CN205662535U - A bottom blowing air brick for ladle refining - Google Patents
A bottom blowing air brick for ladle refining Download PDFInfo
- Publication number
- CN205662535U CN205662535U CN201620550570.2U CN201620550570U CN205662535U CN 205662535 U CN205662535 U CN 205662535U CN 201620550570 U CN201620550570 U CN 201620550570U CN 205662535 U CN205662535 U CN 205662535U
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- brick
- air
- refractory brick
- refractory
- slit
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Abstract
The utility model relates to a bottom blowing air brick for ladle refining. Its technical scheme is: the inner wall of hugging closely rectangular frame is fixed with bar -shaped boss (7), has built 2~8 resistant firebrick (1) on bar -shaped boss (7) by laying bricks or stones, and it has resistant chamotte thick liquid (3) to bond between resistant firebrick (1), and resistant firebrick (1) is equipped with independent channel ventilative slit (2) or bleeder vent (8), be fixed with in sleeve pipe (6) that base (4) central point department of putting was fixed air supply pipe (5) concentricityly. Ventilative slit (2): the width is 0.15~0.20mm, and length is 2~100 times of the width, and centre -to -centre spacing is 25~50mm, the slit area with the area of resistant firebrick (1) upper surface is than being 1: (125~300). Bleeder vent (8): the diameter is 0.15~0.20mm, and centre -to -centre spacing is 25~50mm, the hole area with the area of resistant firebrick (1) upper surface is than being 1: (200~500). The utility model has the characteristics of installation easy maintenance, excellent in use effect and long service life.
Description
Technical field
This utility model belongs to the air brick technical field for ladle refining.It is specifically related to a kind of for ladle refining
Bottom-blown air brick.
Background technology
In casting finished product (continuous casting semi-finished product or large-scale steel ingot), the quality of steel is had significantly by non-metallic inclusion content
Impact.Therefore, the main task of iron and steel enterprise is to produce non-metallic inclusion (aluminosilicate, calcium aluminate, and other complexity
Non-metallic inclusion) the alap finished product of content, thus produce and ultrasonic examination or anti-hydrogen induced cracking wanted
Seek the product day by day improved, for shipbuilding, deepwater work metal platform, bridge construction, work high above the ground metal platform, oil and sky
The fields such as right feed channel.
There are some researches show, in molten steel, be blown into argon, the effect of refining liquid steel can be played: can effectively remove nonmetal folder
Foreign material, the gas removing dissolving and strengthening decarburization.Being blown into argon in molten steel, the Argon Bubble of generation can be attached to nonmetal folder
On foreign material, and owing to there is pressure reduction between molten steel and bubble, this causes the non-metallic inclusion in molten steel can float to molten steel
The molten slag layer on surface.Little Argon Bubble in molten steel can play the effect of " little vacuum chamber ", and the dissolved gas (H, N, O) in molten steel will
The most incoming in it, discharge of floating therewith, thus reduce the gas content in molten steel, improve steel quality.
Often there is air brick slot ends and there is thermal stress concentration and cause in existing ladle argon-blown refine air brick
Crack, make monoblock air brick scrap.Or structure is complicated, easy-maintaining is not changed.
" a kind of arcuate slots air brick " (CN203295550U) patented technology, by using the arcuate slots of radiation profiles
Structure, it is to avoid the thermal stress-cracking phenomenon of slot ends, but cannot obtain uniform Argon Bubble, and Argon Bubble size cannot
Control, be unfavorable for using fine Argon Bubble technology refining liquid steel.
" air brick " (CN204174227U) patented technology, though obtaining greatly and the more uniform bubble population of distribution, but
Structure is sufficiently complex, and core parts, easily by molten steel, receive impact service life, and owing to structure complexity changes inconvenience, if
Integral replacing is also required to stop production and cause waste.
Currently used ladle argon-blown refine air brick is difficult to take into account long service life and obtain equally distributed
The effect of Argon Bubble group.
Summary of the invention
This utility model is intended to overcome the deficiencies in the prior art, it is therefore an objective to provide a kind of convenient to install and maintain, using effect
Get well and the bottom-blown air brick for ladle refining of length in service life.
