CN202097396U - Breakout-proof rotary slit type combination purging plug - Google Patents
Breakout-proof rotary slit type combination purging plug Download PDFInfo
- Publication number
- CN202097396U CN202097396U CN2011201192299U CN201120119229U CN202097396U CN 202097396 U CN202097396 U CN 202097396U CN 2011201192299 U CN2011201192299 U CN 2011201192299U CN 201120119229 U CN201120119229 U CN 201120119229U CN 202097396 U CN202097396 U CN 202097396U
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- purging plug
- air brick
- breakout
- slit
- plug body
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Abstract
A breakout-proof rotary slit type combination purging plug comprises a purging plug body. A diffusion type air base is connected to the lower side of the purging plug body, an iron sheet covers the purging plug body outside, and a high-temperature wear-resistant ceramic tube is arranged in the purging plug body. A slit ventilation passage in a rotary type is arranged in the high-temperature wear-resistant ceramic tube, an air chamber is reserved between the purging plug body and the diffusion type air base, and another air chamber is also reserved between the diffusion type air base and the iron sheet. The breakout-proof rotary slit type combination purging plug is low in manufacturing cost and high in efficiency, erosion resistance and scouring resistance of the purging plug can be improved under protection of the high-temperature wear-resistant ceramic tube, and thereby the service life of the purging plug is prolonged. Gas blown from the rotary slit ventilation passage is unsteady in direction, so that molten steel can be stirred more fully to facilitate upward floating of steel slag. The breakout accident can be prevented through the diffusion type air base.
Description
Technical field
The utility model relates to anti-bleed-out rotation of a kind of long-life slit combination air brick, and is specifically a kind of in the high-temperature molten steel preliminary treatment, through this functor blowing gas, realizes stirring molten steel composition, make liquid steel temperature evenly, the slag come-up.
Background technology
Air brick is one of important refractory material of refined steel ladles.At present, in steel smelting procedure, adopt the method for gas agitation to make molten steel composition and temperature even mostly, promote foreign material come-up in the molten steel, improve the quality of steel.And the stirring gas that is fed (generally adopting argon gas) is fed by ladle bottom just through this functional refractory spare of air brick, and realization is stirred to the high-temperature molten steel in the ladle.
Air brick will bear the erosion of high-temperature molten steel and the effect of acutely washing away in the ladle refining process; Temperature in steel ladle casting finishes the back ladle descends simultaneously; The temperature difference is bigger; The huge temperature difference makes and produces thermal stress in the air brick, causes the air brick crackle to peel off, and air brick also must possess high ventilation performance and the ability that prevents molten steel infiltration in addition.And in recent years, along with smelting the development of production technology and improving constantly of kind and quality requirement, brick is asynchronous service life at the bottom of the service life of air brick and the ladle, need change air brick in process of production, has reduced the ladle utilization rate; Ladle after the replacing also needs preheating again, has increased the coal gas use amount, has promptly increased smelting cost; Bleed-out is the accident that steel mill firmly stops in the air brick use.Therefore, further improve the service life of air brick, increase its stirring capacity, prevent that work sutdies such as air brick bleed-out from being very important molten steel.
Summary of the invention
In order to solve the problem of above-mentioned existence, the utility model provides a kind of anti-bleed-out rotation slit combination air brick.This air brick long service life, thus the ladle utilization rate improved.
The utility model is realized through following technical scheme: a kind of anti-bleed-out rotation slit combination air brick; Comprise air brick body; Below air brick body, be connected with the ventilative base of diffusion-type; Outside air brick body, be surrounded by iron sheet, it is characterized in that: in air brick body, be provided with the high temperature wear resistant ceramic pipe.
In the high temperature wear resistant ceramic pipe, be provided with the slit gas-permeable channels.
Described slit gas-permeable channels is revolving.
Between air brick body and ventilative base one air chamber is arranged.
Between ventilative base and iron sheet one air chamber is arranged.
The beneficial effect of the utility model: owing in air brick body, be provided with the high temperature wear resistant ceramic pipe; Have good anti-ly wash away, anti-erosion and better heat-resisting shake spalling resistance; Its inside gas-permeable channels has been played good protective action, thereby improved greatly its service life; The slit gas-permeable channels is revolving, and the swirling eddy direction is unfixing, and is the outer shape of loosing, and has increased the lifting surface area of high-temperature molten steel, can impel liquid steel temperature and homogenization of composition more broadly, and favourable bits come-up; Between air brick body and ventilative base, be respectively equipped with air chamber between ventilative base and the iron sheet, can make the air-flow that sprays into be evenly distributed to each bar slit gas-permeable channels more, thereby guarantee that the air-flow that is gone out by slit blow is uniform and stable; Whole slit air brick body is through moulding by casting, and the ventilative base of diffusion-type adopts more low-grade material through mechanical pressing, and production technology is simple and reduce production costs, and has played the generation that prevents the abominable accident of bleed-out.
