CN103755361B - A kind of Aluminum-chromium-sifireproof fireproof material - Google Patents
A kind of Aluminum-chromium-sifireproof fireproof material Download PDFInfo
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- CN103755361B CN103755361B CN201310705438.5A CN201310705438A CN103755361B CN 103755361 B CN103755361 B CN 103755361B CN 201310705438 A CN201310705438 A CN 201310705438A CN 103755361 B CN103755361 B CN 103755361B
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Abstract
The invention belongs to technical field of refractory materials, be specifically related to a kind of Aluminum-chromium-sifireproof fireproof material, with fused white corundum particle and andaluzite particle for aggregate, add fused white corundum fine powder, α-Al
2o
3powder, industrial oxidation chrome green, clay fine powder or chromic oxide fine powder or SiO
2micro mist or quartzy fine powder or fused quartz powder do matrix, combine, form through high-temperature firing with inorganic bonding agent or organic bond.Goods of the present invention are used for industrial effluent process stove, for the treatment of spent acid, salkali waste and other particulate industrial effluent, have that refractoriness is high, thermal shock resistance is excellent, anti-spent acid and the feature such as salkali waste erosion performance is excellent.
Description
Technical field
The invention belongs to technical field of refractory materials, be specifically related to a kind of Aluminum-chromium-sifireproof fireproof material.
Background technology
Aluminum-chromium-sifireproof fireproof material 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 excellent.Such refractory materials is used for industrial effluent process stove, for the treatment of spent acid, salkali waste and other particulate industrial effluent, meets the environmental protection policy of country.
The Al of Aluminum-chromium-sifireproof fireproof material
2o
3the various granularity fused white corundum raw material mainly obtained through electric smelting, broken machining from commercial alumina and α-Al
2o
3powder, wide material sources.And Cr
2o
3originate narrow, it is green to be derived from industrial oxidation chromium, or the fine powder be made up through sintering or electric smelting of industrial oxidation chrome green, 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 Aluminum-chromium-sifireproof fireproof material, the excellent thermal shock resistance that the low thermal expansion that effectively make use of goods mullite synthesizing in process of production brings, in conjunction with the excellent erosion-resisting characteristics of chromic oxide, the work-ing life of industrial effluent process stove effectively can be extended.
To achieve these goals, the technical solution used in the present invention is as follows:
A kind of Aluminum-chromium-sifireproof fireproof material, the feed composition of described Aluminum-chromium-sifireproof fireproof material and mass percent are: granularity is the fused white corundum particle 40 ~ 60% of 0.1 ~ 3mm, fused white corundum particle is by being less than or equal to 3mm, being greater than 2mm, be less than or equal to 2mm, be greater than 1mm, be less than or equal to 1mm, be greater than 0.1mm sieving and grading, and account for 10 ~ 25%, 10 ~ 25%, 5 ~ 20% of Aluminum-chromium-sifireproof fireproof material weight respectively; Granularity is the andaluzite particle 5 ~ 25% of 0.1 ~ 1mm; The fused white corundum fine powder 5 ~ 20% of granularity < 0.088mm; α-the Al of granularity < 0.044mm
2o
3powder 5 ~ 20%; The chromic oxide fine powder 0 ~ 10% of granularity < 0.088mm; The industrial oxidation chrome green 2 ~ 12% of granularity < 0.044mm; The clay 2 ~ 15% of granularity < 0.044mm; The SiO of granularity < 0.044mm
2micro mist 0 ~ 10%; The quartzy fine powder 0 ~ 10% of granularity < 0.044mm; The fused quartz fine powder 0 ~ 10% of granularity < 0.044mm; Add bonding agent in addition, bonding agent is 1 ~ 5% of above-mentioned raw materials gross weight; Al in described Aluminum-chromium-sifireproof fireproof material
2o
3content is 75 ~ 85%, Cr
2o
3content is 4 ~ 10%, SiO
2content is 8 ~ 15%.
A kind of Aluminum-chromium-sifireproof fireproof material, 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 < 0.044mm.
