MXPA00001168A - Device and method for replacing an interchangeable part of an ingot arrangement in a continuous casting installation - Google Patents

Abstract

The invention relates to an ingot arrangement (1) in a continuous casting installation, comprising an ingot mould (2A) and an oscillating holding device (4) used for causing said ingot mould to swing when in a casting position (2a). The ingot arrangement consists, in a separable manner, of an interchangeable part (2a) and a stationary part (4, 11, 12, 12', 71). To replace the interchangeable part, it is separated from the stationary one and moved using a conveying means (23), at least along a partial path, from its position of operation into an area (29) beneath the casting position (2a). This enables, especially in multiline casting installations, the interchangeable part to be transported during the casting process and, for example, along paths comprising straight (23') or arciform segments (23''), to any purposefully selected position (2b) and to be replaced by a new interchangeable part by reversing the steps of the method. Such a method allows for an interchangeable part to be replaced in multiline installations with no interference with the casting process in any adjacent ingot arrangement.

Description

DEVICE AND METHOD FOR THE REPLACEMENT OF A PART INTERCHANGEABLE OF A LINGOTERA DISPOSITION IN ONE INSTALLATION OF CONTINUOUS COLADA • DESCRIPTION OF THE INVENTION The present invention relates to a continuous casting installation with a device for the replacement of an interchangeable part of an ingot mold arrangement of the continuous casting installation according to the preamble of claim 1, and to a method for the replacement of an interchangeable part of the continuous casting installation according to claim 1. In continuous casting installations, particularly in continuous steel casting installations, it is usually necessary to replace an ingot mold or at least one component of the ingot mold from time to time. . For example, the action of a cast bar, which solidifies in the mold cavity of forming an ingot mold, on the wall of the forming cavity delimiting the forming cavity, gives rise to the long, for the purpose of wear and requires a repair or a replacement of the wall of the shaping cavity. Incidents that occur during the casting process, such as perforations of a crust of REF .: 32583 bar or overflows of the molten metal above the casting opening of the ingot mold usually lead to an interruption of the casting process in the respective ingot mold. Usually parts of the continuous casting installation, particularly the ingot mold or parts of the ingot mold and guide devices of the bar below the ingot mold, must be freed from solidified metal or even replaced, before the casting process can be resumed. Generally, the ingot molds in a continuous casting installation are supported by a clamping device, configured in such a way that the ingot molds can be oscillated in a casting position. The clamping device is generally realized in the form of an oscillating table, accessible from above for the assembly and disassembly of an ingot mold. In a multiple casting plant with molds with a vertical or inclined cavity, during the casting process, intermediate troughs are arranged above the ingot molds, from which molten metal is poured into the forming cavity, with several ingot molds generally being fed. with cast from an intermediate trough with several buzzes. An incidence that necessarily entails the replacement of an ingot mold has as a consequence the interruption of the casting process in the ingot mold affected by the incidence and, therefore, a decrease in the casting capacity of the continuous casting installation, since the intermediate tundish it blocks from above the access to the ingot molds and the necessary substitution of ingot mold is only possible in a pause of casting after the distance of the intermediate trough. From US-PS 3 273 208 'a continuous casting plant is known which is suitable for sequential long runs and which is provided with a device for quick replacement of an ingot mold. The ingot mold is arranged on a displacement table horizontally in a straight line, which cooperates with a mold transfer cart movable transversely thereto or with a rotary table. - The displaceable sliding table requires open pits along the path of travel on the floor of the casting platform, which for safety reasons are undesirable. In the case of using the rotary table in combination with multiple casting facilities, large spacings between bars and therefore large intermediate troughs are required. An installation of this replacement device in multiple casting facilities not only leads to a high construction expense, but also to high operating costs, due to the maintenance of intermediate troughs prone to wear. In addition, during the casting of molten metal from an intermediate tundish to several ingot molds, variations of the casting parameters occur., for example differences in the casting temperature or the reheating temperature in the different ingot molds. These variations usually become greater as the spacing between bars increases and give rise to unacceptable variations in the quality of the stretched bars of the different ingot molds. From JOS 62-9749, which is the preamble of claim 1, a device for the replacement of an ingot mold in a continuous casting installation equipped with an oscillating clamping device for the ingot mold is known. The clamping device comprises a platform on which the ingot mold can be fixed in an operative position and whose height is variable with the help of two lever systems equipped with independent drives. A first system of levers makes possible a descent and ascent of the platform and serves as a conveyor device for transporting the