CN106588053A - Castable for blast furnace slag spout - Google Patents
Castable for blast furnace slag spout Download PDFInfo
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- CN106588053A CN106588053A CN201611176651.1A CN201611176651A CN106588053A CN 106588053 A CN106588053 A CN 106588053A CN 201611176651 A CN201611176651 A CN 201611176651A CN 106588053 A CN106588053 A CN 106588053A
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- castable
- parts
- furnace slag
- blast furnace
- corundum
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- 239000002893 slag Substances 0.000 title claims abstract description 46
- 229910052593 corundum Inorganic materials 0.000 claims abstract description 51
- 239000010431 corundum Substances 0.000 claims abstract description 47
- 239000002245 particle Substances 0.000 claims abstract description 22
- 239000002994 raw material Substances 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 8
- 239000000835 fiber Substances 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims description 12
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 8
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 7
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 4
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims 1
- 229910052698 phosphorus Inorganic materials 0.000 claims 1
- 239000011574 phosphorus Substances 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- 239000011734 sodium Substances 0.000 claims 1
- 229910052708 sodium Inorganic materials 0.000 claims 1
- 238000005829 trimerization reaction Methods 0.000 claims 1
- 229910010271 silicon carbide Inorganic materials 0.000 abstract description 9
- 238000002156 mixing Methods 0.000 abstract description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 abstract 1
- 238000001035 drying Methods 0.000 description 12
- 239000000463 material Substances 0.000 description 11
- 238000003756 stirring Methods 0.000 description 11
- 239000003818 cinder Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000011819 refractory material Substances 0.000 description 4
- 238000011049 filling Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- -1 and price is higher Inorganic materials 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 235000019832 sodium triphosphate Nutrition 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910001021 Ferroalloy Inorganic materials 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 229910003978 SiClx Inorganic materials 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910001570 bauxite Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- PNXOJQQRXBVKEX-UHFFFAOYSA-N iron vanadium Chemical compound [V].[Fe] PNXOJQQRXBVKEX-UHFFFAOYSA-N 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
- C04B35/101—Refractories from grain sized mixtures
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3208—Calcium oxide or oxide-forming salts thereof, e.g. lime
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/327—Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3272—Iron oxides or oxide forming salts thereof, e.g. hematite, magnetite
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/38—Non-oxide ceramic constituents or additives
- C04B2235/3817—Carbides
- C04B2235/3826—Silicon carbides
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
- C04B2235/447—Phosphates or phosphites, e.g. orthophosphate or hypophosphite
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
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Abstract
The invention discloses castable and particularly relates to castable for a blast furnace slag spout. The castable for the blast furnace slag spout is prepared by mixing raw materials in parts by weight as follows: 31-33 parts of corundum slag with the particle size ranging from 5 mm to 10 mm, 45-55 parts of corundum slag with the particle size ranging from 2 mm to 5 mm, 15-28 parts of corundum slag with the particle size ranging from 0.045 mm to 2 mm, 10-15 parts of corundum slag with the particle size smaller than 0.045 mm, 4-6 parts of aluminum oxide, 2-4 parts of silicon carbide, 4-5 parts of heat-resistant steel fibers and 0.05-0.15 parts of a water reducing agent. The castable for the blast furnace slag spout is low in cost and long in service life.
Description
Technical field
The present invention relates to castable, especially a kind of castable for blast furnace residue channel stem bar.
Background technology
Domestic big-and-middle-sized blast furnace residue channel stem bar refractory material is typically required：It is high temperature resistant, resistant to corrosion, resistance to erosion, impervious
Thoroughly, high-termal conductivity be particularly resistance to elevated temperatures require it is high.Big-and-middle-sized blast furnace residue channel stem bar refractory material is mainly Al2O3-SiC
Matter castable, its raw material is based on corundum and carborundum, and price is higher, and corundum price is that 3000-6000 per ton is first.
