CN104428074B - The control device of slab multistrand rolling and control method - Google Patents
The control device of slab multistrand rolling and control method Download PDFInfo
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- CN104428074B CN104428074B CN201280074500.9A CN201280074500A CN104428074B CN 104428074 B CN104428074 B CN 104428074B CN 201280074500 A CN201280074500 A CN 201280074500A CN 104428074 B CN104428074 B CN 104428074B
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- rolling
- multistrand
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- 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
- B21B1/30—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 non-continuous process
- B21B1/32—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 non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D11/00—Process control or regulation for heat treatments
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
- Metal Rolling (AREA)
- Winding, Rewinding, Material Storage Devices (AREA)
Abstract
The present invention provides the control device etc. of a kind of productive slab multistrand rolling that can improve rolling stock.Therefore, the control device of slab multistrand rolling possesses multistrand rolling model selection function, this multistrand rolling model selection function is preset with multiple multistrand rolling pattern, and selects to consider the rolling actual value in rolling from the plurality of multistrand rolling pattern and attainable production efficiency the most much higher line rolling mode.This structure is utilized to select production efficiency the most much higher line rolling mode in real time.As a result of which it is, the productivity of rolling stock is improved.
Description
Technical field
The present invention relates to control device and the control method of slab multistrand rolling.
Background technology
In the roll line of slab, carry out TCR rolling (temperature controlled rolling: Temperature
Controlled Rolling).In TCR rolls, the operation of rolling is provided with cooling stand-by time.
As a result of which it is, the desired materials such as high tension steel can be obtained.
TCR rolling stock applies multistrand rolling.In multistrand rolling, in the cooling of rolling stock
Other rolling stock is rolled by stand-by time.It has been combined plural rolling i.e., simultaneously
The rolling mill practice of prepared material.
In the control of multistrand rolling, it is proposed that following technology: using two rolling stocks as one group
When rolling, by can meet in the range of target materials to through once rolling after each
The thickness of slab of rolling stock is adjusted, so that total rolling time of two rolling stocks is the shortest (such as
With reference to patent documentation 1).
Prior art literature
Patent documentation
Patent documentation 1: Japanese Patent Laid-Open 2005-246427 publication
Summary of the invention
Invent technical problem to be solved
But, the scheme described in patent documentation 1 does not consider the practical situation of rolling.Therefore, exist
The leeway that the productivity aspect of rolling stock is also improved.
The present invention completes to solve the problems referred to above, its object is to provide a kind of can raising to roll
The control device of the productive slab multistrand rolling of prepared material and control method.
Solve the technical scheme that technical problem is used
The control device of slab multistrand rolling involved in the present invention possesses multistrand rolling model selection merit
Can, this multistrand rolling model selection function is preset with multiple multistrand rolling pattern, and from described many
In individual multistrand rolling pattern select consider rolling in rolling actual value and attainable production efficiency is the highest
Multistrand rolling pattern.
The control method of the slab multistrand rolling of the present invention includes: set operation, and this setting operation sets
Multiple multistrand rolling patterns；And selection operation, this selection operation is from the plurality of multistrand rolling pattern
The middle rolling actual value selecting to consider in rolling and the best multistrand rolling mould of the production efficiency that can realize
Formula.
Invention effect
According to the present invention, the productivity of rolling stock can be improved.
Accompanying drawing explanation
Fig. 1 is the heavy plate rolling controlling device of the slab multistrand rolling that make use of embodiment of the present invention 1
The structure chart of line.
Fig. 2 is for illustrating that the control device utilizing the slab multistrand rolling of embodiment of the present invention 1 makes
The figure of the optimized method of multistrand rolling pattern.
Fig. 3 is the heavy plate rolling controlling device of the slab multistrand rolling that make use of embodiment of the present invention 2
The structure chart of line.
Fig. 4 is the heavy plate rolling controlling device of the slab multistrand rolling that make use of embodiment of the present invention 3
The structure chart of line.
Fig. 5 is for illustrating that the control device utilizing the slab multistrand rolling of embodiment of the present invention 3 is adjusted
The figure of the method in the whole moment extracting rolling stock from heating furnace.
Detailed description of the invention
With reference to the accompanying drawings, to being used for implementing embodiments of the present invention illustrating.Additionally, at each accompanying drawing
In, for the label that same or equivalent part mark is identical, and suitably simplify or omit its repetition
Explanation.
