CN102134164B - 高温耐磨修补涂料及其制备方法 - Google Patents

高温耐磨修补涂料及其制备方法 Download PDF

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CN102134164B
CN102134164B CN 201010018253 CN201010018253A CN102134164B CN 102134164 B CN102134164 B CN 102134164B CN 201010018253 CN201010018253 CN 201010018253 CN 201010018253 A CN201010018253 A CN 201010018253A CN 102134164 B CN102134164 B CN 102134164B
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temperature wear
repairing coating
component
resistant repairing
resistant
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CN102134164A (zh
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林国强
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Guoqiang Furnace Industry Co Ltd Yixing
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Guoqiang Furnace Industry Co Ltd Yixing
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Priority to CN 201010018253 priority Critical patent/CN102134164B/zh
Priority to PCT/CN2011/000080 priority patent/WO2011088742A1/zh
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Abstract

本发明涉及一种高温耐磨修补涂料及其制备方法，由甲料和乙料按重量份配比70～85∶30～15组成，甲料由锆刚玉细粉、蓝晶石、钛酸铝、硅微粉、镁锆砂、氧化铝微粉、纯铝酸钙水泥、三聚磷酸钠、电熔铬酸钙、锌铝尖晶石制备而成；乙料由磷酸、油墨级氢氧化铝、氯化铝、钇基稳定锆、硼砂、中温烧结剂制备而成，本产品具有优异的耐磨性，抗侵蚀性，耐冲刷性，热震稳定性及高粘结性，使用本产品后循环流化床锅炉运转周期从约3500小时提高到累计运行18000小时以上，克服了锅炉内衬需要经常修补更换的问题，节省了解人力物力，大大提高了生产效率。

