CN109160808A - Arc furnace ventral triangle area prefabricated component dedicated pouring material - Google Patents
Arc furnace ventral triangle area prefabricated component dedicated pouring material Download PDFInfo
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- CN109160808A CN109160808A CN201811137923.6A CN201811137923A CN109160808A CN 109160808 A CN109160808 A CN 109160808A CN 201811137923 A CN201811137923 A CN 201811137923A CN 109160808 A CN109160808 A CN 109160808A
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- 239000000463 material Substances 0.000 title claims abstract description 26
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 47
- 239000000843 powder Substances 0.000 claims abstract description 47
- 239000000835 fiber Substances 0.000 claims abstract description 29
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000002994 raw material Substances 0.000 claims abstract description 19
- 239000011863 silicon-based powder Substances 0.000 claims abstract description 13
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000004568 cement Substances 0.000 claims abstract description 12
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 12
- 239000010935 stainless steel Substances 0.000 claims abstract description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000010432 diamond Substances 0.000 claims abstract description 11
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 11
- INJRKJPEYSAMPD-UHFFFAOYSA-N aluminum;silicic acid;hydrate Chemical compound O.[Al].[Al].O[Si](O)(O)O INJRKJPEYSAMPD-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000010443 kyanite Substances 0.000 claims abstract description 7
- 229910052850 kyanite Inorganic materials 0.000 claims abstract description 7
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910001570 bauxite Inorganic materials 0.000 claims abstract description 6
- 239000007767 bonding agent Substances 0.000 claims abstract description 6
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 6
- 239000011651 chromium Substances 0.000 claims abstract description 6
- 238000003723 Smelting Methods 0.000 claims abstract description 5
- 229910052751 metal Inorganic materials 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims abstract description 5
- 229910052593 corundum Inorganic materials 0.000 claims description 9
- 239000011236 particulate material Substances 0.000 claims description 8
- 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 8
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 235000019832 sodium triphosphate Nutrition 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 239000010431 corundum Substances 0.000 claims 1
- 239000010977 jade Substances 0.000 claims 1
- 238000005266 casting Methods 0.000 abstract description 8
- 239000002440 industrial waste Substances 0.000 abstract description 8
- 239000002245 particle Substances 0.000 abstract description 5
- 238000000465 moulding Methods 0.000 abstract description 3
- 150000001875 compounds Chemical class 0.000 abstract description 2
- 238000009826 distribution Methods 0.000 abstract description 2
- 238000001035 drying Methods 0.000 abstract description 2
- 229910052596 spinel Inorganic materials 0.000 abstract description 2
- 239000011029 spinel Substances 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract 1
- 238000003756 stirring Methods 0.000 description 8
- 238000010891 electric arc Methods 0.000 description 7
- 235000013312 flour Nutrition 0.000 description 6
- 238000002156 mixing Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 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 description 3
- HIMLGVIQSDVUJQ-UHFFFAOYSA-N aluminum vanadium Chemical compound [Al].[V] HIMLGVIQSDVUJQ-UHFFFAOYSA-N 0.000 description 3
- 235000013339 cereals Nutrition 0.000 description 3
- 239000003651 drinking water Substances 0.000 description 3
- 235000020188 drinking water Nutrition 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009845 electric arc furnace steelmaking Methods 0.000 description 3
- 238000005485 electric heating Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 229920000388 Polyphosphate Polymers 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000000280 densification Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000001205 polyphosphate Substances 0.000 description 2
- 235000011176 polyphosphates Nutrition 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 206010020843 Hyperthermia Diseases 0.000 description 1
- 229910001051 Magnalium Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 210000002219 extraembryonic membrane Anatomy 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005829 trimerization reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- 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
- C04B35/105—Refractories from grain sized mixtures containing chromium oxide or chrome ore