Embodiment 1.
Fig. 1 is the heavy plate rolling controlling device of the slab multistrand rolling that make use of embodiment of the present invention 1
The structure chart of line.
In Fig. 1, it is provided with the first carrying device 2 in the downstream of heating furnace 1.First carrying device 2 times
Trip side is provided with roll mill 3.The downstream of roll mill 3 is provided with the second carrying device 4.Second carrying device 4
Downstream be provided with cold bed 5.
First carrying device 2 is connected with the first carrying device driving means 2a.Roll mill 3 and rolling
Machine driving means 3a is connected.Second carrying device 4 is connected with the second carrying device driving means 4a
Connect.
First carrying device 2 is provided with the first carrying device sensor 2b.Roll mill 3 is provided with rolling
Machine sensor 3b.Second carrying device 4 is provided with the second carrying device sensor 4b.
Conveyance controls function 6 to be possessed the first carrying device driving means 2a, roll mill driving means
The function that 3a, the second carrying device driving means 4a are controlled.Conveyance control function 6 possess to from
First carrying device sensor 2b, roll mill sensor 3b, the second carrying device sensor 4b
The rolling actual value obtained carries out the function exported.
Pass schedule (pass schedule) setup algorithm function 7 possesses calculating rolling time, when cooling down standby
Between, the setup algorithm value of each rolling stock such as length of material, and export the function of this setup algorithm value.
Pass schedule setup algorithm function 7 possesses the feedback utilizing the rolling actual value exported by conveyance control function 6
The function that setup algorithm value is gradually revised.
Slab multistrand rolling operation optimized control device 8 possess multistrand rolling model selection function 9, with
And multistrand rolling management function 10.
Multistrand rolling selects function 9 to set the multistrand rolling pattern that the quantity of object rolling stock is different
It is used as multiple multistrand rolling pattern.Multistrand rolling model selection function 9 possesses following function: i.e., base
Setup algorithm value and rolling actual value in each rolling stock obtained from pass schedule setup algorithm function 7
Feedback, select in attainable multistrand rolling pattern one by one, production efficiency the most much higher line rolling die
Formula.
Multistrand rolling management function 10 possesses setup algorithm value management department 11, rolling mill practice management department 12.
Setup algorithm value management department 11 possesses each rolled stock that will obtain from pass schedule setup algorithm function 7
The setup algorithm value of material associates, with each rolling stock, the function being managed.Rolling mill practice management department
12 possess following function: i.e., in each stage of rolling mill practice, select function 9 to obtain based on from multistrand rolling
Multistrand rolling and the setup algorithm value information that obtains from setup algorithm value management department 11, to each rolling
The technique of material (roll, transport, standby etc.) is managed, and conveyance controls function 6 output refers to
Show.
Then, Fig. 2 is utilized to illustrate to make the optimized method of multistrand rolling.
Fig. 2 is for illustrating that the control device utilizing the slab multistrand rolling of embodiment of the present invention 1 makes
The figure of the optimized method of multistrand rolling pattern.
The transverse axis of Fig. 2 represents the position relationship of roll mill 3 and rolling stock.The longitudinal axis express time of Fig. 2.
In Fig. 2, it is shown that A material, B material, C-material, the example of multistrand rolling pattern of D material.
First, pass schedule setup algorithm function 7 is utilized to calculate the setting of A material, B material, C-material
Value of calculation.In this case, as shown in Fig. 2 (a), multistrand rolling model selection function 9 is based on this setting
Value of calculation obtains the initial set mode of multistrand rolling.
In this multistrand rolling pattern, as shown in Fig. 2 (b), for C-material, will become cooling down holding state
Rolling time before is set to shorter than initial set mode.In this case, roll mill 3 is not used
Lose time 13 be extended.
Now, multistrand rolling model selection function 9 by lose time 13 take into account judge add D material
The multistrand rolling pattern of material is no optimum.It is optimum situation in the multistrand rolling pattern adding D material
Under, as shown in Fig. 2 (c), multistrand rolling selects function 9 to select with the addition of the multistrand rolling pattern of D material.
