CN114368974A - Alumina hollow ball brick and preparation method thereof - Google Patents
Alumina hollow ball brick and preparation method thereof Download PDFInfo
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- CN114368974A CN114368974A CN202210073804.9A CN202210073804A CN114368974A CN 114368974 A CN114368974 A CN 114368974A CN 202210073804 A CN202210073804 A CN 202210073804A CN 114368974 A CN114368974 A CN 114368974A
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- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 title claims abstract description 112
- 239000011449 brick Substances 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000002245 particle Substances 0.000 claims abstract description 72
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 36
- 239000007864 aqueous solution Substances 0.000 claims abstract description 21
- 239000011230 binding agent Substances 0.000 claims abstract description 21
- 239000010431 corundum Substances 0.000 claims abstract description 21
- 238000003756 stirring Methods 0.000 claims abstract description 19
- 239000002994 raw material Substances 0.000 claims abstract description 16
- 229910001845 yogo sapphire Inorganic materials 0.000 claims abstract description 15
- 238000010304 firing Methods 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 238000000465 moulding Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 6
- 229920001353 Dextrin Polymers 0.000 claims description 13
- 239000004375 Dextrin Substances 0.000 claims description 13
- 235000019425 dextrin Nutrition 0.000 claims description 13
- 239000002131 composite material Substances 0.000 claims 4
- 230000007774 longterm Effects 0.000 abstract description 4
- 239000000843 powder Substances 0.000 abstract description 3
- 238000005245 sintering Methods 0.000 abstract description 3
- 239000011464 hollow brick Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000013081 microcrystal Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
- C04B35/101—Refractories from grain sized mixtures
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/64—Burning or sintering processes
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- 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
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/54—Particle size related information
- C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
- C04B2235/5427—Particle size related information expressed by the size of the particles or aggregates thereof millimeter or submillimeter sized, i.e. larger than 0,1 mm
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/74—Physical characteristics
- C04B2235/77—Density
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention discloses an alumina hollow ball brick which comprises the following raw material components in percentage by weight: 15-25% of alumina hollow spheres with the particle size of 2-3mm, 25-35% of alumina hollow spheres with the particle size of 1-1.9mm, 10-15% of alumina hollow spheres with the particle size of 0.2-0.9mm, 20-25% of white corundum with the particle size of 200 meshes, and 2000-mesh a-Al2O310-15% of organic binder and 1.5-2% of organic binder. The preparation method comprises the following steps: s1, preparing an organic binding agent and water into an aqueous solution for later use; s2, adding the alumina hollow spheres into a stirrer and stirring uniformly; s3, adding the aqueous solution prepared in the step S1 into a stirrer to be continuously stirred, so that the particle surfaces of the alumina hollow spheres are fully soaked by the aqueous solution; s4, mixing white corundum of 200 meshes with2000 mesh a-Al2O3Adding the mixture into a stirrer in the step S3 to continue stirring; and S5, carrying out physical firing molding after stirring in the step S4. The high purity and the strength of the finished brick are ensured through the combination of high-purity raw materials and ultrafine powder and high-temperature sintering, and the downstream products are not polluted in the long-term use process in a strong reducing atmosphere.
Description
Technical Field
The invention relates to the technical field of hollow bricks, in particular to an alumina hollow sphere brick and a preparation method thereof.
Background
The alumina hollow ball is a novel high-temperature heat insulating material, is prepared by melting and blowing industrial alumina in an electric furnace, and has a crystal form of a-Al2O3 microcrystal. The alumina hollow ball is used as main body, and can be made into various products, its maximum service temperature is 1800 deg.C, and its mechanical strength is high, and is several times that of general light product, and its volume density is only one-half of that of corundum product. The kiln wall built by the alumina bubble bricks has high structural strength and excellent heat-insulating and energy-saving effects, and can effectively reduce the material consumption of the furnace body.
The existing alumina hollow ball brick has high impurity content and low strength, and is easy to cause the pollution of downstream products after long-term use in strong reducing atmosphere.
Disclosure of Invention
The invention aims to provide an alumina hollow sphere brick and a preparation method thereof, and solves the problems that the existing alumina hollow sphere brick has high impurity content and low strength, and is easy to cause pollution to downstream products after being used in a strong reducing atmosphere for a long time.
The purpose of the invention is realized by the following technical scheme:
an alumina hollow ball brick comprises the following raw material components in percentage by weight: 15-25% of alumina hollow spheres with the particle size of 2-3mm, 25-35% of alumina hollow spheres with the particle size of 1-1.9mm, 10-15% of alumina hollow spheres with the particle size of 0.2-0.9mm, 20-25% of white corundum with the particle size of 200 meshes, and 2000-mesh a-Al2O310-15% of organic binder and 1.5-2% of organic binder.
