CN108218403A - Honeycomb ceramic heat accumulator and preparation method thereof - Google Patents

Honeycomb ceramic heat accumulator and preparation method thereof Download PDF

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Publication number
CN108218403A
CN108218403A CN201711316956.2A CN201711316956A CN108218403A CN 108218403 A CN108218403 A CN 108218403A CN 201711316956 A CN201711316956 A CN 201711316956A CN 108218403 A CN108218403 A CN 108218403A
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parts
powder
ceramic heat
heat accumulator
honeycomb ceramic
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彭赞
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LILING YOULI SPECIAL CERAMICS CO Ltd
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LILING YOULI SPECIAL CERAMICS CO Ltd
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Abstract

The invention discloses a kind of honeycomb ceramic heat accumulator and preparation method thereof, honeycomb ceramic heat accumulator is burnt by following components and each component mass parts：White alundum powder：55 parts~60 parts；Mullite：20 parts~25 parts；a—AL2O3Powder：6 parts~10 parts；SiO2Powder：5 parts~8 parts；Plant amylum dissolved matter：3 parts~5 parts；High temperature adhesive：3 parts~5 parts.The present invention has the advantages that high resistance to compression/flexural strength, high volume density/height hot melt, the convenient installation of high-precision compression moulding/high-precision, low manufacture cost, fractional energy savings are high, and smog discharge temperature is low, service life is long.

Description

Honeycomb ceramic heat accumulator and preparation method thereof
Technical field
The present invention relates to a kind of honeycomb ceramic heat accumulators and preparation method thereof, belong to industrial special ceramic technology field.
Background technology
At present, using legacy cellular ceramic heat storage body as underlying carrier heat accumulating type high-temperature air burning new technology (HTAC) It is widely used in the various heat accumulating type heating equipments such as Ferrous Metallurgy, petrochemical industry, precision forging, environmentally friendly filter, it can be improved Combustion efficiency, it is energy saving, and NO can be reducedXClass gas discharges, and effectively avoids environmental pollution.But for a long time, traditional bee The preparation process and properties of product of nest ceramic heat storage body itself, are not effectively improved with technological progress.It is main at present In the material prescription of stream, still with cellulose and tung oil, such substance in burning generates a large amount of phenol and is harmful to bonding agent Gas, and form a large amount of PM2.5 suspended particulate substances.In preparation process, the main system of legacy cellular ceramic heat storage body at present Standby technological process still removes iron-vacuum mud refining-extrusion forming-microwave drying-sinter molding by press filt, and preparation process is numerous Trivial and energy consumption is higher.It is single load bearing due to squeezing link particularly in extrusion forming link so that it green body and is easily deformed, Substantially there are the scale error of 3-5mm, and traditional bees of extrusion forming for each legacy cellular ceramic heat storage body squeezed out Nest ceramic heat storage body bulk density very little, Unit Weight only have 0.75-0.8g/cm3, structural strength and the soft energy of high temperature resistance lotus Difference, in the use environment of high temperature and pressure, easily whole softening is caved in, and normal service life only has 6-8 months or so.
For the problem of legacy cellular ceramic heat storage body bulk density is small, structural strength is poor, there is manufacturing enterprise's exploitation in the country Such as the patented technology of " a kind of Zirconium chromium corundum honeycomb ceramic heat accumulator (200710034984.5) ", by adding zirconium (ZrO2), chromium (Cr2O3) etc. element materials, it is intended that pass through material prescription variation enhancing legacy cellular ceramic heat storage body structure Intensity, but since basic preparation method does not change, still using the method for extrusion forming, prepared honeycomb is caused to be made pottery Porcelain heat storage still remains the problem of structural strength is not high and anti-lotus soft capability is not strong, particularly in recuperative heater, Temperature close to burner flame point is up to 1600 DEG C, even if the honeycomb ceramic heat accumulator using extrusion forming changes material prescription, according to Softening is so easy to cave in.Meanwhile there are unbalance stress to be easily deformed in the honeycomb ceramic heat accumulator forming process of extrusion forming The problem of, for this problem, there is the method for production that manufacturing enterprise proposes " self-flow casting honeycomb regenerator " in the country, and this method is led to Prefabricated regular mold is crossed, premix wet feed is added in natural sedimentation in mold is molded, although efficiently solving honeycomb ceramic heat accumulator Apparent size problem on deformation, but there are moisture content is excessive, drying time is long, needs to repeat die-filling, manual operation effect for molding of flowing automatically The problems such as rate is low.It is influenced very greatly by environmental factor variation simultaneously, different temperature, humidity are required for adjusting Formulation Ingredients at any time And reduced water content, total preparation cost are excessively high.
