CN103755361A - Aluminum-chromium-silicon fireproof material - Google Patents
Aluminum-chromium-silicon fireproof material Download PDFInfo
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- CN103755361A CN103755361A CN201310705438.5A CN201310705438A CN103755361A CN 103755361 A CN103755361 A CN 103755361A CN 201310705438 A CN201310705438 A CN 201310705438A CN 103755361 A CN103755361 A CN 103755361A
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Abstract
The invention belongs to the technical field of fireproof materials, and in particular relates to an aluminum-chromium-silicon fireproof material. A preparation method comprises the steps of adding electrically-melted white corundum powder, alpha-Al2O3 powder, industrial chromium oxide green and clay fine powder or chromic oxide fine powder or SiO2 fine powder or quartz fine powder or melted quartz powder which are taken as substrates into electrically-melted white corundum particles and andalusite particles which are taken as aggregates; bonding all the materials by using an inorganic bonding agent or an organic bonding agent; firing at high temperature. The fireproof material is applied to an industrial waste liquid treatment furnace and used for treating waste acid, waste alkali and other industrial waste liquid particulates. The fireproof material provided by the invention has the characteristics of high fireproof degree, excellent thermal shock resistance, good waste acid and waste alkali corrosion resistance and the like.
Description
Technical field
The invention belongs to technical field of refractory materials, be specifically related to a kind of sichromal fire resistant materials.
Background technology
Sichromal fire resistant materials refers generally to Al in refractory materials
2o
3account for main component (>=75%), surplus is Cr
2o
3and SiO
2, have that refractoriness is high, thermal shock resistance is excellent and the feature such as antiacid liquid erosion performance is good.Such refractory materials is processed stove for industrial effluent, for the treatment of spent acid, salkali waste and other particulate industrial effluent, meets national environmental protection policy.
The Al of sichromal fire resistant materials
2o
3main various granularity fused white corundum raw materials and the α-Al obtaining through electric smelting, broken machining from commercial alumina
2o
3powder, wide material sources.And Cr
2o
3originate narrow, be derived from industrial oxidation chromium green, or by the green fine powder of making through sintering or electric smelting of industrial oxidation chromium, SiO
2from andaluzite particle, clay fine powder, quartzy fine powder, fused quartz powder or SiO
2micro mist.
Summary of the invention
The object of the invention is to propose a kind of sichromal fire resistant materials, effectively utilized the goods excellent thermal shock resistance that the low thermal expansion of mullite synthesizing brings in process of production, in conjunction with the good erosion-resisting characteristics of chromic oxide, can effectively extend the work-ing life of industrial effluent processing stove.
To achieve these goals, the technical solution used in the present invention is as follows:
A kind of sichromal fire resistant materials, the feed composition of described sichromal fire resistant materials and mass percent are: granularity is the fused white corundum particle 40～60% of 0.1～3 mm, fused white corundum particle is by being less than or equal to 3 mm, being greater than 2 mm, be less than or equal to 2 mm, be greater than 1 mm, be less than or equal to 1mm, be greater than after 0.1 mm sieving and grading, and account for respectively 10～25%, 10～25%, 5～20% of sichromal fire resistant materials weight; Granularity is the andaluzite particle 5～25% of 0.1～1 mm; The fused white corundum fine powder 5～20% of granularity < 0.088 mm; α-Al of granularity < 0.044 mm
2o
3powder 5～20%; The chromic oxide fine powder 0～10% of granularity < 0.088 mm; The industrial oxidation chromium green 2～12% of granularity < 0.044 mm; The clay 2～15% of granularity < 0.044 mm; The SiO of granularity < 0.044 mm
2micro mist 0～10%; The quartzy fine powder 0～10% of granularity < 0.044 mm; The fused quartz powder 0～10% of granularity < 0.044 mm; Add in addition bonding agent, bonding agent is 1～5% of above-mentioned raw materials gross weight; Al in described sichromal fire resistant materials
2o
3content is 75～85%, Cr
2o
3content is 4～10%, SiO
2content is 8～15%.
A kind of sichromal fire resistant materials, introduces Al
2o
3raw material be mainly fused white corundum, be secondly α-Al
2o
3powder is andaluzite particle and clay again; Al in fused white corundum particle and fine powder
2o
3>=98%, α-Al
2o
3the Al of powder
2o
3>=99%, granularity < 0.044 mm.
