CN107385190A - A kind of method of the related intelligent product plan steel grade linking of annealing furnace - Google Patents
A kind of method of the related intelligent product plan steel grade linking of annealing furnace Download PDFInfo
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- CN107385190A CN107385190A CN201710596738.2A CN201710596738A CN107385190A CN 107385190 A CN107385190 A CN 107385190A CN 201710596738 A CN201710596738 A CN 201710596738A CN 107385190 A CN107385190 A CN 107385190A
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- steel grade
- annealing furnace
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- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
-
- 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
Abstract
The invention belongs to steel grade engagement technique field, and in particular to a kind of method of the related intelligent product plan steel grade linking of annealing furnace.The method of the related intelligent product plan steel grade linking of the annealing furnace, pass through the mathematical modeling to different steel grade annealing curves, establish steel grade connected rule in the annealing furnace premised on ensureing properties of product, judge one by one in the same production schedule, whether meet convergence condition between two steel grades, and then determine optimal steel grade engagement scheme.Its advantage is：Energy consumption is reduced, ensures that properties of product are stable；Can the front and rear steel grade of anticipation linking whether can occur the unqualified problem of performance, and then manual intervention is in order to avoid expand economic loss；It may be used on the production line containing annealing furnace such as continuous annealing, continuous hot galvanizing.
Description
Technical field
The invention belongs to steel grade engagement technique field, and in particular to a kind of related intelligent product plan steel grade linking of annealing furnace
Method.
Background technology
Continuous annealing furnace extensive use in modern cold rolling production, such as continuous annealing unit and Continuous Hot Dip Galvanizing.
The chill coil of strip of cold-rolling mill production, the processes such as continuous annealing need to be passed through and can be only achieved expected properties of product.Based on continuous annealing
Stove continuous production and the characteristic of furnace temperature continuously linear regulation, when steel band passes through continuous annealing furnace, need to take into full account different steel grades pair
The adaptability of furnace temperature change.The strip of different steel grades has different requirements to furnace temperature, in order to realize that steel grade is connected, must adjust
Whole furnace temperature.If the steel grade difference of former and later two coil of strips is larger, the requirement difference to furnace temperature is very big, during adjusting furnace temperature, very
The requirement that there may be primary reformer temperature not comply with two coiled strip steels, cause coil of strip performance unqualified.
The content of the invention
A kind of the defects of present invention is in order to make up prior art, there is provided the related intelligent product plan steel grade linking of annealing furnace
Method.
The present invention is achieved through the following technical solutions：
The method of the related intelligent product plan steel grade linking of a kind of annealing furnace, by being built to the mathematics of different steel grade annealing curves
Mould, steel grade connected rule in the annealing furnace premised on ensureing properties of product is established, is judged one by one in the same production schedule, two steel
Whether meet convergence condition between kind, and then determine optimal steel grade engagement scheme, specifically include following steps：
1st, statistics treats steel grade classification in the scheduling production schedule, and it is SG1, SG2, SG3 ... SGn to number；
2nd, in inquiry in a scheduling production schedule concluding volume steel grade, numbering SG0；
3rd, according to formula（1）、（2）、（3）、（4）, determining SG0, SG1 ..., SGn corresponds to the gentle unit speed of steel grade annealing furnace
Regulation domain D（SG0）、D（SG1）、D（SG2）……D（SGn）；
4th, based on the regulation domain obtained by step 3, steel grade is sorted with above-mentioned steel grade connected rule, determines that each steel grade linking is suitable
Sequence.
Further, the mathematical modeling to different steel grade annealing curves, refer to produce all steel grades that product is related to,
An annealing temperature curve is all corresponded to, reflection is requirement of the same steel grade strip under different unit speeds to furnace temperature.T=f
(v), in formula：T --- furnace temperature, v --- producing line speed of production, in [T- △ t, T+ △ t] temperature range, strip property closes
Lattice, wherein △ t refer to temperature tolerance.