For achieving the above object, the technical solution adopted in the utility model is: described air brick include refractory brick, base and
Air supply pipe.Described base is to be fixed with rectangular frame at the periphery of rectangular base plate, and the inwall being close to rectangular frame is provided with bar shaped
Boss, bar shaped boss is positioned at the upper plane of rectangular base plate, and the height of described bar shaped boss and the aspect ratio of rectangular frame are 1: (2 ~
3).Having built refractory brick on bar shaped boss by laying bricks or stones, refractory brick is 2 ~ 8 pieces, is bonded with refractory wass, every block of refractory brick between every block of refractory brick
It is provided with ventilative slit or air-vent.The center position of the rectangular base plate of base is fixed with sleeve pipe, and the upper end of air supply pipe is concentricity
Be fixed in described sleeve pipe.
Described ventilative slit is autonomous channel, and the width of ventilative slit is 0.15 ~ 0.20mm, a length of width of ventilative slit
2 ~ 100 times of degree, the centre-to-centre spacing between adjacent ventilative slit is 25 ~ 50mm, and the slit area of described ventilative slit is fire-resistant with described
The area ratio of brick upper surface is 1: (125 ~ 300)；A diameter of 0.15 ~ 0.20mm of described air-vent, the center of adjacent air-vent
It is 1 away from the area ratio for 25 ~ 50mm, the hole area of described air-vent and described refractory brick upper surface: (200 ~ 500).
The aspect ratio of the height of described refractory wass and described refractory brick is 1: (4 ~ 6), the thickness of described refractory wass with
The aspect ratio of described refractory brick is 1: (4 ~ 5).
Owing to using technique scheme, this utility model compared with prior art has a following good effect:
(1) refractory brick of the present utility model uses ventilative slit or air-vent, can produce when Argon a diameter of 5mm or
Less fine Argon Bubble, plays the effect of " little vacuum chamber ", and the dissolved gas (H, N, O) in molten steel is by continuous incoming fine argon
In bubble, discharge of floating therewith, thus reduce the gas content in molten steel, improve steel product quality.
(2) the fine Argon Bubble group that this utility model is obtained has a very wide distribution, and good dispersion, every cubic metre of bubble
Quantity >=2 × 106Individual, good impurity removing effect, save Argon cost, by liquid steel refining level improve to state of the art 1.2 ~
1.5 times, reduce the viscosity of molten steel, improve the castability of 10 ~ 15%, reduce casting billet surface cleaning rate 15 ~ 30%, using effect
Good.
(3) this utility model refractory wass between refractory brick is arranged above inhibition district, fills pouring materialfor steel ladle, subtract during installation
Light molten steel to the erosion of refractory brick and decrease air brick the weakening to ladle bottom intensity is installed.Make the use of air brick
Life is to 1.2 ~ 1.5 times of existing level, and can be individually replaced when certain block refractory brick is impaired, easy to maintenance, uses the longevity
Life is long.
(4) this utility model can according to the quantity of the different adjustment refractory brick of the structure of ladle bottom and ladleful and
Arrangement.And the installation of air brick will not destroy the integrity of ladle, it is not necessary to ladle is reequiped.Whole installation process is the most square
Just: when air brick is installed to ladle, brick cup installation site is positioned initially with centering jig, it is ensured that brick cup and compacting machine
The axiality of structure, to ensure the axiality of air brick and hold-down mechanism substrate；Installation tool is inserted air brick air supply pipe, level
Insert brick cup hole, it is ensured that brick cup and the axiality of air brick.
Therefore, this utility model have convenient to install and maintain, using effect good and the feature of length in service life.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model；
Fig. 2 is the schematic top plan view of the ventilative narrow slit structure of Fig. 1；
Fig. 3 is the schematic top plan view of the breather hole structure of Fig. 1；
Fig. 4 is the position view of the base 4 in Fig. 1 and boss 7；
Fig. 5 is the top view of Fig. 4.
Detailed description of the invention
The utility model will be further described with detailed description of the invention below in conjunction with the accompanying drawings, not to its protection domain
Restriction.
Embodiment 1
A kind of bottom-blown air brick for ladle refining.Described air brick as depicted in figs. 1 and 2, including refractory brick 1, the end
Seat 4 and air supply pipe 5.Described base 4 as shown in Figure 1, Figure 2, shown in Fig. 4 and Fig. 5, be at the periphery of rectangular base plate, be fixed with rectangle frame
Frame, the inwall being close to rectangular frame is provided with bar shaped boss 7, and bar shaped boss 7 is positioned at the upper plane of rectangular base plate, described bar shaped boss
The height of 7 and the aspect ratio of rectangular frame are 1: (2 ~ 3).As it is shown in figure 1, built refractory brick 1, refractory brick 1 on bar shaped boss 7 by laying bricks or stones
It is 4 pieces, between every block of refractory brick 1, is bonded with refractory wass 3.As in figure 2 it is shown, every block of refractory brick 1 is provided with ventilative slit 2.As Fig. 1,
Shown in Fig. 4 and Fig. 5, the center position of the rectangular base plate of base 4 is fixed with sleeve pipe 6, and the upper end of air supply pipe 5 is fixed concentrically
In described sleeve pipe 6.
