Abstract:

This paper introduces the conditions of two blocks of 6 m coke ovens and analyzes the main causes of end flue damage as well as the advantages of re-bricklaying for oven end flues with low expansion rate silica bricks by uncovering from battery roof.Thus solutions can be given to the damage and deformation on heating wall at end flues and the oven end emission escaping and flaming as well.Compared with using ordinary silica bricks, the overall time schedule can be shortened by around 110 days, coke can be saved by 23 210 tons approximately and coke output can be increased by 50% plus.