CN112479689A - Quick-drying explosion-proof high-strength wear-resistant castable - Google Patents
Quick-drying explosion-proof high-strength wear-resistant castable Download PDFInfo
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- CN112479689A CN112479689A CN202011188723.0A CN202011188723A CN112479689A CN 112479689 A CN112479689 A CN 112479689A CN 202011188723 A CN202011188723 A CN 202011188723A CN 112479689 A CN112479689 A CN 112479689A
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- 238000001035 drying Methods 0.000 title claims abstract description 18
- 239000002131 composite material Substances 0.000 claims abstract description 16
- 239000000843 powder Substances 0.000 claims abstract description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000004568 cement Substances 0.000 claims abstract description 9
- 229910052751 metal Inorganic materials 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 9
- 239000000654 additive Substances 0.000 claims abstract description 8
- 230000000996 additive effect Effects 0.000 claims abstract description 8
- 150000004645 aluminates Chemical class 0.000 claims abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 8
- 239000000835 fiber Substances 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 8
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 7
- 229910052594 sapphire Inorganic materials 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 238000004880 explosion Methods 0.000 claims abstract description 3
- PQVSTLUFSYVLTO-UHFFFAOYSA-N ethyl n-ethoxycarbonylcarbamate Chemical compound CCOC(=O)NC(=O)OCC PQVSTLUFSYVLTO-UHFFFAOYSA-N 0.000 claims description 7
- GLXDVVHUTZTUQK-UHFFFAOYSA-M lithium hydroxide monohydrate Substances [Li+].O.[OH-] GLXDVVHUTZTUQK-UHFFFAOYSA-M 0.000 claims description 7
- 229940040692 lithium hydroxide monohydrate Drugs 0.000 claims description 7
- WMFOQBRAJBCJND-UHFFFAOYSA-M Lithium hydroxide Chemical compound [Li+].[OH-] WMFOQBRAJBCJND-UHFFFAOYSA-M 0.000 claims description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 4
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims description 4
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 4
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims description 4
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000003973 paint Substances 0.000 claims 4
- 229910001570 bauxite Inorganic materials 0.000 abstract description 7
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 abstract description 7
- 229910010271 silicon carbide Inorganic materials 0.000 abstract description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract description 3
- 229910021418 black silicon Inorganic materials 0.000 abstract description 3
- 239000010431 corundum Substances 0.000 abstract description 3
- 229910052710 silicon Inorganic materials 0.000 abstract description 3
- 239000010703 silicon Substances 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 238000012856 packing Methods 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001603 reducing effect Effects 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 235000013619 trace mineral Nutrition 0.000 description 2
- 239000011573 trace mineral Substances 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 229940005740 hexametaphosphate Drugs 0.000 description 1
- 238000009856 non-ferrous metallurgy Methods 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
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- 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
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/71—Ceramic products containing macroscopic reinforcing agents
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- 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
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3201—Alkali metal oxides or oxide-forming salts thereof
- C04B2235/3203—Lithium oxide or oxide-forming salts thereof
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- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
- C04B2235/3222—Aluminates other than alumino-silicates, e.g. spinel (MgAl2O4)
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- 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
- C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
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- C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
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Abstract
The invention discloses a quick-drying explosion-proof high-strength wear-resistant castable which comprises the following components in percentage by weight: GL-85 bauxite 5-3 mm, 24-30%; 20-24% of GL-85 bauxite with the thickness of 3-1 mm; GL-85 bauxite 1-0 mm, 8-12%; 1-0 mm of 90-black silicon carbide, 8-12%; 90 percent of black silicon carbide is less than or equal to 0.088mm and 6-10 percent; 93 percent of brown corundum powder is less than or equal to 0.088mm and 15-20 percent; 92% of silicon micropowder, 2-6%; alpha-Al2O34-6% of micro powder; 4-7% of aluminate cement; 3-5 mm of steel fiber, 1.0-1.5%; 0.06-0.10% of composite explosion-proof agent; 0.20-0.40% of composite additive, 85 bauxite and silicon carbide are used as main materials, superfine powder is combined, reasonable grain composition is determined, the closest packing is achieved on the premise that the wear resistance can be guaranteed, and the composite additive has good fluidity and is convenient to construct. Simultaneously, metal aluminum powder and explosion-proof fiber are added as a composite explosion-proof agent, so that the phenomenon that the metal aluminum powder and the explosion-proof fiber are used as the composite explosion-proof agent is effectively avoidedThe explosion occurs during baking, and the use safety and reliability are greatly enhanced.
