CN101412629A - Periclase-magnesium aluminate spinel composite refractory brick and technique for producing the same - Google Patents
Periclase-magnesium aluminate spinel composite refractory brick and technique for producing the same Download PDFInfo
- Publication number
- CN101412629A CN101412629A CNA2008101469779A CN200810146977A CN101412629A CN 101412629 A CN101412629 A CN 101412629A CN A2008101469779 A CNA2008101469779 A CN A2008101469779A CN 200810146977 A CN200810146977 A CN 200810146977A CN 101412629 A CN101412629 A CN 101412629A
- Authority
- CN
- China
- Prior art keywords
- magnesia
- percent
- millimeter
- forsterite
- flame retardant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention relates to an alkaline composite refractory brick, which consists of a periclase-magnesium aluminate spinel flame retardant coating and a periclase-forsterite thermal-protective coating. The proportion of the alkaline composite refractory brick is as follows: 1) the proportion of the flame retardant coating is as follows: 29 to 48 percent of magnesite of between 5 and 1 millimeter, 7 to 16 percent of the magnesium aluminate spinel of between 3 and 1 millimeter, 6 to 20 percent of the magnesite of between 1 and 0.088 millimeter, 0 to 4 percent of desilicated zirconia granules of between 0.4 and 0.088 millimeter, 16 to 25 percent of the magnesite of less than 0.088 millimeter, 0 to 10 percent of magnesite micropowder of less than 0.020 millimeter, 0 to 5 percent of desilicated zirconia micropowder of less than 0.020 millimeter, 0 to 3 percent of calcium carbonate micropowder less than 0.020 millimeter, 0 to 6 percent of lanthanum oxide of less than 0.020 millimeter, and 0 to 0.3 percent of additional water reducing agent (sulfonated naphthaldehyde polymer, sulfonated melamine polymer and polycarboxylic acid or sodium salt thereof); and 2) the proportion of the thermal-protective coating is as follows: 0 to 20 percent of the magnesite of between 3.2 and 1.0 millimeter, 35 to 45 percent of the forsterite of between 3.2 and 1.0 meter, 5 to 15 percent of the magnesite of between 1.0 and 0.088 millimeter, 5 to 15 percent of the forsterite of between 1.0 and 0.088 millimeter, and 30 to 40 percent of grinding powder of the magnesite and the forsterite of less than 0.088 millimeter. The material has the advantages that the material improves the erosion resistance of the flame retardant coating by micropowder technology, and allows the sintering temperature of the flame retardant coating to be matched with that of the thermal-protective coating, thereby producing the periclase-magnesium aluminate spinel alkaline composite refractory brick which has excellent.
Description
Technical field
The present invention relates to a kind of magnesium-aluminium spinel composite refractory brick.This material is made up of periclasite-dimension stone of magnesia alumina spinel flame retardant coating and periclasite-forsterite material thermofin; have good high temperature resistant, anti-erosion, anti-thermal shock and very good heat-proof quality; be suitable for the upside transitional zone of cement nsp kiln; particularly cement short flow-process, burn till the upside transitional zone of new type dry kiln in advance, to obtain the effect of longevity, energy-conservation and protection kiln body.
Background technology
The cement nsp kiln is the main body kiln type of Cement industry.In the nsp kiln, the length of transitional zone accounts for 40% of kiln length.The transitional zone temperature is higher, does not hang kliner coating again, also uses the periclasite-dimension stone of magnesia alumina spinel of thermal conductivity up to 4～5w/mk.This just makes transitional zone kiln body temperature degree height, and steel plate corrosion speed is fast, and many factories have to adopt the large fan array to force cooling could keep production reluctantly.Thus, very significantly increased heat lost by radiation, made thermal process in the kiln, the carrying capacity of environment of grog output, cement hear rate, cylindrical shell life-span, production cost and manufacturing is all had a strong impact on.
The national refractory materials key scientific and technological projects in " eight or five " that China Building Materials Academy bears been had once had been researched and developed " cement kiln refractory heat-insulating alkalescence composite brick ".The flame retardant coating of this brick adopts the common magnesium chromium material of 1650 ℃ of refractorinesss under load, and thermofin adopts the forsterite material of 1650 ℃ of refractorinesss under load, finishes sintering about 1650 ℃, has made the only composite brick of 1.46w/mk of thermofin thermal conductivity.This brick uses at Φ 2.6 * 41m small-sized cement rotary kiln, makes kiln body temperature degree reduce by 100 ℃, and obtains nearly 10 months life-span.But this material has two shortcomings: 1) product contains chromic oxide, can produce hypertoxic, carcinogenic Cr after the use
+ 62) performance of product is not enough, and the big-and-middle-sized cement kiln that is used for Φ 4～5m can not obtain the satisfied life-span.
Very early, the alkaline composite brick of cement kiln was just studied by developed country, still, failed to succeed in developing always.On the one hand, major cause is to fail to solve the thermal insulation of composite refractory and the contradiction between the resistance to fouling.On the other hand, developed country has extensively adopted the automatic hydraulic former.These equipment claimed are through complicated technology transformations, just can make incidental mechanical manipulator obtain the dexterity of similar staff, adopt the complicated step composite brick that is shaped.
