Apparatus for changing the charge distribution in a blast furnace
AssigneesNippon Steel Corporation, Nittetsu Plant Designing Corporation
InventorKyoichi Ando
Life of this patent
Estimating the term…
Abstract
An apparatus for changing the charge distribution in a blast furnace is constituted by a large number of arms disposed in a circle in the top of the furnace, the upper end of each arm being attached to the shell of the furnace through a link so as to be tiltable relative to the shell, a plate fixed to the lower portion of the arm and facing toward the center of the furnace, and a mechanism including a push rod for inclining the arm with respect to the axis of the furnace in a direction for pushing the lower portion of the arm toward the furnace center. The link, arm and push rod make up a link mechanism. The linear motion of the push rod expands the paired link and arm and inclines the plate while pushing the plate inward.
Claims4
An apparatus for changing the charge distribution in a blast furnace, comprising:
- a plurality of arms disposed in a circle within the top of the furnace and extending generally vertically;
- a plate mounted on the bottom of each arm facing toward the center of the furnace in the path of the trajectory of the charge flowing into the furnace for being struck by the charge and deflected into the lower portion of the furnace;
- push rod means to which the lower end of each said arm is pivotally connected, each said push rod means being movable for moving the lower end of the corresponding arm toward and away from the center of the furnace along a substantially horizontal line;
- drive means connected to each said push rod means for moving said push rod means toward and away from the center of the furnace;
- and
- means mounting the upper end of each arm for swinging movement downwardly along an arc away from the center of the furnace and slightly outwardly toward the periphery of the furnace by the movement of the lower end of each said arm toward the center of the furnace by said push rod means, whereby the plate is tilted so as to move the upper edge away from the center of the furnace the closer each plate is moved toward the center of the furnace.
Dependencies are inferred from the claim text.