CN104128583B - A kind of continuous casting crystallizer for plate billet on-line width adjustment method and device - Google Patents
A kind of continuous casting crystallizer for plate billet on-line width adjustment method and device Download PDFInfo
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- CN104128583B CN104128583B CN201410400027.XA CN201410400027A CN104128583B CN 104128583 B CN104128583 B CN 104128583B CN 201410400027 A CN201410400027 A CN 201410400027A CN 104128583 B CN104128583 B CN 104128583B
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Abstract
The present invention is applicable to steel-making continuous casting field, it is provided that a kind of continuous casting crystallizer for plate billet on-line width adjustment method and device, and described method includes: obtains crystallizer current width actual value, and calculates the difference of described actual value and the final goal value of setting；Interval range residing for described difference selects corresponding target to adjust wide mode, then adjusts wide mode to carry out the online width adjustment of crystallizer according to the target selected.The tune wide mode that the present invention adopts is not fixed, difference according to crystallizer developed width with the final goal value of setting selects corresponding target to adjust wide mode, the shortest namely most effective on-line width adjustment pattern consuming time is selected to adjust wide mode as target, thus improving stability and the safety of production process, and then improve production efficiency and reduce production cost.
Description
Technical field
The invention belongs to steel-making continuous casting field, particularly relate to decision method and the device of a kind of continuous casting crystallizer for plate billet on-line width adjustment pattern.
Background technology
Continuous casting crystallizer for plate billet, as nucleus equipment and the key technology of slab caster, its operating characteristic directly determines the quality of produced strand and the compatibility to complicated production operating mode.For meeting, steel rolling process frequently changes strand dimensional requirement, it is necessary to often change the working width of crystallizer.For this, it has been developed that the hot on-line width adjustment technology of crystallizer, plurality of specifications strand quantity-produced needs can be met, improve slab quality and production efficiency, improve recovery rate of iron simultaneously and reduce production cost.But, for change width value a certain in on-line width adjustment process, the wide efficiency of adjusting adopting not people having the same aspiration and interest wide mode obtained is not quite similar, and high efficiency tune wide mode contributes to improving further slab quality and recovery rate of iron, thus obtaining bigger profit margin.For this, in continuous casting crystallizer for plate billet on-line width adjustment process, rationally select according to its change width value to adjust wide mode to have the value of highly significant.And at present in on-line width adjustment technology, adopt and fixing adjust wide mode to carry out adjusting width, adjust wide inefficient.
Summary of the invention
In view of the above problems, it is an object of the invention to provide a kind of continuous casting crystallizer for plate billet on-line width adjustment method and device, it is intended to solve existing employing and fix the width control technology adjusting wide mode, it adjusts wide inefficient technical problem.
On the one hand, described continuous casting crystallizer for plate billet on-line width adjustment method comprises the steps:
Obtain crystallizer current width actual value, and calculate the difference of described actual value and the final goal value of setting；
Interval range residing for described difference selects corresponding target to adjust wide mode, then adjusts wide mode to carry out the online width adjustment of crystallizer according to the target selected.
Further, described interval range residing for described difference selects corresponding target to adjust wide mode, then adjusts wide mode to carry out the online width tuning step of crystallizer according to the target selected, specifically includes:
When described difference is positioned at the first interval, selecting pattern one is that target adjusts wide mode, carries out tapering change；
When described difference is positioned at the second interval, selecting pattern two is that target adjusts wide mode, carries out the continuous change width adjustment of step-by-step movement；
When described difference is positioned at the 3rd interval, selecting pattern three is that target adjusts wide mode, carries out continuously and smoothly's change width adjustment；
When described difference is positioned at the 4th interval, selecting pattern four is that target adjusts wide mode, carries out speed change change width adjustment.
Further, described first interval range is 0mm～4mm, and described second interval range is 4mm～10mm, and described 3rd interval range is 10mm～20mm, and described 4th interval range is 20mm to the full section sizes of crystallizer.