-
- 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
- C04B35/103—Refractories from grain sized mixtures containing non-oxide refractory materials, e.g. carbon
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- 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
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
- C04B2235/3222—Aluminates other than alumino-silicates, e.g. spinel (MgAl2O4)
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- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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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
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3418—Silicon oxide, silicic acids or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
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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
- C04B2235/52—Constituents or additives characterised by their shapes
- C04B2235/5208—Fibers
- C04B2235/5216—Inorganic
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- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
- C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient
- C04B2235/9615—Linear firing shrinkage
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- Organic Chemistry (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention discloses a kind of arc furnace ventral triangle area prefabricated component dedicated pouring materials, it is by 20 ~ 35 parts, 10 ~ 25 parts of plate diamond spar, 15 ~ 32 parts of pink fused alumina of the high-purity bauxite of raw material, 3 ~ 5 parts of spinelle fine powder, 1.5 ~ 2.5 parts of kyanite, 5 ~ 9 parts of Reactive alumina, 1 ~ 3 part of chrome oxide green fine powder, 2 ~ 4 parts of silicon powder, 3.11 ~ 5.25 parts of bonding agent, 0.03 ~ 0.06 part of organic fiber, 0.5 ~ 1 part of stainless steel fibre is formulated.The present invention uses the grain size distribution of science to body particles material, ensure that triangle zone prefab has good elevated temperature strength and heat shaken stability；High-intensitive low-temperature setting combination liner body can be formed after the materials such as Spinel micropowder, pure calcium aluminate cement, activated alumina and the chrome oxide green of compound addition, moulding by casting and drying, ensure that the compactness and volume stability of prefabricated component；Pink fused alumina (Al in raw material2O3+ Cr2O3It >=95%) is the clinker for smelting electrofusion metal chromium, the use of the raw material can reduce product cost and reduce the discharge of industrial waste, effectively realize recycling for industrial waste.
Description
Technical field
The present invention relates to electric arc furnaces refractory materials, more particularly, to a kind of arc furnace ventral triangle area prefabricated component Special pouring
Material feeding.
Background technique
Electric arc furnaces is one of important equipment used in smelting iron and steel.With the fast development of China's steel and iron industry, smelter
Skill is also being constantly brought forth new ideas, and electric arc furnaces is also to enlargement and ultra high powerization development, and the requirement to the resistance to material of electric arc furnaces is also increasingly
It is high.Arc furnace cover (also referred to as furnace roof) is a component of the utmost importance of electric arc furnaces, and service life height seriously affects the work of electric arc furnaces
Industry rate, and large effect is generated to steel quality and safety in production.The structure of arc furnace cover is as shown in Figure 1, which is provided with
Electrode hole and charging aperture, during its work, bell center (being commonly called as furnace roof trigonum) since structure bring is unfavorable, and
Hyperthermia radiation and slag corrosion and hot and cold alternation vulnerable to electric arc recycle, and cause central area to be very easy to damage, in turn
Cause entire bell overall structure unstable, damage is fast, reduces the service life of bell.Especially high-power and super high power
Electric-arc furnace steelmaking increasingly increases so that arc furnace cover service life reduction is larger, so tradition adopt it is pre- by High-Alumina, magnalium matter etc.
The bell trigonum that brickmaking is built into is no longer satisfied the requirement of electric-arc furnace steelmaking.
Summary of the invention
It is an object of the invention to for the short bad phenomenon of existing bell service life, provide a kind of consistency and intensity
Height, good thermal shock stability, slag-resistant erosion performance is good, arc furnace ventral triangle with long service life area prefabricated component dedicated pouring
Material.