Description

高温耐磨修补涂料及其制备方法
技术领域
本发明涉及耐火材料技术领域，尤其涉及一种518高温耐磨修补涂料，用于火力发电厂循环流化床锅炉中修复各耐磨砖、耐磨浇注损坏部位的快速修补料，同时提供这种高温耐磨修补涂料的制造方法。
背景技术
循环流化床锅炉技术是目前公认的清洁煤燃烧技术，由于循环流化床发电锅炉施工体系复杂，施工量大，系统管道内煤粉流速高，流量大，因此对耐火材料要求性能优异。但是目前在循环流化床锅炉中通常使用的耐火材料采用高铝熟料或白刚玉原料，水泥含量高，其耐磨性、抗浸蚀性、耐冲刷性及热震稳定性都不能满足循环流化床锅炉技术的要求，使用周期短，需要经常修补或更换，影响循环流化床锅炉的正常运转，消耗大量人力和财力。
本发明人先前申请的中国专利200810243011.7公开了一种高温耐磨涂料，该涂料解决了水泥含量高，并且耐压强度在高温烘烤后比高铝耐磨烧注料或白刚玉耐磨烧注料具有明显的提高，但抗折强度要比白刚玉耐磨烧注料低，所以在修复各耐磨砖、耐磨浇注损坏部位时使用寿命短，现有技术存在缺陷，有待改进。
发明内容
本发明的目的是，针对现有技术存在的问题提供了一种耐压强度和抗折强度高，使用寿命更长的高温耐磨修补涂料及其制备方法。
本发明的技术方案如下：一种高温耐磨修补涂料，由甲料和乙料按重量份配比70～85∶30～15组成，其特征在于：
所述甲料各组份重量百分配比为：
Figure GSB00000964374600021
所述的高温耐磨修补涂料，其中，所述蓝晶石细度为180目～220目，硅微粉采用硅含量≥98％的埃肯硅微粉，镁锆砂中氧化镁含量为90％，钛酸铝中二氧化钛含量为40％。
所述的高温耐磨修补涂料，其中，所述的乙料组份中磷酸的浓度为85％，氯化铝细度为0.008～0.05mm，烧结剂采用中低温可烧结的烧结剂。
所述的高温耐磨修补涂料，其中，所述烧结剂为硅酸盐、硼酸、二氧化硅微粉、氧化镍，硅溶胶和甘油中的一种或二种以上复合。
本发明的高温耐磨修补涂料的制备方法，按上述甲料和乙料的重量百分配比，将甲料各组份按配比秤量后搅拌均匀混合后入袋封装，将乙料各组份按配比秤量，均匀混合反应后用塑料桶桶装，施工前将A料与B料按重量份配比70～85∶30～15比例搅拌混合。
本发明有益效果为：本发明采用上述技术方案后，使高温耐磨修补涂料具有很高的耐压强度，硬度较大，莫氏硬度高于10,1790℃烧结3小时磨损量低于4/cm3，致密度高，具有优异的耐磨性，抗侵蚀性，耐冲刷性，热震稳定性及高粘结性。在相同条件下，和目前本领域使用的浇注料比较，循环流化床锅炉运转周期从约3500小时提高到累计运行18000小时以上，克服了锅炉内衬需要经常修补更换的问题，节省了解人力物力，大大提高了生产效率。
具体实施方式
本发明所提供的用于循环流化床锅炉的高温耐磨修补涂料，采用三种不同粒度的锆刚玉细粉，蓝晶石，钛酸铝，镁锆砂，硅含量为98％以上的埃肯硅微粉，纯铝酸钙水泥，氧化铝微粉，电熔铬酸钙，锌铝尖晶石，三聚磷酸钠，磷酸，油墨级氢氧化铝，氯化铝，钇基稳定锆，硼砂和中温烧结剂等组分混合组成的修补涂料，具有耐磨性高，粘结性、抗侵蚀性、耐冲刷性及热震稳定性更加优异的特点；本发明选择三种不同粒度的锆刚玉细粉作为骨料和粉料，是因为其显气孔率小于2％，体积密度大于3.8g/Cm3，莫氏硬度高于10，使产品的体积密度提高，显孔率降低，强度显著提高；配方中的纯铝酸钙水泥能增强合成料的亲和力，加入超微粉的作用是增加了填充性，改善了施工性，从而使其流动性增大。
由于甲料中增加了钛酸铝、镁锆砂、锌铝尖晶石作为原料，可以增加涂料耐高温性，稳定性，甲料含有电熔铬酸钙，可以增加涂料耐高温性和涂料粘结强度；乙料中含有钇基稳定锆可以进一步增加涂料耐高温性、稳定性，乙料中加入硼砂和氯化铝后，增加了涂料耐高温性和涂料粘结强度，并且在乙料增加烧结剂可使本品在中低温下烧结，该烧结剂中低温可烧结的烧结剂，选用硅酸盐、硼酸、二氧化硅微粉、氧化镍，硅溶胶和甘油中的一种或二种以上复合；本发明高温耐磨修补涂料与目前使用的耐磨材料以及先前申请的专利(申请号200810243011)高温耐磨修补涂料产品的性能比较：本发明高温耐磨修补涂料使抗折强度增加10Mpa，耐压强度增加近20Mpa，使重烧线变化率减小，体积密度增加，磨损量大大减小。
本发明高温耐磨修补涂料的制备方法是将甲料各组份按重量百分配比秤量：锆刚玉细粉粒径1～3mm、锆刚玉细粉粒径0.4～1mm、锆刚玉细粉粒径0.065～0.088mm、蓝晶石、锌铝尖晶石、镁锆砂、钛酸铝、硅微粉、氧化铝微粉、纯铝酸钙水泥、三聚磷酸钠、电熔铬酸钙，将上述甲料各组份放入混合搅拌器中混合均匀，出料、封装入袋备用；将乙料各组份按重量百分配比秤量：磷酸、油墨级氢氧化铝、氯化铝、钇基稳定锆、硼砂、中温烧结剂，将上述乙料各组份放入混合搅拌器中均匀混合反应后，出料、塑料桶桶装备用。施工时将上述甲料和乙料按照重量配比加入到强制式搅拌机中进行搅拌，搅拌均匀后采用涂抹法在30分钟内将其涂于循环流化床锅炉中所有耐磨砖、耐磨浇注料各损坏部位的修复部位，常温48小时后，即可完成循环流化床锅炉耐磨砖、耐磨浇注料损坏部分修复工程，无需烘炉就可直接启炉，节约了烘炉成本及烘炉时间。
实施例1、高温耐磨修补涂料，由70份重量的甲料和30份重量的乙料组成，其中：
甲料各组份的重量百分比为：
Figure GSB00000964374600041
Figure GSB00000964374600051
其中：蓝晶石细度为180目～220目(过筛)；硅微粉采用硅含量S i≥98％的埃肯硅微粉，镁锆砂中氧化镁(MgO)含量为90％，钛酸铝中二氧化钛(Ti O2)含量为40％。
乙料各组份的重量百分比为：
Figure GSB00000964374600052
其中：磷酸采用浓度为85％磷酸；氯化铝的细度为0.008～0.05mm，中温烧结剂采用硅酸盐。
制造时，将甲料各组份按配比均匀混合后袋装，将乙料各组份按配比均匀混合反应后用塑料桶桶装，施工前将A料与B料按重量份配比搅拌混合即可。
实施例2、高温耐磨修补涂料，由80份重量的甲料和20份重量的乙料组成，其中：
甲料各组份的重量百分比为：
其中：蓝晶石细度为180目～220目(过筛)；硅微粉采用硅含量S i≥98％的埃肯硅微粉，镁锆砂中氧化镁(MgO)含量为90％，钛酸铝中二氧化钛(Ti O2)含量为40％。
乙料各组份的重量百分比为：
Figure GSB00000964374600062
其中：磷酸采用浓度为85％磷酸；氯化铝的细度为0.008～0.05mm，中温烧结剂采用硼酸。
制造时，将甲料各组份按配比均匀混合后袋装，将乙料各组份按配比均匀混合反应后用塑料桶桶装，施工前将A料与B料按重量份配比搅拌混合即可。
实施例3、高温耐磨修补涂料，由85份重量的甲料和15份重量的乙料组成，其中：
甲料各组份的重量百分比为：
Figure GSB00000964374600071
其中：蓝晶石细度为180目～220目(过筛)；硅微粉采用硅含量S i≥98％的埃肯硅微粉，镁锆砂中氧化镁(MgO)含量为90％，钛酸铝中二氧化钛(Ti O2)含量为40％。
乙料各组份的重量百分比为：
Figure GSB00000964374600072
Figure GSB00000964374600081
其中：磷酸采用浓度为85％磷酸；氯化铝的细度为0.008～0.05mm，中温烧结剂采用氧化镍。
制造时，将甲料各组份按配比均匀混合后袋装，将乙料各组份按配比均匀混合反应后用塑料桶桶装，施工前将A料与B料按重量份配比搅拌混合即可。
实施例4、高温耐磨修补涂料，由75份重量的甲料和25份重量的乙料组成，其中：
甲料各组份的重量百分比为：
其中：蓝晶石细度为180目～220目(过筛)；硅微粉采用硅含量S i≥98％的埃肯硅微粉，镁锆砂中氧化镁(MgO)含量为90％，钛酸铝中二氧化钛(Ti O2)含量为40％。
乙料各组份的重量百分比为：
Figure GSB00000964374600091
其中：磷酸采用浓度为85％磷酸；氯化铝的细度为0.008～0.05mm，中温烧结剂采用二氧化硅微粉。
制造时，将甲料各组份按配比均匀混合后袋装，将乙料各组份按配比均匀混合反应后用塑料桶桶装，施工前将A料与B料按重量份配比搅拌混合即可。
实施例5、高温耐磨修补涂料，由80份重量的甲料和20份重量的乙料组成，其中：
甲料各组份的重量百分比为：
Figure GSB00000964374600092
Figure GSB00000964374600101
其中：蓝晶石细度为180目～220目(过筛)；硅微粉采用硅含量S i≥98％的埃肯硅微粉，镁锆砂中氧化镁(MgO)含量为90％，钛酸铝中二氧化钛(Ti O2)含量为40％。
乙料各组份的重量百分比为：
Figure GSB00000964374600102
其中：磷酸采用浓度为85％磷酸；氯化铝的细度为0.008～0.05mm，中温烧结剂采用硅溶胶和甘油，其中硅溶胶和甘油各占上述重量配比(4％)一半，即硅溶胶2％，甘油2％。
制造时，将甲料各组份按配比均匀混合后袋装，将乙料各组份按配比均匀混合反应后用塑料桶桶装，施工前将A料与B料按重量份配比搅拌混合即可。
表1为本发明高温耐磨修补涂料和目前使用的耐磨材料的性能比较。
Figure GSB00000964374600103
Figure GSB00000964374600111
应说明的是，以上实施例仅用以说明本发明的技术方案而非限制，尽管参照较佳实施例对本发明进行了详细说明，本领域的普通技术人员应当理解，可以对本发明的技术方案进行修改或者等同替换，而不脱离本发明技术方案的精神和范围，其均应涵盖在本发明的权利要求范围当中。

