Drying and gas or vapor contact with solids – Apparatus – With fluid current conveying of treated material
Patent
1996-11-27
2000-02-15
Bennett, Henry
Drying and gas or vapor contact with solids
Apparatus
With fluid current conveying of treated material
152465, 34372, F26B 1700
Patent
active
060238550
ABSTRACT:
The invention provides an air-assisted wiping device for use in a continuous-spray dryer. The air-assisted wiping device rotates inside the housing to continuously wipe heavy sticky powder from the walls of the housing using a wiper blade. The air-assisted wiping device includes an elongated hollow plenum having a flow-directing slot disposed along its length. Air received into the elongated hollow plenum is passed through the flow-directing slot onto a wiper blade, which is coupled to the elongated hollow plenum. The air discharged onto the wiper blade removes powder that collects on the leading side of the wiper blade.
REFERENCES:
patent: 3905790 (1975-09-01), Strickland
patent: 4095307 (1978-06-01), Brubaker
patent: 4950433 (1990-08-01), Chiu
patent: 5632100 (1997-05-01), Hansen
Anon., Chemical Engineering, 79: 64, 1982.
Goldberg Neil M.
Onwulata Charles I.
Smith Philip Wayne
Tomes Greg
Bennett Henry
Drake Malik N.
Fado John D.
Graeter Janelle S.
Silverstein M. Howard
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