CN101190849B - Flash baking pouring material - Google Patents
Flash baking pouring material Download PDFInfo
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- CN101190849B CN101190849B CN2007101897349A CN200710189734A CN101190849B CN 101190849 B CN101190849 B CN 101190849B CN 2007101897349 A CN2007101897349 A CN 2007101897349A CN 200710189734 A CN200710189734 A CN 200710189734A CN 101190849 B CN101190849 B CN 101190849B
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- alumine
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- ultrafine powder
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Abstract
The invention discloses a high alumina pouring material and a self-flowing material used for a heating furnace, with 75-95 percent of high alumina bauxite, 1-10 percent of cement, 3-8 percent of silica ultrafine powder, 0.01- 1 percent of sodium polyphosphate, 0.01-5 percent of metal aluminum and 0.01-5 percent of explosion proof fiber as raw materials according to weight percentage. The inventionis easy to be constructed and disassembled from mould with baking time of only 1-4 days, thus greatly shortening the time of the whole construction; when used for self-flow pouring material, the inve ntion has little water addition, good gravity flow and high strength, can self flow flatly without vibration, is suitable for being constructed on position with complex switches and narrow positions and improves the use intensity and heat-shake stability of products. The refractoriness of the product of the invention is higher than 1790 DEG C; the compressive strength is more than 60MPa under the condition of 1350 DEG C multiplied by 3h and anti-breaking strength is more than 10MPa; the invention can bear more than 30 times of heat shock under 1100 DEG C and water cooling condition.
Description
One, technical field:
The present invention relates to a kind of refractory materials, particularly relate to a kind of process furnace high alumina castable and self-flowing material.
Two, background technology:
Process furnace has low cement deposit material, ultra-low cement deposit material and non-cement mould material with the traditional product of high alumina castable, and its common feature is: dense materials, storing time is long, is generally 10～20 days.
And flash baking pouring material, self-flowing material are when keeping low cement deposit material, ultra-low cement deposit material and the good use properties of non-cement mould material, can quick baking, make integrated poured body of heater in 3 to 4 days, can finish baking, particularly repairing, storing time only is 16 to 36 hours, thereby greatly shorten process furnace construction period, improved the operating rate of process furnace etc., brought remarkable economic efficiency to factory.
Three, summary of the invention:
The technical problem to be solved in the present invention is: overcome the shortcoming of traditional heating stove with high alumina castable, but the mould material and the self-flowing material of baking duration a kind of quick baking, that can shorten process furnace, raising process furnace operating rate are provided.
Technical scheme of the present invention:
A kind of flash baking pouring material is represented with weight percent, and raw material is alumine 75～95%, cement 1～10%, silicon-dioxide ultrafine powder 3～8%, sodium polyphosphate 0.01～1%, metallic aluminium 0.01～5%, explosion-proof fiber 0.01～5%.
Described flash baking pouring material, wherein alumine 85～90%, cement 3～5%, silicon-dioxide ultrafine powder 3～5%, sodium polyphosphate 0.01～0.5%, metallic aluminium 0.01～3%, explosion-proof fiber 0.01～3%.
Described flash baking pouring material also contains feed metal silicon 0.01～5%.
Described alumine granularity is between 0.044～8mm, and its size-grade distribution is 8～5mm: 5～3mm: 3～1mm: 1～0.21mm: 0.088mm: 0.044mm=4: 3: 3: 4: 3: 1.
The granularity of described silicon-dioxide ultrafine powder is 0.002mm, and described cement is the fine aluminium acid salt cement, and described sodium polyphosphate is Sodium hexametaphosphate 99 or Trisodium trimetaphosphate, or is the mixture of the two any ratio.
A kind of quick baking self-flowing material is represented with weight percent, and raw material is alumine 75～95%, cement 1～10%, silicon-dioxide ultrafine powder 3～8%, sodium polyphosphate 0.01～1%, metallic aluminium 0.01～5%, explosion-proof fiber 0.01～5%.
