CN106699127A - 耐热风蚀的耐火砖及其制备工艺 - Google Patents

耐热风蚀的耐火砖及其制备工艺 Download PDF

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CN106699127A
CN106699127A CN201611205898.1A CN201611205898A CN106699127A CN 106699127 A CN106699127 A CN 106699127A CN 201611205898 A CN201611205898 A CN 201611205898A CN 106699127 A CN106699127 A CN 106699127A
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李伟
李长安
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Anhui Yuantong Heating Technology Co Ltd
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Abstract

本发明涉及耐火材料技术领域，具体涉及耐热风蚀的耐火砖，耐火砖由如下重量份数的原料制成：普通硅酸盐水泥20‑24份、石英砂20‑24份、滑石粉20‑24份、氧化锌4‑5份、碳化纤维5‑8份、凹凸棒土10‑14份、钨粉4‑6份、玻化微珠4‑6份、硼化铬4‑6份、二氧化硅气凝胶颗粒4‑6份、粘结剂8‑10份、助剂8‑10份、水22‑28份。本发明耐火砖耐热风蚀，位于炉膛内的一面表面经过渗氮处理，使得表面硬度非常大，而且耐火砖抗热震性好。

Description

耐热风蚀的耐火砖及其制备工艺
技术领域
本发明涉及耐火材料技术领域，具体涉及一种耐热风蚀的耐火砖及其制备工艺。
背景技术
随着人们生活水平的提高，人们对室内采暖的需求越来越大。目前的大型供热厂区都会通过烟囱来排烟，由于炉膛内需要鼓风，所以炉膛内会产生热风扰动并对炉膛产生一定影响，长期下去炉膛内的砖块会被风蚀，影响使用寿命。
发明内容
本发明所要解决的技术问题在于提供一种耐热风蚀的耐火砖及其制备工艺。
本发明所要解决的技术问题采用以下技术方案来实现：
耐热风蚀的耐火砖，耐火砖由如下重量份数的原料制成：
普通硅酸盐水泥20-24份、石英砂20-24份、滑石粉20-24份、氧化锌4-5份、碳化纤维5-8份、凹凸棒土10-14份、钨粉4-6份、玻化微珠4-6份、硼化铬4-6份、二氧化硅气凝胶颗粒4-6份、粘结剂8-10份、助剂8-10份、水22-28份。
所述粘结剂由如下重量份数的原料制成：聚丙烯酸4-5份、聚氧乙烯酶4-5份、木质素2-2.5份、瓜耳胶醚1-1.2份、甲基丙烯酸甲酯0.5-1份；其制备方法是：将聚丙烯酸加热至80-120℃，然后将剩余各原料混入聚丙烯酸中，搅拌30分钟，然后冷却即得粘结剂。
所述助剂由如下重量份数的原料制成：十二烷基硫酸钠2-4份、聚乙烯醇0.5-0.8份、偶氮二甲酸二乙酯0.5-0.8份；其制备方法是：将各原料混合并在2500转/分钟的搅拌机内搅拌30分钟即得助剂。
耐热风蚀的耐火砖的制备工艺，包括以下步骤：
(1)将除了下粘结剂、助剂、水的各原料磨碎成50目-100目粉料，然后将粉料与下粘结剂、水混合均匀得混合料，将混合料加热至50℃后向混合料内混入助剂，然后继续混合均匀得预制料；
(2)将预制料在制砖模具中制砖，再将砖在1300-1400℃下烧结成型，冷却后即得耐火砖。
步骤(2)烧结结束后待砖块冷却至100-120℃时将砖块接近炉膛内的一面涂抹上浓度为42％的羧酸溶液，然后复热至300-400℃，再用二氧化碳气体对接近炉膛内的一面进行喷吹，喷吹10分钟结束，然后待砖块冷却即可。
本发明的有益效果是：本发明耐火砖耐热风蚀，位于炉膛内的一面表面经过渗氮处理，使得表面硬度非常大，而且耐火砖抗热震性好。
具体实施方式
为了使本发明实现的技术手段、创作特征、达成目的与功效易于明白了解，下面结合具体实施例，进一步阐述本发明。
实施例1
耐热风蚀的耐火砖，耐火砖由如下重量份数的原料制成：
普通硅酸盐水泥22份、石英砂22份、滑石粉22份、氧化锌4.5份、碳化纤维6份、凹凸棒土12份、钨粉5份、玻化微珠5份、硼化铬5份、二氧化硅气凝胶颗粒5份、粘结剂9份、助剂9份、水25份。