Description
Technical Field
The invention relates to the field of refractory materials, in particular to a quick-drying explosion-proof high-strength wear-resistant castable.
Background
The high-strength wear-resistant castable is mainly used for high-temperature furnaces and pipelines in related industries such as nonferrous metallurgy and cement kilns, and the like, the used parts have complex structures and severe environments, and the castable is required to have good erosion resistance, wear resistance and corrosion resistance; meanwhile, the construction site generally requires a short construction period, so that the castable needs to be quickly dried and anti-burst and has better structural strength, and most of the existing high-strength wear-resistant castable cannot meet the characteristics at the same time.
Disclosure of Invention
The invention aims to provide a quick-drying explosion-proof high-strength wear-resistant castable aiming at the defects of the prior art.
In order to achieve the above object, the present invention is achieved by the following technical solutions.
A quick-drying explosion-proof high-strength wear-resistant castable comprises the following components in percentage by weight:
further comprises the following components in percentage by weight:
further comprises the following components in percentage by weight:
further comprises the following components in percentage by weight:
further said alpha-Al2O3Al in micro powder2O3The content is more than or equal to 99.5 percent, and the alpha-Al2O3The mesh number of the micro powder is larger than 325 meshes.
The composite explosion-proof agent is further prepared by mixing metal aluminum powder, explosion-proof fibers and the like, wherein the content of aluminum in the metal aluminum powder is more than 99.5%, and the mesh number is more than 325.
The composite additive is further prepared by mixing sodium tripolyphosphate, sodium hexametaphosphate, lithium hydroxide monohydrate and the like in mass, and the content of LiOH in the lithium hydroxide monohydrate is more than or equal to 56.5%.
Further, the aluminate cement is Secar-68 aluminate cement, Al2O3The content of the CaO is 65-68%, and the content of the CaO is 30-33%.
The invention has the beneficial effects that:
1. 85 bauxite and silicon carbide are used as main materials, superfine powder is combined, reasonable grain composition is determined, and the dense packing is achieved on the premise that the wear resistance is guaranteed, so that the high-performance bauxite has good fluidity and is convenient to construct.
2. Meanwhile, metal aluminum powder and explosion-proof fibers are added to serve as a composite explosion-proof agent, so that the explosion in baking is effectively avoided, and the use safety and reliability are greatly enhanced.
3. By using the composite additive, the hardening acceleration effect of the lithium hydroxide monohydrate is combined with the ammonium polyacrylate and the hexametaphosphate, the water reducing effect is obviously improved, the water reducing effect is improved by about 15 percent compared with a water reducing agent (sodium tripolyphosphate or sodium hexametaphosphate), the water adding amount is 6-6.5 percent, the initial setting time is obviously shortened to within 1 hour, the baking can be carried out after demolding, the composite additive has better structural strength, and the construction period is greatly shortened.
Detailed Description
The present invention is further illustrated by the following examples, but is not limited to the details of the description.
A quick-drying explosion-proof high-strength wear-resistant castable comprises the following components in percentage by weight:
wherein, the steel fiber, the composite explosion-proof agent and the composite additive are additionally added, and the added amount accounts for the weight percentage of the components (bauxite, silicon carbide, brown corundum powder, silicon micropowder, alpha-Al)2O3Micro powder, aluminate cement) in the total mass.
