CN107140956A - One kind burns till high-alumina refractory brick and preparation method thereof - Google Patents
One kind burns till high-alumina refractory brick and preparation method thereof Download PDFInfo
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- CN107140956A CN107140956A CN201710528075.0A CN201710528075A CN107140956A CN 107140956 A CN107140956 A CN 107140956A CN 201710528075 A CN201710528075 A CN 201710528075A CN 107140956 A CN107140956 A CN 107140956A
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- refractory brick
- alumina refractory
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- preparation
- granularity
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- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 239000011449 brick Substances 0.000 title claims abstract description 45
- 238000002360 preparation method Methods 0.000 title claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 45
- 239000002893 slag Substances 0.000 claims abstract description 25
- 239000000203 mixture Substances 0.000 claims abstract description 17
- 238000004898 kneading Methods 0.000 claims abstract description 14
- 238000012216 screening Methods 0.000 claims abstract description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 13
- HIGRAKVNKLCVCA-UHFFFAOYSA-N alumine Chemical compound C1=CC=[Al]C=C1 HIGRAKVNKLCVCA-UHFFFAOYSA-N 0.000 claims abstract description 12
- 230000032683 aging Effects 0.000 claims abstract description 7
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 17
- 239000004927 clay Substances 0.000 claims description 13
- 150000001875 compounds Chemical class 0.000 claims description 12
- 229910052593 corundum Inorganic materials 0.000 claims description 12
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 12
- 239000000126 substance Substances 0.000 claims description 10
- 229910052681 coesite Inorganic materials 0.000 claims description 6
- 229910052906 cristobalite Inorganic materials 0.000 claims description 6
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 6
- 229910052682 stishovite Inorganic materials 0.000 claims description 6
- 229910052905 tridymite Inorganic materials 0.000 claims description 6
- 229910001200 Ferrotitanium Inorganic materials 0.000 claims description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 3
- 238000003723 Smelting Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 16
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 abstract description 2
- 238000003756 stirring Methods 0.000 abstract 2
- 238000005516 engineering process Methods 0.000 description 8
- 239000002994 raw material Substances 0.000 description 8
- 230000003628 erosive effect Effects 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 6
- 230000003068 static effect Effects 0.000 description 6
- 241000723554 Pontia occidentalis Species 0.000 description 5
- 238000005245 sintering Methods 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 230000002742 anti-folding effect Effects 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000011819 refractory material Substances 0.000 description 3
- 241001417490 Sillaginidae Species 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 241001062472 Stokellia anisodon Species 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- ORVGYTXFUWTWDM-UHFFFAOYSA-N silicic acid;sodium Chemical group [Na].O[Si](O)(O)O ORVGYTXFUWTWDM-UHFFFAOYSA-N 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 235000019832 sodium triphosphate Nutrition 0.000 description 1
Classifications
-
- 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
-
- 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
- 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
-
- 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
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3418—Silicon oxide, silicic acids or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
-
- 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
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/349—Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
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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
- C04B2235/38—Non-oxide ceramic constituents or additives
- C04B2235/3817—Carbides
- C04B2235/3826—Silicon carbides
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- 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
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/54—Particle size related information
- C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
- C04B2235/5436—Particle size related information expressed by the size of the particles or aggregates thereof micrometer sized, i.e. from 1 to 100 micron
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/74—Physical characteristics
- C04B2235/77—Density
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
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- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
High-alumina refractory brick and preparation method thereof is burnt till the present invention relates to one kind.Its technical scheme is：Alumine is kneaded in planetary pressure kneading machine, the material A that granularity is 3 ~ 5mm is made in screening；Ferrotianium slag is kneaded in planetary pressure kneading machine, the material B that granularity is 0.088 ~ 2.5mm is made in screening.It is 1 ︰ (0.75 ~ 0.80) ︰ (0.05 ~ 0.10) ︰ (0.25 ~ 0.30) ︰ (0.30 ~ 0.35) dispensings by the mass ratio of material A ︰ material B ︰ Guangxi White Ni ︰ Tanization Gui ︰ ρ aluminum oxide, stir, add Ludox, stirring, ageing mixture, mechanical pressing, is stripped, and dries；Then 2 ~ 4 hours are incubated under the conditions of air atmosphere and 1480 ~ 1500 DEG C in Muffle furnace, cool to room temperature with the furnace, be made and burn till high-alumina refractory brick.The present invention has the characteristics of technique is simple and with low cost；It is prepared to burn till that high-alumina refractory brick consistency is high, high temperature break resistant intensity is big and resistance to slag corrosion is strong.
