EP3535077A1 - Method and transport cart for transporting away steel strands individually cast in a semi-continuous strand casting system - Google Patents
Method and transport cart for transporting away steel strands individually cast in a semi-continuous strand casting systemInfo
- Publication number
- EP3535077A1 EP3535077A1 EP17794716.5A EP17794716A EP3535077A1 EP 3535077 A1 EP3535077 A1 EP 3535077A1 EP 17794716 A EP17794716 A EP 17794716A EP 3535077 A1 EP3535077 A1 EP 3535077A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strand
- hot
- cold
- head
- casting
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/14—Plants for continuous casting
- B22D11/141—Plants for continuous casting for vertical casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/08—Accessories for starting the casting procedure
- B22D11/081—Starter bars
- B22D11/083—Starter bar head; Means for connecting or detaching starter bars and ingots
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
- B22D11/1281—Vertical removing
Definitions
- the invention relates to a method and a trolley for the removal of individually cast in a semi-continuous continuous casting steel strands, wherein at least one perpendicular mold supplied, solidifying in the mold metal melt as a hot strand by means of a dummy strand until it is dependent on the supplied amount of melt and the casting format finished length by lowering a cold strand at its leading in the casting direction leading, lower end lifting means is conveyed vertically downwards into a strand guide region, wherein the strand guide portion is formed by a over its entire length at least to one side open steel support frame, in spaced-apart height levels with the hot strand engageable and this holding in the vertical position guide means, in particular guide rollers, and a play-free guidance of the lifting means is formed, and wherein the Warms Trang taken after the pouring end of a movable on the platform above the strand guide area dolly and can be transported to a provided outside the casting range core solidification position.
- a method of the type mentioned for generating in particular large-sized blocks or steel strands, which may have round, rectangular, hexagonal and octagonal cross-sections, and a trolley, a not yet solidified block from the casting to a core solidification position can be, is known from WO 2016/131437 A2.
- the trolley makes it possible that the hot rod can be transported a short time after the end of the casting from the casting machine designed with one or more strands, so that it is again free for another casting process.
- the hot strand may remain in the steel framework of the casting machine until solidification.
- both in the casting machine and in the at least one core solidification position the hot strand are thermally insulated from the environment by insulating chambers formed by einschwenkbaren segments.
- insulating chambers formed by einschwenkbaren segments.
- targeted, precisely predetermined, more or less accelerated cooling or keeping hot can thus be made possible by opening or closing individual or all chamber segments.
- the hot strand can be removed from the casting machine in a core solidification position, in the known casting plant, when the dolly is placed on the platform between the mold and the steel support frame, the upper end of the hot strand before being transported to solidification intensively cooled and in this then hard end portion of a clamping mechanism, for. B. jaws detected.
- the considerable weight of a large-sized hot strand or block require the secure holding of the very heavy hot strand the high demands on the holding forces corresponding clamping mechanisms.
- the intensive cooling of the upper end also adversely affects the transition region to the subsequent hot strand.
- the invention is therefore an object of the invention to provide a method and a trolley of the type mentioned, with which the production of particular large blocks and their Ausfiln can be optimized using the mechanical means for hiring the strand guiding means in the central shaft of the steel framework.
- This object is achieved by a method according to the invention that after uncoupling of the dummy bar from the over an upper portion with the hot rod fused cold strand gropf the hot strand by one engageable positive locking means and on the other hand in a lower portion of the cold rod head engageable or the dummy bar under cross support means of the trolley when transported unloaded from external forces in a vertical position held and is supported, the guide means of the steel framework provide the hot strand free as soon as the positive locking means have been turned on and the support means have been engaged.
- connection of the cold strand head can be solved, for example, by a wedge breaker, wherein then the cold strand is lowered until re-use down to its final position, while the cold strand head sits with the overlying hot strand on the support means of the trolley.
- the heat strand taken up by the trolley is in quasi free-worn manner in a form-locking cage, namely kept positioned by the employed positive locking means and supported by the supported cold strand head, act exclusively on the support means.
- a preferred measure of the invention provides that the trolley moves the hot strand to a core solidification position in which the hot strand is taken from a trained as in the casting plant, engagable guide means having steel support frame, the positive locking means and the support means of the trolley only the hot strand then release, when the guide means of the steel support frame have been employed on the hot strand and a provided in the core solidification position support means has been raised to the plant to the underside of the cold runner head.
- the trolley free of the hot strand can be moved to a waiting position between the caster and the core solidification position and the suspension means, for.
- a stamp that carries the hot strand under the cold rod head can be lowered until the cold strand head touches down with the hot strand to a storage position in Kernerstarrungs steel support frame.
