CN219136827U - Leakage-proof refractory brick for steel tapping hole of converter - Google Patents
Leakage-proof refractory brick for steel tapping hole of converter Download PDFInfo
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- CN219136827U CN219136827U CN202223079023.5U CN202223079023U CN219136827U CN 219136827 U CN219136827 U CN 219136827U CN 202223079023 U CN202223079023 U CN 202223079023U CN 219136827 U CN219136827 U CN 219136827U
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Abstract
The utility model discloses a steel leakage prevention refractory brick for a steel tapping hole of a converter, which relates to the field of metallurgical steel plants and comprises a steel tapping hole end brick and a slag leakage prevention steel refractory brick, wherein the slag leakage prevention steel refractory brick is positioned below the steel tapping hole end brick, the bottom side of the slag leakage prevention steel refractory brick is connected with an upper steel tapping hole sliding plate, the bottom side of the upper steel tapping hole sliding plate is provided with a lower steel tapping hole sliding plate, and the bottom side of the lower steel tapping hole sliding plate is connected with an outer water outlet of the steel tapping hole. According to the utility model, the slag-leakage-proof steel refractory brick is aluminum magnesium spinel zirconium carbon, and the aluminum magnesium spinel zirconium carbon has good slag erosion resistance, anti-scouring performance, high-temperature oxidation resistance and good thermal shock resistance, is arranged below the steel outlet end brick, is connected through the first connecting component, and is matched with the lug sub-opening and the end brick groove on the first connecting component, so that the slag-leakage-proof steel refractory brick and the steel outlet end brick can be connected conveniently.
Description
Technical Field
The utility model relates to the technical field of metallurgical steel plants, in particular to a leakage-proof refractory brick for a steel tapping hole of a converter.
Background
Steel mills and refractory manufacturers aim to improve the stability of refractory materials, and certain achievements are achieved in terms of service life and accident rate and cost reduction, which contributes to the development of enterprises. With the technology upgrading and competition elimination of domestic refractory factories, the service life and stability of steel-making refractory are improved year by year, foreign products originally used by a plurality of domestic steel factories are almost completely replaced by domestic products, and the requirements of rapid development of the steel industry, such as converter tapping refractory, are completely met:
the temperature range of molten steel in the converter lining is about 1600-1680 ℃, the lining is subjected to complex mechanical scouring and strong chemical erosion reaction of severe high-temperature molten steel, airflow and slag in the service process of the converter lining, and the working environment is very bad. The furnace lining needs to maintain necessary rigidity due to long-term service, and the refractory material cannot be disintegrated and collapsed or gaps are generated in the cooling or heating process.
The tapping hole of the converter adopts magnesia carbon bricks, is a necessary passage for the outflow of molten steel qualified at the smelting end point, and has important influences on the quality control, temperature loss and smelting cost of molten steel due to the use and maintenance effects. Along with the quality improvement of the refractory varieties, the resources and the energy sources are saved, the production process is environment-friendly, the novel green concept of harmless use process is deep, and the refractory used for steelmaking is further improved.
The slag blocking steel is carried out at the converter slag blocking slide gate, the action is the same as the valve principle, under the condition of slag monitoring by infrared rays, the slide plate brick is immediately closed, the inner hole of the steel tapping hole end brick is gradually enlarged through long-time flushing aperture of molten steel, some steel seepage hidden trouble is brought to a steel mill, meanwhile, the inner hole of the steel tapping hole end brick is expanded to a certain limit value and must be replaced in advance, so that the steel tapping time of the converter is influenced, meanwhile, the consumption of refractory materials is accelerated, when the slide plate is replaced on line, an operator can clean the refractory mortar at the joint part by a crow bar for a long time or hit the joint part by an air pick, the refractory material at the joint part is seriously damaged, steel leakage accidents between the steel tapping hole end brick and the slide plate brick can often occur in an untimely manner, and hidden trouble with different degrees is brought to steelmaking.
The front outlet end brick is directly connected with the sliding plate brick, so that the labor intensity is high, the replacement times are high, and frequent slag steel leakage accidents are caused, so that the steel leakage prevention refractory brick for the converter tapping hole is required to meet the demands of people.
