CN101386541A - Anti-acid(alkalis) etching abrasion-proof and refractory pouring material - Google Patents
Anti-acid(alkalis) etching abrasion-proof and refractory pouring material Download PDFInfo
- Publication number
- CN101386541A CN101386541A CNA2007100551377A CN200710055137A CN101386541A CN 101386541 A CN101386541 A CN 101386541A CN A2007100551377 A CNA2007100551377 A CN A2007100551377A CN 200710055137 A CN200710055137 A CN 200710055137A CN 101386541 A CN101386541 A CN 101386541A
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- China
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- particle diameter
- micro mist
- micropowder
- fine powder
- high alumina
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Abstract
The invention provides anti-acid/alkali-erosion wear-resistant refractory castable, which comprises the following compositions in weight percentage: 50 to 60 percent of high alumina/clay granular material as aggregate, 3 to 10 percent of composite aluminate cement as bonding agent, 28 to 35 percent of fine powder which is a mixture of clay/silicon/ high alumina/corundum mineral fine powder, or a mixture of two of the mineral fine powder, or one of the mineral fine powder, as well as 4 to 12 percent of micropowder which is Si micropowder, AL micropowder or Si micropowder and AL micropowder. Compared with the prior art, the refractory castable is more reasonable in composition than that of the prior refractory castable of the same type, and has the characteristics of thinner, lighter and longer life span furnace lining compared with the prior furnace lining, convenient repair, application to acid/alkali high-temperature melt and gas, and reducing atmosphere and oxidizing atmosphere at a temperature of between 800 and 1300 DEG C. The refractory castable can fully meet the new harsher requirements of nonmetal metallurgical furnaces on the furnace linings in resent years.
Description
Technical field
The present invention relates to a kind of refractory materials, particularly relate to a kind of novel Al (OH) that is applied to
3Dilute phase fluidization roasting furnace, producer gas generator, industrial silicon furnace, heavy alkali wasteliquid incinerator and other " three wastes " handle antiacid (alkali) acid (alkalis) etching abrasion-proof and refractory pouring material of stove, be to having the improvement of refractory castable kind of the same type now, belonging to the unsetting special refractories technology of preparing in the field of inorganic nonmetallic material.
Background technology
In light-weight metal metallurfgy, chemical fertilizer, nonmetal metallurgy, weapons manufacturing, stove environment in operational process is comparatively abominable; For example the nearly 1200 ℃ high temperature of blue-gas generator regularly feeds water vapor down and produces water-gas, its reaction is violent, the water-gas strong erosion is bigger to the refractory brick harm of traditional Gas-making Furnace, the body of heater lining brick peels off, falls brick, subsides and often take place, be difficult for repairing, obnoxious flavour permeates from brickwork joint and corrodes furnace shell, causes toxic gas to leak, structure deteriorate, furnace shell burns scorification; The smelting industrial silicon stove, temperature belongs to the nonmetal solution of high-temperature acidic up to 2100 ℃, and silicon liquid is come out of the stove, and the erosion high temperature to casting ladle washes away very serious when toppling over, existing water the erosion that wraps in high-temperature acidic silicon solution and wash away time, have only work-ing life one, 20 time with what refractory brick was built; " red water " incinerator is arranged in the explosive system in the weapon industry, does fuel with heavy oil, with the soda acid composition intersect, " the red water " of foreign matter content complexity ceaselessly spray in the stove with spray gun, carries out burning disposal.Tradition adopts magnesia chrome brick to make furnace lining, and the general life-span is 7 months to 1 year.The coal gas of producer gas generator corrodes, and the high-temperature acidic liquid that industrial silicon connects bag washes away waste liquid decomposition erosion in erosion and the waster water incinerator, is abominable, the very short exemplary of lining life of working conditions in the traditional industry.
