CN106927838A - A kind of wear-resisting anti-explosion refractory castable of Stainless-steel fibre - Google Patents
A kind of wear-resisting anti-explosion refractory castable of Stainless-steel fibre Download PDFInfo
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- CN106927838A CN106927838A CN201710085688.1A CN201710085688A CN106927838A CN 106927838 A CN106927838 A CN 106927838A CN 201710085688 A CN201710085688 A CN 201710085688A CN 106927838 A CN106927838 A CN 106927838A
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- powder
- explosion
- steel fibre
- granularity
- wear
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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
Abstract
The present invention relates to a kind of wear-resisting anti-explosion refractory castable of Stainless-steel fibre, count by weight percentage, constitute and be：Diamond dust 25 37%；Mullite powder 8 12%；Plate diamond spar powder 8 12%；Alumina powder 6 10%；Silicon powder 3 7%；Pure calcium aluminate cement 5 8%；Steel fibre 1 4%；Kyanite 5 8%;Aluminium titanates 3 5%;Chromium oxide 3 5%;Magnesium aluminate spinel 10 15%;Composite anti-explosion agent 1 2%；Water reducer 0.5 1%；Antioxidant 0.5 1%.Beneficial effects of the present invention：It is improved by mould material component of the prior art, adds steel fibre, composite anti-explosion agent and antioxidant etc., so that resulting castable is compared with common high alumina castable, it is not easy to burst, anti-wear performance is good, and scour resistance is strong.
Description
Technical field
The present invention relates to cement clinker production line castable, it particularly relates to a kind of Stainless-steel fibre is wear-resisting explosion-proof
Castable.
Background technology
At present, most of castable on cement clinker production line is common high alumina castable.Common high alumina casting
Material thermal shock performance and scour resistance are poor, and so as to have a strong impact on service life, it is special that volume is influenceed after-contraction to change by high temperature
Not big, material is easy to explosion in initial baking, and anti-wear performance is poor, and very big inconvenience is brought to production.Therefore, in order to more preferable
Meet to the requirements at the higher level of castable performance, it is necessary to the aspect such as anti-thermal shock, antiscour, volume stability to common castable is entered
Row is improved.
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 wear-resisting anti-explosion refractory castable of Stainless-steel fibre,
The technical problem that material bursts in the case where clinker atmosphere shock environment is run into is can solve the problem that, the bulk strength and antiscour of material is improved
Performance.
To realize above-mentioned technical purpose, the technical proposal of the invention is realized in this way：
A kind of wear-resisting anti-explosion refractory castable of Stainless-steel fibre, count by weight percentage, constitutes and is：Diamond dust 25-37%；Mullite
Powder 8-12%；Plate diamond spar powder 8-12%；Alumina powder 6-10%；Silicon powder 3-7%；Pure calcium aluminate cement 5-8%；Steel fibre 1-
4%；Kyanite 5-8%;Aluminium titanates 3-5%;Chromium oxide 3-5%;Magnesium aluminate spinel 10-15%;Composite anti-explosion agent 1-2%；Water reducer
0.5-1%；Antioxidant 0.5-1%.
Further, count by weight percentage, the composite anti-explosion agent composition is：Aluminium powder 60-80%；Explosion-proof fiber 10-
20%；Azodicarbonamide 10-20%.
Further, the water reducer is sodium tripolyphosphate.
Further, the antioxidant is boron carbide.
Further, the raw material meet following index：Diamond dust granularity is 1-8mm;Mullite powder granularity≤1mm；
Plate diamond spar Powder Particle Size is 325 mesh；Alumina powder granularity is 1-3 μm；Silicon powder granularity is 0.1-0.3 μm；Pure calcium aluminate water
Mud specific surface area 5500g/cm2;The a diameter of 0.2-0.6mm of steel fibre, length is 20mm;Kyanite granularity≤0.2mm;Aluminium titanates
Granularity≤0.5mm;Chromium oxide granularity≤1mm;Magnesium aluminate spinel granularity≤12mm.
