CN106747505A - 一种无碳转炉修补料 - Google Patents

一种无碳转炉修补料 Download PDF

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CN106747505A
CN106747505A CN201611135784.4A CN201611135784A CN106747505A CN 106747505 A CN106747505 A CN 106747505A CN 201611135784 A CN201611135784 A CN 201611135784A CN 106747505 A CN106747505 A CN 106747505A
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agent
carbon
repairing
water
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王堂玺
姜富先
倪奎
孙培秋
张玉福
王振波
高洪月
王勇
沙广民
纪国强
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Dandong Bomo Refractories Co Ltd
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Abstract

一种无碳转炉修补料，其特征在于主要是由以重量份数计镁砂80‑95份、硅微粉2‑8份、氧化铝1‑8份、促烧剂1‑4份、引流剂0.5‑2份、减水剂0.2‑1份、水8‑15份制备成。本发明的无碳转炉修补料流动值130‑150mm；抗折强度5‑8MPa；耐压强度30‑50MPa；体积密度2.4‑2.6g/cm3。采用本发明的修补料修补施工简单、抗侵蚀性能强，使用寿命长。

Description

一种无碳转炉修补料
技术领域
本发明属于炼钢转炉用材料，具体涉及一种无碳转炉修补料及其制备方法。
技术背景：
炼钢转炉炉衬与渣线部位主要由镁碳砖砌筑而成。在炼钢工艺中转炉大面的镁碳砖遭受熔渣、钢液的侵蚀，温度快速转变的损伤，以及装料时的物理损坏等，加速镁碳砖的损毁，降低了转炉炉龄及钢铁冶金的效率。近几年溅渣护炉技术和转炉大面修补料的研究与应用，使得炉龄得到大幅提高。
目前，转炉修补料主要为碳结合镁质修补料，其结合剂包括焦油、沥青和酚醛树脂等有机结合剂，在修补过程中产生大量对身体有害的烟雾，对施工环境和工人身体健康造成较大危害，且在施工过程中需伴随摇炉进行，烧结时间长，施工不易操作。本发明无碳转炉修补料可以消除施工过程中的气体污染和危害。镁质原料具有良好的抗侵蚀性，可以保障产品的使用性能。
发明内容
本发明的目的，是提供一种无碳转炉修补料，本发明生产工艺简单，所制备的无碳转炉修补料施工简单，抗侵蚀性等使用性能优良，使用寿命高。
采用的技术方案是：
一种无碳转炉修补料，主要是由以重量份数计镁砂80-95份、硅微粉2-8份、氧化铝1-8份、促烧剂1-4份、引流剂0.5-2份、减水剂0.2-1份、水8-15份制备成。
上述材料中镁砂可为电熔镁砂、烧结镁砂，粒度分别为5-3mm、3-1mm、1-0mm以及0.088mm、0.074mm、0.045mm。
硅微粉纯度大于90%，粒度0.1～0.4um。
氧化铝纯度大于90%，为刚玉粉、刚玉微粉和活性氧化铝。粒度0.088～0.005mm。
促烧剂为硅粉、碳化硅粉等或低熔点金属。
引流剂为聚苯乙烯空心球、含水磷酸盐、含水硅酸盐等。
碱水剂为三聚磷酸钠、六偏磷酸钠和聚羧酸类碱水剂等。
一种无碳转炉修补料的制备方法,其特征是将90份镁砂颗粒及细粉、5-8份硅微粉、1-3份氧化铝、促烧剂2-4份、引流剂0.1-0.2份、减水剂0.2-0.4份、水8-10份。放入搅拌机，搅拌时间3-8min，然后分袋封装。使用施工工艺如下：将定量的修补料放入搅拌机内，加入8-10%的水后搅拌，搅拌时间大于3min，出料后在5min内投入转炉进行修补。
本发明的无碳转炉修补料流动值130-150mm；抗折强度5-8MPa；耐压强度30-50MPa；体积密度2.4-2.6g/cm3。采用本发明的修补料修补施工简单、抗侵蚀性能强，使用寿命长。
具体实施方式
实施例一
一种无碳转炉修补料，主要是由以重量份数计90份镁砂、5份硅微粉、3份氧化铝、2份促烧剂、0.1份引流剂、0.2份减水剂和水8份制备成。
实施例二
一种无碳转炉修补料，主要是由以重量份数计87份镁砂、7份硅微粉、5份氧化铝、1份促烧剂、0.15份引流剂、0.3份减水剂和水9份制备成。
实施例三
一种无碳转炉修补料，主要是由以重量份数计91份镁砂、3份硅微粉、3份氧化铝、3份促烧剂、0.2份引流剂、0.4份减水剂和水10份制备成。
本实施例中镁砂颗粒的粒度≤5mm，硅微粉纯度92%，氧化铝为活性氧化铝微粉、刚玉微粉中的一种或两种，促烧剂为硅粉，引流剂为聚苯乙烯空心球。

