CN100441540C - 一种用于保护耐火材料的产品 - Google Patents
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- 239000011819 refractory material Substances 0.000 title claims abstract description 30
- 230000004907 flux Effects 0.000 claims abstract description 23
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims abstract description 9
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims abstract description 9
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052796 boron Inorganic materials 0.000 claims abstract description 8
- IJKVHSBPTUYDLN-UHFFFAOYSA-N dihydroxy(oxo)silane Chemical class O[Si](O)=O IJKVHSBPTUYDLN-UHFFFAOYSA-N 0.000 claims abstract description 8
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical class O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052938 sodium sulfate Inorganic materials 0.000 claims abstract description 8
- 235000011152 sodium sulphate Nutrition 0.000 claims abstract description 8
- 229910021538 borax Inorganic materials 0.000 claims abstract description 6
- 235000010339 sodium tetraborate Nutrition 0.000 claims abstract description 6
- 239000004327 boric acid Substances 0.000 claims abstract description 5
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 5
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 14
- 235000012239 silicon dioxide Nutrition 0.000 claims description 14
- 239000000919 ceramic Substances 0.000 claims description 10
- 239000003513 alkali Substances 0.000 claims description 7
- 229910000272 alkali metal oxide Inorganic materials 0.000 claims description 7
- 150000001447 alkali salts Chemical class 0.000 claims description 7
- 235000015320 potassium carbonate Nutrition 0.000 claims description 7
- 239000000377 silicon dioxide Substances 0.000 claims description 7
- 229960001866 silicon dioxide Drugs 0.000 claims description 7
- 208000034189 Sclerosis Diseases 0.000 claims description 6
- 229910052728 basic metal Inorganic materials 0.000 claims description 6
- 150000003818 basic metals Chemical class 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 235000019353 potassium silicate Nutrition 0.000 claims description 6
- UQGFMSUEHSUPRD-UHFFFAOYSA-N disodium;3,7-dioxido-2,4,6,8,9-pentaoxa-1,3,5,7-tetraborabicyclo[3.3.1]nonane Chemical compound [Na+].[Na+].O1B([O-])OB2OB([O-])OB1O2 UQGFMSUEHSUPRD-UHFFFAOYSA-N 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 5
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 5
- 239000004328 sodium tetraborate Substances 0.000 claims description 5
- 239000004111 Potassium silicate Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 229910052913 potassium silicate Inorganic materials 0.000 claims description 3
