EP4072746A1 - MODULARE WALZSTRAßE, INSBESONDERE WARMWALZSTRAßE, VORZUGSWEISE IN VERBINDUNG MIT EINER VORGESCHALTETEN GIEßEINRICHTUNG - Google Patents
MODULARE WALZSTRAßE, INSBESONDERE WARMWALZSTRAßE, VORZUGSWEISE IN VERBINDUNG MIT EINER VORGESCHALTETEN GIEßEINRICHTUNGInfo
- Publication number
- EP4072746A1 EP4072746A1 EP20820362.0A EP20820362A EP4072746A1 EP 4072746 A1 EP4072746 A1 EP 4072746A1 EP 20820362 A EP20820362 A EP 20820362A EP 4072746 A1 EP4072746 A1 EP 4072746A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- unit
- modules
- module
- modular
- rolling mill
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/22—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories for rolling metal immediately subsequent to continuous casting, i.e. in-line rolling of steel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/001—Convertible or tiltable stands, e.g. from duo to universal stands, from horizontal to vertical stands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B1/24—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
- B21B1/463—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a continuous process, i.e. the cast not being cut before rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B1/24—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
- B21B1/26—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process by hot-rolling, e.g. Steckel hot mill
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/02—Rolling stand frames or housings; Roll mountings ; Roll chocks
- B21B2031/026—Transverse shifting the stand
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
Definitions
- Modular rolling mill in particular hot rolling mill, preferably in connection with an upstream casting device
- the invention relates to a modular rolling train, in particular a hot rolling train, preferably in connection with an upstream casting device, as well as a method for operating a modular rolling train.
- starting products are formed.
- starting products are formed from a primary forming to an intermediate or final dimension in the hot state.
- the hot rolling mills can, for example, be connected directly to a continuous caster.
- a hot rolling mill has an equalizing or heating furnace for heating and / or homogenizing the preliminary product to the desired forming temperature and further units.
- these units are then built up one after the other in a line to form a rolling train.
- these are roll stands, transport lines, cooling devices, separating devices, heating devices and / or surface treatment devices. This creates a rolling train that can only be adapted with great effort.
- the object of the invention is therefore to develop a rolling train in such a way that it can be flexibly adapted to different finished products, process management, dimensions, materials and / or quality requirements.
- invention
- a rolling train is divided into discrete unit (s) and has at least one discrete unit (s) at least two modules (m). At least one module (m) of the subdivided discrete unit (s) can be exchanged for another module (m) by means of a transport device assigned to the discrete unit (s), preferably automatically and / or with automatic means.
- the discrete units and / or modules form technical and / or process or material engineering units through which the rolling train and thus the process management can be optimized and / or adapted in such a way that certain properties of a finished product and / or alternative or .new finished products can be produced.
- This also includes optimizing the productivity of the rolling train if, for example, a furnace module can be replaced faster than the time required to adapt the furnace process parameters for a changed finished product.
- the exchange of the modules with one another can be faster and more uncomplicated than when a normal rebuilding process of the rolling train takes place, such as B. in a maintenance shutdown.
- the exchange preferably takes place laterally and essentially perpendicularly, particularly preferably perpendicularly, to the longitudinal extent of the passage section. This is supported in particular by a systematic standardization of the modules used.
- the interfaces of the modules should comply with uniform standards with regard to media supply, positioning, control or regulation. This also makes it easier to replace modules during maintenance work.
- An exchange with an automatic means preferably takes over the essential work steps when exchanging two modules and reduces the manual activity.
- At least one subdivided discrete unit is preferably formed by a technical system, in particular by a roughing unit, a finishing unit, at least one transport unit and / or at least one heat treatment unit of the rolling train and a module of the subdivided discrete unit is formed by an assembly of the technical unit, preferably by a Roll set of a roughing stand, a set of rolls of a finishing stand, a roller table, an encapsulated roller table, an oven module, a cooling section, a separating system, a surface treatment system and / or measuring device.
