CN102534177A - Continuous annealing unit and circulating temperature control device for aging section of continuous annealing unit - Google Patents
Continuous annealing unit and circulating temperature control device for aging section of continuous annealing unit Download PDFInfo
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- CN102534177A CN102534177A CN2012100526588A CN201210052658A CN102534177A CN 102534177 A CN102534177 A CN 102534177A CN 2012100526588 A CN2012100526588 A CN 2012100526588A CN 201210052658 A CN201210052658 A CN 201210052658A CN 102534177 A CN102534177 A CN 102534177A
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- loop temperature
- timeliness
- expansion joint
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
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Abstract
The invention discloses a circulating temperature control device for the aging section of a continuous annealing unit. The circulating temperature control device comprises a pipeline, a valve, a heat exchanger, a first expansion joint and a blower, wherein one end of the pipeline is communicated with the bottom of a firebox on the aging section; the other end of the pipeline is communicated with the top of the firebox on the aging section; the valve, the heat exchanger, the first expansion joint and the blower are arranged on the pipeline in sequence; the valve is adjacent to the bottom of the valve firebox on the aging section; and the heat exchanger is used for controlling the temperature of a gaseous medium in the aging section of the continuous annealing unit in a heat exchange manner. According to the requirements of production, the temperature in the firebox can be adjusted and controlled fast, and the consumption of the gaseous medium is greatly reduced through the cyclic utilization of the gaseous medium. Moreover, the temperature of the gaseous medium can be controlled fast and effectively; the production of transitional materials is effectively reduced; the production rhythm is accelerated; and the circulating temperature control device has a wide potentiality in the technical popularization of an annealing furnace in the continuous annealing unit.
Description
Technical field
The present invention relates to the HTFX field of steel rolling, more particularly, relate to a kind of company and move back the loop temperature-control device of unit timeliness section and comprise that the company of this loop temperature-control device moves back unit.
Background technology
Even moving back in the unit, lehre is heat-treated the band steel.Lehre comprises preheating section, heating zone, soaking zone, slow cooling section, fast cold section, timeliness section (OAS section hereinafter referred to as), cold section and watch-quench tank eventually, and the major function of OAS section is exactly at N
2, H
2Under gaseous media, insulation belt steel certain hour is at a certain temperature accelerated the timeliness efficient of band steel, makes the band steel reach needed internal mechanical performance.
Carry out in the ageing treatment process at the band steel, the temperature in the OAS section burner hearth is the key technical index of ageing treatment, and according to different steel grades, the temperature in the OAS section burner hearth will be carried out real-time regulated.In the prior art, the temperature in the OAS section burner hearth is to heat through electric radiant tube or resistive band, through replenishing the N under the room temperature
2, H
2Cool off the N that burner hearth is unnecessary Deng gaseous media
2, H
2Emit Deng the self-draining valve of gaseous media through furnace roof.
Prior art problems comprises: replenish N
2, H
2Pipeline Deng gaseous media generally is designed to Φ 50mm latus rectum, and the magnitude of recruitment of its unit time is limited, and has prolonged additional N
2, H
2Deng the needed time of gaseous media.This can't solve the problems referred to above through the pipeline of selecting big caliber; Because the caliber value is crossed conference and is caused the fluctuation of burner hearth thermal inertia; Influence the burner hearth thermal energy balance and the pressure equilibrium that are connected with the OAS section, thus cause the time of producing transitional product to grow, defective such as the quantitative change of the waster of generation is big.In addition, if the N that replenishes
2, H
2By natural discharging, this also causes N except causing the pollution of environment Deng gaseous media
2, H
2Deng the free consumption of gaseous media, make the energy consumption cost of OAS section operation increase.
Summary of the invention
The object of the present invention is to provide the reliable and practical company of a cover to move back the loop temperature-control device of unit timeliness section, is N in the OAS section burner hearth through newly-increased loop temperature-control device
2, H
2Reduction Deng gas medium temperature increases by a cover conditioning equipment, so that the technology pattern of whole OAS section and equipment configuration more can be satisfied the actual production demand.
