CN105294128A - Andalusite-mullite composite material brick - Google Patents

Andalusite-mullite composite material brick Download PDF

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Publication number
CN105294128A
CN105294128A CN201510801557.XA CN201510801557A CN105294128A CN 105294128 A CN105294128 A CN 105294128A CN 201510801557 A CN201510801557 A CN 201510801557A CN 105294128 A CN105294128 A CN 105294128A
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China
Prior art keywords
conjunction
base
brick
andalusite
component content
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Pending
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CN201510801557.XA
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Chinese (zh)
Inventor
段根荣
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Changxing Xinhongxin Fireproof Material Co Ltd
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Changxing Xinhongxin Fireproof Material Co Ltd
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Priority to CN201510801557.XA priority Critical patent/CN105294128A/en
Publication of CN105294128A publication Critical patent/CN105294128A/en
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Abstract

The invention provides an andalusite-mullite composite material brick. The andalusite-mullite composite material brick has high inoxidizability, stripping resistance, high refractoriness, a high usage temperature, a low thermal expansion coefficient, good strength, low weight, excellent heat stability and a long service life. The andalusite-mullite composite material brick comprises, by weight, 30-50 parts of a crystal phase material and 50-70 parts of a binding base material, and the number of the total weight parts of the crystal phase material and the binding base material is 100. The andalusite-mullite composite material brick also comprises a proper amount of a microcrystalline nucleating agent. The crystal phase material comprises 40-60wt% of andalusite aggregate and 60-40wt% of mullite aggregate and the above aggregate has particle sizes less than 0.65mm. The andalusite-mullite composite material brick has the advantages of high crystal structure, excellent inoxidizability, high refractoriness, high usage temperature, low thermal expansion coefficient, good compressive strength, low specific gravity, excellent heat stability, stripping resistance, high high-temperature breaking strength and long service life.

