CN1200242C - High-temp. honeycomb ceramic heat storage body and its preparation method - Google Patents
High-temp. honeycomb ceramic heat storage body and its preparation method Download PDFInfo
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- CN1200242C CN1200242C CNB021477671A CN02147767A CN1200242C CN 1200242 C CN1200242 C CN 1200242C CN B021477671 A CNB021477671 A CN B021477671A CN 02147767 A CN02147767 A CN 02147767A CN 1200242 C CN1200242 C CN 1200242C
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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Abstract
The present invention relates to a high-temperature cellular ceramic heat accumulating body and a preparation technique. The heat accumulating body is formed by sintering 100 wt parts of AL2O3, 13 to 43 wt parts of MgO and ZrO2, carboxymethyl cellulose, polyvinyl alcohol, glycerine and tung oil. The present invention has the preparation process that various materials are prepared through molding, drying and ceramic sintering mixed and milled. The high-temperature cellular ceramic heat accumulating body has the advantages that the fireproof degree is more than 1709DEG C., the axial compressive strength is not less than 15MPa, the radial compressive strength is not less than 5MPa, the density of the hole wall is not less than 2.65 g/cm+[3], the volume weight is not less than 0.66 g/cm+[3], the heat conducting coefficient at the room temperature is 10.1W/(m. K), the heat conducting coefficient at the temperature of 1300 DEG C. is 5.8W/(m. K), the specific heat at the room temperature is 0.884J/(g. K), the specific heat at the temperature of 1300 DEG C. is 1.96J/(g. K), and the heat expansion coefficient is less than 62.5*10+[-7] DEG C. +[-1]. The heat accumulating body can be arbitrarily stacked and assembled when used and can be widely used for new heat accumulating combustion systems; the temperature benefit and the heat efficiency of the heat accumulating combustion systems can be obviously enhanced.
Description
Technical field
The present invention relates to a kind of high temperature modification honeycomb ceramic heat accumulator and technology of preparing thereof, belong to energy-conserving and environment-protective material field.
Background technology
Regenerative combustion technology is a kind of ancient and young energy-conserving and environment-protective technology of high temperature kiln combustion field, and the height of Regenerative Combustion System temperature benefit and thermo-efficiency directly depends on the performance of heat storage.What the heat storage before more than 100 year adopted is checker brick, and system bulk is big, and thermo-efficiency is low.The eighties in 20th century, the heat storage exploitation makes a breakthrough, and small diameter spherical or spot welding shape (cobble shape) ceramic body occurred, makes the heat storage body structure compactness, form one with burner, but the pressure drop that produces in using is big.It is little to develop the pressure-losses in recent years, and the honeycomb ceramic heat accumulator that heat exchange area is big has become a focus in heat storage research and development field.Chinese patent CN2413253, CN86210235, CNO0212090 and " structural performance of ceramic honeycomb body and the application of Regenerative Combustion System thereof " (metallurgical energy, 1999 (4)) report, the honeycomb ceramic heat accumulator of developing at present only can use being lower than under 1300 ℃ the temperature, Japan's exploitation also be no more than 1350 ℃ of (high-temperature air burning New-type boiler and specificity analysis, thermal power engineerings, 2000 (4)), but engineering often needs heat storage to work under the environment more than 1400 ℃ in using.Through update search, have not yet to see the relevant report of use temperature 〉=1400 ℃ high temperature modification heat storage technology of preparing.
Summary of the invention
The problem to be solved in the present invention provides a kind of high temperature modification honeycomb ceramic heat accumulator and preparation method thereof.This heat storage can use down at 〉=1400 ℃.
Realize that technical scheme of the present invention is: a kind of high temperature modification honeycomb ceramic heat accumulator is that to be joined by weight part be Al
2O
3100 parts, agglutinant MgO1～10 part, 1～5 part of fluidizer clay-Suzhou soil, 3～9 parts of carboxymethyl celluloses, 2～4 parts of polyvinyl alcohol, vehicle glycerine be or/and 5.4～15 parts of tung oil, strengthening phase ZrO
20.5～1 part is carried out combined grinding, the honeycomb ceramic heat accumulator that adopts ceramics processing to make.
