The system is a complete set of equipment specially developed for belt enterprises to produce whole core flame retardant conveyor belt. It can meet the requirements of kneading mixer for conveying, storing, batching, weighing, feeding and dust removal of powder and oil. It can be linked with kneader to realize automatic production of PVC / PCG production line. Compared with the traditional production process, it has the characteristics of high precision, high efficiency, good production environment, labor saving and stable product quality.