Description

A kind of andaluzite--mullite composite material brick
Technical field
The present invention relates to refractory materials, be specifically related to a kind of andaluzite--mullite composite material brick.
Background technology
In recent years, global economy to integrated future development, China's rapid economic development, living standards of the people improve constantly, to the kind of fragment of brick series products and the requirement of quality more and more higher, facilitate the flourish of the industries such as domestic electronics, magneticsubstance, building materials, new forms of energy, devitrified glass.Along with the research and development success of plastics on new materials fragment of brick and the update of fragment of brick series products, manufacturer is at the sintering process of product, produce equipment aspect also constantly to improve, to hot industry fragment of brick, refractory kiln, furnace kiln structure material is had higher requirement, traditional clayey, High-Alumina, tektite diamond stone matter, silicon-carborundum matter and conventional cordierite matter refractory kiln and kiln refractory product cannot meet service requirements, exploitation adapts to high-quality by the high anti-oxidation burning product and burn till, antistripping, refractoriness is high, use temperature is high, thermal expansivity is low, intensity is good, weight is low, high crystal mullite-cordierite matter hot industry fragment of brick---the refractory kiln compared with the long life of excellent heat stability, structure fragment of brick, structured material has become a kind of development trend.High crystal mullite-cordierite matter hot industry fragment of brick---refractory kiln, structure fragment of brick, structured material has antistripping, refractoriness is high, use temperature is high, thermal expansivity is low, good thermal shock stability, high strength, anti-oxidant, the advantages such as long service life, and can compacting be adopted, extrude, cast, roll extrusion, the multiple molding mode such as ramming makes the product of different shape, except making the various special-shaped kiln furnitures of every profession and trade needs, structured material (as: the kiln car hollow periphery brick for every profession and trade stove can also be made, the hollow suspender member of Yao Ding and kiln wall), can significantly reduce by burning product fuel consumption after using, can avoid dirty defect simultaneously, improve quality product, the high crystal mullite-cordierite matter hot industry fragments of brick of research and development, comprise refractory kiln, structure fragment of brick, the optimumitem of structured material.
At present, domestic have minority scientific research institution and producer that high crystal mullite-cordierite matter hot industry fragment of brick " refractory kiln, structure fragment of brick, structured material " production technology is classified as main research project and develops, but because the aspects such as formula for a product, raw materials quality, working condition, production technique, quality control also exist deficiency, still rest on experimental stage, fail to find Key Implementation scale operation height crystal mullite-cordierite matter hot industry fragment of brick, comprise the breach of refractory kiln, structure fragment of brick, structured material.
Summary of the invention
The object of the invention is to for the problems referred to above, provide that a kind of high anti-oxidation, antistripping, refractoriness are high, use temperature is high, thermal expansivity is low, intensity is good, weight is low, refractory kiln, structured material and technique thereof are simple, cost is low for a kind of andaluzite compared with the long life of excellent heat stability--mullite composite material brick---, be applicable to the production method of scale operation.
The technical solution used in the present invention is: a kind of andaluzite--mullite composite material brick, comprise the crystalline phase material of 30-50 weight part and 50-70 weight part in conjunction with base-material, selected crystalline phase material reaches 100 weight parts with the total component in conjunction with base-material, then adds appropriate crystallite nucleation agent;
Wherein: crystalline phase material is 40-60wt% andalusite aggregate and 60-40wt% mullite aggregate, and the particle diameter of above-mentioned aggregate is less than 0.65mm;
Be: containing MgO finely-powdered minerals: MgO component content is greater than 50% that fineness requirement is by 500 orders, and MgO finely-powdered minerals accounts for 3 ~ 7wt% in conjunction with base-material in conjunction with base-material; Al2O3 micro mist: Al2O3 component content is greater than 99.9%, particle diameter is less than 7.5 μm, and Al2O3 micro mist accounts for 60 ~ 67wt% in conjunction with base-material; SiO2 micro mist: SiO2 component content is greater than 99%, particle diameter is less than 2 μm, and SiO2 micro mist accounts for 20 ~ 25wt% in conjunction with base-material; Kaolin: Al2O3 component content is greater than 36%, Fe2O3 component content and is less than 0.5%, fineness requirement is by 325 orders, and kaolin fine powder accounts for the 5-15wt% in conjunction with base-material;
Crystallite nucleation agent adopts the agent of ZrO2 crystallite nucleation, and fineness requirement is by 600 orders, and crystallite nucleation agent is above-mentioned selected crystalline phase material and the 7-14wt% in conjunction with the total amount of base-material;
Above-mentioned raw materials, after batch mixing, bundle material, shaping, drying, is calcined as finished product, in calcination process, comprises constant temperature and pressure calcination method and composite crystal is combined to reaction process, wherein: constant temperature and pressure calcination method is: when 300 DEG C, and constant temperature and pressure 5-8 hour; When 800 DEG C, constant temperature and pressure 5-10 hour; Composite crystal is combined to reaction process: be warming up to first paragraph constant temperature and pressure, in the temperature of first paragraph constant temperature and pressure 1500-1750 DEG C, sinters 5-10 hour under normal pressure; Be warming up to second segment constant temperature and pressure again, in the temperature of second segment constant temperature and pressure 1800-2000 DEG C, under normal pressure, sinter 15-20 hour.
Goods of the present invention, have high crystalline structure, antioxidant property is excellent, refractoriness is high, use temperature is high, thermal expansivity is low, ultimate compression strength is high, proportion is low, excellent heat stability, antistrip performance, high temperature break resistant intensity are high, the advantage of long service life; Technique of the present invention, has the advantage that technique is simple, cost is low, be applicable to scale operation, is applicable to refractory kiln, structured material preparation.
Embodiment
Below by specific embodiment, the present invention is described in further detail.
Embodiment 1:
The technical scheme of the embodiment of the present invention is: a kind of andaluzite--mullite composite material brick, comprise the crystalline phase material of 30 weight parts and 70 weight parts in conjunction with base-material, selected crystalline phase material reaches 100 weight parts with the total component in conjunction with base-material, then adds appropriate crystallite nucleation agent;
Wherein: crystalline phase material is 40wt% andalusite aggregate and 60wt% mullite aggregate, and the particle diameter of above-mentioned aggregate is less than 0.65mm;
Be: containing MgO finely-powdered minerals: MgO component content is greater than 50% that fineness requirement is by 500 orders, and MgO finely-powdered minerals accounts for the 3wt% in conjunction with base-material in conjunction with base-material; Al2O3 micro mist: Al2O3 component content is greater than 99.9%, particle diameter is less than 7.5 μm, and Al2O3 micro mist accounts for the 67wt% in conjunction with base-material; SiO2 micro mist: SiO2 component content is greater than 99%, particle diameter is less than 2 μm, and SiO2 micro mist accounts for the 20wt% in conjunction with base-material; Kaolin: Al2O3 component content is greater than 36%, Fe2O3 component content and is less than 0.5%, fineness requirement is by 325 orders, and kaolin fine powder accounts for the 10wt% in conjunction with base-material;
