EP0729797B1 - Vorrichtung und Verfahren zum automatischen Ankuppeln einer Giesspfanne an eine oder mehrere Gasleitungen - Google Patents
Vorrichtung und Verfahren zum automatischen Ankuppeln einer Giesspfanne an eine oder mehrere Gasleitungen Download PDFInfo
- Publication number
- EP0729797B1 EP0729797B1 EP96101956A EP96101956A EP0729797B1 EP 0729797 B1 EP0729797 B1 EP 0729797B1 EP 96101956 A EP96101956 A EP 96101956A EP 96101956 A EP96101956 A EP 96101956A EP 0729797 B1 EP0729797 B1 EP 0729797B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coupling
- gas
- gas outlet
- closing element
- coupling part
- 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.)
- Expired - Lifetime
Links
- 238000010168 coupling process Methods 0.000 title claims abstract description 298
- 230000008878 coupling Effects 0.000 title claims abstract description 297
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 296
- 238000000034 method Methods 0.000 title claims abstract description 6
- 238000005266 casting Methods 0.000 title description 2
- 238000007789 sealing Methods 0.000 claims description 15
- 239000012535 impurity Substances 0.000 claims description 13
- 230000007704 transition Effects 0.000 claims description 7
- 241000397426 Centroberyx lineatus Species 0.000 claims 1
- 230000000284 resting effect Effects 0.000 claims 1
- 239000007789 gas Substances 0.000 description 177
- 239000000356 contaminant Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000011109 contamination Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
- B22D1/002—Treatment with gases
- B22D1/005—Injection assemblies therefor
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/4606—Lances or injectors
- C21C5/462—Means for handling, e.g. adjusting, changing, coupling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/0318—Processes
- Y10T137/0402—Cleaning, repairing, or assembling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/4238—With cleaner, lubrication added to fluid or liquid sealing at valve interface
- Y10T137/4245—Cleaning or steam sterilizing
Definitions
- the present invention relates to an apparatus and a method for automatic coupling of a ladle to one or more gas pipes 25 according to the preamble of claims 1 and 25, respectively.
- the liquid metal is flushed with gases that pass through a porous area in the bottom of the ladle. The reaction products generated rise to the surface of the Melt and are taken up by a slag.
- the ladle is inserted into a holding device and connected to the gas supply lines there.
- This connecting the gas feeds should be done as automatically as possible, given the environment, the risk of accident for a worker is very high.
- patent EP-A-0 320 841 describes a device for connection a ladle to a gas pipe, one centrally in the lower Coupling part arranged valve when assembling the two coupling parts opens automatically.
- German patent LU-87 868 describes a device with a Tandem valve, which is the simultaneous coupling of the ladle to two different gas supplies allowed. It is in the lower coupling part a first central outlet for the first gas is provided. The second gas is through several circular outlets distributed around this central inlet guided. In the upper part, the corresponding inlets are distributed similarly, whereby between the central inlet and the partial inlets distributed around it an annular seal is arranged when the device is coupled prevents the two gases from mixing. Outside around the partial inlets another seal runs, which the partial transitions radially outwards seal.
- the known devices In a harsh environment, as seen in the metallurgical industry Given dust and heat, the known devices have the disadvantage on that the lower coupling part attached to the receiving device uncoupled device exposed to contaminants in the environment is. These contaminants are deposited on the surface of the coupling part and lead over time to the fact that the coupling device is no longer seals properly since the seals provided are no longer properly rest on the sealing surfaces. Furthermore, the deposited Impurities Clogged gas and gas outlets.
- the object of the present invention is therefore a coupling device for several gases, which are largely self-cleaning is.
- a device for automatic coupling of a ladle to one or more gas pipes which is a first coupling part connected to a gas supply and a second coupling part attached to the ladle, wherein in several gas outlets in the first coupling part and in the second coupling part one or more gas inlets are arranged. Every single one Gas outlet through an associated closing element in the first coupling part closable, this closing element when coupling to the second Coupling part, for example, is pressed into the first coupling part and releases the corresponding gas outlet Closing unit is characterized in particular by the fact that these closing elements are designed so that when coupling the two coupling parts, before sealing the two coupling parts onto each other, first a single gas outlet is released before the other gas outlets be released.
- the premature opening of one of the closing elements causes a gas flow the opened gas outlet radially from the gas outlet through the gap flows outwards between the first and the second coupling element. Because the gas supply lines are under high pressure, and the gap between the both coupling elements is quite small when opening the closing element, the velocity of the gas flow is correspondingly high, so that impurities, which settles on the surface of the coupling elements have to be blown away from the coupling surfaces. Since this is with every coupling of a ladle happens in short intervals, there is no incrustation of the deposits, so that they can flow remain, and be carried away by the gas flow.
- opening only one of the gas outlets at first plays an important role. Indeed, when everyone opens at the same time gas outlets arranged in a circle around the axis in the middle between the Outlets a vortex. The impurities whirled up in it are not from the space between the two coupling parts blown out, but lie on the first coupling part when coupling from. As a result, the two coupling parts can no longer be placed on top of one another be that the respective surfaces lie against each other, and the coupling device is leaking.
- This characteristic has an effect when the two coupling parts are uncoupled also advantageous.
- the two coupling parts first moved far apart that there is no longer a sealing connection.
