CN114014681A - 一种修复刚玉-莫来石推板的方法及修复粘结料 - Google Patents
一种修复刚玉-莫来石推板的方法及修复粘结料 Download PDFInfo
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- 229910052863 mullite Inorganic materials 0.000 title claims abstract description 22
- 239000011230 binding agent Substances 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000000843 powder Substances 0.000 claims abstract description 28
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 17
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 14
- 229910052849 andalusite Inorganic materials 0.000 claims abstract description 11
- RGPUVZXXZFNFBF-UHFFFAOYSA-K diphosphonooxyalumanyl dihydrogen phosphate Chemical compound [Al+3].OP(O)([O-])=O.OP(O)([O-])=O.OP(O)([O-])=O RGPUVZXXZFNFBF-UHFFFAOYSA-K 0.000 claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims abstract description 9
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 9
- 239000010431 corundum Substances 0.000 claims abstract description 9
- 239000002904 solvent Substances 0.000 claims abstract description 9
- 239000011347 resin Substances 0.000 claims abstract description 8
- 229920005989 resin Polymers 0.000 claims abstract description 8
- 238000005245 sintering Methods 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 6
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims description 6
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 4
- 229910001948 sodium oxide Inorganic materials 0.000 claims description 4
- 229910021487 silica fume Inorganic materials 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 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
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
本发明公开的是一种修复刚玉‑莫来石推板的方法及修复粘结料，其特征在于所述修复方法为，15～25wt％200目红柱石细粉,20～35wt％325目板状刚玉细粉,30～45wt％氧化铝微粉，5～10wt％氧化硅微粉为修复原料，与水溶性树脂、水、磷酸二氢铝组成的溶剂均匀混合,制成膏状的修复粘接料；将修复粘接料涂抹在刚玉—莫来石推板待修复的断面处,施加压力使断面两边的部分粘结固定,经120℃～150℃烘干4h即可投入使用，在推板窑内正常使用一次后，修复粘结料发生反应烧结,即完成修复。
Description
技术领域
本发明涉及耐火材料技术领域，尤其涉及一种修复刚玉-莫来石推板的方法及修复粘结料。
背景技术
由于热震原因，刚玉-莫来石推板在使用过程中，经常在正中间位置发生横向开裂(裂纹垂直于行进方向)，开裂成两半。这种方式开裂的推板，由于服役时间较短，显微结构未遭破坏，使用企业为了降低成本，经常简单拼凑后继续使用，容易发生错位导致堵窑事故的发生。
发明内容
针对现有技术的不足，本发明提供：一种修复刚玉-莫来石推板的方法及修复粘结料。
