Apparatus and method for closing or opening of an opening, in particular in the bottom opening of a material hopper for a blast furnace and the blast furnace with a device of this type

摘要

The present invention relates to a device for closing or opening of an opening, in particular a base opening (10) is arranged above the mouth of a blast furnace material hopper (11) with a drivable flap plate (12), which in the opening which releases the open position and into a closed position and vice versa, the opening which is movable.The invention is characterised in that the flap plate (12) in the region of the opening of a linear movement substantially perpendicular to the plane of the opening and distally from the opening is carried out a pivoting movement.