CN102589292A - Magnesium-titanium three-layer composite brick and production method thereof - Google Patents
Magnesium-titanium three-layer composite brick and production method thereof Download PDFInfo
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- CN102589292A CN102589292A CN2012100792181A CN201210079218A CN102589292A CN 102589292 A CN102589292 A CN 102589292A CN 2012100792181 A CN2012100792181 A CN 2012100792181A CN 201210079218 A CN201210079218 A CN 201210079218A CN 102589292 A CN102589292 A CN 102589292A
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Abstract
The invention provides a magnesium-titanium three-layer composite brick and a production method thereof, wherein the magnesium-titanium three-layer composite brick is high in abrasion resistance, refractoriness, structural strength and heat insulation performance, functions fire resistance and heat insulation of the composite brick are integrated, and energy saving effect of a rotary kiln can be improved. The magnesium-titanium three-layer composite brick comprises a heavy operating layer made of magnesium-titanium materials, a light heat insulation layer made of electrically-smelted hollow balls and a transitional layer between the heavy operating layer and the light heat insulation layer, and the transitional layer is made of spinel, magnesium-aluminum-chromium, magnesium-aluminum-titanium or magnesium spinel zirconium. By means of the additional transitional layer of the magnesium-titanium three-layer composite brick, reaction between the heavy operating layer and the light heat insulation layer can be prevented, excellent fire resistance and heat insulation of the brick can be achieved while the service life of materials is not shortened, and accordingly reduction of energy and material consumption and fireproof material usage of the rotary kiln can be achieved, and the service life of equipment can be effectively prolonged.
Description
Technical field
The invention belongs to and belong to technical field of refractory materials, specifically, relate to three layers of composite brick of a kind of magnesium titanium matter and preparation method thereof.
Background technology
Along with the continuous appearance of manufacture of cement new technology, the manufacture of cement main process equipment develops to the maximization direction, increases output, improves the quality, saves energy and reduce the cost, reducing cost becomes the key that increases benefit in the production management.Existing refractory brick and insulating brick mostly are single material; Need during use the brick of various performances is used, if on the motionless equipment of relative fixed, like tunnel cave, down-draft kiln; Be used and meet the demands; But on the equipment of some relative motions,, be used and just be difficult to meet the demands like rotary kiln.Some producers and research unit study this and tackle key problems; And released the composite brick that some heavy material and light material combine, but, can't satisfy instructions for use because lightweight part-structure intensity is low excessively; And heavy part partly reacts because of the material problem with lightweight easily; Thereby having influence on properties of product and result of use, therefore do not promote on a large scale, is main with the heavy brick still.
Rotary kiln with the 10000t/d of conch group is an example; Before intermediate zone use spinel brick, clinkering zone to use magnesite-chrome brick since the thermal conductivity factor of preceding intermediate zone spinel brick and clinkering zone magnesite-chrome brick greatly (>=2.7W/mK), make the kiln cylinder body outside wall temperature higher (greatly about about 380 ℃; Can reach 420 ℃ during high temperature); The kiln cylinder body heat radiation is increased, thereby strengthen heat consumption of clinker, cause 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.The overheated damage probability that increases plant equipment of cylindrical shell, quickened barrel distortion, and barrel distortion has quickened the mechanical damage of liner, consequently falls brick, stop kiln, influences the running rate of cement rotary kiln.
In sum, manufacture of cement industry urgent need is a kind of at present has composite brick fire-resistant, heat insulation dual-use function, so that the barrel temperature at rotary kiln transition belt and clinkering zone position reduces, reduces radiation loss, improves plant maintenance, improves operation rate.
Summary of the invention
The object of the present invention is to provide a kind ofly to have that wearability is good, refractoriness is high, structural strength reaches good three layers of composite brick of magnesium titanium matter of thermal and insulating performance and preparation method thereof greatly, realize the refractory heat-insulating one function of composite brick, improve the rotary kiln energy-saving effect.
Three layers of composite brick of magnesium titanium matter of the present invention comprise with the magnesium titanium material and are the heavy working lining of feedstock production, are the transition zone between light heat insulation layer, heavy working lining and the light heat insulation layer of feedstock production with the electric smelting hollow ball, and said transition zone is that feedstock production forms with spinelle or magnalium chromium or magnalium titanium or magnesia spinel zirconium.
Above-mentioned heavy working lining fire-resistant effective, the good heat-insulation effect of light heat insulation layer, and transition zone can play transitional function, avoids heavy working lining and light heat insulation layer to produce reaction, influences result of use and life-span.
