CN105837189B - Safety permanent material layer of corundum compound type ladle inner wall and preparation method thereof - Google Patents
Safety permanent material layer of corundum compound type ladle inner wall and preparation method thereof Download PDFInfo
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- CN105837189B CN105837189B CN201610174556.1A CN201610174556A CN105837189B CN 105837189 B CN105837189 B CN 105837189B CN 201610174556 A CN201610174556 A CN 201610174556A CN 105837189 B CN105837189 B CN 105837189B
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
- C04B35/101—Refractories from grain sized mixtures
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/02—Linings
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/71—Ceramic products containing macroscopic reinforcing agents
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
- C04B2235/3218—Aluminium (oxy)hydroxides, e.g. boehmite, gibbsite, alumina sol
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
- C04B2235/3222—Aluminates other than alumino-silicates, e.g. spinel (MgAl2O4)
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Ceramic Products (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The invention discloses a kind of safety permanent material layers of corundum compound type ladle inner wall and preparation method thereof, it is formed using common alumina-magnesia castable and corundum gravity flow pouring material composite casting, and the corundum gravity flow pouring material is made of materials described below by weight：10-15 parts of 8-5mm white fused aluminas, 8-12 parts of 5-3mm white fused aluminas, 13-18 parts of 3-1mm white fused aluminas, 325 7-10 parts of mesh white fused aluminas, 200 8-12 parts of mesh white fused aluminas, 325 5-10 parts of mesh electric smelting spinelles, ɑ-AL2O34-8 parts, 5-8 parts of Aluminum sol, 0.05-0.15 parts of explosion-proof fiber, 0.2-0.5 parts of high efficiency water reducing agent.The present invention has very strong corrosion resistance, under the premise of not changing original ladle dischargeable capacity, original permanent layer is divided into two parts construction, alumina-magnesia castable is used with box hat binding site, corundum gravity flow pouring material is used close to containment wall working lining half part, working layer is allowed to use the limit as far as possible, ladle is improved and uses packet age, ton steel refractory consumption is reduced, economic benefit is apparent.
Description
Technical field：
The present invention relates to ladles used in a kind of continuous casting of iron and steel field of metallurgy, more particularly to a kind of corundum compound type steel
Safety permanent material layer of packet inner wall and preparation method thereof.
Background technology：
The permanent ladle layer material used now is mostly that low cement high alumina castable, light thermal-insulation castable or magnalium pour
Material feeding can only play heat preservation and primary protective action due to material.Containment wall working lining use residue three/
One（About 50~80mm）When, consider from a safety viewpoint, working lining must just be removed and be built by laying bricks or stones again completely, not only cause material
Waste, improve the cost of enterprise, still have some position of individual work layer it is weak abnormal when occur wearing packet situation, life occurs
Property accident.
Invention content：
The technical problem to be solved by the present invention is to：It overcomes the deficiencies of the prior art and provide one kind and being easy implementation, Neng Gouyou
Effect improves the service life of steel ladle working layer and reduces the safety permanent material of corundum compound type ladle inner wall of ton steel refractory consumption
Layer and preparation method thereof.
The technical scheme is that：
A kind of safety permanent material layer of corundum compound type ladle inner wall, using common alumina-magnesia castable and corundum gravity flow pouring
Material composite casting forms, and the corundum gravity flow pouring material is made of materials described below by weight：10-15 parts of 8-5mm white fused aluminas, 5-
8-12 parts of 3mm white fused aluminas, 13-18 parts of 3-1mm white fused aluminas, 325 7-10 parts of mesh white fused aluminas, 200 8-12 parts of mesh white fused aluminas, 325 mesh
5-10 parts of electric smelting spinelle, ɑ-AL2O34-8 parts, 5-8 parts of Aluminum sol, 0.05-0.15 parts of explosion-proof fiber, high efficiency water reducing agent 0.2-
0.5 part.