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 claims description 3
- 239000004115 Sodium Silicate Substances 0.000 claims description 2
- 230000036571 hydration Effects 0.000 claims description 2
- 238000006703 hydration reaction Methods 0.000 claims description 2
- 235000017550 sodium carbonate Nutrition 0.000 claims description 2
- 235000019795 sodium metasilicate Nutrition 0.000 claims description 2
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 2
- 125000005619 boric acid group Chemical group 0.000 claims 1
- 238000002663 nebulization Methods 0.000 claims 1
- 239000000571 coke Substances 0.000 abstract description 7
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- 150000002739 metals Chemical class 0.000 abstract 2
- 238000007670 refining Methods 0.000 abstract 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 abstract 1
- 159000000011 group IA salts Chemical class 0.000 abstract 1
- 229910000027 potassium carbonate Inorganic materials 0.000 abstract 1
- BSVBQGMMJUBVOD-UHFFFAOYSA-N trisodium borate Chemical compound [Na+].[Na+].[Na+].[O-]B([O-])[O-] BSVBQGMMJUBVOD-UHFFFAOYSA-N 0.000 abstract 1
- 239000000047 product Substances 0.000 description 25
- 238000000034 method Methods 0.000 description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 229910002804 graphite Inorganic materials 0.000 description 6
- 239000010439 graphite Substances 0.000 description 6
- 238000005382 thermal cycling Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 230000008021 deposition Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000011378 shotcrete Substances 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
本发明公开一种在耐火材料的保护和可能的修补中使用的产品，其由硅酸和/或偏硅酸的碱性盐、熔剂和精炼产品组成。该熔剂包括源于碱性金属的熔剂和源于硼的硬化熔剂，更特别地源于碱性金属的熔剂可以是碳酸钠和/或碳酸钾，源于硼的硬化熔剂可以是硼酸或硼酸钠。该精炼产品可以由硫酸钠组成。该产品主要但不限用于炼焦炉的耐火材料处理中。
Description
本发明的主题是一种用于保护和修补耐火材料、特别是但不限于炼焦炉的耐火材料的产品。
在炼焦炉的应用中，形成炉壁和顶部水平通道的耐火材料会因焦炭所产生的热压和磨损受损，尤其是当从炼焦炉中取出焦炭时。这种结果造成耐火材料磨损和出现裂缝，从而接着需要进行修补。此外，在炼焦炉的操作中会发生石墨沉积，而石墨是应该除去的。即使这些现象不涉及到需要过早地替换耐火材料时，也会经常迫使在平均3～4天的时间内停止炼焦炉的操作来进行修补和清洁，从而加重了炼焦炉的操作成本。
耐火材料的损伤也会造成污染粉末、焦炉气和多核芳香烃从烟囱排放出来并扩散到环境中。
当前耐火材料的磨损和裂缝可使用三种方法来修补：雾化难熔耐火材料，喷溅水泥材料和水(所谓的水泥枪)，及陶瓷焊接。
第一种方法由雾化耐火材料组成，其缺点在于这样进行的修补耐用性受限。
第二种方法(水泥枪)仅适于对炼焦炉的外部进行临时修补。
第三种方法由陶瓷焊接构成，这种方法与上述的任一种方法相比可使修补更有效和更耐用，并能够有效地修补更明显的裂缝，然而这种方法需要成本较大并需要从炉壁上除去耐火材料。
这些方法仅能进行修补，并且没有一种方法能够增强耐火材料对损伤后续的抵抗性。目前商业上没有公知的粉末产品对耐火材料进行处理以增强其对损伤的抵抗性。
上面讨论的问题是炼焦炉中所用的耐火材料的特性，然而在其它应用中所用的耐火材料也存在相似的问题。
因此，本发明的第一个目的是开发一种产品，其适于涂覆在耐火材料上用以增强耐火材料对引起损伤的一些因素的抵抗性。
本发明的另一个目的是开发一种产品，当将其涂覆在耐火材料上时其也应适于修补某些损伤或缺陷。
本发明的另一个目的是开发一种产品，当将其涂覆在耐火材料上时不会产生问题，并且可通过低成本的简单操作实现。
最后，本发明的另一个目的是开发一种产品，该产品的制造不会有技术难题，并且低成本，不需要使用昂贵、难于发现或者会对工人或环境造成损害的物质。
