CN113149625A - 一种用于焦炉导烟孔盖的耐高温隔热灰料及其制备方法 - Google Patents

一种用于焦炉导烟孔盖的耐高温隔热灰料及其制备方法 Download PDF

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CN113149625A
CN113149625A CN202110298181.0A CN202110298181A CN113149625A CN 113149625 A CN113149625 A CN 113149625A CN 202110298181 A CN202110298181 A CN 202110298181A CN 113149625 A CN113149625 A CN 113149625A
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王政伟
朱志宾
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Ruzhou Lvcheng Energy Saving And Environmental Protection Technology Co ltd
Henan Jiahe Energy Saving Science & Technology Co ltd
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Henan Jiahe Energy Saving Science & Technology Co ltd
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Abstract

本发明涉及用于焦炉导烟孔盖的耐高温隔热灰料及其制备方法，可有效解决传统导烟孔盖热损失严重，热利用率低的问题，其解决的技术方案是，该耐高温隔热灰料是由以下重量份数计的原料制成：聚乙烯树脂15‑30份、二氧化硅气凝胶25‑30份、碳化硅15‑20份、三氧化二铝10‑15份、粘合剂10‑15份、氧化铟1‑5份、增稠剂0.5‑3份、分散剂0.25‑0.5份、防霉剂0.01‑0.8份、消泡剂0.02‑1.5份和防沉淀剂0.01‑1份；本发明材料耐高温可达1300℃，高温下热导率最低可达0.03w/m.k，通过耐高温隔热材料的运用，降低导烟孔盖的表面温度，可下降到240℃左右，较传统无隔热材料的导烟孔盖温降低30%左右，改善焦炉炉顶的工作环境，提高导烟孔盖的使用寿命，提高热利用率，是耐高温隔热灰料上的创新。

