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Phosphate Bonded High Alumina Bricks For Blast Furnace

Name: Phosphate Bonded High Alumina Bricks For Blast Furnace
Brand: Rongsheng Xinwei
SKU: Rongsheng
Price: 200 USD
Availability: InStock
Rating: 4.9 (170 reviews)

Product Details

Place of Origin: Zhengzhou ,China

Brand Name: Rongsheng Xinwei

Certification: ISO9001

Model Number: Rongsheng

Document: Product Brochure PDF

Payment & Shipping Terms

Minimum Order Quantity: 1 Ton

Price: 200-800USD

Packaging Details: Packed on wooden pallets, with water-proof cover, and tightened with plastic/steel bandages

Delivery Time: 10-20 Days

Payment Terms: TT; L/C

Supply Ability: 2000tons /month

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Product Details

Product Description

Highlight: 
                                                Blast Furnace High Alumina Bricks, Phosphate Bonded High Alumina Bricks
                              

Phosphate Bonded High Alumina Bricks For Blast Furnace

Product Description of Phosphate Bonded High Alumina Bricks For Blast Furnace
Phosphate-bonded high alumina bricks are a type of refractory brick classified as soft-burnt bricks. Composed of premium bauxite and phosphate, these bricks offer excellent resistance to alkaline slag and erosion, high wear resistance, and a high bulk density. They are commonly applied in cement rotary kilns, blast furnaces, ladles, and other high-temperature industrial equipment.

Phosphate Bonded High Alumina Bricks For Blast Furnace 0

Product Composition of Rongsheng Refractory Phosphate Bonded Bricks

Phosphate-bonded bricks are a type of advanced refractory material, composed of phosphate compounds and calcined bauxite aggregates. These bricks are typically manufactured through a molding and pressing process. They can be divided into two categories: phosphate-bonded high alumina bricks, also known as phosphate bricks, and phosphate-bonded high alumina wear-resistant bricks, commonly referred to as phosphate wear-resistant bricks. These bricks, which are not subjected to high-temperature firing, contain approximately 80% alumina. They offer several notable features, including excellent resistance to high temperatures, wear, and erosion, as well as superior thermal shock resistance and high mechanical strength. Phosphate bricks are primarily used in the sintering zone of cement rotary kilns, while phosphate wear-resistant bricks are typically applied in the cooling, exothermic reaction, and decomposition zones. In the cement industry, phosphate-bonded bricks are increasingly replacing traditional high alumina bricks.

Phosphate-bonded high alumina bricks are a type of phosphate-bonded refractory material. Also known as high alumina refractory bricks, they differ mainly in their firing process. While traditional high alumina bricks are produced by high-temperature sintering at around 1400°C, phosphate-bonded high alumina bricks are made using low-temperature sintering. Compared to standard high alumina bricks, phosphate-bonded bricks offer several advantages, including superior refractoriness, enhanced strength, better thermal shock resistance, and improved chemical erosion and wear resistance.

These phosphate-bonded high alumina bricks exhibit key properties such as high refractoriness under load, excellent compressive strength, good thermal shock resistance, wear resistance, low bulk density, and resistance to spalling. Furthermore, they are energy-efficient, easy to install, and maintain stable performance over time.

High refractoriness and high RUL
Good thermal shock resistance
Low bulk density
Anti-spalling performance
Good chemical erosion and wear resistance
High compressive strength
Energy-saving and easy construction, etc.

Phosphate Bonded Bricks Applications

Phosphate refractory bricks are applied in the following parts:

Cement rotary or shaft kiln, such as the preheating zone, thermal zone, and tuyere;
Blast furnace and open hearth furnace
Roof of the steel making electric furnace
Hot blast furnace, and reverberatory furnace
Lining of the cooler; and ladle, etc.

Product Specifications of Phosphate Bonded Bricks

Brands Items	Ordinary phosphate brick	Phosphate bonded abrasive brick	Special phosphate brick	Phosphate composite brick
Brands Items	P-75	PA-75	PT-1	Heavy	Light
Al2O3%≥	75	75	80	5	55
Fe2O3≤	2.1	2.1	1.8	2	1.5
Refractoriness℃	1770	1770	1790	1770	—
Bulk density(g/cm3) ≥	2.7	2.75	2.9	2.8	≤1.0
Cold crushing strength(Mpa) ≥	70	75	80	75	5.5
0.2Mpa refractoriness under load(℃) ≥	1350	1300	1520	1350	—
Thermal shock resistance(1100℃,water quenching, cycle)	20	20	15	—	—
Cold compressive temperature at the bond parts between heavy weight and light weight(Mpa) ≥	—	—	—	—	15

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