Feeding system used before drying of PVDF emulsion

The utility model discloses a feeding system used before drying of PVDF (Polyvinylidene Fluoride) emulsion. The feeding system used before drying of the PVDF emulsion comprises a pressure pump, an emulsion conveying pipeline and a plurality of spray gun groups which are sequentially connected, each spray gun group comprises a plurality of spray gun pipes, and the feeding system is characterized by further comprising a compressed air feeding pipe which is connected with the spray gun group pipeline through a valve; the spray gun set is communicated with an air inlet pipe of the spray drying tower, and the number of the emulsion conveying pipelines is larger than or equal to 2. The compressed air feeding pipe can provide compressed air, a better cooling effect on the spray gun set can be achieved, and the situation that the spray gun pipe is blocked due to high-temperature solidification of the emulsion is prevented. And the pressure of the compressed air is higher, so that the emulsion in the spray gun can be