Zircon refractory brick for sale is also known as zirconia brick, it is made from stable calcined zircon. High temperature performance of zircon bricks are very good, their melting point of zircon brick is as high as 2700℃ and they also have good corrosion resistance. Zircon bricks are mainly used as lining refractory of glass furance, such as working ends and feeder channels in melting tanks. Zircon refractory bricks can also serves as separation layer between silica and fusion cast materials in order to prevent contact reactions. Zirconia based bricks include zirconia corundum brick, zirconia mullite brick, zirconia bubble brick, zirconia chrome corundum brick, etc.
High-density, low-porosity zircon bricks are generally made of fine zircon powder, which is cast or isostatically pressed into large-sized blanks, and then cut, ground, and processed into zircon products after high-temperature firing. The zircon raw material for isostatic pressing can be zircon concentrate with a particle size of <0.125 mm and a reasonable particle size distribution. It can also be a zircon granulated material prepared by spray drying a slurry consisting of finely ground zircon concentrate and water, a binder, a dispersant, etc.
Characteristics and Application of Dense Zircon Bricks
Dense zircon products have low porosity, dense structure, high-temperature strength, good resistance to glass liquid penetration and erosion, and will not form defects such as bubbles, stones, and scars in the glass. The resistance to glass liquid erosion of zircon products is second only to dense chromium oxide products and has excellent mechanical properties and thermal shock resistance. Compared with dense chromium oxide products, zircon products have lower costs.
Dense zircon products are widely used as pool walls and bottom materials for glass tank kilns and as backing bricks for dense chromium oxide bricks. Zircon is also often used in combination with mullite bricks as a refractory material for the upper part and flue of the tank kiln.
Zircon Fire Brick Parameters
Index parameters of dense zircon bricks for glass melting furnace. Dense zircon bricks for glass-melting furnaces are divided into two grades: high-density ZS-G and dense ZS-Z. The physical and chemical performance requirements of JC/T 495-2013 for dense zircon bricks for glass melting furnaces are shown in the table below.
Physical and Chemical Indicators of Dense Zircon Bricks for Glass Melting Furnaces
Glass contact parts of alkali free or low-alkali glass melting furnace.
Soda-lime glass kiln as neutral brick, skew brick.
Paving and sub paving, channel blocks, sidewall of glass fiber furnace and floating glass tanks.
Upper area of flame space or frequent thermal shock region, lining of alkali-free or low-alkali glass, sodium-calcium glass, boron-silicate glass, ceramic glass, lead glass, and other glass melting furnace.
Transition region between upper roof silica brick and fused zirconia-corundum brick or fused zirconia-mullite brick.
Transition region between silica brick and magnesia brick, crown, burner, thermal couple, peephole, etc.
Glass Kiln Refractory Material Rongsheng Manufacturer
Rongsheng Refractory Material Factory is a powerful manufacturer and seller of refractory bricks. We have rich experience in supplying refractory materials for glass kilns. We are also professional in glass kiln repair materials. For example, high-quality silica bricks, fused AZS Bricks, AZS #33, AZS #36, AZS #44, Zirconia Corundum Bricks, Large Fireclay Bricks for glass kilns, and refractory mortar for furnace bottom, etc.
If you need to purchase refractory materials for glass kilns or conduct a technical consultation on refractory materials for glass kilns, you can contact us. Our technical department will customize refractory lining materials for you according to your actual production conditions to help you solve refractory lining problems. Extend the service life of the furnace lining and save production costs for the enterprise.
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