A kind of sichromal fire resistant materials, the Cr of chromic oxide fine powder
2o
3>=95%, granularity < 0.088 mm.
A kind of sichromal fire resistant materials, the Cr that industrial oxidation chromium is green
2o
3>=99%, granularity < 0.044 mm.
A kind of sichromal fire resistant materials, introduces SiO
2raw material be mainly andaluzite particle, be secondly clay fine powder, SiO
2micro mist or quartzy fine powder or fused quartz powder; The Al of andaluzite particle
2o
3>=58%, granularity 1～0.1 mm; Granularity < 0.044 mm of clay fine powder, deduction igloss after clay fine powder Al
2o
335～48%, Al
2o
3+ SiO
2>=96%; SiO
2the SiO of micro mist
2>=90%, granularity < 0.044 mm; The SiO of quartz fine powder
2>=98%, granularity < 0.044 mm; The SiO of fused quartz fine powder
2>=98%, granularity < 0.044 mm.
A kind of sichromal fire resistant materials, is characterized in that: the fused white corundum fine powder, the α-Al that introduce granularity < 0.088 mm
2o
3powder, chromic oxide fine powder, industrial oxidation chromium are green, clay fine powder or SiO
2micro mist or quartzy fine powder or fused quartz powder carry out the pre-mixing of 30～60 minutes in the preparation.
A kind of sichromal fire resistant materials, feed composition and mass percent be preferably:
Granularity is the fused white corundum particle 40～55% of 0.1～3 mm, fused white corundum particle is by being less than or equal to 3 mm, being greater than 2 mm, be less than or equal to 2 mm, be greater than 1 mm, be less than or equal to 1mm, be greater than 0.1 mm sieving and grading, and accounting for respectively 15～20%, 20～25%, 5～15% of sichromal fire resistant materials weight, granularity is the andaluzite particle 10～25% of 0.1～1 mm;
The fused white corundum fine powder 5～15% of < 0.088 mm;
α-Al of < 0.044 mm
2o
3powder 5～15%;
The chromic oxide fine powder 0～5% of < 0.088 mm;
The industrial oxidation chromium green 2～10% of < 0.044 mm;
The clay fine powder 4～15% of < 0.044 mm;
The SiO of < 0.044 mm
2micro mist 0～5%;
The quartzy fine powder 0～5% of < 0.044 mm;
The fused quartz powder 0～5% of < 0.044 mm;
Add in addition bonding agent, the add-on of bonding agent is 1～5% of sichromal fire resistant materials raw material gross weight.
A kind of sichromal fire resistant materials, described bonding agent is inorganic bonding agent or organic bond.
A kind of sichromal fire resistant materials, described inorganic bonding agent can be the one in phosphoric acid salt, aluminium dihydrogen phosphate, phosphoric acid, or the combination solution of wherein two kinds, three kinds; Described organic bond can be the one in dextrin, glucose, calcium lignin sulphonate, or the combination solution of wherein two kinds, three kinds.
A preparation method for sichromal fire resistant materials, by fused white corundum fine powder, α-Al
2o
3powder, industrial oxidation chromium are green, clay fine powder or chromic oxide fine powder or SiO
2micro mist or quartzy fine powder or fused quartz powder are placed on mixing equipment to be mixed, and even mixed material is called powder mix, as matrix; In fused white corundum particle and andaluzite particle, add inorganic bonding agent or organic bond, stir wetting after; Add again powder mix, mix; Employing machine pressure mode is prepared the molded article of various desired sizes, after 100～110 ℃ are dried 24～36 hours, in 1550～1700 ℃ of insulations, within 6～10 hours, burns till.The apparent porosity of the sichromal fire resistant materials obtaining is lower than 16%, and volume density is greater than 3.0 g/cm
3, cold crushing strength is greater than 80 MPa, and refractoriness under load is greater than 1700 ℃, and especially heat-shock resistance [1100 ℃ × water-cooled], at least more than 40 times, has excellent thermal shock resistance.
