Light thermal insulation sprayed material

Abstract

The invention discloses a light thermal insulation sprayed material. The sprayed material comprises expanded perlite, light low-aluminum aggregate, raw clay, high-aluminum cement, micro silicon powder, a compound additive and water glass, wherein the compound additive consists of brownmillerite and slaked lime. Compared with the traditional sprayed material, the sprayed material has the advantages that: the rebound rate is reduced from 14 percent to 8 percent, the adhesion rate of the sprayed material is greatly improved, and the utilization rate of the material is improved.

Description

technical field [0001] The invention relates to refractory materials for kilns. Background technique [0002] At the 2009 Copenhagen World Climate Conference, China decided that by 2020, my country's carbon dioxide emissions per unit of GDP would drop by 40%-45% compared with 2005. However, our country is in the critical period of building a well-off society in an all-round way, and is in an important stage of accelerated industrialization and urbanization. The tasks of developing the economy and improving people's livelihood are very heavy. Under the circumstance that the demand for energy will continue to grow, the control of greenhouse gas emissions will face enormous pressure and special difficulties, and the realization of the above-mentioned action goals will require arduous efforts. Therefore, strengthening the research on energy-saving materials and improving energy utilization efficiency is the key to achieve the above goals. Lightweight refractories are an import...

AI Technical Summary

Problems solved by technology

The castables used in the past generally have the disadvantages of high bulk density, high thermal conductivity and low strength, especially they cannot adapt to the dual atmosphere of acid and alkali resistance.