The preparation method of this high temperature modification honeycomb ceramic heat accumulator is with raw material Al by weight
2O
3100 parts, agglutinant MgO1～10 part, 1～5 part of fluidizer clay-Suzhou soil, 3～9 parts of carboxymethyl celluloses, strengthening phase ZrO
20.5～1 part, carry out combined grinding, and then add vehicle glycerine or/and 5.4～15 parts of tung oil, 2～4 parts of polyvinyl alcohol add solid components weight summation 10～16% water, behind the extrusion moulding, drying, sintering obtains honeycomb ceramic heat accumulator.The preparation method of described high temperature modification honeycomb ceramic heat accumulator is the pug that will mix, and after the moulding of employing squeeze technology for forming, prepares high temperature modification honeycomb heat accumulation body base substrate with microwave-infrared combined drying.Base substrate adopts the traditional ceramics sintering technology to carry out sintering through after cutting shaping.Sintering range is 1450～1550 ℃, and soaking time is 0.5～1.5 hour.
High temperature modification honeycomb ceramic heat accumulator Performance Detection shows: the refractoriness of honeycomb ceramic heat accumulator of the present invention＞1790 ℃, axial compression strength 〉=15MPa, radial crushing strength 〉=5MPa, hole wall density 〉=2.65g/cm
3, unit weight 〉=0.66g/cm
3, thermal conductivity: room temperature is 10.1 W/ (mK), and 1300 ℃ is 5.8W/ (mK), specific heat: room temperature is 0.884J/ (gK), and 1300 ℃ is 1.96J/ (gK), and thermal expansivity is less than 62.5 * 10
-7℃
-1
Embodiment
Embodiment 1: 100 parts of Al by weight
2O
3, 1 part of MgO, 3 parts of Suzhou soil, 4 parts of carboxymethyl celluloses, the prescription of 0.8 part of polyvinyl alcohol mixes by various compositions.In expecting: the ball ratio is that 1: 2 ratio was put into the ball mill dry ball milling 48～72 hours.Powder behind the ball milling requires to pass through 250 mesh sieves.Getting minus mesh is that 10%～16% ratio adds water (doing wet situation on concrete air decides) in water content, adds 2.70 parts of glycerine and 2.70 parts of tung oil and stirs as fluid additive.The fluid additive for preparing is added in the solid powder, in mixer, mixed 2～3 hours, put into the thick refining of thick soil kneader 2～3 times then after, old 1 day, promptly obtain the extrusion moulding pug.
Old good pug is put into vacuum tightness can reach vacuum deairing machine more than the 0.95atm and carry out vacuum refining mud, in pug, do not have till the bubble.To refine good pug then and put into extrusion moulding machine extrusion moulding, cut the length that needs, the wet honeycomb that cuts is put into the microwave oven dryness finalization, stereotyped honeycomb is put into far infrared drying oven at 60～80 ℃ of complete dryinies, and shove charge after the cutting shaping is taked to heat up at a slow speed earlier, be rapidly heated again, and then the speed bonded temperature increasing schedule that heats up at a slow speed burns till, and 1450 ℃ of insulations 1 hour, promptly obtains needed honeycomb ceramic heat accumulator.
Embodiment 2～embodiment 5:
Above ratio is the weight quota ratio, can obtain the honeycomb ceramic heat accumulator of different performance parameter with reference to the method for embodiment 1 by above proportioning.
Claims (3)
1, a kind of high temperature modification honeycomb ceramic heat accumulator is characterized in that joining part by weight is Al
2O
3100 parts, agglutinant MgO1～10 part, 1～5 part of fluidizer clay-Suzhou soil, 3～9 parts of carboxymethyl celluloses, 2～4 parts of polyvinyl alcohol, vehicle glycerine be or/and 5.4～15 parts of tung oil, strengthening phase ZrO
20.5～1 part is carried out combined grinding, the honeycomb ceramic heat accumulator that adopts ceramics processing to make.