To achieve these goals; One side of the present invention provides a kind of company to move back the loop temperature-control device of unit timeliness section; Said loop temperature-control device comprises pipeline, valve, heat exchanger, first expansion joint and blower fan; Wherein, an end of said pipeline is communicated with the bottom of timeliness section burner hearth, and the other end of said pipeline is communicated with the top of timeliness section burner hearth; Said valve, heat exchanger, first expansion joint and blower fan are set in sequence on the said pipeline, and the bottom of said valve and timeliness section burner hearth is adjacent; Said heat exchanger is controlled through the mode of heat exchange and is connected the temperature of moving back the gaseous media in the unit timeliness section.
Move back the loop temperature-control device of unit timeliness section according to company of the present invention, said loop temperature-control device also comprises second expansion joint, and said second expansion joint is arranged on the said pipeline and between the other end of blower fan and said pipeline.
Move back the loop temperature-control device of unit timeliness section according to company of the present invention, said first expansion joint, second expansion joint are bellows structure.
Move back the loop temperature-control device of unit timeliness section according to company of the present invention, said first expansion joint, second expansion joint adopt the flange connection mode to install.
Move back the loop temperature-control device of unit timeliness section according to company of the present invention, said blower fan is airtight blower fan, and the blanket gas of said airtight blower fan is a nitrogen.
Move back the loop temperature-control device of unit timeliness section based on company of the present invention, said blower fan is connected with motor through shaft coupling, thus the gas medium in said driven by motor blower fan running suction or the extrusion timeliness section burner hearth.
Move back the loop temperature-control device of unit timeliness section according to company of the present invention, said motor is a change speed motor.
Move back the loop temperature-control device of unit timeliness section according to company of the present invention, said loop temperature-control device also comprises supporting with it mathematical control model.
One side of the present invention provides a kind of company to move back unit; Said company moves back unit and comprises lehre; Said lehre comprises preheating section, heating zone, soaking zone, slow cooling section, fast cold section, timeliness section, cold section and watch-quench tank eventually, and said timeliness section is provided with above-mentioned loop temperature-control device.
Move back unit according to company of the present invention, the quantity of said loop temperature-control device is more than a cover or two overlaps.
Compared with prior art; The present invention can be according to the production demand; Apace the temperature of burner hearth is regulated control, through the recycle of gaseous media being reduced greatly the consumption of shielding gas, also very little to furnace pressure and thermal inertia influence; The reflection sensitivity of can the lift set product switching, and improve unit lumber recovery and quality product; In addition, quick and effective to the temperature control of gaseous media, can effectively reduce the production of transition material, faster production rhythm possesses and is even moving back the great potential that the unit lehre makes technological knowledge popular.
Description of drawings
Through below in conjunction with the description of accompanying drawing to exemplary embodiment of the present invention, of the present invention above-mentionedly will become apparent with other purposes and characteristics, wherein:
Fig. 1 connects the loop temperature-control schematic representation of apparatus of moving back unit timeliness section according to an exemplary embodiment of the present invention.
Main description of reference numerals:
1-timeliness section burner hearth, 2-valve, 3-heat exchanger, 4-first expansion joint, 5-blower fan, 6-second expansion joint, 7-pipeline, 8-shaft coupling, 9-motor.
Embodiment
Below, specify exemplary embodiment of the present invention with reference to accompanying drawing.The present invention utilizes from timeliness section burner hearth bottom extract heat gaseous media, injects the pattern of cold air medium again toward timeliness section roof of the furnace, makes full use of the characteristic that the cold air medium sinks, and makes the atmosphere temperature in the timeliness section burner hearth reach required temperature condition apace.
