CN107556038A - Preparation technology using flyash waste ceramic as the foam ceramic thermal insulation brick of raw material - Google Patents
Preparation technology using flyash waste ceramic as the foam ceramic thermal insulation brick of raw material Download PDFInfo
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- CN107556038A CN107556038A CN201710933567.8A CN201710933567A CN107556038A CN 107556038 A CN107556038 A CN 107556038A CN 201710933567 A CN201710933567 A CN 201710933567A CN 107556038 A CN107556038 A CN 107556038A
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- flyash
- waste ceramic
- ceramic
- thermal insulation
- carborundum
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- 239000000919 ceramic Substances 0.000 title claims abstract description 97
- 239000002699 waste material Substances 0.000 title claims abstract description 63
- 239000006260 foam Substances 0.000 title claims abstract description 28
- 238000009413 insulation Methods 0.000 title claims abstract description 28
- 239000011449 brick Substances 0.000 title claims abstract description 26
- 238000005516 engineering process Methods 0.000 title claims abstract description 23
- 239000010881 fly ash Substances 0.000 title claims abstract description 23
- 239000002994 raw material Substances 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 22
- 239000002689 soil Substances 0.000 claims abstract description 21
- 239000004088 foaming agent Substances 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000002956 ash Substances 0.000 claims abstract description 15
- 238000010304 firing Methods 0.000 claims abstract description 11
- 238000005245 sintering Methods 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims abstract description 9
- 238000010792 warming Methods 0.000 claims abstract description 9
- 239000002245 particle Substances 0.000 claims abstract description 7
- 238000007493 shaping process Methods 0.000 claims abstract description 7
- 239000000843 powder Substances 0.000 claims description 22
- 238000000498 ball milling Methods 0.000 claims description 18
- 239000007767 bonding agent Substances 0.000 claims description 16
- 150000001875 compounds Chemical class 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- 239000012634 fragment Substances 0.000 claims description 6
- 230000006835 compression Effects 0.000 abstract description 16
- 238000007906 compression Methods 0.000 abstract description 16
- 238000010521 absorption reaction Methods 0.000 abstract description 6
- 239000011148 porous material Substances 0.000 abstract description 6
- 238000012360 testing method Methods 0.000 description 34
- 238000005259 measurement Methods 0.000 description 11
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 239000010426 asphalt Substances 0.000 description 5
- 239000012774 insulation material Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
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- 239000000203 mixture Substances 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
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- WGACMNAUEGCUHG-VYBOCCTBSA-N (2s)-2-[[(2s)-2-[[(2s)-2-acetamidopropanoyl]amino]propanoyl]amino]-n-[(2s)-6-amino-1-[[(2s)-1-[(2s)-2-[[(2s)-1-[[(2s)-5-amino-1-[[(2s)-1-[[(2s)-1-[[(2s)-6-amino-1-[[(2s)-1-amino-3-(4-hydroxyphenyl)-1-oxopropan-2-yl]amino]-1-oxohexan-2-yl]amino]-3-hydroxy- Chemical compound CC(=O)N[C@@H](C)C(=O)N[C@@H](C)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCN=C(N)N)C(=O)N1CCC[C@H]1C(=O)N[C@@H](CO)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CCCN=C(N)N)C(=O)N[C@@H](CO)C(=O)N[C@@H](CCCCN)C(=O)N[C@H](C(N)=O)CC1=CC=C(O)C=C1 WGACMNAUEGCUHG-VYBOCCTBSA-N 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 206010019233 Headaches Diseases 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229920006328 Styrofoam Polymers 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 206010000269 abscess Diseases 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
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- 210000004556 brain Anatomy 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 108010074544 myelin peptide amide-12 Proteins 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
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- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
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- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000008261 styrofoam Substances 0.000 description 1
Classifications
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
Preparation technology using flyash waste ceramic as the foam ceramic thermal insulation brick of raw material, its technology characteristics are：1）Waste ceramic particle is processed；2）Dispensing：Flyash does ash discharge 35%~45%, waste ceramic 30%~40%, mountain skin soil 10%~15%, foaming agent carborundum 8%~12%；3）Shaping；4）Sintering：Blank material is warming up to 400~410 DEG C with 6~8 DEG C/min；900~1000 DEG C are warming up to 3~5 DEG C/min, flakes is warming up to 1150~1200 DEG C with 1~2 DEG C/min firing rate, 10~60min of keeping temperature；The present invention is by adding mountain skin soil and carborundum foaming agent；Divide three stage control programming rate and temperature control node during firing, make that foam ceramic thermal insulation brick density is low, and water absorption rate is good, apparent porosity is high, and pore opening is more uniform, and most of is closed pore, and its compression strength is up to 12 MPa.
