CN108530042A - A kind of firing highly heatproof and shockproof bauxite brick and its production technology - Google Patents
A kind of firing highly heatproof and shockproof bauxite brick and its production technology Download PDFInfo
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- CN108530042A CN108530042A CN201810589077.5A CN201810589077A CN108530042A CN 108530042 A CN108530042 A CN 108530042A CN 201810589077 A CN201810589077 A CN 201810589077A CN 108530042 A CN108530042 A CN 108530042A
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- 229910001570 bauxite Inorganic materials 0.000 title claims abstract description 91
- 239000011449 brick Substances 0.000 title claims abstract description 77
- 238000010304 firing Methods 0.000 title claims abstract description 48
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 238000005516 engineering process Methods 0.000 title claims abstract description 7
- 239000000843 powder Substances 0.000 claims abstract description 86
- PNEYBMLMFCGWSK-UHFFFAOYSA-N AI2O3 Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 73
- GFQYVLUOOAAOGM-UHFFFAOYSA-N Zirconium(IV) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052845 zircon Inorganic materials 0.000 claims abstract description 24
- 229910052846 zircon Inorganic materials 0.000 claims abstract description 24
- 239000000203 mixture Substances 0.000 claims abstract description 23
- 229910052851 sillimanite Inorganic materials 0.000 claims abstract description 21
- 239000004927 clay Substances 0.000 claims abstract description 19
- 229910052570 clay Inorganic materials 0.000 claims abstract description 19
- 229910052878 cordierite Inorganic materials 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 15
- 238000003756 stirring Methods 0.000 claims abstract description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 17
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 17
- 239000004411 aluminium Substances 0.000 claims description 13
- 239000000047 product Substances 0.000 claims description 11
- 239000011265 semifinished product Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000000748 compression moulding Methods 0.000 claims description 7
- 235000007466 Corylus avellana Nutrition 0.000 claims description 4
- 240000007582 Corylus avellana Species 0.000 claims description 4
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 229940037003 alum Drugs 0.000 claims description 3
- 229910001884 aluminium oxide Inorganic materials 0.000 claims description 3
- 235000013312 flour Nutrition 0.000 claims 2
- 230000035939 shock Effects 0.000 abstract description 27
- 238000004321 preservation Methods 0.000 abstract 1
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Chemical group O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 11
- 239000002994 raw material Substances 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 239000000126 substance Substances 0.000 description 5
- 239000011819 refractory material Substances 0.000 description 4
- 229910001648 diaspore Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000010791 quenching Methods 0.000 description 3
- 230000000171 quenching Effects 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 241000723554 Pontia occidentalis Species 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N Silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 230000005496 eutectics Effects 0.000 description 2
- 230000001965 increased Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910002059 quaternary alloy Inorganic materials 0.000 description 2
- 229910052604 silicate mineral Inorganic materials 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 229910002058 ternary alloy Inorganic materials 0.000 description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N zirconium Chemical group [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- 239000005995 Aluminium silicate Substances 0.000 description 1
- PZZYQPZGQPZBDN-UHFFFAOYSA-N Aluminium silicate Chemical compound O=[Al]O[Si](=O)O[Al]=O PZZYQPZGQPZBDN-UHFFFAOYSA-N 0.000 description 1
- 229940108066 Coal Tar Drugs 0.000 description 1
- 206010011376 Crepitations Diseases 0.000 description 1
- CJNBYAVZURUTKZ-UHFFFAOYSA-N Hafnium(IV) oxide Chemical compound O=[Hf]=O CJNBYAVZURUTKZ-UHFFFAOYSA-N 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- 241000923606 Schistes Species 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- 235000012211 aluminium silicate Nutrition 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000011280 coal tar Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910001649 dickite Inorganic materials 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000002708 enhancing Effects 0.000 description 1
- 229910000449 hafnium oxide Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 1
- 229910000460 iron oxide Inorganic materials 0.000 description 1
- YDZQQRWRVYGNER-UHFFFAOYSA-N iron;titanium;trihydrate Chemical compound O.O.O.[Ti].[Fe] YDZQQRWRVYGNER-UHFFFAOYSA-N 0.000 description 1
- 229910052622 kaolinite Inorganic materials 0.000 description 1
- 235000021180 meal component Nutrition 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 239000011821 neutral refractory Substances 0.000 description 1
