CN106747525A - A kind of kilneye high-performance composite refractory - Google Patents

A kind of kilneye high-performance composite refractory Download PDF

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Publication number
CN106747525A
CN106747525A CN201710085631.1A CN201710085631A CN106747525A CN 106747525 A CN106747525 A CN 106747525A CN 201710085631 A CN201710085631 A CN 201710085631A CN 106747525 A CN106747525 A CN 106747525A
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powder
kilneye
granularity
performance
mesh
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刘春乐
刘勇
程殿勇
徐彬
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Beijing Sea Jincheng Refractories Co Ltd
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Beijing Sea Jincheng Refractories Co Ltd
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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
    • C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
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  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Products (AREA)

Abstract

The invention discloses a kind of kilneye high-performance composite refractory, count by weight percentage, constitute and be：Plate diamond spar 30 44%；Pink fused alumina 12 17%；Composite corindon powder 7 12%；Andalusite 10 15%；Alumina powder 5 10%；Zircon sand 3 8%；Kyanite 2 4%；Silicon powder 1 3%；Nano carborundum powder 3 7%；Pure calcium aluminate cement 3 6%；Carbonic acid zirconium powder 4 6%；Silicic acid zinc powder 1 2%；Additive 1 2%；Additional heat-resistant steel fiber 0.3 0.5%；Dispersant 0.1 0.2%.Beneficial effects of the present invention：It is improved by refractory material component of the prior art, using plate diamond spar, pink fused alumina and composite corindon powder as the component of aggregate, and add the powders such as nano carborundum powder, zircon sand, kyanite, compound additive, carbonic acid zirconium powder, the additional heat-resistant steel fiber of zinc silicate pulvis, there is resulting kilneye high-performance composite refractory quick baking not burst, anti-wear performance is good under high temperature, resists the performance of the erosion of the clinker atmosphere of different raw material generations.