The present invention has following evident characteristic and advantage:
(1) utilize andaluzite particle high-temperature to decompose the mullite forming and separate out silicon oxide and the mullite of aluminum oxide synthesized, clay decompose form once and secondary mullite, quartz, SiO
2micro mist, the mullite of fused quartz synthesized, it is low that above-mentioned mullite has thermal expansivity, thereby effectively improved goods thermal shock resistance, adapted to industrial furnace temperature fluctuation and technological operation needs;
(2) Cr introducing
2o
3the mullite that is distributed in goods mutually in or be present in glassy phase, effectively improve goods erosion-resisting characteristics in use, extended the work-ing life of industrial furnace;
(3) sichromal fire resistant materials of the present invention, takes full advantage of the erosion-resisting characteristics of chromic oxide excellence and the good thermal shock resistance that mullite low-expansion coefficient brings, and it is effectively unified in.
Therefore,, compared with conventional aluminum chrome refractory, the apparent porosity of the sichromal fire resistant materials that the present invention obtains, lower than 16%, lower than the apparent porosity 16～19% of conventional aluminum chrome refractory, thereby has good erosion-resisting characteristics; Its heat-shock resistance [1100 ℃ × water-cooled] at least, more than 40 times, is significantly higher than 20 left and right of conventional aluminum chrome refractory, has excellent thermal shock resistance.Compared with traditional Corundum Mullite Refractory, the chromic oxide of the sichromal fire resistant materials content some amount that the present invention obtains, there is good resistance to fouling, 1700 ℃ of its refractoriness under load > simultaneously, also higher than the refractoriness under load of traditional corundum-mullite, there is the feature that use temperature is high.
Embodiment
The present invention is according to the accumulation of discontinuous sized particles and distribution and the accumulation of sized particles are carried out optimum matching to particle, abundant erosion-resisting characteristics and the good thermal shock resistance of mullite in conjunction with chromic oxide excellence continuously.Add α-Al
2o
3powder, industrial oxidation chromium green or chromic oxide fine powder, clay fine powder or SiO
2micro mist or quartzy fine powder or fused quartz powder, fused white corundum fine powder and particle and andaluzite particle, inorganic or organic bond, produces fine aluminum chrome-silicon fire resistant materials.In the following embodiments, the Al of fused white corundum
2o
3>=98%, granularity < 0.088 mm of fused white corundum fine powder; Granularity 1～0.1 mm of andaluzite particle, Al
2o
3>=58%; α-Al
2o
3granularity < 0.044 mm of powder, Al
2o
3>=99%; Granularity < 0.044 mm that industrial oxidation chromium is green, Cr
2o
3>=99%; Granularity < 0.088 mm of chromic oxide fine powder, Cr
2o
3>=95%; Granularity < 0.044 mm of clay fine powder, the Al after deduction igloss
2o
335～48%, Al
2o
3+ SiO
2>=96%; SiO
2granularity < 0.044 mm of micro mist, SiO
2>=90%; Granularity < 0.044 mm of quartz fine powder, SiO
2>=98%; Granularity < 0.044 mm of fused quartz powder, SiO
2>=98%.
Embodiment 1: a kind of sichromal fire resistant materials, the feed composition of sichromal fire resistant materials and mass percent are: granularity is the fused white corundum particle 40% of 0.1～3 mm, granularity is the andaluzite 25% of 0.1～1 mm, the fused white corundum fine powder 15% of granularity < 0.088 mm, α-Al
2o
3powder 5%, industrial oxidation chromium is green 10%, the clay fine powder 5% of granularity < 0.044 mm; Bonding agent phosphate dihydrogen aluminum solution add-on is above-mentioned raw materials weight 3.0%.Wherein, described fused white corundum particle, by being less than or equal to 3 mm, being greater than 2 mm, is less than or equal to 2 mm, is greater than 1 mm, is less than or equal to 1mm, is greater than 0.1 mm and carries out grating, and account for respectively 15%, 20%, 5% of sichromal fire resistant materials weight.
First by white fused alumina fine powder, α-Al
2o
3green and the clay fine powder of powder, industrial oxidation chromium mixes at mixing equipment, and even mixed powder mix is as matrix; In fused white corundum particle and andaluzite particle, add phosphate dihydrogen aluminum solution, stir wetting after; Add again powder mix, mix; Employing machine pressure mode is prepared the molded article of various desired sizes, at 100～110 ℃, is dried 24～36 hours, finally at 1650 ℃ of insulation 10h, burns till.
