CN102976775A - Novel composite coating and preparation method thereof - Google Patents
Novel composite coating and preparation method thereof Download PDFInfo
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- CN102976775A CN102976775A CN2012104851070A CN201210485107A CN102976775A CN 102976775 A CN102976775 A CN 102976775A CN 2012104851070 A CN2012104851070 A CN 2012104851070A CN 201210485107 A CN201210485107 A CN 201210485107A CN 102976775 A CN102976775 A CN 102976775A
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Abstract
The invention relates to a novel composite coating and a preparation method thereof, belonging to the technical field of heat-preservation heat-insulation fire-resisting materials. The leading indicators of the novel composite coating are as follows: the chemical ingredients in percent by weight are as follows: 2.0-50% of SiO2, 50-98% of Al2O3, 0-20.0% of CaO, 0-20.0% of MgO, 0-2.0% of Fe2O3, 0-1.0% of K2O and 0-1.0% of Na2O. The novel composite coating and the preparation method of the novel composite coating have the advantages that the novel composite coating has strong resistance to high-temperature environment erosion, and a layer of crackless hard shell is formed in a manner that the novel composite coating is coated on the surface of a full-fiber kiln lining of a high-temperature kiln, so that the damage caused by external conditions such as erosion, heat shock and the like can be effectively resisted, and the service life of the kiln lining can be effectively prolonged due to the adoption of the coating structure.
Description
Technical field
The present invention relates to a kind of NEW TYPE OF COMPOSITE coating and preparation method thereof, belong to the heat insulating technical field of refractory materials.
Background technology
The NEW TYPE OF COMPOSITE coating is to be mainly used at present various high temperature furnaces to be lining with, especially ferrous metallurgy stove, the heavy non-ferrous metal metallurgical furnace, the chemical industry stove, and in all high temperature resistant stoves such as industrial calcining kiln, mostly use the heatproof degree high, the fibre furnace lining that thermal conductivity is low, the perhaps high temperature furnace lining of other class, although the heat insulating effect of these furnace linings is relatively good, but in abominable atmosphere, wind speed, under the effect of the slagging of retractory and thermal shock, through will crystallization after the use of certain hour, efflorescence, fall slag, thereby destroy the furnace lining one-piece construction, reduce the work-ing life of High Temperature Furnaces Heating Apparatus.
The intensity that the NEW TYPE OF COMPOSITE coating is higher is shunk littlely, and the characteristic property of crackle has not effectively prevented the infringement of these unfavorable factors.
Summary of the invention
According to the deficiencies in the prior art, the technical problem to be solved in the present invention is: a kind of NEW TYPE OF COMPOSITE coating is provided, shrinks littlely, the characteristic property of crackle has not effectively prevented the infringement of above-mentioned unfavorable factor; The preparation method is simple simultaneously.
The technical solution adopted for the present invention to solve the technical problems is: a kind of NEW TYPE OF COMPOSITE coating is provided, and the leading indicator of described NEW TYPE OF COMPOSITE coating is as follows:
Chemistry weight percentage composite: SiO
22.0 ~ 50%
Al
2O
3?50~98%
CaO?0~20.0%
MgO?0~20.0%
Fe
2O
3?0~2.0%
K
2O?0~1.0%
Na
2O?0~1.0%，
Unit weight 1500 ~ 2500Kg/m behind the Air drying
3
Compressive strength 1 ~ 26MPa
Folding strength 1 ~ 15MPa
Heater wire shrinks 0 ~ 3%
Solid content 60 ~ 95%
Cut down according to the circumstance 2 ~ 30%
Viscosity 10000 ~ 100000MPa.S
The preparation method of described NEW TYPE OF COMPOSITE coating is comprised of the raw material of following weight percentage:
Phosphate binders 10 ~ 50%
Aluminum oxide powder 20 ~ 70%
Coarse particles refractory powder 1 ~ 30%
Macrofiber filler 1 ~ 30%
Organic bond 1 ~ 10%.
Described macrofiber filler includes organic fiber and inorganic fibre, wherein inorganic fibre is rock wool fibers, mineral fibre, aluminum silicate fiber, alpha-alumina crystals fiber, soluble Magnesium Silicate q-agent and ca silicate fibre, and organic fibre is the organic fiber of hemp cut, wheat straw, sawdust and chemical fibre class.
The preparation method is conventional means in the industry, and the operations such as batching metering, stirring, processing are made.