- a technical system in particular by a roughing unit, a finishing unit, at least one transport unit and / or at least one heat treatment unit of the rolling train
- a module of the subdivided discrete unit is formed by an assembly of the technical unit, preferably by a Roll set of a roughing stand, a set of rolls of a finishing stand, a roller table, an encapsulated roller table, an oven module, a cooling section, a
- modules assigned to a discrete unit are at least interchangeable with one another.
- different modules can be used within the discrete unit and for different process controls to be implemented as a result.
- a furnace module in a multi-part furnace unit can be replaced by a cooling section or a roller table. Because it can be used in different positions as a replacement and / or inside and / or in addition to the furnace unit, very different heat treatment processes can be flexibly implemented.
- modules can be exchanged with one another by means of a transport process between the respectively assigned transport devices. This allows modules that fulfill similar functions to be used with or in different discrete units.
- a roller table can be used both between the roll stands and in the area of a furnace unit.
- a base length preferably 0.25 m to 5 m, even more preferably 0.25 m to 1 m, is preferably present for dividing the rolling train into a length grid and the dimensions of the discrete units and / or the modules of the rolling train correspond to a base length or are integer multiples of the base length. This represents a simple way of standardizing the units or modules. Even if parts of the rolling train are constructed as conventionally permanently installed units, this design facilitates maintenance and, if necessary, a conversion of the rolling train.
- a subdivided discrete unit is formed by a heat treatment unit and at least one module of the
- the heat treatment unit is formed by an oven, roller table, encapsulated roller table, cooling section, surface treatment and / or measuring section module.
- the targeted heat treatment is an essential factor for the setting of the properties of the finished product. With an improved adaptability of the line, new properties or
- At least one furnace module is designed as a roller hearth furnace module or as an induction heating module. By exchanging these modules, ideal temperature control can be implemented quickly during the heat treatment, which is not possible or cannot be changed with permanently installed systems in this form and / or speed. Furthermore, it is preferred if a subdivided, discrete unit is formed by a roughing unit and at least one module of the roughing unit is formed by a roughing stand, preferably with two driven work rolls and / or two backup rolls. In particular, by adapting the set of work rolls with a diameter difference of> 6%, preferably> 10% in the area of the roughing, it is possible to react quickly to a changed cast product or starting product.
- a subdivided, discrete unit is formed by a finishing rolling unit and at least one module of the finishing rolling unit is formed by a finishing rolling stand, preferably with two driven work rolls and / or two backup rolls.
- modules in this unit it is possible, in particular, to respond to material properties, product properties and / or quality requirements.
- the existing work rolls in a roll stand can be exchanged for work rolls that have a diameter difference of> 6%, preferably> 10%.
- the working and / or back-up rolls are interchangeable.
- cooling sections, roller tables or heating devices can also be exchanged.
- the rolling train is preferably a hot rolling train.
- hot rolling mills high furnace temperatures are usually provided and a change in temperature control requires a correspondingly long time in systems known from the prior art. For example, by replacing a hot furnace module with a colder module, the temperature curve can be adapted much more quickly to a changed specification.
- Different cast products preferably different materials and / or dimensions
- the cast products usually do not cool down to ambient temperature. However, this may be necessary for certain material groups or types.
- a possibility for outward or inward transfer and targeted heat treatment of the cast products should preferably be provided.
- a casting device preferably upstream of the hot rolling train
- the cast products in particular thin slabs, slabs or billets
- Roll gap adjustment be advantageous. In the case of cast products from continuous casting, optimization with regard to the materials is usually the most effective. Ideally, the caster is a continuous caster and for
- the mold is exchangeable.
- the throughput of the continuous caster can be varied quickly with a fixed number of cast strands. This enables production output and quality to be matched to one another, and the associated hot rolling mill can also be adapted by exchanging modules.
- Finishing rolling unit has at least two modules.
- the basic structure of this corresponds to a conventional hot rolling mill, which can be flexibly adapted to different dimensions and materials thanks to the modularization according to the invention.
- the finished product here is preferably a hot strip or a blank or a black rod.
- the modular rolling train can be adapted to different materials and dimensions by a preferred exchange of modules, preferably the modules of the heat treatment unit between the roughing and finishing rolling units, and at least one of the two rolling units.
