• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a method and an apparatus for producing hot-rolled products in a cast-rolled composite plant (1). The object of the invention is to provide an interference-free method and a compact cast-rolled composite system (1), with which the total length of a device for cutting and discharging (6) can be reduced, and the investment and operating costs of the casting-rolling Composite system (6) can be reduced. This object is achieved by carrying out the following method steps in the device for cutting and discharging (6) for bridging a production interruption in a plant part which is downstream of the device for cutting and discharging (6): a) cutting off the endlessly produced primary material ( 3) to a strand section (21) by a pair of scissors (9) b) clamping the strand section (21) by a clamping device (23) c) lifting the foot part of the strand section (21) from the roller table (4) by means of a lifting device (11 ), whereby the foot of the strand section (21) in the transport direction (7) of the scissors (9) is pulled away d) cutting of the material (3) passing the scissors (9) to a Vormaterialabschnitt (10) by means of the scissors (9 e) feeding out the starting material section (10) from the roller table (4) by a discharge device (8), and removing the strand section (21) until the operational readiness of the casting W is restored alz composite system (1).
    公开号:AT513299A1
    申请号:T50328/2012
    申请日:2012-08-20
    公开日:2014-03-15
    发明作者:Thomas Dipl Ing Lengauer；Wolfgang Peitl；Roman Dipl Ing Winkler
    申请人:Siemens Vai Metals Tech Gmbh；
    IPC主号:
    专利说明:

    1 201217746
    description
    Method and apparatus for a cast-rolling compound field of technology
    The present invention relates to a method and an apparatus for producing hot-rolled products in a cast-rolling composite plant.
    On the one hand, the invention relates to a method for the production of hot-rolled products in a cast-rolling composite plant, wherein in continuous operation a strand of endless continuously cast starting material after its complete solidification, a device for cutting and discharging on a roller table in a transport direction undivided, i. as a strand, the strand is then hot rolled in a finishing train, then cooled, cut and stored.
    On the other hand, the invention relates to a cast-rolling composite plant for the production of hot-rolled products, comprising - a continuous casting machine for continuously casting a strand of an endless starting material; hereinafter - a cutting and discharging device comprising a pair of shears for cutting the primary material into a strand portion or a preliminary material portion, lifting means for lifting a foot portion of the strand portion, and discharge means for discharging the preliminary material portion; below - a finishing train; below - a cooling section; and subsequently - a memory device.
    Prior Art 2/28 2 201217746
    From the Applicant's WO 2009/121678 A1 a method and a so-called device for cutting and discharging for a cast-rolling composite plant is known, with which it is possible to bridge a disturbance in a plant part after the device for cutting and discharging, without the casting operation in the continuous casting machine having to be interrupted. As a result, the reliability of the system is significantly increased. Specifically, the cutting and discharging device has two shears and a discharge device located between the shears, so that continuously produced primary material can be discharged as a primary material section in the disturbance. In order to prevent a collision between the endlessly produced primary material and the material in the cast-rolling composite plant during the disturbance, a lifting device is arranged after the rear shear. Although this solution has proven very successful in practice, it is disadvantageous that the device for cutting and discharging has a total length of about 15 m. Due to the high length, the strip cools down more on the way to the finishing mill, more scale is produced on the strip, and the investment costs (English CAPEX) and operating costs (English OPEX) are increased.
    As with a comparatively high level of operational reliability, the overall length of the device for cutting and discharging can be reduced and the investment and operating costs of the cast-rolling composite system can be reduced, the document does not show.
    Summary of the invention
    The object of the invention is to overcome the drawbacks of the state of the art and to provide an interference-free method and a compact cast-rolled composite plant with which - a fault in a plant part can be bridged after the device for cutting and discharging, 3 / 28 3 201217746 without doing the continuous casting of the
    Continuous casting machine must be interrupted, - the total length of the device for cutting and
    Extraction can be reduced, and - the investment and operating costs of the casting-rolling
    Composite system can be reduced.
    This object is achieved in the aforementioned method in that for bridging a production interruption in a plant part, which is downstream of the means for cutting and Ausfördern, the following steps in the device for cutting and Ausfördern be performed: a) cutting off the endlessly produced starting material to a Strand section by a pair of scissors; b) clamping the strand section by a clamping device; c) lifting the foot part of the strand section from the roller table by means of a lifting device, whereby the foot of the strand section is pulled away in the transport direction of the scissors; d) cutting the material passing through the scissors into a starting material section by means of the scissors; e) conveying the Vormaterialabschnitts from the roller table through a discharge, and removing the strand section until the restoration of operational readiness of the cast-rolling composite system.
