CN115650768A - Preparation method of heat-insulating radiation material prepared from zirconia polishing powder waste - Google Patents
Preparation method of heat-insulating radiation material prepared from zirconia polishing powder waste Download PDFInfo
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Abstract
The invention provides a preparation method of a heat-insulating radiation material prepared by using zirconia polishing powder waste, which comprises the following steps: sieving the zirconia polishing powder waste, drying and mixing the sieved zirconia polishing powder waste with rare earth carbonate to obtain precursor powder; firing and insulating the precursor powder to obtain (La) with a pyrochlore structure 0.5+x Sm 0.5‑x ) 2 (Zr 0.7 Ce 0.3 ) 2 O 7 Powder, wherein x = -0.5, 0 or 0.5; dissolving a dispersing agent in water, adding the powder after fully mixing, grinding after stirring, and obtaining slurry after grinding; mixing and stirring the slurry and the adhesive solution to obtain the adhesiveThe heat-insulating radiation material. The heat-insulating radiation material prepared by using the zirconium oxide polishing powder waste organically combines the zirconium oxide polishing powder waste and the rare earth carbonate, and the prepared heat-insulating radiation material can reduce energy consumption by more than 15% when being applied to a high-temperature kiln.
Description
Technical Field
The invention belongs to the field of comprehensive utilization of waste resources, and particularly relates to a preparation method of a heat-insulating radiation material prepared from a zirconia polishing powder waste.
Background
The zirconia has the characteristics of high melting point, high hardness, corrosion resistance, wear resistance, excellent chemical stability and the like, and has wide application prospect in the fields of aerospace, metallurgy, chemical industry, electronics and the like.
At present, polishing powder is generally divided into rare earth polishing powder, zirconia polishing powder, alumina polishing powder, silica polishing powder and the like, and because different polishing powder has different polishing capacities, the rare earth polishing powder has the advantages of high polishing speed, high precision, easiness in cleaning, small pollution and the like; the hardness of the zirconia polishing powder is equivalent to that of cerium oxide, but the polishing performance is slightly poorer than that of the rare earth polishing powder; the alumina polishing powder has high hardness and good cutting force compared with zirconia, but easily scratches the surface of a polished object; the silicon oxide polishing powder has the advantages of small hardness, good dispersibility and the like, but the polishing efficiency is low.
Patent CN 105712399B invented a method for preparing zirconium dioxide polishing powder, which synthesizes a single zirconium dioxide polishing powder with controllable crystal form, and polishes glass materials to achieve ideal polishing effect; the zirconia polishing powder is also applied to polishing of materials such as aluminum alloy, stainless steel, crystal, stone and the like.
As the zirconia is a scarce resource, the recycled zirconia and the compound thereof have great value, continue to exert the value, carry out secondary development and utilization on the zirconia, and have important significance of saving resources and protecting the environment.
The patent CN 102531588B discloses a method for preparing zirconia ceramic by recycling zirconia ceramic grinding waste, wherein metal impurities such as copper, iron and the like are removed from the waste generated by zirconia ceramic grinding treatment by using acid and an oxidant, and then rare earth oxide is added to prepare a ceramic product through mixing and sintering; patent CN 108529673B invented a method for producing zirconium dioxide nanopowder by using zirconium dioxide sintering waste; patent CN 113292336A discloses a method for recycling zirconia ceramic waste, which recovers zirconia ceramic waste by a physical method and prepares a zirconia ceramic device with excellent performance after processing. The methods generally have the problems of long process flow, complex process, low recovery utilization rate and the like, and are difficult to be generally applied in industrialization.