As depicted in figs. 1 and 2, described ventilative slit 2 is autonomous channel, and the width of ventilative slit 2 is 0.15 ~ 0.18mm,
2 ~ 20 times of a length of width of ventilative slit 2, the centre-to-centre spacing between adjacent ventilative slit 2 is 25 ~ 40mm, described ventilative slit 2
The area ratio of slit area and described refractory brick 1 upper surface be 1: (125 ~ 250).
As it is shown in figure 1, the aspect ratio of the height of described refractory wass 3 and described refractory brick 1 is 1: (5 ~ 6), described fire-resistant
The thickness of mud 3 is 1 with the aspect ratio of described refractory brick 1: (4 ~ 5).Refractory wass 3 between refractory brick 1 is arranged above inhibition district,
Pouring materialfor steel ladle is filled, to alleviate the molten steel installation to the erosion of refractory brick 1 and minimizing air brick to Ladle Bottom during in order to install
The weakening of portion's intensity.
Embodiment 2
A kind of bottom-blown air brick for ladle refining.Described air brick as depicted in figs. 1 and 2, including refractory brick 1, the end
Seat 4 and air supply pipe 5.Described base 4 as shown in Figure 1, Figure 2, shown in Fig. 4 and Fig. 5, be at the periphery of rectangular base plate, be fixed with rectangle frame
Frame, the inwall being close to rectangular frame is provided with bar shaped boss 7, and bar shaped boss 7 is positioned at the upper plane of rectangular base plate, described bar shaped boss
The height of 7 and the aspect ratio of rectangular frame are 1: (2 ~ 3).As it is shown in figure 1, built refractory brick 1, refractory brick 1 on bar shaped boss 7 by laying bricks or stones
It is 2 ~ 3 pieces or 5 ~ 8 pieces, between every block of refractory brick 1, is bonded with refractory wass 3.As in figure 2 it is shown, every block of refractory brick 1 is provided with ventilative slit
2.As shown in Figure 1, Figure 4 and Figure 5, the center position of the rectangular base plate of base 4 is fixed with sleeve pipe 6, during the upper end of air supply pipe 5 is same
Heart is fixed in described sleeve pipe 6.
As depicted in figs. 1 and 2, described ventilative slit 2 is autonomous channel, and the width of ventilative slit 2 is 0.17 ~ 0.20mm,
20 ~ 100 times of a length of width of ventilative slit 2, the centre-to-centre spacing between adjacent ventilative slit 2 is 35 ~ 50mm, described ventilative slit
The slit area of 2 is 1 with the area ratio of described refractory brick 1 upper surface: (150 ~ 300).
As it is shown in figure 1, the aspect ratio of the height of described refractory wass 3 and described refractory brick 1 is 1: (4 ~ 5), described fire-resistant
The thickness of mud 3 is 1 with the aspect ratio of described refractory brick 1: (4 ~ 5).Refractory wass 3 between refractory brick 1 is arranged above inhibition district,
Pouring materialfor steel ladle is filled, to alleviate the molten steel installation to the erosion of refractory brick 1 and minimizing air brick to Ladle Bottom during in order to install
The weakening of portion's intensity.
Embodiment 3
A kind of bottom-blown air brick for ladle refining.Described air brick as shown in figures 1 and 3, including refractory brick 1, the end
Seat 4 and air supply pipe 5.Described base 4, as shown in Fig. 1, Fig. 3, Fig. 4 and Fig. 5, is to be fixed with rectangle frame at the periphery of rectangular base plate
Frame, the inwall being close to rectangular frame is provided with bar shaped boss 7, and bar shaped boss 7 is positioned at the upper plane of rectangular base plate, described bar shaped boss
The height of 7 and the aspect ratio of rectangular frame are 1: (2 ~ 3).As it is shown in figure 1, built refractory brick 1, refractory brick 1 on bar shaped boss 7 by laying bricks or stones
It is 4 pieces, between every block of refractory brick 1, is bonded with refractory wass 3.As it is shown on figure 3, every block of refractory brick 1 is provided with air-vent 8.Such as Fig. 1, Fig. 4
Shown in Fig. 5, the center position of the rectangular base plate of base 4 is fixed with sleeve pipe 6, and the upper end of air supply pipe 5 is fixed on concentrically
In described sleeve pipe 6.
