CN202643794U - Sealing device for annealing furnace outlet - Google Patents
Sealing device for annealing furnace outlet Download PDFInfo
- Publication number
- CN202643794U CN202643794U CN 201220116020 CN201220116020U CN202643794U CN 202643794 U CN202643794 U CN 202643794U CN 201220116020 CN201220116020 CN 201220116020 CN 201220116020 U CN201220116020 U CN 201220116020U CN 202643794 U CN202643794 U CN 202643794U
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- annealing furnace
- sealing device
- manhole
- rotating shaft
- furnace outlet
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Abstract
The utility model discloses a sealing device for an annealing furnace outlet. The sealing device for the annealing furnace outlet comprises an air-tight door body, at least two pairs of rotating shafts arranged inside the air-tight door body to form a confined space between the two pairs of the rotating shafts. Each rotating shaft is set to be capable of revolving around an axle centre of the rotating shaft, and two rotating shafts of each pair of the rotating shafts are arranged oppositely. At least four baffles are arranged and are respectively fixedly connected to each rotating shaft. Each baffle is provided with a tail end and a head end, wherein the tail end is respectively fixedly connected to each rotating shaft. A cover plate is installed fixedly on the head end of each baffle, and a groove is arranged on the cover plate. A sealing strip is correspondingly arranged inside the groove, and a platen is arranged fixedly on the sealing strip in a clamped mode. The sealing device for the annealing furnace outlet is capable of separating atmosphere in an annealing furnace and atmosphere in a furnace nose, wherein the annealing furnace and the furnace nose are arranged on two ends of the sealing device for the annealing furnace outlet. The sealing device for the annealing furnace outlet also has the advantages of being well-sealed and easy to maintain.
Description
Technical field
The utility model relates to a kind of metallurgical supplementary unit, relates in particular to a kind of tightness system.
Background technology
Existing galvanizing unit annealing furnace, often the interface in stove Duan Yulu nose section arranges a tightness system, and this device can be closed, and atmosphere exerts an influence to atmosphere in the stove nose in the stove in order to avoid, thereby improves strip quality.In addition, when unit was shut down not shutdown maintenance, the sealing device can also cut off furnace atmosphere and stove outer air, kept the stable of furnace atmosphere, so that quick turn-on resumes production.Fig. 1 has shown the use state of existing tightness system.As shown in Figure 1, be provided with tightness system 2 between an end of annealing furnace 1 and stove nose 3, the other end of stove nose 3 stretches in the zinc liquid of zinc pot 4.The band steel, enters in the zinc pot 4 below the zinc liquid level through tightness system 2 and stove nose 3 from annealing furnace 1, goes out the zinc liquid level through behind the sinking roller, thereby finishes galvanizing process.
In the situation that be with steel, close tightness system and can play on the one hand the effect that cuts off furnace atmosphere and the outer atmosphere of stove, prevent that oxygen from entering into stove interior and cause the strip quality problem; On the other hand, the atmosphere that makes nose contain water vapour and zinc powder can not enter in the stove.In some prior aries, the method that mostly adopts nitrogen hydrogen to purge is cut off in the stove and stove nose atmosphere, but since gas to be disturbed the impact of factor larger, it is limited that it cuts off effect, can not satisfy on-the-spot user demand.
Fig. 2 has shown the structure of existing tightness system.As shown in Figure 2, hermatic door body two ends end face 5,9 is respectively equipped with two joint flanges, in order to be connected with annealing furnace and stove nose.Be provided with two pairs of rotation axiss 8 and two frame seal 7 in the hermatic door body, every pair of rotation axis 8 is and is oppositely arranged, and can relatively rotate around its axle center, and each rotation axis 8 all is connected with a sealing brush 10; Under the driving of cylinder, rotation axis 8 band dynamic seal brushes 10 rotate, thereby realize opening or closing of sealing brush 10.In addition, on the hermatic door body, also be provided with a manhole 6.
Yet there is following defective in the tightness system of this structure:
(1) this tightness system can not prevent effectively that zinc gray from entering in the stove, thereby can cause the mass defect with steel scuffing and roll marks;
When (2) shutting down, behind the lifting stove nose, the oxygen that the sealing device can not be controlled in the stove nose enters in the stove, thereby causes furnace atmosphere unusual, affects normal boot-strap production;
(3) the sealing device adopts the sealing brush configuration with sealing place of band steel, and the sealing brush is flexible structure, and the air-tightness of sealing is lower, exist to leak, and bristle is softer, can not hold the band steel, thereby makes a side that is attached to the hermatic door body with steel, easily scratches the band steel;
(4) between rotation axis and hermatic door body, there is the gap, causes atmosphere to be leaked, thereby cause furnace pressure unstable;
(5) dismounting of sealing device is relatively more difficult, and maintenance difficulties is larger.
