CN103771888B - A kind of 2500D/T Special castable for kiln outlet - Google Patents
A kind of 2500D/T Special castable for kiln outlet Download PDFInfo
- Publication number
- CN103771888B CN103771888B CN201410051456.0A CN201410051456A CN103771888B CN 103771888 B CN103771888 B CN 103771888B CN 201410051456 A CN201410051456 A CN 201410051456A CN 103771888 B CN103771888 B CN 103771888B
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- Prior art keywords
- powder
- cement
- kiln outlet
- alumina
- resistance
- Prior art date
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- 239000004568 cement Substances 0.000 claims abstract description 28
- 239000000843 powder Substances 0.000 claims abstract description 23
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052863 mullite Inorganic materials 0.000 claims abstract description 8
- 229910052851 sillimanite Inorganic materials 0.000 claims abstract description 8
- VEALVRVVWBQVSL-UHFFFAOYSA-N strontium titanate Chemical compound [Sr+2].[O-][Ti]([O-])=O VEALVRVVWBQVSL-UHFFFAOYSA-N 0.000 claims abstract description 8
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052582 BN Inorganic materials 0.000 claims abstract description 7
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims abstract description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000002253 acid Substances 0.000 claims abstract description 7
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 7
- 239000010703 silicon Substances 0.000 claims abstract description 7
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000000835 fiber Substances 0.000 claims abstract description 6
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims abstract description 6
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims abstract description 6
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 abstract description 21
- 230000003245 working effect Effects 0.000 abstract description 5
- 230000035939 shock Effects 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 7
- 230000035882 stress Effects 0.000 description 3
- 238000003756 stirring Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004566 building material Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000010431 corundum Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
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- Ceramic Products (AREA)
Abstract
The invention discloses a kind of 2500D/T Special castable for kiln outlet, belong to fire resisting material field.The present invention comprises the component of following weight percentage: mullite 15-25%, sillimanite 10-20%, white fused alumina 25-30%, strontium titanate powder 5-10%, zirconium silicate powder 5-8%, metallic silicon power 1-3%, boron nitride 3-5%, alumina powder 5-10%, pure calcium aluminate cement 4-6%, acid fiber by polylactic 0.2%, Sodium hexametaphosphate 99 is admixture, and add-on accounts for said components gross weight 0.1%.Invention increases the heat-shock resistance of material, high thermal resistance, volume stability and wear resistance, and there is high strength, improve the not wear-resisting of kilneye, thermal shock resistance difference etc. defect, make bring up to 2 years by existing about 10 months the work-ing life of cement kiln outlet and more than.
Description
Technical field
The present invention relates to building materials high-temperature material field, be specifically related to a kind of cement kiln outlet dedicated pouring material.
Background technology
In the new type nonaqueous cement production line development of current China rapidly, within 2013, cement production capacity has broken through 2,100,000,000 tons, and cement production capacity is seriously superfluous.Therefore, how cement company boosts productivity, and generates profit the only way that maximization is market competition.The operation factor improving cement producing line improves cement kiln production efficiency, the essential condition of earning economic benefit.But because cement kiln bears the effect of higher temperature, violent temperature variation, strong chemical erosion and harsh mechanical stress, new type nonaqueous cement production line needs the refractory materials of excellent properties more.
The kilneye working conditions of cement kiln is severe, except being subject to up to except 1300-1400 DEG C of high temperature, the impact of the thermal stresses that the secondary air of also bearing cement kiln clinker continuous discharge and grate-cooler causes and rotary kiln rotary machine stress etc., and there is conclusive impact the running period of the life-span of cement kilneye on whole production line.Thus the mould material that cement kilneye uses is had higher requirement: high-wearing feature, highly heatproof and shockproof and high strength.Kilneye mould material develops into add by the high-strength mould material of traditional high alumina the high-performance Low Cement Castable that super-fine powder and high efficiency water reducing agent are feature, existing corundum-spinel pouring material (as patent CN101407424A), the Low Cement Castable such as corundum-mullite castable (as patent CN101445379B), although improve the overall use properties of mould material, make extend to about 10 months by 4-6 month of traditional high-strength mould material of use high alumina the work-ing life of kilneye, extend the cement kiln outlet life-span, but still can not meet customer need, especially at the cement kiln that some environments for use are more severe, current kilneye mould material is not wear-resisting, easily peel off, seriously constrain the raising of cement kiln production line rate, affect the economic benefit of the cement mill man that knows clearly.