ingot mold from the operative position to a second position in which the ingot mold can be caught by a second conveyor device below the casting platform, lifted from the platform and subsequently transported. A second system of levers makes it possible to oscillate the ingot mold around the position prefixed by the first leverage system, due to the fact that the group constituted by the ingot mold, the platform and the first levers system is set in motion as all with the help of the second system of levers. This construction suffers from the drawback that in the casting process a relatively large total mass must be kept in motion for the oscillation of the ingot mold, and that the first lever system must be costly stabilized against the vibrations transmitted by the second system of levers in order to be able to keep the casting conditions controlled for a long time. In addition, in the initial phase of the ingot mold replacement, it must be moved with the conveyor device. a relatively large mass, in addition to the ingot mold. DE 32 07 149 discloses an ingot mold which is removably mounted on an oscillating lifting table and comprises a water drawer, upper and lower flange plates, a water conduit jacket and an ingot mold tube. The flange plates, the ingot mold tube and the water conduit jacket are connected by means of connection elements, a unit that can be removed from the water drawer upwards by means of a crane, as a compact, adjusted assembly, or as a introduced from above into the water drawer, and that therefore can only be replaced in a casting pause after the distance of the intermediate trough above the ingot mold. In LU 84 507 there is disclosed a multiple casting installation with an arrangement of ingot molds in which each ingot mold is arranged, together with all its accessories, such as, in particular, the oscillating device for the ingot mold, on a movably mounted frame in a longitudinal direction on a folding ramp. After the ramp has been folded down, the ingot mold can be moved along with the oscillating device, which consists of an oscillating mechanism and a drive motor, along the ramp to a position below the operating position, where be separated from the oscillation device and then replaced. Also in this arrangement it is necessary to displace a relatively large mass before the ingot mold can be replaced.

The purpose of the present invention is to avoid the drawbacks of the known devices and to provide a constructively simplified device and a method for the replacement of an interchangeable part of an ingot mold arrangement of a continuous casting facility, and it should be possible, in a installation of multiple casting and during the running of the casting process, carry out the replacement process in a selected individual mold. This purpose is achieved, according to the invention, by a continuous casting installation according to claim 1 and a method according to claim 14. It is assumed that the ingot mold comprises, in addition to a wall of the forming cavity, which forms a bar , a support structure for the wall of the shaping cavity. A separable connection between the wall of the shaping cavity and the oscillating holding device can be established by the support structure. The clamping device specifically determines the casting position of the ingot mold. As a stationary part, it is considered a part of the ingot mold arrangement that is linked with the interchangeable part during the casting process and defines the disposition in the space of the interchangeable part, hereinafter referred to as the operative position of the interchangeable part, and remains when the Interchangeable part is moved away from the operative position with the help of the conveyor device. By definition, the stationary part comprises at least the clamping device. According to the invention, the interchangeable part comprises at least one component of the ingot mold, the clamping device and the interchangeable part being designed in such a way that the interchangeable part is capable of being displaced, after a separation of the stationary part, by the device conveyor from the operative position to a space located below the pouring position. Due to the fact that at the beginning of a replacement process the interchangeable part of the stationary part is first separated, the interchangeable part is uncoupled from the oscillating holding device. In this way it is possible to replace the interchangeable part without moving the stationary part. Thus, the mass request of the conveyor device during operation can be reduced to a minimum. Furthermore, the conveyor device can be designed in such a way that it is separated from the clamping device and that during the casting process the clamping device can oscillate together with the ingot mold without any influence of the conveyor device. As according to the invention, the interchangeable part is capable of being displaced, after its separation from the stationary part, by the conveyor device from the operative position to a space located below the pouring position, the interchangeable part can be replaced, in installations of multiple casting, also during the casting process, even though intermediate troughs block the access from above to the interchangeable parts above the ingot molds. In addition, multiple casting installations with discrete separations between bars can be realized and a device according to the invention adapted to a predetermined spacing between bars can be constructed. The spacings between bars can be minimized if the conveyor device is designed, for example, in such a way that an ingot mold can be moved, in the direction of guidance of the bar, to the space situated below the pouring position. In this way, a movement of the ingot mold towards an adjacent bar is avoided.