    Immediately after a malfunction has occurred in a plant part located behind the means for cutting and discharging (for example, the one- or multi-stand finishing train), it is continuously produced by a continuous casting machine, for example, for thin slab or slab sections Pre-rolling pre-rolled starting material separated by the scissors. Through this cut creates a strand section which extends from the scissors in the transport direction. The strand section is of 4/28 4 201217746 a clamping device, in the transport direction by the scissors, a lifting device and a
    But before the finishing train is still clamped, so that the foot of the strand section is pulled away by the immediately following lifting of the foot part of the strand section from the scissors, i. is moved in the transport direction. By lifting the strand section not only the roller table, which is assigned to the discharge, freed, but the foot of the strand section moved in the transport direction. Thus, these steps cause the roller table to be cleared in the chopper and chopper, and the foot of the chunk section to be spaced from the still continuously produced stock. Thus, the casting operation of the continuous casting machine in a fault must not be interrupted. The further produced starting material is then cut by the shear on Vormaterialabschnitte, so that these Vormaterialabschnitte be discharged and optionally fed to a recovery in a hot rolling mill. Finally, the raised strand section must be removed until the operational readiness of the cast-rolling composite plant is restored.
    In order to ensure a reliable clamping even with an oily or greasy surface of the strand section, it is advantageous if, during clamping, at least one pair of opposing strand guide rollers is pressed against the strand section by an actuating device.
    It is advantageous if the lifting of the foot part of the strand section by a, typically horizontal lifting bar in the vertical direction. As a result, the underlying roller table is cleared quickly. Here, the lifting beam in the raised state, e.g. extend in a horizontal direction or in an oblique direction. 5/28 5 201217746
    In order to enable utilization of the continuously produced primary material in conventional hot rolling mills, it is advantageous if the shears cut the precursor material passing through the shears to primary material sections with a length of 8 to 14 m. Alternatively, it is possible that the scissors produced so-called scrap pieces with a length of typically about 1 m.
    It is expedient if, during the conveying out, the starting material section is pushed off in the horizontal direction from the roller table. As a result, the space next to the roller table is effectively used for temporarily storing the Vormaterialabschnitte, for example by a stacker.
    In addition, it is expedient to lift the strand section during removal by a crane in the vertical direction.
    Said object is also achieved by a cast-rolling composite system of the type mentioned, in which the means for cutting and conveying additionally comprises a clamping device for clamping the strand section, wherein the clamping device of the lifting device is downstream in the transport direction. By the clamping device ensures that the foot of the strand section is automatically pulled away by lifting the strand section of the scissors. This prevents a collision between the incoming starting material and the strand section.
    Preferably, the scissors is a pendulum scissors or a drum shears.
    It is expedient if the clamping device comprises an actuating device and in a plane normal to the transport direction two strand guide rollers, wherein the strand guide rollers can be pressed by the actuating device to the strand section. Here are the strand guide rollers on the actuator to the 6/28 6 201217746
    Pressed strand section, so is clamped over the frictional engagement between the strand guide rollers and the strand section of the strand section.
    The actuator is particularly robust when it is designed as a hydraulic cylinder. In addition, in a hydraulic cylinder, the clamping force can be easily adjusted and limited by the hydraulic pressure.
    In a simple and functional lifting device, the lifting device comprises at least one lifting cylinder and at least one lifting beam oriented transversely to the transport direction, wherein the lifting beam can be lifted by the lifting cylinder in the vertical direction and lowered again.
    In a simple and functional discharge device, the discharge device comprises at least one Abschubzylinder, wherein a Vormaterialabschnitt can be deported by the Abschubzylinder in the horizontal direction of the roller table.
    In a particularly compact device for cutting and discharging, a lifting device between two discharge devices or a discharge device between two lifting devices is arranged in the transport direction. For example, a lifting device and / or a discharge device is arranged between two roller conveyor rollers following in the direction of transport. As a result, the starting material is sufficiently supported on the roller table, and the lifting device and / or the Ausfördereinrichtung is extremely compact integrated into the roller table.
    Due to the spatial entanglement of the discharge device and the lifting device, the overall structural length of the device for cutting and discharging is greatly reduced. But this also reduces the investment costs and the 7/28 7 201217746
    Operating costs, as the starting material cools less (and therefore less heat must be re-heated by a subsequent heating). Furthermore, this results in less scale on the belt, so that the belt must be less descaled, which in turn cools the belt less. It also improves the quality.
