 3,
- FIG. 5 pulled apart in an oblique view, another embodiment of a closure body according to the invention
- Figure 6 shows schematically in longitudinal section a sliding closure with a closure body according to Figure 5
- Figure 7 schematically shows a section CD of the sliding closure shown in Figure 6.
- the closure body 1 of Figure 1 is a refractory ceramic monolithic block, which is to take over the functions of a conventional closure plate, in particular a slide plate, in a slide closure on a vessel containing molten metal.
- the cuboidal closure body 1 has two mutually opposite parallel surfaces 9 and 10, which can both be working surfaces of the closure body 1, and two perpendicular, likewise parallel surfaces 11 and 12, which can also be working surfaces of the closure body 1.
- the surfaces 9 to 12 are all of the same size and shape.
- the closure body 1 thus has the same height h as width b.
- the side surfaces 13 and 14 provided on the ends of the narrow sides of the two pairs of surfaces 9, 10 and 11, 12 are square.
- the closure body 1 is penetrated by two spaced-apart flow channels 2 and 3.
- the axes of the flow channels 2, 3 are each perpendicular to the longitudinal axis of the closure body 1, but also perpendicular to each other.
- the openings 5, 6 and 7, 8 open into the surface 9, 10 and 11, 12.
- the flow channels 2, 3 are rotationally and mirror-symmetrically in the closure body 1 arranged that, for example, by rotating the closure body 1 about its longitudinal axis by 90 ° and turning the closure body 1 about its vertical central axis by 180 ° in the slide closure of the flow channel 3 in the place of
- Closure body material which is assigned to that of the respective other flow channel 3, 2
- such a wear body 1 is inserted in a support frame 4, which in the case shown consists of an inner tenter part and an outer support part.
- the latter has a recess into which the structural unit of wear body 1 and tensioning frame part can be inserted, for example while supporting against support springs (not shown).
- the support frame part also has an engagement opening 19 for a slide drive 27.
- the flow channels 2 and 3 can be lined with sleeve-shaped, wear-resistant ceramic inserts 16.
- Such a lining is made of relatively high quality material always useful when the remaining part of the closure body 1 is made of a lower quality material, for example a refractory refractory concrete.
- the closure body 1 of the slide closure shown in Figures 3 and 4 takes over the functions of a slide plate.
- the closure body 1 is, as can be seen from the sectional view in FIG. 4, not purely cuboid, but bevelled on its longitudinal edges.
- the closure body 1 has in its front side surfaces 13 and 14 a recess 17, in which pins 18 are received for rotatable mounting in bearing pieces of the support frame 4.
- the slide drive 27 which engages with an actuating rod 28 in the engagement opening 19 of the support frame 4, the unit comprising the support frame 4 and the closure body 1 can be displaced linearly relative to the base plate 24 on rails 29.
- the stroke for the possibility of displacement is such that both the flow channel 2 and - after rotation of the closure body 1 about its longitudinal axis - the flow channel 3 can be moved into the working position under the flow opening 30 of the base plate 24.
- the slides 29 are part of a housing 20 which is pivotally mounted about an axis 31 on a floor-mounted holder 32 of the vessel containing molten metal. After pivoting the housing 20 with the support frame 4 and the closure body 1, the closure body 1 can be removed from the support frame 4. On the other hand, the base plate 24 is then also accessible for easy replacement.
- a closure body 1 in the embodiment of a closure body 1 according to the invention shown in FIG. 5, it consists of an essentially cylindrical cage 21.
- the cage 21 has in its jacket a number of cutouts 33, in the illustrated case 4 in the number in which plate-shaped attachments 15 with a Flow channel 2 with an opening 5 and a surface 9 serving as a working surface can be used.
- the cage 21 carries pins 18 for the rotatable reception in bearing parts 25, which in turn are supported on the supporting frame 4 by means of support springs 22, as can be seen in FIGS. 6 and 7.
- FIG. 6 and 7 In particular, FIG.
- FIG. 6 also shows how the plate-shaped attachment 15 made of refractory material can be combined with a sleeve-shaped insert 16, which leads to an opening 6 in the recess 33 opposite the plate-shaped attachment 15.
- the plate-shaped attachment 15 and the sleeve-shaped insert 16 can also be formed in one piece.
- FIG. 6 a similar combination of perpendicular to each other is created in this way Flow channels 2 and 3 as in the embodiment of Figure 3 with a monolithic ceramic closure body 1.
- the embodiment according to Figures 6 and 7 has the advantage that the cage 21 can be reused many times and only the plate-shaped attachments 15 and the sleeve-shaped inserts 16 are replaced when worn Need to become.
- FIG. 7 also shows the tensioning screws 33 with which the housing 20 of the slide, which can be pivoted about the axis 31 from the holder 32, is fastened to the end of the vessel containing the molten metal at the end opposite the axis 31 under load of the support springs 22.