Description
Technical field
The invention belongs to high-alumina refractory brick technical field.Specifically related to one kind burns till high-alumina refractory brick and its preparation side
Method.
Background technology
High-alumina refractory brick is with Al2O3For the sizing refractory material of main chemical compositions, due to aluminum oxide not only fusing point
High, wear-resistant and intensity is big, and acid-resisting and basic clinker aggressivity are preferable, thus is widely used in blast furnace, hot-blast stove
With the liner body of the high temperature kiln such as rotary kiln.
A kind of " low-temperature burning high-aluminum refractory brick and preparation method thereof（CN200810049376.6）" patented technology, mainly
Using bauxite chamotte, schmigel, dry powder-shaped pyrophillite and dry powder-shaped fire clay as primary raw material, using traditional brickmaker
Skill：Mixing, mechanical pressing, body drying, enter klining into.Though burn till high alumina refractories firing temperature prepared by the technology
Low, energy-conserving and environment-protective, raw material sources are extensive and with low cost, but the technology uses sodium salt（Sodium tripolyphosphate, sodium carbonate and silicic acid
Sodium）For bonding agent, easily and Al2O3Eutectic phase is formed at high temperature, has had a strong impact on the elevated temperature strength for burning till high alumina refractories
With anti-scour property.
The content of the invention
It is contemplated that overcoming prior art defect, it is therefore an objective to provide a kind of technique and simply burn till high alumina with low cost
The preparation method of refractory brick, the consistency for burning till high-alumina refractory brick that is prepared with this method is high, high temperature break resistant intensity is big and
Resistance to slag corrosion is strong.
To achieve the above object, the technical solution adopted by the present invention is comprised the concrete steps that：
The first step, alumine is added kneaded 3 ~ 5 minutes in planetary pressure kneading machine, granularity is made for 3 ~ 5mm in screening
Material A.
Second step, will ferrotianium slag add it is planetary pressure kneading machine in knead 5 ~ 8 minutes, screening, be made granularity be 0.088
~ 2.5mm material B.
3rd step, the mass ratio of the ︰ Guangxi White Ni ︰ Tanization Gui ︰ of the material B as described in material A ︰ ρ-aluminum oxide are 1 ︰
(0.75 ~ 0.80) ︰ (0.05 ~ 0.10) ︰ (0.25 ~ 0.30) ︰ (0.30 ~ 0.35), by the material A, the material B, described wide
Western white clay, the carborundum and the ρ-aluminum oxide are added in mixer, are stirred 8 ~ 10 minutes, and premix is made.
4th step, added into the premix and account for the Ludox of the 5 ~ 6wt% of premix, stirred 3 ~ 5 minutes, ageing mixture
15 ~ 20 minutes, compound is made.
5th step, by the compound add mould in, it is compressing under the conditions of 90 ~ 100MPa, the demoulding, 90 ~ 110
DEG C condition is dried 3 ~ 5 hours；It is subsequently placed in Muffle furnace, 2 ~ 4 hours is incubated under the conditions of air atmosphere and 1480 ~ 1500 DEG C,
Cool to room temperature with the furnace, be made and burn till high-alumina refractory brick.