Aluminothermic process is the main method of domestic production vanadium iron, with the existing maturation process of aluminothermic process production high vanadium ferroalloy, in production
During accessory substance be corundum furnace slag, be currently limited to the residual vanadium of second extraction and substitute a small amount of bauxite to produce alloy, exist
Utilization few, the shortcomings of comprehensive utilization value is not high.
Corundum furnace slag is cheap, with Al2O3With MgO be main component, Al2O3Content is more than 70%, MgO10%-
15%, CaO content is 8%-10%, and other are impurity component, wherein the impurity F e being harmful to refractory material2O3Content is 2.0%
Hereinafter, Na2O+K2Below 0.5%, research finds O content, and corundum furnace slag can effectively replace general corundum to give birth to as primary raw material
Produce castable.
Patent CN201110453234.8 discloses a kind of blast furnace iron outlet groove refractory material casting material, and it is matched somebody with somebody by following weight
Than component composition：Corundum furnace slag 25-50 part of 5-10mm；Corundum furnace slag 15-35 part of 2-5mm, corundum furnace slag 5-15 of 0-2mm
Part；Carborundum powder 5-15 parts；Alundum cement or aluminous cement 1-5 parts；Additive 0.1-0.3 parts.In actual production, should
The service life of castable only has 10-15 days, and service life is low, and frequently changing castable causes that production cost is higher, workload
It is excessive.
The content of the invention
The technical problem to be solved be to provide a kind of low cost, long service life for blast furnace residue channel stem bar
Castable.
The present invention solves the castable for blast furnace residue channel stem bar that its technical problem is adopted, in terms of parts by weight, it
It is to be mixed by following raw materials：Particle diameter is 31～33 parts of the corundum furnace slag of 5～10mm, and particle diameter is the corundum furnace slag 45 of 2～5mm
～55 parts, particle diameter is 15～28 parts of the corundum furnace slag of 0.045～2mm, and particle diameter is the corundum furnace slag 10～15 less than 0.045mm
Part, 4～6 parts of aluminum oxide, 2～4 parts of carborundum, 4～5 parts of heat-resistant steel fiber, 0.05～0.15 part of water reducer, wherein, corundum stove
The chemical composition of slag is Al by weight percentage2O3>=75%, MgO11～14%, CaO8～10%, Fe2O3≤ 1%.
It is further that the water reducer is sodium tripolyphosphate or calgon.
It is further that the aluminum oxide is activated alumina.
It is further that the alumina particle is less than or equal to 200 mesh.
The invention has the beneficial effects as follows：Blast furnace residue channel stem bar castable is prepared by replacing corundum to be used as using corundum furnace slag
Main material, significantly reduce the corundum furnace slag of cost, different quality containing and different-grain diameter, particularly particle diameter for 2～
The corundum furnace slag of 5mm, proportion is most heavy, and it is used as base-material, on the one hand plays a part of skeletal support, on the other hand plays and fills out
The effect of charge, makes prepared blast furnace residue channel stem bar castable filling closely knit, improves its performance (resistance to compression, intensity, high temperature resistant),
Improve using effect；Blast furnace residue channel stem bar castable prepared by the present invention contains heat-resistant steel fiber, not only makes adding for carborundum
Enter amount to substantially reduce, reduces cost, and improve the intensity and resistant to elevated temperatures property of prepared blast furnace residue channel stem bar castable
Can, its service life (at least 35 days) is significantly improved, also further reduce production cost.
Specific embodiment
The present invention is used for the castable of blast furnace residue channel stem bar, and in terms of parts by weight, it is mixed by following raw materials：Grain
Footpath is 31～33 parts of the corundum furnace slag of 5～10mm, and particle diameter is 45～55 parts of the corundum furnace slag of 2～5mm, and particle diameter is 0.045～2mm
15～28 parts of corundum furnace slag, particle diameter is 10～15 parts of the corundum furnace slag less than 0.045mm, 4～6 parts of aluminum oxide, carborundum 2～
4 parts, 4～5 parts of heat-resistant steel fiber, 0.05～0.15 part of water reducer, wherein, the chemical composition of corundum furnace slag is by weight percentage
For Al2O3>=75%, MgO11～14%, CaO8～10%, Fe2O3≤ 1%.