Count by weight percentage, the present invention is from diamond dust 25-37%, mullite powder 8-12% and plate diamond spar powder 8-
12% used as castable aggregate, and substitution traditionally makees aggregate using superfine bauxite.Diamond dust, i.e. carborundum, it is chemically
Can stabilization, high with thermal conductivity factor, thermal coefficient of expansion is small, the features such as density and hardness is very big；Plate diamond spar be it is a kind of it is pure,
Without such as MgO, B2O3Contraction thoroughly alundum is burnt till etc. any additive, with thick, the well-developed α of crystallization-
Al2O3Crystal structure, Al2O3Content more than 99%, en plaque crystal structure, stomata is small and hole of holding one's breath is more and the porosity with
Electro-corundum is about the same, and purity is high, and volume stability is good, and minimum reheating is shunk, and is used to the resistance to material for producing or castable is high
There is good thermal shock resistance and bending strength after temperature treatment；But the sintering character of corundum and carborundum is poor, only with
Corundum and carborundum show that the resistance to elevated temperatures of castable finished product is poor as aggregate, on the basis of carborundum and schmigel
Being equipped with mullite powder can significantly increase finished product antioxygenic property at high temperature, also, mullite has high temperature resistant, heat in itself
The features such as expansion river health chemical erosion is strong.Drawn as castable aggregate using diamond dust, mullite powder and plate diamond spar
Toughness of products is strong, can well improve the intensity and scour resistance of finished product, and antioxygenic property is strong under high temperature, is difficult explosion,
The service life high of castable can significantly be put forward.
Pure calcium aluminate cement fills alumina powder, clay castable refractory as the accelerator for hardening of wear-resisting anti-explosion refractory castable
During mixing, two kinds of materials are added simultaneously, ensure there is good mobility in shaping, in the time for limiting after shaping,
Castable can be made to obtain enough intensity.
Count by weight percentage, the present invention addition steel fibre 1-4%, compared with existing common high alumina castable, with compared with
Compressive resistance high and rupture strength, and bulk density is big, it is steady with good thermal shock resistance, scour resistance and volume
It is qualitative.
Silicon powder has micron-sized particle diameter, and unbodied structure the features such as active high, can fill the exclusion of castable water
The hole for leaving afterwards, improves the bulk density of castable and reduces apparent porosity, further, improves the intensity and height of castable
Warm performance.Meanwhile, silicon powder forms colloid in water, can increase the mobility of castable.
Kyanite also has that resist chemical performance is strong, the characteristic such as thermal shock mechanical strength is big, raw at a high temperature of 1300 DEG C
It is Al into mullite2O3One SiO2The binary compound of unique stabilization in system.The castable for adding kyanite has quick baking
Unburstable characteristic.
Aluminium titanates is a kind of low material of thermal coefficient of expansion, can improve castable explosion-proof performance at high temperature.
Chromium oxide can be combined together well with corundum in granules at high temperature, Membranes On Alumina Particles Surface meeting and chromium oxide
Solid solution phenomenon is produced, therefore the addition of chromium oxide can promote the sintering of corundum, improve the drying performance of castable, reduce line change
Rate.
The castable for adding magnesium aluminate spinel has a good corrosion resistance, abrasion resistance, good thermal shock stability and
With good resistance to flaking.
Count by weight percentage, present invention addition composite anti-explosion agent 1-2%, makes castable finished product run into clinker
Do not burst under atmosphere shock environment.
The present invention also provides a kind of specific composite anti-explosion agent composition, count by weight percentage, the compound additive
Constitute and be：Metallic aluminium powder 60-80%, hollow tubular fiber 10-20%, azodicarbonamide 10-20%.
