CN107805059A - A kind of Ladle Bottom brick cup and preparation method thereof - Google Patents

A kind of Ladle Bottom brick cup and preparation method thereof Download PDF

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Publication number
CN107805059A
CN107805059A CN201711054855.2A CN201711054855A CN107805059A CN 107805059 A CN107805059 A CN 107805059A CN 201711054855 A CN201711054855 A CN 201711054855A CN 107805059 A CN107805059 A CN 107805059A
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Prior art keywords
ladle
particle
brick cup
weight
fine powder
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CN201711054855.2A
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CN107805059B (en
Inventor
崔任渠
彭学峰
樊明宇
郁书中
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Ruitai Magang new Mstar Technology Ltd
Magang Group Holding Co Ltd
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ANHUI MA STEEL REFRACTORY Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/10Shaped 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
    • C04B35/101Refractories from grain sized mixtures
    • C04B35/105Refractories from grain sized mixtures containing chromium oxide or chrome ore
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3206Magnesium oxides or oxide-forming salts thereof
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3217Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
    • C04B2235/3222Aluminates other than alumino-silicates, e.g. spinel (MgAl2O4)
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/34Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3418Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/74Physical characteristics
    • C04B2235/77Density
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance

Abstract

The invention discloses a kind of Ladle Bottom brick cup and preparation method thereof, the Ladle Bottom brick cup is prepared by compound and additional metallic aluminium powder and water reducer, and the compound includes the raw material of following percentage by weight:Plate diamond spar particle 13 22%;Alumina particle 10 20%;Pink fused alumina particle 10 30%;Spinel particle 5 20%;Magnesia particle 3 10%;Corundum fine powder 10 20%;Alpha-aluminium oxide micro mist 5 10%;Silicon powder 2 6%.Ladle Bottom brick cup disclosed by the invention is applied to bottom of steel ladle position, collector nozzle and slide plate in connection, the ladle bottom life-span can be effectively improved using the product, simultaneously because contain pink fused alumina waste material in the product, waste material is set to be fully used, and can reaches technical requirement simultaneously, has significantly Social benefit and economic benefit.Production cost per ton can save 250 300 yuan more originally.

