Corundum Brick for Glass Industry Furnace
Apr 08,2017
Corundum brick (sintered corundum brick) with dense alumina clinker as raw material made of corundum brick,a refractory product made of corundum based crystalline phase in which the alumina content is more than 90%. Corundum brick can be divided into two kinds which are sintered corundum brick and fused corundum brick. They are made by sintering alumina and fused corundum as raw materials or combining Al2O3 / SiO2 bauxite clinker and with sintered alumina, then produced by sintering method.
Corundum brick has excellent physical property in high temperature, such as very high cold crushing strength which can be up to 340MPa, high refractoriness under load which is more than 1700 C;, good chemical stability and strong resistance to slag.
Corundum brick is widely used in lining of ovens of petrochemical industry; bottom of steel rolling mill and in the second-stage converters of the 300000t ammonia synthesis furnaces, steel notch. It is mainly used in key parts of the industrial furnace that require high abrasion and temperature resistance, such as gliding rail bricks in steel pusher metallurgical furnaces, the tapping platform (tapping spout) style walking beam furnaces, and also as the interior for destructors.
Advantages of corundum brick performance:
1. Has a good sintering activity, can improve the degree of rigidity of corundum brick;
2. Corundum corundum corundum brick bulk density is high, low porosity;
3. Has a high room temperature compressive strength, room temperature flexural strength and high temperature bending strength;
4. The best wear resistance;
5. Anti-coal gasification slag and residue residue erosion and permeability performance is better than pure fused white corundum brick;
6. As an aggregate can improve the thermal shock stability of corundum brick;
Application:
Mainly used for blast furnace and blast furnace hot stove, steel furnace refining furnace, sliding water heater, glass melting furnace and petrochemical industry furnace.
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