Concentrating evaporators – Gaseous blast or current
Patent
1986-04-14
1988-03-29
Bashore, S. Leon
Concentrating evaporators
Gaseous blast or current
159 35, 159 44, 159DIG32, 202175, 202181, 202265, 203 1, 203 4, 203DIG18, B01D 130
Patent
active
047341599
ABSTRACT:
Apparatus and method for using a heated waste gas stream to evaporate a volatile component such as water or a solvent from a liquid solution comprises a flue to feed the gas stream from the source of heated gas; a container having an inner chamber to hold the liquid for evaporation of the volatile compound and an outer chamber connected to the flue which forms a gas channel substantially surrounding the inner chamber through which at least a portion of the gas stream flows to supply heat to the inner chamber and evaporate the volatile component of the liquid solution; an inlet to feed the liquid solution into the inner chamber; upper and lower liquid level sensors to control the quantity of liquid solution fed into the inner chamber to establish a liquid level therein; a sparger for agitating the liquid solution in the inner chamber; a sump below the container and connected to the flue to receive any condensate from the gas stream and any liquid leaking from the inner chamber; an outlet to combine, vent and discharge the evaporated volatile component from the inner chamber and the gas stream from the outer chamber; and an outlet for removing the liquid from the inner chamber. The sump includes a dam to prevent the condensate and leaking liquid from flowing back through the flue to the source of the gas stream and a discharge outlet to allow draining when the received condensate and leaking liquid exceed a predetermined amount.
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Bashore S. Leon
Manoharan V.
TFK Company, Inc.
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