CN102603329A - Double-layered light composite brick and preparation method thereof - Google Patents
Double-layered light composite brick and preparation method thereof Download PDFInfo
- Publication number
- CN102603329A CN102603329A CN2012100791846A CN201210079184A CN102603329A CN 102603329 A CN102603329 A CN 102603329A CN 2012100791846 A CN2012100791846 A CN 2012100791846A CN 201210079184 A CN201210079184 A CN 201210079184A CN 102603329 A CN102603329 A CN 102603329A
- Authority
- CN
- China
- Prior art keywords
- hollow ball
- magnesium
- powder
- light composite
- layer
- 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.)
- Pending
Links
Images
Abstract
The invention provides a double-layered light composite brick and a preparation method thereof. The double-layered light composite brick is fine in abrasion resistance and heat-insulation performance and high in refractoriness and structural strength, a refractory and heat-insulation integrated function of the composite brick is realized, and an energy-saving effect of a rotary kiln is enhanced. The double-layered light composite brick comprises a magnesium-aluminum spinelle hollow ball layer and an alumina hollow ball layer, magnesium-aluminum spinelle hollow balls of the magnesium-aluminum spinelle hollow ball layer are made of one or a mixture of a plurality of materials including spinelle or magnesium-aluminum-chrome or magnesium-aluminum-titanium or magnesium spinelle zirconium, and alumina hollow balls of the alumina hollow ball layer are corundum hollow balls or alumina hollow balls or mixtures of the corundum hollow balls and the alumina hollow balls. The double-layered light composite brick not only has the characteristics of high strength of the spinelle hollow balls, high corrosion resistance of alkali materials, fine abrasion resistance and the like, but also has characteristics of light specific weight of the alumina hollow balls, fine heat-insulation performance, excellent anti-stripping performance and the like, and can meet requirements on structural strength support and heat insulation of a lime rotary kiln under service conditions.
Description
Technical field
The invention belongs to technical field of refractory materials, specifically, relate to a kind of double-deck light composite brick and preparation method thereof.
Background technology
In traditional energy exhaustion and today of new forms of energy slower development day by day; The most urgent current task is exploitation lightweight, high-strength, good thermal shock stability, use temperature is high and can satisfy the required inner lining material of light structures High Temperature Furnaces Heating Apparatus; Change that traditional ultrahigh-temperature kiln is big owing to the thermal capacity that adopts the heavy structure to exist, temperature rise rate is low, energy consumption is big, work-ing life is short, maintenance capacity in mid-term shortcoming such as big; Save energy; Cut down the consumption of energy, for building a resource-conserving society and the human kind sustainable development service.
Rotary kiln in process of production, the heat in the material passes to kliner coating, refractory brick and kiln cylinder body through radiation and conduction, the heat that is delivered to kiln cylinder body is dispersed in the atmosphere through the mode of radiation and convection current again.Because temperature drop what the thickness of thermal conductivity and material determines, the thermal conductivity of refractory brick and kiln cylinder body is bigger, and the thermosteresis of cylinder of rotary kiln all accounts for about 1/4th of hear rate, has caused the huge waste of the energy.At present, refractory brick is directly to build by laying bricks or stones on kiln cylinder body, good cooling energy-saving, in addition, the limit safety temperature of rotary kiln about 410 ℃, if near or surpass this temperature, will have potential safety hazard.The cylinder body outer wall temperature is higher, the kiln cylinder body heat radiation is increased, thereby strengthen heat consumption of clinker, causes that the grog unit cost increases; Very easily make the cylindrical shell expanded by heating on the other hand, cause kiln middle part support roller Wa Wendu to raise, especially using the normal operation of later stage or summer to bring big hidden danger to equipment.Cylindrical shell the is heat gain excessively damage probability of mechanical means, quickened barrel distortion, and barrel distortion has quickened the physical disturbance of liner, consequently falls brick, stop kiln, influences the operation factor of rotary kiln.Therefore if can barrel temperature reduced, reduce heat lost by radiation, and help maintenance of the equipment, improve operation rate at the composite brick of this position utilization structure strength support and heat insulating protection dual-use function.At present can the implementation structure strength support and the material of heat insulating protection dual-use function in the majority with alumina hollow ball product, alumina bubble lightweight brick commonly used at present adopts aluminum oxide powder and phosphoric acid combination, Al mostly
2O
3Content is more than 95%, and overall composition is more single, and the performance at aspects such as intensity, resistance to fouling, heat-shock resistance, wear resistancies has much room for improvement, and use range also is restricted.
