CN205024290U - Continuous annealing furnace overaging section belted steel cooling device - Google Patents
Continuous annealing furnace overaging section belted steel cooling device Download PDFInfo
- Publication number
- CN205024290U CN205024290U CN201520618732.7U CN201520618732U CN205024290U CN 205024290 U CN205024290 U CN 205024290U CN 201520618732 U CN201520618732 U CN 201520618732U CN 205024290 U CN205024290 U CN 205024290U
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- overaging section
- furnace chamber
- belted steel
- steel
- continuous annealing
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- Control Of Heat Treatment Processes (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
The utility model belongs to belted steel preparation field especially relates to a continuous annealing furnace overaging section belted steel cooling device. The device sets up in the oven chamber of overaging section, has seted up the gas outlet on the oven chamber, through the pipe connection on a heat exchanger, connect a circulating fan through the heat exchanger gas outlet on, circulating fan's exit linkage is at the air inlet of oven chamber, circulating fan is connected with PLC for control circulating fan's rotatory size. The utility model discloses an increasing cooling system in the overaging section, realizing the accurate control of stove district and belted steel temperature, the furnace atmosphere is more stable, reduces the stove roller and the belted steel difference in temperature, makes the belted steel operation more stable.
Description
Technical field
The utility model belongs to band steel preparation field, particularly relates to a kind of continuous annealing furnace overaging section strip steel refrigerating unit.
Background technology
Along with safety and environmental protection are to the requirement of automobile, high strength, lightweight steel have become the first-selection of automaker.The demand of high-strength vehicle steel is increasing.In the ultralight car that automotive light weight technology project (ULSAB-AVC) proposes, the consumption of advanced high-strength steel reaches 82%, and wherein dual phase steel accounts for 74%.Dual phase steel is mainly used in low side vehicle key position and middle-to-high end car key position and panel, and along with the development trend of automotive light weight technology, dual phase steel range of application in the car can be increasing, and usage quantity is more and more higher.
Change annealing curve to LC (soft steel) series from DP (dual phase steel) series, cold wooden dipper song likely occurs, because be different in the temperature of the inlet set of OAS (overaging section).On the other hand, annealing curve is changed to DP (dual phase steel) mode from LC (soft steel), the appearance of strip running deviation may be had, therefore, the transition and linkage between steel grade effectively can be controlled at overaging section installation refrigerating unit, meanwhile, effectively according to the steel grade that band steel thermal cycling curve needs aging temp to reduce to alloying element steel etc. such as DP (dual phase steel) and TRIP (phase change induction plasticity steel), effective temperature control can be carried out.
When some steel grade below 350 DEG C of production technique temperature requirement, because furnace chamber provides the cooling system be made up of shielding gas, heat exchanger and recirculation blower, make to be with steel to be 250 DEG C in the temperature of outlet.The furnace chamber cooling system of this design can be cooled to 280 DEG C band steel from 370 DEG C in 30 minutes, reduced belt steel temperature gradually at the entrance of overaging section simultaneously.
At present, cold-rolling continuous annealing unit overaging section adopts Electric heating to make band steel by certain overaging temperature usually, the overaging time needed for maintenance, but when producing the steel grades such as DP (dual phase steel) and TRIP (phase change induction plasticity steel), can not ensure to produce at relatively low overaging temperature, be unfavorable for improving the quality of products.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of production technique optimizing the steel grades such as DP and TRIP, makes its product performance obtain the continuous annealing furnace overaging section strip steel refrigerating unit of suitable lifting.
The utility model realizes like this, a kind of continuous annealing furnace overaging section strip steel refrigerating unit, this device is arranged in the furnace chamber of overaging section, furnace chamber offers air outlet, be connected on an interchanger by pipeline, connect on a recirculation blower by interchanger pneumatic outlet, the outlet of recirculation blower is connected to the inlet mouth of furnace chamber, described recirculation blower is connected with PLC, for the rotation size of controlled circulation blower fan.
Further, be included on furnace chamber and arrange the actual temperature of radiation pyrometer for detection zone steel, in furnace chamber, arrange thermopair for measuring the temperature in furnace chamber, the output terminal of described radiation pyrometer and thermopair is connected on PLC.
The utility model compared with prior art, beneficial effect is: the utility model is by increasing cooling system in overaging section, and realize the accurate control of stove district and belt steel temperature, furnace atmosphere is more stable, reduce furnace roller and the band steel temperature difference, band steel is run more stable.This device is made up of nitrogen hydrogen shielding gas, heat exchanger and recirculation blower.Optimize the production technique of the steel grade such as DP (dual phase steel) and TRIP (phase change induction plasticity steel), make its product performance obtain suitable lifting.