Invention content
The technical problems to be solved by the invention are the defects of overcoming the prior art, provide a kind of honeycomb ceramic heat accumulator, It has high resistance to compression/flexural strength, high volume density/height hot melt, the convenient installation of high-precision compression moulding/high-precision, low manufacture The advantages of cost, high fractional energy savings, and smog discharge temperature is low, service life is long.
In order to solve the above technical problems, the technical scheme is that：A kind of honeycomb ceramic heat accumulator, it is by with the following group Divide and each component mass parts are burnt into：
White alundum powder：55 parts~60 parts；
Mullite：20 parts~25 parts；
a—AL2O3Powder：6 parts~10 parts；
SiO2Powder：5 parts~8 parts；
Plant amylum dissolved matter：3 parts~5 parts；
High temperature adhesive：3 parts~5 parts.
Further, it is as follows to fire the mass percent of each chemical composition and each chemical composition in the later finished product of completion：
AL2O3：80%~85%；
SiO2：5%~10%；
MgO：3%~5%；
CaO：1%~2%；
Remaining is impurity, amounts to 100%.
Further, Fe2O3, Na2O and K are contained in the impurity2O。
Further, the white alundum powder be fused white corundum grounds travel, AL2O3Content >=99.9wt%, grain size of micropowder are 24-80 mesh, the material mainly improve the refractoriness of prepared heat storage and resistance to temperature.
Further, the mullite be electrofused mullite grounds travel, AL203Content >=85wt%, grain size of micropowder are 80-120 mesh, the material mainly improve the thermal shock resistance of prepared heat storage.
Further, a-AL2O3 powder be calcined alumina micro mist, AL2O3Content >=99wt%, grain size of micropowder are 120-300 mesh, the material mainly improve the molecule combination degree of prepared heat storage.
Further, the SiO2Powder be high purity silicon micro mist, SiO2Content >=99.999%, grain size are 200-300 mesh, The material is mainly the structural strength and heat conduction rate of heat storage prepared by raising so that prepared heat storage has good Heat transfer property.
Further, the plant amylum dissolved matter is biomass plant granule starch material aqueous solvent, and the material is main It is the bondability of heat storage premix material prepared by raising, ensures that it will not cracking in drying, sintering process, lost in burning Other pernicious gases will not be generated in journey, mainly generate innoxious CO during completely burned at high operating temperatures2And H2O。
Further, the high temperature adhesive is phosphate inorganic object bonding agent, which is mainly accumulation of heat prepared by raising Body premixes the bondability of material, and forms intermolecular bulk at high operating temperatures and make institutional framework up.
Further, the white alundum powder be fused white corundum grounds travel, AL2O3Content >=99.9wt%, grain size of micropowder are 24-80 mesh；The mullite be electrofused mullite grounds travel, AL203Content >=85wt%, grain size of micropowder are 80-120 Mesh；A-the AL2O3 powder be calcined alumina micro mist, AL2O3Content >=99wt%, grain size of micropowder are 120-300 mesh；Institute State SiO2Powder be high purity silicon micro mist, SiO2Content >=99.999%, grain size are 200-300 mesh；The plant amylum is molten Solution object is biomass plant granule starch material aqueous solvent；White alundum powder, mullite, a-AL2O3Powder, SiO2Powder and plant amylum AL in total material that dissolved matter is made into2O3Content >=80wt%, bulk density ratio is 2.6-2.8g/cm before burning3。
The present invention also provides a kind of preparation method of honeycomb ceramic heat accumulator, the step of method contains, is as follows：
By the white alundum powder, mullite and a-AL of each mass parts2O3Powder carries out premix stirring 20-25 minutes, then adds in The SiO of corrresponding quality part2Powder continues stirring 10-15 minutes, stirs material to enhance the mobility of dry mash, Then the plant amylum dissolved matter of corrresponding quality part and the high temperature adhesive of corrresponding quality part, then 10-15 points of row stirring are added in Then clock reuses two pairs of rollers roll off equipment and carries out mixed grind, aging after mixed grind, then will be aging after material be put into mold and work as In, the compression moulding under the conditions of 90~120Mpa；Green body after molding is dried in the environment of being 120 DEG C~150 DEG C in temperature, then It is burnt into the environment of being 1550 DEG C~1620 DEG C in temperature, obtains finished product.
