CN102115808B - Ferrite region rolling temperature control system - Google Patents
Ferrite region rolling temperature control system Download PDFInfo
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- CN102115808B CN102115808B CN 201010548338 CN201010548338A CN102115808B CN 102115808 B CN102115808 B CN 102115808B CN 201010548338 CN201010548338 CN 201010548338 CN 201010548338 A CN201010548338 A CN 201010548338A CN 102115808 B CN102115808 B CN 102115808B
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Abstract
The invention relates to a ferrite region rolling temperature control system which comprises a thickness meter, a rough rolling/finish rolling temperature sensor, a coarse adjustment cooling section, a fine adjustment cooling section, a hot coiling box coiling temperature sensor, a hot coiling box and an industrial control computer, wherein the thickness meter, rough rolling/finish rolling temperature sensor, coarse adjustment cooling section, fine adjustment cooling section, hot coiling box coiling temperature sensor and hot coiling box are sequentially arranged on a rolling line between a rough rolling mill group and a finish rolling mill group; and the thickness meter, rough rolling/finish rolling temperature sensor and the hot coiling box coiling temperature sensor are respectively connected through data lines and the industrial control computer. The coarse adjustment cooling section, fine adjustment cooling section and various sensors are added between the rough rolling mill group and finish rolling mill group on the traditional production line, and the rolling temperature of a steel billet is controlled by the remote control of the industrial control computer.
Description
Technical field
The present invention relates to a kind of ferrite region rolling temperature control system, belong to the smelting iron and steel technical field.
Background technology
Ferrite area is rolling to be the phase transformation controlled rolling, claims again the controlled rolling of Low Temperature Thermal machinery, is a kind of new rolling technology that development in recent years is got up.Be characterized in that roughing still finishes in the full austenite district, after the roughing, by the supper-fast cooling system between finishing mill and the roughing mill, make belt steel temperature before entering finishing mill, be reduced to below the Ar3, finish γ-α phase transformation, finishing stands is carried out in the ferrite area scope fully.
This rolling technology, most crucial content namely are the supper-fast cooling systems between roughing mill and the finishing mill, and belt steel temperature is reduced to before entering finishing train below the Ar3, finish γ-α phase transformation, and finishing stands is carried out in the ferrite area scope fully.But traditional production line is in that spacing is not set between roughing unit and the finishing train between cooling system and the two groups of units usually is nearer; Lower the temperature after making steel billet go out the roughing unit at once, enter finishing train thereupon, otherwise the steel billet temperature inequality all can cause difficulty to template control, mill load distribution, yet above process realizes difficult to having relatively high expectations that steel billet temperature is controlled.
Summary of the invention
For the deficiencies in the prior art, the present invention overcomes the condition restriction of characteristics of compact layout between traditional rolling line roughing unit and the finishing train, a kind of ferrite region rolling temperature control system is provided, namely by controlling steel billet temperature, utilize ferrite rolling technique rolling stock, realize steel billet γ-α phase transformation.
Explanation of nouns:
Thickness tester: the instrument that is Measuring Object thickness.The LPM series laser thickness gauge that the preferred Beijing of thickness tester of the present invention Bei Nuo mechanical ﹠ electronic equipment corporation, Ltd produces.
Temperature sensor: can select thermocouple temperature sensor, described thermopair is the platinum rhodium thermocouple that Anhui Tian Kang group produces, and its classification is platinum rhodium 30-platinum rhodium 6, code name: WRR, and calibration number: B, temperature-measuring range are 0～1800 degree centigrade.
Coil Box: after being installed in roughing mill, before the crop flying shear, after intermediate blank carried out no-core winder, open again coil of strip, intermediate blank in Coil Box with coil of strip form insulation, soaking, basically identical to guarantee intermediate blank temperature in length range, and the head and tail temperature difference of intermediate blank size can affect the quality index such as the thickness of slab, plate shape of the finished product.The advantage of Coil Box mainly contains the following aspects: the head and tail temperature difference that reduces intermediate blank; Reduce the temperature drop speed of intermediate blank; Reduce rolling line length and plant area; Reduce investment outlay and the energy; Reduce the secondary oxidation iron sheet; Reduce scaling loss, improve the steel recovery rate.
Technical scheme of the present invention is as follows:
A kind of ferrite region rolling temperature control system comprises thickness tester, roughing finishing temperature sensor, coarse adjustment cooling section, accurate adjustment cooling section, Coil Box coiling temperature sensor, Coil Box and industrial control computer; Described thickness tester, roughing finishing temperature sensor, coarse adjustment cooling section, accurate adjustment cooling section, Coil Box coiling temperature sensor and Coil Box are successively set on the rolling line between roughing unit and the finishing train; Described thickness tester, roughing finishing temperature sensor and Coil Box coiling temperature sensor link to each other with industrial control computer by data line respectively.
