CN111732422A - 一种抗热震性能强的电炉顶预制件及其制备工艺 - Google Patents
一种抗热震性能强的电炉顶预制件及其制备工艺 Download PDFInfo
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- 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 17
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- 239000004568 cement Substances 0.000 claims abstract description 13
- 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 claims abstract description 13
- 229910052863 mullite Inorganic materials 0.000 claims abstract description 13
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- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 11
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Abstract
本发明涉及电炉顶预制件技术领域,且公开了一种抗热震性能强的电炉顶预制件,包括以下重量份数配比的原料:粒度5‑8mm的烧结莫来石10‑20份、粒度3‑5mm的板状刚玉10‑20份、粒度1‑3mm的红柱石10‑20份、粒度0‑1mm的红柱石10‑20份、粒度低于0.088mm的红柱石10‑20份、粒度低于0.044mm的活性氧化铝微粉5‑10份、粒度低于0.044mm的刚玉细粉5‑15份、粒度低于0.005mm的氧化硅细粉3‑8份和纯铝酸钙水泥3‑8份。该抗热震性能强的电炉顶预制件及其制备工艺,具有更好的抗热震性用以抵抗剧烈波动的温度环境,具有更好的抗侵蚀性抵抗钢水的侵蚀,使用寿命更长,同时经济效益明显,对生产厂家来说形成技术优势,具有更高溢价,对于使用单位来说使用寿命更长,摊薄使用成本,且炉顶盖无需频繁更换,降低工人工作量。
Description
技术领域
本发明涉及电炉顶预制件技术领域,具体为一种抗热震性能强的电炉顶预制件及其制备工艺。
背景技术
随着存量钢铁的不断增加,转炉炼钢已经不能完全消耗社会上的存量废钢,借鉴发达国家的发展历程,电炉炼钢将逐步发展,占炼钢总量的40%以上,前景广阔,电炉炼钢主要利用电弧热,在电弧作用区,温度高达4000℃,冶炼过程一般分为熔化期、氧化期和还原期,在炉内不仅能造成氧化气氛,还能造成还原气氛,因此脱磷和脱硫的效率很高。
目前,国内电炉顶盖主要以浇注料预制件为主,该预制件需要良好的抗侵蚀性能和抗热震性能,然而现有的电炉顶盖由于热震性差,导致其使用寿命低,给后期的维护工作带来了不便,故而提出一种抗热震性能强的电炉顶预制件及其制备工艺解决上述问题。
发明内容
(一)解决的技术问题
针对现有技术的不足,本发明提供了一种抗热震性能强的电炉顶预制件及其制备工艺,具备抗热震性能强等优点,解决了现有的电炉顶盖由于热震性差,导致其使用寿命低,给后期的维护工作带来了不便的问题。
(二)技术方案
为实现上述抗热震性能的目的,本发明提供如下技术方案:一种抗热震性能强的电炉顶预制件,包括以下重量份数配比的原料:粒度5-8mm的烧结莫来石10-20份、粒度3-5mm的板状刚玉10-20份、粒度1-3mm的红柱石10-20份、粒度0-1mm的红柱石10-20份、粒度低于0.088mm的红柱石10-20份、粒度低于0.044mm的活性氧化铝微粉5-10份、粒度低于0.044mm的刚玉细粉5-15份、粒度低于0.005mm的氧化硅细粉3-8份和纯铝酸钙水泥3-8份。
优选的,所述烧结莫来石的三氧化二铝质量分数≥68%,所述红柱石的三氧化二铝质量分数≥55%。
优选的,所述刚玉的三氧化二铝质量分数≥99%,所述活性氧化铝微粉的三氧化二铝质量分数≥98.5%。
