CN102115808A - Ferrite region rolling temperature control system - Google Patents
Ferrite region rolling temperature control system Download PDFInfo
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- CN102115808A CN102115808A CN 201010548338 CN201010548338A CN102115808A CN 102115808 A CN102115808 A CN 102115808A CN 201010548338 CN201010548338 CN 201010548338 CN 201010548338 A CN201010548338 A CN 201010548338A CN 102115808 A CN102115808 A CN 102115808A
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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 area rolling temperature Controlling System, belong to the smelting iron and steel technical field.
Background technology
Ferrite area is rolling to be the phase transformation controlled rolling, claims low warm mechanical controlled rolling again, 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,, make belt steel temperature before entering finishing mill, be reduced to below the Ar3 by the supper-fast cooling system between finishing mill and the roughing mill, finish γ-α phase transformation, the finish rolling process is carried out in the ferrite area scope fully.
This rolling technology, most crucial content promptly 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 the finish rolling process 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
At the deficiencies in the prior art, the present invention overcomes the condition restriction of arranging compactness between traditional rolling line roughing unit and the finishing train, a kind of ferrite area rolling temperature Controlling System is provided, promptly by controlling to steel billet temperature, utilize ferrite rolling technology rolling stock, realize steel billet γ-α phase transformation.
Explanation of nouns:
Thickness tester: be to be used for the instrument of 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 for use, described thermopair is the platinum rhodium thermocouple that Anhui Tian Kang group produces, and its classification is a 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, intermediate blank is carried out after centreless batches, open coil of strip again, intermediate blank in Coil Box with coil of strip form insulation, soaking, guaranteeing intermediate blank temperature basically identical in length range, and the head and tail temperature difference of intermediate blank size can influence 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 area rolling temperature Controlling System comprises thickness tester, roughing finishing temperature transmitter, coarse adjustment cooling section, accurate adjustment cooling section, Coil Box coiling temperature transmitter, Coil Box and industrial control computer; Described thickness tester, roughing finishing temperature transmitter, coarse adjustment cooling section, accurate adjustment cooling section, Coil Box coiling temperature transmitter and Coil Box are successively set on the rolling line between roughing unit and the finishing train; Described thickness tester, roughing finishing temperature transmitter and Coil Box coiling temperature transmitter link to each other with industrial control computer by data line respectively.
Described thickness tester and roughing finishing temperature transmitter are successively set on the roughing unit rolling line afterwards, be used to detect the steel billet thickness and the temperature of roughing unit, and detected thickness, temperature data be transferred to industrial control computer by data line respectively, after industrial control computer is discerned thickness, temperature data, automatically control opening in coarse adjustment cooling section, the accurate adjustment cooling section according to software program, thereby realize control steel billet temperature.
Before described Coil Box coiling temperature transmitter is positioned at Coil Box, the temperature of coil of strip when being used to measure the steel billet hot rolling, and will measure temperature and be transferred to industrial control computer by data line, after industrial control computer is discerned temperature data, automatically control opening in coarse adjustment cooling section, the accurate adjustment cooling section according to software program, thereby realize control, proofread and correct the required cooling power of cooling section steel billet temperature.
Be provided with 2 Coil Box in the described ferrite area rolling temperature Controlling System, two Coil Box are arranged on the steel billet rollgang between roughing unit and the finishing train.
Described coarse adjustment cooling section comprises cooling facility for laminar flow, is provided with the 2-10 group in the described cooling facility for laminar flow and can not transfers the switch-valve of aperture.Be subjected to industrial control computer control folding, when spraying water cooling, cooling-water flowing carries out coarse adjustment by the switch-valve that can not transfer aperture 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 2-10 group in the described cooling facility for laminar flow and can transfers the switch-valve of aperture, 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 influence the ordinary production of production line;
2, the present invention adopts two Coil Box alternations, increase the residence time of steel plate in Coil Box on the one hand, 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 a structural representation of the present invention;
Wherein: 1, roughing unit; 2, thickness tester; 3, roughing finishing temperature transmitter; 4, coarse adjustment cooling section; 5, accurate adjustment cooling section; 6, Coil Box coiling temperature transmitter; 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 thereto.
Embodiment 1,
As shown in Figure 1, a kind of ferrite area rolling temperature Controlling System comprises thickness tester 2, roughing finishing temperature transmitter 3, coarse adjustment cooling section 4, accurate adjustment cooling section 5, Coil Box coiling temperature transmitter 6, Coil Box and industrial control computer; Described thickness tester 2, roughing finishing temperature transmitter 3, coarse adjustment cooling section 4, accurate adjustment cooling section 5, Coil Box coiling temperature transmitter 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 transmitter 3 and Coil Box coiling temperature transmitter 6 link to each other with industrial control computer by data line respectively.
Described thickness tester 2 and roughing finishing temperature transmitter 3 are successively set on roughing unit 1 rolling line afterwards, be used to detect the steel billet thickness and the temperature of roughing unit, and detected thickness, temperature data be transferred to industrial control computer by data line respectively, after industrial control computer is discerned thickness, temperature data, automatically control opening in coarse adjustment cooling section 4, the accurate adjustment cooling section 5 according to software program, thereby realize control steel billet temperature.
Before described Coil Box coiling temperature transmitter 6 is positioned at Coil Box, the temperature of coil of strip when being used to measure the steel billet hot rolling, and will measure temperature and be transferred to industrial control computer by data line, after industrial control computer is discerned 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 control, proofread and correct the required cooling power of cooling section steel billet temperature.