Disclosure of Invention
The utility model aims to provide a steel leakage preventing refractory brick for a converter tapping hole, which aims to solve the problems.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the steel-leakage-preventing refractory brick for the steel tapping hole of the converter comprises a steel tapping hole end brick and a steel-leakage-preventing refractory brick, wherein the steel-leakage-preventing refractory brick is positioned below the steel tapping hole end brick, a steel tapping hole upper sliding plate is connected to the bottom side of the steel-leakage-preventing refractory brick, a steel tapping hole lower sliding plate is installed on the bottom side of the steel tapping hole upper sliding plate, a steel tapping hole outer water gap is connected to the bottom side of the steel tapping hole lower sliding plate, the steel-leakage-preventing refractory brick is connected with the steel tapping hole end brick through a first connecting component, the steel-leakage-preventing refractory brick is connected with the steel tapping hole upper sliding plate through a second connecting component, and the steel tapping hole lower sliding plate is connected with the steel tapping hole outer water gap through a third connecting component.
Preferably, the first connecting component comprises a protruding sub-opening arranged above the slag leakage prevention steel refractory brick, an end brick groove is arranged at the bottom side of the steel tapping hole end brick, the protruding sub-opening is in an annular structure, and the protruding sub-opening is arranged in the end brick groove.
Preferably, the second connecting component comprises an upper boss arranged above the upper sliding plate of the steel tapping hole, a concave female port is arranged at the bottom side of the slag leakage prevention steel refractory brick, and the concave female port is matched with the upper boss.
Preferably, the second connecting component comprises a lower boss fixedly arranged at the bottom side of the lower slide plate of the tapping hole, a tapping hole groove is formed in the bottom side of the outer water gap of the tapping hole, and the lower boss is matched with the tapping hole groove.
Preferably, a positioning ring is arranged on the slag leakage prevention steel refractory brick, and the positioning ring is matched with the outer side of the upper boss.
Preferably, steel hoops are fixedly arranged on the outer sides of the slag leakage prevention steel refractory bricks, and are in annular structure.
Preferably, steel flowing holes are formed in the steel tapping hole end brick, the slag leakage preventing steel refractory brick, the steel tapping hole upper sliding plate, the steel tapping hole lower sliding plate and the steel tapping hole outer water gap, and the four steel flowing holes are arranged in a centering mode.
The beneficial effects of the utility model are as follows:
in the utility model, the slag-leakage-proof steel refractory brick is aluminum-magnesium spinel zirconium carbon, the aluminum-magnesium spinel zirconium carbon has better slag erosion resistance, anti-scouring performance, better high-temperature oxidation resistance and excellent thermal shock resistance stability, the slag-leakage-proof steel refractory brick is arranged below the steel tapping hole end brick and is connected through the first connecting component, the bulge sub-opening and the end brick groove on the first connecting component are matched so as to be convenient for connecting the slag-leakage-proof steel refractory brick with the steel tapping hole end brick, the slag-leakage-proof steel refractory brick is connected with the steel tapping hole upper slide plate through the second connecting component, the upper boss and the concave female opening on the second connecting component are matched and are combined with the positioning ring, the slag-leakage-proof steel refractory brick is more tightly connected with the steel tapping hole upper slide plate, the steel tapping hole lower slide plate is connected with the steel tapping hole outer water opening through the third connecting component, the steel outlet groove and the lower boss on the third connecting component are connected, after connection, steel outlet end bricks, slag-leakage-proof steel refractory bricks, steel outlet upper sliding plates, steel outlet lower sliding plates and steel outlet outer water openings are all provided with steel flowing holes which are arranged in a centering way, so that steel flows are facilitated, the slag-leakage-proof steel refractory bricks belong to bridge, transition refractory products for connecting outlet end bricks and sliding plates are connected, the slag-leakage-proof steel refractory bricks are convenient to be replaced quickly, meanwhile, the integral products of the steel outlet are not damaged, the seamless connection of the sliding plates can be completely protected, the safety coefficient is greatly improved, when the sliding plate mechanism is replaced integrally, if the expanding diameter of the slag-leakage-proof steel refractory bricks is larger, the slag-leakage-proof steel refractory bricks are peeled off seriously at the joint surfaces of the sliding plates, the new slag-proof steel refractory bricks are replaced immediately, the hidden danger of steel leakage is solved quickly, the device can be repeatedly installed and used according to the method, the resource waste is saved, the labor intensity is reduced, the efficiency is accelerated, the steel tapping safety coefficient of the converter steelmaking is improved.
