CN106396652A - 莫来石粉复合高铝纤维轻质耐火板的生产方法 - Google Patents
莫来石粉复合高铝纤维轻质耐火板的生产方法 Download PDFInfo
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- 239000000843 powder Substances 0.000 title claims abstract description 85
- 239000000835 fiber Substances 0.000 title claims abstract description 52
- 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 title claims abstract description 45
- 229910052863 mullite Inorganic materials 0.000 title claims abstract description 45
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 21
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 239000002131 composite material Substances 0.000 title abstract 4
- 239000011230 binding agent Substances 0.000 claims abstract description 52
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 44
- 238000005245 sintering Methods 0.000 claims abstract description 23
- 239000011268 mixed slurry Substances 0.000 claims abstract description 10
- 239000008367 deionised water Substances 0.000 claims abstract description 9
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 9
- 238000001035 drying Methods 0.000 claims abstract description 8
- 238000000465 moulding Methods 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000010453 quartz Substances 0.000 claims abstract 2
- 239000012467 final product Substances 0.000 claims description 13
- 229920001353 Dextrin Polymers 0.000 claims description 12
- 239000004375 Dextrin Substances 0.000 claims description 12
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 12
- 229920002472 Starch Polymers 0.000 claims description 12
- 229920002678 cellulose Polymers 0.000 claims description 12
- 239000001913 cellulose Substances 0.000 claims description 12
- 235000019425 dextrin Nutrition 0.000 claims description 12
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 12
- 239000008107 starch Substances 0.000 claims description 12
- 235000019698 starch Nutrition 0.000 claims description 12
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 7
- 239000000243 solution Substances 0.000 claims description 7
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 7
- 239000011259 mixed solution Substances 0.000 claims description 6
- 239000007800 oxidant agent Substances 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 5
