CN203653603U - Air sealing device for oxygen lance nozzle of smelting converter - Google Patents
Air sealing device for oxygen lance nozzle of smelting converter Download PDFInfo
- Publication number
- CN203653603U CN203653603U CN201320890969.1U CN201320890969U CN203653603U CN 203653603 U CN203653603 U CN 203653603U CN 201320890969 U CN201320890969 U CN 201320890969U CN 203653603 U CN203653603 U CN 203653603U
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- CN
- China
- Prior art keywords
- flange
- smelting converter
- sealing gland
- air sealing
- air
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- 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 - Lifetime
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- 238000007789 sealing Methods 0.000 title claims abstract description 69
- 239000001301 oxygen Substances 0.000 title claims abstract description 45
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 45
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 238000003723 Smelting Methods 0.000 title claims abstract description 39
- 239000007789 gas Substances 0.000 claims abstract description 17
- 210000004907 gland Anatomy 0.000 claims description 41
- 238000009423 ventilation Methods 0.000 claims description 16
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 71
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 24
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 229910001873 dinitrogen Inorganic materials 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 abstract 1
- 239000000779 smoke Substances 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 description 34
- 241000208125 Nicotiana Species 0.000 description 17
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 17
- 230000000694 effects Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- GFNGCDBZVSLSFT-UHFFFAOYSA-N titanium vanadium Chemical compound [Ti].[V] GFNGCDBZVSLSFT-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model provides an air sealing device of an oxygen lance nozzle of a smelting converter, and the air sealing device comprises an air sealing box, a first flange, a seal plate and a second flange, wherein the air sealing box is a hollow annular box, a ventilated inclined hole is formed at the side wall of the box, the first flange and the second flange are fixedly connected to the upper and lower ends of the air sealing box respectively, the sealing plate is fixedly connected to the first flange, the second flange and a first air pipe respectively, and the sealing plate, the first flange, the second flange and air sealing box are together formed into a gas-distributing tank, the gas-distributing tank is communicated with the first air pipe. The air sealing device is mounted on the water jacket muzzle of the oxygen lance of the smelting converter, when the smelting converter operates, nitrogen gas for air sealing is allowed to enter from the first gas pipe into the gas-distributing tank and pass through the ventilated inclined hole to enter the water jacket muzzle of the oxygen lance to form a high-speed vortex-like air flow, thereby blocking the entire water jacket muzzle of the oxygen lance to prevent a large amount of yellow smoke from being discharged into the atmosphere and preventing the occurrence of environmental accidents. The air sealing device has the advantages of simplicity in installation, low cost and the like.
Description
Technical field
The utility model relates to smelting converter technical field, especially relates to a kind of smelting converter oxygen muzzle air seal set.
Background technology
Smelting converter is the requisite smelting equipment of steelworks, in smelting converter working process, particularly vanadium titanium smelting converter, in smelting process, having a lot of tobacco discharges from oxygen rifle water jacket muzzle, in these tobacco, contain more hazardous and noxious substances, if left, these tobacco are discharged in atmosphere, and easily contaminate environment, is unfavorable for environmental protection.
Existing smelting converter all adopts movable nitrogen envelope to block the tobacco of oxygen rifle outlet, as shown in Figure 1, the three-flange 10 of oxygen rifle water jacket 9 ends is connected and fixed with the 4th flange 15 of movable nitrogen envelope seat 12 bottoms, the second pneumatic tube 11 is connected and communicates with movable nitrogen envelope seat 12, and movable nitrogen seals 14 bottoms and movable nitrogen envelope seat 12 tops are connected and fixed.When the nitrogen that sealing gland is used enters from the second pneumatic tube 11 movable nitrogen envelope seat 12, enter into movable nitrogen envelope 14 by the transfer port 13 at movable nitrogen envelope seat 12 tops, because the bottom opening of movable nitrogen envelope 14 communicates with the opening of oxygen rifle water jacket 9 ends, therefore, enter the tobacco that nitrogen in movable nitrogen envelope 14 can block oxygen rifle water jacket 9 muzzle, stop it to enter atmosphere.Owing to adopting this kind of lock mode for once to block, coordinate and have relatively high expectations for equipment connection, once poor fit, oxygen rifle water jacket 9 muzzle have a large amount of tobacco and discharge, these tobacco are discharged in atmosphere can cause environmental pollution, and environmental protection accident even may occur.
