Patent ID: 8679223

Claim:
A high efficiency method for scooping-up slag from liquid iron in a ladle, using a device comprising: a driving device mounted on a front end of a cantilever which is mounted on a hoisting main shaft, two slag rakes driven, respectively, by the driving device, two rotating shafts mounted side-by-side below the driving device, two gears, which are not engaged with each other, are fixed, respectively, to rear ends of the two slag rakes by means of the two rotating shafts mounted side-by-side below the driving device, and a driver for driving the two gears to rotate in opposite directions, the method comprising: driving the two slag rakes to a predetermined depth beneath a surface of the liquid iron; swinging the two slag rakes respectively along the surface of the liquid iron by means of the driving device; during the swinging movement, gradually moving the two slag rakes close to each other, and gathering and clamping the slag from the liquid iron; while the two slag rakes are clamping the slag, driving the two slag rakes upwardly above the surface of the liquid iron to a predetermined height by means of the cantilever, moving the two slag rakes away from a working position above the liquid iron, and discharging the slag away from the liquid iron.