Novel composite fire-resistant material and preparation method thereof

Abstract

The invention provides a novel composite fire-resistant material and a preparation method thereof. The novel composite fire-resistant material is prepared by a fire-resistant base material, silicon carbide, waste tailings slag, partially stabilized zirconia, zirconium carbide particles, acrylated amine, methylene bisacrylamide, ammonium persulfate, an organic solvent, a binding agent and a naturalplasticizer. Compare with a traditional fire-resistant material, the prepared fire-resistant material is low in pore number, high in density, small in expansion rate and linear change on reheating, good in stability, excellent in thermal shock performance and good in wear resistance.

Description

technical field [0001] The invention belongs to the technical field of refractory materials, and in particular relates to a novel composite refractory material and a preparation method thereof. Background technique [0002] In the traditional sense, refractory materials refer to inorganic non-metallic materials with a refractoriness of not less than 1580 °C. And parts of the material, and can withstand the corresponding physical and chemical changes and mechanical action. [0003] Most refractory materials are made of natural ores (such as refractory clay, silica, magnesite, dolomite), and some industrial raw materials and synthetic raw materials (such as industrial alumina, silicon carbide, synthetic mullite, Synthetic spinel, etc.) are also increasing, so there are many types of refractory materials. According to the mineral composition, refractories can be divided into silica, aluminum silicate, magnesia, dolomite, olivine, spinel, carbonaceous, zirconium-containing ref...

AI Technical Summary

Problems solved by technology

[0004] The poor mechanical toughness of inorganic non-metallic materials is a common problem in inorganic non-metallic materials and materials. As refractory materials that belong to inorganic non-metallic materials, their mechanical toughness is also poor. However, its poor mechanical toughness also affects its thermal shock resistance at high temperatures. Due to the large temperature difference between rapid cooling and rapid heating and use, refractory materials are prone to cracking and peeling under the action of thermal expansion and contraction. The situation that affects the integrity of refractory materials reduces the service life of refractory materials; at the same time, for those refractory products that need to be moved frequently, their poor mechanical toughness will greatly increase the damage rate of refractory products and affect their daily use.

[0005] The application number is CN201610172527.1, which discloses a periclase-spinel lightweight refractory material and its preparation method. The lightweight periclase-spinel with different density gradients is prepared by using the magnesia carbothermal reduction transport oxidation method. For stone refractory materials, the preparation process requires strict atmospheric conditions. The prepared material has a dense surface and a loose interior. Once the dense surface layer is damaged and the porous structure inside is in contact with the erosive medium, the material will be severely eroded and it is difficult to use it as an alternative fuel. cement rotary kiln

The application number is CN201410059476.2, which discloses a lightweight periclase-magnesia-alumina-spinel refractory material for cement rotary kiln and its preparation method. The dense magnesia aggregate is replaced by porous periclase-spinel aggregate , although the prepared lightweight periclase-magnesia-alumina-spinel refractory material has good thermal shock stability and high strength, it has large pore size, high air permeability, and poor corrosion resistance to saline-alkali and heavy metal oxides. Difficult to use in cement rotary kilns using alternative fuels