CN101492304B - Flame-proof pouring material - Google Patents
Flame-proof pouring material Download PDFInfo
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- CN101492304B CN101492304B CN2009100965390A CN200910096539A CN101492304B CN 101492304 B CN101492304 B CN 101492304B CN 2009100965390 A CN2009100965390 A CN 2009100965390A CN 200910096539 A CN200910096539 A CN 200910096539A CN 101492304 B CN101492304 B CN 101492304B
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- mullite
- castable material
- refractory castable
- andalusite
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Abstract
The invention provides a refractory castable material, comprising the following components according to the weight percentage: 50-65% of mullite (M70), 10-20% of sialon powder, 5-7% of pure calcium aluminate cement, 5-10% of andalusite, 5-10% of mullite (M60), 2-3% of a-Al2O3 micropowder, 3-5% of silica fume and 5% of water. The refractory castable material of the invention reduces the coefficient of thermal expansion of the castable material, besides, microcrack caused by inconsistent coefficients of thermal expansion of the andalusite and the mullite can improve thermal shock stability of the castable material, furthermore, the andalusite is converted to the mullite at the temperature of 1,250-1,450 DEG C during heating and results in 5% of volume expansion, thus being favorable for improving the volume stability of the castable material under high temperature; meanwhile, products with determined alumina content can be accurately prepared by matching the products with mullite M70 and M60, therefore, the products are more essential and purer.
Description
Technical field
The present invention relates to a kind of mould material, specifically, relate to a kind of refractory castable that is used for cement production process.
Background technology
Directly have influence on the operation factor of whole kiln system the work-ing life of burner on the new type nonaqueous cement production line, and the mould material main component of using on original burner is corundum, and its volume density (reaches 3000kg/m greatly
3), the coal powder injection tube head forms bend pipe easily, cause the firing system point of ignition to depart from the kiln central point easily, damage refractory brick easily, influenced the work-ing life of refractory lining, simultaneously, the heat-shock resistance of this kind material and alkaline-resisting erosion performance are also relatively poor, have reduced its work-ing life more, and particularly the refractory castable at burner head place is particularly serious, operation factor influence to kiln system is very big, causes the cement production enterprise enormous economic loss.So a kind of refractory castable that under the prerequisite that does not change traditional processing technology, can greatly enhance productivity of our active demand.
Summary of the invention
The object of the present invention is to provide a kind of novel refractory castable, volume density is little, has high heat-shock resistance and alkaline-resisting erosion performance, and composition is consummate simultaneously, long service life.
For reaching described purpose, the invention provides a kind of refractory castable, form by following component, by weight percentage,
Mullite M70:50～65%,
The grand powder of match: 10～20%,
Pure calcium aluminate cement: 5～7%,
Andaluzite 5～10%,
Mullite M60 5～10%,
A-AL
2O
3Micro mist 2～3%,
Silicon ash 3～5%,
Water 5%.
Preferably, form by following component, by weight percentage,
Mullite M70 65%,
The grand powder of match: 10%,
Pure calcium aluminate cement: 5%,
Andaluzite: 5%,
Mullite M60:5%,
A-AL
2O
3Micro mist: 2%,
The silicon ash: 3%,
Water: 5%.
Preferably, form by following component, by weight percentage,
Mullite M70:60%,
The grand powder of match: 15%,
Pure calcium aluminate cement: 7%,
Andaluzite: 5%,
Mullite M60:5%,
A-AL
2O
3Micro mist: 2%,
The silicon ash: 3%,
Water: 5%.
Preferably, form by following component, by weight percentage,
Mullite M70:50%,
The grand powder of match: 10%,
Pure calcium aluminate cement: 7%,
Andaluzite: 10%,
Mullite M60:10%,
A-AL
2O
3Micro mist: 3%,
The silicon ash: 5%,
Water: 5%.
Preferably, described a kind of refractory castable also will additionally add 2% zirconium silicate of the mixture total mass of described 8 kinds of materials after preparation finishes.The less zirconium silicate (less than 1000 orders) of fineness in the refractory castable is distributed in the refractory castable easily and other raw materials form ceramic structure, makes the chemical resistance of concrete ability of this kind mould material strengthen.
Beneficial effect:
In the present invention, a kind of refractory castable is because the thermal expansivity of andaluzite is lower than mullite, its adding has reduced the thermal expansivity of mould material, in addition, inconsistent and the tiny crack that produces of itself and mullite thermal expansivity can improve the thermal shock resistance of mould material, and andaluzite is converted into mullite in 1250 ℃～1450 ℃ in heat-processed, produce 5% volumetric expansion, help improving the high volume stability of mould material.(promptly contain AL by M70 simultaneously
2O
370% mullite), M60 (promptly contains AL
2O
360% mullite) two kinds of different mullites of composition carry out proportioning to product, can comparatively accurately allot the product that alumina content is determined, make product more consummate.The main component of the grand powder of match is silicon, aluminium, oxygen and nitrogen, is the sosoloid of silicon-aluminium-oxygen-nitrogen system and related substances system thereof, has toughness preferably, very high hardness and wear resistance, and very high high-temperature oxidation resistance.Under such conditions of mixture ratios, the low (2800kg/m of the volume density of final product
3About), reduce thermal stresses and the gravity of itself, and pour into a mould a cube of mould material consumption that can reduce 200kg.