Because carbon containing castable quality is influenceed very big by the oxidation of carbon, in order to the oxidation for suppressing carbon is needed to refractory material
Middle addition antioxidant, wherein, silicon powder has certain antioxidant action in itself, herein on, add boron carbide（B4C）Energy
Enough harvest more preferable antioxidant effect.
Beneficial effects of the present invention：It is improved by mould material component of the prior art, adds steel fibre, answers
Anti-knock agent and antioxidant etc. are closed, so that resulting castable is compared with common high alumina castable, it is not easy to burst,
Anti-wear performance is good, and scour resistance is strong.
Specific embodiment
The wear-resisting anti-explosion refractory castable of Stainless-steel fibre of the invention is made further to retouch in detail below in conjunction with specific embodiment
State, it is only used for explaining the present invention, be not used in the limitation present invention, it is normal that the various raw material being previously mentioned in embodiment are this area
See material, can obtain from commercial channels：
Embodiment one：
Diamond dust 30Kg；Mullite powder 8Kg；Plate diamond spar powder 9Kg；Alumina powder 6Kg；Silicon powder 5Kg；Pure calcium aluminate cement
6Kg；Steel fibre 3Kg；Kyanite 6Kg;Aluminium titanates 4Kg;Chromium oxide 5Kg;Magnesium aluminate spinel 15Kg;Composite anti-explosion agent 1Kg；Diminishing
Agent 1Kg；Antioxidant 1Kg.
Wherein, raw material meet following index：Diamond dust granularity is 1-8mm;Mullite powder granularity≤1mm；Plate diamond spar
Powder Particle Size is 325 mesh；Alumina powder granularity is 1-3 μm；Silicon powder granularity is 0.1-0.3 μm；Pure calcium aluminate cement specific surface
Product 5500g/cm2;The a diameter of 0.2-0.6mm of steel fibre, length is 20mm;Kyanite granularity≤0.2mm;Metatitanic acid aluminium particle size≤
0.5mm;Chromium oxide granularity≤1mm;Magnesium aluminate spinel granularity≤12mm.
Wherein, the common 1Kg of composite anti-explosion agent, constitutes and is：Aluminium powder 0.8Kg；Explosion-proof fiber 0.1Kg；Azodicarbonamide
0.1Kg。
The wherein common 1Kg of water reducer, it is sodium tripolyphosphate to constitute.
The wherein common 1Kg of antioxidant, it is boron carbide to constitute.
After measured, the physical property of finished product meets：110 DEG C × 24h bulk densities are：2.7g/cm3；110 DEG C × 24h resists
Rolling over intensity is：14.5MPa；1250 DEG C × 3h rupture strengths are：19.3MPa；110 DEG C × 24h compressive resistances are：145.2MPa；
1250 DEG C × 3h compressive resistances are：186.3MPa；1250 DEG C × 3h Linear change rates are：-0.02.
Embodiment two：
Diamond dust 25Kg；Mullite powder 11Kg；Plate diamond spar powder 11Kg；Alumina powder 8Kg；Silicon powder 4Kg；Pure calcium aluminate water
Mud 7Kg；Steel fibre 2Kg；Kyanite 7Kg;Aluminium titanates 4Kg;Chromium oxide 5Kg;Magnesium aluminate spinel 12Kg;Composite anti-explosion agent 2Kg；Subtract
Aqua 1Kg；Antioxidant 1Kg.
Wherein, raw material meet following index：Diamond dust granularity is 1-8mm;Mullite powder granularity≤1mm；Plate diamond spar
Powder Particle Size is 325 mesh；Alumina powder granularity is 1-3 μm；Silicon powder granularity is 0.1-0.3 μm；Pure calcium aluminate cement specific surface
Product 5500g/cm2;The a diameter of 0.2-0.6mm of steel fibre, length is 20mm;Kyanite granularity≤0.2mm;Metatitanic acid aluminium particle size≤
0.5mm;Chromium oxide granularity≤1mm;Magnesium aluminate spinel granularity≤12mm.
