CN1039480C - Combined air-permeable brick for subaeration of ladle - Google Patents
Combined air-permeable brick for subaeration of ladle Download PDFInfo
- Publication number
- CN1039480C CN1039480C CN94118264A CN94118264A CN1039480C CN 1039480 C CN1039480 C CN 1039480C CN 94118264 A CN94118264 A CN 94118264A CN 94118264 A CN94118264 A CN 94118264A CN 1039480 C CN1039480 C CN 1039480C
- Authority
- CN
- China
- Prior art keywords
- brick
- granularity
- corundum
- air
- permeable
- 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
Landscapes
- Compositions Of Oxide Ceramics (AREA)
- Ceramic Products (AREA)
Abstract
The present invention relates to improvement on an existing material for a combined structural ladle bottom blowing air-permeable brick. The structural air-permeable brick is provided with an air-permeable core brick positioned in the middle part of a base brick; the core brick orderly comprises a cavity air chamber 6, an air-permeable safe brick 5 and a work brick 4 from bottom to top, and a filling material 2 on the periphery, and is wrapped with a stainless steel sheath 3; a base brick 1 and the filling material 2 are molded by casting and vibrating corundum-spinel (ultra) low cement castable, the safe brick 5 is made from a high-temperature sintered corundum material, and the work brick 4 is made from a high-temperature sintered chromium-corundum-mullite material. The present invention has the advantages of strong capability of melting loss resistance, high safety and reliability, good air permeability, low cost, long service life, etc.
Description
The present invention relates to improvement to a kind of material of existing combined structure ladle bottom blowing gas permeable brick.
The present invention will make improvement at the material of the combined ladle bottom blowing gas permeable brick of a kind of disperse clearance type of the prior art especially.Shown in Figure of description, the gas permeable brick of this structure has one to be ventilative core brick with the contour round platform of brick cup at the middle part of brick cup 1, this core brick is followed successively by cavity air chamber 6, the ventilative safety brick 5 of little round platform and vertical synusia shape slit ventilation working brick 4 from bottom to up, around them is stopping composition 2, outermost layer wraps up with stainless steel crust 3, suitable for reading opening wide, end opening taps into tracheae 7.At present, the world of this structure gas permeable brick authority factory is an Austrian magnesium difficult to understand company, and the employed material of the said firm's product is: working brick 4 burns till corundum-mullite matter for high temperature, and wherein mullite is a spot of; Safety brick 5 burns till magnesium chromium matter for high temperature; Brick cup contains Al for mechanical pressing high temperature burns till
2O
3Reach 80% high alumina matter.Many indexs of this product are better, but still have many insufficient places need wait to improve, and particularly because the selection of material is reasonable inadequately, cause the anti-melting loss ability of its working brick 4 relatively poor, are easily immersed by molten steel; The ventilation property of safety brick 5 is relatively poor, and security is also not ideal enough; The density of brick cup 1 is relatively poor, and anti-erosion is also bad, manufacturing process complexity, cost height.
Purpose of the present invention is intended to make improvements at problems of the prior art, the gas permeable brick that a kind of manufacturing process is simple, cost is low, permeability is stable to obtain, safe and reliable, anti-melting loss ability is strong, the life-span is long.
For achieving the above object, the technical solution that the present invention proposes is a kind of combined air-permeable brick for subaeration of ladle, there is one to be ventilative core brick with the contour round platform of brick cup at the middle part of brick cup, this core brick is followed successively by cavity air chamber, the ventilative safety brick of little round platform and vertical synusia shape slit ventilation working brick from bottom to up, around them is stopping composition, outermost layer wraps up with the stainless steel crust, suitable for reading opening wide, and end opening taps into tracheae.Brick cup (1) and stopping composition (2) are by the low cement deposit material cast of corundum-spinel (surpassing) vibratory compaction, and its component (weight %) is: the fused corundom 60～80% of granularity≤8mm, the spinel 10～30% of granularity≤1mm, α-Al of granularity≤10 μ m
2O
3≤ 6.5%, the aluminous cement 1-10% of granularity≤0.088mm; Ventilative safety brick (5) burns till the corundum material by high temperature and makes, and its component (weight %) is: the fused corundom 60-95% of granularity≤1mm, α-Al of granularity＜10 μ m
2O
35-20%, the bonding clay of granularity≤0.1mm≤10%; Working brick (4) burns till chromium-corundum-mullite material by high temperature and makes, and its component (weight %) is: the fused corundom 35-75% of granularity≤3mm, α-Al of granularity＜10 μ m
2O
33-20%, the electrofused mullite 5-30% of granularity≤3mm, the technical pure chromic oxide of granularity≤0.2mm O.5-7%, the bonding clay of granularity≤0.1mm≤10%.
Accompanying drawing is depicted as structural representation of the present invention.