Embodiment:
Embodiment 1:
Under normal conditions, the present invention is made up of following component, by weight percentage,
Mullite M70 65%,
The grand powder of match: 10%,
Pure calcium aluminate cement: 5%,
Andaluzite: 5%,
Mullite M60:5%,
A-AL
2O
3Micro mist: 2%,
The silicon ash: 3%,
Water: 5%.
The present invention also will additionally add 2% zirconium silicate of the mixture total mass of described 8 kinds of materials after finishing in preparation.
Such proportioning can reach effect preferably, has especially used the different mullite of two kinds of salic compositions of M70 and M60 as raw material, can adjust the alumina content of product more accurately.Refractory castable of the present invention has abandoned that in the past the sort of depended merely on mullite or corundum is main single phase or compound phase thinking mutually, product has adopted multiple composite combined phase, based on the quaternary of alumina silica-zirconium oxide-silicon carbide mutually, auxilliary other binary phases, ternary phase, make it can adapt to various complex environments, increase work-ing life.Select a-AL
2O
3With the grand powder of match, purpose is to improve the flowing property of mould material, improves intensity.Final chemical resistance of concrete ability and the auxilliary rational structure that improves mould material.Select pure calcium aluminate cement to make wedding agent.Select aquation wedding agent-low calcium pure calcium aluminate cement for use, to guarantee demoulding strength and high temperature working strength.Under such proportioning, the performance of a kind of refractory castable of the present invention is:
Facts have proved: the beneficial effect of embodiments of the invention be following some, the one, the adding of andaluzite produces tiny crack, has improved the thermal shock resistance of product.The 2nd, the low (2800kg/m of this kind product innovation volume density
3About), reduce thermal stresses and the gravity of itself, and pour into a mould a cube of mould material consumption that can reduce 200kg.The 3rd, the adding of zirconium raw material has increased product opposing chemical erosion ability.With operation factor is that 95% cement producing line is an example, the original refractory castable in coal powder injection pipe place has only 4 months work-ing life, used now after the refractory castable of the present invention, bring up to more than 8 months its work-ing life, by once changing 2 tons of calculating of the effective material of coal powder injection, the cost of a coal powder injection pipe of cast approximately is 1.2 ten thousand yuan, and in the life-span that doubles, the mould material cost of saving in a year is 1.2 ten thousand yuan.Simultaneously, stop the kiln time, also can improve the grog turnout, reduce energy loss because of stopping heating up once more and causing behind the kiln owing to shortened, these several expense additions, the production line that can be each enterprise was saved expense hundreds of thousands of unit in 1 year.
Embodiment 2
Mullite M70:60%,
The grand powder of match: 15%,
Pure calcium aluminate cement: 7%,
Andaluzite: 5%,
Mullite M60:5%,
A-AL
2O
3Micro mist: 2%,
The silicon ash: 3%,
Water: 5%.
The present invention also will additionally add 2% zirconium silicate of the mixture total mass of described 8 kinds of materials after finishing in preparation.
Such proportioning is a kind of proportioning commonly used in industrial production, and cost performance is the highest.
Embodiment 3:
For some enterprise,, then can use following proportioning in order to reduce production costs.By weight percentage,
Mullite M70:50%,
The grand powder of match: 10%,
Pure calcium aluminate cement: 7%,
Andaluzite: 10%,
Mullite M60:10%,
A-AL
2O
3Micro mist: 3%,
The silicon ash: 5%,
Water: 5%.
The present invention also will additionally add 2% zirconium silicate of the mixture total mass of described 8 kinds of materials after finishing in preparation.
Such proportioning both can reduce production costs, and the performance of product also can reach standard.Being fit to medium-sized and small enterprises uses.
Claims (3)
1. refractory castable is characterized in that: forms by following component, by weight percentage,
Mullite M70 50～65%,
The grand powder 10～20% of match,
Pure calcium aluminate cement 5～7%,
Andaluzite 5～10%,
Mullite M60 5～10%,
A-Al
2O
3Micro mist 2～3%,
Silicon ash 3～5%,
Water 5%.
2. a kind of refractory castable as claimed in claim 1 is characterized in that: forms by following component, by weight percentage,
Mullite M70:65%,
The grand powder of match: 10%,
Pure calcium aluminate cement: 5%,
Andaluzite: 5%,
Mullite M60:5%,
A-Al
2O
3Micro mist: 2%,
The silicon ash: 3%,
Water: 5%.
