CN107555970A - One kind utilizes discarded Al2O3C production fish torpedo ladles Al2O3SiC C refractory brick and preparation method thereof - Google Patents
One kind utilizes discarded Al2O3C production fish torpedo ladles Al2O3SiC C refractory brick and preparation method thereof Download PDFInfo
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Abstract
The invention belongs to Ferrous Metallurgy fire resisting material field, is specially that a kind of utilize discards Al2O3C-material production fish torpedo ladle Al2O3SiC C refractory brick and preparation method thereof.Its raw materials by weight proportioning is as follows：Particle diameter is 5 3mm superfine bauxites particles 10 40%, particle diameter is 3 1mm superfine bauxites particles 10 30%, particle diameter is 1 0.088mm corundum in granules 5 20%, particle diameter is less than 0.088mm corundum fine powders 5 20%, particle diameter is 1 0.088mm silicon-carbide particles 2 8%, particle diameter is less than 0.088mm carbide fine powders 2 8%, particle diameter is less than 0.088mm and discards Al2O3C-material fine powder 10 25%, particle diameter are less than 0.088mm alumina powders 5 15%, particle diameter is less than 0.088mm bonding clays fine powder 3 10%, particle diameter is less than 0.088mm crystalline graphite powders 1 10%, particle diameter is less than 0.088mm asphalt powders 0.5 5%, additional phenolic resin 4 8%.
Description
Technical field
The invention belongs to fish torpedo ladle work in Ferrous Metallurgy fire resisting material field, more particularly to molten iron applied in manufacturing process of pretreatment
Make the Al that lining uses2O3- SiC-C bricks field, it is specially that a kind of utilize discards Al2O3- C-material production fish torpedo ladle Al2O3-SiC-
C refractory brick and preparation method thereof.
Background technology
Molten iron pretreatment is the important step during Ferrous Metallurgy, and it is for improving product quality, optimization production procedure
Vital effect is played with production cost is reduced, so the performance of matching Refractory for Hot Metal Pretreatment and use
Life-span is then most important.During work, torpedo tank liner in addition to being soaked repeatedly by the thermal shock of molten iron and melting loss, high temperature liquid iron,
Violent scour and the erosion of slag are also subject to, so fish torpedo ladle working lining generally uses big elevated temperature strength, resistance to erosion, resisted at present
Good thermal shock stability, the Al of slag-resistant, iron-resistant water erosion and superior permeability2O3- SiC-C brick masonries.Traditional Al2O3-SiC-
C bricks are typically used as primary raw material using alumine, corundum, carborundum, graphite, alumina powder etc., and phenolic resin is as knot
Mixture, formed after dispensing, mixed grind, mechanical pressing, heat treatment.
Functional refractory is a kind of special refractories formed with the development of Ferrous Metallurgy continuous casting technology, wherein
Continuous-casting three-main-product is the key for realizing high efficiency continuous casting, and its performance directly affects casting efficiency and billet quality.During use, even
Casting three-major-items repeatedly, are frequently subjected to molten steel thermal shock and the vigorous erosion of slag liquid effect, it is therefore desirable to which continuous-casting three-main-product must have
Excellent elevated temperature strength, high thermal shock resistance and resistance to flaking, high corrosion resistance.At present, continuous-casting three-main-product all selects high temperature strong
The Al that degree is big, resistance to erosion, heat-resistant knocking stability are good, slag-resistant, anti-molten steel aggressivity are excellent2O3- C materials, be typically chosen corundum,
Graphite, alumina powder, antioxidant etc. are used as primary raw material, and phenolic resin is as bonding agent, through dispensing, mixed grind, isostatic pressed
It is made after shaping, heat treatment, roasting, X- carrying out flaw detection.To ensure the excellent properties of product, continuous-casting three-main-product is using top grade
Raw material, and the raw material granularity limit is small, product must carry out X- carrying out flaw detection to exclude product internal flaw, substandard product after shaping
It must give it up, substantial amounts of substandard product, serious waste of resources have been piled up in production scene.Therefore, it is necessary to will be substantial amounts of former
Expect the discarded Al of excellent performance2O3- C-material carries out rational secondary use.