- a higher-level control or regulation for the hot rolling mill and controls or regulations associated therewith for the discrete units and / or modules present and by the higher-level control or regulation, a preferably automatic exchange of modules can be initiated and preferably carried out.
- the modularization increases the flexibility and complexity of a hot rolling mill significantly compared to a hot rolling mill corresponding to the state of the art. A corresponding control or regulation simplifies the system management and the targeted optimization of the hot rolling mill for different process management and / or finished products.
- the object of the invention is achieved by a method for operating a modular hot rolling mill, preferably according to one of claims 1 to 15, with the features of claim 16.
- the process control is in The hot rolling mill is adapted on the basis of specified production parameters by the following work steps: Checking the modules present in the flow section to determine whether the production parameters can be achieved by adapting at least one of the modules, in particular roll gap adjustments and / or cooling parameters. Replacement, preferably automatic replacement, of unsuitable modules with modules that are suitable for compliance with the production parameters.
- the exchange of unsuitable modules in particular an automatic exchange, enables the hot rolling mill to be adapted to changed requirements without the need for a complex conversion.
- the time required for the replacement can be reduced to such an extent that replacing a module does not mean any significant business interruption.
- the modules are preferably exchanged within 90 minutes, more preferably 30 minutes, even more preferably 10 minutes.
- the exchange is particularly preferably carried out laterally to the flow path, most preferably laterally and perpendicular to the longitudinal extent of the flow path.
- An exchange by means of a transport device means in the sense of the invention that a module of the Hot rolling mill can be replaced by another.
- a module of the Hot rolling mill can be replaced by another.
- couplings to adjacent modules and / or connecting components are first released. Then the module is moved out by a horizontal and / or vertical shift and another module is brought to this position.
- the media supply should ideally remain in place. In this way, for example, furnace temperatures or atmospheres can be maintained.
- the two modules can be detachably attached to a common device and the exchange takes place via a transverse displacement on a rail structure. The module that is not in the flow path can then, if necessary, be detached from the device and replaced by another. This significantly increases the flexibility and adaptability of the rolling mill during operation.
- the preferred higher-level control or regulation suggests alternative formats and / or materials if no modules suitable for maintaining the production parameters are interchangeable. This avoids incorrect production and increases process reliability, especially when a large number of different modules are in stock. This alternative suggestion makes sense with a view to a logical production planning with existing as well as with missing general production planning of steelworks and rolling mills.
- the higher-level control or regulation for the control or regulation of the rolling train preferably the hot rolling train, uses process models for discrete units and / or modules. This simplifies the optimization of the process specifications and improves the quality of the finished product.
- the higher-level control or regulation ideally exchanges data with production planning. This means that the required modules can be prepared before the exchange. This can cause a production interruption and / or the run-up curve can be shortened. For example, an oven module can be heated to a target temperature outside the line.
- the higher-level control or regulation optimizes the production sequences in connection with production planning in terms of material, dimensions, throughput and / or deadline. This allows the number of exchanges to be reduced to a necessary minimum.
- FIG. 1 Plant diagram of the rolling mill
- Figure 2 System scheme for a hot rolling mill with a continuous caster
- Figure 3 Module exchange with transport device using the example of a
- FIG. 1 shows a diagram of a rolling train 1 with a division into discrete units n with ni to n x . Some of the discrete units n have at least one subdivision into modules m with mi to m y .
- the rolling train 1 is divided into the discrete units of heat treatment unit n 2 , roughing unit n 3 , finishing unit n and transport unit n 5 .
- the discrete units n 2 and n 3 have interchangeable modules m in this example.
- the modules are exchanged by means of a transport device T assigned to the discrete unit.
- FIG. 2 shows a schematic representation of a hot rolling mill 1 for a metallic flat product with an upstream continuous caster 6.
- the continuous caster 6 consists of at least one discrete unit 6 , which Hot rolling mill 1 has, as discrete units n, a preheating unit n 2i , a pre-rolling unit n 3 , an intermediate heating unit n 2 2, a finishing rolling unit n, a transport unit n 5 and a winding unit n 8 , as well as various separating units n 7 .