Applicant of the present invention has proposed a kind of short flow process, has burnt till technology (Chinese invention patent 200710147564.8) in advance, and its main points are that raw material are sent in the rotary kiln about kiln tail suspension system pre-burning to 1200 ℃ again.Like this, can make the material that enters in the kiln that thermopositive reaction takes place rapidly, add the thermal process in the piece kiln, improve output, reduce hear rate, with the Increasing Production and Energy Saving potentiality of further excavation cement kiln.But this technology has but prolonged transitional zone length, has increased the heat radiation of kiln body, has weakened energy-saving effect.So, need the high performance transition band of cement kiln of development with hanging down the heat conduction refractory materials.
Summary of the invention
The objective of the invention is to develop a kind of composite magnesium aluminate spinel brick, be the alkaline composite refractory brick of forming by periclasite-fireproof magnesia alumina spinel layer and periclasite-forsterite thermofin, this material adopts micropowder technology to improve the flame retardant coating resistance to fouling, and make the sintering temperature coupling of the sintering temperature of flame retardant coating and thermofin, thereby have well high temperature resistant, anti-erosion, anti-thermal shock, heat-proof quality.
The research and development cement kiln need solve following difficult point with sintering alkalescence composite brick:
One, the balance physicochemical property.The flame retardant coating of composite brick is made up of different materials with thermofin, has different thermal conductivitys, thermal expansivity and sintering temperature.So, need manage to adjust prescription, make thermofin have the thermal conductivity that significantly is lower than flame retardant coating, but have the thermal expansivity close with flame retardant coating, and identical sintering temperature.Have only and satisfied this sets of conditions, just can produce alkaline sintered combined refractory brick, and guarantee the qualification rate of product.
Its two, improve resistance to fouling.Composite brick is made up of flame retardant coating and thermofin.The thermal conductivity of flame retardant coating is higher, and the thermal conductivity of thermofin is lower.According to fourier heat conduction theorem:
In the formula, q-heat flow rate per unit area w/m
2, λ-thermal conductivity w/mk,
-thermograde.
By formula 1), during thermal equilibrium, the flame retardant coating thermograde that thermal conductivity is big is little; The thermofin thermograde that thermal conductivity is little is big.In other words, composite brick mainly relies on flame retardant coating to bear high temperature action, relies on thermofin to obtain effect of heat insulation.In case the flame retardant coating of composite refractory is lost, the eutectic material of generation will penetrate into position very dark in the brick always and just can be cooled and " freezing ".So the suffered erosion of composite brick is more than common refractory brick harshness.
According to above-mentioned analysis, following solution is proposed:
1) adopt micro mist to improve the caking power of flame retardant coating.Adopt after the micro mist, can reduce by 50～100 ℃ of sintering temperatures, thereby can go out to have the periclasite-fireproof magnesia alumina spinel material of superperformance at 1650 ℃ of left and right sides sintering.On the other hand, add micro mist after, apparent porosity from ≈ 18% be reduced to≤14%, also help to reduce and corrode, improve the work-ing life of material.
2) existing transition band of cement kiln uses the alumina content of magnesium-aluminium spinel (MA) material up to 10-16%.According to MgO-CaO-Al
2O
3Phasor, MA will with the CaO effect that comes from cement clinker, generate CA, C successively
12A
7, C
3Mineral such as A.These mineral can form the material of 1321～1372 ℃ of fusing points, produce very serious erosion.So, need to reduce alumina content, make the MA particle become non-touching " isolated island ".
3) magnesium-aluminium spinel works to improve heat-shock resistance, and its volume is unsuitable very few.MA content is reduced to one regularly, just needs to improve the granularity of MA.At this moment, the distance between the MA particle increases, and the eutectic that MA is lost generation is difficult for diffusion, thereby helps improving resistance to fouling.
4) adjust activity: the crystal grain of electric smelting spinel is big, crystal boundary is few, compact structure, has the resistance to fouling that is better than the sintering spinel.So, replace the sintering spinel with the electric smelting spinel in case of necessity, can improve the resistance to fouling of material.
5) make used additives: add zirconium white, calcium oxide, lanthanum trioxide, form mineral such as baddeleyite, calcium zirconate, zirconic acid lanthanum, help further reducing sintering temperature, improving heat-shock resistance, and seldom influence high-temperature behavior.
6) reduce cost.Cement nsp kiln transitional zone hot-side temperature is higher, and the flame retardant coating of used composite refractory brick need be made of high-grade material.But, nsp kiln transitional zone cold junction temperature is lower, the flame retardant coating of its composite brick just can use the lower raw material of class to make, so, adopting alumina base magnesium-aluminium spinel is that raw material is made the transitional zone cold junction with periclasite-magnesia-aluminum spinel composite fire-resistant material, to reduce the average cost of kiln lining material.
