CN200988854Y - Strip steel horizontal continuous annealing furnace inlet seal device - Google Patents
Strip steel horizontal continuous annealing furnace inlet seal device Download PDFInfo
- Publication number
- CN200988854Y CN200988854Y CN 200620099745 CN200620099745U CN200988854Y CN 200988854 Y CN200988854 Y CN 200988854Y CN 200620099745 CN200620099745 CN 200620099745 CN 200620099745 U CN200620099745 U CN 200620099745U CN 200988854 Y CN200988854 Y CN 200988854Y
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- gate
- horizontal continuous
- inlet seal
- seal device
- band steel
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- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
The utility model relates to an inlet sealing device of cold rolled steel strip horizontal continuous annealing oven of metallurgical industry, which is formed by a double layer sealing mechanism arranged at the inlet of an annealing oven; the first layer is an upper turning plate and a lower turning plate, which are arranged at the oven inlet, and the tail ends of the two plate turnovers are in the shape of greater-than sign with each other, and prop to a band steel surface, and the head ends are connected with the upper and lower casing bodies actively; the second layer is a gate mechanism and a supporting oven roller, which are arranged at the tail ends of the plate turnovers; the gate mechanism is composed of a gate frame and a lift gate, and the gate and the supporting oven roller are arranged on the upper and lower relative position of the steel band; the utility model has excellent sealing performance, because a double layer sealing mechanism is arranged, and the consumption of the protective gas as N2+H2 in the oven can be reduced, and the structure is simple and practical, and the manufacturing cost is low, and is convenient in change and maintenance.
Description
(1) technical field: the utility model relates to a kind of heat treatment furnace, is specifically related to be used for metallurgical industry cold rolled strip Horizontal Continuous Furnace inlet seal device.
(2) background technology: continuous strip annealing furnace is mainly used in the continuous annealing of band steel, the type of furnace generally is divided into horizontal and vertical, horizontal chamber oven is a tunnel structure, and by dragging of roller, the band steel is finished annealing process procedures such as heating, equal thermal reduction and cooling continuously in stove.Not oxidized under furnace high-temperature for guaranteeing the band steel, the surface that keeps its light is connected with N in stove
2+ H
2Shielding gas comes furnace atmosphere and isolated from atmosphere, thus, tightness system must be set to reduce N at stove band steel inlet
2+ H
2Shielding gas excessive.
Existing inlet seal device is the double-roll type sealing, promptly the upper-lower position at the band steel is provided with the pair of metal roll-in at belt steel surface, the speed of roller turn is identical with strip speed, the metal slide block is set to keep the minimum clearance of body of heater and roll surface between roller and body of heater.But there is following problem in this structure: (1) device structure complexity, and manufacture difficulty is big, the cost height; (2) equipment failure is many, and maintenance is big; (3) sealing effectiveness is poor, causes the shielding gas consumption big.
(3) summary of the invention: the purpose of this utility model just provides a kind of simple in structure, good sealing effect, band steel Horizontal Continuous Furnace inlet seal device that maintenance cost is low.
Band steel Horizontal Continuous Furnace inlet seal device of the present utility model, constitute by the double-layer seal mechanism that is arranged on the annealing furnace ingress, it is characterized in that: the first layer is the turnover panel up and down that is provided with at nearly fire door place, two turnover panel ends are " greater-than sign " shape mutually, promptly "＞" type is against belt steel surface, and head end and last lower housing flexibly connect; The second layer is the gate mechanism that is provided with at the turnover panel rear portion and supports furnace roller; Described gate mechanism comprises gate frame and liftable gate, and described gate is located at the relative position up and down of being with steel with support furnace roller branch.
Described turnover panel wraps up ceramic fiber blanket and no wire-core ceramic fiber cloth outward respectively.
Lower space at described furnace roller is filled ceramic fiber blanket.
Described gate is not had by multilayer that steel wire fibre cloth is folding to form, and adopts the zircon sand sealing between gate frame and the gate.
Be provided with a water-cooled frame in band steel ingress.
The utility model compared with prior art has following advantage:
(1) have the double-layer sealing structure of double-safety, good sealing effect can significantly reduce the consumption of annealing furnace protective gas body.
(2) simple and practical, cheap.
(3) be convenient to change maintenance, greatly reduce maintenance cost.
(4) description of drawings:
Fig. 1 is a structural representation of the present utility model.
(5) embodiment:
Referring to Fig. 1, inlet 2 places at annealing furnace body of heater 1 are provided with two-layer sealing mechanism, the first layer is the turnover panel up and down 3 near the body of heater ingress, two turnover panel ends are the surface that "＞" type is against band steel 4 mutually, for preventing to scratch the band steel, the outer parcel earlier of turnover panel ceramic fiber blanket, the no wire-core ceramic fiber cloth of parcel again.The turnover panel head end flexibly connects with last lower housing 5 respectively, rotate when conveniently wearing band turnover panel allow thread a needle by.
