Material pneumatic conveying system

The utility model provides a material pneumatic conveying system, which belongs to the technical field of material conveying and comprises a bin pump, a back pressure air inlet device, a back pressure air outlet device and a material conveying device, the fluidization air inlet device is arranged above the main air supply pipeline of the bin pump; according to the material pneumatic conveying system, due to the arrangement of the backpressure air inlet device and the fluidization air inlet device, conveying is more efficient and energy-saving, the ash-air ratio is high, the conveying concentration is large, the conveying system is stable and reliable, the situation that the discharging pipe is blocked cannot occur, energy consumption can be effectively reduced, pipeline impact and abrasion can be reduced, and the service life of the conveying system is prolonged. And the situations that the pipe frame falls off and deforms are avoided. 本实用新型提供的物料气力输送系统，属于物料输送技术领域，包括：仓泵，内部适于存放物料，背压进气装置，设置在仓泵的上端的；流化进气装置，设置在仓泵的主