CN1116423A - 在高温下应用的石英预制件及其生产方法 - Google Patents
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims description 8
- 239000005350 fused silica glass Substances 0.000 title abstract 6
- 239000004568 cement Substances 0.000 claims abstract description 13
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 7
- 235000019830 sodium polyphosphate Nutrition 0.000 claims abstract description 6
- 239000010453 quartz Substances 0.000 claims description 22
- 239000002245 particle Substances 0.000 claims description 18
- 239000011574 phosphorus Substances 0.000 claims description 9
- 229910052698 phosphorus Inorganic materials 0.000 claims description 9
- -1 phosphorus compound Chemical class 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 8
- 239000000843 powder Substances 0.000 claims description 5
- 238000004438 BET method Methods 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000002562 thickening agent Substances 0.000 claims description 3
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims 1
- 239000011148 porous material Substances 0.000 claims 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract description 14
- 229910052681 coesite Inorganic materials 0.000 abstract description 2
- 229910052906 cristobalite Inorganic materials 0.000 abstract description 2
- 229910052682 stishovite Inorganic materials 0.000 abstract description 2
- 229910052905 tridymite Inorganic materials 0.000 abstract description 2
- 239000000571 coke Substances 0.000 abstract 1
- 150000003018 phosphorus compounds Chemical class 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 239000011449 brick Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000009970 fire resistant effect Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 206010009866 Cold sweat Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
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Abstract
用于非常高的温度下，尤其是用于修建炼焦炉的SiO2含量超过90％(重量)的熔凝石英预制件，其特征在于它含有20至50％(重量)的颗粒尺寸为1至6mm的石英、20％至40％(重量)颗粒尺寸为0.1至1mm的石英、15至35％(重量)其中颗粒全都小于0.1mm的细磨石英、1至10％(重量)的具有根据BET法每克大于20m2的比表面积的石英粉、1至10％(重量)的水泥和0.1至8％(重量)的磷化合物，尤其是聚磷酸钠。
Description
本发明涉及一种如权利要求1所述的石英预制件以及生产该预制件的方法。
从德国已公开的专利申请2947182中清楚地知道有一种用于开头提到的权利要求1中的那种炼焦炉耐火砖材料。它主要含有SiO2和一种粘合剂，它适用于模铸砖块，并尤其适用于以单件形式制成的炼焦炉壁。
开头提到的那种预制件通常可用于非常高的温度。例如，在陶瓷工业上它们用于窑炉设备，在玻璃工业上则可用在不与熔融玻璃接触的区域，例如用作屏蔽砖。
当开头提到的那种石英预制件用于炼焦炉时，要求其在加压下的高温蠕变尽可能低。在实际操作中，由开头提到的那种石英预制件制成的炼焦炉间壁是要从上方承受压力负荷的，其中如满载装料车的重量所给予的压力负荷。而且在预制件温度变化的情况下，其稳定性应尽可能高。在实际操作中，该炽热的间壁在每次加料时与冷湿的煤重新接触，而在出料时又受到冷空气的冲击。并且预制件的磨损应该很低。最后一点，在炼焦炉中使用预制件需要良好的热传导，即尽可能好的热导率。
这些就是本发明欲解决的问题。考虑到上述的需求，本发明的目的在于进一步开发开头提到的熔凝石英预制件，要求它含有尽可能多的非晶形SiO2成分，并且生产方便而又成本低。
这个目的是通过下述一种熔凝预制件达到的，其特征在于它含有20至50％(重量)的颗粒尺寸为1至6mm的石英、20％至40％(重量)颗粒尺寸为0.1至1mm的石英、15至35％(重量)其中颗粒全都小于0.1mm的细磨石英、1至10％(重量)的具有根据BET法每克大于20m2比表面积的石英粉、1至10％(重量)的水泥和0.1至8％(重量)的磷化合物，尤其是聚磷酸钠。