The content of the invention
In view of the above-mentioned problems of the prior art, the present invention, which provides a kind of utilize, discards Al2O3- C-material produces fish torpedo ladle
Use Al2O3- SiC-C refractory brick and preparation method thereof, disclose the discarded Al that a kind of part material uses excellent performance2O3- C materials
Material production fish torpedo ladle work liner Al2O3The method of-SiC-C refractory brick, the Al produced2O3- SiC-C refractory brick can meet
The requirement of fish torpedo ladle, hence it is evident that improve its service life.
To achieve these goals, it is provided by the invention to utilize discarded Al2O3- C-material production fish torpedo ladle Al2O3-SiC-
C refractory brick, its raw materials by weight proportioning are as follows：Particle diameter is 5-3mm superfine bauxite particles 10-40%, particle diameter is
It is firm that 3-1mm superfine bauxite particles 10-30%, particle diameter are 1-0.088mm corundum in granules 5-20%, particle diameter is less than 0.088mm
Beautiful fine powder 5-20%, particle diameter are 1-0.088mm silicon-carbide particles 2-8%, particle diameter is less than 0.088mm carbide fine powders 2-8%, particle diameter
Al is discarded less than 0.088mm2O3- C-material fine powder 10-25%, particle diameter are less than 0.088mm alumina powders 5-15%, particle diameter is less than
0.088mm bonding clay fine powders 3-10%, particle diameter are less than 0.088mm crystalline graphite powders 1-10%, particle diameter is less than 0.088mm asphalt powders
0.5-5%, additional phenolic resin 4-8%.
Quality of alumina degree is not less than 88% in the superfine bauxite particle.
The corundum in granules and corundum fine powder use one kind in fused brown corundum, plate diamond spar, dense alumina simultaneously, its
Middle fused brown corundum quality of alumina degree is not less than 94%, and plate diamond spar quality of alumina is not less than 99% than content,
Dense alumina quality of alumina degree is not less than 98%.
Carborundum mass percentage content is not less than 97% in the silicon-carbide particle and fine powder.
The discarded Al2O3- C-material is with Al2O3- C-material is the discarded continuous-casting three-main-product of raw material（Long nozzle, immersion
The mouth of a river, integral column of sagger）In one kind；Wherein, quality of alumina degree 50-65%, carbon mass percentage content 15-
30%, silica quality degree 8-10%, zirconium oxide mass percentage content 0-15%.
Quality of alumina degree is not less than 99% in the alumina powder.
Quality of alumina degree 25-35% in the bonding clay powder.
Carbon mass percentage content is not less than 97% in the crystalline graphite powder.
Carbon residue mass percentage content is not less than 45% in the asphalt powder.
The bonding agent phenolic resin is thermosetting resin, and wherein carbon residue mass percentage content is not less than 45%, under normal temperature
For liquid.
To achieve these goals, it is provided by the invention to utilize discarded Al2O3- C-material production fish torpedo ladle Al2O3-SiC-
The preparation method of C refractory brick, specifically includes following steps.
Step 1, discarded Al2O3The selection and pretreatment of-C-material.
By unqualified continuous-casting three-main-product（Long nozzle, submersed nozzle, integral column of sagger）Product classification is deposited, manually by surface
The dust of adhesion removes, and fine powder material of the particle diameter less than 0.088mm is prepared into through coarse crushing, in small, broken bits, fine grinding process, then through magnetic separator
Fe is removed, it is standby.
The preparation of step 2, raw material proportioning and refractory brick.
After various raw materials being weighed by required percentage by weight（Make Al2O3- SiC-C refractory brick carbonaceous amount proportions are 6-8%）, first
Superfine bauxite particle, corundum in granules, silicon-carbide particle are added and force to be kneaded 5-10 minutes in puddle mixer；Then add
Phenolic resin is further continued for being kneaded 5-10 minutes, adds crystalline graphite powder and is kneaded 5-10 minutes；It is eventually adding corundum fine powder, carbonization
Silica fine powder, discarded Al2O3- C-material fine powder, alumina powder, bonding clay fine powder and asphalt powder, 30-35 minutes are kneaded, are obtained
Well mixed pug；Then by pug on brick machine it is compressing, adobe after shaping is under the conditions of 180-200 DEG C at heat
Manage 24h, finished product refractory brick.
Compared with prior art, the invention has the advantages that.
