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The sulfur furnace is the equipment used for sulfur ore roasting or sulfide oxidation. It requires the use of a series of refractory materials to protect the furnace body from high temperature, corrosion, and chemical attack. The following are some of the refractory materials that may be used in sulfur furnaces:
Refractory bricks: Refractory bricks are one of the common refractory materials used to build the inner walls of sulfur furnaces. These bricks can withstand high temperatures and chemical attacks.
Corundum Brick: A high-temperature refractory material composed of alumina and corundum, the primary crystalline phase in alumina. Corundum (corundum) is a very hard ore usually formed from the high-temperature crystallization of aluminum oxide. Corundum bricks are widely used in various industrial applications due to their good high-temperature resistance, wear resistance, and chemical stability.
Corundum-mullite brick: a high-temperature refractory material that combines the two crystal phases of corundum and mullite. This kind of brick usually contains alumina, corundum, and mullite in its composition. The combination of the two gives the brick some good properties. This kind of brick is widely used in high-temperature industrial fields, especially when it is required Taking into account high-temperature stability, wear resistance, and chemical stability.
Refractory castable: This is a castable refractory material commonly used for the bottom of sulfur furnaces and other complex-shaped parts. They are more flexible than refractory bricks and can be easily adapted to different shapes.
Refractory Coating: This is a coating used to cover the surface of a furnace to provide additional fire resistance. It can be applied on the surface of refractory bricks or other refractory materials to improve their corrosion resistance.
Refractory ceramic fiber products: used to insulate and fill cracks and pores in furnace bodies. This material is lightweight and has good thermal insulation properties.
Corrosion-resistant coating: Corrosive gases may be produced during the incineration of sulfur ore. Corrosion-resistant coating can help protect the furnace body from corrosion.
High-temperature resistant mortar: Used to fix and connect refractory materials to ensure that they maintain structural integrity in high-temperature environments.
The selection of these refractory materials depends on the design of the sulfur furnace, operating conditions, and the nature of the materials being processed. Designers and engineers often select the appropriate materials based on specific requirements to ensure the reliability and performance of a sulfur furnace.
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