- the gas outlets are still open. That by the individual Gas escaping from gas outlets cleans them of impurities and flushes them this contamination in the space between the two coupling parts. If the two coupling parts are further apart, close all gas outlets except one, causing the impurities to are entrained radially outwards between the two coupling parts will. Only then are the two coupling parts separated so far that the last gas outlet is also closed. This prevents Impurities get into the gas outlets and settle here.
- This gas outlet can then, for example, on the axis of the clutch assembly be arranged.
- the gas outlets are conical and can be positively closed by a cone-shaped closing element, wherein the conical closing element in the first coupling part axially is arranged displaceably and in the closed position from the conical Gas outlet protrudes so that when coupling through the second Coupling part is pressed inwards into the first coupling part.
- the cone shape of the gas outlets and the closing elements causes closed gas outlet, this is positively closed. Make it up itself on the boundary line between the surface of the coupling part and the Surface of the closing element no deep grooves in which there are contaminants preferably set. This will prevent contaminants from entering prevented in the gas outlet.
- the conical shape of the two elements causes Pushing the closing element into the first coupling part, the gap between the closing element and the gas outlet increases, the further the closing element is pressed into the coupling part. This can cause contamination, which when opening the gas inlet in the gap that forms penetrate, do not get stuck here, but are used by the Pumped gas flow out of the gas inlet.
- Each of the closing elements is preferably in the corresponding gas outlet against elastic means, for example a coil spring, axially displaceable, wherein the elastic means the closing element when the device is uncoupled press tightly against the conical gas outlet.
- elastic means for example a coil spring, axially displaceable
- Each of the conical closing elements preferably has an annular one Shoulder surface in which an annular soft seal attached in this way is that the annular soft seal on an annular seat, which surrounds the conical gas outlet, rests sealingly when that conical closing element in a form-fitting manner in the conical gas outlet sits.
- This conical shape causes the two coupling parts to separate when coupling center automatically, which means that the gas outlets and gas inlets Coupling are exactly opposite axially.
- the opening angle of the conical trough is larger than the opening angle of the first coupling part, the space increases between the two coupling parts radially outwards. This will make it Blow out the impurities when opening the first gas inlet relieved, since the impurities do not stick to the outside can.
- the cone of the first coupling part has a spherical tip, and is the bottom of the conical trough of the second coupling part formed spherical to the spherical To contact the tip of the first coupling part.
- This spherical design of the two adjacent parts allows to compensate for the tilting of the ladle compared to the vertical, and still a positive fit of the second coupling part on the ensure first.
- the second coupling part comprises a coupling sleeve and a coupling body
- the coupling body is axially displaceably mounted in the coupling sleeve
- elastic means such as a coil spring
- the coupling body By prestressing the resilient means, the coupling body is at Coupling to the first coupling part initially with the spring force of the elastic Means pressed against the surface of the first coupling part. Then the coupling body moves axially into the coupling sleeve. in the Contrary to a one-piece design of the second coupling part, is thereby the blow when the two coupling parts are placed on top of each other cushioned, which protects the entire device from bumps.
- one of the inlets in the second coupling part is preferred connected to a chamber above the coupling body, so that when the device is coupled, the one building up in the chamber Gas pressure is a force acting on the coupling body in the coupling direction exercises, and so the contact pressure of the ring seals on the surface of the first coupling part is increased.
- each gas inlet is preferably in one run the second coupling part screw-in insert, in which one Ring seal is used.
- an annular seal in a groove e.g. a dovetail groove to attach the gas inlet is not more in a flat surface perpendicular to the axis of the coupling body, but is curved over the conical surface. This groove can therefore not be turn more out of the coupling body, but must be in another complicated procedures.
- each inlet consists of the insert several holes, which are circular around the point of the corresponding Closing element are arranged.
- one gas inlet is made less than gas outlets in the first coupling part
- the closing elements are designed such that when coupling of the two coupling parts first the gas outlet, which no corresponding Gas inlet is assigned to be released before the other gas outlets released is the gas outlet, which has no corresponding gas inlet is assigned a closing element which can be displaced axially in the gas outlet, assigned in such a way that this gas outlet is completely coupled and completely coupled device is closed and during the coupling process is released.
- an insert can be made in the gas outlet has an axial bore, and the closing element is cylindrical be and have two end sections and a tapered middle section, the diameter of the bore in the insert is chosen so that the End portions of the closing element are slidable therein.
- a radial seal of this type can preferably be used in the bore of the insert be attached that the gas outlet sealed with the closing element is when the closing element is in a position in which one of the both end sections abuts the radial seal, and the gas outlet is released when the closing element is in a position in which the tapered center piece of the closing element is at the level of the radial seal located.
- the cylindrical closing element can be an annular one Have shoulder surface attached in such a way in an annular soft seal is that the annular soft seal on an annular seat, which surrounds the bore in the insert, lies sealingly when that cylindrical closing element entirely from the cylindrical gas outlet protrudes.
- the closing element is in the gas outlet axially displaceable against elastic means, for example a coil spring wherein the elastic means the closing element when the device is uncoupled so displaced in the gas outlet that the annular shoulder surface is pressed sealingly against the ring-shaped seat of the insert.
- elastic means for example a coil spring
- the gas outlet to which no corresponding gas inlet is assigned is, in a preferred embodiment via a connecting line with the Gas supply connected to one of the other gas outlets.