Embodiment 1 from the description above, in real time select consider rolling actual value and attainable life
Produce efficiency the most much higher line rolling mode.Specifically, attainable many from consideration rolling actual value
Line rolling mode selects the multistrand rolling pattern that the quantity of rolling stock is most.Accordingly, it is capable to do not dropping
The productivity of rolling stock is improved on the premise of low rolling stock quality.
It addition, as shown in Fig. 2 (c) after optimization, the rolling of C-material may be spent
The time more longer than value of calculation.In this case, multistrand rolling model selection function 9 is judged to not extract
D material.Therefore, D material will not be wasted.As a result of which it is, the productivity of rolling stock can be improved.
Embodiment 2.
Fig. 3 is the heavy plate rolling controlling device of the slab multistrand rolling that make use of embodiment of the present invention 2
The structure chart of line.It addition, for the identical label of the part mark same or equivalent with embodiment 1,
And the description thereof will be omitted.
As it is shown on figure 3, the slab multistrand rolling operation optimized control device 8 of embodiment 2 is embodiment party
The slab multistrand rolling operation optimized control device 8 of formula 1 with the addition of setup algorithm value and adjust function
14。
Setup algorithm value adjusts function 14 and possesses following function: i.e., by obtaining target rolled stock
In the range of the material of material to cool down standby end temp, standby time the setup algorithm value such as thickness of slab carry out
Change, thus determine whether make multistrand rolling pattern optimization further.
In the case of multi-thread milling train pattern can be made the most optimized by change setting value of calculation,
Setup algorithm value adjusts function 14 and is adjusted setup algorithm value.This setup algorithm value is fed back to roll
Tabulation setup algorithm function 7.Other is set by pass schedule setup algorithm function 7 based on this setup algorithm value
Value of calculation is modified, to obtain the material of target rolling stock.
Embodiment 2 from the description above, adjusts function 14 energy further by adding setup algorithm value
Improve the productivity of rolling stock.
Embodiment 3.
Fig. 4 is the heavy plate rolling controlling device of the slab multistrand rolling that make use of embodiment of the present invention 3
The structure chart of line.It addition, for the identical label of the part mark same or equivalent with embodiment 1,
And the description thereof will be omitted.
As shown in Figure 4, the slab multistrand rolling operation optimized control device 8 of embodiment 3 is embodiment party
The slab multistrand rolling operation optimized control device 8 of formula 1 with the addition of milling train speed-regulating function 15.
Milling train speed-regulating function 15 possesses following function: i.e., is realizing by multistrand rolling model selection function 9
On the basis of calculated multistrand rolling pattern, calculate the conjunction extracting rolling stock from heating furnace 1
The suitable moment.
Then, Fig. 5 is utilized to illustrate the action of milling train speed-regulating function 15.
Fig. 5 is for illustrating that the control device utilizing the slab multistrand rolling of embodiment of the present invention 3 is adjusted
The figure of the method in the whole moment extracting rolling stock from heating furnace.
The horizontal axis representing time of Fig. 5.Fig. 5 (a) is shown in the good moment and extracts first to the 5th and roll
The situation of prepared material.Fig. 5 (b) is shown in the moment earlier and extracts the situation of the 3rd rolling stock.
When each rolling stock is set rolling time 16, cooling stand-by time 17, a secondary rolling
Between 18.In the case of the moment extracting each rolling stock is good, as shown in Fig. 5 (a), each rolling stock
A rolling time 16, secondary rolling time 18, a rolling time 16 of other rolling stock,
Secondary rolling time 18 will not overlap.Accordingly, it is capable to carry out predetermined multistrand rolling.
On the other hand, if as shown in Fig. 5 (b), the extraction moment of the 3rd rolling stock relatively early, then the
Secondary rolling time 18 weight of rolling time 16 of five rolling stocks and the 3rd rolling stock
Close.Therefore, it is impossible to guarantee enough for the time carrying out rolling with predefined procedure.In this case,
Cannot roll with most suitable multistrand rolling pattern.As a result of which it is, need to give up rolling of extracting
Prepared material.
In the case of the moment different from setting extracts rolling stock, milling train speed-regulating function 15 calculates
The most suitable moment that follow-up rolling stock is extracted, thus with most suitable multistrand rolling mould
Formula rolls.In this case, it is considered to completed the rolling stock of extraction and follow-up once rolling
Time 16 processed, cooling stand-by time 17, the relation of secondary rolling time 18.Specifically, calculate right
Follow-up rolling stock carries out the moment extracted, so that each rolling stock rolling time 16,
Secondary rolling time 18 not with a rolling time 16, secondary rolling time 18 weight of other rolling stock
Close.