Description

A kind of kilneye high-performance composite refractory
Technical field
The present invention relates to fire resisting material field, it particularly relates to a kind of kilneye high-performance composite refractory.
Background technology
The positions such as new dry cement production technology rotary kiln kilneye in high temperature, clinker due to washing away, wearing and tearing, urgency Under the rugged environments such as cold anxious heat, and the privileged sites in port, easily produce mechanically deform, peel off, therefore, to fire proofed wood Material proposes requirement higher.Castable refractory of the prior art is because thermal shock resistance is poor, high temperature hot strength is low, material Easily occurs explosion in baking process again, anti-wear performance is poor, to clinker atmosphere（Alkaline atmosphere）Sensitivity, alkaline erosion performance Difference, usage cycles are short, and kilneye position is only 4~6 months or so, castable there are problems that peeling,.How kiln discharge is developed The high-performance refractory castable that uses of oral area position, makes its service life can be with clinkering zone refractory brick life up to 10~12 months Match, as the technical problem that current each producer is eager to solve.
For the problem in correlation technique, effective solution is not yet proposed at present.
The content of the invention
For the above-mentioned technical problem in correlation technique, the present invention proposes a kind of kilneye high-performance composite refractory, tool There is quick baking not burst, anti-wear performance is good under high temperature, resist the spy of the erosion of the clinker atmosphere of different raw material generations Property, usage cycles can reach more than 14 months, can be matched with refractory brick life with clinkering zone.
To realize above-mentioned technical purpose, the technical proposal of the invention is realized in this way：
A kind of kilneye high-performance composite refractory, count by weight percentage, constitutes and is：Plate diamond spar 30-44%；Pink fused alumina 12-17%；Composite corindon powder 7-12%；Andalusite 10-15%；Alumina powder 5-10%；Zircon sand 3-8%；Kyanite 2-4%；Silicon Micro mist 1-3%；Nano carborundum powder 3-7%；Pure calcium aluminate cement 3-6%；Carbonic acid zirconium powder 4-6%；Silicic acid zinc powder 1-2%；Additive 1- 2%；Additional heat-resistant steel fiber 0.3-0.5%；Dispersant 0.1-0.2%.
Further, count by weight percentage, the additive composition is:Aluminium powder 60-80%；Explosion-proof fiber 10-20%； Azodicarbonamide 10-20%.
Further, the composite corindon powder compares 1 for the composite corindon powder by magnesia powder and schmigel according to weight:9 Mix.
Further, the dispersant is any one in sodium tripolyphosphate, citric acid and Sodium Polyacrylate or two Mixed according to arbitrary proportion more than kind.
Further, the raw material meet following index：Plate diamond spar granularity is 1-7 mesh;Pink fused alumina granularity is 325 Mesh；Composite corindon Powder Particle Size is 325 mesh；Andalusite granularity is 1-2mm；1 μm of alumina powder granularity ＜；Zircon sand granularity is 200 mesh；Kyanite granularity is 80-120 mesh;Silicon powder granularity is 0.1-0.3 μm;Nanometer silicon carbide Powder Particle Size is 40 μm；Aluminic acid The pure specific surface area 5500g/cm of calcium cement2；10 μm of zirconium carbonate Powder Particle Size ＜.
Traditional refractory aggregate is divided into clayey, High-Alumina, corundum mullite rock and high-alumina lightening etc., and the present invention is by weight Percentage is calculated, using the plate diamond spar of 30-44%, the pink fused alumina of 12-17% and 7-12% composite corindon powder as refractory aggregate. Wherein, plate diamond spar be it is a kind of it is pure, without such as MgO, B2O3Contraction is burnt till etc. any additive thoroughly to sinter just Jade, with the thick, well-developed α-Al of crystallization2O3Crystal structure, Al2O3Content more than 99%, en plaque crystal knot Structure, stomata is small and holds one's breath that hole is more and the porosity is about the same with electro-corundum, and purity is high, and volume stability is good, minimum weight Burn and shrink.Wherein, pink fused alumina has the performance of the erosion that can resist clinker atmosphere.Wherein, composite corindon powder uses magnesium Emery dust and schmigel are mixed, and the coating after this composite aggregate sintering generates magnesium aluminate spinel (MgAl2O4), with good Good anti-erosion, burn into slag resistance is good, abrasion resistance, good thermal shock stability, the performance characteristics such as high temperature resistant.