Molten iron pretreatment fish torpedo ladle Al produced by the invention2O3- SiC-C bricks add waste material, saved brickmaking into
This, 40-60% can be reduced relative to traditional process costs；Al2O3- SiC-C bricks are in use, base portion is most vulnerable to molten iron
Wash away erosion and destroy, therefore, to improve Al2O3The service life of-SiC-C bricks, it is necessary to strengthen substrate performance；Continuous casting three is big
The raw materials used plate diamond spar of part, Brown Alundum, dense alumina are high-grade raw material, and the granularity limit is 0.5mm, and powder dosage is more than
50%, use batch mixing during production, be granulated, mechanical pressing, the special process of isostatic pressing, obtained extrudate density uniformly, composition
Uniformly, densification degree is high, normal temperature strength is big, and therefore, the present invention is selected the discarded Al containing high-grade raw material2O3- SiC-C materials
Material wears into fine powder and adds Al2O3To improve substrate performance in-SiC-C bricks.YB/T 164-2009 regulation molten iron pretreatments are used
Al2O3- SiC-C brick molten iron area C content is not less than 6%, and slag line area C content is not less than 8%, Al produced by the invention2O3- SiC-C bricks
Be subject primarily to for torpedo pot iron pool, during work high temperature liquid iron wash away and corrosion function, so Al produced by the invention2O3-
It is 6-8% that SiC-C bricks, which control its carbonaceous amount proportion,.Research finds that underproof continuous-casting three-main-product is worn into fine powder is added to
Al2O3Equivalent to addition high density Al in-SiC-C bricks2O3- C homogeneous materials, with existing Al2O3- SiC-C bricks are compared, base under high temperature
The Al generated in matter4C3, the non-oxidized substance showed increased such as SiC, crystal development is grown up, and degree is more preferable, and the degree that is evenly distributed is higher, shows
The high temperature break resistant intensity for improving refractory brick is write, the high-melting-point zirconium oxide contained in particularly discarded submersed nozzle can significantly improve
Al2O3The high temperature break resistant intensity of-SiC-C bricks, the anti-slag iron aggressivity and thermal shock resistance of refractory brick can be also significantly improved, it is and existing
Fish torpedo ladle Al2O3- SiC-C bricks are compared, and high temperature break resistant intensity improves 30-55%；Using discarded continuous-casting three-main-product as fire resisting
Material is raw material, realizes recycling for resource, while it is high-quality resistance to greatly save Brown Alundum, plate diamond spar, dense alumina etc.
Fiery raw material, reduce energy resource consumption when smelting Brown Alundum, plate diamond spar, dense alumina and the discharge of carbon dioxide, it is real
The coordinated development of development of resources and environmental protection is showed.
Embodiment
The present invention is further described with reference to specific embodiment.
Embodiment 1.
Utilize discarded Al2O3- C-material production fish torpedo ladle Al2O3- SiC-C refractory brick, its raw materials by weight are matched somebody with somebody
Than as follows：Particle diameter is 5-3mm superfine bauxites particle 30%, particle diameter is 3-1mm superfine bauxites particle 15%, particle diameter
For 1-0.088mm corundum in granules 15%, particle diameter is less than 0.088mm corundum fine powders 9.5%, particle diameter is 1-0.088mm silicon-carbide particles
5%th, particle diameter is less than 0.088mm carbide fine powders 3%, particle diameter is less than 0.088mm and discards long nozzle Al2O3- C fine powders 10%, particle diameter are small
In 0.088mm alumina powders 5%, particle diameter is less than 0.088mm bonding clays powder 4%, particle diameter is less than 0.088mm crystalline graphite powders
3%th, particle diameter is less than 0.088mm asphalt powders 0.5%, additional phenolic resin 5%.
Utilize discarded long nozzle Al2O3- C-material production fish torpedo ladle Al2O3The preparation method of-SiC-C refractory brick is as follows.
After various raw material precises, first superfine bauxite particle, corundum in granules, silicon-carbide particle are added strong
It is kneaded in puddle mixer processed 10 minutes, then adds phenolic resin and be kneaded 10 minutes, add crystalline graphite powder mixing 8 minutes, most
Corundum fine powder, carbide fine powder, discarded long nozzle Al are added afterwards2O3- C-material fine powder, alumina powder, bonding clay fine powder, drip
Blue or green powder is kneaded 30 minutes and obtains well mixed pug, then by pug on brick machine it is compressing, the adobe after shaping exists
24h finished product bricks are heat-treated at 180 DEG C.
Quality of alumina degree 88.15% in the superfine bauxite particle.