Accompanying drawing explanation
Fig. 1 is the device structure schematic diagram that the utility model embodiment provides.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
See Fig. 1, a kind of continuous annealing furnace overaging section strip steel refrigerating unit, this device is arranged in the furnace chamber 1 of overaging section, all arranges one, furnace chamber 1 offers air outlet in three furnace chambers 1, be connected on an interchanger 5 by pipeline 4, connected on a recirculation blower 6 by interchanger 5 pneumatic outlet, interchanger is connected with water coolant 8, the outlet of recirculation blower 6 is connected to the inlet mouth of furnace chamber 1, described recirculation blower 6 is connected with PLC7, for the rotation size of controlled circulation blower fan 6.
Furnace chamber 1 arranges the actual temperature of radiation pyrometer 2 for detection zone steel, and in furnace chamber 1, arrange thermopair 3 for measuring the temperature in furnace chamber 1, the output terminal of described radiation pyrometer 2 and thermopair 3 is connected on PLC7.
According to band steel annealing curve, first temperature setting is carried out to overaging furnace chamber, recycling radiation pyrometer measures band steel actual temperature, and thermopair carries out temperature measuring to furnace chamber, controlled recirculation blower power by the control of thermopair value of feedback and PID in furnace chamber.NHX (protection of nitrogen hydrogen) gas enters circulating line and cools at interchanger, and the heat exchange principle of interchanger carries out heat exchange by water coolant and NHX (the nitrogen hydrogen is protected) gas of heat again to throw overaging furnace chamber into ensure that furnace pressure is stablized by following bad blower fan.
Thermopair is had in overaging furnace chamber; according to the temperature that thermopair records; entering into mathematical model, to carry out calculating be exactly that so-called PID controls, and acquired results fed back to and recirculation blower carries out variable frequency adjustment controls to be the flow increasing or reduce NHX (protection of nitrogen hydrogen) gas.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (2)
1. a continuous annealing furnace overaging section strip steel refrigerating unit, it is characterized in that, this device is arranged in the furnace chamber of overaging section, furnace chamber offers air outlet, be connected on an interchanger by pipeline, connect on a recirculation blower by interchanger pneumatic outlet, the outlet of recirculation blower is connected to the inlet mouth of furnace chamber, described recirculation blower is connected with PLC, for the rotation size of controlled circulation blower fan.
2. continuous annealing furnace overaging section strip steel refrigerating unit as claimed in claim 1, it is characterized in that, furnace chamber arranges the actual temperature of radiation pyrometer for detection zone steel, in furnace chamber, arrange thermopair for measuring the temperature in furnace chamber, the output terminal of described radiation pyrometer and thermopair is connected on PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520618732.7U CN205024290U (en) | 2015-08-18 | 2015-08-18 | Continuous annealing furnace overaging section belted steel cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520618732.7U CN205024290U (en) | 2015-08-18 | 2015-08-18 | Continuous annealing furnace overaging section belted steel cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205024290U true CN205024290U (en) | 2016-02-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520618732.7U Expired - Fee Related CN205024290U (en) | 2015-08-18 | 2015-08-18 | Continuous annealing furnace overaging section belted steel cooling device |
Country Status (1)
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| CN (1) | CN205024290U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107699663A (en) * | 2017-10-23 | 2018-02-16 | 铜陵市业永兴工贸有限责任公司 | A kind of copper wire annealing heat abstractor |
| CN109116891A (en) * | 2018-08-01 | 2019-01-01 | 首钢智新迁安电磁材料有限公司 | A kind of control method of heat-treatment furnace strip Slow cooling |
| CN112129914A (en) * | 2019-06-24 | 2020-12-25 | 上海宝信软件股份有限公司 | Rapid cooling device of strip steel heat treatment process simulation experiment device and working method |
| CN114150141A (en) * | 2021-11-04 | 2022-03-08 | 本钢板材股份有限公司 | Method for controlling furnace roller convexity in overaging section |
-
2015
- 2015-08-18 CN CN201520618732.7U patent/CN205024290U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107699663A (en) * | 2017-10-23 | 2018-02-16 | 铜陵市业永兴工贸有限责任公司 | A kind of copper wire annealing heat abstractor |
| CN109116891A (en) * | 2018-08-01 | 2019-01-01 | 首钢智新迁安电磁材料有限公司 | A kind of control method of heat-treatment furnace strip Slow cooling |
| CN109116891B (en) * | 2018-08-01 | 2021-04-09 | 首钢智新迁安电磁材料有限公司 | Control method for slow cooling of strip steel of heat treatment furnace |
| CN112129914A (en) * | 2019-06-24 | 2020-12-25 | 上海宝信软件股份有限公司 | Rapid cooling device of strip steel heat treatment process simulation experiment device and working method |
| CN114150141A (en) * | 2021-11-04 | 2022-03-08 | 本钢板材股份有限公司 | Method for controlling furnace roller convexity in overaging section |
| CN114150141B (en) * | 2021-11-04 | 2023-11-17 | 本钢板材股份有限公司 | Control method for convexity of furnace roller in overaging section |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160210 Termination date: 20160818 |
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| CF01 | Termination of patent right due to non-payment of annual fee |