- the rolling train 1 can have further units, such as, for example, scale washers, possible induction heating devices, etc. in addition to the modules or units shown in the figure.
- the discrete unit n 6 of the continuous casting plant 6 has an exchangeable module m in the form of the mold.
- the mold m 6.i as module m of the continuous casting plant 6 can be designed in the form of a funnel.
- a parallel mold m 6 .2 is available as an exchange module.
- a funnel-shaped mold can be used to reduce the thickness during the solidification process. It is particularly suitable for casting thicknesses in the range from 100 mm to 130 mm. With a parallel mold m 6 .2, particularly rapid solidification and a large casting thickness can be achieved. It can be used for greater casting thicknesses, for example 150 mm, and preferably for the production of peritectic materials and tubular steels.
- the preheating unit n 2i is designed as a non-modular, discrete unit n. According to the invention, however, this could be replaced by a discrete unit with at least one exchangeable module. Thus, comparable modules m could be interchangeable with the intermediate heating unit m 22 described later.
- the pre-rolling unit n 3 is in this embodiment as a two-stand
- the number of stands can usually vary between 1 to 3.
- the exchangeable modules m are the work roll sets m 3, i and m 32, which have different diameter ranges.
- the work roll diameter ranges between the two sets of rolls differ beyond the usual stock removal range of a work roll of around 10% and allow changed forming conditions to be set.
- a work roll module m 3.i can have a diameter range of 1050 mm to 950 mm and is used for rough rolling of large cast thicknesses of up to 150 mm.
- the exchangeable work roll module m 3 .2 can, for example, have a diameter range of 950 mm to 850 mm.
- the exchange of modules in the form of a set of work rolls for another set of work rolls with a different work roll diameter range produces a roll gap adjustment within the meaning of the invention.
- the module exchange of the work roll sets m 3.i, m 32 is carried out by a transport device T in the form of a work roll changing device, which removes the work rolls to be changed from the stand and brings in the exchange rolls.
- the intermediate heating unit n 22 is designed in the form of a discrete unit with a fixed portion and four modules m 22.i, m 222 , m 22 and m 225 .
- the two modules m 22.i and m 222 are available as individual
- Roller hearth furnace modules executed and arranged one behind the other along the passage D.
- the modules m 22 and m 225 are available as exchange modules in the form of open roller tables.
- Other module compositions are also conceivable as a result.
- the number of modules along the passage D from m 22.i to m 22 x can be selected to be as large as desired, and the same applies to the number and / or type of exchange modules. So can in a A variant (not shown) a single roller hearth furnace module m 22.i installed in the passage section (D) can be exchanged for a single open roller table module m 22 or alternatively for an encapsulated roller table module m 226 or alternatively a cooling section m 227 etc.
- a hall crane can be used as the transport device T; automatable ones are preferred
- the finishing rolling unit n 4 of the present exemplary embodiment is designed as a non-modular, discrete unit.
- the finishing rolling unit n is driven as a 6-stand finishing rolling train in 4-roll construction
- finishing rolling mill n can also be designed as a modular, discrete unit. Then, following the principle of the roughing unit n 3, exchange modules with different work roll diameters or cooling devices can be used, but other exchange modules in the form of intermediate stand devices, such as
- Interstand heating devices are provided.
- the rolling train 1 also has a transport unit n 5 , in the exemplary embodiment with an integrated cooling section module m 54 , and a winding unit n 8 .
- the various possible embodiments of the cooling section module m 54 and the winding unit n 8 are known to the person skilled in the art from the prior art.
- the control device C shown here is connected in terms of signaling to those discrete units n which have modules m.
- these are the continuous caster 6 with the modules m 8.i and m 8.2 , the pre-rolling unit n 3 with the modules m 3.i and m 32 , and the intermediate heating unit n 22 with the modules m 22.i, m 222 , m 224 and m 22.5 .
- FIGS. 3a and 3b show schematically the exchange of a module m with a transport device T using the example of an intermediate heating unit n 22 and a transport unit n 5 in a side view (FIG. 3a) and top view (FIG. 3b).