To achieve the above object, the present invention can take following technical proposals:
Arc furnace ventral triangle of the present invention area prefabricated component dedicated pouring material, be by the high-purity bauxite of raw material, plate diamond spar,
Pink fused alumina, spinelle fine powder, kyanite, Reactive alumina, chrome oxide green fine powder, silicon powder and bonding agent, organic fiber,
Stainless steel fibre is formulated；Wherein
20 ~ 35 parts of high-purity bauxite, 10 ~ 25 parts of plate diamond spar, 15 ~ 32 parts of pink fused alumina, 3 ~ 5 parts of spinelle fine powder, kyanite 1.5
~ 2.5 parts, 5 ~ 9 parts of Reactive alumina, 1 ~ 3 part of chrome oxide green fine powder, 2 ~ 4 parts of silicon powder, 3.11 ~ 5.25 parts of bonding agent, have
0.03 ~ 0.06 part of machine fiber, 0.5 ~ 1 part of stainless steel fibre.
The granularity of the rafifinal vanadine is 3 ~ 15mm；The granularity of plate diamond spar is 0.1 ~ 5mm；In the pink fused alumina, grain
Spend the pink fused alumina particulate material 10 ~ 20 of 0.1 ~ 3mm, 5 ~ 12 parts of the pink fused alumina powder of 180 ~ 220 mesh of granularity.
The bonding agent by 3 ~ 5 parts of pure calcium aluminate cement, 0.06 ~ 0.15 part of sodium tripolyphosphate, calgon 0.05 ~
0.1 part is formulated, wherein Al in pure calcium aluminate cement2O3≥69wt%。
To reduce cost, effective use industrial waste, the clinker for smelting electrofusion metal chromium is can be used in the pink fused alumina, wherein
Al2O3>=85wt%, Cr2O3≥10%。
To guarantee that the quality of finished product prefabricated component meets requirement, in the raw materials used in the present invention, in high-purity bauxite
Al2O3Content is 88 ~ 90wt%；Al in plate diamond spar2O3≥99wt%；The spinelle fine powder is 325 mesh, wherein Al2O3≥
70wt%, MgO >=27wt%；The chrome oxide green fine powder is 325 mesh, wherein Cr2O3≥99wt%；The granularity of the kyanite fine powder
For 80 mesh, wherein Al2O3≥55wt%；SiO in the silicon powder2≥95wt%。
304# stainless steel heat-resistant steel fibre can be used in the stainless steel fibre, and the organic fiber is that water-soluble low melting point has
Machine fiber, JT-60 type water-soluble 60 DEG C of -70 DEG C of explosion-proof fibers, the Taian Shandongs produced such as Liaoyang Jin Tai chemical fibre Co., Ltd
Water-soluble 80 DEG C of -90 DEG C of explosion-proof fibers of the JT-80 type of Ling Zhong composite material Co., Ltd production etc..
After above-mentioned each raw material are weighed by component, fine powder component is uniformly mixed spare；Strength is added in grain fraction
Blender stirs 2 ~ 3min, adds mixing fine powders and stirs 5 ~ 6min, adds water 4 ~ 5% by raw material gross weight, continues after mixing evenly,
It is cast into fetal membrane and is formed, vibrated in casting, casting process must be carried out continuously, to guarantee the densification of pour mass
Property and globality.It spontaneously dries 24 hours and demoulds after casting complete, then 24 ~ 48h of natural curing, pour mass is finally packed into electricity and is added
20 DEG C ~ 350 DEG C baking 96h of hot baking room, obtain the pre- triangle zone prefab of arc furnace.
The pre- triangle zone prefab periphery faying face inclined surface with a narrow upper and lower width of molding furnace is prepared, it is directly embedded
(edge of reserved location is in matched inclined surface) combines it naturally at furnace roof reserved location.
