Cement rotary kiln body sealing castable

A rotary kiln and castable technology, applied in the field of cement rotary kiln, can solve the problems of reducing the refractoriness of refractory bricks, easy to peel off, low adhesion of sealing castables, etc., and achieves good weather resistance and thermal shock resistance. Anti-skinning effect

Inactive Publication Date: 2017-04-26
余贤祥
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The configuration used for the sealing castable is mainly divided into aluminate cement and adding bonding and mixing. Under high temperature and rotating state, the sealing castable and the brick body are easy to become brittle and peel off due to insufficient adhesion. The sealing castable The bonding degree is low, which reduces the refractoriness of refractory bricks, and the refractory bricks are dense and loose, easy to peel off, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Embodiment 1, a cement rotary kiln kiln body sealing castable, is characterized in that its raw materials include the following components by weight:

[0011] 500-600 parts of aluminate cement, 300-400 parts of high alumina clay, 60-90 parts of iron slag powder, 150-220 parts of kaolinite clay, 150-200 parts of high alumina cement, 15-16 parts of acrylic acid powder, 5-7 parts of silica airgel, 50-60 parts of illite stone powder, 0.2-1 part of hard calcium silicate, 4-6 parts of zirconia, 4-6 parts of zinc oxide, 18-21 parts of titanium dioxide, glycerine 2.5-3 parts of alcohol, 0.5-1 part of tributyl phosphate, and 0.3-1 part of triphenyl phosphate.

Embodiment 2

[0012] Embodiment 2, a cement rotary kiln kiln body sealing castable, is characterized in that its raw materials include the following components by weight:

[0013] 400-450 parts of aluminate cement, 400-550 parts of high alumina clay, 100-120 parts of iron slag powder, 250-300 parts of kaolinite clay, 50-800 parts of high alumina cement, 5-16 parts of acrylic acid powder, Silica airgel 15-17 parts, illite stone powder 30-40 parts, hard calcium silicate 1-2 parts, zirconia 3-5 parts, zinc oxide 5-8 parts, titanium dioxide 8-11 parts, glycerine 3.5-4 parts of alcohol, 1.5-1.8 parts of tributyl phosphate, and 0.3-0.9 parts of triphenyl phosphate.

[0014] Due to the use of aluminate cement, cobblestone powder, and iron slag powder as the main raw materials, it has excellent properties such as high and low temperature stability, and resistance to oxidation and degradation, effectively overcoming the weather resistance, aging resistance, and tensile strength of the sealing castab...

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PUM

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Abstract

A cement rotary kiln body sealing castable is characterized by comprising, by weight, aluminate cement, high-aluminum clay, iron ore slag powder, kaolin clay, high-aluminum cement, acrylic powder, silicon dioxide aerogel, illite powder, hard calcium silicate, zirconia, zinc oxide, titanium dioxide, glycerol, tributyl phosphate and triphenyl phosphate. The aluminate cement, cobblestone powder and the iron ore slag powder are adopted as main raw materials, so that the castable has excellent performances like stability at high and low temperature and resistance to oxidative degradation, and weatherability, antiaging strength and tensile strength in bonding between the sealing castable and refractory bricks are overcome effectively; a filler and related auxiliaries are added, so that the castable has the advantages of being high in heat insulativity, resistant to high temperature, high in strength and pollution-free.

Description

technical field [0001] The invention relates to the field of cement rotary kilns, in particular to a cement rotary kiln body sealing castable. Background technique [0002] At present, the structure of refractory materials in the new dry process kiln is as follows from inside to outside: sealing castable → high wear-resistant brick → MS2T magnesia spinel brick → MS1C magnesia spinel brick → MS4TC magnesia spinel brick → silicon Mo Red brick → silica brick → sealing castable. [0003] The configuration used for the sealing castable is mainly divided into aluminate cement and adding bonding and mixing. Under high temperature and rotating state, the sealing castable and the brick body are easy to become brittle and peel off due to insufficient adhesion. The sealing castable The bonding degree is low, which reduces the refractoriness of the refractory bricks, and the refractory bricks are dense and loose, easy to peel off and so on. Contents of the invention [0004] The obj...

Claims

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Application Information

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IPC IPC(8): C04B35/66
CPCC04B35/66
Inventor 余贤祥
Owner 余贤祥
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