Utility model content
The technical problems to be solved in the utility model is: the problem existing for prior art, a kind of smelting converter oxygen muzzle air seal set is provided, improve the sealing gland effect of the oxygen rifle water jacket muzzle to smelting converter, stop the tobacco producing in smelting converter production process to be discharged in a large number in atmosphere by oxygen rifle water jacket muzzle.
The technical problems to be solved in the utility model realizes by the following technical solutions: a kind of smelting converter oxygen muzzle air seal set, comprise sealing gland casing, the first flange and sealing plate and the second flange, described sealing gland casing is hollow ring casing, offer ventilation inclined hole at wall box, the first described flange and the second flange are fixedly connected on respectively the upper and lower both ends of sealing gland casing, described sealing plate respectively with the first flange, the second flange is fixedly connected with the first pneumatic tube, and sealing plate is with the first flange, the common composition point gas tank of the second flange and sealing gland casing, described point of gas tank is connected and communicates with the first pneumatic tube.
Preferably, the pitch angle of the ventilation inclined hole on described sealing gland casing wall box is 30 degree-60 degree.
Preferably, the quantity of the ventilation inclined hole on described sealing gland casing wall box is 40-80.
Preferably, the ventilation inclined hole on described sealing gland casing wall box is that ring wall box is uniformly distributed.
Preferably, described sealing gland casing is the annular casing of hollow.
Preferably, described the first pneumatic tube being fixedly connected with sealing plate is provided with two, and is all connected and communicates with a point gas tank.
Preferably, described two the first pneumatic tubes that are fixedly connected with sealing plate are the both sides that are symmetrically distributed in sealing gland casing taking the axis of sealing gland casing as symmetry axis.
Compared with prior art, the beneficial effects of the utility model are: the utility model is arranged on the oxygen rifle water jacket muzzle portion of smelting converter, its top is connected sealing with movable nitrogen envelope seat bottom, and make the entrance of the ventilation inclined hole on sealing gland casing higher than outlet, in the time that smelting converter is worked, first pneumatic tube of nitrogen gas stream from air seal set enters a point gas tank, and enter the vortex-like air-flow of oxygen rifle water jacket muzzle formation high speed by ventilation inclined hole, thereby whole oxygen rifle water jacket muzzle is blocked, and the tobacco of having stopped to produce in smelting converter production process emits outward.Meanwhile, the nitrogen gas stream entering in movable nitrogen envelope seat also enters movable nitrogen envelope by transfer port, thereby the tobacco to oxygen rifle water jacket muzzle plays blockade effect again, this dual sealing gland can stop tobacco to be discharged in a large number in atmosphere by oxygen rifle water jacket muzzle, avoid environmental pollution, prevent environmental protection accident.
Brief description of the drawings
Fig. 1 is smelting converter oxygen muzzle air seal structure figure of the prior art.
Fig. 2 is the front view of a kind of smelting converter oxygen of the utility model muzzle air seal set.
Fig. 3 is the vertical view of a kind of smelting converter oxygen of the utility model muzzle air seal set.
Fig. 4 is A place broken section enlarged view in Fig. 2.
Fig. 5 is for adopting a kind of smelting converter oxygen muzzle air seal structure figure of the present utility model.