The volume density of the sichromal fire resistant materials that the present embodiment obtains is 3.1～3.2g/cm
3, apparent porosity is 14～15%, cold crushing strength is 80～100 MPa, and 1700 ℃ of refractoriness under load >, heat-shock resistance [1100 ℃ × water-cooled] is 42 times; Chemical composition, Al
2o
3: 76.7%; Cr
2o
3: 9.9%; SiO
2: 11.6%.
Embodiment 2: a kind of sichromal fire resistant materials, the feed composition of sichromal fire resistant materials and mass percent are: granularity is the fused white corundum particle 50% of 0.1～3 mm, granularity is the andaluzite 15% of 0.1～1 mm, the fused white corundum fine powder 5% of granularity < 0.088 mm, α-Al
2o
3powder 15%, the chromic oxide fine powder 5% of granularity < 0.088 mm, industrial oxidation chromium is green 2%, the clay fine powder 8% of granularity < 0.044 mm; Bonding agent aluminum phosphate solution add-on is above-mentioned raw materials weight 3.0%.Wherein, described fused white corundum particle, by being less than or equal to 3 mm, being greater than 2 mm, is less than or equal to 2 mm, is greater than 1 mm, is less than or equal to 1mm, is greater than 0.1 mm and carries out grating, and account for respectively 20%, 20%, 10% of sichromal fire resistant materials weight.
First by white fused alumina fine powder, α-Al
2o
3green and the clay fine powder of powder, chromic oxide fine powder, industrial oxidation chromium mixes at mixing equipment, and even mixed powder mix is as matrix; In fused white corundum particle and andaluzite particle, add aluminum phosphate solution, stir wetting after; Add again powder mix, mix; Employing machine pressure mode is prepared the molded article of various desired sizes, at 100～110 ℃, is dried 24～36 hours, finally at 1600 ℃ of insulation 10h, burns till.
The volume density of the sichromal fire resistant materials that the present embodiment obtains is 3.1～3.2g/cm
3, apparent porosity is 14～15%, cold crushing strength is 120～150 MPa, and 1700 ℃ of refractoriness under load >, heat-shock resistance [1100 ℃ × water-cooled] is 40 times; Chemical composition, Al
2o
3: 81.5%; Cr
2o
3: 6.8%; SiO
2: 9.3%.
Embodiment 3: a kind of sichromal fire resistant materials, the feed composition of sichromal fire resistant materials and mass percent are: granularity is the fused white corundum particle 55% of 0.1～3 mm, granularity is the andaluzite 10% of 0.1～1 mm, the fused white corundum fine powder 8% of granularity < 0.088 mm, α-Al
2o
3powder 5%, the chromic oxide fine powder 5% of granularity < 0.088 mm, industrial oxidation chromium is green 2%, the clay fine powder 15% of granularity < 0.044 mm; Bonding agent phosphoric acid solution add-on is above-mentioned raw materials weight 5.0%.Wherein, described fused white corundum particle, by being less than or equal to 3 mm, being greater than 2 mm, is less than or equal to 2 mm, is greater than 1 mm, is less than or equal to 1mm, is greater than 0.1 mm and carries out grating, and account for respectively 20%, 20%, 15% of sichromal fire resistant materials weight.
First by white fused alumina fine powder, α-Al
2o
3green and the clay fine powder of powder, chromic oxide fine powder, industrial oxidation chromium mixes at mixing equipment, and even mixed powder mix is as matrix; In fused white corundum particle and andaluzite particle, add phosphoric acid solution, stir wetting after; Add again powder mix, mix; Employing machine pressure mode is prepared the molded article of various desired sizes, at 100～110 ℃, is dried 24～36 hours, finally at 1550 ℃ of insulation 10h, burns till.
The volume density of the sichromal fire resistant materials that the present embodiment obtains is 3.0～3.1g/cm
3, apparent porosity is 15～16%, cold crushing strength is 120～140 MPa, and 1700 ℃ of refractoriness under load >, heat-shock resistance [1100 ℃ × water-cooled] is 50 times; Chemical composition, Al
2o
3: 78.8%; Cr
2o
3: 6.3%; SiO
2: 10.3%.