Summary of the invention
The object of the invention is effectively to improve the not wear-resisting of kilneye, falls the generation of the phenomenons such as block, provides one to have resistance to
High temperature, wear-resisting, acid and alkali-resistance, high-strength, anti-thermal shock, the Special castable for kiln outlet that can greatly extend cement kiln outlet work-ing life.
Above-mentioned technical purpose of the present invention is achieved by the following technical programs: a kind of 2500D/T Special castable for kiln outlet, and it comprises the component of following weight percentage:
Mullite 15-25%
Sillimanite 10-20%
White fused alumina 25-30%
Strontium titanate powder 5-10%
Zirconium silicate powder 5-8%
Metallic silicon power 1-3%
Boron nitride 3-5%
Alumina powder 5-10%
Pure calcium aluminate cement 4-6%
Acid fiber by polylactic 0.2%
Sodium hexametaphosphate 99 is admixture, and add-on accounts for said components gross weight 0.1%.
As an optimal way of the present invention, contained by described Special castable for kiln outlet, the weight percentage of component is:
Mullite 15-25%
Sillimanite 10-20%
White fused alumina 25-30%
Strontium titanate powder 5-10%
Zirconium silicate powder 5-8%
Metallic silicon power 1-3%
Boron nitride 3-5%
Alumina powder 5-10%
Pure calcium aluminate cement 4-6%
Acid fiber by polylactic 0.2%
Sodium hexametaphosphate 99 is admixture, and add-on accounts for said components gross weight 0.1%.
As another optimal way of the present invention, contained by described Special castable for kiln outlet, the weight percentage of component is:
Mullite 15-20%
Sillimanite 15-20%
White fused alumina 25-30%
Strontium titanate powder 8-10%
Zirconium silicate powder 6-8%
Metallic silicon power 3%
Boron nitride 5%
Alumina powder 6-8%
Pure calcium aluminate cement 6%
Acid fiber by polylactic 0.2%
Sodium hexametaphosphate 99 is admixture, and add-on accounts for said components gross weight 0.1%.
The technical indicator of 2500D/T Special castable for kiln outlet of the present invention is as follows:
In sum, the present invention compared with prior art, mould material of the present invention consists of microdilatancy mould material by materials such as mullite, sillimanite, white fused alumina, strontium titanate powder, zirconium silicate powder, alumina powders, be conducive to reducing material internal stress at high temperature, improve the heat-shock resistance of material, high thermal resistance, volume stability and wear resistance, and there is high strength, improve the not wear-resisting of kilneye, thermal shock resistance difference etc. defect, make bring up to 2 years by existing about 10 months the work-ing life of cement kiln outlet and more than.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail.This specific embodiment is only to solution of the present invention
Release, it is not the restriction to invention, and those skilled in the art can as required to this enforcement after reading this specification sheets
Example makes any amendment, as long as but be all subject to the protection of patent law in right of the present invention.
Embodiment
A kind of 2500D/T Special castable for kiln outlet, the weight percentage of component contained by it is:
Mullite 20%
Sillimanite 20%
Plate diamond spar 25%
Strontium titanate powder 10%
Zirconium silicate powder 8%
Metallic silicon power 5%
Boron nitride 3%
Alumina powder 5%
Pure calcium aluminate cement 3.5%
Acid fiber by polylactic 0.2%
Sodium hexametaphosphate 99 is admixture, and add-on accounts for said components gross weight 0.1%.
Each component used in above-described embodiment well known to a person skilled in the art product, commercially all can buy
Arrive, wherein boron nitride, the interpolation of corundum, be conducive to the wear resistance of mould material; Sillimanite has micro-expansibility; Strontium titanate, zirconium silicate is for improving the heat-shock resistance of mould material, ensure its high volume stability, the phenomenon such as avoid mould material to ftracture, to drop, add metallic silicon power, alumina powder simultaneously, substantially increase the over-all properties of mould material, make to extend to 2 years the work-ing life of mould material and more than.
