A kind of mineral waste refractory material and its preparation process

Abstract

The invention discloses a minerals waste refractory material and a preparation technology thereof. The refractory material is prepared from the following raw materials: gangue, red mud, magnesium oxide, manganese oxide, titanium oxide, niobium pentoxide, reinforcement fiber and the like. The preparation technology comprises the following steps: mixing the above raw materials, ball-milling in anhydrous ethanol and carrying out ball-mill mixing, drying the raw materials, dry-pressing to prepare a green body of the refractory material, sintering, and naturally cooling to room temperature after sintering. Thus, the minerals waste refractory material is prepared. By using minerals waste gangue and red mud as the raw materials and by fully utilizing residual waste obtained after processing of mineral resources, the problems of environment pollution and resource wastage caused by minerals waste are solved. As modified zirconia fiber is utilized for toughening treatment of the refractory material, the prepared refractory material has good mechanical toughness and excellent thermal shock resistance. The preparation method of the refractory material is simple and is easy for large-scale production by existing equipment.

Description

technical field [0001] The invention relates to the technical field of refractory materials, in particular to a mineral waste refractory material and a preparation process 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 refractories and...

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.