根据本发明，在耐火材料的保护和修补中使用的产品含有硅酸和/或偏硅酸的碱性盐、熔剂和精炼产品。
优选地，该熔剂包括源于碱性金属的熔剂和源于硼的硬化熔剂。
硅酸和/或偏硅酸的碱性盐的作用是在该产品涂覆于其上的耐火材料表面形成具有较高硬度的玻璃质或陶瓷层。这种层可有效地防止耐火材料受磨损，并可减小与焦炭的摩擦系数，从而降低从炼焦炉中取出焦炭时的阻力，并适于遮住进而修补至少是较小的裂缝。
熔剂的作用是使所述玻璃质或陶瓷层的形成更容易并且更均匀，源于硼的熔剂也具有增强所述玻璃质或陶瓷层硬度的作用。
精炼产品的作用是在所述玻璃质或陶瓷层的形成中抑制或降低成分的不均匀性。
优选地，该硅酸和/或偏硅酸的碱性盐中碱和二氧化硅的重量比为1∶1～1∶3。
优选地，该源于碱性金属的熔剂是碳酸钠和/或碳酸钾。
优选地，该源于硼的硬化熔剂是硼酸或硼酸钠。
优选地，该精炼产品包括硫酸钠。
优选地，该产品中所含的硅酸和/或偏硅酸的碱性盐其重量比为30％～60％，更优选为45％～60％。
优选地，该产品中所含的源于碱性金属的熔剂其重量比为10％～25％，更优选为10％～20％。
优选地，该产品中所含的源于硼的硬化熔剂其重量比为10％～30％，更优选为10％～25％。
优选地，该产品中所含的精炼产品其重量比为3％～10％，更优选为5％～7％。
从前述的可以认识到，本发明的产品不需要使用昂贵、难于发现或者会对人或环境造成损害的成分。可以通过使用对于雾化其它产品所公知并可利用的技术和设备进行雾化而将其涂覆到耐火材料上，而不会产生任何特别的难题。
在涂覆本发明的产品之后，在继续这种操作之前的适合的加热过程中，在耐火材料上形成有玻璃质或陶瓷层，其表面光滑、高硬度、高耐热性和耐机械性、低摩擦系数；其可遮住和修补至少是较小的裂缝，并保护耐火材料外露的表面，从而可明显增加其耐用性，并明显降低对修补的需要。
由于耐火材料的表面是光滑的，所以当从炼焦炉中取出焦炭时可降低应力，而对这些材料较小的损伤又可高度降低从烟囱排放出的粉末。此外，产生的玻璃质或陶瓷层对石墨有较差的粘性，因而石墨的沉积降低，使得对除去石墨的需要降低，并且石墨的除去也更容易。
为更好地阐明本发明，下面说明本发明优选实施方案的一些实施例。
实施例1
此实施例产品的详细组成如下：
碱/二氧化硅的重量比为1∶1的五水合或无水偏硅酸钠 58％
硼酸 15％
碳酸钾 20％
硫酸钠 7％
按这种组成，当继续操作前通过热循环方式进行加热(在1200℃下进行(火炉中的温度)第一次加热10小时，然后在1000℃下加热4小时，最后在1200℃下加热6-8小时)可得到极好的结果。
实施例2
此实施例产品的详细组成如下：
碱/二氧化硅的重量比为1∶2的硅酸钠或硅酸钾 60％
硼酸钠 20％
碳酸钾 18％
硫酸钠 5％
按这种组成，当继续操作前通过相应于实施例1中所述的热循环方式进行加热可得到极好的结果。
实施例3
此实施例产品的详细组成如下：
碱/二氧化硅的重量比为1∶3的硅酸钠或硅酸钾 54.0％
硼酸钠 25.0％
碳酸钾 15.5％
硫酸钠 5.5％
按这种组成，当继续操作前通过热循环方式进行加热(包括在至少为900℃(火炉中的温度为1000～1050℃)的炉壁温度下进行加热24小时)可得到极好的结果。
当然，所述的组分可用技术上等效的其它组分来代替，所述的热循环是优选的一种，但可用适于产生相似现象(由产品形成玻璃质或陶瓷层)的其它热循环来代替。
应该理解本发明不限于所述的实施方案。本领域所属技术人员可能做出几种变化，特别是用技术上的等效物来代替某些组分，也可能增加其它组成，也可能在继续操作前改变用于产品的热循环。这些变化没有脱离权利要求书所述的本发明的精神。
Claims (11)
1.一种通过干燥雾化制备的用于耐火材料的保护和修补的粉末状产品，特征在于其包括：
a)硅酸和/或偏硅酸的碱性盐，
b)熔剂，其包括源于碱性金属的熔剂和源于硼的硬化熔剂，和
c)作为精炼产品的硫酸钠，其作用是在玻璃质或陶瓷层的形成中抑制或降低成分的不均匀性。
2.如权利要求1的产品，其中所述硅酸和/或偏硅酸的碱性盐中，碱和二氧化硅的重量比为1∶1～1∶3。
3.如权利要求1的产品，其中所述的源于碱性金属的熔剂是碳酸钠和/或碳酸钾。
4.如权利要求1的产品，其中所述的硬化熔剂为硼酸或硼酸钠。
5.如权利要求1所述的产品，特征在于所述产品中所含的硅酸和/或偏硅酸的碱性盐其重量百分比为30％～60％。
6.如权利要求1所述的产品，特征在于所述产品中所含的源于碱性金属的熔剂其重量百分比为10％～25％。
7.如权利要求1所述的产品，特征在于所述产品中所含的源于硼的硬化熔剂其重量百分比为10％～30％。
8.如权利要求1所述的产品，特征在于所述产品中所含的精炼产品其重量百分比为3％～10％。
9.如权利要求1所述的产品，特征在于组成如下：
碱/二氧化硅的重量比为1∶1的五水合或无水偏硅酸钠 58％
硼酸 15％
碳酸钾 20％
硫酸钠 7％
10.如权利要求1所述的产品，特征在于组成如下：
碱/二氧化硅的重量比为1∶3的硅酸钠或硅酸钾 54.0％
硼酸钠 25.0％
碳酸钾 15.5％
硫酸钠 5.5％
11.如权利要求1所述的产品在耐火材料的保护和修补中的用途。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT2002TO000217A ITTO20020217A1 (it) | 2002-03-13 | 2002-03-13 | Prodotto per la protezione di materiali refrattari. |
| ITTO2002A000217 | 2002-03-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1639083A CN1639083A (zh) | 2005-07-13 |
| CN100441540C true CN100441540C (zh) | 2008-12-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB038056658A Expired - Fee Related CN100441540C (zh) | 2002-03-13 | 2003-03-04 | 一种用于保护耐火材料的产品 |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP1513780A1 (zh) |