- 239000003605 opacifier Substances 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical class [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 239000002006 petroleum coke Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 229910052904 quartz Inorganic materials 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Classifications
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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
-
- 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
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
-
- 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
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3244—Zirconium oxides, zirconates, hafnium oxides, hafnates, or oxide-forming salts thereof
-
- 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
- C04B2235/3427—Silicates other than clay, e.g. water glass
- C04B2235/3463—Alumino-silicates other than clay, e.g. mullite
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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
- C04B2235/34—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
- C04B2235/3427—Silicates other than clay, e.g. water glass
- C04B2235/3463—Alumino-silicates other than clay, e.g. mullite
- C04B2235/3481—Alkaline earth metal alumino-silicates other than clay, e.g. cordierite, beryl, micas such as margarite, plagioclase feldspars such as anorthite, zeolites such as chabazite
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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
- C04B2235/30—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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- 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
Abstract
A kind of firing highly heatproof and shockproof bauxite brick of present invention offer and its production technology, are related to Industrial Stoves Material Field.A kind of firing highly heatproof and shockproof bauxite turn, includes the component of following parts by weight：52-58 parts of high alumina bauxite mixture, 15-20 parts of sillimanite powder, 8-12 parts of cordierite powder, 3-8 parts of alumina powder, 10-15 parts of Guangxi white clay, 1-5 part of zircon powder, 1-5 part of carbide fine powder.The production technology for firing highly heatproof and shockproof bauxite brick, includes the following steps：(1) it mixes, stir；(2) it suppresses, fire (3) heat preservation.Firing highly heatproof and shockproof bauxite brick provided by the invention, can effectively improve the thermal shock resistance of bauxite brick.
Description
Technical field
The present invention relates to Industrial Stoves Material Fields, and in particular to a kind of firing highly heatproof and shockproof bauxite brick and its production work
Skill.
Background technology
High-alumina brick is one kind of refractory material, and the main component of this fire proof material brick is Al2O3.Alumina content exists
A kind of 48% or more neutral refractory.By alumina or the higher raw material of other alumina contents through being molded and calcining.
Thermal stability is high, and refractoriness is at 1770 DEG C or more.Resistance to slag is preferable, for building steel-smelting electric furnace, glass-melting furnace, cement rotary furnace by laying bricks or stones
Deng lining.
Currently, existing high-alumina brick is typically alundum (Al2O3) (Al2O3) content, that is, aluminum content be 48% aluminosilicate property it is resistance to
Fiery material product.But existing high-alumina brick primary raw material is alumina, the glassy composition contained in alumina is when the temperature rises
Ternary system, quaternary system low melting point eutectic are easily generated, the thermal shock resistance of bauxite brick can be influenced.
Invention content
The present invention provides a kind of firing highly heatproof and shockproof bauxite brick, is existed with the glassy composition for solving to contain in above-mentioned alumina
The problem of temperature easily generates ternary system, quaternary system low melting point eutectic, can influence the thermal shock resistance of high-alumina brick when increasing.
To solve the above problems, the technical solution adopted by the present invention is as follows：
A kind of firing highly heatproof and shockproof bauxite turn, it is characterised in that：The firing highly heatproof and shockproof bauxite brick, including it is following
The component of parts by weight：52-58 parts of high alumina bauxite mixture, 15-20 parts of sillimanite powder, 8-12 parts of cordierite powder, aluminium oxide
3-8 parts of powder, 10-15 parts of Guangxi white clay, 1-5 part of zircon powder, 1-5 part of carbide fine powder.
Alumine, referred to as high aluminium material.The essential mineral of high aluminium material is diaspore and high alumina silica composition.Diaspore contains
Amount increases with the raising of the ratio of alundum (Al2O3) and silica.Secondary mineral are rutile, take off iron ore etc..Sometimes
Also contain a small amount of Baume stone and dickite.