Described thickness tester and roughing finishing temperature sensor are successively set on the roughing unit rolling line afterwards, for detection of the steel billet thickness and the temperature that go out the roughing unit, and thickness, the temperature data that detects be transferred to industrial control computer by data line respectively, after industrial control computer is identified thickness, temperature data, automatically control opening in coarse adjustment cooling section, the accurate adjustment cooling section according to software program, thereby realize the control to steel billet temperature.
Before described Coil Box coiling temperature sensor is positioned at Coil Box, the temperature of coil of strip when being used for measuring the steel billet hot rolling, and will measure temperature and be transferred to industrial control computer by data line, after industrial control computer is identified temperature data, automatically control opening in coarse adjustment cooling section, the accurate adjustment cooling section according to software program, thereby realize the control to steel billet temperature, proofread and correct the required cooling power of cooling section.
Be provided with 2 Coil Box in the described ferrite region rolling temperature control system, two Coil Box are arranged on the billet conveying roller table between roughing unit and the finishing train.
Described coarse adjustment cooling section comprises cooling facility for laminar flow, is provided with the switch-valve that 2-10 group can not degree of tuning to open in the described cooling facility for laminar flow.Be subjected to industrial control computer control folding, when spraying water cooling, cooling-water flowing carries out coarse adjustment by switch-valve that can not degree of tuning to open to steel billet temperature in the coarse adjustment cooling section.
Described accurate adjustment cooling section comprises cooling facility for laminar flow, is provided with the switch-valve that 2-10 group can degree of tuning to open in the described cooling facility for laminar flow, is subjected to industrial control computer control folding, and the aperture scope of described switch-valve is: 0-100%.The accurate adjustment cooling section is by the openings of sizes of trip switch valve, variable cooling draught is provided, according to the needs of producing the temperature of steel billet is carried out accurate adjustment, realization is to the accurate control of steel billet temperature, described switch-valve aperture is 0-100%, has when reaching 100% aperture with the same cooling power of coarse adjustment cooling section.
The invention has the advantages that:
1, present device is simplified, and transforms on the basis of traditional rolling line, and quantities is little, and part transformation does not affect the normal production of production line;
2, the present invention adopts two Coil Box alternations, increase on the one hand the residence time of steel plate in Coil Box, promote cooled steel billet temperature homogenizing, finish rolling is created good conditions, guarantee can not cause negative impact to production efficiency with under the uniform prerequisite in temperature on the other hand, finish rolling rhythm is kept;
3, compact construction of the present invention for traditional rolling line, is applicable to upgrading between the roughing mill of compact construction and the finishing train;
4, the present invention is beneficial to the realization automatization, does not increase the execute-in-place amount.
Description of drawings
Fig. 1 is structural representation of the present invention;
Wherein: 1, roughing unit; 2, thickness tester; 3, roughing finishing temperature sensor; 4, coarse adjustment cooling section; 5, accurate adjustment cooling section; 6, Coil Box coiling temperature sensor; 7,1# Coil Box; 8,2# Coil Box; 9, finishing train.
Embodiment
The present invention will be further described below in conjunction with drawings and Examples, but be not limited to this.
Embodiment 1,
As shown in Figure 1, a kind of ferrite region rolling temperature control system comprises thickness tester 2, roughing finishing temperature sensor 3, coarse adjustment cooling section 4, accurate adjustment cooling section 5, Coil Box coiling temperature sensor 6, Coil Box and industrial control computer; Described thickness tester 2, roughing finishing temperature sensor 3, coarse adjustment cooling section 4, accurate adjustment cooling section 5, Coil Box coiling temperature sensor 6 and Coil Box are successively set on the rolling line between roughing unit 1 and the finishing train 9; Described thickness tester 2, roughing finishing temperature sensor 3 and Coil Box coiling temperature sensor 6 link to each other with industrial control computer by data line respectively.
Described thickness tester 2 and roughing finishing temperature sensor 3 are successively set on roughing unit 1 rolling line afterwards, for detection of the steel billet thickness and the temperature that go out the roughing unit, and thickness, the temperature data that detects be transferred to industrial control computer by data line respectively, after industrial control computer is identified thickness, temperature data, automatically control opening in coarse adjustment cooling section 4, the accurate adjustment cooling section 5 according to software program, thereby realize the control to steel billet temperature.
Before described Coil Box coiling temperature sensor 6 is positioned at Coil Box, the temperature of coil of strip when being used for measuring the steel billet hot rolling, and will measure temperature and be transferred to industrial control computer by data line, after industrial control computer is identified temperature data, automatically control the opening of switch-valve in coarse adjustment cooling section 4, the accurate adjustment cooling section 5 according to software program, thereby realize the control to steel billet temperature, proofread and correct the required cooling power of cooling section.
