Fly ash is an essential material for modern concrete, which can help its "ball effect" to improve pumping performance and reduce costs. However, its low activity characteristics limit its addition and the above advantages, and the unburned carbon it contains will adsorb water reducing agent, thus weakening its role in improving mobility. On the basis of a large number of laboratory studies and certain theoretical results obtained, a fluidized bed chemical vapor deposition method is adopted, using a fly ash reservoir as a fluidized bed, and vaporized modified materials are introduced into it and uniformly coated on the surface of fly ash particles., forming a nano-level modified layer, significantly improving the fluidity of concrete. Preliminary results show that using mobile modification method can simplify production and is conducive to the promotion of this technology. Therefore, it is necessary to study a bulk vehicle-mounted modified material adding device and the corresponding fluidized bed vapor deposition process suitable for this technology; specifically, using bulk trucks as the fluidized bed and using their gas source and power supply as power to develop vehicle-mounted modification devices, focusing on solving a stable production process that can complete modification during rapid loading. Various optimization schemes have been designed and mobile device prototypes have been fabricated, and preliminary attempts have shown their strong feasibility. Goal: Transform the established series of intellectual property rights into actual productivity, quickly promote it, improve concrete performance more extensively, and improve building quality.