Figure middle part product token name claims: 1-the first pneumatic tube, and 2-divides gas tank, the 3-inclined hole of ventilating, 4-the first flange, 5-sealing plate, 6-sealing gland casing, 7-the second flange, 8-through hole, 9-oxygen rifle water jacket, 10-three-flange, 11-the second pneumatic tube, the movable nitrogen envelope of 12-seat, 13-transfer port, the movable nitrogen envelope of 14-, 15-the 4th flange.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with the drawings and specific embodiments, the utility model is elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
A kind of smelting converter oxygen muzzle air seal set as shown in Fig. 2-Fig. 4, mainly comprise sealing gland casing 6, the first flange 4 and sealing plate 5 and the second flange 7, the annular casing that described sealing gland casing 6 is hollow, be welded and fixed respectively the first flange 4 and the second flange 7 in the upper/lower terminal portion of sealing gland casing 6, be equipped with on the second flange 7 through hole 8 that several are connected use at the first flange 4; Described sealing plate 5 is welded and fixed with the first flange 4, the second flange 7 and the first pneumatic tube 1 respectively, sealing plate 5 and the first flange 4, the second flange 7 and sealing gland casing 6 have formed a point of gas tank 2 jointly, and described point of gas tank 2 is connected and communicates with the first pneumatic tube 1.Offer at the wall box of sealing gland casing 6 the ventilation inclined hole 3 that diameter is Ф 5, the pitch angle of described ventilation inclined hole 3 is 30 degree-60 degree, and value is 30 degree, 40 degree, 50 degree, 60 degree conventionally, and optimum value is 45 degree, as shown in Figure 4; The difference requiring according to smelting converter oxygen muzzle sealing gland, described ventilation inclined hole 3 arranges 40-80 altogether, and the tobacco amount that concrete quantity basis smelting converter produces is determined.Ventilate in the present embodiment pitch angle of inclined hole 3 is 45 degree, and quantity is 64, and all ventilation inclined holes 3 are all that the wall box of ring sealing gland casing 6 is uniformly distributed, as shown in Figure 3.So both can ensure to enter by ventilation inclined hole 3 the blanket gas flow of sealing gland casing 6, but also make the air-flow in score gas tank 2 be disperseed equably also to enter at a high speed sealing gland casing 6 inside, thereby at the inner vortex-like air-flow of high speed that forms of sealing gland casing 6, this vortex-like air-flow can block whole oxygen rifle water jacket 9 muzzle, thereby stops the tobacco producing in smelting converter production process to emit by oxygen rifle water jacket 9 is outer.
In order to ensure the sealing gland effect to oxygen rifle water jacket 9 muzzle, must make to enter the airshed abundance in point gas tank 2, and the air pressure of point gas tank 2 inside is substantially balanced, for this reason, two the first pneumatic tubes 1 that are fixedly connected with sealing plate 5 can be set, these two the first pneumatic tubes 1 are symmetrically distributed in the both sides of sealing gland casing 6 as symmetry axis taking the axis of sealing gland casing 6, and every the first pneumatic tube 1 is all connected and communicates with a point gas tank 2, as shown in Figure 3.In order to facilitate being connected of air seal set of the present utility model and outside intake ducting, can be fixedly connected with flange in the outermost end of the first pneumatic tube 1, as shown in Figure 5.
Installation of the present utility model is applied as shown in Figure 5, the three-flange 10 of oxygen rifle water jacket 9 muzzle ends is connected and fixed with the second flange 7 in the utility model air seal set, the first 4 of flanges are connected and fixed with the 4th flange 15 of movable nitrogen envelope seat 12 bottoms, movable nitrogen seals 14 bottoms and movable nitrogen envelope seat 12 tops are connected and fixed, and has increased a fixed air seal apparatus in original movable nitrogen envelope seat 12 bottoms.For effectively this air seal set of protection is bad by oxygen rifle water jacket 9 muzzle accumulated slags extensions, sealing gland casing 6 internal diameters of this air seal set must be greater than movable nitrogen envelope seat 12 internal diameters.In the time that smelting converter is worked, by variable valve, nitrogen flow is regulated, under oxygen rifle, automatically open nitrogen trip valve when rifle, the nitrogen that sealing gland is used enter point gas tank 2 of air seal set by the first pneumatic tube 1, then enter oxygen rifle water jacket 9 muzzle by ventilation inclined hole 3, and form the vortex-like air-flow of high speed at muzzle, and whole muzzle is carried out to air-flow blockade, stop the tobacco producing in smelting converter to emit outward.Meanwhile, the nitrogen that sealing gland is used also enters movable nitrogen envelope seat 12 from the second pneumatic tube 11, then enter in movable nitrogen envelope 14 by the transfer port 13 at movable nitrogen envelope seat 12 tops, thereby the tobacco that oxygen rifle water jacket 9 muzzle are emerged plays blockade effect again, be that air seal set of the present utility model plays main blockade effect to tobacco in smelting converter production process, 14 of original movable nitrogen envelopes play secondary blockade effect.The tobacco that can stop like this to produce in smelting converter production process is discharged in atmosphere in a large number by oxygen rifle water jacket 9 muzzle, has avoided the generation of environmental protection accident.The utility model adopts simple flange connection, easy for installation, quick, and in installation process, without setting up in addition nitrogen pipeline, improvement cost is low; Also take full advantage of original nitrogen envelope nitrogen pipeline and original movable nitrogen seal device, avoided equipment waste, and then saved improvement cost simultaneously.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; it should be pointed out that all any amendments of doing within spirit of the present utility model and principle, be equal to replacement and improvement etc., within all should being included in protection domain of the present utility model.