The material group becomes：The corundum gravity flow pouring material is made of materials described below by weight：8-5mm white fused aluminas 12
Part, 10 parts of 5-3mm white fused aluminas, 15 parts of 3-1mm white fused aluminas, 325 8 parts of mesh white fused aluminas, 200 10 parts of mesh white fused aluminas, 325 mesh electric smelting points
7 parts of spar, ɑ-AL2O35 parts, 6 parts of Aluminum sol, 0.10 part of explosion-proof fiber, 0.3 part of high efficiency water reducing agent.
Alternatively, the material group becomes：The corundum gravity flow pouring material is made of materials described below by weight：8-5mm is rigid in vain
It is 14 parts beautiful, 11 parts of 5-3mm white fused aluminas, 17 parts of 3-1mm white fused aluminas, 325 9 parts of mesh white fused aluminas, 200 11 parts of mesh white fused aluminas, 325 mesh electricity
Molten 8 parts of spinelle, ɑ-AL2O37 parts, 7 parts of Aluminum sol, 0.12 part of explosion-proof fiber, 0.4 part of high efficiency water reducing agent.
A kind of preparation method of the safety permanent material layer of corundum compound type ladle inner wall, includes the following steps：
A, first ladle shell is hung in and builds working position by laying bricks or stones, the sundries for wrapping bottom and containment wall cleaned out, then by air brick
Model and pocket block model are respectively put into ventilating seat brick and pocket block position；
B, the dry-mixed 4-8 clocks of kolleroang, after mixing, additional total weight 5.0-6.0 parts is added in common alumina-magnesia castable
Tap water, mixed 5-6 minutes of rewetting blendes together the preferable pureed mixture of mobility, which poured into the packet of ladle in batches
Bottom vibrates warehouse with vibrating head, so that it is shakeout, is closely knit, constitutes packet bottom permanent layer；
C, butter is applied to permanent layer fetal membrane outer surface with hairbrush, packet bottom permanent layer ties natural curing 24 hours, makes
Packet bottom permanent layer, which has, to be taken out when some strength, again by air brick model and pocket block model and then uses the fetal membrane for coating oil
Driving hangs in the adjustment of ladle shell, positioning；
D, the dry-mixed 4-8 clocks of kolleroang, after mixing, additional total weight 5.0-6.0 parts is added in common alumina-magnesia castable
Tap water, mixed 5-6 minutes of rewetting blendes together the preferable pureed mixture of mobility, which is poured into fetal membrane and shell
In the cavity of composition, while the power supply of mould internal vibration device is opened, until being poured, pine is determined according to ambient temperature and amount of water
The mould time, it is ensured that fetal membrane curing time can be demoulded smoothly for 48 hours, and demoulding natural curing 36 hours, first layer permanent layer makes knot
Beam；
E, gained ladle in Step d is toasted, obtains the permanent liner body of compound first layer；
F, the step of repeating the above a to e, and common alumina-magnesia castable is changed to the corundum gravity flow pouring material, it obtains
To the complete safety permanent material layer of corundum compound type ladle inner wall.
When being poured into a mould in step d, after material is finished in mixer hopper, the stirring of the second bucket is carried out immediately, until pouring
Finish, rapping number 2 to 3 times.
It is toasted described in step d and includes successively 100-200 ° of small fire 24 hours, 200-400 ° of small moderate heat 24 hours, moderate heat
400-600 ° 18 hours, 600-800 ° of big fire 8 hours adds up 74 hours.
The beneficial effects of the invention are as follows：
1, the present invention has very strong corrosion resistance, due to combining system not use cement, is combined using Aluminum sol, therefore
Thermal shock resistance is significantly improved, and in structure under the premise of not changing original ladle dischargeable capacity, by it is original forever
Long layer is divided into two parts construction, common alumina-magnesia castable is used with box hat binding site, close to containment wall working lining half part
Using corundum gravity flow pouring material, working layer is allowed to use the limit as far as possible, improves ladle using packet age, reduce the resistance to material of ton steel
Consumption, economic benefit are apparent.
2, the present invention is by the α-Al containing active constituent2O3Matrix encounters the high magnesia powder of purity in baking and forms tool
There is fibrous spinel crystal phase, greatly improves abrasion resistance.