A kind of Aluminum-chromium-sifireproof fireproof material, the Cr of chromic oxide fine powder
2o
3>=95%, granularity < 0.088mm.
A kind of Aluminum-chromium-sifireproof fireproof material, the Cr of industrial oxidation chrome green
2o
3>=99%, granularity < 0.044mm.
A kind of Aluminum-chromium-sifireproof fireproof material, 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 ~ 0.1mm; The granularity < 0.044mm 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 < 0.044mm; The SiO of quartz fine powder
2>=98%, granularity < 0.044mm; The SiO of fused quartz fine powder
2>=98%, granularity < 0.044mm.
A kind of Aluminum-chromium-sifireproof fireproof material, is characterized in that: the fused white corundum fine powder, the α-Al that introduce granularity < 0.088mm
2o
3powder, chromic oxide fine powder, industrial oxidation chrome 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 Aluminum-chromium-sifireproof fireproof material, feed composition and mass percent be preferably:
Granularity is the fused white corundum particle 40 ~ 55% of 0.1 ~ 3mm, fused white corundum particle is by being less than or equal to 3mm, being greater than 2mm, be less than or equal to 2mm, be greater than 1mm, be less than or equal to 1mm, be greater than 0.1mm sieving and grading, and accounting for 15 ~ 20%, 20 ~ 25%, 5 ~ 15% of Aluminum-chromium-sifireproof fireproof material weight respectively, granularity is the andaluzite particle 10 ~ 25% of 0.1 ~ 1mm;
The fused white corundum fine powder 5 ~ 15% of < 0.088mm;
α-the Al of < 0.044mm
2o
3powder 5 ~ 15%;
The chromic oxide fine powder 0 ~ 5% of < 0.088mm;
The industrial oxidation chrome green 2 ~ 10% of < 0.044mm;
The clay fine powder 4 ~ 15% of < 0.044mm;
The SiO of < 0.044mm
2micro mist 0 ~ 5%;
The quartzy fine powder 0 ~ 5% of < 0.044mm;
The fused quartz powder 0 ~ 5% of < 0.044mm;
Add bonding agent in addition, the add-on of bonding agent is 1 ~ 5% of Aluminum-chromium-sifireproof fireproof material raw material gross weight.
A kind of Aluminum-chromium-sifireproof fireproof material, described bonding agent is inorganic bonding agent or organic bond.
A kind of Aluminum-chromium-sifireproof fireproof material, described inorganic bonding agent can be the one in aluminium dihydrogen phosphate, phosphoric acid, or the combination solution of two 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 Aluminum-chromium-sifireproof fireproof material, by fused white corundum fine powder, α-Al
2o
3powder, industrial oxidation chrome 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 and mix, and the material after Homogeneous phase mixing is called powder mix, as matrix; In fused white corundum particle and andaluzite particle, add inorganic bonding agent or organic bond, stir after soaking; Add powder mix again, mix; Employing machine pressure mode prepares the molded article of various desired size, within 6 ~ 10 hours, burns till after 24 ~ 36 hours through 100 ~ 110 DEG C of dryings in 1550 ~ 1700 DEG C of insulations.The apparent porosity of the Aluminum-chromium-sifireproof fireproof material obtained is lower than 16%, and volume density is greater than 3.0g/cm
3, cold crushing strength is greater than 80MPa, and refractoriness under load is greater than 1700 DEG C, and especially heat-shock resistance [1100 DEG C × water-cooled] is at least more than 40 times, has excellent thermal shock resistance.