Alumina is a kind of aluminum oxide ore, is in yellow to red because containing iron oxide, therefore also known as " bauxite ".Alumina is anti-
The ability that acid, basic clinker corrode is strong, and elevated temperature strength is high, is widely used in the industries such as steel, coloured, but its anti-chilling thermal energy power
Difference, high volume stability are bad, lead to the deformation and peeling of material, reduce the service life of material.
Sillimanite, also known as sillimanite, it is a kind of brown, light green color, light blue or white glassy silicate mineral.
The crystal of sillimanite be column or needle-shaped, these crystal condense together often in threadiness or it is radial, with silk gloss or
Glassy lustre.Mullite is become after sillimanite heating, is used as high grade refractory.
Cordierite is a kind of silicate mineral, is originated in schist, gneiss and alteration igneous rock, and fire resistance is good, is heated swollen
Swollen rate is low.
Aluminium oxide, chemical formula Al2O3.It is a kind of compound of high rigidity, fusing point is 2054 DEG C, and boiling point is 2980 DEG C, in height
Ionizable ionic crystals under temperature is usually used in manufacturing refractory material, and industrial alumina powder is by bauxite (Al2O3·3H2O) and
Prepared by diaspore.
Guangxi white clay is a kind of soft kaolin, can also be soft flame-proof clay.The ingredient of Guangxi white clay includes unordered
Kaolinite, quartz and micro ilmenite ores, and Guangxi white clay has the characteristics that good plasticity, good fluidity, associativity are good etc..
Zircon is natural mineral matter, is usually used in refractory material, and zircon also has lower thermal expansivity, higher leads
It is hot, and have stronger chemical stability, main component is zirconium dioxide.Zirconium dioxide, chemical formula ZrO2, it is zirconium
Main oxides are white odorless, tasteless crystal under usual condition, are insoluble in water, hydrochloric acid and dilute sulfuric acid.It is general often to contain on a small quantity
Hafnium oxide.Chemical property torpescence, and the property with high-melting-point, high resistivity, high refractive index and low thermal coefficient of expansion,
Important heat-resisting material, ceramic insulating material and ceramic opacifier are made it, is also the primary raw material manually bored.
Diamond dust also known as silicon carbide (are needed when production green silicon carbide with quartz sand, petroleum coke (or coal tar), sawdust
Add salt) etc. raw materials formed by resistance furnace pyrolytic semlting, stable chemical performance, thermal coefficient are high, coefficient of thermal expansion is small, wear-resisting
Performance is good.
Existing bauxite brick, generally using alumine and alumina as raw material, refractoriness is preferable, belongs to advanced fire proofed wood
Material, but alumina thermal shock resistance is poor, anti-chilling thermal energy force difference, high volume stability are bad, lead to the deformation and peeling of material,
Reduce the service life of material.
From the above problem, what the present invention innovated is found that the cooperation of zircon powder and alumina, can effectively improve aluminium
The thermal shock resistance of alumina brick.Firing highly heatproof and shockproof bauxite brick in the present invention, using high alumina bauxite mixture as primary raw material,
Expected supplemented by sillimanite powder, cordierite powder, alumina powder and Guangxi white clay, then is aided with zirconium dioxide to improve the anti-of bauxite brick
Thermal shock resistance.Alumina is arranged in pairs or groups in proportion with sillimanite powder, and the aobvious porosity of bauxite brick can be made suitably to increase, help to improve aluminium alum
The anti-scour property of cob brick.Cordierite powder is arranged in pairs or groups in proportion with high alumina bauxite mixture and zircon powder, can be appropriate
The thermal expansion for reducing bauxite brick, to effectively improve the thermal stability of bauxite brick.Alumina powder is mixed with high alumina bauxite
Material is arranged in pairs or groups in proportion, the aluminum content that can be effectively increased in bauxite brick, to improve the refractoriness of bauxite brick.Guangxi white clay
It arranges in pairs or groups in proportion with high alumina bauxite mixture, can effectively enhance the plasticity of high-alumina brick, contribute to being pressed into for high-alumina brick
Type.Contain a large amount of zirconium dioxides in zircon powder, zirconium dioxide has low thermal coefficient of expansion and preferable high temperature resistant property, zirconium
Diamond stone powder and high alumina bauxite mixture dispensing in proportion, repressed, burning process, the first one-step forming of bauxite brick, therein two
Zirconium oxide is undergone phase transition so that several fine cracks is formed inside cob brick, when temperature change generates thermal stress, these are small
Crackle can be such that the energy in refractory material is released, to improve the thermal shock resistance of bauxite brick.