Various embodiments of the device according to the invention differ in the configuration of the ingot mold arrangement. This can be done in such a way that it is possible to replace parts of the ingot mold and / or of the entire ingot mold. The interchangeable part is likely to be picked up by the conveyor device. In one embodiment, the interchangeable part consists solely of the wall of the shaping cavity of the ingot mold. ThereforeIt will be possible to replace only that part of an ingot mold which is subject to the greatest wear, without having to move the other parts of the ingot mold or ingot mold arrangement, which as a rule have a much larger mass than the wall of the mold cavity. conformation. The stationary part of the ingot mold arrangement may be provided with guide members to facilitate automatic positioning of the interchangeable part during displacement to its operative position. Seals, which can be integrated in the guide members, are provided for automatically sealing the wall of the shaping cavity, during the replacement, against the outlet of cooling medium that can be applied to the wall of the shaping cavity. This embodiment is particularly easy to perform in combination with an ingot mold with spray cooling; in this case, a spray cooling device can be associated with the stationary part of the ingot mold arrangement for cooling the wall of the forming cavity. However, this embodiment is also applicable to ingot molds with water jacket cooling. In a further embodiment, the interchangeable part is constituted by the wall of the shaping cavity with a channel of cooling medium for cooling the wall of the shaping cavity. The cooling medium channel can, for example, be made as a water jacket cooling that surrounds the wall of the forming cavity. In this embodiment, it is particularly advantageous to provide the stationary part of the ingot mold arrangement with a supply connection for the cooling medium, such that the cooling medium channel is automatically connected to the supply connection when the part is placed. interchangeable in the operative position.

In a further embodiment of the invention, the interchangeable part comprises the ingot mold in its entirety. In this case, the supporting structure of the wall of the shaping cavity is detachably connected to the clamping device in such a way that the ingot mold can be caught by the conveyor device and moved from the operative position to a space situated by below the pouring position. Normally, the mold or ingot mold arrangement may comprise devices intended to influence the casting and / or solidification processes and / or the monitoring and / or the operation of the continuous casting plant. Further embodiments according to the invention can therefore be differentiated according to which of said devices must be selectively associated with the stationary part of the ingot mold arrangement or with the interchangeable part. It is advantageous to provide devices, which have to influence a cast bar projecting immediately adjacent to the outlet opening of the shaping cavity, in the interchangeable part. Such devices comprise, for example, bead rolls and / or spray cooling devices and / or an electromagnetic stirrer for the bar.

Devices that need to be exchanged less frequently can advantageously be realized as an integral part of the stationary part of the mold-making arrangement and be linked, for example, at the periphery of the ingot mold with the clamping device or, when the support structure for the wall of the forming cavity must be associated with the stationary part, arranged in the support structure. Such devices are, for example, devices for electromagnetic stirring and / or braking of molten metal in the forming cavity and / or in the casting rod or a spray cooling device for the rod. If such devices are particularly heavy, then their association with the stationary part of the ingot mold arrangement results in a particularly advantageous configuration of the device according to the invention, since the conveyor device can be designed for smaller loads. Devices can also be associated, which must operate in combination with complex feeding devices, advantageously to the stationary part of the ingot mold arrangement, so as not to have to make excessively expensive the connection to the feeding device, for example in the form of releasable power connections. This category includes, for example, measuring devices for controlling the casting process, in particular for measuring a level of the liquid steel and / or for controlling the temperature of parts of the ingot mold. Further configurations of the device according to the invention relate to an interchangeable part comprising one or more components that require a supply via stationary power connections. In this case, it is provided that the stationary part comprises at least one supply connection and the interchangeable part is configured in such a way that the supply connection is connected or disconnected, during the replacement of the exchangeable part, with a corresponding power supply