The corundum in granules and corundum fine powder use fused brown corundum, quality of alumina degree 94.33% simultaneously.
Carborundum mass percentage content 97.66% in the silicon-carbide particle and fine powder.
Described discarded Al2O3- C-material is discarded long nozzle, is processed into fine powder, discards long nozzle quality of alumina
Than content 64.64%, carbon quality is than content 25.45%, and for silica quality than content 9.76%, surplus is impurity.
Quality of alumina degree 99.86% in the alumina powder.
Quality of alumina degree 30.76% in the bonding clay powder.
Carbon mass percentage content 97.13% in the crystalline graphite powder.
Carbon residue mass percentage content 45.66% in the asphalt powder.
The bonding agent phenolic resin is thermosetting resin, wherein carbon residue mass percentage content 45.17%, is under normal temperature
Liquid.
Embodiment 2.
Utilize discarded Al2O3- C-material production fish torpedo ladle Al2O3- SiC-C refractory brick, its raw materials by weight are matched somebody with somebody
Than as follows：Particle diameter is 5-3mm superfine bauxites particle 25%, particle diameter is 3-1mm superfine bauxites particle 20%, particle diameter
For 1-0.088mm corundum in granules 8.5%, particle diameter is less than 0.088mm corundum fine powders 6%, particle diameter is 1-0.088mm silicon-carbide particles
3%th, particle diameter is less than 0.088mm carbide fine powders 3%, particle diameter is less than 0.088mm and discards submersed nozzle Al2O3- C fine powders 25%, grain
Footpath is less than 0.088mm alumina powders 5%, particle diameter is less than 0.088mm bonding clays fine powder 3%, particle diameter is less than 0.088mm scale stones
Ink powder 1%, particle diameter are less than 0.088mm asphalt powders 0.5%, additional phenolic resin 4%.
Utilize discarded submersed nozzle Al2O3- C-material production fish torpedo ladle Al2O3The preparation method of-SiC-C refractory brick is such as
Under.
After various raw material precises, first superfine bauxite particle, corundum in granules, silicon-carbide particle are added strong
It is kneaded in puddle mixer processed 7 minutes, then adds phenolic resin and be kneaded again 7 minutes, add crystalline graphite powder mixing 6 minutes, most
Corundum fine powder, carbide fine powder, discarded submersed nozzle Al are added afterwards2O3- C-material fine powder, alumina powder, bonding clay are thin
Powder, asphalt powder, which are kneaded, obtains well mixed pug in 35 minutes, then by pug on brick machine compressing, the brick after shaping
Base is heat-treated 24h finished product bricks at 180 DEG C.
Quality of alumina degree 89.25% in the superfine bauxite particle.
The corundum in granules and corundum fine powder use plate diamond spar, quality of alumina degree 99.33% simultaneously.
Carborundum mass percentage content 98.06% in the silicon-carbide particle and fine powder.
Using discarded Al2O3- C-material is that discarded submersed nozzle quality of alumina compares content than content 59.18%, carbon quality
20.08%, silica quality is than content 8.28%, and for zirconium oxide quality than content 12.37%, surplus is impurity.
Quality of alumina degree 99.43% in the alumina powder.
Quality of alumina degree 34.12% in the bonding clay powder.
Carbon mass percentage content 97.42% in the crystalline graphite powder.
Carbon residue mass percentage content 45.28% in the asphalt powder.
The bonding agent phenolic resin is thermosetting resin, wherein carbon residue mass percentage content 45.36%, is under normal temperature
Liquid.
Embodiment 3.
Utilize discarded Al2O3- C-material production fish torpedo ladle Al2O3- SiC-C refractory brick, its raw materials by weight are matched somebody with somebody
Than as follows：Particle diameter is 5-3mm superfine bauxites particle 30%, particle diameter is 3-1mm superfine bauxites particle 15%, particle diameter
For 1-0.088mm corundum in granules 10%, particle diameter is less than 0.088mm corundum fine powders 13%, particle diameter is 1-0.088mm silicon-carbide particles
3%th, particle diameter is less than 0.088mm carbide fine powders 3%, particle diameter is less than 0.088mm and discards integral column of sagger Al2O3- C-material fine powder 12%,
Particle diameter is less than 0.088mm alumina powders 8%, particle diameter is less than 0.088mm bonding clays fine powder 3%, particle diameter is less than 0.088mm scales
Graphite powder 2.5%, particle diameter are less than 0.088mm asphalt powders 0.5%, additional phenolic resin 4%.