Andalusite can be changed into mullite when being heated to 1300 DEG C, and mullite is a kind of senior refractory material, in reaction During have a slight expansion, the high-temperature shrinkage of castable is offset, so as to improve the thermal shock performance and anti-wear performance of refractory material.
Kyanite has chemical corrosion resistance strong, and thermal shock mechanical strength is big, the characteristic such as expanded by heating is irreversible, and zircon sand is Traditional refractory material, count by weight percentage, adds the kilneye fire resistant material of the zircon sand of the kyanite and 3-8% of 2-4% Also do not burst in the case of quick baking.
Pure calcium aluminate cement fills alumina powder as the accelerator for hardening of kilneye fire resistant material, and clay castable refractory is mixed When closing stirring, two kinds of materials are added simultaneously, ensure there is good mobility in shaping, in the time for limiting after shaping, energy Castable refractory is set to obtain enough intensity.
Count by weight percentage, silicon powder 1-3% is added, for the hole that filling concrete particle is shown in, kilneye is significantly improved The resistance to compression of refractory material, anti-folding, impervious, anti-corrosion, shock resistance and anti-wear performance.
Nano carborundum powder is commonly used in as metallurgy, chemical industry are mechanical in the prior art, is used in the industry such as space flight and the energy Sliding bearing, liquid fuel nozzle, crucible, high-power high-frequency rate mould, the aspect such as semiconductor components and devices, by weight percentage Calculate, the nano carborundum powder of 3-7% added in kilneye fire resistant material, improve refractory material oxidation resistant ability at high temperature, Resist the erosion of the clinker atmosphere of different raw material generations.On the other hand, the refractory material of nano carborundum powder is added also With stable chemical performance, thermal conductivity factor is high, thermal coefficient of expansion is small, anti-wear performance is good the features such as.
Zirconium carbonate is decomposed to form the oxide of high activity zirconium with superperformance, and the micropore formed in decomposable process, all Be conducive to improving the thermal shock resistance of refractory material, improve corrosion resistance, it is to avoid castable occurs the phenomenon such as ftracture, drop.
It is brilliant that the refractory material of addition zinc silicate and alumina powder can generate performance preferably original position aluminium zinc point in use Stone, improves the structural homogenity of castable, improves the anti acid alkali performance energy of castable, chemical resistance of concrete performance.
The addition of dispersant is for reducing the water for specifically being used in work progress, convenient construction operation.
Additional heat-resistant steel fiber is used for the thermal shock performance of further lifting castable refractory, it is to avoid castable generation cracking, The phenomenon such as drop.
The present invention also provides a kind of specific additive composition, count by weight percentage, the compound additive composition For：Aluminium powder 60-80%；Explosion-proof fiber 10-20%；Azodicarbonamide 10-20%.This additive can make finished product refractory material With certain explosion-proof performance.
Beneficial effects of the present invention：It is improved by refractory material component of the prior art, with plate diamond spar, chromium Corundum and composite corindon powder and add nano carborundum powder, zircon sand, kyanite, compound additive, carbon as the component of aggregate The powders such as sour zirconium powder, the additional heat-resistant steel fiber of zinc silicate pulvis, resulting kilneye high-performance composite refractory has quick Baking does not burst, and anti-wear performance is good under high temperature, resists the performance of the erosion of the clinker atmosphere of different raw material generation, and existing Some kilneye fire resistant materials are compared, and usage cycles are up to more than 14 months, can be matched with refractory brick life with clinkering zone.
Specific embodiment
Kilneye high-performance composite refractory of the invention is described in further detail below in conjunction with specific embodiment, It is only used for explaining the present invention that be not used in the limitation present invention, specific raw material involved in the present invention are commercially obtained ：
Embodiment one：