connection. the interchangeable part, in order to establish or interrupt a power connection. Such power connections can be used for supplying energy or cooling means or lubrication means or for the exchange of signals. For example, an electrically-active stirrer integrated in the interchangeable part can be supplied with electrical power via automatically connected power connections, a lubrication medium conduit leading to the forming cavity can be supplied with lubrication means, or measurement signals can be exchanged. and / or steering between a governable device linked to the interchangeable part or a measuring probe, for example a temperature probe for measuring the temperature in the wall of the shaping cavity or other segments of the interchangeable part, with steering and / or measuring devices in the periphery of the interchangeable part. As regards the conveyor device, various embodiments are conceivable according to the configuration of the ingot mold arrangement. The conveyor device can comprise a lifting device with which the interchangeable part can be linked and which is configured in such a way that the interchangeable part can be moved from the operative position to the space situated below the pouring position. The conveyor device can be designed in such a way that the interchangeable part can be displaced from the operating position at least along a partial path essentially tangentially to the guide direction of the bar in the outlet opening. This embodiment of the conveyor device has the advantage that the interchangeable part occupies a particularly small volume during its replacement. In this way it is possible to construct the ingot mold arrangement in a particularly compact manner. Particularly when components of the stationary part of the ingot mold arrangement are positioned with the minimum possible separation of the interchangeable part, for example an electromagnetic stirrer or a level measuring device for the liquid steel, the interchangeable part must be moved away from its operative position. , during the replacement, with reduced slack of movements. In a further development of the conveyor device, it is provided that the interchangeable part is displaceable from the operative position in a partially rectilinear and / or partially curved path. The advantageous possibility of displacing the interchangeable part from the operative position to any desired convenient position, in which the interchangeable part can be subjected to further processing, results from this. In a continuous casting installation in which the cast bar is guided, immediately after its exit from the ingot mold, through a secondary cooling chamber, it is for example possible to construct the conveyor device in such a way that it can be positioned externally to the secondary cooling chamber and that the interchangeable part can be caught through an obturable opening in the wall of the cooling chamber and be moved, after a tangential displacement to the guidance direction of the bar, laterally outside the chamber of secondary cooling. During the casting process the conveyor device is largely protected by the wall of the cooling chamber from damaging influences of the casting process, for example due to breaks in the bar. It is also possible to realize the conveyor device as a mobile unit. This construction offers the advantage, in multiple casting installations, that several ingot molds can be served with the same conveyor device, by the fact that the conveyor device is positioned each time conveniently in the vicinity of the interchangeable part to be replaced. It is also conceivable to arrange the conveyor device stationary with respect to the continuous casting installation. For example, a conveyor device can be associated to each mold. In this case, an expensive positioning of a conveyor device adjusted once to an interchangeable part can be dispensed with. In this way, an automation of a device according to the invention is facilitated. In the following, examples of the invention will be described with reference to the accompanying drawings, in which: Fig. 1 is a vertical sectional view of an ingot mold arrangement; Fig. 2 is a vertical sectional view of a double continuous casting installation; Fig. 3 is a vertical sectional view of a further example of an ingot mold arrangement; Fig. 4 is a vertical sectional view of a further example of an ingot mold arrangement; Fig. 5 is a sectional view according to line IV-IV of Fig. 4; Fig. 6 is a vertical sectional view of a further example of an ingot mold arrangement; and Fig. 7 is a sectional view according to line VI-VI of Fig. 6. Fig. 1 shows an ingot mold arrangement. 