CN103397291A - Device for preventing hot air flow of heat insulation section of galvanized steel coil from rising and using method of device - Google Patents
Device for preventing hot air flow of heat insulation section of galvanized steel coil from rising and using method of device Download PDFInfo
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- CN103397291A CN103397291A CN2013103721229A CN201310372122A CN103397291A CN 103397291 A CN103397291 A CN 103397291A CN 2013103721229 A CN2013103721229 A CN 2013103721229A CN 201310372122 A CN201310372122 A CN 201310372122A CN 103397291 A CN103397291 A CN 103397291A
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- galvanized steel
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Abstract
The invention relates to a device for preventing a hot air flow of the heat insulation section of a galvanized steel coil from rising and a using method of the device. According to the technical scheme, air boxes (4) are symmetrically arranged on the left and the right of the outlet of the heat insulation section (6) of the galvanized steel coil; side plates (1) are fixedly arranged on the front side and the back side of the outlet of the heat insulation section (6) of the galvanized steel coil; the inner walls of the air boxes (4) on the left and the right and the sides plates (1) on the front side and the back side define a closed channel; the lower end of the closed channel is connected with the outlet end of the heat insulation section (6) of the galvanized steel coil in a closed way; 2 to 4 spray nozzles (3) are symmetrically arranged at the inner sides of the two air boxes (4); the mouths of the spray nozzles (3) of the two air boxes (4) are arranged oppositely; the distance l between each spray nozzle (3) and a moving hot galvanized steel coil (2) is 100-200mm; and the distance h between every two spray nozzles (3) is 100- 500mm. Each air box (4) is communicated with an air source through respective air inlet pipelines (5). The device is simple in structure, can effectively prevent the hot air flow of the heat insulation section (6) of the galvanized steel coil from rising, and meets the heat insulation requirement of the heat insulation section (6) of the galvanized steel coil on the basis of not affecting the surface quality of the hot galvanized steel coil.
Description
Technical field
The invention belongs to galvanized steel heat preservation technology field, relate in particular to a kind of device and using method thereof that galvanized steel holding-zone hot gas flow rises that hinder.
Background technology
After strip steel Zn-plating, the induction heater of sensed heating zone is heated rapidly to desired alloying temperature, then enters the holding-zone of alloying furnace.According to the requirement of alloying heating process curve, galvanized steel need be remained for some time in certain temperature range, to complete alloying process.For the compensation heat lost by radiation, in the bottom of galvanized steel holding-zone, be furnished with the resistance radiant tube heater of silicon controlled rectifier stepless control; Sealing baffle is also installed in ingress at the galvanized steel holding-zone, to reduce freezing air, enters holding-zone; In the exit of zinc-plated holding-zone, be provided with the turnover plate type sealing equipment, with the hot gas flow that limits holding-zone, enter cooling section.
The actual motion effect shows, the turnover plate type sealing equipment that zinc-plated holding-zone exit arranges, can not limit the air capacity of aspirating because of chimneyeffect effectively, can not make furnace pressure keep stable.
Summary of the invention
The present invention is intended to overcome existing technical problem, purpose is to provide a kind of device and using method thereof with hindering the rising of galvanized steel holding-zone hot gas flow simple in structure, the hot gas flow that this device can hinder the galvanized steel holding-zone effectively rises, and on the basis that does not affect the hot-dip galvanized steel strip surface quality, realizes the insulation requirement of galvanized steel holding-zone.Hinder the device that galvanized steel holding-zone hot gas flow rises
For achieving the above object, the technical solution used in the present invention is: the device that described obstruction galvanized steel holding-zone hot gas flow rises is comprised of bellows, nozzle and side plate.The left and right sides in galvanized steel holding-zone exit is equipped with bellows symmetrically, the distance between two bellows inboards
LBe 400 ~ 800mm, side plate fixedly is equipped with in the both sides, front and back in galvanized steel holding-zone exit, and the bellows inwall of the left and right sides and the side plate of both sides, front and back surround closed channel, and the lower end of this closed channel is connected with the exit end sealing of galvanized steel holding-zone.
The inboard of two bellows is provided with 2 ~ 4 nozzles symmetrically, and each bellows communicates with the nozzle that is provided with separately, and the spout of the nozzle of two bellows is installed in opposite directions; Distance between the hot-dip galvanized steel strip of nozzle and motion
lBe 100 ~ 200mm, the distance between nozzle
hBe 100 ~ 500mm.
