CN112479689A - Quick-drying explosion-proof high-strength wear-resistant castable - Google Patents

Quick-drying explosion-proof high-strength wear-resistant castable Download PDF

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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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explosion
proof
quick
percent
resistant castable
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崔娟
符耀钰
鲁志燕
辉福美
陈勇
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Prco Kisc Yunnan Refractories Co ltd
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Prco Kisc Yunnan Refractories Co ltd
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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

Quick-drying explosion-proof high-strength wear-resistant castable
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:
Figure BDA0002752171820000011
Figure BDA0002752171820000021
further comprises the following components in percentage by weight:
Figure BDA0002752171820000022
further comprises the following components in percentage by weight:
Figure BDA0002752171820000023
Figure BDA0002752171820000031
further comprises the following components in percentage by weight:
Figure BDA0002752171820000032
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:
Figure BDA0002752171820000051
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:
Figure BDA0002752171820000061
Figure BDA0002752171820000071
example 2:
a quick-drying explosion-proof type high-strength wear-resistant pouring method comprises the following steps:
Figure BDA0002752171820000072
example 3:
a quick-drying explosion-proof type high-strength wear-resistant pouring method comprises the following steps:
Figure BDA0002752171820000073
Figure BDA0002752171820000081
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:
Figure BDA0002752171820000082
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)

1. The utility model provides a quick-drying explosion-proof type wear resistant castable that excels in which characterized in that: the paint comprises the following components in percentage by weight:
Figure FDA0002752171810000011
2. the quick-drying explosion-proof high-strength wear-resistant castable material according to claim 1, characterized in that: the paint comprises the following components in percentage by weight:
Figure FDA0002752171810000012
Figure FDA0002752171810000021
3. the quick-drying explosion-proof high-strength wear-resistant castable material according to claim 1, characterized in that: the paint comprises the following components in percentage by weight:
Figure FDA0002752171810000022
4. the quick-drying explosion-proof high-strength wear-resistant castable material according to claim 1, characterized in that: the paint comprises the following components in percentage by weight:
Figure FDA0002752171810000031
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%.
CN202011188723.0A 2020-10-30 2020-10-30 Quick-drying explosion-proof high-strength wear-resistant castable Pending CN112479689A (en)

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Cited By (3)

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Publication number Priority date Publication date Assignee Title
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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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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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Application publication date: 20210312