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Refractory Brick
Phosphate bricks, also known as phosphate-bonded high-alumina bricks, are high-alumina refractory products made from high-alumina bauxite clinker as aggregate and fine powder, with phosphate or aluminum phosphate as the binder, formed by semi-dry pressing and heat-treated at 400 to 600 degrees Celsius.
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The quality of high-alumina bricks varies significantly. The raw materials used differ, leading to a substantial difference in aluminum content. Ordinary high-alumina bricks have an aluminum content between 55% and 75%, a bulk density of 2.3 to 2.5, and a refractoriness of 1750-1790℃.
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Heavy clay bricks have characteristics such as low linear expansion coefficient and good thermal shock stability, and they have good corrosion resistance to acidic slag.
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Lightweight clay insulation brick
The materials of ordinary lightweight thermal insulation fire bricks include clay, high-alumina, high-strength expanded glass beads, low-iron mullite, high-alumina lightweight bricks, and diatomite thermal insulation bricks.
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Generally, black silicon carbide (with a SiC content of over 96%) is selected as the raw material, combined with a binder (or without a binder), and produced through processes such as batching, mixing, forming, and firing.
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Mullite aggregate lightweight brick / Mullite lightweight insulation brick
Mullite-type lightweight bricks have low thermal conductivity, good thermal insulation and heat preservation effects, and can withstand temperatures above 1500℃.
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Silicon molybdenum brick AZM1680/1650/1550, selected high-quality bauxite and silicon carbide as the base materials, added the required proportion of additives and other auxiliary materials, achieving an optimized combination of the internal structure of the product, greatly improving its spalling resistance and erosion resistance.
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High alumina lightweight brick / High alumina lightweight insulation brick
Suitable for thermal insulation layers in pyrolysis furnaces, hot air furnaces, and various resistance furnaces. It is also widely used in the metallurgical industry for various heating furnaces, coking furnaces, and thermal equipment.
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Widely used as lining materials for cracking and conversion furnaces in petrochemical and fertilizer industries, as well as for gasification furnaces in metallurgy, residual oil gasification furnaces, coal gasification furnaces, carbon black reaction furnaces, pulp waste liquid gasification furnaces, and other industrial furnaces.
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