| CN (1) | CN100441540C (zh) |
| AU (1) | AU2003214094A1 (zh) |
| BR (1) | BR0303386A (zh) |
| IT (1) | ITTO20020217A1 (zh) |
| NO (1) | NO20034586D0 (zh) |
| PL (1) | PL205514B1 (zh) |
| WO (1) | WO2003076357A1 (zh) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE112005001511T5 (de) * | 2004-07-05 | 2007-05-24 | Abc Research Laboratory For Building Materials Co., Ltd. | Schneeschmelz-/Gefrierschutzmittel |
| BE1017674A3 (fr) * | 2007-07-05 | 2009-03-03 | Fib Services Internat | Composition de traitement de chambre a parois refractaires et son procede de mise en oeuvre. |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR779168A (fr) * | 1934-10-02 | 1935-03-30 | Cie Internationale De Produits | Perfectionnements apportés aux enduits ignifuges et calorifuges |
| EP0708069A1 (en) * | 1994-10-14 | 1996-04-24 | Kawasaki Steel Corporation | Surface-treating agent for high-temperature refractory material and method for treatment therewith |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7213626A (zh) * | 1972-10-09 | 1974-04-11 |
-
2002
- 2002-03-13 IT IT2002TO000217A patent/ITTO20020217A1/it unknown
-
2003
- 2003-03-04 WO PCT/EP2003/002223 patent/WO2003076357A1/en not_active Application Discontinuation
- 2003-03-04 BR BR0303386-4A patent/BR0303386A/pt not_active Application Discontinuation
- 2003-03-04 CN CNB038056658A patent/CN100441540C/zh not_active Expired - Fee Related
- 2003-03-04 EP EP03709747A patent/EP1513780A1/en not_active Withdrawn
- 2003-03-04 AU AU2003214094A patent/AU2003214094A1/en not_active Abandoned
- 2003-03-04 PL PL372348A patent/PL205514B1/pl unknown
- 2003-10-13 NO NO20034586A patent/NO20034586D0/no unknown
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR779168A (fr) * | 1934-10-02 | 1935-03-30 | Cie Internationale De Produits | Perfectionnements apportés aux enduits ignifuges et calorifuges |
| EP0708069A1 (en) * | 1994-10-14 | 1996-04-24 | Kawasaki Steel Corporation | Surface-treating agent for high-temperature refractory material and method for treatment therewith |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1513780A1 (en) | 2005-03-16 |
| PL372348A1 (en) | 2005-07-11 |
| ITTO20020217A0 (it) | 2002-03-13 |
| CN1639083A (zh) | 2005-07-13 |
| BR0303386A (pt) | 2004-03-30 |
| PL205514B1 (pl) | 2010-04-30 |
| ITTO20020217A1 (it) | 2003-09-15 |
| NO20034586L (no) | 2003-10-13 |
| WO2003076357A1 (en) | 2003-09-18 |
| NO20034586D0 (no) | 2003-10-13 |
| AU2003214094A1 (en) | 2003-09-22 |
| WO2003076357B1 (en) | 2005-01-06 |
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