CN203532767U - Flap valve device for rapidly cutting off muffle bright annealing furnace - Google Patents
Flap valve device for rapidly cutting off muffle bright annealing furnace Download PDFInfo
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- CN203532767U CN203532767U CN201320684390.XU CN201320684390U CN203532767U CN 203532767 U CN203532767 U CN 203532767U CN 201320684390 U CN201320684390 U CN 201320684390U CN 203532767 U CN203532767 U CN 203532767U
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- flap
- valve
- valve casing
- annealing furnace
- flap valve
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Abstract
The utility model provides a flap valve device for rapidly cutting off a muffle bright annealing furnace. The flap valve device comprises two flap valves which are arranged at a strip steel inlet and a strip steel outlet of the annealing furnace respectively. Each flap valve comprises a valve casing, a flap, a flap shaft, a bearing and a bearing block, wherein the valve casings are mounted on a supporting frame of the annealing furnace, and the two flaps are mounted on the corresponding flap shafts, mounted on two inner sides of the valve casings through the bearings and the bearing blocks and symmetrically arranged on two sides of a strip steel advancing path. A valve casing sealing sleeve is mounted on the strip steel advancing path below the flaps, two cylinders are mounted outside the valve casings on the supporting frame and can drive the two flaps to synchronously turn over and close inwards, two ends of each flap shaft and the valve casings are sealed by the aid of ceramic fiber blankets, and heat-resistant and elastic sealing materials are pasted on contact surfaces of the two flaps when the two flaps are at closed positions. The device is rapid in action and fine in sealing effect, stability of atmosphere inside the furnace can be ensured, production safety is ensured, and operating cost is reduced.
Description
Technical field
The utility model relates to metallurgy industry annealing furnace technical field, refers more particularly to the Flap valve device of a kind of fast shut-off at a kind of Iron And Steel Plant stainless steel light vertical annealing furnace inlet/outlet place.
Background technique
The band steel vertical bright annealing furnace of Iron And Steel Plant, furnace atmosphere is mainly H2.Bright annealing furnace need to be by atmosphere fast shut-off inside and outside stove when catastrophic failure or accident in running, prevents entering of the escaping of furnace atmosphere, stove outer air, burning or the blast of avoiding in stove oxidation and H2 with steel to overflow.Traditional way is: with steel import and export band steel around, a circle high pressure nitrogen jet pipe is set, passes into rapidly high pressure nitrogen when catastrophic failure or accident, the nitrogen gas curtain of surrounding's formation with steel, separates atmosphere inside and outside stove.
But this sealing means, sealing effect is bad, and poor stability can not keep the stable of furnace atmosphere, affects strip quality in stove, also expends a large amount of nitrogen simultaneously, increases operating cost.
Summary of the invention
Technical problem to be solved in the utility model is the technical deficiency over against above-mentioned existence, provide a kind of when furnace for brightness catastrophic failure or accident, atmosphere inside and outside stove can be separated fast, be swift in motion, sealing effect is good, guarantee the stable of furnace atmosphere, guarantee the safety of producing, reduce the Flap valve device of the muffle bright annealing stove fast shut-off of operating cost.
The utility model solves the technological scheme that its technical problem adopts:
A kind of Flap valve device of muffle bright annealing stove fast shut-off, it is characterized in that: at annealing furnace band steel inlet/outlet place, one group of Flap valve is respectively set, Flap valve includes valve casing, turnover panel, rotating plate shaft, bearing, bearing support, wherein valve casing is arranged on the supporting frame of annealing furnace, two turnover panels are arranged on rotating plate shaft, by bearing and bearing support, be arranged on the both sides of valve casing inside, be symmetricly set on the both sides, path of advancing with steel, and on the band steel path below turnover panel, valve casing Sealed casing pipe be installed; On the supporting frame of described valve casing outside, two cylinders are installed, two Telescopic-cylinder ends are connected with two rotating plate shafts by crank respectively, and two cylinders can drive synchronously flip closed to the inside of two turnover panels; Described rotating plate shaft two ends utilize ceramic fiber blanket and valve casing to seal, and two end axles bearing place is also provided with second Sealing, seals up furnace atmosphere completely; Described two turnover panels are when in the close position, and close contact, is pasted with on its surface of contact and has heat resistance and flexible sealing material mutually.
In such scheme, described cylinder is all connected with automatic cutting-off controlling system.When band steel is out of service or occur production, equipment failure, cutting system receives shutoff signal automatically, and cylinder quick acting drives turnover panel closed.
In such scheme, described turnover panel is the arcuate structure being bent upwards, the outwardly convex face that when closed is two arcuate structures contacts closed, can be in the situation that micro-displacement be poor, two turnover panels still can seal closure, if there is band centre, steel passes, two curved surfaces with the contacting of steel, also can reduce cut and wearing and tearing with steel.
Main beneficial effect of the present utility model is:
This device action is rapid, sealing effect is good, guarantees the stable of furnace atmosphere, guarantees the safety of production, improves the quality with steel; Or else need to expend a large amount of high pressure nitrogens, reduce production run cost; The keying of valve is automatically to be controlled by cylinder, is convenient to realize the automation of producing and controls.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment plan view
Fig. 2 is the A-A sectional view of Fig. 1
Fig. 3 is the B-B sectional view of Fig. 1
Fig. 4 is the C-C sectional view of Fig. 1
In figure: 1, supporting frame; 2, bearing support; 3, bearing; 4, valve casing; 5, rotating plate shaft; 6, ceramic fiber blanket; 7, cylinder; 8, crank; 9, turnover panel; 10, sealing material; 11, valve casing Sealed casing pipe; 12, band steel.