达到这个目的的方法过程是将上述四部分石英首先与水泥和磷化合物干混，然后加入干混合物量5至10％(较好为7％)的混合用水，再混合几分钟(较好5分钟)直至均匀，然后将所得糊料装入一模具中。
该磷化合物和水泥的作用是构成了一种粘合体系，四部分石英的耐火基材嵌居于其中。粘合剂部分的量有意保持较低，以便预制件具有尽可能高的SiO2含量。用于本发明预制件的混合物，在英语中称作“low cement castable”。这种有四部分石英的混合物产生了一种既坚固，而其中孔隙又充分填满的结构体。强度是通过尺寸范围为1至6mm的相对较大的颗粒达到的。石英粉的颗粒是高度分散，球形的，与润滑剂类似，它能使各部分石英混合得特别好。细磨石英的颗粒和尺寸在0.1至1mm范围内的石英颗粒填入粗颗粒(即尺寸为1至6mm的石英颗粒)之间的空间，结果在预制件中石英颗粒之间除了有主要是毛细的孔隙外，并无明显的孔隙。选择和调节水泥和磷化合物(较好为聚磷酸钠)粘合***，使预制件具有足够的强度能从模具中取出、搬动以及能在施加中间砂浆层的条件下竖立间壁。然后令该预制件进入工作温度，烧结过程便开始进行，各部分石英就结合在一起，因此实际上不再需要水泥和磷化合物粘合剂。
根据本发明生产的石英预制件具有大于1.7g/m3的松装密度，较好情况下大于1.8g/m3。开口孔隙度低于18％(体积)，较好情况下低于14％(体积)。该预制件在110℃至1500℃的整个温度范围具有超过30MPa的优良的冷抗压强度。在温度范围为1000℃至1200℃的抗压强度高于60MPa。
这种石英预制件在压力作用下的蠕变行为对用于炼焦炉的间壁也是有利的。在1200℃以及0.5MPa的负载条件下，在操作的第五和第二十五小时之间没能测到蠕变的发生。磨耗是符合ASTM标准的。
根据本发明的熔凝石英预制件具有纯熔凝石英的质量，然而由于添加了粘合剂，其生产更经济而且显著加快。该种预制件基本上是热中性的，因此几乎没有热膨胀，尤其是在1000℃区域其热膨胀可忽略不计。在预制件的生产中，必须注意将杂质污染减至最小程度。杂质会使耐火质量下降，而且也影响物理性能。
使用了质量尽可能高的水泥，尤其是一种铝酸钙，其典型成分为含有80％(重量)的Al2O3和20％(重量)的CaO。
根据本发明，预制件可如同专利申请P42 44 547.7那样进行生产。
根据本发明的预制件可以化学地表征如下：
SiO2 92至99.5％
Al2O3 0.1至8.0％
Fe2O3 最高值0.2％
P2O5 0.01至1.0％
CaO 0.1至2.0％所有数值均为重量百分数。
Claims (11)
1.用于非常高的温度下，尤其是用于修建炼焦炉的SiO2含量超过90％(重量)的熔凝石英预制件，其特征在于它含有20至50％(重量)的颗粒尺寸为1至6mm的石英、20％至40％(重量)颗粒尺寸为0.1至1mm的石英、15至35％(重量)其中颗粒全都小于0.1mm的细磨石英、1至10％(重量)的具有根据BET法每克大于20m2的比表面积的石英粉、1至10％(重量)的水泥和0.1至8％(重量)的磷化合物，尤其是聚磷酸钠。
2.如权利要求1所述的熔凝石英预制件，其特征在于它含有25至45％(重量)的颗粒尺寸为1至6mm的石英、25％至30％(重量)颗粒尺寸为0.1至1mm的石英、20至30％(重量)其中颗粒全都小于0.1mm的细磨石英、1至8％(重量)的具有根据BET法每克大于20m2的比表面积的石英粉、1至8％(重量)的水泥和0.1至5％(重量)的磷化合物，尤其是聚磷酸钠。
3.如权利要求1或2所述的熔凝石英预制件，其特征在于它包括30至44％(重量)的颗粒尺寸为1至6mm的石英、28％至32％(重量)颗粒尺寸为0.1至1mm的石英、22至36％(重量)其中颗粒全都小于0.1mm的细磨石英、3至6％(重量)的具有根据BET法每克大于20m2的比表面积的石英粉、2至6％(重量)的水泥和0.1至3％(重量)的磷化合物，尤其是聚磷酸钠。
4.如权利要求1至3中任何一项所述的熔凝石英预制件，其特征在于其干密度大于1.7g/m3，较好为大于1.8g/cm3。
5.如权利要求1至4中任何一项所述的熔凝石英预制件，其特征在于其开口孔隙度低于18％(体积)，较好情况下低于14％(体积)。
6.如权利要求1至5中任何一项所述的熔凝石英预制件，其特征在于在110℃至1500℃的温度范围具有超过30MPa的冷抗压强度，具体在温度范围为1000℃至1200℃时则高于60MPa。
7.如权利要求1至6中任何一项所述的熔凝石英预制件，其特征在于其中所用的水泥是用铝酸钙，它较好的是含有80％(重量)的Al2O3和20％(重量)的CaO。
8.用于生产如权利要求1至7中任何一项所述的熔凝石英预制件的方法，其特征在于首先干混四部分石英、水泥和磷化合物，然后加入干混合物量的5至10％(较好为7％)的混合用水，再混合几分钟(较好为5分钟)直至均匀，然后将所得糊料装入一模具中。
9.如权利要求8所述的方法，其特征在于模制是通过振动压实进行的。
10.如权利要求8或9所述的方法，其特征在于装有糊料的模具在400℃干燥若干小时，较好为12至24小时，给定的干燥时间则参照模具温度为400℃时的时间长短。
11.如权利要求10所述的方法，其特征在于模具加热至给定温度应缓慢，使得在水分散逸之前表面的孔不封闭，这样制成的预制件毛细孔是开口通向表面的。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP4301846.7 | 1993-01-23 | ||
| DE4301846A DE4301846A1 (de) | 1993-01-23 | 1993-01-23 | Quarzgut-Fertigbauteil für Anwendungen im ff-Bereich und Verfahren zur Herstellung derartiger Fertigbauteile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1116423A true CN1116423A (zh) | 1996-02-07 |
Family