Further, the machining tolerance of mold is within ± 0.1 ㎜, compressive resistance >=200Mpa of mold, and mold is can weigh Again using high intensity molding, mechanical pressing.For the mold in process of production without dismounting, the processing speed of unit product is ＜ 10S/, unit mold can continuous production, yield peak value >=9000/D, and legacy cellular ceramic heat storage body extrusion process unit Mold peak value≤3000/D, mechanical pressing technology and pattern assembly current extrusion moulding process tooling efficiency improve 3 times.
Further, firing process is burnt into for continous way, is burnt into later product：Bulk density ratio is 2.4-2.6g/cm3, Bulk density ratio is 1.4-1.5g/cm3, compression strength is 30-40Mpa.
After employing above-mentioned technical proposal, the honeycomb ceramic heat accumulator prepared by the technology of the present invention be provided simultaneously with high resistance to compression/ Flexural strength, high volume density/height hot melt, the convenient installation of high-precision compression moulding/high-precision, low manufacture cost, fractional energy savings are high The advantages of, the characteristics of smog discharge temperature is low, service life is long, honeycomb ceramic heat accumulator is prepared simultaneously by above-mentioned steps Have three high-precision, high intensity, high hot melt significant properties：High-precision be embodied in its longitudinally, laterally, the essence in vertical three directions Control errors are spent within ± 0.2-0.5 ㎜, situations such as any direction is without linear deformation, male and fomale(M＆F), and legacy cellular ceramics store Hot body is ± 3-5 ㎜；High intensity is embodied in its compression strength as 30-40Mpa, and legacy cellular ceramic heat storage body for 15- 25Mpa improves 2 times or more；Bulk density ratio is 1.4-1.5g/cm after its firing now of high hot melt3, and traditional bee Nest ceramic heat storage body is 0.75-0.9g/cm3, total volume unit weight improves 45%, heats corresponding improve.
Specific embodiment
In order that the present invention can be more clearly and readily understood, below according to specific embodiment, the present invention is made into One step is described in detail.
Embodiment one
A kind of honeycomb ceramic heat accumulator, it is burnt by following components and each component mass parts：
White alundum powder：55 parts；
Mullite：20 parts；
a—AL2O3Powder：9 parts；
SiO2Powder：8 parts；SiO2Powder is as enhancing mobility solvent；
Plant amylum dissolved matter：4 parts；
High temperature adhesive：4 parts.
It is as follows to fire the mass percent of each chemical composition and each chemical composition in the later finished product of completion：
AL2O3：80.4%；
SiO2：10%；
MgO：4.5%；
CaO：2%；
Remaining is impurity, amounts to 100%.
Contain Fe in the impurity2O3、Na2O and K2O。
The high temperature adhesive is phosphate inorganic object bonding agent.