Summary of the invention
The present invention has carried out the assembly of science to the prescription composition of refractory castable, by continuous practice in recent years, provide a kind of novel antiacid (alkali) acid (alkalis) etching abrasion-proof and refractory pouring material, it is more reasonable that the prescription of the more former refractory castable of the same type of this refractory castable is formed, its physical and chemical index is more advanced, obtain more remarkable effect after being applied to nonmetal metallurgical furnace, the Al (OH) that can introduce
3But the dilute phase fluidization roasting furnace furnace lining play high abrasion, anti-wash away and have more former furnace lining attenuate loss of weight equally, improve lining life, conveniently repair, be adapted to acid, alkali high-temperature fusant and gas, reducing atmosphere, oxidizing atmosphere be 800 ℃～1300 ℃ characteristics of using down.Fully satisfy nonmetal in recent years metallurgical furnace kiln again furnace lining is proposed new harsh more requirement.
The technical scheme that the present invention provides: this antiacid (alkali) acid (alkalis) etching abrasion-proof and refractory pouring material, its component and weight percent thereof are:
(1), high alumina matter, clay matter particulate material 50～60
Wherein
Particle diameter 0-1mm 5～15
Particle diameter 1-3mm 9～19
Particle diameter 3-6mm 6～26
Particle diameter 6-10mm 5～15
Particle diameter 10-13mm 3～10
(2), fine powder 28-35 (180 orders～320 orders)
(3), micro mist 4-12 (≤10 μ m)
(4), clad aluminum acid salt cement 3-10
Wherein high alumina matter, clay matter particulate material are handled as aggregate and through iron removal by magnetic separation, and the clad aluminum acid salt cement is as wedding agent;
Involved fine powder in technique scheme, its particle diameter is 180 orders-320 orders, it can be the mixture of sticking scholar's matter, siliceous, high alumina matter and any assembly of corundum matter finely-powdered minerals, also can be the mixture of any assembly of two or three finely-powdered minerals wherein, can also be wherein a kind of finely-powdered minerals.
Micro mist in above-mentioned antiacid (alkali) acid (alkalis) etching abrasion-proof and refractory pouring material is the mixture of any assembly of Si micro mist or Al micro mist or Si micro mist and Al micro mist; Wherein Si micro mist and Al micro mist are the mixtures of compound separately, the SiO of Si micro mist
2Content 〉=90%, the Al of Al micro mist
2O
3Content 〉=97%.
In technique scheme, the material of each component that relates in the refractory castable all can be bought from the market, certainly also can prepare voluntarily, the method that system adopts magnetic separation is handled in the deironing of high alumina matter, clay matter particulate material, and its Processes and apparatus is existing mature technology.
The physical and chemical index of flame-proof pouring material special of the present invention:
After 110 ℃ * 24h of the volume density drying〉2.40g/cm
3, 1100 ℃ * 3h burns the back〉and 2.35g/cm
3
After 110 ℃ * 24h of the folding strength drying〉8.9MPa, 1100 ℃ * 3h〉10.2Mpa;
After 110 ℃ * 24h of the ultimate compression strength drying〉60Mpa, 1100 ℃ * 3h〉75.0MPa,
1100 ℃ * 3h burns back line velocity of variation ± 0.2%, total Al
2O
3Content 〉=45, SiO
2≯ 45.
Compared with prior art, the invention has the beneficial effects as follows: with thin furnace lining loss of weight, enlarge furnace volume, increased the material treatment capacity, improved lining life, the convenient repairing adapts to acid (alkali) high-temperature fusant and gas, reducing atmosphere (oxidizing atmosphere) is safe and reliable down at 800 ℃～-1300 ℃.
Embodiment
Embodiment 1
Material is applied in the producer gas generator, and furnace shell is done antirust processing, welds riveting component well with suitable size cloth, and a good mould can direct casting and constructing.
