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DUNAFERR Integrated Steel Plant
Reconstruction of coke oven battery No.3

A unique two-stage reconstruction of coke oven battery in operation was carried out.

Preparation works: Hot repair of 7 ovens before reconstruction of the whole battery in order to stabilize work of by-product coke production.


SCOPE OF CIVIL AND ERECTION WORKS PRO RECONSTRUCTION:

  • arrangement of temporary charge feeding – loading of coal charging car was carried out from the end platform. Charge was fed into bunkers by means of conveyor system;

  • complete re-bricking of the top superstructure;

  • repair of the three upper rows of the inclined flue zone;

  • re-bricking of head part of regenerator walls;

  • replacement of fire grates;

  • replacement of flash plates and door frames;

  • installation of new units for reinforcement lines;

  • replacement of all cross and longitudinal tie rods of oven armoring;

  • replacement of reverse valves and gas and air valves;

  • replacement of hydraulic-assisted stand pipes and industrial pipelines;

  • implementation of automated process control system.

 

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