Therefore, firing highly heatproof and shockproof bauxite brick provided by the invention, can effectively improve the anti-thermal shock of bauxite brick
Property.
In addition, cordierite powder is arranged in pairs or groups with zircon powder, sintering model can also be widened under the premise of not influencing thermal stability
It encloses.
To achieve the above object, the present invention also provides the production technologies of above-mentioned firing highly heatproof and shockproof bauxite brick, including with
Lower step：
(1) it mixes, stir：Proportionally sequentially add high alumina bauxite mixture, water, sillimanite powder, cordierite powder and
Alumina powder is mixed 10 minutes, adds Guangxi white clay, is mixed 10 minutes, obtains head product；
(2) it suppresses, fire：Head product is put into the laggard klining system of compression moulding in 400 tons of forcing presses, obtains semi-finished product；
(3) it keeps the temperature：Obtained semi-finished product are kept the temperature 24 hours to get to the firing highly heatproof and shockproof bauxite brick.
Simple production process, it is at low cost.
Further, the compacting in the step (2), fire be specially：After compression moulding, first at 130 degree Celsius
It under environment, dries 6 hours, enters back into 1450 degree of high-temperature region Celsius, fire 16 hours.
In conclusion by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
1. firing highly heatproof and shockproof bauxite brick provided by the invention, can effectively improve the thermal shock resistance of bauxite brick.
2. alumina powder, zircon powder are used cooperatively with high alumina bauxite mixture, bauxite brick can effectively improve
Refractoriness.
3. alumina is arranged in pairs or groups in proportion with sillimanite powder, the aobvious porosity of bauxite brick can be made suitably to increase, helped to improve
The anti-scour property of bauxite brick.
4. cordierite powder is arranged in pairs or groups with zircon powder, sintering range can also be widened under the premise of not influencing thermal stability.
5. simple production process, at low cost.
Specific implementation mode
All features disclosed in this specification can be with any other than mutually exclusive feature and/or step
Mode combines.
Embodiment 1
A kind of firing highly heatproof and shockproof bauxite turn, it is characterised in that：The firing highly heatproof and shockproof bauxite brick, including it is following
The component of parts by weight：52 parts of high alumina bauxite mixture, 15 parts of sillimanite powder, 8 parts of cordierite powder, 3 parts of alumina powder, Guangxi
10 parts of white clay, 1 part of zircon powder, 1 part of carbide fine powder.
Preparation method includes the following steps：
(1) it mixes, stir：Proportionally sequentially add high alumina bauxite mixture, water, sillimanite powder, cordierite powder, oxygen
Change aluminium powder, zircon powder and carbide fine powder, be mixed 10 minutes, add Guangxi white clay, is mixed 10 minutes, obtains
Head product；
(2) it suppresses, fire：Head product is put into the laggard klining system of compression moulding in 400 tons of forcing presses, obtains semi-finished product；
(3) it keeps the temperature：Obtained semi-finished product are kept the temperature 24 hours to get to the firing highly heatproof and shockproof bauxite brick.
Embodiment 2
A kind of firing highly heatproof and shockproof bauxite brick, it is characterised in that：The firing highly heatproof and shockproof bauxite brick, including it is following
The component of parts by weight：55 parts of high alumina bauxite mixture, 17 parts of sillimanite powder, 10 parts of cordierite powder, 5 parts of alumina powder, extensively
13 parts of western white clay, 2 parts of zircon powder, 3 parts of carbide fine powder.