    Alternatively or in addition to the spatial entanglement, it is advantageous if the lifting device in the lowered state and the discharge device are arranged in a single region of a roller table between the scissors and the clamping device.
    Brief description of the drawings
    Further advantages and features of the present invention will become apparent from the following description of non-limiting embodiments, reference being made to the following figures, which show the following:
    1 shows a schematic representation of a casting-rolling composite plant for fully continuous endless operation
    Figure 2 is a schematic representation of a device for cutting and discharging according to the prior art
    3a and 3b are elevational and plan views schematically showing a first embodiment of the fragmenting and conveying apparatus according to the present invention
    4a to 4f a schematic representation of the steps in the device for cutting and discharging to bridge a production interruption
    FIGS. 5a and 5b show an elevation and a plan view in a diagrammatic representation of a second embodiment of the device according to the invention for cutting and discharging
    Description of the embodiments
    FIG. 1 shows a cast-rolled composite installation 1 known from WO 2009/121678 A1. In normal operation, a continuous casting machine 2 continuously produces a starting material 3 in the form of a thin slab strand, which is transported via a roller table 4 to a roughing mill 5. After rough rolling in the roughing train 5, the starting material 3 passes through uncut, i. as a strand, a means for cutting and conveying 6, before the temperature of the starting material is adjusted in a heating section 12 to rolling temperature. After the treatment of the starting material in a descaling plant 13, which is upstream of a finishing train 14, the descaled starting material is rolled in the single or multi-stand finishing train 14. The finished rolled material is then cooled in a cooling section 15, cut by a pair of scissors 16 to a certain product length or product weight, and then cut from a take-up device
    Storage device 17 wound. The roller table 4 connects all parts of the plant between the horizontal strand guide of the continuous casting machine 2 and the storage device 17th
    1, comprising a first scissors 9a, a discharge device 8, a second scissors 9b, a lowerable roller table 18 and a lifting device 11. Immediately after the occurrence of a malfunction in a part of the installation, the downstream of the means for cutting and conveying 6 (eg the finishing train 14 or the winding device 17), the starting material 3 is severed by the second scissors 9b, whereby behind the second scissors 9b a strand section 21 is formed. In order to separate the strand section 21 from the starting material 3, which continues to be produced continuously and follows from the roughing train 5, the strand section 21 is lifted by a lifting device 11. The second shearing 9b 9/28 9 201217746 passing starting material 3 is divided by the scissors 9b on scrap pieces 19, which are discharged via a lowerable roller table 18. Since the scrap pieces 19 are generally difficult to exploit, after the occurrence of the disturbance, the starting material 3 is cut off by a first pair of scissors 9a to precursor material portions 10, each having a length of 8-14 m, the preliminary material portions 10 being transversely across the outfeed unit 8 are transported to the transport direction 7 from the roller table 4. A disadvantage of the device for cutting and Ausfördern 6 according to the prior art is that the length of the device 6 is about 16 m, relatively cools the starting material 3 in continuous operation due to the residence time of the starting material 3 in the device 6th a relatively strong scaling is formed, and that the investment and operating costs of the device for cutting and Ausfördern 6 and the cast-rolling composite system 1 are relatively high.
    FIGS. 3a and 3b show a first embodiment of the device according to the invention for dividing and conveying 6, which no longer has the disadvantages of the solution according to FIG. Apart from the shorter overall length of the device 6, the device 6 according to the invention can also be used with the known cast-rolled composite system 1 of FIG. Specifically, the device for cutting and conveying 6 only only a pair of scissors 9, which is designed either as pendulum scissors or as a drum shears. On the scissors 9 follow in the transport direction 7 two discharge devices 8, between which a lifting device 11 is arranged in the transport direction. The lifting device 11 is shown in Figs 3a, 3b pulled in the lowered position and shown in dashed lines in the raised position. After the rear discharge device 8, a clamping device 23 is arranged, which is designed as a pair of pinch rollers ("pinch rolls"), with which the strand section 21 or the starting material 3 can be clamped. This prevents that the strand section 21 is moved by the lifting 10/28 10 201217746 against the transport direction 7. By clamping, the foot of the strand section 21 shifts in the transport direction 7, so that the subsequent starting material 3 has a sufficient distance from the strand section 21.