Claims (6)

1.一种无碳转炉修补料，其特征在于主要是由以重量份数计镁砂80-95份、硅微粉2-8份、氧化铝1-8份、促烧剂1-4份、引流剂0.5-2份、减水剂0.2-1份、水8-15份制备成。
2.根据权利要求1所述的一种无碳转炉修补料，其特征在于所述的材料中镁砂为电熔镁砂、烧结镁砂，粒度分别为5-3mm、3-1mm、1-0mm以及0.088mm、0.074mm、0.045mm。
3.根据权利要求1所述的一种无碳转炉修补料，其特征在于：所述的硅微粉纯度大于90%，硅微粉粒度为0.1-0.4um；氧化铝纯度大于90%，粒度为0.088-0.002mm，为刚玉粉、刚玉微粉和活性氧化铝；促烧剂包括硅粉、碳化硅粉和低熔点金属；引流剂为聚苯乙烯空心球、含水磷酸盐、含水硅酸盐；碱水剂为三聚磷酸钠、六偏磷酸钠和聚羧酸类碱水剂。
4.根据权利要求1所述的一种无碳转炉修补料，其特征在于主要是由以重量份数计90份镁砂、5份硅微粉、3份氧化铝、2份促烧剂、0.1份引流剂、0.2份减水剂和水8份制备成。
5.根据权利要求1所述的一种无碳转炉修补料，其特征在于主要是由以重量份数计91份镁砂、3份硅微粉、3份氧化铝、3份促烧剂、0.2份引流剂、0.4份减水剂和水10份制备成。
6.根据权利要求1所述的一种无碳转炉修补料，其特征在于主要是由以重量份数计87份镁砂、7份硅微粉、5份氧化铝、1份促烧剂、0.15份引流剂、0.3份减水剂和水9份制备成。
CN201611135784.4A 2016-12-12 2016-12-12 一种无碳转炉修补料 Pending CN106747505A (zh)

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CN107686339A (zh) * 2017-08-29 2018-02-13 浙江攀盛冶金材料有限公司 一种用于中间包的高镁质耐火材料
CN108975927A (zh) * 2018-08-28 2018-12-11 攀枝花顺腾集团冶金材料有限公司 一种快速自流补炉料及其制备方法
CN111470852A (zh) * 2019-08-27 2020-07-31 北京利尔高温材料股份有限公司 一种转炉用大面料
CN115007845A (zh) * 2022-06-15 2022-09-06 攀钢集团攀枝花钢铁研究院有限公司 一种高洁净钢生产过程引流砂填充方法
CN115650703A (zh) * 2022-11-04 2023-01-31 辽宁利尔镁质合成材料股份有限公司 一种镁质浇注料及其制备方法
CN116751067A (zh) * 2023-06-21 2023-09-15 武汉科技大学 一种转炉用水系大面料及其制备方法

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107686339A (zh) * 2017-08-29 2018-02-13 浙江攀盛冶金材料有限公司 一种用于中间包的高镁质耐火材料
CN108975927A (zh) * 2018-08-28 2018-12-11 攀枝花顺腾集团冶金材料有限公司 一种快速自流补炉料及其制备方法
CN111470852A (zh) * 2019-08-27 2020-07-31 北京利尔高温材料股份有限公司 一种转炉用大面料
CN115007845A (zh) * 2022-06-15 2022-09-06 攀钢集团攀枝花钢铁研究院有限公司 一种高洁净钢生产过程引流砂填充方法
CN115007845B (zh) * 2022-06-15 2024-03-15 攀钢集团攀枝花钢铁研究院有限公司 一种高洁净钢生产过程引流砂填充方法
CN115650703A (zh) * 2022-11-04 2023-01-31 辽宁利尔镁质合成材料股份有限公司 一种镁质浇注料及其制备方法
CN116751067A (zh) * 2023-06-21 2023-09-15 武汉科技大学 一种转炉用水系大面料及其制备方法

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Application publication date: 20170531