high quality phosphate high alumina bricks

Phosphate High Alumina Bricks

Phosphate high alumina bricks (also called phosphate bonded high alumina bricks) are a kind of new type environmentally friendly refractory, composed of normal refractory and lightweight insulation refractory to meet the daily production requirements and save costs on coal and powder of users.

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Introduction of Phosphate High Alumina Bricks

Phosphate-bonded high alumina bricks have high mechanical strength, high refractoriness under load temperature, and good thermal shock resistance.

When a small amount of ZrO2 is added to high alumina bricks, the thermal shock resistance of high alumina bricks can be improved, and the number of micro-cracks can be reduced.

Phosphate-bonded high alumina brick, phosphate-bonded high alumina wear-resistant brick, stripping-resistant high alumina brick, and chemical-bonded high alumina brick are widely used in cement kilns.

Phosphate Bonded Alumina Bricks Classifications

1. Phosphate brick (type code: P), short for phosphate bonded high alumina brick, is applicable for the firing zone of cement rotary kiln, transition zone, cooling zone, and high-temperature zone of cement vertical kiln.

2. Abrasion-resistant brick (type code: PA), short for phosphate-bonded abrasion-resistant high alumina brick is applicable for Cement rotary cooler, cooling zone, and high-temperature zone of cement vertical kiln.

Kiln lining bricks should be categorized as special-shaped products in one of the following circumstances

1. The weight exceeds 12kg or less than 4.5kg.

2. More than four measurements.

3. The outline dimension ratio is greater than 1:5.

4. Have concave grooves or holes (except marks).

Phosphate High Alumina Bricks Properties

1. Excellent resistance to abrasion.

2. High thermal shock resistance.

3. High mechanical strength.

4. High refractoriness.

5. With high strength.

Packing & Shipping of Phosphate High Alumina Bricks

1. Strong packing will protect the goods from any possible damage during transit.

2. Solid packing and overall stuffing can prevent packages from vibration and jarring.

3. Strict & standard packing can protect goods from pilferage or rain.

4. Pallet + plastic film + Carton+ fixed band.

5. Pallet + plastic film + fixed band.

6. Pallets: 1*1m, 0.93*0.93m.

7. Gross weight: 1.6~2.0 tons.

8. Packaging according to customer service requirements.

Application of Phosphate High Alumina Bricks

Cement Rotary Kiln

Calciner

Calcining Zone

The roof of the Electric Furnace

The Preheating Zone, High-Temperature Zone, and Tuyere Brick of the Cement Shaft Kiln

Steel Ladle

Chemical & Physical Index

Item	Chemical Bonded	Phosphate Bonded - P	Phosphate Bonded - PA	High RUL
Al₂O₃, %, ≥	75	80	81	81
Fe₂O₃, %, ≤	2	3.2	3.2	2
CaO, %	1	0.6	0.6	-
Bulk & Density, g/cm³	2.7	2.75	2.77	2.85
Refractoriness, ℃ , ≥	1770	1790	1790	1790
Apparent Porosity, %, ≤	18	18-21	20	19
Cold Crushing Strength, MPa, ≥	60	70	75	80
Refractoriness Under Load of 0.2MPa, ℃ , ≥	1400	1350	1450	1460
Thermal Shock Resistance (1100 ℃ -water cooling), times	≥15	≥10	≥10	≥18