In this paper,a braking device to block the abnormal decline of the furnace door of the fur-nace is introduced,which is used to solve the problem of the abnormal falling of the furnace door due to the loss of traction force of the furnace door due to unexpected conditions.The braking device in-cludes a furnace door blocking structure,a traction mechanism and a control device.Described braking device structure is reliable,and cost is low,can effectively reduce the loss caused by equipment failure.
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