CN107841592A - A kind of novel converter tapping hole sleeve brick - Google Patents
A kind of novel converter tapping hole sleeve brick Download PDFInfo
- Publication number
- CN107841592A CN107841592A CN201711383063.XA CN201711383063A CN107841592A CN 107841592 A CN107841592 A CN 107841592A CN 201711383063 A CN201711383063 A CN 201711383063A CN 107841592 A CN107841592 A CN 107841592A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- tapping hole
- brick
- external diameter
- sleeve brick
- 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.)
- Pending
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/44—Refractory linings
- C21C5/445—Lining or repairing the taphole
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
The invention discloses a kind of novel converter tapping hole sleeve brick, and it is made up of cylinder I and cylinder II, and cylinder I is made up with cylinder II of refractory material, is fitted to each other by fire resisting inserts and tapping hole brick cup；Described cylinder I has cavity with axially disposed in the middle part of cylinder II；Described cylinder II is arranged on the inside of Converter, and the external diameter φ 1 of cylinder II is than I external diameter φ of cylinder, 4 small 20 150mm.The present invention is different using cylinder I, the external diameter of cylinder II, carries out gap separation, avoids molten steel leakage, and sleeve brick life-span, lifting molten steel quality, the purpose of steady production are improved so as to reach.
Description
Technical field
The invention belongs to field of iron and steel smelting, and in particular to a kind of novel converter tapping hole sleeve brick.
Background technology
Converter taphole, which is molten steel, is entered the unique passage of ladle by converter, sleeve brick be complete the function critical function it is resistance to
Fiery material.In tapping process, tapping hole sleeve brick bears high-temperature molten steel, the chemical erosion of high oxidative clinker, mechanical erosion and urgency
The thermal shock effect of cold anxious heat, is highly vulnerable to breakage it, not only directly influence the converter smelting cycle, STEELMAKING PRODUCTION rate, pushing off the slag effect,
Steel quality, and safety in production is influenceed huge.
Tapping hole sleeve brick in hot lower repairing and replacing, after sleeve brick is changed, need to typically be carried out to gap between sleeve brick and brick cup
Grouting, high temperature sintering, reach the purpose tamped.The new stove of converter uses as a servant first tapping hole installation in the cold state, using bulk
Refractory matter is filled to hole between tapping hole sleeve brick and brick cup；Because operation space is narrow and small and can not synchronously carry out high temperature sintering
Processing, therefore can not be tamped between tapping hole sleeve brick and brick cup, gap in various degree be present, in tapping process, molten steel often occur
Seepage, causes that the sleeve brick life-span is low, even production disruption.
The content of the invention
To solve the above problems, the invention provides a kind of novel converter tapping hole sleeve brick, built by laying bricks or stones for the new stove of converter
Cold conditions is installed in journey, is avoided that molten steel leakage in opening new furnace tapping process, improves the sleeve brick life-span.
The concrete technical scheme of the present invention is as follows：A kind of novel converter tapping hole sleeve brick, it is by II group of cylinder I and cylinder
Into cylinder I is made up with cylinder II of refractory material, is fitted to each other by fire resisting inserts and tapping hole brick cup；Described cylinder I
There is cavity with axially disposed in the middle part of cylinder II；Described cylinder II is arranged on the inside of Converter, and the external diameter φ 1 of cylinder II compares cylinder
I external diameter φ, 4 small 20-150mm.
Further, the described section configuration of cylinder I is circular or ellipse, its external diameter φ 4 according to BOF nominal capacity,
Brick cup internal diameter is designed, and the external diameter of cylinder I is compared with the small 2.0-5.0mm of the internal diameter of tapping hole brick cup I；Cylinder I (1) length is than tapping hole seat
Brick I (6), the short 100-300mm of tapping hole brick cup II (7) length sum.
Further, the described section configuration of cylinder II is circular or ellipse, and the length L1 of cylinder II is 100-300mm.
Further, described cavity section configuration is circular or ellipse, and its diameter is according to BOF nominal capacity and stream
Steel time requirement is selected, and cavity diameter φ 2 and cavity diameter φ 3 at cylinder I can be with identical or differ at cylinder II.
