Gas-tight slider mounted between gas-tight silo and gas-tight intermediate container, has pusher plate that is driven so that pusher plate constantly exerts pressure on slider to maintain sealing

摘要

The slider has a tray that is forwardly movable and is pushed up for opening/closing the opening. A stripper cleans a pusher plate to prevent leakage of impurity. The pusher plate is driven so that pusher plate constantly exerts pressure on the slider to maintain the sealing.