HCE blow-down positive pressure low dense phase fly ash transmitter is the main equipment for positive pressure air and force transfer system. It uses compressed air as transfer force, and uses density stabilizer, conveys dry powder particles periodically. It suits for fly ash with coarser particle and higher specific weight. It has been widely applied in ash conveyance for fluidized bed and coal-burn only boiler power plant and powder material conveying of cement, chemical, metallurgy, and grain industries.