Summary of the invention
Goal of the invention of the present utility model provides a kind of annealing furnace outlet sealing device; when the sealing device should and be shut down when annealing furnace moves; intercept the outer atmosphere of stove and furnace atmosphere fully, stable to keep furnace atmosphere, eliminate the disadvantageous effect with steel.
According to the foregoing invention purpose, the utility model proposes a kind of annealing furnace outlet sealing device, it comprises: a hermatic door body; At least two pairs are arranged at the intrinsic rotating shaft of hermatic door to form a seal cavity between two countershafts, and each rotating shaft is set to and can rotates around himself axle center, and two rotating shafts in every countershaft are oppositely arranged; At least four baffle plates, it is fixedly connected with each rotating shaft respectively;
Baffle plate has a tail end and a head end, and its tail end is fixedly connected with respectively with each rotating shaft, and the head end of each baffle plate is fixed with a cover plate, and cover plate is provided with a groove, and a sealed strip correspondence is located in the groove, and a pressing plate fixedly is pressed on the sealed strip.
In the technical program, every countershaft relatively rotates, drive the baffle plate be fixedly connected with it also around the shaft the axle center relatively rotate, thereby the closing or opening of realization tightness system.When tightness system cut out, adjacent two countershafts and baffle plate thereof and hermatic door main body surrounded a seal cavity, to intercept the outer atmosphere of stove and furnace atmosphere.When have in the tightness system band steel by the time, the sealed strip of two corresponding baffle plate head ends can effectively be clamped the band steel, thereby can in the situation that do not scratch and be with steel, guarantee resistance to air loss; In addition, this design can also be held the band steel, prevents its bending under deadweight.
Preferably, in above-mentioned annealing furnace outlet sealing device, also comprise at least two pairs of bolts hole and the corresponding adjusting bolt of being located in each bolt hole, the setting corresponding to each rotating shaft of each adjusting bolt is equipped with a sealing block between the adjusting bolt that each is corresponding and the rotating shaft, an end of sealing block is connected with the tail end of adjusting bolt, the other end of sealing block is pressed in the rotating shaft tightly, thereby prevented the atmosphere leakage, guaranteed that furnace pressure is stable in the stove, and then shortened the time that start is prepared.
Preferably, in above-mentioned annealing furnace outlet sealing device, a side of hermatic door body is provided with a manhole device; Two bolts hole in every a pair of bolt hole are located at respectively on the another side of upper and relative with the manhole device hermatic door body of manhole device.
Preferably, in above-mentioned annealing furnace outlet sealing device, the manhole device comprises a manhole body and a manhole plate that covers on the manhole body, is provided with at least one the first sealing member between manhole plate and the manhole body, thereby prevents the leakage of atmosphere.
Preferably, in above-mentioned annealing furnace outlet sealing device, be provided with at least one the second sealing member between manhole body and the hermatic door body, thereby further prevent the leakage of atmosphere.
In above-mentioned annealing furnace outlet sealing device, offer an intake ducting and a gas exhaust duct on the hermatic door body, its respectively with the intrinsic seal cavity conducting of hermatic door.
In above-mentioned annealing furnace outlet sealing device, also offer an oxygen level sampling line on the hermatic door body, its also with the seal cavity conducting.
Annealing furnace outlet sealing device described in the utility model has the following advantages:
(1) the described tightness system of the technical program has prevented that effectively zinc gray from entering in the stove, thereby has avoided the mass defect with steel scuffing and roll marks;
(2) the described tightness system of the technical program can fully cut off furnace atmosphere and stove outer air, thereby keeps furnace atmosphere stable, is convenient to quick turn-on, resumes production;
(3) the head end baffle plate that is provided with sealed strip can effectively be clamped the band steel, thereby can in the situation that do not scratch and be with steel, guarantee resistance to air loss; In addition, this design can also be held the band steel, prevents its bending under deadweight;
(4) adopt the sealing block sealing between rotating shaft and the hermatic door body, thereby prevented the atmosphere leakage, guarantee that furnace pressure is stable in the stove, and then shortened the time that start is prepared;
(5) the described tightness system of the technical program also has the simple advantage of dismounting, thereby has reduced maintenance cost.
Description of drawings
Fig. 1 is the use view of original annealing furnace outlet sealing device.
