CN111253156B - Zirconium-aluminum amorphous pouring hot-patch refractory material - Google Patents
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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
- C04B35/48—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 zirconium or hafnium oxides, zirconates, zircon or hafnates
- C04B35/482—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
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
- C04B35/6303—Inorganic additives
- C04B35/6316—Binders based on silicon compounds
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3418—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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- C04B2235/00—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
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—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
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Abstract
The invention belongs to the technical field of refractory materials, and discloses a zirconium-aluminum amorphous pouring hot-patch refractory material which is formed by mixing a zirconium-aluminum mixture and a silica sol solution according to the mass ratio of 1: 0.125; the zirconium-aluminum mixture comprises the following components in percentage by mass of 100 percent: 60-70% of zircon sand, 20-30% of fused quartz sand and 10-15% of silica powder; the zircon sand comprises the following components in percentage by mass of 100 percent: 10-30% of zircon sand with the grain diameter of 0.3-0.5mm, 30-50% of zircon sand with the grain diameter of 0.2-0.3mm, 20-30% of zircon sand with the grain diameter of 0.088-0.2mm and 5-10% of zircon sand with the grain diameter of less than 0.088 mm. After the hot-patch refractory material is contacted with the surface of the damaged refractory brick, the hot-patch refractory material can quickly evaporate water in the high-temperature environment of the kiln, is solidified and hardened, and is firmly bonded with the refractory material at the damaged part, so that the thermal shock stability of the hot-patch refractory material is greatly superior to that of the original refractory brick, a pouring mode is adopted, the operation steps are simple and convenient, the labor intensity of operation of maintenance workers in the high-temperature environment is reduced, the kiln is repaired in time, and the safe operation of the kiln is guaranteed.
Description
Technical Field
The invention belongs to the technical field of refractory materials, and relates to a zirconium-aluminum amorphous pouring hot-patch refractory material.
Background
At present, in the production process of a high-temperature kiln for building refractory bricks, zirconium refractory bricks are widely used due to the particularity, compactness and corrosion resistance of the zirconium refractory bricks, wherein a plurality of parts of the glass kiln are formed by building the zirconium refractory bricks. In the high-temperature production, the refractory bricks inside the kiln can be subjected to different degrees of melting loss, burst defects and the like due to various reasons (such as misoperation of the operation of the kiln by enterprise operators, flame erosion and corrosion of combustion in the kiln, internal temperature quenching and sharp heating in the production process of igniting and heating after stopping fire and cooling of the kiln, internal acid-base gas erosion and the like formed in the raw material process of producing products) in the working and production process of the kiln, and if the wall part of the kiln is not treated in the later period, molten glass flows out after the molten glass erodes the zirconia corundum refractory bricks, so that major safety accidents occur, and if the treatment is not timely, the furnace can be stopped, so that the service life of the kiln is greatly influenced.
At present, siliceous heat-supplementing materials are mostly selected for repair materials in the market, but physicochemical indexes such as siliceous heat-supplementing materials, refractoriness and the like are generally about 1400 ℃, firm bonding and combination can not be formed between the siliceous heat-supplementing materials and silica bricks at the damaged part of the kiln, and the quality of the repaired part can only be ensured for about 3 months at most, so that the repair material for the damaged part in the kiln, which has long service life after repair, needs to be developed.
Disclosure of Invention
The invention aims to overcome the defects and provide a zirconium-aluminum amorphous pouring hot-patching refractory material, which is used for repairing damaged parts of siliceous refractory bricks in a kiln, wherein the damaged parts can be repaired no matter in a heating state or a cooling state, and the durability service life after the repair is more than 12 months on average.
In order to solve the technical problems, the technical scheme of the invention is as follows:
a zirconium-aluminum amorphous pouring hot-patch refractory material is formed by mixing a zirconium-aluminum mixture and a silica sol solution; the zirconium-aluminum mixture comprises the following components in percentage by mass of 100 percent: 60-70% of zircon sand, 20-30% of fused quartz sand and 10-15% of silica powder.
Preferably, the mass ratio of the zirconium-aluminum mixture to the silica sol solution is 1: 0.125.