The invention has the beneficial effects as follows:
1, the aggressiveness of high temperature resistant environment is strong, on the entire fibre lining surface of high temperature kiln, brushes this product, forming one deck does not have the duricrust of crackle, can effectively resist the destruction of the ambient conditions such as erosion, thermal shock of environment, use this coating structure, can effectively prolong furnace lining work-ing life.
2, use range is wide, by regulating key ingredient in the product, enlarges the temperature use range of coating, from 800 ℃ to 1400 ℃ High Temperature Furnaces Heating Apparatus, can use, and can also effectively prevent radiation and transmission of heat by convection, improves the heat insulating effect of furnace lining
3, the repairing of old furnace lining when High Temperature Furnaces Heating Apparatus furnace lining Local Damaged, after the furnace lining surface of damaged location can being cleared up, is used this patching coating, and both easy constructions are durable again.
Embodiment
Below in conjunction with embodiment the present invention is described further:
Embodiment 1
The NEW TYPE OF COMPOSITE coating quality forms: phosphate binders 10%, aluminum oxide powder 30%, coarse particles refractory powder 25%, macrofiber filler 25%, organic bond 10%, the unit weight 2120Kg/m behind the Air drying
3, compressive strength 8.5MPa, folding strength 6.5MPa, heater wire shrink-0.8%, and solid content 85% cuts down according to the circumstance 10%, viscosity 100000MPa.S, 1000 ℃ of thermal conductivity hot-face temperatures are 0.496W/m.k
Embodiment 2
The quality of NEW TYPE OF COMPOSITE coating forms phosphate binders 20%, aluminum oxide powder 40%, coarse particles refractory powder 20%, macrofiber filler 15%, organic bond 5%, the unit weight 2050Kg/m behind the Air drying
3, compressive strength 9.5MPa, folding strength 7.6MPa, heater wire shrink-1.8%, and solid content 78% cuts down according to the circumstance 8.5%, viscosity 90000MPa.S, 1000 ℃ of thermal conductivity hot-face temperatures are 0.515W/m.k
Embodiment 3
The quality of NEW TYPE OF COMPOSITE coating forms phosphate binders 30%, aluminum oxide powder 50%, coarse particles refractory powder 12%, macrofiber filler 5%, organic bond 3%, the unit weight 2020Kg/m behind the Air drying
3, compressive strength 7.5MPa, folding strength 5.5MPa, heater wire shrink-1.2%, and solid content 70% cuts down according to the circumstance 12%, viscosity 80000MPa.S, 1000 ℃ of thermal conductivity hot-face temperatures are 0.496W/m.k
Embodiment 4
The quality of NEW TYPE OF COMPOSITE coating forms phosphate binders 40%, aluminum oxide powder 20%, coarse particles refractory powder 15%, macrofiber filler 23%, organic bond 2%, the unit weight 1980Kg/m behind the Air drying
3, compressive strength 9.0MPa, folding strength 8.0MPa, heater wire shrink-1.5%, and solid content 65% cuts down according to the circumstance 15%, viscosity 70000MPa.S, 1000 ℃ of thermal conductivity hot-face temperatures are 0.506W/m.k.
Claims (3)
1. NEW TYPE OF COMPOSITE coating is characterized in that the leading indicator of described NEW TYPE OF COMPOSITE coating is as follows:
Chemistry weight percentage composite: SiO
22.0 ~ 50%
Al
2O
3?50~98%
CaO?0~20.0%
MgO?0~20.0%
Fe
2O
3?0~2.0%
K
2O?0~1.0%
Na
2O?0~1.0%，
Unit weight 1500 ~ 2500Kg/m behind the Air drying
3
Compressive strength 1 ~ 26MPa
Folding strength 1 ~ 15MPa
Heater wire shrinks 0 ~ 3%
Solid content 60 ~ 95%
Cut down according to the circumstance 2 ~ 30%
Viscosity 10000 ~ 100000MPa.S
2. the preparation method of NEW TYPE OF COMPOSITE coating according to claim 1 is characterized in that being comprised of the raw material of following weight percentage:
Phosphate binders 10 ~ 50%
Aluminum oxide powder 20 ~ 70%
Coarse particles refractory powder 1 ~ 30%
Macrofiber filler 1 ~ 30%
Organic bond 1 ~ 10%.
