Replacement of Coke Plant Gas Collecting Mains while maintaining production
Nowadays, the renewal of the collecting main is not an unusual occurrence in coke oven plants. The lifes of batteries have been extended considerably using modern repair and maintenance techniques and it is accepted on many batteries that the collecting main replacement will need to be carried out sometime during the plant’s lifetime. The procedure however needs careful planning and coordination and is not considered easy or routine. Technically, there is no room for error.
The major drawback is that normally the battery has to be shut down while the new main is installed with the consequential loss of coke and gas. There is also further disruption with movement of machines and delays to schedule and very careful control of the heating system is necessary while the battery is shut down for an extended period. There is also the age–old question of whether to leave the coke in or pushing the battery empty. A primary consideration might be the criteria of maximizing production with particular emphasis on minimum disruption to the works fuel balance. The maximum possible battery operation should then be maintained.
Danieli Corus has developed a new approach to replacement of the gas collecting main. This approach allows for the battery to remain in operation, minimizing any production losses anywhere down stream.
The major drawback is that normally the battery has to be shut down while the new main is installed with the consequential loss of coke and gas. There is also further disruption with movement of machines and delays to schedule and very careful control of the heating system is necessary while the battery is shut down for an extended period. There is also the age–old question of whether to leave the coke in or pushing the battery empty. A primary consideration might be the criteria of maximizing production with particular emphasis on minimum disruption to the works fuel balance. The maximum possible battery operation should then be maintained.
Danieli Corus has developed a new approach to replacement of the gas collecting main. This approach allows for the battery to remain in operation, minimizing any production losses anywhere down stream.