Summary of the invention
The object of the present invention is to provide and a kind ofly have that wear resistance is good, refractoriness is high, structural strength reaches good double-deck light composite brick of thermal and insulating performance and preparation method thereof greatly; Realize alkali-resistivity performance, the refractory heat-insulating one function of composite brick, improve the rotary kiln energy-saving effect.
Double-deck light composite brick of the present invention comprises magnesium-aluminium spinel class hollow ball layer and alumina type hollow ball layer; The magnesium-aluminium spinel class hollow ball that said magnesium-aluminium spinel class hollow ball layer is adopted is one or more mixtures in spinel or Mg-Al-Cr or magnalium titanium matter or the magnesia spinel zirconium matter, and the alumina type hollow ball that said alumina type hollow ball layer is adopted is one or both in corundum bollow ball or the alumina hollow ball.
Further, said magnesium-aluminium spinel class hollow ball layer is that magnesium-aluminium spinel class hollow ball, the quality percentage composition of 0.2～5mm particle diameter of 35～65% are that 35～65% particle diameter is less than or equal to 325 purpose powders, wedding agent is processed by the quality percentage composition.
Further, said alumina type hollow ball layer is that alumina type hollow ball, the quality percentage composition of 0.2～5mm particle diameter of 35～65% are that 35～65% particle diameter is less than or equal to 325 purpose powders, wedding agent is processed by the quality percentage composition.
Further, said powder is one or more mixtures in aluminum oxide powder, lapis amiridis, magnesia powder, spinel powder, titanium oxide powder, chromium oxide powder, zirconia powder, chromium corundum powder, zircon corundum powder, the metatitanic acid aluminium powder.
Further, said wedding agent is a kind of in yellow starch gum solution, lignin sulfonic acid salts solution, phosphoric acid solution, the phosphate dihydrogen aluminum solution.
The preparation method of the above-mentioned double-deck light composite brick that the present invention proposes comprises the steps:
A: magnesium-aluminium spinel class hollow ball layer is got the raw materials ready: at first that magnesium-aluminium spinel class hollow ball and wedding agent is even in stirrer for mixing, and then the adding powder stirs back subsequent use;
B: alumina type hollow ball layer is got the raw materials ready: at first that alumina type hollow ball and wedding agent is even in stirrer for mixing, and then the adding powder stirs back subsequent use;
C: moulding: accomplish after the getting the raw materials ready of each layer, be divided into two portions to the material chamber of forming mould with dividing plate, after adding the material that is prepared in every layer, extract dividing plate out, adopt the vibrations extrusion forming according to size;
D: burn till: the base substrate after the moulding is taken out after 80～150 ℃ of oven dry, and loading of kiln was burnt till in 1600～1700 ℃ of insulations in 4～6 hours.
Double-deck light composite brick of the present invention had both had spinels hollow ball intensity height, alkali-resistivity material corrosion ability is strong; Characteristics such as wear resisting property is good; Have characteristics such as alumina type hollow ball proportion is little, thermal and insulating performance good, antistrip performance excellence again, can satisfy the structural strength of lime rotary kiln under working conditions and support and the heat insulating requirement.
Description of drawings
Fig. 1 is the sectional view of double-deck light composite brick of the present invention.
Embodiment
Contrast accompanying drawing below; Through the description to embodiment, the effect of mutual alignment between the shape of specific embodiments of the invention such as related each member, structure, the each several part and annexation, each several part and principle of work etc. are done further to specify.
Embodiment 1:
As shown in Figure 1, the double-deck light composite brick of present embodiment comprises magnesium-aluminium spinel class hollow ball layer 1 and alumina type hollow ball layer 2.
Wherein:
Feed particles grating and quality percentage composition thereof that magnesium-aluminium spinel class hollow ball layer 1 adopts are: the spinel hollow ball of 0.2～5mm particle diameter: 65%; Particle diameter is less than or equal to 325 purpose spinel powders: 35%; The wedding agent that is adopted when getting the raw materials ready is a yellow starch gum solution, and its weight is 8% of magnesium-aluminium spinel class hollow ball layer 1 weight.