On the other hand, described continuous casting crystallizer for plate billet On-Line Wide-Altering Device, including:
Difference acquiring unit, is used for obtaining crystallizer current width actual value, and calculates the difference of described actual value and the final goal value of setting；
Model selection adjustment unit, selects corresponding target to adjust wide mode for the interval range residing for described difference, then adjusts wide mode to carry out the online width adjustment of crystallizer according to the target selected.
Further, described model selection adjustment unit includes:
First adjusting module, for when described difference is positioned at the first interval, selecting pattern one is that target adjusts wide mode, carries out tapering change；
Second adjusting module, for when described difference is positioned at the second interval, selecting pattern two is that target adjusts wide mode, carries out the continuous change width adjustment of step-by-step movement；
3rd adjusting module, for when described difference is positioned at the 3rd interval, selecting pattern three is that target adjusts wide mode, carries out continuously and smoothly's change width adjustment；
4th adjusting module, for when described difference is positioned at the 4th interval, selecting pattern four is that target adjusts wide mode, carries out speed change change width adjustment.
Further, described first interval range is 0mm～4mm, and described second interval range is 4mm～10mm, and described 3rd interval range is 10mm～20mm, and described 4th interval range is 20mm to the full section sizes of crystallizer.
The invention has the beneficial effects as follows: the present invention is based on the consideration to crystallizer on-line width modulation process basic feature, recover including becoming cone, translation and tapering, in on-line width adjustment process, obtain the difference of crystallizer current width actual value and the final goal value of setting in real time, and the suitable target of spatial choice residing for described difference adjusts wide mode, then carry out corresponding online width adjustment；The present invention can realize continuous casting crystallizer for plate billet high-efficiency and continuous on-line width adjustment, improves stability and the safety of production process, and then improves production efficiency and reduce production cost.
Accompanying drawing explanation
Fig. 1 is the flow chart of the continuous casting crystallizer for plate billet on-line width adjustment method that first embodiment of the invention provides；
Fig. 2 is the flow chart of the continuous casting crystallizer for plate billet on-line width adjustment method that second embodiment of the invention provides；
Fig. 3 is the block diagram of the continuous casting crystallizer for plate billet On-Line Wide-Altering Device that third embodiment of the invention provides.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention.
In order to technical solutions according to the invention are described, illustrate below by specific embodiment.
Embodiment one:
Fig. 1 illustrates the flow process of the continuous casting crystallizer for plate billet on-line width adjustment method that the embodiment of the present invention provides, for the ease of illustrating to illustrate only the part relevant to the embodiment of the present invention.
The continuous casting crystallizer for plate billet on-line width adjustment method that the present embodiment provides comprises the steps:
Step S11, acquisition crystallizer current width actual value, and calculate the difference of described actual value and the final goal value of setting.
In the online width adjustment process of crystallizer, copper plate of crystallizer displacement can be detected by displacement transducer, then obtain the current width actual value of crystallizer.It addition, before crystallizer on-line tuning, a final goal value, this step can be set controlling end, calculate the difference W of described final goal value and described actual value.
Step S12, interval range residing for described difference select corresponding target to adjust wide mode, then adjust wide mode to carry out the online width adjustment of crystallizer according to the target selected.
First this step arranges several interval range, the target tune wide mode that different interval ranges are corresponding different, select target adjust wide mode time, it is necessary to ensure to guarantee to remain stable for geometrical relationship between green shell and crystallizer wall in translation motion, simultaneously meet translation the shortest consuming time be zero condition；The geometrical relationship guaranteed in cone adjusting process between green shell and crystallizer wall does not transfinite, and tapering adjustment can not surmount mechanical limit；When hot rolling has particular/special requirement, also needing to guarantee to adjust to meet hot-rolled process requirement wider than the slope of wedge shape base in journey, selection is final after meeting conditions above selects the shortest namely most effective on-line width adjustment pattern consuming time to adjust wide mode as target.
Embodiment two:
Fig. 2 illustrates the flow process of the continuous casting crystallizer for plate billet on-line width adjustment method that the embodiment of the present invention provides, for the ease of illustrating to illustrate only the part relevant to the embodiment of the present invention.
The continuous casting crystallizer for plate billet on-line width adjustment method that the present embodiment provides comprises the steps:
Step S21, acquisition crystallizer current width actual value, and calculate the difference of described actual value and the final goal value of setting.