Wherein particle diameter is that the corundum furnace slag of 5～10mm is used as aggregate, in prepared blast furnace residue channel stem bar castable
In play a part of skeletal support；Particle diameter is that the corundum furnace slag of 2～5mm is used as base-material, on the one hand plays skeletal support
Effect, on the other hand plays a part of inserts, enhances resistance to compression, intensity, resistant to elevated temperatures performance；Particle diameter is 0.045～2mm's
Corundum furnace slag is used as inserts, the gap between filler aggregate and base-material, makes whole castable filling closely knit, seamless；
Particle diameter is that the corundum furnace slag less than 0.045mm is used as bonding agent and inserts, on the one hand closely combines all raw materials
Get up, on the other hand use as inserts；Water reducer is used for the hardening speed of the blast furnace residue channel stem bar castable for improving prepared
Degree and intensity, prevent castable shrinkage cracking, water reducer to be preferably sodium tripolyphosphate or calgon；Aluminum oxide is conducive to
Castable high temperature resistant, corrosion resistance are lifted, to make castable performance average, aluminum oxide preferred size≤200 mesh, due to active oxygen
The reactivity for changing aluminium is higher, and more preferably, the aluminum oxide preferably adopts activated alumina to using effect；Heat-resistant steel fiber replaces carbon
SiClx, the intensity and resistant to elevated temperatures performance of not only reduces cost, and the blast furnace residue channel stem bar castable prepared by improving.
Blast furnace residue channel stem bar castable of the present invention is first above-mentioned various raw materials to be carried out in a ratio into dispensing, Ran Houzai
In mixer stir after and pack；Stirring is added water when using, amount of water accounts for the 9-10% of total mixing quality, stirring is mixed
Material be fitted in the mould of cinder spout, by vibrating head give castable apply vibration, Jing air-set be dried and the demoulding after
Obtain blast furnace residue channel stem bar castable.By replacing corundum as the master for preparing blast furnace residue channel stem bar castable using corundum furnace slag
Material is wanted, the corundum furnace slag of cost, different quality containing and different-grain diameter, prepared blast furnace residue channel stem bar is significantly reduced
Castable filling is closely knit, improves its performance (resistance to compression, intensity, high temperature resistant), improves using effect；Prepared blast furnace residue channel stem bar
Castable contains heat-resistant steel fiber, and the addition for not only making carborundum is substantially reduced, reduces cost (the cost ratio of heat-resistant steel fiber
The low cost of carborundum), and the intensity and resistant to elevated temperatures performance of the blast furnace residue channel stem bar castable prepared by improving, so as to
Its service life is improve, is drawn in practice, use time at least 35 days significantly improves blast furnace residue channel stem bar castable
Service life, also further reduces production cost.
Embodiment 1
Corundum furnace slag is chosen, the chemical composition of corundum furnace slag is Al by weight percentage2O3>=75%, MgO11～
14%th, CaO8～10%, Fe2O3≤ 1%.
Prepare raw material according to the match ratio of table one
Table one
Above-mentioned various raw materials are pressed into the match ratio dispensing of table one, then the agitating-bagging in mixer, when using, adds water and stir
Mix more than 5 minutes；The material that stirring is mixed is poured in the mould of cinder spout cast, applies to shake to castable by vibrating head
The dynamic purpose for reaching flowing forming；Castable demoulding Jing after air-set drying, natural drying 6 is little under the conditions of Jing scene temperatures
When come into operation.