Disclosure of Invention
In view of the above, the present invention is directed to a method for preparing a thermal insulation radiation material prepared from zirconia polishing powder waste.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a preparation method of a heat-insulating radiation material prepared by using zirconia polishing powder waste comprises the following steps:
step (1) pretreatment: sieving the zirconia polishing powder waste, drying and mixing the sieved zirconia polishing powder waste with rare earth carbonate to obtain precursor powder;
step (2) preparation of radiation powder: firing and insulating the precursor powder to obtain (La) with a pyrochlore structure 0.5+x Sm 0.5-x ) 2 (Zr 0.7 Ce 0.3 ) 2 O 7 Powder, wherein x = -0.5, 0 or 0.5;
step (3) preparation of radiation slurry: dissolving a dispersing agent in water, fully mixing, adding the powder, stirring, grinding, and grinding to obtain slurry;
step (4) preparation of radiation material: and mixing and stirring the slurry and the adhesive solution to prepare the heat-insulating radiation material prepared by using the zirconium oxide polishing powder waste.
Further, the zirconia polishing powder waste material in the step (1) contains ZrO 2 50-65%, polishing impurities 1-5%, and the balance of water; the rare earth carbonate in the step (1) is at least one of cerium carbonate, lanthanum carbonate or samarium carbonate.
Further, the temperature of the drying step in the step (1) is 180-220 ℃, and the time is 1-3 hours; the time of the mixing step in the step (1) is 0.5 to 1.5 hours.
Further, the burning temperature in the step (2) is 1450-1550 ℃; the time of the heat preservation step in the step (2) is 2-4 hours.
Further, the dispersant in the step (3) is at least one of BYK-190, RT-8040 or RT-8022; the mass ratio of the water, the dispersing agent and the powder in the step (3) is 1:0.005-0.15:1-2.
Further, the powder particle size D of the slurry in the step (3) 50 ≤1μm。
Further, the mass ratio of the slurry to the binder in the step (4) is 1 to 2; the adhesive solution in the step (4) is prepared from (La) 0.36 Ce 0.64 )PO 4 With Al (H) 2 PO 4 ) 3 Is prepared by mixing (La) 0.36 Ce 0.64 )PO 4 With Al (H) 2 PO 4 ) 3 The mass ratio of (La) is 1 0.36 Ce 0.64 )PO 4 With Al (H) 2 PO 4 ) 3 The sum of the mass of (a) is 45-60% of the mass of the binder solution.
The heat-insulating radiation material is prepared by using the zirconium oxide polishing powder waste.
The application of the heat-insulating radiation material prepared by utilizing the zirconia polishing powder waste material is the application of the heat-insulating radiation material in preparing an industrial kiln.
The doping of the A-site and B-site parts of the zirconic acid rare earth can enhance phonon scattering, the intensity of the phonon scattering determines the thermal conductivity of the material, the phonon scattering is intensified to facilitate the reduction of the thermal conductivity of the material, and the thermal insulation effect is optimal (La) 0.5 Sm 0.5 ) 2 (Zr 0.7 Ce 0.3 ) 2 O 7 The thermal conductivity is obviously lower than that of La 2 (Zr 0.7 Ce 0.3 ) 2 O 7 And Sm 2 (Zr 0.7 Ce 0.3 ) 2 O 7 However, la 2 (Zr 0.7 Ce 0.3 ) 2 O 7 And Sm 2 (Zr 0.7 Ce 0.3 ) 2 O 7 The thermal conductivity is in the range of 0.76W/(m.k) -and 1.04W/(m.k) at the working temperature of 1200 ℃, and the thermal insulation performance is also good; the A-site and B-site parts of the zirconic acid rare earth are doped with crystal lattices to generate distortion, so that the radiation performance of the material is improved, and although the three zirconic acid rare earth have high infrared emissivity at the working temperature of more than 1200 ℃, the optimal infrared emissivity is (La) 0.5 Sm 0.5 ) 2 (Zr 0.7 Ce 0.3 ) 2 O 7 (ii) a The three types of rare earth zirconic acid are pyrochlore structures, and do not have phase change between the high temperature of 1200 ℃ and the melting point; rare earth carbonate releases CO at high temperature 2 The gas is easy to prepare powder materials, and simultaneously, the reaction temperature for generating pyrochlore structures is also reduced; aluminum, iron, copper and the like contained in the polishing impurities in the waste have high radiation performance, and are subjected to atomic substitution with the zirconic acid rare earth in the high-temperature reaction process to generate lattice defects, so that the radiation performance of the powder at infrared wavelength is enhanced, and the performance of the heat-insulating radiation material of the powder is improved.