Description

一种用于焦炉导烟孔盖的耐高温隔热灰料及其制备方法
技术领域
本发明涉及材料领域，特别是一种用于焦炉导烟孔盖的耐高温隔热灰料及其制备方法。
背景技术
目前焦化行业，属于大型的煤焦化系统，通过煤的转换用于炼焦、炼钢、化工等，因此对热量的利用要求很高，对于炼焦炉，整体的热利用率仅为30％，也就是说有70％的热损失，因此提升焦炉的热利用率也是企业的节能范畴，对于炉面的热损失占焦炉的10％，而炉面的主要散热分为两部分，一是焦炉炉面的耐火砖，二是焦炉炉顶的立火道盖及焦炉导烟孔盖，导烟孔盖散热面积较大，因此导烟孔盖的降温也是焦化节能的重要体现。
而传统导烟孔盖，表面温度在300-450℃，温度较高，并没用运用到隔热材料进行降温，导致热损失严重，热利用率低。因此，导烟孔盖隔热材料的改进和创新是目前亟需解决的问题。
发明内容
针对上述情况，为解决现有技术之缺陷，本发明之目的就是提供一种用于焦炉导烟孔盖的耐高温隔热灰料及其制备方法，可有效解决传统导烟孔盖热损失严重，热利用率低的问题。
本发明解决的技术方案是，该耐高温隔热灰料是由以下重量份数计的原料制成：聚乙烯树脂15-30份、二氧化硅气凝胶25-30份、碳化硅15-20份、三氧化二铝10-15份、粘合剂10-15份、氧化铟1-5份、增稠剂0.5-3份、分散剂0.25-0.5份、防霉剂0.01-0.8份、消泡剂0.02-1.5份和防沉淀剂0.01-1份。
所述的三氧化二铝细粉，细度为0.005-1毫米。
所述的粘合剂由耐热温度1000℃液体粘合剂与多元稀土物质氧化镧、氧化铈制成；所述的液体粘结剂由以下质量分数计的原料制成：电熔氧化铈微粉2～20％、电熔氧化镧微粉2～25％、水性聚氨酯25～75％和羧甲基纤维素粘结剂20～55％。
制备方法包括以下步骤：
1)搅拌：将聚乙烯树脂，二氧化硅气凝胶，碳化硅，三氧化二铝置于搅拌机中混合搅拌均匀，得到物料一；
2)过筛：将得到的物料一，在22-25℃，过200-250目筛得到混合粉料物料二；
3)混合：把得到的物料二，按照料水比1:1-1.5混合均匀，得到桨状物料三；
4)干燥：把得到的桨状物料三，放置在110-130℃温度下进行干燥，得到块状物料四；
5)将块状物料四研磨成粉，再次完成200-250目筛，得到物料五；
6)高温处理：将得到的物料五，放入高温炉中，以2℃/min从室温升温至200℃，再以3℃/min升温至400℃并保温10min，然后以3℃/min从400℃升温至800℃，保温25-35min，热解2h，最后随炉冷却至室温，再次研磨得耐高温隔热灰料粉末物料六；
7)将物料六中加入粘合剂，增稠剂，分散剂，防霉剂，消泡剂，防沉淀剂及去离子水，粘合剂与去离子水比例1:1.5-2，于搅拌机中混合搅拌均匀，时间为1-2小时，转速为2000-3000r/min，得到耐高温隔热灰料。
本发明材料耐高温可达1300℃，高温下热导率最低可达0.03w/m.k，通过耐高温隔热材料的运用，降低导烟孔盖的表面温度，可下降到240℃左右，较传统无隔热材料的导烟孔盖温降低30％左右，改善焦炉炉顶的工作环境，提高导烟孔盖的使用寿命，提高热利用率，是耐高温隔热灰料上的创新。
具体实施方式
以下结合实施例对本发明的具体实施方式作进一步详细说明。
实施例1
该耐高温隔热灰料是由以下重量份数计的原料制成：聚乙烯树脂16份、二氧化硅气凝胶26份、碳化硅16份、三氧化二铝11份、粘合剂11份、氧化铟2份、增稠剂1份、分散剂0.3份、防霉剂0.02份、消泡剂0.03份和防沉淀剂0.03份。
所述的粘合剂由耐热温度1000℃液体粘合剂与多元稀土物质氧化镧、氧化铈制成；所述的液体粘结剂由以下质量分数计的原料制成：电熔氧化铈微粉5％、电熔氧化镧微粉20％、水性聚氨酯30％和羧甲基纤维素粘结剂45％。
实施例2
该耐高温隔热灰料是由以下重量份数计的原料制成：聚乙烯树脂22份、二氧化硅气凝胶27份、碳化硅18份、三氧化二铝12份、粘合剂13份、氧化铟3份、增稠剂2份、分散剂0.3份、防霉剂0.5份、消泡剂1份和防沉淀剂0.5份。
所述的粘合剂由耐热温度1000℃液体粘合剂与多元稀土物质氧化镧、氧化铈制成；所述的液体粘结剂由以下质量分数计的原料制成：电熔氧化铈微粉15％、电熔氧化镧微粉15％、水性聚氨酯35％和羧甲基纤维素粘结剂35％。
实施例3
该耐高温隔热灰料是由以下重量份数计的原料制成：聚乙烯树脂29份、二氧化硅气凝胶29份、碳化硅19份、三氧化二铝14份、粘合剂14份、氧化铟4份、增稠剂2份、分散剂0.4份、防霉剂0.7份、消泡剂1.5份和防沉淀剂1份。
所述的粘合剂由耐热温度1000℃液体粘合剂与多元稀土物质氧化镧、氧化铈制成；所述的液体粘结剂由以下质量分数计的原料制成：电熔氧化铈微粉20％、电熔氧化镧微粉20％、水性聚氨酯30％和羧甲基纤维素粘结剂30％。
实施例4
在具体实施时，制备方法还可包括以下步骤：
1)搅拌：将聚乙烯树脂，二氧化硅气凝胶，碳化硅，三氧化二铝置于搅拌机中混合搅拌均匀，得到物料一，搅拌速度为280-300转/分钟；
2)过筛：将得到的物料一，在22-25℃，过250目筛得到混合粉料物料二；
3)混合：把得到的物料二，按照料水比1:1.5混合均匀，得到桨状物料三；
4)干燥：把得到的桨状物料三，放置在120℃温度下进行干燥，得到块状物料四；
5)将块状物料四研磨成粉，再次完成250目筛，得到物料五；
6)高温处理：将得到的物料五，放入高温炉中，以2℃/min从室温升温至200℃，再以3℃/min升温至400℃并保温10min，然后以3℃/min从400℃升温至800℃，保温30min，热解2h，最后随炉冷却至室温，再次研磨得耐高温隔热灰料粉末物料六；
7)将物料六中加入粘合剂，增稠剂，分散剂，防霉剂，消泡剂，防沉淀剂及去离子水，粘合剂与去离子水比例1:1.5，于搅拌机中混合搅拌均匀，时间为1-2小时，转速为2000-3000r/min，得到耐高温隔热灰料。
本发明材料耐高温可达1300℃，高温下热导率最低可达0.03w/m.k，通过耐高温隔热材料的运用，降低导烟孔盖的表面温度，可下降到230℃左右，较传统无隔热材料的导烟孔盖温降低40％左右，并经实验得到了证明，相关实验数据见表1、表2。
表1本发明隔热灰料实验数据
Figure BDA0002985098680000031
表2使用本发明隔热灰料前、后的烟孔盖表面温度
Figure BDA0002985098680000041
经反复实验，本发明其他实施例均能取得与上述实验数据相同或相近似的效果，不再一一详述。
本发明的使用情况是，将耐高温隔热灰料喷涂在导烟孔盖内壁侧部位，具体施工方法为：
喷涂料是水性液体，环保无毒，用量少粘接度强，可持续耐温度：1000℃，短时间甚至更高。
对导烟孔孔盖内侧表面要求清洁干燥，没有油脂、灰尘、盐份等杂质，受损区域应手工清理和修复，使用时，根据具体要求，可以喷涂隔热灰料0.1-0.5mm，常温喷涂即可，如果喷涂时过于粘稠可添去离子水或者少量水性粘合剂，搅拌均匀后，然后进行喷涂，喷涂后常温固化即可。
本发明通过耐高温隔热材料的运用，降低导演孔盖的表面温度，可下降到230℃左右，较传统无隔热材料的导烟孔盖温降低40％左右，改善焦炉炉顶的工作环境，提高导烟孔盖的使用寿命，提高热利用率，为节能板块奠定基础，是耐高温隔热灰料上的创新，具有良好的经济和社会效益。

