CN1093384A - Heat radiation energy-saving coating - Google Patents
Heat radiation energy-saving coating Download PDFInfo
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- CN1093384A CN1093384A CN 94101675 CN94101675A CN1093384A CN 1093384 A CN1093384 A CN 1093384A CN 94101675 CN94101675 CN 94101675 CN 94101675 A CN94101675 A CN 94101675A CN 1093384 A CN1093384 A CN 1093384A
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Abstract
The present invention relates to coating composition, refer to heat radiation energy-saving coating especially.Solve high temperature is used for High-temp. kiln more than 1200 ℃ problem.It contains 30～50 parts of zircon sands, 1～3 part of niobium oxides, 10～15 parts of titanium dioxide, 3～5 parts in magnesium oxide, 27～50 parts of aluminium dihydrogen phosphates (peptization).Can be widely used in high temperature stoves such as metallurgy, chemical industry, save energy.Economic results in society are remarkable.
Description
The present invention relates to its physical properties or the effect that produced is the coating composition of feature, refers to the thermal-radiating energy-saving coatings composition of a kind of generation especially.
Save energy is the many countries in the world today, comprises the target that China is all laying siege to.China has listed long-range economic development planning in to this, in the long term, constantly implemented, wherein taking effective conservation measures for the bigger various stoves of power consumption is an importance, for example, at baking oven, baking oven etc., middle temperature occasion at 800 ℃ to 1000 ℃ adopts furnace lining coating, has reached purpose of energy saving; Below 1200 ℃, be applied to the energy-saving coatings of boiler etc., also come out; Also can be used at resistant to elevated temperatures coating more than 1200 ℃ abroad, but unresolvedly possess the technical problems such as effect that have pair heat energy that " bounce-back " arranged in research.Up to now, a kind ofly can be used for high temperature stove occasions such as smelting, chemical industry, coating that can be high temperature resistant 1200～1700 ℃ as energy-conservation direct technology measure, does not achieve a solution as yet.High-temperature resistant coating of the prior art, its technical problem underlying are will solve high temperature resistantly not destroy its physicochemical property more than 1200 ℃, as high temperature resistant softening compressive property, thermal stability etc.; Wherein must solve and have resistant to elevated temperatures good binding agent problem, this is a primary key technical problem; Select combined aspects at the material composition of coating besides, solve it and have low thermal conductivity problem, comprise that it has " bounce-back " materials with function to heat energy, to improve its heat effect etc.
By retrieval, have with the immediate pertinent literature of the present invention:
CN 1076942A C09D 1/00，
CN 1038296A C09D 5/33，
CN 86106391A C09D 5/00。
The objective of the invention is to study intensively test, above-mentioned technical problem is resolved, the heat radiation energy-saving coating and the manufacture method thereof of high temperature stoves such as a kind of smelting, chemical industry that can be used for 1200～1700 ℃ is provided through for many years.
The object of the present invention is achieved like this: heat radiation energy-saving coating, through repeatedly screening relevant composition and content, determine at last its contain composition and by weight component be: zircon sand (ZrSiO
4) 30～50 parts, 1～3 part of niobium oxides (NbO), the titanium dioxide (TiO of rutile-type
2) 10～15 parts, 3～5 parts in magnesium oxide (MgO), phosphoric acid aluminum dihydrogen 25(weight) aluminium dihydrogen phosphate aqueous solution (Al(H of %
2PO
4)
33H
2O) 27～50 parts.Select above-mentioned materials, according to test: zircon sand is high temperature resistant 2750 ℃; The molten temperature of niobium oxides is 2468 ℃; Titanium dioxide is high temperature resistant 2100 ℃, magnesium oxide is as solidifying agent, 2800 ℃ of its molten Wen Keda; Aluminium dihydrogen phosphate aqueous solution is as binding agent, and its reaction formula is Al(OH)
3+ 3H
3PO
4→ Al(H
2PO
4)
3+ 3H
2O is that it is the product (solid content 25%) that is dissolved in gained in the water that is three times in its body.It is not only a kind of good binding agent after tested, and has fabulous resistance to elevated temperatures, reaches 1350 ℃, ultimate compression strength as the soft fire point of loading and reaches 900Kg/cm
2, its technical feature such as following table after tested:
Appearance colorless is transparent or semitransparent
Solids content＞52%
pH 1.40～2.00
Crystallization begins 230～290 ℃ of temperature
Density 1.48～1.52T/m
2(20 ℃)
Viscosity 21～100 seconds (coating-4 viscosity meter 25 ℃ time)
Weathering resistance＞10 time (45 ℃～+ 45 ℃)
The manufacture method of heat radiation energy-saving coating is:
A, at first with above-mentioned each the material all carry out ultra-fine mill, its granularity is reached more than 300 orders;
B, then under 70～80 ℃ of situations of bath temperature, add above-mentioned binding agent, add above-mentioned material successively by material again, add while stirring, make it to reach and mix, about 60 minutes of churning time, rotating speed is 700～1200 rev/mins;
C, the above-mentioned mixture that stirs is entered again sand mill fine grinding 30 minutes once more at last, discharging thereafter is finished product.