The further technical scheme is that the material comprises the following raw materials in percentage by weight: 20 percent of alumina hollow spheres with the particle size of 2-3mm, 30 percent of alumina hollow spheres with the particle size of 1-1.9mm, 16 percent of alumina hollow spheres with the particle size of 0.2-0.9mm, 22 percent of white corundum with the particle size of 200 meshes, and 2000-mesh a-Al2O310.5 percent and 1.5 percent of organic binder.
The further technical proposal is that the organic binder is dextrin.
A preparation method of an alumina bubble brick comprises the following steps:
s1, preparing an aqueous solution of the organic binder and water according to the weight ratio of 1:4 for later use;
s2, adding the alumina hollow spheres with the particle size of 2-3mm, the alumina hollow spheres with the particle size of 1-1.9mm and the alumina hollow spheres with the particle size of 0.2-0.9mm into a stirrer and uniformly stirring;
s3, adding the aqueous solution prepared in the step S1 into a stirrer to be continuously stirred, so that the particle surfaces of the alumina hollow spheres are fully soaked by the aqueous solution;
s4, mixing white corundum of 200 meshes with alpha-Al of 2000 meshes2O3Adding the mixture into a stirrer in the step S3 to continue stirring;
and S5, carrying out physical firing molding after stirring in the step S4.
The further technical scheme is that the material comprises the following raw materials in percentage by weight: 15-25% of alumina hollow spheres with the particle size of 2-3mm, 25-35% of alumina hollow spheres with the particle size of 1-1.9mm, 10-15% of alumina hollow spheres with the particle size of 0.2-0.9mm, 20-25% of white corundum with the particle size of 200 meshes, and 2000-mesh a-Al2O310-15% of organic binder and 1.5-2% of organic binder.
The further technical scheme is that the paint comprises the following raw materials in percentage by weight: 20 percent of alumina hollow spheres with the particle size of 2-3mm, 30 percent of alumina hollow spheres with the particle size of 1-1.9mm, 16 percent of alumina hollow spheres with the particle size of 0.2-0.9mm, 22 percent of white corundum with the particle size of 200 meshes, and 2000-mesh a-Al2O310.5 percent and 1.5 percent of organic binder.
The further technical proposal is that the organic binder is dextrin.
According to a further technical scheme, in the step S4, the stirring time is 15-25 minutes.
The invention has the following advantages:
the alumina hollow brick ensures the high purity and strength of the finished brick through the combination of high-purity raw materials and ultrafine powder and high-temperature sintering, and cannot cause pollution to downstream products in the long-term use process in a strong reducing atmosphere.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention will be described in detail and completely with reference to the accompanying drawings.
Thus, the following detailed description of embodiments of the invention is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.
Example 1
An alumina hollow ball brick comprises the following raw material components in percentage by weight: 20 percent of alumina hollow spheres with the particle size of 2-3mm, 30 percent of alumina hollow spheres with the particle size of 1-1.9mm, 16 percent of alumina hollow spheres with the particle size of 0.2-0.9mm, 22 percent of white corundum with the particle size of 200 meshes, and 2000-mesh a-Al2O310.5 percent of dextrin and 1.5 percent of dextrin.
A preparation method of an alumina bubble brick comprises the following steps by weight:
s1, preparing aqueous solution of 1.5 percent of dextrin and water according to the weight ratio of 1:4 for later use;
s2, adding 20% of the alumina hollow spheres with the particle size of 2-3mm, 30% of the alumina hollow spheres with the particle size of 1-1.9mm and 16% of the alumina hollow spheres with the particle size of 0.2-0.9mm into a stirrer to be uniformly stirred;
s3, adding the aqueous solution prepared in the step S1 into a stirrer to be continuously stirred, so that the particle surfaces of the alumina hollow spheres are fully soaked by the aqueous solution;
s4, mixing white corundum of 200 meshes with 22 percent and alpha-Al of 2000 meshes2O3Adding 10.5 percent of the mixture into the stirrer in the step S3, and continuing stirring for 20 minutes;
and S5, carrying out physical firing molding after stirring in the step S4.
Example 2
An alumina hollow ball brick comprises the following raw material components in percentage by weight: 15 percent of alumina hollow sphere with the grain diameter of 2-3mm,35 percent of alumina hollow ball with the grain diameter of 1-1.9mm, 10 percent of alumina hollow ball with the grain diameter of 0.2-0.9mm, 23 percent of white corundum with 200 meshes and 2000 meshes of a-Al2O315% and dextrin 2%.