Claims (7)
1. a smelting converter oxygen muzzle air seal set, it is characterized in that: comprise sealing gland casing (6), the first flange (4) and sealing plate (5) and the second flange (7), described sealing gland casing (6) is hollow ring casing, offer ventilation inclined hole (3) at wall box, described the first flange (4) and the second flange (7) are fixedly connected on respectively the upper and lower both ends of sealing gland casing (6), described sealing plate (5) respectively with the first flange (4), the second flange (7) is fixedly connected with the first pneumatic tube (1), and sealing plate (5) and the first flange (4), the common composition point gas tank (2) of the second flange (7) and sealing gland casing (6), described point of gas tank (2) is connected and communicates with the first pneumatic tube (1).
2. a kind of smelting converter oxygen muzzle air seal set according to claim 1, is characterized in that: the pitch angle of the ventilation inclined hole (3) on described sealing gland casing (6) wall box is 30 degree-60 degree.
3. according to a kind of smelting converter oxygen muzzle air seal set described in claim 1 or 2, it is characterized in that: the quantity of the ventilation inclined hole (3) on described sealing gland casing (6) wall box is 40-80.
4. a kind of smelting converter oxygen muzzle air seal set according to claim 3, is characterized in that: the ventilation inclined hole (3) on described sealing gland casing (6) wall box is that ring wall box is uniformly distributed.
5. according to a kind of smelting converter oxygen muzzle air seal set described in claim 1 or 2, it is characterized in that: described sealing gland casing (6) is the annular casing of hollow.
6. a kind of smelting converter oxygen muzzle air seal set according to claim 1, it is characterized in that: described the first pneumatic tube (1) being fixedly connected with sealing plate (5) is provided with two, and be all connected and communicate with a point gas tank (2).
7. a kind of smelting converter oxygen muzzle air seal set according to claim 6, is characterized in that: described two the first pneumatic tubes (1) that are fixedly connected with sealing plate (5) are the both sides that are symmetrically distributed in sealing gland casing (6) taking the axis of sealing gland casing (6) as symmetry axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320890969.1U CN203653603U (en) | 2013-12-31 | 2013-12-31 | Air sealing device for oxygen lance nozzle of smelting converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320890969.1U CN203653603U (en) | 2013-12-31 | 2013-12-31 | Air sealing device for oxygen lance nozzle of smelting converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203653603U true CN203653603U (en) | 2014-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320890969.1U Expired - Lifetime CN203653603U (en) | 2013-12-31 | 2013-12-31 | Air sealing device for oxygen lance nozzle of smelting converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203653603U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106399623A (en) * | 2016-05-24 | 2017-02-15 | 江苏永钢集团有限公司 | Oxygen lance nitrogen sealing plug |
-
2013
- 2013-12-31 CN CN201320890969.1U patent/CN203653603U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106399623A (en) * | 2016-05-24 | 2017-02-15 | 江苏永钢集团有限公司 | Oxygen lance nitrogen sealing plug |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140618 |
|
| CX01 | Expiry of patent term |