Refractories that will optimize your calciner

The calciner dramatically improves thermal efficiency in the cyclone system. It also reduces fuel costs by optimizing the use of cheaper waste and low-grade alternative fuels.

Anything that will burn can find its way into the calciner. These fuels often cause operational or refractory problems, such as early wear on center pipes in the hotter cyclones, clogging in the riser duct and penetration of chemicals into the refractories, resulting in capping, and alkali attack on the refractories and metal components such as anchors, joints and shell.

Because of higher operating temperature, chemical attack is a more severe problem in the calciner than in the cyclones. High refractoriness and good resistance to thermal shock are also necessary, especially around the burner blocks.

Correct insulation is important, but risk of chemical attack must also be considered. High operating temperature, combined with the dense calciner refractories, can lead to substantial heat loss if insulation is insufficient. The optimal solution must balance this against the risk of chemical attack.

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