CN112592154A - Method for preparing heat-preservation and decoration integrated wall board by adopting porous powder - Google Patents
Method for preparing heat-preservation and decoration integrated wall board by adopting porous powder Download PDFInfo
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- CN112592154A CN112592154A CN202011555802.0A CN202011555802A CN112592154A CN 112592154 A CN112592154 A CN 112592154A CN 202011555802 A CN202011555802 A CN 202011555802A CN 112592154 A CN112592154 A CN 112592154A
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- 239000000843 powder Substances 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000005034 decoration Methods 0.000 title claims abstract description 14
- 238000004321 preservation Methods 0.000 title claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 30
- 238000005245 sintering Methods 0.000 claims abstract description 14
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 238000002156 mixing Methods 0.000 claims abstract description 5
- 239000004744 fabric Substances 0.000 claims abstract description 3
- 238000007641 inkjet printing Methods 0.000 claims abstract description 3
- 238000000465 moulding Methods 0.000 claims abstract description 3
- 239000011230 binding agent Substances 0.000 claims description 26
- 229920001732 Lignosulfonate Polymers 0.000 claims description 8
- 239000000919 ceramic Substances 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 7
- 239000000440 bentonite Substances 0.000 claims description 6
- 229910000278 bentonite Inorganic materials 0.000 claims description 6
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 6
- 239000010451 perlite Substances 0.000 claims description 6
- 235000019362 perlite Nutrition 0.000 claims description 6
- 238000007639 printing Methods 0.000 claims description 6
- 239000004117 Lignosulphonate Substances 0.000 claims description 5
- 235000019357 lignosulphonate Nutrition 0.000 claims description 5
- 239000006063 cullet Substances 0.000 claims description 4
- 239000008187 granular material Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 238000010304 firing Methods 0.000 claims description 3
- 238000005469 granulation Methods 0.000 claims description 3
- 230000003179 granulation Effects 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 2
- 239000004927 clay Substances 0.000 claims description 2
- 238000010021 flat screen printing Methods 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 239000002932 luster Substances 0.000 claims description 2
- 239000000049 pigment Substances 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims description 2
- 239000012744 reinforcing agent Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 229920002994 synthetic fiber Polymers 0.000 claims description 2
- 239000010455 vermiculite Substances 0.000 claims description 2
- 235000019354 vermiculite Nutrition 0.000 claims description 2
- 229910052902 vermiculite Inorganic materials 0.000 claims description 2
- 238000001035 drying Methods 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 3
- 238000000137 annealing Methods 0.000 abstract 1
- 238000009966 trimming Methods 0.000 abstract 1
- 238000003756 stirring Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 238000005303 weighing Methods 0.000 description 6
- 230000032683 aging Effects 0.000 description 4
- 239000004567 concrete Substances 0.000 description 4
- 238000003483 aging Methods 0.000 description 3
- 230000001186 cumulative effect Effects 0.000 description 3
- 239000011490 mineral wool Substances 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 229910052656 albite Inorganic materials 0.000 description 2
- 239000011162 core material Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
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- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B33/00—Clay-wares
- C04B33/02—Preparing or treating the raw materials individually or as batches
- C04B33/13—Compounding ingredients
- C04B33/131—Inorganic additives
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C8/00—Enamels; Glazes; Fusion seal compositions being frit compositions having non-frit additions
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- C04B33/00—Clay-wares
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- C04B33/34—Burning methods combined with glazing
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- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
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- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
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- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3409—Boron oxide, borates, boric acids, or oxide forming salts thereof, e.g. borax
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Abstract
The invention provides a method for preparing a heat-preservation and decoration integrated wall body plate by adopting porous powder, which comprises the following process steps: selecting porous powder, adjusting the proportion of the porous powder and a binding material, humidifying and mixing the materials, granulating decorative glaze materials, performing secondary cloth press molding on the mixture and the granulated glaze materials, drying a blank body, performing ink-jet printing on the surface of the blank body, sintering the blank body in a roller kiln, annealing and cooling, trimming and picking up a bag; the method can produce the product with the density of 500-700g/cm3The heat conductivity coefficient is 0.1-0.19w/(m.k), and the compressive strength is 2-3 MPa.
Description
Technical Field
The invention relates to the technical field of preparation processes of energy-saving building wall materials, in particular to a method for preparing a heat-preservation and decoration integrated wall plate by adopting porous powder.