Mould material component and proportioning (weight %):
(1), through removing the clay matter particle 44 that Fe handled
Wherein
Particle diameter 0-1mm 10
Particle diameter 1-3mm 14
Particle diameter 3-6mm 7
Particle diameter 6-10mm 10
Particle diameter 10-13mm 3
(2), through removing the high alumina matter particle 15 that Fe handled
Wherein
Particle diameter 0-1mm 5
Particle diameter 1-3mm 5
Particle diameter 3-6mm 0
Particle diameter 6-10mm 5
Particle diameter 10-13mm 0
(3), 180 orders-320 purpose high-alumina fly, 20 Al
2O
3〉=97%
(4), 320 purpose lapis amiridiss, 10 electric smelting Al
2O
398%
(5), particle diameter≤10 μ mSi micro mists, 2.5 SiO
2Content 〉=90%
(6), particle diameter≤10 μ mAl micro mists, 1.5 a-Al
2O
3Content 〉=97%
(7), the clad aluminum acid salt cement 7
Embodiment 2
Mould material component and proportioning (weight %):
Be applied to introduce Al (OH)
3Dilute phase fluidization roasting furnace (1). through removing clay matter particle and the high alumina matter particulate material 50 that Fe handled
Wherein
Particle diameter 0-1mm 10 a clays material and high alumina material each 5
Particle diameter 1-3mm 20 a clays material and high alumina material each 10
Particle diameter 3-6mm 7 a clays material and high alumina material each 3.5
Particle diameter 6-10mm 15 a clays material and high alumina material each 7.5
Particle diameter 10-13mm 3 a clays material and high alumina material each 1.5
(2), 200 purpose ground silicas, 4 SiO
2Content 〉=90%
(3), 180 orders-320 purpose high alumina fine powder, 20 Al
2O
3Content 〉=95%
(4), 320 purpose lapis amiridiss, 10 electric smelting Al
2O
398%
(5), particle diameter≤10 μ mSi micro mists, 4 SiO
2Content 〉=90%
(6), the clad aluminum acid salt cement 6
Embodiment 3
Mould material component and proportioning (weight %):
Be applied to
Through removing clay matter particle and the high alumina matter particulate material 50 that Fe handled
Wherein
Particle diameter 0-1mm 5 a clays material and high alumina material each 2.5
Particle diameter 1-3mm 7 a clays material and high alumina material each 3.5
Particle diameter 3-6mm 20 a clays material and high alumina material each 10
Particle diameter 6-10mm 10 a clays material and high alumina material each 5
Particle diameter 10-13mm 8 a clays material and high alumina material each 4
(2), 200 purpose ground silicas, 5 SiO
2Content 〉=90%
(3), 180 orders-320 purpose high alumina fine powder, 20 Al
2O
3Content 〉=95%
(4), 320 purpose lapis amiridiss, 10 electric smelting Al
2O
398%
(5), particle diameter≤10 μ mSi micro mists, 12 SiO
2Content 〉=90%
(6), the clad aluminum acid salt cement 3.
Embodiment 4
Mould material component and proportioning (weight %):
Be applied to
Through removing clay matter particle and the high alumina matter particulate material 40 that Fe handled
Wherein
Particle diameter 0-1mm 5
Particle diameter 1-3mm 11
Particle diameter 3-6mm 12
Particle diameter 6-10mm 5
Particle diameter 10-13mm 7
(2), through removing the high alumina matter particle 20 that Fe handled
Wherein
Particle diameter 0-1mm 10
Particle diameter 1-3mm 8
Particle diameter 3-6mm 2
Particle diameter 6-10mm 0
Particle diameter 10-13mm 0
(3), 180 orders-320 purpose high-alumina fly, 22 Al
2O
3〉=97%
(4), 320 purpose lapis amiridiss, 11 electric smelting Al
2O
398%
(5), particle diameter≤10 μ mSi micro mists, 2.5 SiO
2Content 〉=90%
(6), particle diameter≤10 μ mAl micro mists, 1.5 a-Al
2O
3Content 〉=97%
(7), the clad aluminum acid salt cement 3
Claims (1)
1, a kind of antiacid (alkali) acid (alkalis) etching abrasion-proof and refractory pouring material, it is characterized in that: its component and weight percent thereof are:
