| 摘要 |
A wet-type gas scrubber comprising a housing having an inlet for contaminated gas and an outlet for cleansed gas spaced above said inlet, means for wetting said gas with scrubbing liquid, first means between said inlet and outlet for accelerating said wetted gas to high velocity and forming a bed or layer of liquid foam bubbles across said housing between said inlet and outlet. Second means is provided for varying the thickness of said foam layer across said housing, thereby obtaining a substantially uniform gas velocity through the foam layer throughout the flow cross section of the foam bed.
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