CN108975882A - A kind of energy saving and environment friendly light mullite brick production method - Google Patents

A kind of energy saving and environment friendly light mullite brick production method Download PDF

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Publication number
CN108975882A
CN108975882A CN201810860340.XA CN201810860340A CN108975882A CN 108975882 A CN108975882 A CN 108975882A CN 201810860340 A CN201810860340 A CN 201810860340A CN 108975882 A CN108975882 A CN 108975882A
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mullite brick
mass fraction
mullite
energy saving
environment friendly
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CN201810860340.XA
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Inventor
缪桂平
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Dongtai Yue Xing Refractory Co Ltd
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Dongtai Yue Xing Refractory Co Ltd
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Priority to CN201810860340.XA priority Critical patent/CN108975882A/en
Publication of CN108975882A publication Critical patent/CN108975882A/en
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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
    • 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
    • C04B35/622Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63Preparing 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
    • C04B35/632Organic additives
    • C04B35/636Polysaccharides or derivatives 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
    • C04B38/00Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • C04B38/06Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
    • C04B38/063Preparing or treating the raw materials individually or as batches
    • C04B38/0635Compounding ingredients
    • C04B38/0645Burnable, meltable, sublimable materials
    • C04B38/0675Vegetable refuse; Cellulosic materials, e.g. wood chips, cork, peat, paper
    • 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
    • C04B2235/3427Silicates other than clay, e.g. water glass
    • C04B2235/3463Alumino-silicates other than clay, e.g. mullite
    • 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
    • C04B2235/349Clays, e.g. bentonites, smectites such as montmorillonite, vermiculites or kaolines, e.g. illite, talc or sepiolite
    • 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
    • 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
    • C04B2235/9607Thermal properties, e.g. thermal expansion coefficient

Abstract

The present invention provides a kind of energy saving and environment friendly light mullite brick production method, the present invention substitutes polystyrene foam ball using sawdust, reduces the pollution to environment and the damage to human health during the preparation process;The present invention is preferred to prepare raw material and its component ratio, including sawdust, kaolin, mullite, aluminium micro mist, kyanite, organic bond, its weight ratio is 6:7:5:3:5, using specific preparation method, each constitutive material can not only play its high-temperature behavior and thermal insulation fire-resistant advantage, coordinative role mutual simultaneously produces excellent technical effect, and while reaching density requirements, thermal insulation property and thermal stability also greatly improve the mullite brick of preparation.

