Cement rotary kiln body sealing castable

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...

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.