A preparation method of an alumina bubble brick comprises the following steps by weight:
s1, preparing aqueous solution of 2% dextrin and water according to the weight ratio of 1:4 for later use;
s2, adding 15% of alumina hollow spheres with the particle size of 2-3mm, 35% of alumina hollow spheres with the particle size of 1-1.9mm and 10% of alumina hollow spheres with the particle size of 0.2-0.9mm into a stirrer to be uniformly stirred;
s3, adding the aqueous solution prepared in the step S1 into a stirrer to be continuously stirred, so that the particle surfaces of the alumina hollow spheres are fully soaked by the aqueous solution;
s4, mixing white corundum of 200 meshes with 23 percent and alpha-Al of 2000 meshes2O3Adding 15 percent of the mixture into the stirrer in the step S3, and continuing stirring for 15 minutes;
and S5, carrying out physical firing molding after stirring in the step S4.
Example 3
An alumina hollow ball brick comprises the following raw material components in percentage by weight: 25 percent of alumina hollow spheres with the particle size of 2-3mm, 25 percent of alumina hollow spheres with the particle size of 1-1.9mm, 13 percent of alumina hollow spheres with the particle size of 0.2-0.9mm, 25 percent of white corundum with the particle size of 200 meshes, and 2000-mesh alpha-Al2O310% and dextrin 2%.
A preparation method of an alumina bubble brick comprises the following steps by weight:
s1, preparing aqueous solution of 2% dextrin and water according to the weight ratio of 1:4 for later use;
s2, adding 25% of alumina hollow spheres with the particle size of 2-3mm, 25% of alumina hollow spheres with the particle size of 1-1.9mm and 13% of alumina hollow spheres with the particle size of 0.2-0.9mm into a stirrer to be uniformly stirred;
s3, adding the aqueous solution prepared in the step S1 into a stirrer to be continuously stirred, so that the particle surfaces of the alumina hollow spheres are fully soaked by the aqueous solution;
s4, mixing white corundum of 200 meshes with 25 percent of alpha-Al of 2000 meshes2O3Adding 10 percent of the mixture into the stirrer in the step S3, and continuing stirring for 25 minutes;
and S5, carrying out physical firing molding after stirring in the step S4.
Example 4
An alumina hollow ball brick comprises the following raw material components in percentage by weight: 23.2 percent of alumina hollow spheres with the particle size of 2-3mm, 28 percent of alumina hollow spheres with the particle size of 1-1.9mm, 15 percent of alumina hollow spheres with the particle size of 0.2-0.9mm, 20 percent of white corundum with 200 meshes, and 2000-mesh a-Al2O312 percent and dextrin 1.8 percent.
A preparation method of an alumina bubble brick comprises the following steps by weight:
s1, preparing aqueous solution of 1.8 percent of dextrin and water according to the weight ratio of 1:4 for later use;
s2, adding 23.2% of alumina hollow spheres with the particle size of 2-3mm, 28% of alumina hollow spheres with the particle size of 1-1.9mm and 15% of alumina hollow spheres with the particle size of 0.2-0.9mm into a stirrer to be uniformly stirred;
s3, adding the aqueous solution prepared in the step S1 into a stirrer to be continuously stirred, so that the particle surfaces of the alumina hollow spheres are fully soaked by the aqueous solution;
s4, mixing white corundum of 200 meshes with 20 percent and alpha-Al of 2000 meshes2O3Adding 12 percent of the mixture into the stirrer in the step S3, and continuing stirring for 20 minutes;
and S5, carrying out physical firing molding after stirring in the step S4.
The performance indexes of the alumina hollow brick prepared by the embodiment of the application are as follows:
Al2O3≥99.3%，SiO2≤0.3%，Fe2O3less than or equal to 0.2 percent and the volume density of 1.55-2.0 g/cm3The compressive strength is 15-25 MPa.
The alumina hollow brick ensures the high purity and strength of the finished brick through the combination of high-purity raw materials and ultrafine powder and high-temperature sintering, and cannot cause pollution to downstream products in the long-term use process in a strong reducing atmosphere.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (8)
1. An alumina bubble brick is characterized in that: the composite material comprises the following raw materials in percentage by weight: 15-25% of alumina hollow spheres with the particle size of 2-3mm, 25-35% of alumina hollow spheres with the particle size of 1-1.9mm, 10-15% of alumina hollow spheres with the particle size of 0.2-0.9mm, 20-25% of white corundum with the particle size of 200 meshes, and 2000-mesh a-Al2O310-15% of organic binder and 1.5-2% of organic binder.
2. The alumina bubble brick of claim 1, wherein: the composite material comprises the following raw materials in percentage by weight: 20 percent of alumina hollow spheres with the particle size of 2-3mm, 30 percent of alumina hollow spheres with the particle size of 1-1.9mm, 16 percent of alumina hollow spheres with the particle size of 0.2-0.9mm, 22 percent of white corundum with the particle size of 200 meshes, and 2000-mesh a-Al2O310.5 percent and 1.5 percent of organic binder.