Preferably, the mass concentration of the silica sol in the silica sol solution is 40%; the silica sol belongs to colloidal solution, has no odor and toxicity, and the molecular formula can be expressed as mSiO2nH 2O; the silica sol has the following characteristics:
(1) the colloidal particles are fine (10-20nm) and have a relatively large specific surface area, so that the particles are colorless and transparent and do not influence the natural color of a covered object;
(2) the viscosity is low, and water can permeate through the places, so that the dispersion and permeability are very good when the water-soluble polyurethane is mixed with other substances;
(3) when the water of the silica sol is evaporated, the colloidal particles are firmly attached to the surface of an object, and silica bonding is formed among the particles, so that the silica sol is a good adhesive; as a refractory material binder, the composite material has the characteristics of strong binding power, high temperature resistance (1500-1600 ℃) and the like.
Preferably, the particle diameter of the zircon sand is less than or equal to 0.5 mm.
Preferably, the zircon sand comprises the following components by mass percent of 100 percent: 10-30% of zircon sand with the grain diameter of 0.3-0.5mm, 30-50% of zircon sand with the grain diameter of 0.2-0.3mm, 20-30% of zircon sand with the grain diameter of 0.088-0.2mm and 5-10% of zircon sand with the grain diameter of less than 0.088 mm.
Preferably, SiO of the fused silica sand2The content is more than 99 percent.
Preferably, the particle size of the silicon micropowder is 3-20 μm.
The invention also provides a using method of the zirconium-aluminum amorphous pouring hot-patch refractory material, which comprises the following steps:
zircon sand, fused silica sand, silica powder are mixed according to a certain proportion and are obtained the zirconium-aluminum mixture, add silica sol solution and stir the misce bene and obtain and pour the material, the template groove is made to the iron plate peripheral of pool wall, pour the material after pouring from the feed inlet of template groove, because pour the material can flow the environmental condition, the pouring material solidifies the solidification rapidly in the short time, bond together with original pool wall brick, form a whole, thereby the effect to the thickening of pool wall has been played externally, the pool wall thickness of kiln has been prolonged greatly, the whole life-span of extension kiln.
Compared with the prior art, the invention has the beneficial effects that:
(1) after the hot-patch refractory material is contacted with the surface of a damaged refractory brick, water can be quickly evaporated in a high-temperature environment of a kiln, and after the hot-patch refractory material is solidified and hardened, the hot-patch refractory material is firmly bonded with the refractory material of the damaged part, and the thermal shock stability of the hot-patch refractory material is greatly superior to that of the original refractory brick.
(2) When the hot-patch refractory material is used for hot maintenance of the kiln, the silica sol can be quickly solidified and solidified under a high-temperature condition to form the refractory material, so that the refractory material has the function of reinforcing the refractory brick body, and the service life of the kiln is prolonged.
(3) The invention adopts a pouring mode, has simple and convenient operation steps, good material fluidity, good thermal shock stability, reduces the labor intensity of maintenance workers operating in a high-temperature environment, repairs the kiln in time, ensures the safe operation of the kiln, saves energy, and is energy-saving and environment-friendly, and the moisture can be quickly solidified and solidified after being evaporated.
Detailed Description
The following further describes the embodiments of the present invention. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
A zirconium-aluminum amorphous pouring hot-patch refractory material is formed by mixing a zirconium-aluminum mixture and a silica sol solution according to the mass ratio of 1: 0.125; the zirconium-aluminum mixture comprises the following components in percentage by mass of 100 percent: 70% of zircon sand, 20% of fused quartz sand and 10% of silica powder;
wherein the mass concentration of the silica sol in the silica sol solution is 40 percent;
wherein, the zircon sand comprises the following components by mass percent of 100 percent: 20 percent of zircon sand with the grain diameter of 0.3-0.5mm, 50 percent of zircon sand with the grain diameter of 0.2-0.3mm, 20 percent of zircon sand with the grain diameter of 0.088-0.2mm and 10 percent of zircon sand with the grain diameter of less than 0.088 mm;
wherein the particle size of the silicon micropowder is 3 μm.
