CN106946554B - 一种无水炮泥 - Google Patents
一种无水炮泥 Download PDFInfo
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- 229910001570 bauxite Inorganic materials 0.000 claims abstract description 29
- 239000000843 powder Substances 0.000 claims abstract description 23
- 239000002994 raw material Substances 0.000 claims abstract description 22
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 20
- 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 13
- 229910000519 Ferrosilicon Inorganic materials 0.000 claims abstract description 11
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 11
- INJRKJPEYSAMPD-UHFFFAOYSA-N aluminum;silicic acid;hydrate Chemical compound O.[Al].[Al].O[Si](O)(O)O INJRKJPEYSAMPD-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000010426 asphalt Substances 0.000 claims abstract description 11
- 239000000440 bentonite Substances 0.000 claims abstract description 11
- 229910000278 bentonite Inorganic materials 0.000 claims abstract description 11
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000004927 clay Substances 0.000 claims abstract description 11
- 239000010431 corundum Substances 0.000 claims abstract description 11
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 11
- 239000010439 graphite Substances 0.000 claims abstract description 11
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- 239000002184 metal Substances 0.000 claims abstract description 11
- 229910052751 metal Inorganic materials 0.000 claims abstract description 11
- 150000004767 nitrides Chemical class 0.000 claims abstract description 11
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 11
- 239000011863 silicon-based powder Substances 0.000 claims abstract description 11
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- 229910052742 iron Inorganic materials 0.000 abstract description 16
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Abstract
本发明公开了一种无水炮泥，其原料组成为：粒度为2‑0mm的焦沫7％‑10％、粒度为200目的绢云母5％‑10％、氧化铝粉3％‑5％、粒度为200目的碳化硅5％‑10％、粒度为3‑1mm的高铝矾土10％‑15％、粒度为1‑0mm的高铝矾土10％‑15％、粒度为200目的高铝矾土5％‑10％、粒度为200目的棕刚玉5％‑10％、粒度为200目的金属硅粉2％‑4％、沥青粉4％‑6％、粒度为40‑70目的蓝晶石2％‑4％、土状石墨2％‑4％、黏土5％‑10％、膨润土5％‑10％和氮化硅铁5％‑10％，外加占上述原料总重10％‑15％的结合剂。该无水炮泥具有优良的耐渣铁冲刷和耐侵蚀性能。