After tested, the technical indicator of the arc furnace ventral triangle area prefabricated component formed by a firing is as shown in table 1 below
The advantage of the invention is that using the grain size distribution of science to body particles material, it ensure that triangle zone prefab has very
Good elevated temperature strength and heat shaken stability；Spinel micropowder, pure calcium aluminate cement, activated alumina and the chromium oxide of compound addition
Green equal materials, can form high-intensitive low-temperature setting combination liner body after moulding by casting and drying, ensure that the densification of prefabricated component
Property and volume stability；Pink fused alumina (Al in raw material2O3+ Cr2O3 It >=95%) is the clinker for smelting electrofusion metal chromium, the raw material
Use can reduce product cost and reduce the discharge of industrial waste, effectively realize that industrial waste recycles.Its advantage
It is embodied in following several points:
1, prefabricated component good integrity of the present invention, easy for installation, service life can achieve 300 ~ 1000 times, instead of traditional electric furnace
The brickwork construction that ventral triangle area service life is 80 ~ 200 times avoids the defect that construction is slow, brickwork joint is more, globality is bad；
2, for the heated baking temperature that castable of the present invention uses for 150 DEG C ~ 350 DEG C, energy-saving effect is significant；And traditional electric furnace top
Brick needs 1450 DEG C ~ 1600 DEG C high temperature firings, and energy consumption is high；
3, present invention science uses pink fused alumina (Al2O3+ Cr2O3 It >=95%) is raw material, and pink fused alumina is to smelt electrofusion metal
The use of the clinker of chromium, the raw material can reduce product cost and reduce the discharge of industrial waste, effectively realize industrial waste
It recycles；
4, the present invention is the entirety of one-time cast-forming, and convenient field replacement operation can effectively improve electric furnace steel making operation effect
Rate reduces labor intensity；
5, long service life of the present invention can be such that raw material resources make full use of, and effectively reduce the discharge of industrial waste, product
Using safe and environment-friendly.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of arc furnace cover.
Specific embodiment
More detailed explanation is done to the present invention below by specific embodiment, in order to the reason of those skilled in the art
Solution.
Embodiment 1 fires 30 tons of arc furnace cover triangle zone prefabs (portion A in Fig. 1)
Its parts by weight of raw materials proportion are as follows:
35 parts of the high-purity aluminum-vanadium soil particle material of 3 ~ 15mm of granularity, 15 parts of the plate diamond spar particulate material of 0.1 ~ 5mm of granularity, granularity
20 parts of the pink fused alumina particulate material of 0.1 ~ 3mm, 180 ~ 220 11 parts of mesh pink fused alumina powders, 3 parts of spinelle fine powder, chrome oxide green fine powder 1
Part, 80 1.5 parts of mesh aquamaine mountain flours, 2 μm 5 parts of activated alumina powder, 0.7 μm 3.5 parts of silicon powder, 5 parts of pure calcium aluminate cement, three
0.15 part of polyphosphate sodium, 0.05 part of calgon, 1 part of 304# stainless steel fibre, 0.06 part of JT-80 organic fiber.
It fires: by above-mentioned raw material according to parts by weight precise, first by pink fused alumina powder, spinelle fine powder, chrome oxide green
Fine powder, aquamaine mountain flour, activated alumina powder, silicon powder, pure calcium aluminate cement, sodium tripolyphosphate, calgon and organic
Fiber is sufficiently mixed spare.Then surplus stock is entered to mix in machine,massing 2min, then pour into the fine powder material mixed and stir
Mix 5min, the drinking water that material gross weight 4.6% is added after mixing continues to stir, it is to be mixed uniformly after pour into mold, side vibration
Side batch turning, until surface is smooth, casting is can be completed in no pitted skin.Then natural curing demoulds afterwards for 24 hours, spontaneously dries after demoulding
For 24 hours, it enters back into electric heating baking room to be toasted, is set as 20 DEG C ~ 350 DEG C according to heating curve baking temperature, toasts 96h,
Obtain the pre- triangle zone prefab finished product of arc furnace.
