A kind of opacity glass with liquid blast furnace slag as main raw material and preparation method thereof

Abstract

The invention discloses emulsion opal glass using liquid blast furnace molten slag as a main raw material. The emulsion opal glass is characterized in that the raw materials of the emulsion opal glass include the liquid blast furnace molten slag and auxiliary materials, the mass ratio of the liquid blast furnace molten slag to the auxiliary materials is 100 to (100-120). In the chemical composition of the emulsion opal glass obtained by mixing and melting the liquid blast furnace molten slag and the auxiliary materials, by mass, SiO2 accounts for 40-50%, Al2O3 accounts for 5-9%, CaO accounts for 15-24%, MgO accounts for 2-8%, Na2O accounts for 1-6%, K2O accounts for 3-9%, Fe2O3 accounts for 0.2-3%, TiO2 accounts for 0.5-1.5%, MnO accounts for 0.2-0.6%, and Na2SiF6 accounts for 6-18%. The heat energy brought by high temperature of the liquid blast furnace molten slag is fully utilized, a large amount of energy consumption is reduced, the problem that a large amount of blast furnace slag is abandoned and accumulated is effectively solved, the obtained emulsion opal glass is milk-white and has the characteristics of high density and strength, the density is 2.9-3.2 g / cm<3>, and the flexural strength is up to 90-120 MPa.

Description

technical field [0001] The invention relates to opacified glass with liquid blast furnace slag as the main raw material and a preparation method thereof, belonging to the field of building decoration materials. Background technique [0002] Blast furnace slag is the main by-product of pig iron smelting. It is composed of soil components in iron ore (quartz, clay minerals, carbonate, apatite, etc.) and limestone (or dolomite) ℃ ~ 1600 ℃ high temperature into a molten state. When the furnace temperature reaches 1400°C to 1600°C, the flux reacts with the iron ore to generate pig iron and blast furnace slag. In recent years, my country's blast furnace iron industry has developed rapidly, and the annual output of rough blast furnaces is as high as 800 million tons, accounting for nearly half of the world's total output of rough blast furnaces. Most blast furnace iron companies transport high-temperature slag to large slag dumps after a certain cooling treatment, thus occupying ...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an opacified glass with liquid blast furnace slag as the main raw material and its preparation method in view of the above-mentioned deficiencies in the prior art, making full use of the heat energy brought by the high temperature of liquid blast furnace slag , and effectively alleviate the problem of massive waste of blast furnace slag in my country