Efficient energy-saving refractory material and preparation method thereof

Abstract

The invention provides an efficient energy-saving refractory material and a preparation method thereof. The efficient energy-saving refractory material is prepared from the following components: magnesium oxide, calcium oxide, modified zirconia fiber, high silicon gangue, high aluminum red mud, a binder and a plasticizer. The refractory material prepared by the method has good mechanical strengthand excellent fire resistance, and has a simple preparation method and is easy to produce on the existing equipment in large scale.

Description

technical field [0001] The invention belongs to the technical field of refractory materials, and in particular relates to a high-efficiency and energy-saving 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, carbonaceo...

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] Application number CN2007103045733 discloses a high-strength and low-thermal-conduction energy-saving material, which uses microporous mullite as aggregate and adds activated alumina micropowder, silica micropowder, high-temperature cement and bauxite fine powder refractory products, which have thermal conductivity Small, less heat loss, but the content of alumina in the refractory material reaches 52%-81%, which makes the refractory material weak in slagging resistance, corrosion resistance and thermal shock resistance, so it is suitable for steelmaking furnaces, metallurgical Poor applicability of kiln and other equipment

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. It is difficult to be used in cement rotary kilns using alternative fuels, and the preparation process consumes a lot of energy, so it is not suitable for popularization of production