3, the present invention is easy to implement, can effectively improve the service life of steel ladle working layer and reduce ton steel refractory consumption,
Its is applied widely, with good economic efficiency after popularization.
Specific implementation mode：
Embodiment one：The safety permanent material layer of corundum compound type ladle inner wall is flow automatically using common alumina-magnesia castable and corundum
Castable composite casting forms, wherein：Corundum gravity flow pouring material is made of materials described below by weight：10 parts of 8-5mm white fused aluminas, 5-
8 parts of 3mm white fused aluminas, 13 parts of 3-1mm white fused aluminas, 325 7 parts of mesh white fused aluminas, 200 8 parts of mesh white fused aluminas, 325 mesh electric smelting spinelles 5
Part, ɑ-AL2O34 parts, 5 parts of Aluminum sol, 0.05 part of explosion-proof fiber, 0.2 part of high efficiency water reducing agent.
The preparation method of the safety permanent material layer of corundum compound type ladle inner wall, includes the following steps：
A, first ladle shell is hung in and builds working position by laying bricks or stones, the sundries for wrapping bottom and containment wall cleaned out, then by air brick
Model and pocket block model are respectively put into ventilating seat brick and pocket block position；
B, the dry-mixed 4-8 clocks of kolleroang, after mixing, additional total weight 5.0-6.0 parts is added in common alumina-magnesia castable
Tap water, mixed 5-6 minutes of rewetting blendes together the preferable pureed mixture of mobility, which poured into the packet of ladle in batches
Bottom vibrates warehouse with vibrating head, so that it is shakeout, is closely knit, constitutes packet bottom permanent layer；
C, butter is applied to permanent layer fetal membrane outer surface with hairbrush, packet bottom permanent layer ties natural curing 24 hours, makes
Packet bottom permanent layer, which has, to be taken out when some strength, again by air brick model and pocket block model and then uses the fetal membrane for coating oil
Driving hangs in the adjustment of ladle shell, positioning；
D, the dry-mixed 4-8 clocks of kolleroang, after mixing, additional total weight 5.0-6.0 parts is added in common alumina-magnesia castable
Tap water, mixed 5-6 minutes of rewetting blendes together the preferable pureed mixture of mobility, which is poured into fetal membrane and shell
In the cavity of composition, while the power supply of mould internal vibration device is opened, until being poured, pine is determined according to ambient temperature and amount of water
The mould time, it is ensured that fetal membrane curing time can be demoulded smoothly for 48 hours, and demoulding natural curing 36 hours, first layer permanent layer makes knot
Beam；
E, gained permanent ladle layer in Step d is toasted, obtains the permanent liner body of compound first layer；
F, the step of repeating the above a to e, and common alumina-magnesia castable is changed to corundum gravity flow pouring material, it has obtained
The whole safety permanent material layer of corundum compound type ladle inner wall.
Preferred embodiment：When being poured into a mould in step d, after material is finished in mixer hopper, the stirring of the second bucket is carried out immediately, directly
To being poured, rapping number 2 to 3 times.
It is toasted described in step d and includes successively 100-200 ° of small fire 24 hours, 200-400 ° of small moderate heat 24 hours, moderate heat
400-600 ° 18 hours, 600-800 ° of big fire 8 hours adds up 74 hours.
The present invention is divided into two parts construction under the premise of not changing original ladle dischargeable capacity, by original permanent layer, with
Box hat binding site uses common alumina-magnesia castable, and corundum gravity flow pouring material is used close to containment wall working lining half part,
It allows working layer to use the limit as far as possible, improves ladle using packet age, reduce ton steel refractory consumption, economic benefit is apparent.
Embodiment two：The present embodiment and embodiment one are essentially identical, and something in common does not repeat, the difference is that：Corundum
Gravity flow pouring material is made of materials described below by weight：15 parts of 8-5mm white fused aluminas, 12 parts of 5-3mm white fused aluminas, 3-1mm white fused aluminas 18
Part, 325 10 parts of mesh white fused aluminas, 200 12 parts of mesh white fused aluminas, 325 10 parts of mesh electric smelting spinelles, ɑ-AL2O38 parts, 8 parts of Aluminum sol is prevented
0.15 part of quick-fried fiber, 0.5 part of high efficiency water reducing agent.