The present invention has following evident characteristic and advantage:
(1) mullite utilizing andaluzite particle high-temperature to decompose to be formed and separate out silicon oxide and the mullite synthesized by aluminum oxide, clay decompose formed once and secondary mullite, quartzy, SiO
2micro mist, the mullite synthesized by fused quartz, it is low that above-mentioned mullite has thermal expansivity, thus effectively improve goods thermal shock resistance, adapted to industrial furnace temperature fluctuation and technological operation needs;
(2) Cr introduced
2o
3the mullite being distributed in goods mutually in or be present in glassy phase, effectively improve goods erosion-resisting characteristics in use, extend the work-ing life of industrial furnace;
(3) Aluminum-chromium-sifireproof fireproof material of the present invention, takes full advantage of the superior thermal shock stability that the erosion-resisting characteristics of chromic oxide excellence and mullite low-expansion coefficient bring, and it is effectively unified in.
Therefore, compared with conventional aluminum chrome refractory, the apparent porosity of the Aluminum-chromium-sifireproof fireproof material that the present invention obtains, lower than 16%, lower than the apparent porosity 16 ~ 19% of conventional aluminum chrome refractory, thus has excellent erosion-resisting characteristics; Its heat-shock resistance [1100 DEG C × water-cooled], at least more than 40 times, is significantly higher than about 20 times of conventional aluminum chrome refractory, has excellent thermal shock resistance.Compared with traditional Corundum Mullite Refractory, the chromic oxide of the Aluminum-chromium-sifireproof fireproof material content some amount that the present invention obtains, there is excellent resistance to fouling, its refractoriness under load > 1700 DEG C 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 carries out optimum matching to particle according to the distribution of the continuous sized particles of heap sum of discontinuous sized particles with piling up, fully in conjunction with the erosion-resisting characteristics of chromic oxide excellence and the excellent thermal shock resistance of mullite.Add α-Al
2o
3powder, industrial oxidation chrome 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 high-quality Aluminum-chromium-sifireproof fireproof material.In the following embodiments, the Al of fused white corundum
2o
3>=98%, the granularity < 0.088mm of fused white corundum fine powder; Granularity 1 ~ the 0.1mm of andaluzite particle, Al
2o
3>=58%; α-Al
2o
3the granularity < 0.044mm of powder, Al
2o
3>=99%; The granularity < 0.044mm of industrial oxidation chrome green, Cr
2o
3>=99%; The granularity < 0.088mm of chromic oxide fine powder, Cr
2o
3>=95%; The granularity < 0.044mm of clay fine powder, the Al after deduction igloss
2o
335 ~ 48%, Al
2o
3+ SiO
2>=96%; SiO
2the granularity of micro mist is < 0.044mm, SiO
2>=90%; The granularity < 0.044mm of quartz fine powder, SiO
2>=98%; The granularity < 0.044mm of fused quartz fine powder, SiO
2>=98%.
Embodiment 1: a kind of Aluminum-chromium-sifireproof fireproof material, the feed composition of Aluminum-chromium-sifireproof fireproof material and mass percent are: granularity is the fused white corundum particle 40% of 0.1 ~ 3mm, granularity is the andaluzite 25% of 0.1 ~ 1mm, fused white corundum fine powder 15%, the α-Al of granularity < 0.088mm
2o
3powder 5%, the clay fine powder 5% of industrial oxidation chrome green 10%, granularity < 0.044mm; 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 3mm, being greater than 2mm, is less than or equal to 2mm, is greater than 1mm, is less than or equal to 1mm, is greater than 0.1mm and carries out grating, and account for 15% of Aluminum-chromium-sifireproof fireproof material weight respectively, 20%, 5%.
First by white fused alumina fine powder, α-Al
2o
3powder, industrial oxidation chrome green and clay fine powder mix at mixing equipment, and the powder mix after Homogeneous phase mixing is used as matrix; In fused white corundum particle and andaluzite particle, add phosphate dihydrogen aluminum solution, stir after soaking; Add powder mix again, mix; Employing machine pressure mode prepares the molded article of various desired size, 100 ~ 110 DEG C of dryings 24 ~ 36 hours, finally burns till at 1650 DEG C of insulation 10h.