Utilize discarded integral column of sagger Al2O3- C-material production fish torpedo ladle Al2O3The preparation method of-SiC-C refractory brick is such as
Under.
After various raw material precises, first superfine bauxite particle, corundum in granules, silicon-carbide particle are added strong
It is kneaded in puddle mixer processed 8 minutes, then adds phenolic resin and be kneaded 8 minutes, add crystalline graphite powder mixing 10 minutes, finally
Add corundum fine powder, carbide fine powder, discarded integral column of sagger Al2O3- C-material fine powder, alumina powder, bonding clay fine powder, squama
Piece graphite powder, asphalt powder, which are kneaded 30 minutes, obtains well mixed pug, then compressing, the shaping on brick machine by pug
Adobe afterwards is heat-treated 24h finished product bricks at 180 DEG C.
Quality of alumina degree 90.25% in the superfine bauxite particle.
The corundum in granules and corundum fine powder use fine and close electro-corundum, quality of alumina degree simultaneously
98.37%。
Carborundum mass percentage content 97.24% in the silicon-carbide particle and fine powder.
Using discarded Al2O3- C-material is that discarded integral column of sagger quality of alumina compares content than content 64.26%, carbon quality
26.63%, for silica quality than content 8.82%, surplus is impurity.
Quality of alumina degree 99.68% in the alumina powder.
Quality of alumina degree 30.96% in the bonding clay powder.
Carbon mass percentage content 97.13% in the crystalline graphite powder.
Carbon residue mass percentage content 45.82% in the asphalt powder.
The bonding agent phenolic resin is thermosetting resin, wherein carbon residue mass percentage content 45.64%, is under normal temperature
Liquid.
Comparative example 1.
Fish torpedo ladle Al2O3- SiC-C refractory brick, its raw materials by weight proportioning are as follows：Particle diameter is 5-3mm superfine aluminium
Bauxite clinker particle 30%, particle diameter are 3-1mm superfine bauxites particle 15%, particle diameter be 1-0.088mm corundum in granules 15%,
Particle diameter is less than 0.088mm corundum fine powders 16.5%, particle diameter is 1-0.088mm silicon-carbide particles 5%, particle diameter is carbonized less than 0.088mm
Silica fine powder 3%, particle diameter are less than 0.088mm alumina powders 5%, particle diameter is less than 0.088mm bonding clay fine powders powder 4%, particle diameter is less than
0.088mm crystalline graphite powders 6%, particle diameter are less than 0.088mm asphalt powders 0.5%, additional phenolic resin 5%.
Quality of alumina degree 89.25% in the superfine bauxite particle.
The corundum in granules and corundum fine powder use fine and close electro-corundum, quality of alumina degree simultaneously
98.25%。
Carborundum mass percentage content 97.56% in the silicon-carbide particle and fine powder.
Quality of alumina degree 99.28% in the alumina powder.
Quality of alumina degree 33.45% in the bonding clay powder.
Carbon mass percentage content 97.56% in the crystalline graphite powder.
Carbon residue mass percentage content 45.23% in the asphalt powder.
The bonding agent phenolic resin is thermosetting resin, wherein carbon residue mass percentage content 45.14%, is under normal temperature
Liquid.
The preparation method of comparative example 1 is the same as embodiment 1.
Comparative example 2.
Fish torpedo ladle Al2O3- SiC-C refractory brick, its raw materials by weight proportioning are as follows：Particle diameter is 5-3mm superfine aluminium
Bauxite clinker particle 30%, particle diameter are 3-1mm superfine bauxites particle 20%, particle diameter be 1-0.088mm corundum in granules 12%,
Particle diameter is less than 0.088mm corundum fine powders 15.5%, particle diameter is 1-0.088mm silicon-carbide particles 3%, particle diameter is carbonized less than 0.088mm
It is small less than 0.088mm bonding clay fine powders powder 3%, particle diameter that silica fine powder 5%, particle diameter are less than 0.088mm alumina powders 5.5%, particle diameter
It is less than 0.088mm asphalt powders 0.5%, additional phenolic resin 5% in 0.088mm crystalline graphite powders 5.5%, particle diameter.
The preparation method of comparative example 2 is the same as embodiment 1.