Above-described embodiment 2500D/T Special castable for kiln outlet is prepared by the following method: by each component and admixture
Mixing and stirring, then add appropriate water mixing strong stirring evenly, subsequently shaping use after conventional maintenance and baking.
The physical index of above-described embodiment sees the following form:
Claims (1)
1. a 2500D/T Special castable for kiln outlet, is characterized in that, the weight percentage of component contained by it is:
Mullite 15-25%
Sillimanite 10-20%
White fused alumina 25-30%
Strontium titanate powder 5-10%
Zirconium silicate powder 5-8%
Metallic silicon power 1-3%
Boron nitride 3-5%
Alumina powder 5-10%
Pure calcium aluminate cement 4-6%
Acid fiber by polylactic 0.2%
Sodium hexametaphosphate 99 is admixture, and add-on accounts for said components gross weight 0.1%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410051456.0A CN103771888B (en) | 2014-02-16 | 2014-02-16 | A kind of 2500D/T Special castable for kiln outlet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410051456.0A CN103771888B (en) | 2014-02-16 | 2014-02-16 | A kind of 2500D/T Special castable for kiln outlet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103771888A CN103771888A (en) | 2014-05-07 |
| CN103771888B true CN103771888B (en) | 2015-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410051456.0A Active CN103771888B (en) | 2014-02-16 | 2014-02-16 | A kind of 2500D/T Special castable for kiln outlet |
Country Status (1)
| Country | Link |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107399982A (en) * | 2014-12-01 | 2017-11-28 | 山国强 | A kind of Special castable for kiln outlet |
| CN105272302A (en) * | 2015-11-03 | 2016-01-27 | 万燕杰 | Casting material for 800m<3> blast-furnace branch iron trough |
| CN107188579A (en) * | 2017-06-28 | 2017-09-22 | 长兴鑫迪耐火材料厂 | A kind of wear-resisting preformed bricks |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1229302C (en) * | 2002-09-26 | 2005-11-30 | 山东淄川特种耐火材料厂 | Al-C fireproof material for continuous casting and its production method |
| US6893992B2 (en) * | 2003-02-07 | 2005-05-17 | Allied Mineral Products, Inc | Crack-resistant insulating dry refractory |
| CN101172847B (en) * | 2007-09-30 | 2010-06-09 | 巩义市好运祥耐材有限公司 | Pouring material for producing high-temperature ceramic abrasion-proof lining body |
| CN101492304B (en) * | 2009-03-09 | 2011-11-23 | 浙江锦诚耐火材料有限公司 | Flame-proof pouring material |
| CN102329144B (en) * | 2011-09-29 | 2012-12-12 | 武汉科技大学 | Preparation method of high-strength wear-resistant pouring material combined with ceramics |
| CN102557697B (en) * | 2012-03-15 | 2013-06-05 | 长兴明天炉料有限公司 | Single-iron notch blast furnace iron storage type tapping main channel |
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| CN103771888A (en) | 2014-05-07 |
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Inventor after: Jiang Kewen Inventor before: Xu Meizi |
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Effective date of registration: 20150625 Address after: A road 400000 Chongqing Jiulongpo District of Shiqiaopu Science Park Applicant after: Chongqing Radio and TV University, Lu Xuzhi Address before: 313100, Huzhou, Zhejiang province Changxing County painting Creek Street, pheasant Chau Avenue, No. 10 Applicant before: Xu Meizi |
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Effective date of registration: 20161202 Address after: Wenchang Dazu County of Chongqing city in 402372 Pearl River Town 4 groups Patentee after: Wang Debin Address before: A road 400000 Chongqing Jiulongpo District of Shiqiaopu Science Park Patentee before: Chongqing Radio and TV University, Lu Xuzhi |
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Effective date of registration: 20171220 Address after: 6 417A room, building No. 1188, west two ring road, Shengze Town, Wujiang District, Jiangsu, Suzhou, 215228 Patentee after: Suzhou hair textile Co., Ltd. Address before: Wenchang Dazu County of Chongqing city in 402372 Pearl River Town 4 groups Patentee before: Wang Debin |