Described quick baking self-flowing material, wherein alumine 85～90%, cement 3～5%, silicon-dioxide ultrafine powder 3～5%, sodium polyphosphate 0.01～0.5%, metallic aluminium 0.01～3%, explosion-proof fiber 0.01～3%.
Described flash baking pouring material also contains feed metal silicon 0.01～5%.
Described alumine granularity is between 0.044～8mm, and its size-grade distribution is 8～5mm: 5～3mm: 3～1mm: 1～0.21mm: 0.088mm: 0.044mm=4: 3: 3: 4: 3: 1.
The granularity of described silicon-dioxide ultrafine powder is 0.02mm, and described cement is the fine aluminium acid salt cement, and described sodium polyphosphate is Sodium hexametaphosphate 99 or Trisodium trimetaphosphate, or is the mixture of the two any ratio.
The performance requriements of each raw material:
1. alumine
| Title | Index |
| Alumine | Al 2O 3≥70％，Fe 2O 3≤3％，Na 2O+K 2O≤0.8％ |
2. metallic aluminium standard
3. explosion-proof fiber
| Length/mm | Diameter/μ m | Fusing point/℃ |
| 3～5 | 110～120 | 80±5 |
4. Sodium hexametaphosphate 99
| Index name | Numerical value |
| Total phosphate is (with P 2O 5Count), % 〉= | 68.0 |
| Nonactive phosphoric acid salt is (with P 2O 5Count), %≤ | 7.5 |
| Iron (Fe), %≤ | 0.05 |
| Water-insoluble, %≤ | 0.06 |
| PH value | 5.8-6.5 |
[0025] 5. tripoly phosphate sodium STPP
| Index name | Numerical value |
| Outward appearance | In vain |
| Tripoly phosphate sodium STPP % | ≥85 |
| Total phosphorus content (in Vanadium Pentoxide in FLAKES), % | ≥55 |
| The calcium value | ≥9 |
| PH value (1% aqueous solution) | 9.2～9.8 |
| Water-insoluble (%) | ≤0.15 |
6. pure calcium aluminate cement
| Al 2O 3 | CaO | SiO 2 | Fe 2O 3 | Granularity |
| ＞70 | ＜28 | ＜1.0 | ＜1.0 | 0.072～0.088mm |
7. silicon-dioxide ultrafine powder
8. Pure Silicon Metal
| Project | One-level |
| SiO 2(％) | ≥98 |
| Fe 2O 3(％) | ≤0.7 |
The positive beneficial effect of product of the present invention:
(1) main raw material of product of the present invention adopts superfine or one-level alumine, less important raw material adopts the fine aluminium acid salt cement, adding metallic aluminium and explosion-proof fiber, and by reasonable grit grading base substrate is formed numerously to run through little pore and be convenient to water vapour and discharge as the modified version admixture.The present invention is easy to construction, is easy to form removal, and storing time only has 1～4 day, has shortened the integral construction time greatly.Amount of water is few when being used for gravity flow pouring material, and self drainage is good, intensity is high, need not vibrate levelling voluntarily, is applicable to construction switch complexity and narrow positions, improves the working strength and the thermal shock resistance of product.
(2) product refractoriness of the present invention is greater than 1790 ℃; Compressive strength under 1350 ℃ * 3h condition is greater than 60MPa, and folding strength is greater than 10MPa; Thermal shock resistance under [1100 ℃-water-cooled] condition above 30 times.
Four, embodiment:
Embodiment one: flash baking pouring material, represent that with weight percent raw material is an alumine 83%, fine aluminium acid salt cement 5%, silicon-dioxide ultrafine powder 7%, Trisodium trimetaphosphate 0.5%, metallic aluminium 2%, explosion-proof fiber 2.5%.