Al in GL-85 bauxite2O3Content is more than or equal to 85 percent, Fe2O3The content is less than or equal to 3.0 percent, and TiO2The content is less than or equal to 4.0 percent, the rest trace elements are less than 1.0 percent, and the volume density is more than or equal to 3.1g/cm3,
93 Al in brown corundum powder2O3Content is more than or equal to 93 percent, Fe2O3The content is less than or equal to 1.0 percent, and TiO2The content is less than or equal to 2.0 percent, and the adding amount of the other trace elements is less than 1.0 percent;
90% of black silicon carbide, wherein the SiC content is more than or equal to 90%;
SiO in 92 silicon micropowder2The content is more than or equal to 92 percent;
α-Al2O3micro powder of Al2O3The content is more than or equal to 99.5 percent, the single-peak alumina micro powder is obtained, and the mesh number is more than 325 meshes;
the composite explosion-proof agent is a mixture of metal aluminum powder, explosion-proof fibers and the like, wherein the content of aluminum in the metal aluminum powder is more than 99.5 percent, and the mesh number is more than 325 meshes;
the composite additive is a mixture of sodium tripolyphosphate, sodium hexametaphosphate, lithium hydroxide monohydrate and the like in mass; lithium hydroxide monohydrate, the LiOH content is more than or equal to 56.5 percent.
The aluminate cement is Secar-68 aluminate cement and Al2O3The content of the CaO is 65-68%, and the content of the CaO is 30-33%.
The above contents refer to mass percent.
Example 1:
a quick-drying explosion-proof type high-strength wear-resistant pouring method comprises the following steps:
example 2:
a quick-drying explosion-proof type high-strength wear-resistant pouring method comprises the following steps:
example 3:
a quick-drying explosion-proof type high-strength wear-resistant pouring method comprises the following steps:
the components of the embodiment are prepared into quick-drying explosion-proof high-strength wear-resistant casting, and the performance parameters of the casting meet the following standards:
it should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Not all embodiments are exhaustive. All obvious changes and modifications which are obvious to the technical scheme of the invention are covered by the protection scope of the invention.
Claims (8)
5. a method according to claim 1 for quick dryingThe anti-explosion high-strength wear-resistant castable is characterized in that: the alpha-Al2O3Al in micro powder2O3The content is more than or equal to 99.5 percent, and the alpha-Al2O3The mesh number of the micro powder is larger than 325 meshes.
6. The quick-drying explosion-proof high-strength wear-resistant castable material according to claim 1, characterized in that: the composite explosion-proof agent is formed by mixing metal aluminum powder, explosion-proof fibers and the like, wherein the aluminum content in the metal aluminum powder is more than 99.5%, and the mesh number is more than 325.
7. The quick-drying explosion-proof high-strength wear-resistant castable material according to claim 1, characterized in that: the composite additive is a mixture of sodium tripolyphosphate, sodium hexametaphosphate, lithium hydroxide monohydrate and the like, and the LiOH content in the lithium hydroxide monohydrate is more than or equal to 56.5%.
8. The quick-drying explosion-proof high-strength wear-resistant castable material according to claim 1, characterized in that: the aluminate cement is Secar-68 type aluminate cement and Al2O3The content of the CaO is 65-68%, and the content of the CaO is 30-33%.
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN113446599A (en) * | 2021-07-09 | 2021-09-28 | 南通高欣耐磨科技股份有限公司 | Composite ceramic burner and manufacturing method thereof |
CN114163222A (en) * | 2021-12-01 | 2022-03-11 | 北京金隅通达耐火技术有限公司 | Titanium composite corundum silicon carbide wear-resistant castable for cement kiln mouths and preparation method thereof |
CN114478032A (en) * | 2021-12-31 | 2022-05-13 | 河南宏宇新材料科技有限公司 | High-strength nano castable for iron-making slag-disintegrating pit |
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CN110407595A (en) * | 2019-08-29 | 2019-11-05 | 云南濮耐昆钢高温材料有限公司 | A kind of composite anti-explosion high-strength refractory castable |
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CN101734934A (en) * | 2009-10-28 | 2010-06-16 | 郑州真金耐火材料有限责任公司 | High-strength steel fibre castable |
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CN114163222A (en) * | 2021-12-01 | 2022-03-11 | 北京金隅通达耐火技术有限公司 | Titanium composite corundum silicon carbide wear-resistant castable for cement kiln mouths and preparation method thereof |
CN114163222B (en) * | 2021-12-01 | 2022-08-30 | 北京金隅通达耐火技术有限公司 | Titanium composite corundum silicon carbide wear-resistant castable for cement kiln mouths and preparation method thereof |
CN114478032A (en) * | 2021-12-31 | 2022-05-13 | 河南宏宇新材料科技有限公司 | High-strength nano castable for iron-making slag-disintegrating pit |
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