Fig. 2 is the structural representation of original annealing furnace outlet sealing device.
Fig. 3 is the structural representation of annealing furnace outlet sealing device described in the utility model under a kind of embodiment.
Fig. 4 is the partial enlarged drawing at A place among Fig. 3.
Fig. 5 is the side-view of annealing furnace outlet sealing device described in the utility model under a kind of embodiment.
Fig. 6 is the schematic diagram of annealing furnace outlet sealing device described in the utility model open mode under a kind of embodiment.
Fig. 7 is the front view of annealing furnace outlet sealing device described in the utility model open mode under a kind of embodiment.
Embodiment
Below in conjunction with Figure of description and specific embodiment annealing furnace outlet sealing device described in the utility model is described in further detail.
Fig. 3 has shown annealing furnace outlet sealing device described in the utility model structure in the present embodiment.Fig. 4 is the partial enlarged drawing at A place among Fig. 3.As shown in Figure 3, Figure 4, the two ends of hermatic door body 11 are connected with the stove nose with annealing furnace respectively by two flanges respectively, are provided with two countershafts 12 in it, and two rotating shafts 12 in every countershaft are oppositely arranged, and are set to and can relatively rotate synchronously in the axle center separately around it.The tail end of four baffle plates 13 is fixedly connected with each rotating shaft 12 respectively, thereby under the drive of each rotating shaft 12, realizes opening and closing of tightness system.The head end of each baffle plate 13 is connected with cover plate 14 bolts, and cover plate 14 is provided with a groove, and sealed strip 15 is located in the groove, and fixedly is pressed on the sealed strip 15 by a pressing plate 16 and is fixed.When have in the tightness system band steel by the time, with steel 26 about the sealed strip 14 on two baffle plates 13 can clamp by band steel 26, thereby can be in the situation that do not scratch and be with steel 26, the resistance to air loss of assurance tightness system; In addition, the baffle plate 13 of being located at steel 26 belows also plays the effect that holds up with steel, thereby effectively prevents from being with steel bending under deadweight.Also be provided with a manhole device on the top of hermatic door body 11, this manhole device comprises manhole body 19, manhole plate 20, the first sealing member 21 and the second sealing member 22.Wherein, manhole plate 20 covers on the manhole body 19; Be provided with the first sealing member 22 between manhole plate 20 and the manhole body 19, be provided with the second sealing member 21 between manhole body 19 and the hermatic door body 11; By the first sealing member 22 and 21 double seals of the second sealing member, thus the resistance to air loss of underwriter's aperture apparatus.Manhole device's design can make things convenient for the staff to enter tightness system to keep in repair, thereby has saved maintenance cost.On hermatic door body 11 and manhole device, also be provided with two pairs of bolts hole and the corresponding adjusting bolt 17 of being located in each bolt hole; In every pair of bolt hole and adjusting bolt, one group of bolt hole and adjusting bolt are located on the manhole device, and another group bolt hole and adjusting bolt are located on the hermatic door body 11; Each adjusting bolt 17 and each rotating shaft 12 corresponding setting are equipped with a sealing block 18 between each corresponding adjusting bolt 17 and the rotating shaft 12; Adjusting bolt 17 can be regulated the elasticity of sealing block 18, thereby sealing block 18 is unclamped or is pressed on tightly in the rotating shaft 12; Sealing block 18 is pressed on tightly can prevents in the rotating shaft 12 that atmosphere from going out from the slot leakage between rotating shaft 12 and the hermatic door body 11, guarantee that furnace pressure is stable in the annealing furnace, and then shortened the time that start is prepared.In the present embodiment, when tightness system cut out, hermatic door body 11, manhole device and two groups of baffle plates 13 can surround a seal cavity, thus atmosphere and the extraneous air at exclusion seal device two ends.In addition, on hermatic door body 11 and manhole device, also offer respectively intake ducting 23 and gas exhaust duct 24, its respectively with hermatic door body 11 in the seal cavity conducting, in order to air inlet and exhaust; In the bottom of hermatic door body 11, a side of intake ducting 23 also is provided with an oxygen level sampling line 25, its also with the seal cavity conducting, in order to the atmosphere in the seal cavity is taken a sample.
Fig. 5 is annealing furnace outlet sealing device described in the utility model side-view in the present embodiment.As shown in Figure 5, cylinder 27 is connected with drive plate 28, and each rotating shaft 12 all is connected with drive plate 28 by a connecting rod 29.In the present embodiment, cylinder 27 drives two countershafts 12 and rotates synchronously by drive plate 28, connecting rod 29, thereby realizes opening or closing tightness system.
