CN202989241U - Device for inhibiting thermal crown change of furnace rollers - Google Patents
Device for inhibiting thermal crown change of furnace rollers Download PDFInfo
- Publication number
- CN202989241U CN202989241U CN 201220691974 CN201220691974U CN202989241U CN 202989241 U CN202989241 U CN 202989241U CN 201220691974 CN201220691974 CN 201220691974 CN 201220691974 U CN201220691974 U CN 201220691974U CN 202989241 U CN202989241 U CN 202989241U
- Authority
- CN
- China
- Prior art keywords
- furnace
- furnace rollers
- thermal insulation
- rollers
- insulation plates
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
The utility model discloses a device for inhibiting the thermal crown change of furnace rollers. The device comprises first thermal insulation plates and second thermal insulation plates, wherein the first thermal insulation plates are correspondingly arranged below the furnace rollers, the second thermal insulation plates are arranged below gaps between adjacent furnace rollers, sprayer pipes with injection holes are arranged on the first thermal insulation plates, injection holes in the sprayer pipes are correspondingly formed in two ends of the sprayer pipes, the sprayer pipes are communicated with a cooling gas pipeline, and the cooling gas pipeline is connected with a cooler. According to the device, the thermal radiation of the wall of a hearth and hot gas in a furnace to a furnace top roller can be well insulated, especially for the furnace top roller at an inlet of a heating section, the negative crown caused by large expanding quantity of two ends of the furnace rollers and small expanding quantity of the middle sections of the furnace rollers caused by large difference of strip steel temperature and hearth temperature is reduced, the thermal radiation impaction on the low-temperature furnace roller at an inlet section is reduced, and the service life of the furnace rollers is prolonged while positive crown of the furnace rollers and rapid production of strip steel are ensured.
Description
Technical field
The utility model relates to field of metallurgy, particularly a kind of device that suppresses the hot convexity variation of furnace roller.
Background technology
Need the production of fast and stable with the vertical annealing furnace of steel heat-treatment lines unit.The band steel is reciprocal back and forth between furnace top roller and furnace bottom roll in the vertical annealing furnace process furnace, leaves heating zone after reaching heating purpose temperature.At the large-scale vertical stove, be productivity gain, the band steel needs operation fast, and in order to reduce strip running deviation, the low little positive convexity roll shape in high two ends in the middle of heating zone furnace roller roll surface generally is designed to produce centripetal force, makes band steel self correction.For preventing being with the too protruding wooden dipper song that affects of steel rider type, this positive convexity amount is very little.But in the heating zone stove, some furnace top rollers of entrance particularly, the position contact with the strip in the middle of the body of roll due to the also not heating of band steel, this regional temperature at furnace top roller is lower, and with the position that does not contact with steel, the high-temperature furnace gas that is risen and the thermal radiation of burner hearth, furnace top roller two ends roll surface temperature is higher than the intermediate roll surface temperature, cause the two ends swell increment greater than middle roll surface, and the positive convexity of destruction furnace roller roll shape, even cause negative convexity, this impact can destroy the furnace roller type, causes the operation of the fast and stable in stove with steel with the excessive sideslip of steel and then impact.
For reducing the thermal radiation of burner hearth, maximum isolated furnace roller and the impact of the temperature of burner hearth generally adopt thermal baffle and thermoscreen to completely cut off the burner hearth thermal radiation, still DeGrain in the past using.
The utility model content
Technical problem to be solved in the utility model is that providing a kind of for above-mentioned the deficiencies in the prior art can better keep the original convexity of furnace top roller, prevents from reducing after the hot convexity excessive deformation of furnace top roller the device that furnace top roller changes the hot convexity of inhibition furnace roller that affects with the self correction function of steel with the quick operation of steel.
The utility model is to solve the problems of the technologies described above the technical scheme that adopts to be: a kind of device that suppresses the hot convexity variation of furnace roller, it is characterized in that: it comprises the first thermal baffle, the second thermal baffle, described the first thermal baffle correspondence be installed in furnace roller the below, described the second thermal baffle is installed in the below, space of adjacent furnace roller, be provided with the jet pipe of band winding-up mouth on described the first thermal baffle, winding-up mouth correspondence on described jet pipe is arranged on the two ends of jet pipe, described jet pipe is communicated with the cold gas pipeline, and described cold gas pipeline connects water cooler.