所述粘结剂由如下重量份数的原料制成：聚丙烯酸4.5份、聚氧乙烯酶4.5份、木质素2.2份、瓜耳胶醚1.1份、甲基丙烯酸甲酯0.8份；其制备方法是：将聚丙烯酸加热至80-120℃，然后将剩余各原料混入聚丙烯酸中，搅拌30分钟，然后冷却即得粘结剂。
所述助剂由如下重量份数的原料制成：十二烷基硫酸钠3份、聚乙烯醇0.6份、偶氮二甲酸二乙酯0.6份；其制备方法是：将各原料混合并在2500转/分钟的搅拌机内搅拌30分钟即得助剂。
耐热风蚀的耐火砖的制备工艺，包括以下步骤：
(1)将除了下粘结剂、助剂、水的各原料磨碎成50目-100目粉料，然后将粉料与下粘结剂、水混合均匀得混合料，将混合料加热至50℃后向混合料内混入助剂，然后继续混合均匀得预制料；
(2)将预制料在制砖模具中制砖，再将砖在1300-1400℃下烧结成型，烧结结束后待砖块冷却至100-120℃时将砖块接近炉膛内的一面涂抹上浓度为42％的羧酸溶液，然后复热至300-400℃，再用二氧化碳气体对接近炉膛内的一面进行喷吹，喷吹10分钟结束，然后待砖块冷却即可。
实施例2
耐热风蚀的耐火砖，耐火砖由如下重量份数的原料制成：
普通硅酸盐水泥20份、石英砂20份、滑石粉20份、氧化锌4份、碳化纤维5份、凹凸棒土10份、钨粉4份、玻化微珠4份、硼化铬4份、二氧化硅气凝胶颗粒4份、粘结剂8份、助剂8份、水22份。
所述粘结剂由如下重量份数的原料制成：聚丙烯酸4份、聚氧乙烯酶4份、木质素2份、瓜耳胶醚1份、甲基丙烯酸甲酯0.5份；其制备方法是：将聚丙烯酸加热至80-120℃，然后将剩余各原料混入聚丙烯酸中，搅拌30分钟，然后冷却即得粘结剂。
所述助剂由如下重量份数的原料制成：十二烷基硫酸钠2份、聚乙烯醇0.5份、偶氮二甲酸二乙酯0.5份；其制备方法是：将各原料混合并在2500转/分钟的搅拌机内搅拌30分钟即得助剂。
耐热风蚀的耐火砖的制备工艺，包括以下步骤：
(1)将除了下粘结剂、助剂、水的各原料磨碎成50目-100目粉料，然后将粉料与下粘结剂、水混合均匀得混合料，将混合料加热至50℃后向混合料内混入助剂，然后继续混合均匀得预制料；
(2)将预制料在制砖模具中制砖，再将砖在1300-1400℃下烧结成型，烧结结束后待砖块冷却至100-120℃时将砖块接近炉膛内的一面涂抹上浓度为42％的羧酸溶液，然后复热至300-400℃，再用二氧化碳气体对接近炉膛内的一面进行喷吹，喷吹10分钟结束，然后待砖块冷却即可。
实施例3
耐热风蚀的耐火砖，耐火砖由如下重量份数的原料制成：
普通硅酸盐水泥24份、石英砂24份、滑石粉24份、氧化锌5份、碳化纤维8份、凹凸棒土14份、钨粉6份、玻化微珠6份、硼化铬6份、二氧化硅气凝胶颗粒6份、粘结剂10份、助剂10份、水28份。
所述粘结剂由如下重量份数的原料制成：聚丙烯酸5份、聚氧乙烯酶5份、木质素2.5份、瓜耳胶醚1.2份、甲基丙烯酸甲酯1份；其制备方法是：将聚丙烯酸加热至80-120℃，然后将剩余各原料混入聚丙烯酸中，搅拌30分钟，然后冷却即得粘结剂。
所述助剂由如下重量份数的原料制成：十二烷基硫酸钠4份、聚乙烯醇0.8份、偶氮二甲酸二乙酯0.8份；其制备方法是：将各原料混合并在2500转/分钟的搅拌机内搅拌30分钟即得助剂。
耐热风蚀的耐火砖的制备工艺，包括以下步骤：
(1)将除了下粘结剂、助剂、水的各原料磨碎成50目-100目粉料，然后将粉料与下粘结剂、水混合均匀得混合料，将混合料加热至50℃后向混合料内混入助剂，然后继续混合均匀得预制料；
(2)将预制料在制砖模具中制砖，再将砖在1300-1400℃下烧结成型，烧结结束后待砖块冷却至100-120℃时将砖块接近炉膛内的一面涂抹上浓度为42％的羧酸溶液，然后复热至300-400℃，再用二氧化碳气体对接近炉膛内的一面进行喷吹，喷吹10分钟结束，然后待砖块冷却即可。
试验
本发明实施例1、2、3制得的耐火砖与普通耐火砖性能对比如下表：
由上表可见，本发明耐火砖使用效果非常好。
以上显示和描述了本发明的基本原理和主要特征和本发明的优点。本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是说明本发明的原理，在不脱离本发明精神和范围的前提下，本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。

