DISPOSITIVO PER LA COMMUTAZIONE DELL ALIMENTAZIONE DI CALORE A BATTERIE DI FORNI DA COKE

摘要

A coke oven battery includes a plurality of coke ovens heated during certain time intervals and the heat supply being reduced subsequent to these time intervals. First valve means controls the flow of combustion air for the ovens and second valve means controls the flow of waste gases recovered from the ovens and recycled back to the ovens. A first primary activating means activates the first and second valve means. Third valve means controls the flow of decarbonizing air for the ovens and a second primary activating means activates the third valve means. Fourth valve means controls the pressure in the ovens and first auxiliary activating means activates the fourth valve means. Fifth valve means controls the flow of fuel for the ovens and second auxiliary activating means activates the fifth valve means. The coke ovens may be arranged in groups so that the coking conditions at any time are the same for all ovens of a given group. The first auxiliary activating means includes a plurality of first auxiliary control linkages each of which is associated with one of the groups while the second auxiliary activating means includes a plurality of second auxiliary control linkages each of which is associated with one of the groups. Automatic coupling means may couple the first primary activating means with the first auxiliary activating means and couple the second primary activating means with the second auxiliary activating means. This permits the primary activating means and the respective auxiliary activating means to be driven as units when both the primary activating means and the auxiliary activating means must be operative.