Further, the same steel grade is to the requirement of the lower limit of furnace temperature under different unit speeds：
Tmin=f(v)-△t ……（1）；
It is to the requirement of the upper limit of furnace temperature：Tmax=f(v)+△t ……（2）；
Maximum temperature in annealing furnace：Tfmax=C1 ……（3）,
In formula, Tf --- annealing furnace in-furnace temperature, C1 is constant, and unit is degree Celsius；
Unit maximum speed LSmax=C2 ……（4）,
In formula, LS --- unit speed, C2 is constant, and unit is m/min；
Assuming that treat to amount to n steel grade, the SGn that is respectively labeled as SG1, SG2, SG3 ... in the scheduling production schedule；Upper a scheduling
The steel grade of concluding volume is SG0 in the production schedule；
Above-mentioned formula（1）、（2）、（3）、（4）Surrounded graphics field, it is the tune of the gentle unit speed of steel grade annealing furnace
Save domain D（SG）, beyond the regulation domain, it is possible to cause the steel grade properties of product unqualified；
The regulation field mark of above-mentioned n steel grade is D（SG1）、D（SG2）、D（SG3）……D（SGn）；
The regulation domain of the steel grade of concluding volume is D in above-mentioned a scheduling production schedule（SG0）.
Steel grade connected rule of the present invention is：
1st, a upper steel grade is selected as regulation domain calculating benchmark, and the initial domain calculating benchmark that adjusts is D（SG0）.Regulation domain D is calculated respectively
（SG0）With adjusting domain D（SG1）、D（SG2）、D（SG3）……D（SGn）Overlapping area, the Sn labeled as S1, S2, S3 ...；
2nd, the Sn sizes that compare S1, S2, S3 ..., steel grade SGx corresponding to maximum Sx is steel grade SG0 next linking steel grade；
3rd, D is selected（SGx）To adjust domain calculating benchmark, then regulation domain D is calculated respectively（SGx）With adjusting domain D（SG1）、D（SG2）、
D（SG3）……D（SGx-1）、D（SGx+1）……D（SGn）Overlapping area, Sx-1, Sx+ labeled as S1, S2, S3 ...
2……Sn；
4th, Sx-1, Sx+2 ... Sn sizes that compare S1, S2, S3 ..., steel grade SGy corresponding to maximum Sy is steel grade SGx
Next linking steel grade；
5th, the above-mentioned calculating process of iteration, you can this is treated that all steel grades are by optimal order sequence linking in production planning and sequencing
It is good.
The beneficial effects of the invention are as follows：A kind of method of the related intelligent product plan steel grade linking of annealing furnace of the present invention passes through
To the mathematical modeling of different steel grade annealing curves, steel grade connected rule in the annealing furnace premised on ensureing properties of product is established,
Quantitative basis is provided for the related intelligent product plan steel grade connection problem of annealing furnace；Judge one by one in the same production schedule, two steel
Whether meet convergence condition between kind, and then determine optimal steel grade engagement scheme, reduce energy consumption, ensure that properties of product are stable；
Can the front and rear steel grade of anticipation linking whether can occur the unqualified problem of performance, and then manual intervention is in order to avoid expand economic loss；Can
It is applied to the production line containing annealing furnace such as continuous annealing, continuous hot galvanizing.
Brief description of the drawings
The present invention is further illustrated below in conjunction with the accompanying drawings.
Accompanying drawing 1 is the regulation domain schematic diagram of steel grade；
Accompanying drawing 2 is the regulation domain overlapping area schematic diagram of two steel grades；
Accompanying drawing 3 is the flow chart of the related intelligent product plan steel grade marching method of annealing furnace.
Embodiment
Accompanying drawing 1-3 is a kind of specific embodiment of the present invention.A kind of related intelligent product plan steel grade of annealing furnace of the invention
The method of linking, by the mathematical modeling to different steel grade annealing curves, the annealing furnace established premised on ensureing properties of product
Interior steel grade connected rule, judges in the same production schedule one by one, convergence condition whether is met between two steel grades, and then determine optimal
Steel grade engagement scheme, specifically include following steps：
1st, statistics treats steel grade classification in the scheduling production schedule, and it is SG1, SG2, SG3 ... SGn to number；
2nd, in inquiry in a scheduling production schedule concluding volume steel grade, numbering SG0；
3rd, according to formula（1）、（2）、（3）、（4）, determining SG0, SG1 ..., SGn corresponds to the gentle unit speed of steel grade annealing furnace
Regulation domain D（SG0）、D（SG1）、D（SG2）……D（SGn）；
4th, based on the regulation domain obtained by step 3, steel grade is sorted with above-mentioned steel grade connected rule, determines that each steel grade linking is suitable
Sequence.
