Auxiliary agent storage and conveying device for PVC (polyvinyl chloride) production room

The utility model discloses an additive storing and conveying device for a PVC (polyvinyl chloride) production room. Comprising an auxiliary storage tank, a storage tank top plate, a storage tank bottom plate, a feeding pipeline, a support, a discharging port, a feeding port, a stirring device, a conveying pipeline, a first hand valve, a first pneumatic valve, a second hand valve, a third hand valve, a fourth hand valve, a second pneumatic valve, a fifth hand valve, a conveying pump, a backflow pipeline, a sixth hand valve, a third pneumatic valve, a seventh hand valve, a backflow inlet and a spraying pipe. A storage tank top plate is arranged at the top of the assistant storage tank, a storage tank bottom plate is obliquely arranged at the bottom of the inner side of the assistant storage tank, and a support is mounted at the bottom of the assistant storage tank; a discharge hole is formed in the top of the additive storage tank and is connected with a feeding pipeline; a discharge hole is formed in the bott