RU2018131234A - Пригодные для повышения эластичности грубокерамических огнеупорных изделий огнеупорные грануляты шпинели, способ их получения и их применение - Google Patents
Пригодные для повышения эластичности грубокерамических огнеупорных изделий огнеупорные грануляты шпинели, способ их получения и их применение Download PDFInfo
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- RU2018131234A RU2018131234A RU2018131234A RU2018131234A RU2018131234A RU 2018131234 A RU2018131234 A RU 2018131234A RU 2018131234 A RU2018131234 A RU 2018131234A RU 2018131234 A RU2018131234 A RU 2018131234A RU 2018131234 A RU2018131234 A RU 2018131234A
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- Prior art keywords
- granulate
- refractory
- paragraphs
- magnesia
- elasticizer
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- 239000008187 granular material Substances 0.000 title claims 13
- 229910052596 spinel Inorganic materials 0.000 title claims 3
- 239000011029 spinel Substances 0.000 title claims 3
- 239000000919 ceramic Substances 0.000 title 1
- 238000004519 manufacturing process Methods 0.000 title 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims 30
- 239000000395 magnesium oxide Substances 0.000 claims 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 9
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims 7
- 238000000034 method Methods 0.000 claims 6
- 239000000203 mixture Substances 0.000 claims 6
- 239000013078 crystal Substances 0.000 claims 3
- 238000009826 distribution Methods 0.000 claims 3
- 238000002844 melting Methods 0.000 claims 3
- 230000008018 melting Effects 0.000 claims 3
- 239000002994 raw material Substances 0.000 claims 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims 2
- 239000011822 basic refractory Substances 0.000 claims 2
- 239000011230 binding agent Substances 0.000 claims 2
- 239000000463 material Substances 0.000 claims 2
- 239000004375 Dextrin Substances 0.000 claims 1
- 229920001353 Dextrin Polymers 0.000 claims 1
- 229920001732 Lignosulfonate Polymers 0.000 claims 1
- 239000000654 additive Substances 0.000 claims 1
- 230000000996 additive effect Effects 0.000 claims 1
- 239000000956 alloy Substances 0.000 claims 1
- 229910045601 alloy Inorganic materials 0.000 claims 1
- 229910001570 bauxite Inorganic materials 0.000 claims 1
- 239000003518 caustics Substances 0.000 claims 1
- 239000004568 cement Substances 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 230000006835 compression Effects 0.000 claims 1
- 238000001816 cooling Methods 0.000 claims 1
- 235000019425 dextrin Nutrition 0.000 claims 1
- 229920001971 elastomer Polymers 0.000 claims 1
- 239000000806 elastomer Substances 0.000 claims 1
- 238000010891 electric arc Methods 0.000 claims 1
- 238000005469 granulation Methods 0.000 claims 1
- 230000003179 granulation Effects 0.000 claims 1
- 229910052595 hematite Inorganic materials 0.000 claims 1
- 239000011019 hematite Substances 0.000 claims 1
- 229910052500 inorganic mineral Inorganic materials 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 claims 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims 1
- 229920000609 methyl cellulose Polymers 0.000 claims 1
- 239000001923 methylcellulose Substances 0.000 claims 1
- 235000010981 methylcellulose Nutrition 0.000 claims 1
- 239000011707 mineral Substances 0.000 claims 1
- 230000007935 neutral effect Effects 0.000 claims 1
- 230000003472 neutralizing effect Effects 0.000 claims 1
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- 230000001590 oxidative effect Effects 0.000 claims 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims 1
- 239000011819 refractory material Substances 0.000 claims 1
- 239000006104 solid solution Substances 0.000 claims 1
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Claims (43)
1. Зернистый огнеупорный минеральный гранулят эластификатора для огнеупорных изделий, в частности для основных огнеупорных изделий, минералогически состоящий соответственно из монофазного продукта смешанного кристалла плавленой шпинели или многофазного продукта плавления трехкомпонентной системы MgO-Fe2O3-Al2O3 из диапазона состава
MgO: от 12 до 19,5, в частности от 15 до 17 вес.%,
остаток: Fe2O3 и Al2O3 в диапазоне количественных соотношений Fe2O3 к Al2O3 от 80 к 20 до 40 к 60 вес.%,
причем, исходя из содержания MgO от 12 до 19,5 вес.%, соответствующие смешанные кристаллы содержат соответственно Fe2O3 и Al2O3 в твердом растворе в таких количествах, чтобы получить общий состав 100%.
2. Гранулят эластификатора по п. 1,
отличающийся тем, что
его насыпная плотность составляет ≥3,5, в частности ≥3,6, предпочтительно ≥3,7 г/см3, наиболее предпочтительно до 3,8 г/см3, измеренной согласно DIN EN 993-18.
