CN213570567U - Converter oxygen lance nitrogen seal device - Google Patents
Converter oxygen lance nitrogen seal device Download PDFInfo
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- CN213570567U CN213570567U CN202022440733.0U CN202022440733U CN213570567U CN 213570567 U CN213570567 U CN 213570567U CN 202022440733 U CN202022440733 U CN 202022440733U CN 213570567 U CN213570567 U CN 213570567U
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- nitrogen sealing
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Abstract
The utility model belongs to the technical field of converter equipment, concretely relates to converter oxygen rifle nitrogen seal device, the purpose is that it is unreasonable to solve current nitrogen sealing plug angle setting, and sealed effect is poor technical problem, and technical scheme is: a nitrogen sealing device for a converter oxygen lance comprises a base and a nitrogen sealing plug, wherein the nitrogen sealing plug is arranged on the inner side wall of the base; the utility model discloses a be equipped with the air vent of a plurality of tilt up on the nitrogen sealing plug medial plate, make the components of a whole that can function independently nitrogen sealing plug and insert between the oxygen rifle of muzzle from a plurality of layers of interval distribution from the top down can seal the sealed air curtain in clearance between the two, improved the nitrogen sealing effect greatly to prevent effectively that high temperature sediment grain from nitrogen sealing plug gap spill, prevent that the high temperature smoke and dust from spilling over from the factory building top.
Description
Technical Field
The utility model belongs to the technical field of converter equipment, concretely relates to converter oxygen rifle nitrogen seal device.
Background
The nitrogen sealing device is auxiliary equipment matched with an oxygen lance of the converter, because the converter can generate flue gas containing a large amount of impurities in the converting process, in order to prevent the flue gas from escaping into the air from a gap between the oxygen lance and an oxygen lance insertion opening to pollute the environment, the nitrogen sealing device can be arranged between the oxygen lance and an oxygen lance insertion opening of a furnace mouth flue, the nitrogen sealing device generally comprises a nitrogen sealing seat arranged at the oxygen lance insertion opening and a nitrogen sealing plug movably sleeved on a lance body of the oxygen lance, but the angle in a cavity of the currently used nitrogen sealing plug is unreasonable, the sealing effect is poor, firstly, high-temperature slag particles are splashed out from the gap of the nitrogen sealing plug in the converting process, the labor intensity for cleaning the oxygen lance platform is increased, secondly, and thirdly, the generated high-temperature smoke dust overflows from the top of a factory building to influence the air quality of.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the technical problems that the angle of the existing nitrogen sealing plug is unreasonable and the sealing effect is poor, and providing a nitrogen sealing device of a converter oxygen lance.
In order to solve the technical problem, the utility model discloses a technical scheme is:
a nitrogen sealing device for a converter oxygen lance comprises a base and a nitrogen sealing plug, wherein the nitrogen sealing plug is arranged on the inner side wall of the base;
the base comprises two nitrogen pipes, a base outer side plate, a base top plate, a base upper inner side plate, a base bottom plate and a base lower inner side plate, the base outer side plate is of a cylindrical structure, the base top plate and the base bottom plate are of a circular ring plate structure, the base upper inner side plate and the base lower inner side plate are of a conical cylindrical structure, the upper end of the base outer side plate is connected with the outer end of the bottom surface of the base top plate, the lower end of the base outer side plate is connected with the outer end of the top surface of the base bottom plate, the upper end of the base upper inner side plate is connected with the inner end of the bottom surface of the base top plate, the lower end of the base lower inner side plate is connected with the inner end of the top surface of the base bottom plate, the base outer side plate, the base top plate, the base upper inner side plate, the base bottom, forming a base nitrogen channel, wherein the two nitrogen pipes are respectively and symmetrically arranged in the middle of the outer side wall of the base outer side plate and are communicated with the inner cavity of the base;
the nitrogen seal plug comprises a first outer side plate, a second outer side plate, a nitrogen seal plug top plate, a nitrogen seal plug inner side plate, a nitrogen seal plug bottom plate and a third outer side plate; the first outer side plate and the nitrogen sealing plug inner side plate are of a cylindrical structure, the second outer side plate and the third outer side plate are of a conical cylindrical structure, the nitrogen sealing plug top plate and the nitrogen sealing plug bottom plate are of a circular plate structure, the upper end of the first outer side plate is connected with the outer end of the bottom surface of the nitrogen sealing plug top plate, the lower end of the first outer side plate is connected with the upper end of the third outer side plate, the upper end of the nitrogen sealing plug inner side plate is connected with the inner end of the bottom surface of the nitrogen sealing plug top plate, the lower end of the nitrogen sealing plug inner side plate is connected with the inner end of the top surface of the nitrogen sealing plug bottom plate, the outer end of the top surface of the nitrogen sealing plug bottom plate is connected with the lower end of the second outer side plate, a plurality of upward-inclined vent holes are uniformly arranged on the nitrogen sealing plug inner side plate, the first outer side plate, the second outer side plate, the nitrogen sealing plug top plate, the nitrogen sealing plug inner side plate, the nitrogen sealing plug bottom plate and the third, forming a nitrogen-sealed nitrogen channel.