Take plate diamond spar 34Kg；Pink fused alumina 14Kg；Composite corindon powder 8Kg；Andalusite 12Kg；Alumina powder 7Kg；Zircon sand 4Kg；Kyanite 3Kg；Silicon powder 2Kg；Nano carborundum powder 4Kg；Pure calcium aluminate cement 4Kg；Carbonic acid zirconium powder 5Kg；Silicic acid zinc powder 1.3Kg；Additive 1.3Kg；Additional heat-resistant steel fiber 0.3Kg；Dispersant 0.1Kg is obtained after being stirred in mixing plant To finished product.
Wherein, raw material meet following index：Plate diamond spar granularity is 1-7 mesh;Pink fused alumina granularity is 325 mesh；It is compound firm Beautiful Powder Particle Size is 325 mesh；Andalusite granularity is 1-2mm；1 μm of alumina powder granularity ＜；Zircon sand granularity is 200 mesh；Aquamaine Stone granularity is 80-120 mesh;Silicon powder granularity is 0.1-0.3 μm;Nanometer silicon carbide Powder Particle Size is 40 μm；The pure ratio of aluminous cement Surface area 5500g/cm2；10 μm of zirconium carbonate Powder Particle Size ＜.
Wherein, the common 1.3Kg of compound additive, constitutes and is：Aluminium powder 1.04Kg；Explosion-proof fiber 0.13Kg；Azodicarbonamide 0.13Kg。
Wherein, all sodium tripolyphosphates of dispersant 0.1Kg.
After measured, the physical property of finished product meets：Explosion-proof temperature：1200℃；110 DEG C × 24h bulk densities are：2.8g/ cm3；110 DEG C × 24h rupture strengths are：14.2MPa；1450 DEG C × 3h rupture strengths are：23.5MPa；110 DEG C × 24h is pressure-resistant Intensity is：123.2MPa；1450 DEG C × 3h compressive resistances are：196.7MPa.
Embodiment two：
Take plate diamond spar 44Kg；Pink fused alumina 13Kg；Composite corindon powder 7Kg；Andalusite 10Kg；Alumina powder 5Kg；Zircon sand 3Kg；Kyanite 3Kg；Silicon powder 1Kg；Nano carborundum powder 3Kg；Pure calcium aluminate cement 3Kg；Carbonic acid zirconium powder 4Kg；Silicic acid zinc powder 1.6Kg；Additive 1.8Kg；Additional heat-resistant steel fiber 0.4Kg；Dispersant 0.2Kg is obtained after being stirred in mixing plant To finished product.
Wherein, raw material meet following index：Plate diamond spar granularity is 1-7 mesh;Pink fused alumina granularity is 325 mesh；It is compound firm Beautiful Powder Particle Size is 325 mesh；Andalusite granularity is 1-2mm；1 μm of alumina powder granularity ＜；Zircon sand granularity is 200 mesh；Aquamaine Stone granularity is 80-120 mesh;Silicon powder granularity is 0.1-0.3 μm;Nanometer silicon carbide Powder Particle Size is 40 μm；The pure ratio of aluminous cement Surface area 5500g/cm2；10 μm of zirconium carbonate Powder Particle Size ＜.
Wherein, the common 1.8Kg of compound additive, constitutes and is：Aluminium powder 1.26Kg；Explosion-proof fiber 0.36Kg；Azodicarbonamide 0.18Kg。
Wherein, the common 0.1Kg of dispersant, constitutes and is：Citric acid 0.05Kg;Sodium Polyacrylate 0.05Kg.
After measured, the physical property of finished product meets：Explosion-proof temperature：1200 DEG C, there are slight sound and corner in experimentation Damage, flawless；110 DEG C × 24h bulk densities are：2.78g/cm3；110 DEG C × 24h rupture strengths are：12.3MPa；1450 DEG C × 3h rupture strengths are：16.5MPa；110 DEG C × 24h compressive resistances are：110.3MPa；1450 DEG C × 3h compressive resistances are： 135.2MPa。
Embodiment three：
Take plate diamond spar 30Kg；Pink fused alumina 15Kg；Composite corindon powder 10Kg；Andalusite 13Kg；Alumina powder 9Kg；Zircon sand 6Kg；Kyanite 2Kg；Silicon powder 1Kg；Nano carborundum powder 3Kg；Pure calcium aluminate cement 4Kg；Carbonic acid zirconium powder 4Kg；Silicic acid zinc powder 1.2Kg；Additive 1.3Kg；Additional heat-resistant steel fiber 0.4Kg；Dispersant 0.1Kg is obtained after being stirred in mixing plant To finished product.
Wherein, raw material meet following index：Plate diamond spar granularity is 1-7 mesh;Pink fused alumina granularity is 325 mesh；It is compound firm Beautiful Powder Particle Size is 325 mesh；Andalusite granularity is 1-2mm；1 μm of alumina powder granularity ＜；Zircon sand granularity is 200 mesh；Aquamaine Stone granularity is 80-120 mesh;Silicon powder granularity is 0.1-0.3 μm;Nanometer silicon carbide Powder Particle Size is 40 μm；The pure ratio of aluminous cement Surface area 5500g/cm2；10 μm of zirconium carbonate Powder Particle Size ＜.
Wherein, the common 1.3Kg of compound additive, constitutes and is：Aluminium powder 0.78Kg；Explosion-proof fiber 0.26Kg；Azodicarbonamide 0.26Kg。
Wherein, the common 0.1Kg of dispersant, constitutes and is：Sodium tripolyphosphate 0.03Kg;Citric acid 0.03Kg;Sodium Polyacrylate 0.04Kg。
After measured, the physical property of finished product meets：Explosion-proof temperature：1200 DEG C, voiceless sound in experimentation, corner is intact； 110 DEG C × 24h bulk densities are：2.82g/cm3；110 DEG C × 24h rupture strengths are：13.5MPa；The anti-foldings of 1450 DEG C × 3h are strong Spend and be：15.6MPa；110 DEG C × 24h compressive resistances are：115.2MPa；1450 DEG C × 3h compressive resistances are：125.1MPa.