ID=6478823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94190918A Pending CN1116423A (zh) | 1993-01-23 | 1994-01-05 | 在高温下应用的石英预制件及其生产方法 |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US5885913A (zh) |
| EP (1) | EP0680460B1 (zh) |
| JP (1) | JPH08508002A (zh) |
| KR (1) | KR960700202A (zh) |
| CN (1) | CN1116423A (zh) |
| AU (1) | AU682486B2 (zh) |
| BR (1) | BR9406220A (zh) |
| CZ (1) | CZ178695A3 (zh) |
| DE (3) | DE4301846A1 (zh) |
| ES (1) | ES2096443T3 (zh) |
| PL (1) | PL309595A1 (zh) |
| WO (1) | WO1994017009A1 (zh) |
| ZA (1) | ZA94428B (zh) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109072085A (zh) * | 2016-02-25 | 2018-12-21 | 新日铁住金株式会社 | 炼焦炉用预制块状耐火物 |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5885510A (en) * | 1997-02-07 | 1999-03-23 | Alcoa Chemie Gmbh | Methods of making refractory bodies |
| US6165926A (en) * | 1998-06-24 | 2000-12-26 | Alcoa Chemie Gmbh | Castable refractory composition and methods of making refractory bodies |
| US20020128179A1 (en) * | 2000-12-01 | 2002-09-12 | Tacon William C. | Shaped microparticles for pulmonary drug delivery |
| DE10114484C2 (de) * | 2001-03-24 | 2003-10-16 | Heraeus Quarzglas | Verfahren für die Herstellung eines Komposit-Werkstoffs mit einem SiO¶2¶-Gehalt von mindestens 99 Gew.-%, und Verwendung des nach dem Verfahren erhaltenen Komposit-Werkstoffs |
| FI116836B (fi) * | 2003-03-25 | 2006-03-15 | Bet Ker Oy | Lämmönkestävän rakenteen valmistusmenetelmä, lämmönkestävä rakenne, rakennemateriaali ja kuiva-ainekoostumus |
| ES2357567T3 (es) * | 2006-05-16 | 2011-04-27 | Vesuvius Crucible Company | Artículo refractario y procedimiento de producción del mismo. |
| US20110083314A1 (en) * | 2007-03-02 | 2011-04-14 | Saturn Machine & Welding Co., Inc. | Method and apparatus for replacing coke oven wall |
| US20080209849A1 (en) * | 2007-03-02 | 2008-09-04 | Saturn Machine & Welding Co., Inc. | Method and Apparatus for Replacing Coke Oven Wall |
| US8142356B2 (en) * | 2007-03-30 | 2012-03-27 | Ethicon Endo-Surgery, Inc. | Method of manipulating tissue |
| ES2346031B1 (es) * | 2009-04-06 | 2011-07-29 | Carlos Fradera Pellicer | Cuerpo de mortero de cemento. |
| CN103267418A (zh) * | 2013-04-17 | 2013-08-28 | 无锡远能耐火材料有限公司 | 一种抗结皮预制件 |
| CN111334313A (zh) * | 2020-04-01 | 2020-06-26 | 中冶焦耐(大连)工程技术有限公司 | 一种焦炉燃烧室的维修方法 |
| CN113213951B (zh) * | 2021-03-31 | 2023-08-01 | 江苏长城窑炉工程有限公司 | 一种玻璃窑料道熔融石英质盖板砖 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE547007A (zh) * | 1955-05-26 | |||
| FR1156358A (fr) * | 1956-07-13 | 1958-05-14 | Quartz & Silice | Verre de silice |
| GB1290798A (zh) * | 1970-12-29 | 1972-09-27 | ||
| US3814613A (en) * | 1972-12-21 | 1974-06-04 | Steel Corp | Coke-oven patching material |