    The method steps in the device for cutting and discharging 6 after the occurrence of a fault are shown in FIGS. 4a-4f. Shortly after the occurrence of a malfunction in a plant part downstream of the device for cutting and discharging 6, the endlessly produced starting material 3 coming from the roughing train 5 is cut off by the scissors 9, which are designed as pendulum scissors (FIGS 4a shows the situation before the cut). By cutting a strand portion 21 is formed, which extends from the scissors in the transport direction 7. After the occurrence of the disturbance or prior to lifting of the strand section 21 by the lifting device 11, the strand section is clamped by the clamping device 23, so that the foot of the strand section 21 is not pulled by lifting against the transport direction 7 (Fig. 4b shows the situation immediately before clamping the strand section 21). In FIG. 4 c, the clamped strand section 21 is lifted by the lifting device 11 in the vertical direction, so that the strand section 21 has a vertical offset to the incoming material 3 and the foot of the strand section 21 is pulled away from the shear 9 by lifting in the transport direction 7. Thus, the foot of the strand section 21 to the cutting plane of the scissors 9 has a vertical and a horizontal offset. FIG. 4 d shows that feedstock 3, which is supported by roller table 4, continuously follows from roughing train 5. After the head of the starting material 3 has a certain distance (for example, 10 m) to the scissors 9, the scissors 9 cuts from the starting material 3 a Vormaterialabschnitt 10 from. Immediately after cutting, the starting material section 10 is accelerated by at least one driven roller 20 in the transport direction, so that the Vormaterialabschnitt 10 has a horizontal distance 11/28 11 201217746 for scissors 9 (Fig. 4e shows the situation when accelerating). Finally, the preliminary material section 10 is pushed out of the drawing plane by the two discharge devices 8 before and after the lifting device 11, so that the roller table 4 is cleared between the two discharge devices 8. After the disturbance has been repaired, the strand section 21 is e.g. removed by a crane 22.
    FIGS. 5a and 5b show a second embodiment according to the invention of the dividing and conveying device 6, which can also be used with the cast-rolling composite installation 1 according to FIG. The difference from the first embodiment is that after the scissors 9 in the transport direction, a front lifting device 11, a discharge device 8, a rear lifting device 11 and the clamping device 23 are arranged. As in FIGS. 3 a, 3 b, a strand section can be lifted by the two lifting devices 11. The subsequent starting material 3 is cut by the scissors 9 again to Vormaterialabschnitten 10, which can be deported by the Abschubzylinder 25 of the Ausfördereinrichtung 8 from the rollers 20 of the roller table 4 in the horizontal direction on the storage arms 29 of a stacking device 26.
    In the first and second embodiments of the invention, a Vormaterialabschnitt 10 is viewed in elevation deported from the discharge device 8 of the drawing level out. Of course, it would also be possible to modify the discharge device 8 in such a way that a starting material section 10 is conveyed out into the plane of the drawing. A device suitable for this purpose is known from WO 2009/121678 A1.
    Although the invention has been further illustrated and described in detail by the preferred embodiments, the invention is not limited by the disclosed examples and other variations can be derived therefrom by those skilled in the art without departing from the scope of the invention. 13/28 13 201217746
    LIST OF REFERENCES 1 2 3 4 5 6 7 8 9,9a, 9b 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
    Casting and rolling plant
    continuous casting
    Raw material
    roller table
    roughing
    Device for cutting and discharging Transport direction Scraper device Scissors
    Vormaterialabschnitt
    lifter
    heating section
    Entzünderungsanlage
    Finish rolling line cooling section
    scissors
    Storage device lowerable roller table scrap piece roller
    strand section
    crane
    Clamping device Lifting cylinder Lifting cylinder Stacking device Lifting beam
    actuator
    Storage arm 14/28
    权利要求:
    Claims (14)
    [1]
    14 1. A method for the production of hot-rolled products in a cast-rolled composite plant (1), wherein in continuous operation a strand of continuous continuously cast semi-finished material (3) after complete solidification comprises means for cutting and discharging (6) on a roller table (4) in a transport direction (7) passes undivided, the strand is then hot rolled in a finishing train (14), then cooled, cut and stored, characterized in that to bridge a production interruption in a part of the plant, the means for cutting and Following removal steps (6), the following method steps are carried out in the device for cutting and discharging (6): a) cutting off the endlessly produced primary material (3) into a strand section (21) by means of a pair of scissors (9); b) clamping the strand section (21) by a clamping device (23); c) lifting the foot part of the strand section (21) from the roller table (4) by means of a lifting device (11), whereby the foot of the strand section (21) in the transport direction (7) of the scissors (9) is pulled away; d) cutting the material (3) passing through the scissors (9) to a primary material section (10) by means of the scissors (9); e) conveying the Vormaterialabschnitts (10) from the roller table (4) by a discharge device (8), and removing the strand section (21) to restore the operational readiness of the cast-rolling composite system (1).