Be provided with 2 Coil Box in the described ferrite region rolling temperature control system, two Coil Box are arranged on the billet conveying roller table between roughing mill and the finishing mill, two Coil Box are existing Coil Box, steel billet namely is delivered to the 1# Coil Box along billet conveying roller table after the roughing of roughing unit finishes, after the 1# Coil Box is curling with steel billet, this Coil Box supplementary unit playback makes lower passage steel plate can be delivered to via the steel plate conveying roller under the Coil Box 2# Coil Box, when the 2# Coil Box finish curling after, this Coil Box supplementary unit playback, the auxiliary mechanism of 1# Coil Box is in the working position, steel billet temperature homogenizing in the 1# Coil Box is finished the steel billet that namely spues, carry to finishing train via the steel plate conveying roller under the 2# Coil Box, the steel billet that wait roughing passage was sent here after the 1# Coil Box was carried and finished is also curling, 1# Coil Box supplementary unit playback after the curling end, the auxiliary mechanism of 2# Coil Box is in the working position, steel billet temperature homogenizing in the 2# Coil Box is finished the steel billet that namely spues, carry to finishing train via steel plate conveying roller, the steel billet that wait roughing passage was sent here after the 2# Coil Box was carried and finished is also curling, when the 2# Coil Box finish curling after, the playback of this Coil Box supplementary unit, afterwards production in series successively.When rolling steel grade need long equalizing temperature during the time, but tandem is arranged 2 groups of above Coil Box.
Described coarse adjustment cooling section comprises cooling facility for laminar flow, be provided with in the described cooling facility for laminar flow 2 groups can not degree of tuning to open switch-valve.Be subjected to industrial control computer control folding, when spraying water cooling, switch-valve that can not degree of tuning to open makes the coarse adjustment cooling section provide stable cooling-water flowing that the temperature of steel billet is carried out coarse adjustment.
Described accurate adjustment cooling section comprises cooling facility for laminar flow, be provided with in the described cooling facility for laminar flow 2 groups can degree of tuning to open switch-valve, be subjected to industrial control computer control folding, and can regulate arbitrarily in the 0-100% aperture.The accurate adjustment cooling section is by the openings of sizes of trip switch valve, variable cooling draught is provided, according to the needs of producing the temperature of steel billet is carried out accurate adjustment, realization is to the accurate control of steel billet temperature, described switch-valve aperture is 0-100%, has when reaching 100% aperture with the same cooling power of coarse adjustment cooling section.
When being used for the mill coil rolling line and transforming, the coarse adjustment cooling section, by 2 groups can not degree of tuning to open the cooling facility for laminar flow of switch-valve control form; The accurate adjustment cooling section, by 2 groups can degree of tuning to open the cooling facility for laminar flow of switch-valve control form.
The LPM series laser thickness gauge that the preferred Beijing of thickness tester of the present invention Bei Nuo mechanical ﹠ electronic equipment corporation, Ltd produces.
Described temperature sensor can be selected thermocouple temperature sensor, and described thermopair is the platinum rhodium thermocouple that Anhui Tian Kang group produces, and its classification is platinum rhodium 30-platinum rhodium 6, code name: WRR, and calibration number: B, temperature-measuring range are 0～1800 degree centigrade.
Working process:
Begin when rolling, first block of steel billet measured steel billet thickness, temperature respectively through thickness tester 2, roughing unit finishing temperature sensor 3 after roughing unit 1 is rolling successively.Measured data transmission is to industrial control computer, by Temperature Control Model control cooling section cooling power, when steel plate process cooling section, coarse adjustment cooling section 4 cools off steel plate with stable cooling power steel billet temperature is carried out coarse adjustment, when steel plate process accurate adjustment cooling section 5, the Temperature Control Model that obtains steel plate thickness and temperature is regulated this cooling section cooling power by industrial control computer, makes steel billet accurately be cooled to temperature required section on the basis that coarse adjustment cooling section temperature reduces.By the steel billet behind the cooling section after the curling temperature sensor of Coil Box 6 is measured temperature, it is curling to enter 1# Coil Box 7, and the steel plate after curling continues entire volume and rotates and carry out equalizing temperature and prevent from because of excess Temperature coiled up device being damaged in this process in the 1# Coil Box.When first block of steel billet sequentially processed, second block of steel billet follows first block of steel billet closely and sequentially processes, and the accurate adjustment cooling section 5 after the curling front Temperature Feedback adjustment of first block of steel billet measuring by the curling temperature sensor of Coil Box 6 is to obtain more preferably control target temperature, second block of steel billet enters into 2# Coil Box 8 and carries out curling after finishing successively the order processing link, when the second block plate is curling finish after, 1# Coil Box 7 begins first coil of strip spued, make first coil of strip enter into finishing train 9 and be rolled, follow-up steel billet is produced successively.