Each bellows communicates with source of the gas by intake ducting separately.
The structure of described two bellows is identical with shape, highly
HBe 1000 ~ 3000mm.
The shape of described nozzle is identical, and the width of nozzle is identical with the width of bellows, and nozzle and horizontal setting angle are-10
0~+10
0The spout of nozzle is gap-shaped, and the spout height of nozzle is 10 ~ 30mm.
The side plate of both sides, described front and back is fixed on the front and back casing of two bellows accordingly, and the height of side plate is 0.5m ~ 3m.
The using method of described obstruction galvanized steel holding-zone hot gas flow riser is: the gas of intake ducting is air, and gaseous tension is 0.2 ~ 0.3MPa; The gas efflux velocity of jet exit is 20 ~ 60m/s.
Owing to adopting technique scheme, the present invention is equipped with bellows symmetrically in the left and right sides in galvanized steel holding-zone exit, the side plate of both sides before and after being fixed with accordingly on the front and back casing of two bellows, each bellows communicates with source of the gas by intake ducting separately.The inboard of each bellows is provided with nozzle symmetrically, the spout of nozzle is installed in opposite directions, be that the nozzle that both sides are provided with points to the hot-dip galvanized steel strip that moves, the side plate that the hot-dip galvanized steel strip of motion is enclosed in by the bellows inwall of the left and right sides and both sides, front and back is surrounded between closed channel, and is simple in structure.
Gas in bellows is by the hot-dip galvanized steel strip of nozzle directive motion, using Gas Jet as the medium that hinders the hot gas flow rising, make Gas Jet between the hot-dip galvanized steel strip of nozzle and motion, form gas curtain together, the hot gas flow that has effectively hindered the galvanized steel holding-zone rises.This device has realized that to moving hot-dip galvanized steel strip contactless type ground hinders hot gas flow and rises, and is not affecting on alloyed zinc hot dip galvanized basis with steel production technique and strip surface quality, has realized the insulation requirement of galvanized steel holding-zone.
Therefore, the present invention is not only simple in structure, and can effectively hinder the hot gas flow rising of galvanized steel holding-zone, on the basis that does not affect the hot-dip galvanized steel strip surface quality, has realized the insulation requirement of galvanized steel holding-zone.
The accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention;
Fig. 2 is the schematic top plan view of Fig. 1.
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments, is not the restriction to its protection domain.
The schematic diagram of Figure of description for simplifying, only illustrate basic structure of the present invention in a schematic way, therefore, only shows the formation relevant with the present invention.
Embodiment 1
A kind of device and using method thereof that hinders the rising of galvanized steel holding-zone hot gas flow.As depicted in figs. 1 and 2, this device is comprised of bellows 4, nozzle 3 and side plate 1 described obstruction galvanized steel holding-zone hot gas flow riser.The left and right sides in galvanized steel holding-zone 6 exits is equipped with the distance between 4, two bellows 4 inboards of bellows symmetrically
LBe 600 ~ 800mm, side plate 1 fixedly is equipped with in the both sides, front and back in galvanized steel holding-zone 6 exits, and bellows 4 inwalls of the left and right sides and the side plate 1 of both sides, front and back surround closed channel, and the lower end of this closed channel is connected with the exit end of galvanized steel holding-zone 6.
The inboard of two bellows 4 is provided with 3 nozzles 3 symmetrically, and each bellows 4 communicates with the nozzle 3 that is provided with separately, and the spout of the nozzle 3 of two bellows 4 is installed in opposite directions; The distance that the hot-dip galvanized steel strip of nozzle 3 and motion is 2
lBe 100 ~ 200mm, the distance that nozzle is 3
hBe 200 ~ 400mm.
Each bellows 4 communicates with source of the gas by intake ducting 5 separately.
The structure of described two bellows 4 is identical with shape, highly
HBe 1500 ~ 2500mm.
The shape of described nozzle 3 is identical, and the width of nozzle 3 is identical with the width of bellows 4, and nozzle 3 is-10 with horizontal setting angle
0~+10
0The spout of nozzle 3 is gap-shaped, and the spout height of nozzle 3 is 10 ~ 30mm.
The side plate 1 of both sides, described front and back is fixed on the front and back casing of two bellows 4 accordingly, and the height of side plate 1 is 0.5m ~ 3m.