In view of above analysis, the technical scheme that the invention refractory materials is taked is:
1) flame retardant coating
The weight of 5-1mm part accounts for 45-55% of total amount, and material is magnesia and magnesium-aluminium spinel.1-0.088mm partly accounts for the 10-20% of total amount, and material is magnesia and desilicated zirconia, and wherein the particulate of desilicated zirconia is of a size of 0.4-0.088mm.＜0.088mm partly accounts for the 25-40% of total amount, and material is that magnesia ball milling powder and composition are MgO, ZrO
2, CaO and La
2O
3Micro mist.Concrete compatibility is as follows:
5-1mm magnesia 29-48%
3-1mm magnesium-aluminium spinel 7-16%
1-0.088mm magnesia 6-20%
0.4-0.088mm desilicated zirconia particulate 0-4%
＜0.088mm magnesia 16-25%
＜0.020mm magnesia micro mist 0-10%
＜0.020mm desilicated zirconia micro mist 0-5%
＜0.020mm calcium carbonate fine powder 0-3%
＜0.020mm lanthanum trioxide micro mist 0-6%
Add water reducer (sulfonated naphthalene yuban+sulfonated melamine polymkeric substance+poly carboxylic acid or its sodium salt) 0-0.3%
Wherein:
Magnesium-aluminium spinel refers to the fireproof magnesia alumina spinel materials with the commercially available high-purity or alumina base of electric smelting or sintering processing production.The main component of high-purity magnesium-aluminum spinel is Al
2O
3=64-73%, MgO=26-35%, the main chemical compositions of alumina base magnesium-aluminium spinel is Al
2O
3=55-60%, MgO=30-40%, SiO
2≤ 3%.
Magnesia is the commercially available sintering or the electrosmelted magnesite clinker raw material of MgO content 〉=95%, wherein＜and granularity that 0.088mm magnesia refers to is that 0.088mm tails over≤10% magnesia powder.
Various＜0.020mm micro mist refers to by superfine grinding equipment preparation, 0.020mm tails over≤and 10% powder.Wherein, desilicated zirconia refers to (comprise ZrO through the rich zirconium dioxide raw material that electric smelting carbothermic reduction desiliconization makes
2〉=40% calcium zirconate, zirconic acid lanthanum raw material).Lime carbonate, the commercially available oxide raw material of oxidation group of the lanthanides.
Water reducer refers to commercially available building concrete s-generation water reducer (sulfonated naphthalene yuban, sulfonated melamine polymkeric substance), and third generation water reducer (polycarboxylic acid material) is independent or compound arbitrarily.
Above-mentioned raw materials is made the brickmaking material through weighing, after cooperating, mixing, and uses for the flame retardant coating of making composite brick.
2) thermofin
For ease of magnesia and forsterite reaction, generate fire performance M preferably
2S, the critical granularity that reduces thermofin is to 3mm.Compatibility is: the weight of 3-1mm part accounts for 40-55% of total amount, and material is magnesia and forsterite.1-0.088mm partly accounts for the 10-20% of total amount, and material is magnesia and forsterite.＜0.088mm partly accounts for the 30-40% of total amount.Material is that magnesia and forsterite mix the ball milling powder that grinds.Concrete proportioning is as follows:
3-1mm magnesia 0-20%
3-1mm forsterite 35-45%
1-0.088mm magnesia 5-15%
1-0.088mm forsterite 5-15%
The common abrasive dust 30-40% of＜0.088mm magnesia forsterite
Wherein, magnesia is the commodity magnesia of MgO content 〉=94%.The ratio of abrasive dust is magnesia: forsterite=5:1～0.5:1 altogether.Above-mentioned raw materials is made the brickmaking material through weighing, after cooperating, mixing, and uses for the thermofin of making composite brick.
After preparing the brickmaking material of flame retardant coating, thermofin, separate shaping dies with the iron plate that sawtooth is wavy, be respectively charged into the material of flame retardant coating, thermofin, extract shim again out, be pressed into compound adobe with friction press, dry back, adobe are burnt till composite brick of the present invention through 1620～1700 ℃.
Embodiment
Embodiment 1:
Present embodiment adopts high pure raw material, makes transition band of cement kiln hot junction periclasite-magnesium aluminate spinel composite brick.Wherein, the prescription of layers of material is:
Flame retardant coating
The weight of 5-1mm part accounts for 52% of total amount, and material is that MgO content is 97% magnesia and high-purity sintering magnesium-aluminium spinel.1-0.088mm partly accounts for 12% of total amount, and material is magnesia and 0.4-0.088mmdel desilicated zirconia.＜0.088mm partly accounts for 36% of total amount, and material is that magnesia ball milling powder and composition are MgO, ZrO
2Micro mist with CaO.Concrete proportioning is as follows:
5-1mm 97% magnesia 44%
The high-purity sintering magnesium-aluminium spinel 8% of 3-1mm
1-0.088mm 97% magnesia 10%
0.4-0.088mm desilicated zirconia particulate 2%
＜0.088mm 97% magnesia 24%
＜0.020mm 97% magnesia micro mist 10%
＜0.020mm desilicated zirconia micro mist 1%
＜0.020mm calcium carbonate fine powder 1%
＜0.020mm lanthanum trioxide micro mist 0%
Add water reducer (poly carboxylic acid) 0.05%
Above-mentioned raw materials is to make the brickmaking material after temporary transient wedding agent mixes through weighing, cooperation, with spent pulping liquor, uses for the flame retardant coating of making composite brick.