By technique scheme, also be provided with conduit, described conduit connects recirculation blower, and for the gas after the collection blowing furnace top roller, described recirculation blower is connected with water cooler.
The obtained beneficial effect of the utility model is: the utility model can be good at the thermal radiation of hot gas to furnace top roller in isolated burner hearth wall and stove, particularly for the furnace top roller of heating zone entrance, the furnace roller two ends expansion quantitative change that reduction produces when differing very big because of belt steel temperature and fire box temperature is large, the little negative convexity that produces of interlude, guaranteeing the positive convexity of furnace roller, when assurance is produced fast with steel, reduce the suffered thermal radiation of entrance low temperature furnace roller and impact, extend the life-span of furnace roller.
Description of drawings
Fig. 1 is layout schematic diagram of the present utility model.
Fig. 2 is structural representation of the present utility model.
In figure: 1, furnace roller, the 2, first thermal baffle, the 3, second thermal baffle, 4, jet pipe, 5, the band steel, 6, mounting bracket, 7, the cold gas pipeline.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
as Fig. 1, shown in 2, a kind of device that suppresses the hot convexity variation of furnace roller, it comprises the first thermal baffle 2, the second thermal baffle 3, described the first thermal baffle 2 correspondences be installed in furnace roller 1 the below, its two ends are fixed on furnace shell by mounting bracket 6, described the second thermal baffle 3 is installed in the below, space of adjacent furnace roller 1, be fixed with the jet pipe 4 of band winding-up mouth on described the first thermal baffle 2, winding-up mouth correspondence on described jet pipe 4 is arranged on the two ends of jet pipe, cooling furnace roller two ends are used for jetting, described jet pipe 4 is communicated with cold gas pipeline 7, described cold gas pipeline 7 access nitrogen hydrogen protection gas gas, described cold air protection gas passage 7 connects water cooler.Described the first thermal baffle 2 and the second thermal baffle 3 all with fibre thermal-insulation material and protection liner plate, can separate the thermal radiation of burner hearth wall and furnace gas, heating burner, radiator tube etc.
In order to save nitrogen hydrogen protection gas; also be provided with conduit on furnace shell; described conduit is connected with recirculation blower; recirculation blower is connected with water cooler; when nitrogen hydrogen protects air-blowing after furnace roller; after conduit is extracted out in the burner hearth with recirculation blower, again in cold gas pipeline 7 blasts jet pipe 4, save nitrogen hydrogen protection gas when so circulation reaches cooling performance again after water cooler is cooling.
Claims (2)
1. one kind is suppressed the device that the hot convexity of furnace roller changes, it is characterized in that: it comprises the first thermal baffle, the second thermal baffle, described the first thermal baffle correspondence be installed in furnace roller the below, described the second thermal baffle is installed in the below, space of adjacent furnace roller, be provided with the jet pipe of band winding-up mouth on described the first thermal baffle, winding-up mouth correspondence on described jet pipe is arranged on the two ends of jet pipe, and described jet pipe is communicated with the cold gas pipeline, and described cold gas pipeline connects water cooler.