3. according to the preparation method of right 2 described NEW TYPE OF COMPOSITE coatings, it is characterized in that described macrofiber filler includes organic fiber and inorganic fibre, wherein inorganic fibre is rock wool fibers, mineral fibre, aluminum silicate fiber, alpha-alumina crystals fiber, soluble Magnesium Silicate q-agent and ca silicate fibre, and organic fibre is the organic fiber of hemp cut, wheat straw, sawdust and chemical fibre class.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104851070A CN102976775A (en) | 2012-11-23 | 2012-11-23 | Novel composite coating and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104851070A CN102976775A (en) | 2012-11-23 | 2012-11-23 | Novel composite coating and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102976775A true CN102976775A (en) | 2013-03-20 |
Family
ID=47851184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104851070A Pending CN102976775A (en) | 2012-11-23 | 2012-11-23 | Novel composite coating and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105565835A (en) * | 2015-12-25 | 2016-05-11 | 山东鲁阳节能材料股份有限公司 | Novel composite coating layer and preparation method thereof |
| CN106381508A (en) * | 2016-08-26 | 2017-02-08 | 内蒙古五二特种材料工程技术研究中心 | Rare-earth molten-salt stirring rod and manufacturing method thereof |
| US10233335B2 (en) * | 2016-08-12 | 2019-03-19 | Magneco/Metrel, Inc. | Protective coating composition for molten aluminum and alkali metal environments |
| US10590283B2 (en) | 2016-08-12 | 2020-03-17 | Magneco/Metrel, Inc. | Method of providing a protective coating composition for molten aluminum and alkali metal environments |
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|---|---|---|---|---|
| JPH03179068A (en) * | 1989-07-20 | 1991-08-05 | Shinto Paint Co Ltd | Coating composition excellent in hot-water resistance |
| RU2230712C2 (en) * | 2001-12-06 | 2004-06-20 | Южно-Российский государственный технический университет (Новочеркасский политехнический институт) | Steel lining |
| CN101024739A (en) * | 2007-03-30 | 2007-08-29 | 东南大学 | Water inorganic heat-resisting coating and solidifying method |
| CN101121831A (en) * | 2007-09-21 | 2008-02-13 | 郑州荣达工矿集团有限公司 | Magnesium-calcium-zirconium slag non-sticking spraying coating |
| CN101660869A (en) * | 2009-08-13 | 2010-03-03 | 甘肃中顺石化工程装备有限公司 | Spray repair method for lining of kiln firebrick |
| CN101723707A (en) * | 2009-11-24 | 2010-06-09 | 南京工业大学 | Preparation method of high-temperature-resistant anti-infrared thermal radiation energy-saving coating |
| CN102093064A (en) * | 2010-12-21 | 2011-06-15 | 北京联合荣大工程材料有限责任公司 | Refractory spray coating with high steel fiber content and spraying method thereof |
-
2012
- 2012-11-23 CN CN2012104851070A patent/CN102976775A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03179068A (en) * | 1989-07-20 | 1991-08-05 | Shinto Paint Co Ltd | Coating composition excellent in hot-water resistance |
| RU2230712C2 (en) * | 2001-12-06 | 2004-06-20 | Южно-Российский государственный технический университет (Новочеркасский политехнический институт) | Steel lining |
| CN101024739A (en) * | 2007-03-30 | 2007-08-29 | 东南大学 | Water inorganic heat-resisting coating and solidifying method |
| CN101121831A (en) * | 2007-09-21 | 2008-02-13 | 郑州荣达工矿集团有限公司 | Magnesium-calcium-zirconium slag non-sticking spraying coating |
| CN101660869A (en) * | 2009-08-13 | 2010-03-03 | 甘肃中顺石化工程装备有限公司 | Spray repair method for lining of kiln firebrick |
| CN101723707A (en) * | 2009-11-24 | 2010-06-09 | 南京工业大学 | Preparation method of high-temperature-resistant anti-infrared thermal radiation energy-saving coating |
| CN102093064A (en) * | 2010-12-21 | 2011-06-15 | 北京联合荣大工程材料有限责任公司 | Refractory spray coating with high steel fiber content and spraying method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105565835A (en) * | 2015-12-25 | 2016-05-11 | 山东鲁阳节能材料股份有限公司 | Novel composite coating layer and preparation method thereof |
| US10233335B2 (en) * | 2016-08-12 | 2019-03-19 | Magneco/Metrel, Inc. | Protective coating composition for molten aluminum and alkali metal environments |
| US10590283B2 (en) | 2016-08-12 | 2020-03-17 | Magneco/Metrel, Inc. | Method of providing a protective coating composition for molten aluminum and alkali metal environments |
| CN106381508A (en) * | 2016-08-26 | 2017-02-08 | 内蒙古五二特种材料工程技术研究中心 | Rare-earth molten-salt stirring rod and manufacturing method thereof |
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Application publication date: 20130320 |