Furthermore, a plurality of wear-resistant rings are uniformly arranged between the adjacent vent holes on the inner side wall of the inner side plate of the nitrogen seal plug.
Further, the inclination angle of the vent hole is 35-45 degrees.
Furthermore, the conicity of the inner side plate on the base, the conicity of the inner side plate under the base, the conicity of the second outer side plate and the conicity of the third outer side plate are the same, and the inner diameter of the inner side plate on the base and the inner diameter of the inner side plate under the base are the same as the outer diameter of the second outer side plate and the outer diameter of the third outer side plate.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses a be equipped with the air vent of a plurality of tilt up on the nitrogen sealing plug medial plate, make the components of a whole that can function independently nitrogen sealing plug and insert between the oxygen rifle of muzzle from a plurality of layers of interval distribution from the top down can seal the sealed air curtain in clearance between the two, improved the nitrogen sealing effect greatly to prevent effectively that high temperature sediment grain from nitrogen sealing plug gap spill, prevent that the high temperature smoke and dust from spilling over from the factory building top.
2. The utility model discloses simple structure, operation are swift, under the condition that need not increase manual operation, have satisfied the production requirement, are applicable to the fast rhythm production of converter.
3. The utility model discloses set up a plurality of wear rings at nitrogen sealing plug interior plate, strengthened the antifriction between nitrogen sealing plug and the oxygen rifle, improved the life of this device.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the base structure of FIG. 1;
FIG. 3 is a schematic view of the nitrogen plug structure of FIG. 1;
in the figure: 1-base, 2-nitrogen sealing plug, 3-wear-resistant ring, 4-oxygen lance;
wherein: 1.1-nitrogen pipe, 1.2-base outer side plate, 1.3-base top plate, 1.4-base upper inner side plate, 1.5-base bottom plate, 1.6-base inner cavity, 1.7-base lower inner side plate and 1.8-base nitrogen channel;
2.1-first outer side plate, 2.2-second outer side plate, 2.3-nitrogen sealing top plate, 2.4-nitrogen sealing inner side plate, 2.5-vent hole, 2.6-nitrogen sealing bottom plate, 2.7-nitrogen sealing inner cavity, 2.8-third outer side plate and 2.9-nitrogen sealing nitrogen channel.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
As shown in FIGS. 1 to 3, the nitrogen sealing device for the converter oxygen lance of the present embodiment comprises a base 1 and a nitrogen plug 2, wherein the nitrogen plug 2 is arranged on the inner side wall of the base 1;
the base 1 comprises two nitrogen pipes 1.1, a base outer plate 1.2, a base top plate 1.3, a base upper inner plate 1.4, a base bottom plate 1.5 and a base lower inner plate 1.7, the base outer plate 1.2 is of a cylinder structure, the base top plate 1.3 and the base bottom plate 1.5 are of a circular ring plate structure, the base upper inner plate 1.4 and the base lower inner plate 1.7 are of a conical cylinder structure, the upper end of the base outer plate 1.2 is connected with the bottom surface outer end of the base top plate 1.3, the lower end of the base outer plate 1.2 is connected with the top surface outer end of the base bottom plate 1.5, the upper end of the base upper inner plate 1.4 is connected with the bottom surface inner end of the base top plate 1.3, the lower end of the base lower inner plate 1.7 is connected with the top surface inner end of the base bottom plate 1.5, the base outer plate 1.2, the base top plate 1.3, the base upper inner plate 1.4, the base bottom plate 1.5 and the base lower plate 1.7 together form a gap between the base upper inner plate 1.4 and the base lower end of the base inner plate 1.4, a base nitrogen channel 1.8 is formed, and the two nitrogen pipes 1.1 are respectively and symmetrically arranged in the middle of the outer side wall of the base outer side plate 1.2 and communicated with a base inner cavity 1.6;
