Drying and gas or vapor contact with solids – Apparatus – With apparatus using centrifugal force
Patent
1990-10-16
1992-05-19
Bennet, Henry A.
Drying and gas or vapor contact with solids
Apparatus
With apparatus using centrifugal force
34 57R, 34 10, 110245, 122 4D, 432 68, 431170, F26B 1700
Patent
active
051135981
ABSTRACT:
An apparatus for powder falling type gas-solid contacting operation which comprises a hopper for feeding solid particles, a fluidizing bunker wherein the fed particles are fluidized by introduction of a fluidizing gas, a standpipe provided between the hopper and the bunker for feeding the particles from the hopper to the bunker, the lower end of the standpipe being located in the bunker, and a vertical gas-solid column connected to the bottom of the bunker for bringing the particles falling down from the bunker into contact with a gas countercurrently, in which a vertical tube is provided in the bunker so as to surround at least the lower end part of the standpipe and extend to a position below the lower end of the standpipe, whereby the height of the fluidized bed of the particles in the bunker is stably kept constant and the particles are fed from the bunker to the gas-solid column at a constant rate.
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"The Development and Practice of Cyclone Firing in Germany", by H. Seidl, A.S.M.E. and I.M.E. Joint Conference on Combustion, pp. 92-102, Jun. 1955, Boston, USA.
Wachi Shun
Yates John G.
Bennet Henry A.
Gromada Denise L.
Kanegafuchi Kagaku Kogyo & Kabushiki Kaisha
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