Be provided with 2 Coil Box in the described ferrite area rolling temperature Controlling System, two Coil Box are arranged on the steel billet rollgang between roughing mill and the finishing mill, two Coil Box are existing Coil Box, steel billet promptly is delivered to the 1# Coil Box along the steel billet rollgang after the roughing of roughing unit finishes, after the 1# Coil Box is curled steel billet, this Coil Box supplementary unit playback makes down the passage steel plate be delivered to the 2# Coil Box via the steel plate rollgang under the Coil Box, when the 2# Coil Box finish curl 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 promptly spues, carry to finishing train via the steel plate rollgang under the 2# Coil Box, the 1# Coil Box carries the steel billet that finishes to wait for that the roughing passage is sent here in the back also to curl, curl and finish back 1# Coil Box supplementary unit playback, 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 promptly spues, carry to finishing train via the steel plate rollgang, the 2# Coil Box carries the steel billet that finishes to wait for that the roughing passage is sent here in the back also to curl, when the 2# Coil Box finish curl after, the playback of this Coil Box supplementary unit, production in series successively afterwards.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, is provided with the 2 groups of switch-valves that can not transfer aperture in the described cooling facility for laminar flow.Be subjected to industrial control computer control folding, when spraying water cooling, can not transfer the switch-valve of aperture to make 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, is provided with the 2 groups of switch-valves that can transfer aperture in the described cooling facility for laminar flow, is subjected to industrial control computer control folding, and can regulates 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 transformation of mill coil rolling line, the coarse adjustment cooling section can not transfer the cooling facility for laminar flow of the switch-valve control of aperture to form by 2 groups; The accurate adjustment cooling section can transfer the cooling facility for laminar flow of the switch-valve control of aperture to form by 2 groups.
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 for use, and described thermopair is the platinum rhodium thermocouple that Anhui Tian Kang group produces, and its classification is a 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 transmitter 3 after roughing unit 1 is rolling successively.Measured data transmission is to industrial control computer, by Temperature Control Model controlled chilling 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.Curl after temperature sensor 6 measures temperature through Coil Box by the steel billet behind the cooling section, enter 1# Coil Box 7 and curl, the steel plate after curling continues whole volume rotation and carries out equalizing temperature and prevent that Yin Wendu is too high in this process coiled up device is damaged in the 1# Coil Box.When first block of steel billet processed in proper order, second block of steel billet follows first block of steel billet closely and processes in proper order, and curl before the curling of first block of steel billet that temperature sensor 6 measures the adjusted accurate adjustment cooling section 5 of Temperature Feedback to obtain better control target temperature by Coil Box, second block of steel billet enters into 2# Coil Box 8 and curls after finishing the order processing link successively, when second block plate curl 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,
As embodiment 1 described a kind of ferrite area rolling temperature Controlling System, difference is: the coarse adjustment cooling section comprises cooling facility for laminar flow, be provided with the 10 groups of switch-valves that can not transfer aperture in the described cooling facility for laminar flow, described accurate adjustment cooling section comprises cooling facility for laminar flow, is provided with the 10 groups of switch-valves that can transfer aperture in the described cooling facility for laminar flow.
Claims (4)
1. a ferrite area rolling temperature Controlling System comprises thickness tester, roughing finishing temperature transmitter, coarse adjustment cooling section, accurate adjustment cooling section, Coil Box coiling temperature transmitter, Coil Box and industrial control computer; Described thickness tester, roughing finishing temperature transmitter, coarse adjustment cooling section, accurate adjustment cooling section, Coil Box coiling temperature transmitter and Coil Box are successively set on the rolling line between roughing unit and the finishing train; Described thickness tester, roughing finishing temperature transmitter and Coil Box coiling temperature transmitter link to each other with industrial control computer by data line respectively.
2. system according to claim 1 is characterized in that, is provided with 2 Coil Box in the described ferrite area rolling temperature Controlling System, and two Coil Box are arranged on the steel billet rollgang between roughing unit and the finishing train.
3. system according to claim 1 is characterized in that, described coarse adjustment cooling section comprises cooling facility for laminar flow, is provided with the 2-10 group in the described cooling facility for laminar flow and can not transfers the switch-valve of aperture.
4. system according to claim 1 is characterized in that, described accurate adjustment cooling section comprises cooling facility for laminar flow, is provided with the 2-10 group in the described cooling facility for laminar flow and can transfers the switch-valve of aperture, 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 true CN102115808A (en) | 2011-07-06 |
| CN102115808B 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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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112264463A (en) * | 2020-09-29 | 2021-01-26 | 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 |
| 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 |
| CN114405993A (en) * | 2022-01-28 | 2022-04-29 | 中冶赛迪工程技术股份有限公司 | A kind of method for stripping rolling of wire rod production line |
| CN115716086A (en) * | 2022-12-09 | 2023-02-28 | 中冶南方工程技术有限公司 | Hot-rolled ultrathin strip steel endless continuous casting and rolling production unit and production method thereof |
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| 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 |
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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 |
Cited By (6)
| 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 |
| CN112264463A (en) * | 2020-09-29 | 2021-01-26 | 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 |
| CN114405993A (en) * | 2022-01-28 | 2022-04-29 | 中冶赛迪工程技术股份有限公司 | A kind of method for stripping rolling of wire rod production line |
| 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 |
| CN115716086A (en) * | 2022-12-09 | 2023-02-28 | 中冶南方工程技术有限公司 | Hot-rolled ultrathin strip steel endless continuous casting and rolling production unit and production method thereof |
| 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 |
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| CN102115808B (en) | 2013-04-24 |
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