Embodiment three：The present embodiment and embodiment one are essentially identical, and something in common does not repeat, the difference is that：Corundum
Gravity flow pouring material is made of materials described below by weight：12 parts of 8-5mm white fused aluminas, 10 parts of 5-3mm white fused aluminas, 3-1mm white fused aluminas 15
Part, 325 8 parts of mesh white fused aluminas, 200 10 parts of mesh white fused aluminas, 325 7 parts of mesh electric smelting spinelles, ɑ-AL2O35 parts, 6 parts of Aluminum sol is explosion-proof
0.10 part of fiber, 0.3 part of high efficiency water reducing agent.
Example IV：The present embodiment and embodiment one are essentially identical, and something in common does not repeat, the difference is that：Corundum
Gravity flow pouring material is made of materials described below by weight：14 parts of 8-5mm white fused aluminas, 11 parts of 5-3mm white fused aluminas, 3-1mm white fused aluminas 17
Part, 325 9 parts of mesh white fused aluminas, 200 11 parts of mesh white fused aluminas, 325 8 parts of mesh electric smelting spinelles, ɑ-AL2O37 parts, 7 parts of Aluminum sol is explosion-proof
0.12 part of fiber, 0.4 part of high efficiency water reducing agent.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, it is all
It is that any simple modification, equivalent change and modification made by above example are still fallen within according to the technical essence of the invention
In the range of technical solution of the present invention.
Claims (6)
1. a kind of safety permanent material layer of corundum compound type ladle inner wall, using common alumina-magnesia castable and corundum gravity flow pouring material
Composite casting forms, it is characterized in that：The corundum gravity flow pouring material is made of materials described below by weight：8-5mm white fused aluminas 10-15
Part, 8-12 parts of 5-3mm white fused aluminas, 13-18 parts of 3-1mm white fused aluminas, 325 7-10 parts of mesh white fused aluminas, 200 8-12 parts of mesh white fused aluminas,
325 5-10 parts of mesh electric smelting spinelles, ɑ-AL2O34-8 parts, 5-8 parts of Aluminum sol, 0.05-0.15 parts of explosion-proof fiber, high efficiency water reducing agent
0.2-0.5 parts.
2. the safety permanent material layer of corundum compound type ladle inner wall according to claim 1, it is characterized in that：The material group
Become：The corundum gravity flow pouring material is made of materials described below by weight：12 parts of 8-5mm white fused aluminas, 10 parts of 5-3mm white fused aluminas,
15 parts of 3-1mm white fused aluminas, 325 8 parts of mesh white fused aluminas, 200 10 parts of mesh white fused aluminas, 325 7 parts of mesh electric smelting spinelles, ɑ-AL2O35 parts,
6 parts of Aluminum sol, 0.10 part of explosion-proof fiber, 0.3 part of high efficiency water reducing agent.
3. the safety permanent material layer of corundum compound type ladle inner wall according to claim 1, it is characterized in that：The material group
Become：The corundum gravity flow pouring material is made of materials described below by weight：14 parts of 8-5mm white fused aluminas, 11 parts of 5-3mm white fused aluminas,
17 parts of 3-1mm white fused aluminas, 325 9 parts of mesh white fused aluminas, 200 11 parts of mesh white fused aluminas, 325 8 parts of mesh electric smelting spinelles, ɑ-AL2O37 parts,
7 parts of Aluminum sol, 0.12 part of explosion-proof fiber, 0.4 part of high efficiency water reducing agent.