Step S22, when described difference W is positioned at the first interval A1, select pattern one for target tune wide mode, carry out tapering change；
Step S23, when described difference W is positioned at the second interval A2, select pattern two for target tune wide mode, carry out the continuous change width adjustment of step-by-step movement；
Step S24, when described difference W is positioned at the 3rd interval A3, select pattern three for target tune wide mode, carry out continuously and smoothly's change width adjustment；
Step S25, when described difference W is positioned at the 4th interval A4, select pattern four for target tune wide mode, carry out speed change change width adjustment.
Described step S22-S25 is a kind of concrete preferred implementation of step S12 in embodiment one, described first interval A1 ranges for 0mm～4mm, described second interval A2 ranges for 4mm～10mm, described 3rd interval A2 ranges for 10mm～20mm, the interval A4 of institute the described 4th and ranges for 20mm to the full section sizes of crystallizer.
Such as, continuous casting crystallizer for plate billet on-line width adjustment process, crystallizer current width is 2100mm, need to adjust wide to target width 2118mm.As the above analysis: W=18mm.Therefore, select " pattern three " to adjust wide mode as target, carry out continuously and smoothly's change width adjustment.
And for example, continuous casting crystallizer for plate billet on-line width adjustment process, crystallizer current width is 2100mm, need to adjust wide to target width 2000mm.As the above analysis: W=100mm.Therefore, select pattern four to adjust wide mode as target, carry out speed change change width adjustment.
Embodiment three:
Fig. 3 illustrates the structure of the continuous casting crystallizer for plate billet On-Line Wide-Altering Device that the embodiment of the present invention provides, for the ease of illustrating to illustrate only the part relevant to the embodiment of the present invention.
Described continuous casting crystallizer for plate billet On-Line Wide-Altering Device, including:
Difference acquiring unit 31, is used for obtaining crystallizer current width actual value, and calculates the difference of described actual value and the final goal value of setting；
Model selection adjustment unit 32, selects corresponding target to adjust wide mode for the interval range residing for described difference, then adjusts wide mode to carry out the online width adjustment of crystallizer according to the target selected.
Above-mentioned functions unit 31,32 correspondence achieves step S11, S12 in embodiment one, concrete, the difference obtaining crystallizer current width actual value with final goal value is calculated by difference acquiring unit 31, then passing through model selection adjustment unit 32 selects the target of correspondence to adjust wide mode, and carries out adjusting width to control accordingly.
Further, described model selection adjustment unit includes:
First adjusting module, for when described difference is positioned at the first interval, selecting pattern one is that target adjusts wide mode, carries out tapering change；
Second adjusting module, for when described difference is positioned at the second interval, selecting pattern two is that target adjusts wide mode, carries out the continuous change width adjustment of step-by-step movement；
3rd adjusting module, for when described difference is positioned at the 3rd interval, selecting pattern three is that target adjusts wide mode, carries out continuously and smoothly's change width adjustment；
4th adjusting module, for when described difference is positioned at the 4th interval, selecting pattern four is that target adjusts wide mode, carries out speed change change width adjustment.
Wherein, described first interval range is 0mm～4mm, and described second interval range is 4mm～10mm, and described 3rd interval range is 10mm～20mm, and described 4th interval range is 20mm to the full section sizes of crystallizer.
To sum up, in embodiments of the present invention, the tune wide mode adopted is not fixed, difference according to crystallizer developed width with the final goal value of setting selects corresponding target to adjust wide mode, ensure to guarantee to remain stable for geometrical relationship between green shell and crystallizer wall in translation motion, simultaneously meet translation the shortest consuming time be zero condition；The geometrical relationship guaranteed in cone adjusting process between green shell and crystallizer wall does not transfinite, and tapering adjustment can not surmount mechanical limit；When hot rolling has particular/special requirement, also need to guarantee to adjust to meet hot-rolled process requirement wider than the slope of wedge shape base in journey.Final selection the shortest namely most effective on-line width adjustment pattern consuming time adjusts wide mode as target, thus improving stability and the safety of production process, and then improves production efficiency and reduces production cost.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all any amendment, equivalent replacement and improvement etc. made within the spirit and principles in the present invention, should be included within protection scope of the present invention.