Embodiment 4: a kind of sichromal fire resistant materials, the feed composition of sichromal fire resistant materials and mass percent are: granularity is the fused white corundum particle 50% of 0.1～3 mm, granularity is the andaluzite 15% of 0.1～1 mm, the fused white corundum fine powder 11% of granularity < 0.088 mm, α-Al
2o
3powder 8%, the chromic oxide fine powder 4% of granularity < 0.088 mm, industrial oxidation chromium is green 2%, the clay fine powder 5% of granularity < 0.044 mm, the SiO of granularity < 0.044 mm
2micro mist 5%; Bonding agent dextrin solution add-on is above-mentioned raw materials weight 1.0%.Wherein, described fused white corundum particle, by being less than or equal to 3 mm, being greater than 2 mm, is less than or equal to 2 mm, is greater than 1 mm, is less than or equal to 1mm, is greater than 0.1 mm and carries out grating, and account for respectively 20%, 25%, 5% of sichromal fire resistant materials weight.
First by white fused alumina fine powder, α-Al
2o
3powder, chromic oxide fine powder, industrial oxidation chromium are green, clay fine powder and SiO
2micro mist mixes at mixing equipment, and even mixed powder mix is as matrix; In fused white corundum particle and andaluzite particle, add dextrin solution, stir wetting after; Add again powder mix, mix; Employing machine pressure mode is prepared the molded article of various desired sizes, at 100～110 ℃, is dried 24～36 hours, finally at 1600 ℃ of insulation 10h, burns till.
The volume density of the sichromal fire resistant materials that the present embodiment obtains is 3.1～3.2g/cm
3, apparent porosity is 14～15%, cold crushing strength is 130～150 MPa, and 1700 ℃ of refractoriness under load >, heat-shock resistance [1100 ℃ × water-cooled] is 46 times; Chemical composition, Al
2o
3: 79.1%; Cr
2o
3: 5.8%; SiO
2: 12.7%.
Embodiment 5: a kind of sichromal fire resistant materials, the feed composition of sichromal fire resistant materials and mass percent are: granularity is the fused white corundum particle 50% of 0.1～3 mm, granularity is the andaluzite 15% of 0.1～1 mm, the fused white corundum fine powder 11% of granularity < 0.088 mm, α-Al
2o
3powder 8%, the chromic oxide fine powder 4% of granularity < 0.088 mm, industrial oxidation chromium is green 3%, the clay fine powder 4% of granularity < 0.044 mm, the quartzy fine powder 5% of granularity < 0.044 mm; Bonding agent calcium lignosulfonate solution add-on is above-mentioned raw materials weight 3.0%.Wherein, described fused white corundum particle, by being less than or equal to 3 mm, being greater than 2 mm, is less than or equal to 2 mm, is greater than 1 mm, is less than or equal to 1mm, is greater than 0.1 mm and carries out grating, and account for respectively 20%, 25%, 5% of sichromal fire resistant materials weight.
First by white fused alumina fine powder, α-Al
2o
3powder, chromic oxide fine powder, industrial oxidation chromium are green, clay fine powder and quartzy fine powder mix at mixing equipment, and even mixed powder mix is as matrix; In fused white corundum particle and andaluzite particle, add calcium lignosulfonate solution, stir wetting after; Add again powder mix, mix; Employing machine pressure mode is prepared the molded article of various desired sizes, at 100～110 ℃, is dried 24～36 hours, finally at 1700 ℃ of insulation 10h, burns till.
The volume density of the sichromal fire resistant materials that the present embodiment obtains is 3.1～3.2g/cm
3, apparent porosity is 14～15%, cold crushing strength is 120～140 MPa, and 1700 ℃ of refractoriness under load >, heat-shock resistance [1100 ℃ × water-cooled] is 48 times; Chemical composition, Al
2o
3: 78.8%; Cr
2o
3: 6.8%; SiO
2: 12.5%.
Embodiment 6: a kind of sichromal fire resistant materials, the feed composition of sichromal fire resistant materials and mass percent are: granularity is the fused white corundum particle 50% of 0.1～3 mm, granularity is the andaluzite 15% of 0.1～1 mm, the fused white corundum fine powder 9% of granularity < 0.088 mm, α-Al
2o
3powder 10%, the chromic oxide fine powder 3% of granularity < 0.088 mm, industrial oxidation chromium is green 3%, the clay fine powder 5% of granularity < 0.044 mm, the fused quartz powder 5% of granularity < 0.044 mm; Bonding agent glucose solution add-on is above-mentioned raw materials weight 3.0%.Wherein, described fused white corundum particle, by being less than or equal to 3 mm, being greater than 2 mm, is less than or equal to 2 mm, is greater than 1 mm, is less than or equal to 1mm, is greater than 0.1 mm and carries out grating, and account for respectively 20%, 25%, 5% of sichromal fire resistant materials weight.