The present invention selects for use aluminium dihydrogen phosphate as stick, has solved the primary key technical problem of high-temperature resistant coating, than select for use organic or inorganic materials such as Resins, epoxy, silicate as binding agent in the past, its over-all properties exceeds more than three times; Particularly we also to have selected zirconium dioxide be major ingredient, concerning high-temperature resistant coating, solved heat energy possessed the efficacy problems that " bounce-back " arranged, this is the another key technical problem that solves high-temperature resistant coating.As everyone knows, that is to say thermal radiation is accomplished that pettiness absorbs, conduction, go back, thereby improved the heat effect performance of material and make it bounce-back.The performance test of coating of the present invention is performed such, and promptly uses coating of the present invention, manufactures a special test block, inserts then in the breadboard high-temperature electric resistance furnace, and the physicals index that records this test specimen is as follows:
Volume density 2.4 T/m
3
Ultimate compression strength 1030 Kg/cm
2
Tensile strength 115 Kg/cm
2
1750～1790 ℃ of refractoriness
1100 ℃ of thermostabilitys ()/() water is greater than 5 times not cracked (maximum can reach 60 times not cracked)
Thermal conductivity 0.36+0.3 * 10
-3(1200 ℃)
Linear expansivity 6.1 * 10
-6
Above-mentioned test explanation, coating of the present invention has high heat-resistance index, and after being coated on the high-temperature furnace body internal surface, can produce good thermoradiation efficiency, can improve 3～5 times of stove neighbours according to the measuring and calculating High-temp. kiln after adopting the present invention, its application of temperature value reaches as high as 1790 ℃, and energy-conservation 6～22%.
Its social benefit is considerable especially.Only calculate by energy-conservation 5%, use the effect that can occur with Anshan iron and steel plant 11# blast furnace and calculate: blast furnace designization iron(-)coke ratio is that 11.5:1 that is 11 tons of pig iron of being consume one ton in coke.In the nearly 9,000,000 tons of coke of its yearly consumption: 5% saving amount is 150,000 tons, calculates with 400 yuan/T Zhi Jinjiao, then can save 6,000 ten thousand yuan every year.Use the coating money to estimate only to need 8,000,000 yuan in year; In addition, also can improve stove and make 3～5 times, reduce the expense of shutdown maintenance and improved effective production day, when the benefit that can infer especially.If in full Country metallurgical system, chemical system is the popularization of scale all, then can be 20 hundred million of national save energy funds every year.And manufacturer is calculated with 40% profits tax, and annual profits tax is also worked as more than ten million.