- FIG. 1 and 2 show a coupling device according to the invention
- 3 shows an enlarged section of this coupling device represents. It consists of a lower, first coupling part 10, and one upper, second coupling part 12.
- the second coupling part 12 is preferred firmly connected to the ladle, while the first coupling part 10 to the Gas supply lines are connected and in the cradle for the ladle is arranged so that it is perpendicular to one plane an axis 0 through the coupling device in two mutually perpendicular Directions is displaceable. This can cause inaccuracies in the axial Alignment of the upper coupling part attached to the ladle the lower coupling part can be compensated.
- the second coupling part 12 consists of a coupling sleeve 14, which after is closed at the top by a cover 16, and one axially therein Slidably arranged coupling body 18.
- This preferably has three coaxial cylindrical sections with three different diameters, the diameter of the upper section is smallest and the Diameter of the lower section is largest.
- Coaxial to the top Part of a coil spring 20 is attached, which extends downwards the projection 22 formed by the first increase in diameter supports the coupling body 18.
- the spring 20 is supported upwards a paragraph 24 executed in the coupling sleeve 14. On this paragraph 24, the upper section of the coupling body 18 is guided and through a Ring seal 26 sealed while the middle section of the coupling sleeve 14 is performed.
- the lower section of the coupling body 18 is in a sleeve 28 attached to the bottom of the coupling sleeve 14 fitted.
- This sleeve essentially has a protective function and prevents it penetration of contaminants between the coupling sleeve 14 and that middle section of the coupling body 18.
- the bottom 34 is preferably rounded spherical.
- three gas passage bores 36 are parallel to the axis 0 in the Coupling body 18 executed, each at its lower end in a Widening opens, which is threaded on the inside and into the an insert 38 can be screwed in with the gas inlets. Up out two of the three gas passage holes 36 open via a telescopic connector 40 in the upper cover 16, from where lines (not shown) lead to the porous area of the ladle.
- the third of the Gas passage bores open into a chamber 42 which is inside the coupling sleeve 14 formed between the cover 16 and the stop plate 30 becomes. Through a bore 44 in the cover 16, this is in turn a Pipe connected to the porous area of the bottom of the ladle.
- each insert 38 has several circular shapes Bores arranged around the axis of the respective gas passage bore 36 46 has. Around these holes 46 is at the lower end of the Inserts 38 each have an annular seal 48 in a dovetail groove 50 arranged. This seals the with coupled coupling parts Transition between the gas outlets in the first coupling part and the Gas inlets in the second coupling part radially outwards.
- the first coupling part 10 has three gas outlets 52, which are placed one on top of the other Coupling parts the gas passage bores 36 in the second Axially opposite coupling part.
- the gas outlets 52 are at the bottom connected to gas feeds 54 (Fig.1 and Fig.2), via which the various Purge gases are introduced.
- the gas outlets 52 are in their upper part conical and by an automatically opening To close the closing element 56 in a form-fitting manner.
- Each of the closing elements 56 has an annular shoulder at the bottom 58, in which an annular soft seal 60 in a dovetail groove 62 is attached.
- This seal 60 sits on an annular seat 64, which surrounds the conical gas outlet 52, and seals the Gas outlet additionally off when the conical closing element 56 is form-fitting sits in the conical gas outlet 52.
- the closing elements 56 are guided downwards by guide elements 66 extended, which have a cross-shaped horizontal cross section and which the locking arrangement is tilt-free in one in the gas outlets Guide 52 attached sleeve 68. Coaxial to the guide elements 66 a coil spring 70 is attached, which is down against the Sleeve 68 supports and upwards against the closing element 56, whereby this in the uncoupled state sealing against the corresponding Gas outlet 52 is pressed.
- the closing elements 56 are designed such that their tips when uncoupled Coupling parts, i.e. if the closing elements 56 form-fitting in the Sit gas outlet 52 and shoulders 58 are pressed against their seat 64, protrude from the surface of the first coupling part, one of the Closing elements 56 protrude further from the first coupling part than that by the others. This is preferably the closing element when coupled together Device in axial extension with that with the chamber 42nd connected gas inlet of the second coupling part.
- the coupling device described is in the uncoupled state shown.
- the coupling body 18 is here by the coil spring 20 in the coupling sleeve 14 is pressed down and is by the stop plate 30 held in this.
- the closing elements 56 under the influence of the coil springs 70 and the one acting from below Gas pressure pressed against their gas outlet and prevent thereby causing gas to flow out through the feeds 54 becomes.
- the two coupling parts become closer by lowering the ladle merged, first pushes the farthest out of the lower coupling part outstanding locking element against the one above it Insert 38 and is against the pressing force of the spring 70 in the first Coupling part pushed in and opened. This happens before the Ring seal 48 in inlet 36 on the surface of the first coupling member is present.
- the one flowing upward out of the open gas outlet 52 Gas is deflected at the bottom 34 of the trough 32 and then flows radially in all directions through the gap between the second and the first Coupling part is formed. Since the gas supply lines 54 are under high pressure stand, and the gap between the two coupling elements when opening of the closing element 56 is quite small, the speed of the gas flow accordingly large, so that impurities, e.g.
