APPARATUS FOR OPENING AND CLOSING OF DAMPER

摘要

PURPOSE: A damper opening and closing apparatus is provided to open a damper and discharge dust out of a duct when the dust falls into a hopper. CONSTITUTION: A damper opening and closing apparatus(150) comprises a controller and a driving part(152). The controller moves a scraper(154) up and down and is connected to a duct(130) for carrying dust produced in a belt conveyor. The driving part comprises a first conveying arm(156a), a first link(157a), a second conveying arm(156b), and a second link(157b). The first conveying arm is connected to a scraper and operated in the same direction as the scraper. One end of the first link is hinged on the first transfer arm. The second transfer arm is hinged on the other end of the first link. One end of the second link is hinged on the second transfer arm while the other end is connected to the rotary shaft of a damper(140) to rotate the damper.