FIELD: repair of refractory lining. SUBSTANCE: refractory powdery compound from unfired magnesium and calcium or mixtures thereof with fired magnesium and calcium is applied to damaged main refractory lining by method of batching with particle size of refractory compound of 3-15 mm or by method of welding-on or packing with particle size of refractory compound 0-6 mm or by method of flame gunning with particle size of refractory compound of 0-1 mm, and heat treated at sintering temperature. EFFECT: improved properties of refractory compound.
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