Exit air duct for the discharge of gases produced in coke-ovens

Details Exit air duct for the discharge of gases produced in coke-ovens Exit air duct for the discharge of gases produced in coke-ovens

C - Chemistry, Metallurgy

10

B

202/46

C10B 27/06 (2006.01) C10B 27/04 (2006.01) C10B 33/00 (2006.01)

Patent

CA 1176595

ABSTRACT OF THE DISCLOSURE An exit air duct for discharging coke-oven gases has a collection duct with a longitudinally extending slot in the top of the duct wall. A box-shaped superstructure extends generally parallel with the duct and communicates with same by said slot. A flexible belt seals the top of the superstructure. When the belt is lifted, it exposes an upper grate in the superstructure, to thus communicate the exterior of the superstructure with the interior thereof. In addition to the upper grate, a lower grate is provided in the superstructure. An air duct formed below the upper grate is divided into a plurality of air chambers by transverse partitions. The invention reduces high investement costs by providing for continuous operation without the need for forced ventilation of cooling air, while reducing the danger of damage to the flexible belt.

334796

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