    [2]
    2. The method according to claim 1, characterized in that when clamping a pair of opposed rollers (20) by an actuator (28) to the strand section (21) is pressed.
    [3]
    3. The method according to any one of the preceding claims, characterized in that the lifting of the foot part of the strand section (21) by a lifting beam (27) takes place in the vertical direction.
    [4]
    4. The method according to any one of the preceding claims, characterized in that when cutting the scissors (9), the passing starting material (3) on Vormaterialabschnitte (21) with a length of 8 to 14 m cuts.
    [5]
    5. The method according to any one of the preceding claims, characterized in that during the conveying out of the Vormaterialabschnitt (21) is deported in the horizontal direction.
    [6]
    6. The method according to any one of the preceding claims, characterized in that when removing the strand section (21) by a crane (22) is raised in the vertical direction.
    [7]
    7. A cast-rolling composite plant (1) for producing hot-rolled products, comprising - a continuous casting machine (2) for continuously casting a strand of an endless starting material (3); a device for cutting and discharging (6) comprising a pair of scissors (9) for cutting the starting material (3) into a strand section (21) or a starting material section (10); lifting means (11) for lifting a foot section of the strand section (21), and a discharge device (8) for discharging the Vormaterialabschnitts (10) comprises; hereinafter - a finishing train (14); below - a cooling section (15); and subsequently - a memory device (17), characterized in that the means for cutting and discharging (6) additionally comprises a clamping device (23) for clamping the strand section (21), wherein the clamping device (23) of the lifting device (11) in the transport direction (7) is downstream. 16/28 16 201217746
    [8]
    8. Installation according to claim 7, characterized in that the clamping device (23) comprises an actuating device (28) and in a plane normal to the transport direction (7) comprises two rollers (20), wherein at least one roller (20) by the actuating device (28 ) can be pressed against the strand section (21).
    [9]
    9. Plant according to claim 8, characterized in that the actuating device (28) is a hydraulic cylinder.
    [10]
    10. Installation according to one of claims 7 to 9, characterized in that the lifting device (11) comprises at least one lifting cylinder (24) and at least one transversely to the transport direction (7) aligned Hubbalken (27), wherein the lifting beam (27) through the Lifting cylinder (24) can be raised in the vertical direction and lowered again.
    [11]
    11. Installation according to one of claims 7 to 10, characterized in that the discharge device (8) comprises at least one Abschubzylinder (25), wherein a Vormaterialabschnitt (10) by the Abschubzylinder (25) in the horizontal direction from the roller table (4) are deported can.
    [12]
    12. Installation according to one of claims 7 to 11, characterized in that in the transport direction (7) the lifting device (11) between two discharge devices (8) or a discharge device (8) between two lifting devices (11) is arranged.
    [13]
    13. Plant according to one of claims 9 to 12, characterized in that the lifting device (11) in the lowered state and the discharge device (8,8a, 8b) in a single region of a roller table (4) between the scissors (9) and the Clamping device (23) are arranged. 17/28 17 201217746
    [14]
    14. Installation according to one of claims 9 to 13, characterized in that between two in the transport direction (7) subsequent rollers (20) a lifting device (11) and / or a discharge device (8) is arranged. 18/28
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    同族专利:
    公开号 | 公开日
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    IN2015DN00947A|2015-06-12|
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    法律状态:
    2018-04-15| MM01| Lapse because of not paying annual fees|Effective date: 20170820 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50328/2012A|AT513299B1|2012-08-20|2012-08-20|Method and device for a cast-rolled composite plant|ATA50328/2012A| AT513299B1|2012-08-20|2012-08-20|Method and device for a cast-rolled composite plant|
    IN947DEN2015| IN2015DN00947A|2012-08-20|2013-07-04|
    US14/420,395| US9796006B2|2012-08-20|2013-07-04|Method and device for a combined continuous casting and rolling system|
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    RU2015109751A| RU2633674C2|2012-08-20|2013-07-04|Method and device for combined casting-rolling plant|
    PCT/EP2013/064136| WO2014029544A1|2012-08-20|2013-07-04|Method and device for a combined continuous casting and rolling system|
    UAA201501366A| UA113315C2|2012-08-20|2013-07-04|Method and device for a combined continuous casting and rolling system|
    EP13734739.9A| EP2885091B1|2012-08-20|2013-07-04|Method and device for a combined continuous casting and rolling system|
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