Claims (5)

1. a kind of kilneye high-performance composite refractory, it is characterised in that count by weight percentage, constitutes and is：Plate diamond spar 30-44%；Pink fused alumina 12-17%；Composite corindon powder 7-12%；Andalusite 10-15%；Alumina powder 5-10%；Zircon sand 3-8%； Kyanite 2-4%；Silicon powder 1-3%；Nano carborundum powder 3-7%；Pure calcium aluminate cement 3-6%；Carbonic acid zirconium powder 4-6%；Silicic acid zinc powder 1-2%；Additive 1-2%；Additional heat-resistant steel fiber 0.3-0.5%；Dispersant 0.1-0.2%.
2. a kind of kilneye high-performance composite refractory according to claim 1, it is characterised in that by weight percentage Calculate, the additive composition is:Aluminium powder 60-80%；Explosion-proof fiber 10-20%；Azodicarbonamide 10-20%.
3. a kind of kilneye high-performance composite refractory according to claim 1, it is characterised in that the composite corindon powder Compare 1 according to weight by magnesia powder and schmigel:9 mix.
4. a kind of kilneye high-performance composite refractory according to claim 1, it is characterised in that the dispersant is three In polyphosphate sodium, citric acid and Sodium Polyacrylate any one or two or more mixed according to arbitrary proportion.
5. a kind of kilneye high-performance composite refractory according to claim 1, it is characterised in that the raw material meet Following index：Plate diamond spar granularity is 1-7 mesh;Pink fused alumina granularity is 325 mesh；Composite corindon Powder Particle Size is 325 mesh；Andalusite grain It is 1-2mm to spend；1 μm of alumina powder granularity ＜；Zircon sand granularity is 200 mesh；Kyanite granularity is 80-120 mesh;Silicon powder grain Spend is 0.1-0.3 μm;Nanometer silicon carbide Powder Particle Size is 40 μm；The pure specific surface area 5500g/cm of aluminous cement2；Zirconium carbonate powder 10 μm of ＜ of degree.
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CN108373337A (en) * 2018-03-05 2018-08-07 北京利尔高温材料股份有限公司 A kind of wear-resisting gunning refractory of blast furnace lining
CN109503182A (en) * 2018-12-24 2019-03-22 中国有色集团晋铝耐材有限公司 It is a kind of without siliceous gasification furnace dedicated pouring material and preparation method thereof
CN110563452A (en) * 2019-09-02 2019-12-13 河南好运祥耐材有限公司 Wear-resistant ceramic coating for blast furnace slag runner
CN111763092A (en) * 2020-06-17 2020-10-13 林国强 Anti-slagging high-temperature wear-resistant composite material and preparation method thereof
CN111908904A (en) * 2020-07-30 2020-11-10 海城市金福锋科技有限公司 Stone castable for kiln and preparation method thereof
CN111943718A (en) * 2020-08-25 2020-11-17 洛阳科创新材料股份有限公司 Porous ceramic part for metal liquid purifier and preparation method thereof
CN113683426A (en) * 2021-07-29 2021-11-23 浙江自立高温科技股份有限公司 Baking-free high-strength metal ceramic composite material and preparation method and application thereof
CN114057500A (en) * 2021-12-24 2022-02-18 长兴兴鹰新型耐火建材有限公司 Quick-drying type anti-explosion wear-resistant castable special for grate cooler and production method thereof
CN114873996A (en) * 2022-07-12 2022-08-09 中南大学 Slag-corrosion-resistant ladle castable and preparation method thereof
US11492529B2 (en) * 2018-01-08 2022-11-08 Laticrete International, Inc. Energy efficient cementitious mortars

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11492529B2 (en) * 2018-01-08 2022-11-08 Laticrete International, Inc. Energy efficient cementitious mortars
CN108373337A (en) * 2018-03-05 2018-08-07 北京利尔高温材料股份有限公司 A kind of wear-resisting gunning refractory of blast furnace lining
CN109503182A (en) * 2018-12-24 2019-03-22 中国有色集团晋铝耐材有限公司 It is a kind of without siliceous gasification furnace dedicated pouring material and preparation method thereof
CN110563452A (en) * 2019-09-02 2019-12-13 河南好运祥耐材有限公司 Wear-resistant ceramic coating for blast furnace slag runner
CN111763092A (en) * 2020-06-17 2020-10-13 林国强 Anti-slagging high-temperature wear-resistant composite material and preparation method thereof
CN111908904A (en) * 2020-07-30 2020-11-10 海城市金福锋科技有限公司 Stone castable for kiln and preparation method thereof
CN111943718A (en) * 2020-08-25 2020-11-17 洛阳科创新材料股份有限公司 Porous ceramic part for metal liquid purifier and preparation method thereof
CN113683426A (en) * 2021-07-29 2021-11-23 浙江自立高温科技股份有限公司 Baking-free high-strength metal ceramic composite material and preparation method and application thereof
CN114057500A (en) * 2021-12-24 2022-02-18 长兴兴鹰新型耐火建材有限公司 Quick-drying type anti-explosion wear-resistant castable special for grate cooler and production method thereof
CN114873996A (en) * 2022-07-12 2022-08-09 中南大学 Slag-corrosion-resistant ladle castable and preparation method thereof

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