Embodiment 2,
A kind of ferrite region rolling temperature control system as described in Example 1, difference is: the coarse adjustment cooling section comprises cooling facility for laminar flow, be provided with in the described cooling facility for laminar flow 10 groups can not degree of tuning to open switch-valve, described accurate adjustment cooling section comprises cooling facility for laminar flow, be provided with in the described cooling facility for laminar flow 10 groups can degree of tuning to open switch-valve.
Claims (1)
1. ferrite region rolling temperature control system, this system comprises thickness tester, roughing finishing temperature sensor, coarse adjustment cooling section, accurate adjustment cooling section, Coil Box coiling temperature sensor, Coil Box and industrial control computer; Described thickness tester, roughing finishing temperature sensor, coarse adjustment cooling section, accurate adjustment cooling section, Coil Box coiling temperature sensor and Coil Box are successively set on the rolling line between roughing unit and the finishing train; Described thickness tester, roughing finishing temperature sensor and Coil Box coiling temperature sensor link to each other with industrial control computer by data line respectively; Be provided with 2 Coil Box in the described ferrite region rolling temperature control system, two Coil Box are arranged on the billet conveying roller table between roughing unit and the finishing train; Described coarse adjustment cooling section comprises cooling facility for laminar flow, is provided with the switch-valve that 2-10 group can not degree of tuning to open in the described cooling facility for laminar flow; Described accurate adjustment cooling section comprises cooling facility for laminar flow, is provided with the switch-valve that 2-10 group can degree of tuning to open in the described cooling facility for laminar flow, and the aperture scope of described switch-valve is: 0-100%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010548338 CN102115808B (en) | 2010-11-17 | 2010-11-17 | Ferrite region rolling temperature control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010548338 CN102115808B (en) | 2010-11-17 | 2010-11-17 | Ferrite region rolling temperature control system |
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| CN102115808A CN102115808A (en) | 2011-07-06 |
| CN102115808B true CN102115808B (en) | 2013-04-24 |
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| CN 201010548338 Expired - Fee Related CN102115808B (en) | 2010-11-17 | 2010-11-17 | Ferrite region rolling temperature control system |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113828643A (en) * | 2020-06-23 | 2021-12-24 | 上海梅山钢铁股份有限公司 | Temperature control method for rolling strip steel in ferrite area |
| CN112264463B (en) * | 2020-09-29 | 2022-09-02 | 浙江缙云韩立锯业有限公司 | Sectional type high-speed steel flat wire hot rolling production line and wire feeding speed control method thereof |
| CN114405993B (en) * | 2022-01-28 | 2024-04-02 | 中冶赛迪工程技术股份有限公司 | Method for line bar production line head-removing rolling |
| CN115716086B (en) * | 2022-12-09 | 2023-11-21 | 中冶南方工程技术有限公司 | Continuous casting and rolling production unit and method for hot-rolled ultrathin strip steel |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997046332A1 (en) * | 1996-06-07 | 1997-12-11 | Hoogovens Staal B.V. | Method and apparatus for the manufacture of a steel strip |
| CN1748039A (en) * | 2003-02-05 | 2006-03-15 | 于西纳公司 | Production of cold rolled steel strip with a dual phase ferrite-martensite structure and strips thereby |
| CN101618396A (en) * | 2008-06-30 | 2010-01-06 | 上海梅山钢铁股份有限公司 | Method for rolling interstitial free steel ferrite on traditional hot rolling mills |
| CN101680046A (en) * | 2007-10-29 | 2010-03-24 | 现代制铁株式会社 | A cold rolledsteel sheet and method for manufacturing the same |
-
2010
- 2010-11-17 CN CN 201010548338 patent/CN102115808B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997046332A1 (en) * | 1996-06-07 | 1997-12-11 | Hoogovens Staal B.V. | Method and apparatus for the manufacture of a steel strip |
| CN1748039A (en) * | 2003-02-05 | 2006-03-15 | 于西纳公司 | Production of cold rolled steel strip with a dual phase ferrite-martensite structure and strips thereby |
| CN101680046A (en) * | 2007-10-29 | 2010-03-24 | 现代制铁株式会社 | A cold rolledsteel sheet and method for manufacturing the same |
| CN101618396A (en) * | 2008-06-30 | 2010-01-06 | 上海梅山钢铁股份有限公司 | Method for rolling interstitial free steel ferrite on traditional hot rolling mills |
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| CN102115808A (en) | 2011-07-06 |
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