CN104355643B - A kind of 5000T cement kiln coal injection pipe dedicated pouring material - Google Patents
A kind of 5000T cement kiln coal injection pipe dedicated pouring material Download PDFInfo
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- CN104355643B CN104355643B CN201410711037.5A CN201410711037A CN104355643B CN 104355643 B CN104355643 B CN 104355643B CN 201410711037 A CN201410711037 A CN 201410711037A CN 104355643 B CN104355643 B CN 104355643B
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Abstract
The object of this invention is to provide a kind of 5000T cement kiln coal injection pipe dedicated pouring material, its institutional framework that can improve current castable existence is inhomogeneous, and having solved application property castable segregation poor and that come by application property difference band, pore is many, the defect that gas cell distribution is inhomogeneous. By above-mentioned measure, can effectively improve the not wear-resisting of kilneye, fall piece, the not phenomenon such as anti-erosion, can significantly extend kilneye service life of cement kiln.
Description
Technical field
The present invention relates to building materials and use high-temperature material field, be specifically related to a kind of 5000T cement kiln coal injection pipe dedicated pouring material.
Background technology
Rapidly, cement production capacity is seriously superfluous in China's new type nonaqueous cement production line development at present. Therefore, cement production enterprise improves production of units efficiency, reduce production costs, and be to generate profit maximized only way. And the running rate that improves cement producing line is the essential condition that improves cement kiln production efficiency. But the life-span of cement kiln coal injection pipe is on there being important impact the service cycle of whole production line. The coal injection pipe service condition of cement kiln is severe, except bearing up to high temperature in 1400 DEG C of kilns, also bear washing away of cement kiln clinker, the thermal stress that the Secondary Air that grate-cooler comes causes, chlor-alkali corrodes the impact that it is brought, thereby the combination property of the castable that cement kiln coal injection pipe is used is had higher requirement. The service life 3 of current common coal injection pipe, by 8 months etc. such life-span still can not meet client's demand. The main cause that affects its service life is current castable refractory mechanical property, hot property is poor, and properties is unstable, simultaneously the also not chemical erosion of water resistant mud kiln atmosphere of cement kiln coal injection pipe, restrict the raising of cement kiln production line rate, affected the economic benefit of cement producer.
In addition the shortcoming such as current coal injection pipe castable exists the poor defect of workability, easily causes castable segregation, and pore is many, and gas cell distribution is inhomogeneous, thereby the service life of also having reduced coal injection pipe.
Summary of the invention
The object of this invention is to provide a kind of coal injection pipe castable, its institutional framework that can improve current castable existence is inhomogeneous, and has solved application property castable segregation poor and that come by application property difference band, and pore is many, the defect that gas cell distribution is inhomogeneous. By above-mentioned measure, can effectively improve the not wear-resisting of coal injection pipe, fall piece, the not phenomenon such as anti-erosion, can significantly extend coal injection pipe service life of cement kiln.
Above-mentioned technical purpose of the present invention is achieved by the following technical programs: a kind of cement kiln coal injection pipe dedicated pouring material, is characterized in that: described component comprises gahnite, synthetic moissanite, brown corundum, strontium titanates powder, carbonic acid zirconium powder, andalusite powder, silicic acid zinc powder, alumina powder, pure calcium aluminate cement, terbium oxide.
As preferentially, described component also comprises C5H10N6O2, heat-resistant steel fiber, polyethers polycarboxylic acids.
Further, described component also comprises Sulfonated Copolymer of Styrene and Maleic Anhydride and Tc2O7One or both.
Preferential, described a kind of cement kiln coal injection pipe dedicated pouring material, is characterized in that: the percetage by weight of described component is:
Gahnite 15-25%
Synthetic moissanite 10-20%
Palm fibre corundum 25-30%
Strontium titanates powder 5-10%
Carbonic acid zirconium powder 5-8%
Andalusite powder 1-3%
Zinc silicate 3-5%
Alumina powder 5-10%
Pure calcium aluminate cement 4-6%
Terbium oxide 1-2%
Additional C5H10N6O20.2%
Additional heat-resistant steel fiber 0.5%
Additional polyethers polycarboxylic acids 0.1%
Additional Sulfonated Copolymer of Styrene and Maleic Anhydride addition is 0.05%
Additional Tc2O7Addition be 0-0.05%.
Preferential, the percetage by weight of described component is:
Gahnite 15%
Synthetic moissanite 20%
Palm fibre corundum 30%
Strontium titanates powder 10%
Carbonic acid zirconium powder 8%
Andalusite powder 2%
Zinc silicate 3%
Alumina powder 5%
Pure calcium aluminate cement 6%
Terbium oxide 1%
Additional C5H10N6O20.2%
Additional heat-resistant steel fiber 0.5%
Additional polyethers polycarboxylic acids 0.1%
Additional Sulfonated Copolymer of Styrene and Maleic Anhydride addition is 0.05%.