Background
According to the calculation of the national assembly type building cumulative market space of about 2 trillion yuan in 2017 + 2020, wherein the cumulative market space of the Jingjin Ji, the Long triangle and the bead triangle which are key points and pushed into the region exceeds 8500 trillion yuan and accounts for about 40 percent of the country; the national fabricated building cumulative market space in 2017 + 2025 exceeds 6.8 trillion dollars.
Under the background, the filling part of the assembled building becomes a thermal insulation decorative wallboard and a light decorative partition board which are removed from factoriesThe most prominent bulk of outsourced materials outside of prefabricated assembled components. At present, the filling part of the used building is a thermal insulation decorative wallboard which is mainly a cement prefabricated sandwich wallboard, and the light partition wallboard mainly comprises: aerated concrete blocks, ceramsite concrete slabs, polystyrene particle added concrete slabs, gypsum composite boards and the like, according to the standards of the current industry: the main index density of the light slat for building partition wall is 600-1000 kg/cm specified in JG/T169-20053The heat conductivity coefficient is 0.2-0.58 w/(m.k); the core material of double-layered core wallboard is mostly organic foam material, and both sides concrete splint draws mutually by the crab-bolt that pierces through the heat preservation, and its disadvantage is: the organic heat-insulating material has poor durability, the clamping plate and the organic heat-insulating layer have no adhesive force, the problems of cavities, splitting and the like already occur only by the pulling force of the anchor bolt, and meanwhile, the wall body is subjected to additional decoration treatment.
Disclosure of Invention
The invention aims to provide a method for preparing a heat-insulation and decoration integrated wall board by adopting porous powder, and aims to solve the problems that the heat insulation of a wall body is used for replacing the heat insulation of the outside of the wall body, and the heat-insulation and decoration integrated wall board is partially commercialized, so that the building assembly process is promoted; meanwhile, the glaze decorative layer of the product prepared by the method is a uniform material, and the glaze layer and the base layer are sintered into a whole, so that the defects of the existing assembled sandwich wall are overcome.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a method for preparing a heat-preservation and decoration integrated wall plate by adopting porous powder comprises the following process steps:
(1) selecting porous powder: the bulk density of the porous powder is required to be 80-150kg/cm3The barrel pressure strength of the porous powder is more than or equal to 85KPa, and the particle size is 1.400-0.090 mm;
(2) binder selection, including shaped and sintered binders: the forming binder is selected from pottery clay with high viscosity at 20-200 deg.C, including one or two of bentonite and black mud; the sintering binder is selected from inorganic raw materials which can be melted within the range of 950-1050 ℃, and comprises one or more than one of chemical synthetic materials of lead silicate, frits for ceramic glaze, boromagnesite, borocalcite and cullet powder, and also comprises a green body reinforcing agent which is lignosulphonate;
(3) mixing the binder and the porous powder according to the weight ratio of 35: 65, wherein the binder comprises a forming binder and a sintering binder, the forming binder accounts for 30-35% of the total amount of the binder, and the sintering binder accounts for 65-70% of the total amount of the binder. The porous powder can be selected from one or more, and the binder can be selected from one or more for composite use to form a matched powder;
(4) selecting a glaze layer material: the glaze layer material is selected to be capable of melting in the range of 1000-1050 ℃, has glass luster, does not influence the color development of printing pigment, and has the expansion coefficient of 50 multiplied by 10-7/℃-70×10-7Between/° c;
(5) respectively humidifying and granulating the mixed material powder in the step (3) and the glaze layer material in the step (4), wherein the granulation requirement is good in fluidity, and the specific index is that the repose angle of the granulated material is within the range of 200-;
(6) molding by adopting a semi-dry press mold: distributing the granulated glaze layer powder prepared in the step (5) and the batch powder into granules by adopting twice cloth in a die cavity and pressing, wherein the forming pressure is 15-25MPa, and the density of the formed blank is controlled at 500g/cm3-700g/cm3Within the range;
(7) carrying out decorative printing on the blank prepared in the step (6), and finishing by adopting ink jet or flat screen printing, wherein the developing temperature of the ceramic ink is required to be adapted to the melting temperature of the glaze layer, and the temperature range is 1000-1050 ℃;
(8) sintering the printed body prepared in the step (7), wherein the heating and cooling rates in the sintering process are as follows: and (3) heating: 20 ℃/min at the temperature of 20-600 ℃; at 601-1000 deg.c, 30 deg.c/min; keeping the temperature at 1001 and 1020 ℃ for 30 min; cooling: 1019-700 ℃, 40 ℃/min; 699 deg.C-400 deg.C, 15 deg.C/min; and firing at 399-30 ℃ at 25 ℃/min to obtain the heat-preservation and decoration integrated wall board.