Fig. 1 connects the loop temperature-control schematic representation of apparatus of moving back unit timeliness section according to an exemplary embodiment of the present invention, and the arrow among the figure is represented flow direction.The loop temperature-control device that unit timeliness section is moved back by company according to the present invention comprises pipeline 7, valve 2, heat exchanger 3, first expansion joint 4 and blower fan 5; One end of pipeline 7 is communicated with the bottom of timeliness section burner hearth 1; The other end of pipeline 7 is communicated with the top of timeliness section burner hearth 1; Valve 2, heat exchanger 3, first expansion joint 4 and blower fan 5 are set in sequence on the pipeline 7; And valve 2 is adjacent with the bottom of timeliness section burner hearth 1, and heat exchanger 3 is controlled through the mode of heat exchange and connected the temperature of moving back the gaseous media in the unit timeliness section, and loop temperature-control device and timeliness section burner hearth 1 form the closed circuit passage of gaseous media.
Wherein, the above-mentioned gas medium is specially shielding gas such as nitrogen or hydrogen.
Each parts that at first the loop temperature-control device of unit timeliness section is moved back in company of the present invention are elaborated.
Valve 2 is used to realize under loop temperature-control device busy/non-operating mode the control to gaseous media.Preferably, valve 2 is a flap valve.Under operating mode, valve 2 is opened, and can make the hot gas medium in the timeliness section burner hearth 1 get into valve 2 and get into the loop temperature-control device then; Under non-operating mode, valve 2 is closed, and then can avoid gaseous media and loop temperature-control device generation natural convection in the timeliness section burner hearth 1, and avoid influencing the temperature and pressure in the timeliness section burner hearth 1.
First expansion joint 4 is used to remedy the rising-heat contracting-cold amount of valve 2 and heat exchanger 3, avoids blower fan 5 is produced pressure.Particularly, first expansion joint 4 is a bellows structure.For the ease of the maintenance and the maintenance of expansion joint, first expansion joint 4 preferably adopts the flange connection mode to install, and promptly is connected with pipeline 7 through flange.
Preferably, loop temperature-control device of the present invention can comprise that also second expansion joint, 6, the second expansion joints 6 are arranged on the pipeline 7 and between the other end of blower fan 5 and pipeline 7.Second expansion joint 6 also is the amount of expanding with heat and contract with cold that is used to remedy pipeline 7, avoids blower fan 5 is produced pressure, specifically can select whether to be provided with according to practical situation.Consistent with first expansion joint 5, second expansion joint 6 also is a bellows structure, and adopts the flange connection mode to install.
For the ease of real-time Control Circulation temperature regulating device, can also set up the mathematical control model with the loop temperature-control matched with devices, promptly set up mathematical model through the thermal energy balance formula, according to demand the gas medium temperature in the timeliness section burner hearth 1 is controlled.
Particularly, connect and to move back unit and comprise lehre, lehre comprises preheating section, heating zone, soaking zone, slow cooling section, fast cold section, timeliness section, cold section and watch-quench tank eventually, and loop temperature-control device of the present invention is arranged at and connects the timeliness section of moving back unit.This loop temperature-control device is the additional regulating measure of moving back unit timeliness section burner hearth as connecting; And the volume of timeliness section section burner hearth 1 is very big; Variation along with product specification; Temperature in the timeliness section section burner hearth 1 needs adjustment in real time, and the rising of temperature can be heated through electric radiant tube or resistive band, and the reduction of temperature then need realize through newly-installed loop temperature-control device.Therefore, can be as required connect move back a cover is set on the unit timeliness section or more than two covers above-mentioned loop temperature-control device to realize better regulating effect.
Move back the loop temperature-control device of unit timeliness section below in conjunction with the company of exemplary embodiment of the present and describe its working method.
