Air conveying chute is a pneumatic conveying equipment widely used to conveying dry powder materials. In the cement industry is commonly used to transport cement and raw material powder. Recute in the conveying material because of no rotating parts, easy to maintain, good sealing, no noise, safe and reliable operation. Less power consumption, convenient to change the transmission direction, and can be multi-point feeding and multi-point unloading and been widely used. The main components of the groove are the groove body and the breathable layer. This series of products uses PET 5-8 (polyester) synthetic fiber fabric as the breathable layer, which is a new type of breathable material. It has the advantages of high temperature resistance (up to 150℃), corrosion resistance, wear resistance, low hygroscopicity, light weight, smooth surface, long service life and so on.