Compared with the prior art, the invention has the following advantages:
the thermal insulation radiation material prepared by using the zirconium oxide polishing powder waste organically combines the zirconium oxide polishing powder waste with the rare earth carbonate, and the prepared thermal insulation radiation material can reduce energy consumption by more than 15% when being applied to a high-temperature kiln, simultaneously promotes complete combustion of coal gas, and realizes harmless, efficient and resource utilization of the zirconium oxide polishing powder waste; the method is directly applied to the waste materials generated by polishing aluminum materials, copper materials, stainless steel, glass and the like, and polishing impurities in the waste materials react with zirconic acid rare earth to generate lattice defects and oxygen vacancies, so that the heat insulation and radiation performance of the material is improved; the zirconia polishing powder waste is recycled, so that precious zirconium resources are recycled, and the problems of environmental pollution and potential safety hazards caused by waste stockpiling are solved; the zirconium oxide polishing powder waste is used as a raw material of the heat-insulating radiation material, so that the production cost is obviously superior to that of other heat-insulating radiation materials; simple process, low production cost and easy control of industrial production.
Drawings
FIG. 1 shows a heat-insulating radiation-emitting material (La) according to example 1 of the present invention 0.5 Sm 0.5 ) 2 (Zr 0.7 Ce 0.3 ) 2 O 7 XRD pattern of (a).
Detailed Description
Unless defined otherwise, technical terms used in the following examples have the same meanings as commonly understood by one of ordinary skill in the art to which the present invention belongs. The test reagents used in the following examples, unless otherwise specified, are all conventional biochemical reagents; the experimental methods are conventional methods unless otherwise specified.
The present invention will be described in detail with reference to examples.
Example 1
A preparation method of a heat-insulating radiation material prepared by using zirconia polishing powder waste comprises the following steps:
(1) Material preparation and pretreatment: sieving the zirconia polishing powder waste to remove large particles and foreign matters, and mixing the sieved waste with lanthanum carbonate, samarium carbonate and cerium carbonate (La) 0.5 Sm 0.5 ) 2 (Zr 0.7 Ce 0.3 ) 2 O 7 Adding the powder into a drying kiln according to the stoichiometric ratio, drying the powder for 2 hours at the temperature of 200 ℃, and adding the dried powder into a mixer for mixing for 1 hour to obtain a mixed precursor;
(2) Preparing powder: keeping the temperature of the precursor at 1500 ℃ for 3h to obtain (La) with pyrochlore structure 0.5 Sm 0.5 ) 2 (Zr 0.7 Ce 0.3 ) 2 O 7 Powder;
(3) Preparing slurry: adding 100 parts of water and 0.5 part of dispersant BYK190 into a slurry mixing tank, fully stirring, adding 100 parts of powder, stirring for 0.5h to form slurry, starting a pump for communicating the slurry mixing tank with a ball mill, circularly grinding the slurry through the ball mill, and stopping grinding when the powder granularity D50 in the slurry reaches 1 mu m to obtain slurry;
(4) Preparing a heat-insulating radiation material: adding 100 parts of slurry and 100 parts of adhesive into a dispersion tank respectively, wherein the adhesive is composed of 5% by mass (La) 0.36 Ce 0.64 )PO 4 With a mass fraction of 50% of Al (H) 2 PO 4 ) 3 Mixing, stirring and dispersing the slurry and the adhesive at a high speed for 2 hours to obtain a heat-insulating radiation material;
(5) Testing the performance of the heat-insulating radiation material: an infrared emissivity tester is adopted to test the total wavelength integral emissivity of the heat-insulating radiation material, the working temperature is more than 0.94 at 25-1400 ℃, the thermal conductivity is 0.54W/(m.k) at 1200 ℃, and the energy consumption of the wall-sprayed heat-insulating radiation material is reduced by 19.8 percent compared with a high-temperature kiln which is not sprayed with the heat-insulating radiation material. Coating on refractory brick, and keeping the temperature of the coating at 1200 ℃ for 15min, no cracking and falling off after water quenching for 30 times. FIG. 1 shows a heat-insulating radiation material (La) 0.5 Sm 0.5 ) 2 (Zr 0.7 Ce 0.3 ) 2 O 7 Compared with a standard pdf card, the pyrochlore structure of the material has the advantages of narrow peak pattern, no impurity peak and high crystallinity.