Wherein the alumine granularity is between 0.044～8mm, and wherein the size-grade distribution section is: totally 6 grades of 8～5mm, 5～3mm, 3～1mm, 1～0.21mm, 0.088mm, 0.044mm, and its ratio is about 4: 3: 3: 4: 3: 1; The granularity of silicon-dioxide ultrafine powder is 0.02mm.
The performance index of each raw material and the requirement that will ask for an interview in the technical scheme of the present invention are picked up choosing, fragmentation, screening with each raw material during production, are mixed in proportion, pack, and get product.
Embodiment two: basic identical with embodiment one, difference is,
Raw material is an alumine 92%, fine aluminium acid salt cement 3%, silicon-dioxide ultrafine powder 4%, Trisodium trimetaphosphate 0.1%, metallic aluminium 0.2%, explosion-proof fiber 0.7%.
Wherein the alumine granularity accounts for 70% less than the secondary alumina aggregate of 5mm, accounts for 30% less than the one-level alumina powder of 0.088mm.
Embodiment three: basic identical with embodiment one, difference is,
Raw material is an alumine 95%, fine aluminium acid salt cement 1%, silicon-dioxide ultrafine powder 3%, Trisodium trimetaphosphate 0.1%, metallic aluminium 0.2%, explosion-proof fiber 0.7%.
Wherein the alumine granularity accounts for 65% less than the secondary alumina aggregate of 5mm, accounts for 35% less than the one-level alumina powder of 0.088mm.
Embodiment four: basic identical with embodiment one, difference is,
Raw material is an alumine 78%, fine aluminium acid salt cement 8%, silicon-dioxide ultrafine powder 7%, Trisodium trimetaphosphate 1%, metallic aluminium 3%, explosion-proof fiber 3%.
Embodiment five: basic identical with embodiment one, difference is,
Raw material is an alumine 75%, fine aluminium acid salt cement 8%, silicon-dioxide ultrafine powder 6.8%, Trisodium trimetaphosphate 0.2%, metallic aluminium 5%, explosion-proof fiber 5%.
Embodiment six: basic identical with embodiment one, difference is,
Raw material is an alumine 88%, fine aluminium acid salt cement 5%, silicon-dioxide ultrafine powder 3%, Trisodium trimetaphosphate 0.5%, Sodium hexametaphosphate 99 0.5%, metallic aluminium 1%, explosion-proof fiber 2%.
Embodiment seven: basic identical with embodiment one, difference is,
Raw material is an alumine 90%, fine aluminium acid salt cement 2%, silicon-dioxide ultrafine powder 6%, Sodium hexametaphosphate 99 0.5%, metallic aluminium 0.7%, Pure Silicon Metal 0.5%, explosion-proof fiber 0.3%.
Embodiment eight: basic identical with embodiment one, difference is,
Raw material is an alumine 85%, fine aluminium acid salt cement 8%, silicon-dioxide ultrafine powder 4%, Sodium hexametaphosphate 99 0.8%, metallic aluminium 0.4%, Pure Silicon Metal 1%, explosion-proof fiber 0.8%.
Embodiment nine: basic identical with embodiment one, difference is,
Raw material is an alumine 78%, fine aluminium acid salt cement 5%, silicon-dioxide ultrafine powder 7%, Sodium hexametaphosphate 99 1%, metallic aluminium 2%, Pure Silicon Metal 3%, explosion-proof fiber 4%.
Embodiment ten: basic identical with embodiment one, difference is,
Raw material is an alumine 70%, fine aluminium acid salt cement 10%, silicon-dioxide ultrafine powder 8%, Sodium hexametaphosphate 99 1%, metallic aluminium 5%, Pure Silicon Metal 5%, explosion-proof fiber 1%.
Embodiment 11: the quick baking self-flowing material, represent that with weight percent raw material is an alumine 82%, fine aluminium acid salt cement 8%, silicon-dioxide ultrafine powder 5%, Trisodium trimetaphosphate 0.5%, metallic aluminium 2%, explosion-proof fiber 2.5%.