- 238000010304 firing Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 235000019422 polyvinyl alcohol Nutrition 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 239000004575 stone Substances 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 7
- 239000011819 refractory material Substances 0.000 abstract description 2
- 239000002612 dispersion medium Substances 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 239000011449 brick Substances 0.000 description 6
- 235000010980 cellulose Nutrition 0.000 description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 238000001467 acupuncture Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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Abstract
本发明属于耐火材料技术领域,具体涉及一种莫来石粉复合高铝纤维轻质耐火板的生产方法。以莫来石细粉、石英细粉和α氧化铝细粉纤维为原料,以初始强度粘结剂和高温烧结强度粘结剂为复合结合剂,以去离子水为分散介质,制成混合料浆,经真空吸滤、高压成型、干燥、高温烧成制得莫来石粉复合高铝纤维轻质耐火板。本发明工艺简单,成本低,不需要复杂的设备,对环境无污染,耐温高可直接作为窑炉内衬使用。
Description
技术领域
本发明属于耐火材料技术领域,具体涉及一种莫来石粉复合高铝纤维轻质耐火板的生产方法。
背景技术
目前耐火保温材料主要有轻质粘土砖、聚轻球砖、轻质莫来石砖、氧化铝空心球砖等,比重大、生产工艺复杂,有粉尘污染,尺寸以标准砖为主230mm*114mm*65mm施工复杂,不能现场加工、导热系数大、保温效果差。
耐火纤维板,主要以硅酸铝纤维、多晶莫来石纤维为主,通过针刺或真空吸虑制成纤维毡或纤维板,但全部用全纤维制成,强度低、使用温度低、不能直接作为窑炉内衬使用。
发明内容
本发明的目的是提供一种莫来石粉复合高铝纤维轻质耐火板的生产方法,工艺简单,成本低,不需要复杂的设备,对环境无污染。
本发明所述的莫来石粉复合高铝纤维轻质耐火板的生产方法是以莫来石细粉、石英细粉和α氧化铝细粉纤维为原料,以初始强度粘结剂和高温烧结强度粘结剂为复合结合剂,以去离子水为分散介质,制成混合料浆,经真空吸滤、高压成型、干燥、高温烧成制得莫来石粉复合高铝纤维轻质耐火板。
所述的莫来石细粉、石英细粉和α氧化铝细粉纤维的质量比为3-5:2-4:1-3。
所述的初始强度粘结剂的制备方法是按照纤维素与水质量比2:6-8,聚乙烯醇与水质量比0.1:100-150,淀粉与水质量比3:5-8,糊精与水质量比2:6-8,分别配制溶液后再混合,即得。
所述的纤维素、聚乙烯醇、淀粉与糊精的质量比为2:0.1:3:2。
所述的高温烧结强度粘结剂的制备方法是将氧化钇与氧化锆混匀后,溶于水中,加入强氧化剂,浓缩至pH小于3,即得。
所述的复合结合剂的加入量为莫来石细粉、石英细粉和α氧化铝细粉纤维总质量的1-2%。
所述的初始强度粘结剂与高温烧结强度粘结剂的质量比为1:1。
本发明所述的莫来石粉复合高铝纤维轻质耐火板的生产方法,包括以下步骤:
(1)配制初始强度粘结剂:
按照纤维素与水质量比2:6-8,聚乙烯醇与水质量比0.1:100-150,淀粉与水质量比3:5-8,糊精与水质量比2:6-8,分别配制溶液后再混合,即得;
(2)配制高温烧结强度粘结剂:
将氧化钇与氧化锆混匀后,溶于水中,加入强氧化剂,浓缩至pH小于3,即得;
(3)配制混合溶液:
室温条件下,将莫来石细粉、石英细粉和α氧化铝细粉纤维加入到去离子水中搅拌均匀,再加入初始强度粘结剂和高温烧结强度粘结剂,混合均匀得到混合料浆;
(4)混合料浆进入模具,经真空吸滤、高压成型、干燥、烧成制得莫来石粉复合高铝纤维轻质耐火板。
步骤(4)中所述的干燥温度为100-300℃。
步骤(4)中所述的烧成温度为1000-1700℃。
步骤(4)中所述的模具尺寸为1100mm*500mm*50mm。
所述的高温烧结强度粘结剂为锆溶胶。
本发明与现有技术相比,具有如下有益效果:
(1)工艺简单,成本低;
(2)莫来石细粉、石英细粉和α氧化铝细粉纤维为原料,以初始强度粘结剂和高温烧结强度粘结剂为复合结合剂,以去离子水为分散介质,实现在水性状态下莫来石细粉、石英细粉、α氧化铝细粉,复合在纤维表面,形成共悬浮混合溶液;
(3)石英粉、α氧化铝高温烧成生成莫来石化,实现高强耐温;
(4)不需要复杂的设备,对环境无污染;
(5)制备纤维板砖尺寸大、可加工;
(6)耐温高可直接作为窑炉内衬使用。
具体实施方式
以下结合实施例对本发明做进一步描述。
实施例1
(1)配制初始强度粘结剂:
按照纤维素与水质量比2:6,聚乙烯醇与水质量比0.1:100,淀粉与水质量比3:5,糊精与水质量比2:6,纤维素、聚乙烯醇、淀粉与糊精的质量比为2:0.1:3:2,分别配制溶液后再混合,即得;
