CN106396640A - Oxidation-resistant and high-strength magnesium-carbon brick and firing method thereof - Google Patents
Oxidation-resistant and high-strength magnesium-carbon brick and firing method thereof Download PDFInfo
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- CN106396640A CN106396640A CN201610776751.1A CN201610776751A CN106396640A CN 106396640 A CN106396640 A CN 106396640A CN 201610776751 A CN201610776751 A CN 201610776751A CN 106396640 A CN106396640 A CN 106396640A
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- waste material
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- magnesium
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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
- C04B35/03—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 magnesium oxide, calcium oxide or oxide mixtures derived from dolomite
- C04B35/04—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 magnesium oxide, calcium oxide or oxide mixtures derived from dolomite based on magnesium oxide
- C04B35/043—Refractories from grain sized mixtures
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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
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/62204—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products using waste materials or refuse
-
- 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
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/6303—Inorganic additives
-
- 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
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/632—Organic additives
- C04B35/634—Polymers
- C04B35/63448—Polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C04B35/6346—Polyesters
-
- 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
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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
- C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
- C04B2235/422—Carbon
- C04B2235/425—Graphite
-
- 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
- C04B2235/48—Organic compounds becoming part of a ceramic after heat treatment, e.g. carbonising phenol resins
Abstract
The invention discloses an oxidation-resistant and high-strength magnesium-carbon brick and a firing method thereof. The oxidation-resistant and high-strength magnesium-carbon brick comprises the following substances in parts by mass: magnesium-aluminum-carbon waste, micro-powder graphite, brown corundum waste, white corundum waste, a magnesium-aluminum binder, fused magnesia, resin and water. The oxidation-resistant and high-strength magnesium-carbon brick has the following advantages: 1, a production process is optimized, and through establishment of a mathematical model, an optimal preparation process of the magnesium-carbon brick is obtained; 2, during preparation of the high-strength magnesium-carbon brick, high-melting point alkaline oxide magnesium oxide (with the melting point of 2800 DEG C) and a high-melting point carbon material which is difficultly infiltrated by slag are used as raw materials, and a variety of non-oxide additives are added; 3, high slag corrosion resistance of the magnesium-aluminum-carbon waste and high heat conductivity and low expansion of the carbon are effectively utilized, and high-temperature peeling and slag penetration can be effectively prevented, so that structural peeling is avoided, a fatal shortcoming that the slag penetration of a magnesium refractory causes a deteriorated structure is greatly changed, and additionally, due to non-wetting performance of the carbon to the slag, the corrosion resistance is also good.
Description
Technical field
The present invention relates to a kind of anti-oxidant High Strength Magnesia-carbon Bricks and its method for cooking.
Background technology
Magnesia carbon refractory due to having the performance such as excellent resistance to slag and stable thermal shock resistance, therefore in all kinds of refinings
It is widely used as furnace lining material in steel stove.
But magnesia carbon refractory of the prior art can produce more obvious defect during sintering, therefore
The normal use in impact later stage.
Content of the invention
The technical problem to be solved in the present invention is to provide one kind to have preferably structural behaviour, and is easy to high-pressure molding and obtains
The anti-oxidant High Strength Magnesia-carbon Bricks obtaining and its method for cooking.
For solving the above problems, the present invention adopts the following technical scheme that：
A kind of anti-oxidant High Strength Magnesia-carbon Bricks, including the material composition of following mass fraction：
Magnalium carbon waste material 100-200 part
Micro powder graphite 4-6 part
Brown Alundum waste material 10-15 part
White fused alumina waste material 20-30 part
Magnalium cementing agent 10-15 part
Fused magnesite 500-600 part
Resin 100-300 part
Water 100-200 part.
Preferably, including the material composition of following mass fraction：200 parts of magnalium carbon waste material, 6 parts of micro powder graphite, Brown Alundum
10 parts of waste material, 30 parts of white fused alumina waste material, 10 parts of magnalium cementing agent, 600 parts of fused magnesite, 300 parts of resin, 200 parts of water.