Further, the mathematical modeling to different steel grade annealing curves, refer to produce all steel grades that product is related to,
An annealing temperature curve is all corresponded to, reflection is requirement of the same steel grade strip under different unit speeds to furnace temperature.T=f
(v), in formula：T --- furnace temperature, v --- producing line speed of production, in [T- △ t, T+ △ t] temperature range, strip property closes
Lattice, wherein △ t refer to temperature tolerance.
Further, the same steel grade is to the requirement of the lower limit of furnace temperature under different unit speeds：
Tmin=f(v)-△t ……（1）；
It is to the requirement of the upper limit of furnace temperature：Tmax=f(v)+△t ……（2）；
Maximum temperature in annealing furnace：Tfmax=C1 ……（3）,
In formula, Tf --- annealing furnace in-furnace temperature, C1 is constant, and unit is degree Celsius；
Unit maximum speed LSmax=C2 ……（4）,
In formula, LS --- unit speed, C2 is constant, and unit is m/min；
Assuming that treat to amount to n steel grade, the SGn that is respectively labeled as SG1, SG2, SG3 ... in the scheduling production schedule；Upper a scheduling
The steel grade of concluding volume is SG0 in the production schedule；
Above-mentioned formula（1）、（2）、（3）、（4）Surrounded graphics field, it is the tune of the gentle unit speed of steel grade annealing furnace
Save domain D（SG）, beyond the regulation domain, it is possible to cause the steel grade properties of product unqualified；
The regulation field mark of above-mentioned n steel grade is D（SG1）、D（SG2）、D（SG3）……D（SGn）；
The regulation domain of the steel grade of concluding volume is D in above-mentioned a scheduling production schedule（SG0）.
Steel grade connected rule of the present invention is：
1st, a upper steel grade is selected as regulation domain calculating benchmark, and the initial domain calculating benchmark that adjusts is D（SG0）.Regulation domain D is calculated respectively
（SG0）With adjusting domain D（SG1）、D（SG2）、D（SG3）……D（SGn）Overlapping area, the Sn labeled as S1, S2, S3 ...；
2nd, the Sn sizes that compare S1, S2, S3 ..., steel grade SGx corresponding to maximum Sx is steel grade SG0 next linking steel grade；
3rd, D is selected（SGx）To adjust domain calculating benchmark, then regulation domain D is calculated respectively（SGx）With adjusting domain D（SG1）、D（SG2）、
D（SG3）……D（SGx-1）、D（SGx+1）……D（SGn）Overlapping area, Sx-1, Sx+ labeled as S1, S2, S3 ...
2……Sn；
4th, Sx-1, Sx+2 ... Sn sizes that compare S1, S2, S3 ..., steel grade SGy corresponding to maximum Sy is steel grade SGx
Next linking steel grade；
5th, the above-mentioned calculating process of iteration, you can this is treated that all steel grades are by optimal order sequence linking in production planning and sequencing
It is good.
A kind of method of the related intelligent product plan steel grade linking of annealing furnace of the invention is used for certain continuous annealing unit.
Upper a plan concluding volume is coil00, steel grade SG0；Treat that production planning and sequencing is as shown in the table：
| Coil of strip number | Steel grade |
| Coil01 | SG1 |
| Coil02 | SG1 |
| Coil03 | SG1 |
| Coil04 | SG2 |
| Coil05 | SG2 |
| Coil06 | SG2 |
| Coil07 | SG2 |
| Coil08 | SG3 |
| Coil09 | SG3 |
| Coil10 | SG3 |
| Coil11 | SG3 |
| Coil12 | SG3 |
Above-mentioned steel grade SG0, SG1, SG2, SG3 correspond to an annealing temperature adjustment curve T=f (v), according to above-mentioned formula（1）、
（2）、（3）、（4）, the regulation domain D of each gentle unit speed of steel grade annealing furnace can be obtained（SG）, as shown in Figure 1；
The regulation field mark of above-mentioned 4 steel grades is D（SG0）、D（SG1）、D（SG2）、D（SG3）；
Selected D（SG0）To adjust domain calculating benchmark, D is calculated（SG0）Respectively with D（SG1）、D（SG2）、D（SG3）Overlapping area
S01, S02, S03, abcd region areas as shown in Figure 2；
Assuming that S02 ≠ 0, and S02>S01>S03, then the linking steel grade after steel grade SG0 is SG2；
Afterwards, D is selected（SG2）To adjust domain calculating benchmark, D is calculated（SG2）Respectively with D（SG1）、D（SG3）Overlapping area
S21、S23；
Assuming that S23 ≠ 0, and S23>S21, then the linking steel grade after steel grade SG2 is SG3；
Afterwards, D is selected（SG3）To adjust domain calculating benchmark, D is calculated（SG3）With D（SG1）Overlapping area S31；
Assuming that S31=0, then show, two steel grades can not realize that zero defect is connected, system prompt operator's artificial treatment.