Thermofin:
The weight of 3-1mm part accounts for 50% of total amount, and material is 95% magnesia and forsterite.1-0.088mm partly accounts for 16% of total amount, and material is 95% magnesia and forsterite.＜0.088mm partly accounts for 34% of total amount, and material is that 95% magnesia and forsterite mix the ball milling powder that grinds.Concrete compatibility is as follows:
3-1mm 95% magnesia 15%
3-1mm forsterite 35%
1-0.088mm 95% magnesia 8%
1-0.088mm forsterite 8%
The common abrasive dust 34% of＜0.088mm magnesia forsterite
Wherein, the ratio of abrasive dust is magnesia: forsterite=3:1 altogether.Above-mentioned raw materials is made the brickmaking material through weighing, after cooperating, mixing, and uses for the thermofin of making composite brick.
During shaping, separate shaping dies, be respectively charged into the brickmaking material of flame retardant coating, thermofin, extract shim again out, be pressed into common compound adobe with the 630T friction press with the iron plate that sawtooth is wavy.Dry back, adobe are burnt till through 1660 ℃ of * 8H, make product export through check, packing again.The performance index of composite brick see the following form:
Table 1 magnesium-aluminium spinel composite refractory brick performance
| Apparent porosity % | Volume density g/cm 3 | Compressive strength MPa | Refractoriness under load T 0 6 ℃ | Thermal conductivity w/mk | |
| Flame retardant coating | 14 | 3.18 | 59.1 | >1700 | 3.8 |
| Thermofin | 21 | 2.61 | 50.2 | 1660 | 1.8 |
Embodiment 2:
Present embodiment adopts alumina base magnesium-aluminium spinel, makes transition band of cement kiln cold junction periclasite-magnesium aluminate spinel composite brick.
Wherein, the prescription of layers of material is:
Flame retardant coating
The weight of 5-1mm part accounts for 50% of total amount, and material is that MgO content is 95% magnesia and alumina-base fused magnesium-aluminium spinel.1-0.088mm partly accounts for 15% of total amount, and material is 95% magnesia.＜0.088mm partly accounts for 35% of total amount, and material is magnesia ball milling powder and magnesia micro mist.Concrete compatibility is as follows:
5-1mm 95% magnesia 34%
The alumina-base fused magnesium-aluminium spinel 16% of 3-1mm
1-0.088mm 95% magnesia 15%
＜0.088mm 95% magnesia 23%
＜0.020mm 95% magnesia micro mist 12%
Add water reducer (sulfonated melamine resin) 0.15%
Above-mentioned raw materials is made the brickmaking material through weighing, after cooperating, mixing, and uses for the flame retardant coating of making composite brick.
Thermofin:
The weight of 3-1mm part accounts for 50% of total amount, and material is 94% magnesia and forsterite.1-0.088mm partly accounts for 16% of total amount, and material is 94% magnesia and forsterite.＜0.088mm partly accounts for 36% of total amount, and material is that 94% magnesia and forsterite mix the ball milling powder that grinds.Concrete compatibility is as follows:
3-1mm 94% magnesia 12%
3-1mm forsterite 38%
1-0.088mm 94% magnesia 6%
1-0.088mm forsterite 10%
The common abrasive dust 36% of＜0.088mm magnesia forsterite
Wherein, the ratio of abrasive dust is magnesia: forsterite=1:1 altogether.Above-mentioned raw materials is made the brickmaking material through weighing, after cooperating, mixing, and uses for the thermofin of making composite brick.
During shaping, separate shaping dies, be respectively charged into the brickmaking material of flame retardant coating, thermofin, extract shim again out, be pressed into common compound adobe with the 630T friction press with the iron plate that sawtooth is wavy.Dry back, adobe are burnt till through 1650 ℃ of * 6H, make product export through check, packing again.The performance index of composite brick see the following form:
Table 2 magnesium-aluminium spinel composite refractory brick performance
| Apparent porosity % | Volume density g/cm 3 | Compressive strength MPa | Refractoriness under load T 0 6 ℃ | Thermal conductivity w/mk |
| Flame retardant coating | 14 | 2.98 | 53.4 | 1680 | 3.7 |
| Thermofin | 22 | 2.56 | 48.5 | 1650 | 1.6 |
By above experiment, made heat insulation end thermal conductivity=1.6～1.8w/mk, fire-resistant end refractoriness under load=1680～〉 1700 ℃, the alkaline composite refractory of apparent porosity about 14%, thereby can satisfy the index request of transition band of cement kiln with low heat conduction Mg-Al spinel brick, research has reached predetermined purpose.
The present invention adopts micropowder technology to improve the flame retardant coating resistance to fouling, and the sintering temperature of flame retardant coating and the sintering temperature of thermofin are mated, thereby produce have well high temperature resistant, anti-erosion, anti-thermal shock, heat-proof quality, be suitable for the periclasite-magnesium-aluminium spinel alkalescence composite brick of the transitional zone of cement nsp kiln as lining brick.
