COKE OVEN DOOR WITH MULTI-LATCH SEALING SYSTEM

摘要

A coke oven door (10) comprises a segmented door body (12) and plurality of toggle mechanisms (14) coupled to the door. The toggle mechanisms (14) include toggle links (54, 68) pivotally connected by an intermediate pivot shaft (58) and pivotable between an extended length and a shortened length. Inner ends of the toggle mechanism (14) are coupled to the door body (12) and outer ends of the mechanisms (14) are coupled to a latch tension bar (72) which engages latch hooks (82) connected to the door jamb (16). Vertical movement of a latch actuator rod (18) coupled to the intermediate shaft (58) moves the toggle mechanisms (14) to an extended position to flex the latch tension bars (72) and force the door body (12) against the door jamb (16). Each latch tension bar (72) provides an independent sealing force on the door (10).