The volume density of the Aluminum-chromium-sifireproof fireproof material that the present embodiment obtains is 3.1 ~ 3.2g/cm
3, apparent porosity is 14 ~ 15%, and cold crushing strength is 80 ~ 100MPa, refractoriness under load > 1700 DEG C, and heat-shock resistance [1100 DEG C × 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 Aluminum-chromium-sifireproof fireproof material, the feed composition of Aluminum-chromium-sifireproof fireproof material and mass percent are: granularity is the fused white corundum particle 50% of 0.1 ~ 3mm, granularity is the andaluzite 15% of 0.1 ~ 1mm, fused white corundum fine powder 5%, the α-Al of granularity < 0.088mm
2o
3powder 15%, the chromic oxide fine powder 5% of granularity < 0.088mm, the clay fine powder 8% of industrial oxidation chrome green 2%, granularity < 0.044mm; 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 3mm, being greater than 2mm, is less than or equal to 2mm, is greater than 1mm, is less than or equal to 1mm, is greater than 0.1mm and carries out grating, and account for 20% of Aluminum-chromium-sifireproof fireproof material weight respectively, 20%, 10%.
First by white fused alumina fine powder, α-Al
2o
3powder, chromic oxide fine powder, industrial oxidation chrome green and clay fine powder mix at mixing equipment, and the powder mix after Homogeneous phase mixing is used as matrix; In fused white corundum particle and andaluzite particle, add aluminum phosphate solution, stir after soaking; Add powder mix again, mix; Employing machine pressure mode prepares the molded article of various desired size, 100 ~ 110 DEG C of dryings 24 ~ 36 hours, finally burns till at 1600 DEG C of insulation 10h.
The volume density of the Aluminum-chromium-sifireproof fireproof material that the present embodiment obtains is 3.1 ~ 3.2g/cm
3, apparent porosity is 14 ~ 15%, and cold crushing strength is 120 ~ 150MPa, refractoriness under load > 1700 DEG C, and heat-shock resistance [1100 DEG C × 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 Aluminum-chromium-sifireproof fireproof material, the feed composition of Aluminum-chromium-sifireproof fireproof material and mass percent are: granularity is the fused white corundum particle 55% of 0.1 ~ 3mm, granularity is the andaluzite 10% of 0.1 ~ 1mm, fused white corundum fine powder 8%, the α-Al of granularity < 0.088mm
2o
3powder 5%, the chromic oxide fine powder 5% of granularity < 0.088mm, the clay fine powder 15% of industrial oxidation chrome green 2%, granularity < 0.044mm; 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 3mm, being greater than 2mm, is less than or equal to 2mm, is greater than 1mm, is less than or equal to 1mm, is greater than 0.1mm and carries out grating, and account for 20% of Aluminum-chromium-sifireproof fireproof material weight respectively, 20%, 15%.
First by white fused alumina fine powder, α-Al
2o
3powder, chromic oxide fine powder, industrial oxidation chrome green and clay fine powder mix at mixing equipment, and the powder mix after Homogeneous phase mixing is used as matrix; In fused white corundum particle and andaluzite particle, add phosphoric acid solution, stir after soaking; Add powder mix again, mix; Employing machine pressure mode prepares the molded article of various desired size, 100 ~ 110 DEG C of dryings 24 ~ 36 hours, finally burns till at 1550 DEG C of insulation 10h.
The volume density of the Aluminum-chromium-sifireproof fireproof material that the present embodiment obtains is 3.0 ~ 3.1g/cm
3, apparent porosity is 15 ~ 16%, and cold crushing strength is 120 ~ 140MPa, refractoriness under load > 1700 DEG C, and heat-shock resistance [1100 DEG C × 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 Aluminum-chromium-sifireproof fireproof material, the feed composition of Aluminum-chromium-sifireproof fireproof material and mass percent are: granularity is the fused white corundum particle 50% of 0.1 ~ 3mm, granularity is the andaluzite 15% of 0.1 ~ 1mm, fused white corundum fine powder 11%, the α-Al of granularity < 0.088mm
2o
3powder 8%, the chromic oxide fine powder 4% of granularity < 0.088mm, the SiO of clay fine powder 5%, the granularity < 0.044mm of industrial oxidation chrome green 2%, granularity < 0.044mm
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 3mm, being greater than 2mm, is less than or equal to 2mm, is greater than 1mm, is less than or equal to 1mm, is greater than 0.1mm and carries out grating, and account for 20% of Aluminum-chromium-sifireproof fireproof material weight respectively, 25%, 5%.