The white alundum powder be fused white corundum grounds travel, AL2O3Content >=99.9wt%, grain size of micropowder are 24-80 Mesh；The mullite be electrofused mullite grounds travel, AL203Content >=85wt%, grain size of micropowder are 80-120 mesh；It is described a—AL2O3 powder be calcined alumina micro mist, AL2O3Content >=99wt%, grain size of micropowder are 120-300 mesh；The SiO2Powder For high purity silicon micro mist, SiO2Content >=99.999%, grain size are 200-300 mesh；The plant amylum dissolved matter is made a living Substance plant granule starch material aqueous solvent；White alundum powder, mullite, a-AL2O3Powder, SiO2Powder and plant amylum dissolved matter are matched Into total material in AL2O3Content >=80wt%, bulk density ratio is 2.6-2.8g/cm before burning3。
The step of preparation method of the honeycomb ceramic heat accumulator, method contains, is as follows：
By the white alundum powder, mullite and a-AL of each mass parts2O3Powder carries out premix stirring 20 minutes, then adds in corresponding The SiO of mass parts2Powder continues stirring 10 minutes, stirs material, then add in enhance the mobility of dry mash The plant amylum dissolved matter of corrresponding quality part and the high temperature adhesive of corrresponding quality part, then row stir 10 minutes, then reuse Two pairs of rollers roll off equipment carries out mixed grind, aging after mixed grind, then will be aging after material be put into and accomplished fluently the mold of butter and work as In be pressed, briquetting pressure 90Mpa, static pressure 30s, molding test block using 100*100*100mm standard cellulars it is external Shape；Green body after molding is packed into continous way drying chamber, is dried within 48 hours in the environment of being 120 DEG C~150 DEG C in temperature, ejection Moisture control is below 2.5%；It is burnt into the environment of being again 1550 DEG C in temperature, obtains finished product；Wherein, plant amylum dissolved matter A concentration of 15%, a concentration of the 85% of high temperature adhesive, high temperature adhesive is phosphate dihydrogen aluminum solution.
Wherein, stoving process is continuous type drying, by the molding heat storage of this preparation method, can directly utilize waste heat It is dried, moisture content≤2.5% after drying has preferable mechanical stress intensity, without passing through the secondary sizing of microwave Drying, effectively reduces energy consumption,
It during firing, is fired using continuous tunnel kiln, is first heated to 500 DEG C with the heating rate of 3-4 DEG C/min, Again with 4-6 DEG C of heating rate to 1200 DEG C, then with the heating rate of 150 DEG C/h to 1550 DEG C, and in 1550 DEG C of high temperature item 3 hours are kept the temperature under part, then 900 DEG C are cooled to the rate of 200 DEG C/h, rear slow cooling is until kiln discharge natural coolings.After firing Obtained test block shrinkage ratio is 0.5% hereinafter, length -0.5 ㎜.
The machining tolerance of mold is within ± 0.1 ㎜, compressive resistance >=200Mpa of mold.
It is burnt into later product：Bulk density ratio is 2.4-2.6g/cm3, bulk density ratio is 1.4g/cm3, compression strength For 30-40Mpa.
Embodiment two
A kind of honeycomb ceramic heat accumulator, it is burnt by following components and each component mass parts：
White alundum powder：60 parts；
Mullite：20 parts；
a—AL2O3Powder：9 parts；
SiO2Powder：5 parts；
Plant amylum dissolved matter：3 parts；
High temperature adhesive：3 parts.
It is as follows to fire the mass percent of each chemical composition and each chemical composition in the later finished product of completion：
AL2O3：85%；
SiO2：6.3%；
MgO：3%；
CaO：1%；
Remaining is impurity, amounts to 100%.
Contain Fe in the impurity2O3、Na2O and K2O。
The high temperature adhesive is phosphate inorganic object bonding agent.