Claims (2)
1. periclasite-magnesium-aluminium spinel composite refractory brick, formed, be it is characterized in that by periclasite-fireproof magnesia alumina spinel layer and periclasite-forsterite thermofin: the proportioning of described composite brick is:
1) proportioning of flame retardant coating:
5-1mm magnesia 29-48%
3-1mm magnesium-aluminium spinel 7-16%
1-0.088mm magnesia 6-20%
4-0.088mm desilicated zirconia particulate 0-4%
＜0.088mm magnesia 16-25%
＜0.020mm magnesia micro mist 0-10%
＜0.020mm desilicated zirconia micro mist 0-5%
＜0.020mm calcium carbonate fine powder 0-3%
＜0.020mm lanthanum trioxide micro mist 0-6%
Add water reducer (sulfonated naphthalene yuban+sulfonated melamine polymkeric substance+poly carboxylic acid or its sodium salt) 0-0.3%
Described magnesium-aluminium spinel refers to that wherein: the main component of high-purity magnesium-aluminum spinel is Al with the fireproof magnesia alumina spinel materials of the commercially available high-purity or alumina base of electric smelting or sintering processing production
2O
3=64-73%, MgO=26-35%; The main chemical compositions of alumina base magnesium-aluminium spinel is Al
2O
3=55-60%, MgO=30-40%, SiO
2≤ 3%;
Described magnesia is the commercially available sintering or the electrosmelted magnesite clinker raw material of MgO content 〉=95%, wherein＜and granularity that 0.088mm magnesia refers to is that 0.088mm tails over≤10% magnesia powder;
Described various＜the 0.020mm micro mist refers to by superfine grinding equipment preparation, 0.020mm tails over≤10% powder, wherein, desilicated zirconia refers to (comprise ZrO through the rich zirconium dioxide raw material that electric smelting carbothermic reduction desiliconization makes
2〉=40% calcium zirconate, zirconic acid lanthanum raw material), lime carbonate, the commercially available oxide raw material of oxidation group of the lanthanides;
Described water reducer refers to commercially available building concrete s-generation water reducer (sulfonated naphthalene yuban, sulfonated melamine polymkeric substance), and third generation water reducer (polycarboxylic acid material) is independent or compound arbitrarily;
2) thermofin proportioning:
3.2-1.0mm magnesia 0-20%
3.2-1.0m forsterite 35-45%
1.0-0.088mm magnesia 5-15%
1.0-0.088mm forsterite 5-15%
The common abrasive dust 30-40% of＜0.088mm magnesia forsterite
Described magnesia is the commodity magnesia of MgO content 〉=94%, and the described ratio of abrasive dust altogether is magnesia: forsterite=5:1～0.5:1.
2. the described periclasite of production claim 1-magnesium-aluminium spinel composite refractory brick production technique, it is characterized in that: after preparing the brickmaking material of flame retardant coating, thermofin, separate shaping dies with the iron plate that sawtooth is wavy, be respectively charged into the material of flame retardant coating, thermofin, extract shim again out, be pressed into compound adobe with friction press, dry back, adobe are burnt till through 1620～1700 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810146977.9A CN101412629B (en) | 2008-08-29 | Periclase-magnesium aluminate spinel composite refractory brick and production technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810146977.9A CN101412629B (en) | 2008-08-29 | Periclase-magnesium aluminate spinel composite refractory brick and production technology thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101412629A true CN101412629A (en) | 2009-04-22 |
| CN101412629B CN101412629B (en) | 2016-12-14 |
Family
ID=
Cited By (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101857451A (en) * | 2010-06-07 | 2010-10-13 | 浙江大学 | Heat-insulating integrated composite brick with alkaline structure and preparation method thereof |
| CN101863673A (en) * | 2010-06-07 | 2010-10-20 | 长兴锅炉耐火器材厂 | Magnesia-alumina spinel structure heat insulation integral composite brick and preparation method thereof |
| CN102020479A (en) * | 2010-12-10 | 2011-04-20 | 河南瑞泰耐火材料科技有限公司 | Mafic-magnalium compound spinel brick and preparation method thereof |
| CN102093063A (en) * | 2010-12-10 | 2011-06-15 | 河南瑞泰耐火材料科技有限公司 | Magnesium-aluminum-zirconium composite spinel refractory material |
| CN102101779A (en) * | 2010-12-10 | 2011-06-22 | 河南瑞泰耐火材料科技有限公司 | Pleonaste-hercynite bricks and preparation method thereof |
