HOT GUNNING DEVICE FOR INSIDE WALL OF BLAST FURNACE OR THE LIKE

摘要

PURPOSE:To repair the inside of a blast furnace with a simple operation by utilizing a nozzle which swivels horizontally around the furnace core and can be vertically moved in the furnace by cords from the furnace outside to gun refractories in the stage of repairing the damaged part of the inside wall of the furnace with monolithic refractories. CONSTITUTION:A supporting frame 2 attached with the nozzle 1 is made swivelable in a horizontal direction around the furnace core and is tilted in the direction of an arrow (b) by means of a tilting cylinder 5 around a fulcrum 4 in the stage of repairing the damaged part of the refractory material on the inside wall of the blast furnace 6 by the monolithic refractories gunned from the nozzle. In addition, the above-mentioned frame is made vertically movable in the direction (c) in the furnace by means of lifting wires 10 via winches 9 and sheaves 8. The powder refractories are supplied together with water to the nozzle 1 by a press feed hose 16 and the nozzle is correctly directed to the damaged point by vertical movement, horizontal swiveling and tilting and the monolithic refractories are gunned therefrom. The inside wall of the furnace is thus quickly repaired by the simple operation.