When the industrial furnace is used, the furnace door lifting mechanism must be in good condition, and the broken wire of the wire rope must not exceed the specified value. The heavy hammer is properly configured, and the exposed transmission part should be provided with a protective cover. If it is a water-cooled furnace door, it is necessary to ensure that the pipeline is unblocked, and the pipeline is not frozen in winter. The furnace door should have a limit device.
When entering and leaving the furnace, there should be an interlock device to cut off the power supply. The number of broken wires in the wire rope should not exceed 10% within the pitch. The weight suspension of the balance furnace door should be reliable. It is required that the protective device of the exposed transmission part should maintain the correct installation position and the structure is reasonable. The wire rope pulley of the furnace car should be intact.