Description
Technical field
The invention belongs to lime；Magnesia；Slag；Cement；Its composition, such as：Mortar, concrete or similar building
Material；Artificial stone；The technical field of ceramics, is specifically related to a kind of foam ceramic thermal insulation using flyash-waste ceramic as raw material
The preparation technology of brick.
Background technology
In the past 20 years, China ceramic industry entrance developing stage with rapid changepl. never-ending changes and improvements, the use of some new technologies, new equipment,
Ceramic yield is set to have growth by a relatively large margin；It is various discarded architectural pottery articles for use, daily while ceramic yield surges
The yield of the waste materials such as life ceramics, dedicated ceramic is also increasing, and the inconvertibility of ceramics can influence environmental sanitation
Development in the future；Therefore substantial amounts of shraff not only allows enterprise how to be handled and headache it, also allows the government to be
It destroys and puzzled one's brains to caused by environment；Meanwhile flyash is not sufficiently combusted during the coal burning of thermal power plant
Material, it is main to include the flying dust from chimney row's heavenwards, the fine ash discharged in deduster and the lime-ash discharged in combustion furnace；Powder
Coal ash can seriously pollute environment, and growth of life, animals and plants to people etc. causes serious harm；Therefore how by fine coal
Ash, waste ceramic are turned waste into wealth, and this is the important topic of social sustainable development.
As the design standard of building energy conservation 65% is in national promotion and implementation, demand day of the in the market to building thermal insulation material
Benefit increases；Though the organic insulation material such as the more styrofoam of application, polyurethane has small thermal conductivity factor, light weight, water suction at present
The low performance of rate, but simultaneously also relatively inflammable, it is easy to aging come off, the problems such as causing heat-insulating property to decline easy to crack；It is and inorganic outer
Mineral wool, expanded perlite, rock (ore deposit) cotton etc. are generally by the factor system such as raw material and technology maturation degree in wall insulation material
About it is difficult to effectively reduce production cost, and then is difficult to be widely applied；Therefore simultaneously popularization and application have market competition for exploitation
The novel inorganic class architecture exterior wall insulating materials of power are the important directions of current external-wall heat-insulation material research and development.
The content of the invention
The present invention provides a kind of preparation technology using flyash-waste ceramic as the foam ceramic thermal insulation brick of raw material, should be with powder
Coal ash-waste ceramic is the preparation technology of the foam ceramic thermal insulation brick of raw material by using flyash-waste ceramic as raw material, mixing mountain skin
Soil and carborundum foaming agent, mountain skin soil are used to improve the intensity of foam ceramic thermal insulation brick, reduce in sintering procedure plastic deformation and
The coefficient of expansion, carborundum are used for the gas generated in sintering, form foam, so that base is internally formed closing cavity and reaches guarantor
The effect of temperature；Divide three stage control programming rate and temperature control node during firing in addition, make foam ceramic thermal insulation brick
Density is 0.72~0.74g/cm3, and water absorption rate 42%, apparent porosity 35%, pore opening is more uniform, and most of is closed pore, its
Compression strength is up to 12 MPa.
In order to achieve the above object, a kind of system using flyash-waste ceramic as the foam ceramic thermal insulation brick of raw material of the invention
Standby technique, its step are as follows：
1）Waste ceramic particle is processed：Waste ceramic is ground into diameter 1~2cm fragments, ball milling is carried out, by waste ceramic powder after ball milling
Cross standby after 100 mesh sieves；
2）Dispensing：Waste ceramic powder, flyash, mountain skin soil powder, carborundum foaming agent and bonding agent are entered according to a certain percentage
Row ball milling is dry-mixed, is sufficiently mixed it, and then plus water carries out uniform stirring, and wherein flyash does ash discharge 35%~45%, waste ceramic
30%~40%, mountain skin soil 10%~15%, foaming agent carborundum 8%~12% and bonding agent 2%~6%；
3）Shaping：It is compressing that the compound to stir is poured into mould, hardening removes mould after being no less than 18 hours, natural
Dry 2~5 days, it is standby to obtain flakes；
4）Sintering：Flakes is placed in stove, flakes is warming up to 400~410 with 6~8 DEG C/min firing rate
℃；Then flakes is warming up to 900~1000 DEG C with 3~5 DEG C/min firing rate, again adding with 1~2 DEG C/min
Flakes is warming up to 1150~1200 DEG C by thermal velocity, 10~60min of keeping temperature, is down to room temperature naturally, kiln discharge, is produced
Product.