| CN102249707A (en) * | 2010-05-07 | 2011-11-23 | 日本碍子株式会社 | Composite refractory material |
| CN101544501B (en) * | 2009-05-07 | 2012-04-18 | 中国建筑材料科学研究院大石桥镁砖厂 | Forsterite zirconia brick and producing method thereof |
| CN102589290A (en) * | 2012-03-15 | 2012-07-18 | 浙江大学苏州工业技术研究院 | Forsterite four-layered composite brick and manufacturing method thereof |
| CN102674866A (en) * | 2012-06-06 | 2012-09-19 | 郑州真金耐火材料有限责任公司 | Pleonaste heat-insulation composite brick |
| CN102898169A (en) * | 2012-11-13 | 2013-01-30 | 大石桥市中建镁砖有限公司 | Method for producing forsterite zirconium brick by adopting pre-reaction process |
| CN103011857A (en) * | 2012-12-14 | 2013-04-03 | 河南瑞泰耐火材料科技有限公司 | Magnesium-enriched spinel zirconium brick for nonferrous metallurgy kiln |
| CN103508740A (en) * | 2012-06-29 | 2014-01-15 | 上海梅山钢铁股份有限公司 | Ramming mass for repairing gap bridge magnesia-alumina spinel bricks of sleeve lime kiln |
| CN104140278A (en) * | 2014-07-28 | 2014-11-12 | 瑞泰科技股份有限公司 | Magnesium-calcium-zirconium brick manufactured by means of in-situ reaction and used for secondary refining and production method |
| CN104177103A (en) * | 2014-08-28 | 2014-12-03 | 青岛永通电梯工程有限公司 | Magnesium aluminate spinel refractory material |
| CN104193374A (en) * | 2014-09-02 | 2014-12-10 | 青岛永通电梯工程有限公司 | Magnesium-aluminum refractory material |
| CN105174975A (en) * | 2015-06-12 | 2015-12-23 | 瑞泰科技股份有限公司 | Compact anti-erosion reinforced sintered zirconium oxide big brick and production process thereof |
| CN105218117A (en) * | 2015-10-23 | 2016-01-06 | 首钢总公司 | A kind of periclasite Mg-Al spinel brick and preparation method thereof |
| CN105314992A (en) * | 2015-09-02 | 2016-02-10 | 安徽建筑大学 | Chromium-free fireproof material used for cement rotary kiln and having excellent kiln coating adhering performance |
| CN105565794A (en) * | 2015-12-16 | 2016-05-11 | 淄博市鲁中耐火材料有限公司 | Preparation method of low-heat-conductivity magnesia-alumina spinel brick |
| WO2016118798A1 (en) * | 2015-01-23 | 2016-07-28 | Resco Products, Inc. | Refractory bricks and methods of making the same |
| CN106045533A (en) * | 2016-06-03 | 2016-10-26 | 宜兴新威利成耐火材料有限公司 | Periclase-forsterite-carbon brick cup for iron and steel continuous casting tundish and preparation method of brick cup |
| CN109592969A (en) * | 2018-12-20 | 2019-04-09 | 瑞泰科技股份有限公司 | A kind of low chromium electric smelting half is in conjunction with composite spinelle brick |
| CN110981431A (en) * | 2019-12-31 | 2020-04-10 | 江西中材新材料有限公司 | Foamed ceramic product preparation method and foamed ceramic product |
| CN113582687A (en) * | 2021-08-27 | 2021-11-02 | 宜兴市兴贝耐火保温工程有限公司 | Durable refractory material for key parts of hazardous waste incinerator and preparation method thereof |
| CN113698181A (en) * | 2021-08-23 | 2021-11-26 | 郑州瑞泰耐火科技有限公司 | Low-thermal-conductivity multilayer composite magnesia-hercynite brick and preparation process thereof |
| CN113999021A (en) * | 2021-10-21 | 2022-02-01 | 辽宁科技大学 | Method for modifying impurities of magnesium-based refractory material with controllable morphology |
| CN115925433A (en) * | 2022-12-31 | 2023-04-07 | 海城利尔麦格西塔材料有限公司 | Forsterite composite brick and preparation method thereof |
| CN117362008A (en) * | 2023-10-13 | 2024-01-09 | 郑州金河源耐火材料有限公司 | Periclase-spinel and hollow sphere composite brick and preparation method thereof |
| CN117362008B (en) * | 2023-10-13 | 2024-04-26 | 郑州金河源耐火材料有限公司 | Periclase-spinel and hollow sphere composite brick and preparation method thereof |
Cited By (45)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101544501B (en) * | 2009-05-07 | 2012-04-18 | 中国建筑材料科学研究院大石桥镁砖厂 | Forsterite zirconia brick and producing method thereof |
| CN102249707B (en) * | 2010-05-07 | 2015-04-08 | 日本碍子株式会社 | Composite refractory material |
| CN102249707A (en) * | 2010-05-07 | 2011-11-23 | 日本碍子株式会社 | Composite refractory material |
| CN101863673B (en) * | 2010-06-07 | 2013-01-02 | 长兴锅炉耐火器材厂 | Magnesia-alumina spinel structure heat insulation integral composite brick and preparation method thereof |
| CN101863673A (en) * | 2010-06-07 | 2010-10-20 | 长兴锅炉耐火器材厂 | Magnesia-alumina spinel structure heat insulation integral composite brick and preparation method thereof |
| CN101857451B (en) * | 2010-06-07 | 2013-04-03 | 浙江大学 | Heat-insulating integrated composite brick with alkaline structure and preparation method thereof |