优选的,所述纯铝酸钙水泥的三氧化二铝质量分数≥68%。
本发明要解决的另一技术问题是提供一种抗热震性能强的电炉顶预制件的制备工艺,包括以下步骤:
1)将重量份数为粒度5-8mm的烧结莫来石10-20份,粒度3-5mm的板状刚玉10-20份,粒度1-3mm的红柱石10-20份,粒度0-1mm的红柱石10-20份,称重配比好,放入搅拌设备搅拌1-2分钟;
2)将重量份数为粒度低于0.088mm的红柱石10-20份,粒度低于0.044mm的活性氧化铝微粉5-10份,粒度低于0.044mm的刚玉细粉5-15份,粒度低于0.005mm的氧化硅细粉3-8份,纯铝酸钙水泥3-8份,称重配比好,在预混机中混合1-2分钟;
3)将步骤2中预混的细粉基质,加入到步骤1的搅拌设备中,加如适量水后搅拌1-2分钟;混合均匀后倒入模具,震动成型。
(三)有益效果
与现有技术相比,本发明提供了一种抗热震性能强的电炉顶预制件及其制备工艺,具备以下有益效果:
该抗热震性能强的电炉顶预制件及其制备工艺,具有更好的抗热震性用以抵抗剧烈波动的温度环境,具有更好的抗侵蚀性抵抗钢水的侵蚀,使用寿命更长,同时经济效益明显,对生产厂家来说形成技术优势,具有更高溢价,对于使用单位来说使用寿命更长,摊薄使用成本,且炉顶盖无需频繁更换,降低工人工作量。
具体实施方式
下面将结合本发明的实施例,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,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他实施例,都属于本发明保护的范围。
一种抗热震性能强的电炉顶预制件,包括以下重量份数配比的原料:粒度5-8mm的烧结莫来石10-20份、粒度3-5mm的板状刚玉10-20份、粒度1-3mm的红柱石10-20份、粒度0-1mm的红柱石10-20份、粒度低于0.088mm的红柱石10-20份、粒度低于0.044mm的活性氧化铝微粉5-10份、粒度低于0.044mm的刚玉细粉5-15份、粒度低于0.005mm的氧化硅细粉3-8份和纯铝酸钙水泥3-8份,烧结莫来石的三氧化二铝质量分数≥68%,红柱石的三氧化二铝质量分数≥55%,刚玉的三氧化二铝质量分数≥99%,活性氧化铝微粉的三氧化二铝质量分数≥98.5%,所述纯铝酸钙水泥的三氧化二铝质量分数≥68%。
实施例一:
一种抗热震性能强的电炉顶预制件的制备工艺,包括以下步骤:
(1)将重量份数为粒度5-8mm的烧结莫来石10份,粒度3-5mm的板状刚玉20份,粒度1-3mm的红柱石20份,粒度0-1mm的红柱石12份,称重配比好,放入搅拌设备搅拌1-2分钟;
(2)将重量份数为粒度低于0.088mm的红柱石20份,粒度低于0.044mm的活性氧化铝微粉3份,粒度低于0.044mm的刚玉细粉8份,粒度低于0.005mm的氧化硅细粉6份,纯铝酸钙水泥4份,称重配比好,在预混机中混合1-2分钟;
(3)将步骤2中预混的细粉基质,加入到步骤1的搅拌设备中,加如适量水后搅拌1-2分钟;混合均匀后倒入模具,震动成型。
本实施例的预制件的实验室检测指标如表1所示。
表1本发明电炉顶预制件的性能指标
实施例二:
一种抗热震性能强的电炉顶预制件的制备工艺,包括以下步骤:
(1)将重量份数为粒度5-8mm的烧结莫来石13份,粒度3-5mm的板状刚玉18份,粒度1-3mm的红柱石17份,粒度0-1mm的红柱石15份,称重配比好,放入搅拌设备搅拌1-2分钟;
(2)将重量份数为粒度低于0.088mm的红柱石15份,粒度低于0.044mm的活性氧化铝微粉5份,粒度低于0.044mm的刚玉细粉6份,粒度低于0.005mm的氧化硅细粉3份,纯铝酸钙水泥8份,称重配比好,在预混机中混合1-2分钟;
(3)将步骤2中预混的细粉基质,加入到步骤1的搅拌设备中,加如适量水后搅拌1-2分钟;混合均匀后倒入模具,震动成型。
本实施例的预制件的实验室检测指标如表2所示。
表2本发明预制件的性能指标
实施例三:
一种抗热震性能强的电炉顶预制件的制备工艺,包括以下步骤:
(1)将重量份数为粒度5-8mm的烧结莫来石15份,粒度3-5mm的板状刚玉16份,粒度1-3mm的红柱石15份,粒度0-1mm的红柱石17份,称重配比好,放入搅拌设备搅拌1-2分钟;