Claims (5)

1.耐热风蚀的耐火砖，其特征在于，耐火砖由如下重量份数的原料制成：
普通硅酸盐水泥20-24份、石英砂20-24份、滑石粉20-24份、氧化锌4-5份、碳化纤维5-8份、凹凸棒土10-14份、钨粉4-6份、玻化微珠4-6份、硼化铬4-6份、二氧化硅气凝胶颗粒4-6份、粘结剂8-10份、助剂8-10份、水22-28份。
2.如权利要求1所述的耐热风蚀的耐火砖，其特征在于，所述粘结剂由如下重量份数的原料制成：聚丙烯酸4-5份、聚氧乙烯酶4-5份、木质素2-2.5份、瓜耳胶醚1-1.2份、甲基丙烯酸甲酯0.5-1份；其制备方法是：将聚丙烯酸加热至80-120℃，然后将剩余各原料混入聚丙烯酸中，搅拌30分钟，然后冷却即得粘结剂。
3.如权利要求1所述的耐热风蚀的耐火砖，其特征在于，所述助剂由如下重量份数的原料制成：十二烷基硫酸钠2-4份、聚乙烯醇0.5-0.8份、偶氮二甲酸二乙酯0.5-0.8份；其制备方法是：将各原料混合并在2500转/分钟的搅拌机内搅拌30分钟即得助剂。
4.耐热风蚀的耐火砖的制备工艺，其特征在于，包括以下步骤：
(1)将除了下粘结剂、助剂、水的各原料磨碎成50目-100目粉料，然后将粉料与下粘结剂、水混合均匀得混合料，将混合料加热至50℃后向混合料内混入助剂，然后继续混合均匀得预制料；
(2)将预制料在制砖模具中制砖，再将砖在1300-1400℃下烧结成型，冷却后即得耐火砖。
5.如权利要求4所述的耐热风蚀的耐火砖的制备方法，其特征在于，步骤(2)烧结结束后待砖块冷却至100-120℃时将砖块接近炉膛内的一面涂抹上浓度为42％的羧酸溶液，然后复热至300-400℃，再用二氧化碳气体对接近炉膛内的一面进行喷吹，喷吹10分钟结束，然后待砖块冷却即可。
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CN107129299A (zh) * 2017-07-04 2017-09-05 合肥择浚电气设备有限公司 一种耐火砖及其制备方法
CN107673771A (zh) * 2017-11-29 2018-02-09 安徽元通采暖科技有限公司 一种耐热蚀壁炉砖
CN108640696A (zh) * 2018-07-31 2018-10-12 合肥铭佑高温技术有限公司 一种窑炉专用耐火材料的生产方法

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CN107129299A (zh) * 2017-07-04 2017-09-05 合肥择浚电气设备有限公司 一种耐火砖及其制备方法
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CN108640696A (zh) * 2018-07-31 2018-10-12 合肥铭佑高温技术有限公司 一种窑炉专用耐火材料的生产方法

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