Description of drawings
Fig. 1 is the sectional view of the anti-bleed-out rotation of the utility model slit combination air brick.
The specific embodiment
The anti-bleed-out rotation slit combination air brick of present embodiment comprises air brick body 1, below air brick body 1, is connected with the ventilative base 4 of diffusion-type; Outside air brick body 1, be surrounded by iron sheet 5; Rotation slit air brick body 1 is combined closely through iron sheet 5 with the ventilative base 4 of diffusion-type, and wherein air brick body 1 all burns till through high temperature earlier with the ventilative base 4 of diffusion-type, and quality is fine and close more; Intensity is higher, and performance is also more stable.At air brick body 1 set inside high temperature wear resistant ceramic pipe 3, in high temperature wear resistant ceramic pipe 3, be provided with rotary slit gas-permeable channels 2, adopt the high alumina refractory casting material that high temperature wear resistant ceramic pipe 3 and rotary slit gas-permeable channels 2 are combined closely, be integrally formed.The outer diffusing shape non-directional air-flow that gases at high pressure are jetted and through rotary slit gas-permeable channels 2, stronger to the stirring capacity of molten steel, the utmost point advantageously promotes liquid steel temperature, homogenization of composition and slag come-up; Through adopting high temperature wear resistant ceramic pipe 3; Because it has stronger high temperature resistant molten steel performance of flushing, stronger corrosion-resistant property, stronger anti-thermal shock spalling resistance and is difficult for wetting characteristics; Air brick body is played good protective action, significantly improved the service life of air brick.At air brick body 1 and 4 of ventilative bases an air chamber 6 is arranged; Ventilative base 4 and 5 on iron sheet have an air chamber 7.Two air chambers 6,7 are distributed in the rotary slit gas-permeable channels air-flow that sprays into more equably, thereby have guaranteed that the gas of jetting is more even; And the bar number of rotary slit gas-permeable channels 2 can use needs to increase and decrease according to the scene.
Obviously; The foregoing description only is a case of operating for clearer explanation the utility model; And be not to be the qualification to the utility model embodiment; For a person skilled in the art, can also on this instance basis, make other multi-form change or improvement, and those conspicuous changes of amplifying out with the spirit of the utility model perhaps improvement still belong within the protection domain of claim of the utility model.
Claims (5)
1. an anti-bleed-out rotation slit combination air brick comprises air brick body, below air brick body, is connected with the ventilative base of diffusion-type, outside air brick body, is surrounded by iron sheet, it is characterized in that: in air brick body, be provided with the high temperature wear resistant ceramic pipe.
2. according to the described a kind of anti-bleed-out rotation slit combination air brick of claim 1, it is characterized in that: in the high temperature wear resistant ceramic pipe, be provided with the slit gas-permeable channels.
3. according to the described a kind of anti-bleed-out rotation slit combination air brick of claim 2, it is characterized in that: described slit gas-permeable channels is revolving.
4. according to claim 1 or 2 described a kind of anti-bleed-out rotation slit combination air bricks, it is characterized in that: between air brick body and ventilative base one air chamber is arranged.
5. according to claim 1 or 2 or 3 described a kind of anti-bleed-out rotation slit combination air bricks, it is characterized in that: between ventilative base and outsourcing iron sheet one air chamber is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201192299U CN202097396U (en) | 2011-04-21 | 2011-04-21 | Breakout-proof rotary slit type combination purging plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201192299U CN202097396U (en) | 2011-04-21 | 2011-04-21 | Breakout-proof rotary slit type combination purging plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202097396U true CN202097396U (en) | 2012-01-04 |
Family
ID=45383429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201192299U Expired - Fee Related CN202097396U (en) | 2011-04-21 | 2011-04-21 | Breakout-proof rotary slit type combination purging plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202097396U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103382526A (en) * | 2013-05-09 | 2013-11-06 | 中南大学 | Direct lead-smelting reducing furnace gas-injection method and device thereof |
| CN113199019A (en) * | 2021-05-19 | 2021-08-03 | 洛阳全通窑业有限公司 | Slit air flue air brick and production method thereof |
-
2011
- 2011-04-21 CN CN2011201192299U patent/CN202097396U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103382526A (en) * | 2013-05-09 | 2013-11-06 | 中南大学 | Direct lead-smelting reducing furnace gas-injection method and device thereof |
| CN113199019A (en) * | 2021-05-19 | 2021-08-03 | 洛阳全通窑业有限公司 | Slit air flue air brick and production method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120104 Termination date: 20140421 |