Crystallite nucleation agent adopts the agent of ZrO2 crystallite nucleation, and fineness requirement is by 600 orders, and crystallite nucleation agent is above-mentioned selected crystalline phase material and the 7wt% in conjunction with the total amount of base-material;
Above-mentioned raw materials, after batch mixing, bundle material, shaping, drying, is calcined as finished product, in calcination process, comprises constant temperature and pressure calcination method and composite crystal is combined to reaction process, wherein: constant temperature and pressure calcination method is: when 300 DEG C, and constant temperature and pressure 8 hours; When 800 DEG C, constant temperature and pressure 10 hours; Composite crystal is combined to reaction process: be warming up to first paragraph constant temperature and pressure, in the temperature of first paragraph constant temperature and pressure 1500 DEG C, sinters 10 hours under normal pressure; Be warming up to second segment constant temperature and pressure again, in the temperature of second segment constant temperature and pressure 1800 DEG C, under normal pressure, sinter 20 hours.
Goods of the present invention, have high crystalline structure, antioxidant property is excellent, refractoriness is high, use temperature is high, thermal expansivity is low, ultimate compression strength is high, proportion is low, excellent heat stability, antistrip performance, high temperature break resistant intensity are high, the advantage of long service life; Technique of the present invention, has the advantage that technique is simple, cost is low, be applicable to scale operation, is applicable to refractory kiln, structured material preparation.
Embodiment 2:
The technical scheme of the embodiment of the present invention is: a kind of andaluzite--mullite composite material brick, comprise the crystalline phase material of 50 weight parts and 50 weight parts in conjunction with base-material, selected crystalline phase material reaches 100 weight parts with the total component in conjunction with base-material, then adds appropriate crystallite nucleation agent;
Wherein: crystalline phase material is 60wt% andalusite aggregate and 40wt% mullite aggregate, and the particle diameter of above-mentioned aggregate is less than 0.65mm;
Be: containing MgO finely-powdered minerals: MgO component content is greater than 50% that fineness requirement is by 500 orders, and MgO finely-powdered minerals accounts for the 7wt% in conjunction with base-material in conjunction with base-material; Al2O3 micro mist: Al2O3 component content is greater than 99.9%, particle diameter is less than 7.5 μm, and Al2O3 micro mist accounts for the 60wt% in conjunction with base-material; SiO2 micro mist: SiO2 component content is greater than 99%, particle diameter is less than 2 μm, and SiO2 micro mist accounts for the 25wt% in conjunction with base-material; Kaolin: Al2O3 component content is greater than 36%, Fe2O3 component content and is less than 0.5%, fineness requirement is by 325 orders, and kaolin fine powder accounts for the 8wt% in conjunction with base-material;
Crystallite nucleation agent adopts the agent of ZrO2 crystallite nucleation, and fineness requirement is by 600 orders, and crystallite nucleation agent is above-mentioned selected crystalline phase material and the 10wt% in conjunction with the total amount of base-material;
Above-mentioned raw materials, after batch mixing, bundle material, shaping, drying, is calcined as finished product, in calcination process, comprises constant temperature and pressure calcination method and composite crystal is combined to reaction process, wherein: constant temperature and pressure calcination method is: when 300 DEG C, and constant temperature and pressure 8 hours; When 800 DEG C, constant temperature and pressure 8 hours; Composite crystal is combined to reaction process: be warming up to first paragraph constant temperature and pressure, in the temperature of first paragraph constant temperature and pressure 1750 DEG C, sinters 10 hours under normal pressure; Be warming up to second segment constant temperature and pressure again, in the temperature of second segment constant temperature and pressure 2000 DEG C, under normal pressure, sinter 20 hours.
Goods of the present invention, have high crystalline structure, antioxidant property is excellent, refractoriness is high, use temperature is high, thermal expansivity is low, ultimate compression strength is high, proportion is low, excellent heat stability, antistrip performance, high temperature break resistant intensity are high, the advantage of long service life; Technique of the present invention, has the advantage that technique is simple, cost is low, be applicable to scale operation, is applicable to refractory kiln, structured material preparation.
Embodiment 3:
The technical scheme of the embodiment of the present invention is: a kind of andaluzite--mullite composite material brick, comprise the crystalline phase material of 40 weight parts and 60 weight parts in conjunction with base-material, selected crystalline phase material reaches 100 weight parts with the total component in conjunction with base-material, then adds appropriate crystallite nucleation agent;
Wherein: crystalline phase material is 50wt% andalusite aggregate and 50wt% mullite aggregate, and the particle diameter of above-mentioned aggregate is less than 0.65mm;
Be: containing MgO finely-powdered minerals: MgO component content is greater than 50% that fineness requirement is by 500 orders, and MgO finely-powdered minerals accounts for the 6wt% in conjunction with base-material in conjunction with base-material; Al2O3 micro mist: Al2O3 component content is greater than 99.9%, particle diameter is less than 7.5 μm, and Al2O3 micro mist accounts for the 65wt% in conjunction with base-material; SiO2 micro mist: SiO2 component content is greater than 99%, particle diameter is less than 2 μm, and SiO2 micro mist accounts for the 22wt% in conjunction with base-material; Kaolin: Al2O3 component content is greater than 36%, Fe2O3 component content and is less than 0.5%, fineness requirement is by 325 orders, and kaolin fine powder accounts for the 7wt% in conjunction with base-material;
Crystallite nucleation agent adopts the agent of ZrO2 crystallite nucleation, and fineness requirement is by 600 orders, and crystallite nucleation agent is above-mentioned selected crystalline phase material and the 14wt% in conjunction with the total amount of base-material;
Above-mentioned raw materials, after batch mixing, bundle material, shaping, drying, is calcined as finished product, in calcination process, comprises constant temperature and pressure calcination method and composite crystal is combined to reaction process, wherein: constant temperature and pressure calcination method is: when 300 DEG C, and constant temperature and pressure 6 hours; When 800 DEG C, constant temperature and pressure 6 hours; Composite crystal is combined to reaction process: be warming up to first paragraph constant temperature and pressure, in the temperature of first paragraph constant temperature and pressure 1650 DEG C, sinters 8 hours under normal pressure; Be warming up to second segment constant temperature and pressure again, in the temperature of second segment constant temperature and pressure 1900 DEG C, under normal pressure, sinter 18 hours.
Goods of the present invention, have high crystalline structure, antioxidant property is excellent, refractoriness is high, use temperature is high, thermal expansivity is low, ultimate compression strength is high, proportion is low, excellent heat stability, antistrip performance, high temperature break resistant intensity are high, the advantage of long service life; Technique of the present invention, has the advantage that technique is simple, cost is low, be applicable to scale operation, is applicable to refractory kiln, structured material preparation.