Drawings
FIG. 1 is a schematic structural view of a steel leakage preventing refractory brick for a converter tap hole in a three-dimensional manner;
FIG. 2 is a schematic sectional structural view of a steel leakage preventing refractory brick for a converter tap hole;
FIG. 3 is a schematic structural view of a slag-leakage-preventing steel refractory brick in the slag-leakage-preventing steel refractory brick for the steel tapping hole of the converter;
fig. 4 is a schematic sectional structural view of a slag-leakage-preventing steel refractory brick in the slag-leakage-preventing steel refractory brick for the steel tapping hole of the converter.
In the figure: 1. tapping hole end bricks; 2. slag-leakage-proof steel refractory bricks; 3. a steel tapping hole upper slide plate; 4. a steel tapping hole lower slide plate; 5. an outer water gap of the tapping hole; 6. a steel flow hole; 7. an upper boss; 8. a concave female port; 9. a bulge sub-opening; 10. an end brick groove; 11. a positioning ring; 12. a steel hoop; 13. a steel tapping hole groove; 14. and a lower boss.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
According to the drawings 1 and 2, the steel leakage prevention refractory brick for the steel tapping hole of the converter comprises a steel tapping hole end brick 1 and a steel leakage prevention slag resistant brick 2, wherein the steel leakage prevention slag resistant brick 2 is positioned below the steel tapping hole end brick 1, the bottom side of the steel leakage prevention slag resistant brick 2 is connected with a steel tapping hole upper sliding plate 3, the bottom side of the steel tapping hole upper sliding plate 3 is provided with a steel tapping hole lower sliding plate 4, the bottom side of the steel tapping hole lower sliding plate 4 is connected with a steel tapping hole outer water gap 5, the steel leakage prevention slag resistant brick 2 is connected with the steel tapping hole end brick 1 through a first connecting component, the steel leakage prevention slag resistant brick 2 is connected with the steel tapping hole upper sliding plate 3 through a second connecting component, and the steel tapping hole lower sliding plate 4 is connected with the steel tapping hole outer water gap 5 through a third connecting component.
According to the drawings 1, 2 and 3, first coupling assembling is including installing the protruding sub-mouth 9 in the steel refractory brick 2 top of leak protection sediment, the bottom side of steel refractory brick 1 is equipped with end brick recess 10, protruding sub-mouth 9 is annular structure setting, protruding sub-mouth 9 installs in end brick recess 10, second coupling assembling is including installing the last boss 7 in steel mouth top slide 3, the bottom side of steel refractory brick 2 is equipped with concave female hole 8, concave female hole 8 cooperatees with last boss 7, second coupling assembling includes the lower boss 14 of fixed mounting in steel mouth bottom side down slide 4, the bottom side of steel mouth outer mouth 5 is equipped with steel mouth recess 13, lower boss 14 cooperatees with steel mouth recess 13, steel refractory brick 2 is aluminium magnesium spinel zirconium carbon, aluminium magnesium spinel zirconium carbon possesses better anti-slag corrosion property, anti-erosion property, better high temperature oxidation resistance and good thermal shock resistance, the steel refractory brick 2 is installed in the below of mouth end 1, and through coupling assembling top slide 2 and carry out steel mouth 2 and carry out the steel mouth that the boss is 3 with the top slide, the boss is connected with the top slide 3 through the first coupling assembling, the steel mouth is more closely is connected to the boss 2, the top of the steel mouth 2 is connected with the steel mouth 2, the top side slide mouth is connected with the steel mouth 2, the boss is more closely is connected with the steel mouth 2, the boss is connected with the top side of the steel mouth 2, the top of the steel brick is 3, the top of the steel mouth is connected with the steel brick is more closely through the steel mouth 2, and is connected with the top of the steel mouth is 3.