- the core solidification position can now the core solidification with temperature compensation behavior progressing from the inside out.
- the core solidification position provides space to install, if necessary, a vertically movable electromagnetic stirring device and a post-heating device.
- the course of solidification can advantageously be promoted by the fact that in the free spaces located between the levels of the guide means of the steel framework of the caster and the steel framework of the core solidification position the hot strand thermally shielding against the environment, half-shell-like Isolierhuntsegmente can be pivoted.
- the opening or closing of individual or all Isolierhuntsegmente allows adapted to the respective grade of steel or quality slower or faster solidification of the hot strand.
- All Isolierhuntsegmente be swung out.
- the solidified block is unchanged by the positive locking means and the storage position, for.
- z. B. use a hall crane, provides an advantageous measure of the invention, that formed with the guide means and their Anstellmechanik scaffold side of the steel framework together with the solidified steel strand or block from the vertical position by 90 ° to a horizontal position for storage of the steel strand can be pivoted on a roller table.
- the steel strand or block is thus stored in one operation on the transport roller table, wherein the previous pivoting operation of the Stahltraggerüstseite with the guide means and the solidified block by at least one under the block the large weight additionally catching support role can be favored.
- the steel support frame side After removal of the deposited steel strand or block, the steel support frame side is in its initial position swung back and locked.
- the steel framework of the casting machine is largely identical to the steel framework of the core solidification position, it is within the possibilities given to leave the cast hot strand for solidification in the casting machine and for removal of the steel strand or block there immediately there the pivotable steel support frame side in the horizontal to pivot.
- a trolley which is characterized in that its carriage frame arranged offset on two opposite sides with spaced from the carriage wheels inwards Carrier elements is formed, which extend vertically from the carriage frame down, distributed over its length with a distance from each other in the same planes arranged from a vertically lowered inoperative position in a mutually aligned to horizontal operating position pivotable positive locking means and at its lower ends from a non-operating position have a mutually facing operating position einschwenkbare support means.
- the trolley is moved on rails with gears engaging in racks and guided by resting on the side rack surfaces, trained with path detection rollers from the open side of the steel frame in the casting machine and accurately positioned to remove the hot strand.
- the interlocking means are then turned to the hot strand by pivoting in the horizontal direction and the hollow strand supporting the hot strand via the cold strand head supporting means is engaged or pivoted into a position engaging or engaging the cold strand head.
- the strand guiding means of the steel framework can be swung out in the sequence and the trolley with the dormant in him strand from the caster to the core solidification position be transported.
- a preferred proposal of the invention provides that in each case two columns spaced apart parallel in the carriage frame columns a support element form, wherein the interlocking means mounted in the column spacing bridging brackets and the support means are mounted on on each side of the two columns at their lower ends interconnecting sockets.
- the positive locking means at their free, remote from the consoles top surfaces as adapted to a partial extent of a hot strand contour plates, preferably formed therein freely rotatable mounted rollers, and on the carriage frame down through tie rods together or are each individually pivotable with an associated adjustment.
- the holding the hot strand in a vertical position contour plates favor removal by positive engagement, without having to exert an external force on the hot strand to hold, which is indirectly indirectly over the cold strand head and the engaged in this or him under cross-supporting means is worn. Should it come to a deflection of the hot strand during transport, occur at most from the hot strand outgoing weight-holding forces, which are derived from the preferably integrated in the contour plates roles.
- the support means as at one end a hook head and at its other end a bearing head having, in opposite directions pivotable traverses formed, wherein a first cross member with its bearing head on a vertical bearing pin of a pedestal and a second cross member with its bearing head is arranged on a vertical bearing pin of the other, opposite base, wherein the bearing pins face each other diagonally and engage in the hook heads fixing bolts, which are also provided diagonally opposite each other on one and the other base.
- the positive locking means for raising and lowering are connected via levers to the tie rods and the support means for swiveling in and out via levers with adjusting cylinders.
- Fig. 1 in a schematic representation of an overall view of a casting plant for
- Fig. 2 as a detail of the trolley with it received and held hot strand, seen from the seen in the direction of travel side;
- Figure 4 shows the trolley as a plan view and in section along the line IV-IV of Fig. 2.
- Fig. 6 is a section along the line Vl-Vl of Fig. 2;
- Fig. 7 is a side view of Figure 6, shown without adjusting cylinder.
- Fig. 8 seen in the direction of travel to take over a hot strand in the steel framework of the caster retracted trolley;
- Fig. 9 is a side view of Fig. 8.