- opening only one of the gas outlets at first plays an important role. Indeed, when everyone opens at the same time gas outlets arranged in a circle around the axis in the middle between the Outlets a vortex. The impurities whirled up in it are not from the space between the two coupling parts blown out, but lie on the first coupling part when coupling 10 from. As a result, the two coupling parts can no longer do so be placed on top of each other that the ring seals 48 on the surface of the first coupling part 10 rest, and the coupling device leaky.
- the ladle is removed from the cradle lifted out, the closing element 56 itself under the Spring force of the coil spring 70 closes and seals.
- FIG. 5 and 6 show a further preferred embodiment of the invention Coupling device shown. You can see in the first coupling part 10 'an additional gas outlet 72, which is on the axis 0 of the coupling device is arranged. Opposite him is in the second coupling part 12 ' no gas inlet performed, so that the gas outlet 72 only functions met, the surfaces of the two coupling parts from contamination clean.
- the gas outlet 72 is axially in the gas outlet Slidable closing element 74 (see also Fig.7) provided that at uncoupled device closes the gas outlet 72 (Fig.7 c), which during the coupling releases the gas outlet for a certain time (Fig. 7 b) and that after placing the two coupling parts on top of each other, the gas outlet 72 seals again.
- the closing element 74 is designed such that it releases the gas outlet 72 before the gas outlets 52 open.
- the closing element 74 has a cylindrical shape, wherein the central section 76 has a smaller diameter than that two end sections.
- the gas outlet 72 is at one end Insert insert 77, in which a cylindrical bore is made, the Inner diameter is chosen so that the end portions of the closing element 74 can be shifted precisely in it.
- a radial seal 78 is attached to the upper end around the bore in a groove, which the gas outlet 72 against the upper and lower end section of the closing element 74 can seal (Fig. 7 a, c). Is the closing element in an intermediate position, i.e. when the tapered centerpiece 76 is in height the radial seal 78 (Fig. 7 b), the gas between the tapered Middle section 76 of the closing element 74 and the radial seal 78 flow through and the gas outlet is released.
- the closing element 74 has an annular shoulder 80 at the bottom, in which an annular soft seal 82 in a dovetail groove is appropriate. This seal 82 sits on an annular seat 84, which surrounds the bore in the insert 77 and seals the gas outlet additionally, when the closing member 74 is in its upper, the gas outlet 72 sealing position is (Fig.7 c).
- the closing element 74 is guided downwards by a guide element 86 extended, the locking arrangement tilting in a down in the Guide the gas outlet 72 in the hole 88.
- a coil spring 90 is attached, which counteracts downward supports the bottom of the gas inlet and up against the closing element 74 presses, which this in the disengaged state with his Shoulder 80 is pressed sealingly against the annular seat surface 84.
- the gas outlet 72 Since the gas outlet 72 only functions, the surfaces of the two There is no need to clean the coupling parts of contaminants to connect its own gas supply 54. For this reason, it is Gas outlet 72 via a connecting line 92 with an adjacent one Gas outlet 52 connected so that when the gas outlet 72 is open, the gas from the gas supply 54 of the gas outlet 52 through the connecting line 92 flows to the opened gas outlet 72, and there through the gap between the tapered central section 76 of the closing element 74 and the radial seal 78 escapes.
- FIG. 7 shows the functioning of the closing element 74.
- the closing element shown in three different positions.
- Fig. 7 c shows the locking arrangement in the uncoupled Status.
- the closing element 74 is by the spring force of the coil spring 90 pressed with its shoulder 80 sealingly against the annular seat surface 84.
- the upper end of the closing element protrudes from the gas outlet 72 so far out that the lower end section at the level of the radial seal 78th lies, whereby the gas outlet 72 is additionally sealed.
- the upper end abuts of the closing element 74 against the surface of the trough 34 in the second Coupling part 12 '(this happens before the remaining closing elements 64 abut the second coupling part 12 '), and the closing element 74 partly pressed into the first coupling part (Fig. 7 b).
- the tapered Center piece 76 of closing element 74 comes at the level of radial seal 78 to lie and the gas flowing through the connecting line 92 from an adjacent one Gas supply 54 is brought up through the gap between the tapered central section 76 of the closing element 74 and the Radial seal 78 escape. It will then be on the surface of the second Coupled part deflected and escapes radially in all directions to the outside. It tears contaminants that are on the surfaces of the two Coupling parts have settled with them, and the coupling surfaces are cleaned.
- FIG. 8 shows a cylindrical holder 94 with a screw-in Insert 38.
- This cylindrical bracket 94 is used to manufacture the Inserts used.
- the manufacture of the inserts is due to their Position outside the axis 0 of the device in the conical trough Problem. Since the gas inlets are not arranged axially in the trough, are the seals 48 not in a plane perpendicular to the axis 0, but are bent over the spherical surface of the rounded trough bottom. As a result, the dovetail groove 50 cannot be screwed in in this position will. For this reason, the following is used for the production.
- the coupling device according to the invention is of course not on a version with three gas inlets resp. -outlets limited. It just two inlets may be provided as well as one version with four or more inlets is conceivable.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
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Description
- axiales Zusammenführen des ersten und zweiten Kupplungsteiles;
- Öffnen eines ersten Gasauslasses in dem ersten Kupplungsteil, bevor die beiden Kupplungsteile zusammengeführt sind;
- Öffnen der restlichen Gasauslässe in dem ersten Kupplungsteil, nach dem Säubern der Kupplungsoberflächen durch das aus dem geöffneten Gasauslaß ausströmende Gas, wobei Verunreinigungen, die sich auf den Kupplungsoberflächen abgesetzt haben, durch den Gasstrom radial nach außen gespült werden;
- Dichtendes Zusammenführen der beiden Kupplungsteile;
- Abdichtung der einzelnen Übergänge zwischen den jeweiligen Gasauslässen und den entsprechenden Gaseinlässen radial nach außen hin.