As shown in the figure, the structure that the present invention relates to is: have one to be ventilative core brick with the contour round platform of brick cup at the middle part of brick cup 1, this core brick is followed successively by cavity air chamber 6, the ventilative safety brick 5 of little round platform and vertical synusia shape slit ventilation working brick 4 from bottom to up, around them is stopping composition 2, outermost layer wraps up with stainless steel crust 3, suitable for reading opening wide, end opening taps into tracheae 7.Wherein brick cup 1 and stopping composition 2 are by the low cement deposit material cast of corundum one spinel (surpassing) vibratory compaction, the component of this mould material (weight %) is: the fused corundom 60～80% of granularity≤8mm, the spinel 10～30% of granularity≤1mm, α-Al of granularity≤1O μ m
2O
3≤ 6.5%, and the aluminous cement 1～10% of granularity≤0.088mm; Wherein ventilative safety brick 5 burns till the corundum material by high temperature and makes, and the component of this material (weight %) is: surmise≤fused corundom 60～95% of 1mm α-Al of granularity＜10 μ m
2O
35～20%, the bonding clay of granularity≤0.1mm≤10%; Wherein working brick 4 burns till chromium-hand hay cutter jade-mullite material by high temperature and makes, and the component of this material (weight %) is: the fused corundom 35～75% of granularity≤3mm, α-Al of granularity＜10 μ m
2O
33～20%, the electrofused mullite 5～30% of granularity≤3mm, the technical pure chromic oxide 0.5～7% of granularity≤0.2mm, the bonding clay of granularity≤0.1mm≤10%.
The working brick 4 that the present invention proposes is difficult for being immersed by molten steel, and anti-melting loss ability is strong; Safety brick 5 permeability are good, safe and reliable; Brick cup 1 density is good, anti-etch, and the life-span is long, owing to adopt (surpassing) low cement deposit material vibratory compaction, does not need large-scale brick pressing machine and high temperature to burn till stove, and manufacturing process is simple, and cost is low.The product of the present invention and magnesium difficult to understand company compares, and is used for 300 tons of ladle bottom blowing argon gas, access times 22 times, the average melting loss speed of the present invention is 2～5mm/ time, contrast product is 3～6mm/ time, and the contrast product life-span is 22 times, and work-ing life of the present invention is more than 22 times.Simultaneously, price of the present invention only is about 1/2 of a contrast product price.
Claims (1)
1. combined air-permeable brick for subaeration of ladle, there is one to be ventilative core brick with the contour round platform of brick cup at the middle part of brick cup, this core brick is followed successively by the cavity air chamber from bottom to up, ventilative safety brick of little round platform and vertical synusia shape slit ventilation working brick, around them is stopping composition, outermost layer wraps up with the stainless steel crust, suitable for reading opening wide, end opening taps into tracheae, it is characterized in that: described brick cup (1) and stopping composition (2) are by the low cement deposit material cast of corundum-spinel (surpassing) vibratory compaction, its component (weight %) is: the fused corundom 60～80% of granularity≤8mm, the spinel 10～30% of granularity≤1mm, α-Al of granularity≤10 μ m
2O
3≤ 6.5%, the aluminous cement 1-10% of granularity≤0.088mm; Ventilative safety brick (5) burns till the corundum material by high temperature and makes, and its component (weight %) is: the fused corundom 60-95% of granularity≤1mm, α-Al of granularity＜10 μ m
2O
35-20%, the bonding clay of granularity≤0.1mm≤10%; Working brick (4) burns till chromium-corundum-mullite material by high temperature and makes, and its component (weight %) is: the fused corundom 35-75% of granularity≤3mm, α-Al of granularity＜10 μ m
2O
33-20%, the electrofused mullite 5-30% of granularity≤3mm, the technical pure chromic oxide 0.5-7% of granularity≤0.2mm, the bonding clay of granularity≤0.1mm≤10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94118264A CN1039480C (en) | 1994-11-18 | 1994-11-18 | Combined air-permeable brick for subaeration of ladle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94118264A CN1039480C (en) | 1994-11-18 | 1994-11-18 | Combined air-permeable brick for subaeration of ladle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1107401A CN1107401A (en) | 1995-08-30 |
| CN1039480C true CN1039480C (en) | 1998-08-12 |
Family
ID=5038722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94118264A Expired - Fee Related CN1039480C (en) | 1994-11-18 | 1994-11-18 | Combined air-permeable brick for subaeration of ladle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1039480C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101934550B (en) * | 2010-08-02 | 2013-07-31 | 成都府天新材料科技有限公司 | Manufacturing method of fired steel fibre gas permeable bricks |
