Acid-resistant, fire-resistant and thermal-insulation material high in comprehensive performance

Abstract

The invention relates to the technical field of materials, in particular to an acid-resistant, fire-resistant and thermal-insulation material high in comprehensive performance. The material is prepared from 90%-95% of silica bricks, 5%-10% of clay, 3%-10% of caprolactam, 1%-2.5% of hydroxy propyl cellulose and 1%-2.5% of hydroxyethyl cellulose. Accordingly, compared with the prior art, the preparation method is simple, the practicability of a finished product is good, technological operation is easy and convenient, the acid-resistant slag erosion capacity is high, refractoriness under load ishigh, the volume does not shrink after repeated calcination and even slightly swells, and the material is mainly used for thermal equipment such as coke ovens, glass melting furnaces and acid open hearth furnaces.

Description

technical field [0001] The invention relates to the field of material technology, specifically an acid-resistant refractory and thermal insulation material with high comprehensive performance. Background technique [0002] Inorganic non-metallic materials with a refractoriness higher than 1580°C. Refractoriness refers to the Celsius temperature at which a refractory conical sample can resist high temperature without softening and melting without load. The emergence of refractory materials accompanied by high-temperature technology, roughly originated in the middle of the Bronze Age. During the Eastern Han Dynasty in China, clay refractory materials were used as kiln materials and saggers for firing porcelain. At the beginning of the 20th century, refractory materials were developed in the direction of high-purity, high-density and ultra-high-temperature products, and at the same time, amorphous refractory materials and refractory fibers that did not require firing at all a...

AI Technical Summary

Problems solved by technology

In modern times, with the development of atomic energy technology, space technology, and new energy technology, refractory materials with comprehensive and excellent properties such as high temperature resistance, corrosion resistance, thermal shock resistance, and erosion resistance have been applied. However, refractory materials currently on the market are susceptible to acid , Alkaline slag erosion, poor thermal shock resistance, high cost, limited use