Description

A kind of Ladle Bottom brick cup and preparation method thereof
Technical field
The invention belongs to refractory material indefinite form product scope, and in particular to a kind of Ladle Bottom brick cup and preparation method thereof.
Background technology
At present, Ladle Bottom brick cup mainly uses corundum spinel or corundum, due to containing in corundum spinelle brick cup The stable performance material such as more plate diamond spar or white fused alumina, spinelle so that corundum spinel brick cup performance is highly stable, but It is that its manufacturing cost is also improving as the price of corundum class raw material rises steadily.How Ladle Bottom brick cup is being ensured While can be stable, manufacturing cost be saved, is the common problem that current steel production industry faces.
The content of the invention
To solve the above problems, the invention provides a kind of bottom of steel ladle brick and preparation method thereof, add in the feed Pink fused alumina particle, pink fused alumina are mainly electric smelting pink fused alumina, are a kind of caused by smelting outside stove prepares crome metal or evanohm Discarded object, the technical indicator using the Ladle Bottom brick cup of pink fused alumina production is suitable with current corundum cementitious matter, can meet that steel mill makes With requiring, and substantially reduce production cost.
The technical scheme that the present invention takes is:
A kind of Ladle Bottom brick cup, the Ladle Bottom brick cup are prepared into by compound and additional metallic aluminium powder and water reducer Arrive, the compound includes the raw material of following percentage by weight:
Further, the compound preferably comprises the raw material of following percentage by weight:
The weight of the metallic aluminium powder is the 0.1-1% of the compound weight.
The weight of the water reducer is the 0.1-1% of the compound weight.
The water reducer includes one kind in ADS types high efficiency water reducing agent, ADW types high efficiency water reducing agent or FS10 high efficiency water reducing agents It is or a variety of.
The corundum fine powder is white fused alumina fine powder, Al in its component2O3Content >=98.5%, the white fused alumina fine powder PH value is in neutrality.
The spinel particle is magnesium aluminate spinel particle, content of MgO >=34%, MgO+Al in its component2O3-Content >= 90%.
Al in the component of the alumina particle2O3>=88%;Content of MgO >=97% in the component of the fused magnesite particle, SiO in the component of the silicon powder2Content >=90%.
Alumina content is more than 94% in the component of the pink fused alumina particle, and chromic oxide content is less than 3%.
Present invention also offers the preparation method of the Ladle Bottom brick cup, the preparation method comprises the following steps:
(1) by the corundum fine powder of formula ratio, Alpha-alumina micro mist, silicon powder, metallic aluminium powder, water reducer premix 25~ 30min, obtain premixing fine powder;
(2) added into kneading machine the plate diamond spar particle of formula ratio, alumina particle, pink fused alumina particle, spinel particle, Magnesia particle, mixed grind add the premix fine powder that step (1) obtains after 1~2 minute, continue to be kneaded 2-3min, add water to pug table Untill the bleeding of face, total kneading time is 8-12min;
(3) vibrating forming, the demoulding, baking are poured into a mould;
(4) examine, pack.
Further, the temperature of the baking is 350~400 DEG C, time 36-48h.
In the formula of Ladle Bottom brick cup provided by the invention, alumina particle and plate diamond spar particle provide skeletal support and made With the performances such as product strength, anti-erosion can be improved, spinel particle is smaller to be played filling and make up, and can improve it at high temperature Anti- molten steel corrosion function, micro mist and water reducer can improve product high temperature sintering performance.Pink fused alumina particle is as aluminum oxide and oxidation The solid solution of chromium, effectively particle in component can be connected with fine powder, greatly improve product strength.In formula, each raw material is not Meet theory of close packing with the other setting of grain-size grade, beneficial to the intensity for improving product.High efficiency water reducing agent be different from common trimerization, Six bias tyre water reducers, the water reducer can substantially reduce amount of water, eliminate because the stomata left after moisture evaporation is made to properties of product Into harmful effect, and the high efficiency water reducing agent can be obviously improved the normal temperature strength index of product.
Ladle Bottom brick cup disclosed by the invention is applied to bottom of steel ladle position, collector nozzle and slide plate in connection, uses the system Product can effectively improve the ladle bottom life-span, simultaneously because containing pink fused alumina (aluminium chromium slag) waste material in the product, be filled waste material Divide and utilize, while and can reaches technical requirement, the resistance to pressure of the Ladle Bottom brick cup obtained using method disclosed by the invention Degree >=60Mpa, body be close >=3g/cm3, rupture strength >=8Mpa, refractoriness under load >=1500 DEG C;With significantly social benefit And economic benefit.Production cost per ton can save 250-300 members more originally.
Embodiment
Embodiment 1
A kind of Ladle Bottom brick cup, it is prepared by compound and additional metallic aluminium powder and ADS type high efficiency water reducing agents, it is described Compound includes the raw material of percentage by weight as shown in table 1, and metallic aluminium powder, the weight of ADS type high efficiency water reducing agents are respectively to mix Expect the 0.5% and 1.0% of weight, the particle diameter of the metallic aluminium powder is 325 mesh.
The preparation method of the Ladle Bottom brick cup is:
(1) corundum fine powder, Alpha-alumina micro mist, silicon powder, metallic aluminium powder, water reducer are premixed into 25~30min, obtained Premix fine powder;
(2) added into kneading machine the plate diamond spar particle of formula ratio, alumina particle, pink fused alumina particle, spinel particle, Magnesia particle, mixed grind add the premix fine powder that step (1) obtains after 1~2 minute, continue to be kneaded 2-3min, add water to pug table Untill the bleeding of face, total kneading time is 8-12min;
(3) vibrating forming, the demoulding, 350~400 DEG C of baking 36-48h are poured into a mould;
(4) examine, pack.
Table 1
Embodiment 2
A kind of Ladle Bottom brick cup, it is prepared by compound and additional metallic aluminium powder and ADW type high efficiency water reducing agents, it is described Compound includes the raw material of percentage by weight as shown in table 1, and metallic aluminium powder, the weight of water reducer are respectively compound weight 0.7% and 0.8%, the particle diameter of the metallic aluminium powder is 325 mesh.
The preparation method of the Ladle Bottom brick cup is:
(1) by corundum fine powder, Alpha-alumina micro mist, silicon powder, metallic aluminium powder, ADW types high efficiency water reducing agent premix 25~ 30min, obtain premixing fine powder;
(2) added into kneading machine the plate diamond spar particle of formula ratio, alumina particle, pink fused alumina particle, spinel particle, Magnesia particle, mixed grind add the premix fine powder that step (1) obtains after 1~2 minute, continue to be kneaded 2-3min, add water to pug table Untill the bleeding of face, total kneading time is 8-12min;
(3) vibrating forming, the demoulding, 350~400 DEG C of baking 36-48h are poured into a mould;
(4) examine, pack.
Table 2
Comparative example 1
ADS types high efficiency water reducing agent therein is simply replaced with melamine water reducing agent by other with embodiment 1.
Comparative example 2
The particle diameter of all particulate materials is simply all replaced with 5-3mm by other with embodiment 1.
Comparative example 3
Other simply replace with pink fused alumina particle therein 15% plate diamond spar particle and 10% with embodiment 1 Fused magnesite particle.
The performance test results for the Ladle Bottom brick cup that various embodiments above and comparative example obtain are as shown in table 3.
The performance test results for the Ladle Bottom brick cup that 3 each embodiment of table and comparative example obtain
The above-mentioned detailed description carried out to a kind of Ladle Bottom brick cup and preparation method thereof with reference to embodiment, be it is illustrative and It is not limited, several embodiments can be included according to limited scope, therefore in the case where not departing from present general inventive concept Change and modifications, should belong within protection scope of the present invention.