The main chemical compositions of the alumine are：Al2O3Content is 75 ~ 80wt%, SiO2Content is 3 ~ 5wt%, Fe2O3
Content≤3wt%, CaO content≤1.5wt%.
The ferrotianium slag is smelts the clinker produced by ferro-titanium, and the main chemical compositions of ferrotianium slag are：Al2O3Content
For 75 ~ 80wt%, TiO2Content is 8 ~ 10wt%, and CaO content is 5 ~ 8wt%.
The main chemical compositions of the Guangxi white clay are：Al2O3Content is 30 ~ 40wt%, SiO2Content is 45 ~ 50wt%,
Fe2O3Content≤2wt%；The granularity of the Guangxi white clay is 40 ~ 60 μm.
SiC content >=98wt% of the carborundum；The granularity of the carborundum is 40 ~ 60 μm.
The Al of the ρ-aluminum oxide2O3Content >=98wt%；The granularity of the ρ-aluminum oxide is 40 ~ 60 μm.
The SiO of the Ludox2Content is 15 ~ 20wt%.
Due to taking above-mentioned technical proposal, the present invention has following good effect compared with prior art：
1st, preparation technology of the present invention is simple, it is only necessary to by the mixing of the materials such as alumine, ferrotianium slag, ageing mixture and shaping, without special
Preparation equipment and complicated treatment technology, technique is simple, save human resources and energy consumption is small.
2nd, the present invention uses ferro-titanium to smelt produced clinker for raw material, realizes the recovery of solid waste resource again
Utilize, reduce further the preparation cost for burning till high-alumina refractory brick.
3rd, the present invention is combined using colloidal sol, is lifted the binding ability of raw material components, is conducive to raising to burn till High-Alumina fire resisting
The consistency of brick.
4th, the present invention is formed and made pottery by the mullitization in situ reaction and the oxidation of carborundum of raw material components in sintering process
Porcelain is combined, acceleration of sintering, is conducive to improving the elevated temperature strength for burning till high-alumina refractory brick and anti-scour property.
Prepared by the present invention burns till high-alumina refractory brick after measured：Bulk density is 3.3 ~ 3.4g/cm3；The anti-folding of high temperature is strong
(1400 DEG C × 0.5h) of degree is 6 ~ 8MPa；1400 DEG C × 3h Static crucible methods anti-slag experiment erosion index is 2 ~ 4%.
Therefore, the present invention has the characteristics of technique is simple and with low cost；The prepared cause for burning till high-alumina refractory brick
Density is high, high temperature break resistant intensity is big and resistance to slag corrosion is strong.
Embodiment
With reference to embodiment, the invention will be further described, not to the limitation of its protection domain.
It is first that the material Unify legislation involved by present embodiment is as follows to avoid repeating, no longer gone to live in the household of one's in-laws on getting married in embodiment
State：
The main chemical compositions of the alumine are：Al2O3Content is 75 ~ 80wt%, SiO2Content is 3 ~ 5wt%, Fe2O3Contain
Amount≤3wt%, CaO content≤1.5wt%.
The ferrotianium slag is smelts the clinker produced by ferro-titanium, and the main chemical compositions of ferrotianium slag are：Al2O3Content
For 75 ~ 80wt%, TiO2Content is 8 ~ 10wt%, and CaO content is 5 ~ 8wt%.
The main chemical compositions of the Guangxi white clay are：Al2O3Content is 30 ~ 40wt%, SiO2Content is 45 ~ 50wt%,
Fe2O3Content≤2wt%；The granularity of the Guangxi white clay is 40 ~ 60 μm.
SiC content >=98wt% of the carborundum；The granularity of the carborundum is 40 ~ 60 μm.
The Al of the ρ-aluminum oxide2O3Content >=98wt%；The granularity of the ρ-aluminum oxide is 40 ~ 60 μm.
The SiO of the Ludox2Content is 15 ~ 20wt%.