Fig. 6, Fig. 7 have shown the described annealing furnace outlet sealing device of utility model open mode in the present embodiment.Such as Fig. 6, shown in Figure 7, baffle plate 13 forwards the position of close hermatic door body or manhole device's inwall to around its rotating shaft, thereby makes tightness system be in open mode.
Be noted that above enumerate only for specific embodiment of the utility model, obviously the utility model is not limited to above embodiment, and many similar variations are arranged thereupon.If those skilled in the art all should belong to protection domain of the present utility model from all distortion that the disclosed content of the utility model directly derives or associates.
Claims (7)
1. annealing furnace outlet sealing device, it comprises: a hermatic door body; At least two pairs are arranged at the intrinsic rotating shaft of hermatic door to form a seal cavity between described two countershafts, and described each rotating shaft is set to and can rotates around himself axle center, and two rotating shafts in described every countershaft are oppositely arranged; At least four baffle plates, it is fixedly connected with each rotating shaft respectively; It is characterized in that:
Described baffle plate has a tail end and a head end, its tail end is fixedly connected with respectively with described each rotating shaft, and the head end of described each baffle plate is fixed with a cover plate, and described cover plate is provided with a groove, one sealed strip correspondence is located in the described groove, and a pressing plate fixedly is pressed on the described sealed strip.
2. annealing furnace outlet sealing device as claimed in claim 1, it is characterized in that, also comprise at least two pairs of bolts hole and the corresponding adjusting bolt of being located in each bolt hole, the setting corresponding to each rotating shaft of described each adjusting bolt, be equipped with a sealing block between the adjusting bolt that each is corresponding and the rotating shaft, one end of described sealing block is connected with the tail end of adjusting bolt, and the other end of sealing block is pressed in the rotating shaft tightly.
3. annealing furnace outlet sealing device as claimed in claim 2 is characterized in that, a side of described hermatic door body is provided with a manhole device; Two bolts hole in described every a pair of bolt hole are located at respectively on the another side of upper and relative with the manhole device hermatic door body of described manhole device.
4. annealing furnace outlet sealing device as claimed in claim 3 is characterized in that, described manhole device comprises that a manhole body and covers the manhole plate on the described manhole body, is provided with at least one the first sealing member between described manhole plate and the manhole body.
5. annealing furnace outlet sealing device as claimed in claim 4 is characterized in that, is provided with at least one the second sealing member between described manhole body and the hermatic door body.
6. such as the described annealing furnace outlet sealing device of any one among the claim 1-5, it is characterized in that, offer an intake ducting and a gas exhaust duct on the described hermatic door body, its respectively with the intrinsic seal cavity conducting of hermatic door.
7. annealing furnace outlet sealing device as claimed in claim 6 is characterized in that, also offers an oxygen level sampling line on the described hermatic door body, its also with described seal cavity conducting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220116020 CN202643794U (en) | 2012-03-23 | 2012-03-23 | Sealing device for annealing furnace outlet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220116020 CN202643794U (en) | 2012-03-23 | 2012-03-23 | Sealing device for annealing furnace outlet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202643794U true CN202643794U (en) | 2013-01-02 |
Family
ID=47412929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220116020 Expired - Lifetime CN202643794U (en) | 2012-03-23 | 2012-03-23 | Sealing device for annealing furnace outlet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202643794U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557337A (en) * | 2013-10-31 | 2014-02-05 | 中冶南方(武汉)威仕工业炉有限公司 | Quickly cut-off flap valve device for muffle bright annealing furnace |
| CN104673976A (en) * | 2013-11-26 | 2015-06-03 | 宝钢新日铁汽车板有限公司 | Annealing furnace inlet sealing device |
| CN106481185A (en) * | 2015-09-02 | 2017-03-08 | 上海东新冶金技术工程有限公司 | Can the accurately hermatic door of off-position and its using method for galvanizing |
-
2012
- 2012-03-23 CN CN 201220116020 patent/CN202643794U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557337A (en) * | 2013-10-31 | 2014-02-05 | 中冶南方(武汉)威仕工业炉有限公司 | Quickly cut-off flap valve device for muffle bright annealing furnace |
| CN104673976A (en) * | 2013-11-26 | 2015-06-03 | 宝钢新日铁汽车板有限公司 | Annealing furnace inlet sealing device |
| CN106481185A (en) * | 2015-09-02 | 2017-03-08 | 上海东新冶金技术工程有限公司 | Can the accurately hermatic door of off-position and its using method for galvanizing |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |
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| CX01 | Expiry of patent term |