Claims (5)

1.一种用于焦炉导烟孔盖的耐高温隔热灰料，其特征在于，该耐高温隔热灰料是由以下重量份数计的原料制成：聚乙烯树脂15-30份、二氧化硅气凝胶25-30份、碳化硅15-20份、三氧化二铝10-15份、粘合剂10-15份、氧化铟1-5份、增稠剂0.5-3份、分散剂0.25-0.5份、防霉剂0.01-0.8份、消泡剂0.02-1.5份和防沉淀剂0.01-1份；
所述的三氧化二铝细粉，细度为0.005-1毫米；
所述的粘合剂由耐热温度1000℃液体粘合剂与多元稀土物质氧化镧、氧化铈制成；所述的液体粘结剂由以下质量分数计的原料制成：电熔氧化铈微粉2～20％、电熔氧化镧微粉2～25%、水性聚氨酯25～75％和羧甲基纤维素粘结剂20～55%。
2.根据权利要求1所述的用于焦炉导烟孔盖的耐高温隔热灰料，其特征在于，该耐高温隔热灰料是由以下重量份数计的原料制成：聚乙烯树脂16份、二氧化硅气凝胶26份、碳化硅16份、三氧化二铝11份、粘合剂11份、氧化铟2份、增稠剂1份、分散剂0.3份、防霉剂0.02份、消泡剂0.03份和防沉淀剂0.03份；
所述的粘合剂由耐热温度1000℃液体粘合剂与多元稀土物质氧化镧、氧化铈制成；所述的液体粘结剂由以下质量分数计的原料制成：电熔氧化铈微粉5％、电熔氧化镧微粉20%、水性聚氨酯30％和羧甲基纤维素粘结剂45%。
3.根据权利要求1所述的用于焦炉导烟孔盖的耐高温隔热灰料，其特征在于，该耐高温隔热灰料是由以下重量份数计的原料制成：聚乙烯树脂22份、二氧化硅气凝胶27份、碳化硅18份、三氧化二铝12份、粘合剂13份、氧化铟3份、增稠剂2份、分散剂0.3份、防霉剂0.5份、消泡剂1份和防沉淀剂0.5份；
所述的粘合剂由耐热温度1000℃液体粘合剂与多元稀土物质氧化镧、氧化铈制成；所述的液体粘结剂由以下质量分数计的原料制成：电熔氧化铈微粉15％、电熔氧化镧微粉15%、水性聚氨酯35％和羧甲基纤维素粘结剂35%。
4.根据权利要求1所述的用于焦炉导烟孔盖的耐高温隔热灰料，其特征在于，该耐高温隔热灰料是由以下重量份数计的原料制成：聚乙烯树脂29份、二氧化硅气凝胶29份、碳化硅19份、三氧化二铝14份、粘合剂14份、氧化铟4份、增稠剂2份、分散剂0.4份、防霉剂0.7份、消泡剂1.5份和防沉淀剂1份；
所述的粘合剂由耐热温度1000℃液体粘合剂与多元稀土物质氧化镧、氧化铈制成；所述的液体粘结剂由以下质量分数计的原料制成：电熔氧化铈微粉20％、电熔氧化镧微粉20%、水性聚氨酯30％和羧甲基纤维素粘结剂30%。
5.权利要求1-4任一项所述的用于焦炉导烟孔盖的耐高温隔热灰料的制备方法，其特征在于，包括以下步骤：
1）搅拌：将聚乙烯树脂，二氧化硅气凝胶，碳化硅，三氧化二铝置于搅拌机中混合搅拌均匀，得到物料一；
2）过筛：将得到的物料一，在22-25℃，过200-250目筛得到混合粉料物料二；
3）混合：把得到的物料二，按照料水比1:1-1.5混合均匀，得到桨状物料三；
4）干燥：把得到的桨状物料三，放置在110-130℃温度下进行干燥，得到块状物料四；
5）将块状物料四研磨成粉，再次完成200-250目筛，得到物料五；
6）高温处理：将得到的物料五，放入高温炉中，以2℃/min从室温升温至 200℃，再以3℃/min升温至400℃并保温10min，然后以3℃/min从400℃升温至800℃，保温25-35min，热解2h，最后随炉冷却至室温，再次研磨得耐高温隔热灰料粉末物料六；
7）将物料六中加入粘合剂，增稠剂，分散剂，防霉剂，消泡剂，防沉淀剂及去离子水，粘合剂与去离子水比例1:1.5-2，于搅拌机中混合搅拌均匀，时间为1-2小时，转速为2000-3000r/min，得到耐高温隔热灰料。
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