CN103183517A - Light-weight high-temperature mullite refractory brick prepared from pulverized fuel ash - Google Patents

Light-weight high-temperature mullite refractory brick prepared from pulverized fuel ash Download PDF

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Publication number
CN103183517A
CN103183517A CN2013101230398A CN201310123039A CN103183517A CN 103183517 A CN103183517 A CN 103183517A CN 2013101230398 A CN2013101230398 A CN 2013101230398A CN 201310123039 A CN201310123039 A CN 201310123039A CN 103183517 A CN103183517 A CN 103183517A
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China
Prior art keywords
temperature
raw materials
refractory brick
light
weight
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CN2013101230398A
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Chinese (zh)
Inventor
黎元晚
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SHUOZHOU SHUOXIANG CERAMICS CO Ltd
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SHUOZHOU SHUOXIANG CERAMICS CO Ltd
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Priority to CN2013101230398A priority Critical patent/CN103183517A/en
Publication of CN103183517A publication Critical patent/CN103183517A/en
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Abstract

The invention discloses a light-weight high-temperature mullite refractory brick prepared from pulverized fuel ash. The light-weight high-temperature mullite refractory brick comprises the following raw materials: 40-50% of pulverized fuel ash, 25-35% of clay, 10-20% of aluminite powder, 7-8% of coal gangue, 1-2% of polystyrene, and 0.5-1.5% of saw dust. The light-weight high-temperature mullite refractory brick is prepared through the following steps: (1) weighing pulverized fuel ash, clay, aluminite powder, coal gangue, polystyrene and saw dust according to the proportion of the raw materials formulations; (2) grinding weighed coal gangue into powder, and mixing, adding water into, stirring the raw materials formulations into slurry, wherein the water addition is 23-25%; (3) placing the slurry as a product into a die to be subjected to compression moulding; (4) sending the compressed green body to a dry kiln to be dried, wherein the temperature is 100-150 DEG C, and the water content is 2-7%; (5) sending the dried green body in a tunnel kiln, and calcining for 38-42 minutes at the high temperature of 1,200-1,400 DEG C; and (6) cutting the calcined green body to form a finished product. The mullite refractory brick is energy-saving and is high in heat preservation efficiency.