1 passing through an opening in a floor 6 of a casting platform. The ingot mold arrangement 1 comprises an ingot mold 2 with a shaping cavity 3 and a holding device 4 for the ingot mold 2. The mold 2 is provided as an interchangeable part of the mold 1 arrangement and can be moved inddently of the other components of the mold 1. the arrangement of ingot mold 1, which constitutes a stationary part, and by means of a conveyor device 23. Reference numerals 2a, 2b, etc. will now be used. to identify mold 2 in different positions. The shaping cavity 3 is constituted by a wall 9 of the shaping cavity, provided with a pouring opening at the upper end and an outlet opening for a bar 3 'at the lower end of the ingot mold 2. In FIG. 1 the bar 3 'is illustrated as a solidified bar remainder, sectioned immediately next to the exit opening of the ingot mold 2 and endowed with an upper end 3"corresponding to the level of the liquid steel in the casting process. 2 comprises an outer jacket 20 which serves as support structure for the wall 9 of the shaping cavity and is connectable with the holding device 4. The space between the jacket 20 and the wall 9 of the shaping cavity is configured for the passing a cooling medium, for example water, serving a gap between the wall 9 of the shaping cavity and a tube 49 surrounding said wall 9 of the channel shaping cavity for the cooling medium ón, through which the cooling medium can be fed from an inlet 15 'to an outlet 16'. The clamping device 4 is embodied as an ingot mold table 4 'with an opening, through which the ingot mold 2 can be placed from below in a pouring position 2 a, and with wedges 13' movable along the length of the mold. ingot table 4 '. As indicated in FIG. 1 by a double arrow in the direction of guidance of the bar, the clamping device 4 can be swung by means of a drive not illustrated. The pouring position 2a is defined by positioning members 13 fixed to the ingot mold 2 and liable to be releasably linked to the ingot mold table 4 'by the wedges 13'. The ends furthest away from the jacket 20 of the ingot mold of the inlet and outlet ducts 15 'and 16', respectively, for the cooling medium are embodied as respective power connections. These are configured in such a way that when the mold 2 is placed in the pouring position 2a they are detachably connected, at coupling points 15"and 16", with corresponding inputs and outputs 15 and 16 for the cooling medium, arranged in the stationary part of the ingot mold arrangement 1. In the casting process the part of the ingot mold 2a projecting above the ingot mold table 4 'is surrounded by a casing 11 housing various devices required in the casting process, associated to the stationary part of the ingot mold arrangement 1, for example a measuring unit constituted by a radioactive irradiator 12 and a detector 12 'for the control of the level of the liquid steel 3"or an electromagnetic stirrer (not shown). a power connection for energy and / or signals, which can be established or separated during the replacement of the ingot mold 2a, is indicated in Fig. 1 a device or temperature gauge 70, which is installed, for measuring the temperature of the cooling medium, at the outlet end of the tube 49 and is connectable, through electrical contacts on the outside of the ingot mold, with corresponding contacts 71 in the envelope 11, in order to ensure the feeding with electrical energy or the exchange of measurement and / or steering signals. The conveyor device 23 allows a displacement of the ingot mold 2 with two degrees of freedom and is composed of several functional groups 23a, 23b, 23c, 23d. Through a coupling element 23d a connection can be established between the conveyor device 23 and the ingot mold 2a. The coupling element 23d is displaceable in the direction of the arrow 23 'by the linear drive 23c, the linear drive 23c being displaceable in the direction of the arrow 23"by means of the swinging arm 23b and a stationary tilting device 23a. For the swivel arm 23b, for the replacement of the ingot mold 2a, the coupling element 23d is connected, after a suitable positioning of the conveyor device 23, to the ingot mold 2a and is released, by displacement of the wedge 13 ', the connection between the ingot mold 2a and the clamping device 4. The ingot mold is then moved, by driving the linear propeller 23c, along the arrow 23 ', ie essentially tangentially to the guide direction of the rod 3' in the exit opening of the ingot mold 2a, to a space 29 located below the pouring position 2a, the feeding connection being released from the inlets and outlets 1 5, 15 'and 16, 16' at the coupling points 15"and 16". Openings in the ingot mold table 4 'and in the envelope 11 serve as guiding surfaces 4"and 11'. Then the ingot mold 2 can be transported, by actuating the tilting device 23a, to a convenient position for further treatment of the mold. the ingot mold 2, for example to the position 2b indicated in Fig. 1. These processes can be inverted for the placement of a new ingot mold 2 in the pouring position 2 a Fig. 2 illustrates a tundish 30, which serves as an intermediate trough for two rods 3 ', disposed above two mold-hole arrangements 1. The mold-hole arrangements 1' are seated on an ingot mold table 4 ', capable of being oscillated by means of an oscillation device 5. Below the ingot mold arrangements 1 'there are indicated secondary cooling chambers 7, 7' with partition walls 8, 8 ', 8". A casting interruption and an ingot mold replacement are