- Fig. 1 in a plan view as a detail of the steel framework with the therein in each of the successive spaced-apart height planes arranged on and ausschwenkbaren guide means and einschwenkbaren Isolierhuntsegmenten and;
- Fig. 1 1 as a detail as in Fig. 1 0 in the spaced, successive height levels arranged in the same way Isolierhuntsegmente, in its enveloping the hot strand and shown in its swung-out position;
- Fig. 1 2 a steel framework in plan view, which is formed with a shown in Fig. 1, by 90 ° in the horizontal swing-out frame side.
- a system concept shown in FIG. 1 for producing individually cast steel strands or blocks comprises a casting installation 1, a transport carriage 3 movable on a working platform 2 and a core solidification position KE, in which the trolley emits a not yet solidified hot strand 4 for cooling into a unilaterally open steel support frame 5a (see Fig. 12) taken from the casting plant 1, which is formed with a swung by 90 ° in the horizontal frame side 6.
- a metallic melt from a ladle is fed via a distributor channel 7 a subsequent vertical mold 8, wherein the melt solidifying in the mold 8 as a hot strand 4 by means of a cold strand 9 from the mold 8 vertically downwards in first one with at least one Strangstützrollen trained support segment 10 having strand support area and then in a downstream, vertical strand guide SFB with there further cooling of the hot strand 4 is spent.
- the strand guide region SFB is formed by a steel support frame 5b (see also FIGS. 10 and 11) open to one side, which is subdivided into successive insulating chamber zones Z1 to Z4 and into spaced-apart height planes H1 to H5 at the Hot strand 4 engageable guide means 1 1 has.
- the guide means 1 1 consist of pivoting arms 14 a, which can be set horizontally by hydraulic cylinders 12 and are equipped with strand guide rollers 13, in opposite directions from the opposite sides in steel support frame 5b. 14b.
- pivoting arms 14 a In the free spaces between each two successive height levels H1 to H5 are in the chamber zones Z1 to Z4 below the guide means 1 1 in the steel frame 5b via the steel support frame 5b mounted pivoting lever assemblies 15 the hot strand 4 enclosing Isolierhuntsegmente 16a, 1 6b einschwenkbar.
- FIG. 11 also schematically shows the half-shell-like elements pivoted out of the hot strand 4 into the inoperative position
- Isolation chamber segments 16a, 16b By a linear displacement detection in the hydraulic cylinders 12, the guide rollers 1 3 and their pivot arms 14a, 14b can be positioned on the diameter of the respective hot strand 4 so that no forces can be exerted on the hot strand 4.
- the pivot arms 14a, 14b Before casting a hot or steel strand 4, the pivot arms 14a, 14b are shown with the guide rollers 13 and the Isolierhuntsegmente 16a, 16b in their back and swung out of operation, as shown in broken lines in Figures 1 0 and 1 1.
- the cold strand 9 is moved by a direction indicated by his cable lifting means 17 in Figure 8 cold-strand traverse 18 so far that he heads with his dummy strand 1 9, the outlet end of the vertical mold 8 closes.
- an upper, called Anfahrgeweih connects portion 19a of the cold strand head 19 with the metallic melt. It is then the teilerstarrte in the mold 8 hot strand 4 by lowering a in the steel support frame 5b on two opposite sides guided free, the cold strand 9 at its leading in the casting direction, lower end receiving lifting means in the form of a Hubtraverse 20 (see FIG .. 10 ) discharges into the strand guide region SFB until it reaches its finished length, which depends on the supplied quantity of melt and the casting format.
- the pivot arms 14a, 14b are made with the guide rollers 13 after passing through the Hubtraverse 20 to position for vertical support of the hot strand 4 to this.
- the Isolierhuntsegmente 16a, 16b are successively pivoted into their hot strand 4 enveloping operating position.
- the angled levers 31 of the interlocking means 29 are fastened at their ends remote from the contour plates 32, via the pillars 27a, 27b and 28a, 28b, respectively laterally outwardly projecting ends to a common drawbar 34.
- the tie rods 34 are acted upon by a lifting cylinder 35 installed vertically to each pair of columns, so that the positive locking means 29 from its downwardly pivoted out of operation position, as shown in phantom in Figure 2 top left, in the illustrated in Figures 2 and 4 by solid lines horizontal Swing in the operating position inwards, in which they partially enclose an acquired hot strand 4.
- 28 support means 36 are formed for the cold rod head 19 at the lower ends of the support elements 27,.
- the pillars 27a, 27b, 28a, and 28b adjacent to each side are edged by a pedestal 37 on which vertical bearing bolts 38a, 38b and, on the other hand, fixing bolts 39a, 39b are provided diagonally opposite one another.