- Fig.1:
- einen senkrechten Schnitt durch eine erfindungsgemäße Kupplungsvorrichtung für das gleichzeitige Ankuppeln einer Gießpfanne an drei verschiedene Gasleitungen, wobei die beiden Kupplungsteile in ihrer nicht zusammengekuppelten Position gezeigt sind,
- Fig.2:
- einen senkrechten Schnitt durch die Kupplungsvorrichtung der Fig.1, wobei die beiden Kupplungsteile in ihrer zusammengekuppelten Position gezeigt sind,
- Fig.3:
- einen Ausschnitt aus Fig.2, der das Ventil in dem ersten Kupplungsteil und den darüber angeordneten Einsatz mit den Teileinlässen in den zweiten Kupplungsteil vergrößert darstellt,
- Fig.4:
- eine Ansicht von unten in die konusförmige Mulde des zweiten Kupplungsteiles,
- Fig.5:
- einen senkrechten Schnitt durch eine weitere bevorzugte Ausführung der erfindungsgemäßen Kupplungsvorrichtung für das gleichzeitige Ankuppeln einer Gießpfanne an drei verschiedene Gasleitungen, wobei die beiden Kupplungsteile in ihrer nicht zusammengekuppelten Position gezeigt sind,
- Fig.6:
- einen senkrechten Schnitt durch die Kupplungsvorrichtung der Fig.5, wobei die beiden Kupplungsteile in ihrer zusammengekuppelten Position gezeigt sind,
- Fig.7:
- einen senkrechten Schnitt durch den zentralen Gasauslaß der Kupplungsvorrichtung der Fig.5 bei verschiedenen Stellungen des Schließelementes,
- Fig.8:
- einen Schnitt durch eine zylinderförmige Halterung mit darin eingeschraubtem Einsatz.
Claims (25)
- Vorrichtung zum automatischen Ankuppeln einer Gießpfanne an eine oder mehrere Gasleitungen, die ein an eine Gasversorgung angeschlossenes, erstes Kupplungsteil (10) und ein an der Gießpfanne befestigtes, zweites Kupplungsteil (12) umfaßt, wobei in dem ersten Kupplungsteil (10) mehrere Gasauslässe (52) und in dem zweiten Kupplungsteil (12) ein oder mehrere Gaseinlässe (36) angeordnet sind, und wobei jeder dieser Gasauslässe (52) durch ein ihm zugeordnetes Schließelement (56) im ersten Kupplungsteil (10) verschließbar ist, dadurch gekennzeichnet, daß die Schließelemente (56) der einzelnen Gasauslässe (52) derart ausgelegt sind, daß beim Ankuppeln der beiden Kupplungsteile, vor dem dichtenden Aufsetzen der beiden Kupplungsteile aufeinander, zuerst ein einziger Gasauslaß freigegeben wird bevor die anderen Gasauslässe freigegeben werden.
- Vorrichtung zum automatischen Ankuppeln nach Anspruch 1, dadurch gekennzeichnet, daß in dem zweiten Kupplungsteil (12) ein Gaseinlaß weniger ausgeführt ist als Gasauslässe in dem ersten Kupplungsteil (10), und daß die Schließelemente (56, 74) derart ausgelegt sind, daß beim Ankuppeln der beiden Kupplungsteile zuerst der Gasauslaß (72), dem kein entsprechender Gaseinlaß zugeordnet ist, freigegeben wird bevor die anderen Gasauslässe freigegeben werden.
- Vorrichtung zum automatischen Ankuppeln nach Anspruch 2, dadurch gekennzeichnet, daß der Gasauslaß (72), dem kein entsprechender Gaseinlaß zugeordnet ist, auf der Achse (0) der Kupplungsanordnung angeordnet ist.
- Vorrichtung zum automatischen Ankuppeln nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß jeder der Gasauslässe (52) konusförmig ausgeführt und durch ein konusförmiges Schließelement (56) formschlüssig verschließbar ist, wobei das konusförmige Schließelement (56) in dem ersten Kupplungsteil (10) axial verschiebbar angeordnet ist und in Schließstellung aus dem konusförmigen Gasauslaß (52) derart herausragt, daß es beim Ankuppeln durch das zweite Kupplungsteil (12) nach innen in das erste Kupplungsteil (10) gedrückt wird.
- Vorrichtung zum automatischen Ankuppeln nach Anspruch 4, dadurch gekennzeichnet, daß jedes der konusförmigen Schließelemente (56) in dem entsprechenden konusförmigen Gasauslaß (52) gegen elastische Mittel (70) axial verschiebbar ist, wobei die elastischen Mittel (70) das Schließelement (56) bei entkuppelter Vorrichtung dichtend gegen den konusförmigen Gasauslaß (52) pressen.
- Vorrichtung zum automatischen Ankuppeln nach Anspruch 5, dadurch gekennzeichnet, daß die elastischen Mittel (70) eine Schraubenfeder umfassen.
