The invention relates to a pneumatic
solid particle feeding
system which comprises a main blowing
pipe, a feeding
pipe and a hopper. The feeding
pipe is used for conveying
solid particles from the hopper, and the main blowing pipe is used for providing conveying air for conveying the
solid particles for the feeding pipe. The pneumatic
solid particle feeding
system is characterized in that an end notch of an air outlet of the main blowing pipe is flush with the side, close to the end of the feeding pipe, of a discharging opening of the hopper, and at least part of the end notch of the air outlet of the main blowing pipe inclines, so that the conveying air blown by the main blowing pipe has a vector in at least one other direction besides the horizontal direction. By means of the pneumatic
solid particle feeding
system, the shapes of solid materials can be kept good, and the pipeline blocking phenomenon is avoided. The pneumatic
solid particle feeding system is directly connected with an inlet pipe of a device reactor through the feeding pipe in a sealed mode, and therefore the continuous material conveying process can be achieved,
energy consumption is lowered, and environment
pollution is avoided.