the nitrogen seal plug 2 comprises a first outer side plate 2.1, a second outer side plate 2.2, a nitrogen seal plug top plate 2.3, a nitrogen seal plug inner side plate 2.4, a nitrogen seal plug bottom plate 2.6 and a third outer side plate 2.8; the first outer side plate 2.1 and the nitrogen sealing plug inner side plate 2.4 are of a cylindrical structure, the second outer side plate 2.2 and the third outer side plate 2.8 are of a conical cylindrical structure, the nitrogen sealing plug top plate 2.3 and the nitrogen sealing plug bottom plate 2.6 are of a circular plate structure, the upper end of the first outer side plate 2.1 is connected with the outer end of the bottom surface of the nitrogen sealing plug top plate 2.3, the lower end of the first outer side plate 2.1 is connected with the upper end of the third outer side plate 2.8, the upper end of the nitrogen sealing plug inner side plate 2.4 is connected with the inner end of the bottom surface of the nitrogen sealing plug top plate 2.3, the lower end of the nitrogen sealing plug inner side plate 2.4 is connected with the inner end of the top surface of the nitrogen sealing plug bottom plate 2.6, the outer end of the top surface of the nitrogen sealing plug bottom plate 2.6 is connected with the lower end of the second outer side plate 2.2, a plurality of vent holes 2.5 which are uniformly arranged on the nitrogen sealing plug inner side plate 2.4 and are inclined upwards by 40 degrees, and the first outer side plate 2.1, the second outer side plate 2.2.2, the nitrogen sealing plug top plate, the nitrogen sealing plug inner side plate 2.3, and a gap is reserved between the lower end of the third outer side plate 2.8 and the upper end of the second outer side plate 2.2, so that a nitrogen channel 2.9 of the nitrogen seal plug is formed.
In order to enhance the friction resistance between the nitrogen sealing plug and the oxygen lance and improve the service life of the device, a plurality of wear-resistant rings 3 are uniformly arranged between the adjacent vent holes 2.5 on the inner side wall of the inner side plate 2.4 of the nitrogen sealing plug,
the conicity of the base upper inner side plate 1.4, the base lower inner side plate 1.7 is the same as that of the second outer side plate 2.2 and the third outer side plate 2.8, and the inner diameter of the base upper inner side plate 1.4 and the base lower inner side plate 1.7 is the same as that of the second outer side plate 2.2 and the third outer side plate 2.8.
The inclination angle of the middle vent hole 2.5 of the utility model can be any angle between 35 degrees and 45 degrees besides 40 degrees in the embodiment.
The utility model discloses the working process is as follows:
after the oxygen lance 4 enters the converter from the lower lance opening, the nitrogen sealing plug 2 is just embedded into the base 1, the nitrogen pipe 1.1 is completely inosculated with the nitrogen inlet channel to form a closed cavity, the nitrogen valve is automatically opened, nitrogen with certain pressure enters the closed base inner cavity 1.6 and the nitrogen sealing plug inner cavity 2.7 from the nitrogen pipe 1.1 and then is sprayed out from the vent hole 2.5 of the nitrogen sealing plug 2 in a slant way, so that a plurality of layers of sealing air curtains distributed at intervals are formed in the gap between the nitrogen sealing plug 2 and the oxygen lance 4 inserted into the lower lance opening from top to bottom, high-temperature slag particles are effectively prevented from splashing out from the gap of the nitrogen sealing plug, high-temperature smoke dust is prevented from overflowing from the top of a factory building, and the nitrogen sealing effect is greatly improved.