Further, for guaranteeing fire-resistant effect, said heavy working lining comprises the MgO that accounts for gross weight 80% at least, accounts for the TiO of gross weight 0.2～11%
2Other components that all the other are introduced for raw material.
Further; Be to guarantee that effect of heat insulation, the electric smelting hollow ball in the said light heat insulation layer are one or more the combinations in alumina hollow ball, corundum bollow ball, aluminium calcium hollow ball, aluminium titanium hollow ball, pink fused alumina hollow ball, fused alumina zirconia hollow ball, magnalium hollow ball, magnalium calcium hollow ball, magnesium calcium hollow ball, magnesium chromium hollow ball, magnesium titanium hollow ball, the magnesia hollow ball; Said alumina hollow ball contains the Al that accounts for gross weight 98% at least
2O
3Said corundum bollow ball contains the Al that accounts for gross weight 93% at least
2O
3Said aluminium calcium hollow ball contains the Al that accounts for gross weight 0.1～99.9%
2O
3, and contain the CaO that accounts for gross weight 0.1～99.9%; Said aluminium titanium hollow ball contains the Al that accounts for gross weight 40～99.9%
2O
3, and contain the TiO that accounts for gross weight 0.1～60%
2Said pink fused alumina hollow ball contains the Al that accounts for gross weight 70～99.9%
2O
3, and contain the Cr that accounts for gross weight 0.1～30%
2O
3Said fused alumina zirconia hollow ball contains the Al that accounts for gross weight 90～99.9%
2O
3, and contain the ZrO that accounts for gross weight 0.1～10%
2Said magnalium hollow ball contains the Al that accounts for gross weight 0.1～99.9%
2O
3, and contain the MgO that accounts for gross weight 0.1～99.9%; Said magnalium calcium hollow ball contains the CaO that accounts for gross weight 0.01～99.9%, and contains the Al that accounts for gross weight 0.01～99.9%
2O
3, and contain the MgO that accounts for gross weight 0.01～99.9%; Said magnesium calcium hollow ball contains the CaO that accounts for gross weight 0.1～99.9%, and contains the MgO that accounts for gross weight 0.01～99.9%; Said magnesium chromium hollow ball contains the MgO that accounts for gross weight 70～99.9%, and contains the Cr that accounts for gross weight 0.1～30%
2O
3Said magnesium titanium hollow ball contains and accounts for gross weight 90～99.9%MgO, and contains the TiO that accounts for gross weight 0.1～10%
2Said magnesia hollow ball contains the MgO that accounts for gross weight 95% at least.
Further, for guaranteeing to combine well between compact structure, each layer, said transition zone is raw materials used to be made up of particle and fine powder, or is made up of hollow ball and fine powder.
The preparation method of three layers of composite brick of above-mentioned magnesium titanium matter that the present invention proposes comprises the steps:
A: the heavy working lining is got the raw materials ready: earlier with raw material screening for being not more than 325 purpose powders and greater than 325 purpose particless of aggregates; Then powder being prepared the back in proportion mixes in ball mill; Again particles of aggregates and bond are mixed the powder that the back adding mixes, stir subsequent use after 10～30 minutes;
B: light heat insulation layer is got the raw materials ready: earlier with raw material screening for being not more than 325 purpose powders and, particles of aggregates being mixed with bond in proportion greater than 325 purpose particless of aggregates, it is subsequent use to add powder stirring 10～30 minutes then in proportion;
C: transition zone is got the raw materials ready: earlier with raw material screening for being not more than 325 purpose powders and, particles of aggregates being mixed with bond in proportion greater than 325 purpose particless of aggregates, it is subsequent use to add powder stirring 10～30 minutes then in proportion;
D: moulding: accomplish after the getting the raw materials ready of each layer, be divided into three layers to the material chamber of mould with dividing plate, after adding the material that is prepared in every layer, extract dividing plate out, adopt vibrations pressurization or mechanical pressing according to design size;
E: 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 3～8 hours.
Above-mentioned bond is one or more in yellow starch gum solution, liquor alumini chloridi, Adlerika, polyphosphate sodium solution, lignosulfonic acid salting liquid, phosphoric acid solution, phosphate dihydrogen aluminum solution, aluminum sulfate solution, aluminum phosphate solution, the magnesium phosphate solution, and different step can adopt identical or different bond.
