CN115385700A - 一种适用于corex炉熔融还原气化炉的耐火材料 - Google Patents
一种适用于corex炉熔融还原气化炉的耐火材料 Download PDFInfo
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- 239000011819 refractory material Substances 0.000 title claims abstract description 28
- 238000002309 gasification Methods 0.000 title claims abstract description 23
- 238000003723 Smelting Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 abstract description 8
- 229910052804 chromium Inorganic materials 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000010977 jade Substances 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract 2
- 238000005516 engineering process Methods 0.000 description 9
- 239000010431 corundum Substances 0.000 description 6
- 229910052593 corundum Inorganic materials 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 5
- 239000011651 chromium Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000005272 metallurgy Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000011449 brick Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000009970 fire resistant effect Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000009856 non-ferrous metallurgy Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
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Abstract
本发明公开了一种适用于COREX炉熔融还原气化炉的耐火材料，耐火材料具体成份如下：氧化铝70.29%、Cr2O3 20.32%、氧化铁0.29%、ZrO2 4.06%，本发明采取新的工艺铬钢玉系耐材后，气化炉拱顶温度稳定在10‑150摄氏度，气化炉拱顶安全稳定运行降低检修2次，降低耐材更换的检修费用3000万元以上。可以适应于同类企业的生产要求，并具有明显的经济效益、环境效益，有较高的实用价值和推广意义。
Description
技术领域
本发明涉及一种适用于COREX炉熔融还原气化炉的耐火材料。
背景技术
COREX熔融还原法是奥钢联开发的非焦炼铁技术，使用这种工艺替代传统的高炉冶炼流程工艺，对于钢铁联合企业降低炼铁成本、改善经济技术指标、提高产品竞争力具有重要意义。我钢厂结合生产实践，开发了COREX炉炼铁技术，该技术是目前世界上唯一实现氧气冶炼工业化生产的熔融还原炼铁技术。
国内类似的欧冶炉气化炉工艺仅此一座，高炉的结构形式以及使用的耐材结构与材料均无法相同比对，欧冶炉气化炉耐材的创新属于独一的。
原欧冶炉气化炉拱顶采用高铝系耐火材料，在使用煤气化以及生产的工艺过程中出现了拱顶耐材剥落和侵蚀消失的问题，造成拱顶炉壳高温发红的安全隐患，长寿高效安全的耐火材料是欧冶炉技术发展的必须基础支撑。
欧冶炉气化炉拱顶采用高铝系耐火材料工作层，采用喷涂工艺体积密度较低孔隙率高、整体性差，极其重要一点是耐火材料中的Al2O3与煤气中的CL-发生反应，造成砌筑砖体出现疏松腐蚀等问题。检修更换是一项极其庞大的工作，必须全系统停炉清空拆除新建，历时最少60天以上，费工、费时造成的经济损失达到3000万以上，同时还会增加耐火材料的消耗量。所以对COREX炉熔融还原气化炉的耐火材料的要求也越来越高;目前，COREX炉熔融还原气化炉的耐火材料仍存在使用寿命等问题，仍需进一步加以解决。因此，COREX炉熔融还原气化炉的耐火材料的研究开发，已势在必行。
