| 摘要 |
655,038. Washing gases. PEASE, ANTHONY EQUIPMENT CO. Sept. 17, 1947. No. 25384. Convention date, Nov. 8. 1946. [Class 55(ii)] Fine suspended matter is removed from gases by treating a stream, accelerated to a velocity of e.g. over 200 ft. per sec. with a perpendicularly directed liquid preferably in jet form, so as to cause the gas to break up the liquid into fine droplets, e.g. below 100 microns in diameter, which are then separated from the stream. Gases, which may be pre-humidified, are directed through a venturi 18 into the throat of which washing liquid is discharged through a number of radial nozzles supplied from a manifold 24. Some of the nozzles may extend into the duct to ensure uniform distribution, and outwardly directed discharges from an axial pipe may also be provided. The expansion section 20 of the venturi may discharge tangentially into a separator 40 which may include spray nozzles 44 for a further washing stage employing the same or different liquid. The separator may embody a counter-current cooling tower. To vary the venturi dimensions, a passage of rectangular section may have an adjustable wall to vary the throat section and a sliding extension to change the length of the expansion section. Specification 389,462, is referred to.
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