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A special castable for 5000t cement kiln coal injection pipe

The technology of castable and coal injection pipe is applied in the field of high-temperature materials for building materials, which can solve the problems of poor workability, segregation of castables, and many pores, etc., and achieve the effects of improving corrosion resistance, improving thermal shock resistance and prolonging service life.

Active Publication Date: 2016-05-04
启东久精耐火材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a castable for coal injection pipe, which can improve the uneven structure of the current castable, and solve the poor workability and the segregation of the castable caused by the poor workability, many pores, and uneven distribution of pores Defects

Method used

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  • A special castable for 5000t cement kiln coal injection pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] A special castable for 5000T cement kiln coal injection pipe, the weight percentage of the components contained in it is:

[0060] Zinc-aluminum spinel 25%

[0061] Synthetic moissanite 20%

[0062] Brown fused alumina 25%

[0063] Strontium titanate powder 8%

[0064] Zirconium carbonate powder 5%

[0065] Andalusite powder 1%

[0066] Zinc silicate 3%

[0067] Aluminum oxide powder 5%

[0068] Pure calcium aluminate cement 6%

[0069] Terbium oxide 2%

[0070] C 5 h 10 N 6 o 2 0.2%

[0071] Heat-resistant steel fiber 0.5%

[0072] Sulfonated styrene-maleic anhydride copolymer 0.05%

[0073] Polyether polycarboxylic acid 0.1%

Embodiment 2

[0075] A special castable for 5000T cement kiln coal injection pipe, the weight percentage of the components contained in it is:

[0076] Zinc-aluminum spinel 15%

[0077] Synthetic moissanite 20%

[0078] Brown fused alumina 30%

[0079] Strontium titanate powder 10%

[0080] Zirconium carbonate powder 8%

[0081] Andalusite powder 2%

[0082] Zinc silicate 3%

[0083] Aluminum oxide powder 5%

[0084] Pure calcium aluminate cement 6%

[0085] Terbium oxide 1%

[0086] C 5 h 10 N 6 o 2 0.2%

[0087] Heat-resistant steel fiber 0.5%

[0088] Sulfonated styrene-maleic anhydride copolymer 0.05%

[0089] Polyether polycarboxylic acid 0.1%.

Embodiment 3

[0091] A special castable for 5000T cement kiln coal injection pipe, the weight percentage of the components contained in it is:

[0092] Zinc aluminum spinel 20%

[0093] Synthetic moissanite 15%

[0094] Brown fused alumina 30%

[0095] Strontium titanate powder 10%

[0096] Zirconium carbonate powder 8%

[0097] Andalusite powder 2%

[0098] Zinc silicate 3%

[0099] Aluminum oxide powder 5%

[0100] Pure calcium aluminate cement 5%

[0101] Terbium oxide 2%

[0102] C 5 h 10 N 6 o 2 0.2%

[0103] Heat-resistant steel fiber 0.5%

[0104] Sulfonated styrene-maleic anhydride copolymer 0.05%

[0105] Polyether polycarboxylic acid 0.1%

[0106] Tc 2 o 7 0.05.

[0107] The components used in the above examples are products well known to those skilled in the art and can be purchased in the market. The addition of synthetic moissanite, strontium titanate, brown corundum, and steel fibers is beneficial to the wear resistance of the castable andalusite has micro-e...

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Abstract

The purpose of the present invention is to provide a special castable for 5000T cement kiln coal injection pipe, which can improve the uneven structure of the current castable, and solve the poor construction and the castable segregation and many pores caused by the poor construction. A defect with uneven distribution of pores. Through the above measures, the phenomenon of non-abrasion resistance, block loss and corrosion resistance of the kiln mouth can be effectively improved, and the service life of the kiln mouth of the cement kiln can be greatly extended.

Description

technical field [0001] The invention relates to the field of high-temperature materials for building materials, in particular to a special castable for 5000T cement kiln coal injection pipes. Background technique [0002] At present, my country's new dry process cement production line is developing rapidly, and the cement production capacity has been severely oversupplied. Therefore, it is the only way for cement production enterprises to increase unit production efficiency and reduce production costs to maximize profits. And improving the operation rate of the cement production line is an important condition for improving the production efficiency of the cement kiln. However, the life of the cement kiln coal injection pipe has an important impact on the operation cycle of the entire production line. The coal injection pipe of the cement kiln is used in harsh conditions. In addition to the high temperature in the kiln up to 1400 ℃, it also bears the scour of the cement kil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66
Inventor 郭金锋
Owner 启东久精耐火材料有限公司
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