Preferably, including the material composition of following mass fraction：200 parts of magnalium carbon waste material, 6 parts of micro powder graphite, Brown Alundum
15 parts of waste material, 20 parts of white fused alumina waste material, 15 parts of magnalium cementing agent, 600 parts of fused magnesite, 100 parts of resin, 200 parts of water.
Preferably, including the material composition of following mass fraction：150 parts of magnalium carbon waste material, 5 parts of micro powder graphite, Brown Alundum
12 parts of waste material, 25 parts of white fused alumina waste material, 12 parts of magnalium cementing agent, 600 parts of fused magnesite, 200 parts of resin, 150 parts of water.
A kind of method for cooking of anti-oxidant High Strength Magnesia-carbon Bricks, comprises the following steps：
1）Choose the material composition of following mass fraction：Magnalium carbon waste material 100-200 part, micro powder graphite 4-6 part, Brown Alundum waste material
10-15 part, white fused alumina waste material 20-30 part, magnalium cementing agent 10-15 part, fused magnesite 500-600 part, resin 100-300 part,
Water 100-200 part；Each selected above component is put into uniform stirring 15-25min in mixer, stands after the completion of stirring
10-15min, continues stirring 3-10min, after the completion of stirring, puts into and carry out high-pressure molding in mould, shaping completes after the completion of standing
Afterwards, take out and be air cooled to normal temperature, that is, obtain the anti-oxidant High Strength Magnesia-carbon Bricks of the present invention
The invention has the beneficial effects as follows：1st, optimized production process, obtains magnesia carbon brick by Mathematical Models and prepares optimised process；
2nd, prepare in High Strength Magnesia-carbon Bricks, with high-melting-point alkalescence oxides magnesium (2800 DEG C of fusing point) and be difficult to be invaded the height of profit by slag
Fusing point carbon materials, as raw material, adds various non-oxidized substance additives；3rd, the anti-slag efficiently utilizing magnalium carbon waste material is invaded
Erosion ability is strong and the high-termal conductivity of carbon and low expansion, can be effectively prevented that high temperature peels off and slag permeates, thus will not tie
Structure peels off, and significantly changes caused this deadly defect of deteriorated structure of the slag infiltration of magnesia refractories, carbon is to stove in addition
The nonwetting property of slag, corrosion resisting property is also good.
Specific embodiment
Below the preferred embodiments of the present invention are described in detail so that advantages and features of the invention can be easier to by
It will be appreciated by those skilled in the art that apparent clearly defining thus making to protection scope of the present invention.
A kind of anti-oxidant High Strength Magnesia-carbon Bricks, including the material composition of following mass fraction：
Magnalium carbon waste material 100-200 part
Micro powder graphite 4-6 part
Brown Alundum waste material 10-15 part
White fused alumina waste material 20-30 part
Magnalium cementing agent 10-15 part
Fused magnesite 500-600 part
Resin 100-300 part
Water 100-200 part.
A kind of method for cooking of anti-oxidant High Strength Magnesia-carbon Bricks, comprises the following steps：
1）Choose the material composition of following mass fraction：Magnalium carbon waste material 100-200 part, micro powder graphite 4-6 part, Brown Alundum waste material
10-15 part, white fused alumina waste material 20-30 part, magnalium cementing agent 10-15 part, fused magnesite 500-600 part, resin 100-300 part,
Water 100-200 part；Each selected above component is put into uniform stirring 15-25min in mixer, stands after the completion of stirring
10-15min, continues stirring 3-10min, after the completion of stirring, puts into and carry out high-pressure molding in mould, shaping completes after the completion of standing
Afterwards, take out and be air cooled to normal temperature, that is, obtain the anti-oxidant High Strength Magnesia-carbon Bricks of the present invention.
Embodiment 1
Choose the material composition of following mass fraction：200 parts of magnalium carbon waste material, 6 parts of micro powder graphite, 10 parts of Brown Alundum waste material, white
30 parts of corundum waste material, 10 parts of magnalium cementing agent, 600 parts of fused magnesite, 300 parts of resin, 200 parts of water.
Each selected above component is put into uniform stirring 15-25min in mixer, after the completion of stirring, stands 10-
15min, continues stirring 3-10min, after the completion of stirring, puts in mould and carry out high-pressure molding after the completion of standing, after the completion of shaping,
Taking-up is air cooled to normal temperature, that is, obtain the anti-oxidant High Strength Magnesia-carbon Bricks of the present invention.