4. a kind of preparation method of the safety permanent material layer of claim 1-3 any one of them corundum compound type ladle inner wall,
Include the following steps：
A, first ladle shell is hung in and builds working position by laying bricks or stones, the sundries for wrapping bottom and containment wall cleaned out, then by air brick model
It is respectively put into ventilating seat brick and pocket block position with pocket block model；
B, the dry-mixed 4-8 clocks of kolleroang, after mixing, oneself of additional total weight 5.0-6.0 part is added in common alumina-magnesia castable
Water, rewetting is 5-6 minutes mixed, blendes together the preferable pureed mixture of mobility, which is poured into the packet bottom of ladle in batches, uses
Vibrating head vibrates warehouse, so that it is shakeout, is closely knit, constitutes packet bottom permanent layer；
C, butter is applied to permanent layer fetal membrane outer surface with hairbrush, packet bottom permanent layer ties natural curing 24 hours, makes packet bottom
Permanent layer, which has, to be taken out when some strength, again by air brick model and pocket block model and then the fetal membrane for coating oil is driven a vehicle
Hang in the adjustment of ladle shell, positioning；
D, the dry-mixed 4-8 clocks of kolleroang, after mixing, oneself of additional total weight 5.0-6.0 part is added in common alumina-magnesia castable
Water, rewetting is 5-6 minutes mixed, blendes together the preferable pureed mixture of mobility, which is poured into fetal membrane is constituted with shell
Cavity in, while the power supply of mould internal vibration device is opened, until being poured, when determining rapping according to ambient temperature and amount of water
Between, it is ensured that fetal membrane curing time can be demoulded smoothly for 48 hours, and demoulding natural curing 36 hours, first layer permanent layer making terminates；
E, gained ladle in Step d is toasted, obtains the permanent liner body of compound first layer；
F, the step of repeating the above a to e, and common alumina-magnesia castable is changed to the corundum gravity flow pouring material, it has obtained
The whole safety permanent material layer of corundum compound type ladle inner wall.
5. the preparation method of the safety permanent material layer of corundum compound type ladle inner wall according to claim 4, it is characterized in that：
When being poured into a mould in step d, after material is finished in mixer hopper, the stirring of the second bucket, until being poured, rapping are carried out immediately
Number 2 to 3 times.
6. the preparation method of the safety permanent material layer of corundum compound type ladle inner wall according to claim 4, it is characterized in that：
It is toasted described in step d and includes successively 100-200 ° of small fire 24 hours, 200-400 ° of small moderate heat 24 hours, 400-600 ° 18 of moderate heat
Hour, 600-800 ° of big fire 8 hours adds up 74 hours.
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| CN106631052A (en) * | 2016-09-26 | 2017-05-10 | 北京利尔高温材料股份有限公司 | Micropowder castable for working layer of ladle bottom impact zone |
| CN108044090A (en) * | 2018-01-19 | 2018-05-18 | 山东钢铁集团日照有限公司 | A kind of method for constructing bottom of steel ladle |
| CN108947501A (en) * | 2018-09-08 | 2018-12-07 | 洛阳科创新材料股份有限公司 | A kind of preparation method of long-life pocket block |
| CN115213390B (en) * | 2022-07-15 | 2023-06-23 | 武汉钢铁集团耐火材料有限责任公司 | Reinforced steel ladle lining construction method |
| CN115555554A (en) * | 2022-11-04 | 2023-01-03 | 南京钢铁股份有限公司 | Steel ladle bottom seepage-proofing steel pouring method |
| CN116375456B (en) * | 2023-03-10 | 2024-03-29 | 北京瑞普同创科技发展有限公司 | Pouring material for tundish cover |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103803996A (en) * | 2014-02-14 | 2014-05-21 | 山国强 | Large blast furnace main iron runner castable |
| CN104478453A (en) * | 2014-12-15 | 2015-04-01 | 巩义市红旗炉料有限公司 | Prefabricated continuous casting medium package flow returner and preparation method thereof |
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| JPH05213681A (en) * | 1992-01-31 | 1993-08-24 | Kawata Mfg Co Ltd | Fiber reinforced honeycomb ceramic body and its production |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103803996A (en) * | 2014-02-14 | 2014-05-21 | 山国强 | Large blast furnace main iron runner castable |
| CN104478453A (en) * | 2014-12-15 | 2015-04-01 | 巩义市红旗炉料有限公司 | Prefabricated continuous casting medium package flow returner and preparation method thereof |
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