Three layers of composite brick of magnesium titanium matter of the present invention have been introduced transition zone; Can avoid heavy working lining and light heat insulation layer to produce reaction; Make product have good refractory heat-insulating effect under the material situation in service life not reducing; Thereby played energy efficient, reduced material consumption and the effect that reduces rotary kiln refractory material consumption, can effectively prolong service life of equipment.
Description of drawings
Fig. 1 is the cutaway view of three layers of composite brick of magnesium titanium matter of the present invention.
The specific 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 operation principle etc. are done further to specify.
Embodiment 1:
As shown in Figure 1, three layers of composite brick of magnesium titanium matter of present embodiment comprise the transition zone 2 between heavy working lining 1, light heat insulation layer 3, heavy working lining 1 and the light heat insulation layer 3.
Wherein:
Feed particles grating and quality percentage composition thereof that heavy working lining 1 adopts are: particle diameter is greater than the magnesite clinker of 1mm: 37%; Particle diameter is less than 1mm and greater than 325 purpose magnesite clinkers: 20%; Particle diameter is less than 1mm and greater than 325 purpose high titanium slags: 12%; Particle diameter is 325 purpose Suzhou mud: 2%; Particle diameter is 325 purpose magnesite clinkers: 29%.The bond that is adopted when getting the raw materials ready is a yellow starch gum solution, and its weight is 2% of heavy working lining weight.
Feed particles grating and quality percentage composition thereof that transition zone 2 adopts are: particle diameter is the sintering spinelle hollow ball of 0.2～5mm: 55%; Particle diameter is 325 purpose sintering spinel powders: 45%.The bond that is adopted when getting the raw materials ready is a yellow starch gum solution, and its weight is 5% of transition zone weight.
Feed particles grating and quality percentage composition thereof that light heat insulation layer 3 adopts are: particle diameter is greater than 325 purpose aluminium titanium hollow balls: 17%; Particle diameter is greater than 325 purpose pink fused alumina hollow balls: 15%; Particle diameter is greater than 325 purpose fused alumina zirconia hollow balls: 8%; Particle diameter is greater than 325 purpose aluminium calcium hollow balls: 15%; Particle diameter is 325 purpose schmigels: 45%.The bond that is adopted when getting the raw materials ready is a liquor alumini chloridi, and its weight is 5% of light heat insulation layer weight.
The preparation method of three layers of composite brick of above-mentioned magnesium titanium matter may further comprise the steps:
A: the heavy working lining is got the raw materials ready: earlier with raw material screening for being not more than 325 purpose powders and greater than 325 purpose particless of aggregates; Then powder being prepared the back in proportion mixes in ball mill; Again particles of aggregates and bond are mixed the powder that the back adding mixes, stir subsequent use after 20 minutes;
B: light heat insulation layer is got the raw materials ready: aluminium titanium hollow ball, pink fused alumina hollow ball, fused alumina zirconia hollow ball, aluminium calcium hollow ball are mixed with bond in proportion, add schmigel then in proportion, stir 20 minutes subsequent use;
C: transition zone is got the raw materials ready: earlier with raw material screening for being not more than 325 purpose powders and, particles of aggregates being mixed with bond in proportion greater than 325 purpose particless of aggregates, it is subsequent use to add powder stirring 20 minutes then in proportion;
D: moulding: accomplish after the getting the raw materials ready of each layer; Be divided into three layers to the material chamber of mould according to design size with dividing plate; Wherein the height dimension ratio of heavy working lining, transition zone and light heat insulation layer is 1:0.5:1; After adding the material that is prepared in every layer, extract dividing plate out, adopt the vibrations extrusion forming;
F: burn till: the base substrate after the moulding is taken out after 110 ℃ of oven dry, and loading of kiln was burnt till in 1600 ℃ of insulations in 4 hours.
Embodiment 2:
As shown in Figure 1, three layers of composite brick of magnesium titanium matter of present embodiment comprise the transition zone 2 between heavy working lining 1, light heat insulation layer 3, heavy working lining 1 and the light heat insulation layer 3.
Wherein:
Feed particles grating and quality percentage composition thereof that heavy working lining 1 adopts are: particle diameter is greater than the fused magnesite of 1mm: 38.8%; Particle diameter is less than 1mm and greater than 325 purpose fused magnesites: 33%; Particle diameter is 325 purpose Suzhou mud: 4%; Particle diameter is 325 purpose fused magnesites: 24%; Particle diameter is 325 purpose titanium white powders: 0.2%.The bond that is adopted when getting the raw materials ready is an Adlerika, and its weight is 3% of heavy working lining weight.