After measured, the technical parameter of finished product prefabricated component is as follows:
Embodiment 2 fires 60 tons of arc furnace cover triangle zone prefabs
Its parts by weight of raw materials proportion are as follows:
30 parts of the high-purity aluminum-vanadium soil particle material of 3 ~ 15mm of granularity, 20 parts of the plate diamond spar particulate material of 0.1 ~ 5mm of granularity, granularity
20 parts of the pink fused alumina particulate material of 0.1 ~ 3mm, 180 ~ 220 8 parts of mesh pink fused alumina powders, 4 parts of spinelle fine powder, chrome oxide green fine powder 2
Part, 80 2 parts of mesh aquamaine mountain flours, 2 μm 7 parts of activated alumina powder, 0.7 μm 3 parts of silicon powder, 4 parts of pure calcium aluminate cement, trimerization phosphorus
0.15 part of sour sodium, 0.05 part of calgon, 1 part of 304# stainless steel fibre, 0.06 part of JT-80 organic fiber.
It fires: by above-mentioned raw material according to parts by weight precise, first by pink fused alumina powder, spinelle fine powder, chrome oxide green
Fine powder, aquamaine mountain flour, activated alumina powder, silicon powder, pure calcium aluminate cement, sodium tripolyphosphate, calgon and organic
Fiber is sufficiently mixed spare.Then surplus stock is entered to mix in machine,massing 2min, then pour into the fine powder material mixed and stir
Mix 5min, the drinking water that material gross weight 4.2% is added after mixing continues to stir, it is to be mixed uniformly after pour into mold, side vibration
Side batch turning, until surface is smooth, casting is can be completed in no pitted skin.Then natural curing demoulds afterwards for 24 hours, spontaneously dries after demoulding
36h enters back into electric heating baking room and is toasted, and is set as 20 DEG C ~ 350 DEG C according to heating curve baking temperature, toasts 96h,
Obtain the pre- triangle zone prefab finished product of arc furnace.
After measured, the technical parameter of finished product prefabricated component is as follows:
Embodiment 3 fires 100 tons of arc furnace cover triangle zone prefabs
Its parts by weight of raw materials proportion are as follows:
20 parts of the high-purity aluminum-vanadium soil particle material of 3 ~ 15mm of granularity, 25 parts of the plate diamond spar particulate material of 0.1 ~ 5mm of granularity, granularity
25 parts of the pink fused alumina particulate material of 0.1 ~ 3mm, 180 ~ 220 5.5 parts of mesh pink fused alumina powders, 5 parts of spinelle fine powder, chrome oxide green fine powder
3 parts, 80 2.5 parts of mesh aquamaine mountain flours, 2 μm 9 parts of activated alumina powder, 0.7 μm 2 parts of silicon powder, 3 parts of pure calcium aluminate cement, three
0.15 part of polyphosphate sodium, 0.05 part of calgon, 1 part of 304# stainless steel fibre, 0.06 part of JT-80 organic fiber.
It fires: by above-mentioned raw material according to parts by weight precise, first by pink fused alumina powder, spinelle fine powder, chrome oxide green
Fine powder, aquamaine mountain flour, activated alumina powder, silicon powder, pure calcium aluminate cement, sodium tripolyphosphate, calgon and organic
Fiber is sufficiently mixed spare.Then surplus stock is entered to mix in machine,massing 2min, then pour into the fine powder material mixed and stir
Mix 5min, the drinking water that material gross weight 4.4% is added after mixing continues to stir, it is to be mixed uniformly after pour into mold, side vibration
Side batch turning, until surface is smooth, casting is can be completed in no pitted skin.Then natural curing demoulds afterwards for 24 hours, spontaneously dries after demoulding
48h enters back into electric heating baking room and is toasted, and is set as 20 DEG C ~ 350 DEG C according to heating curve baking temperature, toasts 96h,
Obtain the pre- triangle zone prefab finished product of arc furnace.
After measured, the technical parameter of finished product prefabricated component is as follows:
Test proves that prefabricated component good integrity of the present invention, easy for installation, service life can achieve 300 ~ 1000 times, can be complete
Meet the requirement of electric-arc furnace steelmaking.
