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Description of Refractory Bricks for Cement Kilns High Alumina
Refractory Bricks for Cement Kilns High Alumina is made of high grade bauxite through high temperature calcinations. The Al2O3 content is usually above 48% . High alumina brick is a kind of neutral refractory material so that it enjoys excellent resistance to acid and alkali corrosion.
Feature of Refractory Bricks for Cement Kilns High Alumina
1. High-temperature endurable .
2.Good thermal shock resistance.
3.High cold crushing strength
4.Good resistance to abrasion and corrosion.
5.Good thermal spalling resistance.
6.High mechanical strength.
7.Good volume stability at high temperature.
Application of Refractory Bricks for Cement Kilns:
Refractory Bricks for Cement Kilns is used for building blast furnaces, hot blast stove, electric stove roof, ladle,blast furnace and reverberatory furnace, lining of rotary kiln and glass kiln and chemical industrial kiln. In addition, high alumina brick is widely used as regenerative checker brick of open hearth, pouring system with the plug head, nozzle brick, etc.
Data of Refractory Bricks for Cement Kilns
|Apparent porosity %||≤23||≤23||≤22||≤22|
|Cold crushing strength Mpa||≥53.9||≥49.0||≥44.1||≥39.2|
|Refractoriness under load(0.2MPa) °C||≥1520||≥1500||≥1470||≥1420|
|Reheating Linear Change %||+0.1(1500°C, 2h)||--|
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