| CN101857451A (en) * | 2010-06-07 | 2010-10-13 | 浙江大学 | Heat-insulating integrated composite brick with alkaline structure and preparation method thereof |
| CN102101779A (en) * | 2010-12-10 | 2011-06-22 | 河南瑞泰耐火材料科技有限公司 | Pleonaste-hercynite bricks and preparation method thereof |
| CN102101779B (en) * | 2010-12-10 | 2013-01-23 | 河南瑞泰耐火材料科技有限公司 | Pleonaste-hercynite bricks and preparation method thereof |
| CN102093063A (en) * | 2010-12-10 | 2011-06-15 | 河南瑞泰耐火材料科技有限公司 | Magnesium-aluminum-zirconium composite spinel refractory material |
| CN102020479A (en) * | 2010-12-10 | 2011-04-20 | 河南瑞泰耐火材料科技有限公司 | Mafic-magnalium compound spinel brick and preparation method thereof |
| CN102093063B (en) * | 2010-12-10 | 2013-09-18 | 河南瑞泰耐火材料科技有限公司 | Magnesium-aluminum-zirconium composite spinel refractory material |
| CN102589290A (en) * | 2012-03-15 | 2012-07-18 | 浙江大学苏州工业技术研究院 | Forsterite four-layered composite brick and manufacturing method thereof |
| CN102589290B (en) * | 2012-03-15 | 2014-04-09 | 浙江大学苏州工业技术研究院 | Forsterite four-layered composite brick and manufacturing method thereof |
| CN102674866A (en) * | 2012-06-06 | 2012-09-19 | 郑州真金耐火材料有限责任公司 | Pleonaste heat-insulation composite brick |
| CN102674866B (en) * | 2012-06-06 | 2013-12-11 | 郑州真金耐火材料有限责任公司 | Pleonaste heat-insulation composite brick |
| CN103508740B (en) * | 2012-06-29 | 2015-05-20 | 上海梅山钢铁股份有限公司 | Ramming mass for repairing gap bridge magnesia-alumina spinel bricks of sleeve lime kiln |
| CN103508740A (en) * | 2012-06-29 | 2014-01-15 | 上海梅山钢铁股份有限公司 | Ramming mass for repairing gap bridge magnesia-alumina spinel bricks of sleeve lime kiln |
| CN102898169A (en) * | 2012-11-13 | 2013-01-30 | 大石桥市中建镁砖有限公司 | Method for producing forsterite zirconium brick by adopting pre-reaction process |
| CN102898169B (en) * | 2012-11-13 | 2014-05-14 | 大石桥市中建镁砖有限公司 | Method for producing forsterite zirconium brick by adopting pre-reaction process |
| CN103011857A (en) * | 2012-12-14 | 2013-04-03 | 河南瑞泰耐火材料科技有限公司 | Magnesium-enriched spinel zirconium brick for nonferrous metallurgy kiln |
| CN104140278A (en) * | 2014-07-28 | 2014-11-12 | 瑞泰科技股份有限公司 | Magnesium-calcium-zirconium brick manufactured by means of in-situ reaction and used for secondary refining and production method |
| CN104177103A (en) * | 2014-08-28 | 2014-12-03 | 青岛永通电梯工程有限公司 | Magnesium aluminate spinel refractory material |
| CN104193374A (en) * | 2014-09-02 | 2014-12-10 | 青岛永通电梯工程有限公司 | Magnesium-aluminum refractory material |
| WO2016118798A1 (en) * | 2015-01-23 | 2016-07-28 | Resco Products, Inc. | Refractory bricks and methods of making the same |
| CN105174975A (en) * | 2015-06-12 | 2015-12-23 | 瑞泰科技股份有限公司 | Compact anti-erosion reinforced sintered zirconium oxide big brick and production process thereof |
| CN105174975B (en) * | 2015-06-12 | 2020-02-21 | 瑞泰科技股份有限公司 | Compact anti-erosion reinforced sintered zirconia brick and production process thereof |
| CN105314992A (en) * | 2015-09-02 | 2016-02-10 | 安徽建筑大学 | Chromium-free fireproof material used for cement rotary kiln and having excellent kiln coating adhering performance |
| CN105218117A (en) * | 2015-10-23 | 2016-01-06 | 首钢总公司 | A kind of periclasite Mg-Al spinel brick and preparation method thereof |
| CN105565794A (en) * | 2015-12-16 | 2016-05-11 | 淄博市鲁中耐火材料有限公司 | Preparation method of low-heat-conductivity magnesia-alumina spinel brick |
| US11299433B2 (en) | 2015-12-16 | 2022-04-12 | Zibo City Luzhong Refractories Co., Ltd. | Manufacturing method of magnesium-aluminium spinel brick and magnesium-aluminium spinel brick manufactured by the method |
| WO2017101827A1 (en) * | 2015-12-16 | 2017-06-22 | 淄博市鲁中耐火材料有限公司 | Magnesium aluminum spinel brick preparation method and magnesium aluminum spinel brick prepared using same |
| CN105565794B (en) * | 2015-12-16 | 2019-04-23 | 淄博市鲁中耐火材料有限公司 | A kind of preparation method of low thermally conductive Mg-Al spinel brick |
| CN106045533A (en) * | 2016-06-03 | 2016-10-26 | 宜兴新威利成耐火材料有限公司 | Periclase-forsterite-carbon brick cup for iron and steel continuous casting tundish and preparation method of brick cup |
| CN109592969A (en) * | 2018-12-20 | 2019-04-09 | 瑞泰科技股份有限公司 | A kind of low chromium electric smelting half is in conjunction with composite spinelle brick |
| CN109592969B (en) * | 2018-12-20 | 2021-12-07 | 瑞泰科技股份有限公司 | Low-chromium electric melting semi-recombination composite spinel brick |