Preparation method includes the following steps：
(1) it mixes, stir：Proportionally sequentially add high alumina bauxite mixture, water, sillimanite powder, cordierite powder, oxygen
Change aluminium powder, zircon powder and carbide fine powder, be mixed 10 minutes, add Guangxi white clay, is mixed 10 minutes, obtains
Head product；
(2) it suppresses, fire：Head product is put into the laggard klining system of compression moulding in 400 tons of forcing presses, obtains semi-finished product；
(3) it keeps the temperature：Obtained semi-finished product are kept the temperature 24 hours to get to the firing highly heatproof and shockproof bauxite brick.
Embodiment 3
A kind of firing highly heatproof and shockproof bauxite turn, it is characterised in that：The firing highly heatproof and shockproof bauxite brick, including it is following
The component of parts by weight：58 parts of high alumina bauxite mixture, 20 parts of sillimanite powder, 12 parts of cordierite powder, 8 parts of alumina powder, extensively
15 parts of western white clay, 5 parts of zircon powder, 5 parts of carbide fine powder.
Preparation method includes the following steps：
(1) it mixes, stir：Proportionally sequentially add high alumina bauxite mixture, water, sillimanite powder, cordierite powder, oxygen
Change aluminium powder, zircon powder and carbide fine powder, be mixed 10 minutes, add Guangxi white clay, is mixed 10 minutes, obtains
Head product；
(2) it suppresses, fire：Head product is put into the laggard klining system of compression moulding in 400 tons of forcing presses, obtains semi-finished product；
(3) it keeps the temperature：Obtained semi-finished product are kept the temperature 24 hours to get to the firing highly heatproof and shockproof bauxite brick.
Test example 1
1000 pieces of firing highly heatproof and shockproof bauxite bricks are produced in accordance with the above-mentioned embodiment 1, in obtained firing anti-thermal shock aluminium alum
In cob brick, 20 pieces are randomly choosed, is tested as steps described below：
The randomly selected heated end face for firing anti-thermal shock bauxite brick is extend into and is preheated to 50mm in 1100 DEG C of stove,
20min is kept, then the quenching 3min in room temperature water, is then dried, and detects its heated damaged general times of thermal cycle in end face,
To characterize its thermal shock resistance.
Acquired results are as shown in table 1：
Table 1. fires highly heatproof and shockproof bauxite brick thermal shock number table
It can be seen from the results above that the thermal shock number of the present invention for firing highly heatproof and shockproof bauxite brick reaches
100 times or more, there is a preferable anti-thermal shock effect.
Test example 2
(1) 1000 pieces of firing highly heatproof and shockproof bauxite bricks are produced according to above-described embodiment 2, in obtained firing anti-thermal shock aluminium
In alumina brick, 10 pieces are randomly choosed；
(2) in high-alumina brick 1000 piece of the purchase without zircon meal component on the market, 10 pieces are randomly choosed；
It is tested as steps described below：
The heated end face of randomly selected firing anti-thermal shock bauxite brick and bauxite brick is extend into and is preheated to 1100
DEG C stove in 50mm, keep 20min, then the quenching 3min in room temperature water, is then dried, and it is damaged general to detect its heated end face
Times of thermal cycle, to characterize its thermal shock resistance.
Acquired results are as shown in table 2：
The thermal shock number contrast table of table 2. present invention and market bauxite brick
It can be seen from the results above that the thermal shock number of the present invention for firing highly heatproof and shockproof bauxite brick is remote high
In the thermal shock number of existing high-alumina brick, so fully showing that zircon powder is used cooperatively with alumina, height can be greatly improved
The thermal shock resistance of aluminium brick.
Test example 3
In accordance with the above-mentioned embodiment 1, embodiment 2, embodiment 3 produce 1000 pieces of firing highly heatproof and shockproof bauxite bricks respectively,
In obtained firing anti-thermal shock bauxite brick, 10 pieces are randomly choosed respectively, is tested as steps described below：
The randomly selected heated end face for firing anti-thermal shock bauxite brick is extend into and is preheated to 50mm in 1100 DEG C of stove,
20min is kept, then the quenching 3min in room temperature water, is then dried, and detects its heated damaged general times of thermal cycle in end face,
To characterize its thermal shock resistance.