Description

A kind of coal ash light high temperature mullite firebrick
Technical field
The present invention relates to a kind of lightweight high temperature mullite firebrick field, particularly relate to a kind of coal ash light high temperature mullite firebrick.
Background technology
Flyash is one of bigger industrial residue of the current discharge capacity of China, and flyash is the main solid waste that the coal-burning power plant discharges.Along with development of electric power industry, the flyash quantity discharged of coal-burning power plant increases atmosphere pollution year by year; Toxic chemical substance wherein also can work the mischief to human body and biology.The resource reutilization of flyash becomes handles the effective way of industrial residue, and the main oxides of flyash consists of: SiO2, Al2O3, FeO, Fe2O3, CaO, TiO2 etc.Tradition refractory brick uses aluminium vanadine and clay calcination to make, but the aluminium vanadine belongs to a kind of Nonrenewable resources, much also needs import, and also needs grinding to become face in using as raw material, and grinding time is also longer.
Summary of the invention
The present invention is exactly the problem that exists at the said products, a kind of coal ash light high temperature mullite firebrick is provided, solve and make the required raw material of lightweight highiy refractory brick, the aluminium vanadine is a kind of mineral wealth, and is non-renewable, much also needs import, and in using as raw material, also need grinding to become face, grinding time grows up to also that this is higher, and a large amount of flyash discharge capacity contaminate environment, how to make the problem of fly ash recycling.
The present invention is by the following technical solutions: a kind of coal ash light high temperature mullite firebrick, the composition of raw materials ratio is: flyash 40%-50%, clay 25%-35%, aluminium powder 10%-20%, coal gangue 7%-8%, polystyrene 1%-2%, sawdust 0.5%-1.5%.
A kind of coal ash light high temperature mullite firebrick making processes is:
(1) takes by weighing flyash 40%-50%, clay 25%-35%, aluminium powder 10%-20%, coal gangue 7%-8%, polystyrene 1%-2%, sawdust 0.5%-1.5% in the composition of raw materials ratio;
(2) the above-mentioned coal gangue that takes by weighing is carried out grinding to form in 3 hours powdery in ball mill, the above-mentioned composition of raw materials mixing and water adding that takes by weighing is stirred into mud, amount of water is 23%-25%;
(3) with above-mentioned mud by the required size of the goods corresponding mould of packing into, compression moulding;
(4) base substrate after will suppressing is delivered to dry kiln and is dried, and temperature is 100 ℃-150 ℃, and making water content is 2%-7%;
(5) base substrate after will drying is sent in the tunnel furnace, calcines 38-42 minute under 1200 ℃-1400 ℃ high temperature, and the waste heat after the calcining is used for the drying to base substrate;
(6) base substrate after will calcining is cut mill and is formed finished product.
The present invention compared with prior art has following beneficial effect: described a kind of coal ash light high temperature mullite firebrick, 1800 ℃ of JM mullite flame-proof degree, aluminum content is at 60%-65%, energy-conservation, the insulating efficiency height, the refractoriness height, thermal conductivity is little, can alleviate furnace wall thickness, shortens firing time, reduces fuel consumption, improves thermo-efficiency, reduce cost.
Embodiment
A kind of coal ash light high temperature mullite firebrick, the composition of raw materials ratio is: flyash 45%, clay 30%, aluminium powder 15%, coal gangue 7.5%, polystyrene 1.5%, sawdust 1%.
A kind of coal ash light high temperature mullite firebrick making processes is:
(1) takes by weighing flyash 45%, clay 30%, aluminium powder 15%, coal gangue 7.5%, polystyrene 1.5%, sawdust 1% in the composition of raw materials ratio;
(2) the above-mentioned coal gangue that takes by weighing is carried out grinding to form in 3 hours powdery in ball mill, the above-mentioned composition of raw materials mixing and water adding that takes by weighing is stirred into mud, amount of water is 23%-25%;
(3) with above-mentioned mud by the required size of goods pack into length be 240 millimeters, wide be that 115 millimeters, height are that 53 millimeters the hexahedral mould inner pressure in right angle is made type;
(4) base substrate after will suppressing is delivered to dry kiln and is dried, and temperature is 120 ℃, and making water content is 2%;
(5) base substrate after will drying is sent in the tunnel furnace, calcines under 1200 ℃ high temperature 40 minutes, and the waste heat after the calcining is used for the drying to base substrate;
(6) base substrate after will calcining is cut mill and is formed finished product.

Claims (2)

1. coal ash light high temperature mullite firebrick, it is characterized in that: the composition of raw materials ratio is: flyash 40%-50%, clay 25%-35%, aluminium powder 10%-20%, coal gangue 7%-8%, polystyrene 1%-2%, sawdust 0.5%-1.5%.
2. a kind of coal ash light high temperature mullite firebrick according to claim 1, it is characterized in that: making processes is:
(1) takes by weighing flyash 40%-50%, clay 25%-35%, aluminium powder 10%-20%, coal gangue 7%-8%, polystyrene 1%-2%, sawdust 0.5%-1.5% in the composition of raw materials ratio;
(2) the above-mentioned coal gangue that takes by weighing is carried out grinding to form in 3 hours powdery in ball mill, the above-mentioned composition of raw materials mixing and water adding that takes by weighing is stirred into mud, amount of water is 23%-25%;
(3) with above-mentioned mud by the required size of the goods corresponding mould of packing into, compression moulding;
(4) base substrate after will suppressing is delivered to dry kiln and is dried, and temperature is 100 ℃-150 ℃, and making water content is 2%-7%;
(5) base substrate after will drying is sent in the tunnel furnace, calcines 38-42 minute under 1200 ℃-1400 ℃ high temperature;
(6) base substrate after will calcining is cut mill and is formed finished product.
CN2013101230398A 2013-03-22 2013-03-22 Light-weight high-temperature mullite refractory brick prepared from pulverized fuel ash Pending CN103183517A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013101230398A CN103183517A (en) 2013-03-22 2013-03-22 Light-weight high-temperature mullite refractory brick prepared from pulverized fuel ash