After tested, by the anti-oxidant High Strength Magnesia-carbon Bricks that the present invention is obtained, there is preferably structural rigidity, it is to avoid can
To be effective against aoxidizing, high temperature can be effectively prevented simultaneously and peel off and slag infiltration, thus will not recurring structure peel off, meet and use
Need.
Embodiment 2
Choose the material composition of following mass fraction：200 parts of magnalium carbon waste material, 6 parts of micro powder graphite, 15 parts of Brown Alundum waste material, white
20 parts of corundum waste material, 15 parts of magnalium cementing agent, 600 parts of fused magnesite, 100 parts of resin, 200 parts of water.
Each selected above component is put into uniform stirring 15-25min in mixer, after the completion of stirring, stands 10-
15min, continues stirring 3-10min, after the completion of stirring, puts in mould and carry out high-pressure molding after the completion of standing, after the completion of shaping,
Taking-up is air cooled to normal temperature, that is, obtain the anti-oxidant High Strength Magnesia-carbon Bricks of the present invention.
After tested, by the anti-oxidant High Strength Magnesia-carbon Bricks that the present invention is obtained, there is preferably structural rigidity, it is to avoid can
To be effective against aoxidizing, high temperature can be effectively prevented simultaneously and peel off and slag infiltration, thus will not recurring structure peel off, meet and use
Need.
Embodiment 3
Choose the material composition of following mass fraction：Material composition including following mass fraction：150 parts of magnalium carbon waste material, micro-
5 parts of powder graphite, 12 parts of Brown Alundum waste material, 25 parts of white fused alumina waste material, 12 parts of magnalium cementing agent, 600 parts of fused magnesite, resin 200
Part, 150 parts of water.
Each selected above component is put into uniform stirring 15-25min in mixer, after the completion of stirring, stands 10-
15min, continues stirring 3-10min, after the completion of stirring, puts in mould and carry out high-pressure molding after the completion of standing, after the completion of shaping,
Taking-up is air cooled to normal temperature, that is, obtain the anti-oxidant High Strength Magnesia-carbon Bricks of the present invention.
After tested, by the anti-oxidant High Strength Magnesia-carbon Bricks that the present invention is obtained, there is preferably structural rigidity, it is to avoid can
To be effective against aoxidizing, high temperature can be effectively prevented simultaneously and peel off and slag infiltration, thus will not recurring structure peel off, meet and use
Need.
The invention has the beneficial effects as follows：1st, optimized production process, obtains magnesia carbon brick preparation by Mathematical Models optimal
Technique；2nd, prepare in High Strength Magnesia-carbon Bricks, with high-melting-point alkalescence oxides magnesium (2800 DEG C of fusing point) and be difficult to be invaded by slag
The high-melting-point carbon materials of profit, as raw material, adds various non-oxidized substance additives；3rd, efficiently utilize magnalium carbon waste material
Slag corrosion resistance ability is strong and the high-termal conductivity of carbon and low expansion, can be effectively prevented that high temperature peels off and slag permeates, thus will not
Recurring structure peels off, and significantly changes caused this deadly defect of deteriorated structure of the slag infiltration of magnesia refractories, in addition
The nonwetting property to slag for the carbon, corrosion resisting property is also good.
General principle, principal character and the advantages of the present invention of the present invention have been shown and described above.The technology of the industry
, it should be appreciated that the present invention is not restricted to the described embodiments, the simply explanation described in above-described embodiment and specification is originally for personnel
Invention principle, without departing from the spirit and scope of the present invention the present invention also have various changes and modifications, these change
Change and improvement both falls within scope of the claimed invention.Claimed scope by appending claims and its
Equivalent defines.
Claims (5)
1. a kind of anti-oxidant High Strength Magnesia-carbon Bricks it is characterised in that：Material composition including following mass fraction：
Magnalium carbon waste material 100-200 part
Micro powder graphite 4-6 part
Brown Alundum waste material 10-15 part
White fused alumina waste material 20-30 part
Magnalium cementing agent 10-15 part
Fused magnesite 500-600 part
Resin 100-300 part
Water 100-200 part.