Feed particles grating and quality percentage composition thereof that alumina type hollow ball layer 2 adopts are: the corundum bollow ball of 0.2～5mm particle diameter: 65%; Particle diameter is less than or equal to 325 purpose aluminum oxide powders: 35%; The wedding agent that is adopted when getting the raw materials ready is a phosphoric acid solution, and its weight is 8% of alumina type hollow ball layer 2 weight.
The preparation method of above-mentioned double-deck light composite brick may further comprise the steps:
A: magnesium-aluminium spinel class hollow ball layer is got the raw materials ready: at first that spinel hollow ball and yellow starch gum solution is even in stirrer for mixing, and then in stirrer, add spinel powder, the back that stirs is subsequent use;
B: alumina type hollow ball layer is got the raw materials ready: at first that corundum bollow ball and phosphoric acid solution is even in stirrer for mixing, and then in stirrer, add aluminum oxide powder, the back that stirs is subsequent use;
C: moulding: accomplish after the getting the raw materials ready of each layer, be divided into two portions to the material chamber of forming mould with dividing plate, after adding the material that is prepared in every layer, extract dividing plate out, adopt the vibrations extrusion forming according to size;
D: burn till: the base substrate after the moulding was taken out through 150 ℃ of bakings after 24 hours, and loading of kiln was burnt till in 1600 ℃ of insulations in 6 hours.
Embodiment 2:
As shown in Figure 1, the double-deck light composite brick of present embodiment comprises magnesium-aluminium spinel class hollow ball layer 1 and alumina type hollow ball layer 2.
Wherein:
Feed particles grating and quality percentage composition thereof that magnesium-aluminium spinel class hollow ball layer 1 adopts are: the spinel hollow ball of 0.2～5mm particle diameter: 35%; 0.2 the Mg-Al-Cr hollow ball of～5mm particle diameter: 15%; Particle diameter is less than or equal to 325 purpose spinel powders: 35%; Particle diameter is less than or equal to 325 purpose chromium oxide powders: 15%; The wedding agent that is adopted when getting the raw materials ready is the lignin sulfonic acid salts solution, and its weight is 12% of magnesium-aluminium spinel class hollow ball layer 1 weight.
Feed particles grating and quality percentage composition thereof that alumina type hollow ball layer 2 adopts are: the corundum bollow ball of 0.2～5mm particle diameter: 35%; 0.2 the alumina hollow ball of～5mm particle diameter: 15%; Particle diameter is less than or equal to 325 purpose chromium corundum powder: 32%; Particle diameter is less than or equal to 325 purpose lapis amiridiss: 18%; The wedding agent that is adopted when getting the raw materials ready is a phosphate dihydrogen aluminum solution, and its weight is 8% of alumina type hollow ball layer 2 weight.
The preparation method of above-mentioned double-deck light composite brick may further comprise the steps:
A: magnesium-aluminium spinel class hollow ball layer is got the raw materials ready: at first that spinel hollow ball, Mg-Al-Cr hollow ball and lignin sulfonic acid salts solution is even in stirrer for mixing, and then in stirrer, add spinel powder and chromium oxide powder, the back that stirs is subsequent use;
B: alumina type hollow ball layer is got the raw materials ready: at first that corundum bollow ball, alumina hollow ball and phosphate dihydrogen aluminum solution is even in stirrer for mixing, and then in stirrer, add spinel powder and chromium oxide powder, the back that stirs is subsequent use;
C: moulding: accomplish after the getting the raw materials ready of each layer, be divided into two portions to the material chamber of forming mould with dividing plate, after adding the material that is prepared in every layer, extract dividing plate out, adopt the vibrations extrusion forming according to size;
D: burn till: the base substrate after the moulding was taken out through 80 ℃ of bakings after 24 hours, and loading of kiln was burnt till in 1700 ℃ of insulations in 4 hours.
Embodiment 3:
As shown in Figure 1, the double-deck light composite brick of present embodiment comprises magnesium-aluminium spinel class hollow ball layer 1 and alumina type hollow ball layer 2.
