BLAST FURNACE GUTTER REFRACTORY MATERIAL DEMOLISHING DEVICE

PROBLEM TO BE SOLVED: To eliminate a side slip by the drilling repulsion force, and restrictions in the outer shape dimensions and the weight or the like of a gutter refractory material depomishing machine by arranging a gutter refractory material demolishing machine main body wherein a rotary drilling unit is attached at the boom tip end section of a crawler belt running truck, and a side slip preventive metal fitting of the demolishing machine crawler belt, on the upper surface, and also, combining a lay base having a stepping face, of which the span is wider than the span of the demolishing machine crawler belt. SOLUTION: This gutter refractory material demolishing device is constituted of a lay base 22 wherein a side slip preventive metal fitting 20 to prevent a crawler belt 13 from slipping a sideways is arranged on the upper surface, and also, a grounding surface plate 21 with a cast bed 15 is arranged on the lower surface; and a gutter refractory material demolishing machine 23. Then, the gutter refractory material demolishing machine 23 is arranged on the lay base 22 which is set on the cast bed 15, and a drilling drum 4 is pressed to a gutter refractory material 9 under a state wherein the side slip is prevented from occurring by the side slip preventive metal fitting 20, and the gutter refractory material 9 of an iron spout 8 is drilled and demolished. In this case, by making the span of the grounding plate 21 larger than the span of the crawler belt 13, a rotary friction holding moment between the lay base 22 and the cast bed 15 is increased, and a side slip between them is surely prevented from occurring.