Embodiment 1
One kind burns till high-alumina refractory brick and preparation method thereof.It is the step of preparation method described in the present embodiment：
The first step, alumine is added kneaded 3 ~ 5 minutes in planetary pressure kneading machine, granularity is made for 3 ~ 5mm in screening
Material A.
Second step, will ferrotianium slag add it is planetary pressure kneading machine in knead 5 ~ 8 minutes, screening, be made granularity be 0.088
~ 2.5mm material B.
3rd step, the mass ratio of the ︰ Guangxi White Ni ︰ Tanization Gui ︰ of the material B as described in material A ︰ ρ-aluminum oxide are 1 ︰
(0.75 ~ 0.77) ︰ (0.05 ~ 0.07) ︰ (0.25 ~ 0.27) ︰ (0.30 ~ 0.32), by the material A, the material B, described wide
Western white clay, the carborundum and the ρ-aluminum oxide are added in mixer, are stirred 8 ~ 10 minutes, and premix is made.
4th step, added into the premix and account for the Ludox of the 5 ~ 5.4wt% of premix, stirred 3 ~ 5 minutes, be stranded
Material 15 ~ 20 minutes, is made compound.
5th step, by the compound add mould in, it is compressing under the conditions of 90 ~ 100MPa, the demoulding, 90 ~ 110
DEG C condition is dried 3 ~ 5 hours；It is subsequently placed in Muffle furnace, 2 ~ 4 hours is incubated under the conditions of air atmosphere and 1480 ~ 1495 DEG C,
Cool to room temperature with the furnace, be made and burn till high-alumina refractory brick.
It is manufactured in the present embodiment to burn till high-alumina refractory brick after measured：Bulk density is 3.3 ~ 3.34g/cm3；The anti-folding of high temperature
(1400 DEG C × 0.5h) of intensity is 6 ~ 6.8MPa；1400 DEG C × 3h Static crucible methods anti-slag experiment erosion index is 2 ~ 2.8%.
Embodiment 2
One kind burns till high-alumina refractory brick and preparation method thereof.It is the step of preparation method described in the present embodiment：
The first step, alumine is added kneaded 3 ~ 5 minutes in planetary pressure kneading machine, granularity is made for 3 ~ 5mm in screening
Material A.
Second step, will ferrotianium slag add it is planetary pressure kneading machine in knead 5 ~ 8 minutes, screening, be made granularity be 0.088
~ 2.5mm material B.
3rd step, the mass ratio of the ︰ Guangxi White Ni ︰ Tanization Gui ︰ of the material B as described in material A ︰ ρ-aluminum oxide are 1 ︰
(0.76 ~ 0.78) ︰ (0.06 ~ 0.08) ︰ (0.26 ~ 0.28) ︰ (0.31 ~ 0.33), by the material A, the material B, described wide
Western white clay, the carborundum and the ρ-aluminum oxide are added in mixer, are stirred 8 ~ 10 minutes, and premix is made.
4th step, added into the premix and account for the Ludox of the 5.2 ~ 5.6wt% of premix, stirred 3 ~ 5 minutes,
Ageing mixture 15 ~ 20 minutes, is made compound.
5th step, by the compound add mould in, it is compressing under the conditions of 90 ~ 100MPa, the demoulding, 90 ~ 110
DEG C condition is dried 3 ~ 5 hours；It is subsequently placed in Muffle furnace, 2 ~ 4 hours is incubated under the conditions of air atmosphere and 1480 ~ 1495 DEG C,
Cool to room temperature with the furnace, be made and burn till high-alumina refractory brick.
It is manufactured in the present embodiment to burn till high-alumina refractory brick after measured：Bulk density is 3.32 ~ 3.36g/cm3；High temperature resists
It is 6.4 ~ 7.2MPa to roll over (1400 DEG C × 0.5h) of intensity；1400 DEG C × 3h Static crucible methods anti-slag experiment erosion index be 2.4 ~
3.2%。
Embodiment 3
One kind burns till high-alumina refractory brick and preparation method thereof.It is the step of preparation method described in the present embodiment：
The first step, alumine is added kneaded 3 ~ 5 minutes in planetary pressure kneading machine, granularity is made for 3 ~ 5mm in screening
Material A.