Example 2
A preparation method of a heat-insulating radiation material prepared by using zirconia polishing powder waste comprises the following steps:
(1) Material preparation and pretreatment: sieving the zirconium oxide polishing powder waste to remove large particles and foreign matters, and mixing the sieved waste with samarium carbonate and cerium carbonate according to Sm 2 (Zr 0.7 Ce 0.3 ) 2 O 7 Adding the stoichiometric amount into a drying kiln, drying for 2h at 200 ℃, adding the dried powder into a mixer, and mixing for 1h to obtain a mixed precursor;
(2) Powder preparation: keeping the temperature of the precursor at 1500 ℃ for 3h to obtain Sm with a pyrochlore structure 2 (Zr 0.7 Ce 0.3 ) 2 O 7 Powder;
(3) Preparing slurry: adding 100 parts of water and 0.5 part of dispersant BYK190 into a slurry mixing tank, fully stirring, adding 100 parts of powder, stirring for 0.5h to form slurry, starting a pump for communicating the slurry mixing tank with a ball mill, circularly grinding the slurry through the ball mill, and stopping grinding when the powder granularity D50 in the slurry reaches 1 mu m to obtain slurry;
(4) Preparing a heat-insulating radiation material: adding 100 parts of slurry and 100 parts of adhesive into a dispersion tank respectively, wherein the adhesive is composed of 5% by mass (La) 0.36 Ce 0.64 )PO 4 With a mass fraction of 50% of Al (H) 2 PO 4 ) 3 Mixing, and stirring and dispersing the slurry and the adhesive at a high speed for 2 hours to obtain a heat-insulating radiation material;
(5) Testing the performance of the heat-insulating radiation material: an infrared emissivity tester is adopted to test the total wavelength integral emissivity of the heat-insulating radiation material, the working temperature is more than 0.92 at 25-1400 ℃, the thermal conductivity is 0.89W/(m.k) at 1200 ℃, and the energy consumption of the wall-sprayed heat-insulating radiation material is reduced by 17.9 percent compared with a high-temperature kiln which is not sprayed with the heat-insulating radiation material. The coating is coated on a refractory brick, the temperature of the coating is kept for 15min at 1200 ℃, and cracking and falling-off phenomena do not occur after 30 times of water quenching.
Example 3
A preparation method of a heat-insulating radiation material prepared by using zirconia polishing powder waste comprises the following steps:
(1) Material preparation and pretreatment: sieving the zirconia polishing powder waste to remove large particles and foreign matters, and mixing the sieved waste with lanthanum carbonate and cerium carbonate according to the La 2 (Zr 0.7 Ce 0.3 ) 2 O 7 Adding the stoichiometric amount into a drying kiln, drying for 2h at 200 ℃, adding the dried powder into a mixer, and mixing for 1h to obtain a mixed precursor;
(2) Preparing powder: keeping the temperature of the precursor at 1500 ℃ for 3h to obtain the La with the pyrochlore structure 2 (Zr 0.7 Ce 0.3 ) 2 O 7 Powder;
(3) Preparing slurry: adding 100 parts of water and 0.5 part of dispersant BYK190 into a size mixing tank, fully stirring, adding 100 parts of powder, stirring for 0.5h to form slurry, starting a pump communicated with the size mixing tank and a ball mill, circularly grinding the slurry through the ball mill, and grinding the powder in the slurry with the granularity D 50 Stopping grinding when the particle size reaches 1 mu m to obtain slurry;
(4) Preparing a heat-insulating radiation material: adding 100 parts of slurry and 100 parts of adhesive into a dispersion tank respectively, wherein the adhesive is composed of 5% by mass (La) 0.36 Ce 0.64 )PO 4 With a mass fraction of 50% of Al (H) 2 PO 4 ) 3 Mixing, and stirring and dispersing the slurry and the adhesive at a high speed for 2 hours to obtain a heat-insulating radiation material;
(5) And (3) testing the performance of the heat-insulating radiation material: an infrared emissivity tester is adopted to test the total wavelength integral emissivity of the heat-insulating radiation material, the working temperature is more than 0.91 at 25-1400 ℃, the thermal conductivity is 1.04W/(m.k) at 1200 ℃, and the energy consumption of the wall-sprayed heat-insulating radiation material is reduced by 16.5 percent compared with a high-temperature kiln which is not sprayed with the heat-insulating radiation material. The coating is coated on a refractory brick, the temperature of the coating is kept at 1200 ℃ for 15min, and the cracking and falling phenomena do not occur after the coating is quenched by water for 30 times.
