CN115466106A - 一种等离子焚烧炉用铝铬质不定形耐火材料 - Google Patents
一种等离子焚烧炉用铝铬质不定形耐火材料 Download PDFInfo
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- 239000011819 refractory material Substances 0.000 title claims abstract description 24
- QQHSIRTYSFLSRM-UHFFFAOYSA-N alumanylidynechromium Chemical compound [Al].[Cr] QQHSIRTYSFLSRM-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 17
- 239000010431 corundum Substances 0.000 claims abstract description 17
- 239000000843 powder Substances 0.000 claims abstract description 12
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000001768 carboxy methyl cellulose Substances 0.000 claims abstract description 8
- 229910000423 chromium oxide Inorganic materials 0.000 claims abstract description 8
- 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 7
- 238000002844 melting Methods 0.000 claims abstract description 7
- 230000008018 melting Effects 0.000 claims abstract description 7
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical class O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229920001732 Lignosulfonate Polymers 0.000 claims abstract description 5
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims abstract description 5
- RGPUVZXXZFNFBF-UHFFFAOYSA-K diphosphonooxyalumanyl dihydrogen phosphate Chemical compound [Al+3].OP(O)([O-])=O.OP(O)([O-])=O.OP(O)([O-])=O RGPUVZXXZFNFBF-UHFFFAOYSA-K 0.000 claims abstract description 5
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims abstract description 5
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims abstract description 5
- 239000007787 solid Substances 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000011449 brick Substances 0.000 abstract description 4
- 230000008439 repair process Effects 0.000 abstract description 4
- 230000003628 erosive effect Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 3
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 3
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 150000001844 chromium Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002920 hazardous waste Substances 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000004056 waste incineration Methods 0.000 description 1
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- 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
- C04B35/10—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 based on aluminium oxide
- C04B35/101—Refractories from grain sized mixtures
- C04B35/105—Refractories from grain sized mixtures containing chromium oxide or chrome ore
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/349—Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
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- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
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Abstract
本发明公开了一种等离子焚烧炉用铝铬质不定形耐火材料，以重量份计，包括如下组分：电熔白刚玉58份、煅烧氧化铝微粉22‑27份、氧化铬绿微粉10‑15份、固体磷酸二氢铝3份、改性膨润土2份、羧甲基纤维素钠0.1份、木质素磺酸盐0.2份、水10‑15份。本发明制备出的耐火材料熔点能达到1600℃以上，同时具有极好的耐压及抗折强度，附着率达到95％，可将其直接喷补到铝铬砖的表面，可以在线修补，保护炉壁工作层铝铬砖被进一步侵蚀，大大的延长了工作层耐火材料的使用寿命，提高了等离子焚烧炉的作业率。
Description
技术领域
