RU2016102423A - Жаростойкая шихта и ее применение - Google Patents
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- RU2016102423A RU2016102423A RU2016102423A RU2016102423A RU2016102423A RU 2016102423 A RU2016102423 A RU 2016102423A RU 2016102423 A RU2016102423 A RU 2016102423A RU 2016102423 A RU2016102423 A RU 2016102423A RU 2016102423 A RU2016102423 A RU 2016102423A
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Claims (33)
1. Шихта из минеральных жаростойких материалов для футеровки агрегатов для плавки цветных металлов, предпочтительно для футеровки медеплавильных конвертеров, содержащая более 90 вес.%, в частности, более 95 вес.% смеси следующих компонентов или, наиболее предпочтительно, состоящей из следующих компонентов:
- 3-74 вес.% по меньшей мере одного крупнозернистого оливинового сырья с содержанием форстерита по меньшей мере 70 вес.%, в частности, по меньшей мере 90 вес.%, предпочтительно по меньшей мере 100 вес.%, у которого предпочтительно 50 вес.%, в частности, 80 вес.%, предпочтительно 100 вес.% зерен имеют размер больше 0,1 мм,
- 25-49 вес.% по меньшей мере одной магнезии в виде тонкого порошка, у которой предпочтительно 50 вес.%, в частности, 80 вес.%, предпочтительно 100 вес.% частиц имеют размер ≤1 мм,
- 0,9-14 вес.% по меньшей мере одного карбида кремния (SiC) в виде тонкого порошка, у которого предпочтительно 50 вес.%, в частности, 80 вес.%, предпочтительно 100 вес.% зерен имеют размер ≤1 мм,
- 0,1-10 вес.% по меньшей мере одной тонкодисперсной сухой порошкообразной кремниевой кислоты, предпочтительно с размером частиц ≤500 мкм,
- 0-4 вес.% по меньшей мере одного антиоксиданта, известного для применения в огнеупорных продуктах,
- 0-4 вес.% по меньшей мере одного известного дополнительного жаростойкого гранулированного сырья, у которого предпочтительно 50 вес.%, в частности, 80 вес.%, предпочтительно 100 вес.% частиц имеют размер более 0,1 мм,
- 0-2 вес.% по меньшей мере одной известной присадки для получения огнеупорных продуктов из шихты,
- 0-4 вес.% по меньшей мере одной известной добавки из жаростойких материалов, в частности, в виде тонкого порошка, предпочтительно также в виде так называемой фракции средней крупности и/или так называемой крупной фракции,
- 0-10 вес.% по меньшей мере одного известного вяжущего для огнеупорных продуктов, например, в сухой форме или в отдельно упакованной жидкой форме.
2. Шихта по п. 1, содержащая свыше 90 вес.%, в частности, свыше 95 вес.% одной из следующих смесей, предпочтительно состоящей из одной из следующих смесей:
- 21-63,7 вес.% по меньшей мере одного указанного оливинового сырья,
- 30-43 вес.% по меньшей мере одной магнезии,
- 5-15 вес.% по меньшей мере одного карбида кремния,
- 0,5-5 вес.% по меньшей мере одной кремниевой кислоты,
- 0,5-2,5 вес.% по меньшей мере одного антиоксиданта,
- 0,1-3,5 вес.% по меньшей мере одного дополнительного жаростойкого сырьевого гранулята,
- 0,1-1,5 вес.% по меньшей мере одной присадки,
- 0,1-3,5 вес.% по меньшей мере одной добавки,
- 0-5 вес.% по меньшей мере одного вяжущего.
3. Шихта по п. 1 и/или 2, отличающаяся тем, что оливиновое сырье является природным оливиновым сырьем и/или полученным искусственно форстеритовым материалом с диапазонами крупности частиц оливинового сырья, соответствующими так называемой области средней и крупной фракций, например, от 0,1 до 6, в частности, от 1 до 6 мм и предпочтительно с гауссовым распределением частиц по размерам.
4. Шихта по одному или нескольким из пп.1-3, отличающаяся тем, что содержание MgO в порошке магнезии составляет более 90 вес.%, в частности, более 95 вес.%, а гранулометрический состав порошка магнезии соответствует, например, распределению Гаусса.
5. Шихта по одному или нескольким из пп. 1-4, отличающаяся тем, что порошок карбида кремния имеет чистоту более 90 вес.%, в частности, более 94 вес.% и предпочтительно имеет гауссово распределение частиц по размерам.
6. Шихта по одному или нескольким из пп. 1-5, отличающаяся тем, что кремниевая кислота представляет собой по меньшей мере одну кварцевую муку с размером зерна менее 500 мкм и/или по меньшей мере одну пирогенную кремниевую кислоту, и/или по меньшей мере одну осажденную кремниевую кислоту, и/или по меньшей мере один микрокремнезем.
7. Шихта по одному или нескольким из пп. 1-6, отличающаяся тем, что по меньшей мере одна присадка выбрана из следующей группы: разжижитель, например, Castament (FS20), производства BASF, или Dolapix (FF44), производства Zschimmer & Schwarz.