- FIG. 3 shows various transport devices T and designs combined with one another for exemplary purposes.
- the intermediate heating unit n 2 2 consists of three modules m 2 2 .i, m 222 and m 223 , which are arranged one behind the other in the flow path D and are used as
- Roller hearth furnace modules are executed.
- Each of the modules m is mounted on a rail system S1 belonging to the transport devices T, which extends transversely to the passage in the direction of the double arrow P1 and on which the module m that can be moved into and out of the passage can be transported.
- this rail system is shown in dash-dotted lines.
- Two exchange modules are mounted in a position adjacent to the direction of flow; in the present case, an open roller table m 22 and an encapsulated roller table m 226 are positioned parallel to the flow path D.
- the roller hearth furnace module m 223 can be exchanged with the open roller table module m 22 at the same time, by means of a connected operation, in a simple, partially or fully automated manner.
- the cylinder Ti as a further component of the transport device T, is coupled to the roller table module m 22 and the two modules are shifted together perpendicularly to the run-through section D so that the roller table module m 22 is now positioned in the run-through section.
- Roller hearth furnace module m 222 is shown, either the m 22 or the m 22.6 module can be used as an exchange module.
- a second rail system S2 belonging to the transport device T must be provided parallel to the passage D, which runs through a double line with a full and dashed line in the direction of the arrow P2.
- a drive device T 2 belonging to the transport device T in this variant as a motor with pinion and rack, turns the roller hearth furnace module m 222 from the Passage route D transported out onto the axis of the transport route in the direction of arrow P2 and then moved on the set of rails S2.
- the modules located on the rail set S2 m is moved so that the module m 2 2.6 is located in front of the rail system of the transport means of the central module and are then transported to the transfer line D can.
- the roller hearth furnace module m 22.i can also be exchanged.
- the exchange of modules m between two discrete units n is shown with a view of the transport unit n 5 .
- the transport unit n 5 has two roller table modules
- the transport options correspond to those in the description of the intermediate heating unit n 22 .
- the transport unit n 5 is assigned an additional inductive heating module m 5 .3.
- the roller table module m 5 .2 can be exchanged for the roller table module m 224 assigned to the intermediate heating unit n 22 , for example for repair reasons. The positioning and the shift in the direction of the arrows P1 and P2 take place as already described.
- the inductive heating module m 5 .3 assigned to the transport unit m 5 can replace the roller table module m 5.i within the transport unit n 5 and thus increase the overall heating output; alternatively, it can be placed in any position within the intermediate heating unit n 22 if required.
- the exchange of modules m between two different discrete units n can thus additionally expand the flexibility of the entire system.
- FIG. 4 shows an exemplary embodiment for the mode of operation of a higher-level control C.
- the control unit C receives data on the target product to be manufactured with regard to the alloy, the dimensions and the metallurgical properties.
- the control unit C must know the current composition of all discrete units up to n x with their modules r to m y in the flow path D and the exchange modules.
- a current system configuration results from this compilation.
- the control unit makes extensive calculations for this. It is useful if the control device for the calculations is linked to other calculation systems or can exchange data.
- a link with a casting model or a pass schedule calculator can support and simplify the calculation required for the decision. Further links to a cooling model, a profile and flatness model, an energy consumption calculation, for example based on a model, and other models can be provided.
- a modified target product is set.
- a new target product even a short downtime for a necessary module replacement can be avoided in favor of increased productivity and products that can be manufactured on a uniform system assembly of all discrete units can be manufactured as a sequence. For this reason, it is helpful to link the setting of the new target product with a production planning system or production control plan.
- the link with maintenance planning which for example provides regular intervals for changing rolls or molds, can also influence this decision.
- the control unit determines the necessary combination of the modules m, in connection with the combination of all discrete units n in the flow path.
- the necessary exchange of those modules m is initiated, the exchange of which is necessary in order to achieve the required combination to reach. This means that a new, updated compilation of all discrete units n with modules m in the flow path D is ready for the production of the target product.
- the system configuration has changed and production can be initiated.
- control can also incorporate a change in an operating mode for manufacturing a target product.