Feed particles grating and quality percentage composition thereof that transition zone 2 adopts are: particle diameter is the magnalium chromium hollow ball of 0.2～5mm: 55%; Particle diameter is 325 purpose sintering spinel powders: 45%.The bond that is adopted when getting the raw materials ready is an Adlerika, and its weight is 5% of transition zone weight.
Feed particles grating and quality percentage composition thereof that light heat insulation layer 3 adopts are: particle diameter is greater than 325 purpose magnesium chromium hollow balls: 55%; Particle diameter is 325 purpose spinelle micro mists: 45%.The bond that is adopted when getting the raw materials ready is a polyphosphate sodium solution, and its weight is 6% of light heat insulation layer weight.
The preparation method of three layers of composite brick of above-mentioned magnesium titanium matter may further comprise the steps:
A: the heavy working lining is got the raw materials ready: earlier with raw material screening for being not more than 325 purpose powders and greater than 325 purpose particless of aggregates; Then powder being prepared the back in proportion mixes in ball mill; Again particles of aggregates and bond are mixed the powder that the back adding mixes, stir subsequent use after 10 minutes;
B: light heat insulation layer is got the raw materials ready: magnesium chromium hollow ball is mixed with bond in proportion, adds the spinelle micro mist then in proportion, stir 30 minutes subsequent use;
C: transition zone is got the raw materials ready: earlier with raw material screening for being not more than 325 purpose powders and, particles of aggregates being mixed with bond in proportion greater than 325 purpose particless of aggregates, it is subsequent use to add powder stirring 10 minutes then in proportion;
D: moulding: accomplish after the getting the raw materials ready of each layer; Be divided into three layers to the material chamber of mould according to design size with dividing plate; Wherein the height dimension ratio of heavy working lining, transition zone and light heat insulation layer is 1:0.2:1; After adding the material that is prepared in every layer, extract dividing plate out, adopt the vibrations extrusion forming;
F: burn till: the base substrate after the moulding is taken out after 150 ℃ of oven dry, and loading of kiln was burnt till in 1700 ℃ of insulations in 3 hours.
Embodiment 3:
As shown in Figure 1, three layers of composite brick of magnesium titanium matter of present embodiment comprise the transition zone 2 between heavy working lining 1, light heat insulation layer 3, heavy working lining 1 and the light heat insulation layer 3.
Wherein:
Feed particles grating and quality percentage composition thereof that heavy working lining 1 adopts are: particle diameter is greater than the fused magnesite of 1mm: 38.9%; Particle diameter is less than 1mm and greater than 325 purpose fused magnesites: 32%; Particle diameter is 325 purpose Suzhou mud: 3%; Particle diameter is 325 purpose fused magnesites: 21%; Particle diameter is 325 purpose titanium white powders: 5.1%.The bond that is adopted when getting the raw materials ready is an Adlerika, and its weight is 2% of heavy working lining weight.
Feed particles grating and quality percentage composition thereof that transition zone 2 adopts are: particle diameter is the electric melting magnesium-aluminium titanium hollow ball of 0.2～5mm: 60%; Particle diameter is 325 purpose sintering spinel powders: 40%.The bond that is adopted when getting the raw materials ready is the lignosulfonic acid salting liquid, and its weight is 5% of transition zone weight.
Feed particles grating and quality percentage composition thereof that light heat insulation layer 3 adopts are: particle diameter is greater than 325 purpose alumina hollow balls: 55%; Particle diameter is 325 purpose schmigels: 45%.The bond that is adopted when getting the raw materials ready is a phosphoric acid solution, and its weight is 6% of light heat insulation layer weight.
The preparation method of three layers of composite brick of above-mentioned magnesium titanium matter may further comprise the steps:
A: the heavy working lining is got the raw materials ready: earlier with raw material screening for being not more than 325 purpose powders and greater than 325 purpose particless of aggregates; Then powder being prepared the back in proportion mixes in ball mill; Again particles of aggregates and bond are mixed the powder that the back adding mixes, stir subsequent use after 30 minutes;
B: light heat insulation layer is got the raw materials ready: alumina hollow ball is mixed with bond in proportion, adds schmigel then in proportion, stir 30 minutes subsequent use;
C: transition zone is got the raw materials ready: earlier with raw material screening for being not more than 325 purpose powders and, particles of aggregates being mixed with bond in proportion greater than 325 purpose particless of aggregates, it is subsequent use to add powder stirring 30 minutes then in proportion;
D: moulding: accomplish after the getting the raw materials ready of each layer; Be divided into three layers to the material chamber of mould according to design size with dividing plate; Wherein the height dimension ratio of heavy working lining, transition zone and light heat insulation layer is 1:0.3:1; After adding the material that is prepared in every layer, extract dividing plate out, adopt the vibrations extrusion forming;
F: burn till: the base substrate after the moulding is taken out after 80 ℃ of oven dry, and loading of kiln was burnt till in 1700 ℃ of insulations in 3 hours.
Embodiment 4:
As shown in Figure 1, three layers of composite brick of magnesium titanium matter of present embodiment comprise the transition zone 2 between heavy working lining 1, light heat insulation layer 3, heavy working lining 1 and the light heat insulation layer 3.
Wherein:
Feed particles grating and quality percentage composition thereof that heavy working lining 1 adopts are: particle diameter is greater than the magnesite clinker of 1mm: 37%; Particle diameter is less than 1mm and greater than 325 purpose magnesite clinkers: 20%; Particle diameter is less than 1mm and greater than 325 purpose high titanium slags: 12%; Particle diameter is 325 purpose Suzhou mud: 2%; Particle diameter is 325 purpose magnesite clinkers: 29%.The bond that is adopted when getting the raw materials ready is a yellow starch gum solution, and its weight is 2% of heavy working lining weight.
Feed particles grating and quality percentage composition thereof that transition zone 2 adopts are: particle diameter is the electric-melting magnesium Zirconium spinel hollow ball of 0.2～5mm: 60%; Particle diameter is 325 purpose sintering spinel powders: 40%.The bond that is adopted when getting the raw materials ready is the lignosulfonic acid salting liquid, and its weight is 5% of transition zone weight.
Feed particles grating and quality percentage composition thereof that light heat insulation layer 3 adopts are: particle diameter is greater than 325 purpose corundum bollow balls: 55%; Particle diameter is 325 purpose schmigels: 45%.The bond that is adopted when getting the raw materials ready is a phosphate dihydrogen aluminum solution, and its weight is 5% of light heat insulation layer weight.
The preparation method of three layers of composite brick of above-mentioned magnesium titanium matter may further comprise the steps:
A: the heavy working lining is got the raw materials ready: earlier with raw material screening for being not more than 325 purpose powders and greater than 325 purpose particless of aggregates; Then powder being prepared the back in proportion mixes in ball mill; Again particles of aggregates and bond are mixed the powder that the back adding mixes, stir subsequent use after 20 minutes;
B: light heat insulation layer is got the raw materials ready: corundum bollow ball is mixed with bond in proportion, adds schmigel then in proportion, stir 20 minutes subsequent use;
C: transition zone is got the raw materials ready: earlier with raw material screening for being not more than 325 purpose powders and, particles of aggregates being mixed with bond in proportion greater than 325 purpose particless of aggregates, it is subsequent use to add powder stirring 20 minutes then in proportion;
D: moulding: accomplish after the getting the raw materials ready of each layer; Be divided into three layers to the material chamber of mould according to design size with dividing plate; Wherein the height dimension ratio of heavy working lining, transition zone and light heat insulation layer is 1:0.5:1; After adding the material that is prepared in every layer, extract dividing plate out, adopt the vibrations extrusion forming;
F: burn till: the base substrate after the moulding is taken out after 150 ℃ of oven dry, and loading of kiln was burnt till in 1600 ℃ of insulations in 5 hours.
Embodiment 5:
As shown in Figure 1, three layers of composite brick of magnesium titanium matter of present embodiment comprise the transition zone 2 between heavy working lining 1, light heat insulation layer 3, heavy working lining 1 and the light heat insulation layer 3.
Wherein:
Feed particles grating and quality percentage composition thereof that heavy working lining 1 adopts are: particle diameter is greater than the fused magnesite of 1mm: 38.8%; Particle diameter is less than 1mm and greater than 325 purpose fused magnesites: 33%; Particle diameter is 325 purpose Suzhou mud: 4%; Particle diameter is 325 purpose fused magnesites: 24%; Particle diameter is 325 purpose titanium white powders: 0.2%.The bond that is adopted when getting the raw materials ready is an Adlerika, and its weight is 2% of heavy working lining weight.
Feed particles grating and quality percentage composition thereof that transition zone 2 adopts are: particle diameter is greater than the electric smelting spinelle of 1mm: 50%; Particle diameter is less than 1mm and greater than 325 purpose electric smelting spinelles: 20%; Particle diameter is 325 purpose electric smelting spinel powders: 30%.The bond that is adopted when getting the raw materials ready is an Adlerika, and its weight is 2% of transition zone weight.
Feed particles grating and quality percentage composition thereof that light heat insulation layer 3 adopts are: particle diameter is greater than 325 purpose alumina hollow balls: 55%; Particle diameter is 325 purpose schmigels: 45%.The bond that is adopted when getting the raw materials ready is an aluminum sulfate solution, and its weight is 6% of light heat insulation layer weight.
The preparation method of three layers of composite brick of above-mentioned magnesium titanium matter may further comprise the steps:
A: the heavy working lining is got the raw materials ready: earlier with raw material screening for being not more than 325 purpose powders and greater than 325 purpose particless of aggregates; Then powder being prepared the back in proportion mixes in ball mill; Again particles of aggregates and bond are mixed the powder that the back adding mixes, stir subsequent use after 20 minutes;
B: light heat insulation layer is got the raw materials ready: alumina hollow ball is mixed with bond in proportion, adds schmigel then in proportion, stir 20 minutes subsequent use;
C: transition zone is got the raw materials ready: earlier with raw material screening for being not more than 325 purpose powders and, particles of aggregates being mixed with bond in proportion greater than 325 purpose particless of aggregates, it is subsequent use to add powder stirring 20 minutes then in proportion;
D: moulding: accomplish after the getting the raw materials ready of each layer; Be divided into three layers to the material chamber of mould according to design size with dividing plate; Wherein the height dimension ratio of heavy working lining, transition zone and light heat insulation layer is 1:0.3:1; After adding the material that is prepared in every layer, extract dividing plate out, adopt the vibrations extrusion forming;
F: burn till: the base substrate after the moulding is taken out after 80 ℃ of oven dry, and loading of kiln was burnt till in 1700 ℃ of insulations in 3 hours.
Embodiment 6:
As shown in Figure 1, three layers of composite brick of magnesium titanium matter of present embodiment comprise the transition zone 2 between heavy working lining 1, light heat insulation layer 3, heavy working lining 1 and the light heat insulation layer 3.
Wherein:
Feed particles grating and quality percentage composition thereof that heavy working lining 1 adopts are: particle diameter is greater than the fused magnesite of 1mm: 38.9%; Particle diameter is less than 1mm and greater than 325 purpose fused magnesites: 32%; Particle diameter is 325 purpose Suzhou mud: 3%; Particle diameter is 325 purpose electric-melting magnesium powder: 21%; Particle diameter is 325 purpose titanium white powders: 5.1%.The bond that is adopted when getting the raw materials ready is a yellow starch gum solution, and its weight is 2% of heavy working lining weight.
Feed particles grating and quality percentage composition thereof that transition zone 2 adopts are: particle diameter is the sintering spinelle hollow ball of 0.2～5mm: 55%; Particle diameter is 325 purpose sintering spinel powders: 45%.The bond that is adopted when getting the raw materials ready is a yellow starch gum solution, and its weight is 5% of transition zone weight.
Feed particles grating and quality percentage composition thereof that light heat insulation layer 3 adopts are: particle diameter is greater than 325 purpose corundum bollow balls: 55%; Particle diameter is 325 purpose schmigels: 45%.The bond that is adopted when getting the raw materials ready is an aluminum phosphate solution, and its weight is 5% of light heat insulation layer weight.
The preparation method of three layers of composite brick of above-mentioned magnesium titanium matter may further comprise the steps:
A: the heavy working lining is got the raw materials ready: earlier with raw material screening for being not more than 325 purpose powders and greater than 325 purpose particless of aggregates; Then powder being prepared the back in proportion mixes in ball mill; Again particles of aggregates and bond are mixed the powder that the back adding mixes, stir subsequent use after 20 minutes;
B: light heat insulation layer is got the raw materials ready: corundum bollow ball is mixed with bond in proportion, adds schmigel then in proportion, stir 20 minutes subsequent use;
C: transition zone is got the raw materials ready: earlier with raw material screening for being not more than 325 purpose powders and, particles of aggregates being mixed with bond in proportion greater than 325 purpose particless of aggregates, it is subsequent use to add powder stirring 20 minutes then in proportion;
D: moulding: accomplish after the getting the raw materials ready of each layer; Be divided into three layers to the material chamber of mould according to design size with dividing plate; Wherein the height dimension ratio of heavy working lining, transition zone and light heat insulation layer is 1:0.5:1; After adding the material that is prepared in every layer, extract dividing plate out, adopt the vibrations extrusion forming;
F: burn till: the base substrate after the moulding is taken out after 150 ℃ of oven dry, and loading of kiln was burnt till in 1600 ℃ of insulations in 5 hours.
Embodiment 7:
As shown in Figure 1, three layers of composite brick of magnesium titanium matter of present embodiment comprise the transition zone 2 between heavy working lining 1, light heat insulation layer 3, heavy working lining 1 and the light heat insulation layer 3.
Wherein:
Feed particles grating and quality percentage composition thereof that heavy working lining 1 adopts are: particle diameter is greater than the magnesite clinker of 1mm: 37%; Particle diameter is less than 1mm and greater than 325 purpose magnesite clinkers: 20 %; Particle diameter is less than 1mm and greater than 325 purpose high titanium slags: 12%; Particle diameter is 325 purpose Suzhou mud: 2%; Particle diameter is 325 purpose magnesite clinkers: 29%.The bond that is adopted when getting the raw materials ready is the lignosulfonic acid salting liquid, and its weight is 2% of heavy working lining weight.
Feed particles grating and quality percentage composition thereof that transition zone 2 adopts are: particle diameter is the electric smelting spinelle hollow ball of 0.2～5mm: 60%; Particle diameter is 325 purpose sintering spinel powders: 40%.The bond that is adopted when getting the raw materials ready is the lignosulfonic acid salting liquid, and its weight is 5% of transition zone weight.
Feed particles grating and quality percentage composition thereof that light heat insulation layer 3 adopts are: particle diameter is greater than 325 purpose magnesium titanium hollow balls: 20%; Particle diameter is greater than 325 purpose magnesia hollow balls: 40%; Particle diameter is 325 purpose schmigels: 40%.The bond that is adopted when getting the raw materials ready is a magnesium phosphate solution, and its weight is 5% of light heat insulation layer weight.
The preparation method of three layers of composite brick of above-mentioned magnesium titanium matter may further comprise the steps:
A: the heavy working lining is got the raw materials ready: earlier with raw material screening for being not more than 325 purpose powders and greater than 325 purpose particless of aggregates; Then powder being prepared the back in proportion mixes in ball mill; Again particles of aggregates and bond are mixed the powder that the back adding mixes, stir subsequent use after 20 minutes;
B: light heat insulation layer is got the raw materials ready: magnesium titanium hollow ball, magnesia hollow ball are mixed with bond in proportion, add schmigel then in proportion, stir 20 minutes subsequent use;
C: transition zone is got the raw materials ready: earlier with raw material screening for being not more than 325 purpose powders and, particles of aggregates being mixed with bond in proportion greater than 325 purpose particless of aggregates, it is subsequent use to add powder stirring 20 minutes then in proportion;
D: moulding: accomplish after the getting the raw materials ready of each layer; Be divided into three layers to the material chamber of mould according to design size with dividing plate; Wherein the height dimension ratio of heavy working lining, transition zone and light heat insulation layer is 1:0.5:1; After adding the material that is prepared in every layer, extract dividing plate out, adopt the vibrations extrusion forming;
F: burn till: the base substrate after the moulding is taken out after 110 ℃ of oven dry, and loading of kiln was burnt till in 1600 ℃ of insulations in 4 hours.
Claims (6)
1. three layers of composite brick of a magnesium titanium matter; It is characterized in that comprising with the magnesium titanium material being the heavy working lining of feedstock production, being the transition zone between light heat insulation layer, heavy working lining and the light heat insulation layer of feedstock production with the electric smelting hollow ball that said transition zone is that feedstock production forms with spinelle or magnalium chromium or magnalium titanium or magnesia spinel zirconium.