Acquired results are as shown in table 3：
The thermal shock number contrast table of the different firing highly heatproof and shockproof bauxite brick of 3. zircon powder content of table
It can be seen from the results above that suitable zircon powder is for improving the thermal shock resistance effect of bauxite brick more
It is good.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
It is any to be familiar with those skilled in the art in the technical scope of present disclosure, according to the technique and scheme of the present invention and its send out
Bright design is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (9)
1. a kind of firing highly heatproof and shockproof bauxite turns, it is characterised in that：The firing highly heatproof and shockproof bauxite brick, including it is following heavy
Measure the component of number：52-58 parts of high alumina bauxite mixture, 15-20 parts of sillimanite powder, 8-12 parts of cordierite powder, alumina powder 3
- 8 parts, 10-15 parts of Guangxi white clay, 1-5 part of zircon powder, 1-5 part of carbide fine powder.
2. firing highly heatproof and shockproof bauxite brick according to claim 1, it is characterised in that：The firing highly heatproof and shockproof aluminium alum
Cob brick includes the component of following parts by weight：55 parts of high alumina bauxite mixture, 17 parts of sillimanite powder, 10 parts of cordierite powder, oxygen
Change 5 parts of aluminium powder, 13 parts of Guangxi white clay, 2 parts of zircon powder, 3 parts of carbide fine powder.
3. firing highly heatproof and shockproof bauxite brick according to claim 1 or 2, it is characterised in that：The high alumina bauxite is mixed
Close the component that material includes following parts by weight：Granularity is 20 parts of the high alumina bauxite mixture of 3-5mm, and granularity is the height of 1-3mm
25 parts of aluminium bauxite mixture, granularity are 10 parts of the high alumina bauxite mixture of 0-1mm.
4. firing highly heatproof and shockproof bauxite brick according to claim 1 or 2, it is characterised in that：The high alumina bauxite is mixed
It closes and expects to be alumina, alumine according to 1:Fine powder through being ground up, sieved after 1 ratio mixing.
5. firing highly heatproof and shockproof bauxite brick according to claim 1 or 2, it is characterised in that：The sillimanite powder, violet are green
Mountain flour, alumina powder, Guangxi white clay, zircon powder, carbide fine powder granularity be respectively：0-0.5mm, 200-- mesh, 800 mesh,
250 mesh, 00.5mm and 00.1mm.
6. firing highly heatproof and shockproof bauxite brick according to claim 1 or 2, it is characterised in that：The high alumina bauxite is mixed
The aluminum content for closing material is no less than 75wt%.
7. firing highly heatproof and shockproof bauxite brick according to claim 1 or 2, it is characterised in that：The sillimanite powder, violet are green
Mountain flour, alumina powder aluminum content be respectively：Much with 57wt%, no less than 17wt% and no less than 98wt%.
8. a kind of claim 1-7 any one of them fires the production technology of highly heatproof and shockproof bauxite brick, it is characterised in that：Packet
Include following steps：
(1) it mixes, stir：Proportionally sequentially add high alumina bauxite mixture, water, sillimanite powder, cordierite powder, aluminium oxide
Powder, zircon powder and carbide fine powder are mixed 10 minutes, add Guangxi white clay, are mixed 10 minutes, obtain primiparity
Product；
(2) it suppresses, fire：Head product is put into the laggard klining system of compression moulding in 400 tons of forcing presses, obtains semi-finished product；
(3) it keeps the temperature：Obtained semi-finished product are kept the temperature 24 hours to get the firing highly heatproof and shockproof bauxite brick.
9. the production technology according to claim 8 for firing highly heatproof and shockproof bauxite brick, it is characterised in that：The step
(2) compacting, firing in are specially：After compression moulding, first in the environment of 130 degree Celsius, dries 6 hours, enter back into and take the photograph
The high-temperature region that 1450 degree of family name is fired 16 hours.
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