Comparative example 1
A preparation method of a heat-insulating radiation material prepared by using zirconia polishing powder waste comprises the following steps:
(1) Material preparation and pretreatment: sieving the zirconia polishing powder waste to remove large particles and foreign matters, and mixing the sieved waste with lanthanum carbonate and cerium carbonate (La) 0.5 Sm 0.5 ) 2 (Zr 0.7 Ce 0.3 ) 2 O 7 Adding the stoichiometric amount into a drying kiln, drying for 2h at 200 ℃, adding the dried powder into a mixer, and mixing for 1h to obtain a mixed precursor;
(2) Preparing powder: keeping the temperature of the precursor at 1300 ℃ for 3h to obtain (La) 0.5 Sm 0.5 ) 2 (Zr 0.7 Ce 0.3 ) 2 O 7 Powder;
(3) Preparing slurry: adding 100 parts of water and 0.5 part of dispersant BYK190 into a slurry mixing tank, fully stirring, adding 100 parts of powder, stirring for 0.5h to form slurry, starting a pump for communicating the slurry mixing tank with a ball mill, circularly grinding the slurry through the ball mill, and stopping grinding when the powder granularity D50 in the slurry reaches 1 mu m to obtain slurry;
(4) Preparing a heat-insulating radiation material: adding 100 parts of slurry and 100 parts of adhesive into a dispersion tank respectively, wherein the adhesive is composed of 5% by mass (La) 0.36 Ce 0.64 )PO 4 With a mass fraction of 50% of Al (H) 2 PO 4 ) 3 Mixing, and stirring and dispersing the slurry and the adhesive at a high speed for 2 hours to obtain a heat-insulating radiation material;
(5) Testing the performance of the heat-insulating radiation material: an infrared emissivity tester is adopted to test the total wavelength integral emissivity of the heat-insulating radiation material, the working temperature is more than 0.88 at 25-1400 ℃, the thermal conductivity is 1.65W/(m.k) at 1200 ℃, and the energy consumption of the wall-sprayed heat-insulating radiation material is reduced by 12.3 percent compared with a high-temperature kiln which is not sprayed with the heat-insulating radiation material. The coating is coated on a refractory brick, the temperature of the coating is kept at 1200 ℃ for 15min, and the cracking and falling phenomena do not occur after the coating is quenched by water for 30 times.
