Forsterite heat light material and preparation method thereof

Abstract

The invention relates to a lightweight forsterite material and a preparation method thereof. The invention adopts a technical proposal that the method comprises the following steps: firstly mixing 10 to 35 percent of carbonate powder, 10 to 35 percent of chlorate powder and 30 to 80 percent of crude steatite powder by weight, admixing 3 to 10 percent of bonding agent by weight of the mixture into the mixture, stirring the mixture for 5 to 25 minutes, and pressing and molding the mixture; drying the mixture for 12 to 36 hours at a temperature of between 60 and 110 DEG C or naturally drying the mixture for 24 to 48 hours indoors; and then sintering the dried mixture for 2 to 6 hours at a temperature of between 800 and 1,400 DEG C in the air, naturally cooling the sintered mixture and soaking the cooled mixture for 24 to 48 hours by water, and finally drying the soaked mixture for 12 to 36 hours at a temperature of between 60 and 110 DEG C or naturally drying the soaked mixture for 24 to 48 hours indoors to obtain the lightweight forsterite material. The preparation method has the characteristics of rich raw material resources, low production cost and easy industrialized production. The prepared material is used as an insulating material particularly suitable for industrial thermal equipment at a temperature of below 1,200 DEG C, and can reduce heat loss, reduce heat pollution of environment, can save energy and reduce consumption.

Description

technical field [0001] The invention belongs to the technical field of refractory and thermal insulation materials. In particular, it relates to a method for preparing forsterite light material from talc. Background technique [0002] Forsterite light-weight insulation material has high strength, low bulk density, high temperature resistance and excellent thermal stability. It is a new type of high-temperature industrial thermal equipment, especially non-ferrous metal and steel smelting, cement and glass production equipment Intensive and lightweight thermal insulation materials, replacing the existing low-strength lightweight alumina hollow sphere materials, lightweight high-alumina materials, lightweight forsterite thermal insulation materials, lightweight clay, diatomite materials and other thermal insulation materials, which is conducive to reducing The heat loss of these equipment during the production process can reduce the thermal pollution of the equipment to the su...

AI Technical Summary

Problems solved by technology

Therefore, the cost is low, the degree of industrialization is low, or the forsterite light material prepared by other methods has low strength, low service temperature and high bulk density