Consequently, both chemical and thermo-mechanical conditions are very severe here. The primary criteria for Refractories to be used in these zones are that they should have higher tendency to form a stable coating of clinker which enhance the life of the refractory by protecting it against the mechanical abrasion and chemical action of the clinker. The usage of high alumina Refractories in this zone is diminishing with the advent of large diameter rotary kilns with pre-heaters and pre-calcinators due to increased thermal as well as mechanical load.
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Rishi Agarwal (New Bharat Refractories Ltd.)
1-B, Trikut, 181, Block ‘G ‘New Alipore
Kolkata – 700 053, West Bengal - 700053, India
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