Description

A kind of energy saving and environment friendly light mullite brick production method
Technical field
The present invention relates to heat-resisting fire material production technical fields, and in particular to a kind of energy saving and environment friendly light mullite brick Production method.
Background technique
Energy saving requirement is increasingly improved in the world, and the research and development of light heat insulation material is rapid, light mullite brick It is one of heat insulating refractory material more satisfactory both at home and abroad, has good chemical stability, high temperature resistant, dimensional accuracy height, structure equal The features such as even, is now widely used in hot-blast stove, glass pot, metal smelter, ceramic roller kiln etc., before having a vast market Scape.
Demand with Thermal Equipment to the more and more harsh requirement of refractory material and energy-saving and emission-reduction, thermal insulation material to Bulk density is lighter, and the smaller direction of thermal coefficient is developed, but polystyrene bubble is generally added in present mullite brick formula Foam ball can generate pernicious gas in process of production and arrange to atmosphere, pollute atmospheric environment, while causing to the health of shop worker Harm,
Summary of the invention
In order to solve the problems in the existing technology, the present invention provides a kind of energy saving and environment friendly light mullite brick is raw Production method has the characteristics that energy conservation and environmental protection, good heat insulating, thermal stability are good.
Technical proposal that the invention solves the above-mentioned problems are as follows: a kind of energy saving and environment friendly light mullite brick production method, packet Sawdust, kaolin, mullite, aluminium micro mist, kyanite, organic bond are included, weight ratio 6:7:5:3:5, production method is such as Under:
Step (1) ingredient: sawdust, kaolin, mullite, aluminium micro mist, kyanite, combination are weighed by above-mentioned weight ratio Agent;
Step (2) mixing ageing mixture: by weighed raw material in step (1) be put into kneading machine it is sufficiently dry-mixed after, add water-wet mixed, add Water is the 60% of kyanite weight, and ageing mixture after the completion of wet mixing, obtains pug at ageing mixture time >=for 24 hours;
Step (3) molding: pug is squeezed, mullite brick green body is made in ramming process;
Step (4) is dry: mullite brick green body being placed in 50 DEG C and is dried, drying time >=96h obtains dry state base Body;
Step (5) is fired: dry state green body being placed in tunnel oven and is fired, firing temperature is 1450 DEG C, the firing time It is 12 hours, mullite brick blank is made;
Step (6) cutting: mullite brick blank is subjected to size cutting, surface grinding obtains mullite brick finished product;
Step (7) testing and finishing: mullite brick finished product is tested after natural cooling, using rattler to not conforming to The mullite brick finished product of lattice is modified;
Step (8) packaging factory: it dispatches from the factory after machine packaging being packaged by the brick after examining.
Further, organic bond is starch.
Further, sawdust partial size is 0.5-2mm, and no metal impurities are displayed one month or more.
Further, kaolin fineness≤320 mesh, Al in kaolin2O3Mass fraction >=37%, Fe2O3Mass fraction≤ 0.8%, K2O and Na2The sum of mass fraction of O≤1.2%.
Further, mullite fineness≤320 mesh, Al in mullite2O3Mass fraction >=65%, Fe2O3Mass fraction≤ 0.8%, K2O and Na2The sum of mass fraction of O≤1.0%.
Further, aluminium micro mist fineness≤1250 mesh, Al in aluminium micro mist2O3Mass fraction >=99%, Fe2O3Mass fraction ≤ 0.3%, crystalline structure is α type.
Further, kyanite fineness≤320 mesh, Al in kyanite2O3Mass fraction >=55%, Fe2O3Mass fraction≤ 1.0%, K2O and Na2The sum of mass fraction of O≤1.2%.
Further, the Cutting Length error of mullite brick blank is not more than 1mm, and cutting width error is not more than 0.5mm, Cutting thickness error is not more than 0.5mm, and cutting verticality is not more than 0.3mm, and cutting alternate angle is not more than 0.5mm.