Quality of alumina degree 88.89% in the superfine bauxite particle.
The corundum in granules and corundum fine powder use Brown Alundum, quality of alumina degree 94.25% simultaneously.
Carborundum mass percentage content 97.24% in the silicon-carbide particle and fine powder.
Quality of alumina degree 99.55% in the alumina powder.
Quality of alumina degree 31.45% in the bonding clay powder.
Carbon mass percentage content 97.23% in the crystalline graphite powder.
Carbon residue mass percentage content 45.88% in the asphalt powder.
The bonding agent phenolic resin is thermosetting resin, wherein carbon residue mass percentage content 45.67%, is under normal temperature
Liquid.
The Al that 3 embodiments and 2 comparative examples obtain2O3- SiC-C brick the performance test results, are shown in Table 1.
The Al of table 12O3- SiC-C brick the performance test results.
As can be seen from Table 1, the present invention utilizes discarded Al2O3- C-material production fish torpedo ladle Al2O3- SiC-C refractory brick exists
On the basis of ensureing normal temperature performance, high temperature break resistant intensity significantly improves, increase rate 30-55%.
Claims (9)
1. one kind utilizes discarded Al2O3- C-material production fish torpedo ladle Al2O3- SiC-C refractory brick, it is characterised in that its raw material bag
Include：Particle diameter is 5-3mm superfine bauxite particles 10-40%, particle diameter is 3-1mm superfine bauxite particles 10-30%, grain
Footpath is 1-0.088mm corundum in granules 5-20%, particle diameter is less than 0.088mm corundum fine powders 5-20%, particle diameter is 1-0.088mm carborundum
Particle 2-8%, particle diameter are less than 0.088mm carbide fine powders 2-8%, particle diameter is less than 0.088mm and discards Al2O3- C-material fine powder 10-
25%th, particle diameter is less than 0.088mm alumina powders 5-15%, particle diameter is less than 0.088mm bonding clay fine powders 3-10%, particle diameter is less than
0.088mm crystalline graphite powders 1-10%, particle diameter are less than 0.088mm asphalt powders 0.5-5%, additional phenolic resin 4-8%.
2. as claimed in claim 1 utilize discarded Al2O3- C-material production fish torpedo ladle Al2O3- SiC-C refractory brick, its feature
It is, quality of alumina is not less than 88% than content in the superfine bauxite particle；In the silicon-carbide particle and fine powder
Carborundum mass percentage content is not less than 97%.
3. as claimed in claim 1 utilize discarded Al2O3- C-material production fish torpedo ladle Al2O3- SiC-C refractory brick, its feature
It is, the corundum in granules and corundum fine powder use one kind in fused brown corundum, plate diamond spar, dense alumina simultaneously, wherein
Fused brown corundum quality of alumina degree is not less than 94%, and plate diamond spar quality of alumina is not less than 99% than content, causes
Close corundum quality of alumina degree is not less than 98%.
4. as claimed in claim 1 utilize discarded Al2O3- C-material production fish torpedo ladle Al2O3- SiC-C refractory brick, its feature
It is, the discarded Al2O3- C-material is with Al2O3- C-material is the discarded continuous-casting three-main-product of raw material（Long nozzle, immersion water
Mouth, integral column of sagger）In one kind；Wherein, quality of alumina degree 50-65%, carbon mass percentage content 15-30%,
Silica quality degree 8-10%, zirconium oxide mass percentage content 0-15%.
5. as claimed in claim 1 utilize discarded Al2O3- C-material production fish torpedo ladle Al2O3- SiC-C refractory brick, its feature
In the alumina powder quality of alumina degree be not less than 99%；Quality of alumina in the bonding clay powder
Degree 25-35%；Carbon mass percentage content is not less than 97% in the crystalline graphite powder；Carbon residue matter in the asphalt powder
Measure degree and be not less than 45%；The bonding agent phenolic resin be thermosetting resin, wherein carbon residue mass percentage content not
It is liquid less than 45%, under normal temperature.