- the support means 36 consist of two trusses 40a, 40b, which are pivoted on and pivoted by means of cylinders 37 pivoted on the pedestals 37, the cylinders 41 via levers 42 on the bearing pins 38a, 38b arranged bearing heads 43 of the trusses 40a, 40b attack.
- the arranged at the lower end of the support members 27, 28 of the trolley 3 traverses 40a, 40b are pivoted into or under a lower portion 19b of the cold runner head 19, as shown in Figure 8, after which the connected by a wedge 21 with the cold leg 9 cold rod head. 1 9 is separated by a wedge presser from the cold strand 9.
- the dummy bar 9 is driven further down, and the cold strand head 19 with the hot strand 4 sits on the trusses 40a, 40b.
- the guide means 1 1 of the steel support frame 5b are pivoted away from the hot strand or block 4, so that the hot strand 4 is released and employed by the employees to the hot strand 4, d. H. is held in its operating position pivoted positive locking means 29.
- the thus acquired hot strand 4 is spent by the trolley 3 in the core solidification KE with there again exact positioning and passed to the local steel support frame 5a (see Figure 12), which can be formed exactly as the steel support frame 5b of the caster 1 and consequently also in the different height levels H1 to H5 and in the chamber zones Z1 to Z4 arranged, in and out swinging guide means 1 1 and Isolierhuntsegmente 16a, 16b may have.
- Below the steel scaffold 5a of the core solidification position KE is in alignment with the positioned hot strand or block 4, a support means 46 in the form of a punch arranged (see Fig.
- the support means 46 which carries the cold strand head 1 9 with the strand can be driven down and the cold strand head 19 are placed with the hot strand 4 on a storage position 47 in the steel support frame 5a.
- the core solidification with temperature compensation behavior can progress from the inside to the outside.
- the insulating chambers 16a, 16b are pivoted to their inoperative position, while the block is kept unchanged by the guide means 1 1 and the horizontal bearing position 47 under the cold extruder head 19 in the vertical position.
- the steel support frame 5a of the core solidification position KE is formed with a scaffold side 6 which can be swiveled out by 90 ° into the horizontal (see Fig. 1), at which all the guide means 11, ie with their hydraulic cylinders 12, pivot arms 14a , 14b and guide rollers 13, are attached.
- the solidified block 4 together with the guide means 1 1 for further transport of the block 4 in a subsequent processing station immediately on a Transport barrel (not shown) are stored, during the pivoting operation, at least one support roller 48 can catch the weight of the block 4 from below , If the core solidification process is to be carried out in the caster 1, it is advisable to have the steel cradle 5b there likewise with a swing-out framework side 6 provide and the solidified block 4 right in the caster 1 to pivot to the horizontal level of a transport Abrollgangs.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016013151 | 2016-11-07 | ||
PCT/EP2017/078436 WO2018083331A1 (en) | 2016-11-07 | 2017-11-07 | Method and transport cart for transporting away steel strands individually cast in a semi-continuous strand casting system |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3535077A1 true EP3535077A1 (en) | 2019-09-11 |
Family
ID=60268373
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17794716.5A Withdrawn EP3535077A1 (en) | 2016-11-07 | 2017-11-07 | Method and transport cart for transporting away steel strands individually cast in a semi-continuous strand casting system |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3535077A1 (en) |
WO (1) | WO2018083331A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113426970B (en) * | 2021-06-11 | 2023-02-03 | 一重集团大连工程技术有限公司 | Vertical semi-continuous production device and production process of large round billets with phi of 1000 mm-2000 mm |
CN113714479A (en) * | 2021-09-14 | 2021-11-30 | 泰戈精炼(北京)工程技术有限公司 | Vehicle type casting blank conveying device, vertical semi-continuous casting machine and casting process |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT512681B1 (en) * | 2012-03-22 | 2016-08-15 | Primetals Technologies Austria GmbH | Apparatus and method for the continuous continuous casting of a large-sized steel strand |
US10155263B2 (en) * | 2012-09-28 | 2018-12-18 | Ati Properties Llc | Continuous casting of materials using pressure differential |
WO2016131437A2 (en) | 2015-02-19 | 2016-08-25 | Pes Consulting Zajber E.K. | Method and installation for producing steel strands |
-
2017
- 2017-11-07 WO PCT/EP2017/078436 patent/WO2018083331A1/en unknown
- 2017-11-07 EP EP17794716.5A patent/EP3535077A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
WO2018083331A1 (en) | 2018-05-11 |
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