- This is shown in FIG. 4 with the dashed additional queries and specifications.
- the operation of a hot rolling mill 1 in different operating modes increases its flexibility and its production range. Operating modes from continuous production to batch operation, as well as various intermediate forms, are known to the person skilled in the art from the prior art and are not described in further detail here. In connection with the modular structure of the hot rolling mill 1, even greater flexibility and an even larger production range can be achieved if several operating modes are available.
- the current operating mode must be known for the operation of the control. If the question about the production of an alternative target product is answered in the negative, it is subsequently determined whether the intended target product can be produced using a different operating mode. For this purpose, the control makes various calculations that can be supported by the models etc. already listed. If the question is answered in the affirmative, the operating mode is changed and the production of the target product is thereby enabled. If the question is answered in the negative, the usual subsequent step to determine the necessary combination of the modules m is initiated.
- the control device C can be connected online with the hot rolling mill 1 and / or continuous casting plant 6 for signaling purposes. But it can also work offline. Offline operation can simulate production sequences and thus pre-optimize production planning in advance.
- a step takes place from a selective consideration of individual units to an overall system consisting of connected units n with modules m.
- the compilation of the modules m in Connection with the sum of the discrete units n within the throughput section D, but also as available exchange modules, allow the entire hot rolling plant to be expanded in terms of its flexibility and its possible production range.
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Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019219318 | 2019-12-11 | ||
| DE102020206174 | 2020-05-15 | ||
| PCT/EP2020/084376 WO2021115900A1 (de) | 2019-12-11 | 2020-12-03 | MODULARE WALZSTRAßE, INSBESONDERE WARMWALZSTRAßE, VORZUGSWEISE IN VERBINDUNG MIT EINER VORGESCHALTETEN GIEßEINRICHTUNG |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP4072746A1 true EP4072746A1 (de) | 2022-10-19 |
| EP4072746C0 EP4072746C0 (de) | 2025-04-09 |
| EP4072746B1 EP4072746B1 (de) | 2025-04-09 |
Family
ID=73740379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20820362.0A Active EP4072746B1 (de) | 2019-12-11 | 2020-12-03 | Modulare walzstrasse, insbesondere warmwalzstrasse, vorzugsweise in verbindung mit einer vorgeschalteten giesseinrichtung |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US12269080B2 (de) |
| EP (1) | EP4072746B1 (de) |
| JP (1) | JP7393549B2 (de) |
| CN (1) | CN114786830B (de) |
| DE (1) | DE102020215770A1 (de) |
| WO (1) | WO2021115900A1 (de) |
Family Cites Families (49)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| LU41334A1 (de) * | 1961-05-23 | 1963-03-02 | ||
