Pneumatic Conveying System is a method of moving raw materials by using pressure difference and the air flow accordingly in a pipe sealed by a blower or compressor. The transfer line is divided into a press-in type and a suction type depending on whether the pressure inside the pipe is positive or negative, and it can be moved successfully without damage or loss of raw materials according to the airflow generated by this pressure difference.
Plastic pellets generate impurities such as dust, streamers, angel hair, etc. due to friction in the conveying line. When the pellet is transferred at a high speed as in the dilute phase, foreign substances such as streamer or angel hair are generated as the pellet scratches against the pipe, and fine dust is generated when it is relatively slowly transferred at higher pressures as in the dense phase. In addition, dust may be generated due to the temperature and the characteristics of the raw materials.