Comparative example 2
A preparation method of a heat-insulating radiation material prepared by using zirconia polishing powder waste comprises the following steps:
(1) Material preparation and pretreatment: sieving the zirconia polishing powder waste to remove large particles and foreign matters, adding the sieved waste into a drying kiln, drying for 2 hours at 200 ℃, adding the dried powder into a mixer, and mixing for 1 hour to obtain a mixed precursor;
(2) Preparing powder: keeping the temperature of the precursor at 1500 ℃ for 3h to obtain ZrO 2 Powder;
(3) Preparing slurry: adding 100 parts of water and 0.5 part of dispersant BYK190 into a slurry mixing tank, fully stirring, adding 100 parts of powder, stirring for 0.5h to form slurry, starting a pump for communicating the slurry mixing tank with a ball mill, circularly grinding the slurry through the ball mill, and stopping grinding when the powder granularity D50 in the slurry reaches 1 mu m to obtain slurry;
(4) Preparing a heat-insulating radiation material: adding 100 parts of slurry and 100 parts of adhesive into a dispersion tank respectively, wherein the adhesive is composed of 5% by mass (La) 0.36 Ce 0.64 )PO 4 With a mass fraction of 50% of Al (H) 2 PO 4 ) 3 Mixing, and stirring and dispersing the slurry and the adhesive at a high speed for 2 hours to obtain a heat-insulating radiation material;
(5) And (3) testing the performance of the heat-insulating radiation material: an infrared emissivity tester is adopted to test the total wavelength integral emissivity of the heat-insulating radiation material, the working temperature is more than 0.80 at 25-1400 ℃, the thermal conductivity is 2.89W/(m.k) at 1200 ℃, and the energy consumption of the wall-sprayed heat-insulating radiation material is reduced by 6.8 percent compared with a high-temperature kiln which is not sprayed with the heat-insulating radiation material. The coating is coated on a refractory brick, the temperature of the coating is kept for 15min at 1200 ℃, and cracking and falling-off phenomena do not occur after 30 times of water quenching.
Comparative example 3
A preparation method of a heat-insulating radiation material prepared by using zirconia polishing powder waste comprises the following steps:
(1) Material preparation and pretreatment: sieving the zirconia polishing powder waste to remove large particles and foreign matters, and mixing the sieved waste with lanthanum carbonate, samarium carbonate and cerium carbonate (La) 0.5 Sm 0.5 ) 2 (Zr 0.7 Ce 0.3 ) 2 O 7 Chemical meterAdding the powder into a drying kiln according to the amount ratio, drying for 2h at 200 ℃, adding the dried powder into a mixer, and mixing for 1h to obtain a mixed precursor;
(2) Preparing powder: keeping the temperature of the precursor at 1500 ℃ for 3h to obtain (La) with pyrochlore structure 0.5 Sm 0.5 ) 2 (Zr 0.7 Ce 0.3 ) 2 O 7 Powder;
(3) Preparing slurry: adding 100 parts of water and 0.5 part of dispersant BYK190 into a slurry mixing tank, fully stirring, adding 100 parts of powder, stirring for 0.5h to form slurry, starting a pump for communicating the slurry mixing tank with a ball mill, circularly grinding the slurry through the ball mill, and stopping grinding when the powder granularity D50 in the slurry reaches 1 mu m to obtain slurry;
(4) Preparing a heat-insulating radiation material: respectively adding 100 parts of slurry and 100 parts of adhesive into a dispersion tank, wherein the adhesive is silica sol with the mass fraction of 30%, and stirring and dispersing the slurry and the adhesive at a high speed for 2 hours to obtain a heat-insulating radiation material;
(5) Testing the performance of the heat-insulating radiation material: an infrared emissivity tester is adopted to test the total wavelength integral emissivity of the heat-insulating radiation material, the working temperature is more than 0.88 at 25-1400 ℃, the thermal conductivity is 0.64W/(m.k) at 1200 ℃, and the energy consumption of the wall-sprayed heat-insulating radiation material is reduced by 14.7 percent compared with a high-temperature kiln which is not sprayed with the heat-insulating radiation material. The coating is coated on a refractory brick, the temperature of the coating is kept at 1200 ℃ for 15min, and the cracking and falling phenomena occur after 24 times of water quenching.
