Environment-friendly cordierite-mullite kiln furniture and preparation method thereof

Abstract

Environment-friendly cordierite-mullite kiln furniture is prepared from the following raw materials in parts by weight: 25 to 35 parts of waste ceramics, 12 to 22 parts of cordierite-mullite clinker,30 to 45 parts of washing ball clay, 10 to 15 parts of andalusite, 8 to 13 parts of talcum powder, 5 to 15 parts of kyanite, 5 to 12 parts of industrial-alpha-alumina powder. According to the environment-friendly cordierite-mullite kiln furniture disclosed by the invention, a solid matter of a composite material of the environment-friendly cordierite-mullite kiln furniture is prepared by taking the waste ceramics, the cordierite-mullite clinker and the andalusite as aggregates and introducing the washing ball clay, the talcum powder, the kyanite and the industrial-alpha-alumina powder as matrix materials, so that the utilization rate of the waste ceramics is up to 25 to 35 percent, waste of resources is reduced, and the production cost of kiln furniture materials is also reduced; a prepared environment-friendly cordierite-mullite kiln furniture product has the advantages of low density, light weight, high bending strength under a normal temperature, high apparent porosity, good thermalshock stability and good energy-saving performance.

Description

technical field [0001] The invention belongs to the field of kiln furniture materials, and in particular relates to an environment-friendly cordierite-mullite kiln furniture and a preparation method thereof. Background technique [0002] For the kiln furniture used to support fired products in the kiln, it is required to have better thermal shock resistance and low energy consumption. Cordierite-mullite materials are used as high-grade materials because of their low expansion coefficient and strong high temperature resistance. Kiln furniture materials, but due to the high cost of cordierite and mullite materials and the low firing rate of synthetic materials, the production cost of cordierite-mullite kiln furniture is high, and the development is limited; The body density of some cordierite-mullite kiln furniture materials is 1.75-2.15g / cm3, the product is heavy and absorbs more heat, which consumes a lot of fuel for raw materials and kiln use. [0003] Waste ceramics are w...

AI Technical Summary

Problems solved by technology

[0002] For the kiln furniture used to support fired products in the kiln, it is required to have better thermal shock resistance and low energy consumption. Cordierite-mullite materials are used as high-grade materials because of their low expansion coefficient and strong high temperature resistance. Kiln furniture materials, but due to the high cost of cordierite and mullite materials and the low firing rate of synthetic materials, the production cost of cordierite-mullite kiln furniture is high, and the development is limited; The body density of some cordierite-mullite kiln furniture materials is 1.75-2.15g / cm3, the weight of the product is large, and the heat absorption is large, which has a great impact on the production of raw materials and the fuel consumed in the kiln.

[0003] Waste ceramics are waste materials produced in the production process of ceramics or ceramics that have lost their use value. The usual treatment methods are downgrading and landfilling, resulting in waste of materials and certain adverse effects on the environment. Further improvement is needed.