Wherein:
Feed particles grating and quality percentage composition thereof that magnesium-aluminium spinel class hollow ball layer 1 adopts are: the spinel hollow ball of 0.2～5mm particle diameter: 25%; 0.2 the Mg-Al-Cr hollow ball of～5mm particle diameter: 15%; Particle diameter is less than or equal to 325 purpose metatitanic acid aluminium powders: 49%; Particle diameter is less than or equal to 325 purpose titanium oxide powders: 5%; Particle diameter is less than or equal to 325 purpose aluminum oxide powders: 6%; The wedding agent that is adopted when getting the raw materials ready is the lignin sulfonic acid salts solution, and its weight is 12% of magnesium-aluminium spinel class hollow ball layer 1 weight.
Feed particles grating and quality percentage composition thereof that alumina type hollow ball layer 2 adopts are: the corundum bollow ball of 0.2～5mm particle diameter: 25%; 0.2 the alumina hollow ball of～5mm particle diameter: 15%; Particle diameter is less than or equal to 325 purpose magnesia powders: 3%; Particle diameter is less than or equal to 325 purpose titanium oxide powders: 25%; Particle diameter is less than or equal to 325 purpose lapis amiridiss: 32%; The wedding agent that is adopted when getting the raw materials ready is a phosphate dihydrogen aluminum solution, and its weight is 8% of alumina type hollow ball layer 2 weight.
The preparation method of above-mentioned double-deck light composite brick may further comprise the steps:
A: magnesium-aluminium spinel class hollow ball layer is got the raw materials ready: at first that spinel hollow ball, magnalium titanium matter hollow ball and lignin sulfonic acid salts solution is even in stirrer for mixing; And then in stirrer, adding metatitanic acid aluminium powder, titanium oxide powder and aluminum oxide powder, the back that stirs is subsequent use;
B: alumina type hollow ball layer is got the raw materials ready: at first that corundum bollow ball, alumina hollow ball and phosphate dihydrogen aluminum solution is even in stirrer for mixing, and then in stirrer, add magnesia powder, titanium oxide powder and lapis amiridis, the back that stirs is subsequent use;
C: moulding: accomplish after the getting the raw materials ready of each layer, be divided into two portions to the material chamber of forming mould with dividing plate, after adding the material that is prepared in every layer, extract dividing plate out, adopt the vibrations extrusion forming according to size;
D: burn till: the base substrate after the moulding was taken out through 110 ℃ of bakings after 24 hours, and loading of kiln was burnt till in 1650 ℃ of insulations in 4 hours.
Embodiment 4:
As shown in Figure 1, the double-deck light composite brick of present embodiment comprises magnesium-aluminium spinel class hollow ball layer 1 and alumina type hollow ball layer 2.
Wherein:
Feed particles grating and quality percentage composition thereof that magnesium-aluminium spinel class hollow ball layer 1 adopts are: the magnesia spinel zirconium matter hollow ball of 0.2～5mm particle diameter: 35%; Particle diameter is less than or equal to 325 purpose spinel powders: 47%; Particle diameter is less than or equal to 325 purpose zirconia powders: 6%; Particle diameter is less than or equal to 325 purpose zircon corundum powder: 12%; The wedding agent that is adopted when getting the raw materials ready is the lignin sulfonic acid salts solution, and its weight is 10% of magnesium-aluminium spinel class hollow ball layer 1 weight.
Feed particles grating and quality percentage composition thereof that alumina type hollow ball layer 2 adopts are: the corundum bollow ball of 0.2～5mm particle diameter: 25%; 0.2 the alumina hollow ball of～5mm particle diameter: 10%; Particle diameter is less than or equal to 325 purpose magnesia powders: 4%; Particle diameter is less than or equal to 325 purpose aluminum oxide powders: 10%; Particle diameter is less than or equal to 325 purpose spinel powders: 51%; The wedding agent that is adopted when getting the raw materials ready is a yellow starch gum solution, and its weight is 8% of alumina type hollow ball layer 2 weight.