3. The alumina bubble brick according to claim 1 or 2, wherein: the organic binder is dextrin.
4. A preparation method of an alumina bubble brick is characterized by comprising the following steps: the method comprises the following steps:
s1, preparing an aqueous solution of the organic binder and water according to the weight ratio of 1:4 for later use;
s2, adding the alumina hollow spheres with the particle size of 2-3mm, the alumina hollow spheres with the particle size of 1-1.9mm and the alumina hollow spheres with the particle size of 0.2-0.9mm into a stirrer and uniformly stirring;
s3, adding the aqueous solution prepared in the step S1 into a stirrer to be continuously stirred, so that the particle surfaces of the alumina hollow spheres are fully soaked by the aqueous solution;
s4, mixing white corundum of 200 meshes with alpha-Al of 2000 meshes2O3Adding the mixture into a stirrer in the step S3 to continue stirring;
and S5, carrying out physical firing molding after stirring in the step S4.
5. The method for preparing the alumina bubble brick according to claim 4, wherein the method comprises the following steps: the composite material comprises the following raw materials in percentage by weight: 15-25% of alumina hollow spheres with the particle size of 2-3mm, 25-35% of alumina hollow spheres with the particle size of 1-1.9mm, 10-15% of alumina hollow spheres with the particle size of 0.2-0.9mm, 20-25% of white corundum with the particle size of 200 meshes, and 2000-mesh a-Al2O310-15% of organic binder and 1.5-2% of organic binder.
6. The preparation method of the alumina bubble brick according to claim 1, wherein the preparation method comprises the following steps: the composite material comprises the following raw materials in percentage by weight: 20 percent of alumina hollow spheres with the particle size of 2-3mm, 30 percent of alumina hollow spheres with the particle size of 1-1.9mm, 16 percent of alumina hollow spheres with the particle size of 0.2-0.9mm, 22 percent of white corundum with the particle size of 200 meshes, and 2000-mesh a-Al2O310.5 percent and 1.5 percent of organic binder.
7. The preparation method of the alumina bubble brick according to claim 1, wherein the preparation method comprises the following steps: the organic binder is dextrin.
8. The preparation method of the alumina bubble brick according to claim 1, wherein the preparation method comprises the following steps: in the step S4, the stirring time is 15-25 minutes.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210073804.9A CN114368974A (en) | 2022-01-21 | 2022-01-21 | Alumina hollow ball brick and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116425564A (en) * | 2023-04-14 | 2023-07-14 | 北京华圻生态科技有限公司 | Alumina refractory material and preparation method thereof |
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| CN1554616A (en) * | 2003-12-24 | 2004-12-15 | 浙江大学 | Method for preparing ligh high strength aluminium oxide hollow ball ceramic |
| CN102491761A (en) * | 2011-11-16 | 2012-06-13 | 中钢集团洛阳耐火材料研究院有限公司 | Preparation method of hollow alumina ball thermal insulation refractory material |
| CN104193356A (en) * | 2014-08-12 | 2014-12-10 | 宜兴瑞泰耐火材料有限公司 | High-purity hollow alumina sphere brick applied to coal water slurry gasifier and preparation process thereof |
| CN108530088A (en) * | 2017-03-02 | 2018-09-14 | 洛阳利尔耐火材料有限公司 | A kind of zirconium-containing alumina hollow ball insulating brick and preparation method thereof |
| CN108675771A (en) * | 2018-05-16 | 2018-10-19 | 长沙中瓷新材料科技有限公司 | A kind of alumina hollow ball kiln brick |
-
2022
- 2022-01-21 CN CN202210073804.9A patent/CN114368974A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1554616A (en) * | 2003-12-24 | 2004-12-15 | 浙江大学 | Method for preparing ligh high strength aluminium oxide hollow ball ceramic |
| CN102491761A (en) * | 2011-11-16 | 2012-06-13 | 中钢集团洛阳耐火材料研究院有限公司 | Preparation method of hollow alumina ball thermal insulation refractory material |
| CN104193356A (en) * | 2014-08-12 | 2014-12-10 | 宜兴瑞泰耐火材料有限公司 | High-purity hollow alumina sphere brick applied to coal water slurry gasifier and preparation process thereof |
| CN108530088A (en) * | 2017-03-02 | 2018-09-14 | 洛阳利尔耐火材料有限公司 | A kind of zirconium-containing alumina hollow ball insulating brick and preparation method thereof |
| CN108675771A (en) * | 2018-05-16 | 2018-10-19 | 长沙中瓷新材料科技有限公司 | A kind of alumina hollow ball kiln brick |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116425564A (en) * | 2023-04-14 | 2023-07-14 | 北京华圻生态科技有限公司 | Alumina refractory material and preparation method thereof |
| CN116425564B (en) * | 2023-04-14 | 2024-03-12 | 北京华圻生态科技有限公司 | Alumina refractory material and preparation method thereof |
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Application publication date: 20220419 |