Detection gained castable performance：110 DEG C of bulk densities are more than 2.6g/cm3, dry compressive resistances for 110 DEG C and be more than
22Mpa, compressive resistance is more than 55Mpa after being incubated 3 hours under the conditions of 1100 DEG C；110 DEG C drying rupture strengths be more than 5Mpa, 1100
Rupture strength is more than 10Mpa after being incubated 3 hours under the conditions of DEG C, meets the use requirement of the castable of blast furnace residue channel stem bar, and anti-
Pressure, intensity, resistant to elevated temperatures performance enhancement, use gained castable as ironmaking cinder spout castable, and service life is up to 37
My god.
Embodiment 2
Corundum furnace slag is chosen, the chemical composition of corundum furnace slag is Al by weight percentage2O3>=75%, MgO11～
14%th, CaO8～10%, Fe2O3≤ 1%.
Prepare raw material according to the match ratio of table two
Table two
Above-mentioned various raw materials are pressed into the match ratio dispensing of table two, then the agitating-bagging in mixer, when using, adds water and stir
Mix more than 5 minutes；The material that stirring is mixed is poured in the mould of cinder spout cast, applies to shake to castable by vibrating head
The dynamic purpose for reaching flowing forming；Castable demoulding Jing after air-set drying, natural drying 6 is little under the conditions of Jing scene temperatures
When come into operation.
Detection gained castable performance：110 DEG C of bulk densities are more than 2.8g/cm3, dry compressive resistances for 110 DEG C and be more than
27Mpa, compressive resistance is more than 65Mpa after being incubated 3 hours under the conditions of 1100 DEG C；110 DEG C drying rupture strengths be more than 6Mpa, 1100
Rupture strength is more than 12Mpa after being incubated 3 hours under the conditions of DEG C, meets the use requirement of the castable of blast furnace residue channel stem bar, resistance to compression,
Intensity, resistant to elevated temperatures performance enhancement, service life was up to 42 days.
Embodiment 3
Corundum furnace slag is chosen, the chemical composition of corundum furnace slag is Al by weight percentage2O3>=75%, MgO11～
14%th, CaO8～10%, Fe2O3≤ 1%.
Prepare raw material according to the match ratio of table three
Table three
Above-mentioned various raw materials are pressed into the match ratio dispensing of table three, then the agitating-bagging in mixer, when using, adds water and stir
Mix more than 5 minutes；The material that stirring is mixed is poured in the mould of cinder spout cast, applies to shake to castable by vibrating head
The dynamic purpose for reaching flowing forming；Castable demoulding Jing after air-set drying, natural drying 6 is little under the conditions of Jing scene temperatures
When come into operation.
Detection gained castable performance：110 DEG C of bulk densities are more than 2.7g/cm3, dry compressive resistances for 110 DEG C and be more than
25Mpa, compressive resistance is more than 60Mpa after being incubated 3 hours under the conditions of 1100 DEG C；110 DEG C drying rupture strengths be more than 7Mpa, 1100
Rupture strength is more than 11Mpa after being incubated 3 hours under the conditions of DEG C, the use requirement of the castable of blast furnace residue channel stem bar is met, by institute
Obtain castable to use as ironmaking cinder spout castable, service life was up to 39 days.
Embodiment 4
Corundum furnace slag is chosen, the chemical composition of corundum furnace slag is Al by weight percentage2O3>=75%, MgO11～
14%th, CaO8～10%, Fe2O3≤ 1%.
Prepare raw material according to the match ratio of table four
Table four
Above-mentioned various raw materials are pressed into the match ratio dispensing of table four, then the agitating-bagging in mixer, when using, adds water and stir
Mix more than 5 minutes；The material that stirring is mixed is poured in the mould of cinder spout cast, applies to shake to castable by vibrating head
The dynamic purpose for reaching flowing forming；Castable demoulding Jing after air-set drying, natural drying 6 is little under the conditions of Jing scene temperatures
When come into operation.
Detection gained castable performance：110 DEG C of bulk densities are more than 2.9g/cm3, dry compressive resistances for 110 DEG C and be more than
22Mpa, compressive resistance is more than 58Mpa after being incubated 3 hours under the conditions of 1100 DEG C；110 DEG C drying rupture strengths be more than 6Mpa, 1100
Rupture strength is more than 13Mpa after being incubated 3 hours under the conditions of DEG C, the use requirement of the castable of blast furnace residue channel stem bar is met, by institute
Obtain castable to use as ironmaking cinder spout castable, service life was up to 38 days.