Second step, will ferrotianium slag add it is planetary pressure kneading machine in knead 5 ~ 8 minutes, screening, be made granularity be 0.088
~ 2.5mm material B.
3rd step, the mass ratio of the ︰ Guangxi White Ni ︰ Tanization Gui ︰ of the material B as described in material A ︰ ρ-aluminum oxide are 1 ︰
(0.77 ~ 0.79) ︰ (0.07 ~ 0.09) ︰ (0.27 ~ 0.29) ︰ (0.32 ~ 0.34), by the material A, the material B, described wide
Western white clay, the carborundum and the ρ-aluminum oxide are added in mixer, are stirred 8 ~ 10 minutes, and premix is made.
4th step, added into the premix and account for the Ludox of the 5.4 ~ 5.8wt% of premix, stirred 3 ~ 5 minutes,
Ageing mixture 15 ~ 20 minutes, is made compound.
5th step, by the compound add mould in, it is compressing under the conditions of 90 ~ 100MPa, the demoulding, 90 ~ 110
DEG C condition is dried 3 ~ 5 hours；It is subsequently placed in Muffle furnace, 2 ~ 4 hours is incubated under the conditions of air atmosphere and 1485 ~ 1500 DEG C,
Cool to room temperature with the furnace, be made and burn till high-alumina refractory brick.
It is manufactured in the present embodiment to burn till high-alumina refractory brick after measured：Bulk density is 3.34 ~ 3.38g/cm3；High temperature resists
It is 6.8 ~ 7.6MPa to roll over (1400 DEG C × 0.5h) of intensity；1400 DEG C × 3h Static crucible methods anti-slag experiment erosion index be 2.8 ~
3.6%。
Embodiment 4
One kind burns till high-alumina refractory brick and preparation method thereof.It is the step of preparation method described in the present embodiment：
The first step, alumine is added kneaded 3 ~ 5 minutes in planetary pressure kneading machine, granularity is made for 3 ~ 5mm in screening
Material A.
Second step, will ferrotianium slag add it is planetary pressure kneading machine in knead 5 ~ 8 minutes, screening, be made granularity be 0.088
~ 2.5mm material B.
3rd step, the mass ratio of the ︰ Guangxi White Ni ︰ Tanization Gui ︰ of the material B as described in material A ︰ ρ-aluminum oxide are 1 ︰
(0.78 ~ 0.80) ︰ (0.08 ~ 0.10) ︰ (0.28 ~ 0.30) ︰ (0.33 ~ 0.35), by the material A, the material B, described wide
Western white clay, the carborundum and the ρ-aluminum oxide are added in mixer, are stirred 8 ~ 10 minutes, and premix is made.
4th step, added into the premix and account for the Ludox of the 5.6 ~ 6wt% of premix, stirred 3 ~ 5 minutes, be stranded
Material 15 ~ 20 minutes, is made compound.
5th step, by the compound add mould in, it is compressing under the conditions of 90 ~ 100MPa, the demoulding, 90 ~ 110
DEG C condition is dried 3 ~ 5 hours；It is subsequently placed in Muffle furnace, 2 ~ 4 hours is incubated under the conditions of air atmosphere and 1485 ~ 1500 DEG C,
Cool to room temperature with the furnace, be made and burn till high-alumina refractory brick.
It is manufactured in the present embodiment to burn till high-alumina refractory brick after measured：Bulk density is 3.36 ~ 3.4g/cm3；The anti-folding of high temperature
(1400 DEG C × 0.5h) of intensity is 7.2 ~ 8MPa；1400 DEG C × 3h Static crucible methods anti-slag experiment erosion index is 3.2 ~ 4%.