Compared with prior art, beneficial effects of the present invention are：A kind of structure of novel converter tapping hole sleeve brick of the present invention
Simply, make and easy to use, it is different using cylinder I, the external diameter of cylinder II, gap separation is carried out, molten steel leakage is avoided, reaches and carry
High sleeve brick life-span, lifting molten steel quality, the purpose of steady production；The sleeve brick of the present invention increases tapping hole sleeve brick and brick cup simultaneously
Between hole, be easily installed construction filling fire resisting material.
Figure of description
Fig. 1 is the structural representation of sleeve brick of the present invention；
Fig. 2 is that the assembling of sleeve brick of the present invention uses schematic diagram；
Fig. 3 is the schematic diagram of embodiment 1；
In figure：1- cylinders I, 2- cavitys, 3- cylinders II, 4- tapping hole sleeve bricks, 5- fire resisting inserts, 6- tapping holes brick cup I,
7- tapping holes brick cup II.
Embodiment
The present invention is further described through with reference to Figure of description and embodiment.
Embodiment 1
Such as Fig. 1, shown in Fig. 2, a kind of novel converter tapping hole sleeve brick of the present invention, it is by cylinder I (1) and cylinder II (3) group
Into cylinder I (1) is made up with cylinder II (3) of refractory material, is fitted to each other by fire resisting inserts (5) with tapping hole brick cup；Cylinder
Body I (1) has cavity (2) with axially disposed in the middle part of cylinder II (2)；Cylinder II (3) is arranged on the inside of converter, and cylinder II (3) is outside
Footpath φ 1 is than 4 small 20-150mm of cylinder I (1) external diameter φ.It is different with cylinder II (3) external diameter so to design cylinder I (1) so that cylinder
II (3) and the gap of tapping hole brick cup II (7) increase.Surveyed because cylinder II (2) is located in converter, molten steel can first pass through it, greatly
Gap be easy to construction filling fire resisting inserts (5), avoid molten steel leakage, so as to reach improve the sleeve brick life-span, lifting molten steel product
Matter, the purpose of steady production.
For the ease of manufacturing and the sleeve brick using the present invention, above-mentioned cylinder I (1) section configuration is provided in round or ellipse
Circle, its external diameter φ 4 are designed according to BOF nominal capacity, brick cup internal diameter, and cylinder I (1) external diameter is compared with tapping hole brick cup I (6)
The small 2.0-5.0mm of internal diameter, reserve gap and be used to fill fire resisting inserts (5)；Cylinder I (1) length than tapping hole brick cup I (6), go out
The short 100-300mm of (7) length sum of steel mouth brick cup II.Above-mentioned cylinder II (3) section configuration is arranged to be circular or oval
Shape, cylinder II (3) length L1 are 100-300mm.
Above-mentioned cavity (2) section configuration is circular or ellipse simultaneously, cavity (2) diameter according to BOF nominal capacity and
Stream steel time requirement is selected, and cylinder II (3) place cavity (2) diameter phi 2 and cylinder I (1) place cavity (2) diameter phi 3 can be with
It is identical or differ, MOLTEN STEEL FLOW can't be impacted.
Such as：Shown in Fig. 3, a kind of nominal capacity is 300 tons of converter taphole sleeve bricks, figure middle cylinder body I (1) external diameter φ 4
For 375mm；Cylinder II (3) external diameter φ 1 is 325mm, and length L1 is 200mm；Cavity (2) diameter phi 2 is 150mm, and φ 3 is
170mm。
Cylinder I (1), cylinder II (3) are cylindrical structure, are made up of magnesium carbonaceous MT-10 refractory materials；With tapping hole sleeve brick
Tapping hole brick cup I (6) internal diameter 380mm of assembling, tapping hole brick cup II (7) internal diameter 380mm；When tapping hole sleeve brick (4) is installed, its
Outer surface applies a small amount of magnesite refractory；Region between cylinder II (3) and tapping hole brick cup II (7) is filled out with magnesia refractories
Fill.