8. Шихта по одному или нескольким из пп. 1-7, отличающаяся тем, что по меньшей мере один гранулированный заполнитель и/или добавка выбраны из следующей группы: магнезиохромит, магнезиальная шпинель, шпинели, оксид хрома, оксид циркония, нитрид кремния, циркон.
9. Способ получения огнеупорного продукта с применением шихты по одному или нескольким из пп. 1-8, отличающийся тем, что шихту замешивают с водой до получения жидкой массы, массу вводят в форму и формуют с получением формованного изделия и затем массу формованного изделия оставляют застывать и формованное изделие сушат, в частности, до максимальной остаточной влажности от 0,1 до 4,5 вес.%.
10. Способ по п. 9, отличающийся тем, что отверждение и сушка прессованных продуктов проводятся при температурах от 50°C до 200°C, в частности, от 100°C до 150°C.
11. Способ по п. 9 и/или 10, отличающийся тем, что для монолитных сборных строительных элементов и литейных масс отверждение проводят при температурах от 15°C до 35°C, а сушку при температурах от 50°C до 200°C, в частности, от 100°C до 150°C.
12. Способ по одному или нескольким из пп. 9-11, отличающийся тем, что влажную массу прессуют с получением фасонных кирпичей и фасонные кирпичи оставляют отверждаться и сушат, причем фасонные кирпичи предпочтительно обжигают в печи для обжига керамики в условиях обжига керамики, в частности, при температурах от 1000°C до 1300°C, предпочтительно от 1150°C до 1250°C, в окислительной атмосфере, предпочтительно в восстановительной атмосфере, например, при продолжительности обжига от 4 до 8, в частности, от 5 до 8 ч.
13. Способ по одному из пп. 9-12, отличающийся тем, что для получения огнеупорных продуктов шихту смешивают в комбинации с водой или, вместо воды, с по меньшей мере одним содержащим воду вяжущим, например, в количестве 1-10 вес.%, до образования пластичной массы.
14. Способ по одному из пп. 9-12, отличающийся тем, что шихту вместо воды смешивают с по меньшей мере одним вяжущим из группы пека и/или дегтя и синтетических смол, например, в количестве 2-5 вес.% до образования пластичной массы.
15. Фасонный кирпич, полученный по п. 12, имеющий плотность в необожженном состоянии от 2,65 до 2,80 кг/м3 и прочность на сжатие от 25 до 50, в частности, от 35 до 45 МПа.
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DE102014019351A1 (de) | 2014-12-22 | 2016-06-23 | Refratechnik Holding Gmbh | Feuerfeste Erzeugnisse und ihre Verwendung |
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PL3098208T3 (pl) * | 2015-05-28 | 2020-01-31 | Refractory Intellectual Property Gmbh & Co. Kg | Sposób wytwarzania surowca do wytwarzania ogniotrwałych wyrobów ceramicznych oraz surowiec do wytwarzania ogniotrwałych wyrobów ceramicznych |
CN105330272A (zh) * | 2015-09-28 | 2016-02-17 | 洛阳暖盈电子技术有限公司 | 一种新型的陶瓷涂层 |
BR112017001900A2 (pt) * | 2015-12-29 | 2018-06-05 | The Siam Refractory Ind Co Ltd | ?tijolo refratário, a sua composição e o processo para a sua fabricação?. |
RU2694363C1 (ru) * | 2016-02-19 | 2019-07-12 | Общество С Ограниченной Ответственностью "Ника-Петротэк" | Керамический расклинивающий агент и его способ получения |
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2013
- 2013-06-28 DE DE202013011886.5U patent/DE202013011886U1/de not_active Expired - Lifetime
- 2013-06-28 DE DE102013010854.3A patent/DE102013010854A1/de not_active Withdrawn
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2014
- 2014-04-30 CA CA2912297A patent/CA2912297A1/en not_active Abandoned
- 2014-04-30 ES ES16176221.6T patent/ES2693897T3/es active Active
- 2014-04-30 PL PL16176221T patent/PL3090992T3/pl unknown
- 2014-04-30 RS RS20190635A patent/RS58758B9/sr unknown
- 2014-04-30 AU AU2014301579A patent/AU2014301579B2/en not_active Ceased
- 2014-04-30 SI SI201430899T patent/SI3090992T1/sl unknown
- 2014-04-30 US US14/392,217 patent/US10093581B2/en not_active Expired - Fee Related
- 2014-04-30 EP EP14722161.8A patent/EP3013769B1/de active Active
- 2014-04-30 TR TR2019/07871T patent/TR201907871T4/tr unknown
- 2014-04-30 ES ES14722161T patent/ES2728304T3/es active Active
- 2014-04-30 RU RU2016102423A patent/RU2677726C2/ru active
- 2014-04-30 WO PCT/EP2014/058851 patent/WO2014206602A1/de active Application Filing
- 2014-04-30 JP JP2016522347A patent/JP6505094B2/ja not_active Expired - Fee Related
- 2014-04-30 CN CN201480028476.4A patent/CN105263883A/zh active Pending
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- 2014-04-30 EP EP16176221.6A patent/EP3090992B1/de active Active
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