本发明涉及耐火材料技术领域，特别是一种等离子焚烧炉用铝铬质不定形耐火材料。
背景技术
随着等离子垃圾焚烧技术的逐渐使用，危废焚烧的温度进一步提高，局部温度甚至达到2000℃，在这样的苛刻环境下，传统铝铬或者高铬系耐火材料抗侵蚀程度低，使用寿命不足一个月，目前熔池部位的耐火材料修补方式基本为拆除后重新砌筑，该种方式成本高，而且耗时较长，严重降低了焚烧炉的作业率。
发明内容
本发明的目的在于克服现有技术的缺点，提供一种等离子焚烧炉用铝铬质不定形耐火材料。
本发明的目的通过以下技术方案来实现，一种等离子焚烧炉用铝铬质不定形耐火材料，以重量份计，包括如下组分：电熔白刚玉58份、煅烧氧化铝微粉22-27份、氧化铬绿微粉10-15份、固体磷酸二氢铝3份、改性膨润土2份、羧甲基纤维素钠0.1份、木质素磺酸盐0.2份、水10-15份。
优选的，所述电熔白刚玉为如下组成：1-3mm电熔白刚玉15份、0-1mm电熔白刚玉25份、200目电熔白刚玉18份。
优选的，所述煅烧氧化铝微粉为5μm。
优选的，所述氧化铬绿微粉为1-5μm。
本发明具有以下优点：制备出的耐火材料熔点能达到1600℃以上，同时具有极好的耐压及抗折强度，附着率达到95％，可将其直接喷补到铝铬砖的表面，可以在线修补，保护炉壁工作层铝铬砖被进一步侵蚀，大大的延长了工作层耐火材料的使用寿命，提高了等离子焚烧炉的作业率。
具体实施方式
为使本发明实施方式的目的、技术方案和优点更加清楚，下面将结合具体实施方式中的技术方案进行清楚、完整地描述。
实施例1，一种等离子焚烧炉用铝铬质不定形耐火材料，按照如下比例进行配比：1-3mm电熔白刚玉15kg、0-1mm电熔白刚玉25kg、200目电熔白刚玉18kg、5μm煅烧氧化铝微粉27kg、1-5μm氧化铬绿微粉10kg、固体磷酸二氢铝3kg、改性膨润土2kg、羧甲基纤维素钠(CMC)0.1kg、木质素磺酸盐0.2kg、水10kg，然后投入预混机内，预混3-5分钟，通过喷补机直接喷补到需要修补的工作面上。
实施例2，将原料按照如下比例配比：1-3mm电熔白刚玉15kg、0-1mm电熔白刚玉25kg、200目电熔白刚玉18kg、5μm煅烧氧化铝微粉22kg、1-5μm氧化铬绿微粉15kg、固体磷酸二氢铝3kg、改性膨润土2kg、羧甲基纤维素钠(CMC)0.1kg、木质素磺酸盐0.2kg、水15kg，其余步骤与实施例1相同。
检测实施例1与实施例2制备的耐火材料性能，结果如下表：
根据实验结果，不定形耐火材料具有较高的熔点，能达到1600℃以上，随着氧化铬绿含量的增加，熔点进一步提高；采用膨润土，CMC，木质素常温塑性结合剂使得在喷补过程中的附着率均达到95％以上，喷补质量良好；烧结温度的提高促进了该铝铬结合相的形成，明显提高了高温强度及产品耐用性能。
Claims (4)
1.一种等离子焚烧炉用铝铬质不定形耐火材料，其特征在于，以重量份计，包括如下组分：电熔白刚玉58份、煅烧氧化铝微粉22-27份、氧化铬绿微粉10-15份、固体磷酸二氢铝3份、改性膨润土2份、羧甲基纤维素钠0.1份、木质素磺酸盐0.2份、水10-15份。
2.根据权利要求1所述的一种等离子焚烧炉用铝铬质不定形耐火材料，其特征在于，所述电熔白刚玉为如下组成：1-3mm电熔白刚玉15份、0-1mm电熔白刚玉25份、200目电熔白刚玉18份。
3.根据权利要求1所述的一种等离子焚烧炉用铝铬质不定形耐火材料，其特征在于，所述煅烧氧化铝微粉为5μm。
4.根据权利要求1所述的一种等离子焚烧炉用铝铬质不定形耐火材料，其特征在于，所述氧化铬绿微粉为1-5μm。
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001316172A (ja) * | 2000-04-28 | 2001-11-13 | Okayama Ceramics Gijutsu Shinko Zaidan | 灰溶融炉用アルミナ−クロミア質耐火物 |
| CN101121831A (zh) * | 2007-09-21 | 2008-02-13 | 郑州荣达工矿集团有限公司 | 镁钙锆质不沾渣喷涂料 |
| CN108610062A (zh) * | 2016-12-09 | 2018-10-02 | 宝山钢铁股份有限公司 | 镁钙质耐火材料喷补料 |
| CN108752026A (zh) * | 2018-07-04 | 2018-11-06 | 湖南湘钢瑞泰科技有限公司 | 一种铝铬质耐火泥及其生产方法 |
| CN109320219A (zh) * | 2018-11-13 | 2019-02-12 | 辽宁中镁高温材料有限公司 | 一种高性能铝铬质耐火材料及其制作方法与应用 |
| CN109650857A (zh) * | 2019-02-20 | 2019-04-19 | 中钢集团耐火材料有限公司 | 一种有色冶炼熔化熔炉次工作层用耐火材料及其制备方法 |
| CN111439990A (zh) * | 2020-04-03 | 2020-07-24 | 攀枝花市昌宁冶金材料有限责任公司 | 高钛型高炉渣高温碳化电炉用镁铝碳质喷补料及制备方法 |
| CN113173795A (zh) * | 2021-06-09 | 2021-07-27 | 江苏君耀耐磨耐火材料有限公司 | 硫磺回收酸性气焚烧炉用铬刚玉砖及其制备工艺 |
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001316172A (ja) * | 2000-04-28 | 2001-11-13 | Okayama Ceramics Gijutsu Shinko Zaidan | 灰溶融炉用アルミナ−クロミア質耐火物 |
| CN101121831A (zh) * | 2007-09-21 | 2008-02-13 | 郑州荣达工矿集团有限公司 | 镁钙锆质不沾渣喷涂料 |
| CN108610062A (zh) * | 2016-12-09 | 2018-10-02 | 宝山钢铁股份有限公司 | 镁钙质耐火材料喷补料 |
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| CN109320219A (zh) * | 2018-11-13 | 2019-02-12 | 辽宁中镁高温材料有限公司 | 一种高性能铝铬质耐火材料及其制作方法与应用 |
| CN109650857A (zh) * | 2019-02-20 | 2019-04-19 | 中钢集团耐火材料有限公司 | 一种有色冶炼熔化熔炉次工作层用耐火材料及其制备方法 |
| CN111439990A (zh) * | 2020-04-03 | 2020-07-24 | 攀枝花市昌宁冶金材料有限责任公司 | 高钛型高炉渣高温碳化电炉用镁铝碳质喷补料及制备方法 |
| CN113173795A (zh) * | 2021-06-09 | 2021-07-27 | 江苏君耀耐磨耐火材料有限公司 | 硫磺回收酸性气焚烧炉用铬刚玉砖及其制备工艺 |
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Application publication date: 20221213 |