CN201512553U - Steel leak-proof steel ladle air permeable brick - Google Patents
Steel leak-proof steel ladle air permeable brick Download PDFInfo
- Publication number
- CN201512553U CN201512553U CN2009202498957U CN200920249895U CN201512553U CN 201512553 U CN201512553 U CN 201512553U CN 2009202498957 U CN2009202498957 U CN 2009202498957U CN 200920249895 U CN200920249895 U CN 200920249895U CN 201512553 U CN201512553 U CN 201512553U
- Authority
- CN
- China
- Prior art keywords
- brick
- core
- steel
- half part
- cup
- Prior art date
- 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 - Fee Related
Links
Images
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The utility model relates to a ladle bottom-blowing air permeable brick in iron and steel industry, in particular to a ladle bottom-blowing air permeable brick capable of effectively preventing steel from being leaked. The lower half part of a brick core is bold. The diameter of the head part of the lower half part is 20mm to 50mm larger than the diameter of the tail part of the upper half part. A boss is formed at the connection place of the lower half part and the upper half part. Preferably, the height of the lower half part does not exceed the lower limit of the safe working height of the air permeable brick. The taper of the upper part and the taper of the lower part are not always the same. However, the dimension and the taper of the holes in the brick core and dimension and the taper of the holes in a brick cup are proper. The boss can change the movement trail of molten steel moving downward along a gap between the brick core and the brick cup and prolong the movement route of the molten steel, so the probability that the molten steel is leaked because the molten steel moves downward along the gap between the brick core and the brick cup is reduced at a certain extent. Moreover, since the diameter of the lower half part of the brick core becomes larger, the probability that the brick core is pulled out from the brick cup when the air permeable brick is in use is reduced and the use safety performance is improved correspondingly.
Description
Affiliated technical field
The utility model relates to a kind of iron and steel metallurgical industry ladle bottom blowing gas permeable brick, particularly relates to a kind of ladle bottom blowing gas permeable brick that can effectively prevent bleed-out.
Background technology
In iron and steel metallurgical industry, after the molten steel that steel melting furnace is smelted enters ladle, use gas permeable brick to be blown into argon gas and molten steel is stirred to quicken to realize metallurgical process, homogenizing liquid steel temperature and chemical ingredients from ladle bottom, promote inclusion removal or control inclusion morphology, shorten the liquid steel refining time.
Air brick of steel ladle generally includes brick core and brick cup two portions.The brick core comprises brick core body refractory materials, be welded on steel bushing around the brick core body refractory materials, fill the refractory mortar in slit between brick core body refractory materials and the steel bushing, weld together with steel bushing one end metal cover board and a metal tracheae that is connected together with bridge welding, the metal tracheae is connected with external air source, and the profile of brick core is the taper shape with certain taper.Brick cup is made by refractory materials, and its profile is generally cylindrical or cubic cylindricality, inside have one with brick core size and the suitable conical hole of tapering.Conical brick core places the synthetic gas permeable brick of the conical hole make-up unit of brick cup.
The air brick of steel ladle effect of suffering erosion in use can constantly shorten, cause bleed-out for preventing that invar bag gas permeable brick from excessively using, iron and steel metallurgy enterprise has been stipulated the safe handling height of matching used bottom-blown air brick to reach following just the stopping using of safe handling height in limited time when the residual altitude of gas permeable brick according to the service condition of dissimilar ladles.
The brick core of present employed air brick of steel ladle and the contact surface between the brick cup are that straight line connects, in the use if between brick core and the brick cup gap become big situation, may cause molten steel along the descending generation bleed-out of the slit straight line accident between the two; In addition, generally, the internal diameter of the conical hole of conical brick core external diameter and brick cup inside all is up-small and down-big, can prevent that the brick core is blown out in brick cup by argon gas in the use, but, the conical hole of brick cup in use suffers erosion and can produce hole enlargement, and conical hole microcephaly's the internal diameter that brick cup may occur causes the brick core to be blown out the bleed-out accident that takes place by argon gas in brick cup than the big situation of external diameter of brick core major part.
Summary of the invention
The utility model proposes a kind of air brick of steel ladle that can effectively prevent bleed-out.Its concrete technical scheme is:
(1) with lower part overstriking of gas permeable brick brick core, the diameter of lower part head is good than the big 20～50mm of diameter of upper part afterbody with 30mm, forms one boss in upper and lower two-part junction.
(2) height of brick core lower part is advisable with the lower limit that is no more than gas permeable brick and satisfies ladle safe handling height, is generally 40～200mm.
(3) the upper and lower two portions cone of brick core be up-small and down-big, its tapering can be identical also can be inequality, but the size of the inner hole of brick cup is suitable mutually with the brick core with tapering.
The beneficial effects of the utility model are: the junction of two portions up and down of the brick core of gas permeable brick forms a boss, the existence of boss, make brick core and brick cup contact surface bent by straight change, movement locus in the time of can changing molten steel the slit is descending between brick core and brick cup, prolong the moving line of molten steel, thereby reduced molten steel to a certain extent along the descending probability that causes bleed-out in the slit between brick core and the brick cup.On the other hand, it is big that brick core lower part diameter becomes, and reduced the probability that brick core in the gas permeable brick use is blown out in the brick cup by argon gas, the corresponding raising of usage safety performance.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 is a kind of gas permeable brick diagrammatic cross-section of the present utility model.