First by white fused alumina fine powder, α-Al
2o
3powder, chromic oxide fine powder, industrial oxidation chromium are green, clay fine powder and fused quartz powder mix at mixing equipment, and even mixed powder mix is as matrix; In fused white corundum particle and andaluzite particle, add glucose solution, stir wetting after; Add again powder mix, mix; Employing machine pressure mode is prepared the molded article of various desired sizes, at 100～110 ℃, is dried 24～36 hours, finally at 1700 ℃ of insulation 10h, burns till.
The volume density of the sichromal fire resistant materials that the present embodiment obtains is 3.1～3.2g/cm
3, apparent porosity is 14～15%, cold crushing strength is 130～150 MPa, and 1700 ℃ of refractoriness under load >, heat-shock resistance [1100 ℃ × water-cooled] is 50 times; Chemical composition, Al
2o
3: 79.5%; Cr
2o
3: 5.8%; SiO
2: 12.8%.
Claims (10)
1. a sichromal fire resistant materials, it is characterized in that: feed composition and mass percent are: granularity is the fused white corundum particle 40～60% of 0.1～3 mm, fused white corundum particle is by being less than or equal to 3 mm, being greater than 2 mm, be less than or equal to 2 mm, be greater than 1 mm, be less than or equal to 1mm, be greater than 0.1 mm sieving and grading, and account for respectively 10～25%, 10～25%, 5～20% of sichromal fire resistant materials weight; Granularity is the andaluzite particle 5～25% of 0.1～1 mm; The fused white corundum fine powder 5～20% of granularity < 0.088 mm; α-Al of granularity < 0.044 mm
2o
3powder 5～20%; The chromic oxide fine powder 0～10% of granularity < 0.088 mm; The industrial oxidation chromium green 2～12% of granularity < 0.044 mm; The clay 2～15% of granularity < 0.044 mm; The SiO of granularity < 0.044 mm
2micro mist 0～10%; The quartzy fine powder 0～10% of granularity < 0.044 mm; The fused quartz powder 0～10% of granularity < 0.044 mm; Add in addition bonding agent, bonding agent is 1～5% of above-mentioned raw materials gross weight; Al in described sichromal fire resistant materials
2o
3content is 75～85%, Cr
2o
3content is 4～10%, SiO
2content is 8～15%; The apparent porosity of the sichromal fire resistant materials obtaining is lower than 16%, and volume density is greater than 3.0 g/cm
3, cold crushing strength is greater than 80 MPa, and refractoriness under load is greater than 1700 ℃, and especially heat-shock resistance [1100 ℃ × water-cooled], at least more than 40 times, has excellent thermal shock resistance.
2. sichromal fire resistant materials as claimed in claim 1, is characterized in that: feed composition and mass percent are:
Granularity is the fused white corundum particle 40～55% of 0.1～3 mm, fused white corundum particle is by being less than or equal to 3 mm, being greater than 2 mm, be less than or equal to 2 mm, be greater than 1 mm, be less than or equal to 1mm, be greater than 0.1 mm sieving and grading, and accounting for respectively 15～20%, 20～25%, 5～15% of sichromal fire resistant materials weight, granularity is the andaluzite particle 10～25% of 0.1～1 mm;
The fused white corundum fine powder 5～15% of < 0.088 mm;
α-Al of < 0.044 mm
2o
3powder 5～15%;
The chromic oxide fine powder 0～5% of < 0.088 mm;
The industrial oxidation chromium green 2～10% of < 0.044 mm;
The clay fine powder 4～15% of < 0.044 mm;
The SiO of < 0.044 mm
2micro mist 0～5%;
The quartzy fine powder 0～5% of < 0.044 mm;
The fused quartz powder 0～5% of < 0.044 mm;
Add in addition bonding agent, the add-on of bonding agent is 1～5% of sichromal fire resistant materials raw material gross weight.
3. sichromal fire resistant materials as claimed in claim 1 or 2, is characterized in that: andaluzite grain graininess 0.1～1 mm, Al
2o
3>=58%.
