B - Operations – Transporting – 65 – G
Patent
B - Operations, Transporting
65
G
B65G 53/66 (2006.01) B01F 15/02 (2006.01) B01F 15/04 (2006.01) C04B 18/14 (2006.01) B01F 3/18 (2006.01)
Patent
CA 2110983
ABSTRACT OF THE DISCLOSURE Ultra fine powder is stored in a pneumatic transportation tank 20, and is discharged to a transporting conduit 23 while being fluidized by the pressurized air fed through a fluidizing air port 24. The ultra fine powder is fed to a weigher 30 provided at the other end of the transporting conduit 23, at which the weight of the transported ultra fine powder is weighed by a load cell 31. After the weighed value reaches 90% of a predetermined value, the fed amount of the pneumatic transportation air is reduced, and a bypass regulating valve 38 is adjusted to thus decelerate the transportation. When the weighed value reaches 100% of the predetermined value, the discharge of the ultra fine powder to the transporting conduit 23 is stopped. This method and the apparatus enable the storage, quantitative batch transportation and automatic weighing of the ultra fine powder such as silica fume. 2 8 -
Aoyagi Hayao
Kitazawa Kenzo
Mase Ken-Ichi
Mitsui Kenro
Okuno Toru
Keihin Ryoko Concrete Industry Corporation
Mitsubishi Materials Corporation
Smart & Biggar
Takenaka Corporation
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