Mark is expressed as among the figure: 1-brick cup, 2-brick core, 3-steel bushing, 4-refractory mortar, 5-metal cover board, 6-metal tracheae
Embodiment
With reference to Fig. 1, by vibratory compaction refractory castable is prefabricated into the refractory aggregate that lower part has the brick core 2 of boss, around the refractory aggregate of brick core 2, wrap steel bushing 3, fill the refractory aggregate of brick core 2 and the slit between the steel bushing 3 with refractory mortar 4, the refractory aggregate afterbody that metal cover board 5 is adjacent to brick core 2 is placed and is welded together with steel bushing 3, at the centre of metal cover board 5 welding metal tracheae 6, make brick core 2.
Can the brick cup refractory materials be taken shape in brick core 2 make gas permeable brick on every side directly with the core rod of brick core 2 as the inside hole of brick cup 1.Also can use with brick core 2 sizes and the suitable mould of tapering and make the prefabricated brick cup 1 of inner core, then brick core 2 be placed brick cup 1 inside holes to be assembled into gas permeable brick.
With reference to Fig. 1, the brick core 2 of gas permeable brick and the contact surface between the brick cup 1 are bent by straight change, and the molten steel route descending along the slit between the two prolongs and become tortuous, can reduce the probability of bleed-out to a certain extent.On the other hand, it is big that brick core 2 lower part diameters become, and reduced the probability that brick core 2 in the gas permeable brick use is blown out in the brick cup 1 by argon gas, the corresponding raising of usage safety performance.
Claims (3)
1. anti-bleed-out air brick of steel ladle, the brick core profile that it is characterized in that it is the two sections taper shape that has boss, the size of the inner hole of brick cup suits with the brick core mutually with tapering.
2. a kind of anti-bleed-out air brick of steel ladle according to claim 1 is characterized in that its diameter of head of lower part is bigger than the diameter of upper part afterbody, forms one boss in two-part junction.
3. a kind of anti-bleed-out air brick of steel ladle according to claim 1 is characterized in that the height of its brick core lower part is no more than the lower limit that gas permeable brick satisfies ladle safe handling height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202498957U CN201512553U (en) | 2009-10-16 | 2009-10-16 | Steel leak-proof steel ladle air permeable brick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202498957U CN201512553U (en) | 2009-10-16 | 2009-10-16 | Steel leak-proof steel ladle air permeable brick |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201512553U true CN201512553U (en) | 2010-06-23 |
Family
ID=42483961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202498957U Expired - Fee Related CN201512553U (en) | 2009-10-16 | 2009-10-16 | Steel leak-proof steel ladle air permeable brick |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201512553U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179491A (en) * | 2011-04-08 | 2011-09-14 | 莱芜钢铁集团有限公司 | Argon-blowing prefabricated member for continuous casting tundish cover |
-
2009
- 2009-10-16 CN CN2009202498957U patent/CN201512553U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179491A (en) * | 2011-04-08 | 2011-09-14 | 莱芜钢铁集团有限公司 | Argon-blowing prefabricated member for continuous casting tundish cover |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100522882C (en) | Fire resistive material for desulfurization spray gun and producing technique for the desulfurization spray gun | |
| KR20110138145A (en) | Measuring probes for measuring and taking samples with a metal melt | |
| JP2010116611A (en) | Method for manufacturing low-sulfur thick steel plate excellent in haz toughness at the time of inputting large amount of heat | |
| CN201512553U (en) | Steel leak-proof steel ladle air permeable brick | |
| CN110616293A (en) | Method for adding rare earth into molten steel | |
| CN202845767U (en) | Steel ladle purification bottom blowing integral air brick | |
| CN109909460B (en) | Production method of ingot mold for ultra-pure special steel | |
| CN209681149U (en) | A kind of steady flow condition submersed nozzle | |
| JP5082700B2 (en) | Steel continuous casting method | |
| CN205183761U (en) | Ladle package end pouring structure | |
| JP4815821B2 (en) | Continuous casting method of aluminum killed steel | |
| JPH01319623A (en) | Production of clean steel | |
| CN202214380U (en) | Molten steel wire feeding device | |
| CN205888060U (en) | Steel ladle bottom bleeder vent | |
| CN202639314U (en) | Long-life seating brick of steel ladle ventilation brick | |
| KR100742837B1 (en) | Plug for Refining Bubbling and Ladle having The Same | |
| CN203170951U (en) | Pocket block of steel ladle air brick | |
| CN204975307U (en) | Steel ladle | |
| CN216192476U (en) | Steel-making ladle capable of improving bottom blowing air permeability | |
| CN202639311U (en) | Melted iron tank | |
| CN216192473U (en) | Novel three-stripping spray gun for pretreatment of molten iron in composite material pouring | |
| JP3719605B2 (en) | Construction method of uncoated refractories for lance pipes by horizontal casting. | |
| CN218860778U (en) | Integral desulfurization spray gun | |
| JP5510476B2 (en) | Injection tube | |
| CN201906820U (en) | Anti-bleeding ladle integrated air brick |
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: 20100623 Termination date: 20141016 |
|
| EXPY | Termination of patent right or utility model |