- Vorrichtung zum automatischen Ankuppeln nach einem der Ansprüche 4 bis 6, dadurch gekennzeichnet, daß jedes der konusförmigen Schließelemente (56) eine ringförmige Schulterfläche (58) aufweist in der eine ringförmige Weichdichtung (60) derart angebracht ist, daß die ringförmige Weichdichtung (60) auf einer ringförmigen Sitzfläche (64), welche den konusförmigen Gasauslaß (52) umgibt, dichtend aufliegt, wenn das konusförmige Schließelement (56) formschlüssig in dem konusförmigen Gasauslaß (52) sitzt.
- Vorrichtung zum automatischen Ankuppeln nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß das erste Kupplungsteil (10) die Form eines Konus hat, und daß das zweite Kupplungsteil (12) die Form einer konischen Mulde (32) hat, die auf diesen Konus aufschiebbar ist, wobei der Öffnungswinkel der Mulde größer als der Öffnungswinkel des ersten Kupplungsteiles (10) ist.
- Vorrichtung zum automatischen Ankuppeln nach Anspruch 8, dadurch gekennzeichnet, daß der Konus des ersten Kupplungsteiles (10) eine kugelförmige Spitze aufweist, und daß der Boden (34) der konusförmigen Mulde des zweiten Kupplungsteiles (12) kugelförmig ausgebildet ist, um an der kugelförmigen Spitze des ersten Kupplungsteiles (10) anzuliegen.
- Vorrichtung zum automatischen Ankuppeln nach Anspruch 9, dadurch gekennzeichnet, daß die Gasauslässe (52) in der kugelförmigen Spitze angeordnet sind und die Gaseinlässe (36) in der kugelförmigen Mulde (34) angeordnet sind.
- Vorrichtung zum automatischen Ankuppeln nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß das zweite Kupplungsteil (12) eine Kupplungshülse (14) und einen Kupplungskörper (18) umfaßt, daß der Kupplungskörper (18) in der Kupplungshülse (14) axial verschiebbar gelagert ist, daß elastische Mittel (20) vorgesehen sind, um den Kupplungskörper (18) an einem in der Kupplungshülse (14) ausgeführten Absatz (24) abzustützen, so daß bei entkuppelter Vorrichtung der Kupplungskörper (18) in einer vorgeschobenen Position steht, und beim Zusammenkuppeln der Vorrichtung der Kupplungskörper (18) gegen die Federkraft der elastischen Mittel (20) in die Kupplungshülse (14) hineingedrückt wird, so daß der Kupplungskörper (18) durch die Federkraft der Mittel (20) dichtend gegen die Oberfläche des ersten Kupplungsteiles (10) gepreßt wird.
- Vorrichtung zum automatischen Ankuppeln nach Anspruch 11, dadurch gekennzeichnet, daß einer der Einlässe in dem zweiten Kupplungsteil (12) mit einer Kammer (42) oberhalb des Kupplungskörpers (18) verbunden ist, so daß bei zusammengekuppelter Vorrichtung der sich in der Kammer (42) aufbauende Gasdruck eine in Kupplungsrichtung wirkende Kraft auf den Kupplungskörper (18) ausübt, und so der Anpreßdruck der Ringdichtungen (48) an die Oberfläche des ersten Kupplungsteiles (10) erhöht wird.
- Vorrichtung zum automatischen Ankuppeln nach Anspruch 11 oder 12, dadurch gekennzeichnet, daß die elastischen Mittel (20) eine Schraubenfeder umfassen.
- Vorrichtung zum automatischen Ankuppeln nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, daß jeder Gaseinlaß (36) in einem in das zweite Kupplungsteil (12) einschraubbaren Einsatz (38) ausgeführt ist, in dem eine Ringdichtung (48) eingesetzt ist.
- Vorrichtung zum automatischen Ankuppeln nach Anspruch 14, dadurch gekennzeichnet, daß die Ringdichtung (48) in eine gedrehte Schwalbenschwanznut (50) in dem einschraubbaren Einsatz (38) eingesetzt ist.
- Vorrichtung zum automatischen Ankuppeln nach Anspruch 14 oder 15, dadurch gekennzeichnet, daß jeder Einlaß (36) in dem Einsatz (38) aus mehreren Bohrungen (46) besteht, welche kreisförmig um den Anstoßpunkt des entsprechenden Schließelementes (56) angeordnet sind.
- Vorrichtung zum automatischen Ankuppeln nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß dem Gasauslaß (72), dem kein entsprechender Gaseinlaß zugeordnet ist, ein axial in dem Gasauslaß verschiebbares Schließelement (74), derart zugeordnet ist, daß dieser Gasauslaß (72) bei ganz enkuppelter und bei ganz zusammengekuppelter Vorrichtung verschlossen ist und während des Ankupplungsvorganges freigegeben ist.
- Vorrichtung zum automatischen Ankuppeln nach Anspruch 17, dadurch gekennzeichnet, daß das Schließelement (74) in Schließstellung derart aus dem ersten Kupplungsteil (10') herausragt, daß es beim Ankuppeln durch das zweite Kupplungsteil (12') nach innen in das erste Kupplungsteil (10') gedrückt wird.
