Phosphate High Alumina Bricks
Introduction:
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 light weight insulation refractory to meet the daily production requirements and save costs on coal and powder of users.
Phosphate bonded high alumina bricks have high mechanical strength, high refractoriness under load temperature, and good thermal shock resistance.
When small amount of ZrO2 is added into high alumina brick, thermal shock resistance of high alumina bricks can be improved, and the quantity of micro crack 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 Brick Classifications
1. Phosphate brick (type code: P)，short for phosphate bonded high alumina brick, are applicable for 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 are applicable for Cement rotary cooler, cooling zone and high temperature zone of cement vertical kiln.
Kiln lining bricks should be categorized in 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 mark).
Technical Index
Item | XHJLPA55 | XHJPAA75 | XHJPAA75 | XHJPAA80 | XHJPPA81 | XINPRU85 |
Al2O3, %, ≥ | 55 | 75 | 75 | 80 | 81 | 85 |
Fe2O3, %, ≤ | 2.5 | 1.8 | 2.0 | 2.0 | 1.8 | 1.8 |
CaO, % | 2.0 | 1.0 | 1.0 | 0.6 | 0.6 | 0.6 |
Bulk & Density, g/cm3 | 1.00 | 2.70 | 2.75 | 2.75 | 2.77 | 2.85 |
Refractoriness, ℃ , ≥ | 1750 | 1770 | 1770 | 1790 | 1790 | 1790 |
Apparent Porosity, %, ≤ | 18 | 18 | 20 | 20 | 21 | 19 |
Cold Crushing Strength, MPa, ≥ | 50 | 65 | 60 | 75 | 80 | 80 |
Refractoriness Under Load 0.2MPa, ℃ , ≥ | 1350 | 1400 | 1400 | 1350 | 1450 | 1460 |
Thermal Shock Resistance (1100 ℃ -water cooling), times | ≥15 | ≥12 | ≥15 | ≥12 | ≥15 | ≥18 |
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
Application
Cement Rotary Kiln
Calciner
Calcining Zone
The roof of Electric Furnace
The Preheating Zone, High-Temperature Zone, and Tuyere Brick of Cement Shaft Kiln
Steel Ladle
Packing & Shipping
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.
1. Pallet + plastic film + Carton+ fixed band,
2. Pallet + plastic film + fixed band .
3. pallets: 1*1m, 0.93*0.93m .
4. Gross weight: 1.6~2.0ton.
5. packaging according to customer service requirements.