- the possible stroke of the slide formed from the support frame 4 and the closure body 1 is dimensioned such that both the flow channel 2 and the flow channel 3 can be moved into the working position, with the required displacement possibility over the closing surface area of the plate-shaped attachment 15.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT88907280T ATE67107T1 (de) | 1987-08-07 | 1988-07-16 | Verschlusskoerper fuer einen schiebeverschluss an einem metallschmelze enthaltenden gefaess sowie schiebeverschluss mit einem derartigen verschlusskoerper. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3726312 | 1987-08-07 | ||
DE19873726312 DE3726312A1 (de) | 1987-08-07 | 1987-08-07 | Verschlusskoerper fuer einen schiebeverschluss an einem metallschmelze enthaltenden gefaess sowie schiebeverschluss mit einem derartigen verschlusskoerper |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0325646A1 true EP0325646A1 (de) | 1989-08-02 |
EP0325646B1 EP0325646B1 (de) | 1991-09-11 |
Family
ID=6333292
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88907280A Expired - Lifetime EP0325646B1 (de) | 1987-08-07 | 1988-07-16 | Verschlusskörper für einen schiebeverschluss an einem metallschmelze enthaltenden gefäss sowie schiebeverschluss mit einem derartigen verschlusskörper |
Country Status (5)
Country | Link |
---|---|
US (1) | US4991754A (de) |
EP (1) | EP0325646B1 (de) |
AT (1) | ATE67107T1 (de) |
DE (2) | DE3726312A1 (de) |
WO (1) | WO1989001373A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3726312A1 (de) * | 1987-08-07 | 1989-02-16 | Didier Werke Ag | Verschlusskoerper fuer einen schiebeverschluss an einem metallschmelze enthaltenden gefaess sowie schiebeverschluss mit einem derartigen verschlusskoerper |
US5762256A (en) * | 1995-08-28 | 1998-06-09 | United States Surgical Corporation | Surgical stapler |
WO2003000329A2 (en) | 2001-06-20 | 2003-01-03 | Inhale Therapeutic Systems, Inc. | Flow regulator for aerosol drug delivery device and methods |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US134374A (en) * | 1872-12-31 | Himan frank | ||
DE2102056C3 (de) * | 1971-01-16 | 1975-10-23 | Heinz Fritz Dipl.-Ing. 7570 Baden-Baden Reichenkron | Anordnung einer fahrzeuggebundenen Wasch- und Desinfektionsanlage für Abfallbehälter |
GB1380121A (en) * | 1972-04-08 | 1975-01-08 | Dyson Ltd J J | Containers for molten metal |
JPS5141974B2 (de) * | 1973-02-12 | 1976-11-12 | ||
JPS5477237A (en) * | 1977-11-28 | 1979-06-20 | Shinagawa Refractories Co | Fannshaped multiihole slideespray brick and sliding nozzle apparatus |
JPS5533823A (en) * | 1978-08-29 | 1980-03-10 | Kurosaki Refract Co Ltd | Plate in sliding nozzle device |
DE2840171C3 (de) * | 1978-09-15 | 1981-06-04 | Stahlwerke Röchling-Burbach GmbH, 6620 Völklingen | Verschlußvorrichtung für den Bodenausguß von Gießpfannen |
CA1251642A (en) * | 1983-11-02 | 1989-03-28 | Kazumi Arakawa | Molten metal discharging device |
DE3345539C1 (de) * | 1983-12-16 | 1985-07-18 | Didier-Werke Ag, 6200 Wiesbaden | Feuerfeste Verschlußplatte für Schieberverschlüsse |
US4801055A (en) * | 1983-12-16 | 1989-01-31 | Didier-Werke Ag | Method of repairing or renewing a worn refractory plate of a sliding closure unit |
DE3512796C1 (de) * | 1985-04-10 | 1986-02-06 | Stopinc Ag, Baar | Schiebereinheit in einem Schiebeverschluss |
JPS6138774A (ja) * | 1985-06-13 | 1986-02-24 | Kurosaki Refract Co Ltd | スライデイングノズル装置におけるプレ−ト使用法 |
DE3726312A1 (de) * | 1987-08-07 | 1989-02-16 | Didier Werke Ag | Verschlusskoerper fuer einen schiebeverschluss an einem metallschmelze enthaltenden gefaess sowie schiebeverschluss mit einem derartigen verschlusskoerper |
-
1987
- 1987-08-07 DE DE19873726312 patent/DE3726312A1/de active Granted
-
1988
- 1988-07-16 AT AT88907280T patent/ATE67107T1/de not_active IP Right Cessation
- 1988-07-16 US US07/294,626 patent/US4991754A/en not_active Expired - Fee Related
- 1988-07-16 DE DE8888907280T patent/DE3864810D1/de not_active Expired - Fee Related
- 1988-07-16 EP EP88907280A patent/EP0325646B1/de not_active Expired - Lifetime
- 1988-07-16 WO PCT/EP1988/000644 patent/WO1989001373A1/de active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO8901373A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE3726312A1 (de) | 1989-02-16 |
DE3726312C2 (de) | 1989-11-02 |
EP0325646B1 (de) | 1991-09-11 |
DE3864810D1 (de) | 1991-10-17 |
US4991754A (en) | 1991-02-12 |
ATE67107T1 (de) | 1991-09-15 |
WO1989001373A1 (en) | 1989-02-23 |
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