Further, in step 2）In, the mixed proportion of ratio of water to material is arranged to 0.8:1~1:1.
Further, the waste ceramic powder, flyash, mountain skin soil powder, carborundum foaming agent and bonding agent specifically mix
Ratio setting is：Flyash does ash discharge 40%, waste ceramic 40%, mountain skin soil 10%, foaming agent carborundum 8% and bonding agent 2%.
Further, the waste ceramic powder, flyash, mountain skin soil powder, carborundum foaming agent and bonding agent specifically mix
Ratio setting is：Flyash does ash discharge 40%, waste ceramic 30%, mountain skin soil 15%, foaming agent carborundum 10% and bonding agent 5%.
Further, the flyash does ash discharge and the ratio of waste ceramic is arranged to 1:1.
The beneficial effects of the present invention are：1st, the present invention adds foaming agent carborundum in flyash-waste ceramic mixing slurry,
The gas generated when the carborundum during firing in base sinters, foam is formed, so that base is internally formed closing cavity
Reach the effect of insulation, the intensity of product can be improved with caused silica.
2nd, the production cost that is burnt out of the present invention is low, resistance to compression and High anti bending strength, water absorption rate are low, at 1140 DEG C
Still have higher-strength, divide three stage control programming rate and temperature control node during firing in addition, 400 DEG C it
Before, it is rapidly heated, the process of compound discharge volatile matter, absorption water and the crystallization water, at 400~1000 DEG C, reduction of speed heating, makes to mix
Closing the dioxygen oxidation of material, slowly heating, temperature is reached 1150~1200 DEG C, i.e. compound reaches melting temperature, insulation 30~
60 minutes, make foam ceramic thermal insulation brick density be 0.72~0.74g/cm3, water absorption rate 42%, apparent porosity 35%, pore opening compared with
Homogeneous, most of is closed pore, and its compression strength is up to 12MPa.
3rd, the present invention consumes substantial amounts of ceramic discarded object and flyash simultaneously, has saved natural resources, has alleviated environment
Pollution, energy conservation and consumption reduction effects are notable.
4th, bonding agent and Shan Pi soil powders are added with the present invention, wherein bonding agent improves the intensity before blank sintering,
Be advantageous to improve dry body strength, and mountain skin soil powder is a kind of clay in itself, it not only plays cementation after high-temperature firing,
Strengthen product strength, and product plastic deformation is reduced 80%-90%, the coefficient of expansion reduces 85%-90%.
Brief description of the drawings
Fig. 1 is the present invention using temperature during firing of the flyash-waste ceramic as the preparation technology of the foam ceramic thermal insulation brick of raw material
Spend control figure；
Fig. 2 is the hole of product prepared by preparation technology of the present invention using flyash-waste ceramic as the foam ceramic thermal insulation brick of raw material
As figure；
Fig. 3 is another production prepared by preparation technology of the present invention using flyash-waste ceramic as the foam ceramic thermal insulation brick of raw material
The aperture aberration figure of product；
Fig. 4 is another production prepared by preparation technology of the present invention using flyash-waste ceramic as the foam ceramic thermal insulation brick of raw material
The aperture aberration figure of product.
Embodiment
Embodiment 1
A kind of preparation technology using flyash-waste ceramic as the foam ceramic thermal insulation brick of raw material of the invention, comprises the following steps：
1）Waste ceramic particle is processed：Waste ceramic is ground into diameter 1~2cm fragments, ball milling is carried out, by waste ceramic powder after ball milling
Cross standby after 100 mesh sieves.