6. as claimed in claim 1 utilize discarded Al2O3- C-material production fish torpedo ladle Al2O3- SiC-C refractory brick, its feature
It is, its raw materials by weight proportioning is as follows：Particle diameter is 5-3mm superfine bauxites particle 30%, particle diameter 3-1mm
Superfine bauxite particle 15%, particle diameter are 1-0.088mm corundum in granules 15%, particle diameter is less than 0.088mm corundum fine powders 9.5%,
Particle diameter is 1-0.088mm silicon-carbide particles 5%, particle diameter is less than 0.088mm carbide fine powders 3%, particle diameter is less than the discarded length of 0.088mm
Mouth of a river Al2O3- C fine powders 10%, particle diameter are less than 0.088mm alumina powders 5%, particle diameter is less than 0.088mm bonding clays powder 4%, grain
Footpath is less than 0.088mm crystalline graphite powders 3%, particle diameter is less than 0.088mm asphalt powders 0.5%, additional phenolic resin 5%.
7. as claimed in claim 1 utilize discarded Al2O3- C-material production fish torpedo ladle Al2O3- SiC-C refractory brick, its feature
It is, its raw materials by weight proportioning is as follows：Particle diameter is 5-3mm superfine bauxites particle 25%, particle diameter 3-1mm
Superfine bauxite particle 20%, particle diameter are 1-0.088mm corundum in granules 8.5%, particle diameter is less than 0.088mm corundum fine powders 6%,
Particle diameter is 1-0.088mm silicon-carbide particles 3%, particle diameter is less than 0.088mm carbide fine powders 3%, particle diameter is less than the discarded leachings of 0.088mm
Enter formula mouth of a river Al2O3- C fine powders 25%, particle diameter are less than 0.088mm alumina powders 5%, particle diameter is less than 0.088mm bonding clay fine powders
3%th, particle diameter is less than 0.088mm crystalline graphite powders 1%, particle diameter is less than 0.088mm asphalt powders 0.5%, additional phenolic resin 4%.
8. as claimed in claim 1 utilize discarded Al2O3- C-material production fish torpedo ladle Al2O3- SiC-C refractory brick, its feature
It is, its raw materials by weight proportioning is as follows：Particle diameter is 5-3mm superfine bauxites particle 30%, particle diameter 3-1mm
Superfine bauxite particle 15%, particle diameter are 1-0.088mm corundum in granules 10%, particle diameter is less than 0.088mm corundum fine powders 13%,
Particle diameter be 1-0.088mm silicon-carbide particles 3%, particle diameter be less than 0.088mm carbide fine powders 3%, particle diameter discarded less than 0.088mm it is whole
Body stopper Al2O3- C-material fine powder 12%, particle diameter are less than 0.088mm alumina powders 8%, particle diameter is less than 0.088mm bonding clays
Fine powder 3%, particle diameter are less than 0.088mm crystalline graphite powders 2.5%, particle diameter is less than 0.088mm asphalt powders 0.5%, additional phenolic resin
4%。
9. discarded Al is utilized as described in claim 1-8 is any2O3- C-material production fish torpedo ladle Al2O3- SiC-C refractory brick, its
It is characterised by, specifically includes following steps：
Step 1, discarded Al2O3The selection and pretreatment of-C-material：
By unqualified continuous-casting three-main-product（Long nozzle, submersed nozzle, integral column of sagger）Product classification is deposited, manually by surface adhesion
Dust remove, through coarse crushing, in small, broken bits, fine grinding process be prepared into particle diameter be less than 0.088mm fine powder material, then removed through magnetic separator
Fe, it is standby；
The preparation of step 2, raw material proportioning and refractory brick：
After various raw materials being weighed by required percentage by weight（Make Al2O3- SiC-C refractory brick carbonaceous amount proportions are 6-8%）, first by spy
Level bauxite particle, corundum in granules, silicon-carbide particle, which add, to be forced to be kneaded 5-10 minutes in puddle mixer；Then phenolic aldehyde is added
Resin is further continued for being kneaded 5-10 minutes, adds crystalline graphite powder and is kneaded 5-10 minutes；It is thin to be eventually adding corundum fine powder, carborundum
Powder, discarded Al2O3- C-material fine powder, alumina powder, bonding clay fine powder and asphalt powder, 30-35 minutes are kneaded, are mixed
Uniform pug；Then by pug on brick machine it is compressing, the adobe after shaping is heat-treated under the conditions of 180-200 DEG C
24h, finished product refractory brick.