First by white fused alumina fine powder, α-Al
2o
3powder, chromic oxide fine powder, industrial oxidation chrome green, clay fine powder and SiO
2micro mist mixes at mixing equipment, and the powder mix after Homogeneous phase mixing is used as matrix; In fused white corundum particle and andaluzite particle, add dextrin solution, stir after soaking; Add powder mix again, mix; Employing machine pressure mode prepares the molded article of various desired size, 100 ~ 110 DEG C of dryings 24 ~ 36 hours, finally burns till at 1600 DEG C of insulation 10h.
The volume density of the Aluminum-chromium-sifireproof fireproof material that the present embodiment obtains is 3.1 ~ 3.2g/cm
3, apparent porosity is 14 ~ 15%, and cold crushing strength is 130 ~ 150MPa, refractoriness under load > 1700 DEG C, and heat-shock resistance [1100 DEG C × 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 Aluminum-chromium-sifireproof fireproof material, the feed composition of Aluminum-chromium-sifireproof fireproof material and mass percent are: granularity is the fused white corundum particle 50% of 0.1 ~ 3mm, granularity is the andaluzite 15% of 0.1 ~ 1mm, fused white corundum fine powder 11%, the α-Al of granularity < 0.088mm
2o
3powder 8%, the chromic oxide fine powder 4% of granularity < 0.088mm, the quartzy fine powder 5% of clay fine powder 4%, the granularity < 0.044mm of industrial oxidation chrome green 3%, granularity < 0.044mm; 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 3mm, being greater than 2mm, is less than or equal to 2mm, is greater than 1mm, is less than or equal to 1mm, is greater than 0.1mm and carries out grating, and account for 20% of Aluminum-chromium-sifireproof fireproof material weight respectively, 25%, 5%.
First by white fused alumina fine powder, α-Al
2o
3powder, chromic oxide fine powder, industrial oxidation chrome green, clay fine powder and quartzy fine powder mix at mixing equipment, and the powder mix after Homogeneous phase mixing is used as matrix; In fused white corundum particle and andaluzite particle, add calcium lignosulfonate solution, stir after soaking; Add powder mix again, mix; Employing machine pressure mode prepares the molded article of various desired size, 100 ~ 110 DEG C of dryings 24 ~ 36 hours, finally burns till at 1700 DEG C of insulation 10h.
The volume density of the Aluminum-chromium-sifireproof fireproof material that the present embodiment obtains is 3.1 ~ 3.2g/cm
3, apparent porosity is 14 ~ 15%, and cold crushing strength is 120 ~ 140MPa, refractoriness under load > 1700 DEG C, and heat-shock resistance [1100 DEG C × 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 Aluminum-chromium-sifireproof fireproof material, the feed composition of Aluminum-chromium-sifireproof fireproof material and mass percent are: granularity is the fused white corundum particle 50% of 0.1 ~ 3mm, granularity is the andaluzite 15% of 0.1 ~ 1mm, fused white corundum fine powder 9%, the α-Al of granularity < 0.088mm
2o
3powder 10%, the chromic oxide fine powder 3% of granularity < 0.088mm, the fused quartz powder 5% of clay fine powder 5%, the granularity < 0.044mm of industrial oxidation chrome green 3%, granularity < 0.044mm; 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 3mm, being greater than 2mm, is less than or equal to 2mm, is greater than 1mm, is less than or equal to 1mm, is greater than 0.1mm and carries out grating, and account for 20% of Aluminum-chromium-sifireproof fireproof material weight respectively, 25%, 5%.
