Device for preventing loss and disorder of switching pulse quantity of dynamic rail weighbridge of hot-metal bottle

The invention relates to the related technical field of operation guaranteeing devices, in particular to a device for preventing the pulse quantity of a dynamic rail weighbridge switch of a hot-metal bottle from being lost and disordered, which comprises a proximity switch mounted on a rail, and infrared correlation devices respectively positioned on two sides of the rail are arranged in front of the proximity switch. An air blower and an air blowing mechanism are arranged on the side portion of the proximity switch, the infrared correlation device and the air blower are both in circuit connection with the time controller, the entering condition of the molten iron tank car is detected through the infrared correlation device, and the air blower is controlled to be started in cooperation with the time controller; and iron sheets and scrap iron on the proximity switch are blown away through the air blowing mechanism, so that the proximity switch can accurately detect the molten iron tank car, the weighing effect