Preferential，The percetage by weight of described component is:
Gahnite 20%
Synthetic moissanite 15%
Palm fibre corundum 30%
Strontium titanates powder 10%
Carbonic acid zirconium powder 8%
Andalusite powder 2%
Zinc silicate 3%
Alumina powder 5%
Pure calcium aluminate cement 5%
Terbium oxide 2%
Additional C5H10N6O20.2%
Additional heat-resistant steel fiber 0.5%
Additional polyethers polycarboxylic acids 0.1%
Additional Sulfonated Copolymer of Styrene and Maleic Anhydride addition is 0.05%
Additional Tc2O7Addition be 0.05%.
As preferentially, alumina content >=99% of described gahnite; Carborundum content >=97% of synthetic moissanite; Zirconium carbonate >=97%, the granularity of zirconium carbonate is≤10 μ m; Zinc silicate content >=95%; Strontium titanates content >=95%; Andalusite aluminium content >=57%; Terbium oxide content >=98%.
Compared with prior art, advantage of the present invention is: castable is made up of the materials such as gahnite, synthetic moissanite, brown corundum, strontium titanates powder, carbonic acid zirconium powder, andalusite, zinc silicate, terbium oxide, alumina powder and Extra Section, the present invention has improved the thermal shock resistance of cement kiln coal injection pipe, erosion-resisting characteristics, resistance to elevated temperatures, anti-wear performance, obtain good workability, improve the erosion-resisting characteristics of castable self, obtain a kind of well behaved castable, extended to more than 2 times the service life of coal injection pipe prepared by castable.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail. This specific embodiment is only explanation of the invention; it is not the restriction to invention; those skilled in the art are reading after this description and can make any amendment to the present embodiment as required, but as long as within the scope of claim of the present invention, are all subject to the protection of Patent Law.
Embodiment 1
A kind of 5000T cement kiln coal injection pipe dedicated pouring material, the percetage by weight of its contained component is:
Gahnite 25%
Synthetic moissanite 20%
Palm fibre corundum 25%
Strontium titanates powder 8%
Carbonic acid zirconium powder 5%
Andalusite powder 1%
Zinc silicate 3%
Alumina powder 5%
Pure calcium aluminate cement 6%
Terbium oxide 2%
C5H10N6O20.2%
Heat-resistant steel fiber 0.5%
Sulfonated Copolymer of Styrene and Maleic Anhydride 0.05%
Polyethers polycarboxylic acids 0.1%
Embodiment 2
A kind of 5000T cement kiln coal injection pipe dedicated pouring material, the percetage by weight of its contained component is:
Gahnite 15%
Synthetic moissanite 20%
Palm fibre corundum 30%
Strontium titanates powder 10%
Carbonic acid zirconium powder 8%
Andalusite powder 2%
Zinc silicate 3%
Alumina powder 5%
Pure calcium aluminate cement 6%
Terbium oxide 1%
C5H10N6O20.2%
Heat-resistant steel fiber 0.5%
Sulfonated Copolymer of Styrene and Maleic Anhydride 0.05%
Polyethers polycarboxylic acids 0.1%.
Embodiment 3
A kind of 5000T cement kiln coal injection pipe dedicated pouring material, the percetage by weight of its contained component is:
Gahnite 20%
Synthetic moissanite 15%
Palm fibre corundum 30%
Strontium titanates powder 10%
Carbonic acid zirconium powder 8%
Andalusite powder 2%
Zinc silicate 3%
Alumina powder 5%
Pure calcium aluminate cement 5%
Terbium oxide 2%
C5H10N6O20.2%
Heat-resistant steel fiber 0.5%
Sulfonated Copolymer of Styrene and Maleic Anhydride 0.05%
Polyethers polycarboxylic acids 0.1%
Tc2O70.05。
In above-described embodiment, each component used is to well known to a person skilled in the art product, on market, all can buy, and the wherein interpolation of synthetic moissanite, strontium titanates, brown corundum, steel fibre, is conducive to the wearability of castable, thermal shock resistance; Andalusite has micro-expansibility; The introducing of zirconium carbonate makes castable in use obtain good performance, zirconium carbonate is decomposed to form the oxide of high activity zirconium with superperformance, and the micropore forming in decomposable process, all be conducive to improve the thermal shock resistance of material, improve corrosion resistance, avoid the phenomenons such as castable ftractures, drops; Zinc silicate, alumina powder simultaneously, terbium oxide, in use can progressively react, and generates the good original position aluminium of performance gahnite, improves the structural homogenity of castable, improves the anti acid alkali performance energy of castable, chemical resistance of concrete performance. The Tc adding2O7, Sulfonated Copolymer of Styrene and Maleic Anhydride, polyethers polycarboxylic acids can improve the operable time of castable, the distribution of the pore while improving castable construction, mobile performance, according to temperature difference, can suitably regulate addition; The C adding5H10N6O2Produce the micro-pore being communicated with, the steam producing while making to toast is easily discharged. Adopt after above-mentioned scheme, can obtain a kind of well behaved castable, extended to more than 2 times the service life of coal injection pipe prepared by castable.