The present invention has the utility model has the advantages that the present invention is reduced during the preparation process using sawdust substitution polystyrene foam ball Pollution to environment and the damage to human health;The present invention is preferred to prepare raw material and its component ratio, using specific Preparation method, each constitutive material can not only play its high-temperature behavior and thermal insulation fire-resistant advantage, while mutual coordinative role Excellent technical effect is produced, the mullite brick of preparation is while getting to density requirements, thermal insulation property and thermal stability It greatly improves.
Detailed description of the invention
Fig. 1 is process flow chart of the invention.
Specific embodiment
With reference to the accompanying drawing and specific embodiment the present invention is further illustrated.
Embodiment 1
A kind of energy saving and environment friendly light mullite brick production method, including sawdust, kaolin, mullite, aluminium micro mist, aquamaine Stone, organic bond, weight ratio 6:7:5:3:5, production method are as follows:
Step (1) ingredient: sawdust, kaolin, mullite, aluminium micro mist, kyanite, combination are weighed by above-mentioned weight ratio Agent;
Step (2) mixing ageing mixture: by weighed raw material in step (1) be put into kneading machine it is sufficiently dry-mixed after, add water-wet mixed, add Water is the 60% of kyanite weight, and ageing mixture after the completion of wet mixing, obtains pug at ageing mixture time >=for 24 hours;
Step (3) molding: pug is squeezed, mullite brick green body is made in ramming process;
Step (4) is dry: mullite brick green body being placed in 50 DEG C and is dried, drying time >=96h obtains dry state base Body;
Step (5) is fired: dry state green body being placed in tunnel oven and is fired, firing temperature is 1450 DEG C, the firing time It is 12 hours, mullite brick blank is made;
Step (6) cutting: mullite brick blank is subjected to size cutting, surface grinding obtains mullite brick finished product;
Step (7) testing and finishing: mullite brick finished product is tested after natural cooling, using rattler to not conforming to The mullite brick finished product of lattice is modified;
Step (8) packaging factory: it dispatches from the factory after machine packaging being packaged by the brick after examining.
Further, organic bond is starch.
Further, sawdust partial size is 0.5-2mm, and no metal impurities are displayed one month or more.
Further, kaolin fineness≤320 mesh, Al in kaolin2O3Mass fraction >=37%, Fe2O3Mass fraction≤ 0.8%, K2O and Na2The sum of mass fraction of O≤1.2%.
Further, mullite fineness≤320 mesh, Al in mullite2O3Mass fraction >=65%, Fe2O3Mass fraction≤ 0.8%, K2O and Na2The sum of mass fraction of O≤1.0%.
Further, aluminium micro mist fineness≤1250 mesh, Al in aluminium micro mist2O3Mass fraction >=99%, Fe2O3Mass fraction ≤ 0.3%, crystalline structure is α type.
Further, kyanite fineness≤320 mesh, Al in kyanite2O3Mass fraction >=55%, Fe2O3Mass fraction≤ 1.0%, K2O and Na2The sum of mass fraction of O≤1.2%.
Further, the Cutting Length error of mullite brick blank is not more than 1mm, and cutting width error is not more than 0.5mm, Cutting thickness error is not more than 0.5mm, and cutting verticality is not more than 0.3mm, and cutting alternate angle is not more than 0.5mm.
Performance detection is carried out to mullite brick finished product prepared in embodiment 1, as a result as shown in the table;
Light mullite brick the performance test results prepared by 1 embodiment 1 of table:
For embodiment 1, comparative test is done, with only difference is that for embodiment 1, the sawdust in raw material is become into polyphenyl Vinyl foam ball is made mullite brick finished product, carries out performance detection to it, as a result as shown in the table:
Prepared mullite brick end properties test result in 2 comparative test of table
By Tables 1 and 2 comparison it is found that the present invention substitutes polystyrene foam ball using sawdust completely, preparation does not come Stone brick finished product can reach density requirements, also not pollute atmospheric environment, provide good working environment for shop worker, heat preservation Performance and thermal stability also significantly improve.
Many other changes and remodeling can be made by not departing from the spirit and scope of the present invention.It should be appreciated that the present invention is not It is limited to specific embodiment, the scope of the present invention is defined by the following claims.

