Raw material screening device for compound protein peptide tablet production

The raw material screening device comprises a base plate, the top of the base plate is fixedly connected with a screening barrel, an air pump and a material storage bin, a conveying mechanism is arranged between the screening barrel and the material storage bin, a bottom opening of the screening barrel is fixedly connected with a first material guide pipe, and the bottom opening of the screening barrel is fixedly connected with a second material guide pipe. The motor is controlled to work through the switch, the output end of the motor drives the auger to rotate, raw materials in the storage bin are conveyed into the screening barrel through the rotating auger, the air pump works, the pressure gauge is matched with the adjusting valve to adjust the airflow output by the air spraying head, and the airflow sprayed out by the air spraying head blows and selects the raw materials entering the screening barrel. Qualified raw materials float far and are discharged by a discharging pipe under the guiding effect of a