Present embodiment has following good effect compared with prior art：
1st, present embodiment preparation technology is simple, it is only necessary to by the mixing of the materials such as alumine, ferrotianium slag, ageing mixture and shaping,
Without special Preparation equipment and complicated treatment technology, technique is simple, save human resources and energy consumption is small.
2nd, present embodiment uses ferro-titanium to smelt produced clinker for raw material, realizes solid waste resource
Recycling, reduce further the preparation cost for burning till high-alumina refractory brick.
3rd, present embodiment is combined using colloidal sol, is lifted the binding ability of raw material components, is conducive to raising to burn till height
The consistency of aluminous fire brick.
4th, in situ mullitization reaction and the oxygen of carborundum of the present embodiment by raw material components in sintering process
Change forms ceramic phase combination, and acceleration of sintering is conducive to improving the elevated temperature strength for burning till high-alumina refractory brick and anti-scour property.
Prepared by present embodiment burns till high-alumina refractory brick after measured：Bulk density is 3.3 ~ 3.4g/cm3；It is high
Warm (1400 DEG C × 0.5h) of rupture strength is 6 ~ 8MPa；1400 DEG C × 3h Static crucible methods anti-slag experiment erosion index is 2 ~ 4%.
Therefore, present embodiment has the characteristics of technique is simple and with low cost；It is prepared that to burn till High-Alumina resistance to
The consistency of firebrick is high, high temperature break resistant intensity is big and resistance to slag corrosion is strong.
Claims (8)
1. a kind of preparation method for burning till high-alumina refractory brick, it is characterised in that the preparation method is comprised the concrete steps that：
The first step, alumine is added kneaded 3 ~ 5 minutes in planetary pressure kneading machine, granularity is made for 3 ~ 5mm in screening
Material A；
Second step, will ferrotianium slag add it is planetary pressure kneading machine in knead 5 ~ 8 minutes, screening, be made granularity be 0.088 ~
2.5mm material B；
3rd step, the ︰ Guangxi White Ni ︰ Tanization Gui ︰ of the material B as described in material A ︰ ρ-aluminum oxide mass ratio for 1 ︰ (0.75 ~
0.80) ︰ (0.05 ~ 0.10) ︰ (0.25 ~ 0.30) ︰ (0.30 ~ 0.35), by the material A, the material B, the Guangxi white clay,
The carborundum and the ρ-aluminum oxide are added in mixer, are stirred 8 ~ 10 minutes, and premix is made；
4th step, added into the premix and account for the Ludox of the 5 ~ 6wt% of premix, stirred 3 ~ 5 minutes, ageing mixture 15 ~ 20
Minute, compound is made；
5th step, by the compound add mould in, it is compressing under the conditions of 90 ~ 100MPa, the demoulding, in 90 ~ 110 DEG C of bars
Part is dried 3 ~ 5 hours；It is subsequently placed in Muffle furnace, 2 ~ 4 hours is incubated under the conditions of air atmosphere and 1480 ~ 1500 DEG C, with stove
Room temperature is cooled to, is made and burns till high-alumina refractory brick.
2. the preparation method according to claim 1 for burning till high-alumina refractory brick, it is characterised in that the alumine
Main chemical compositions are：Al2O3Content is 75 ~ 80wt%, SiO2Content is 3 ~ 5wt%, Fe2O3Content≤3wt%, CaO content≤
1.5wt%。
3. the preparation method according to claim 1 for burning till high-alumina refractory brick, it is characterised in that the ferrotianium slag is smelting
The clinker produced by ferro-titanium is refined, the main chemical compositions of ferrotianium slag are：Al2O3Content is 75 ~ 80wt%, TiO2Content be 8 ~
10wt%, CaO content is 5 ~ 8wt%.
4. the preparation method according to claim 1 for burning till high-alumina refractory brick, it is characterised in that the Guangxi white clay
Main chemical compositions are：Al2O3Content is 30 ~ 40wt%, SiO2Content is 45 ~ 50wt%, Fe2O3Content≤2wt%；The Guangxi
The granularity of white clay is 40 ~ 60 μm.