Claims (2)
1. a continuous casting crystallizer for plate billet on-line width adjustment method, it is characterised in that described method includes:
Obtain crystallizer current width actual value, and calculate the difference of described actual value and the final goal value of setting；
Interval range residing for described difference selects corresponding target to adjust wide mode, then adjusts wide mode to carry out the online width adjustment of crystallizer according to the target selected；
Wherein said interval range residing for described difference selects corresponding target to adjust wide mode, then adjusts wide mode to carry out the online width tuning step of crystallizer according to the target selected, specifically includes:
When described difference is positioned at the first interval, selecting pattern one is that target adjusts wide mode, carries out tapering change；
When described difference is positioned at the second interval, selecting pattern two is that target adjusts wide mode, carries out the continuous change width adjustment of step-by-step movement；
When described difference is positioned at the 3rd interval, selecting pattern three is that target adjusts wide mode, carries out continuously and smoothly's change width adjustment；
When described difference is positioned at the 4th interval, selecting pattern four is that target adjusts wide mode, carries out speed change change width adjustment；
Described first interval range is 0mm～4mm, and described second interval range is 4mm～10mm, and described 3rd interval range is 10mm～20mm, and described 4th interval range is 20mm to the full section sizes of crystallizer.
2. a continuous casting crystallizer for plate billet On-Line Wide-Altering Device, it is characterised in that described device includes:
Difference acquiring unit, is used for obtaining crystallizer current width actual value, and calculates the difference of described actual value and the final goal value of setting；
Model selection adjustment unit, selects corresponding target to adjust wide mode for the interval range residing for described difference, then adjusts wide mode to carry out the online width adjustment of crystallizer according to the target selected；
Wherein said model selection adjustment unit includes:
First adjusting module, for when described difference is positioned at the first interval, selecting pattern one is that target adjusts wide mode, carries out tapering change；
Second adjusting module, for when described difference is positioned at the second interval, selecting pattern two is that target adjusts wide mode, carries out the continuous change width adjustment of step-by-step movement；
3rd adjusting module, for when described difference is positioned at the 3rd interval, selecting pattern three is that target adjusts wide mode, carries out continuously and smoothly's change width adjustment；
4th adjusting module, for when described difference is positioned at the 4th interval, selecting pattern four is that target adjusts wide mode, carries out speed change change width adjustment；
Described first interval range is 0mm～4mm, and described second interval range is 4mm～10mm, and described 3rd interval range is 10mm～20mm, and described 4th interval range is 20mm to the full section sizes of crystallizer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410400027.XA CN104128583B (en) | 2014-08-14 | 2014-08-14 | A kind of continuous casting crystallizer for plate billet on-line width adjustment method and device |
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| CN201410400027.XA CN104128583B (en) | 2014-08-14 | 2014-08-14 | A kind of continuous casting crystallizer for plate billet on-line width adjustment method and device |
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| CN105983674B (en) * | 2015-02-28 | 2018-03-30 | 宝山钢铁股份有限公司 | A kind of continuous casting automatic on-line adjusts wide control system and process control method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5018569A (en) * | 1988-07-04 | 1991-05-28 | Mannesmann Ag | Method for continuous casting of thin slab ingots |
| CN101693290A (en) * | 2007-06-28 | 2010-04-14 | 上海宝信软件股份有限公司 | On-line width adjusting method of cystallizer |
| CN102527974A (en) * | 2012-01-18 | 2012-07-04 | 重庆钢铁(集团)有限责任公司 | Method for preventing narrow surface of continuous casting sheet billet from bulging |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5018569A (en) * | 1988-07-04 | 1991-05-28 | Mannesmann Ag | Method for continuous casting of thin slab ingots |
| CN101693290A (en) * | 2007-06-28 | 2010-04-14 | 上海宝信软件股份有限公司 | On-line width adjusting method of cystallizer |
| CN102527974A (en) * | 2012-01-18 | 2012-07-04 | 重庆钢铁(集团)有限责任公司 | Method for preventing narrow surface of continuous casting sheet billet from bulging |
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