Claims (9)

1. a kind of energy saving and environment friendly light mullite brick production method, which is characterized in that including sawdust, kaolin, mullite, aluminium Micro mist, kyanite, organic bond, weight ratio 6:7:5:3:5, production method are as follows:
Step (1) ingredient: sawdust, kaolin, mullite, aluminium micro mist, kyanite, organic bond are weighed by above-mentioned weight ratio;
Step (2) mixing ageing mixture: by weighed raw material in step (1) be put into kneading machine it is sufficiently dry-mixed after, add water-wet mixed, amount of water It is the 60% of sawdust weight, ageing mixture after the completion of wet mixing, the ageing mixture time >=for 24 hours, obtain pug;
Step (3) molding: pug is squeezed, mullite brick green body is made in ramming process;
Step (4) is dry: mullite brick green body being placed in 50 DEG C and is dried, drying time >=96h obtains dry state green body;
Step (5) is fired: dry state green body being placed in tunnel oven and is fired, firing temperature is 1450 DEG C, the firing time 12 Hour, mullite brick blank is made;
Step (6) cutting: mullite brick blank is subjected to size cutting, surface grinding obtains mullite brick finished product;
Step (7) testing and finishing: mullite brick finished product is tested after natural cooling, using rattler to underproof Mullite brick finished product is modified;
Step (8) packaging factory: it dispatches from the factory after machine packaging being packaged by the brick after examining.
2. a kind of energy saving and environment friendly light mullite brick production method as described in claim 1, which is characterized in that described organic Bonding agent is starch.
3. a kind of energy saving and environment friendly light mullite brick production method as described in claim 1, which is characterized in that the sawdust Partial size is 0.5-2mm, and no metal impurities are displayed one month or more.
4. a kind of energy saving and environment friendly light mullite brick production method as described in one of claim 1-3, which is characterized in that institute State kaolin fineness≤320 mesh, Al in kaolin2O3Mass fraction >=37%, Fe2O3Mass fraction≤0.8%, K2O and Na2O's The sum of mass fraction≤1.2%.
5. a kind of energy saving and environment friendly light mullite brick production method as described in one of claim 1-3, which is characterized in that institute State mullite fineness≤320 mesh, Al in mullite2O3Mass fraction >=65%, Fe2O3Mass fraction≤0.8%, K2O and Na2O's The sum of mass fraction≤1.0%.
6. a kind of energy saving and environment friendly light mullite brick production method as claimed in claim 4, which is characterized in that described not come Stone fineness≤320 mesh, Al in mullite2O3Mass fraction >=65%, Fe2O3Mass fraction≤0.8%, K2O and Na2The quality of O point The sum of number≤1.0%.
7. a kind of energy saving and environment friendly light mullite brick production method as described in one of claim 1-3, which is characterized in that institute State aluminium micro mist fineness≤1250 mesh, Al in aluminium micro mist2O3Mass fraction >=99%, Fe2O3Mass fraction≤0.3%, crystalline structure are α type.
8. a kind of energy saving and environment friendly light mullite brick production method as described in one of claim 1-3, which is characterized in that institute State kyanite fineness≤320 mesh, Al in kyanite2O3Mass fraction >=55%, Fe2O3Mass fraction≤1.0%, K2O and Na2O's The sum of mass fraction≤1.2%.
9. a kind of energy saving and environment friendly light mullite brick production method as described in one of claim 1-3, which is characterized in that institute The Cutting Length error of mullite brick blank is stated no more than 1mm, cutting width error is not more than 0.5mm, and cutting thickness error is not Greater than 0.5mm, cuts verticality and be not more than 0.3mm, cutting alternate angle is not more than 0.5mm.
CN201810860340.XA 2018-08-01 2018-08-01 A kind of energy saving and environment friendly light mullite brick production method Pending CN108975882A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005012203A2 (en) * 2003-08-01 2005-02-10 Aalborg Universitet Method for preparing materials containing binder systems derived from amorphous silica and bases
CN102531642A (en) * 2010-12-30 2012-07-04 王秉吉 Brick for ceramic burner and manufacturing method
CN103204692A (en) * 2013-05-10 2013-07-17 郑州瑞泰耐火科技有限公司 Novel lightweight mullite brick and fabrication method thereof
CN106380223A (en) * 2016-08-29 2017-02-08 山东鲁阳节能材料股份有限公司 High-temperature-resistant light brick and preparation method thereof
CN107089835A (en) * 2017-05-03 2017-08-25 河南瑞泰耐火材料科技有限公司 Carbon calciner andalusite mullite composite brick and preparation method thereof
CN107089839A (en) * 2017-04-17 2017-08-25 武汉科技大学 A kind of light porous mullite aggregate and preparation method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005012203A2 (en) * 2003-08-01 2005-02-10 Aalborg Universitet Method for preparing materials containing binder systems derived from amorphous silica and bases
CN102531642A (en) * 2010-12-30 2012-07-04 王秉吉 Brick for ceramic burner and manufacturing method
CN103204692A (en) * 2013-05-10 2013-07-17 郑州瑞泰耐火科技有限公司 Novel lightweight mullite brick and fabrication method thereof
CN106380223A (en) * 2016-08-29 2017-02-08 山东鲁阳节能材料股份有限公司 High-temperature-resistant light brick and preparation method thereof
CN107089839A (en) * 2017-04-17 2017-08-25 武汉科技大学 A kind of light porous mullite aggregate and preparation method thereof
CN107089835A (en) * 2017-05-03 2017-08-25 河南瑞泰耐火材料科技有限公司 Carbon calciner andalusite mullite composite brick and preparation method thereof

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* Cited by examiner, † Cited by third party
Title
蒋道银: "《古陶瓷修复技艺》", 31 December 2012 *

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Application publication date: 20181211