According to the figures 3 and 4, the positioning ring 11 is arranged on the slag-leakage-preventing steel refractory brick 2, the positioning ring 11 is matched with the outer side of the upper boss 7, the steel hoop 12 is fixedly arranged on the outer side of the slag-leakage-preventing steel refractory brick 2, the steel hoop 12 is in an annular structure, the slag-leakage-preventing steel refractory brick 2 is protected to be broken in the using process, the steel outlet end brick 1, the slag-leakage-preventing steel refractory brick 2, the steel outlet upper slide plate 3, the steel outlet lower slide plate 4 and the steel outlet outer water gap 5 are respectively provided with a steel flowing hole 6, the four steel flowing holes 6 are arranged in a centering mode, after connection, the steel outlet end brick 1, the slag-leakage-preventing steel refractory brick 2, the steel outlet upper slide plate 3, the steel outlet lower slide plate 4 and the steel outlet outer water gap 5 are respectively provided with the steel flowing holes 6, and the steel flowing holes 2 are arranged in a centering mode, so that the slag-leakage-preventing steel refractory brick 2 belongs to bridges, the slag-leakage-preventing steel refractory brick 2 is convenient to quickly replace the whole steel outlet products, the whole products can completely protect the steel outlet products, the safety coefficient is greatly improved, the slag-leakage-preventing brick can be replaced immediately, and the loss-preventing steel brick can be replaced by a new steel brick has a high-leakage-preventing mechanism when the whole steel brick is repeatedly arranged at the joint position of the steel outlet outer water gap, and the steel brick has a high cost and a high cost.
The working principle of the utility model is as follows:
in the utility model, the slag-leakage-proof steel refractory brick 2 is aluminum-magnesium spinel zirconium carbon, the aluminum-magnesium spinel zirconium carbon has better slag erosion resistance, anti-scouring performance, better high-temperature oxidation resistance and excellent thermal shock resistance, the slag-leakage-proof steel refractory brick 2 is arranged below the steel tapping hole end brick 1 and is connected through a first connecting component, a boss sub-opening 9 and an end brick groove 10 on the first connecting component are matched so as to facilitate the connection of the slag-leakage-proof steel refractory brick 2 and the steel tapping hole end brick 1, the slag-leakage-proof steel refractory brick 2 is connected with the steel tapping hole upper sliding plate 3 through a second connecting component, an upper boss 7 and a concave female opening 8 on the second connecting component are matched and are combined with a positioning ring 11, the steel slag leakage prevention steel refractory brick 2 is tightly connected with the steel slag leakage prevention steel refractory brick 3, the steel slag leakage prevention steel refractory brick 2 and the steel slag leakage prevention steel refractory brick 1 can be subjected to the scouring of high-temperature molten steel and steel slag, and can also be subjected to the erosion and penetration of alkaline slag, and after the steel slag leakage prevention steel refractory brick 1, the steel slag leakage prevention steel refractory brick 2, the steel slag leakage prevention steel refractory brick 3, the steel slag leakage prevention steel brick 4 and the steel slag leakage prevention steel refractory brick 5 are connected through the third connecting component, the steel slag leakage prevention steel refractory brick 2 and the steel slag leakage prevention steel refractory brick 5 are all provided with steel holes 6 in a centering manner, so that the steel slag leakage prevention steel refractory brick 2 and the steel slag leakage prevention steel refractory brick 1 can be subjected to the baking impact oxidation of high Wen Lieyan in the converter smelting process; the steel brick 2 can withstand high-temperature strong thermal shock impact from hundreds of degrees to 1650 ℃ when discontinuously tapping, belongs to a bridge, and is a transitional refractory product for connecting an outlet end brick and a sliding plate brick, wherein the service life of the steel brick 2 at a tapping hole end brick 1 is 120-150, the service life of the steel brick 2 at the slag preventing end brick is 40-50, the service life of the sliding plate brick is 10-15, the steel brick 2 is not high, the steel brick 2 is convenient to replace rapidly, the integral product at the tapping hole is not damaged, the seamless connection of the sliding plate can be completely protected, the safety coefficient is greatly improved, the steel brick 2 is made of high-temperature resistant, corrosion resistant and high-density high-purity inorganic refractory raw materials, corundum, zirconia corundum, magnesia, active a-Al2O3 micro powder and carbon black are mixed according to the particle: 13:7, a liquid bonding agent is added, a forming hydraulic press is formed at 1000 tons, then the sliding plate mechanism is dried for 36 hours, if the steel brick 2 is expanded in diameter and the integral sliding plate mechanism is replaced, the slag preventing brick 2 is severely peeled off from the joint surface, the steel brick is replaced rapidly, the hidden danger of the steel brick is reduced, the steel brick is replaced rapidly, the steel leakage is saved, the safety coefficient is improved, the steel leakage is saved, the steel consumption is reduced, and the steel consumption is increased.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (7)