Embodiment one
Zirconium dioxide ZrO
225%
Niobium oxides NbO 3%
Titanium dioxide TiO
215%
Magnesium oxide MgO 5%
Aluminium dihydrogen phosphate (colloidal state) Al(H
2PO
4)
33H
2O 52%
Stir at normal temperatures, and in sand mill mill 30 minutes, reach complete homodisperse, thereafter spread upon Si-Mo rod heating muffle furnace inwall, changed and used luminite cement to be furnace lining in the past, very fast generation is split to produce and is split shape cracking, the phenomenon of peeling off then, use so far from April 30th, 92, still keep body of heater intact; Improve heat energy 20%, improve 5 times of furnace life.(smearing the back heats up under normal use temperature)
Embodiment two
Zircon sand ZrSiO
450%
Niobium oxides NbO 0.8%
Titanium dioxide (containing red stone type) TiO
210%
Magnesium oxide MgO 3%
Aluminium dihydrogen phosphate (colloidal state) Al(H
2PO
4)
33H
2O 36.2%
Technology is the same, makes the test block (solidifying voluntarily) of 20cm * 40cm * 3cm
Survey its physical data with example one unidimensional test block nuclear; More than two embodiment performance such as following tables:
Embodiment one is (with ZrO
2Being main) embodiment two is (with ZrSiO
4Be main)
Volume density 2.1T/m
3Volume density 2.4T/m
3
Ultimate compression strength 1080Kg/cm
2Ultimate compression strength 1080Kg/cm
2
Tensile strength 115Kg/cm
2Tensile strength 115Kg/cm
2
1750～1790 ℃ of 1750～1790 ℃ of refractoriness of refractoriness
1100 ℃ of thermostabilitys ()/1100 ℃ of () hydrothermal stabilities ()/() water
5～60 times not broken 60 times not broken
Thermal conductivity 0.36+0.3 * 10
-3Thermal conductivity 6.1 * 10
-3
(1200 ℃ of appointed conditions are surveyed)
Linear expansivity 6.1 * 10
-6Linear expansivity 6.1 * 10
-6
Conclusion: both technology indexes are close substantially, illustrate to select for use zirconium dioxide or zircon sand can obtain same technique effect in the coating composition of the present invention, but from material source and cost, adopt ZrSiO
4Be advisable.The former 5.8 ten thousand yuan (technical grades) per ton, the latter then is 6000 a yuan/Renminbi per ton, inexpensive nearly ten times.
Claims (1)
1, a kind of heat radiation energy-saving coating, it is characterized in that its contain composition and by weight component be:
30～50 parts of zircon sands
1～3 part of niobium oxides
10～15 parts of titanium dioxide
3～5 parts in magnesium oxide
27～50 parts of the aluminium dihydrogen phosphate aqueous solutions of aluminium dihydrogen phosphate 25 (weight) %.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94101675A CN1037613C (en) | 1994-02-21 | 1994-02-21 | Heat radiation energy-saving coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94101675A CN1037613C (en) | 1994-02-21 | 1994-02-21 | Heat radiation energy-saving coating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1093384A true CN1093384A (en) | 1994-10-12 |
| CN1037613C CN1037613C (en) | 1998-03-04 |
Family
ID=5030302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94101675A Expired - Fee Related CN1037613C (en) | 1994-02-21 | 1994-02-21 | Heat radiation energy-saving coating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1037613C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100519670C (en) * | 2006-09-13 | 2009-07-29 | 攀枝花钢铁(集团)公司 | Corrosion resistant nano coating, corrosion resistant steel and preparation method thereof |
| CN102532962A (en) * | 2011-12-31 | 2012-07-04 | 席君杰 | High-temperature anti-sticking material coating and manufacturing and application methods thereof |
| CN104098320A (en) * | 2014-07-19 | 2014-10-15 | 汤炼芳 | Anti-adhesion paint and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1031388A (en) * | 1987-08-20 | 1989-03-01 | 吕兆斌 | Long-life, high-temperature, energy-saving coating material of powder form |
| CN1027691C (en) * | 1990-03-24 | 1995-02-22 | 广州师范学院 | Refractory, energy saving and corrosion-resisting ceramics coating |
-
1994
- 1994-02-21 CN CN94101675A patent/CN1037613C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100519670C (en) * | 2006-09-13 | 2009-07-29 | 攀枝花钢铁(集团)公司 | Corrosion resistant nano coating, corrosion resistant steel and preparation method thereof |
| CN102532962A (en) * | 2011-12-31 | 2012-07-04 | 席君杰 | High-temperature anti-sticking material coating and manufacturing and application methods thereof |
| CN104098320A (en) * | 2014-07-19 | 2014-10-15 | 汤炼芳 | Anti-adhesion paint and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1037613C (en) | 1998-03-04 |
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