2）Dispensing：Flyash does ash discharge 40%, and waste ceramic 40%, mountain skin soil 10%, foaming agent carborundum 8% and polyvinyl alcohol glue
Agent 2% is connect, proportionally carries out ball milling dry-mixed 20 minutes, is sufficiently mixed it, then plus water carries out uniform stirring, and ratio of water to material is
0.8:1。
3）Shaping：It is compressing that compound is poured into mould, mould is removed in hardening after 24 hours, naturally dry 24 hours,
It is standby to obtain flakes.
4）Sintering：Flakes is placed in stove, heated up 1 hour to 400 DEG C, then heats up 2.5 hours and rises to 900 DEG C, so
Heat up 2.5 hours afterwards and rise to 1150 DEG C, keeping temperature 20 minutes, be down to room temperature naturally, kiln discharge, obtain product.
Embodiment 2
A kind of preparation technology using flyash-waste ceramic as the foam ceramic thermal insulation brick of raw material of the invention, comprises the following steps：
1）Waste ceramic particle is processed：Waste ceramic is ground into diameter 1~2cm fragments, ball milling is carried out, by waste ceramic powder after ball milling
Cross standby after 100 mesh sieves.
2）Dispensing：Flyash does ash discharge 40%, and waste ceramic 30%, mountain skin soil 15%, foaming agent carborundum 10% and waterglass glue
Agent 5% is connect, proportionally carries out ball milling dry-mixed 30 minutes, is sufficiently mixed it, then plus water carries out uniform stirring, and ratio of water to material is
0.8:1。
3）Shaping：It is compressing that compound is poured into mould, mould is removed in hardening after 36 hours, naturally dry 72 hours,
It is standby to obtain flakes.
4）Sintering：Flakes is placed in stove, heated up 0.9 hour to 410 DEG C, then heat up 3.5 hours and rise to 1000
DEG C, then heat up 2 hours and rise to 1200 DEG C, keeping temperature 15 minutes, be down to room temperature naturally, kiln discharge, obtain product.
Embodiment 3
A kind of preparation technology using flyash-waste ceramic as the foam ceramic thermal insulation brick of raw material of the invention, comprises the following steps：
1）Waste ceramic particle is processed：Waste ceramic is ground into diameter 1~2cm fragments, ball milling is carried out, by waste ceramic powder after ball milling
Cross standby after 100 mesh sieves.
2）Dispensing：Flyash does ash discharge 35%, waste ceramic 35%, mountain skin soil 12%, foaming agent carborundum 12% and bonding agent 6%,
Proportionally carry out ball milling dry-mixed 30 minutes, be sufficiently mixed it, then plus water carries out uniform stirring, ratio of water to material 0.8:1.
3）Shaping：It is compressing that compound is poured into mould, mould is removed in hardening after 36 hours, naturally dry 72 hours,
It is standby to obtain flakes.
4）Sintering：Flakes is placed in stove, heated up 0.9 hour to 410 DEG C, then heat up 3.5 hours and rise to 1000
DEG C, then heat up 2 hours and rise to 1200 DEG C, keeping temperature 15 minutes, be down to room temperature naturally, kiln discharge, obtain product.
Embodiment 4
A kind of preparation technology using flyash-waste ceramic as the foam ceramic thermal insulation brick of raw material of the invention, comprises the following steps：
1）Waste ceramic particle is processed：Waste ceramic is ground into diameter 1~2cm fragments, ball milling is carried out, by waste ceramic powder after ball milling
Cross standby after 100 mesh sieves.
2）Dispensing：Flyash does ash discharge 40%, waste ceramic 40%, foaming agent carborundum 12% and bonding agent 8%, proportionally enters
Dry-mixed 30 minutes of row ball milling, is sufficiently mixed it, and then plus water carries out uniform stirring, ratio of water to material 0.8:1.
3）Shaping：It is compressing that compound is poured into mould, mould is removed in hardening after 36 hours, naturally dry 72 hours,
It is standby to obtain flakes.
4）Sintering：Flakes is placed in stove, heated up 0.9 hour to 410 DEG C, then heat up 3.5 hours and rise to 1000
DEG C, then heat up 2 hours and rise to 1200 DEG C, keeping temperature 15 minutes, be down to room temperature naturally, kiln discharge, obtain product.