In the scheme, the step (8) is fired by a roller kiln without a backing plate, and the temperature difference of the cross section is required to be less than or equal to 5 ℃, and the temperature difference between the upper part and the lower part of a roller way is required to be less than or equal to 8 ℃.
In the above scheme, the performance of the heat-insulating and decorative integrated wall board manufactured in the step (8) is as follows: density: 500-700g/cm3, a thermal conductivity coefficient of 0.1-0.19w/(m.k), and a compressive strength of 2-3 MPa.
In the scheme, the porous powder material is selected from one or more of expanded perlite, diatomite and expanded vermiculite.
Compared with the prior art, the invention has the advantages that: the plate prepared by the process method relieves the dilemma that the building heat-preservation A-grade fireproof material is difficult to meet the requirement caused by the fact that 75% of the building energy is saved at present. The main body is as follows: (1) after the 75% standard is adopted, for rock wool commonly used in the market at present, the thickness of an external heat preservation layer needs 10-13cm in the northern area, the risks of falling off, wall surface cracking and the like of the rock wool plate with low tensile strength are increased after the rock wool plate is finished, and the product prepared by the method does not need to be additionally subjected to heat preservation; (2) the product prepared by the method has a decorative surface, is a stable ceramic glaze surface, and solves the problem of non-durability caused by wall spraying of paint; (3) the product prepared by the method is sintered by a roller kiln without a backing plate, and the sintering temperature is lower, so that compared with foamed ceramic sintered by the backing plate, the energy is saved by more than 30%; (4) the product prepared by the method is beneficial to realizing wall body componentization and promoting the process of assembly type construction.
Detailed Description
Embodiment 1: weighing 65% of expanded perlite (granularity is 1.20 mm), 9% of bentonite, 3.5% of lignosulphonate, 8.5% of ceramic clinker powder and 14% of cullet powder, weighing 17% of water of the total amount of the powder, stirring the lignosulphonate in the water, spraying liquid mixed with the lignosulphonate onto the mixture during humidification, mixing and granulation, and ageing for later use after uniform stirring; the glaze layer material is prepared by weighing 72% of fusion cake powder, 8% of bentonite, 12% of perlite powder, 8% of albite powder and 16% of water in the total amount of the material powder, stirring and ageing. And (3) respectively distributing the aged batch materials (blank materials and glaze layer materials) into a die cavity of a press through secondary distribution, and performing press forming. Drying the pressed and molded blank until the moisture content is 1.5%, manually printing the surface of the dry blank by using a silk screen, then sintering the blank by using a roller kiln without a backing plate, and increasing the temperature and reducing the temperature rate: 20 ℃/min (2 ℃ 0-600 ℃)30 ℃/min (601 ℃ -1000 ℃),1001 ℃ and 1020 ℃ for 30min, 40 ℃/min (1019 ℃ -700 ℃), 15 ℃/min (699 ℃ -400 ℃), 25 ℃/min (399 ℃ -30 ℃). Properties of fired samples: density 546kg/cm3The compressive strength is 2.37MPa, and the thermal conductivity is 0.125 w/(m.k).
Embodiment 2: weighing 55% of expanded perlite (with the granularity of 1.20 mm), 10% of diatomite, 9% of bentonite, 3% of lignosulfonate, 8% of ceramic clinker powder and 15% of cullet powder, weighing 17% of water of the total amount of the powder, stirring the lignosulfonate in the water, spraying liquid mixed with the lignosulfonate onto the mixture during humidifying, mixing and granulating, and aging for later use after uniformly stirring; the glaze layer material is prepared by weighing 72% of fusion cake powder, 8% of bentonite, 15% of perlite powder and 5% of albite powder, adding 16% of water in the total amount of the material powder, stirring and ageing. And (3) respectively distributing the aged batch materials (blank materials and glaze layer materials) into a die cavity of a press through secondary distribution, and performing press forming. Drying the pressed and molded blank until the moisture content is 1.5%, manually printing the surface of the dry blank by using a silk screen, then sintering the blank by using a roller kiln without a backing plate, and increasing the temperature and reducing the temperature rate: 20 ℃/min (0-600 ℃ at 2 ℃), 30 ℃/min (601-1000 ℃),1001 ℃ and 1020 ℃ for 30min, 40 ℃/min (1019-700 ℃), 15 ℃/min (699-400 ℃) and 25 ℃/min (399-30 ℃). Properties of fired samples: density 561kg/cm3The compressive strength is 2.46MPa, and the thermal conductivity is 0.145 w/(m.k).
