Coke oven reconstruction

Abstract

A new, faster and more efficient process to replace heating walls and ceilings in coke oven batteries. Thus, when replaced, at least one heating wall is constructed of thermally stable non-expanding large size modular cast modules from end to end and the ceiling adjacent the heating wall is constructed of thermally stable non-expanding large modular cast blocks.

Description

technical field [0001] The present invention relates to the rebuilding of coke ovens, and more particularly to a new, faster and more efficient way of rebuilding the heated walls and roofs in coke oven batteries from the pusher side to the coke side, using large format cast ) integral modules with high dimensional stability, negligible thermal expansion, good wear resistance, good compressive strength and good thermal shock resistance in the range of -20°C to 1565°C. Background technique [0002] Many coke oven batteries in the United States and around the world are more than 50 years old and most of these coke oven batteries are made of silica bricks. As the blocks age, the silica brick heating walls begin to deteriorate requiring repairs ranging from patching and spraying material to stop further cracking and slow ongoing deterioration all the way to replacing the end sections of the heating walls. Ultimately, the heating wall still needs to be replaced. Historically, re...

AI Technical Summary

Problems solved by technology

Silica bricks can come in over a hundred different shapes and there are often issues with the suppliers of silica bricks resulting in a fairly high percentage of broken blocks which in turn slows down the repair process

Blocks made from refractory patching mixtures were slightly better, and blocks arrived with less damage, but there were still thousands of blocks to be laid in hundreds of different shapes, resulting in longer downtime and higher costs

Images