Example 2
A zirconium-aluminum amorphous pouring hot-patch refractory material is formed by mixing a zirconium-aluminum mixture and a silica sol solution according to the mass ratio of 1: 0.125; the zirconium-aluminum mixture comprises the following components in percentage by mass of 100 percent: 60% of zircon sand, 30% of fused quartz sand and 10% of silica powder;
wherein the mass concentration of the silica sol in the silica sol solution is 40 percent;
wherein, the zircon sand comprises the following components by mass percent of 100 percent: 10 percent of zircon sand with the grain diameter of 0.3-0.5mm, 50 percent of zircon sand with the grain diameter of 0.2-0.3mm, 30 percent of zircon sand with the grain diameter of 0.088-0.2mm and 10 percent of zircon sand with the grain diameter of less than 0.088 mm;
wherein the particle size of the silicon micropowder is 6 μm.
Example 3
A zirconium-aluminum amorphous pouring hot-patch refractory material is formed by mixing a zirconium-aluminum mixture and a silica sol solution according to the mass ratio of 1: 0.125; the zirconium-aluminum mixture comprises the following components in percentage by mass of 100 percent: 60% of zircon sand, 25% of fused quartz sand and 15% of silica powder;
wherein the mass concentration of the silica sol in the silica sol solution is 40 percent;
wherein, the zircon sand comprises the following components by mass percent of 100 percent: 30% of zircon sand with the grain diameter of 0.3-0.5mm, 30% of zircon sand with the grain diameter of 0.2-0.3mm, 30% of zircon sand with the grain diameter of 0.088-0.2mm and 10% of zircon sand with the grain diameter of less than 0.088 mm;
wherein the particle size of the silicon micropowder is 10 μm.
Example 4
A zirconium-aluminum amorphous pouring hot-patch refractory material is formed by mixing a zirconium-aluminum mixture and a silica sol solution according to the mass ratio of 1: 0.125; the zirconium-aluminum mixture comprises the following components in percentage by mass of 100 percent: 65% of zircon sand, 20% of fused quartz sand and 15% of silica powder;
wherein the mass concentration of the silica sol in the silica sol solution is 40 percent;
wherein, the zircon sand comprises the following components by mass percent of 100 percent: 25% of zircon sand with the grain diameter of 0.3-0.5mm, 50% of zircon sand with the grain diameter of 0.2-0.3mm, 20% of zircon sand with the grain diameter of 0.088-0.2mm and 5% of zircon sand with the grain diameter of less than 0.088 mm;
wherein the particle size of the silicon micropowder is 15 μm.
Example 5
A zirconium-aluminum amorphous pouring hot-patch refractory material is formed by mixing a zirconium-aluminum mixture and a silica sol solution according to the mass ratio of 1: 0.125; the zirconium-aluminum mixture comprises the following components in percentage by mass of 100 percent: 65% of zircon sand, 23% of fused quartz sand and 12% of silica powder;
wherein the mass concentration of the silica sol in the silica sol solution is 40 percent;
wherein, the zircon sand comprises the following components by mass percent of 100 percent: 30% of zircon sand with the grain diameter of 0.3-0.5mm, 40% of zircon sand with the grain diameter of 0.2-0.3mm, 25% of zircon sand with the grain diameter of 0.088-0.2mm and 5% of zircon sand with the grain diameter of less than 0.088 mm;
wherein the particle size of the silicon micropowder is 20 μm.
The zirconium-aluminum amorphous pouring hot-repair refractory materials prepared in the embodiments 1 to 4 are repaired respectively, and the specific repairing process is as follows:
an iron plate is used as a template groove at the periphery of the furnace tank wall, the pouring hot-patch refractory material prepared in the embodiment 1-4 is stirred into a liquid state, and is filled between the template groove and the tank wall after being poured from a peripheral opening, the pouring material is rapidly solidified and solidified in a high-temperature environment at the periphery of the furnace tank wall and is bonded with the original tank wall bricks to form a whole, so that the effect of thickening the tank wall is achieved at the outside, and the pouring and repairing are completed. And (3) carrying out performance test on the repaired refractory bricks, wherein the test results are as follows:
the data show that the pouring hot-patch refractory material has good mechanical properties, higher refractoriness under load, and good welding bonding rupture strength and compressive strength under high-temperature environment.
The foregoing is considered as illustrative of the preferred embodiments of the invention, but is made merely for the purpose of providing an understanding of the principles of the embodiments; meanwhile, for a person skilled in the art, according to the present embodiment, there may be a change in the specific implementation and application scope, and in summary, the present disclosure should not be construed as a limitation to the present invention.
