Feeding system and triple-eccentric mixer

The utility model relates to a feeding system and a triple eccentric mixer, the feeding system comprises a storage tank and a plurality of groups of feeding devices and screening devices, the feeding devices and the screening devices are correspondingly arranged, the feeding ends of the feeding devices are connected with the outlets of the screening devices, and the discharging ends of the feeding devices correspond to the inlets of the storage tank; and the discharging end of the feeding device is provided with a discharging piece capable of controlling the feeding device to feed materials to the material storage tank. During feeding, different materials are put into the different screening devices respectively and fall into the corresponding feeding devices after being screened by the screening devices, finally, the discharging pieces are controlled, feeding of the multiple feeding devices into the storage tank at the same time is achieved, the feeding sequence and time can be flexibly controlled, and when