Double-helix precise supplementing equipment for chromic anhydride raw materials

The utility model discloses a chromic anhydride raw material double-helix precise material supplementing device, and relates to the field of material supplementing devices. Comprising a feeding bin and a spiral material supplementing mechanism connected with an outlet of the feeding bin, a conveying belt is arranged below a discharging port of the spiral material supplementing mechanism, a metering device is arranged on the conveying belt and used for measuring the weight of materials in a material barrel located on the conveying belt, the metering device communicates with a PLC, and the PLC is connected with the conveying belt. The PLC communicates with the spiral material supplementing mechanism, and controls the discharging of the spiral material supplementing mechanism according to the weighing weight fed back by the metering device; according to the feeding device, accurate feeding is achieved, and the conditions of poor feeding and excessive feeding are avoided. 本实用新型公开了一种铬酐原料双螺旋精准补料设备，涉及补料设备领域；包括：送料仓以及