Description
技术领域
本发明属于耐火材料领域，具体涉及一种高炉出铁口用无水炮泥。
背景技术
炮泥是用来封堵炼铁高炉出铁口的耐火材料，目前可分为有水炮泥和无水炮泥两大类，前者用在顶压较低，强化冶炼程度不高的中小型高炉，后者在顶压较高，强化冶炼程度高的大中型高炉上。炼铁高炉出铁口是高炉排出铁水的咽喉，随着高炉冶炼不断强化，现代高炉的大型化、长寿化，出铁时间增长以及渣铁流量的增加，对高炉出铁口工作状态的稳定和维护提出了更高的要求。维持高炉顺行高产的关键是出铁口状态稳定，而炮泥的性能是保证出铁口稳定工作的关键。因此，随着高炉冶炼生产强度的增大，对出铁口炮泥质量的要求也越来越高。
炮泥的功用既要填满出铁口通道，又要在炉缸内形成泥包，维持足够的出铁口深度；同时还要容易开口，也容易打泥操作，对渣、铁产生的物理和化学侵蚀具有抵抗性。因此，为了使出铁口工作状态稳定，满足高炉强化冶炼的需要，要求出铁口炮泥应有足够的耐火度，合适的气孔率，以及较强的抗铁水冲刷、侵蚀能力，同时还要有较好的透气性，易于烘干且不开裂，烧结性能好，强度高，开口性能好，环境污染小，还要有适当的可塑性等。现有的高炉用无水炮泥抗渣性能、耐高温性能和耐侵蚀性能差，使用时容易出现潮铁口、浅铁口、断铁口、跑大流、减压、放风、烧坏炉前设备等问题，影响生产。因此，本发明从不同耐火材料的特性入手，对炮泥的原料组成及配比进行研究，提供一种性能优良的无水炮泥。
发明内容
本发明的目的是提供一种高炉出铁口用的无水炮泥。该无水炮泥结焦快，强度高，具有优良的耐渣铁冲刷性能、耐侵蚀性能和抗渣性能。
为实现上述的发明目的，本发明采用的技术方案如下：
一种无水炮泥，以重量百分含量表示，所述无水炮泥的原料组成为：粒度为2-0mm的焦沫7％-10％、粒度为200目的绢云母5％-10％、氧化铝粉3％-5％、粒度为200目的碳化硅5％-10％、粒度为3-1mm的高铝矾土10％-15％、粒度为1-0mm的高铝矾土10％-15％、粒度为200目的高铝矾土5％-10％、粒度为200目的棕刚玉5％-10％、粒度为200目的金属硅粉2％-4％、沥青粉4％-6％、粒度为40-70目的蓝晶石2％-4％、土状石墨2％-4％、黏土5％-10％、膨润土5％-10％和氮化硅铁5％-10％，外加占上述原料总重10％-15％的结合剂。
根据上述的无水炮泥，所述结合剂为焦油。
所述无水炮泥的制备方法，包括以下步骤：
(1)按无水炮泥的原料组成配比称取各原料，备用；(2)将结合剂加热升温至70-75℃，保温；(3)将高铝矾土、绢云母、氧化铝粉、碳化硅、棕刚玉、金属硅粉、沥青粉、蓝晶石、土状石墨、黏土、膨润土和氮化硅铁加入搅拌机中，70-75℃搅拌混合均匀，得到混合料；(4)向混合料中加入经过步骤(2)处理后的结合剂，混碾25-35min，然后出料至挤泥机，挤压成型即得到无水炮泥。
本发明取得的积极有益效果：
(1)本发明通过科学研究、分析，合理设计原料中骨料和粉料的用量配比、粒径分配，制备得到了一种无水炮泥，该无水炮泥结焦快，结构致密，高温强度高，抗渣水、铁水侵蚀性能好，耐冲刷性能优良，延长出铁时间。
(2)本发明无水炮泥可塑性好，具有良好的开口作业性能，无断铁口、浅铁口现象，不扩孔，不喷溅，很好的形成泥包，可维持铁口深度不降低，出铁铁水稳定。
表1 本发明无水炮泥的性能检测参数
(3)本发明无水炮泥的性能检测参数见表1，由表1也可以看出来本发明无水炮泥的抗折强度和耐压强度明显要高于传统的炮泥，具有优良的抗渣水、铁水侵蚀性能和耐冲刷性能。
具体实施方式
以下通过具体实施例对本发明作进一步详细说明，但并不限制本发明的保护范围。
实施例1：
一种无水炮泥，以重量百分含量表示，所述无水炮泥的原料组成为：粒度为2-0mm的焦沫7％、粒度为200目的绢云母8％、氧化铝粉3％、粒度为200目的碳化硅5％、粒度为3-1mm的高铝矾土10％、粒度为1-0mm的高铝矾土15％、粒度为200目的高铝矾土8％、粒度为200目的棕刚玉8％、粒度为200目的金属硅粉2％、沥青粉4％、粒度为40-70目的蓝晶石2％、土状石墨2％、黏土8％、膨润土8％和氮化硅铁10％，外加占上述原料总重10％的结合剂，所述结合剂为焦油。
实施例2：
一种无水炮泥，以重量百分含量表示，所述无水炮泥的原料组成为：粒度为2-0mm的焦沫10％、粒度为200目的绢云母5％、氧化铝粉4％、粒度为200目的碳化硅8％、粒度为3-1mm的高铝矾土12％、粒度为1-0mm的高铝矾土12％、粒度为200目的高铝矾土5％、粒度为200目的棕刚玉10％、粒度为200目的金属硅粉3％、沥青粉5％、粒度为40-70目的蓝晶石3％、土状石墨2％、黏土5％、膨润土10％和氮化硅铁6％，外加占上述原料总重12％的结合剂，所述结合剂为焦油。
