The casting bridge crane is the main lifting and transportation equipment in the smelting workshop of the steel plant.It is used for the transportation,pouring and mixing of liquid metal in the smelting process.It adopts the main and auxiliary double trolley,four beam and four rail structure and is composed of bridge,main trolley,auxiliary trolley,hook beam,crane operation and electrical parts.The main trolley runs on the main beam track outside the bridge and the auxiliary trolley runs on the auxiliary beam track inside the bridge,The pick-up device of the main trolley is a hook beam with fixed spacing,which is used to lift the ladle.The pick-up device of the auxiliary trolley is a hook,which runs under the main trolley and cooperates with the main hook to complete the dumping of molten steel,steel slag and other auxiliary lifting operations.
The crane operating mechanism and main electrical equipment are installed in the main beam.The main beam electrical room is insulated with rock wool and equipped with cooling fan.In order to reduce the heat radiation of molten steel to metal structural parts,a heat insulation board is set at the bottom of the main beam along the span direction.