When the temperature in the needs adjusting timeliness section burner hearth 1, open motor 9 and also drive blower fan 5 runnings, heat exchanger 3 is injected recirculated cooling waters simultaneously.Under the suction of blower fan 5, the hot gas medium of timeliness section burner hearth 1 bottom enters into heat exchanger 3 through valve 2, and the recirculated cooling water in hot gas medium and the heat exchanger 3 carries out heat exchange, and the hot gas medium is cooled thus.The gaseous media that is cooled enters into first expansion joint 4 and blower fan 5; And under the driving action of blower fan 5, get into second expansion joint 6; Get back to the top of timeliness section burner hearth 1 afterwards through pipeline 7; The gaseous media that is cooled in timeliness section burner hearth 1, sink and with hot gas medium thorough mixing, effectively reduce the temperature in the timeliness section burner hearth 1 thus.So far then accomplish the closed cycle of gaseous media in timeliness section burner hearth 1 and loop temperature-control device, can reach the purpose of temperature in the adjusting timeliness section burner hearth 1 through the repeatedly above-mentioned closed cycle of gaseous media.The loop temperature-control device that unit timeliness section is moved back by company according to the present invention can make the gaseous media in the timeliness section burner hearth 1 circulate constantly, need not remedy new gaseous media basically, thereby cut down the consumption of energy greatly.
Above technical characterictic has constituted exemplary embodiment of the present invention, and it has stronger flexibility and best implementation result, can increase and decrease non-essential technical characterictic according to actual needs, satisfies the demand of different situations.
In sum, utilize company of the present invention to move back the loop temperature-control device of unit timeliness section, can regulate control to the temperature of timeliness section burner hearth apace according to the production demand; Closed cycle through gaseous media in the timeliness section burner hearth greatly reduces energy consumption; Temperature control to gaseous media is quick and effective, can effectively reduce the production of transition material, and faster production rhythm possesses and even moving back the great potential that the unit lehre makes technological knowledge popular.
Although specifically described the loop temperature-control device that moves back unit timeliness section that is used for connecting of the present invention with reference to embodiments of the invention; But those skilled in the art will be appreciated that; Under the situation that does not break away from the spirit and scope of the present invention, can make various forms of changes to embodiment.
Claims (10)
1. the loop temperature-control device of unit timeliness section moves back in a company, it is characterized in that said loop temperature-control device comprises pipeline, valve, heat exchanger, first expansion joint and blower fan, wherein,
One end of said pipeline is communicated with the bottom of timeliness section burner hearth, and the other end of said pipeline is communicated with the top of timeliness section burner hearth;
Said valve, heat exchanger, first expansion joint and blower fan are set in sequence on the said pipeline, and the bottom of said valve and timeliness section burner hearth is adjacent;
Said heat exchanger is controlled through the mode of heat exchange and is connected the temperature of moving back the gaseous media in the unit timeliness section.
2. the loop temperature-control device of unit timeliness section moves back in company according to claim 1, it is characterized in that, said loop temperature-control device also comprises second expansion joint, and said second expansion joint is arranged on the said pipeline and between the other end of blower fan and said pipeline.
3. according to claim 2 being used for connects the loop temperature-control device that moves back unit timeliness section, it is characterized in that said first expansion joint, second expansion joint are bellows structure.
4. according to claim 2 being used for connects the loop temperature-control device that moves back unit timeliness section, it is characterized in that, said first expansion joint, second expansion joint adopt the flange connection mode to install.
5. according to claim 1 being used for connects the loop temperature-control device that moves back unit timeliness section, it is characterized in that said blower fan is airtight blower fan, and the blanket gas of said airtight blower fan is a nitrogen.
6. according to claim 1 being used for connects the loop temperature-control device that moves back unit timeliness section, it is characterized in that, said blower fan is connected with motor through shaft coupling, thereby the running of said driven by motor blower fan sucks or extrude the gaseous media in the timeliness section burner hearth.
7. according to claim 6 being used for connects the loop temperature-control device that moves back unit timeliness section, it is characterized in that said motor is a change speed motor.
8. according to claim 1 being used for connects the loop temperature-control device that moves back unit timeliness section, it is characterized in that said loop temperature-control device also comprises supporting with it mathematical control model.