Claims (1)

1. andaluzite--a mullite composite material brick, is characterized in that, comprise the crystalline phase material of 30-50 weight part and 50-70 weight part in conjunction with base-material, selected crystalline phase material and the total component in conjunction with base-material reach 100 weight parts, then add appropriate crystallite nucleation agent;
Wherein:
1) crystalline phase material is 40-60wt% andalusite aggregate and 60-40wt% mullite aggregate, and the particle diameter of above-mentioned aggregate is less than 0.65mm;
2) in conjunction with base-material be:
Containing MgO finely-powdered minerals: MgO component content is greater than 50%, fineness requirement is by 500 orders, and MgO finely-powdered minerals accounts for 3 ~ 7wt% in conjunction with base-material;
Al2O3 micro mist: Al2O3 component content is greater than 99.9%, particle diameter is less than 7.5 μm, and Al2O3 micro mist accounts for 60 ~ 67wt% in conjunction with base-material;
SiO2 micro mist: SiO2 component content is greater than 99%, particle diameter is less than 2 μm, and SiO2 micro mist accounts for 30 ~ 35wt% in conjunction with base-material;
Kaolin: Al2O3 component content is greater than 36%, Fe2O3 component content and is less than 0.5%, fineness requirement is by 325 orders, and kaolin fine powder accounts for the 5-15wt% in conjunction with base-material;
3) crystallite nucleation agent adopts the agent of ZrO2 crystallite nucleation, and fineness requirement is by 600 orders, and crystallite nucleation agent is above-mentioned selected crystalline phase material and the 7-14wt% in conjunction with the total amount of base-material;
Above-mentioned raw materials, after batch mixing, bundle material, shaping, drying, is calcined as finished product.
CN201510801557.XA 2015-11-19 2015-11-19 Andalusite-mullite composite material brick Pending CN105294128A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1785909A (en) * 2005-12-09 2006-06-14 陈文杨 Ltigh crystalline structure iolite mullite kiln, kiln refractory product and calcining technology
CN102161590A (en) * 2010-02-24 2011-08-24 山东鲁耐窑业有限责任公司 Mullite-andalusite product for key position of dry quenching device and preparation method thereof
CN102491773A (en) * 2011-12-15 2012-06-13 广东热金宝新材料科技有限公司 High-crystal mullite-iolite high-temperature industrial ceramic and production method for same
CN103641501A (en) * 2013-12-05 2014-03-19 山东耐材集团鲁耐窑业有限公司 Impervious low-aluminum mullite brick for blast furnace and preparation method thereof
CN104876609A (en) * 2015-05-29 2015-09-02 柳州普亚贸易有限公司 Thermal-shock resistant refractory brick

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1785909A (en) * 2005-12-09 2006-06-14 陈文杨 Ltigh crystalline structure iolite mullite kiln, kiln refractory product and calcining technology
CN102161590A (en) * 2010-02-24 2011-08-24 山东鲁耐窑业有限责任公司 Mullite-andalusite product for key position of dry quenching device and preparation method thereof
CN102491773A (en) * 2011-12-15 2012-06-13 广东热金宝新材料科技有限公司 High-crystal mullite-iolite high-temperature industrial ceramic and production method for same
CN103641501A (en) * 2013-12-05 2014-03-19 山东耐材集团鲁耐窑业有限公司 Impervious low-aluminum mullite brick for blast furnace and preparation method thereof
CN104876609A (en) * 2015-05-29 2015-09-02 柳州普亚贸易有限公司 Thermal-shock resistant refractory brick

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Application publication date: 20160203