RU2017126131A - Огнеупоры и их применение - Google Patents

Огнеупоры и их применение Download PDF

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RU2017126131A
RU2017126131A RU2017126131A RU2017126131A RU2017126131A RU 2017126131 A RU2017126131 A RU 2017126131A RU 2017126131 A RU2017126131 A RU 2017126131A RU 2017126131 A RU2017126131 A RU 2017126131A RU 2017126131 A RU2017126131 A RU 2017126131A
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refractory
mixture
binder
paragraphs
melts
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RU2017126131A
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RU2712870C2 (ru
RU2017126131A3 (ru
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Хельге Янсен
Томас ШЕММЕЛЬ
Фолькер ШТАЙН
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Рефратехник Холдинг Гмбх
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Claims (20)

1. Огнеупор в форме сухой минеральной шихты из огнеупорных минеральных материалов, по составу материалов скомпонованный так, чтобы из него можно было получать огнеупорные продукты, длительно устойчивые к фаялитовым шлакам, сульфидным расплавам (штейнам), сульфатам и расплавам цветных металлов, для футеровки с огневой стороны промышленных печей для выплавки цветных металлов, и содержащий по меньшей мере:
по меньшей мере одно крупнозернистое магнезитовое сырье в качестве главного компонента,
порошок магнезии (MgO-мука),
по меньшей мере один жаропрочный реагент, действующий в процессе плавки (in situ) как восстановитель на расплавы оксидов цветного металла и/или расплавы оксида железа-цветного металла и превращающий их в расплавы цветного металла.
2. Огнеупор по п. 1, отличающийся тем, что упомянутый реагент представляет собой тонкодисперсный углерод, в частности, графит, и/или сажу, и/или антрацит, и/или кокс, предпочтительно графит.
3. Огнеупор по п. 1 и/или 2, отличающийся следующим составом по сухому веществу:
30-74, в частности, 40-60 вес.% крупнозернистой магнезии, в частности, с содержанием MgO более чем 90 вес.%, в частности, более чем 95 вес.%,
25-50, в частности, 35-45 вес.% порошка магнезии, в частности, с >90, в частности, >95 вес.% MgO,
1-20, в частности, 5-15 вес.% реагента.
4. Огнеупор по одному или нескольким пп. 1-3, отличающийся тем, что шихта дополнительно содержит SiC, предпочтительно в количестве до 15 вес.%, в частности, до 10 вес.%.
5. Огнеупор по одному или нескольким пунктам 1-4, отличающийся тем, что шихта дополнительно содержит по меньшей мере одну тонкодисперсную кремниевую кислоту, при добавлении воды в шихту реагирующую с порошком MgO с образованием фазы гидрата силиката магния, предпочтительно в количестве до 8 вес.%, в частности, до 5 вес.%.
6. Огнеупор по одному или нескольким пп. 1-5, отличающийся тем, что шихта дополнительно содержит по меньшей мере одно известное связующее для огнеупорных продуктов в сухой тонкодисперсной форме, предпочтительно в количестве до 10 вес.%, в частности, от 0,1 до 6 вес.%.
7. Шихта по п. 6, отличающаяся тем, что связующее является углеродсодержащим связующим, в частности, смолой и/или пеком, предпочтительно синтетическим полимерным связующим.
8. Огнеупор в виде формованного огнеупорного кирпича, полученного из огнеупорной шихты по одному или нескольким пп. 1-7 путем смешения шихты с водой и/или жидким связующим для огнеупорных продуктов с образованием формующейся свежей массы, прессования свежей массы и, предпочтительно, сушки и/или отжига кирпича, причем кирпич в своей структуре содержит по меньшей мере компоненты по одному или нескольким пп. 1-5.
9. Огнеупор по п. 8, содержащий по меньшей мере одну фазу связующего отвержденную из связующего для огнеупорных продуктов, прочно связывающую частицы шихты.
10. Огнеупор по п. 8 и/или 9, отличающийся тем, что кирпич подвергают высокотемпературному обжигу, и он содержит спекшиеся мостики между зернами шихты.
11. Огнеупор по одному или нескольким пп. 8-10, отличающийся тем, что связующая фаза имеет коксовый каркас.
12. Огнеупор по п. 8 и/или 9, а также п. 11, отличающийся тем, что связующая фаза содержит гидрат силиката магния.
13. Огнеупор в виде огнеупорной каменной кладки с огневой стороны в промышленной печи для выплавки цветных металлов, в частности, медеплавильной печи, выложенной огнеупорными кирпичами по одному или нескольким пп. 8-12.
14. Огнеупор в форме монолитной огнеупорной футеровки с огневой стороны промышленной печи для выплавки цветных металлов, в частности, медеплавильной печи, полученный путем смешения шихты по одному или нескольким пп. 1-7 с водой и/или жидким связующим для огнеупорных продуктов с образованием свежей массы, обмуровки внутренних стенок плавильной печи свежей массой и, предпочтительно, сушки и/или отжига футеровки.
RU2017126131A 2014-12-22 2015-11-30 Огнеупоры и их применение RU2712870C2 (ru)

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DE102014019347.0A DE102014019347A1 (de) 2014-12-22 2014-12-22 Feuerfeste Erzeugnisse und ihre Verwendung
DE102014019347.0 2014-12-22
PCT/EP2015/078079 WO2016102149A1 (de) 2014-12-22 2015-11-30 Feuerfeste erzeugnisse und ihre verwendung

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RU2017126131A true RU2017126131A (ru) 2019-01-24
RU2712870C2 RU2712870C2 (ru) 2020-01-31

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EP3237356A1 (de) 2017-11-01
RU2712870C2 (ru) 2020-01-31
CL2017001597A1 (es) 2018-04-02
JP2018505835A (ja) 2018-03-01
CN107108368A (zh) 2017-08-29
US10227260B2 (en) 2019-03-12
RS64186B1 (sr) 2023-06-30
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CN107108368B (zh) 2021-06-22
ZA201704105B (en) 2018-08-29
CA2971765A1 (en) 2016-06-30
RU2017126131A3 (ru) 2019-01-24
AU2015371612A1 (en) 2017-07-27
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AU2015371612B2 (en) 2018-06-14
EP3237356B1 (de) 2023-03-01
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BR112017013141A2 (pt) 2018-01-02
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