Priority Applications (1)
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| CN108424155A (en) * | 2018-04-25 | 2018-08-21 | 宜兴市耐火材料有限公司 | It is a kind of to utilize lower nozzle brick and preparation method thereof made of slide plate grinding mud waste material |
| CN109369195A (en) * | 2018-10-30 | 2019-02-22 | 浙江锦诚新材料股份有限公司 | A kind of fish torpedo ladle High-Alumina thermal-state artesian repairing material and preparation method |
| CN109665853A (en) * | 2018-12-21 | 2019-04-23 | 武汉钢铁集团耐火材料有限责任公司 | Hot-metal bottle working lining brick of the dust-removing powder containing stopper and preparation method thereof |
| CN109987950A (en) * | 2019-04-24 | 2019-07-09 | 郑州市瑞沃耐火材料有限公司 | A kind of unburned composite aluminum-carbon SiClx carbon brick |
| CN110330320A (en) * | 2019-07-13 | 2019-10-15 | 南昌航空大学 | A kind of aluminium silicon carbide carbon refractory of low-carbon Ultra-low carbon and preparation method thereof |
| CN110498689A (en) * | 2019-08-01 | 2019-11-26 | 辽宁科技大学 | A kind of calcium hexaluminate whisker reinforcement calcium aluminum fire resistant materials |
| CN111187881A (en) * | 2020-03-04 | 2020-05-22 | 马鞍山钢铁股份有限公司 | Method for recycling waste aluminum-carbon long nozzle to LF refining process |
| CN114873997A (en) * | 2022-03-29 | 2022-08-09 | 内蒙古包钢利尔高温材料有限公司 | Composite lining brick produced by recycling various waste refractory materials for torpedo ladle |
| CN115925397A (en) * | 2022-12-30 | 2023-04-07 | 江苏集萃安泰创明先进能源材料研究院有限公司 | Stopper rod body, stopper rod and preparation method thereof |
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| CN108424155B (en) * | 2018-04-25 | 2021-03-19 | 宜兴市耐火材料有限公司 | Lower nozzle brick prepared from slide plate grinding mud waste and preparation method thereof |
| CN108424155A (en) * | 2018-04-25 | 2018-08-21 | 宜兴市耐火材料有限公司 | It is a kind of to utilize lower nozzle brick and preparation method thereof made of slide plate grinding mud waste material |
| CN109369195A (en) * | 2018-10-30 | 2019-02-22 | 浙江锦诚新材料股份有限公司 | A kind of fish torpedo ladle High-Alumina thermal-state artesian repairing material and preparation method |
| CN109665853A (en) * | 2018-12-21 | 2019-04-23 | 武汉钢铁集团耐火材料有限责任公司 | Hot-metal bottle working lining brick of the dust-removing powder containing stopper and preparation method thereof |
| CN109987950A (en) * | 2019-04-24 | 2019-07-09 | 郑州市瑞沃耐火材料有限公司 | A kind of unburned composite aluminum-carbon SiClx carbon brick |
| CN110330320A (en) * | 2019-07-13 | 2019-10-15 | 南昌航空大学 | A kind of aluminium silicon carbide carbon refractory of low-carbon Ultra-low carbon and preparation method thereof |
| CN110498689A (en) * | 2019-08-01 | 2019-11-26 | 辽宁科技大学 | A kind of calcium hexaluminate whisker reinforcement calcium aluminum fire resistant materials |
| CN111187881A (en) * | 2020-03-04 | 2020-05-22 | 马鞍山钢铁股份有限公司 | Method for recycling waste aluminum-carbon long nozzle to LF refining process |
| CN114873997A (en) * | 2022-03-29 | 2022-08-09 | 内蒙古包钢利尔高温材料有限公司 | Composite lining brick produced by recycling various waste refractory materials for torpedo ladle |
| CN115925397A (en) * | 2022-12-30 | 2023-04-07 | 江苏集萃安泰创明先进能源材料研究院有限公司 | Stopper rod body, stopper rod and preparation method thereof |
| CN115925397B (en) * | 2022-12-30 | 2024-01-23 | 江苏集萃安泰创明先进能源材料研究院有限公司 | Stopper rod body, stopper rod and preparation method of stopper rod |
| CN117226083A (en) * | 2023-11-14 | 2023-12-15 | 山西昊业新材料开发有限公司 | Long nozzle for continuous casting and preparation method thereof |
| CN117226083B (en) * | 2023-11-14 | 2024-01-26 | 山西昊业新材料开发有限公司 | Long nozzle for continuous casting and preparation method thereof |
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