(1), high alumina matter, clay matter particulate material 50～60
Wherein
Particle diameter 0-1mm 5～15
Particle diameter 1-3mm 9～19
Particle diameter 3-6mm 6～26
Particle diameter 6-10mm 5～15
Particle diameter 10-13mm 3～10
(2), fine powder 28～35
(3), micro mist 4～12
(4), the clad aluminum acid salt cement 3～10
Wherein high alumina matter, clay matter particulate material were handled as aggregate and through deironing, the clad aluminum acid salt cement is as wedding agent, fine powder is the mixture of clay matter, siliceous, high alumina matter or corundum matter finely-powdered minerals, or the mixture of two kinds of finely-powdered minerals wherein, or wherein a kind of finely-powdered minerals, particle diameter is 180 orders-320 orders; Micro mist is the mixture of Si micro mist or Al micro mist or Si micro mist and Al micro mist, and particle diameter is 500 orders-800 orders, and wherein Si micro mist and Al micro mist are the mixtures of compound separately, the SiO of Si micro mist
2Content 〉=90%, the Al of Al micro mist
2O
3Content 〉=97%, Si micro mist and Al grain size of micropowder≤10 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100551377A CN101386541A (en) | 2007-09-11 | 2007-09-11 | Anti-acid(alkalis) etching abrasion-proof and refractory pouring material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100551377A CN101386541A (en) | 2007-09-11 | 2007-09-11 | Anti-acid(alkalis) etching abrasion-proof and refractory pouring material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101386541A true CN101386541A (en) | 2009-03-18 |
Family
ID=40476243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100551377A Pending CN101386541A (en) | 2007-09-11 | 2007-09-11 | Anti-acid(alkalis) etching abrasion-proof and refractory pouring material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101386541A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104557083A (en) * | 2014-12-24 | 2015-04-29 | 青岛文创科技有限公司 | Manufacturing method of clay insulating refractory brick |
| CN105481397A (en) * | 2015-12-30 | 2016-04-13 | 宜兴市集创新材料科技有限公司 | Anticorrosive castable |
| CN106220202A (en) * | 2016-08-01 | 2016-12-14 | 张婷 | A kind of Zirconium corundum refractory castable |
| CN106316419A (en) * | 2016-08-01 | 2017-01-11 | 张婷 | Refractory castable used in reducing atmosphere |
| CN111116151A (en) * | 2019-12-26 | 2020-05-08 | 中冶建筑研究总院有限公司 | High-temperature resistant consolidation material and construction method thereof |
| CN112341222A (en) * | 2020-11-11 | 2021-02-09 | 湖南湘钢瑞泰科技有限公司 | Hot metal ladle castable and preparation method thereof |
-
2007
- 2007-09-11 CN CNA2007100551377A patent/CN101386541A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104557083A (en) * | 2014-12-24 | 2015-04-29 | 青岛文创科技有限公司 | Manufacturing method of clay insulating refractory brick |
| CN105481397A (en) * | 2015-12-30 | 2016-04-13 | 宜兴市集创新材料科技有限公司 | Anticorrosive castable |
| CN106220202A (en) * | 2016-08-01 | 2016-12-14 | 张婷 | A kind of Zirconium corundum refractory castable |
| CN106316419A (en) * | 2016-08-01 | 2017-01-11 | 张婷 | Refractory castable used in reducing atmosphere |
| CN111116151A (en) * | 2019-12-26 | 2020-05-08 | 中冶建筑研究总院有限公司 | High-temperature resistant consolidation material and construction method thereof |
| CN111116151B (en) * | 2019-12-26 | 2022-03-15 | 中冶建筑研究总院有限公司 | High-temperature resistant consolidation material and construction method thereof |
| CN112341222A (en) * | 2020-11-11 | 2021-02-09 | 湖南湘钢瑞泰科技有限公司 | Hot metal ladle castable and preparation method thereof |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20090318 |