Fused azs bricks resistant to corrosion by low iron glass

Abstract

The invention relates to an electric fused AZS brick corrosion-resistant to low-iron glass, which belongs to the field of refractory materials. The fused AZS bricks resistant to corrosion by low-iron glass are composed of the following mass fractions: ZrO 2 : 31‑45%; SiO 2 : 9‑14%; Na 2 O: 0.6‑1.9%; doped oxide: 0.5‑16.5%, the balance being alumina. The doped oxide is Y 2 o 3 、 Ta 2 o 5 , Nb 2 o 5 Or one or more of SrO. The prepared fused AZS brick has good corrosion resistance, low porosity and high ability to withstand the stress of baddeleyite phase transformation. Compared with ordinary AZS brick, the corrosion resistance is increased by more than 30%, and the glass phase exudates rate reduced by 30%.

Description

technical field [0001] The invention relates to an electric fused AZS brick corrosion-resistant to low-iron glass, which belongs to the field of refractory materials. Background technique [0002] Low-iron glass is widely used in high-end buildings, furniture and solar energy technology, so it has developed rapidly in recent years. The structure of the furnace for producing this type of glass is basically the same as that of ordinary float glass furnaces. Usually, the erosion of fused AZS pool wall bricks in float glass furnaces is most serious at the liquid level, and the erosion below the liquid level gradually weakens. However, in low-iron glass furnaces, the glass liquid penetrates due to the low iron content The heat is strong, the temperature difference between the upper and lower sides of the glass liquid is small, and the erosion of the pool wall bricks is holistic, and the erosion of the upper and lower ends of the pool wall bricks is extremely serious. In addition,...

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Problems solved by technology

However, the above schemes are all measures aimed at the erosion of brick joints, and there is no corresponding solution for how to improve the overall erosion of fused AZS bricks

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