CN108546134A - A kind of no carbon brick and preparation method thereof - Google Patents

A kind of no carbon brick and preparation method thereof Download PDF

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Publication number
CN108546134A
CN108546134A CN201810264060.2A CN201810264060A CN108546134A CN 108546134 A CN108546134 A CN 108546134A CN 201810264060 A CN201810264060 A CN 201810264060A CN 108546134 A CN108546134 A CN 108546134A
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China
Prior art keywords
parts
particle
carbon brick
fused magnesite
bonding agent
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Pending
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CN201810264060.2A
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Chinese (zh)
Inventor
曹丽云
龚育才
张雪松
俞晓东
茹红强
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JIANGSU SUJIA GROUP NEW MATERIAL CO Ltd
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JIANGSU SUJIA GROUP NEW MATERIAL CO Ltd
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Priority to CN201810264060.2A priority Critical patent/CN108546134A/en
Publication of CN108546134A publication Critical patent/CN108546134A/en
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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
    • C04B35/66—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
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/6303—Inorganic additives
    • 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
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/632—Organic additives
    • 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
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/632—Organic additives
    • C04B35/636—Polysaccharides or derivatives thereof
    • C04B35/6365—Cellulose or derivatives 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
    • C04B2235/3206—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
    • C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
    • C04B2235/3227—Lanthanum oxide 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
    • C04B2235/38—Non-oxide ceramic constituents or additives
    • C04B2235/3891—Silicides, e.g. molybdenum disilicide, iron silicide

Abstract

The present invention relates to a kind of no carbon bricks and preparation method thereof, and each component is calculated by weight as：1~5 part of 60~80 parts of fused magnesite particle, 10~20 parts of fused magnesite fine powder, 5~20 parts of alumina particle, 1~2 part of hydroxypropyl methyl cellulose, 1~5 part of molybdenum disilicide and bonding agent.Preparation method of the present invention is simple, step is easily operated, alumina particle is used to reduce manufacturing cost for the raw material of no carbon brick, hydroxymethyl cellulose and bonding agent cooperation can improve the bond strength of no carbon brick at normal temperatures, and the addition of molybdenum disilicide increases the inoxidizability and corrosion resistance of brick body.