Wherein, the common 2Kg of composite anti-explosion agent, constitutes and is：Aluminium powder 1.4Kg；Explosion-proof fiber 0.3Kg；Azodicarbonamide
0.3Kg。
The wherein common 1Kg of water reducer, it is sodium tripolyphosphate to constitute.
The wherein common 1Kg of antioxidant, it is boron carbide to constitute.
After measured, the physical property of finished product meets：110 DEG C × 24h bulk densities are：2.75g/cm3；110 DEG C × 24h resists
Rolling over intensity is：16.3MPa；1250 DEG C × 3h rupture strengths are：20.6MPa；110 DEG C × 24h compressive resistances are：175.2MPa；
1250 DEG C × 3h compressive resistances are：186.3MPa；1250 DEG C × 3h Linear change rates are：-0.015.
Embodiment three：
Diamond dust 37Kg；Mullite powder 8Kg；Plate diamond spar powder 9Kg；Alumina powder 7Kg；Silicon powder 6Kg；Pure calcium aluminate cement
5Kg；Steel fibre 1Kg；Kyanite 6Kg;Aluminium titanates 5Kg;Chromium oxide 3Kg;Magnesium aluminate spinel 10Kg;Composite anti-explosion agent 2Kg；Diminishing
Agent 0.5Kg；Antioxidant 0.5Kg.
Wherein, raw material meet following index：Diamond dust granularity is 1-8mm;Mullite powder granularity≤1mm；Plate diamond spar
Powder Particle Size is 325 mesh；Alumina powder granularity is 1-3 μm；Silicon powder granularity is 0.1-0.3 μm；Pure calcium aluminate cement specific surface
Product 5500g/cm2;The a diameter of 0.2-0.6mm of steel fibre, length is 20mm;Kyanite granularity≤0.2mm;Metatitanic acid aluminium particle size≤
0.5mm;Chromium oxide granularity≤1mm;Magnesium aluminate spinel granularity≤12mm.
Wherein, the common 2Kg of composite anti-explosion agent, constitutes and is：Aluminium powder 1.2Kg；Explosion-proof fiber 0.4Kg；Azodicarbonamide
0.4Kg。
The wherein common 0.5Kg of water reducer, it is sodium tripolyphosphate to constitute.
The wherein common 0.5Kg of antioxidant, it is boron carbide to constitute.
After measured, the physical property of finished product meets：110 DEG C × 24h bulk densities are：2.78g/cm3；110 DEG C × 24h resists
Rolling over intensity is：17.8MPa；1250 DEG C × 3h rupture strengths are：23.6MPa；110 DEG C × 24h compressive resistances are：193.2MPa；
1250 DEG C × 3h compressive resistances are：210.9MPa；1250 DEG C × 3h Linear change rates are：-0.09.
Claims (5)
1. the wear-resisting anti-explosion refractory castable of a kind of Stainless-steel fibre, it is characterised in that count by weight percentage, constitutes and is：Diamond dust
25-37%；Mullite powder 8-12%；Plate diamond spar powder 8-12%；Alumina powder 6-10%；Silicon powder 3-7%；Pure calcium aluminate cement
5-8%；Steel fibre 1-4%；Kyanite 5-8%;Aluminium titanates 3-5%;Chromium oxide 3-5%;Magnesium aluminate spinel 10-15%;Composite anti-explosion agent
1-2%；Water reducer 0.5-1%；Antioxidant 0.5-1%.
2. the wear-resisting anti-explosion refractory castable of a kind of Stainless-steel fibre according to claim 1, it is characterised in that by weight percentage
Calculate, the composite anti-explosion agent composition is：Aluminium powder 60-80%；Explosion-proof fiber 10-20%；Azodicarbonamide 10-20%.
3. the wear-resisting anti-explosion refractory castable of a kind of Stainless-steel fibre according to claim 1, it is characterised in that the water reducer is
Sodium tripolyphosphate.