3. a kind of refractory castable as claimed in claim 1 is characterized in that: forms by following component, by weight percentage,
Mullite M70:50%,
The grand powder of match: 10%,
Pure calcium aluminate cement: 7%,
Andaluzite: 10%,
Mullite M60:10%,
A-Al
2O
3Micro mist: 3%,
The silicon ash: 5%,
Water: 5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100965390A CN101492304B (en) | 2009-03-09 | 2009-03-09 | Flame-proof pouring material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100965390A CN101492304B (en) | 2009-03-09 | 2009-03-09 | Flame-proof pouring material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101492304A CN101492304A (en) | 2009-07-29 |
| CN101492304B true CN101492304B (en) | 2011-11-23 |
Family
ID=40923117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100965390A Active CN101492304B (en) | 2009-03-09 | 2009-03-09 | Flame-proof pouring material |
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| Country | Link |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101659561B (en) * | 2009-08-07 | 2012-03-21 | 通达耐火技术股份有限公司 | 800kg-class energy-saving heat insulation lining material and preparation method thereof |
| CN101659560B (en) * | 2009-08-07 | 2012-04-18 | 通达耐火技术股份有限公司 | 700kg-class energy-saving heat insulation lining material and preparation method thereof |
| CN101659559B (en) * | 2009-08-07 | 2012-04-11 | 通达耐火技术股份有限公司 | 600kg-class energy-saving heat insulation lining material and preparation method thereof |
| CN101659558B (en) * | 2009-08-07 | 2012-03-21 | 通达耐火技术股份有限公司 | 500kg-class energy-saving heat insulation lining material and preparation method thereof |
| CN102584296B (en) * | 2012-02-29 | 2013-07-31 | 浙江锦诚耐火材料有限公司 | Special castable for kiln outlet |
| CN102757253B (en) * | 2012-08-09 | 2014-06-25 | 河南理工大学 | 2500 m<3> blast furnace main iron runner castable |
| CN103771888B (en) * | 2014-02-16 | 2015-08-12 | 重庆广播电视大学 | A kind of 2500D/T Special castable for kiln outlet |
| CN107188579A (en) * | 2017-06-28 | 2017-09-22 | 长兴鑫迪耐火材料厂 | A kind of wear-resisting preformed bricks |
| CN111302773A (en) * | 2020-03-26 | 2020-06-19 | 攀枝花学院 | Preparation method of mullite porous ceramic |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1323761A (en) * | 2001-07-04 | 2001-11-28 | 中国建筑材料科学研究院 | Large Al-Si system large shaped refractory products and the production process |
| US20020022567A1 (en) * | 1998-08-20 | 2002-02-21 | Xiangmin Li | Non-slumping sprayable refractory castables containing thermal black |
| CN1450020A (en) * | 2003-05-09 | 2003-10-22 | 宜兴天霸非金属材料有限公司 | Alkali-resistant, chlorine-resistant and fire-resistant casting material |
| CN101172847A (en) * | 2007-09-30 | 2008-05-07 | 巩义市好运祥耐材有限公司 | Pouring material for producing high-temperature ceramic abrasion-proof lining body |
-
2009
- 2009-03-09 CN CN2009100965390A patent/CN101492304B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020022567A1 (en) * | 1998-08-20 | 2002-02-21 | Xiangmin Li | Non-slumping sprayable refractory castables containing thermal black |
| CN1323761A (en) * | 2001-07-04 | 2001-11-28 | 中国建筑材料科学研究院 | Large Al-Si system large shaped refractory products and the production process |
| CN1450020A (en) * | 2003-05-09 | 2003-10-22 | 宜兴天霸非金属材料有限公司 | Alkali-resistant, chlorine-resistant and fire-resistant casting material |
| CN101172847A (en) * | 2007-09-30 | 2008-05-07 | 巩义市好运祥耐材有限公司 | Pouring material for producing high-temperature ceramic abrasion-proof lining body |
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| Publication number | Publication date |
|---|---|
| CN101492304A (en) | 2009-07-29 |
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| CP03 | Change of name, title or address |
Address after: 313100 new industrial park, pheasant City, Huzhou, Zhejiang, Changxing County Patentee after: Zhejiang Jincheng new material Limited by Share Ltd Address before: 313100 pheasant Town Industrial Zone, Zhejiang, Changxing County Patentee before: Zhejiang Jincheng Refractories Co., Ltd. |
|
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Han Yuntao Inventor before: Zhu Guoping Inventor before: Liu Jiaxiang Inventor before: Zhu Qiliang Inventor before: Tang Chunqiang Inventor before: Sang Xinliang |
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Effective date of registration: 20170925 Address after: 116000, 775-5, Keda Road, Lushunkou District, Liaoning, Dalian Patentee after: Dalian heavy industry Limited by Share Ltd were already appointed Address before: 313100 new industrial park, pheasant City, Huzhou, Zhejiang, Changxing County Patentee before: Zhejiang Jincheng new material Limited by Share Ltd |