The white alundum powder be fused white corundum grounds travel, AL2O3Content >=99.9wt%, grain size of micropowder are 24-80 Mesh；The mullite be electrofused mullite grounds travel, AL203Content >=85wt%, grain size of micropowder are 80-120 mesh；It is described a—AL2O3 powder be calcined alumina micro mist, AL2O3Content >=99wt%, grain size of micropowder are 120-300 mesh；The SiO2Powder For high purity silicon micro mist, SiO2Content >=99.999%, grain size are 200-300 mesh；The plant amylum dissolved matter is made a living Substance plant granule starch material aqueous solvent；White alundum powder, mullite, a-AL2O3Powder, SiO2Powder and plant amylum dissolved matter are matched Into total material in AL2O3Content >=80wt%, bulk density ratio is 2.6-2.8g/cm before burning3。
The step of preparation method of the honeycomb ceramic heat accumulator, method contains, is as follows：
By the white alundum powder, mullite and a-AL of each mass parts2O3Powder carries out premix stirring 25 minutes, then adds in corresponding The SiO of mass parts2Powder continues stirring 15 minutes, stirs material, then add in enhance the mobility of dry mash The plant amylum dissolved matter of corrresponding quality part and the high temperature adhesive of corrresponding quality part, then row stir 15 minutes, then reuse Two pairs of rollers roll off equipment carries out mixed grind, aging after mixed grind, then will be aging after material be put into and accomplished fluently the mold of butter and work as In be pressed, briquetting pressure 120Mpa, static pressure 30s, molding test block using 100*100*100mm standard cellulars it is external Shape；Green body after molding is packed into continous way drying chamber, is dried within 48 hours in the environment of being 120 DEG C~150 DEG C in temperature, ejection Moisture control is below 2.5%；It is burnt into the environment of being again 1620 DEG C in temperature, obtains finished product；Wherein, plant amylum dissolved matter A concentration of 25%, a concentration of the 65% of high temperature adhesive, high temperature adhesive is phosphate dihydrogen aluminum solution.
It during firing, is fired using continuous tunnel kiln, is first heated to 500 DEG C with the heating rate of 3-4 DEG C/min, Again with 4-6 DEG C of heating rate to 1200 DEG C, then with the heating rate of 150 DEG C/h to 1620 DEG C, and in 1620 DEG C of high temperature item 3 hours are kept the temperature under part, then 900 DEG C are cooled to the rate of 200 DEG C/h, rear slow cooling is until kiln discharge natural coolings.After firing Obtained test block is without dimensional contraction.
The machining tolerance of mold is within ± 0.1 ㎜, compressive resistance >=200Mpa of mold.
It is burnt into later product：Bulk density ratio is 2.4-2.6g/cm3, bulk density ratio is 1.4-1.5g/cm3, resist Compressive Strength is 30-40Mpa.
Embodiment three
A kind of honeycomb ceramic heat accumulator, it is burnt by following components and each component mass parts：
White alundum powder：55 parts；
Mullite：20 parts；
a—AL2O3Powder：7 parts；
SiO2Powder：8 parts；
Plant amylum dissolved matter：5 parts；
High temperature adhesive：5 parts.
It is as follows to fire the mass percent of each chemical composition and each chemical composition in the later finished product of completion：
AL2O3：85%；
SiO2：7%；
MgO：3%；
CaO：2%；
Remaining is impurity, amounts to 100%.
Contain Fe in the impurity2O3、Na2O and K2O。
The high temperature adhesive is phosphate inorganic object bonding agent.
The white alundum powder be fused white corundum grounds travel, AL2O3Content >=99.9wt%, grain size of micropowder are 24-80 Mesh；The mullite be electrofused mullite grounds travel, AL203Content >=85wt%, grain size of micropowder are 80-120 mesh；It is described a—AL2O3 powder be calcined alumina micro mist, AL2O3Content >=99wt%, grain size of micropowder are 120-300 mesh；The SiO2Powder For high purity silicon micro mist, SiO2Content >=99.999%, grain size are 200-300 mesh；The plant amylum dissolved matter is made a living Substance plant granule starch material aqueous solvent；White alundum powder, mullite, a-AL2O3Powder, SiO2Powder and plant amylum dissolved matter are matched Into total material in AL2O3Content >=80wt%, bulk density ratio is 2.6-2.8g/cm before burning3。
The step of preparation method of the honeycomb ceramic heat accumulator, method contains, is as follows：
By the white alundum powder, mullite and a-AL of each mass parts2O3Powder carries out premix stirring 22 minutes, then adds in corresponding The SiO of mass parts2Powder continues stirring 13 minutes, stirs material, then add in enhance the mobility of dry mash The plant amylum dissolved matter of corrresponding quality part and the high temperature adhesive of corrresponding quality part, then row stir 13 minutes, then reuse Two pairs of rollers roll off equipment carries out mixed grind, aging after mixed grind, then will be aging after material be put into and accomplished fluently the mold of butter and work as In be pressed, briquetting pressure 100Mpa, static pressure 30s, molding test block using 100*100*100mm standard cellulars it is external Shape；Green body after molding is packed into continous way drying chamber, is dried within 48 hours in the environment of being 120 DEG C~150 DEG C in temperature, ejection Moisture control is below 2.5%；It is burnt into the environment of being again 1600 DEG C in temperature, obtains finished product；Wherein, plant amylum dissolved matter A concentration of 20%, a concentration of the 70% of high temperature adhesive, high temperature adhesive is phosphate dihydrogen aluminum solution.