Embodiment
Below in conjunction with embodiment, to the utility model, embodiment is further described:
The Flap valve device of muffle bright annealing stove fast shut-off as shown in Figure 1, at annealing furnace band steel 12 inlet/outlet places, one group of Flap valve is respectively set, Flap valve includes valve casing 4, turnover panel 9, rotating plate shaft 5, bearing 3, bearing support 2, wherein valve casing 4 is arranged on the supporting frame 1 of annealing furnace, two turnover panels 9 are arranged on rotating plate shaft 5, by bearing 3 and bearing support 2, be arranged on the both sides of valve casing 4 inside, be symmetricly set on the both sides, path of advancing with steel 12, and on the band steel path below turnover panel 9, valve casing Sealed casing pipe 11 be installed; Two cylinder 7, two cylinder 7 telescopic ends are installed on the supporting frame 1 of valve casing 4 outsides and are connected with two rotating plate shafts 5 by crank 8 respectively, two cylinders 7 can drive synchronously flip closed to the inside of two turnover panels 9; Described rotating plate shaft 5 two ends utilize ceramic fiber blanket 6 and valve casing 4 to seal, and two end axles bearing 2 places are also provided with the
Two road Sealings, seal up furnace atmosphere completely; Described two turnover panels 9 are when in the close position, and close contact, is pasted with on its surface of contact and has heat resistance and flexible sealing material 10 mutually.
In the present embodiment, described cylinder 7 is all connected with automatic cutting-off controlling system.When band steel is out of service or occur production, equipment failure, cutting system receives shutoff signal automatically, and cylinder 7 quick actings drive turnover panel 9 closures.
In such scheme, the arcuate structure of described turnover panel 9 for being bent upwards, the outwardly convex face that when closed is two arcuate structures contacts closed, can be in the situation that micro-displacement be poor, two turnover panels 9 still can seal closure, if there is band centre, steel 12 passes, two curved surfaces with the contacting of steel 12, also can reduce cut and wearing and tearing with steel 12.
When bright annealing furnace normally moves, turnover panel 9 is in open mode.When furnace for brightness catastrophic failure or accident, cylinder 7 action, drives rotating plate shafts 5, turnover panel 9 to rotate rapidly by crank 8, between two turnover panels, form between turnover panel 9 and valve casing Sealed casing pipe 11 and seal, by atmosphere cut-out inside and outside stove.Rotating plate shaft 5 two ends utilize ceramic fiber blanket 6 and valve casing 1 to seal, and two end axles bearing 2 places are also provided with second sealing, seal up furnace atmosphere completely.
Between two turnover panels 9 of closing, may have also and may not have (not having during broken belt) band steel 12 to pass through, no matter have or not band steel 12 to pass through, all must guarantee the sealability between two turnover panels 9, while having band steel 12, can't abrade its surface simultaneously, therefore on two turnover panels 9, pasted a kind of special sealing material 10, this material had both had good sealing, had again certain elasticity, also have stronger heat resistance, this material is selected polytetrafluoro material at present.
Protection domain of the present utility model is not limited to the above embodiments, and obviously, those skilled in the art can carry out various changes and distortion and not depart from scope and spirit of the present utility model the utility model.If these changes and distortion belong in the scope of the utility model claim and equivalent technologies thereof, intention of the present utility model also comprises these changes and is out of shape interior.
Claims (3)
1. the Flap valve device of a muffle bright annealing stove fast shut-off, it is characterized in that: at annealing furnace band steel inlet/outlet place, one group of Flap valve is respectively set, Flap valve includes valve casing, turnover panel, rotating plate shaft, bearing, bearing support, wherein valve casing is arranged on the supporting frame of annealing furnace, two turnover panels are arranged on rotating plate shaft, by bearing and bearing support, be arranged on the both sides of valve casing inside, be symmetricly set on the both sides, path of advancing with steel, and on the band steel path below turnover panel, valve casing Sealed casing pipe be installed; On the supporting frame of described valve casing outside, two cylinders are installed, two Telescopic-cylinder ends are connected with two rotating plate shafts by crank respectively, and two cylinders can drive synchronously flip closed to the inside of two turnover panels; Described rotating plate shaft two ends utilize ceramic fiber blanket and valve casing to seal, and two end axles bearing place is also provided with second Sealing, seals up furnace atmosphere completely; Described two turnover panels are when in the close position, and close contact, is pasted with on its surface of contact and has heat resistance and flexible sealing material mutually.
2. the Flap valve device of muffle bright annealing stove fast shut-off as claimed in claim 1, it is characterized in that: described cylinder is all connected with automatic cutting-off controlling system, when band steel is out of service or occur production, equipment failure, automatically cutting system receives shutoff signal, cylinder quick acting, drives turnover panel closed.
3. the Flap valve device of muffle bright annealing stove fast shut-off as claimed in claim 2, is characterized in that: described turnover panel is the arcuate structure being bent upwards, and is that the outwardly convex face of two arcuate structures contacts closed when closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320684390.XU CN203532767U (en) | 2013-10-31 | 2013-10-31 | Flap valve device for rapidly cutting off muffle bright annealing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320684390.XU CN203532767U (en) | 2013-10-31 | 2013-10-31 | Flap valve device for rapidly cutting off muffle bright annealing furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203532767U true CN203532767U (en) | 2014-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320684390.XU Expired - Fee Related CN203532767U (en) | 2013-10-31 | 2013-10-31 | Flap valve device for rapidly cutting off muffle bright annealing furnace |
Country Status (1)
| Country | Link |
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| CN (1) | CN203532767U (en) |
Cited By (1)
| 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 |
-
2013
- 2013-10-31 CN CN201320684390.XU patent/CN203532767U/en not_active Expired - Fee Related
Cited By (1)
| 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 |
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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: 20140409 Termination date: 20151031 |
|
| EXPY | Termination of patent right or utility model |