According to construction feedback, using the sleeve brick of the present invention, can improve more than 30 times/branch of sleeve brick life-span, molten steel leakage rate is
0, ensure whole stove labour safe operation, steady production is increased the benefit.
Claims (4)
1. a kind of novel converter tapping hole sleeve brick, it is characterized in that, it is made up of cylinder I (1) and cylinder II (3), cylinder I (1) with
Cylinder II (3) is made up of refractory material, is fitted to each other by fire resisting inserts (5) with tapping hole brick cup；Described cylinder I (1)
There is cavity (2) with axially disposed in the middle part of cylinder II (3)；Described cylinder II (3) is arranged on the inside of Converter, cylinder II (3)
External diameter φ 1 is than 4 small 20-150mm of cylinder I (1) external diameter φ.
2. a kind of novel converter tapping hole sleeve brick according to claim 1, it is characterized in that, described cylinder I (1) section shape
Shape is designed for circular or ellipse, its external diameter φ 4 according to BOF nominal capacity, brick cup internal diameter, and cylinder I (1) external diameter relatively goes out
The small 2.0-5.0mm of (6) internal diameter of steel mouth brick cup I；Cylinder I (1) length is than tapping hole brick cup I (6), tapping hole brick cup II (7) length
The short 100-300mm of sum.
3. a kind of novel converter tapping hole sleeve brick according to claim 1, it is characterized in that, described cylinder II (3) section
Circular or ellipse is shaped as, cylinder II (3) length L1 is 100-300mm.
4. a kind of novel converter tapping hole sleeve brick according to claim 1, it is characterized in that, described cavity (2) section shape
Shape is circular or ellipse, and its diameter is selected according to BOF nominal capacity and stream steel time requirement, cylinder II (3) place cavity
(2) diameter phi 2 and cylinder I (1) place cavity (2) diameter phi 3 can be with identical or differ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711383063.XA CN107841592A (en) | 2017-12-20 | 2017-12-20 | A kind of novel converter tapping hole sleeve brick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711383063.XA CN107841592A (en) | 2017-12-20 | 2017-12-20 | A kind of novel converter tapping hole sleeve brick |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107841592A true CN107841592A (en) | 2018-03-27 |
Family
ID=61684180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711383063.XA Pending CN107841592A (en) | 2017-12-20 | 2017-12-20 | A kind of novel converter tapping hole sleeve brick |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107841592A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201598306U (en) * | 2010-01-22 | 2010-10-06 | 新疆八一钢铁股份有限公司 | End tubular brick at converter tapping hole |
| JP2010265539A (en) * | 2009-05-18 | 2010-11-25 | Sumitomo Metal Ind Ltd | Fixture for exchanging sleeve brick and method for repairing molten steel tapping hole in converter |
| CN202415598U (en) * | 2012-01-18 | 2012-09-05 | 济南鲁东耐火材料有限公司 | Converter tapping hole sleeve brick |
| CN207845687U (en) * | 2017-12-20 | 2018-09-11 | 马鞍山钢铁股份有限公司 | A kind of novel converter tapping hole sleeve brick |
-
2017
- 2017-12-20 CN CN201711383063.XA patent/CN107841592A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010265539A (en) * | 2009-05-18 | 2010-11-25 | Sumitomo Metal Ind Ltd | Fixture for exchanging sleeve brick and method for repairing molten steel tapping hole in converter |
| CN201598306U (en) * | 2010-01-22 | 2010-10-06 | 新疆八一钢铁股份有限公司 | End tubular brick at converter tapping hole |
| CN202415598U (en) * | 2012-01-18 | 2012-09-05 | 济南鲁东耐火材料有限公司 | Converter tapping hole sleeve brick |
| CN207845687U (en) * | 2017-12-20 | 2018-09-11 | 马鞍山钢铁股份有限公司 | A kind of novel converter tapping hole sleeve brick |
Non-Patent Citations (1)
| Title |
|---|
| 许彩云: "转炉出钢口的设计与应用", 耐火与石灰, vol. 42, no. 1, pages 15 - 17 * |
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