2, the preparation method of the described high temperature modification honeycomb ceramic heat accumulator of claim 1 is characterized in that raw material Al by weight
2O
3100 parts, agglutinant MgO1～10 part, 1～5 part of fluidizer clay-Suzhou soil, 3～9 parts of carboxymethyl celluloses, strengthening phase ZrO
20.5～1 part is carried out combined grinding, adds vehicle glycerine again or/and 5.4～15 parts of tung oil, 2～4 parts of polyvinyl alcohol add solid components weight summation 10～16% water, behind the extrusion moulding, and drying, sintering obtains honeycomb ceramic heat accumulator.
3, the preparation method of high temperature modification honeycomb ceramic heat accumulator as claimed in claim 2, it is characterized in that adopting the squeeze technology for forming moulding after, drying, in 1450～1550 ℃ of sintering, soaking time is 0.5～1.5 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021477671A CN1200242C (en) | 2002-11-29 | 2002-11-29 | High-temp. honeycomb ceramic heat storage body and its preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021477671A CN1200242C (en) | 2002-11-29 | 2002-11-29 | High-temp. honeycomb ceramic heat storage body and its preparation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1412518A CN1412518A (en) | 2003-04-23 |
| CN1200242C true CN1200242C (en) | 2005-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB021477671A Expired - Fee Related CN1200242C (en) | 2002-11-29 | 2002-11-29 | High-temp. honeycomb ceramic heat storage body and its preparation method |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1293022C (en) * | 2005-03-02 | 2007-01-03 | 中国航空工业第一集团公司北京航空材料研究院 | Preparation method of honeycomb ceramic mud blank |
| EP1961482A4 (en) * | 2005-12-16 | 2011-12-21 | Ngk Insulators Ltd | Catalyst carrier |
| EP2693153B1 (en) * | 2011-03-29 | 2019-02-20 | NGK Insulators, Ltd. | Heat exchange member and heat exchanger |
| CN102674811A (en) * | 2012-05-23 | 2012-09-19 | 天津天立源节能环保科技有限公司 | Method for preparing honeycomb ceramic heat accumulator by industrial ceramic waste |
| CN103508749A (en) * | 2012-06-18 | 2014-01-15 | 苏州忠辉蜂窝陶瓷有限公司 | Extrusion molding method for preparing silicon nitride honeycomb ceramic |
| CN102748758B (en) * | 2012-07-23 | 2015-04-29 | 山西科德技术陶瓷有限公司 | Honeycomb ceramic |
| CN102759292B (en) * | 2012-08-02 | 2014-02-19 | 朱建良 | Lessing ring-shaped ceramic heat-accumulation body and manufacturing process thereof |
| CN103508750B (en) * | 2013-06-07 | 2016-08-31 | 湖北神雾热能技术有限公司 | A kind of pollution-free, honeycomb ceramics production method of low cost |
| CN103361534A (en) * | 2013-07-15 | 2013-10-23 | 曹南萍 | Metal ceramic with phase change heat storage function and manufacturing method thereof |
| CN103525376B (en) * | 2013-09-18 | 2016-06-08 | 中国科学院过程工程研究所 | A kind of industrial afterheat recovery heat accumulating, Preparation method and use |
| CN103865497B (en) * | 2014-01-17 | 2017-04-12 | 湖北神雾热能技术有限公司 | Heat storage material of power plant air pre-heater and preparation method thereof |
| CN103912320B (en) * | 2014-03-19 | 2016-04-06 | 佛山光腾新能源股份有限公司 | External combustion high-pressure injection device in a kind of |
-
2002
- 2002-11-29 CN CNB021477671A patent/CN1200242C/en not_active Expired - Fee Related
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| CN1412518A (en) | 2003-04-23 |
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Granted publication date: 20050504 Termination date: 20111129 |