CN106565223A - 高铝耐火砖 - Google Patents
高铝耐火砖 Download PDFInfo
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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 51
- 239000011449 brick Substances 0.000 title abstract description 14
- 239000000843 powder Substances 0.000 claims abstract description 51
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000010431 corundum Substances 0.000 claims abstract description 13
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 10
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052849 andalusite Inorganic materials 0.000 claims abstract description 8
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 8
- 239000010936 titanium Substances 0.000 claims abstract description 8
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 8
- 239000004115 Sodium Silicate Substances 0.000 claims abstract description 7
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052911 sodium silicate Inorganic materials 0.000 claims abstract description 7
- 239000000654 additive Substances 0.000 claims abstract description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract 2
- 230000000996 additive effect Effects 0.000 claims abstract 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- SHPBBNULESVQRH-UHFFFAOYSA-N [O-2].[O-2].[Ti+4].[Zr+4] Chemical compound [O-2].[O-2].[Ti+4].[Zr+4] SHPBBNULESVQRH-UHFFFAOYSA-N 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 7
- 239000010432 diamond Substances 0.000 claims description 6
- 229910003460 diamond 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 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- 229910052708 sodium Inorganic materials 0.000 claims 1
- 239000011734 sodium Substances 0.000 claims 1
- 238000009628 steelmaking Methods 0.000 abstract description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N ZrO2 Inorganic materials O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 abstract 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 abstract 1
- 239000011863 silicon-based powder Substances 0.000 abstract 1
- 238000003723 Smelting Methods 0.000 description 8
- 239000002893 slag Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 239000002585 base Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- PGZIKUPSQINGKT-UHFFFAOYSA-N dialuminum;dioxido(oxo)silane Chemical compound [Al+3].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O PGZIKUPSQINGKT-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
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 239000011821 neutral refractory Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 210000004127 vitreous body Anatomy 0.000 description 1
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- 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
- C04B35/106—Refractories from grain sized mixtures containing zirconium oxide or zircon (ZrSiO4)
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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
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