Wherein the alumine granularity is between 0.044～8mm, and wherein the size-grade distribution section is: totally 6 grades of 8～5mm, 5～3mm, 3～1mm, 1～0.21mm, 0.088mm, 0.044mm, and its ratio is about 4: 3: 3: 4: 3: 1; The granularity of silicon-dioxide ultrafine powder is 0.02mm.
During production with each raw material through picking up choosing, fragmentation, screening, be mixed in proportion, pack, get product.
The performance index of each raw material and will ask for an interview to requirement in the technical scheme of the present invention wherein.
Embodiment 12: this is identical with the embodiment undecyl, and difference is,
Raw material is an alumine 85%, fine aluminium acid salt cement 5%, silicon-dioxide ultrafine powder 7%, Trisodium trimetaphosphate 1%, metallic aluminium 1%, explosion-proof fiber 1%.
Wherein the alumine granularity accounts for 65% less than the secondary alumina aggregate of 5mm, accounts for 35% less than the one-level alumina powder of 0.088mm.
Embodiment 13: this is identical with the embodiment undecyl, and difference is,
Raw material is an alumine 93%, fine aluminium acid salt cement 3%, silicon-dioxide ultrafine powder 3%, Trisodium trimetaphosphate 0.3%, metallic aluminium 0.4%, explosion-proof fiber 0.3%.
Wherein the alumine granularity accounts for 70% less than the secondary alumina aggregate of 5mm, accounts for 30% less than the one-level alumina powder of 0.088mm.
Embodiment 14: this is identical with the embodiment undecyl, and difference is,
Raw material is an alumine 78%, fine aluminium acid salt cement 8%, silicon-dioxide ultrafine powder 8%, Trisodium trimetaphosphate 0.3%, Sodium hexametaphosphate 99 0.7%, metallic aluminium 2%, explosion-proof fiber 3%.
Embodiment 15: this is identical with the embodiment undecyl, and difference is,
Raw material is an alumine 76%, fine aluminium acid salt cement 10%, silicon-dioxide ultrafine powder 8%, Trisodium trimetaphosphate 0.4%, Sodium hexametaphosphate 99 0.6%, metallic aluminium 3%, explosion-proof fiber 2%.
Embodiment 16: this is identical with the embodiment undecyl, and difference is,
Raw material is an alumine 75%, fine aluminium acid salt cement 8%, silicon-dioxide ultrafine powder 7%, Trisodium trimetaphosphate 0.4%, Sodium hexametaphosphate 99 0.6%, metallic aluminium 5%, explosion-proof fiber 4%.
Embodiment 17: this is identical with the embodiment undecyl, and difference is,
Raw material is an alumine 80%, fine aluminium acid salt cement 5%, silicon-dioxide ultrafine powder 5%, Trisodium trimetaphosphate 0.2%, Sodium hexametaphosphate 99 0.8%, metallic aluminium 4%, Pure Silicon Metal 0.5%, explosion-proof fiber 4.5%.
Embodiment 18: this is identical with the embodiment undecyl, and difference is,
Raw material is an alumine 81%, fine aluminium acid salt cement 7%, silicon-dioxide ultrafine powder 7%, Trisodium trimetaphosphate 0.5%, metallic aluminium 0.5%, Pure Silicon Metal 1%, explosion-proof fiber 3%.
Embodiment 19: this is identical with the embodiment undecyl, and difference is,
Raw material is an alumine 88%, fine aluminium acid salt cement 5%, silicon-dioxide ultrafine powder 4%, Trisodium trimetaphosphate 0.9%, metallic aluminium 0.05%, Pure Silicon Metal 0.05%, explosion-proof fiber 2%.