Claims (4)
1. the castable of blast furnace residue channel stem bar is used for, it is characterised in that：In terms of parts by weight, it be to be mixed by following raw materials and
Into：Particle diameter is 31～33 parts of the corundum furnace slag of 5～10mm, and particle diameter is 45～55 parts of the corundum furnace slag of 2～5mm, and particle diameter is 0.045
15～28 parts of the corundum furnace slag of～2mm, particle diameter is 10～15 parts of the corundum furnace slag less than 0.045mm, and 4～6 parts of aluminum oxide is carbonized
2～4 parts of silicon, 4～5 parts of heat-resistant steel fiber, 0.05～0.15 part of water reducer, wherein, the chemical composition by weight hundred of corundum furnace slag
Ratio is divided to be calculated as Al2O3>=75%, MgO11～14%, CaO8～10%, Fe2O3≤ 1%.
2. the castable of blast furnace residue channel stem bar is used for as claimed in claim 1, it is characterised in that：The water reducer is trimerization phosphorus
Sour sodium or calgon.
3. the castable of blast furnace residue channel stem bar is used for as claimed in claim 1, it is characterised in that：The aluminum oxide is active oxygen
Change aluminium.
4. the castable of blast furnace residue channel stem bar is used for as claimed in claim 3, it is characterised in that：The alumina particle is less than
Or equal to 200 mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611176651.1A CN106588053A (en) | 2016-12-19 | 2016-12-19 | Castable for blast furnace slag spout |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611176651.1A CN106588053A (en) | 2016-12-19 | 2016-12-19 | Castable for blast furnace slag spout |
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| CN106588053A true CN106588053A (en) | 2017-04-26 |
Family
ID=58601562
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611176651.1A Pending CN106588053A (en) | 2016-12-19 | 2016-12-19 | Castable for blast furnace slag spout |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107892580A (en) * | 2017-12-08 | 2018-04-10 | 攀枝花钢城集团有限公司 | A kind of tundish slag wall castable and its application method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1683283A (en) * | 2004-04-15 | 2005-10-19 | 宜兴市泰科耐火材料有限公司 | Silicon carbide corundum pouring material |
| CN102515808A (en) * | 2011-12-30 | 2012-06-27 | 攀枝花钢城集团有限公司 | Recycling method of blast furnace tapping channel refractory material castable and corundum furnace slag |
| CN104355635A (en) * | 2014-10-30 | 2015-02-18 | 攀枝花钢城集团有限公司 | Casting material and preparation method and use thereof |
| CN104478448A (en) * | 2014-12-03 | 2015-04-01 | 武汉钢铁(集团)公司 | Blast furnace slag runner castable prepared from ferrotitanium slag |
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2016
- 2016-12-19 CN CN201611176651.1A patent/CN106588053A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1683283A (en) * | 2004-04-15 | 2005-10-19 | 宜兴市泰科耐火材料有限公司 | Silicon carbide corundum pouring material |
| CN102515808A (en) * | 2011-12-30 | 2012-06-27 | 攀枝花钢城集团有限公司 | Recycling method of blast furnace tapping channel refractory material castable and corundum furnace slag |
| CN104355635A (en) * | 2014-10-30 | 2015-02-18 | 攀枝花钢城集团有限公司 | Casting material and preparation method and use thereof |
| CN104478448A (en) * | 2014-12-03 | 2015-04-01 | 武汉钢铁(集团)公司 | Blast furnace slag runner castable prepared from ferrotitanium slag |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107892580A (en) * | 2017-12-08 | 2018-04-10 | 攀枝花钢城集团有限公司 | A kind of tundish slag wall castable and its application method |
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Application publication date: 20170426 |