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- 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
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Abstract
本发明涉及一种高铝耐火砖，按照重量百分比的原料包括：电熔刚玉粉16~20％、板状刚玉12~16％、氧化铝微粉48~50％、镁砂细粉2~6％、二氧化锆粉2~6％、硅石粉1~4％、硅酸钠2~6％、红柱石粉2~6％、硼化钛添加剂1~2％。得到的高铝耐火砖的耐火度高达1800℃以上，且在高铝耐火砖在高温下炼钢电炉内使用不受腐蚀，使用年限也较长。
Description
技术领域
本发明涉及消防材料领域，具体涉及一种高铝耐火砖。
背景技术
高铝耐火砖，即氧化铝含量在48%以上的一种硅酸铝质耐火材料。由矾土或其他氧化铝含量较高的原料经成型和煅烧而成。热稳定性高，耐火度强。抗渣性较好。高铝耐火砖的优点是其耐火度比粘土砖和半硅砖的耐火度都要高，达1750℃，属于高级耐火材料，耐火度越高，性能越好。高铝砖中Al2O3较多，接近于中性耐火材料，能抵抗酸性渣和碱性渣的侵蚀，由于其中含有SiO2，所以抗碱性渣的能力比抗酸性渣的能力弱些。其缺点是因为高铝制品中Al2O3高，杂质量少，形成易熔的玻璃体少，所以荷重软化温度比粘土砖高，但因莫来石结晶未形成网状组织，故荷重软化温度没有硅砖高。由于现有的对炼钢电炉、玻璃熔炉的使用温度要求越来越高，即需要耐火度高达1800℃以上的高铝耐火砖加以砌筑，且由于炼钢电炉内的腐蚀性较大，如何增加高铝耐火砖的抗腐蚀性，增加高铝耐火砖的使用寿命成为高铝耐火砖的设计问题。
发明内容
本发明目的是提供一种高铝耐火砖，提高高铝耐火砖的耐高温能力，增强高铝耐火砖的使用寿命。
为了实现以上目的，本发明采用的技术方案为：一种高铝耐火砖，按照重量百分比的原料包括：电熔刚玉粉16~20％、板状刚玉12~16％、氧化铝微粉48~50％、镁砂细粉2~6％、二氧化锆粉2~6％、硅石粉1~4％、硅酸钠2~6％、红柱石粉2~6％、硼化钛添加剂1~2％。
优选的，电熔刚玉粉18％、板状刚玉14％、氧化铝微粉48％、镁砂细粉4％、二氧化锆粉4％、硅石粉3％、硅酸钠4％、红柱石粉4％、硼化钛添加剂1％。
进一步的，所述的电熔棕刚玉细粉中Al2O3 ≥ 90% ；Fe2O3≤ 0.5%。
进一步的，所述的电熔棕刚玉粉为200 目的粒度。
进一步的，所述的氧化铝微粉的粒度为≤ 5μm。
本发明的技术效果在于：通过对高铝耐火砖的材料配比进行优化，得到的高铝耐火砖的耐火度高达1800℃以上，且在高铝耐火砖在高温下炼钢电炉内使用不受腐蚀，使用年限也较长。
具体实施方式
下面将结合本发明实施例，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
实施例1：
一种高铝耐火砖，按照重量百分比的原料包括：电熔刚玉粉18％、板状刚玉14％、氧化铝微粉48％、镁砂细粉4％、二氧化锆粉4％、硅石粉3％、硅酸钠4％、红柱石粉4％、硼化钛添加剂1％。
进一步的，所述的电熔棕刚玉细粉中Al2O3 ≥ 90% ；Fe2O3≤ 0.5%。
进一步的，所述的电熔棕刚玉粉为200 目的粒度。
进一步的，所述的氧化铝微粉的粒度为≤ 5μm。
本实施例高铝耐火砖的制备方法：将上述原料与水的按质量比按4:1混合并均匀搅拌20-30 分钟；困料20 小时，随后送入模具中压制成型坯体；自然放置2h 后脱模在阴凉处晾置48 天得待烧品；在2000℃下焙烧保温12小时；自然冷却得到高铝耐火砖。得到的高铝耐火砖砌筑于炼钢电炉内，炼钢电炉使用温度均高于1800℃，两年后观察高铝耐火砖未受腐蚀。
实施例2：
一种高铝耐火砖，按照重量百分比的原料包括：电熔刚玉粉16％、板状刚玉16％、氧化铝微粉48％、镁砂细粉2％、二氧化锆粉5％、硅石粉1％、硅酸钠5％、红柱石粉5％、硼化钛添加剂2％。
进一步的，所述的电熔棕刚玉细粉中Al2O3 ≥ 90% ；Fe2O3≤ 0.5%。
进一步的，所述的电熔棕刚玉粉为200 目的粒度。
进一步的，所述的氧化铝微粉的粒度为≤ 5μm。
本实施例高铝耐火砖的制备方法：将上述原料与水的按质量比按4.5:1混合并均匀搅拌20-30 分钟；困料20 小时，随后送入模具中压制成型坯体；自然放置2h 后脱模在阴凉处晾置48 天得待烧品；在2000℃下焙烧保温12小时；自然冷却得到高铝耐火砖。得到的高铝耐火砖砌筑于炼钢电炉内，炼钢电炉使用温度均高于1800℃，两年后观察高铝耐火砖未受腐蚀。
实施例3：
一种高铝耐火砖，按照重量百分比的原料包括：电熔刚玉粉20％、板状刚玉12％、氧化铝微粉50％、镁砂细粉2％、二氧化锆粉4％、硅石粉1％、硅酸钠4％、红柱石粉5％、硼化钛添加剂52％。
进一步的，所述的电熔棕刚玉细粉中Al2O3 ≥ 90% ；Fe2O3≤ 0.5%。
进一步的，所述的电熔棕刚玉粉为200 目的粒度。
进一步的，所述的氧化铝微粉的粒度为≤ 5μm。
本实施例高铝耐火砖的制备方法：将上述原料与水的按质量比按4.5:1混合并均匀搅拌20-30 分钟；困料22 小时，随后送入模具中压制成型坯体；自然放置2h 后脱模在阴凉处晾置48 天得待烧品；在2100℃下焙烧保温12小时；自然冷却得到高铝耐火砖。得到的高铝耐火砖砌筑于炼钢电炉内，炼钢电炉使用温度均高于1800℃，两年后观察高铝耐火砖未受腐蚀。
对于本领域技术人员而言，显然本发明不限于上述示范性实施例的细节，而且在不背离本发明的精神或基本特征的情况下，能够以其他的具体形式实现本发明。
Claims (5)
1.一种高铝耐火砖，其特征在于，按照重量百分比的原料包括：电熔刚玉粉16~20％、板状刚玉12~16％、氧化铝微粉48~50％、镁砂细粉2~6％、二氧化锆粉2~6％、硅石粉1~4％、硅酸钠2~6％、红柱石粉2~6％、硼化钛添加剂1~2％。
2.根据权利要求1所述的高铝耐火砖，其特征在于：电熔刚玉粉18％、板状刚玉14％、氧化铝微粉48％、镁砂细粉4％、二氧化锆粉4％、硅石粉3％、硅酸钠4％、红柱石粉4％、硼化钛添加剂1％。
3.根据权利要求1所述的高铝耐火砖，其特征在于：所述的电熔棕刚玉粉中Al2O3 ≥90% ；Fe2O3≤ 0.5%。
4.根据权利要求1所述的高铝耐火砖，其特征在于：所述的电熔棕刚玉细粉为200 目的粒度。
5.根据权利要求1所述的高铝耐火砖，其特征在于：所述的氧化铝微粉粒度为≤ 5μm。
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| CN107235741A (zh) * | 2017-06-30 | 2017-10-10 | 长兴泓矿炉料有限公司 | 一种新型轻质耐火材料 |
| CN107382335A (zh) * | 2017-06-30 | 2017-11-24 | 徐州苏牌高温新材料有限公司 | 一种高强抗热震耐火砖 |
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