| CN109592969B8 (en) * | 2018-12-20 | 2021-12-31 | 瑞泰科技股份有限公司 | Low-chromium electric melting semi-recombination composite spinel brick |
| CN110981431A (en) * | 2019-12-31 | 2020-04-10 | 江西中材新材料有限公司 | Foamed ceramic product preparation method and foamed ceramic product |
| CN113698181A (en) * | 2021-08-23 | 2021-11-26 | 郑州瑞泰耐火科技有限公司 | Low-thermal-conductivity multilayer composite magnesia-hercynite brick and preparation process thereof |
| CN113582687A (en) * | 2021-08-27 | 2021-11-02 | 宜兴市兴贝耐火保温工程有限公司 | Durable refractory material for key parts of hazardous waste incinerator and preparation method thereof |
| CN113999021A (en) * | 2021-10-21 | 2022-02-01 | 辽宁科技大学 | Method for modifying impurities of magnesium-based refractory material with controllable morphology |
| CN113999021B (en) * | 2021-10-21 | 2023-01-03 | 辽宁科技大学 | Method for modifying impurities of magnesium-based refractory material with controllable morphology |
| CN115925433A (en) * | 2022-12-31 | 2023-04-07 | 海城利尔麦格西塔材料有限公司 | Forsterite composite brick and preparation method thereof |
| CN117362008A (en) * | 2023-10-13 | 2024-01-09 | 郑州金河源耐火材料有限公司 | Periclase-spinel and hollow sphere composite brick and preparation method thereof |
| CN117362008B (en) * | 2023-10-13 | 2024-04-26 | 郑州金河源耐火材料有限公司 | Periclase-spinel and hollow sphere composite brick and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101928153B (en) | Calcium hexaluminate and corundum composite porous light heat insulation refractory brick | |
| CN100486932C (en) | High-purity corundum pouring material containing nano calcium carbonate and preparation method thereof | |
| CN102674859B (en) | Refractory castable for kilneye and kiln head cover of rotary kiln | |
| CN101423401B (en) | Composite combining corundum based refractory materials | |
| WO2017101827A1 (en) | Magnesium aluminum spinel brick preparation method and magnesium aluminum spinel brick prepared using same | |
| CN101928135A (en) | Calcium hexaluminate lightweight refractory brick and preparation method thereof | |
| US8563083B2 (en) | Methods of use of calcium hexa aluminate refractory linings and/or chemical barriers in high alkali or alkaline environments | |
| CN108516849B (en) | Zirconium mullite brick for cement kiln and preparation method thereof | |
| CN101525245B (en) | High strength non-cement corundum castable material used in heating furnace | |
| CN102329143B (en) | Anti-skinning unshaped refractory material made of magnesium aluminate spinel used for cement kiln and preparation method and application of anti-skinning unshaped refractory material | |
| CN111620709B (en) | Silicon carbide composite refractory product containing rare earth oxide | |
| CN102167569A (en) | Bauxite-based nanometer composite oxide ceramic bond A1203-MgO-C unfired product and preparation method thereof | |
| CN114133257A (en) | Micro-nano hole heat insulation refractory material containing calcium hexaluminate and preparation method thereof | |
| CN113443898A (en) | Low-thermal-conductivity spinel refractory homogeneous brick and preparation method and application thereof | |
| WO2022237717A1 (en) | High-purity compact calcium hexa-aluminate-based refractory material and preparation method therefor | |
| WO2022237776A1 (en) | Ca6-based refractory material with medium volume density, preparation method therefor, and use thereof | |
| CN104671810A (en) | Compact aluminum-magnesium-calcium fire-resistant clinker and preparation method thereof | |
| CN103232250A (en) | Method for manufacturing silicon mullite brick by adopting bauxite tailings | |
| CN109160812A (en) | The low thermally conductive Mg-Al spinel brick of cement kiln | |
| CN108285349A (en) | A method of preparing cement kiln clinkering zone refractory material with fine iron breeze | |
| CN103951451B (en) | The manufacture method of high-strength wearable lining brick | |
| CN106810283B (en) | Mullite-chromium lightweight castable | |
| CN102391002B (en) | Magnesia-alumina spinel skinning-resistant non-amorphous refractory material for cement kiln as well as preparation method and application thereof | |
| CN101412629A (en) | Periclase-magnesium aluminate spinel composite refractory brick and technique for producing the same | |
| CN101434492A (en) | Large-sized special-shaped composite magnesium aluminate spinel product and technique for producing the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |