CN102589291A

CN102589291A - Four-layer composite brick and preparation method thereof

Info

Publication number: CN102589291A
Application number: CN2012100791831A
Authority: CN
Inventors: 王家邦
Original assignee: Suzhou Low Carbon Energy Saving Technology Co Ltd
Current assignee: Suzhou Low Carbon Energy Saving Technology Co Ltd
Priority date: 2012-03-23
Filing date: 2012-03-23
Publication date: 2012-07-18
Anticipated expiration: 2032-03-23
Also published as: CN102589291B

Abstract

The invention provides a four-layer composite brick which is good in abrasion resistance, high in fire resistance and structural strength and good in thermal insulation and a preparation method thereof. The integral function of fire resistance and thermal insulation of the composite brick is achieved, and the energy-saving effect of a rotary kiln is improved. The four-layer composite brick comprises a heavy working layer made of a fireproof material serving as a raw material, a first transition layer made of a magnesium material serving as a raw material, a second transition layer and a light thermal insulation layer, wherein the second transition layer is made of spinel, or magnesium aluminum chromium, or a magnesia spinel zircon material serving as a raw material, and the light thermal insulation layer is made of an electric melting hollow sphere serving as a raw material. The transition layers are introduced to the four-layer composite brick, reaction of the heavy working layer and the light thermal insulation layer can be avoided, products have good fireproof and thermal-insulating effects under the condition that the service lives of the materials are not shortened, the effects of reducing energy consumption, material consumption and the using quantity of a fireproof material of the rotary kiln are achieved, and the service life of equipment can be effectively prolonged.

Description

A kind of four layers of composite brick and preparation method thereof

Technical field

The invention belongs to technical field of refractory materials, specifically, relate to a kind of four layers of composite brick 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 four layers of good composite brick 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.

Four layers of composite brick of the present invention comprise with the refractory material being the heavy working lining of feedstock production; With the magnesian is first transition zone of feedstock production; With spinelle or magnalium chromium or magnalium titanium or magnesia spinel zirconium material is second transition zone of feedstock production, is the light heat insulation layer of feedstock production with the electric smelting hollow ball.

Above-mentioned heavy working lining fire-resistant effective, the good heat-insulation effect of light heat insulation layer, and first transition zone, second transition zone can play transitional function, avoid heavy working lining and light heat insulation layer to produce reaction, influence result of use and life-span.

Further, for guaranteeing fire-resistant effect, said refractory material be that dolomite matter, magnesium are calcareous, the magnesium zirconium is calcareous or the forsterite material in a kind of.

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 first transition zone and second transition zone are 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 above-mentioned four layers of composite brick 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: first 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: second 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;

E: moulding: accomplish after the getting the raw materials ready of each layer, be divided into four 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;

F: 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.

Said bond is one or more in liquid paraffin, industrial lignosulfonic acid salting liquid, Adlerika, phosphoric acid solution, methocel solution, yellow starch gum solution, phosphate dihydrogen aluminum solution, aluminum phosphate solution, spent pulping liquor, aluminium glue, the aluminum sulfate solution, and different step can adopt identical or different bond.

Four layers of composite brick 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 four layers of composite brick 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, four layers of composite brick of present embodiment have stacked gradually heavy working lining 1, first transition zone 2, second transition zone 3, light heat insulation layer 4 from the bottom to top.

Wherein:

Feed particles grating and quality percentage composition thereof that heavy working lining 1 adopts are: particle diameter is 1～3mm dolomite sand: 40%; Particle diameter is less than 1mm and greater than 325 purpose dolomite sands: 25%; Particle diameter is 325 purpose Dianbai marble sand: 7.7%; Particle diameter is 325 purpose fused magnesites: 27.3%.

Feed particles grating and quality percentage composition that first transition zone 2 adopts are: particle diameter is greater than the magnesite clinker of 1mm: 45%; Particle diameter is not more than 1mm and greater than 325 purpose magnesite clinkers: 25%; Particle diameter is 325 purpose sintering magnesium powder: 30%.

Feed particles grating and quality percentage composition thereof that second transition zone 3 adopts are following: particle diameter is greater than the sintering spinelle of 1mm: 45%; Particle diameter is not more than 1mm and greater than 325 purpose sintering spinelles: 25%; Particle diameter is 325 purpose sintering spinel powders: 30%.

Feed particles grating and quality percentage composition thereof that light heat insulation layer 4 adopts are: particle diameter is greater than 325 purpose corundum bollow balls: 55%, particle diameter is 325 purpose spinelle micro mists: 45%.

The preparation method of above-mentioned four layers of composite brick 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: corundum bollow ball is mixed with bond in proportion, adds the spinelle micro mist then in proportion, stir 30 minutes subsequent use;

C: first 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: second 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;

E: moulding: accomplish after the getting the raw materials ready of each layer; Be divided into four layers to the material chamber of mould according to design size with dividing plate; Wherein the height dimension ratio of heavy working lining, first transition zone, second transition zone and light heat insulation layer is 1:0.2:0.2:1; 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.

Used bond is a liquid paraffin in above-mentioned A～D step; Wherein the weight of used liquid paraffin is 5% of heavy working lining weight in the A step; The weight of used liquid paraffin is 6% of light heat insulation layer weight in the B step; The weight of used liquid paraffin is 3% of the first transition zone weight in the C step, and the weight of used liquid paraffin is 3% of the second transition zone weight in the D step.

Embodiment 2:

Wherein:

Feed particles grating and quality percentage composition thereof that heavy working lining 1 adopts are: particle diameter is the dolomite sand of 1～3mm: 40%; Particle diameter is less than 1mm and greater than 325 purpose dolomite sands: 25.5%; Particle diameter is less than 1mm and greater than 325 purpose fused magnesites: 9.5%; Particle diameter is 325 purpose fused magnesites: 25%.

Feed particles grating and quality percentage composition thereof that first transition zone 2 adopts are: particle diameter is greater than the magnesite clinker of 1mm: 45%; Particle diameter is not more than 1mm and greater than 325 purpose magnesite clinkers: 25%; Particle diameter is 325 purpose sintering magnesium powder: 30%.

Feed particles grating and quality percentage composition thereof that second transition zone 3 adopts are: particle diameter is greater than the electric melting magnesium-aluminium chromium hollow ball of 1mm: 70%; Particle diameter is 325 purpose electric smelting spinel powders: 30%.

Feed particles grating and quality percentage composition thereof that light heat insulation layer 4 adopts are: particle diameter is greater than 325 purpose alumina hollow balls: 35%; Particle diameter is greater than 325 purpose aluminium titanium hollow balls: 20%; Particle diameter is 325 purpose schmigels: 45%.

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, aluminium titanium hollow ball are mixed with bond in proportion, add schmigel then in proportion, stir 30 minutes subsequent use;

C: first 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: second 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;

E: moulding: accomplish after the getting the raw materials ready of each layer; Be divided into four layers to the material chamber of mould according to design size with dividing plate; Wherein the height dimension ratio of heavy working lining, first transition zone, second transition zone and light heat insulation layer is 1:0.3:0.2:1; After adding the material that is prepared in every layer, extract dividing plate out, the employing machine is pressed 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.

Used bond is a liquid paraffin in above-mentioned A～D step; Wherein the weight of used liquid paraffin is 3% of heavy working lining weight in the A step; The weight of used liquid paraffin is 6% of light heat insulation layer weight in the B step; The weight of used liquid paraffin is 3% of the first transition zone weight in the C step, and the weight of used liquid paraffin is 2% of the second transition zone weight in the D step.

Embodiment 3:

Wherein:

Feed particles grating and quality percentage composition thereof that heavy working lining 1 adopts are: particle diameter is the dolomite sand of 1～3mm: 40%; Particle diameter is less than 1mm and greater than 325 purpose dolomite sands: 35%; Particle diameter is 325 purpose dolomite sands: 12.8%; Particle diameter is 325 purpose fused magnesites: 12.2%.

Feed particles grating and quality percentage composition thereof that first transition zone 2 adopts are: particle diameter is greater than the fused magnesite of 1mm: 45%; Particle diameter is not more than 1mm and greater than 325 purpose fused magnesites: 25%; Particle diameter is 325 purpose electric-melting magnesium powder: 30%.

Feed particles grating and quality percentage composition thereof that second transition zone 3 adopts are: particle diameter is the sintering spinelle hollow ball of 0.2～5mm: 55%; Particle diameter is 325 purpose sintering spinel powders: 45%.

Feed particles grating and quality percentage composition thereof that light heat insulation layer 4 adopts are: particle diameter is greater than 325 purpose aluminium calcium hollow balls: 20%; Particle diameter is greater than 325 purpose pink fused alumina hollow balls: 20%; Particle diameter is greater than 325 purpose fused alumina zirconia hollow balls: 15%; Particle diameter is 325 purpose schmigels: 45%.

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 calcium hollow ball, pink fused alumina hollow ball, fused alumina zirconia hollow ball are mixed with bond in proportion, add schmigel then in proportion, stir 20 minutes subsequent use;

C: first 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: second 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;

E: moulding: accomplish after the getting the raw materials ready of each layer; Be divided into four layers to the material chamber of mould according to design size with dividing plate; Wherein the height dimension ratio of heavy working lining, first transition zone, second transition zone and light heat insulation layer is 1:0.5:0.3:1; After adding the material that is prepared in every layer, extract dividing plate out, the employing machine is pressed 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.

Used bond is a liquid paraffin in above-mentioned A～D step; Wherein the weight of used liquid paraffin is 4% of heavy working lining weight in the A step; The weight of used liquid paraffin is 5% of light heat insulation layer weight in the B step; The weight of used liquid paraffin is 3% of the first transition zone weight in the C step, and the weight of used liquid paraffin is 5% of the second transition zone weight in the D step.

Embodiment 4:

Wherein:

Feed particles grating and quality percentage composition thereof that heavy working lining 1 adopts are: particle diameter is the dolomite sand of 1～3mm: 45%; Particle diameter is less than 1mm and greater than 325 purpose dolomite sands: 25%; Particle diameter is 325 purpose dolomite sands: 30%.

Feed particles grating and quality percentage composition thereof that second transition zone 3 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%.

Feed particles grating and quality percentage composition thereof that light heat insulation layer 4 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%.

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;

E: moulding: accomplish after the getting the raw materials ready of each layer; Be divided into four layers to the material chamber of mould according to design size with dividing plate; Wherein the height dimension ratio of heavy working lining, first transition zone, second transition zone and light heat insulation layer is 1:0.5:0.2:1; 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 110 ℃ of oven dry, and loading of kiln was burnt till in 1650 ℃ of insulations in 4 hours.

Embodiment 5:

Wherein:

Feed particles grating and quality percentage composition thereof that heavy working lining 1 adopts are: particle diameter is the dolomite sand of 1～3mm: 40%; Particle diameter is less than 1mm and greater than 325 purpose dolomite sands: 25.5%; Particle diameter is less than 1mm and greater than 325 purpose fused magnesites: 9.5%; Particle diameter is 325 purpose dolomite sands: 25%.

Feed particles grating and quality percentage composition thereof that second transition zone 3 adopts are: particle diameter is the electric-melting magnesium Zirconium spinel matter hollow ball of 0.2～5mm: 60%; Particle diameter is 325 purpose sintering spinel powders: 40%.

Feed particles grating and quality percentage composition thereof that light heat insulation layer 4 adopts are: particle diameter is greater than 325 purpose magnalium hollow balls: 15%; Particle diameter is greater than 325 purpose magnalium calcium hollow balls: 10%; Particle diameter is greater than 325 purpose magnesium calcium hollow balls: 20%; Particle diameter is greater than 325 purpose magnesium chromium hollow balls: 15%; Particle diameter is 325 purpose magnesia powders: 40%.

B: light heat insulation layer is got the raw materials ready: magnalium hollow ball, magnalium calcium hollow ball, magnesium calcium hollow ball, magnesium chromium hollow ball are mixed with bond in proportion, add magnesia powder then in proportion, stir 20 minutes subsequent use;

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 1650 ℃ of insulations in 5 hours.

Used bond is a liquid paraffin in above-mentioned A～D step; Wherein the weight of used liquid paraffin is 3% of heavy working lining weight in the A step; The weight of used liquid paraffin is 5% of light heat insulation layer weight in the B step; The weight of used liquid paraffin is 3% of the first transition zone weight in the C step, and the weight of used liquid paraffin is 5% of the second transition zone weight in the D step.

Embodiment 6:

Wherein:

Feed particles grating and quality percentage composition thereof that heavy working lining 1 adopts are: particle diameter is the conite sand of 1～3mm: 20%; Particle diameter is the magnesite clinker of 1～3mm: 15%; Particle diameter is less than 1mm and greater than 325 purpose conite sand: 20%; Particle diameter is less than 1mm and greater than 325 purpose magnesite clinkers: 15%; Particle diameter is 325 purpose conite sand: 16.5%; Particle diameter is 325 purpose magnesite clinkers: 13.5%.

Feed particles grating and quality percentage composition that first transition zone 2 adopts are: particle diameter is the magnesite clinker of 1～3mm; 45%; Particle diameter is not more than 1mm and greater than 325 purpose magnesite clinkers: 25%; Particle diameter is 325 purpose sintering magnesium powder: 30%.

Feed particles grating and quality percentage composition thereof that second transition zone 3 adopts are following: particle diameter is the sintering spinelle of 1～3mm: 45%; Particle diameter is not more than 1mm and greater than 325 purpose sintering spinelles: 25%; Particle diameter is 325 purpose sintering spinel powders: 30%.

E: moulding: accomplish after the getting the raw materials ready of each layer; Be divided into four layers to the material chamber of mould according to design size with dividing plate; Wherein the height dimension ratio of heavy working lining, first transition zone, second transition zone and light heat insulation layer is 1:0.2:0.3:1; After adding the material that is prepared in every layer, extract dividing plate out, adopt the vibrations extrusion forming;

Embodiment 7:

Wherein:

Feed particles grating and quality percentage composition thereof that heavy working lining 1 adopts are: particle diameter is the dolomite sand of 1～3mm: 20%; Particle diameter is the fused magnesite of 1～3mm: 25%; Particle diameter is less than 1mm and greater than 325 purpose dolomite sands: 20%; Particle diameter is 325 purpose dolomite sands: 20%; Particle diameter is 325 purpose fused magnesites: 15%.

Feed particles grating and quality percentage composition thereof that first transition zone 2 adopts are: particle diameter is the magnesite clinker of 1～3mm: 45%; Particle diameter is not more than 1mm and greater than 325 purpose magnesite clinkers: 25%; Particle diameter is 325 purpose sintering magnesium powder: 30%.

Feed particles grating and quality percentage composition thereof that second transition zone 3 adopts are: particle diameter is the electric melting magnesium-aluminium chromium hollow ball of 0.2～5mm: 70%; Particle diameter is 325 purpose electric smelting spinel powders: 30%.

Embodiment 8:

Wherein:

Feed particles grating and quality percentage composition thereof that heavy working lining 1 adopts are: particle diameter is the dolomite sand of 1～3mm: 10%; Particle diameter is the fused magnesite of 1～3mm: 30%; Particle diameter is less than 1mm and greater than 325 purpose dolomite sands: 10%; Particle diameter is less than 1mm and greater than 325 purpose fused magnesites: 25%; Particle diameter is 325 purpose dolomite dusts: 6%; Particle diameter is 325 purpose fused magnesites: 19%.

Feed particles grating and quality percentage composition thereof that first transition zone 2 adopts are: particle diameter is the fused magnesite of 1～3mm: 45%; Particle diameter is not more than 1mm and greater than 325 purpose fused magnesites: 25%; Particle diameter is 325 purpose electric-melting magnesium powder: 30%.

E: moulding: accomplish after the getting the raw materials ready of each layer; Be divided into four layers to the material chamber of mould according to design size with dividing plate; Wherein the height dimension ratio of heavy working lining, first transition zone, second transition zone and light heat insulation layer is 1:0.5:0.2:1; After adding the material that is prepared in every layer, extract dividing plate out, the employing machine is pressed extrusion forming;

Embodiment 9:

Wherein:

Feed particles grating and quality percentage composition thereof that heavy working lining 1 adopts are: particle diameter is 1～3mm dolomite sand: 10%; Particle diameter is the fused magnesite of 1～3mm: 30%; Particle diameter is less than 1mm and greater than 325 purpose dolomite sands: 10%; Particle diameter is less than 1mm and greater than 325 purpose fused magnesites: 25%; Particle diameter is 325 purpose dolomite dusts: 6%; Particle diameter is 325 purpose fused magnesites: 19%.

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 1650 ℃ of insulations in 6 hours.

Embodiment 10:

Wherein:

Feed particles grating and quality percentage composition thereof that heavy working lining 1 adopts are: particle diameter is 1～3mm dolomite sand: 20%; Particle diameter is the fused magnesite of 1～3mm: 25%; Particle diameter is less than 1mm and greater than 325 purpose dolomite sands: 20%; Particle diameter is 325 purpose dolomite dusts: 20%; Particle diameter is 325 purpose fused magnesites: 15%.

Embodiment 11:

Wherein:

Feed particles grating and quality percentage composition thereof that heavy working lining 1 adopts are: particle diameter is the dolomite sand of 1～3mm: 38%; Particle diameter is less than 1mm and greater than 325 purpose conite sand: 32%; Particle diameter is 325 purpose zirconia powders: 1.6%; Particle diameter is 325 purpose magnesite clinkers: 3.4%; Particle diameter is 325 purpose dolomite sands: 25 %.

Embodiment 12:

Wherein:

Feed particles grating and quality percentage composition thereof that heavy working lining 1 adopts are: particle diameter is the calcium sand of 1～3mm: 40%; Particle diameter is less than 1mm and greater than 325 purpose calcium sand: 17.2%; Particle diameter is less than 1mm and greater than 325 purpose magnesite clinkers: 3.8%; Particle diameter is less than 1mm and greater than 325 purpose calcium zirconates: 13%; Particle diameter is 325 purpose magnesite clinkers: 21%; Particle diameter is 325 purpose dolomite dusts: 5%.

Embodiment 13:

Wherein:

Feed particles grating and quality percentage composition thereof that heavy working lining 1 adopts are: particle diameter is the dolomite sand of 1～3mm: 38%; Particle diameter is less than 1mm and greater than 325 purpose dolomite sands: 31%; Particle diameter is 325 purpose zirconia powders: 1.6%; Particle diameter is 325 purpose magnesite clinkers: 3.4%; Particle diameter is 325 purpose dolomite sands: 26%.

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 5 hours.

Embodiment 14:

Wherein:

Feed particles grating and quality percentage composition thereof that heavy working lining 1 adopts are: particle diameter is the conite sand of 1～3mm: 21.7%; Particle diameter is the magnesite clinker of 1～3mm: 13%; Particle diameter is less than 1mm and greater than 325 purpose magnesite clinkers: 18%; Particle diameter is less than 1mm and greater than 325 purpose calcia-stabilised zirconias: 15.8%; Particle diameter is 325 purpose magnesite clinkers: 31.5%.

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 15:

Wherein:

Feed particles grating and quality percentage composition thereof that heavy working lining 1 adopts are: particle diameter is the calcium sand of 1～3mm: 40%; Particle diameter is less than 1mm and greater than 325 purpose calcium sand: 17.2%; Particle diameter is less than 1mm and greater than 325 purpose magnesite clinkers: 4.8%; Particle diameter is less than 1mm and greater than 325 purpose calcium zirconates: 13%; Particle diameter is 325 purpose magnesite clinkers: 20%; Particle diameter is 325 purpose dolomite dusts: 5%.

Embodiment 16:

Wherein:

Feed particles grating and quality percentage composition thereof that heavy working lining 1 adopts are: particle diameter is the forsterite of 1～3mm: 45%; Particle diameter is less than 1mm and greater than 325 purpose forsterites: 25%; Particle diameter is 325 purpose forsterites: 5%; Particle diameter is 325 purpose sintering magnesium powder: 4%; Particle diameter is 325 purpose silicas: 21%.The bond that is adopted when getting the raw materials ready is industrial lignosulfonic acid salting liquid, and its weight is 4% of heavy working lining weight.

Feed particles grating and quality percentage composition that first transition zone 2 adopts are: particle diameter is the magnesite clinker of 1～3mm; 45%; Particle diameter is not more than 1mm and greater than 325 purpose magnesite clinkers: 25%; Particle diameter is 325 purpose sintering magnesium powder: 30%.The bond that is adopted when getting the raw materials ready is industrial lignosulfonic acid salting liquid, and its weight is 3% of the first transition zone weight.

Feed particles grating and quality percentage composition thereof that second transition zone 3 adopts are following: particle diameter is the sintering spinelle of 1～3mm: 45%; Particle diameter is not more than 1mm and greater than 325 purpose sintering spinelles: 25%; Particle diameter is 325 purpose sintering spinel powders: 30%.The bond that is adopted when getting the raw materials ready is an Adlerika, and its weight is 3% of the second transition zone weight.

Feed particles grating and quality percentage composition thereof that light heat insulation layer 4 adopts are: particle diameter is greater than 325 purpose corundum bollow balls: 55%, particle diameter is 325 purpose spinelle micro mists: 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.

Embodiment 17:

Wherein:

Feed particles grating and quality percentage composition thereof that heavy working lining 1 adopts are: particle diameter is the forsterite of 1～3mm: 35%; Particle diameter is less than 1mm and greater than 325 purpose silicas: 31.8%; Particle diameter is less than 1mm and greater than 325 purpose fused magnesites: 3.2%; Particle diameter is 325 purpose electric-melting magnesium powder: 30%.The bond that is adopted when getting the raw materials ready is a methocel solution, and its weight is 4% of heavy working lining weight.

Feed particles grating and quality percentage composition thereof that first transition zone 2 adopts are: particle diameter is the magnesite clinker of 1～3mm: 45%; Particle diameter is not more than 1mm and greater than 325 purpose magnesite clinkers: 25%; Particle diameter is 325 purpose sintering magnesium powder: 30%.The bond that is adopted when getting the raw materials ready is a yellow starch gum solution, and its weight is 4% of the first transition zone weight.

Feed particles grating and quality percentage composition thereof that second transition zone 3 adopts are: particle diameter is the electric melting magnesium-aluminium chromium hollow ball of 0.2～5mm: 70%; 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 the second transition zone weight.

Feed particles grating and quality percentage composition thereof that light heat insulation layer 4 adopts are: particle diameter is greater than 325 purpose alumina hollow balls: 35%; Particle diameter is greater than 325 purpose aluminium titanium hollow balls: 20%; 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 6% of light heat insulation layer weight.

Embodiment 18:

Wherein:

Feed particles grating and quality percentage composition thereof that heavy working lining 1 adopts are: particle diameter is the forsterite of 1～3mm: 40%; Particle diameter is less than 1mm and greater than 325 purpose forsterites: 35%; Particle diameter is 325 purpose forsterites: 19%; Particle diameter is 325 purpose electric-melting magnesium powder: 6%.The bond that is adopted when getting the raw materials ready is industrial lignosulfonic acid salting liquid, and its weight is 3% of heavy working lining weight.

Feed particles grating and quality percentage composition thereof that first transition zone 2 adopts are: particle diameter is the fused magnesite of 1～3mm: 45%; Particle diameter is not more than 1mm and greater than 325 purpose fused magnesites: 25%; Particle diameter is 325 purpose electric-melting magnesium powder: 30%.The bond that is adopted when getting the raw materials ready is a yellow starch gum solution, and its weight is 3% of the first transition zone weight.

Feed particles grating and quality percentage composition thereof that second transition zone 3 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 the second transition zone weight.

Feed particles grating and quality percentage composition thereof that light heat insulation layer 4 adopts are: particle diameter is greater than 325 purpose aluminium calcium hollow balls: 20%; Particle diameter is greater than 325 purpose pink fused alumina hollow balls: 20%; Particle diameter is greater than 325 purpose fused alumina zirconia hollow balls: 15%; 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.

Embodiment 19:

Wherein:

Feed particles grating and quality percentage composition thereof that heavy working lining 1 adopts are: particle diameter is the forsterite of 1～3mm: 40%; Particle diameter is less than 1mm and greater than 325 purpose forsterites: 21%; Particle diameter is less than 1mm and greater than 325 purpose silicas: 4%; Particle diameter is 325 purpose forsterites: 35%; The bond that is adopted when getting the raw materials ready is a spent pulping liquor, and its weight is 5% of heavy working lining weight.

Feed particles grating and quality percentage composition thereof that second transition zone 3 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 the second transition zone weight.

Feed particles grating and quality percentage composition thereof that light heat insulation layer 4 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 an aluminium glue, and its weight is 5% of light heat insulation layer weight.

Embodiment 20:

Wherein:

Feed particles grating and quality percentage composition thereof that heavy working lining 1 adopts are: particle diameter is the forsterite of 1～3mm: 35%; Particle diameter is less than 1mm and greater than 325 purpose silicas: 31.8%; Particle diameter is less than 1mm and greater than 325 purpose fused magnesites: 3.2%; Particle diameter is 325 purpose electric-melting magnesium powder: 30%; The bond that is adopted when getting the raw materials ready is a methocel solution, and its weight is 4% of heavy working lining weight.

Feed particles grating and quality percentage composition thereof that second transition zone 3 adopts are: particle diameter is the electric-melting magnesium Zirconium spinel matter 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 the second transition zone weight.

Feed particles grating and quality percentage composition thereof that light heat insulation layer 4 adopts are: particle diameter is greater than 325 purpose magnalium hollow balls: 15%; Particle diameter is greater than 325 purpose magnalium calcium hollow balls: 10%; Particle diameter is greater than 325 purpose magnesium calcium hollow balls: 20%; Particle diameter is greater than 325 purpose magnesium chromium hollow balls: 15%; Particle diameter is 325 purpose magnesia powders: 40%.The bond that is adopted when getting the raw materials ready is an aluminum sulfate solution, and its weight is 5% of light heat insulation layer weight.

Embodiment 21:

As shown in Figure 1, four layers of composite brick of the white olivine of present embodiment have stacked gradually heavy working lining 1, first transition zone 2, second transition zone 3, light heat insulation layer 4 from the bottom to top.

Wherein:

Feed particles grating and quality percentage composition thereof that first transition zone 2 adopts are: particle diameter is the magnesia hollow ball of 0.2～5mm: 60%; Particle diameter is 325 purpose sintering magnesium powder: 40%.The bond that is adopted when getting the raw materials ready is a yellow starch gum solution, and its weight is 4% of the first transition zone weight.

The preparation method of four layers of composite brick of above-mentioned white olivine may further comprise the steps:

Claims

1. plant four layers of composite brick; It is characterized in that comprising with the refractory material is the heavy working lining of feedstock production; With the magnesian is first transition zone of feedstock production; With spinelle or magnalium chromium or magnalium titanium or magnesia spinel zirconium material is second transition zone of feedstock production, is the light heat insulation layer of feedstock production with the electric smelting hollow ball.

2. according to the described four layers of composite brick of claim 1, it is characterized in that said refractory material is that dolomite matter, magnesium are calcareous, the magnesium zirconium is calcareous or the forsterite material in a kind of.

3. according to the described four layers of composite brick of claim 1, it 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 2 or 3 described four layers of composite brick, it is characterized in that said first transition zone and second transition zone are raw materials used to form, or form by hollow ball and fine powder by particle and fine powder.

5. according to the preparation method of the described four layers of composite brick of claim 1, it is characterized in that comprising the steps:

6. according to the preparation method of the described four layers of composite brick of claim 5; It is characterized in that said bond is one or more in liquid paraffin, industrial lignosulfonic acid salting liquid, Adlerika, phosphoric acid solution, methocel solution, yellow starch gum solution, phosphate dihydrogen aluminum solution, aluminum phosphate solution, spent pulping liquor, aluminium glue, the aluminum sulfate solution, and different step can adopt identical or different bond.