illustrated in the left-hand bar, and a running casting is illustrated in the bar on the right. The ingot mold arrangements 1 'each consist of an interchangeable part, consisting of an ingot mold 2' with a wall 9 of the forming cavity and with a supporting structure 10, configured as a cooling water housing, for the wall 9 of the shaping cavity, and a stationary part. The stationary part comprises the ingot mold table 4 ', coupling devices 14 with inlets and outlets 15 and 16 for cooling water for the connection of the support structure 10 to a cooling water circuit. The coupling devices 14 simultaneously serve as fastening devices for the interchangeable part and are designed as slide plates movable transversely to the direction of advance of the bar (arrow 17). For reasons of greater clarity, the drive for the displacement according to the arrow 17 has been omitted. An additional clamping device for the casting half of the interchangeable part is constituted by a lubrication oil distribution plate 18, which constitutes the upper part of a casing 11 of the ingot mold 2 '. A conical guide surface 19 serves simultaneously as a centering for the interchangeable part and the lubricating oil coupling surface, which is fed through a conduit 21. Below the mold 1 'arrangement is illustrated in the cooling chamber secondary 7 a lifting device 22 as a telescopic lifting cylinder. At the upper end of the lifting device 22, a gripping device 24 is provided as a connecting element between the lifting device 22 and the interchangeable part. The gripper 24, equipped with a centering guide 25 and movable pins 26, is adapted to extract together with the lifting device 22 the interchangeable part in vertical direction, ie in an essentially axial direction to the wall 9 of the shaping cavity, from its position operative as well as to enter it from below. The lifting device 22 is arranged in this example on a carriage 27, capable of being inserted and fixed on an intermediate platform 28 in the secondary cooling chamber 7. Before the carriage 27 can be introduced into the secondary cooling chamber 7 it is It is necessary to section below the ingot mold and to evacuate a cast bar that is eventually trapped in the ingot mold. Before or after sectioning, sprinkler devices for secondary cooling and, if present, guide rollers are separated by tilting or moving away. Subsequently, identical reference numerals will be used for identical parts of the ingot mold arrangements. In FIG. 3, a portion of the bar 31, which has been stuck in an ingot mold 2, is illustrated in an arrangement of mold 1". The ingot mold 2"is provided as an interchangeable part The support structure 10 for the wall 9 of the shaping cavity of the ingot mold 2" is provided with a guide 32 for a circulation of cooling water along the wall 9 of the conformation cavity. The wall 9 of the shaping cavity is curved and may have a circular or rectangular cross section, etc. The outer shape of the support structure 10 is made in a cylindrical or prismatic manner, so that the interchangeable part can be removed from the operative position, or inserted therein, in a rectilinear, vertical and essentially axial way to the wall 9. of the forming cavity, in the direction of an arrow 33. The arrangement of ingot mold 1"in Fig. 3 is provided with various accessory devices Within the casing 11 and of the ingot mold 2" an electromagnetic stirring device is arranged. or braking 51. Immediately below the wall 9 of the shaping cavity there is provided in the mold 2"a stirrer 34, heel rollers 35 and spray devices 36. They are grasped, together with the bar part 31. that is stuck, the wall 9 of the shaping cavity and the support structure 10, by the correspondingly configured gripping device 38 and are extracted vertically The lifting device can place the defective interchangeable part in a vertical position on a device providing interchangeable parts or pick up the new interchangeable part therefrom. If the gripping device 38 is pivotably arranged in, for example, 90 [deg.] In the lifting device, the interchangeable parts can also be raised or horizontally deposited in a mechanized manner by the device providing interchangeable parts. In the pouring position the interchangeable part is held and tensioned by coupling devices 14 in the form of sliding plates, movable along guides 39, and by the conical guide surfaces 19 in the casing 11. The replacement of ingot mold can also, if the installation is stopped, from above a casting platform 41 by means of a crane. Once the lubrication oil distribution plate 18 has been moved away, the ingot mold 2 can be pulled upwards. "However, it is also possible to replace the arrangement of the ingot mold 1", ie the ingot mold 2"and the casing 11, upwards as unit with or without ingot mold table 4. Instead of the telescopic lifting cylinder shown in the figures, other lifting and guiding systems known in the state of the art can be used, for example, they can be designed in such a way that the interchangeable part is capable of being displaced from the operative position