Operator can selection operation have two：
（1）Transition volume is not provided with, steel grade SG1 is arranged to steel grade SG3 linking steel grade, be i.e. the steel grade linking for treating production planning and sequencing
Scheme is SG0->SG2->SG3->SG1.Two coil of strip performances that the operation can cause steel grade SG3 and steel grade SG1 to be connected can not be complete
Portion is qualified, and producing line predicts the information in advance, can be by the damage control minimum；
（2）Between steel grade SG1 and steel grade SG3 set transition roll up, and transition coil kind SGx respectively with steel grade SG1, steel grade
SG3 regulation domain overlapping area SGx1 ≠ 0, SGx3 ≠ 0, i.e., this treat that the steel grade engagement scheme of production planning and sequencing is SG0->SG2->
SG3-> SGx->SG1.Although the operation adds a roll of transition volume, but can guarantee that all steel grade performances of producing line production are closed
Lattice.
Further, there is overlapping steel grade in two regulation domains, during two be connected afterwards before manufacture volume, the stove of annealing furnace
Gentle unit speed must be adjusted in the overlapping regulation domain of two steel grades.
The present invention is not limited to the above-described embodiments, anyone should learn the present invention enlightenment under make with the present invention
With same or like technical scheme, each fall within protection scope of the present invention.
The present invention be not described in detail technology, shape, construction part be known technology.
Claims (3)
1. the method for the related intelligent product plan steel grade linking of a kind of annealing furnace, it is characterised in that by being annealed to different steel grades
The mathematical modeling of curve, steel grade connected rule in the annealing furnace premised on ensureing properties of product is established, judged one by one with all one's life
Produce inside the plan, whether meet convergence condition between two steel grades, and then determine optimal steel grade engagement scheme, comprise the following steps that：
Specifically include following steps：
1st, statistics treats steel grade classification in the scheduling production schedule, and it is SG1, SG2, SG3 ... SGn to number；
2nd, in inquiry in a scheduling production schedule concluding volume steel grade, numbering SG0；
3rd, according to formula（1）、（2）、（3）、（4）, determining SG0, SG1 ..., SGn corresponds to the gentle unit speed of steel grade annealing furnace
Regulation domain D（SG0）、D（SG1）、D（SG2）……D（SGn）；
4th, based on the regulation domain obtained by step 3, steel grade is sorted with above-mentioned steel grade connected rule, determines that each steel grade linking is suitable
Sequence.
2. a kind of method of the intelligent product plan steel grade linking of annealing furnace correlation according to claim 1, it is characterized in that：Institute
The mathematical modeling to different steel grade annealing curves stated, it is characterized in that having considered following four factor：Steel grade is in different machines
Organizing the lower limit requirement under speed to furnace temperature is：Tmin=f(v)-△t；It is to the requirement of the upper limit of furnace temperature：Tmax=f(v)+△t；Move back
Maximum temperature in stove stove：Tfmax=C1；Unit maximum speed LSmax=C2（In formula, Tf --- annealing furnace in-furnace temperature, C1 is
Constant, unit are degree Celsius that LS --- unit speed, C2 is constant, and unit is m/min）；Surrounded graphics field, as should
The regulation domain D of the gentle unit speed of steel grade annealing furnace（SG）, beyond the regulation domain, it is possible to cause the steel grade properties of product not
It is qualified.
