Feida Environmental Protection has three positive pressure dense phase gas ash conveying system technologies, namely "upper-drawn fluidized small silo pump system", "downward-drawn booster gas conveying system", and "double-tube gas conveying system", as well as continuous dilute phase gas conveying system, micro-positive pressure gas conveying system, negative pressure gas conveying system and other technologies. It can realize uninterrupted and continuous conveying of materials, and is suitable for conveying over long distances, multiple materials and multiple occasions. The unique patented technology has the advantages of high material-gas ratio, wear resistance, no pipe blocking, strong reliability, and intelligent energy saving. It adopts an intelligent integrated control mode combining local operation box and remote control, with the characteristics of fault visualization, data integration, remote informatization, etc., to ensure more reliable and reasonable use of system resources and centralized intelligent management