It’s snowing heavily How to prevent skidding on EMU trains？

　　Recently, Beijing-Tianjin-Hebei region

　　Welcome large-scale snowfall to cool down

　　Overnight, the earth was covered in silver

　　Poke the video! Watching emus fly in the snow ↓

　　Traveling on a cold snowy day

　　Will the EMU train slip?

　　How do railway people ensure traffic safety?

　　Xiaobian will take you to find out today.

　　Small anti-slip coup: sanding

　　In case of rain, snow and freezing weather, in order to prevent the wheels from idling and slipping, the driver will start the sanding system according to the actual situation in operation. In addition, when the brake control system of the EMU independently judges that the wheelset is idling or sliding, it will automatically sand.

　　Under the action of compressed air, the sand in the sand box of the EMU is scattered on the rail surface at the front end of the wheel running direction along the sand pipe. When the wheel runs over the sand, the friction between the wheel and the rail will increase, thus effectively solving the wheel slip problem and ensuring the EMU to stop within the specified braking distance.

　　Since the beginning of winter, China Railway Beijing Bureau Group Co., Ltd. has kept a close eye on the source management and strengthened the maintenance of EMU.

　　The anti-skid sand used by EMU is not ordinary "sand", but Shi Ying particles made of quartz stone by crushing. When the EMU is put into storage for maintenance, the ground crew should add sand to the cars with less than 50% sand.

　　EMU maintenance personnel will also focus on the inspection of key parts such as sand pipes in combination with the seasonal characteristics in winter.

　　When the locomotive is running in snowy weather, it is also necessary to carry out sanding operation.. When the locomotive and rolling stock are put into storage for servicing operation, the sanding workers should fill the locomotive in storage with machine sand. At the same time, they also need to regularly maintain, repair and clean the locomotive wheels, and check and replace the spring devices to ensure the locomotive running in good condition.

　　Clear the snow in time

　　After the snowfall, in order to ensure the safe operation of the train, the railway department promptly cleared the snow in key parts of the railway line, organized personnel to quickly carry out hot standby of snow removal machines, and cleared the snow and ice accumulation in sections and turnouts with slopes at the first time according to the changes of snow conditions and equipment conditions, so as to restore the normal state of the railway line and ensure the safe and smooth railway transportation.

　　The railway department pays close attention to the equipment changes, especially in areas with high cold and heavy snowfall, and sends special personnel to patrol the equipment continuously and clear the snow at the turnout to ensure the equipment is in good condition and the line transportation safety.

　　Nowadays, many high-speed rail lines are equipped with high-tech automatic snow melting devices, which can assist manual snow removal and deicing of turnouts.

　　Anti-skid is not just "footwork"

　　When there is freezing rain, snow melting and freezing weather, the key parts such as railway tunnels, tunnel entrances and overpasses are easy to freeze. The railway departments take off-line inspections, additional inspections, fixed-point observations, etc. to increase the inspection of key places and clean up icicles near the catenary in time; At the same time, strengthen emergency drills and training around the ice-breaking operation process and safety precautions to ensure personal and driving safety.

　　Snowfall, cooling and freezing weather

　　Ensure the safe operation of the train

　　Railway people are on the move!