CN106587957A - 一种轻质耐火砖及其制备方法 - Google Patents
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- 239000011449 brick Substances 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 239000000843 powder Substances 0.000 claims abstract description 58
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 16
- DLHONNLASJQAHX-UHFFFAOYSA-N aluminum;potassium;oxygen(2-);silicon(4+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Si+4].[Si+4].[Si+4].[K+] DLHONNLASJQAHX-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000000654 additive Substances 0.000 claims abstract description 9
- 230000000996 additive effect Effects 0.000 claims abstract description 9
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims abstract description 9
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 8
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 27
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- YDEXUEFDPVHGHE-GGMCWBHBSA-L disodium;(2r)-3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Na+].[Na+].COC1=CC=CC(C[C@H](CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O YDEXUEFDPVHGHE-GGMCWBHBSA-L 0.000 claims description 3
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- 229910052863 mullite Inorganic materials 0.000 description 4
- 239000011819 refractory material Substances 0.000 description 3
- 229920005551 calcium lignosulfonate Polymers 0.000 description 2
- RYAGRZNBULDMBW-UHFFFAOYSA-L calcium;3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical group [Ca+2].COC1=CC=CC(CC(CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O RYAGRZNBULDMBW-UHFFFAOYSA-L 0.000 description 2
- 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 2
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Abstract
本发明公开了一种轻质耐火砖，由以下原料制成：钾长石细粉、石英石粉、三氧化二铝微粉、萤石细粉、二氧化钛粉、烧结粘土粉、橄榄石粉、添加剂；其制备方法为：(1)、按重量百分比称取上述原料后加水混合，然后均匀搅拌；(2)、向模具中加入搅拌后的混合料并锤捣，并使表面平整，自然放置后脱模在阴凉处晾置得待烧品；(3)、将所述待烧品在1500‑1600℃的温度下烧结得到耐火砖。有益效果：本发明的其隔热性能优异、具有较高的耐高温效果；而且本发明提供的轻质耐火砖还具有质轻、低导热和高强度的优良性能；本发明制备方法简单，原料丰富，适合工厂化生产。
Description
技术领域
本发明涉及耐火材料技术领域，尤其涉及一种轻质耐火砖及其制备方法。
背景技术
工业窑炉对轻质耐火材料需求量日益增大，窑炉热面内衬材料设计选材也越来越倾向于使用低容重耐高温轻质耐火砖。目前，工业窑炉热面衬里使用的耐火材料主要为耐火陶瓷纤维、轻质高铝砖、轻质莫来石砖和刚玉莫来石砖等。
以上各种耐火材料使用在不同温度的窑炉中，使用效果各有优劣。例如耐火陶瓷纤维使用在中低温窑炉热面衬里，节能效果显著但使用温度低；轻质高铝砖和轻质莫来石砖使用在中温窑炉热面衬里，节能效果较好但使用温度存在一定局限，使用温度较高但是成本以及能耗较高；刚玉莫来石砖使用温度虽然较高，但是体积密度较大，用其砌筑的炉衬蓄热量较大，炉体重量大，节能效果较差。