First by white fused alumina fine powder, α-Al
2o
3powder, chromic oxide fine powder, industrial oxidation chrome green, clay fine powder and fused quartz powder mix at mixing equipment, and the powder mix after Homogeneous phase mixing is used as matrix; In fused white corundum particle and andaluzite particle, add glucose solution, stir after soaking; Add powder mix again, mix; Employing machine pressure mode prepares the molded article of various desired size, 100 ~ 110 DEG C of dryings 24 ~ 36 hours, finally burns till at 1700 DEG C of insulation 10h.
The volume density of the Aluminum-chromium-sifireproof fireproof material that the present embodiment obtains is 3.1 ~ 3.2g/cm
3, apparent porosity is 14 ~ 15%, and cold crushing strength is 130 ~ 150MPa, refractoriness under load > 1700 DEG C, and heat-shock resistance [1100 DEG C × water-cooled] is 50 times; Chemical composition, Al
2o
3: 79.5%; Cr
2o
3: 5.8%; SiO
2: 12.8%.
Claims (10)
1. an Aluminum-chromium-sifireproof fireproof material, it is characterized in that: feed composition and mass percent are: granularity is the fused white corundum particle 40 ~ 60% of 0.1 ~ 3mm, fused white corundum particle is by being less than or equal to 3mm, being greater than 2mm, be less than or equal to 2mm, be greater than 1mm, be less than or equal to 1mm, be greater than 0.1mm sieving and grading, and account for 10 ~ 25%, 10 ~ 25%, 5 ~ 20% of Aluminum-chromium-sifireproof fireproof material weight respectively; Granularity is the andaluzite particle 5 ~ 25% of 0.1 ~ 1mm; The fused white corundum fine powder 5 ~ 20% of granularity < 0.088mm; α-the Al of granularity < 0.044mm
2o
3powder 5 ~ 20%; The chromic oxide fine powder 0 ~ 10% of granularity < 0.088mm; The industrial oxidation chrome green 2 ~ 12% of granularity < 0.044mm; The clay 2 ~ 15% of granularity < 0.044mm; The SiO of granularity < 0.044mm
2micro mist 0 ~ 10%; The quartzy fine powder 0 ~ 10% of granularity < 0.044mm; The fused quartz fine powder 0 ~ 10% of granularity < 0.044mm; Add bonding agent in addition, bonding agent is 1 ~ 5% of above-mentioned raw materials gross weight; Al in described Aluminum-chromium-sifireproof fireproof material
2o
3content is 75 ~ 85%, Cr
2o
3content is 4 ~ 10%, SiO
2content is 8 ~ 15%; The apparent porosity of the Aluminum-chromium-sifireproof fireproof material obtained is lower than 16%, and volume density is greater than 3.0g/cm
3, cold crushing strength is greater than 80MPa, and refractoriness under load is greater than 1700 DEG C, and especially under 1100 DEG C ~ water-cooled test conditions, its thermal shock number, at least more than 40 times, has excellent thermal shock resistance.
2. Aluminum-chromium-sifireproof fireproof material 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 ~ 3mm, fused white corundum particle is by being less than or equal to 3mm, being greater than 2mm, be less than or equal to 2mm, be greater than 1mm, be less than or equal to 1mm, be greater than 0.1mm sieving and grading, and accounting for 15 ~ 20%, 20 ~ 25%, 5 ~ 15% of Aluminum-chromium-sifireproof fireproof material weight respectively, granularity is the andaluzite particle 10 ~ 25% of 0.1 ~ 1mm;
The fused white corundum fine powder 5 ~ 15% of < 0.088mm;
α-the Al of < 0.044mm
2o
3powder 5 ~ 15%;
The chromic oxide fine powder 0 ~ 5% of < 0.088mm;
The industrial oxidation chrome green 2 ~ 10% of < 0.044mm;
The clay fine powder 4 ~ 15% of < 0.044mm;
The SiO of < 0.044mm
2micro mist 0 ~ 5%;
The quartzy fine powder 0 ~ 5% of granularity < 0.044mm; ;
The fused quartz fine powder 0 ~ 5% of granularity < 0.044mm;
Add bonding agent in addition, the add-on of bonding agent is 1 ~ 5% of Aluminum-chromium-sifireproof fireproof material raw material gross weight.