| FR1512480A (fr) | 1966-12-26 | 1968-02-09 | Lorraine Laminage | Installation d'échange des cylindres d'un train de laminoir |
| GB1385494A (en) | 1972-01-27 | 1975-02-26 | British Steel Corp | Rolling mills |
| JPS51107254A (ja) * | 1975-03-19 | 1976-09-22 | Hitachi Ltd | Renzokuchuzoyono chokusetsuatsuen |
| US4038857A (en) | 1976-04-26 | 1977-08-02 | Blaw-Knox Foundry & Mill Machinery, Inc. | Hydraulic mill stand |
| JPS6117303U (ja) | 1984-07-09 | 1986-01-31 | 日産自動車株式会社 | 車両用ホイ−ルの取付構造 |
| JPS62275508A (ja) | 1986-05-21 | 1987-11-30 | Hitachi Ltd | 六段圧延機 |
| JPS6313601A (ja) | 1986-07-03 | 1988-01-20 | Kawasaki Steel Corp | 熱間連続仕上圧延機 |
| JPS6313603A (ja) | 1986-07-04 | 1988-01-20 | Hitachi Ltd | 圧延機 |
| AT390392B (de) | 1986-11-24 | 1990-04-25 | Andritz Ag Maschf | Walzwerk, insbesondere kaltwalzwerk |
| JPH0745049B2 (ja) | 1987-07-30 | 1995-05-17 | 株式会社日立製作所 | 圧延機の軸受箱 |
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| JPH0688055B2 (ja) | 1988-01-14 | 1994-11-09 | 株式会社日立製作所 | 圧延機、及び圧延設備 |
| TW245661B (de) * | 1993-01-29 | 1995-04-21 | Hitachi Seisakusyo Kk | |
| US5564178A (en) | 1993-09-10 | 1996-10-15 | Kyoei Steel Ltd. | Process of producing a hot coil and a production system of producing the same |
| JP3174457B2 (ja) * | 1994-05-17 | 2001-06-11 | 株式会社日立製作所 | 連鋳直結熱間圧延設備およびその圧延方法 |
| IT1281442B1 (it) | 1995-10-27 | 1998-02-18 | Danieli Off Mecc | Procedimento di laminazione per nastri e lamiere e linea di laminazione che concretizza tale procedimento |
| IT1290743B1 (it) | 1997-04-10 | 1998-12-10 | Danieli Off Mecc | Procedimento di laminazione per prodotti piani con spessori sottili e relativa linea di laminazione |
| JP3051695B2 (ja) * | 1997-04-15 | 2000-06-12 | 住友重機械工業株式会社 | ミルハウジング交換装置 |
| FR2786415B1 (fr) | 1998-11-30 | 2001-02-09 | Kvaerner Metals Clecim | Laminoir equipe de moyens de cambrage des cylindres de travail |
| RU2252829C2 (ru) * | 2000-05-23 | 2005-05-27 | ОАО "Артемовский завод по обработке цветных металлов - АЗОЦМ" | Универсальный модуль производства металлопроката и изделий |
| DE10046426A1 (de) | 2000-09-20 | 2002-03-28 | Sms Demag Ag | Kombinierter Antrieb für ein Vierwalzen- bzw. Sechswalzengerüst sowie Betriebsverfahren hierfür |
| JP3274678B1 (ja) | 2001-01-16 | 2002-04-15 | 川崎重工業株式会社 | 圧延機および圧延方法 |
| FR2851942B1 (fr) | 2003-03-05 | 2006-04-28 | Procede de changement de configuration d'un laminoir et laminoir perfectionne pour la mise en oeuvre du procede | |
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| DE102004007831A1 (de) * | 2004-02-18 | 2005-09-01 | Sms Demag Ag | Verfahren und Einrichtung zum Wechseln von Walzensätzen in Walzgerüsten einer Walzstraße |
| JP4711637B2 (ja) | 2004-03-18 | 2011-06-29 | 新日鉄エンジニアリング株式会社 | スキンパスミルのワークロール組替装置及び組替方法 |
| CN100413610C (zh) | 2005-11-30 | 2008-08-27 | 宝山钢铁股份有限公司 | 一种防止带钢在热轧过程中出现头部弯曲的控制方法 |
| AT504209B1 (de) | 2006-11-16 | 2008-04-15 | Voest Alpine Ind Anlagen | Walzenwechseleinrichtung mit keilverstelleinrichtung |
| DE102008029581A1 (de) | 2007-07-21 | 2009-01-22 | Sms Demag Ag | Verfahren und Vorrichtung zum Herstellen von Bändern aus Silizum-Stahl oder Mehrphasenstahl |
| DE102008020412A1 (de) * | 2007-08-24 | 2009-02-26 | Sms Demag Ag | Verfahren und Vorrichtung zum Herstellen eines Metallbandes durch Gießwalzen |