(2)将重量份数为粒度低于0.088mm的红柱石17份,粒度低于0.044mm的活性氧化铝微粉5份,粒度低于0.044mm的刚玉细粉15份,粒度低于0.005mm的氧化硅细粉4份,纯铝酸钙水泥6份,称重配比好,在预混机中混合1-2分钟;
(3)将步骤2中预混的细粉基质,加入到步骤1的搅拌设备中,加如适量水后搅拌1-2分钟;混合均匀后倒入模具,震动成型。
本实施例的预制件的实验室检测指标如表3所示。
表3本发明预制件的性能指标
实施例四:
一种抗热震性能强的电炉顶预制件的制备工艺,包括以下步骤:
(1)将重量份数为粒度5-8mm的烧结莫来石18份,粒度3-5mm的板状刚玉12份,粒度1-3mm的红柱石13份,粒度0-1mm的红柱石20份,称重配比好,放入搅拌设备搅拌1-2分钟;
(2)将重量份数为粒度低于0.088mm的红柱石23份,粒度低于0.044mm的活性氧化铝微粉7份,粒度低于0.044mm的刚玉细粉12份,粒度低于0.005mm的氧化硅细粉5份,纯铝酸钙水泥5份,称重配比好,在预混机中混合1-2分钟;
(3)将步骤2中预混的细粉基质,加入到步骤1的搅拌设备中,加如适量水后搅拌1-2分钟;混合均匀后倒入模具,震动成型。
本实施例的预制件的实验室检测指标如表4所示。
表4本发明预制件的性能指标
判断标准:体积密度采用GB/T2999-2002,抗热震性采用GB/T30873-2014,常温耐压强度采用GB/T5072-2008。
实验结构:实施例四为本发明较优的实施例,在实施例四中的预制件,体积密度≈2.70g/cm3,抗热震性≈230次,常温耐压强度≈90MPa。
本发明的有益效果是:该抗热震性能强的电炉顶预制件及其制备工艺,具有更好的抗热震性用以抵抗剧烈波动的温度环境,具有更好的抗侵蚀性抵抗钢水的侵蚀,使用寿命更长,同时经济效益明显,对生产厂家来说形成技术优势,具有更高溢价,对于使用单位来说使用寿命更长,摊薄使用成本,且炉顶盖无需频繁更换,降低工人工作量,解决了现有的电炉顶盖由于热震性差,导致其使用寿命低,给后期的维护工作带来了不便的问题。
尽管已经示出和描述了本发明的实施例,对于本领域的普通技术人员而言,可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型,本发明的范围由所附权利要求及其等同物限定。
Claims (5)
1.一种抗热震性能强的电炉顶预制件,其特征在于,包括以下重量份数配比的原料:粒度5-8mm的烧结莫来石10-20份、粒度3-5mm的板状刚玉10-20份、粒度1-3mm的红柱石10-20份、粒度0-1mm的红柱石10-20份、粒度低于0.088mm的红柱石10-20份、粒度低于0.044mm的活性氧化铝微粉5-10份、粒度低于0.044mm的刚玉细粉5-15份、粒度低于0.005mm的氧化硅细粉3-8份和纯铝酸钙水泥3-8份。
2.根据权利要求1所述的一种抗热震性能强的电炉顶预制件,其特征在于,所述烧结莫来石的三氧化二铝质量分数≥68%,所述红柱石的三氧化二铝质量分数≥55%。
3.根据权利要求1所述的一种抗热震性能强的电炉顶预制件,其特征在于,所述刚玉的三氧化二铝质量分数≥99%,所述活性氧化铝微粉的三氧化二铝质量分数≥98.5%。
4.根据权利要求1所述的一种抗热震性能强的电炉顶预制件,其特征在于,所述纯铝酸钙水泥的三氧化二铝质量分数≥68%。
5.一种抗热震性能强的电炉顶预制件的制备工艺,其特征在于,包括以下步骤:
1)将重量份数为粒度5-8mm的烧结莫来石10-20份,粒度3-5mm的板状刚玉10-20份,粒度1-3mm的红柱石10-20份,粒度0-1mm的红柱石10-20份,称重配比好,放入搅拌设备搅拌1-2分钟;
2)将重量份数为粒度低于0.088mm的红柱石10-20份,粒度低于0.044mm的活性氧化铝微粉5-10份,粒度低于0.044mm的刚玉细粉5-15份,粒度低于0.005mm的氧化硅细粉3-8份,纯铝酸钙水泥3-8份,称重配比好,在预混机中混合1-2分钟;
3)将步骤2中预混的细粉基质,加入到步骤1的搅拌设备中,加如适量水后搅拌1-2分钟;混合均匀后倒入模具,震动成型。
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