As shown in figures 1 and 3, a diameter of 0.15 ~ 0.18mm of described air-vent 8, the centre-to-centre spacing of adjacent air-vent 8 is 25
~ 35mm, the hole area of described air-vent 8 is 1 with the area ratio of described refractory brick 1 upper surface: (200 ~ 400).
As it is shown in figure 1, the aspect ratio of the height of described refractory wass 3 and described refractory brick 1 is 1: (5 ~ 6), described fire-resistant
The thickness of mud 3 is 1 with the aspect ratio of described refractory brick 1: (4 ~ 5).Refractory wass 3 between refractory brick 1 is arranged above inhibition district,
Pouring materialfor steel ladle is filled, to alleviate the molten steel installation to the erosion of refractory brick 1 and minimizing air brick to Ladle Bottom during in order to install
The weakening of portion's intensity.
Embodiment 4
A kind of bottom-blown air brick for ladle refining.Described air brick as shown in figures 1 and 3, including refractory brick 1, the end
Seat 4 and air supply pipe 5.Described base 4, as shown in Fig. 1, Fig. 3, Fig. 4 and Fig. 5, is to be fixed with rectangle frame at the periphery of rectangular base plate
Frame, the inwall being close to rectangular frame is provided with bar shaped boss 7, and bar shaped boss 7 is positioned at the upper plane of rectangular base plate, described bar shaped boss
The height of 7 and the aspect ratio of rectangular frame are 1: (2 ~ 3).As it is shown in figure 1, built refractory brick 1, refractory brick 1 on bar shaped boss 7 by laying bricks or stones
It is 2 ~ 3 pieces or 5 ~ 8 pieces, between every block of refractory brick 1, is bonded with refractory wass 3.As it is shown on figure 3, every block of refractory brick 1 is provided with air-vent 8.
As shown in Figure 1, Figure 4 and Figure 5, the center position of the rectangular base plate of base 4 is fixed with sleeve pipe 6, and the upper end of air supply pipe 5 is concentricity
Be fixed in described sleeve pipe 6.
As shown in figures 1 and 3, a diameter of 0.17 ~ 0.20mm of described air-vent 8, the centre-to-centre spacing of adjacent air-vent 8 is 30
~ 50mm, the hole area of described air-vent 8 is 1 with the area ratio of described refractory brick 1 upper surface: (300 ~ 500).
As it is shown in figure 1, the aspect ratio of the height of described refractory wass 3 and described refractory brick 1 is 1: (4 ~ 5), described fire-resistant
The thickness of mud 3 is 1 with the aspect ratio of described refractory brick 1: (4 ~ 5).Refractory wass 3 between refractory brick 1 is arranged above inhibition district,
Pouring materialfor steel ladle is filled, to alleviate the molten steel installation to the erosion of refractory brick 1 and minimizing air brick to Ladle Bottom during in order to install
The weakening of portion's intensity.
This detailed description of the invention compared with prior art has a following good effect:
(1) refractory brick 1 of this detailed description of the invention uses ventilative slit 2 or air-vent 8, can produce a diameter of when Argon
The fine Argon Bubble of 5mm or less, plays the effect of " little vacuum chamber ", and the dissolved gas (H, N, O) in molten steel is by not stealpass
Enter in fine Argon Bubble, discharge of floating therewith, thus reduce the gas content in molten steel, improve steel product quality.
(2) the fine Argon Bubble group that this detailed description of the invention is obtained has a very wide distribution, and good dispersion, every cubic metre
Number of bubbles >=2 × 106Individual, good impurity removing effect, save Argon cost, liquid steel refining level is improved to state of the art
1.2 ~ 1.5 times, reduce the viscosity of molten steel, improve the castability of 10 ~ 15%, reduce casting billet surface cleaning rate 15 ~ 30%, use
Effective.
(3) this detailed description of the invention refractory wass 3 between refractory brick 1 is arranged above inhibition district, fills ladle during installation
Castable, alleviate molten steel to the erosion of refractory brick 1 and decrease air brick weakening to ladle bottom intensity is installed.Make
Extend to 1.2 ~ 1.5 times of existing level the service life of gas brick, and can be individually replaced when certain block refractory brick 1 is impaired, maintenance
Convenient, service life is long.