Comparative example 4
A preparation method of a heat-insulating radiation material prepared by using zirconia polishing powder waste comprises the following steps:
(1) Material preparation and pretreatment: sieving the zirconia polishing powder waste to remove large particles and foreign matters, and mixing the sieved waste with lanthanum carbonate, samarium carbonate and cerium carbonate (La) 0.5 Sm 0.5 ) 2 (Zr 0.7 Ce 0.3 ) 2 O 7 Adding the stoichiometric amount into a drying kiln, drying for 2h at 200 ℃, adding the dried powder into a mixer, and mixing for 1h to obtain a mixed precursor;
(2) Preparing powder: keeping the temperature of the precursor at 1500 ℃ for 3h to obtain (La) with pyrochlore structure 0.5 Sm 0.5 ) 2 (Zr 0.7 Ce 0.3 ) 2 O 7 Powder;
(3) Preparing slurry: adding 100 parts of water and 0.5 part of dispersant BYK190 into a slurry mixing tank, fully stirring, adding 100 parts of powder, stirring for 0.5h to form slurry, starting a pump for communicating the slurry mixing tank with a ball mill, circularly grinding the slurry through the ball mill, and stopping grinding when the powder granularity D50 in the slurry reaches 1 mu m to obtain slurry;
(4) Preparing a heat-insulating radiation material: 100 parts of slurry and 300 parts of adhesive are respectively added into a dispersion tank, and the adhesive consists of 5 percent (La) by mass 0.36 Ce 0.64 )PO 4 With a mass fraction of 50% of Al (H) 2 PO 4 ) 3 Mixing, and stirring and dispersing the slurry and the adhesive at a high speed for 2 hours to obtain a heat-insulating radiation material;
(5) Testing the performance of the heat-insulating radiation material: an infrared emissivity tester is adopted to test the total wavelength integral emissivity of the heat-insulating radiation material, the working temperature is more than 0.87 at 25-1400 ℃, the thermal conductivity is 0.96W/(m.k) at 1200 ℃, and the energy consumption of the wall-sprayed heat-insulating radiation material is reduced by 13.3 percent compared with a high-temperature kiln which is not sprayed with the heat-insulating radiation material. The coating is coated on a refractory brick, the temperature of the coating is kept at 1200 ℃ for 15min, and the cracking and falling phenomena do not occur after the coating is quenched by water for 30 times.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.
Claims (9)
1. A preparation method of a heat-insulating radiation material prepared by using zirconia polishing powder waste is characterized by comprising the following steps: the method comprises the following steps:
step (1) pretreatment: sieving the zirconia polishing powder waste, drying and mixing the sieved zirconia polishing powder waste with rare earth carbonate to obtain precursor powder;
step (2) preparation of radiation powder: firing and insulating the precursor powderThen pyrochlore-structured (La) is obtained 0.5+x Sm 0.5-x ) 2 (Zr 0.7 Ce 0.3 ) 2 O 7 Powder, wherein x = -0.5, 0 or 0.5;
step (3) preparation of radiation slurry: dissolving a dispersing agent in water, adding the powder after fully mixing, grinding after stirring, and obtaining slurry after grinding;
step (4) preparation of radiation material: and mixing and stirring the slurry and a binder solution to obtain the heat-insulating radiation material prepared by using the zirconia polishing powder waste.
2. The method for preparing the heat-insulating radiation material prepared by using the zirconia polishing powder waste material according to claim 1, wherein the method comprises the following steps: the zirconia polishing powder waste material in the step (1) contains ZrO 2 50-65%, polishing impurities 1-5%, and the balance of water; the rare earth carbonate in the step (1) is at least one of cerium carbonate, lanthanum carbonate and samarium carbonate.
3. The method for preparing a heat-insulating radiation material by using zirconia polishing powder waste according to claim 1, wherein: the temperature of the drying step in the step (1) is 180-220 ℃, and the time is 1-3 hours; the time of the mixing step in the step (1) is 0.5-1.5 hours.
4. The method for preparing a heat-insulating radiation material by using zirconia polishing powder waste according to claim 1, wherein: the burning temperature in the step (2) is 1450-1550 ℃; the time of the heat preservation step in the step (2) is 2-4 hours.
5. The method for preparing the heat-insulating radiation material prepared by using the zirconia polishing powder waste material according to claim 1, wherein the method comprises the following steps: the dispersant in the step (3) is at least one of BYK-190, RT-8040 or RT-8022; the mass ratio of the water, the dispersing agent and the powder in the step (3) is 1:0.005-0.15:1-2.
