Apparatus for changing the charge distribution in a blast furnace.

摘要

The apparatus for changing the charge distribution in a blast furnace is constituted by a large number of arms (25) disposed in a circle in the top of the furnace. In order to control the furnace charge distribution overa wide area the upper end of each arm (25) is attached to the shell of the furnace (1) through a link so as to be tiltable relative to the shell (1) and a plate (26) is fixed to the lower portion of the arm (25) and faces toward the centre of the furnace. A mechanism including a push rod (27) for inclining the arm (25) with respect to the axis of the furnace is provided for pushing the lower portion of the arm (25) toward the furnace center. The link (23), arm (25) and the push rod (27) make up a link mechanism. The linear motion of the push rod (27) expands the paired link (23) and arm (25) and inclines the plate (26) while pushing the plate inward.