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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, as different raw materials are used, resulting in a large difference in aluminum content. Ordinary high-alumina bricks have an aluminum content between 55% and 75%, a bulk density of 2.3-2.5, 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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High-strength alkali-resistant bricks
Alkali-resistant bricks are generally made from low-alumina clay bricks with an Al₂O₃ content of 25-30%, and are produced by adding silica, corundum, and appropriate additives to improve compressive strength.
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Magnesium iron spinel bricks are a new generation of chromium-free alkaline refractory materials used in the firing zone of large rotary kilns. They utilize the characteristic of iron oxide solidifying in magnesium oxide, using high-purity spinel as raw material, and are formed into chromium-free and environmentally friendly products through high-temperature sintering.
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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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Anchor refractory bricks, also known as hanging bricks, are a type of refractory material used in industrial kilns. They are made by selecting high-quality raw materials, forming them through machine pressing or casting, and then sintering at high temperatures. Anchor bricks can be roughly divided into two types based on the material used: high-alumina and clay.
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Anti-spalling high-alumina brick
Compared to traditional high-alumina bricks, spalling-resistant high-alumina bricks have strong spalling resistance, high refractoriness, good resistance to cracking, and strong corrosion resistance. They also resist the corrosion of potassium, sodium, sulfur, chlorine, and alkaline salts, and have low thermal conductivity.
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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 thermal equipment for various heating furnaces and coke ovens in the metallurgical industry.
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