2. three layers of composite brick of magnesium titanium matter according to claim 1 is characterized in that said heavy working lining comprises the MgO that accounts for gross weight 80% at least, accounts for the TiO of gross weight 0.2～11%
2
3. three layers of composite brick of magnesium titanium matter according to claim 1 is characterized in that electric smelting hollow ball in the said light heat insulation layer is one or more the combination in alumina hollow ball, corundum bollow ball, aluminium calcium hollow ball, aluminium titanium hollow ball, pink fused alumina hollow ball, fused alumina zirconia hollow ball, magnalium hollow ball, magnalium calcium hollow ball, magnesium calcium hollow ball, magnesium chromium hollow ball, magnesium titanium hollow ball, the magnesia hollow ball; Said alumina hollow ball contains the Al that accounts for gross weight 98% at least
2O
3Said corundum bollow ball contains the Al that accounts for gross weight 93% at least
2O
3Said aluminium calcium hollow ball contains the Al that accounts for gross weight 0.1～99.9%
2O
3, and contain the CaO that accounts for gross weight 0.1～99.9%; Said aluminium titanium hollow ball contains the Al that accounts for gross weight 40～99.9%
2O
3, and contain the TiO that accounts for gross weight 0.1～60%
2Said pink fused alumina hollow ball contains the Al that accounts for gross weight 70～99.9%
2O
3, and contain the Cr that accounts for gross weight 0.1～30%
2O
3Said fused alumina zirconia hollow ball contains the Al that accounts for gross weight 90～99.9%
2O
3, and contain the ZrO that accounts for gross weight 0.1～10%
2Said magnalium hollow ball contains the Al that accounts for gross weight 0.1～99.9%
2O
3, and contain the MgO that accounts for gross weight 0.1～99.9%; Said magnalium calcium hollow ball contains the CaO that accounts for gross weight 0.01～99.9%, and contains the Al that accounts for gross weight 0.01～99.9%
2O
3, and contain the MgO that accounts for gross weight 0.01～99.9%; Said magnesium calcium hollow ball contains the CaO that accounts for gross weight 0.1～99.9%, and contains the MgO that accounts for gross weight 0.01～99.9%; Said magnesium chromium hollow ball contains the MgO that accounts for gross weight 70～99.9%, and contains the Cr that accounts for gross weight 0.1～30%
2O
3Said magnesium titanium hollow ball contains and accounts for gross weight 90～99.9%MgO, and contains the TiO that accounts for gross weight 0.1～10%
2Said magnesia hollow ball contains the MgO that accounts for gross weight 95% at least.
4. according to claim 1 or three layers of composite brick of 2 or 3 described magnesium titanium matter, it is characterized in that said transition zone is raw materials used to form, or form by hollow ball and fine powder by particle and fine powder.
5. the preparation method of three layers of composite brick of magnesium titanium matter according to claim 1 is characterized in that comprising the steps:
A: the heavy working lining is got the raw materials ready: earlier with raw material screening for being not more than 325 purpose powders and greater than 325 purpose particless of aggregates; Then powder being prepared the back in proportion mixes in ball mill; Again particles of aggregates and bond are mixed the powder that the back adding mixes, stir subsequent use after 10～30 minutes;
B: light heat insulation layer is got the raw materials ready: earlier with raw material screening for being not more than 325 purpose powders and, particles of aggregates being mixed with bond in proportion greater than 325 purpose particless of aggregates, it is subsequent use to add powder stirring 10～30 minutes then in proportion;
C: transition zone is got the raw materials ready: earlier with raw material screening for being not more than 325 purpose powders and, particles of aggregates being mixed with bond in proportion greater than 325 purpose particless of aggregates, it is subsequent use to add powder stirring 10～30 minutes then in proportion;
D: moulding: accomplish after the getting the raw materials ready of each layer, be divided into three layers to the material chamber of mould with dividing plate, after adding the material that is prepared in every layer, extract dividing plate out, adopt vibrations pressurization or mechanical pressing according to design size;
E: 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 3～8 hours.
6. the preparation method of three layers of composite brick of magnesium titanium matter according to claim 5; It is characterized in that said bond is one or more in yellow starch gum solution, liquor alumini chloridi, Adlerika, polyphosphate sodium solution, lignosulfonic acid salting liquid, phosphoric acid solution, phosphate dihydrogen aluminum solution, aluminum sulfate solution, aluminum phosphate solution, the magnesium phosphate solution, and different step can adopt identical or different bond.
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| CN103449822A (en) * | 2012-06-05 | 2013-12-18 | 苏州罗卡节能科技有限公司 | Three-layer composite brick and preparation method thereof |
| CN103528376A (en) * | 2013-11-06 | 2014-01-22 | 宁夏新航能源环境科技有限公司 | Energy-saving refractory brick |
| CN104567412A (en) * | 2013-10-11 | 2015-04-29 | 宁夏琪凯节能设备有限公司 | Energy-saving composite refractory brick |
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| CN102589292B (en) | 2014-04-02 |
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Effective date of registration: 20171023 Address after: 063000, No. 811, building 2401, Guangming LU Hong Kong District, Tangshan City Road, Hebei Patentee after: Zhang Cuiying Address before: 215000 Jiangsu city of Suzhou province high tech Industrial Development Zone, kolding Road No. 78 Patentee before: Suzhou Low Carbon Energy Saving Technology Co., Ltd. |
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