In the case of Fig. 5 (b), the moment extracting the 5th rolling stock is modified, so that
The once rolling of the 5th rolling stock is set immediately after the secondary rolling time 18 of the 3rd rolling stock
Time 16.As a result of which it is, multistrand rolling is continued, and without giving up rolling stock.
Embodiment 3 from the description above, by add milling train speed-regulating function 15, even if thus with
Different moment in moment set by multistrand rolling pattern extracts the feelings of rolling stock from heating furnace 1
Under condition, also can improve yield rate further.
Industrial practicality
As it has been described above, the control device of slab multistrand rolling involved in the present invention and control method can be used
In the productive slab multistrand rolling improving rolling stock.
Label declaration
1 heating furnace, 2 first carrying devices, 2a the first carrying device driving means,
2b the first carrying device sensor, 3 roll mills, 3a roll mill driving means,
3b roll mill sensor, 4 second carrying devices, 4a the second carrying device drive
Device,
4b the second carrying device sensor, 5 cold beds, 6 conveyance control functions,
7 pass schedule setup algorithm functions,
8 slab multistrand rolling operation optimized control devices,
9 multistrand rolling model selection functions, 10 multistrand rollings management functions,
11 setup algorithm value management departments, 12 rolling mill practice management departments, 13 lose time,
14 setup algorithm values adjust functions, 15 milling train speed-regulating functions, 16 rolling times,
17 cooling stand-by time, 18 2 rolling times.
Claims (6)
1. the control device of a slab multistrand rolling, it is characterised in that possess:
Multistrand rolling model selection function, this multistrand rolling model selection function is preset with multiple many
Line rolling mode, and select to consider the rolling actual value in rolling from the plurality of multistrand rolling pattern
And attainable production efficiency the most much higher line rolling mode；And
Milling train speed-regulating function, this milling train speed-regulating function with utilize described multistrand rolling model selection merit
Can and different moment in moment set by multistrand rolling pattern of selecting extracts rolling from heating furnace
In the case of material, calculate the moment extracting follow-up rolling stock from described heating furnace, so that
The rolling time of the rolling stock extracted is misaligned with the rolling time of follow-up rolling stock.
2. the control device of slab multistrand rolling as claimed in claim 1, it is characterised in that described many
The multistrand rolling pattern that line rolling mode selects function to be set with the quantity of object rolling stock different is made
For the plurality of multistrand rolling pattern, attainable from the rolling actual value considered rolling multi-thread roll
Molding formula selects the multistrand rolling pattern that the quantity of rolling stock is most.
3. slab multistrand rolling as claimed in claim 1 or 2 controls device, it is characterised in that
Possessing setup algorithm value and adjust function, this setup algorithm value adjusts function and can pass through utilizing
Setup algorithm value in the multistrand rolling pattern stating multistrand rolling model selection function and select changes
In the case of selecting production efficiency higher multistrand rolling pattern, setup algorithm value is adjusted.
4. the control method of a slab multistrand rolling, it is characterised in that including:
Setting operation, this setting operation sets multiple multistrand rolling patterns；
Selecting operation, this selection operation selects to consider in rolling from the plurality of multistrand rolling pattern
The production efficiency the most much higher line rolling mode rolling actual value and can realize；And
Calculation process, this calculation process with the multistrand rolling pattern institute selected by described selection operation
In the case of the different moment in moment set extracts rolling stock from heating furnace, calculate from described
Heating furnace extracts the moment of follow-up rolling stock, so that the rolling of the rolling stock extracted
Time is misaligned with the rolling time of follow-up rolling stock.
5. the control method of slab multistrand rolling as claimed in claim 4, it is characterised in that
Described setting operation is made up of following operation: i.e., and the quantity setting object rolling stock is different
Multistrand rolling pattern is used as the plurality of multistrand rolling pattern,
Described selection operation is made up of following operation: i.e., the energy from the rolling actual value considered rolling
The multistrand rolling pattern realized selects the multistrand rolling pattern that the quantity of rolling stock is most.