The second layer is the gate mechanism after next-door neighbour's panel turnover mechanism and supports furnace roller 6; But gate mechanism comprises gate frame 7 and the lift gate of being controlled by lifting mechanism 89; Zircon sand 10 is adopted in the sealing of gate frame and gate.Gate 9 is not have with multilayer that steel wire fibre cloth is folding to form; Furnace roller is arranged on the bottom of band steel 4, and fill with ceramic fiber blanket 11 in the space of furnace roller bottom; Furnace roller and gate branch are located at the relative position up and down of band steel; During work, gate descends, and is pressed in belt steel surface, and the gate sand sealing knife inserts in the zircon sand, and furnace atmosphere and isolated from atmosphere are come, wear when being with, lift gate allow thread a needle by.
Owing to be provided with above-mentioned double-layer seal mechanism, the N in the stove
2+ H
2Shielding gas consumption reduces greatly.For preventing that a small amount of high-temperature gas from overflowing afterfire, in band steel ingress a water-cooled frame 12 is set specially also, make the high-temperature gas cooling, perfectly safe to guarantee.
During installation, generally above-mentioned double-layer seal mechanism is arranged on the support 13 of fire door,, has all obtained the ideal effect by on probation on the horizontal chamber oven of 150,000 tons of band steel continuous zinc coating units and 70,000 tons of silicon steel decarburizing annealing units.
Claims (5)
1. be with steel Horizontal Continuous Furnace inlet seal device, constitute by the double-layer seal mechanism that is arranged on the annealing furnace ingress, it is characterized in that: the first layer is the turnover panel up and down that is provided with at nearly fire door place, two turnover panel ends are " greater-than sign " shape mutually and are against belt steel surface, and head end flexibly connects with last lower housing respectively; The second layer is the gate mechanism that is provided with at the turnover panel rear portion and supports furnace roller; Described gate mechanism comprises gate frame and liftable gate, and described gate is located at the relative position up and down of being with steel with support furnace roller branch.
2. band steel Horizontal Continuous Furnace inlet seal device according to claim 1 is characterized in that: described turnover panel wraps up ceramic fiber blanket and no wire-core ceramic fiber cloth outward respectively.
3. band steel Horizontal Continuous Furnace inlet seal device according to claim 1 is characterized in that: the lower space at described furnace roller is filled ceramic fiber blanket.
4. band steel Horizontal Continuous Furnace inlet seal device according to claim 1 is characterized in that: described gate is not had by multilayer that steel wire fibre cloth is folding to form, and adopts the zircon sand sealing between gate frame and the gate.
5. according to claim 1 or 2 or 3 or 4 described band steel Horizontal Continuous Furnace inlet seal devices, it is characterized in that: be provided with a water-cooled frame in band steel ingress.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620099745 CN200988854Y (en) | 2006-10-31 | 2006-10-31 | Strip steel horizontal continuous annealing furnace inlet seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620099745 CN200988854Y (en) | 2006-10-31 | 2006-10-31 | Strip steel horizontal continuous annealing furnace inlet seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200988854Y true CN200988854Y (en) | 2007-12-12 |
Family
ID=38939894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620099745 Expired - Fee Related CN200988854Y (en) | 2006-10-31 | 2006-10-31 | Strip steel horizontal continuous annealing furnace inlet seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200988854Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101525684B (en) * | 2009-03-09 | 2011-09-14 | 重庆赛迪工业炉有限公司 | Inlet sealing device of annealing furnace with stainless steel mirror face |
| CN103557337A (en) * | 2013-10-31 | 2014-02-05 | 中冶南方(武汉)威仕工业炉有限公司 | Quick cut-off flap valve device of muffle bright annealing furnace |
| CN104263895A (en) * | 2014-09-22 | 2015-01-07 | 辽宁科技大学 | Dynamic inlet/outlet sealing device for heat treatment furnace in protective atmosphere |
| CN113106209A (en) * | 2021-03-30 | 2021-07-13 | 天津太钢天管不锈钢有限公司 | Horizontal furnace heat insulation door for strip steel annealing |
-
2006
- 2006-10-31 CN CN 200620099745 patent/CN200988854Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101525684B (en) * | 2009-03-09 | 2011-09-14 | 重庆赛迪工业炉有限公司 | Inlet sealing device of annealing furnace with stainless steel mirror face |
| CN103557337A (en) * | 2013-10-31 | 2014-02-05 | 中冶南方(武汉)威仕工业炉有限公司 | Quick cut-off flap valve device of muffle bright annealing furnace |
| CN104263895A (en) * | 2014-09-22 | 2015-01-07 | 辽宁科技大学 | Dynamic inlet/outlet sealing device for heat treatment furnace in protective atmosphere |
| CN104263895B (en) * | 2014-09-22 | 2016-04-13 | 辽宁科技大学 | Dynamic sealing means imported and exported by a kind of N2shielded heat-treatment stove |
| CN113106209A (en) * | 2021-03-30 | 2021-07-13 | 天津太钢天管不锈钢有限公司 | Horizontal furnace heat insulation door for strip steel annealing |
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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: 20071212 Termination date: 20141031 |
|
| EXPY | Termination of patent right or utility model |