4. sichromal fire resistant materials as claimed in claim 1 or 2, is characterized in that: granularity < 0.044 mm, the Al of clay fine powder after deduction igloss
2o
335～48%, Al
2o
3+ SiO
2>=96%.
5. sichromal fire resistant materials as claimed in claim 1 or 2, is characterized in that: SiO
2micro mist granularity < 0.044 mm, SiO
2>=90%; Quartz powder particle size < 0.044 mm, SiO
2>=98%; Fused quartz powder particle size < 0.044 mm, SiO
2>=98%.
6. sichromal fire resistant materials as claimed in claim 1 or 2, is characterized in that: green granularity < 0.044 mm of industrial oxidation chromium, Cr
2o
3>=99%; Chromic oxide powder particle size < 0.088 mm, Cr
2o
3>=95%.
7. sichromal fire resistant materials as claimed in claim 1 or 2, is characterized in that: introduce Al
2o
3raw material be mainly fused white corundum, be secondly α-Al
2o
3powder; Al in fused white corundum particle and fine powder
2o
3>=98%, α-Al
2o
3the Al of powder
2o
3>=99%, granularity < 0.044 mm.
8. sichromal fire resistant materials as claimed in claim 1 or 2, is characterized in that: described bonding agent is inorganic bonding agent or organic bond.
9. the sichromal fire resistant materials as described in claim 1 or 8, is characterized in that: described bonding agent is inorganic bonding agent, and described inorganic bonding agent can be the one in phosphoric acid salt, aluminium dihydrogen phosphate, phosphoric acid, or the combination of two kinds, three kinds wherein; Described organic bond can be the one in dextrin, glucose, calcium lignin sulphonate, or the combination of two kinds, three kinds wherein.
10. sichromal fire resistant materials as claimed in claim 1 or 2, is characterized in that: described sichromal fire resistant materials is: by granularity < 0.088 mm fused white corundum fine powder, α-Al
2o
3powder, industrial oxidation chromium are green, clay fine powder or chromic oxide fine powder or SiO
2micro mist or quartzy fine powder or fused quartz powder give the powder mix being mixed to get at mixing equipment, as matrix; Described inorganic bonding agent or organic bond add in fused white corundum particle and andaluzite particle, stir wetting after; Add again powder mix, mix; Employing machine pressure mode is prepared the molded article of various desired sizes, after 100～110 ℃ are dried 24～36 hours, in 1550～1700 ℃ of insulations, within 6～10 hours, burns till, and obtains.
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|---|---|---|---|
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| CN103755361B CN103755361B (en) | 2016-02-17 |
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| CN201310705438.5A Active CN103755361B (en) | 2013-12-20 | 2013-12-20 | A kind of Aluminum-chromium-sifireproof fireproof material |
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Cited By (14)
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| CN106045531A (en) * | 2016-05-31 | 2016-10-26 | 浙江汇力胶囊有限公司 | Prefabricated-grate pouring material |
| CN106365622A (en) * | 2016-08-31 | 2017-02-01 | 酒泉中横新材料科技有限责任公司 | Method for preparing energy-saving wall material by taking andalusite as raw material |
| CN106396653A (en) * | 2016-08-31 | 2017-02-15 | 徐美兰 | Energy-saving wall material using andalusite as raw materials |
| CN108675810A (en) * | 2018-07-13 | 2018-10-19 | 贵州紫云月华新材料有限公司 | A kind of production method of silica refractory |
| CN111533543A (en) * | 2020-05-22 | 2020-08-14 | 中钢南京环境工程技术研究院有限公司 | High-phosphorus aluminum chromium brick for waste melting furnace and preparation method thereof |
| CN112250457A (en) * | 2020-10-30 | 2021-01-22 | 德清县钢友耐火材料有限公司 | High-temperature refractory material for factory |
| CN112745109A (en) * | 2020-12-30 | 2021-05-04 | 巩义市新科耐火材料有限公司 | Production method of high-temperature anti-stripping chromium corundum brick |