Claims (4)
1. A method for preparing a heat-preservation and decoration integrated wall plate by adopting porous powder is characterized by comprising the following process steps:
(1) selecting porous powder: the bulk density of the porous powder is required to be 80-150kg/cm3The barrel pressure strength of the porous powder is more than or equal to 85KPa, and the particle size is 1.400-0.090 mm;
(2) binder selection, including shaped and sintered binders: the forming binder is selected from pottery clay with high viscosity at 20-200 deg.C, including one or two of bentonite and black mud; the sintering binder is selected from inorganic raw materials which can be melted within the range of 950-1050 ℃, and comprises one or more than one of chemical synthetic materials of lead silicate, frits for ceramic glaze, boromagnesite, borocalcite and cullet powder, and also comprises a green body reinforcing agent which is lignosulphonate;
(3) mixing the binder and the porous powder according to the weight ratio of 35: 65, wherein the binder comprises a forming binder and a sintering binder, the forming binder accounts for 30-35% of the total amount of the binder, the sintering binder accounts for 65-70% of the total amount of the binder, one or more porous powder materials can be selected, and one or more binders can be selected for composite use to form a matched powder material;
(4) selecting a glaze layer material: the glaze layer material is selected to be capable of melting in the range of 1000-1050 ℃, has glass luster, does not influence the color development of printing pigment, and has the expansion coefficient of 50 multiplied by 10-7/℃-70×10-7Between/° c;
(5) respectively humidifying and granulating the mixed material powder in the step (3) and the glaze layer material in the step (4), wherein the granulation requirement is good in fluidity, and the specific index is that the repose angle of the granulated material is within the range of 200-;
(6) molding by adopting a semi-dry press mold: distributing the granulated glaze layer powder prepared in the step (5) and the batch powder into granules by adopting twice cloth in a die cavity and pressing, wherein the forming pressure is 15-25MPa, and the density of the formed blank is controlled at 500g/cm3-700g/cm3Within the range;
(7) carrying out decorative printing on the blank prepared in the step (6), and finishing by adopting ink jet or flat screen printing, wherein the developing temperature of the ceramic ink is required to be adapted to the melting temperature of the glaze layer, and the temperature range is 1000-1050 ℃;
(8) sintering the printed body prepared in the step (7), wherein the heating and cooling rates in the sintering process are as follows: and (3) heating: 20 ℃/min at the temperature of 20-600 ℃; at 601-1000 deg.c, 30 deg.c/min; keeping the temperature at 1001 and 1020 ℃ for 30 min; cooling: 1019-700 ℃, 40 ℃/min; 699 deg.C-400 deg.C, 15 deg.C/min; and firing at 399-30 ℃ at 25 ℃/min to obtain the heat-preservation and decoration integrated wall board.
2. The method for preparing a thermal insulation and decoration integrated wall body plate by adopting porous powder as claimed in claim 1, wherein the step (8) is carried out by firing in a roller kiln without a backing plate, and the temperature difference between the cross section and the vertical temperature difference of the roller kiln are required to be less than or equal to 5 ℃ and less than or equal to 8 ℃.
3. The method for preparing the heat-preservation and decoration integrated wall board by adopting the porous powder material as claimed in claim 1, wherein the heat-preservation and decoration integrated wall board prepared in the step (8) has the following properties: density: 500-700g/cm3The heat conductivity coefficient is 0.1-0.19w/(m.k), and the compressive strength is 2-3 MPa.
4. The method for preparing the heat-insulating and decorative integrated wall panel by using the porous powder as claimed in claim 1, wherein the porous powder is selected from one or more of expanded perlite, diatomite and expanded vermiculite.
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