The using method of described obstruction galvanized steel holding-zone hot gas flow riser is: the gas of intake ducting 5 is air, and gaseous tension is 0.2 ~ 0.3MPa; The gas efflux velocity of nozzle 3 outlets is 30 ~ 50m/s.
Embodiment 2
A kind of device and using method thereof that hinders the rising of galvanized steel holding-zone hot gas flow.Except following technical parameter, all the other are with embodiment 1.
Distance between two bellows 4 inboards
LBe 500 ~ 700mm;
The inboard of two bellows 4 is provided with 4 nozzles 3 symmetrically;
The distance that nozzle is 3
hBe 300 ~ 500mm;
Two bellows 4 height
HBe 2000 ~ 3000mm;
The gas efflux velocity of nozzle 3 outlets is 20 ~ 40m/s.
Embodiment 3
A kind of device and using method thereof that hinders the rising of galvanized steel holding-zone hot gas flow.Except following technical parameter, all the other are with embodiment 1.
Distance between two bellows 4 inboards
LBe 400 ~ 600mm;
The inboard of two bellows 4 is provided with 2 nozzles 3 symmetrically;
The distance that nozzle is 3
hBe 100 ~ 300mm;
Two bellows 4 height
HBe 1000 ~ 2000mm;
The gas efflux velocity of nozzle 3 outlets is 40 ~ 60m/s.
Side plate 1 before and after this embodiment is equipped with symmetrically in the left and right sides in galvanized steel holding-zone exit on the front and back casing of 4, two bellows 4 of bellows and is fixed with accordingly, each bellows 4 communicates with source of the gas by intake ducting 5 separately.The inboard of each bellows 4 is provided with nozzle 3 symmetrically, the spout of nozzle 3 is installed in opposite directions, be that the nozzle 3 that both sides are provided with points to the hot-dip galvanized steel strip 2 that moves, the hot-dip galvanized steel strip 2 of motion is enclosed in by bellows 4 inwalls of the left and right sides and the side plate 1 of both sides, front and back and is surrounded between closed channel.
Gas in bellows 4 is by the hot-dip galvanized steel strip 2 of nozzle 3 directive motions, using Gas Jet as the medium that hinders the hot gas flow rising, make Gas Jet form gas curtain together between the hot-dip galvanized steel strip 2 of nozzle 3 and motion, the hot gas flow that has effectively hindered galvanized steel holding-zone 6 rises.This device has realized that to moving hot-dip galvanized steel strip 2 contactless type ground hinders hot gas flow and rises, and not affecting on alloyed zinc hot dip galvanized basis with steel 2 production technique and strip surface quality, has realized the insulation requirement of galvanized steel holding-zone 6.
Therefore, this embodiment is planned simple in structure, and can effectively hinder the hot gas flow rising of galvanized steel holding-zone 6, on the basis that does not affect the hot-dip galvanized steel strip surface quality, has realized the insulation requirement of galvanized steel holding-zone 6.
Claims (5)
1. one kind is hindered galvanized steel holding-zone hot gas flow riser, it is characterized in that described device is comprised of bellows (4), nozzle (3) and side plate (1); The left and right sides in galvanized steel holding-zone (6) exit is equipped with bellows (4) symmetrically, the distance between two bellows (4) inboard
LBe 400 ~ 800mm, side plate (1) fixedly is equipped with in the both sides, front and back in galvanized steel holding-zone (6) exit, the side plate (1) of the bellows of the left and right sides (4) inwall and both sides, front and back surrounds closed channel, and the lower end of this closed channel is connected with the exit end sealing of galvanized steel holding-zone (6);
The inboard of two bellows (4) is provided with 2 ~ 4 nozzles (3) symmetrically, and each bellows (4) communicate with the nozzle that is provided with separately (3), and the spout of the nozzle (3) of two bellows (4) is installed in opposite directions; Distance between the hot-dip galvanized steel strip (2) of nozzle (3) and motion
lBe 100 ~ 200mm, the distance between nozzle (3)
hBe 100 ~ 500mm;
Each bellows (4) communicate with source of the gas by intake ducting (5) separately.
2. obstruction galvanized steel holding-zone hot gas flow riser according to claim 1, is characterized in that the structure of described two bellows (4) is identical with shape, highly
HBe 1000 ~ 3000mm.