3. Гранулят эластификатора по пп. 1 и/или 2,
отличающийся тем, что содержит менее 15, в частности менее 10 вес.% побочных фаз.
4. Гранулят эластификатора по одному или нескольким пп. 1-3,
отличающийся тем, что прочность зерна на сжатие составляет от 30 до 50 MПa, в частности от 35 до 45 MПa, измеренной на основании DIN EN 13055 (Приложение C).
5. Гранулят эластификатора по одному или нескольким пп. 1-4, отличающийся тем, что величина линейного коэффициента расширения составляет от 8,5 до 9,5, в частности от 8,8 до 9,2⋅10-6 K-1.
6. Гранулят эластификатора по одному или нескольким пп. 1-5, отличающийся тем, что размеры зерна представляют собой обычное нормальное распределение, в частности гауссовское распределение зерна, или с определенными фракциями зерна между 0 и 6, в частности между 0 и 4 мм, предпочтительно со следующими распределениями зерна:
0,5-1,0 мм 30-40 вес.%,
1,0-2,0 мм 50-60 вес.%.
7. Способ получения многофазного гранулята эластификатора по одному или нескольким пп. 1-6,
отличающийся тем, что
- по меньшей мере, один высокочистый, в частности, MgO-компонент тонкого помола,
- по меньшей мере, один высокочистый, в частности, Fe2O3-компонент тонкого помола,
- по меньшей мере, один высокочистый, в частности, Al2O3-компонент тонкого помола
смешивают в определенных относительно оксида количествах, находящихся в диапазоне состава по п. 1, смесь плавят в нейтральной или восстановительной атмосфере, например в электродуговой печи, после охлаждения сплава продукт плавления размельчают до гранулята и классифицируют.
8. Способ получения монофазного гранулята эластификатора по одному или нескольким пп. 1-6,
отличающийся тем, что
классифицированный или еще не классифицированный многофазный гранулят по п. 7 посредством высокотемпературного окисления превращают в монофазный продукт смешанного кристалла плавленой шпинели.
9. Способ по п. 7 или 8, отличающийся тем, что
- в качестве MgO-компонента используют, по меньшей мере, один сырьевой материал из следующей группы: плавленая магнезия, спеченная магнезия, каустическая магнезия, в частности, с MgO-содержанием выше 96, предпочтительно выше 98 вес.% или обогащенная железом альпийская (высокогорная) спеченная магнезия,
- в качестве Fe2O3-компонента используют, по меньшей мере, один сырьевой материал из следующей группы: магнетит, гематит, прокатная окалина, в частности, с Fe2O3-содержанием выше 90, предпочтительно выше 95 вес.%,
- в качестве Al2O3-компонента используют, по меньшей мере, один сырьевой материал из следующей группы: оксид алюминия, в частности, в форме альфа- или гамма-оксида алюминия, в частности, с Al2O3-содержанием выше 98, предпочтительно выше 99 вес.% или кальцинированный металлургический боксит.
10. Способ по одному или нескольким пп. 7-9, отличающийся тем, что
компоненты смешивают и/или размельчают в агрегате для помола, предпочтительно до ≤1 мм.
11. Способ по одному или нескольким пп. 7-10,
отличающийся тем, что
смеси плавят при температурах между 1750 и 2200, в частности между 1800 и 2100°C.
12. Способ по одному или нескольким пп. 7-11,
отличающийся тем, что
смеси до плавления уплотняют, например, гранулированием или прессованием.
13. Основное керамически обожженное или необожженное огнеупорное изделие, представленное, в частности, в форме огнеупорных формованных тел, в частности спрессованных огнеупорных формованных тел, или в форме неформованных огнеупорных масс, содержащее или, в частности, состоящее из:
от 50 до 95 вес.%, в частности от 60 до 90 вес.%, по меньшей мере, одного зернистого основного огнеупорного материала, в частности магнезии, в частности плавленой магнезии и/или спеченной магнезии, с размерами зерна, в частности, между 1 и 7, в частности между 1 и 4 мм,
от 0 до 20 вес.%, в частности от 2 до 18 вес.%, по меньшей мере, одного основного огнеупорного материала тонкого помола, в частности магнезии, в частности плавленой магнезии и/или спеченной магнезии с размерами зерна ≤1 мм, в частности ≤0,1 мм,
от 5 до 20, в частности от 6 до 15 вес.%, по меньшей мере, одного соответствующего изобретению зернистого гранулята эластификатора с размерами зерна, в частности, между 0,5 и 4 мм, в частности между 1 и 3 мм,
от 0 до 5 вес.%, в частности от 1 до 5 вес.%, по меньшей мере, одной присадки тонкого помола, в частности, из изготовленного соответственно изобретению плавленого материала с размерами зерна ≤1 мм, в частности ≤0,1 мм,
от 0 до 5 вес.%, в частности от 1 до 2 вес.%, по меньшей мере, одного обычно применяемого для огнеупорных изделий связующего, в частности, по меньшей мере, одного органического связующего, такого как декстрин, метилцеллюлоза, лигносульфонат.