本发明解决其技术问题所采用的技术方案是：一种修复刚玉-莫来石推板的方法及修复粘结料，其特征在于所述修复方法为，15～25wt％200目红柱石细粉,20～35wt％325目板状刚玉细粉,30～45wt％氧化铝微粉，5～10wt％氧化硅微粉为修复原料，与水溶性树脂、水、磷酸二氢铝组成的溶剂均匀混合,制成膏状的修复粘接料；将修复粘接料涂抹在刚玉—莫来石推板待修复的断面处,施加压力使断面两边的部分粘结固定,经120℃～150℃烘干4h即可投入使用，在推板窑内正常使用一次后，修复粘结料发生反应烧结,即完成修复。
优选地、所述红柱石，氧化铝含量≥60％，氧化铁含量≤0.5％。
优选地、所述板状刚玉，氧化铝含量≥99.3％，氧化钠含量≤0.25％。
优选地、所述氧化铝微粉D50≤2um，氧化铝含量≥99.5％，氧化钠含量≤0.15％。
优选地、所述氧化硅微粉为非晶相硅灰，氧化硅含量≥96％，K2O+Na2O≤0.35％。
优选地所述溶剂配比为：水溶性树脂：水：磷酸二氢铝＝1:2:1，常温搅拌溶解得到。
与现有技术相比，本发明提供的一种修复刚玉-莫来石推板的方法及修复粘结料的有益效果是：
1.粘结剂中的红柱石组分高温下转化为莫来石和高硅玻璃相，高硅玻璃相与推板断面中的氧化铝成分发生化学反应，生成莫来石结合相，提高粘结剂与推板之间的结合。
2.红柱石的转化反应产生膨胀，抵消粘结剂烧结收缩。
3.溶剂中添加磷酸二氢铝，修复后的推板经120℃烘干后，强度较大，即可投入使用，在推板窑内正常使用一次后，修复粘结料发生反应烧结,即完成修复，节能降耗。
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，所描述的实施例仅是本发明的一部分实施例，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它实施例，都属于本发明保护的范围。
实施例1
15wt％200目红柱石细粉,35wt％325目板状刚玉细粉,35wt％氧化铝微粉，15wt％氧化硅微粉为修复原料，与水溶性树脂、水、磷酸二氢铝组成的溶剂均匀混合,制成膏状的修复粘接料；将修复粘接料涂抹在刚玉—莫来石推板待修复的断面处,施加压力使断面两边的部分粘结固定,经120℃烘干即可投入使用，在推板窑内正常使用一次后，修复粘结料发生反应烧结,即完成修复。
实施例2：
30wt％200目红柱石细粉,20wt％325目板状刚玉细粉,40wt％氧化铝微粉，10wt％氧化硅微粉为修复原料，与水溶性树脂、水、磷酸二氢铝组成的溶剂均匀混合,制成膏状的修复粘接料；将修复粘接料涂抹在刚玉—莫来石推板待修复的断面处,施加压力使断面两边的部分粘结固定,经120℃烘干即可投入使用，在推板窑内正常使用一次后，修复粘结料发生反应烧结,即完成修复。
实施例3
25wt％200目红柱石细粉,25wt％325目板状刚玉细粉,38wt％氧化铝微粉，12wt％氧化硅微粉为修复原料，与水溶性树脂、水、磷酸二氢铝组成的溶剂均匀混合,制成膏状的修复粘接料；将修复粘接料涂抹在刚玉—莫来石推板待修复的断面处,施加压力使断面两边的部分粘结固定,经120℃烘干即可投入使用，在推板窑内正常使用一次后，修复粘结料发生反应烧结,即完成修复。
以上内容是结合具体的优选实施方式对本发明所作的进一步详细说明，不能认定本发明的具体实施只局限于这些说明。对于本发明所属技术领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本发明的保护范围。
Claims (6)
1.一种修复刚玉-莫来石推板的方法及修复粘结料，其特征在于所述修复方法为，15～25wt％200目红柱石细粉,20～35wt％325目板状刚玉细粉,30～45wt％氧化铝微粉，5～10wt％氧化硅微粉为修复原料，与水溶性树脂、水、磷酸二氢铝组成的溶剂均匀混合,制成膏状的修复粘接料；将修复粘接料涂抹在刚玉—莫来石推板待修复的断面处,施加压力使断面两边的部分粘结固定,经120℃～150℃烘干4h即可投入使用，在推板窑内正常使用一次后，修复粘结料发生反应烧结,即完成修复。
2.根据权利要求1所述的一种修复刚玉-莫来石推板的方法及修复粘结料，其特征在于，所述红柱石，氧化铝含量≥60%，氧化铁含量≤0.5%。
3.根据权利要求1所述的一种修复刚玉-莫来石推板的方法及修复粘结料，其特征在于，所述板状刚玉，氧化铝含量≥99.3%，氧化钠含量≤0.25%。
4.根据权利要求1所述的一种修复刚玉-莫来石推板的方法及修复粘结料，其特征在于，所述氧化铝微粉D50≤2um，氧化铝含量≥99.5%，氧化钠含量≤0.15%。
5.根据权利要求1所述的一种修复刚玉-莫来石推板的方法及修复粘结料，其特征在于，所述氧化硅微粉为非晶相硅灰，氧化硅含量≥96%，K2O+Na2O≤0.35 %。
6.根据权利要求1所述的一种修复刚玉-莫来石推板的方法及修复粘结料，其特征在于，所述溶剂配比为：水溶性树脂：水：磷酸二氢铝=1:2:1，常温搅拌溶解得到。
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| 日照市自然资源和规划局: "《日照地质》", 31 December 2018 * |
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