and along a partially rectilinear and / or partially curved path to any place, conveniently selected. In Figures 4 and 5 there is illustrated an ingot mold arrangement with an interchangeable part consisting of a segment of an ingot mold 2 '' ', particularly of a wall 40 of the forming cavity and of a sealing flange 43, and has surfaces guide 42, 44. The sealing flange 43 is connected in a sealed manner against the outlet of cooling water with the wall 40 of the forming cavity. The circular guide surface 44 also has the function of a sealing surface and rests against a surface 45 of a further circular flange 46. The flange 4 6, together with the support structure 47, is formed by a guide flange and support 48 and a side wall 47 ', for the wall 40 of the shaping cavity, a water jacket 49 and a stirring device 50, to the stationary part of the ingot mold 2' ''. With 52 mobile pins are designated, intended to hold the interchangeable part and which are displaceable horizontally by displacement means not illustrated. Seals are schematically indicated by small circles 54. Below the ingot mold a portion of a lifting device 56, partially illustrated, for removing the wall 40 from the forming cavity is visible. By means of hammer head pins 57, a connection can be established between the sealing flange 43 and the lifting device 56. In the mold arrangement j '>; According to FIGS. 6 and 7, a wall 60 of the shaping cavity of an ingot mold 2"'' is installed in a support structure 61. For cooling the wall 60 of the shaping cavity, there is disposed a water spray cooling, consisting of sprinkler tubes 62 and sprinkler nozzles 63, connected through a cooling water inlet conduit 72 and a cooling water outlet conduit 73 to a supply network. The interchangeable part of the ingot mold arrangement i "'' consists of the wall 60 of the forming cavity, of an upper sealing flange 65 with a supply of lubrication means 66 and of a lower sealing flange 67, which is supports on a flange 68 of the support structure 61. A coupling part of a lifting apparatus 69 is illustrated schematically. An additional flange 70 is arranged between the upper sealing flange 65 and the supporting structure 61. This flange 70 can be disassembled upwards, together with the interchangeable part, by means of a lifting device 75, when the intermediate tundish has been moved away. . The ingot mold arrangements according to Figures 1-7 present interchangeable parts suitable to be replaced, according to the invention, according to the following process steps: - The interchangeable part is separated from the stationary part of the ingot mold arrangement and is then displaced from its operative position by means of a conveyor device at least along a partial path to a space situated below the casting position.

- By reversing these steps, a new interchangeable part can be placed in its operative position and connected with the stationary part of the ingot mold arrangement. Various marginal measures may be convenient depending on the situation, in relation to these process steps, for example an interruption of the molten metal feed, a stoppage of the oscillation movement of the ingot mold, a section of bar debris imprisoned in the ingot mold. in the vicinity of the exit opening of the ingot mold, a momentary distancing of the secondary cooling devices below the ingot mold. In this way, the interchangeable part is accessible to a conveyor device, and the necessary clearance of movement is ensured in the space located below the casting position.

It is noted that in relation to this date, the best method known to the applicant to carry out the aforementioned invention, is the conventional one for the manufacture of the objects or products to which it refers.

Claims (15)

1. Having described the invention as above, the content of the following claims is claimed as property: 1. The continuous casting installation, consisting of a) an ingot mold arrangement comprising an ingot mold and an oscillating clamping device for the oscillation of the ingot mold. in a casting position and consisting of a stationary part and an interchangeable part, the interchangeable part being detachably linked with the stationary part and the interchangeable part comprising at least one component of the ingot mold; b) a device for replacing the interchangeable part, comprising a conveyor device for transporting the interchangeable part between an operative position and a second position in a space located below the casting position; characterized in that c) the stationary part comprises the clamping device and d) the clamping device and the interchangeable part are configured in such a way that the interchangeable part is displaceable, after a separation of the stationary part, by the conveyor device from the position operative to the second position.
2. 2. The continuous casting installation according to claim 1, characterized in that the interchangeable part comprises a wall of the shaping cavity which determines a shaping cavity of the ingot mold with a pouring opening and an exit opening for a bar.