The present embodiment is tried by the omnipotent sample machine foam ceramic thermal insulation brick product that to more than prepared by 4 kinds of embodiments
Sample；Measurement process is as follows：
1st, product with respect on two big face away from the mm of both sides 20 at, with straight steel ruler or steel tape measure respectively the length of product with
Width, it is accurate to l mm；Measurement result is the arithmetic mean of instantaneous value of 4 measured values；
2nd, in product two opposite side surfaces, away from the 20mm of end face and centre position vernier caliper measurement product thickness, accurately
To 0.5mm；Measurement result is the arithmetic mean of instantaneous value of 6 measured values；
3rd, two cornerwise length are measured on any big face of product with straight steel ruler, and calculates the difference of two diagonal；So
Above-mentioned measurement is repeated on another side afterwards, is accurate to 1mm.The higher value for taking two diagonal differences is measurement result；
4th, presentation quality：Losing fangle is reclined the seamed edge of product with straight steel ruler or steel tape, and measurement losing fangle is in length and width, thickness
The projection size in three directions, is accurate to 1mm；Measurement result with losing fangle in length and width, thick three direction projection sizes most
Big value represents with minimum value；
5th, compression strength measures：
5.1）Test specimen is placed in drying box, by constant-quality is dried to, then test specimen is moved to room temperature is cooled in drier；
5.2）In upper and lower two compression face of test specimen away from length and width is measured with straight steel ruler at seamed edge 10mm, two in thickness are right
The middle part in face is answered to measure the thickness of test specimen with straight steel ruler；Length and width measurement result is respectively the arithmetic average of four measured values
Value, 1mm is accurate to, thickness measurement is the arithmetic mean of instantaneous value of two measured values, is accurate to 1mm；
5.3）Foamed ceramics product is evenly coated in emulsified asphalt or molten asphalt on test specimen using painting brush or scraper before the test
On lower two compression faces, it is desirable to abscess just apply it is flat, then by the asphalt paper of the about 100mm × 100mm sizes cut out in advance
It is covered on coating, and is placed in drier, at least dries 24h；
5.4）Test specimen is placed on the bearing plate of testing machine, makes center and the test specimen center superposition of testing machine bearing plate；
5.5）Testing machine is started, when top board and test specimen are close, ball seat are adjusted, test specimen compression face is uniformly connect with bearing plate
Touch；
5.6）With (10 ± 1) mm/min speed to test specimen loading, until test specimen destroys, while recording compressed deformation values；Work as test specimen
Do not destroyed in compression 5%, then load during test specimen compression 5% is failing load；Record failing load P：Accurately
To 10N；
5.7）The compression strength of each test specimen is calculated by formula (3), is accurate to 0.01MPa：
σ=P/S
The compression strength of σ-test specimen, unit are MPa (MPa)；The failing load of P- test specimens, unit are newton (N)；S- test specimens
Compression area, unit are square millimeter (mm2), wherein the compression strength of product is the arithmetic average of four pieces of test specimen compression strength
Value, is accurate to 0.01MPa.
6th, rupture strength measures：
6.1）Test specimen is placed in drying box, by constant-quality is dried to, then test specimen is moved to room temperature is cooled in drier；
6.2) in the center in piece lengths direction, the width of test specimen upper and lower faces and the thickness of two sides are measured respectively；
Width, thickness measurement are respectively the arithmetic mean of instantaneous value of measured value twice, and width is accurate to 0.5mm, and thickness is accurate to
0.1mm；
6.3) foamed ceramics product before the test, should uniform brushing emulsified asphalt or fusing drip at the strong point and loading point
Green grass or young crops, then the asphalt paper that the width cut out in advance is 24mm is covered on coating, and is placed in drier and at least dries
24h；
6.4) spacing adjusted between two bearing roll shafts is 20mm, when being more than 70mm such as the thickness of test specimen, between two bearing roll shafts
Spacing should at least be increased to 3 times of products thickness；
6.5) test specimen is symmetrically placed on bearing roll shaft, adjusts loading speed, the decrease speed for making pressurization roll shaft is (10
±1)mm/min；
6.6) test specimen destruction is forced into, the maximal destruction load P of test specimen is recorded, is accurate to 1N；
6.7）As a result calculate and evaluate：
The rupture strength of each test specimen is calculated by formula (4), is accurate to 0.01MPa：
R=(3PL)/(2bh²)
The rupture strength of R- test specimens, unit are MPa (MP)；The failing load of P- test specimens, unit are newton (N)；L- undersetting rollers
Axis center spacing, unit are millimeter (mm)；B- specimen widths, unit are millimeter (mm)；H- specimen thickness, unit are millimeter
(mm)；The rupture strength of product is the arithmetic mean of instantaneous value of four pieces of test specimen rupture strengths, is accurate to 0.01MPa.