The cement kiln coal injection pipe dedicated pouring material of above-described embodiment 1-3 is prepared by the following method: by each component mixing and stirring, then add appropriate water mixing strong stirring even, more then moulding is used after conventional maintenance and baking.
The physical index of above-described embodiment 1-3 relatively sees the following form:
Claims (1)
1. a 5000T cement kiln coal injection pipe dedicated pouring material, described castable is made up of the component of following percentage by weight:
Gahnite 20%
Synthetic moissanite 15%
Palm fibre corundum 30%
Strontium titanates powder 10%
Carbonic acid zirconium powder 8%
Andalusite powder 2%
Zinc silicate 3%
Alumina powder 5%
Pure calcium aluminate cement 5%
Terbium oxide 2%
Additional C5H10N6O20.2%
Additional heat-resistant steel fiber 0.5%
Additional Sulfonated Copolymer of Styrene and Maleic Anhydride 0.05%
Additional polyethers polycarboxylic acids 0.1%
Additional Tc2O70.05%。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410711037.5A CN104355643B (en) | 2014-12-01 | 2014-12-01 | A kind of 5000T cement kiln coal injection pipe dedicated pouring material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410711037.5A CN104355643B (en) | 2014-12-01 | 2014-12-01 | A kind of 5000T cement kiln coal injection pipe dedicated pouring material |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610160679.XA Division CN105819873A (en) | 2014-12-01 | 2014-12-01 | Special castable for 5000T cement kiln coal-injection ducts |
| CN201610160680.2A Division CN105819874A (en) | 2014-12-01 | 2014-12-01 | Castable special for 5000T cement kiln coal-injection duct |
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| Publication Number | Publication Date |
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| CN104355643A CN104355643A (en) | 2015-02-18 |
| CN104355643B true CN104355643B (en) | 2016-05-04 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106045545A (en) * | 2016-08-01 | 2016-10-26 | 张婷 | Castable for industrial kiln |
| CN106220202A (en) * | 2016-08-01 | 2016-12-14 | 张婷 | A kind of Zirconium corundum refractory castable |
| CN106316419A (en) * | 2016-08-01 | 2017-01-11 | 张婷 | Refractory castable used in reducing atmosphere |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102584296A (en) * | 2012-02-29 | 2012-07-18 | 浙江锦诚耐火材料有限公司 | Special castable for kiln outlet |
| CN103755377A (en) * | 2014-02-14 | 2014-04-30 | 汤炼芳 | Branch iron runner pouring material of 850m<3> blast furnace |
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2014
- 2014-12-01 CN CN201410711037.5A patent/CN104355643B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102584296A (en) * | 2012-02-29 | 2012-07-18 | 浙江锦诚耐火材料有限公司 | Special castable for kiln outlet |
| CN103755377A (en) * | 2014-02-14 | 2014-04-30 | 汤炼芳 | Branch iron runner pouring material of 850m<3> blast furnace |
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| CN104355643A (en) | 2015-02-18 |
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Inventor after: Guo Jinfeng Inventor before: Zhang Ting |
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Effective date of registration: 20160406 Address after: Yongchun County of Quanzhou City, Fujian province 362000 Peach Town Tao Xi Road No. 320 Applicant after: YONGCHUN COUNTY YONGRONG INFORMATION TECHNOLOGY CO., LTD. Address before: Stone bridge town Haining city Jiaxing city Zhejiang province 314400 No. 26 Applicant before: Zhang Ting |
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Effective date of registration: 20170718 Address after: 226200, No. 98, victory village, cooperation Town, Qidong City, Jiangsu, Nantong Patentee after: Qidong long fine refractory material Co., Ltd. Address before: Yongchun County of Quanzhou City, Fujian province 362000 Peach Town Tao Xi Road No. 320 Patentee before: Yongchun County Yongrong Information Technology Co., Ltd. |