Description

A kind of no carbon brick and preparation method thereof
Technical field
The present invention relates to a kind of no carbon bricks and preparation method thereof, belong to technical field of fire-resistant material preparation.
Background technology
Magnesia carbon brick and aluminium-magnesia carbon brick are one of currently used refractory materials, due to containing in magnesia carbon brick and aluminium-magnesia carbon brick Carbon can preferably improve the slag penetration resistance of refractory brick, and resistance to corrosion is improved, and the longevity is used to raising steel ladle working layer Life is advantageous, but the thermal coefficient of carbon is big, causes the thermal coefficient of magnesia carbon brick and alumina-magnesia brick big, and the heat loss of ladle increases, unfavorable In subsequent smelting process, the working lining using magnesia carbon brick or aluminium-magnesia carbon brick as ladle, carbon can be diffused into molten steel, influence steel With the oxidation of carbon, brick body will appear loose solution for the quality of water, and with the increase of use time, magnesia carbon brick or aluminium-magnesia carbon brick Body.Therefore, using performance no carbon brick similar with magnesia carbon brick or aluminium-magnesia carbon brick come instead of that can solve, carbon content is excessively high to be brought Influence.
Invention content
The purpose of the present invention is overcoming the deficiencies in the prior art, a kind of no carbon brick and preparation method thereof is provided.
The present invention adopts the following technical scheme that：A kind of no carbon brick, each component are calculated by weight as：Fused magnesite particle 60 ~80 parts, 10~20 parts of fused magnesite fine powder, 5~20 parts of alumina particle, 1~2 part of hydroxypropyl methyl cellulose, molybdenum disilicide 1 ~5 parts and 1~5 part of bonding agent.
Further, the grain size of the fused magnesite particle is 1~5mm.
Further, the granularity of the fused magnesite fine powder is 300~350 mesh.
Further, the grain size of the alumina particle is 3~5mm.
Further, the bonding agent is calcium lignosulfonate or calcium aluminate.
Preparation method without carbon brick, includes the following steps：
（1）It is kneaded：It weighs respectively in parts by weight：60~80 parts of fused magnesite particle, 10~20 parts of fused magnesite fine powder, alumina 1~5 part of 5~20 parts of particle, 1~2 part of hydroxypropyl methyl cellulose, 1~5 part of molybdenum disilicide and bonding agent, first by electric-melting magnesium Sand particle and alumina particle, which are added into kneading machine, is kneaded 5~20min, and bonding agent is then added and continues 5~10min of mixing, connects It and sequentially adds 10~20min of molybdenum disilicide and hydroxypropyl methyl cellulose, be eventually adding fused magnesite fine powder and continue mixing 10 ~20min forms pug；
（2）Compression moulding：Pug is added compression moulding on hydraulic press, the pressure of the hydraulic press is 20~ 30Mp；
（3）Baking-curing：By step（2）The adobe of middle compression moulding, which is placed in dry kiln, is toasted to obtain magnesia carbon brick, baking Temperature is 150~300 DEG C, and baking time is 10~20h.
Preparation method of the present invention is simple, and step is easily operated, and alumina particle is used to reduce preparation for the raw material of no carbon brick Cost, hydroxymethyl cellulose and bonding agent cooperation can improve the bond strength of no carbon brick at normal temperatures, the addition of molybdenum disilicide Increase the inoxidizability and corrosion resistance of brick body.
Specific implementation mode
The present invention is further explained in the light of specific embodiments.
Embodiment one：
A kind of no carbon brick, each component are calculated by weight as：60 parts of fused magnesite particle, 20 parts of fused magnesite fine powder, alumina The grain size of 1 part of 5 parts of grain, 2 parts of hydroxypropyl methyl cellulose, 5 parts of molybdenum disilicide and bonding agent, fused magnesite particle is 5mm, electric smelting The granularity of magnesia powder is 300 mesh, and the grain size of alumina particle is 3mm, and bonding agent is calcium lignosulfonate or calcium aluminate.
Preparation method without carbon brick：
（1）It is kneaded：It weighs respectively in parts by weight：60 parts of fused magnesite particle, 20 parts of fused magnesite fine powder, alumina particle 20 Part, 2 parts of hydroxypropyl methyl cellulose, 5 parts of molybdenum disilicide and 1 part of bonding agent, first add fused magnesite particle and alumina particle Enter and be kneaded 5min into kneading machine, bonding agent is then added and continues to be kneaded 5min, then sequentially adds molybdenum disilicide and hydroxypropyl Methylcellulose 20min is eventually adding fused magnesite fine powder and continues to mix 10min formation pugs；
（2）Compression moulding：Compression moulding on hydraulic press is added in pug, the pressure of hydraulic press is 20Mp；
（3）Baking-curing：By step（2）The adobe of middle compression moulding, which is placed in dry kiln, is toasted to obtain magnesia carbon brick, baking Temperature is 300 DEG C, baking time 10h.
Embodiment two：
A kind of no carbon brick, each component are calculated by weight as：70 parts of fused magnesite particle, 15 parts of fused magnesite fine powder, alumina 10 parts of grain, 1.5 parts of hydroxypropyl methyl cellulose, 1.5 parts of molybdenum disilicide and 2 parts of bonding agent, the grain size of fused magnesite particle are The granularity of 3mm, fused magnesite fine powder are 320 mesh, and the grain size of alumina particle is 4mm, and bonding agent is calcium lignosulfonate or aluminic acid Calcium.
Preparation method without carbon brick：
（1）It is kneaded：It weighs respectively in parts by weight：70 parts of fused magnesite particle, 15 parts of fused magnesite fine powder, alumina particle 10 Part, 1.5 parts of hydroxypropyl methyl cellulose, 2 parts of molybdenum disilicide and 3 parts of bonding agent, first by fused magnesite particle and alumina particle It is added and is kneaded 10min into kneading machine, bonding agent is then added and continues to be kneaded 8min, then sequentially adds molybdenum disilicide and hydroxypropyl Ylmethyl cellulose 15min is eventually adding fused magnesite fine powder and continues to mix 15min formation pugs；
（2）Compression moulding：Compression moulding on hydraulic press is added in pug, the pressure of hydraulic press is 25Mp；
（3）Baking-curing：By step（2）The adobe of middle compression moulding, which is placed in dry kiln, is toasted to obtain magnesia carbon brick, baking Temperature is 200 DEG C, baking time 15h.
Embodiment three：
A kind of no carbon brick, each component are calculated by weight as：80 parts of fused magnesite particle, 10 parts of fused magnesite fine powder, alumina The grain size of 5 parts of 20 parts of grain, 1 part of hydroxypropyl methyl cellulose, 1 part of molybdenum disilicide and bonding agent, fused magnesite particle is 1mm, electricity The granularity of fused magnesia fine powder is 350 mesh, and the grain size of alumina particle is 5mm, and bonding agent is calcium lignosulfonate or calcium aluminate.
Preparation method without carbon brick：
（1）It is kneaded：It weighs respectively in parts by weight：80 parts of fused magnesite particle, 10 parts of fused magnesite fine powder, alumina particle 20 Part, 1 part of hydroxypropyl methyl cellulose, 1 part of molybdenum disilicide and 5 parts of bonding agent, first add fused magnesite particle and alumina particle Enter and be kneaded 20min into kneading machine, bonding agent is then added and continues to be kneaded 10min, then sequentially adds molybdenum disilicide and hydroxypropyl Ylmethyl cellulose 10min is eventually adding fused magnesite fine powder and continues to mix 20min formation pugs；
（2）Compression moulding：Compression moulding on hydraulic press is added in pug, the pressure of hydraulic press is 30Mp；
（3）Baking-curing：By step（2）The adobe of middle compression moulding, which is placed in dry kiln, is toasted to obtain magnesia carbon brick, baking Temperature is 150 DEG C, baking time 20h.