5. the preparation method according to claim 1 for burning till high-alumina refractory brick, it is characterised in that the SiC of the carborundum
Content >=98wt%；The granularity of the carborundum is 40 ~ 60 μm.
6. the preparation method according to claim 1 for burning till high-alumina refractory brick, it is characterised in that the ρ-aluminum oxide
Al2O3Content >=98wt%；The granularity of the ρ-aluminum oxide is 40 ~ 60 μm.
7. the preparation method according to claim 1 for burning till high-alumina refractory brick, it is characterised in that the SiO of the Ludox2
Content is 15 ~ 20wt%.
8. one kind burns till high-alumina refractory brick, it is characterised in that the high-alumina refractory brick that burns till is according to claim 1 ~ 7
Any one of burn till and burn till high-alumina refractory brick prepared by the preparation method of high-alumina refractory brick.
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| CN107266052A (en) * | 2017-07-10 | 2017-10-20 | 武汉科技大学 | Alumina titanium calcium aluminate carborundum multiple phase refractory material and preparation method thereof |
| CN108484186A (en) * | 2018-04-11 | 2018-09-04 | 武汉科技大学 | A kind of titanium calcium aluminate-silicon carbide multiple phase refractory material and preparation method thereof |
| CN110436900A (en) * | 2019-09-05 | 2019-11-12 | 中国地质大学（北京） | It is a kind of using ferrotianium slag as aluminum fire resistant materials of primary raw material and preparation method thereof |
| CN111925222A (en) * | 2020-08-05 | 2020-11-13 | 辽宁科技大学 | Method for preparing refractory ball for hot blast furnace by using aluminum titanium slag |
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| CN101239830A (en) * | 2008-03-19 | 2008-08-13 | 巩义市金岭耐火材料有限公司 | Low-temperature burning high-aluminum refractory brick and preparation method thereof |
| CN102503473A (en) * | 2011-10-26 | 2012-06-20 | 河南省耕生耐火材料有限公司 | High-aluminum prefabricated part toughened by in-situ generated SiC and preparation method thereof |
| CN103922772A (en) * | 2014-04-22 | 2014-07-16 | 武汉科技大学 | Reproducible high-aluminum fireproof raw material utilizing ferrotitanium slag as main material and preparation method thereof |
| CN106747526A (en) * | 2017-03-01 | 2017-05-31 | 武汉科技大学 | A kind of Al2O3‑TiO2CaO systems complex phase fireclay insulating refractory and preparation method thereof |
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| CN101239830A (en) * | 2008-03-19 | 2008-08-13 | 巩义市金岭耐火材料有限公司 | Low-temperature burning high-aluminum refractory brick and preparation method thereof |
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| CN108484186A (en) * | 2018-04-11 | 2018-09-04 | 武汉科技大学 | A kind of titanium calcium aluminate-silicon carbide multiple phase refractory material and preparation method thereof |
| CN110436900A (en) * | 2019-09-05 | 2019-11-12 | 中国地质大学（北京） | It is a kind of using ferrotianium slag as aluminum fire resistant materials of primary raw material and preparation method thereof |
| CN111925222A (en) * | 2020-08-05 | 2020-11-13 | 辽宁科技大学 | Method for preparing refractory ball for hot blast furnace by using aluminum titanium slag |
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Effective date of registration: 20220927 Address after: North of Kui'er Village, Kunlun Town, Zichuan District, Zibo City, Shandong Province, 255000 Patentee after: ZIBO HENGSEN REFRACTORIES Co.,Ltd. Address before: 430081 No. 947 Heping Avenue, Qingshan District, Hubei, Wuhan Patentee before: WUHAN University OF SCIENCE AND TECHNOLOGY Patentee before: JIANGSU JINGXIN NEW MATERIAL Co.,Ltd. |