Energy-saving light cordierite-mullite kiln furnace material, kiln furnace and preparation method of material

Abstract

The invention relates to an energy-saving light cordierite-mullite kiln furnace material, a kiln furnace and a preparation method of the material, and belongs to the field of kiln furnace materials. The preparation method of the kiln furnace material comprises the following steps of: preparing kiln furnace material solid by using floating beads, aquamarine and mullite as aggregates, using magnesium powder, steatite, alumina and clay as substrate materials and adding additives yellow dextrin and wood powder; adding water to the solid for stirring to obtain a mixture, wherein the floating balls are very small in volume density, and are light and hollow materials, so that the product is high in porosity and small in volume density. Besides, the wood powder is evaporated by being fired at high temperature to form more gap structures, so that the volume density of the product is further reduced, and the material is light and energy-saving. During the whole proportioning process, the final material composition is consistent with that of the cordierite-mullite kiln furnace material, and the firing temperature is also kept consistent, so that the product performances are kept to be excellent and not lower than those of the cordierite-mullite material.

Description

technical field [0001] The invention relates to a kiln furniture material, in particular to an energy-saving light cordierite-mullite kiln furniture material, kiln furniture prepared from the material and a preparation method for the kiln furniture. Background technique [0002] As kiln furniture used to support fired products, it is required to be able to withstand rapid cooling and rapid heating, that is, to have good thermal shock resistance and low energy consumption. After continuous trials by many manufacturers, cordierite kiln furniture has gradually shown its unique advantages. Cordierite is the mineral with the lowest coefficient of thermal expansion among the known silicate minerals, so products with cordierite as the main crystal phase have good resistance to rapid cooling and rapid heating. [0003] However, the cordierite kiln furniture currently on the market seems to have different effects due to different manufacturers. The cordierite-mullite lightweight re...

AI Technical Summary

Problems solved by technology

However, the body density of the cordierite-mullite kiln furniture materials that are commonly available at present is 1.75-2.15g / cm 3 , the weight of the product is large, the heat absorption will be more, and the consumption of raw materials and fuel will be greater

However, some other lightweight materials have high expansion coefficient, poor thermal shock stability, and low strength, so they are not suitable for kiln furniture materials.

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