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013101230398A CN103183517A (en) 2013-03-22 2013-03-22 Light-weight high-temperature mullite refractory brick prepared from pulverized fuel ash

Publications (1)

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CN103183517A true CN103183517A (en) 2013-07-03

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103979865A (en) * 2014-04-15 2014-08-13 马鞍山豹龙新型建材有限公司 Antibacterial anti-freezing aerated brick and preparation method thereof
CN104649688A (en) * 2013-11-21 2015-05-27 青岛润鑫伟业科贸有限公司 Production process flow of aluminum-silicon refractory material
CN104961474A (en) * 2015-06-10 2015-10-07 马鞍山金晟工业设计有限公司 Low-cost fly ash refractory material and preparation method thereof
CN105130494A (en) * 2015-08-13 2015-12-09 牛艳宁 Foaming thermal-insulation fireproof brick produced by using coal gangue, and preparation method thereof
CN105541392A (en) * 2015-12-25 2016-05-04 山东鲁阳节能材料股份有限公司 Heat reserving firebrick
CN106083097A (en) * 2016-06-28 2016-11-09 昆明理工大学 A kind of preparation method of fly ash base mullite fire resistant insulation material
CN107604233A (en) * 2017-10-11 2018-01-19 唐山工业职业技术学院 A kind of not broken ceramic preparation of high tenacity low-density
CN111393174A (en) * 2020-01-13 2020-07-10 山西超牌煅烧高岭土有限公司 Method for manufacturing M47 refractory material by using fly ash

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1252393A (en) * 1998-10-23 2000-05-10 鞍钢实业发展总公司一炼钢实业总厂 High-strength self-ignited sintered flyash brick and its making process
CN1830869A (en) * 2006-03-22 2006-09-13 西安墙体材料研究设计院 Sintered heat insulating hollow building block
US7871583B2 (en) * 2007-04-03 2011-01-18 Pingshuo Industrial Ltd Process for recovery of silica followed by alumina from coal fly ash

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1252393A (en) * 1998-10-23 2000-05-10 鞍钢实业发展总公司一炼钢实业总厂 High-strength self-ignited sintered flyash brick and its making process
CN1830869A (en) * 2006-03-22 2006-09-13 西安墙体材料研究设计院 Sintered heat insulating hollow building block
US7871583B2 (en) * 2007-04-03 2011-01-18 Pingshuo Industrial Ltd Process for recovery of silica followed by alumina from coal fly ash

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104649688A (en) * 2013-11-21 2015-05-27 青岛润鑫伟业科贸有限公司 Production process flow of aluminum-silicon refractory material
CN103979865A (en) * 2014-04-15 2014-08-13 马鞍山豹龙新型建材有限公司 Antibacterial anti-freezing aerated brick and preparation method thereof
CN103979865B (en) * 2014-04-15 2016-02-24 徐俊云 A kind of antibacterial antifreeze aerated bricks and preparation method thereof
CN104961474A (en) * 2015-06-10 2015-10-07 马鞍山金晟工业设计有限公司 Low-cost fly ash refractory material and preparation method thereof
CN105130494A (en) * 2015-08-13 2015-12-09 牛艳宁 Foaming thermal-insulation fireproof brick produced by using coal gangue, and preparation method thereof
CN105541392A (en) * 2015-12-25 2016-05-04 山东鲁阳节能材料股份有限公司 Heat reserving firebrick
CN106083097A (en) * 2016-06-28 2016-11-09 昆明理工大学 A kind of preparation method of fly ash base mullite fire resistant insulation material
CN107604233A (en) * 2017-10-11 2018-01-19 唐山工业职业技术学院 A kind of not broken ceramic preparation of high tenacity low-density
CN111393174A (en) * 2020-01-13 2020-07-10 山西超牌煅烧高岭土有限公司 Method for manufacturing M47 refractory material by using fly ash

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