2. anti-oxidant High Strength Magnesia-carbon Bricks according to claim 1 it is characterised in that：Material including following mass fraction
Composition：200 parts of magnalium carbon waste material, 6 parts of micro powder graphite, 10 parts of Brown Alundum waste material, 30 parts of white fused alumina waste material, magnalium cementing agent 10
Part, 600 parts of fused magnesite, 300 parts of resin, 200 parts of water.
3. anti-oxidant High Strength Magnesia-carbon Bricks according to claim 1 it is characterised in that：Material including following mass fraction
Composition：200 parts of magnalium carbon waste material, 6 parts of micro powder graphite, 15 parts of Brown Alundum waste material, 20 parts of white fused alumina waste material, magnalium cementing agent 15
Part, 600 parts of fused magnesite, 100 parts of resin, 200 parts of water.
4. anti-oxidant High Strength Magnesia-carbon Bricks according to claim 1 it is characterised in that：Material including following mass fraction
Composition：150 parts of magnalium carbon waste material, 5 parts of micro powder graphite, 12 parts of Brown Alundum waste material, 25 parts of white fused alumina waste material, magnalium cementing agent 12
Part, 600 parts of fused magnesite, 200 parts of resin, 150 parts of water.
5. a kind of method for cooking of the anti-oxidant High Strength Magnesia-carbon Bricks as any one of Claims 1-4, its feature exists
In：Comprise the following steps：
1）Choose the material composition of following mass fraction：Magnalium carbon waste material 100-200 part, micro powder graphite 4-6 part, Brown Alundum waste material
10-15 part, white fused alumina waste material 20-30 part, magnalium cementing agent 10-15 part, fused magnesite 500-600 part, resin 100-300 part,
Water 100-200 part；Each selected above component is put into uniform stirring 15-25min in mixer, stands after the completion of stirring
10-15min, continues stirring 3-10min, after the completion of stirring, puts into and carry out high-pressure molding in mould, shaping completes after the completion of standing
Afterwards, take out and be air cooled to normal temperature, that is, obtain the anti-oxidant High Strength Magnesia-carbon Bricks of the present invention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610776751.1A CN106396640A (en) | 2016-08-31 | 2016-08-31 | Oxidation-resistant and high-strength magnesium-carbon brick and firing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610776751.1A CN106396640A (en) | 2016-08-31 | 2016-08-31 | Oxidation-resistant and high-strength magnesium-carbon brick and firing method thereof |
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| Publication Number | Publication Date |
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| CN106396640A true CN106396640A (en) | 2017-02-15 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610776751.1A Pending CN106396640A (en) | 2016-08-31 | 2016-08-31 | Oxidation-resistant and high-strength magnesium-carbon brick and firing method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111996333A (en) * | 2020-08-28 | 2020-11-27 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for reducing oxidation of magnesia carbon brick of electric furnace |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1319484A (en) * | 2001-04-16 | 2001-10-31 | 陈忠贵 | Technology for producing antioxidation magnesite carbon brick |
| CN101851103A (en) * | 2009-04-03 | 2010-10-06 | 吴钦合 | Production method of environment-friendly and energy-saving type regenerative magnesia-carbon brick |
| CN102276266A (en) * | 2011-05-20 | 2011-12-14 | 山东柯信新材料有限公司 | Low-carbon magnesia carbon brick |
-
2016
- 2016-08-31 CN CN201610776751.1A patent/CN106396640A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1319484A (en) * | 2001-04-16 | 2001-10-31 | 陈忠贵 | Technology for producing antioxidation magnesite carbon brick |
| CN101851103A (en) * | 2009-04-03 | 2010-10-06 | 吴钦合 | Production method of environment-friendly and energy-saving type regenerative magnesia-carbon brick |
| CN102276266A (en) * | 2011-05-20 | 2011-12-14 | 山东柯信新材料有限公司 | Low-carbon magnesia carbon brick |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111996333A (en) * | 2020-08-28 | 2020-11-27 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for reducing oxidation of magnesia carbon brick of electric furnace |
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