3. obstruction galvanized steel holding-zone hot gas flow riser according to claim 1, the shape that it is characterized in that described nozzle (3) is identical, the width of nozzle (3) is identical with the width of bellows (4), and nozzle (3) is-10 with horizontal setting angle
0~+10
0The spout of nozzle (3) is gap-shaped, and the spout height of nozzle (3) is 10 ~ 30mm.
4. obstruction galvanized steel holding-zone hot gas flow riser according to claim 1, the side plate (1) that it is characterized in that both sides, described front and back is fixed on the front and back casing of two bellows (4) accordingly, and the height of side plate (1) is 0.5m ~ 3m.
5. the using method of obstruction galvanized steel holding-zone hot gas flow riser as claimed in claim 1, is characterized in that the gas of the intake ducting (5) of described device is air, and gaseous tension is 0.2 ~ 0.3MPa; The gas efflux velocity of nozzle (3) outlet is 20 ~ 60m/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310372122.9A CN103397291B (en) | 2013-08-23 | 2013-08-23 | Device for preventing hot air flow of heat insulation section of galvanized steel coil from rising and using method of device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310372122.9A CN103397291B (en) | 2013-08-23 | 2013-08-23 | Device for preventing hot air flow of heat insulation section of galvanized steel coil from rising and using method of device |
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| CN103397291A true CN103397291A (en) | 2013-11-20 |
| CN103397291B CN103397291B (en) | 2015-04-29 |
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| CN201310372122.9A Expired - Fee Related CN103397291B (en) | 2013-08-23 | 2013-08-23 | Device for preventing hot air flow of heat insulation section of galvanized steel coil from rising and using method of device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106957950A (en) * | 2016-01-08 | 2017-07-18 | 宝山钢铁股份有限公司 | Hot-dip galvanized alloy soaking pit and strip hot-dip galvanizing system |
| CN107604297A (en) * | 2017-10-26 | 2018-01-19 | 武汉科技大学 | Wall-jets sealing stable-pressure device and its application method in a kind of galvanized steel alloying process |
Citations (4)
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| EP0864519A1 (en) * | 1997-03-12 | 1998-09-16 | Ingenieurgemeinschaft WSP Prof. Dr.-Ing. C.Kramer Prof. H.J. Gerhardt, M.Sc. | Apparatus to guide webs in a floating manner |
| CN2786140Y (en) * | 2005-03-31 | 2006-06-07 | 宝山钢铁股份有限公司 | High-speed air jetting and laminar flow cooling device for continuous annealing of strip steel |
| CN101522936A (en) * | 2006-10-13 | 2009-09-02 | 新日本制铁株式会社 | Apparatus and process for producing steel sheet plated by hot dipping with alloyed zinc |
| CN201915125U (en) * | 2010-12-21 | 2011-08-03 | 哈尔滨松江电炉厂有限责任公司 | Cooling bellows adopting circulating jet of multiple layers of air pipes for galvanizing annealing furnace |
-
2013
- 2013-08-23 CN CN201310372122.9A patent/CN103397291B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0864519A1 (en) * | 1997-03-12 | 1998-09-16 | Ingenieurgemeinschaft WSP Prof. Dr.-Ing. C.Kramer Prof. H.J. Gerhardt, M.Sc. | Apparatus to guide webs in a floating manner |
| CN2786140Y (en) * | 2005-03-31 | 2006-06-07 | 宝山钢铁股份有限公司 | High-speed air jetting and laminar flow cooling device for continuous annealing of strip steel |
| CN101522936A (en) * | 2006-10-13 | 2009-09-02 | 新日本制铁株式会社 | Apparatus and process for producing steel sheet plated by hot dipping with alloyed zinc |
| CN201915125U (en) * | 2010-12-21 | 2011-08-03 | 哈尔滨松江电炉厂有限责任公司 | Cooling bellows adopting circulating jet of multiple layers of air pipes for galvanizing annealing furnace |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106957950A (en) * | 2016-01-08 | 2017-07-18 | 宝山钢铁股份有限公司 | Hot-dip galvanized alloy soaking pit and strip hot-dip galvanizing system |
| CN107604297A (en) * | 2017-10-26 | 2018-01-19 | 武汉科技大学 | Wall-jets sealing stable-pressure device and its application method in a kind of galvanized steel alloying process |
| CN107604297B (en) * | 2017-10-26 | 2023-08-25 | 武汉科技大学 | Wall-attached jet flow sealing pressure stabilizing device in galvanized strip steel alloying process and use method thereof |
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Granted publication date: 20150429 Termination date: 20160823 |