14. Применение соответствующего изобретению огнеупорного изделия по п. 13, содержащего гранулят эластификатора по одному или нескольким пп. 1-6, которое изготовлено по одному или нескольким пп. 7-12, в качестве футеровки со стороны пламени промышленных эксплуатируемых с нейтральной или окислительной печной атмосферой печных агрегатов большого объема, в частности для футеровки цементных вращающихся печей.
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| Application Number | Priority Date | Filing Date | Title |
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| DE102016109258.4A DE102016109258B4 (de) | 2016-05-19 | 2016-05-19 | Zur Elastifizierung von grobkeramischen Feuerfesterzeugnissen geeignetes feuerfestes Spinellgranulat, Verfahren zu dessen Herstellung, Feuerfesterzeugnis mit dem Spinellgranulat, Verwendung des Feuerfesterzeugnisses, Auskleidung eines Industrieofens mit dem Feuerfesterzeugnis |
| DE102016109258.4 | 2016-05-19 | ||
| PCT/EP2017/056999 WO2017198378A1 (de) | 2016-05-19 | 2017-03-23 | Zur elastifizierung von grobkeramischen feuerfesterzeugnissen geeignete feuerfeste spinellgranulate, verfahren zu ihrer herstellung und ihre verwendung |
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| KR (1) | KR20190008539A (ru) |
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| DE3527789C3 (de) | 1985-08-02 | 1994-02-24 | Refratechnik Gmbh | Grobkeramischer Formkörper sowie dessen Verwendung |
| DE4403869C2 (de) | 1994-02-08 | 1998-01-15 | Veitsch Radex Ag | Feuerfester keramischer Versatz und dessen Verwendung |
| DE10117026B4 (de) | 2001-04-05 | 2005-02-17 | Refratechnik Holding Gmbh | Feuerfester Versatz, feuerfester Formkörper daraus und Verfahren zu deren Herstellung |
| DE10117028B4 (de) * | 2001-04-05 | 2005-02-24 | Refratechnik Holding Gmbh | Feuerfester Resistor, Verfahren zur Herstellung, Versatz und Formkörper daraus |
| DE10117029B4 (de) * | 2001-04-05 | 2006-04-13 | Refratechnik Holding Gmbh | Material für feuerfeste Formkörper oder Massen, feuerfestes Produkt hieraus sowie Verfahren zur Herstellung eines feuerfesten Produkts |
| DE102006007781B4 (de) * | 2006-02-20 | 2008-09-25 | Refratechnik Holding Gmbh | Grobkeramischer feuerfester Versatz sowie feuerfestes Erzeugnis daraus |
| DE102007019179A1 (de) * | 2007-04-20 | 2008-10-30 | Center For Abrasives And Refractories Research & Development C.A.R.R.D. Gmbh | Verschleißschutzschicht |
| CN102093060B (zh) * | 2009-12-10 | 2013-11-27 | 营口品瑞合成耐火材料有限公司 | 镁铁铝尖晶石砂及其制备方法 |
| CN101823872B (zh) | 2010-02-03 | 2012-09-05 | 山东圣川陶瓷材料有限公司 | 合成亚铁铝尖晶石的方法 |
| CN101973771B (zh) * | 2010-09-29 | 2013-06-05 | 淄博市鲁中耐火材料有限公司 | 一种亚铁铝镁系耐火原料及其制备方法 |
| DE102012023318A1 (de) * | 2012-11-29 | 2014-06-05 | Refratechnik Holding Gmbh | Verwendung von ungebrannten feuerfesten Erzeugnissen als Zustellung von großvolumigen Industrieöfen sowie Industrieofen ausgekleidet mit den ungebrannten feuerfesten Erzeugnissen |
| EP2918564A1 (de) * | 2014-03-13 | 2015-09-16 | LANXESS Deutschland GmbH | Feuerfeste Materialien enthaltend einen Mischkristall mit Spinell-Struktur |
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| EP3458430A1 (de) | 2019-03-27 |
| US20190152860A1 (en) | 2019-05-23 |
| BR112018073645A2 (pt) | 2019-02-26 |
| HUE052965T2 (hu) | 2021-05-28 |
| CN109153613A (zh) | 2019-01-04 |
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| CA3024525A1 (en) | 2017-11-23 |
| KR20190008539A (ko) | 2019-01-24 |
| RU2018131234A3 (ru) | 2020-06-19 |
| WO2017198378A1 (de) | 2017-11-23 |
| DE102016109258B4 (de) | 2018-08-16 |
| EP3458430B1 (de) | 2020-10-14 |
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