Claims (6)
1. a kind of arc furnace ventral triangle area prefabricated component dedicated pouring material, it is characterised in that: be by the high-purity bauxite of raw material, plate
It is corundum, pink fused alumina, spinelle fine powder, kyanite, Reactive alumina, chrome oxide green fine powder, silicon powder and bonding agent, organic
Fiber, stainless steel fibre are formulated；Wherein
20 ~ 35 parts of high-purity bauxite, 10 ~ 25 parts of plate diamond spar, 15 ~ 32 parts of pink fused alumina, 3 ~ 5 parts of spinelle fine powder, kyanite 1.5
~ 2.5 parts, 5 ~ 9 parts of Reactive alumina, 1 ~ 3 part of chrome oxide green fine powder, 2 ~ 4 parts of silicon powder, 3.11 ~ 5.25 parts of bonding agent, have
0.03 ~ 0.06 part of machine fiber, 0.5 ~ 1 part of stainless steel fibre.
2. arc furnace ventral triangle according to claim 1 area prefabricated component dedicated pouring material, it is characterised in that: described high-purity
The granularity of aluminium vanadine is 3 ~ 15mm；The granularity of plate diamond spar is 0.1 ~ 5mm；In the pink fused alumina, the pink fused alumina of 0.1 ~ 3mm of granularity
10 ~ 20 parts of particulate material, 5 ~ 12 parts of the pink fused alumina powder of 180 ~ 220 mesh of granularity.
3. arc furnace ventral triangle according to claim 1 area prefabricated component dedicated pouring material, it is characterised in that: the combination
By 3 ~ 5 parts of pure calcium aluminate cement, 0.06 ~ 0.15 part of sodium tripolyphosphate, 0.05 ~ 0.1 part of calgon is formulated for agent, wherein
Al in pure calcium aluminate cement2O3≥69wt%。
4. arc furnace ventral triangle according to claim 1 area prefabricated component dedicated pouring material, it is characterised in that: the chromium is rigid
Jade is the clinker for smelting electrofusion metal chromium, wherein Al2O3>=85wt%, Cr2O3 ≥10%。
5. arc furnace ventral triangle according to claim 1 area prefabricated component dedicated pouring material, it is characterised in that: described high-purity
Al in bauxite2O3Content is 88 ~ 90wt%；Al in plate diamond spar2O3≥99wt%；The spinelle fine powder is 325 mesh, wherein
Al2O3>=70wt%, MgO >=27wt%；The chrome oxide green fine powder is 325 mesh, wherein Cr2O3≥99wt%；The kyanite is thin
The granularity of powder is 80 mesh, wherein Al2O3≥55wt%；SiO in the silicon powder2≥95wt%。
6. arc furnace ventral triangle according to claim 1 area prefabricated component dedicated pouring material, it is characterised in that: described stainless
Steel fibre is 304# stainless steel heat-resistant steel fibre, and the organic fiber is water-soluble low melting point organic fiber.
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| CN201811137923.6A CN109160808A (en) | 2018-09-28 | 2018-09-28 | Arc furnace ventral triangle area prefabricated component dedicated pouring material |
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| CN201811137923.6A CN109160808A (en) | 2018-09-28 | 2018-09-28 | Arc furnace ventral triangle area prefabricated component dedicated pouring material |
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| RU210483U1 (en) * | 2021-10-26 | 2022-04-18 | Общество с ограниченной ответственностью "Кералит" | THE CENTRAL PART OF THE COVER OF THE ARC STEEL-MELTING FURNACE |
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| CN111848187A (en) * | 2020-07-08 | 2020-10-30 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Method for preparing iron ladle castable by using high-carbon ferrochrome slag |
| RU210483U1 (en) * | 2021-10-26 | 2022-04-18 | Общество с ограниченной ответственностью "Кералит" | THE CENTRAL PART OF THE COVER OF THE ARC STEEL-MELTING FURNACE |
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Application publication date: 20190108 |