4. a kind of wear-resisting anti-explosion refractory castable of Stainless-steel fibre according to claim 1, it is characterised in that the antioxidant
It is boron carbide.
5. the wear-resisting anti-explosion refractory castable of a kind of Stainless-steel fibre according to claim 1, it is characterised in that the raw material are expired
The following index of foot：Diamond dust granularity is 1-8mm;Mullite powder granularity≤1mm；Plate diamond spar Powder Particle Size is 325 mesh；Aluminum oxide is micro-
Powder Particle Size is 1-3 μm；Silicon powder granularity is 0.1-0.3 μm；Pure calcium aluminate cement specific surface area 5500g/cm2;Steel fibre diameter
It is 0.2-0.6mm, length is 20mm;Kyanite granularity≤0.2mm;Metatitanic acid aluminium particle size≤0.5mm;Chromium oxide granularity≤1mm;Magnesium
Aluminate granularity≤12mm.
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Cited By (7)
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| CN109160808A (en) * | 2018-09-28 | 2019-01-08 | 郑州市瑞沃耐火材料有限公司 | Arc furnace ventral triangle area prefabricated component dedicated pouring material |
| CN111662088A (en) * | 2020-06-11 | 2020-09-15 | 裘伟 | Refractory castable prepared from coal gangue and preparation method thereof |
| CN111763092A (en) * | 2020-06-17 | 2020-10-13 | 林国强 | Anti-slagging high-temperature wear-resistant composite material and preparation method thereof |
| CN112341222A (en) * | 2020-11-11 | 2021-02-09 | 湖南湘钢瑞泰科技有限公司 | Hot metal ladle castable and preparation method thereof |
| CN112851377A (en) * | 2021-01-23 | 2021-05-28 | 南京科技职业学院 | High-temperature structural ceramic material doped with polymer tubular fibers |
| CN114873998A (en) * | 2022-05-12 | 2022-08-09 | 郑州隆冠新材料科技有限公司 | Refractory material castable for iron channel of iron-making blast furnace and preparation method thereof |
| CN115403362A (en) * | 2022-09-02 | 2022-11-29 | 河南瑞泰耐火材料科技有限公司 | High-strength explosion-proof castable for secondary lead converter mouth and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109160808A (en) * | 2018-09-28 | 2019-01-08 | 郑州市瑞沃耐火材料有限公司 | Arc furnace ventral triangle area prefabricated component dedicated pouring material |
| CN111662088A (en) * | 2020-06-11 | 2020-09-15 | 裘伟 | Refractory castable prepared from coal gangue and preparation method thereof |
| CN111763092A (en) * | 2020-06-17 | 2020-10-13 | 林国强 | Anti-slagging high-temperature wear-resistant composite material and preparation method thereof |
| CN112341222A (en) * | 2020-11-11 | 2021-02-09 | 湖南湘钢瑞泰科技有限公司 | Hot metal ladle castable and preparation method thereof |
| CN112341222B (en) * | 2020-11-11 | 2023-04-14 | 湖南湘钢瑞泰科技有限公司 | Hot metal ladle castable and preparation method thereof |
| CN112851377A (en) * | 2021-01-23 | 2021-05-28 | 南京科技职业学院 | High-temperature structural ceramic material doped with polymer tubular fibers |
| CN114873998A (en) * | 2022-05-12 | 2022-08-09 | 郑州隆冠新材料科技有限公司 | Refractory material castable for iron channel of iron-making blast furnace and preparation method thereof |
| CN115403362A (en) * | 2022-09-02 | 2022-11-29 | 河南瑞泰耐火材料科技有限公司 | High-strength explosion-proof castable for secondary lead converter mouth and preparation method thereof |
| CN115403362B (en) * | 2022-09-02 | 2023-08-22 | 河南瑞泰耐火材料科技有限公司 | High-strength explosion-proof castable for secondary lead converter mouth and preparation method thereof |
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