- Vorrichtung zum automatischen Ankuppeln nach Anspruch 17 oder 18, dadurch gekennzeichnet, daß in dem Gasauslaß (72) ein Einsatz (77) ausgeführt ist, der eine axiale Bohrung aufweist, und daß das Schließelement (74) zylinderförmig ausgebildet ist und zwei Endteilstücke und ein verjüngtes Mittelteilstück (76) aufweist, wobei der Durchmesser der Bohrung in dem Einsatz (77) so gewählt ist, daß die Endteilstücke des Schließelementes (74) paßgenau darin verschiebbar sind.
- Vorrichtung zum automatischen Ankuppeln nach einem der Ansprüche 17 bis 19, dadurch gekennzeichnet, daß in der Bohrung des Einsatzes (77) eine Radialdichtung (78) derart angebracht ist, daß der Gasauslaß (72) mit dem Schließelement abgedichtet ist, wenn das Schließelement (74) sich in einer Position befindet, in der eines der beiden Endteilstücke an der Radialdichtung (74) anliegt, und der Gasauslaß (72) freigegeben ist, wenn das Schließelement (74) sich in einer Position befindet, in der das verjüngte Mittelstück (76) des Schließelementes (74) sich in Höhe der Radialdichtung (78) befindet.
- Vorrichtung zum automatischen Ankuppeln nach einem der Ansprüche 17 bis 20, dadurch gekennzeichnet, daß das zylinderförmige Schließelement (74) eine ringförmige Schulterfläche (80) aufweist in der eine ringförmige Weichdichtung (82) derart angebracht ist, daß die ringförmige Weichdichtung (82) auf einer ringförmigen Sitzfläche (84), welche die Bohrung in dem Einsatz (77) umgibt, dichtend aufliegt, wenn das zylinderförmige Schließelement (74) ganz aus dem zylinderförmigen Gasauslaß (72) herausragt.
- Vorrichtung zum automatischen Ankuppeln nach Anspruch 21, dadurch gekennzeichnet, daß das Schließelement (74) in dem Gasauslaß (72) axial gegen elastische Mittel (90) verschiebbar ist, wobei die elastischen Mittel (90) das Schließelement (74) bei entkuppelter Vorrichtung derart in dem Gasauslaß (72) verschiebt, daß die ringförmige Schulterfläche (80) dichtend an die ringförmige Sitzfläche (84) des Einsatzes (77) gepreßt wird.
- Vorrichtung zum automatischen Ankuppeln nach Anspruch 22, dadurch gekennzeichnet, daß die elastischen Mittel (90) eine Schraubenfeder umfassen.
- Vorrichtung zum automatischen Ankuppeln nach einem der Ansprüche 17 bis 23, dadurch gekennzeichnet, daß der Gasauslaß (72), dem kein entsprechender Gaseinlaß zugeordnet ist, über eine Verbindungsleitung (92) mit der Gasversorgung (54) eines der anderen Gasauslässe (52) verbunden ist.
- Verfahren zum automatischen Ankuppeln einer Vorrichtung an mehrere Gasleitungen, wobei ein an eine Gasversorgung angeschlossenes, erstes Kupplungsteil (10) und ein an der Vorrichtung befestigtes, zweites Kupplungsteil (12) zusammengekuppelt werden, und wobei in dem ersten Kupplungsteil (10) mehrere verschließbare Gasauslässe (52) und in dem zweiten Kupplungsteil (12) ein oder mehrere Gaseinlässe (36) angeordnet sind, gekennzeichnet durch die Schrittea) axiales Zusammenführen des ersten und zweiten Kupplungsteiles;b) Öffnen eines ersten Gasauslasses in dem ersten Kupplungsteil (10), bevor die beiden Kupplungsteile zusammengeführt sind;c) Öffnen der restlichen Gasauslässe in dem ersten Kupplungsteil (10), nach dem Säubern der Kupplungsoberflächen durch das aus dem geöffneten Gasauslaß ausströmende Gas, wobei Verunreinigungen, die sich auf den Kupplungsoberflächen abgesetzt haben, durch den Gasstrom radial nach außen gespült werden;d) Dichtendes Zusammenführen der beiden Kupplungsteile;e) Abdichtung der einzelnen Übergänge zwischen den jeweiligen Gasauslässen und den entsprechenden Gaseinlässen radial nach außen hin.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LU88594A LU88594A1 (de) | 1995-03-03 | 1995-03-03 | Vorrichtung zum automatischen Ankuppeln einer Giesspfanne an eine oder mehrere Gasleitungen |
| LU88594 | 1995-03-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0729797A1 EP0729797A1 (de) | 1996-09-04 |
| EP0729797B1 true EP0729797B1 (de) | 1998-05-13 |
Family
ID=19731519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96101956A Expired - Lifetime EP0729797B1 (de) | 1995-03-03 | 1996-02-10 | Vorrichtung und Verfahren zum automatischen Ankuppeln einer Giesspfanne an eine oder mehrere Gasleitungen |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US5823221A (de) |
