Self-flow refractory castable

Abstract

The invention relates to a self-flow refractory castable which is prepared from the following raw materials in parts by weight: 10-25 parts of kyanite, 10-20 parts of wollastonite, 10-20 parts of caustic-burned magnesia powder, 5-10 parts of alumina hollow balls, 5-10 parts of zirconium oxide hollow balls, 10-20 parts of alumina micro powder, 5-10 parts of silicon dioxide micropowder, 5-10 parts of aluminum phosphate and 5-10 parts of graphite, wherein kyanite, wollastonite, caustic-burned magnesia powder, alumina hollow balls and zirconium oxide hollow balls are aggregates; alumina micro powder, silicon dioxide micropowder, aluminum phosphate and graphite are powder.

Description

Technical field [0001] The invention belongs to the technical field of refractory materials, and particularly relates to a refractory self-flowing castable. Background technique [0002] Self-flowing castables are a common type of material in the refractory industry. Due to low capital investment, simple construction, and strong operability, they have been widely used in the metallurgical industry. However, the existing refractory self-flowing castables have the disadvantages of poor fluidity and large amount of water due to improper material selection, unreasonable particle matching, and improper addition of additives. In the construction process, in order to improve the fluidity of the self-flowing castable, more water needs to be added. As a result, the castable has a large porosity, low strength, poor thermal shock stability and poor chemical resistance, which reduces the pouring The service life of the material entity. Summary of the invention [0003] In view of this, in v...

AI Technical Summary

Problems solved by technology

However, the existing refractory self-flowing castables have the disadvantages of poor fluidity and large water addition due to improper material selection, unreasonable particle mix, and inappropriate addition of admixtures.

In the construction process, in order to improve the fluidity of self-flowing castables, more water needs to be added, resulting in the consequences of large porosity, low strength, poor thermal shock stability and poor chemical corrosion resistance of castables, which reduces the pouring capacity. The service life of the material entity