The preparation method of above-mentioned double-deck light composite brick may further comprise the steps:
A: magnesium-aluminium spinel class hollow ball layer is got the raw materials ready: at first that magnesia spinel zirconium matter hollow ball and lignin sulfonic acid salts solution is even in stirrer for mixing, and then in stirrer, add spinel powder, zirconia powder and zircon corundum powder, the back that stirs is subsequent use;
B: alumina type hollow ball layer is got the raw materials ready: at first that corundum bollow ball, alumina hollow ball and yellow starch gum solution is even in stirrer for mixing, and then in stirrer, add magnesia powder, aluminum oxide powder and spinel powder, the back that stirs is subsequent use;
C: moulding: accomplish after the getting the raw materials ready of each layer, be divided into two portions to the material chamber of forming mould with dividing plate, after adding the material that is prepared in every layer, extract dividing plate out, adopt the vibrations extrusion forming according to size;
D: burn till: the base substrate after the moulding was taken out through 110 ℃ of bakings after 24 hours, and loading of kiln was burnt till in 1650 ℃ of insulations in 10 hours.
Claims (6)
1. plant the double-deck light composite brick; It is characterized in that comprising magnesium-aluminium spinel class hollow ball layer and alumina type hollow ball layer; The magnesium-aluminium spinel class hollow ball that said magnesium-aluminium spinel class hollow ball layer is adopted is one or more mixtures in spinel or Mg-Al-Cr or magnalium titanium matter or the magnesia spinel zirconium matter, and the alumina type hollow ball that said alumina type hollow ball layer is adopted is one or both in corundum bollow ball or the alumina hollow ball.
2. according to the described double-deck light composite brick of claim 1, it is characterized in that said magnesium-aluminium spinel class hollow ball layer is that magnesium-aluminium spinel class hollow ball, the quality percentage composition of 0.2～5mm particle diameter of 35～65% is that 35～65% particle diameter is less than or equal to 325 purpose powders, wedding agent is processed by the quality percentage composition.
3. according to the described double-deck light composite brick of claim 1, it is characterized in that said alumina type hollow ball layer is that alumina type hollow ball, the quality percentage composition of 0.2～5mm particle diameter of 35～65% is that 35～65% particle diameter is less than or equal to 325 purpose powders, wedding agent is processed by the quality percentage composition.
4. according to claim 1 or 2 or 3 described double-deck light composite bricks, it is characterized in that said powder is one or more mixtures in aluminum oxide powder, lapis amiridis, magnesia powder, spinel powder, titanium oxide powder, chromium oxide powder, zirconia powder, chromium corundum powder, zircon corundum powder, the metatitanic acid aluminium powder.
5. according to claim 1 or 2 or 3 described double-deck light composite bricks, it is characterized in that said wedding agent is a kind of in yellow starch gum solution, lignin sulfonic acid salts solution, phosphoric acid solution, the phosphate dihydrogen aluminum solution.
6. according to the preparation method of the described double-deck light composite brick of claim 1, it is characterized in that comprising the steps:
A: magnesium-aluminium spinel class hollow ball layer is got the raw materials ready: at first that magnesium-aluminium spinel class hollow ball and wedding agent is even in stirrer for mixing, and then the adding powder stirs back subsequent use;
B: alumina type hollow ball layer is got the raw materials ready: at first that alumina type hollow ball and wedding agent is even in stirrer for mixing, and then the adding powder stirs back subsequent use;
C: moulding: accomplish after the getting the raw materials ready of each layer, be divided into two portions to the material chamber of forming mould with dividing plate, after adding the material that is prepared in every layer, extract dividing plate out, adopt the vibrations extrusion forming according to size;
D: burn till: the base substrate after the moulding is taken out after 80～150 ℃ of oven dry, and loading of kiln was burnt till in 1600～1700 ℃ of insulations in 4～10 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100791846A CN102603329A (en) | 2012-03-23 | 2012-03-23 | Double-layered light composite brick and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100791846A CN102603329A (en) | 2012-03-23 | 2012-03-23 | Double-layered light composite brick and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102603329A true CN102603329A (en) | 2012-07-25 |
Family
