Kola MMC repairs gas duct in metallurgical shop

New sections are made of high quality 10 mm steel with inner lining of polyisobutylene (special acid proofing material). Each section is 3 meter in diameter and 18 meters long. Pechengastroy, Kola MMC subsidiary, is engaged in dismantling and section-by-section replacement of gas duct segments with two special cranes.

Section-by-section repair of gas duct without interruption of production process is in progress for several years in a row. Up to date over 65 per cent of gas duct with total length of about 1.3 km was replaced. It helped to considerably reduce fugitive emissions of sulfur dioxide