Claims (6)
1. The utility model provides a zirconium aluminic matter unshaped pouring hot patching refractory material which characterized in that: is prepared by mixing a zirconium-aluminum mixture and a silica sol solution; the zirconium-aluminum mixture comprises the following components in percentage by mass of 100 percent: 60-70% of zircon sand, 20-30% of fused quartz sand and 10-15% of silica powder;
the zircon sand comprises the following components in percentage by mass of 100 percent: 10-30% of zircon sand with the grain diameter of 0.3-0.5mm, 30-50% of zircon sand with the grain diameter of 0.2-0.3mm, 20-30% of zircon sand with the grain diameter of 0.088-0.2mm and 5-10% of zircon sand with the grain diameter of less than 0.088 mm.
2. The amorphous zircon alumina cast hot-repair refractory of claim 1, wherein: the mass ratio of the zirconium-aluminum mixture to the silica sol solution is 1: 0.125.
3. the amorphous zircon alumina cast hot-repair refractory of claim 1, wherein: the mass concentration of the silica sol in the silica sol solution is 40%.
4. The amorphous zircon alumina cast hot-repair refractory of claim 1, wherein: the grain diameter of the zircon sand is less than or equal to 0.5 mm.
5. The amorphous zircon alumina cast hot-repair refractory of claim 1, wherein: SiO of the fused silica sand2The content is more than 99 percent.
6. The amorphous zircon alumina cast hot-repair refractory of claim 1, wherein: the particle size of the silicon micro powder is 3-20 μm.
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| CN112010537A (en) * | 2020-08-05 | 2020-12-01 | 武汉重远炉窑工程技术服务有限公司 | Refractory material suitable for glass kiln and preparation method thereof |
| CN112010659A (en) * | 2020-08-05 | 2020-12-01 | 武汉重远炉窑工程技术服务有限公司 | Magnesia-alumina spinel refractory material and preparation method thereof |
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| CN101407424A (en) * | 2007-10-08 | 2009-04-15 | 联合矿产（天津）有限公司 | Low-dust unshaped refractory |
| CN102633513A (en) * | 2012-05-08 | 2012-08-15 | 中国钢研科技集团有限公司 | Fast-baking explosion proof type refractory castable for blast furnace iron runner |
| CN103467114A (en) * | 2013-08-22 | 2013-12-25 | 长兴攀江冶金材料有限公司 | Silica sol compound castable |
| CN104961472A (en) * | 2015-05-29 | 2015-10-07 | 鞍山市永恒特种耐火材料制造有限公司 | Rapid repairing material prepared from waste high-aluminum brick and preparation method thereof |
| CN106513655A (en) * | 2016-11-07 | 2017-03-22 | 中车齐齐哈尔车辆有限公司 | Manufacturing method for ladle filler sand and filling method for filling land filler sand into steel ladle |
| CN107285747A (en) * | 2017-06-15 | 2017-10-24 | 郑州威源新材料有限公司 | A kind of production technology of fused alumina zirconia abrasive material |
| CN108238808A (en) * | 2018-04-02 | 2018-07-03 | 武汉重远炉窑工程技术服务有限公司 | Siliceous amorphous refractory hot-patch material |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101407424A (en) * | 2007-10-08 | 2009-04-15 | 联合矿产（天津）有限公司 | Low-dust unshaped refractory |
| CN102633513A (en) * | 2012-05-08 | 2012-08-15 | 中国钢研科技集团有限公司 | Fast-baking explosion proof type refractory castable for blast furnace iron runner |
| CN103467114A (en) * | 2013-08-22 | 2013-12-25 | 长兴攀江冶金材料有限公司 | Silica sol compound castable |
| CN104961472A (en) * | 2015-05-29 | 2015-10-07 | 鞍山市永恒特种耐火材料制造有限公司 | Rapid repairing material prepared from waste high-aluminum brick and preparation method thereof |
| CN106513655A (en) * | 2016-11-07 | 2017-03-22 | 中车齐齐哈尔车辆有限公司 | Manufacturing method for ladle filler sand and filling method for filling land filler sand into steel ladle |
| CN107285747A (en) * | 2017-06-15 | 2017-10-24 | 郑州威源新材料有限公司 | A kind of production technology of fused alumina zirconia abrasive material |
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