Embodiment 20: this is identical with the embodiment undecyl, and difference is,
Raw material is an alumine 84%, fine aluminium acid salt cement 3%, silicon-dioxide ultrafine powder 5%, Sodium hexametaphosphate 99 1%, metallic aluminium 3%, Pure Silicon Metal 3%, explosion-proof fiber 1%.
Embodiment 21: this is identical with the embodiment undecyl, and difference is,
Raw material is an alumine 85%, fine aluminium acid salt cement 2%, silicon-dioxide ultrafine powder 6%, Trisodium trimetaphosphate 0.3%, metallic aluminium 1.5%, Pure Silicon Metal 4.7%, explosion-proof fiber 0.5%.
The specific performance index of flash baking pouring material among the embodiment and self-flowing material, see the following form:
Claims (4)
1. flash baking pouring material, it is characterized in that: represent with weight percent, contain raw material alumine 75～95%, cement 1～10%, silicon-dioxide ultrafine powder 3～8%, sodium polyphosphate 0.01～1%, metallic aluminium 0.01～5%, explosion-proof fiber 0.01～5%; Described alumine granularity is between 0.044～8mm, its size-grade distribution is 8～5mm:5～3mm:3～1mm:1～0.21mm:0.088mm:0.044mm=4: 3: 3: 4: 3: 1, described sodium polyphosphate is Sodium hexametaphosphate 99 or Trisodium trimetaphosphate, or is the mixture of the two any ratio.
2. flash baking pouring material according to claim 1 is characterized in that: wherein alumine 85～90%, cement 3～5%, silicon-dioxide ultrafine powder 3～5%, sodium polyphosphate 0.01～0.5%, metallic aluminium 0.01～3%, explosion-proof fiber 0.01～3%.
3. flash baking pouring material according to claim 1 and 2 is characterized in that: also contain Pure Silicon Metal 0.01～5%.
4. flash baking pouring material according to claim 1 and 2 is characterized in that: the granularity of described silicon-dioxide ultrafine powder is 0.002mm, and described cement is the fine aluminium acid salt cement.
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| CN2007101897349A CN101190849B (en) | 2007-09-30 | 2007-09-30 | Flash baking pouring material |
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| CN101190849B true CN101190849B (en) | 2010-08-04 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101857454B (en) * | 2010-06-28 | 2012-07-04 | 通达耐火技术股份有限公司 | Bauxite-based high-density fireproof synthetic material and production method |
| CN102887715B (en) * | 2011-07-22 | 2014-07-23 | 宝山钢铁股份有限公司 | Ladle permanent lining pouring material capable of rapid roasting |
| CN102674861B (en) * | 2012-05-24 | 2014-04-02 | 洛阳理工学院 | Refractory castable containing viscoplasticity phase and preparation method thereof |
| CN102838366B (en) * | 2012-09-27 | 2014-07-30 | 云南楚雄诚鑫高温新材料有限公司 | High-strength refractory casting material and preparation method thereof |
| CN103759537A (en) * | 2014-01-17 | 2014-04-30 | 福建兴航机械铸造有限公司 | Construction method for low-cement refractory castables at bottom of stepping heating furnace |
| CN106045540A (en) * | 2016-07-19 | 2016-10-26 | 郑州鑫源防磨耐材有限公司 | High-strength wearing-resistant refractory casting material |
| CN109053167B (en) * | 2018-09-05 | 2019-06-25 | 北京东峰兴达耐火材料有限公司 | Vacuum boiler burner hearth gravity flow pouring material |
| CN109678436A (en) * | 2019-01-01 | 2019-04-26 | 中国人民解放军63653部队 | A kind of high temperature resistant Hearth Furnace self-leveling concrete pouring material |
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| CN1597604A (en) * | 2004-07-21 | 2005-03-23 | 王永发 | Low cement high temperature high trength pouring material |
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|---|---|---|---|---|
| CN1597604A (en) * | 2004-07-21 | 2005-03-23 | 王永发 | Low cement high temperature high trength pouring material |
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