| CN201172064Y (zh) | 2007-12-26 | 2008-12-31 | 宝山钢铁股份有限公司 | 精轧轧制线高度调整装置 |
| DE102008009902A1 (de) | 2008-02-19 | 2009-08-27 | Sms Demag Ag | Walzvorrichtung, insbesondere Schubwalzengerüst |
| EP2258491A1 (de) * | 2009-06-04 | 2010-12-08 | Siemens Aktiengesellschaft | Rotationswerkzeug für eine Walzstraße und Verfahren zum Betrieb einer Gieß-Walz-Verbundanlage |
| JP5491090B2 (ja) | 2009-07-22 | 2014-05-14 | 三菱日立製鉄機械株式会社 | 圧延機及びそれを備えたタンデム圧延機 |
| DE102009036378A1 (de) | 2009-08-06 | 2011-02-17 | Sms Siemag Ag | Verfahren und Vorrichtung zum Herstellen eines mikrolegierten Stahls, insbesondere eines Röhrenstahls |
| IT1400002B1 (it) | 2010-05-10 | 2013-05-09 | Danieli Off Mecc | Procedimento ed impianto per la produzione di prodotti laminati piani |
| BR112012027654B1 (pt) | 2011-09-20 | 2018-03-13 | Mitsubishi-Hitachi Metals Machinery, Inc. | Laminador a frio para laminar uma tira de aço, sistemas de laminação em tandem e de laminação inversor, e, métodos de modificação de um sistema de laminação e operacional de um laminador a frio |
| DE102013224633A1 (de) * | 2013-01-14 | 2014-07-17 | Sms Siemag Ag | Gieß-Walzanlage sowie Verfahren zum Aus- und Einbau von Walzen in einem Reduziergerüst der Gieß-Walzanlage |
| CN103084402A (zh) * | 2013-01-25 | 2013-05-08 | 大连三高科技发展有限公司 | 冷弯成型水平机架的快换装置 |
| FR3006211B1 (fr) | 2013-05-28 | 2015-05-15 | Fives Dms | Procede de changement de configuration d'un laminoir et laminoir pour la mise en oeuvre du procede. |
| CN103464463B (zh) | 2013-09-26 | 2015-04-08 | 湖北中钢联冶金工程有限公司 | 连铸连轧一体装置及工艺 |
| CN204159642U (zh) * | 2014-10-08 | 2015-02-18 | 中冶赛迪工程技术股份有限公司 | 用于轧制中空钢的生产线 |
| CN204448821U (zh) * | 2015-02-13 | 2015-07-08 | 攀钢集团工程技术有限公司 | 万能轧机空过辊道和轧辊组的切换装置 |
| CN205732274U (zh) | 2016-02-05 | 2016-11-30 | 山西工程职业技术学院 | 教学用单机架四辊可逆冷轧轧机 |
| JP6684968B2 (ja) | 2016-11-10 | 2020-04-22 | エス・エム・エス・グループ・ゲゼルシャフト・ミト・ベシュレンクテル・ハフツング | 連続鋳造圧延設備内において、金属的なストリップを製造するための方法 |
| CN107413856B (zh) * | 2017-07-18 | 2019-02-01 | 燕山大学 | 一种基于esp精轧机组变规格在线换辊的撤辊方法 |
| DE102017220616A1 (de) | 2017-11-17 | 2019-05-23 | Sms Group Gmbh | Dünnbrammengießanlage mit wechselbarem Maschinenkopf |
| CN114786832A (zh) | 2019-12-11 | 2022-07-22 | Sms集团有限公司 | 用于热轧机和用于制造金属扁平产品的热轧机架、热轧机以及用于运行热轧机的方法 |
-
2020
- 2020-12-03 EP EP20820362.0A patent/EP4072746B1/de active Active
- 2020-12-03 CN CN202080086095.7A patent/CN114786830B/zh active Active
- 2020-12-03 JP JP2022535684A patent/JP7393549B2/ja active Active
- 2020-12-03 US US17/784,302 patent/US12269080B2/en active Active
- 2020-12-03 WO PCT/EP2020/084376 patent/WO2021115900A1/de not_active Ceased
- 2020-12-11 DE DE102020215770.7A patent/DE102020215770A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US12269080B2 (en) | 2025-04-08 |
| EP4072746C0 (de) | 2025-04-09 |
| WO2021115900A1 (de) | 2021-06-17 |
| CN114786830B (zh) | 2024-06-28 |
| JP7393549B2 (ja) | 2023-12-06 |
| EP4072746B1 (de) | 2025-04-09 |
| DE102020215770A1 (de) | 2021-06-17 |
| CN114786830A (zh) | 2022-07-22 |
| US20230056053A1 (en) | 2023-02-23 |
| JP2023505872A (ja) | 2023-02-13 |
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