| EP (1) | EP0729797B1 (de) |
| JP (1) | JP3605465B2 (de) |
| KR (1) | KR100336663B1 (de) |
| AT (1) | ATE166009T1 (de) |
| AU (1) | AU707100B2 (de) |
| BR (1) | BR9600656A (de) |
| CA (1) | CA2169499C (de) |
| DE (1) | DE59600198D1 (de) |
| ES (1) | ES2116122T3 (de) |
| LU (1) | LU88594A1 (de) |
| ZA (1) | ZA961724B (de) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9900295D0 (en) * | 1999-01-07 | 1999-02-24 | Vacmetal Uk Limited | Coupling |
| EP1537925A1 (de) * | 2003-12-04 | 2005-06-08 | Paul Wurth S.A. | Vorrichtung zum automatischen Ankuppeln einer metallurgischen Pfanne an mindestens zwei Gaszuführungen |
| US7150416B2 (en) * | 2004-04-09 | 2006-12-19 | Tronox Llc | Liquid fuel injection |
| DE102004027531B3 (de) * | 2004-06-02 | 2005-06-09 | Mannesmannröhren-Werke Ag | Kupplung zum Ankuppeln eines metallurgischen Gefäßes an Gasspülleitungen |
| KR101100727B1 (ko) | 2009-11-30 | 2011-12-29 | 주식회사 우진 | 용선예비처리 설비의 오토 커플러 장치 |
| KR100994832B1 (ko) * | 2009-12-17 | 2010-11-16 | (주)인영 | 래들용 오토 커플러 연결 구조체 |
| KR101257258B1 (ko) | 2011-03-30 | 2013-04-23 | 현대제철 주식회사 | 래들 이송대차의 아르곤 가스 유입용 연결장치 |
| KR200469960Y1 (ko) | 2012-06-19 | 2013-11-15 | 주식회사 우진 | 오토 커플러 장치 |
| US8925570B2 (en) * | 2013-01-25 | 2015-01-06 | Deere & Company | Arrangement for cleaning hydraulic coupler mating surfaces |
| CN104100788B (zh) * | 2013-04-08 | 2016-08-24 | 富泰华工业(深圳)有限公司 | 接头 |
| CN107869619B (zh) * | 2017-06-16 | 2019-03-19 | 武汉科技大学 | 一种气动式万向对接送气装置 |
| CN114087442B (zh) * | 2021-12-04 | 2024-12-27 | 无锡巨力重工股份有限公司 | 一种自调节吹氩接头 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3703908A (en) * | 1971-07-26 | 1972-11-28 | Us Air Force | Squirt cleaning poppet valve and seat |
| CA1148988A (en) * | 1979-12-12 | 1983-06-28 | Ivan I. Zaitsev | Automatic coupling device to connect tractor and tractor-drawn means hydraulic systems |
| LU87082A1 (fr) * | 1987-12-18 | 1989-07-07 | Wurth Paul Sa | Dispositif d'accouplement d'une poche metallurgique a un reseau de gaz |
| US5065986A (en) * | 1990-07-30 | 1991-11-19 | Insul Company, Inc. | Automatic gas hookup to a ladle |
| LU87868A1 (fr) * | 1990-12-21 | 1992-08-25 | Wurth Paul Sa | Raccord rapide double flux pour l'accouplement automatique et simultane d'une poche metallurgique a deux reseaux de gaz differents |
| DE4117588A1 (de) * | 1991-05-29 | 1992-12-03 | Egon Evertz | Kupplungseinrichtung fuer den anschluss einer leitung an metallurgische behaelter |
| LU88014A1 (fr) * | 1991-10-09 | 1993-05-17 | Wurth Paul Sa | Dispositif d'accouplement automatique entre des conduites sur une station de traitement et une poche métallurgique |
-
1995
- 1995-03-03 LU LU88594A patent/LU88594A1/de unknown
-
1996
- 1996-02-10 EP EP96101956A patent/EP0729797B1/de not_active Expired - Lifetime
- 1996-02-10 AT AT96101956T patent/ATE166009T1/de active
- 1996-02-10 ES ES96101956T patent/ES2116122T3/es not_active Expired - Lifetime
- 1996-02-10 DE DE59600198T patent/DE59600198D1/de not_active Expired - Lifetime
- 1996-02-14 CA CA002169499A patent/CA2169499C/en not_active Expired - Fee Related
- 1996-02-15 AU AU45564/96A patent/AU707100B2/en not_active Ceased
- 1996-02-27 US US08/607,610 patent/US5823221A/en not_active Expired - Lifetime
- 1996-03-01 JP JP07103696A patent/JP3605465B2/ja not_active Expired - Fee Related
- 1996-03-02 KR KR1019960005481A patent/KR100336663B1/ko not_active Expired - Fee Related
- 1996-03-04 ZA ZA961724A patent/ZA961724B/xx unknown
- 1996-03-04 BR BR9600656A patent/BR9600656A/pt not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08243729A (ja) | 1996-09-24 |
| AU707100B2 (en) | 1999-07-01 |
| ZA961724B (en) | 1996-09-10 |
| EP0729797A1 (de) | 1996-09-04 |
| CA2169499C (en) | 2007-07-31 |
| ATE166009T1 (de) | 1998-05-15 |
| LU88594A1 (de) | 1996-10-04 |
| DE59600198D1 (de) | 1998-06-18 |
| ES2116122T3 (es) | 1998-07-01 |
| US5823221A (en) | 1998-10-20 |
| JP3605465B2 (ja) | 2004-12-22 |
| BR9600656A (pt) | 1997-12-30 |
| KR960034838A (ko) | 1996-10-24 |
| AU4556496A (en) | 1996-09-12 |
| KR100336663B1 (ko) | 2002-11-23 |
| CA2169499A1 (en) | 1996-09-04 |
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