(2)配制高温烧结强度粘结剂:
将氧化钇与氧化锆混匀后,溶于水中,加入强氧化剂,浓缩至pH小于3,即得;
(3)配制混合溶液:
室温条件下,将莫来石细粉、石英细粉和α氧化铝细粉纤维加入到去离子水中搅拌均匀,莫来石细粉、石英细粉和α氧化铝细粉纤维的质量比为3:2:1;再加入初始强度粘结剂和高温烧结强度粘结剂,复合结合剂的加入量为莫来石细粉、石英细粉和α氧化铝细粉纤维总质量的1%,初始强度粘结剂与高温烧结强度粘结剂的质量比为1:1,混合均匀得到混合料浆;
(4)混合料浆进入模具,经真空吸滤、高压成型、干燥、烧成制得莫来石粉复合高铝纤维轻质耐火板;干燥温度为100℃,烧成温度为1000℃。
实施例2
(1)配制初始强度粘结剂:
按照纤维素与水质量比2:8,聚乙烯醇与水质量比0.1:150,淀粉与水质量比3:8,糊精与水质量比2:8,纤维素、聚乙烯醇、淀粉与糊精的质量比为2:0.1:3:2,分别配制溶液后再混合,即得;
(2)配制高温烧结强度粘结剂:
将氧化钇与氧化锆混匀后,溶于水中,加入强氧化剂,浓缩至pH小于3,即得;
(3)配制混合溶液:
室温条件下,将莫来石细粉、石英细粉和α氧化铝细粉纤维加入到去离子水中搅拌均匀,莫来石细粉、石英细粉和α氧化铝细粉纤维的质量比为5:4:3;再加入初始强度粘结剂和高温烧结强度粘结剂,复合结合剂的加入量为莫来石细粉、石英细粉和α氧化铝细粉纤维总质量的2%,初始强度粘结剂与高温烧结强度粘结剂的质量比为1:1,混合均匀得到混合料浆;
(4)混合料浆进入模具,经真空吸滤、高压成型、干燥、烧成制得莫来石粉复合高铝纤维轻质耐火板;干燥温度为300℃,烧成温度为1700℃。
实施例3
(1)配制初始强度粘结剂:
按照纤维素与水质量比2:7,聚乙烯醇与水质量比0.1:120,淀粉与水质量比3:6,糊精与水质量比2:7,纤维素、聚乙烯醇、淀粉与糊精的质量比为2:0.1:3:2,分别配制溶液后再混合,即得;
(2)配制高温烧结强度粘结剂:
将氧化钇与氧化锆混匀后,溶于水中,加入强氧化剂,浓缩至pH小于3,即得;
(3)配制混合溶液:
室温条件下,将莫来石细粉、石英细粉和α氧化铝细粉纤维加入到去离子水中搅拌均匀,莫来石细粉、石英细粉和α氧化铝细粉纤维的质量比为4:3:2;再加入初始强度粘结剂和高温烧结强度粘结剂,复合结合剂的加入量为莫来石细粉、石英细粉和α氧化铝细粉纤维总质量的1.5%,初始强度粘结剂与高温烧结强度粘结剂的质量比为1:1,混合均匀得到混合料浆;
(4)混合料浆进入模具,经真空吸滤、高压成型、干燥、烧成制得莫来石粉复合高铝纤维轻质耐火板;干燥温度为200℃,烧成温度为1500℃。
Claims (10)
1.一种莫来石粉复合高铝纤维轻质耐火板的生产方法,其特征在于以莫来石细粉、石英细粉和α氧化铝细粉纤维为原料,以初始强度粘结剂和高温烧结强度粘结剂为复合结合剂,以去离子水为分散介质,制成混合料浆,经真空吸滤、高压成型、干燥、高温烧成制得莫来石粉复合高铝纤维轻质耐火板。
2.根据权利要求1所述的莫来石粉复合高铝纤维轻质耐火板的生产方法,其特征在于所述的莫来石细粉、石英细粉和α氧化铝细粉纤维的质量比为3-5:2-4:1-3。
3.根据权利要求1所述的莫来石粉复合高铝纤维轻质耐火板的生产方法,其特征在于所述的初始强度粘结剂的制备方法是按照纤维素与水质量比2:6-8,聚乙烯醇与水质量比0.1:100-150,淀粉与水质量比3:5-8,糊精与水质量比2:6-8,分别配制溶液后再混合,即得。
4.根据权利要求3所述的莫来石粉复合高铝纤维轻质耐火板的生产方法,其特征在于所述的纤维素、聚乙烯醇、淀粉与糊精的质量比为2:0.1:3:2。
5.根据权利要求1所述的莫来石粉复合高铝纤维轻质耐火板的生产方法,其特征在于所述的高温烧结强度粘结剂的制备方法是将氧化钇与氧化锆混匀后,溶于水中,加入强氧化剂,浓缩至pH小于3,即得。
6.根据权利要求1所述的莫来石粉复合高铝纤维轻质耐火板的生产方法,其特征在于所述的复合结合剂的加入量为莫来石细粉、石英细粉和α氧化铝细粉纤维总质量的1-2%。
7.根据权利要求1所述的莫来石粉复合高铝纤维轻质耐火板的生产方法,其特征在于所述的初始强度粘结剂与高温烧结强度粘结剂的质量比为1:1。
8.根据权利要求1-7任一所述的莫来石粉复合高铝纤维轻质耐火板的生产方法,其特征在于包括以下步骤:
(1)配制初始强度粘结剂:
按照纤维素与水质量比2:6-8,聚乙烯醇与水质量比0.1:100-150,淀粉与水质量比3:5-8,糊精与水质量比2:6-8,分别配制溶液后再混合,即得;
(2)配制高温烧结强度粘结剂:
将氧化钇与氧化锆混匀后,溶于水中,加入强氧化剂,浓缩至pH小于3,即得;
(3)配制混合溶液:
室温条件下,将莫来石细粉、石英细粉和α氧化铝细粉纤维加入到去离子水中搅拌均匀,再加入初始强度粘结剂和高温烧结强度粘结剂,混合均匀得到混合料浆;
(4)混合料浆进入模具,经真空吸滤、高压成型、干燥、烧成制得莫来石粉复合高铝纤维轻质耐火板。
9.根据权利要求8所述的莫来石粉复合高铝纤维轻质耐火板的生产方法,其特征在于步骤(4)中所述的干燥温度为100-300℃。
10.根据权利要求8所述的莫来石粉复合高铝纤维轻质耐火板的生产方法,其特征在于步骤(4)中所述的烧成温度为1000-1700℃。
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