3. a kind of method of the intelligent product plan steel grade linking of annealing furnace correlation according to claim 1, it is characterized in that：Institute
Steel grade connected rule is stated to comprise the following steps：
（1）A upper steel grade is selected as regulation domain calculating benchmark, the initial domain calculating benchmark that adjusts is D（SG0）, regulation domain is calculated respectively
D（SG0）With adjusting domain D（SG1）、D（SG2）、D（SG3）……D（SGn）Overlapping area, the Sn labeled as S1, S2, S3 ...；
（2）The Sn sizes that compare S1, S2, S3 ..., steel grade SGx corresponding to maximum Sx is steel grade SG0 next linking steel grade；
（3）Selected D（SGx）To adjust domain calculating benchmark, then regulation domain D is calculated respectively（SGx）With adjusting domain D（SG1）、D
（SG2）、D（SG3）……D（SGx-1）、D（SGx+1）……D（SGn）Overlapping area, labeled as S1, S2, S3 ... Sx-1,
Sx+2……Sn；
（4）Sx-1, Sx+2 ... Sn sizes that compare S1, S2, S3 ..., steel grade SGy corresponding to maximum Sy is steel grade SGx
Next linking steel grade；
（5）The above-mentioned calculating process of iteration, you can this is treated that all steel grades are by optimal order sequence linking in production planning and sequencing
It is good.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108280167A (en) * | 2018-01-19 | 2018-07-13 | 山东钢铁集团日照有限公司 | A kind of hot-rolled product production history multifunctional inquiring software and querying method |
| CN111523756A (en) * | 2020-03-18 | 2020-08-11 | 唐山钢铁集团有限责任公司 | APS-based method for calculating speed of iron and steel enterprise unit |
| CN113850491A (en) * | 2021-09-17 | 2021-12-28 | 北京科技大学 | Continuous annealing same-product gauge strip steel scheduling optimization method |
| CN116694903A (en) * | 2023-06-30 | 2023-09-05 | 常州润来科技有限公司 | Self-adaptive adjustment method and system for annealing copper pipe |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005307318A (en) * | 2004-04-26 | 2005-11-04 | Jfe Steel Kk | Method for batch-annealing metal hoop |
| CN101334660A (en) * | 2008-06-30 | 2008-12-31 | 东北大学 | Cold rolling continuous annealing units steel coil optimizing ordering method and its system |
| CN101748269A (en) * | 2008-11-28 | 2010-06-23 | 上海宝钢工业检测公司 | Correlation and integration method for full-flow data of central technological section of continuous annealing production line |
-
2017
- 2017-07-20 CN CN201710596738.2A patent/CN107385190B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005307318A (en) * | 2004-04-26 | 2005-11-04 | Jfe Steel Kk | Method for batch-annealing metal hoop |
| CN101334660A (en) * | 2008-06-30 | 2008-12-31 | 东北大学 | Cold rolling continuous annealing units steel coil optimizing ordering method and its system |
| CN101748269A (en) * | 2008-11-28 | 2010-06-23 | 上海宝钢工业检测公司 | Correlation and integration method for full-flow data of central technological section of continuous annealing production line |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108280167A (en) * | 2018-01-19 | 2018-07-13 | 山东钢铁集团日照有限公司 | A kind of hot-rolled product production history multifunctional inquiring software and querying method |
| CN111523756A (en) * | 2020-03-18 | 2020-08-11 | 唐山钢铁集团有限责任公司 | APS-based method for calculating speed of iron and steel enterprise unit |
| CN111523756B (en) * | 2020-03-18 | 2023-08-25 | 唐山钢铁集团有限责任公司 | APS-based method for calculating unit speed of iron and steel enterprise |
| CN113850491A (en) * | 2021-09-17 | 2021-12-28 | 北京科技大学 | Continuous annealing same-product gauge strip steel scheduling optimization method |
| CN113850491B (en) * | 2021-09-17 | 2023-01-31 | 北京科技大学 | Continuous annealing same-product gauge strip steel scheduling optimization method |
| CN116694903A (en) * | 2023-06-30 | 2023-09-05 | 常州润来科技有限公司 | Self-adaptive adjustment method and system for annealing copper pipe |
| CN116694903B (en) * | 2023-06-30 | 2023-12-26 | 常州润来科技有限公司 | Self-adaptive adjustment method and system for annealing copper pipe |
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