实施例3：
一种无水炮泥，以重量百分含量表示，所述无水炮泥的原料组成为：粒度为2-0mm的焦沫8％、粒度为200目的绢云母10％、氧化铝粉5％、粒度为200目的碳化硅5％、粒度为3-1mm的高铝矾土15％、粒度为1-0mm的高铝矾土10％、粒度为200目的高铝矾土10％、粒度为200目的棕刚玉5％、粒度为200目的金属硅粉4％、沥青粉4％、粒度为40-70目的蓝晶石3％、土状石墨3％、黏土5％、膨润土5％和氮化硅铁8％，外加占上述原料总重15％的结合剂，所述结合剂为焦油。
实施例4：
一种无水炮泥，以重量百分含量表示，所述无水炮泥的原料组成为：粒度为2-0mm的焦沫8％、粒度为200目的绢云母8％、氧化铝粉3％、粒度为200目的碳化硅10％、粒度为3-1mm的高铝矾土10％、粒度为1-0mm的高铝矾土12％、粒度为200目的高铝矾土10％、粒度为200目的棕刚玉5％、粒度为200目的金属硅粉2％、沥青粉6％、粒度为40-70目的蓝晶石4％、土状石墨2％、黏土10％、膨润土5％和氮化硅铁5％，外加占上述原料总重12％的结合剂，所述结合剂为焦油。
实施例5：
一种无水炮泥，以重量百分含量表示，所述无水炮泥的原料组成为：粒度为2-0mm的焦沫10％、粒度为200目的绢云母6％、氧化铝粉4％、粒度为200目的碳化硅5％、粒度为3-1mm的高铝矾土15％、粒度为1-0mm的高铝矾土12％、粒度为200目的高铝矾土7％、粒度为200目的棕刚玉10％、粒度为200目的金属硅粉3％、沥青粉5％、粒度为40-70目的蓝晶石2％、土状石墨4％、黏土6％、膨润土6％和氮化硅铁5％，外加占上述原料总重10％的结合剂，所述结合剂为焦油。
实施例6：
一种无水炮泥，以重量百分含量表示，所述无水炮泥的原料组成为：粒度为2-0mm的焦沫6％、粒度为200目的绢云母5％、氧化铝粉5％、粒度为200目的碳化硅8％、粒度为3-1mm的高铝矾土12％、粒度为1-0mm的高铝矾土10％、粒度为200目的高铝矾土8％、粒度为200目的棕刚玉6％、粒度为200目的金属硅粉4％、沥青粉4％、粒度为40-70目的蓝晶石2％、土状石墨4％、黏土8％、膨润土10％和氮化硅铁8％，外加占上述原料总重15％的结合剂，所述结合剂为焦油。
本发明实施例1-6所述的无水炮泥的性能检测参数见表2。
表2 本发明实施例1-6所述的无水炮泥的性能检测参数
Claims (2)
1.一种无水炮泥，其特征在于，以重量百分含量表示，所述无水炮泥的原料组成为：粒度为2-0mm的焦沫7%-10%、粒度为200目的绢云母5%-10%、氧化铝粉3%-5%、粒度为200目的碳化硅5%-10%、粒度为3-1mm的高铝矾土10%-15%、粒度为1-0mm的高铝矾土10%-15%、粒度为200目的高铝矾土5%-10%、粒度为200目的棕刚玉5%-10%、粒度为200目的金属硅粉2%-4%、沥青粉4%-6%、粒度为40-70目的蓝晶石2%-4%、土状石墨2%-4%、黏土5%-10%、膨润土5%-10%和氮化硅铁5%-10%，外加占上述原料总重10%-15%的结合剂；
制备方法包括以下步骤：
（1）按上述的无水炮泥的原料组成称取各原料，备用；
（2）将结合剂加热升温至70-75℃，保温；
（3）将高铝矾土、绢云母、氧化铝粉、碳化硅、棕刚玉、金属硅粉、沥青粉、蓝晶石、土状石墨、黏土、膨润土和氮化硅铁加入搅拌机中，70-75℃搅拌混合均匀，得到混合料；
（4）向混合料中加入结合剂，混碾25-35min，然后出料至挤泥机，挤压成型即得无水炮泥。
2.根据权利要求1所述的无水炮泥，其特征在于，所述结合剂为焦油。
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| CN108440003A (zh) * | 2018-04-25 | 2018-08-24 | 无锡市宝宜耐火材料有限公司 | 无水炮泥及其制备方法 |
| CN108503382A (zh) * | 2018-05-09 | 2018-09-07 | 宜兴市龙宸炉料有限公司 | 一种减轻无水炮泥生产过程中有害物溢出的处理方法 |
| CN109293347B (zh) * | 2018-10-12 | 2021-05-18 | 湖南立达高新材料有限公司 | 一种矿热炉出铁口用绿色环保炮泥及其制备方法 |
| CN110606758B (zh) * | 2019-09-29 | 2021-09-14 | 鞍钢股份有限公司 | 一种以除尘灰作为部分原料的高炉用炮泥及制备方法 |
| CN110803916A (zh) * | 2019-10-17 | 2020-02-18 | 安徽海螺暹罗耐火材料有限公司 | 一种高强耐磨硅莫砖及其制备方法 |
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