3. 3. The continuous casting installation according to claim 2, characterized in that the interchangeable part comprises a channel of cooling medium surrounding the wall of the forming cavity for cooling the wall of the forming cavity.
4. 4. The continuous casting installation according to one of claims 1-3, characterized in that the interchangeable part comprises the ingot mold.
5. 5. The continuous casting plant according to one of claims 2 or 3, characterized in that the interchangeable part comprises at the outlet opening heel rollers and / or spray cooling devices and / or an electromagnetic stirrer for the rod.
6. 6. The continuous casting installation according to one of claims 1-5, characterized in that the stationary part comprises a device for the electromagnetic stirring and / or the braking of molten metal in the forming cavity and / or in the bar and / or a spray cooling device for the bar and / or measuring devices for the control of the casting process, particularly for measuring the level of the liquid steel and / or for controlling the temperature of parts of the ingot mold.
7. 7. The continuous casting installation according to one of claims 2 or 5-6, characterized in that the stationary part comprises a spray cooling device for cooling the wall of the forming cavity.
8. 8. The continuous casting installation according to one of claims 1-7, characterized in that the stationary part comprises at least one supply connection and the interchangeable part is configured in such a way that the supply connection is connected or disconnected with respect to a corresponding one. power connection of the interchangeable part, when replacing the interchangeable part, to establish or interrupt a power connection.
9. 9. The continuous casting installation according to claim 8, characterized in that the power connection is designed for power supply, cooling means, lubrication means or signals.
10. 10. The continuous casting installation according to one of claims 1-9, characterized in that the conveyor device comprises a lifting device with which the interchangeable part is connectable and which is configured in such a way that the interchangeable part is displaceable from the operative position. to the space below the pouring position.
11. 11. The continuous casting installation according to one of the claims 1-10, characterized in that the conveyor device is made in such a way that the interchangeable part is displaceable from the operative position at least along a partial path in an essentially tangential manner to the guide direction of the bar in the exit opening and / or in a partially rectilinear and / or partially curved path.
12. 12 The installation of oaLada c n ipua efe c i? One of the claims 1-11 is characterized in that the conveyor device is stationary with respect to the ingot mold arrangement.
13. 13. The continuous casting plant according to one of the claims 1-12, characterized in that the continuous casting installation comprises a plurality of ingot mold arrangements, the conveyor device is movably realized and the interchangeable part of each mold slot arrangement is movable. through the conveyor device.
14. 14. The method for replacing an exchangeable part of an ingot mold arrangement of a continuous casting plant according to one of claims 1-13, the ingot mold arrangement comprising an ingot mold and an oscillating holding device for the oscillation of the ingot mold in a pouring position and the interchangeable part at least one component of the ingot mold, and the interchangeable part being detachably linked with a stationary part, including the clamping device, of the ingot mold arrangement and a conveyor device for the transporting the interchangeable part between an operative position and a second position in a space situated below the pouring position, characterized in that the interchangeable part is separated from the stationary part of the ingot mold arrangement and is then moved by means of the conveyor device to the second position.
15. 15. The method according to claim 14, characterized in that the interchangeable part is displaced from the casting position at least in a partial path essentially tangentially to the guidance direction of the bar and / or from the operative position in a partially rectilinear and / or partially curved. SUMMARY OF THE INVENTION An ingot mold arrangement (1) of a continuous casting installation comprising an ingot mold (2a) and an oscillating clamping device (4) for oscillating the ingot mold in a casting position (2a) and is constituted, in a detachable manner , of an interchangeable part (2a) and a stationary part (4, 11, 12, 12 ', 71). For the replacement of the interchangeable part, the interchangeable part of the stationary part is separated and is moved by means of a conveyor device (23) from its operative position (2a) at least along a partial path to a space (29) located at below the pouring position (2a). During the casting process, particularly in multiple casting installations, the interchangeable part can thus be transported, for example along straight rectilinear (23 ') and / or curved (23' ') paths, to any position, suitably selected (2b), and be replaced by a new interchangeable part by reversing said process steps. In the case of multi-casting installations, the substitution of an interchangeable part can be carried out without disturbing the casting process in an adjacent mold-making arrangement.