Claims (9)

1. a kind of Ladle Bottom brick cup, it is characterised in that the Ladle Bottom brick cup is by compound and additional metallic aluminium powder and diminishing Agent is prepared, and the compound includes the raw material of following percentage by weight:
2. Ladle Bottom brick cup according to claim 1, it is characterised in that the compound includes following percentage by weight Raw material:
3. Ladle Bottom brick cup according to claim 1 or 2, it is characterised in that the weight of the metallic aluminium powder is described mixed Close the 0.1-1% of material weight.
4. Ladle Bottom brick cup according to claim 1 or 2, it is characterised in that the weight of the water reducer is the mixing Expect the 0.1-1% of weight.
5. Ladle Bottom brick cup according to claim 1 or 2, it is characterised in that the water reducer includes the efficient diminishing of ADS types One or more in agent, ADW types high efficiency water reducing agent or FS10 high efficiency water reducing agents.
6. Ladle Bottom brick cup according to claim 1 or 2, it is characterised in that the corundum fine powder is white fused alumina fine powder, Al in its component2O3Content >=98.5%, the pH value of the white fused alumina fine powder is in neutrality.
7. Ladle Bottom brick cup according to claim 1 or 2, it is characterised in that the spinel particle is magnesium aluminate spinel Particle, content of MgO >=34%, MgO+Al in its component2O3Content >=90%.
8. the preparation method of Ladle Bottom brick cup according to claim 1 or 2, it is characterised in that the preparation method includes Following steps:
(1) the corundum fine powder of formula ratio, Alpha-alumina micro mist, silicon powder, metallic aluminium powder, water reducer are premixed into 25~30min, Obtain premixing fine powder;
(2) plate diamond spar particle, alumina particle, pink fused alumina particle, spinel particle, the magnesia of formula ratio are added into kneading machine Particle, mixed grind add the premix fine powder that step (1) obtains after 1~2 minute, continue to be kneaded 2-3min, it is general to add water to pug surface Untill slurry, total kneading time is 8-12min;
(3) vibrating forming, the demoulding, baking are poured into a mould;
(4) examine, pack.
9. preparation method according to claim 8, it is characterised in that the temperature of the baking is 350~400 DEG C, the time 36-48h。
CN201711054855.2A 2017-11-01 2017-11-01 Ladle base brick and preparation method thereof Active CN107805059B (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109180165A (en) * 2018-08-26 2019-01-11 洛阳科创新材料股份有限公司 A kind of preparation method of sliding plate brick
CN109987952A (en) * 2019-04-25 2019-07-09 郑州振东科技有限公司 Spinel ladle heat insulation lining brick
CN110272268A (en) * 2018-03-17 2019-09-24 鞍山盛晨耐火材料有限公司 A kind of preparation method of ladle corundum lining brick
CN110776312A (en) * 2019-09-30 2020-02-11 山东耀华特耐科技有限公司 Cement-free castable
CN110981513A (en) * 2019-12-30 2020-04-10 马鞍山利尔开元新材料有限公司 Chrome corundum slag-high bauxite composite carbon-free ladle down nozzle brick and preparation method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04119962A (en) * 1990-09-06 1992-04-21 Harima Ceramic Co Ltd Magnesia-carbon refractories
CN102173826A (en) * 2010-12-30 2011-09-07 中南大学 Corundum breathable seat brick with high thermal shock resistance and production method thereof
CN105272311A (en) * 2015-11-11 2016-01-27 浙江长兴宝晟炉料有限公司 Low-cost durable main ditch material
CN106631050A (en) * 2015-11-05 2017-05-10 洛阳轩石高温材料有限公司 Cleaning-free air brick with uniform structure and manufacturing method thereof
CN106631068A (en) * 2016-12-27 2017-05-10 通达耐火技术股份有限公司 Bauxite-based homogenous corundum environment-friendly steel ladle base brick and preparation method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04119962A (en) * 1990-09-06 1992-04-21 Harima Ceramic Co Ltd Magnesia-carbon refractories
CN102173826A (en) * 2010-12-30 2011-09-07 中南大学 Corundum breathable seat brick with high thermal shock resistance and production method thereof
CN106631050A (en) * 2015-11-05 2017-05-10 洛阳轩石高温材料有限公司 Cleaning-free air brick with uniform structure and manufacturing method thereof
CN105272311A (en) * 2015-11-11 2016-01-27 浙江长兴宝晟炉料有限公司 Low-cost durable main ditch material
CN106631068A (en) * 2016-12-27 2017-05-10 通达耐火技术股份有限公司 Bauxite-based homogenous corundum environment-friendly steel ladle base brick and preparation method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110272268A (en) * 2018-03-17 2019-09-24 鞍山盛晨耐火材料有限公司 A kind of preparation method of ladle corundum lining brick
CN109180165A (en) * 2018-08-26 2019-01-11 洛阳科创新材料股份有限公司 A kind of preparation method of sliding plate brick
CN109987952A (en) * 2019-04-25 2019-07-09 郑州振东科技有限公司 Spinel ladle heat insulation lining brick
CN110776312A (en) * 2019-09-30 2020-02-11 山东耀华特耐科技有限公司 Cement-free castable
CN110981513A (en) * 2019-12-30 2020-04-10 马鞍山利尔开元新材料有限公司 Chrome corundum slag-high bauxite composite carbon-free ladle down nozzle brick and preparation method thereof

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