发明内容
本发明的目的在于提供一种轻质耐火砖及其制备方法，其隔热性能优异、具有较高的耐高温效果。
为了实现上述目的，本发明采用以下技术方案：
一种轻质耐火砖，包括下述重量份数的原料：
钾长石细粉20-35份、石英石粉20-25份、三氧化二铝微粉18-20份、萤石细粉5-8份、二氧化钛粉2-5份、烧结粘土粉5-10份、橄榄石粉5-7份、添加剂2-3份；
所述轻质耐火砖的制备方法包括以下步骤：
(1)、按重量百分比称取上述原料后加水混合，原料与水的质量比为5-8：1-2，然后均匀搅拌25-30min；
(2)、向模具中加入搅拌后的混合料并锤捣6-8min，并使表面平整，自然放置2-3h后脱模在阴凉处晾置2-3天得待烧品；
(3)、将所述待烧品在1500-1600℃的温度下烧结得到耐火砖。
所述钾长石细粉中Al2O3的质量含量为80-95％。
所述钾长石细粉、烧结粘土粉、萤石细粉的粒度在1.5-3mm
所述石英石粉、三氧化二铝微粉的粒度为2-4mm。
所述二氧化钛粉、橄榄石粉的粒度为1-1.5mm。
所述添加剂为木质素磺酸钙、木质素磺酸钠、丙烯酰胺、聚丙烯酰胺、聚丙烯酸铵中的任意一种或两种以上的混合物。
本发明的有益效果为：
本发明的其隔热性能优异、具有较高的耐高温效果；而且本发明提供的轻质耐火砖还具有质轻、低导热和高强度的优良性能；本发明制备方法简单，原料丰富，适合工厂化生产。
具体实施方式
以下结合具体实施例，对本发明作进一步的解释，并非对其保护范围的限制。
本发明中，若非特指，所采用的原料均可从市场购得或是本领域常用的，下述实施例中的方法，如无特别说明，均为本领域的常规方法。
实施例1
一种轻质耐火砖，包括下述重量份数的原料：
钾长石细粉20份、石英石粉20份、三氧化二铝微粉18份、萤石细粉5份、二氧化钛粉2份、烧结粘土粉5份、橄榄石粉5份、添加剂2份；
所述耐火砖的制备方法包括以下步骤：
(1)、按重量百分比称取上述原料后加水混合，原料与水的质量比为5-8：1-2，然后均匀搅拌25min；
(2)、向模具中加入搅拌后的混合料并锤捣6-8min，并使表面平整，自然放置2-3h后脱模在阴凉处晾置2天得待烧品；
(3)、将所述待烧品在1500-1600℃的温度下烧结得到耐火砖。
所述钾长石细粉中Al2O3的质量含量为80％。
所述钾长石细粉、烧结粘土粉、萤石细粉的粒度在1.5mm
所述石英石粉、三氧化二铝微粉的粒度为2mm。
所述二氧化钛粉、橄榄石粉的粒度为1mm。
所述添加剂为木质素磺酸钙、木质素磺酸钠、丙烯酰胺的混合物，其组分比例为1:1:1。
实施例2
一种轻质耐火砖，包括下述重量份数的原料：
钾长石细粉35份、石英石粉25份、三氧化二铝微粉20份、萤石细粉8份、二氧化钛粉5份、烧结粘土粉10份、橄榄石粉7份、添加剂3份；
所述耐火砖的制备方法包括以下步骤：
(1)、按重量百分比称取上述原料后加水混合，原料与水的质量比为5-8：1-2，然后均匀搅拌30min；
(2)、向模具中加入搅拌后的混合料并锤捣6-8min，并使表面平整，自然放置2-3h后脱模在阴凉处晾置3天得待烧品；
(3)、将所述待烧品在1500-1600℃的温度下烧结得到耐火砖。
所述钾长石细粉中Al2O3的质量含量为95％。
所述钾长石细粉、烧结粘土粉、萤石细粉的粒度在3mm
所述石英石粉、三氧化二铝微粉的粒度为4mm。
所述二氧化钛粉、橄榄石粉的粒度为1.5mm。
所述添加剂为丙烯酰胺、聚丙烯酰胺、聚丙烯酸铵的混合物，其组分比例为1:1:1。
以上对本发明的实施例进行了详细说明，但所述内容仅为本发明的较佳实施例，不能被认为用于限定本发明的实施范围。凡依本发明范围所作的均等变化与改进等，均应仍归属于本专利涵盖范围之内。
Claims (6)
1.一种轻质耐火砖，其特征在于，所述耐火砖包括下述重量份数的原料：
钾长石细粉20-35份、石英石粉20-25份、三氧化二铝微粉18-20份、萤石细粉5-8份、二氧化钛粉2-5份、烧结粘土粉5-10份、橄榄石粉5-7份、添加剂2-3份；
所述轻质耐火砖的制备方法包括以下步骤：
(1)、按重量百分比称取上述原料后加水混合，原料与水的质量比为5-8：1-2，然后均匀搅拌25-30min；
(2)、向模具中加入搅拌后的混合料并锤捣6-8min，并使表面平整，自然放置2-3h后脱模在阴凉处晾置2-3天得待烧品；
(3)、将所述待烧品在1500-1600℃的温度下烧结得到耐火砖。
2.根据权利要求1所述的轻质耐火砖及其制备方法，其特征在于：所述钾长石细粉中Al2O3的质量含量为80-95％。
3.根据权利要求1所述的轻质耐火砖及其制备方法，其特征在于：所述钾长石细粉、烧结粘土粉、萤石细粉的粒度在1.5-3mm。
4.根据权利要求1所述的轻质耐火砖及其制备方法，其特征在于：所述石英石粉、三氧化二铝微粉的粒度为2-4mm。
5.根据权利要求1所述的轻质耐火砖及其制备方法，其特征在于：所述二氧化钛粉、橄榄石粉的粒度为1-1.5mm。
6.根据权利要求1所述的轻质耐火砖及其制备方法，其特征在于：所述添加剂为木质素磺酸钙、木质素磺酸钠、丙烯酰胺、聚丙烯酰胺、聚丙烯酸铵中的任意一种或两种以上的混合物。
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