| US4135939A (en) * | 1976-12-08 | 1979-01-23 | Campana Patsie C | Refractory article and method of making the same |
| US4162179A (en) * | 1976-12-08 | 1979-07-24 | Campana Patsie C | Refractory article and method of making the same |
| FR2429762A1 (fr) * | 1978-06-29 | 1980-01-25 | Carbonisation Entr Ceram | Procede pour la construction de fours a coke, piece obtenue et four realise selon ce procede |
| US4259120A (en) * | 1978-08-02 | 1981-03-31 | United States Steel Corporation | Coke oven patching and sealing material |
| US4230498A (en) * | 1978-08-02 | 1980-10-28 | United States Steel Corporation | Coke oven patching and sealing material |
| CA1143755A (en) * | 1980-01-18 | 1983-03-29 | Frank T. Felice | Refractory composition |
-
1993
- 1993-01-23 DE DE4301846A patent/DE4301846A1/de not_active Withdrawn
-
1994
- 1994-01-05 WO PCT/DE1994/000004 patent/WO1994017009A1/de not_active Application Discontinuation
- 1994-01-05 AU AU58081/94A patent/AU682486B2/en not_active Ceased
- 1994-01-05 ES ES94903731T patent/ES2096443T3/es not_active Expired - Lifetime
- 1994-01-05 KR KR1019950702984A patent/KR960700202A/ko not_active Application Discontinuation
- 1994-01-05 CZ CZ951786A patent/CZ178695A3/cs unknown
- 1994-01-05 DE DE59400856T patent/DE59400856D1/de not_active Expired - Fee Related
- 1994-01-05 CN CN94190918A patent/CN1116423A/zh active Pending
- 1994-01-05 BR BR9406220A patent/BR9406220A/pt not_active Application Discontinuation
- 1994-01-05 PL PL94309595A patent/PL309595A1/xx unknown
- 1994-01-05 JP JP6516546A patent/JPH08508002A/ja active Pending
- 1994-01-05 DE DE4490250T patent/DE4490250D2/de not_active Expired - Fee Related
- 1994-01-05 EP EP94903731A patent/EP0680460B1/de not_active Expired - Lifetime
- 1994-01-21 ZA ZA94428A patent/ZA94428B/xx unknown
-
1995
- 1995-07-24 US US08/505,743 patent/US5885913A/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109072085A (zh) * | 2016-02-25 | 2018-12-21 | 新日铁住金株式会社 | 炼焦炉用预制块状耐火物 |
| CN109072085B (zh) * | 2016-02-25 | 2021-06-08 | 日本制铁株式会社 | 炼焦炉用预制块状耐火物 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE4301846A1 (de) | 1994-07-28 |
| AU682486B2 (en) | 1997-10-09 |
| ZA94428B (en) | 1994-08-31 |
| EP0680460B1 (de) | 1996-10-16 |
| US5885913A (en) | 1999-03-23 |
| BR9406220A (pt) | 1996-01-09 |
| PL309595A1 (en) | 1995-10-30 |
| JPH08508002A (ja) | 1996-08-27 |
| AU5808194A (en) | 1994-08-15 |
| EP0680460A1 (de) | 1995-11-08 |
| DE4490250D2 (de) | 1997-07-31 |
| ES2096443T3 (es) | 1997-03-01 |
| DE59400856D1 (de) | 1996-11-21 |
| CZ178695A3 (en) | 1995-12-13 |
| KR960700202A (ko) | 1996-01-19 |
| WO1994017009A1 (de) | 1994-08-04 |
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