Claims (5)

1.一种高温耐磨修补涂料，由甲料和乙料按重量份配比70～85∶30～15组成，其特征在于：
所述甲料各组份重量百分配比为：
Figure FSB00000964374500011
所述蓝晶石细度为180目～220目，所述氯化铝细度为0.008～0.05mm，所述烧结剂采用中低温可烧结的烧结剂。
2.根据权利要求1所述的高温耐磨修补涂料，其特征在于：所述硅微粉采用硅含量≥98％的埃肯硅微粉，所述镁锆砂中氧化镁含量为90％，所述钛酸铝中二氧化钛含量为40％。
3.根据权利要求1所述的高温耐磨修补涂料，其特征在于：所述的乙料组份中磷酸的浓度为85％。
4.根据权利要求1所述的高温耐磨修补涂料，其特征在于：所述烧结剂为硅酸盐、硼酸、二氧化硅微粉、氧化镍，硅溶胶和甘油中的一种或二种以上复合。
5.权利要求1所述的高温耐磨修补涂料的制备方法，其特征在于：按权利要求1所述的甲料和乙料的重量百分配比，将甲料各组份按配比秤量后搅拌均匀混合后入袋封装，将乙料各组份按配比秤量，均匀混合反应后用塑料桶桶装，施工前将A料与B料按重量份配比70～85∶30～15比例搅拌混合。
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CN111763091A (zh) * 2020-06-17 2020-10-13 林国强 一种高热震耐磨涂料及其制备方法
CN111763092A (zh) * 2020-06-17 2020-10-13 林国强 一种抗结渣高温耐磨复合材料及其制备方法
CN113213899A (zh) * 2021-04-29 2021-08-06 武汉锦美环保科技有限公司 一种耐高温材料
CN116217210B (zh) * 2023-05-08 2023-07-11 湖南立达高新材料有限公司 一种钢包用修补料及其制备方法

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