(4) this detailed description of the invention can be according to the different adjustment refractory brick 1 of the structure of ladle bottom and ladleful
Quantity and arrangement.And the installation of air brick will not destroy the integrity of ladle, it is not necessary to ladle is reequiped.Whole installation process
Very convenient: when air brick is installed to ladle, initially with centering jig position brick cup installation site, it is ensured that brick cup with
Hold-down mechanism axiality, to ensure air brick and hold-down mechanism substrate axiality；Installation tool is inserted air brick air supply pipe 5,
It is horizontally inserted brick cup hole, it is ensured that brick cup and air brick have same axis degree.
Claims (2)
1. the bottom-blown air brick for ladle refining, it is characterised in that described air brick includes refractory brick (1), base (4)
With air supply pipe (5)；Described base (4) is to be fixed with rectangular frame at the periphery of rectangular base plate, is close to the inwall of rectangular frame
Being provided with bar shaped boss (7), bar shaped boss (7) is positioned at the upper plane of rectangular base plate, the height of described bar shaped boss (7) and rectangle frame
The aspect ratio of frame is 1: (2 ~ 3)；Having built refractory brick (1) on bar shaped boss (7) by laying bricks or stones, refractory brick (1) is 2 ~ 8 pieces, every block of refractory brick
(1) being bonded with refractory wass (3) between, every piece of refractory brick (1) is provided with ventilative slit (2) or air-vent (8)；The rectangle of base (4)
The center position of base plate is fixed with sleeve pipe (6), and the upper end of air supply pipe (5) is fixed in described sleeve pipe (6) concentrically；
Described ventilative slit (2) is autonomous channel, and the width of ventilative slit (2) is 0.15 ~ 0.20mm, the length of ventilative slit (2)
Degree is 2 ~ 100 times of width, and the centre-to-centre spacing between adjacent ventilative slit (2) is 25 ~ 50mm, the slit jaw of described ventilative slit (2)
Long-pending and described refractory brick (1) upper surface area ratio is 1: (125 ~ 300)；Described air-vent (8) a diameter of 0.15 ~
0.20mm, the centre-to-centre spacing of adjacent air-vent (8) is 25 ~ 50mm, on the hole area of described air-vent (8) and described refractory brick (1)
The area ratio on surface is 1: (200 ~ 500).
Bottom-blown air brick for ladle refining the most according to claim 1, it is characterised in that described refractory wass (3)
Height is 1 with the aspect ratio of described refractory brick (1): (4 ~ 6), the thickness of described refractory wass (3) and the height of described refractory brick (1)
Degree ratio is 1: (4 ~ 5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620550570.2U CN205662535U (en) | 2016-06-08 | 2016-06-08 | A bottom blowing air brick for ladle refining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620550570.2U CN205662535U (en) | 2016-06-08 | 2016-06-08 | A bottom blowing air brick for ladle refining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205662535U true CN205662535U (en) | 2016-10-26 |
Family
ID=57156894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620550570.2U Withdrawn - After Issue CN205662535U (en) | 2016-06-08 | 2016-06-08 | A bottom blowing air brick for ladle refining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205662535U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105861783A (en) * | 2016-06-08 | 2016-08-17 | 武汉科技大学 | Ladle refining air brick with micro argon bubbles formed through bottom blowing |
| CN111719034A (en) * | 2019-03-21 | 2020-09-29 | 宝山钢铁股份有限公司 | Air blowing opening structure suitable for converter bottom |
| WO2022075961A1 (en) * | 2020-10-05 | 2022-04-14 | Limited Liability Company "Innotech-Splav" | A method for treating a liquid metal with a gas medium in a metallurgic container and a device for performing the same |
-
2016
- 2016-06-08 CN CN201620550570.2U patent/CN205662535U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105861783A (en) * | 2016-06-08 | 2016-08-17 | 武汉科技大学 | Ladle refining air brick with micro argon bubbles formed through bottom blowing |
| CN111719034A (en) * | 2019-03-21 | 2020-09-29 | 宝山钢铁股份有限公司 | Air blowing opening structure suitable for converter bottom |
| WO2022075961A1 (en) * | 2020-10-05 | 2022-04-14 | Limited Liability Company "Innotech-Splav" | A method for treating a liquid metal with a gas medium in a metallurgic container and a device for performing the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161026 Effective date of abandoning: 20171110 |