2. a kind of device that the hot convexity of furnace roller changes that suppresses according to claim 1, it is characterized in that: also be provided with conduit, described conduit connects recirculation blower, is used for the gas after the collection blowing furnace top roller, and described recirculation blower is connected with water cooler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220691974 CN202989241U (en) | 2012-12-14 | 2012-12-14 | Device for inhibiting thermal crown change of furnace rollers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220691974 CN202989241U (en) | 2012-12-14 | 2012-12-14 | Device for inhibiting thermal crown change of furnace rollers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202989241U true CN202989241U (en) | 2013-06-12 |
Family
ID=48560437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220691974 Expired - Fee Related CN202989241U (en) | 2012-12-14 | 2012-12-14 | Device for inhibiting thermal crown change of furnace rollers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202989241U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104328251A (en) * | 2013-07-22 | 2015-02-04 | 宝钢新日铁汽车板有限公司 | Annealing-furnace thermal-insulation plate apparatus |
| CN108441623A (en) * | 2018-05-30 | 2018-08-24 | 重庆万达薄板有限公司 | A kind of hot-dip galvanized steel strip production stove tail reversal chamber |
| CN109234510A (en) * | 2018-10-31 | 2019-01-18 | 唐山中厚板材有限公司 | A kind of device for avoiding heat-treated steel plate from generating mass defect because of furnace hearth roller salamander |
| CN110234775A (en) * | 2017-02-02 | 2019-09-13 | 杰富意钢铁株式会社 | Continuous annealing furnace |
| CN112813250A (en) * | 2021-01-04 | 2021-05-18 | 宝钢湛江钢铁有限公司 | Water-cooled temperature control device and method for furnace top roller chamber of direct-fired furnace |
| CN112853083A (en) * | 2021-01-04 | 2021-05-28 | 宝钢湛江钢铁有限公司 | Air cooling type temperature control device and method for furnace top roller chamber of direct-fired furnace |
| 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 |
-
2012
- 2012-12-14 CN CN 201220691974 patent/CN202989241U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104328251A (en) * | 2013-07-22 | 2015-02-04 | 宝钢新日铁汽车板有限公司 | Annealing-furnace thermal-insulation plate apparatus |
| CN104328251B (en) * | 2013-07-22 | 2016-08-10 | 宝钢新日铁汽车板有限公司 | A kind of annealing furnace heat insulation board device |
| CN110234775A (en) * | 2017-02-02 | 2019-09-13 | 杰富意钢铁株式会社 | Continuous annealing furnace |
| CN108441623A (en) * | 2018-05-30 | 2018-08-24 | 重庆万达薄板有限公司 | A kind of hot-dip galvanized steel strip production stove tail reversal chamber |
| CN109234510A (en) * | 2018-10-31 | 2019-01-18 | 唐山中厚板材有限公司 | A kind of device for avoiding heat-treated steel plate from generating mass defect because of furnace hearth roller salamander |
| CN112813250A (en) * | 2021-01-04 | 2021-05-18 | 宝钢湛江钢铁有限公司 | Water-cooled temperature control device and method for furnace top roller chamber of direct-fired furnace |
| CN112853083A (en) * | 2021-01-04 | 2021-05-28 | 宝钢湛江钢铁有限公司 | Air cooling type temperature control device and method for furnace top roller chamber of direct-fired furnace |
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202989241U (en) | Device for inhibiting thermal crown change of furnace rollers | |
| CN204162746U (en) | A kind of aluminium continuous annealing line | |
| CN202022846U (en) | Efficient energy-saving gas toughening furnace | |
| CN202040832U (en) | Connecting system of regenerative air preheater air leakage recycling device and dry-type slag removal machine | |
| CN104018010A (en) | Reduction distillation furnace for sponge titanium production | |
| CN203700458U (en) | Reduction distilling furnace for producing titanium sponge by virtue of magnesium reduction method | |
| CN205807377U (en) | Heat accumulation boiler | |
| CN201817532U (en) | Gas heat exchanger in heating furnace of steel rolling system | |
| CN204779667U (en) | Energy -conserving double -deck aluminum alloy spare dissolves ageing heat treatment stove admittedly | |
| CN203719437U (en) | Waste heat recovery device in steel pipe production | |
| CN204097526U (en) | With the roller quenching machine of current blow device | |
| CN203112887U (en) | Multi-roller way steel tube annealing furnace | |
| CN203421981U (en) | Heat exchanger for kiln flue gas waste heat recovery | |
| CN112813250A (en) | Water-cooled temperature control device and method for furnace top roller chamber of direct-fired furnace | |
| CN202954938U (en) | Waste heat recovery device of air-cooled air compressor | |
| CN202913066U (en) | Electrotinning soft melting section non-contact cooling device | |
| CN205556458U (en) | Wide plate calendering annealing kiln | |
| CN104499340A (en) | Thermal insulation wall unit of impregnated paper drying box | |
| CN202002132U (en) | Water cooling type high-temperature furnace smoke pipeline | |
| CN202543276U (en) | Heat storage type burner of steel billet heating furnace | |
| CN104534860A (en) | Efficient insulation box wall of impregnated paper drying box | |
| CN206173472U (en) | PV450 polycrystal ingot furnace | |
| CN104154751A (en) | Thermal energy recycling system for cast stone production | |
| CN220931771U (en) | Environment-friendly exhaust device for industrial electric furnace | |
| CN204058491U (en) | A kind of straight blowing pipe of blast furnace |
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: 20130612 Termination date: 20141214 |
|
| EXPY | Termination of patent right or utility model |