Concentrating evaporators – Spray type – Gaseous current
Patent
1990-05-25
1992-08-04
Manoharan, Virginia
Concentrating evaporators
Spray type
Gaseous current
23293A, 55259, 55526, 55527, 159 161, 159 431, 159 481, 202197, 202200, 202236, 203 40, 203 90, B01D 18
Patent
active
051356112
ABSTRACT:
A combined spray dryer and gas filter vessel in which a solution containing sulphuric acid and solids, and a hot drying gas, are introduced vertically through the top of the vessel into a spray zone. Solids are removed at a single point at the bottom of the vessel. Filters located above the spray zone clean gas leaving the vessel, and the cleaned gas exits at the top of the vessel. The compact design reduces insulation requirements while avoiding condensation which would create corrosion and yet it provides good separation of solids from gases.
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