| 摘要 |
PURPOSE:To determine a small quantity of powdery granules surely and easily, dispersing and mixing it by adding the first powdery granules which have been determined and weighed with a cup utilizing a rotary valve to the second powdery granules of the swirling flow or the time-lag flow. CONSTITUTION:A rotor 1 is provided freely rotatively in the inside of a guide frame 3 provided to a hopper outlet 2. A communication port 4 for the hopper outlet 2 and a discharge port 5 corresponding thereto are provided to the guide frame 3 and a recessed part 7 for a weighing cup is provided to a cylindrical surface of the rotor 1. The first powdery granules 10 for addition are received on the inside of the recess part 7 and the quantitative amount to be taken out is controlled by the run of the recessed part 7. The first powdery granules 10 to be taken out are added to the second objective powdery granules 12 via a chute 13 and mixed. The second powdery granules 12 are flowed as the drop flow through an outlet 18 from the second hopper 17 and made to the swirling flow 20 by means of a shade body 21 in the inside of the third hopper 19 or the flow having time lag is formed. The first powdery granules 10 are added in the state dispersed into the swirling flow 20 and thereby the quantitative dispersion and mixing are surely performed. |