Claims (6)

1. a kind of no carbon brick, it is characterized in that：Each component is calculated by weight as：60~80 parts of fused magnesite particle, fused magnesite 10~20 parts of fine powder, 5~20 parts of alumina particle, 1~2 part of hydroxypropyl methyl cellulose, 1~5 part of molybdenum disilicide and bonding agent 1~ 5 parts.
2. as described in claim 1 without carbon brick, it is characterized in that：The grain size of the fused magnesite particle is 1~5mm.
3. as described in claim 1 without carbon brick, it is characterized in that：The granularity of the fused magnesite fine powder is 300~350 mesh.
4. as described in claim 1 without carbon brick, it is characterized in that：The grain size of the alumina particle is 3~5mm.
5. as described in claim 1 without carbon brick, it is characterized in that：The bonding agent is calcium lignosulfonate or calcium aluminate.
6. the preparation method of no carbon brick described in claim 1, it is characterised in that：Include the following steps：
（1）It is kneaded：It weighs respectively in parts by weight：60~80 parts of fused magnesite particle, 10~20 parts of fused magnesite fine powder, alumina 1~5 part of 5~20 parts of particle, 1~2 part of hydroxypropyl methyl cellulose, 1~5 part of molybdenum disilicide and bonding agent, first by electric-melting magnesium Sand particle and alumina particle, which are added into kneading machine, is kneaded 5~20min, and bonding agent is then added and continues 5~10min of mixing, connects It and sequentially adds 10~20min of molybdenum disilicide and hydroxypropyl methyl cellulose, be eventually adding fused magnesite fine powder and continue mixing 10 ~20min forms pug；
（2）Compression moulding：Pug is added compression moulding on hydraulic press, the pressure of the hydraulic press is 20~ 30Mp；
（3）Baking-curing：By step（2）The adobe of middle compression moulding, which is placed in dry kiln, is toasted to obtain magnesia carbon brick, baking Temperature is 150~300 DEG C, and baking time is 10~20h.
CN201810264060.2A 2018-03-28 2018-03-28 A kind of no carbon brick and preparation method thereof Pending CN108546134A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112851378A (en) * 2021-01-23 2021-05-28 江苏锦耐新材料科技有限公司 Carbon-free brick for steel ladle and processing method thereof
CN113354424A (en) * 2021-06-15 2021-09-07 洛阳广潇新材料科技有限公司 High-stripping-resistance oxygen lance brick and preparation method thereof

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CN107352978A (en) * 2017-08-30 2017-11-17 徐州贝克福尔节能环保技术有限公司 A kind of high-strength antiseepage brick and its preparation technology

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CN105523749A (en) * 2015-12-21 2016-04-27 江苏苏嘉集团新材料有限公司 Magnesium boron brick and preparation method thereof
CN105924186A (en) * 2016-04-22 2016-09-07 长兴县中泰耐火材料有限公司 Steel ladle brick with molten steel purification effect and preparation method therefor
CN106747509A (en) * 2016-12-13 2017-05-31 山西昊业新材料开发有限公司 A kind of ladle wall carbon-free pressed machine brick and preparation method thereof
CN107352978A (en) * 2017-08-30 2017-11-17 徐州贝克福尔节能环保技术有限公司 A kind of high-strength antiseepage brick and its preparation technology

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112851378A (en) * 2021-01-23 2021-05-28 江苏锦耐新材料科技有限公司 Carbon-free brick for steel ladle and processing method thereof
CN113354424A (en) * 2021-06-15 2021-09-07 洛阳广潇新材料科技有限公司 High-stripping-resistance oxygen lance brick and preparation method thereof

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Application publication date: 20180918