1. The steel leakage preventing refractory brick for the steel tapping hole of the converter comprises a steel tapping hole end brick (1) and a slag leakage preventing steel refractory brick (2), and is characterized in that: the steel tapping hole is characterized in that the slag leakage prevention steel refractory brick (2) is located below the steel tapping hole end brick (1), a steel tapping hole upper sliding plate (3) is connected to the bottom side of the slag leakage prevention steel refractory brick (2), a steel tapping hole lower sliding plate (4) is installed on the bottom side of the steel tapping hole upper sliding plate (3), a steel tapping hole outer water gap (5) is connected to the bottom side of the steel tapping hole lower sliding plate (4), the slag leakage prevention steel refractory brick (2) is connected with the steel tapping hole end brick (1) through a first connecting component, the slag leakage prevention steel refractory brick (2) is connected with the steel tapping hole upper sliding plate (3) through a second connecting component, and the steel tapping hole lower sliding plate (4) is connected with the steel tapping hole outer water gap (5) through a third connecting component.
2. The converter tap hole leak-proof steel refractory brick of claim 1, wherein: the first connecting assembly comprises a protruding sub-opening (9) arranged above the slag leakage prevention steel refractory brick (2), an end brick groove (10) is formed in the bottom side of the steel tapping hole end brick (1), the protruding sub-opening (9) is arranged in an annular structure, and the protruding sub-opening (9) is arranged in the end brick groove (10).
3. The converter tap hole leak-proof steel refractory brick of claim 1, wherein: the second connecting assembly comprises an upper boss (7) arranged above the steel tapping hole upper sliding plate (3), a concave female opening (8) is arranged at the bottom side of the slag-leakage-proof steel refractory brick (2), and the concave female opening (8) is matched with the upper boss (7).
4. The converter tap hole leak-proof steel refractory brick of claim 1, wherein: the second connecting component comprises a lower boss (14) fixedly arranged at the bottom side of the steel tapping hole lower slide plate (4), a steel tapping hole groove (13) is formed in the bottom side of the steel tapping hole outer water gap (5), and the lower boss (14) is matched with the steel tapping hole groove (13).
5. The converter tap hole leak-proof steel refractory brick according to claim 3, wherein: the slag leakage prevention steel refractory brick (2) is provided with a positioning ring (11), and the positioning ring (11) is matched with the outer side of the upper boss (7).
6. The converter tap hole leak-proof steel refractory brick of claim 1, wherein: the steel hoops (12) are fixedly arranged on the outer sides of the slag leakage-proof steel refractory bricks (2), and the steel hoops (12) are in an annular structure.
7. The converter tap hole leak-proof steel refractory brick of claim 1, wherein: the steel tapping hole end brick (1), the slag leakage prevention steel refractory brick (2), the steel tapping hole upper sliding plate (3), the steel tapping hole lower sliding plate (4) and the steel tapping hole outer water gap (5) are respectively provided with a steel flowing hole (6), and the four steel flowing holes (6) are arranged in a centering way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223079023.5U CN219136827U (en) | 2022-11-18 | 2022-11-18 | Leakage-proof refractory brick for steel tapping hole of converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223079023.5U CN219136827U (en) | 2022-11-18 | 2022-11-18 | Leakage-proof refractory brick for steel tapping hole of converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219136827U true CN219136827U (en) | 2023-06-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223079023.5U Active CN219136827U (en) | 2022-11-18 | 2022-11-18 | Leakage-proof refractory brick for steel tapping hole of converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219136827U (en) |
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2022
- 2022-11-18 CN CN202223079023.5U patent/CN219136827U/en active Active
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