9. unit moves back in a company; Said company moves back unit and comprises lehre; Said lehre comprises preheating section, heating zone, soaking zone, slow cooling section, fast cold section, timeliness section, cold section and watch-quench tank eventually; It is characterized in that said timeliness section is provided with like any described loop temperature-control device in the claim 1 to 8.
10. move back unit based on the described company of claim 9, it is characterized in that, the quantity of said loop temperature-control device is more than a cover or two overlaps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210052658.8A CN102534177B (en) | 2012-03-02 | 2012-03-02 | Continuous annealing unit and circulating temperature control device for aging section of continuous annealing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210052658.8A CN102534177B (en) | 2012-03-02 | 2012-03-02 | Continuous annealing unit and circulating temperature control device for aging section of continuous annealing unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102534177A true CN102534177A (en) | 2012-07-04 |
| CN102534177B CN102534177B (en) | 2014-02-05 |
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|---|---|---|---|
| CN201210052658.8A Active CN102534177B (en) | 2012-03-02 | 2012-03-02 | Continuous annealing unit and circulating temperature control device for aging section of continuous annealing unit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106048154A (en) * | 2016-07-13 | 2016-10-26 | 浙江晨光电缆股份有限公司 | Copper material annealing furnace |
| CN106766942A (en) * | 2016-12-28 | 2017-05-31 | 洛阳八佳电气科技股份有限公司 | A kind of special interior circulation fast cooling device of high temperature furnace and its method |
| CN108384930A (en) * | 2018-04-28 | 2018-08-10 | 东莞市润华铝业有限公司 | A kind of ageing treatment device for radiator aluminium |
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| JPS54114405A (en) * | 1978-02-27 | 1979-09-06 | Sumitomo Metal Ind Ltd | Control of continuous heating furnace |
| JP2005226157A (en) * | 2004-01-14 | 2005-08-25 | Nippon Steel Corp | Method and device for controlling furnace temperature of continuous annealing furnace |
| CN101182593A (en) * | 2007-12-07 | 2008-05-21 | 东北大学 | Gas stove outer circulation cooling method of double chamber atmosphere pressure hardening furnace and cooling system thereof |
| CN201144255Y (en) * | 2007-12-14 | 2008-11-05 | 李传斌 | Circulation controllable wind cooling device for isothermal normalizing furnace |
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2012
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Patent Citations (5)
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| JPS54114405A (en) * | 1978-02-27 | 1979-09-06 | Sumitomo Metal Ind Ltd | Control of continuous heating furnace |
| JP2005226157A (en) * | 2004-01-14 | 2005-08-25 | Nippon Steel Corp | Method and device for controlling furnace temperature of continuous annealing furnace |
| CN101182593A (en) * | 2007-12-07 | 2008-05-21 | 东北大学 | Gas stove outer circulation cooling method of double chamber atmosphere pressure hardening furnace and cooling system thereof |
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Non-Patent Citations (1)
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106048154A (en) * | 2016-07-13 | 2016-10-26 | 浙江晨光电缆股份有限公司 | Copper material annealing furnace |
| CN106766942A (en) * | 2016-12-28 | 2017-05-31 | 洛阳八佳电气科技股份有限公司 | A kind of special interior circulation fast cooling device of high temperature furnace and its method |
| CN106766942B (en) * | 2016-12-28 | 2023-10-03 | 洛阳八佳电气科技股份有限公司 | Special internal circulation rapid cooling device and method for high-temperature furnace |
| CN108384930A (en) * | 2018-04-28 | 2018-08-10 | 东莞市润华铝业有限公司 | A kind of ageing treatment device for radiator aluminium |
| CN108384930B (en) * | 2018-04-28 | 2024-02-23 | 东莞市润华铝业有限公司 | Aging treatment device for radiator aluminum material |
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| CN102534177B (en) | 2014-02-05 |
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