3. Aluminum-chromium-sifireproof fireproof material as claimed in claim 1 or 2, is characterized in that: andaluzite grain graininess 0.1 ~ 1mm, Al
2o
3>=58%.
4. Aluminum-chromium-sifireproof fireproof material as claimed in claim 1 or 2, is characterized in that: the granularity < 0.044mm of clay fine powder, the Al of clay fine powder after deduction igloss
2o
335 ~ 48%, Al
2o
3+ SiO
2>=96%.
5. Aluminum-chromium-sifireproof fireproof material as claimed in claim 1 or 2, is characterized in that: SiO
2powder size < 0.044mm, SiO
2>=90%; Quartz powder particle size < 0.044mm, SiO
2>=98%; Fused quartz powder particle size < 0.044mm, SiO
2>=98%.
6. Aluminum-chromium-sifireproof fireproof material as claimed in claim 1 or 2, is characterized in that: industrial oxidation chrome green granularity < 0.044mm, Cr
2o
3>=99%; Chromic oxide powder particle size < 0.088mm.
7. Aluminum-chromium-sifireproof fireproof material 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 < 0.044mm.
8. Aluminum-chromium-sifireproof fireproof material as claimed in claim 1 or 2, is characterized in that: described bonding agent is inorganic bonding agent or organic bond.
9. Aluminum-chromium-sifireproof fireproof material as claimed in claim 1, it is characterized in that: described bonding agent is inorganic bonding agent, described inorganic bonding agent is the one in aluminium dihydrogen phosphate, phosphoric acid, or the combination solution of two kinds; Described organic bond is the one in dextrin, glucose, calcium lignin sulphonate, or the combination solution of two kinds, three kinds wherein.
10. Aluminum-chromium-sifireproof fireproof material as claimed in claim 1 or 2, is characterized in that: described Aluminum-chromium-sifireproof fireproof material is: by granularity < 0.088mm fused white corundum fine powder, α-Al
2o
3powder, industrial oxidation chrome green, clay fine powder or chromic oxide fine powder or SiO
2micro mist or quartzy fine powder or fused quartz powder carry out at mixing equipment giving the powder mix be mixed to get, as matrix; Described bonding agent is inorganic bonding agent or organic bond; Described inorganic bonding agent or organic bond add in fused white corundum particle and andaluzite particle, stir after soaking; Add powder mix again, mix; Employing machine pressure mode prepares the molded article of various desired size, within 6 ~ 10 hours, burns till, obtain through 100 ~ 110 DEG C of dryings after 24 ~ 36 hours in 1550 ~ 1700 DEG C of insulations.
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| CN106045531B (en) * | 2016-05-31 | 2021-01-12 | 浙江汇力胶囊有限公司 | Castable for prefabricated grate |
| 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 |
| CN111533543B (en) * | 2020-05-22 | 2022-11-29 | 中钢集团洛阳耐火材料研究院有限公司 | 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 |
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| 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 |
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| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1513802A (en) * | 2002-07-08 | 2004-07-21 | 赵文厚 | Aluminium chromium guality refractory material and its production method |
| 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 |
| CN102515783A (en) * | 2011-10-26 | 2012-06-27 | 邬树其 | Heat accumulating type zirconium-chromium-corundum nozzle anti-fire brick and manufacturing method thereof |
| 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 |
-
2013
- 2013-12-20 CN CN201310705438.5A patent/CN103755361B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1513802A (en) * | 2002-07-08 | 2004-07-21 | 赵文厚 | Aluminium chromium guality refractory material and its production method |
| 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 |
| CN102515783A (en) * | 2011-10-26 | 2012-06-27 | 邬树其 | Heat accumulating type zirconium-chromium-corundum nozzle anti-fire brick and manufacturing method thereof |
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