6. The method for preparing a heat-insulating radiation material by using zirconia polishing powder waste according to claim 1, wherein: the powder granularity D of the slurry in the step (3) 50 ≤1μm。
7. The method for preparing the heat-insulating radiation material prepared by using the zirconia polishing powder waste material according to claim 1, wherein the method comprises the following steps: the mass ratio of the slurry to the adhesive in the step (4) is 1-2; the adhesive solution in the step (4) is prepared from (La) 0.36 Ce 0.64 )PO 4 With Al (H) 2 PO 4 ) 3 Are mixed to form (La) among them 0.36 Ce 0.64 )PO 4 With Al (H) 2 PO 4 ) 3 The mass ratio of (La) is 1 0.36 Ce 0.64 )PO 4 With Al (H) 2 PO 4 ) 3 The sum of the mass of (a) is 45-60% of the mass of the binder solution.
8. A thermal insulation radiation material prepared by utilizing zirconia polishing powder waste is characterized in that: the heat-insulating radiation material is prepared by the preparation method of any one of claims 1 to 7.
9. The use of the thermal radiation shielding material prepared by using the zirconia polishing powder waste material according to claim 8, wherein: the application of the heat-insulating radiation material in the preparation of industrial kilns.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040038085A1 (en) * | 2002-08-21 | 2004-02-26 | Litton David A. | Thermal barrier coatings with low thermal conductivity |
| CN101200375A (en) * | 2007-11-16 | 2008-06-18 | 北京矿冶研究总院 | Preparation method of nano zirconium-containing series thermal barrier coating material |
| CN102492324A (en) * | 2011-12-19 | 2012-06-13 | 浙江摩多巴克斯汽配有限公司 | Coating reinforcing agent, preparation method thereof and phosphate-metal aluminum powder coating using reinforcing agent |
| CN102531588A (en) * | 2012-03-03 | 2012-07-04 | 赣州虔东稀土集团股份有限公司 | Method for preparing zirconium oxide ceramic by recycling zirconium oxide ceramic grinding wastes |
| CN103304236A (en) * | 2013-06-09 | 2013-09-18 | 渤海大学 | Three-phase nano thermal barrier coating material in pyrochlore structure and preparation method thereof |
| CN103708831A (en) * | 2013-09-28 | 2014-04-09 | 雅安远创陶瓷有限责任公司 | Yttria-stabilized zirconia powder and preparation method thereof |
| CN104557088A (en) * | 2015-01-04 | 2015-04-29 | 武汉当思源科技发展有限公司 | High-radiation wear-resistant energy-saving coating and preparation method thereof |
| CN111939894A (en) * | 2020-09-17 | 2020-11-17 | 河北雄安稀土功能材料创新中心有限公司 | Cerium-zirconium-based composite oxide with core-shell structure and preparation method thereof |
-
2022
- 2022-09-29 CN CN202211199363.3A patent/CN115650768B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040038085A1 (en) * | 2002-08-21 | 2004-02-26 | Litton David A. | Thermal barrier coatings with low thermal conductivity |
| CN101200375A (en) * | 2007-11-16 | 2008-06-18 | 北京矿冶研究总院 | Preparation method of nano zirconium-containing series thermal barrier coating material |
| CN102492324A (en) * | 2011-12-19 | 2012-06-13 | 浙江摩多巴克斯汽配有限公司 | Coating reinforcing agent, preparation method thereof and phosphate-metal aluminum powder coating using reinforcing agent |
| CN102531588A (en) * | 2012-03-03 | 2012-07-04 | 赣州虔东稀土集团股份有限公司 | Method for preparing zirconium oxide ceramic by recycling zirconium oxide ceramic grinding wastes |
| CN103304236A (en) * | 2013-06-09 | 2013-09-18 | 渤海大学 | Three-phase nano thermal barrier coating material in pyrochlore structure and preparation method thereof |
| CN103708831A (en) * | 2013-09-28 | 2014-04-09 | 雅安远创陶瓷有限责任公司 | Yttria-stabilized zirconia powder and preparation method thereof |
| CN104557088A (en) * | 2015-01-04 | 2015-04-29 | 武汉当思源科技发展有限公司 | High-radiation wear-resistant energy-saving coating and preparation method thereof |
| CN111939894A (en) * | 2020-09-17 | 2020-11-17 | 河北雄安稀土功能材料创新中心有限公司 | Cerium-zirconium-based composite oxide with core-shell structure and preparation method thereof |
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