发明内容
本发明的目的在于提供一种适用于COREX炉熔融还原气化炉的耐火材料，使用寿命长，能够降低耐火材料消耗。
本发明具体实施方案：
一种适用于COREX炉熔融还原气化炉的耐火材料，耐火材料具体成份如下：
化学成分波动±3%均在该指标范围内，理化指标波动控制±5%在范围内。
欧冶炉拱顶使用的高铝系刚玉砖及浇注料喷涂料，出现的问题不可回避。欧冶炉工艺的本质是生产合格的铁水，装置近似化工结构，在理念上进行化工与钢铁的结合与技术的耦合，化工核心装置煤化工的水煤浆气化炉采用的耐火材料是铬钢玉系耐火材料，铬刚玉因其特有的优良性能，广泛服役于环境比较苛刻的高温领域，包括有色冶金窑炉、玻璃熔窑、炭黑反应炉、垃圾焚烧炉等。本发明结合COREX炉特点，主要开展了基于COREX炉的耐火材料相关研究，发明了根据气化炉工艺状况开发了COREX炉熔融还原气化炉耐火材料。
本发明技术实施后：
使用铬钢玉材质替换欧冶炉气化炉拱顶关键部位的耐火材料。铬钢玉系耐材采用溶胶结合方式在快速修复炉熔融还原气化炉拱顶耐火材料喷涂施工过程中的优点有:喷涂料耐能够快速紧密结合，实现材料体稳定体积密度控制有效，使用寿命长;施工采用喷涂的成熟方式施工方便，相对降低了耐火材料的消耗。
铬钢玉系耐火材料再开炉前无需特殊烘烤过程，控制拱顶升温速率即可实现烧结。
取得的效果：开发了新的耐材品种实现高质量长寿运行。
COREX炉熔融还原气化炉铬钢玉系耐火材料成功开发研制，在欧冶炉气化炉安装使用，欧冶炉气化炉拱顶温度良好，运行稳定，热负荷平稳，结构稳固，有效的保证了长寿技术的发展，奠定了欧冶炉技术发展耐材基础。
本发明采取新的工艺铬钢玉系耐材后，气化炉拱顶温度稳定在10-150摄氏度，气化炉拱顶安全稳定运行降低检修2次，降低耐材更换的检修费用3000万元以上。可以适应于同类企业的生产要求，并具有明显的经济效益、环境效益，有较高的实用价值和推广意义。
具体实施方式
一种适用于COREX炉熔融还原气化炉的耐火材料，耐火材料具体成份如下：
Claims (1)
1.一种适用于COREX炉熔融还原气化炉的耐火材料，其特征在于耐火材料具体成份如下：
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101913886A (zh) * | 2010-07-23 | 2010-12-15 | 李正平 | 一种水煤浆加压气化炉用95铬铝锆砖及其制备方法 |
| CN102557683A (zh) * | 2011-12-23 | 2012-07-11 | 中钢集团洛阳耐火材料研究院有限公司 | 一种铝铬质耐火材料 |
| CN103693981A (zh) * | 2013-12-20 | 2014-04-02 | 中钢集团洛阳耐火材料研究院有限公司 | 一种微孔化结构Al2O3-Cr2O3耐火材料 |
| CN105036715A (zh) * | 2015-07-09 | 2015-11-11 | 长兴泓矿炉料有限公司 | 一种铝铬质耐火材料及其制备方法 |
| CN212102719U (zh) * | 2020-04-01 | 2020-12-08 | 李国辉 | 气化炉拱顶内衬结构及气化炉 |
| CN114656267A (zh) * | 2022-03-18 | 2022-06-24 | 洛阳阿尔法新材料有限公司 | 一种高纯均质致密铬刚玉料及其制备方法 |
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- 2022-08-04 CN CN202210934467.8A patent/CN115385700A/zh active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101913886A (zh) * | 2010-07-23 | 2010-12-15 | 李正平 | 一种水煤浆加压气化炉用95铬铝锆砖及其制备方法 |
| CN102557683A (zh) * | 2011-12-23 | 2012-07-11 | 中钢集团洛阳耐火材料研究院有限公司 | 一种铝铬质耐火材料 |
| CN103693981A (zh) * | 2013-12-20 | 2014-04-02 | 中钢集团洛阳耐火材料研究院有限公司 | 一种微孔化结构Al2O3-Cr2O3耐火材料 |
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| CN114656267A (zh) * | 2022-03-18 | 2022-06-24 | 洛阳阿尔法新材料有限公司 | 一种高纯均质致密铬刚玉料及其制备方法 |
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