| CN113173795A (en) * | 2021-06-09 | 2021-07-27 | 江苏君耀耐磨耐火材料有限公司 | Chromium corundum brick for sulfur recovery acid gas incinerator and preparation process thereof |
| CN113480296A (en) * | 2021-08-27 | 2021-10-08 | 郑州中本耐火科技股份有限公司 | Modified refractory brick with high thermal shock stability |
| CN113698187A (en) * | 2021-08-31 | 2021-11-26 | 郑州瑞泰耐火科技有限公司 | Stable-performance aluminum-chromium brick for zinc volatilization kiln and preparation method thereof |
| CN113735603A (en) * | 2021-10-09 | 2021-12-03 | 海城利尔麦格西塔材料有限公司 | High-performance coating material for intermediate frequency furnace |
| CN109320219B (en) * | 2018-11-13 | 2021-12-28 | 辽宁中镁高温材料有限公司 | High-performance aluminum-chromium refractory material and manufacturing method and application thereof |
| CN114656267A (en) * | 2022-03-18 | 2022-06-24 | 洛阳阿尔法新材料有限公司 | High-purity homogeneous compact chrome corundum material and preparation method thereof |
| CN116253574A (en) * | 2023-02-16 | 2023-06-13 | 中钢集团洛阳耐火材料研究院有限公司 | Preparation method of refractory material for low-aluminum ultralow-pore chlorination furnace |
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| CN101240125A (en) * | 2008-02-04 | 2008-08-13 | 洛阳科耐高温材料有限公司 | High-temperature wearable composite dope for electric power boiler flue |
| CN102603346A (en) * | 2011-01-24 | 2012-07-25 | 鞍山盈达能源科技有限公司 | Honeycomb ceramic heat accumulator with high heat conduction performance, high specific gravity and good slag resistance |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106045531A (en) * | 2016-05-31 | 2016-10-26 | 浙江汇力胶囊有限公司 | Prefabricated-grate pouring material |
| CN106365622A (en) * | 2016-08-31 | 2017-02-01 | 酒泉中横新材料科技有限责任公司 | Method for preparing energy-saving wall material by taking andalusite as raw material |
| CN106396653A (en) * | 2016-08-31 | 2017-02-15 | 徐美兰 | Energy-saving wall material using andalusite as raw materials |
| CN108675810A (en) * | 2018-07-13 | 2018-10-19 | 贵州紫云月华新材料有限公司 | A kind of production method of silica refractory |
| CN109320219B (en) * | 2018-11-13 | 2021-12-28 | 辽宁中镁高温材料有限公司 | High-performance aluminum-chromium refractory material and manufacturing method and application thereof |
| CN111533543A (en) * | 2020-05-22 | 2020-08-14 | 中钢南京环境工程技术研究院有限公司 | High-phosphorus aluminum chromium brick for waste melting furnace and preparation method thereof |
| CN112250457A (en) * | 2020-10-30 | 2021-01-22 | 德清县钢友耐火材料有限公司 | High-temperature refractory material for factory |
| CN112745109A (en) * | 2020-12-30 | 2021-05-04 | 巩义市新科耐火材料有限公司 | Production method of high-temperature anti-stripping chromium corundum brick |
| CN113173795A (en) * | 2021-06-09 | 2021-07-27 | 江苏君耀耐磨耐火材料有限公司 | Chromium corundum brick for sulfur recovery acid gas incinerator and preparation process thereof |
| CN113480296A (en) * | 2021-08-27 | 2021-10-08 | 郑州中本耐火科技股份有限公司 | Modified refractory brick with high thermal shock stability |
| CN113480296B (en) * | 2021-08-27 | 2023-03-03 | 郑州中本耐火科技股份有限公司 | Modified refractory brick with high thermal shock stability |
| CN113698187A (en) * | 2021-08-31 | 2021-11-26 | 郑州瑞泰耐火科技有限公司 | Stable-performance aluminum-chromium brick for zinc volatilization kiln and preparation method thereof |
| CN113735603A (en) * | 2021-10-09 | 2021-12-03 | 海城利尔麦格西塔材料有限公司 | High-performance coating material for intermediate frequency furnace |
| CN114656267A (en) * | 2022-03-18 | 2022-06-24 | 洛阳阿尔法新材料有限公司 | High-purity homogeneous compact chrome corundum material and preparation method thereof |
| CN116253574A (en) * | 2023-02-16 | 2023-06-13 | 中钢集团洛阳耐火材料研究院有限公司 | Preparation method of refractory material for low-aluminum ultralow-pore chlorination furnace |
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