Claims (4)
1. A converter oxygen rifle nitrogen seal device which characterized in that: the nitrogen sealing device comprises a base (1) and a nitrogen sealing plug (2), wherein the nitrogen sealing plug (2) is arranged on the inner side wall of the base (1);
the base (1) comprises two nitrogen pipes (1.1), a base outer side plate (1.2), a base top plate (1.3), a base upper inner side plate (1.4), a base bottom plate (1.5) and a base lower inner side plate (1.7), wherein the base outer side plate (1.2) is of a cylinder structure, the base top plate (1.3) and the base bottom plate (1.5) are of a circular-ring plate-shaped structure, the base upper inner side plate (1.4) and the base lower inner side plate (1.7) are of a conical cylinder structure, the upper end of the base outer side plate (1.2) is connected with the outer end of the bottom surface of the base top plate (1.3), the lower end of the base outer side plate (1.2) is connected with the outer end of the top surface of the base bottom plate (1.5), the upper end of the base upper inner side plate (1.4) is connected with the inner end of the bottom surface of the base top plate (1.3), the lower end of the base lower inner side plate (1.7) is connected with the inner end of the bottom plate (1.5, The base top plate (1.3), the base upper inner side plate (1.4), the base bottom plate (1.5) and the base lower inner side plate (1.7) jointly form a base inner cavity (1.6), a gap is formed between the lower end of the base upper inner side plate (1.4) and the upper end of the base lower inner side plate (1.7) to form a base nitrogen channel (1.8), and the two nitrogen pipes (1.1) are respectively and symmetrically arranged in the middle of the outer side wall of the base outer side plate (1.2) and communicated with the base inner cavity (1.6);
the nitrogen seal plug (2) comprises a first outer side plate (2.1), a second outer side plate (2.2), a nitrogen seal plug top plate (2.3), a nitrogen seal plug inner side plate (2.4), a nitrogen seal plug bottom plate (2.6) and a third outer side plate (2.8); the first outer side plate (2.1) and the nitrogen sealing plug inner side plate (2.4) are of a cylindrical structure, the second outer side plate (2.2) and the third outer side plate (2.8) are of a conical cylindrical structure, the nitrogen sealing plug top plate (2.3) and the nitrogen sealing plug bottom plate (2.6) are of a circular plate-shaped structure, the upper end of the first outer side plate (2.1) is connected with the outer end of the bottom surface of the nitrogen sealing plug top plate (2.3), the lower end of the first outer side plate (2.1) is connected with the upper end of the third outer side plate (2.8), the upper end of the nitrogen sealing plug inner side plate (2.4) is connected with the inner end of the bottom surface of the nitrogen sealing plug top plate (2.3), the lower end of the nitrogen sealing plug inner side plate (2.4) is connected with the inner end of the top surface of the nitrogen sealing plug bottom plate (2.6), the outer end of the top surface of the nitrogen sealing plug bottom plate (2.6) is connected with the lower end of the second side plate (2.2), a plurality of vent holes (2.5.5) which are uniformly inclined upwards, first outside plate (2.1), second outside plate (2.2), nitrogen sealing stopper roof (2.3), nitrogen sealing stopper inside plate (2.4), nitrogen sealing stopper bottom plate (2.6) and third outside plate (2.8) form nitrogen sealing stopper inner chamber (2.7) jointly, it is gapped between the lower extreme of third outside plate (2.8) and the upper end of second outside plate (2.2), form nitrogen sealing stopper nitrogen gas passageway (2.9).
2. The nitrogen sealing device for the oxygen lance of the converter as claimed in claim 1, which is characterized in that: a plurality of wear-resistant rings (3) are uniformly arranged between the adjacent vent holes (2.5) on the inner side wall of the inner side plate (2.4) of the nitrogen seal plug.
3. The nitrogen sealing device for the oxygen lance of the converter as claimed in claim 1, which is characterized in that: the inclination angle of the vent holes (2.5) is 35-45 degrees.
4. The nitrogen sealing device for the oxygen lance of the converter as claimed in claim 3, which is characterized in that: the conicity of the inner side plate (1.4) on the base, the conicity of the inner side plate (1.7) under the base and the second outer side plate (2.2) and the conicity of the third outer side plate (2.8) are the same, and the inner diameter of the inner side plate (1.4) on the base and the inner diameter of the inner side plate (1.7) under the base are the same as the outer diameter of the second outer side plate (2.2) and the outer diameter of the third outer side plate (2.8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022440733.0U CN213570567U (en) | 2020-10-28 | 2020-10-28 | Converter oxygen lance nitrogen seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022440733.0U CN213570567U (en) | 2020-10-28 | 2020-10-28 | Converter oxygen lance nitrogen seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213570567U true CN213570567U (en) | 2021-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022440733.0U Expired - Fee Related CN213570567U (en) | 2020-10-28 | 2020-10-28 | Converter oxygen lance nitrogen seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213570567U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114317878A (en) * | 2022-01-04 | 2022-04-12 | 重庆钢铁股份有限公司 | Novel converter oxygen lance nitrogen sealing device and method |
| CN115652021A (en) * | 2022-11-10 | 2023-01-31 | 九江萍钢钢铁有限公司 | Converter oxygen muzzle nitrogen seal device |
-
2020
- 2020-10-28 CN CN202022440733.0U patent/CN213570567U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114317878A (en) * | 2022-01-04 | 2022-04-12 | 重庆钢铁股份有限公司 | Novel converter oxygen lance nitrogen sealing device and method |
| CN114317878B (en) * | 2022-01-04 | 2022-11-25 | 重庆钢铁股份有限公司 | Converter oxygen lance nitrogen seal device |
| CN115652021A (en) * | 2022-11-10 | 2023-01-31 | 九江萍钢钢铁有限公司 | Converter oxygen muzzle nitrogen seal device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210629 Termination date: 20211028 |