| CN102274957A (en) * | 2011-08-05 | 2011-12-14 | 莱芜钢铁集团有限公司 | Steel ladle |
| CN102554204B (en) * | 2012-02-22 | 2013-09-11 | 郑州振东科技有限公司 | Permeable brick tail pipe anti-blocking device |
| CN103658624B (en) * | 2012-09-17 | 2016-08-10 | 中冶宝钢技术服务有限公司 | Air brick of steel ladle melting loss measuring method and device |
| CN104446566B (en) * | 2014-12-16 | 2016-08-24 | 江苏苏嘉集团新材料有限公司 | Degasification sheet for jet refined metals liquid and preparation method thereof |
| CN106631050B (en) * | 2015-11-05 | 2019-12-10 | 洛阳轩石新材料科技有限公司 | Cleaning-free air brick with uniform structure and manufacturing method thereof |
| CN107840672A (en) * | 2017-11-10 | 2018-03-27 | 河南新拓耐火材料有限公司 | Brick cup preparation method and equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4115133A (en) * | 1976-08-26 | 1978-09-19 | Magnesital-Feuerfest Gmbh | Unburnt refractory masses or bricks for metallurgical vessels based on chrome-ore and carbon-containing binder |
| JPS586771A (en) * | 1981-06-29 | 1983-01-14 | ドレツサ−・インダストリ−ズ・インコ−ポレ−テツド | Freely assembled hardly meltable start mold segment |
| US4432536A (en) * | 1981-04-08 | 1984-02-21 | Didier-Werke Ag | Molten iron containing vessel with improved refractory lining |
| JPH03205356A (en) * | 1989-12-29 | 1991-09-06 | Kawasaki Refract Co Ltd | Unburned brick for pan lining |
-
1994
- 1994-11-18 CN CN94118264A patent/CN1039480C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4115133A (en) * | 1976-08-26 | 1978-09-19 | Magnesital-Feuerfest Gmbh | Unburnt refractory masses or bricks for metallurgical vessels based on chrome-ore and carbon-containing binder |
| US4432536A (en) * | 1981-04-08 | 1984-02-21 | Didier-Werke Ag | Molten iron containing vessel with improved refractory lining |
| JPS586771A (en) * | 1981-06-29 | 1983-01-14 | ドレツサ−・インダストリ−ズ・インコ−ポレ−テツド | Freely assembled hardly meltable start mold segment |
| JPH03205356A (en) * | 1989-12-29 | 1991-09-06 | Kawasaki Refract Co Ltd | Unburned brick for pan lining |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1107401A (en) | 1995-08-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0839775B1 (en) | Hydraulically-bonded monolithic refractories containing a calcium oxide free binder comprised of a hydratable alumina source and magnesium oxide | |
| CA2486067C (en) | Fiber reinforced filter for molten metal filtration and method for producing such filters | |
| CN1039480C (en) | Combined air-permeable brick for subaeration of ladle | |
| US5420087A (en) | Refractory or fireproof brick as tin bath bottom brick | |
| US4703022A (en) | Alumina and MgO preheatable insulating refractory liners and methods of use thereof | |
| US5403794A (en) | Alumina-zirconia refractory material and articles made therefrom | |
| CN1289241C (en) | Preparation method of Al2O3-MgO-ZrO2 ladle air plug | |
| CA2242243C (en) | Nozzle for use in continuous casting of steel | |
| US2113818A (en) | Fused refractory | |
| CN111957951B (en) | Preparation method and application of modified aluminum powder for refractory castable | |
| US4869468A (en) | Alumina and MgO preheatable insulating refractory liners and methods of using | |
| US4696455A (en) | Zircon and MgO preheatable insulating refractory liners and methods of use thereof | |
| CN204842949U (en) | Combined type high life, low -cost ladle air brick brick cup and brick cup mould | |
| JPH0212664B2 (en) | ||
| US5868956A (en) | Nozzle for use in continuous casting of steel | |
| JP3430360B2 (en) | Porous plug for gas injection | |
| Comstock | Some experiments with Zircon and Zirconia refractories | |
| US5318279A (en) | Receptacle for molten metals, material for this receptacle and method of producing the material | |
| EP0302975A1 (en) | A method of making a zircon and mgo preheatable insulating refractory liner and methods of use thereof | |
| JPS5920633B2 (en) | casting nozzle | |
| CN1023085C (en) | Method to make refractory pot for casting steel billet | |
| JPS6232150B2 (en) | ||
| JP2001138017A (en) | Nozzle for continuously casting steel | |
| JPH05309457A (en) | Refractory for continuous casting | |
| JP2816585B2 (en) | Method for producing refractory material containing magnesia |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI BAO STEEL GROUP IRON AND STEEL CO LTD Free format text: FORMER NAME OR ADDRESS: BAOSHAN STEEL GROUP IRON AND STEEL CO LTD Owner name: BAOSHAN IRON & STEEL CO., LTD. Free format text: FORMER NAME OR ADDRESS: SHANGHAI BAO STEEL GROUP IRON AND STEEL CO LTD |
|
| CP03 | Change of name, title or address |
Address after: Orchard, Fujin Road, Baoshan District, Shanghai Patentee after: BAOSHAN IRON & STEEL Co.,Ltd. Address before: No. 370 Pu circuit, Shanghai, Pudong New Area Patentee before: BAOSHAN IRON & STEEL CO.,LTD. Address after: 200122 No. 370 Pu circuit, Shanghai, Pudong New Area Patentee after: BAOSHAN IRON & STEEL CO.,LTD. Address before: 201900 No. 1, Middle Road, Baoshan District, Shanghai Patentee before: Baosteel Group Corporation |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 19980812 Termination date: 20101118 |