6. the slab multistrand rolling control method as described in claim 4 or 5, it is characterised in that
Possess adjustment operation, this adjustment operation can by change by described selection operation select multi-thread
In the case of setup algorithm value in rolling mode selects production efficiency higher multistrand rolling pattern,
Setup algorithm value is adjusted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2012/067087 WO2014006702A1 (en) | 2012-07-04 | 2012-07-04 | Control device and control method for thick plate multi-rolling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104428074A CN104428074A (en) | 2015-03-18 |
| CN104428074B true CN104428074B (en) | 2016-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280074500.9A Active CN104428074B (en) | 2012-07-04 | 2012-07-04 | The control device of slab multistrand rolling and control method |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP5907264B2 (en) |
| KR (1) | KR101633579B1 (en) |
| CN (1) | CN104428074B (en) |
| BR (1) | BR112014032545B1 (en) |
| WO (1) | WO2014006702A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018117758A1 (en) * | 2016-12-22 | 2018-06-28 | 주식회사 포스코 | Thick plate multi-rolling device and method for controlling same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003181504A (en) * | 2001-12-11 | 2003-07-02 | Nippon Steel Corp | Method for rolling thick steel plate |
| JP2003305508A (en) * | 2002-04-08 | 2003-10-28 | Jfe Steel Kk | Method for determining outline of rolling |
| JP2007283316A (en) * | 2006-04-13 | 2007-11-01 | Nippon Steel Corp | Method for producing thick steel plate |
| CN102015136A (en) * | 2008-05-07 | 2011-04-13 | 东芝三菱电机产业系统株式会社 | Board thickness controller for rolling machine |
| CN102218450A (en) * | 2010-04-13 | 2011-10-19 | 东芝三菱电机产业系统株式会社 | Control device of fine-finishing continuous rolling mill, control method and control mode generating method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5946682B2 (en) * | 1981-03-26 | 1984-11-14 | 住友金属工業株式会社 | Thick plate rolling method |
| JP2829697B2 (en) * | 1993-08-26 | 1998-11-25 | 新日本製鐵株式会社 | Plate rolling method |
| JP3302809B2 (en) * | 1993-12-27 | 2002-07-15 | 株式会社東芝 | Extraction pitch determination device in hot continuous rolling system |
| JPH08155513A (en) * | 1994-12-02 | 1996-06-18 | Kobe Steel Ltd | Mill pacing method |
| JP2005246427A (en) | 2004-03-04 | 2005-09-15 | Nippon Steel Corp | Method for rolling slab |
| JP4853000B2 (en) * | 2005-09-12 | 2012-01-11 | Ｊｆｅスチール株式会社 | Hot rolling method and hot rolling equipment used therefor |
-
2012
- 2012-07-04 KR KR1020147035561A patent/KR101633579B1/en active IP Right Grant
- 2012-07-04 WO PCT/JP2012/067087 patent/WO2014006702A1/en active Application Filing
- 2012-07-04 BR BR112014032545-6A patent/BR112014032545B1/en active IP Right Grant
- 2012-07-04 CN CN201280074500.9A patent/CN104428074B/en active Active
- 2012-07-04 JP JP2014523481A patent/JP5907264B2/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003181504A (en) * | 2001-12-11 | 2003-07-02 | Nippon Steel Corp | Method for rolling thick steel plate |
| JP2003305508A (en) * | 2002-04-08 | 2003-10-28 | Jfe Steel Kk | Method for determining outline of rolling |
| JP2007283316A (en) * | 2006-04-13 | 2007-11-01 | Nippon Steel Corp | Method for producing thick steel plate |
| CN102015136A (en) * | 2008-05-07 | 2011-04-13 | 东芝三菱电机产业系统株式会社 | Board thickness controller for rolling machine |
| CN102218450A (en) * | 2010-04-13 | 2011-10-19 | 东芝三菱电机产业系统株式会社 | Control device of fine-finishing continuous rolling mill, control method and control mode generating method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104428074A (en) | 2015-03-18 |
| BR112014032545B1 (en) | 2022-02-22 |
| WO2014006702A1 (en) | 2014-01-09 |
| JPWO2014006702A1 (en) | 2016-06-02 |
| KR20150011837A (en) | 2015-02-02 |
| KR101633579B1 (en) | 2016-06-24 |
| BR112014032545A2 (en) | 2017-06-27 |
| JP5907264B2 (en) | 2016-04-26 |
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