Four kinds of embodiment experimental products data of the above are as follows：
| Embodiment one | Embodiment two | Embodiment three | Example IV | |
| Profile | It is good | It is good | It is good | Difference |
| Density g/cm3 | 0.72 | 0.74 | 0.73 | 0.82 |
| Water absorption rate % | 42 | 41 | 39 | 34 |
| Apparent porosity % | 34 | 33 | 35 | 28 |
| Compression strength mpa | 12 | 11.2 | 11.3 | 8.4 |
Aperture aberration figure corresponding to the foam ceramic thermal insulation brick product that above example one is prepared to embodiment three respectively such as Fig. 2, Fig. 3 and
Shown in Fig. 4.
Finally illustrate, preferred embodiment above is merely illustrative of the technical solution of the present invention and unrestricted, although logical
Cross above preferred embodiment the present invention is described in detail, it is to be understood by those skilled in the art that can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (5)
1. using flyash-waste ceramic as the preparation technology of the foam ceramic thermal insulation brick of raw material, it is characterised in that its step is as follows：
1）Waste ceramic particle is processed：Waste ceramic is ground into diameter 1~2cm fragments, ball milling is carried out, by waste ceramic powder after ball milling
Cross standby after 100 mesh sieves；
2）Dispensing：Waste ceramic powder, flyash, mountain skin soil powder, carborundum foaming agent and bonding agent are entered according to a certain percentage
Row ball milling is dry-mixed, is sufficiently mixed it, and then plus water carries out uniform stirring, and wherein flyash does ash discharge 35%~45%, waste ceramic
30%~40%, mountain skin soil 10%~15%, foaming agent carborundum 8%~12% and bonding agent 2%~6%；
3）Shaping：It is compressing that the compound to stir is poured into mould, hardening removes mould after being no less than 18 hours, natural
Dry 2~5 days, it is standby to obtain flakes；
4）Sintering：Flakes is placed in stove, flakes is warming up to 400~410 with 6~8 DEG C/min firing rate
℃；Then flakes is warming up to 900~1000 DEG C with 3~5 DEG C/min firing rate, again adding with 1~2 DEG C/min
Flakes is warming up to 1150~1200 DEG C by thermal velocity, 10~60min of keeping temperature, is down to room temperature naturally, kiln discharge, is produced
Product.
2. the preparation technology according to claim 1 using flyash-waste ceramic as the foam ceramic thermal insulation brick of raw material, it is special
Sign is：In step 2）In, the mixed proportion of ratio of water to material is arranged to 0.8:1~1:1.
3. the preparation technology according to claim 1 using flyash-waste ceramic as the foam ceramic thermal insulation brick of raw material, it is special
Sign is：The waste ceramic powder, flyash, mountain skin soil powder, carborundum foaming agent and the specific mixed proportion of bonding agent are set
For：Flyash does ash discharge 40%, waste ceramic 40%, mountain skin soil 10%, foaming agent carborundum 8% and bonding agent 2%.
4. the preparation technology according to claim 1 using flyash-waste ceramic as the foam ceramic thermal insulation brick of raw material, it is special
Sign is：The waste ceramic powder, flyash, mountain skin soil powder, carborundum foaming agent and the specific mixed proportion of bonding agent are set
For：Flyash does ash discharge 40%, waste ceramic 30%, mountain skin soil 15%, foaming agent carborundum 10% and bonding agent 5%.
5. the preparation technology according to claim 1 using flyash-waste ceramic as the foam ceramic thermal insulation brick of raw material, it is special
Sign is：The flyash does ash discharge and the ratio of waste ceramic is arranged to 1:1.
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| CN111718177A (en) * | 2020-05-17 | 2020-09-29 | 陕西励峰德精密陶瓷科技有限公司 | Preparation method of ceramic rear cover 3D printing material |
| CN112408944A (en) * | 2020-12-15 | 2021-02-26 | 河南王牌陶瓷有限公司 | Environment-friendly ceramic floor tile and preparation method thereof |
| CN113638279A (en) * | 2021-07-28 | 2021-11-12 | 孙志远 | Building engineering environment-friendly water permeable brick and preparation method thereof |
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