ID=46521187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100791846A Pending CN102603329A (en) | 2012-03-23 | 2012-03-23 | Double-layered light composite brick and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102603329A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106518107A (en) * | 2016-10-18 | 2017-03-22 | 中国科学院上海光学精密机械研究所 | Preparation method of layered high purity zircon refractory material |
| CN111848194A (en) * | 2020-08-11 | 2020-10-30 | 浙江大学 | High-strength light spinel hollow ball brick for kiln for producing lithium ion battery anode material and preparation method thereof |
| CN112010612A (en) * | 2020-09-07 | 2020-12-01 | 郑州四季火耐火材料有限公司 | Lime kiln prefabricated brick and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101738090A (en) * | 2009-12-17 | 2010-06-16 | 梁义德 | Composite brick for zinc smelting in electrothermal rotary kiln |
| 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 |
-
2012
- 2012-03-23 CN CN2012100791846A patent/CN102603329A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101738090A (en) * | 2009-12-17 | 2010-06-16 | 梁义德 | Composite brick for zinc smelting in electrothermal rotary kiln |
| 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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106518107A (en) * | 2016-10-18 | 2017-03-22 | 中国科学院上海光学精密机械研究所 | Preparation method of layered high purity zircon refractory material |
| CN106518107B (en) * | 2016-10-18 | 2019-06-21 | 中国科学院上海光学精密机械研究所 | It is layered the preparation method of high-purity aircon refractory |
| CN111848194A (en) * | 2020-08-11 | 2020-10-30 | 浙江大学 | High-strength light spinel hollow ball brick for kiln for producing lithium ion battery anode material and preparation method thereof |
| CN112010612A (en) * | 2020-09-07 | 2020-12-01 | 郑州四季火耐火材料有限公司 | Lime kiln prefabricated brick and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101863673B (en) | Magnesia-alumina spinel structure heat insulation integral composite brick and preparation method thereof | |
| CN101863675B (en) | High-alumina structure heat-insulation integrated composite brick and preparation method | |
| CN101857451B (en) | Heat-insulating integrated composite brick with alkaline structure and preparation method thereof | |
| CN102285813B (en) | Zirconium-corundum-mullite structure and thermal insulation integrated composite brick and preparation method thereof | |
| CN102424584B (en) | Magnesium-hercynite-structured heat-insulating integral composite brick and preparation method thereof | |
| CN102285807A (en) | Magnesium-spinel-zirconium structure and thermal insulation integrated composite brick and preparation method thereof | |
| CN102584303A (en) | Alkaline bubble brick and preparation method thereof | |
| CN102557698A (en) | Aluminum-containing hollow sphere light-weight brick and preparation method thereof | |
| CN103044050B (en) | Medium-density alkali-resistant brick for rotary kiln and preparation method thereof | |
| CN102603329A (en) | Double-layered light composite brick and preparation method thereof | |
| CN102285812A (en) | Magnesium-aluminium-titanium structure and thermal insulation integrated composite brick and preparation method thereof | |
| CN103058688A (en) | Middle-density magnesium-iron-aluminum spinel brick for revolving kiln and preparation method thereof | |
| CN103058687A (en) | Middle-density high-alumina brick for revolving kiln and preparation method of brick | |
| CN102285810B (en) | Forsterite structure and thermal insulation integrated composite brick and preparation method thereof | |
| CN102589292B (en) | Magnesium-titanium three-layer composite brick and production method thereof | |
| CN102603331A (en) | Magnesium zirconium three-layer composite brick and preparation method thereof | |
| CN102557699A (en) | Magnesium-spinel-zirconium three-layer composite brick and preparation method thereof | |
| CN102603332A (en) | Magnesium-iron-aluminum spinel three-layer composite brick and preparation method of composite brick | |
| CN102627461B (en) | Magnesium aluminum spinel three-layer composite brick and its preparation method | |
| CN102633510B (en) | Three-layer light-weight composite brick and preparation method thereof | |
| CN103044052B (en) | Medium-density magnesite-chrome brick for rotary kiln | |
| CN102589290B (en) | Forsterite four-layered composite brick and manufacturing method thereof | |
| CN102603330A (en) | Magnesium chrome three-layer composite brick and preparation method thereof | |
| CN102285808A (en) | Alkaliproof structure and thermal insulation integrated composite brick and preparation method thereof | |
| CN102285811A (en) | Corundum-spinel structure and thermal insulation integrated composite brick and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120725 |