Float glass flux and preparation method thereof

Abstract

The invention relates to a float glass flux, which is prepared from the following raw materials by weight: 2-2.5 parts of cerium nitrate, an appropriate amount of distilled water, 25-30 parts of calcium oxide, 10-15 parts of sodium sulfate, 2-3 parts of sodium bicarbonate, 40-45 parts of bismuth oxide, 4-5 parts of boron oxide, 3-4 parts of silica sol, and a proper amount of ammonia water. According to the present invention, the flux contains calcium oxide, bismuth oxide and boron oxide, provides a good fluxing effect, and is matched with sodium carbonate so as to provide more excellent fluxing effect compared with the single use of sodium carbonate, and the melting temperature can be reduced by more than or equal to 100 DEG C so as to provide advantages of energy saving and emission reducing; and with the process, the nano-scale cerium oxide is wrapped on the particle surface, the pores full of negative pressure inside are contained so as to adsorb the small gas seeds, and sodium sulfate is added so as to progressively clarify and quickly and completely eliminate the gas seeds.

Description

technical field [0001] The invention relates to the field of glass manufacturing, in particular to a flux for float glass and a preparation method thereof. Background technique [0002] Float glass is a method of flat glass production. In the production of float glass, a very important link is to continuously put the batch materials into the melting furnace through the feeder for melting, and heat them at high temperature to form uniform, pure and transparent glass. And meet the molding requirements, it is a continuous and single liquid phase process of glass, which is one of the main stages in the glass manufacturing process. The melting speed and the rationality of melting have a great impact on the output, quality, qualification rate, production cost and fuel consumption of glass. It has a great influence on the life of the tank and kiln. The glass melting process includes 5 stages, namely the formation of silicate, glass formation, glass clarification, glass homogenizat...

AI Technical Summary

Problems solved by technology

When fluorite is used, the glass melting process in the kiln is a high-temperature reaction, and the use of glass liquid containing fluorine will cause serious erosion of the kiln pool wall, reducing the service life of the kiln and the safety of production

Moreover, a large amount of fluoride produced in the production process is discharged into the atmosphere along with the flue gas, resulting in air pollution