Porous foam glass ceramic brick and production method thereof

Abstract

The invention discloses a porous foam glass ceramic brick and a production method thereof. The porous foam glass ceramic brick is made from, by weight, 40-60 parts of fly ash, 10-30 parts of red mud,5-10 parts of glass waste, 5-10 parts of feldspar, 10-15 parts of a foaming agent, and 3-5 parts of a fluxing agent. The above materials are subjected to ball milling, the milled materials are screened to 200 mesh and are mixed well; the mixture is subjected to heap roasting and cutting to obtain the porous foam glass ceramic brick. The fly ash, red mud, glass waste are used as main materials to produce the porous foam glass ceramic brick; the production method is simple and low in cost; industrial wastes can be greatly consumed and turned into wealth, resources are saved, and the environmentis protected.

Description

technical field [0001] The invention relates to the field of thermal insulation materials, in particular to a porous foam glass-ceramic brick and a preparation method thereof. Background technique [0002] Porous foam glass is an inorganic non-metallic material with many pores. By utilizing the characteristics of the pore structure and surface area in the product, combined with its own material, it can achieve the electrical, thermal, magnetic, optical and other physical and chemical properties required for application. performance, so as to prepare materials with thermal insulation, filtration and adsorption, sound absorption and sound insulation, biomimetic sensing, osmotic separation, etc. [0003] Porous foam glass brick is a kind of porous material, which is mainly prepared by high temperature foaming. The main foaming agents used are: sulfate, carbonate, hydroxide, cyanide, etc. The existing porous foam glass bricks are mainly used by one-component blowing agent or th...

AI Technical Summary

Problems solved by technology

Existing porous foam glass bricks are mainly used by one-component blowing agent or the combination of these one-component blowing agents, such as: CaCO 3 , SiC, MgCO 3 , CaSO 4 etc., such as patent application CN102617180A, using feldspar, glass powder, and clay as the main raw materials to generate SiO and CO through high-temperature oxidation of SiC 2 Foaming to obtain closed-cell porous foam glass bricks with good heat insulation effect; another example is the patent application CN101955371A, which uses high-alumina refractory bricks, hard clay, and feldspar as the main raw materials. 4 pyrolysis of SO 3 High-temperature oxidation of gas and SiC micropowder to generate SiO and CO 2 Gas compound foaming can obtain closed porous foam glass bricks with a porosity as high as 75% and sufficient strength. The cost of the foaming agent SiC used is relatively high, and CaSO 4 will discharge SO 2 Wait for gas