It during firing, is fired using continuous tunnel kiln, is first heated to 500 DEG C with the heating rate of 3-4 DEG C/min, Again with 4-6 DEG C of heating rate to 1200 DEG C, then with the heating rate of 150 DEG C/h to 1600 DEG C, and in 1600 DEG C of high temperature item 3 hours are kept the temperature under part, then 900 DEG C are cooled to the rate of 200 DEG C/h, rear slow cooling is until kiln discharge natural coolings.After firing Obtained test block shrinkage ratio is 0.2% hereinafter, length -0.1 ㎜.
The machining tolerance of mold is within ± 0.1 ㎜, compressive resistance >=200Mpa of mold.
It is burnt into later product：Bulk density ratio is 2.4-2.6g/cm3, bulk density ratio is 1.4-1.5g/cm3, resist Compressive Strength is 30-40Mpa.
Three above embodiment prepare honeycomb ceramic heat accumulator all technical be：
Title/serial number Embodiment one Embodiment two Embodiment three
AL2O3(content) 80.4% 85 85%
SiO2(content) 10% 6.3% 7%
Refractoriness (DEG C) 1750℃ 1800℃ 1850℃
Temperature in use (DEG C) 1500℃ 1550℃ 1600℃
Thermal capacity (20 1 1000 DEG C)/J/KgK 2200—2275 2400—2475 2500—2575
Antidetonation thermal stability (850 DEG C of water coolings) 20 20 18
Real density (g/cm3) 2.4 2.5 2.6
Bulk density (g/cm3) 1.4 1.5 1.5
From data shown by upper table, the honeycomb ceramic heat accumulator prepared by the technology of the present invention is provided simultaneously with high resistance to compression/anti-folding Intensity, high volume density/height hot melt, the convenient installation of high-precision compression moulding/high-precision, low manufacture cost, fractional energy savings are high, flue gas The characteristics of exhaust temperature is low, service life is long.
What three kinds of different embodiments prepared belongs to high-performance honeycomb ceramic heat accumulator, but the difference is for preparing Compression moulding pressure changes with the variation of ratio, type that material particles match in journey.
The honeycomb ceramic heat accumulator that comparative examples 1-3 methods are prepared, its comprehensive data comparison, embodiment three have more There is technical advantage, be preferred embodiment.
Particular embodiments described above has carried out the purpose of the present invention, technical solution and advantageous effect further in detail It describes in detail bright, it should be understood that the above is only a specific embodiment of the present invention, is not intended to restrict the invention, it is all Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the guarantor of the present invention Within the scope of shield.

Claims (10)

1. a kind of honeycomb ceramic heat accumulator, it is characterised in that it is burnt by following components and each component mass parts：
White alundum powder：55 parts~60 parts；
Mullite：20 parts~25 parts；
a—AL2O3Powder：6 parts~10 parts；
SiO2Powder：5 parts~8 parts；
Plant amylum dissolved matter：3 parts~5 parts；
High temperature adhesive：3 parts~5 parts.
2. honeycomb ceramic heat accumulator according to claim 1, it is characterised in that：It fires and completes each chemistry in later finished product The mass percent of ingredient and each chemical composition is as follows：
AL2O3：80%~85%；
SiO2：5%~10%；
MgO：3%~5%；
CaO：1%~2%；
Remaining is impurity, amounts to 100%.
3. honeycomb ceramic heat accumulator according to claim 2, it is characterised in that：Contain Fe in the impurity2O3、Na2O and K2O。
4. honeycomb ceramic heat accumulator according to claim 1, it is characterised in that：The white alundum powder is ground for fused white corundum Milling, AL2O3Content >=99.9wt%, grain size of micropowder are 24-80 mesh.
5. honeycomb ceramic heat accumulator according to claim 1, it is characterised in that：The plant amylum dissolved matter is biology Matter plant granule starch material aqueous solvent.
6. honeycomb ceramic heat accumulator according to claim 1, it is characterised in that：The high temperature adhesive is phosphate inorganic Object bonding agent.
7. honeycomb ceramic heat accumulator according to claim 1, it is characterised in that：The white alundum powder is ground for fused white corundum Milling, AL2O3Content >=99.9wt%, grain size of micropowder are 24-80 mesh；The mullite is electrofused mullite grounds travel, Its AL203Content >=85wt%, grain size of micropowder are 80-120 mesh；A-the AL2O3 powder be calcined alumina micro mist, AL2O3 Content >=99wt%, grain size of micropowder are 120-300 mesh；The SiO2Powder be high purity silicon micro mist, SiO2Content >= 99.999%, grain size is 200-300 mesh；The plant amylum dissolved matter is biomass plant granule starch material aqueous solvent； White alundum powder, mullite, a-AL2O3Powder, SiO2AL in total material that powder and plant amylum dissolved matter are made into2O3Content >= 80wt%, bulk density ratio is 2.6-2.8g/cm before burning3。
A kind of 8. preparation method of honeycomb ceramic heat accumulator as described in any one of claim 1 to 7, it is characterised in that method Containing the step of it is as follows：
By the white alundum powder, mullite and a-AL of each mass parts2O3Powder carries out premix stirring 20-25 minutes, then adds in corresponding The SiO of mass parts2Powder continues stirring 10-15 minutes, stirs material, then to enhance the mobility of dry mash Add in corrresponding quality part plant amylum dissolved matter and corrresponding quality part high temperature adhesive, then row stirring 10-15 minutes, so After reuse two pairs of rollers roll off equipment and carry out mixed grind, it is aging after mixed grind, then will be aging after material be put into mold, 90 Compression moulding under the conditions of~120Mpa；Green body after molding is dried, then in the environment of being 120 DEG C~150 DEG C in temperature in temperature It is burnt into the environment of being 1550 DEG C~1620 DEG C, obtains finished product.
9. preparation method according to claim 8, it is characterised in that：The machining tolerance of mold is within ± 0.1 ㎜, mold Compressive resistance >=200Mpa.
10. preparation method according to claim 8, it is characterised in that：Firing process is burnt into for continous way, is burnt into later Product：Bulk density ratio is 2.4-2.6g/cm3, bulk density ratio is 1.4-1.5g/cm3, compression strength is 30-40Mpa.
CN201711316956.2A 2017-12-12 2017-12-12 Honeycomb ceramic heat accumulator and preparation method thereof Pending CN108218403A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113277830A (en) * 2021-05-28 2021-08-20 洛阳科泰高温科技有限公司 Non-fired energy-saving heat storage ball and preparation method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1762906A (en) * 2004-10-21 2006-04-26 宜兴市炉顶密封工程公司耐火保温厂 Corundum-mullite heat-insulating brick
CN102399082A (en) * 2010-09-19 2012-04-04 晋城市富基新材料股份有限公司 Corundum-mullite honeycomb ceramic heat accumulator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1762906A (en) * 2004-10-21 2006-04-26 宜兴市炉顶密封工程公司耐火保温厂 Corundum-mullite heat-insulating brick
CN102399082A (en) * 2010-09-19 2012-04-04 晋城市富基新材料股份有限公司 Corundum-mullite honeycomb ceramic heat accumulator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113277830A (en) * 2021-05-28 2021-08-20 洛阳科泰高温科技有限公司 Non-fired energy-saving heat storage ball and preparation method thereof

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